Commit | Line | Data |
---|---|---|
55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
026331c4 | 4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
2740f0cf | 5 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
0c9ca11b | 6 | * Copyright 2015-2016 Intel Deutschland GmbH |
55682965 JB |
7 | */ |
8 | ||
9 | #include <linux/if.h> | |
10 | #include <linux/module.h> | |
11 | #include <linux/err.h> | |
5a0e3ad6 | 12 | #include <linux/slab.h> |
55682965 JB |
13 | #include <linux/list.h> |
14 | #include <linux/if_ether.h> | |
15 | #include <linux/ieee80211.h> | |
16 | #include <linux/nl80211.h> | |
17 | #include <linux/rtnetlink.h> | |
18 | #include <linux/netlink.h> | |
2a519311 | 19 | #include <linux/etherdevice.h> |
463d0183 | 20 | #include <net/net_namespace.h> |
55682965 JB |
21 | #include <net/genetlink.h> |
22 | #include <net/cfg80211.h> | |
463d0183 | 23 | #include <net/sock.h> |
2a0e047e | 24 | #include <net/inet_connection_sock.h> |
55682965 JB |
25 | #include "core.h" |
26 | #include "nl80211.h" | |
b2e1b302 | 27 | #include "reg.h" |
e35e4d28 | 28 | #include "rdev-ops.h" |
55682965 | 29 | |
5fb628e9 JM |
30 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
31 | struct genl_info *info, | |
32 | struct cfg80211_crypto_settings *settings, | |
33 | int cipher_limit); | |
34 | ||
f84f771d | 35 | static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 | 36 | struct genl_info *info); |
f84f771d | 37 | static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 JB |
38 | struct genl_info *info); |
39 | ||
55682965 JB |
40 | /* the netlink family */ |
41 | static struct genl_family nl80211_fam = { | |
fb4e1568 MH |
42 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ |
43 | .name = NL80211_GENL_NAME, /* have users key off the name instead */ | |
44 | .hdrsize = 0, /* no private header */ | |
45 | .version = 1, /* no particular meaning now */ | |
55682965 | 46 | .maxattr = NL80211_ATTR_MAX, |
463d0183 | 47 | .netnsok = true, |
4c476991 JB |
48 | .pre_doit = nl80211_pre_doit, |
49 | .post_doit = nl80211_post_doit, | |
55682965 JB |
50 | }; |
51 | ||
2a94fe48 JB |
52 | /* multicast groups */ |
53 | enum nl80211_multicast_groups { | |
54 | NL80211_MCGRP_CONFIG, | |
55 | NL80211_MCGRP_SCAN, | |
56 | NL80211_MCGRP_REGULATORY, | |
57 | NL80211_MCGRP_MLME, | |
567ffc35 | 58 | NL80211_MCGRP_VENDOR, |
2a94fe48 JB |
59 | NL80211_MCGRP_TESTMODE /* keep last - ifdef! */ |
60 | }; | |
61 | ||
62 | static const struct genl_multicast_group nl80211_mcgrps[] = { | |
71b836ec JB |
63 | [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG }, |
64 | [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN }, | |
65 | [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG }, | |
66 | [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME }, | |
67 | [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR }, | |
2a94fe48 | 68 | #ifdef CONFIG_NL80211_TESTMODE |
71b836ec | 69 | [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE } |
2a94fe48 JB |
70 | #endif |
71 | }; | |
72 | ||
89a54e48 JB |
73 | /* returns ERR_PTR values */ |
74 | static struct wireless_dev * | |
75 | __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs) | |
55682965 | 76 | { |
89a54e48 JB |
77 | struct cfg80211_registered_device *rdev; |
78 | struct wireless_dev *result = NULL; | |
79 | bool have_ifidx = attrs[NL80211_ATTR_IFINDEX]; | |
80 | bool have_wdev_id = attrs[NL80211_ATTR_WDEV]; | |
81 | u64 wdev_id; | |
82 | int wiphy_idx = -1; | |
83 | int ifidx = -1; | |
55682965 | 84 | |
5fe231e8 | 85 | ASSERT_RTNL(); |
55682965 | 86 | |
89a54e48 JB |
87 | if (!have_ifidx && !have_wdev_id) |
88 | return ERR_PTR(-EINVAL); | |
55682965 | 89 | |
89a54e48 JB |
90 | if (have_ifidx) |
91 | ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
92 | if (have_wdev_id) { | |
93 | wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
94 | wiphy_idx = wdev_id >> 32; | |
55682965 JB |
95 | } |
96 | ||
89a54e48 JB |
97 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
98 | struct wireless_dev *wdev; | |
99 | ||
100 | if (wiphy_net(&rdev->wiphy) != netns) | |
101 | continue; | |
102 | ||
103 | if (have_wdev_id && rdev->wiphy_idx != wiphy_idx) | |
104 | continue; | |
105 | ||
89a54e48 JB |
106 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
107 | if (have_ifidx && wdev->netdev && | |
108 | wdev->netdev->ifindex == ifidx) { | |
109 | result = wdev; | |
110 | break; | |
111 | } | |
112 | if (have_wdev_id && wdev->identifier == (u32)wdev_id) { | |
113 | result = wdev; | |
114 | break; | |
115 | } | |
116 | } | |
89a54e48 JB |
117 | |
118 | if (result) | |
119 | break; | |
120 | } | |
121 | ||
122 | if (result) | |
123 | return result; | |
124 | return ERR_PTR(-ENODEV); | |
55682965 JB |
125 | } |
126 | ||
a9455408 | 127 | static struct cfg80211_registered_device * |
878d9ec7 | 128 | __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) |
a9455408 | 129 | { |
7fee4778 JB |
130 | struct cfg80211_registered_device *rdev = NULL, *tmp; |
131 | struct net_device *netdev; | |
a9455408 | 132 | |
5fe231e8 | 133 | ASSERT_RTNL(); |
a9455408 | 134 | |
878d9ec7 | 135 | if (!attrs[NL80211_ATTR_WIPHY] && |
89a54e48 JB |
136 | !attrs[NL80211_ATTR_IFINDEX] && |
137 | !attrs[NL80211_ATTR_WDEV]) | |
7fee4778 JB |
138 | return ERR_PTR(-EINVAL); |
139 | ||
878d9ec7 | 140 | if (attrs[NL80211_ATTR_WIPHY]) |
7fee4778 | 141 | rdev = cfg80211_rdev_by_wiphy_idx( |
878d9ec7 | 142 | nla_get_u32(attrs[NL80211_ATTR_WIPHY])); |
a9455408 | 143 | |
89a54e48 JB |
144 | if (attrs[NL80211_ATTR_WDEV]) { |
145 | u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]); | |
146 | struct wireless_dev *wdev; | |
147 | bool found = false; | |
148 | ||
149 | tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32); | |
150 | if (tmp) { | |
151 | /* make sure wdev exists */ | |
89a54e48 JB |
152 | list_for_each_entry(wdev, &tmp->wdev_list, list) { |
153 | if (wdev->identifier != (u32)wdev_id) | |
154 | continue; | |
155 | found = true; | |
156 | break; | |
157 | } | |
89a54e48 JB |
158 | |
159 | if (!found) | |
160 | tmp = NULL; | |
161 | ||
162 | if (rdev && tmp != rdev) | |
163 | return ERR_PTR(-EINVAL); | |
164 | rdev = tmp; | |
165 | } | |
166 | } | |
167 | ||
878d9ec7 JB |
168 | if (attrs[NL80211_ATTR_IFINDEX]) { |
169 | int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); | |
7f2b8562 | 170 | netdev = __dev_get_by_index(netns, ifindex); |
7fee4778 JB |
171 | if (netdev) { |
172 | if (netdev->ieee80211_ptr) | |
f26cbf40 ZG |
173 | tmp = wiphy_to_rdev( |
174 | netdev->ieee80211_ptr->wiphy); | |
7fee4778 JB |
175 | else |
176 | tmp = NULL; | |
177 | ||
7fee4778 JB |
178 | /* not wireless device -- return error */ |
179 | if (!tmp) | |
180 | return ERR_PTR(-EINVAL); | |
181 | ||
182 | /* mismatch -- return error */ | |
183 | if (rdev && tmp != rdev) | |
184 | return ERR_PTR(-EINVAL); | |
185 | ||
186 | rdev = tmp; | |
a9455408 | 187 | } |
a9455408 | 188 | } |
a9455408 | 189 | |
4f7eff10 JB |
190 | if (!rdev) |
191 | return ERR_PTR(-ENODEV); | |
a9455408 | 192 | |
4f7eff10 JB |
193 | if (netns != wiphy_net(&rdev->wiphy)) |
194 | return ERR_PTR(-ENODEV); | |
195 | ||
196 | return rdev; | |
a9455408 JB |
197 | } |
198 | ||
199 | /* | |
200 | * This function returns a pointer to the driver | |
201 | * that the genl_info item that is passed refers to. | |
a9455408 JB |
202 | * |
203 | * The result of this can be a PTR_ERR and hence must | |
204 | * be checked with IS_ERR() for errors. | |
205 | */ | |
206 | static struct cfg80211_registered_device * | |
4f7eff10 | 207 | cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) |
a9455408 | 208 | { |
5fe231e8 | 209 | return __cfg80211_rdev_from_attrs(netns, info->attrs); |
a9455408 JB |
210 | } |
211 | ||
55682965 | 212 | /* policy for the attributes */ |
8cd4d456 | 213 | static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { |
55682965 JB |
214 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
215 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 216 | .len = 20-1 }, |
31888487 | 217 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
3d9d1d66 | 218 | |
72bdcf34 | 219 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 220 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
3d9d1d66 JB |
221 | [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 }, |
222 | [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 }, | |
223 | [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 }, | |
224 | ||
b9a5f8ca JM |
225 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
226 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
227 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
228 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 229 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
3057dbfd | 230 | [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG }, |
55682965 JB |
231 | |
232 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
233 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
234 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f | 235 | |
e007b857 EP |
236 | [NL80211_ATTR_MAC] = { .len = ETH_ALEN }, |
237 | [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN }, | |
41ade00f | 238 | |
b9454e83 | 239 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
240 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
241 | .len = WLAN_MAX_KEY_LEN }, | |
242 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
243 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
244 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
81962267 | 245 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
e31b8213 | 246 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
ed1b6cc7 JB |
247 | |
248 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
249 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
250 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
251 | .len = IEEE80211_MAX_DATA_LEN }, | |
252 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
253 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
254 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
255 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
256 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
257 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
258 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 259 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 260 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 261 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 | 262 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
a4f606ea | 263 | .len = IEEE80211_MAX_MESH_ID_LEN }, |
2ec600d6 | 264 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, |
9f1ba906 | 265 | |
b2e1b302 LR |
266 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
267 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
268 | ||
9f1ba906 JM |
269 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
270 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
271 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
272 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
273 | .len = NL80211_MAX_SUPP_RATES }, | |
50b12f59 | 274 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
36aedc90 | 275 | |
24bdd9f4 | 276 | [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED }, |
15d5dda6 | 277 | [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG }, |
93da9cc1 | 278 | |
6c739419 | 279 | [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN }, |
9aed3cc1 JM |
280 | |
281 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
282 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
283 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
284 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
285 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
286 | |
287 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
288 | .len = IEEE80211_MAX_SSID_LEN }, | |
289 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
290 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 291 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 292 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 293 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
294 | [NL80211_ATTR_STA_FLAGS2] = { |
295 | .len = sizeof(struct nl80211_sta_flag_update), | |
296 | }, | |
3f77316c | 297 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
298 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
299 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
300 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
301 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
302 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 303 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 304 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
305 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
306 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
307 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
308 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 309 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
310 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
311 | .len = IEEE80211_MAX_DATA_LEN }, | |
312 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 313 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 314 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 315 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 316 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
317 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
318 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 319 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
afe0cbf8 BR |
320 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
321 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
885a46d0 | 322 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
f7ca38df | 323 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
dbd2fd65 | 324 | [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
ff1b6e69 | 325 | [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED }, |
9c3990aa | 326 | [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 }, |
bbe6ad6d | 327 | [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 }, |
e5497d76 | 328 | [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED }, |
34850ab2 | 329 | [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED }, |
32e9de84 | 330 | [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 }, |
9946ecfb JM |
331 | [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY, |
332 | .len = IEEE80211_MAX_DATA_LEN }, | |
333 | [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY, | |
334 | .len = IEEE80211_MAX_DATA_LEN }, | |
f4b34b55 | 335 | [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, |
a1f1c21c | 336 | [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, |
e9f935e3 | 337 | [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, |
109086ce AN |
338 | [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, |
339 | [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, | |
340 | [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, | |
341 | [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, | |
342 | [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, | |
31fa97c5 | 343 | [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG }, |
e247bd90 | 344 | [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, |
00f740e1 AN |
345 | [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, |
346 | .len = IEEE80211_MAX_DATA_LEN }, | |
8b60b078 | 347 | [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 }, |
7e7c8926 BG |
348 | [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG }, |
349 | [NL80211_ATTR_HT_CAPABILITY_MASK] = { | |
350 | .len = NL80211_HT_CAPABILITY_LEN | |
351 | }, | |
1d9d9213 | 352 | [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 }, |
1b658f11 | 353 | [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 }, |
4486ea98 | 354 | [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 }, |
89a54e48 | 355 | [NL80211_ATTR_WDEV] = { .type = NLA_U64 }, |
57b5ce07 | 356 | [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 }, |
e39e5b5e | 357 | [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, }, |
f461be3e | 358 | [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN }, |
ed473771 | 359 | [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 }, |
53cabad7 JB |
360 | [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 }, |
361 | [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 }, | |
77765eaf VT |
362 | [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 }, |
363 | [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED }, | |
9d62a986 JM |
364 | [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 }, |
365 | [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, }, | |
3713b4e3 | 366 | [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, }, |
ee2aca34 JB |
367 | [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG }, |
368 | [NL80211_ATTR_VHT_CAPABILITY_MASK] = { | |
369 | .len = NL80211_VHT_CAPABILITY_LEN, | |
370 | }, | |
355199e0 JM |
371 | [NL80211_ATTR_MDID] = { .type = NLA_U16 }, |
372 | [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY, | |
373 | .len = IEEE80211_MAX_DATA_LEN }, | |
5e4b6f56 | 374 | [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 }, |
16ef1fe2 SW |
375 | [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 }, |
376 | [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG }, | |
377 | [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED }, | |
9a774c78 AO |
378 | [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY }, |
379 | [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY }, | |
c01fc9ad SD |
380 | [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY }, |
381 | [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY }, | |
5336fa88 | 382 | [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG }, |
60f4a7b1 | 383 | [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 }, |
ad7e718c JB |
384 | [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 }, |
385 | [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 }, | |
386 | [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY }, | |
fa9ffc74 KP |
387 | [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY, |
388 | .len = IEEE80211_QOS_MAP_LEN_MAX }, | |
1df4a510 JM |
389 | [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN }, |
390 | [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 }, | |
df942e7b | 391 | [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 }, |
18e5ca65 | 392 | [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG }, |
34d22ce2 | 393 | [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY }, |
bab5ab7d | 394 | [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG }, |
960d01ac JB |
395 | [NL80211_ATTR_TSID] = { .type = NLA_U8 }, |
396 | [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 }, | |
397 | [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 }, | |
18998c38 | 398 | [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 }, |
ad2b26ab | 399 | [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN }, |
1bdd716c | 400 | [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG }, |
4b681c82 | 401 | [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 }, |
9c748934 | 402 | [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 }, |
05050753 | 403 | [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG }, |
34d50519 | 404 | [NL80211_ATTR_PBSS] = { .type = NLA_FLAG }, |
55682965 JB |
405 | }; |
406 | ||
e31b8213 | 407 | /* policy for the key attributes */ |
b54452b0 | 408 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 409 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
410 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
411 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
81962267 | 412 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 }, |
b9454e83 JB |
413 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, |
414 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 415 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
dbd2fd65 JB |
416 | [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, |
417 | }; | |
418 | ||
419 | /* policy for the key default flags */ | |
420 | static const struct nla_policy | |
421 | nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = { | |
422 | [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG }, | |
423 | [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG }, | |
b9454e83 JB |
424 | }; |
425 | ||
ff1b6e69 JB |
426 | /* policy for WoWLAN attributes */ |
427 | static const struct nla_policy | |
428 | nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { | |
429 | [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG }, | |
430 | [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG }, | |
431 | [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG }, | |
432 | [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED }, | |
77dbbb13 JB |
433 | [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG }, |
434 | [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG }, | |
435 | [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, | |
436 | [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, | |
2a0e047e | 437 | [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED }, |
8cd4d456 | 438 | [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED }, |
2a0e047e JB |
439 | }; |
440 | ||
441 | static const struct nla_policy | |
442 | nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = { | |
443 | [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 }, | |
444 | [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 }, | |
445 | [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN }, | |
446 | [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 }, | |
447 | [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 }, | |
448 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 }, | |
449 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = { | |
450 | .len = sizeof(struct nl80211_wowlan_tcp_data_seq) | |
451 | }, | |
452 | [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = { | |
453 | .len = sizeof(struct nl80211_wowlan_tcp_data_token) | |
454 | }, | |
455 | [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 }, | |
456 | [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 }, | |
457 | [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 }, | |
ff1b6e69 JB |
458 | }; |
459 | ||
be29b99a AK |
460 | /* policy for coalesce rule attributes */ |
461 | static const struct nla_policy | |
462 | nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = { | |
463 | [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 }, | |
464 | [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 }, | |
465 | [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED }, | |
466 | }; | |
467 | ||
e5497d76 JB |
468 | /* policy for GTK rekey offload attributes */ |
469 | static const struct nla_policy | |
470 | nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = { | |
471 | [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN }, | |
472 | [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN }, | |
473 | [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN }, | |
474 | }; | |
475 | ||
a1f1c21c LC |
476 | static const struct nla_policy |
477 | nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = { | |
4a4ab0d7 | 478 | [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY, |
a1f1c21c | 479 | .len = IEEE80211_MAX_SSID_LEN }, |
88e920b4 | 480 | [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 }, |
a1f1c21c LC |
481 | }; |
482 | ||
3b06d277 AS |
483 | static const struct nla_policy |
484 | nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = { | |
485 | [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 }, | |
486 | [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 }, | |
487 | }; | |
488 | ||
97990a06 JB |
489 | static int nl80211_prepare_wdev_dump(struct sk_buff *skb, |
490 | struct netlink_callback *cb, | |
491 | struct cfg80211_registered_device **rdev, | |
492 | struct wireless_dev **wdev) | |
a043897a | 493 | { |
97990a06 | 494 | int err; |
a043897a | 495 | |
97990a06 | 496 | rtnl_lock(); |
a043897a | 497 | |
97990a06 JB |
498 | if (!cb->args[0]) { |
499 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
500 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
501 | nl80211_policy); | |
502 | if (err) | |
503 | goto out_unlock; | |
67748893 | 504 | |
97990a06 JB |
505 | *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), |
506 | nl80211_fam.attrbuf); | |
507 | if (IS_ERR(*wdev)) { | |
508 | err = PTR_ERR(*wdev); | |
509 | goto out_unlock; | |
510 | } | |
f26cbf40 | 511 | *rdev = wiphy_to_rdev((*wdev)->wiphy); |
c319d50b JB |
512 | /* 0 is the first index - add 1 to parse only once */ |
513 | cb->args[0] = (*rdev)->wiphy_idx + 1; | |
97990a06 JB |
514 | cb->args[1] = (*wdev)->identifier; |
515 | } else { | |
c319d50b JB |
516 | /* subtract the 1 again here */ |
517 | struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1); | |
97990a06 | 518 | struct wireless_dev *tmp; |
67748893 | 519 | |
97990a06 JB |
520 | if (!wiphy) { |
521 | err = -ENODEV; | |
522 | goto out_unlock; | |
523 | } | |
f26cbf40 | 524 | *rdev = wiphy_to_rdev(wiphy); |
97990a06 | 525 | *wdev = NULL; |
67748893 | 526 | |
97990a06 JB |
527 | list_for_each_entry(tmp, &(*rdev)->wdev_list, list) { |
528 | if (tmp->identifier == cb->args[1]) { | |
529 | *wdev = tmp; | |
530 | break; | |
531 | } | |
532 | } | |
67748893 | 533 | |
97990a06 JB |
534 | if (!*wdev) { |
535 | err = -ENODEV; | |
536 | goto out_unlock; | |
537 | } | |
67748893 JB |
538 | } |
539 | ||
67748893 | 540 | return 0; |
97990a06 | 541 | out_unlock: |
67748893 JB |
542 | rtnl_unlock(); |
543 | return err; | |
544 | } | |
545 | ||
97990a06 | 546 | static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev) |
67748893 | 547 | { |
67748893 JB |
548 | rtnl_unlock(); |
549 | } | |
550 | ||
f4a11bb0 JB |
551 | /* IE validation */ |
552 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
553 | { | |
554 | const u8 *pos; | |
555 | int len; | |
556 | ||
557 | if (!attr) | |
558 | return true; | |
559 | ||
560 | pos = nla_data(attr); | |
561 | len = nla_len(attr); | |
562 | ||
563 | while (len) { | |
564 | u8 elemlen; | |
565 | ||
566 | if (len < 2) | |
567 | return false; | |
568 | len -= 2; | |
569 | ||
570 | elemlen = pos[1]; | |
571 | if (elemlen > len) | |
572 | return false; | |
573 | ||
574 | len -= elemlen; | |
575 | pos += 2 + elemlen; | |
576 | } | |
577 | ||
578 | return true; | |
579 | } | |
580 | ||
55682965 | 581 | /* message building helper */ |
15e47304 | 582 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq, |
55682965 JB |
583 | int flags, u8 cmd) |
584 | { | |
585 | /* since there is no private header just add the generic one */ | |
15e47304 | 586 | return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd); |
55682965 JB |
587 | } |
588 | ||
5dab3b8a | 589 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
cdc89b97 JB |
590 | struct ieee80211_channel *chan, |
591 | bool large) | |
5dab3b8a | 592 | { |
ea077c1c RL |
593 | /* Some channels must be completely excluded from the |
594 | * list to protect old user-space tools from breaking | |
595 | */ | |
596 | if (!large && chan->flags & | |
597 | (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ)) | |
598 | return 0; | |
599 | ||
9360ffd1 DM |
600 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, |
601 | chan->center_freq)) | |
602 | goto nla_put_failure; | |
5dab3b8a | 603 | |
9360ffd1 DM |
604 | if ((chan->flags & IEEE80211_CHAN_DISABLED) && |
605 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED)) | |
606 | goto nla_put_failure; | |
8fe02e16 LR |
607 | if (chan->flags & IEEE80211_CHAN_NO_IR) { |
608 | if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR)) | |
609 | goto nla_put_failure; | |
610 | if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS)) | |
611 | goto nla_put_failure; | |
612 | } | |
cdc89b97 JB |
613 | if (chan->flags & IEEE80211_CHAN_RADAR) { |
614 | if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR)) | |
615 | goto nla_put_failure; | |
616 | if (large) { | |
617 | u32 time; | |
618 | ||
619 | time = elapsed_jiffies_msecs(chan->dfs_state_entered); | |
620 | ||
621 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE, | |
622 | chan->dfs_state)) | |
623 | goto nla_put_failure; | |
624 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, | |
625 | time)) | |
626 | goto nla_put_failure; | |
089027e5 JD |
627 | if (nla_put_u32(msg, |
628 | NL80211_FREQUENCY_ATTR_DFS_CAC_TIME, | |
629 | chan->dfs_cac_ms)) | |
630 | goto nla_put_failure; | |
cdc89b97 JB |
631 | } |
632 | } | |
5dab3b8a | 633 | |
fe1abafd JB |
634 | if (large) { |
635 | if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) && | |
636 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS)) | |
637 | goto nla_put_failure; | |
638 | if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) && | |
639 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS)) | |
640 | goto nla_put_failure; | |
641 | if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) && | |
642 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ)) | |
643 | goto nla_put_failure; | |
644 | if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) && | |
645 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ)) | |
646 | goto nla_put_failure; | |
570dbde1 DS |
647 | if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) && |
648 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY)) | |
649 | goto nla_put_failure; | |
06f207fc AN |
650 | if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) && |
651 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT)) | |
570dbde1 | 652 | goto nla_put_failure; |
ea077c1c RL |
653 | if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) && |
654 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ)) | |
655 | goto nla_put_failure; | |
656 | if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) && | |
657 | nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ)) | |
658 | goto nla_put_failure; | |
fe1abafd JB |
659 | } |
660 | ||
9360ffd1 DM |
661 | if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
662 | DBM_TO_MBM(chan->max_power))) | |
663 | goto nla_put_failure; | |
5dab3b8a LR |
664 | |
665 | return 0; | |
666 | ||
667 | nla_put_failure: | |
668 | return -ENOBUFS; | |
669 | } | |
670 | ||
55682965 JB |
671 | /* netlink command implementations */ |
672 | ||
b9454e83 JB |
673 | struct key_parse { |
674 | struct key_params p; | |
675 | int idx; | |
e31b8213 | 676 | int type; |
b9454e83 | 677 | bool def, defmgmt; |
dbd2fd65 | 678 | bool def_uni, def_multi; |
b9454e83 JB |
679 | }; |
680 | ||
681 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
682 | { | |
683 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
684 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
685 | nl80211_key_policy); | |
686 | if (err) | |
687 | return err; | |
688 | ||
689 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
690 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
691 | ||
dbd2fd65 JB |
692 | if (k->def) { |
693 | k->def_uni = true; | |
694 | k->def_multi = true; | |
695 | } | |
696 | if (k->defmgmt) | |
697 | k->def_multi = true; | |
698 | ||
b9454e83 JB |
699 | if (tb[NL80211_KEY_IDX]) |
700 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
701 | ||
702 | if (tb[NL80211_KEY_DATA]) { | |
703 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
704 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
705 | } | |
706 | ||
707 | if (tb[NL80211_KEY_SEQ]) { | |
708 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
709 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
710 | } | |
711 | ||
712 | if (tb[NL80211_KEY_CIPHER]) | |
713 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
714 | ||
e31b8213 JB |
715 | if (tb[NL80211_KEY_TYPE]) { |
716 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
717 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
718 | return -EINVAL; | |
719 | } | |
720 | ||
dbd2fd65 JB |
721 | if (tb[NL80211_KEY_DEFAULT_TYPES]) { |
722 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
2da8f419 JB |
723 | err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, |
724 | tb[NL80211_KEY_DEFAULT_TYPES], | |
725 | nl80211_key_default_policy); | |
dbd2fd65 JB |
726 | if (err) |
727 | return err; | |
728 | ||
729 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
730 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
731 | } | |
732 | ||
b9454e83 JB |
733 | return 0; |
734 | } | |
735 | ||
736 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
737 | { | |
738 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
739 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
740 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
741 | } | |
742 | ||
743 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
744 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
745 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
746 | } | |
747 | ||
748 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
749 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
750 | ||
751 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
752 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
753 | ||
754 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
755 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
756 | ||
dbd2fd65 JB |
757 | if (k->def) { |
758 | k->def_uni = true; | |
759 | k->def_multi = true; | |
760 | } | |
761 | if (k->defmgmt) | |
762 | k->def_multi = true; | |
763 | ||
e31b8213 JB |
764 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
765 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
766 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
767 | return -EINVAL; | |
768 | } | |
769 | ||
dbd2fd65 JB |
770 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) { |
771 | struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES]; | |
772 | int err = nla_parse_nested( | |
773 | kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1, | |
774 | info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES], | |
775 | nl80211_key_default_policy); | |
776 | if (err) | |
777 | return err; | |
778 | ||
779 | k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST]; | |
780 | k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; | |
781 | } | |
782 | ||
b9454e83 JB |
783 | return 0; |
784 | } | |
785 | ||
786 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
787 | { | |
788 | int err; | |
789 | ||
790 | memset(k, 0, sizeof(*k)); | |
791 | k->idx = -1; | |
e31b8213 | 792 | k->type = -1; |
b9454e83 JB |
793 | |
794 | if (info->attrs[NL80211_ATTR_KEY]) | |
795 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
796 | else | |
797 | err = nl80211_parse_key_old(info, k); | |
798 | ||
799 | if (err) | |
800 | return err; | |
801 | ||
802 | if (k->def && k->defmgmt) | |
803 | return -EINVAL; | |
804 | ||
dbd2fd65 JB |
805 | if (k->defmgmt) { |
806 | if (k->def_uni || !k->def_multi) | |
807 | return -EINVAL; | |
808 | } | |
809 | ||
b9454e83 JB |
810 | if (k->idx != -1) { |
811 | if (k->defmgmt) { | |
812 | if (k->idx < 4 || k->idx > 5) | |
813 | return -EINVAL; | |
814 | } else if (k->def) { | |
815 | if (k->idx < 0 || k->idx > 3) | |
816 | return -EINVAL; | |
817 | } else { | |
818 | if (k->idx < 0 || k->idx > 5) | |
819 | return -EINVAL; | |
820 | } | |
821 | } | |
822 | ||
823 | return 0; | |
824 | } | |
825 | ||
fffd0934 JB |
826 | static struct cfg80211_cached_keys * |
827 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
de7044ee | 828 | struct nlattr *keys, bool *no_ht) |
fffd0934 JB |
829 | { |
830 | struct key_parse parse; | |
831 | struct nlattr *key; | |
832 | struct cfg80211_cached_keys *result; | |
833 | int rem, err, def = 0; | |
834 | ||
835 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
836 | if (!result) | |
837 | return ERR_PTR(-ENOMEM); | |
838 | ||
839 | result->def = -1; | |
840 | result->defmgmt = -1; | |
841 | ||
842 | nla_for_each_nested(key, keys, rem) { | |
843 | memset(&parse, 0, sizeof(parse)); | |
844 | parse.idx = -1; | |
845 | ||
846 | err = nl80211_parse_key_new(key, &parse); | |
847 | if (err) | |
848 | goto error; | |
849 | err = -EINVAL; | |
850 | if (!parse.p.key) | |
851 | goto error; | |
852 | if (parse.idx < 0 || parse.idx > 4) | |
853 | goto error; | |
854 | if (parse.def) { | |
855 | if (def) | |
856 | goto error; | |
857 | def = 1; | |
858 | result->def = parse.idx; | |
dbd2fd65 JB |
859 | if (!parse.def_uni || !parse.def_multi) |
860 | goto error; | |
fffd0934 JB |
861 | } else if (parse.defmgmt) |
862 | goto error; | |
863 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 864 | parse.idx, false, NULL); |
fffd0934 JB |
865 | if (err) |
866 | goto error; | |
867 | result->params[parse.idx].cipher = parse.p.cipher; | |
868 | result->params[parse.idx].key_len = parse.p.key_len; | |
869 | result->params[parse.idx].key = result->data[parse.idx]; | |
870 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
de7044ee SM |
871 | |
872 | if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 || | |
873 | parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) { | |
874 | if (no_ht) | |
875 | *no_ht = true; | |
876 | } | |
fffd0934 JB |
877 | } |
878 | ||
879 | return result; | |
880 | error: | |
881 | kfree(result); | |
882 | return ERR_PTR(err); | |
883 | } | |
884 | ||
885 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
886 | { | |
887 | ASSERT_WDEV_LOCK(wdev); | |
888 | ||
fffd0934 JB |
889 | switch (wdev->iftype) { |
890 | case NL80211_IFTYPE_AP: | |
891 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 892 | case NL80211_IFTYPE_P2P_GO: |
ff973af7 | 893 | case NL80211_IFTYPE_MESH_POINT: |
fffd0934 JB |
894 | break; |
895 | case NL80211_IFTYPE_ADHOC: | |
fffd0934 | 896 | case NL80211_IFTYPE_STATION: |
074ac8df | 897 | case NL80211_IFTYPE_P2P_CLIENT: |
ceca7b71 | 898 | if (!wdev->current_bss) |
fffd0934 JB |
899 | return -ENOLINK; |
900 | break; | |
de4fcbad | 901 | case NL80211_IFTYPE_UNSPECIFIED: |
6e0bd6c3 | 902 | case NL80211_IFTYPE_OCB: |
de4fcbad JB |
903 | case NL80211_IFTYPE_MONITOR: |
904 | case NL80211_IFTYPE_P2P_DEVICE: | |
905 | case NL80211_IFTYPE_WDS: | |
906 | case NUM_NL80211_IFTYPES: | |
fffd0934 JB |
907 | return -EINVAL; |
908 | } | |
909 | ||
910 | return 0; | |
911 | } | |
912 | ||
664834de JM |
913 | static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy, |
914 | struct nlattr *tb) | |
915 | { | |
916 | struct ieee80211_channel *chan; | |
917 | ||
918 | if (tb == NULL) | |
919 | return NULL; | |
920 | chan = ieee80211_get_channel(wiphy, nla_get_u32(tb)); | |
921 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) | |
922 | return NULL; | |
923 | return chan; | |
924 | } | |
925 | ||
7527a782 JB |
926 | static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) |
927 | { | |
928 | struct nlattr *nl_modes = nla_nest_start(msg, attr); | |
929 | int i; | |
930 | ||
931 | if (!nl_modes) | |
932 | goto nla_put_failure; | |
933 | ||
934 | i = 0; | |
935 | while (ifmodes) { | |
9360ffd1 DM |
936 | if ((ifmodes & 1) && nla_put_flag(msg, i)) |
937 | goto nla_put_failure; | |
7527a782 JB |
938 | ifmodes >>= 1; |
939 | i++; | |
940 | } | |
941 | ||
942 | nla_nest_end(msg, nl_modes); | |
943 | return 0; | |
944 | ||
945 | nla_put_failure: | |
946 | return -ENOBUFS; | |
947 | } | |
948 | ||
949 | static int nl80211_put_iface_combinations(struct wiphy *wiphy, | |
cdc89b97 JB |
950 | struct sk_buff *msg, |
951 | bool large) | |
7527a782 JB |
952 | { |
953 | struct nlattr *nl_combis; | |
954 | int i, j; | |
955 | ||
956 | nl_combis = nla_nest_start(msg, | |
957 | NL80211_ATTR_INTERFACE_COMBINATIONS); | |
958 | if (!nl_combis) | |
959 | goto nla_put_failure; | |
960 | ||
961 | for (i = 0; i < wiphy->n_iface_combinations; i++) { | |
962 | const struct ieee80211_iface_combination *c; | |
963 | struct nlattr *nl_combi, *nl_limits; | |
964 | ||
965 | c = &wiphy->iface_combinations[i]; | |
966 | ||
967 | nl_combi = nla_nest_start(msg, i + 1); | |
968 | if (!nl_combi) | |
969 | goto nla_put_failure; | |
970 | ||
971 | nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS); | |
972 | if (!nl_limits) | |
973 | goto nla_put_failure; | |
974 | ||
975 | for (j = 0; j < c->n_limits; j++) { | |
976 | struct nlattr *nl_limit; | |
977 | ||
978 | nl_limit = nla_nest_start(msg, j + 1); | |
979 | if (!nl_limit) | |
980 | goto nla_put_failure; | |
9360ffd1 DM |
981 | if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX, |
982 | c->limits[j].max)) | |
983 | goto nla_put_failure; | |
7527a782 JB |
984 | if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES, |
985 | c->limits[j].types)) | |
986 | goto nla_put_failure; | |
987 | nla_nest_end(msg, nl_limit); | |
988 | } | |
989 | ||
990 | nla_nest_end(msg, nl_limits); | |
991 | ||
9360ffd1 DM |
992 | if (c->beacon_int_infra_match && |
993 | nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH)) | |
994 | goto nla_put_failure; | |
995 | if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS, | |
996 | c->num_different_channels) || | |
997 | nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM, | |
998 | c->max_interfaces)) | |
999 | goto nla_put_failure; | |
cdc89b97 | 1000 | if (large && |
8c48b50a FF |
1001 | (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS, |
1002 | c->radar_detect_widths) || | |
1003 | nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS, | |
1004 | c->radar_detect_regions))) | |
cdc89b97 | 1005 | goto nla_put_failure; |
7527a782 JB |
1006 | |
1007 | nla_nest_end(msg, nl_combi); | |
1008 | } | |
1009 | ||
1010 | nla_nest_end(msg, nl_combis); | |
1011 | ||
1012 | return 0; | |
1013 | nla_put_failure: | |
1014 | return -ENOBUFS; | |
1015 | } | |
1016 | ||
3713b4e3 | 1017 | #ifdef CONFIG_PM |
b56cf720 JB |
1018 | static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev, |
1019 | struct sk_buff *msg) | |
1020 | { | |
964dc9e2 | 1021 | const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp; |
b56cf720 JB |
1022 | struct nlattr *nl_tcp; |
1023 | ||
1024 | if (!tcp) | |
1025 | return 0; | |
1026 | ||
1027 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); | |
1028 | if (!nl_tcp) | |
1029 | return -ENOBUFS; | |
1030 | ||
1031 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
1032 | tcp->data_payload_max)) | |
1033 | return -ENOBUFS; | |
1034 | ||
1035 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
1036 | tcp->data_payload_max)) | |
1037 | return -ENOBUFS; | |
1038 | ||
1039 | if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ)) | |
1040 | return -ENOBUFS; | |
1041 | ||
1042 | if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, | |
1043 | sizeof(*tcp->tok), tcp->tok)) | |
1044 | return -ENOBUFS; | |
1045 | ||
1046 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, | |
1047 | tcp->data_interval_max)) | |
1048 | return -ENOBUFS; | |
1049 | ||
1050 | if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, | |
1051 | tcp->wake_payload_max)) | |
1052 | return -ENOBUFS; | |
1053 | ||
1054 | nla_nest_end(msg, nl_tcp); | |
1055 | return 0; | |
1056 | } | |
1057 | ||
3713b4e3 | 1058 | static int nl80211_send_wowlan(struct sk_buff *msg, |
1b8ec87a | 1059 | struct cfg80211_registered_device *rdev, |
b56cf720 | 1060 | bool large) |
55682965 | 1061 | { |
3713b4e3 | 1062 | struct nlattr *nl_wowlan; |
55682965 | 1063 | |
1b8ec87a | 1064 | if (!rdev->wiphy.wowlan) |
3713b4e3 | 1065 | return 0; |
55682965 | 1066 | |
3713b4e3 JB |
1067 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); |
1068 | if (!nl_wowlan) | |
1069 | return -ENOBUFS; | |
9360ffd1 | 1070 | |
1b8ec87a | 1071 | if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) && |
3713b4e3 | 1072 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || |
1b8ec87a | 1073 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) && |
3713b4e3 | 1074 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || |
1b8ec87a | 1075 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) && |
3713b4e3 | 1076 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || |
1b8ec87a | 1077 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && |
3713b4e3 | 1078 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || |
1b8ec87a | 1079 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && |
3713b4e3 | 1080 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || |
1b8ec87a | 1081 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && |
3713b4e3 | 1082 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || |
1b8ec87a | 1083 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && |
3713b4e3 | 1084 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || |
1b8ec87a | 1085 | ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) && |
3713b4e3 JB |
1086 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) |
1087 | return -ENOBUFS; | |
9360ffd1 | 1088 | |
1b8ec87a | 1089 | if (rdev->wiphy.wowlan->n_patterns) { |
50ac6607 | 1090 | struct nl80211_pattern_support pat = { |
1b8ec87a ZG |
1091 | .max_patterns = rdev->wiphy.wowlan->n_patterns, |
1092 | .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len, | |
1093 | .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len, | |
1094 | .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset, | |
3713b4e3 | 1095 | }; |
9360ffd1 | 1096 | |
3713b4e3 JB |
1097 | if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, |
1098 | sizeof(pat), &pat)) | |
1099 | return -ENOBUFS; | |
1100 | } | |
9360ffd1 | 1101 | |
75453ccb LC |
1102 | if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) && |
1103 | nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT, | |
1104 | rdev->wiphy.wowlan->max_nd_match_sets)) | |
1105 | return -ENOBUFS; | |
1106 | ||
1b8ec87a | 1107 | if (large && nl80211_send_wowlan_tcp_caps(rdev, msg)) |
b56cf720 JB |
1108 | return -ENOBUFS; |
1109 | ||
3713b4e3 | 1110 | nla_nest_end(msg, nl_wowlan); |
9360ffd1 | 1111 | |
3713b4e3 JB |
1112 | return 0; |
1113 | } | |
1114 | #endif | |
9360ffd1 | 1115 | |
be29b99a | 1116 | static int nl80211_send_coalesce(struct sk_buff *msg, |
1b8ec87a | 1117 | struct cfg80211_registered_device *rdev) |
be29b99a AK |
1118 | { |
1119 | struct nl80211_coalesce_rule_support rule; | |
1120 | ||
1b8ec87a | 1121 | if (!rdev->wiphy.coalesce) |
be29b99a AK |
1122 | return 0; |
1123 | ||
1b8ec87a ZG |
1124 | rule.max_rules = rdev->wiphy.coalesce->n_rules; |
1125 | rule.max_delay = rdev->wiphy.coalesce->max_delay; | |
1126 | rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns; | |
1127 | rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len; | |
1128 | rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len; | |
1129 | rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset; | |
be29b99a AK |
1130 | |
1131 | if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule)) | |
1132 | return -ENOBUFS; | |
1133 | ||
1134 | return 0; | |
1135 | } | |
1136 | ||
3713b4e3 JB |
1137 | static int nl80211_send_band_rateinfo(struct sk_buff *msg, |
1138 | struct ieee80211_supported_band *sband) | |
1139 | { | |
1140 | struct nlattr *nl_rates, *nl_rate; | |
1141 | struct ieee80211_rate *rate; | |
1142 | int i; | |
87bbbe22 | 1143 | |
3713b4e3 JB |
1144 | /* add HT info */ |
1145 | if (sband->ht_cap.ht_supported && | |
1146 | (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
1147 | sizeof(sband->ht_cap.mcs), | |
1148 | &sband->ht_cap.mcs) || | |
1149 | nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
1150 | sband->ht_cap.cap) || | |
1151 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
1152 | sband->ht_cap.ampdu_factor) || | |
1153 | nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
1154 | sband->ht_cap.ampdu_density))) | |
1155 | return -ENOBUFS; | |
afe0cbf8 | 1156 | |
3713b4e3 JB |
1157 | /* add VHT info */ |
1158 | if (sband->vht_cap.vht_supported && | |
1159 | (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET, | |
1160 | sizeof(sband->vht_cap.vht_mcs), | |
1161 | &sband->vht_cap.vht_mcs) || | |
1162 | nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA, | |
1163 | sband->vht_cap.cap))) | |
1164 | return -ENOBUFS; | |
f59ac048 | 1165 | |
3713b4e3 JB |
1166 | /* add bitrates */ |
1167 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
1168 | if (!nl_rates) | |
1169 | return -ENOBUFS; | |
ee688b00 | 1170 | |
3713b4e3 JB |
1171 | for (i = 0; i < sband->n_bitrates; i++) { |
1172 | nl_rate = nla_nest_start(msg, i); | |
1173 | if (!nl_rate) | |
1174 | return -ENOBUFS; | |
ee688b00 | 1175 | |
3713b4e3 JB |
1176 | rate = &sband->bitrates[i]; |
1177 | if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE, | |
1178 | rate->bitrate)) | |
1179 | return -ENOBUFS; | |
1180 | if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && | |
1181 | nla_put_flag(msg, | |
1182 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE)) | |
1183 | return -ENOBUFS; | |
ee688b00 | 1184 | |
3713b4e3 JB |
1185 | nla_nest_end(msg, nl_rate); |
1186 | } | |
d51626df | 1187 | |
3713b4e3 | 1188 | nla_nest_end(msg, nl_rates); |
bf0c111e | 1189 | |
3713b4e3 JB |
1190 | return 0; |
1191 | } | |
ee688b00 | 1192 | |
3713b4e3 JB |
1193 | static int |
1194 | nl80211_send_mgmt_stypes(struct sk_buff *msg, | |
1195 | const struct ieee80211_txrx_stypes *mgmt_stypes) | |
1196 | { | |
1197 | u16 stypes; | |
1198 | struct nlattr *nl_ftypes, *nl_ifs; | |
1199 | enum nl80211_iftype ift; | |
1200 | int i; | |
ee688b00 | 1201 | |
3713b4e3 JB |
1202 | if (!mgmt_stypes) |
1203 | return 0; | |
5dab3b8a | 1204 | |
3713b4e3 JB |
1205 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); |
1206 | if (!nl_ifs) | |
1207 | return -ENOBUFS; | |
e2f367f2 | 1208 | |
3713b4e3 JB |
1209 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { |
1210 | nl_ftypes = nla_nest_start(msg, ift); | |
1211 | if (!nl_ftypes) | |
1212 | return -ENOBUFS; | |
1213 | i = 0; | |
1214 | stypes = mgmt_stypes[ift].tx; | |
1215 | while (stypes) { | |
1216 | if ((stypes & 1) && | |
1217 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1218 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1219 | return -ENOBUFS; | |
1220 | stypes >>= 1; | |
1221 | i++; | |
ee688b00 | 1222 | } |
3713b4e3 JB |
1223 | nla_nest_end(msg, nl_ftypes); |
1224 | } | |
ee688b00 | 1225 | |
3713b4e3 | 1226 | nla_nest_end(msg, nl_ifs); |
ee688b00 | 1227 | |
3713b4e3 JB |
1228 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
1229 | if (!nl_ifs) | |
1230 | return -ENOBUFS; | |
ee688b00 | 1231 | |
3713b4e3 JB |
1232 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { |
1233 | nl_ftypes = nla_nest_start(msg, ift); | |
1234 | if (!nl_ftypes) | |
1235 | return -ENOBUFS; | |
1236 | i = 0; | |
1237 | stypes = mgmt_stypes[ift].rx; | |
1238 | while (stypes) { | |
1239 | if ((stypes & 1) && | |
1240 | nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE, | |
1241 | (i << 4) | IEEE80211_FTYPE_MGMT)) | |
1242 | return -ENOBUFS; | |
1243 | stypes >>= 1; | |
1244 | i++; | |
1245 | } | |
1246 | nla_nest_end(msg, nl_ftypes); | |
1247 | } | |
1248 | nla_nest_end(msg, nl_ifs); | |
ee688b00 | 1249 | |
3713b4e3 JB |
1250 | return 0; |
1251 | } | |
ee688b00 | 1252 | |
86e8cf98 JB |
1253 | struct nl80211_dump_wiphy_state { |
1254 | s64 filter_wiphy; | |
1255 | long start; | |
1256 | long split_start, band_start, chan_start; | |
1257 | bool split; | |
1258 | }; | |
1259 | ||
1b8ec87a | 1260 | static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, |
3bb20556 | 1261 | enum nl80211_commands cmd, |
3713b4e3 | 1262 | struct sk_buff *msg, u32 portid, u32 seq, |
86e8cf98 | 1263 | int flags, struct nl80211_dump_wiphy_state *state) |
3713b4e3 JB |
1264 | { |
1265 | void *hdr; | |
1266 | struct nlattr *nl_bands, *nl_band; | |
1267 | struct nlattr *nl_freqs, *nl_freq; | |
1268 | struct nlattr *nl_cmds; | |
1269 | enum ieee80211_band band; | |
1270 | struct ieee80211_channel *chan; | |
1271 | int i; | |
1272 | const struct ieee80211_txrx_stypes *mgmt_stypes = | |
1b8ec87a | 1273 | rdev->wiphy.mgmt_stypes; |
fe1abafd | 1274 | u32 features; |
ee688b00 | 1275 | |
3bb20556 | 1276 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
3713b4e3 JB |
1277 | if (!hdr) |
1278 | return -ENOBUFS; | |
ee688b00 | 1279 | |
86e8cf98 JB |
1280 | if (WARN_ON(!state)) |
1281 | return -EINVAL; | |
ee688b00 | 1282 | |
1b8ec87a | 1283 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
3713b4e3 | 1284 | nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, |
1b8ec87a | 1285 | wiphy_name(&rdev->wiphy)) || |
3713b4e3 JB |
1286 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
1287 | cfg80211_rdev_list_generation)) | |
8fdc621d JB |
1288 | goto nla_put_failure; |
1289 | ||
3bb20556 JB |
1290 | if (cmd != NL80211_CMD_NEW_WIPHY) |
1291 | goto finish; | |
1292 | ||
86e8cf98 | 1293 | switch (state->split_start) { |
3713b4e3 JB |
1294 | case 0: |
1295 | if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
1b8ec87a | 1296 | rdev->wiphy.retry_short) || |
3713b4e3 | 1297 | nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, |
1b8ec87a | 1298 | rdev->wiphy.retry_long) || |
3713b4e3 | 1299 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, |
1b8ec87a | 1300 | rdev->wiphy.frag_threshold) || |
3713b4e3 | 1301 | nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, |
1b8ec87a | 1302 | rdev->wiphy.rts_threshold) || |
3713b4e3 | 1303 | nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
1b8ec87a | 1304 | rdev->wiphy.coverage_class) || |
3713b4e3 | 1305 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
1b8ec87a | 1306 | rdev->wiphy.max_scan_ssids) || |
3713b4e3 | 1307 | nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, |
1b8ec87a | 1308 | rdev->wiphy.max_sched_scan_ssids) || |
3713b4e3 | 1309 | nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
1b8ec87a | 1310 | rdev->wiphy.max_scan_ie_len) || |
3713b4e3 | 1311 | nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, |
1b8ec87a | 1312 | rdev->wiphy.max_sched_scan_ie_len) || |
3713b4e3 | 1313 | nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, |
3b06d277 AS |
1314 | rdev->wiphy.max_match_sets) || |
1315 | nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS, | |
1316 | rdev->wiphy.max_sched_scan_plans) || | |
1317 | nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL, | |
1318 | rdev->wiphy.max_sched_scan_plan_interval) || | |
1319 | nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS, | |
1320 | rdev->wiphy.max_sched_scan_plan_iterations)) | |
9360ffd1 | 1321 | goto nla_put_failure; |
3713b4e3 | 1322 | |
1b8ec87a | 1323 | if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && |
3713b4e3 | 1324 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) |
aa430da4 | 1325 | goto nla_put_failure; |
1b8ec87a | 1326 | if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && |
3713b4e3 JB |
1327 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) |
1328 | goto nla_put_failure; | |
1b8ec87a | 1329 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && |
3713b4e3 JB |
1330 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) |
1331 | goto nla_put_failure; | |
1b8ec87a | 1332 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && |
3713b4e3 JB |
1333 | nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) |
1334 | goto nla_put_failure; | |
1b8ec87a | 1335 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && |
3713b4e3 JB |
1336 | nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) |
1337 | goto nla_put_failure; | |
1b8ec87a | 1338 | if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && |
3713b4e3 | 1339 | nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) |
9360ffd1 | 1340 | goto nla_put_failure; |
86e8cf98 JB |
1341 | state->split_start++; |
1342 | if (state->split) | |
3713b4e3 JB |
1343 | break; |
1344 | case 1: | |
1345 | if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, | |
1b8ec87a ZG |
1346 | sizeof(u32) * rdev->wiphy.n_cipher_suites, |
1347 | rdev->wiphy.cipher_suites)) | |
3713b4e3 | 1348 | goto nla_put_failure; |
4745fc09 | 1349 | |
3713b4e3 | 1350 | if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
1b8ec87a | 1351 | rdev->wiphy.max_num_pmkids)) |
3713b4e3 | 1352 | goto nla_put_failure; |
b23aa676 | 1353 | |
1b8ec87a | 1354 | if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && |
3713b4e3 | 1355 | nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) |
9360ffd1 | 1356 | goto nla_put_failure; |
b23aa676 | 1357 | |
3713b4e3 | 1358 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, |
1b8ec87a | 1359 | rdev->wiphy.available_antennas_tx) || |
3713b4e3 | 1360 | nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, |
1b8ec87a | 1361 | rdev->wiphy.available_antennas_rx)) |
9360ffd1 | 1362 | goto nla_put_failure; |
b23aa676 | 1363 | |
1b8ec87a | 1364 | if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && |
3713b4e3 | 1365 | nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, |
1b8ec87a | 1366 | rdev->wiphy.probe_resp_offload)) |
3713b4e3 | 1367 | goto nla_put_failure; |
8fdc621d | 1368 | |
1b8ec87a ZG |
1369 | if ((rdev->wiphy.available_antennas_tx || |
1370 | rdev->wiphy.available_antennas_rx) && | |
1371 | rdev->ops->get_antenna) { | |
3713b4e3 JB |
1372 | u32 tx_ant = 0, rx_ant = 0; |
1373 | int res; | |
1b8ec87a | 1374 | res = rdev_get_antenna(rdev, &tx_ant, &rx_ant); |
3713b4e3 JB |
1375 | if (!res) { |
1376 | if (nla_put_u32(msg, | |
1377 | NL80211_ATTR_WIPHY_ANTENNA_TX, | |
1378 | tx_ant) || | |
1379 | nla_put_u32(msg, | |
1380 | NL80211_ATTR_WIPHY_ANTENNA_RX, | |
1381 | rx_ant)) | |
1382 | goto nla_put_failure; | |
1383 | } | |
1384 | } | |
a293911d | 1385 | |
86e8cf98 JB |
1386 | state->split_start++; |
1387 | if (state->split) | |
3713b4e3 JB |
1388 | break; |
1389 | case 2: | |
1390 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, | |
1b8ec87a | 1391 | rdev->wiphy.interface_modes)) |
3713b4e3 | 1392 | goto nla_put_failure; |
86e8cf98 JB |
1393 | state->split_start++; |
1394 | if (state->split) | |
3713b4e3 JB |
1395 | break; |
1396 | case 3: | |
1397 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); | |
1398 | if (!nl_bands) | |
1399 | goto nla_put_failure; | |
f7ca38df | 1400 | |
86e8cf98 JB |
1401 | for (band = state->band_start; |
1402 | band < IEEE80211_NUM_BANDS; band++) { | |
3713b4e3 | 1403 | struct ieee80211_supported_band *sband; |
2e161f78 | 1404 | |
1b8ec87a | 1405 | sband = rdev->wiphy.bands[band]; |
2e161f78 | 1406 | |
3713b4e3 JB |
1407 | if (!sband) |
1408 | continue; | |
1409 | ||
1410 | nl_band = nla_nest_start(msg, band); | |
1411 | if (!nl_band) | |
2e161f78 | 1412 | goto nla_put_failure; |
3713b4e3 | 1413 | |
86e8cf98 | 1414 | switch (state->chan_start) { |
3713b4e3 JB |
1415 | case 0: |
1416 | if (nl80211_send_band_rateinfo(msg, sband)) | |
9360ffd1 | 1417 | goto nla_put_failure; |
86e8cf98 JB |
1418 | state->chan_start++; |
1419 | if (state->split) | |
3713b4e3 JB |
1420 | break; |
1421 | default: | |
1422 | /* add frequencies */ | |
1423 | nl_freqs = nla_nest_start( | |
1424 | msg, NL80211_BAND_ATTR_FREQS); | |
1425 | if (!nl_freqs) | |
1426 | goto nla_put_failure; | |
1427 | ||
86e8cf98 | 1428 | for (i = state->chan_start - 1; |
3713b4e3 JB |
1429 | i < sband->n_channels; |
1430 | i++) { | |
1431 | nl_freq = nla_nest_start(msg, i); | |
1432 | if (!nl_freq) | |
1433 | goto nla_put_failure; | |
1434 | ||
1435 | chan = &sband->channels[i]; | |
1436 | ||
86e8cf98 JB |
1437 | if (nl80211_msg_put_channel( |
1438 | msg, chan, | |
1439 | state->split)) | |
3713b4e3 JB |
1440 | goto nla_put_failure; |
1441 | ||
1442 | nla_nest_end(msg, nl_freq); | |
86e8cf98 | 1443 | if (state->split) |
3713b4e3 JB |
1444 | break; |
1445 | } | |
1446 | if (i < sband->n_channels) | |
86e8cf98 | 1447 | state->chan_start = i + 2; |
3713b4e3 | 1448 | else |
86e8cf98 | 1449 | state->chan_start = 0; |
3713b4e3 JB |
1450 | nla_nest_end(msg, nl_freqs); |
1451 | } | |
1452 | ||
1453 | nla_nest_end(msg, nl_band); | |
1454 | ||
86e8cf98 | 1455 | if (state->split) { |
3713b4e3 | 1456 | /* start again here */ |
86e8cf98 | 1457 | if (state->chan_start) |
3713b4e3 JB |
1458 | band--; |
1459 | break; | |
2e161f78 | 1460 | } |
2e161f78 | 1461 | } |
3713b4e3 | 1462 | nla_nest_end(msg, nl_bands); |
2e161f78 | 1463 | |
3713b4e3 | 1464 | if (band < IEEE80211_NUM_BANDS) |
86e8cf98 | 1465 | state->band_start = band + 1; |
3713b4e3 | 1466 | else |
86e8cf98 | 1467 | state->band_start = 0; |
74b70a4e | 1468 | |
3713b4e3 | 1469 | /* if bands & channels are done, continue outside */ |
86e8cf98 JB |
1470 | if (state->band_start == 0 && state->chan_start == 0) |
1471 | state->split_start++; | |
1472 | if (state->split) | |
3713b4e3 JB |
1473 | break; |
1474 | case 4: | |
1475 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); | |
1476 | if (!nl_cmds) | |
2e161f78 JB |
1477 | goto nla_put_failure; |
1478 | ||
3713b4e3 JB |
1479 | i = 0; |
1480 | #define CMD(op, n) \ | |
1481 | do { \ | |
1b8ec87a | 1482 | if (rdev->ops->op) { \ |
3713b4e3 JB |
1483 | i++; \ |
1484 | if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ | |
1485 | goto nla_put_failure; \ | |
1486 | } \ | |
1487 | } while (0) | |
1488 | ||
1489 | CMD(add_virtual_intf, NEW_INTERFACE); | |
1490 | CMD(change_virtual_intf, SET_INTERFACE); | |
1491 | CMD(add_key, NEW_KEY); | |
1492 | CMD(start_ap, START_AP); | |
1493 | CMD(add_station, NEW_STATION); | |
1494 | CMD(add_mpath, NEW_MPATH); | |
1495 | CMD(update_mesh_config, SET_MESH_CONFIG); | |
1496 | CMD(change_bss, SET_BSS); | |
1497 | CMD(auth, AUTHENTICATE); | |
1498 | CMD(assoc, ASSOCIATE); | |
1499 | CMD(deauth, DEAUTHENTICATE); | |
1500 | CMD(disassoc, DISASSOCIATE); | |
1501 | CMD(join_ibss, JOIN_IBSS); | |
1502 | CMD(join_mesh, JOIN_MESH); | |
1503 | CMD(set_pmksa, SET_PMKSA); | |
1504 | CMD(del_pmksa, DEL_PMKSA); | |
1505 | CMD(flush_pmksa, FLUSH_PMKSA); | |
1b8ec87a | 1506 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) |
3713b4e3 JB |
1507 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
1508 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); | |
1509 | CMD(mgmt_tx, FRAME); | |
1510 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); | |
1b8ec87a | 1511 | if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
3713b4e3 JB |
1512 | i++; |
1513 | if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) | |
2e161f78 | 1514 | goto nla_put_failure; |
2e161f78 | 1515 | } |
1b8ec87a ZG |
1516 | if (rdev->ops->set_monitor_channel || rdev->ops->start_ap || |
1517 | rdev->ops->join_mesh) { | |
3713b4e3 JB |
1518 | i++; |
1519 | if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) | |
1520 | goto nla_put_failure; | |
1521 | } | |
1522 | CMD(set_wds_peer, SET_WDS_PEER); | |
1b8ec87a | 1523 | if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { |
3713b4e3 JB |
1524 | CMD(tdls_mgmt, TDLS_MGMT); |
1525 | CMD(tdls_oper, TDLS_OPER); | |
1526 | } | |
1b8ec87a | 1527 | if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) |
3713b4e3 JB |
1528 | CMD(sched_scan_start, START_SCHED_SCAN); |
1529 | CMD(probe_client, PROBE_CLIENT); | |
1530 | CMD(set_noack_map, SET_NOACK_MAP); | |
1b8ec87a | 1531 | if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { |
3713b4e3 JB |
1532 | i++; |
1533 | if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) | |
1534 | goto nla_put_failure; | |
1535 | } | |
1536 | CMD(start_p2p_device, START_P2P_DEVICE); | |
1537 | CMD(set_mcast_rate, SET_MCAST_RATE); | |
02df00eb JB |
1538 | #ifdef CONFIG_NL80211_TESTMODE |
1539 | CMD(testmode_cmd, TESTMODE); | |
1540 | #endif | |
86e8cf98 | 1541 | if (state->split) { |
5de17984 AS |
1542 | CMD(crit_proto_start, CRIT_PROTOCOL_START); |
1543 | CMD(crit_proto_stop, CRIT_PROTOCOL_STOP); | |
1b8ec87a | 1544 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH) |
16ef1fe2 | 1545 | CMD(channel_switch, CHANNEL_SWITCH); |
02df00eb | 1546 | CMD(set_qos_map, SET_QOS_MAP); |
723e73ac JB |
1547 | if (rdev->wiphy.features & |
1548 | NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) | |
960d01ac | 1549 | CMD(add_tx_ts, ADD_TX_TS); |
5de17984 | 1550 | } |
02df00eb | 1551 | /* add into the if now */ |
3713b4e3 | 1552 | #undef CMD |
ff1b6e69 | 1553 | |
1b8ec87a | 1554 | if (rdev->ops->connect || rdev->ops->auth) { |
3713b4e3 JB |
1555 | i++; |
1556 | if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) | |
9360ffd1 | 1557 | goto nla_put_failure; |
ff1b6e69 JB |
1558 | } |
1559 | ||
1b8ec87a | 1560 | if (rdev->ops->disconnect || rdev->ops->deauth) { |
3713b4e3 JB |
1561 | i++; |
1562 | if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) | |
1563 | goto nla_put_failure; | |
1564 | } | |
1565 | ||
1566 | nla_nest_end(msg, nl_cmds); | |
86e8cf98 JB |
1567 | state->split_start++; |
1568 | if (state->split) | |
3713b4e3 JB |
1569 | break; |
1570 | case 5: | |
1b8ec87a ZG |
1571 | if (rdev->ops->remain_on_channel && |
1572 | (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && | |
3713b4e3 JB |
1573 | nla_put_u32(msg, |
1574 | NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, | |
1b8ec87a | 1575 | rdev->wiphy.max_remain_on_channel_duration)) |
3713b4e3 JB |
1576 | goto nla_put_failure; |
1577 | ||
1b8ec87a | 1578 | if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && |
3713b4e3 JB |
1579 | nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) |
1580 | goto nla_put_failure; | |
1581 | ||
1582 | if (nl80211_send_mgmt_stypes(msg, mgmt_stypes)) | |
1583 | goto nla_put_failure; | |
86e8cf98 JB |
1584 | state->split_start++; |
1585 | if (state->split) | |
3713b4e3 JB |
1586 | break; |
1587 | case 6: | |
1588 | #ifdef CONFIG_PM | |
1b8ec87a | 1589 | if (nl80211_send_wowlan(msg, rdev, state->split)) |
3713b4e3 | 1590 | goto nla_put_failure; |
86e8cf98 JB |
1591 | state->split_start++; |
1592 | if (state->split) | |
3713b4e3 JB |
1593 | break; |
1594 | #else | |
86e8cf98 | 1595 | state->split_start++; |
dfb89c56 | 1596 | #endif |
3713b4e3 JB |
1597 | case 7: |
1598 | if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, | |
1b8ec87a | 1599 | rdev->wiphy.software_iftypes)) |
3713b4e3 | 1600 | goto nla_put_failure; |
ff1b6e69 | 1601 | |
1b8ec87a | 1602 | if (nl80211_put_iface_combinations(&rdev->wiphy, msg, |
86e8cf98 | 1603 | state->split)) |
3713b4e3 | 1604 | goto nla_put_failure; |
7527a782 | 1605 | |
86e8cf98 JB |
1606 | state->split_start++; |
1607 | if (state->split) | |
3713b4e3 JB |
1608 | break; |
1609 | case 8: | |
1b8ec87a | 1610 | if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && |
3713b4e3 | 1611 | nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, |
1b8ec87a | 1612 | rdev->wiphy.ap_sme_capa)) |
3713b4e3 | 1613 | goto nla_put_failure; |
7527a782 | 1614 | |
1b8ec87a | 1615 | features = rdev->wiphy.features; |
fe1abafd JB |
1616 | /* |
1617 | * We can only add the per-channel limit information if the | |
1618 | * dump is split, otherwise it makes it too big. Therefore | |
1619 | * only advertise it in that case. | |
1620 | */ | |
86e8cf98 | 1621 | if (state->split) |
fe1abafd JB |
1622 | features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS; |
1623 | if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features)) | |
3713b4e3 | 1624 | goto nla_put_failure; |
562a7480 | 1625 | |
1b8ec87a | 1626 | if (rdev->wiphy.ht_capa_mod_mask && |
3713b4e3 | 1627 | nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, |
1b8ec87a ZG |
1628 | sizeof(*rdev->wiphy.ht_capa_mod_mask), |
1629 | rdev->wiphy.ht_capa_mod_mask)) | |
3713b4e3 | 1630 | goto nla_put_failure; |
1f074bd8 | 1631 | |
1b8ec87a ZG |
1632 | if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME && |
1633 | rdev->wiphy.max_acl_mac_addrs && | |
3713b4e3 | 1634 | nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX, |
1b8ec87a | 1635 | rdev->wiphy.max_acl_mac_addrs)) |
3713b4e3 | 1636 | goto nla_put_failure; |
7e7c8926 | 1637 | |
3713b4e3 JB |
1638 | /* |
1639 | * Any information below this point is only available to | |
1640 | * applications that can deal with it being split. This | |
1641 | * helps ensure that newly added capabilities don't break | |
1642 | * older tools by overrunning their buffers. | |
1643 | * | |
1644 | * We still increment split_start so that in the split | |
1645 | * case we'll continue with more data in the next round, | |
1646 | * but break unconditionally so unsplit data stops here. | |
1647 | */ | |
86e8cf98 | 1648 | state->split_start++; |
3713b4e3 JB |
1649 | break; |
1650 | case 9: | |
1b8ec87a | 1651 | if (rdev->wiphy.extended_capabilities && |
fe1abafd | 1652 | (nla_put(msg, NL80211_ATTR_EXT_CAPA, |
1b8ec87a ZG |
1653 | rdev->wiphy.extended_capabilities_len, |
1654 | rdev->wiphy.extended_capabilities) || | |
fe1abafd | 1655 | nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK, |
1b8ec87a ZG |
1656 | rdev->wiphy.extended_capabilities_len, |
1657 | rdev->wiphy.extended_capabilities_mask))) | |
fe1abafd | 1658 | goto nla_put_failure; |
a50df0c4 | 1659 | |
1b8ec87a | 1660 | if (rdev->wiphy.vht_capa_mod_mask && |
ee2aca34 | 1661 | nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, |
1b8ec87a ZG |
1662 | sizeof(*rdev->wiphy.vht_capa_mod_mask), |
1663 | rdev->wiphy.vht_capa_mod_mask)) | |
ee2aca34 JB |
1664 | goto nla_put_failure; |
1665 | ||
be29b99a AK |
1666 | state->split_start++; |
1667 | break; | |
1668 | case 10: | |
1b8ec87a | 1669 | if (nl80211_send_coalesce(msg, rdev)) |
be29b99a AK |
1670 | goto nla_put_failure; |
1671 | ||
1b8ec87a | 1672 | if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) && |
01e0daa4 FF |
1673 | (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) || |
1674 | nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ))) | |
1675 | goto nla_put_failure; | |
b43504cf | 1676 | |
1b8ec87a | 1677 | if (rdev->wiphy.max_ap_assoc_sta && |
b43504cf | 1678 | nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA, |
1b8ec87a | 1679 | rdev->wiphy.max_ap_assoc_sta)) |
b43504cf JM |
1680 | goto nla_put_failure; |
1681 | ||
ad7e718c JB |
1682 | state->split_start++; |
1683 | break; | |
1684 | case 11: | |
1b8ec87a | 1685 | if (rdev->wiphy.n_vendor_commands) { |
567ffc35 JB |
1686 | const struct nl80211_vendor_cmd_info *info; |
1687 | struct nlattr *nested; | |
1688 | ||
1689 | nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA); | |
1690 | if (!nested) | |
1691 | goto nla_put_failure; | |
1692 | ||
1b8ec87a ZG |
1693 | for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { |
1694 | info = &rdev->wiphy.vendor_commands[i].info; | |
567ffc35 JB |
1695 | if (nla_put(msg, i + 1, sizeof(*info), info)) |
1696 | goto nla_put_failure; | |
1697 | } | |
1698 | nla_nest_end(msg, nested); | |
1699 | } | |
1700 | ||
1b8ec87a | 1701 | if (rdev->wiphy.n_vendor_events) { |
567ffc35 JB |
1702 | const struct nl80211_vendor_cmd_info *info; |
1703 | struct nlattr *nested; | |
ad7e718c | 1704 | |
567ffc35 JB |
1705 | nested = nla_nest_start(msg, |
1706 | NL80211_ATTR_VENDOR_EVENTS); | |
1707 | if (!nested) | |
ad7e718c | 1708 | goto nla_put_failure; |
567ffc35 | 1709 | |
1b8ec87a ZG |
1710 | for (i = 0; i < rdev->wiphy.n_vendor_events; i++) { |
1711 | info = &rdev->wiphy.vendor_events[i]; | |
567ffc35 JB |
1712 | if (nla_put(msg, i + 1, sizeof(*info), info)) |
1713 | goto nla_put_failure; | |
1714 | } | |
1715 | nla_nest_end(msg, nested); | |
1716 | } | |
9a774c78 AO |
1717 | state->split_start++; |
1718 | break; | |
1719 | case 12: | |
1720 | if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH && | |
1721 | nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS, | |
1722 | rdev->wiphy.max_num_csa_counters)) | |
1723 | goto nla_put_failure; | |
01e0daa4 | 1724 | |
1bdd716c AN |
1725 | if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && |
1726 | nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) | |
1727 | goto nla_put_failure; | |
1728 | ||
d75bb06b GKS |
1729 | if (nla_put(msg, NL80211_ATTR_EXT_FEATURES, |
1730 | sizeof(rdev->wiphy.ext_features), | |
1731 | rdev->wiphy.ext_features)) | |
1732 | goto nla_put_failure; | |
1733 | ||
3713b4e3 | 1734 | /* done */ |
86e8cf98 | 1735 | state->split_start = 0; |
3713b4e3 JB |
1736 | break; |
1737 | } | |
3bb20556 | 1738 | finish: |
053c095a JB |
1739 | genlmsg_end(msg, hdr); |
1740 | return 0; | |
55682965 JB |
1741 | |
1742 | nla_put_failure: | |
bc3ed28c TG |
1743 | genlmsg_cancel(msg, hdr); |
1744 | return -EMSGSIZE; | |
55682965 JB |
1745 | } |
1746 | ||
86e8cf98 JB |
1747 | static int nl80211_dump_wiphy_parse(struct sk_buff *skb, |
1748 | struct netlink_callback *cb, | |
1749 | struct nl80211_dump_wiphy_state *state) | |
1750 | { | |
1751 | struct nlattr **tb = nl80211_fam.attrbuf; | |
1752 | int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1753 | tb, nl80211_fam.maxattr, nl80211_policy); | |
1754 | /* ignore parse errors for backward compatibility */ | |
1755 | if (ret) | |
1756 | return 0; | |
1757 | ||
1758 | state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP]; | |
1759 | if (tb[NL80211_ATTR_WIPHY]) | |
1760 | state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]); | |
1761 | if (tb[NL80211_ATTR_WDEV]) | |
1762 | state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32; | |
1763 | if (tb[NL80211_ATTR_IFINDEX]) { | |
1764 | struct net_device *netdev; | |
1765 | struct cfg80211_registered_device *rdev; | |
1766 | int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]); | |
1767 | ||
7f2b8562 | 1768 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
86e8cf98 JB |
1769 | if (!netdev) |
1770 | return -ENODEV; | |
1771 | if (netdev->ieee80211_ptr) { | |
f26cbf40 | 1772 | rdev = wiphy_to_rdev( |
86e8cf98 JB |
1773 | netdev->ieee80211_ptr->wiphy); |
1774 | state->filter_wiphy = rdev->wiphy_idx; | |
1775 | } | |
86e8cf98 JB |
1776 | } |
1777 | ||
1778 | return 0; | |
1779 | } | |
1780 | ||
55682965 JB |
1781 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) |
1782 | { | |
645e77de | 1783 | int idx = 0, ret; |
86e8cf98 | 1784 | struct nl80211_dump_wiphy_state *state = (void *)cb->args[0]; |
1b8ec87a | 1785 | struct cfg80211_registered_device *rdev; |
3a5a423b | 1786 | |
5fe231e8 | 1787 | rtnl_lock(); |
86e8cf98 JB |
1788 | if (!state) { |
1789 | state = kzalloc(sizeof(*state), GFP_KERNEL); | |
57ed5cd6 JL |
1790 | if (!state) { |
1791 | rtnl_unlock(); | |
86e8cf98 | 1792 | return -ENOMEM; |
3713b4e3 | 1793 | } |
86e8cf98 JB |
1794 | state->filter_wiphy = -1; |
1795 | ret = nl80211_dump_wiphy_parse(skb, cb, state); | |
1796 | if (ret) { | |
1797 | kfree(state); | |
1798 | rtnl_unlock(); | |
1799 | return ret; | |
3713b4e3 | 1800 | } |
86e8cf98 | 1801 | cb->args[0] = (long)state; |
3713b4e3 JB |
1802 | } |
1803 | ||
1b8ec87a ZG |
1804 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1805 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1806 | continue; |
86e8cf98 | 1807 | if (++idx <= state->start) |
55682965 | 1808 | continue; |
86e8cf98 | 1809 | if (state->filter_wiphy != -1 && |
1b8ec87a | 1810 | state->filter_wiphy != rdev->wiphy_idx) |
3713b4e3 JB |
1811 | continue; |
1812 | /* attempt to fit multiple wiphy data chunks into the skb */ | |
1813 | do { | |
3bb20556 JB |
1814 | ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, |
1815 | skb, | |
3713b4e3 JB |
1816 | NETLINK_CB(cb->skb).portid, |
1817 | cb->nlh->nlmsg_seq, | |
86e8cf98 | 1818 | NLM_F_MULTI, state); |
3713b4e3 JB |
1819 | if (ret < 0) { |
1820 | /* | |
1821 | * If sending the wiphy data didn't fit (ENOBUFS | |
1822 | * or EMSGSIZE returned), this SKB is still | |
1823 | * empty (so it's not too big because another | |
1824 | * wiphy dataset is already in the skb) and | |
1825 | * we've not tried to adjust the dump allocation | |
1826 | * yet ... then adjust the alloc size to be | |
1827 | * bigger, and return 1 but with the empty skb. | |
1828 | * This results in an empty message being RX'ed | |
1829 | * in userspace, but that is ignored. | |
1830 | * | |
1831 | * We can then retry with the larger buffer. | |
1832 | */ | |
1833 | if ((ret == -ENOBUFS || ret == -EMSGSIZE) && | |
f12cb289 | 1834 | !skb->len && !state->split && |
3713b4e3 JB |
1835 | cb->min_dump_alloc < 4096) { |
1836 | cb->min_dump_alloc = 4096; | |
f12cb289 | 1837 | state->split_start = 0; |
d98cae64 | 1838 | rtnl_unlock(); |
3713b4e3 JB |
1839 | return 1; |
1840 | } | |
1841 | idx--; | |
1842 | break; | |
645e77de | 1843 | } |
86e8cf98 | 1844 | } while (state->split_start > 0); |
3713b4e3 | 1845 | break; |
55682965 | 1846 | } |
5fe231e8 | 1847 | rtnl_unlock(); |
55682965 | 1848 | |
86e8cf98 | 1849 | state->start = idx; |
55682965 JB |
1850 | |
1851 | return skb->len; | |
1852 | } | |
1853 | ||
86e8cf98 JB |
1854 | static int nl80211_dump_wiphy_done(struct netlink_callback *cb) |
1855 | { | |
1856 | kfree((void *)cb->args[0]); | |
1857 | return 0; | |
1858 | } | |
1859 | ||
55682965 JB |
1860 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) |
1861 | { | |
1862 | struct sk_buff *msg; | |
1b8ec87a | 1863 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
86e8cf98 | 1864 | struct nl80211_dump_wiphy_state state = {}; |
55682965 | 1865 | |
645e77de | 1866 | msg = nlmsg_new(4096, GFP_KERNEL); |
55682965 | 1867 | if (!msg) |
4c476991 | 1868 | return -ENOMEM; |
55682965 | 1869 | |
3bb20556 JB |
1870 | if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg, |
1871 | info->snd_portid, info->snd_seq, 0, | |
86e8cf98 | 1872 | &state) < 0) { |
4c476991 JB |
1873 | nlmsg_free(msg); |
1874 | return -ENOBUFS; | |
1875 | } | |
55682965 | 1876 | |
134e6375 | 1877 | return genlmsg_reply(msg, info); |
55682965 JB |
1878 | } |
1879 | ||
31888487 JM |
1880 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
1881 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
1882 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
1883 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
1884 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
1885 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
1886 | }; | |
1887 | ||
1888 | static int parse_txq_params(struct nlattr *tb[], | |
1889 | struct ieee80211_txq_params *txq_params) | |
1890 | { | |
a3304b0a | 1891 | if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] || |
31888487 JM |
1892 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || |
1893 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
1894 | return -EINVAL; | |
1895 | ||
a3304b0a | 1896 | txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]); |
31888487 JM |
1897 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); |
1898 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
1899 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
1900 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
1901 | ||
a3304b0a JB |
1902 | if (txq_params->ac >= NL80211_NUM_ACS) |
1903 | return -EINVAL; | |
1904 | ||
31888487 JM |
1905 | return 0; |
1906 | } | |
1907 | ||
f444de05 JB |
1908 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
1909 | { | |
1910 | /* | |
cc1d2806 JB |
1911 | * You can only set the channel explicitly for WDS interfaces, |
1912 | * all others have their channel managed via their respective | |
1913 | * "establish a connection" command (connect, join, ...) | |
1914 | * | |
1915 | * For AP/GO and mesh mode, the channel can be set with the | |
1916 | * channel userspace API, but is only stored and passed to the | |
1917 | * low-level driver when the AP starts or the mesh is joined. | |
1918 | * This is for backward compatibility, userspace can also give | |
1919 | * the channel in the start-ap or join-mesh commands instead. | |
f444de05 JB |
1920 | * |
1921 | * Monitors are special as they are normally slaved to | |
e8c9bd5b JB |
1922 | * whatever else is going on, so they have their own special |
1923 | * operation to set the monitor channel if possible. | |
f444de05 JB |
1924 | */ |
1925 | return !wdev || | |
1926 | wdev->iftype == NL80211_IFTYPE_AP || | |
f444de05 | 1927 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || |
074ac8df JB |
1928 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
1929 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
1930 | } |
1931 | ||
683b6d3b JB |
1932 | static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, |
1933 | struct genl_info *info, | |
1934 | struct cfg80211_chan_def *chandef) | |
1935 | { | |
dbeca2ea | 1936 | u32 control_freq; |
683b6d3b JB |
1937 | |
1938 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
1939 | return -EINVAL; | |
1940 | ||
1941 | control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
1942 | ||
1943 | chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq); | |
3d9d1d66 JB |
1944 | chandef->width = NL80211_CHAN_WIDTH_20_NOHT; |
1945 | chandef->center_freq1 = control_freq; | |
1946 | chandef->center_freq2 = 0; | |
683b6d3b JB |
1947 | |
1948 | /* Primary channel not allowed */ | |
1949 | if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED) | |
1950 | return -EINVAL; | |
1951 | ||
3d9d1d66 JB |
1952 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
1953 | enum nl80211_channel_type chantype; | |
1954 | ||
1955 | chantype = nla_get_u32( | |
1956 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
1957 | ||
1958 | switch (chantype) { | |
1959 | case NL80211_CHAN_NO_HT: | |
1960 | case NL80211_CHAN_HT20: | |
1961 | case NL80211_CHAN_HT40PLUS: | |
1962 | case NL80211_CHAN_HT40MINUS: | |
1963 | cfg80211_chandef_create(chandef, chandef->chan, | |
1964 | chantype); | |
1965 | break; | |
1966 | default: | |
1967 | return -EINVAL; | |
1968 | } | |
1969 | } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) { | |
1970 | chandef->width = | |
1971 | nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]); | |
1972 | if (info->attrs[NL80211_ATTR_CENTER_FREQ1]) | |
1973 | chandef->center_freq1 = | |
1974 | nla_get_u32( | |
1975 | info->attrs[NL80211_ATTR_CENTER_FREQ1]); | |
1976 | if (info->attrs[NL80211_ATTR_CENTER_FREQ2]) | |
1977 | chandef->center_freq2 = | |
1978 | nla_get_u32( | |
1979 | info->attrs[NL80211_ATTR_CENTER_FREQ2]); | |
1980 | } | |
1981 | ||
9f5e8f6e | 1982 | if (!cfg80211_chandef_valid(chandef)) |
3d9d1d66 JB |
1983 | return -EINVAL; |
1984 | ||
9f5e8f6e JB |
1985 | if (!cfg80211_chandef_usable(&rdev->wiphy, chandef, |
1986 | IEEE80211_CHAN_DISABLED)) | |
3d9d1d66 JB |
1987 | return -EINVAL; |
1988 | ||
2f301ab2 SW |
1989 | if ((chandef->width == NL80211_CHAN_WIDTH_5 || |
1990 | chandef->width == NL80211_CHAN_WIDTH_10) && | |
1991 | !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ)) | |
1992 | return -EINVAL; | |
1993 | ||
683b6d3b JB |
1994 | return 0; |
1995 | } | |
1996 | ||
f444de05 | 1997 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, |
e16821bc | 1998 | struct net_device *dev, |
f444de05 JB |
1999 | struct genl_info *info) |
2000 | { | |
683b6d3b | 2001 | struct cfg80211_chan_def chandef; |
f444de05 | 2002 | int result; |
e8c9bd5b | 2003 | enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; |
e16821bc | 2004 | struct wireless_dev *wdev = NULL; |
e8c9bd5b | 2005 | |
e16821bc JM |
2006 | if (dev) |
2007 | wdev = dev->ieee80211_ptr; | |
f444de05 JB |
2008 | if (!nl80211_can_set_dev_channel(wdev)) |
2009 | return -EOPNOTSUPP; | |
e16821bc JM |
2010 | if (wdev) |
2011 | iftype = wdev->iftype; | |
f444de05 | 2012 | |
683b6d3b JB |
2013 | result = nl80211_parse_chandef(rdev, info, &chandef); |
2014 | if (result) | |
2015 | return result; | |
f444de05 | 2016 | |
e8c9bd5b | 2017 | switch (iftype) { |
aa430da4 JB |
2018 | case NL80211_IFTYPE_AP: |
2019 | case NL80211_IFTYPE_P2P_GO: | |
923b352f AN |
2020 | if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef, |
2021 | iftype)) { | |
aa430da4 JB |
2022 | result = -EINVAL; |
2023 | break; | |
2024 | } | |
e16821bc JM |
2025 | if (wdev->beacon_interval) { |
2026 | if (!dev || !rdev->ops->set_ap_chanwidth || | |
2027 | !(rdev->wiphy.features & | |
2028 | NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) { | |
2029 | result = -EBUSY; | |
2030 | break; | |
2031 | } | |
2032 | ||
2033 | /* Only allow dynamic channel width changes */ | |
2034 | if (chandef.chan != wdev->preset_chandef.chan) { | |
2035 | result = -EBUSY; | |
2036 | break; | |
2037 | } | |
2038 | result = rdev_set_ap_chanwidth(rdev, dev, &chandef); | |
2039 | if (result) | |
2040 | break; | |
2041 | } | |
683b6d3b | 2042 | wdev->preset_chandef = chandef; |
aa430da4 JB |
2043 | result = 0; |
2044 | break; | |
cc1d2806 | 2045 | case NL80211_IFTYPE_MESH_POINT: |
683b6d3b | 2046 | result = cfg80211_set_mesh_channel(rdev, wdev, &chandef); |
cc1d2806 | 2047 | break; |
e8c9bd5b | 2048 | case NL80211_IFTYPE_MONITOR: |
683b6d3b | 2049 | result = cfg80211_set_monitor_channel(rdev, &chandef); |
e8c9bd5b | 2050 | break; |
aa430da4 | 2051 | default: |
e8c9bd5b | 2052 | result = -EINVAL; |
f444de05 | 2053 | } |
f444de05 JB |
2054 | |
2055 | return result; | |
2056 | } | |
2057 | ||
2058 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
2059 | { | |
4c476991 JB |
2060 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2061 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 2062 | |
e16821bc | 2063 | return __nl80211_set_channel(rdev, netdev, info); |
f444de05 JB |
2064 | } |
2065 | ||
e8347eba BJ |
2066 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
2067 | { | |
43b19952 JB |
2068 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2069 | struct net_device *dev = info->user_ptr[1]; | |
2070 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
388ac775 | 2071 | const u8 *bssid; |
e8347eba BJ |
2072 | |
2073 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2074 | return -EINVAL; | |
2075 | ||
43b19952 JB |
2076 | if (netif_running(dev)) |
2077 | return -EBUSY; | |
e8347eba | 2078 | |
43b19952 JB |
2079 | if (!rdev->ops->set_wds_peer) |
2080 | return -EOPNOTSUPP; | |
e8347eba | 2081 | |
43b19952 JB |
2082 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
2083 | return -EOPNOTSUPP; | |
e8347eba BJ |
2084 | |
2085 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
e35e4d28 | 2086 | return rdev_set_wds_peer(rdev, dev, bssid); |
e8347eba BJ |
2087 | } |
2088 | ||
2089 | ||
55682965 JB |
2090 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
2091 | { | |
2092 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
2093 | struct net_device *netdev = NULL; |
2094 | struct wireless_dev *wdev; | |
a1e567c8 | 2095 | int result = 0, rem_txq_params = 0; |
31888487 | 2096 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
2097 | u32 changed; |
2098 | u8 retry_short = 0, retry_long = 0; | |
2099 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 2100 | u8 coverage_class = 0; |
55682965 | 2101 | |
5fe231e8 JB |
2102 | ASSERT_RTNL(); |
2103 | ||
f444de05 JB |
2104 | /* |
2105 | * Try to find the wiphy and netdev. Normally this | |
2106 | * function shouldn't need the netdev, but this is | |
2107 | * done for backward compatibility -- previously | |
2108 | * setting the channel was done per wiphy, but now | |
2109 | * it is per netdev. Previous userland like hostapd | |
2110 | * also passed a netdev to set_wiphy, so that it is | |
2111 | * possible to let that go to the right netdev! | |
2112 | */ | |
4bbf4d56 | 2113 | |
f444de05 JB |
2114 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
2115 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
2116 | ||
7f2b8562 | 2117 | netdev = __dev_get_by_index(genl_info_net(info), ifindex); |
5fe231e8 | 2118 | if (netdev && netdev->ieee80211_ptr) |
f26cbf40 | 2119 | rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy); |
5fe231e8 | 2120 | else |
f444de05 | 2121 | netdev = NULL; |
4bbf4d56 JB |
2122 | } |
2123 | ||
f444de05 | 2124 | if (!netdev) { |
878d9ec7 JB |
2125 | rdev = __cfg80211_rdev_from_attrs(genl_info_net(info), |
2126 | info->attrs); | |
5fe231e8 | 2127 | if (IS_ERR(rdev)) |
4c476991 | 2128 | return PTR_ERR(rdev); |
f444de05 JB |
2129 | wdev = NULL; |
2130 | netdev = NULL; | |
2131 | result = 0; | |
71fe96bf | 2132 | } else |
f444de05 | 2133 | wdev = netdev->ieee80211_ptr; |
f444de05 JB |
2134 | |
2135 | /* | |
2136 | * end workaround code, by now the rdev is available | |
2137 | * and locked, and wdev may or may not be NULL. | |
2138 | */ | |
4bbf4d56 JB |
2139 | |
2140 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
2141 | result = cfg80211_dev_rename( |
2142 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 | 2143 | |
4bbf4d56 | 2144 | if (result) |
7f2b8562 | 2145 | return result; |
31888487 JM |
2146 | |
2147 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
2148 | struct ieee80211_txq_params txq_params; | |
2149 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
2150 | ||
7f2b8562 YX |
2151 | if (!rdev->ops->set_txq_params) |
2152 | return -EOPNOTSUPP; | |
31888487 | 2153 | |
7f2b8562 YX |
2154 | if (!netdev) |
2155 | return -EINVAL; | |
f70f01c2 | 2156 | |
133a3ff2 | 2157 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
7f2b8562 YX |
2158 | netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2159 | return -EINVAL; | |
133a3ff2 | 2160 | |
7f2b8562 YX |
2161 | if (!netif_running(netdev)) |
2162 | return -ENETDOWN; | |
2b5f8b0b | 2163 | |
31888487 JM |
2164 | nla_for_each_nested(nl_txq_params, |
2165 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
2166 | rem_txq_params) { | |
ae811e21 JB |
2167 | result = nla_parse(tb, NL80211_TXQ_ATTR_MAX, |
2168 | nla_data(nl_txq_params), | |
2169 | nla_len(nl_txq_params), | |
2170 | txq_params_policy); | |
2171 | if (result) | |
2172 | return result; | |
31888487 JM |
2173 | result = parse_txq_params(tb, &txq_params); |
2174 | if (result) | |
7f2b8562 | 2175 | return result; |
31888487 | 2176 | |
e35e4d28 HG |
2177 | result = rdev_set_txq_params(rdev, netdev, |
2178 | &txq_params); | |
31888487 | 2179 | if (result) |
7f2b8562 | 2180 | return result; |
31888487 JM |
2181 | } |
2182 | } | |
55682965 | 2183 | |
72bdcf34 | 2184 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
e16821bc JM |
2185 | result = __nl80211_set_channel( |
2186 | rdev, | |
2187 | nl80211_can_set_dev_channel(wdev) ? netdev : NULL, | |
2188 | info); | |
72bdcf34 | 2189 | if (result) |
7f2b8562 | 2190 | return result; |
72bdcf34 JM |
2191 | } |
2192 | ||
98d2ff8b | 2193 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
c8442118 | 2194 | struct wireless_dev *txp_wdev = wdev; |
98d2ff8b JO |
2195 | enum nl80211_tx_power_setting type; |
2196 | int idx, mbm = 0; | |
2197 | ||
c8442118 JB |
2198 | if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER)) |
2199 | txp_wdev = NULL; | |
2200 | ||
7f2b8562 YX |
2201 | if (!rdev->ops->set_tx_power) |
2202 | return -EOPNOTSUPP; | |
98d2ff8b JO |
2203 | |
2204 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
2205 | type = nla_get_u32(info->attrs[idx]); | |
2206 | ||
2207 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
7f2b8562 YX |
2208 | (type != NL80211_TX_POWER_AUTOMATIC)) |
2209 | return -EINVAL; | |
98d2ff8b JO |
2210 | |
2211 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
2212 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
2213 | mbm = nla_get_u32(info->attrs[idx]); | |
2214 | } | |
2215 | ||
c8442118 | 2216 | result = rdev_set_tx_power(rdev, txp_wdev, type, mbm); |
98d2ff8b | 2217 | if (result) |
7f2b8562 | 2218 | return result; |
98d2ff8b JO |
2219 | } |
2220 | ||
afe0cbf8 BR |
2221 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
2222 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
2223 | u32 tx_ant, rx_ant; | |
7f531e03 BR |
2224 | if ((!rdev->wiphy.available_antennas_tx && |
2225 | !rdev->wiphy.available_antennas_rx) || | |
7f2b8562 YX |
2226 | !rdev->ops->set_antenna) |
2227 | return -EOPNOTSUPP; | |
afe0cbf8 BR |
2228 | |
2229 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
2230 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
2231 | ||
a7ffac95 | 2232 | /* reject antenna configurations which don't match the |
7f531e03 BR |
2233 | * available antenna masks, except for the "all" mask */ |
2234 | if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) || | |
7f2b8562 YX |
2235 | (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) |
2236 | return -EINVAL; | |
a7ffac95 | 2237 | |
7f531e03 BR |
2238 | tx_ant = tx_ant & rdev->wiphy.available_antennas_tx; |
2239 | rx_ant = rx_ant & rdev->wiphy.available_antennas_rx; | |
a7ffac95 | 2240 | |
e35e4d28 | 2241 | result = rdev_set_antenna(rdev, tx_ant, rx_ant); |
afe0cbf8 | 2242 | if (result) |
7f2b8562 | 2243 | return result; |
afe0cbf8 BR |
2244 | } |
2245 | ||
b9a5f8ca JM |
2246 | changed = 0; |
2247 | ||
2248 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
2249 | retry_short = nla_get_u8( | |
2250 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
7f2b8562 YX |
2251 | if (retry_short == 0) |
2252 | return -EINVAL; | |
2253 | ||
b9a5f8ca JM |
2254 | changed |= WIPHY_PARAM_RETRY_SHORT; |
2255 | } | |
2256 | ||
2257 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
2258 | retry_long = nla_get_u8( | |
2259 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
7f2b8562 YX |
2260 | if (retry_long == 0) |
2261 | return -EINVAL; | |
2262 | ||
b9a5f8ca JM |
2263 | changed |= WIPHY_PARAM_RETRY_LONG; |
2264 | } | |
2265 | ||
2266 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
2267 | frag_threshold = nla_get_u32( | |
2268 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
7f2b8562 YX |
2269 | if (frag_threshold < 256) |
2270 | return -EINVAL; | |
2271 | ||
b9a5f8ca JM |
2272 | if (frag_threshold != (u32) -1) { |
2273 | /* | |
2274 | * Fragments (apart from the last one) are required to | |
2275 | * have even length. Make the fragmentation code | |
2276 | * simpler by stripping LSB should someone try to use | |
2277 | * odd threshold value. | |
2278 | */ | |
2279 | frag_threshold &= ~0x1; | |
2280 | } | |
2281 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
2282 | } | |
2283 | ||
2284 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
2285 | rts_threshold = nla_get_u32( | |
2286 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
2287 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
2288 | } | |
2289 | ||
81077e82 | 2290 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
3057dbfd LB |
2291 | if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) |
2292 | return -EINVAL; | |
2293 | ||
81077e82 LT |
2294 | coverage_class = nla_get_u8( |
2295 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
2296 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
2297 | } | |
2298 | ||
3057dbfd LB |
2299 | if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) { |
2300 | if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION)) | |
2301 | return -EOPNOTSUPP; | |
2302 | ||
2303 | changed |= WIPHY_PARAM_DYN_ACK; | |
81077e82 LT |
2304 | } |
2305 | ||
b9a5f8ca JM |
2306 | if (changed) { |
2307 | u8 old_retry_short, old_retry_long; | |
2308 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 2309 | u8 old_coverage_class; |
b9a5f8ca | 2310 | |
7f2b8562 YX |
2311 | if (!rdev->ops->set_wiphy_params) |
2312 | return -EOPNOTSUPP; | |
b9a5f8ca JM |
2313 | |
2314 | old_retry_short = rdev->wiphy.retry_short; | |
2315 | old_retry_long = rdev->wiphy.retry_long; | |
2316 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
2317 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 2318 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
2319 | |
2320 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
2321 | rdev->wiphy.retry_short = retry_short; | |
2322 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
2323 | rdev->wiphy.retry_long = retry_long; | |
2324 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
2325 | rdev->wiphy.frag_threshold = frag_threshold; | |
2326 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
2327 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
2328 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
2329 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca | 2330 | |
e35e4d28 | 2331 | result = rdev_set_wiphy_params(rdev, changed); |
b9a5f8ca JM |
2332 | if (result) { |
2333 | rdev->wiphy.retry_short = old_retry_short; | |
2334 | rdev->wiphy.retry_long = old_retry_long; | |
2335 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
2336 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 2337 | rdev->wiphy.coverage_class = old_coverage_class; |
9189ee31 | 2338 | return result; |
b9a5f8ca JM |
2339 | } |
2340 | } | |
7f2b8562 | 2341 | return 0; |
55682965 JB |
2342 | } |
2343 | ||
71bbc994 JB |
2344 | static inline u64 wdev_id(struct wireless_dev *wdev) |
2345 | { | |
2346 | return (u64)wdev->identifier | | |
f26cbf40 | 2347 | ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32); |
71bbc994 | 2348 | } |
55682965 | 2349 | |
683b6d3b | 2350 | static int nl80211_send_chandef(struct sk_buff *msg, |
d2859df5 | 2351 | const struct cfg80211_chan_def *chandef) |
683b6d3b | 2352 | { |
601555cd JB |
2353 | if (WARN_ON(!cfg80211_chandef_valid(chandef))) |
2354 | return -EINVAL; | |
3d9d1d66 | 2355 | |
683b6d3b JB |
2356 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, |
2357 | chandef->chan->center_freq)) | |
2358 | return -ENOBUFS; | |
3d9d1d66 JB |
2359 | switch (chandef->width) { |
2360 | case NL80211_CHAN_WIDTH_20_NOHT: | |
2361 | case NL80211_CHAN_WIDTH_20: | |
2362 | case NL80211_CHAN_WIDTH_40: | |
2363 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, | |
2364 | cfg80211_get_chandef_type(chandef))) | |
2365 | return -ENOBUFS; | |
2366 | break; | |
2367 | default: | |
2368 | break; | |
2369 | } | |
2370 | if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width)) | |
2371 | return -ENOBUFS; | |
2372 | if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1)) | |
2373 | return -ENOBUFS; | |
2374 | if (chandef->center_freq2 && | |
2375 | nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2)) | |
683b6d3b JB |
2376 | return -ENOBUFS; |
2377 | return 0; | |
2378 | } | |
2379 | ||
15e47304 | 2380 | static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, |
d726405a | 2381 | struct cfg80211_registered_device *rdev, |
8f894be2 | 2382 | struct wireless_dev *wdev, bool removal) |
55682965 | 2383 | { |
72fb2abc | 2384 | struct net_device *dev = wdev->netdev; |
8f894be2 | 2385 | u8 cmd = NL80211_CMD_NEW_INTERFACE; |
55682965 JB |
2386 | void *hdr; |
2387 | ||
8f894be2 TB |
2388 | if (removal) |
2389 | cmd = NL80211_CMD_DEL_INTERFACE; | |
2390 | ||
2391 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); | |
55682965 JB |
2392 | if (!hdr) |
2393 | return -1; | |
2394 | ||
72fb2abc JB |
2395 | if (dev && |
2396 | (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
98104fde | 2397 | nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name))) |
72fb2abc JB |
2398 | goto nla_put_failure; |
2399 | ||
2400 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
2401 | nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) || | |
71bbc994 | 2402 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
98104fde | 2403 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) || |
9360ffd1 DM |
2404 | nla_put_u32(msg, NL80211_ATTR_GENERATION, |
2405 | rdev->devlist_generation ^ | |
2406 | (cfg80211_rdev_list_generation << 2))) | |
2407 | goto nla_put_failure; | |
f5ea9120 | 2408 | |
5b7ccaf3 | 2409 | if (rdev->ops->get_channel) { |
683b6d3b JB |
2410 | int ret; |
2411 | struct cfg80211_chan_def chandef; | |
2412 | ||
2413 | ret = rdev_get_channel(rdev, wdev, &chandef); | |
2414 | if (ret == 0) { | |
2415 | if (nl80211_send_chandef(msg, &chandef)) | |
2416 | goto nla_put_failure; | |
2417 | } | |
d91df0e3 PF |
2418 | } |
2419 | ||
d55d0d59 RM |
2420 | if (rdev->ops->get_tx_power) { |
2421 | int dbm, ret; | |
2422 | ||
2423 | ret = rdev_get_tx_power(rdev, wdev, &dbm); | |
2424 | if (ret == 0 && | |
2425 | nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL, | |
2426 | DBM_TO_MBM(dbm))) | |
2427 | goto nla_put_failure; | |
2428 | } | |
2429 | ||
b84e7a05 AQ |
2430 | if (wdev->ssid_len) { |
2431 | if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid)) | |
2432 | goto nla_put_failure; | |
2433 | } | |
2434 | ||
053c095a JB |
2435 | genlmsg_end(msg, hdr); |
2436 | return 0; | |
55682965 JB |
2437 | |
2438 | nla_put_failure: | |
bc3ed28c TG |
2439 | genlmsg_cancel(msg, hdr); |
2440 | return -EMSGSIZE; | |
55682965 JB |
2441 | } |
2442 | ||
2443 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
2444 | { | |
2445 | int wp_idx = 0; | |
2446 | int if_idx = 0; | |
2447 | int wp_start = cb->args[0]; | |
2448 | int if_start = cb->args[1]; | |
f5ea9120 | 2449 | struct cfg80211_registered_device *rdev; |
55682965 JB |
2450 | struct wireless_dev *wdev; |
2451 | ||
5fe231e8 | 2452 | rtnl_lock(); |
f5ea9120 JB |
2453 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
2454 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 2455 | continue; |
bba95fef JB |
2456 | if (wp_idx < wp_start) { |
2457 | wp_idx++; | |
55682965 | 2458 | continue; |
bba95fef | 2459 | } |
55682965 JB |
2460 | if_idx = 0; |
2461 | ||
89a54e48 | 2462 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
bba95fef JB |
2463 | if (if_idx < if_start) { |
2464 | if_idx++; | |
55682965 | 2465 | continue; |
bba95fef | 2466 | } |
15e47304 | 2467 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, |
55682965 | 2468 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
8f894be2 | 2469 | rdev, wdev, false) < 0) { |
bba95fef JB |
2470 | goto out; |
2471 | } | |
2472 | if_idx++; | |
55682965 | 2473 | } |
bba95fef JB |
2474 | |
2475 | wp_idx++; | |
55682965 | 2476 | } |
bba95fef | 2477 | out: |
5fe231e8 | 2478 | rtnl_unlock(); |
55682965 JB |
2479 | |
2480 | cb->args[0] = wp_idx; | |
2481 | cb->args[1] = if_idx; | |
2482 | ||
2483 | return skb->len; | |
2484 | } | |
2485 | ||
2486 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
2487 | { | |
2488 | struct sk_buff *msg; | |
1b8ec87a | 2489 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
72fb2abc | 2490 | struct wireless_dev *wdev = info->user_ptr[1]; |
55682965 | 2491 | |
fd2120ca | 2492 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 2493 | if (!msg) |
4c476991 | 2494 | return -ENOMEM; |
55682965 | 2495 | |
15e47304 | 2496 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
8f894be2 | 2497 | rdev, wdev, false) < 0) { |
4c476991 JB |
2498 | nlmsg_free(msg); |
2499 | return -ENOBUFS; | |
2500 | } | |
55682965 | 2501 | |
134e6375 | 2502 | return genlmsg_reply(msg, info); |
55682965 JB |
2503 | } |
2504 | ||
66f7ac50 MW |
2505 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
2506 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
2507 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
2508 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
2509 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
2510 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
e057d3c3 | 2511 | [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG }, |
66f7ac50 MW |
2512 | }; |
2513 | ||
2514 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
2515 | { | |
2516 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
2517 | int flag; | |
2518 | ||
2519 | *mntrflags = 0; | |
2520 | ||
2521 | if (!nla) | |
2522 | return -EINVAL; | |
2523 | ||
2524 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
2525 | nla, mntr_flags_policy)) | |
2526 | return -EINVAL; | |
2527 | ||
2528 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
2529 | if (flags[flag]) | |
2530 | *mntrflags |= (1<<flag); | |
2531 | ||
2532 | return 0; | |
2533 | } | |
2534 | ||
9bc383de | 2535 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
2536 | struct net_device *netdev, u8 use_4addr, |
2537 | enum nl80211_iftype iftype) | |
9bc383de | 2538 | { |
ad4bb6f8 | 2539 | if (!use_4addr) { |
f350a0a8 | 2540 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 2541 | return -EBUSY; |
9bc383de | 2542 | return 0; |
ad4bb6f8 | 2543 | } |
9bc383de JB |
2544 | |
2545 | switch (iftype) { | |
2546 | case NL80211_IFTYPE_AP_VLAN: | |
2547 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
2548 | return 0; | |
2549 | break; | |
2550 | case NL80211_IFTYPE_STATION: | |
2551 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
2552 | return 0; | |
2553 | break; | |
2554 | default: | |
2555 | break; | |
2556 | } | |
2557 | ||
2558 | return -EOPNOTSUPP; | |
2559 | } | |
2560 | ||
55682965 JB |
2561 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
2562 | { | |
4c476991 | 2563 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2564 | struct vif_params params; |
e36d56b6 | 2565 | int err; |
04a773ad | 2566 | enum nl80211_iftype otype, ntype; |
4c476991 | 2567 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 2568 | u32 _flags, *flags = NULL; |
ac7f9cfa | 2569 | bool change = false; |
55682965 | 2570 | |
2ec600d6 LCC |
2571 | memset(¶ms, 0, sizeof(params)); |
2572 | ||
04a773ad | 2573 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 2574 | |
723b038d | 2575 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 2576 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 2577 | if (otype != ntype) |
ac7f9cfa | 2578 | change = true; |
4c476991 JB |
2579 | if (ntype > NL80211_IFTYPE_MAX) |
2580 | return -EINVAL; | |
723b038d JB |
2581 | } |
2582 | ||
92ffe055 | 2583 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
29cbe68c JB |
2584 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
2585 | ||
4c476991 JB |
2586 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
2587 | return -EINVAL; | |
29cbe68c JB |
2588 | if (netif_running(dev)) |
2589 | return -EBUSY; | |
2590 | ||
2591 | wdev_lock(wdev); | |
2592 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2593 | IEEE80211_MAX_MESH_ID_LEN); | |
2594 | wdev->mesh_id_up_len = | |
2595 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2596 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2597 | wdev->mesh_id_up_len); | |
2598 | wdev_unlock(wdev); | |
2ec600d6 LCC |
2599 | } |
2600 | ||
8b787643 FF |
2601 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
2602 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
2603 | change = true; | |
ad4bb6f8 | 2604 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 2605 | if (err) |
4c476991 | 2606 | return err; |
8b787643 FF |
2607 | } else { |
2608 | params.use_4addr = -1; | |
2609 | } | |
2610 | ||
92ffe055 | 2611 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
2612 | if (ntype != NL80211_IFTYPE_MONITOR) |
2613 | return -EINVAL; | |
92ffe055 JB |
2614 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
2615 | &_flags); | |
ac7f9cfa | 2616 | if (err) |
4c476991 | 2617 | return err; |
ac7f9cfa JB |
2618 | |
2619 | flags = &_flags; | |
2620 | change = true; | |
92ffe055 | 2621 | } |
3b85875a | 2622 | |
18003297 | 2623 | if (flags && (*flags & MONITOR_FLAG_ACTIVE) && |
e057d3c3 FF |
2624 | !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) |
2625 | return -EOPNOTSUPP; | |
2626 | ||
ac7f9cfa | 2627 | if (change) |
3d54d255 | 2628 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
2629 | else |
2630 | err = 0; | |
60719ffd | 2631 | |
9bc383de JB |
2632 | if (!err && params.use_4addr != -1) |
2633 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
2634 | ||
55682965 JB |
2635 | return err; |
2636 | } | |
2637 | ||
2638 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
2639 | { | |
4c476991 | 2640 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2641 | struct vif_params params; |
84efbb84 | 2642 | struct wireless_dev *wdev; |
8f894be2 | 2643 | struct sk_buff *msg, *event; |
55682965 JB |
2644 | int err; |
2645 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 2646 | u32 flags; |
55682965 | 2647 | |
78f22b6a JB |
2648 | /* to avoid failing a new interface creation due to pending removal */ |
2649 | cfg80211_destroy_ifaces(rdev); | |
2650 | ||
2ec600d6 LCC |
2651 | memset(¶ms, 0, sizeof(params)); |
2652 | ||
55682965 JB |
2653 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
2654 | return -EINVAL; | |
2655 | ||
2656 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
2657 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
2658 | if (type > NL80211_IFTYPE_MAX) | |
2659 | return -EINVAL; | |
2660 | } | |
2661 | ||
79c97e97 | 2662 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
2663 | !(rdev->wiphy.interface_modes & (1 << type))) |
2664 | return -EOPNOTSUPP; | |
55682965 | 2665 | |
e8f479b1 BG |
2666 | if ((type == NL80211_IFTYPE_P2P_DEVICE || |
2667 | rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) && | |
2668 | info->attrs[NL80211_ATTR_MAC]) { | |
1c18f145 AS |
2669 | nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC], |
2670 | ETH_ALEN); | |
2671 | if (!is_valid_ether_addr(params.macaddr)) | |
2672 | return -EADDRNOTAVAIL; | |
2673 | } | |
2674 | ||
9bc383de | 2675 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 2676 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 2677 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 2678 | if (err) |
4c476991 | 2679 | return err; |
9bc383de | 2680 | } |
8b787643 | 2681 | |
66f7ac50 MW |
2682 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
2683 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
2684 | &flags); | |
e057d3c3 | 2685 | |
18003297 | 2686 | if (!err && (flags & MONITOR_FLAG_ACTIVE) && |
e057d3c3 FF |
2687 | !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR)) |
2688 | return -EOPNOTSUPP; | |
2689 | ||
a18c7192 JB |
2690 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2691 | if (!msg) | |
2692 | return -ENOMEM; | |
2693 | ||
e35e4d28 HG |
2694 | wdev = rdev_add_virtual_intf(rdev, |
2695 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), | |
6bab2e19 TG |
2696 | NET_NAME_USER, type, err ? NULL : &flags, |
2697 | ¶ms); | |
d687cbb7 RM |
2698 | if (WARN_ON(!wdev)) { |
2699 | nlmsg_free(msg); | |
2700 | return -EPROTO; | |
2701 | } else if (IS_ERR(wdev)) { | |
1c90f9d4 | 2702 | nlmsg_free(msg); |
84efbb84 | 2703 | return PTR_ERR(wdev); |
1c90f9d4 | 2704 | } |
2ec600d6 | 2705 | |
18e5ca65 | 2706 | if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) |
78f22b6a JB |
2707 | wdev->owner_nlportid = info->snd_portid; |
2708 | ||
98104fde JB |
2709 | switch (type) { |
2710 | case NL80211_IFTYPE_MESH_POINT: | |
2711 | if (!info->attrs[NL80211_ATTR_MESH_ID]) | |
2712 | break; | |
29cbe68c JB |
2713 | wdev_lock(wdev); |
2714 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
2715 | IEEE80211_MAX_MESH_ID_LEN); | |
2716 | wdev->mesh_id_up_len = | |
2717 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
2718 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
2719 | wdev->mesh_id_up_len); | |
2720 | wdev_unlock(wdev); | |
98104fde JB |
2721 | break; |
2722 | case NL80211_IFTYPE_P2P_DEVICE: | |
2723 | /* | |
2724 | * P2P Device doesn't have a netdev, so doesn't go | |
2725 | * through the netdev notifier and must be added here | |
2726 | */ | |
2727 | mutex_init(&wdev->mtx); | |
2728 | INIT_LIST_HEAD(&wdev->event_list); | |
2729 | spin_lock_init(&wdev->event_lock); | |
2730 | INIT_LIST_HEAD(&wdev->mgmt_registrations); | |
2731 | spin_lock_init(&wdev->mgmt_registrations_lock); | |
2732 | ||
98104fde JB |
2733 | wdev->identifier = ++rdev->wdev_id; |
2734 | list_add_rcu(&wdev->list, &rdev->wdev_list); | |
2735 | rdev->devlist_generation++; | |
98104fde JB |
2736 | break; |
2737 | default: | |
2738 | break; | |
29cbe68c JB |
2739 | } |
2740 | ||
15e47304 | 2741 | if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, |
8f894be2 | 2742 | rdev, wdev, false) < 0) { |
1c90f9d4 JB |
2743 | nlmsg_free(msg); |
2744 | return -ENOBUFS; | |
2745 | } | |
2746 | ||
8f894be2 TB |
2747 | event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2748 | if (event) { | |
2749 | if (nl80211_send_iface(event, 0, 0, 0, | |
2750 | rdev, wdev, false) < 0) { | |
2751 | nlmsg_free(event); | |
2752 | goto out; | |
2753 | } | |
2754 | ||
2755 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), | |
2756 | event, 0, NL80211_MCGRP_CONFIG, | |
2757 | GFP_KERNEL); | |
2758 | } | |
2759 | ||
2760 | out: | |
1c90f9d4 | 2761 | return genlmsg_reply(msg, info); |
55682965 JB |
2762 | } |
2763 | ||
2764 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
2765 | { | |
4c476991 | 2766 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
84efbb84 | 2767 | struct wireless_dev *wdev = info->user_ptr[1]; |
8f894be2 TB |
2768 | struct sk_buff *msg; |
2769 | int status; | |
55682965 | 2770 | |
4c476991 JB |
2771 | if (!rdev->ops->del_virtual_intf) |
2772 | return -EOPNOTSUPP; | |
55682965 | 2773 | |
8f894be2 TB |
2774 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2775 | if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) { | |
2776 | nlmsg_free(msg); | |
2777 | msg = NULL; | |
2778 | } | |
2779 | ||
84efbb84 JB |
2780 | /* |
2781 | * If we remove a wireless device without a netdev then clear | |
2782 | * user_ptr[1] so that nl80211_post_doit won't dereference it | |
2783 | * to check if it needs to do dev_put(). Otherwise it crashes | |
2784 | * since the wdev has been freed, unlike with a netdev where | |
2785 | * we need the dev_put() for the netdev to really be freed. | |
2786 | */ | |
2787 | if (!wdev->netdev) | |
2788 | info->user_ptr[1] = NULL; | |
2789 | ||
8f894be2 TB |
2790 | status = rdev_del_virtual_intf(rdev, wdev); |
2791 | if (status >= 0 && msg) | |
2792 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), | |
2793 | msg, 0, NL80211_MCGRP_CONFIG, | |
2794 | GFP_KERNEL); | |
2795 | else | |
2796 | nlmsg_free(msg); | |
2797 | ||
2798 | return status; | |
55682965 JB |
2799 | } |
2800 | ||
1d9d9213 SW |
2801 | static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) |
2802 | { | |
2803 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2804 | struct net_device *dev = info->user_ptr[1]; | |
2805 | u16 noack_map; | |
2806 | ||
2807 | if (!info->attrs[NL80211_ATTR_NOACK_MAP]) | |
2808 | return -EINVAL; | |
2809 | ||
2810 | if (!rdev->ops->set_noack_map) | |
2811 | return -EOPNOTSUPP; | |
2812 | ||
2813 | noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]); | |
2814 | ||
e35e4d28 | 2815 | return rdev_set_noack_map(rdev, dev, noack_map); |
1d9d9213 SW |
2816 | } |
2817 | ||
41ade00f JB |
2818 | struct get_key_cookie { |
2819 | struct sk_buff *msg; | |
2820 | int error; | |
b9454e83 | 2821 | int idx; |
41ade00f JB |
2822 | }; |
2823 | ||
2824 | static void get_key_callback(void *c, struct key_params *params) | |
2825 | { | |
b9454e83 | 2826 | struct nlattr *key; |
41ade00f JB |
2827 | struct get_key_cookie *cookie = c; |
2828 | ||
9360ffd1 DM |
2829 | if ((params->key && |
2830 | nla_put(cookie->msg, NL80211_ATTR_KEY_DATA, | |
2831 | params->key_len, params->key)) || | |
2832 | (params->seq && | |
2833 | nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
2834 | params->seq_len, params->seq)) || | |
2835 | (params->cipher && | |
2836 | nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
2837 | params->cipher))) | |
2838 | goto nla_put_failure; | |
41ade00f | 2839 | |
b9454e83 JB |
2840 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
2841 | if (!key) | |
2842 | goto nla_put_failure; | |
2843 | ||
9360ffd1 DM |
2844 | if ((params->key && |
2845 | nla_put(cookie->msg, NL80211_KEY_DATA, | |
2846 | params->key_len, params->key)) || | |
2847 | (params->seq && | |
2848 | nla_put(cookie->msg, NL80211_KEY_SEQ, | |
2849 | params->seq_len, params->seq)) || | |
2850 | (params->cipher && | |
2851 | nla_put_u32(cookie->msg, NL80211_KEY_CIPHER, | |
2852 | params->cipher))) | |
2853 | goto nla_put_failure; | |
b9454e83 | 2854 | |
9360ffd1 DM |
2855 | if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx)) |
2856 | goto nla_put_failure; | |
b9454e83 JB |
2857 | |
2858 | nla_nest_end(cookie->msg, key); | |
2859 | ||
41ade00f JB |
2860 | return; |
2861 | nla_put_failure: | |
2862 | cookie->error = 1; | |
2863 | } | |
2864 | ||
2865 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
2866 | { | |
4c476991 | 2867 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 2868 | int err; |
4c476991 | 2869 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2870 | u8 key_idx = 0; |
e31b8213 JB |
2871 | const u8 *mac_addr = NULL; |
2872 | bool pairwise; | |
41ade00f JB |
2873 | struct get_key_cookie cookie = { |
2874 | .error = 0, | |
2875 | }; | |
2876 | void *hdr; | |
2877 | struct sk_buff *msg; | |
2878 | ||
2879 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
2880 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
2881 | ||
3cfcf6ac | 2882 | if (key_idx > 5) |
41ade00f JB |
2883 | return -EINVAL; |
2884 | ||
2885 | if (info->attrs[NL80211_ATTR_MAC]) | |
2886 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2887 | ||
e31b8213 JB |
2888 | pairwise = !!mac_addr; |
2889 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
2890 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
2891 | if (kt >= NUM_NL80211_KEYTYPES) | |
2892 | return -EINVAL; | |
2893 | if (kt != NL80211_KEYTYPE_GROUP && | |
2894 | kt != NL80211_KEYTYPE_PAIRWISE) | |
2895 | return -EINVAL; | |
2896 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
2897 | } | |
2898 | ||
4c476991 JB |
2899 | if (!rdev->ops->get_key) |
2900 | return -EOPNOTSUPP; | |
41ade00f | 2901 | |
0fa7b391 JB |
2902 | if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) |
2903 | return -ENOENT; | |
2904 | ||
fd2120ca | 2905 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
2906 | if (!msg) |
2907 | return -ENOMEM; | |
41ade00f | 2908 | |
15e47304 | 2909 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
41ade00f | 2910 | NL80211_CMD_NEW_KEY); |
cb35fba3 | 2911 | if (!hdr) |
9fe271af | 2912 | goto nla_put_failure; |
41ade00f JB |
2913 | |
2914 | cookie.msg = msg; | |
b9454e83 | 2915 | cookie.idx = key_idx; |
41ade00f | 2916 | |
9360ffd1 DM |
2917 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
2918 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx)) | |
2919 | goto nla_put_failure; | |
2920 | if (mac_addr && | |
2921 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr)) | |
2922 | goto nla_put_failure; | |
41ade00f | 2923 | |
e35e4d28 HG |
2924 | err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie, |
2925 | get_key_callback); | |
41ade00f JB |
2926 | |
2927 | if (err) | |
6c95e2a2 | 2928 | goto free_msg; |
41ade00f JB |
2929 | |
2930 | if (cookie.error) | |
2931 | goto nla_put_failure; | |
2932 | ||
2933 | genlmsg_end(msg, hdr); | |
4c476991 | 2934 | return genlmsg_reply(msg, info); |
41ade00f JB |
2935 | |
2936 | nla_put_failure: | |
2937 | err = -ENOBUFS; | |
6c95e2a2 | 2938 | free_msg: |
41ade00f | 2939 | nlmsg_free(msg); |
41ade00f JB |
2940 | return err; |
2941 | } | |
2942 | ||
2943 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
2944 | { | |
4c476991 | 2945 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 2946 | struct key_parse key; |
41ade00f | 2947 | int err; |
4c476991 | 2948 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 2949 | |
b9454e83 JB |
2950 | err = nl80211_parse_key(info, &key); |
2951 | if (err) | |
2952 | return err; | |
41ade00f | 2953 | |
b9454e83 | 2954 | if (key.idx < 0) |
41ade00f JB |
2955 | return -EINVAL; |
2956 | ||
b9454e83 JB |
2957 | /* only support setting default key */ |
2958 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
2959 | return -EINVAL; |
2960 | ||
dbd2fd65 | 2961 | wdev_lock(dev->ieee80211_ptr); |
3cfcf6ac | 2962 | |
dbd2fd65 JB |
2963 | if (key.def) { |
2964 | if (!rdev->ops->set_default_key) { | |
2965 | err = -EOPNOTSUPP; | |
2966 | goto out; | |
2967 | } | |
41ade00f | 2968 | |
dbd2fd65 JB |
2969 | err = nl80211_key_allowed(dev->ieee80211_ptr); |
2970 | if (err) | |
2971 | goto out; | |
2972 | ||
e35e4d28 | 2973 | err = rdev_set_default_key(rdev, dev, key.idx, |
dbd2fd65 JB |
2974 | key.def_uni, key.def_multi); |
2975 | ||
2976 | if (err) | |
2977 | goto out; | |
fffd0934 | 2978 | |
3d23e349 | 2979 | #ifdef CONFIG_CFG80211_WEXT |
dbd2fd65 JB |
2980 | dev->ieee80211_ptr->wext.default_key = key.idx; |
2981 | #endif | |
2982 | } else { | |
2983 | if (key.def_uni || !key.def_multi) { | |
2984 | err = -EINVAL; | |
2985 | goto out; | |
2986 | } | |
2987 | ||
2988 | if (!rdev->ops->set_default_mgmt_key) { | |
2989 | err = -EOPNOTSUPP; | |
2990 | goto out; | |
2991 | } | |
2992 | ||
2993 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
2994 | if (err) | |
2995 | goto out; | |
2996 | ||
e35e4d28 | 2997 | err = rdev_set_default_mgmt_key(rdev, dev, key.idx); |
dbd2fd65 JB |
2998 | if (err) |
2999 | goto out; | |
3000 | ||
3001 | #ifdef CONFIG_CFG80211_WEXT | |
3002 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; | |
08645126 | 3003 | #endif |
dbd2fd65 JB |
3004 | } |
3005 | ||
3006 | out: | |
fffd0934 | 3007 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 3008 | |
41ade00f JB |
3009 | return err; |
3010 | } | |
3011 | ||
3012 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
3013 | { | |
4c476991 | 3014 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 3015 | int err; |
4c476991 | 3016 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 3017 | struct key_parse key; |
e31b8213 | 3018 | const u8 *mac_addr = NULL; |
41ade00f | 3019 | |
b9454e83 JB |
3020 | err = nl80211_parse_key(info, &key); |
3021 | if (err) | |
3022 | return err; | |
41ade00f | 3023 | |
b9454e83 | 3024 | if (!key.p.key) |
41ade00f JB |
3025 | return -EINVAL; |
3026 | ||
41ade00f JB |
3027 | if (info->attrs[NL80211_ATTR_MAC]) |
3028 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3029 | ||
e31b8213 JB |
3030 | if (key.type == -1) { |
3031 | if (mac_addr) | |
3032 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
3033 | else | |
3034 | key.type = NL80211_KEYTYPE_GROUP; | |
3035 | } | |
3036 | ||
3037 | /* for now */ | |
3038 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
3039 | key.type != NL80211_KEYTYPE_GROUP) | |
3040 | return -EINVAL; | |
3041 | ||
4c476991 JB |
3042 | if (!rdev->ops->add_key) |
3043 | return -EOPNOTSUPP; | |
25e47c18 | 3044 | |
e31b8213 JB |
3045 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
3046 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
3047 | mac_addr)) | |
4c476991 | 3048 | return -EINVAL; |
41ade00f | 3049 | |
fffd0934 JB |
3050 | wdev_lock(dev->ieee80211_ptr); |
3051 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
3052 | if (!err) | |
e35e4d28 HG |
3053 | err = rdev_add_key(rdev, dev, key.idx, |
3054 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
3055 | mac_addr, &key.p); | |
fffd0934 | 3056 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 3057 | |
41ade00f JB |
3058 | return err; |
3059 | } | |
3060 | ||
3061 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
3062 | { | |
4c476991 | 3063 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 3064 | int err; |
4c476991 | 3065 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 3066 | u8 *mac_addr = NULL; |
b9454e83 | 3067 | struct key_parse key; |
41ade00f | 3068 | |
b9454e83 JB |
3069 | err = nl80211_parse_key(info, &key); |
3070 | if (err) | |
3071 | return err; | |
41ade00f JB |
3072 | |
3073 | if (info->attrs[NL80211_ATTR_MAC]) | |
3074 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3075 | ||
e31b8213 JB |
3076 | if (key.type == -1) { |
3077 | if (mac_addr) | |
3078 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
3079 | else | |
3080 | key.type = NL80211_KEYTYPE_GROUP; | |
3081 | } | |
3082 | ||
3083 | /* for now */ | |
3084 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
3085 | key.type != NL80211_KEYTYPE_GROUP) | |
3086 | return -EINVAL; | |
3087 | ||
4c476991 JB |
3088 | if (!rdev->ops->del_key) |
3089 | return -EOPNOTSUPP; | |
41ade00f | 3090 | |
fffd0934 JB |
3091 | wdev_lock(dev->ieee80211_ptr); |
3092 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 | 3093 | |
0fa7b391 | 3094 | if (key.type == NL80211_KEYTYPE_GROUP && mac_addr && |
e31b8213 JB |
3095 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) |
3096 | err = -ENOENT; | |
3097 | ||
fffd0934 | 3098 | if (!err) |
e35e4d28 HG |
3099 | err = rdev_del_key(rdev, dev, key.idx, |
3100 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
3101 | mac_addr); | |
41ade00f | 3102 | |
3d23e349 | 3103 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 3104 | if (!err) { |
b9454e83 | 3105 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 3106 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 3107 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
3108 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
3109 | } | |
3110 | #endif | |
fffd0934 | 3111 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 3112 | |
41ade00f JB |
3113 | return err; |
3114 | } | |
3115 | ||
77765eaf VT |
3116 | /* This function returns an error or the number of nested attributes */ |
3117 | static int validate_acl_mac_addrs(struct nlattr *nl_attr) | |
3118 | { | |
3119 | struct nlattr *attr; | |
3120 | int n_entries = 0, tmp; | |
3121 | ||
3122 | nla_for_each_nested(attr, nl_attr, tmp) { | |
3123 | if (nla_len(attr) != ETH_ALEN) | |
3124 | return -EINVAL; | |
3125 | ||
3126 | n_entries++; | |
3127 | } | |
3128 | ||
3129 | return n_entries; | |
3130 | } | |
3131 | ||
3132 | /* | |
3133 | * This function parses ACL information and allocates memory for ACL data. | |
3134 | * On successful return, the calling function is responsible to free the | |
3135 | * ACL buffer returned by this function. | |
3136 | */ | |
3137 | static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy, | |
3138 | struct genl_info *info) | |
3139 | { | |
3140 | enum nl80211_acl_policy acl_policy; | |
3141 | struct nlattr *attr; | |
3142 | struct cfg80211_acl_data *acl; | |
3143 | int i = 0, n_entries, tmp; | |
3144 | ||
3145 | if (!wiphy->max_acl_mac_addrs) | |
3146 | return ERR_PTR(-EOPNOTSUPP); | |
3147 | ||
3148 | if (!info->attrs[NL80211_ATTR_ACL_POLICY]) | |
3149 | return ERR_PTR(-EINVAL); | |
3150 | ||
3151 | acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]); | |
3152 | if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED && | |
3153 | acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED) | |
3154 | return ERR_PTR(-EINVAL); | |
3155 | ||
3156 | if (!info->attrs[NL80211_ATTR_MAC_ADDRS]) | |
3157 | return ERR_PTR(-EINVAL); | |
3158 | ||
3159 | n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]); | |
3160 | if (n_entries < 0) | |
3161 | return ERR_PTR(n_entries); | |
3162 | ||
3163 | if (n_entries > wiphy->max_acl_mac_addrs) | |
3164 | return ERR_PTR(-ENOTSUPP); | |
3165 | ||
3166 | acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries), | |
3167 | GFP_KERNEL); | |
3168 | if (!acl) | |
3169 | return ERR_PTR(-ENOMEM); | |
3170 | ||
3171 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) { | |
3172 | memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN); | |
3173 | i++; | |
3174 | } | |
3175 | ||
3176 | acl->n_acl_entries = n_entries; | |
3177 | acl->acl_policy = acl_policy; | |
3178 | ||
3179 | return acl; | |
3180 | } | |
3181 | ||
3182 | static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info) | |
3183 | { | |
3184 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3185 | struct net_device *dev = info->user_ptr[1]; | |
3186 | struct cfg80211_acl_data *acl; | |
3187 | int err; | |
3188 | ||
3189 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3190 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3191 | return -EOPNOTSUPP; | |
3192 | ||
3193 | if (!dev->ieee80211_ptr->beacon_interval) | |
3194 | return -EINVAL; | |
3195 | ||
3196 | acl = parse_acl_data(&rdev->wiphy, info); | |
3197 | if (IS_ERR(acl)) | |
3198 | return PTR_ERR(acl); | |
3199 | ||
3200 | err = rdev_set_mac_acl(rdev, dev, acl); | |
3201 | ||
3202 | kfree(acl); | |
3203 | ||
3204 | return err; | |
3205 | } | |
3206 | ||
a1193be8 | 3207 | static int nl80211_parse_beacon(struct nlattr *attrs[], |
8860020e | 3208 | struct cfg80211_beacon_data *bcn) |
ed1b6cc7 | 3209 | { |
8860020e | 3210 | bool haveinfo = false; |
ed1b6cc7 | 3211 | |
a1193be8 SW |
3212 | if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) || |
3213 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) || | |
3214 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) || | |
3215 | !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP])) | |
f4a11bb0 JB |
3216 | return -EINVAL; |
3217 | ||
8860020e | 3218 | memset(bcn, 0, sizeof(*bcn)); |
ed1b6cc7 | 3219 | |
a1193be8 SW |
3220 | if (attrs[NL80211_ATTR_BEACON_HEAD]) { |
3221 | bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]); | |
3222 | bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]); | |
8860020e JB |
3223 | if (!bcn->head_len) |
3224 | return -EINVAL; | |
3225 | haveinfo = true; | |
ed1b6cc7 JB |
3226 | } |
3227 | ||
a1193be8 SW |
3228 | if (attrs[NL80211_ATTR_BEACON_TAIL]) { |
3229 | bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]); | |
3230 | bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]); | |
8860020e | 3231 | haveinfo = true; |
ed1b6cc7 JB |
3232 | } |
3233 | ||
4c476991 JB |
3234 | if (!haveinfo) |
3235 | return -EINVAL; | |
3b85875a | 3236 | |
a1193be8 SW |
3237 | if (attrs[NL80211_ATTR_IE]) { |
3238 | bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]); | |
3239 | bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]); | |
9946ecfb JM |
3240 | } |
3241 | ||
a1193be8 | 3242 | if (attrs[NL80211_ATTR_IE_PROBE_RESP]) { |
8860020e | 3243 | bcn->proberesp_ies = |
a1193be8 | 3244 | nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]); |
8860020e | 3245 | bcn->proberesp_ies_len = |
a1193be8 | 3246 | nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]); |
9946ecfb JM |
3247 | } |
3248 | ||
a1193be8 | 3249 | if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) { |
8860020e | 3250 | bcn->assocresp_ies = |
a1193be8 | 3251 | nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
8860020e | 3252 | bcn->assocresp_ies_len = |
a1193be8 | 3253 | nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]); |
9946ecfb JM |
3254 | } |
3255 | ||
a1193be8 SW |
3256 | if (attrs[NL80211_ATTR_PROBE_RESP]) { |
3257 | bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]); | |
3258 | bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]); | |
00f740e1 AN |
3259 | } |
3260 | ||
8860020e JB |
3261 | return 0; |
3262 | } | |
3263 | ||
46c1dd0c FF |
3264 | static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev, |
3265 | struct cfg80211_ap_settings *params) | |
3266 | { | |
3267 | struct wireless_dev *wdev; | |
3268 | bool ret = false; | |
3269 | ||
89a54e48 | 3270 | list_for_each_entry(wdev, &rdev->wdev_list, list) { |
46c1dd0c FF |
3271 | if (wdev->iftype != NL80211_IFTYPE_AP && |
3272 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
3273 | continue; | |
3274 | ||
683b6d3b | 3275 | if (!wdev->preset_chandef.chan) |
46c1dd0c FF |
3276 | continue; |
3277 | ||
683b6d3b | 3278 | params->chandef = wdev->preset_chandef; |
46c1dd0c FF |
3279 | ret = true; |
3280 | break; | |
3281 | } | |
3282 | ||
46c1dd0c FF |
3283 | return ret; |
3284 | } | |
3285 | ||
e39e5b5e JM |
3286 | static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev, |
3287 | enum nl80211_auth_type auth_type, | |
3288 | enum nl80211_commands cmd) | |
3289 | { | |
3290 | if (auth_type > NL80211_AUTHTYPE_MAX) | |
3291 | return false; | |
3292 | ||
3293 | switch (cmd) { | |
3294 | case NL80211_CMD_AUTHENTICATE: | |
3295 | if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) && | |
3296 | auth_type == NL80211_AUTHTYPE_SAE) | |
3297 | return false; | |
3298 | return true; | |
3299 | case NL80211_CMD_CONNECT: | |
3300 | case NL80211_CMD_START_AP: | |
3301 | /* SAE not supported yet */ | |
3302 | if (auth_type == NL80211_AUTHTYPE_SAE) | |
3303 | return false; | |
3304 | return true; | |
3305 | default: | |
3306 | return false; | |
3307 | } | |
3308 | } | |
3309 | ||
8860020e JB |
3310 | static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) |
3311 | { | |
3312 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3313 | struct net_device *dev = info->user_ptr[1]; | |
3314 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
3315 | struct cfg80211_ap_settings params; | |
3316 | int err; | |
3317 | ||
3318 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3319 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3320 | return -EOPNOTSUPP; | |
3321 | ||
3322 | if (!rdev->ops->start_ap) | |
3323 | return -EOPNOTSUPP; | |
3324 | ||
3325 | if (wdev->beacon_interval) | |
3326 | return -EALREADY; | |
3327 | ||
3328 | memset(¶ms, 0, sizeof(params)); | |
3329 | ||
3330 | /* these are required for START_AP */ | |
3331 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
3332 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
3333 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) | |
3334 | return -EINVAL; | |
3335 | ||
a1193be8 | 3336 | err = nl80211_parse_beacon(info->attrs, ¶ms.beacon); |
8860020e JB |
3337 | if (err) |
3338 | return err; | |
3339 | ||
3340 | params.beacon_interval = | |
3341 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3342 | params.dtim_period = | |
3343 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
3344 | ||
3345 | err = cfg80211_validate_beacon_int(rdev, params.beacon_interval); | |
3346 | if (err) | |
3347 | return err; | |
3348 | ||
3349 | /* | |
3350 | * In theory, some of these attributes should be required here | |
3351 | * but since they were not used when the command was originally | |
3352 | * added, keep them optional for old user space programs to let | |
3353 | * them continue to work with drivers that do not need the | |
3354 | * additional information -- drivers must check! | |
3355 | */ | |
3356 | if (info->attrs[NL80211_ATTR_SSID]) { | |
3357 | params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3358 | params.ssid_len = | |
3359 | nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3360 | if (params.ssid_len == 0 || | |
3361 | params.ssid_len > IEEE80211_MAX_SSID_LEN) | |
3362 | return -EINVAL; | |
3363 | } | |
3364 | ||
3365 | if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) { | |
3366 | params.hidden_ssid = nla_get_u32( | |
3367 | info->attrs[NL80211_ATTR_HIDDEN_SSID]); | |
3368 | if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE && | |
3369 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN && | |
3370 | params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS) | |
3371 | return -EINVAL; | |
3372 | } | |
3373 | ||
3374 | params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; | |
3375 | ||
3376 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
3377 | params.auth_type = nla_get_u32( | |
3378 | info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
3379 | if (!nl80211_valid_auth_type(rdev, params.auth_type, |
3380 | NL80211_CMD_START_AP)) | |
8860020e JB |
3381 | return -EINVAL; |
3382 | } else | |
3383 | params.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
3384 | ||
3385 | err = nl80211_crypto_settings(rdev, info, ¶ms.crypto, | |
3386 | NL80211_MAX_NR_CIPHER_SUITES); | |
3387 | if (err) | |
3388 | return err; | |
3389 | ||
1b658f11 VT |
3390 | if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) { |
3391 | if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER)) | |
3392 | return -EOPNOTSUPP; | |
3393 | params.inactivity_timeout = nla_get_u16( | |
3394 | info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); | |
3395 | } | |
3396 | ||
53cabad7 JB |
3397 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
3398 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3399 | return -EINVAL; | |
3400 | params.p2p_ctwindow = | |
3401 | nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); | |
3402 | if (params.p2p_ctwindow > 127) | |
3403 | return -EINVAL; | |
3404 | if (params.p2p_ctwindow != 0 && | |
3405 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) | |
3406 | return -EINVAL; | |
3407 | } | |
3408 | ||
3409 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { | |
3410 | u8 tmp; | |
3411 | ||
3412 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3413 | return -EINVAL; | |
3414 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); | |
3415 | if (tmp > 1) | |
3416 | return -EINVAL; | |
3417 | params.p2p_opp_ps = tmp; | |
3418 | if (params.p2p_opp_ps != 0 && | |
3419 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) | |
3420 | return -EINVAL; | |
3421 | } | |
3422 | ||
aa430da4 | 3423 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
683b6d3b JB |
3424 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); |
3425 | if (err) | |
3426 | return err; | |
3427 | } else if (wdev->preset_chandef.chan) { | |
3428 | params.chandef = wdev->preset_chandef; | |
46c1dd0c | 3429 | } else if (!nl80211_get_ap_channel(rdev, ¶ms)) |
aa430da4 JB |
3430 | return -EINVAL; |
3431 | ||
923b352f AN |
3432 | if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef, |
3433 | wdev->iftype)) | |
aa430da4 JB |
3434 | return -EINVAL; |
3435 | ||
18998c38 EP |
3436 | if (info->attrs[NL80211_ATTR_SMPS_MODE]) { |
3437 | params.smps_mode = | |
3438 | nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]); | |
3439 | switch (params.smps_mode) { | |
3440 | case NL80211_SMPS_OFF: | |
3441 | break; | |
3442 | case NL80211_SMPS_STATIC: | |
3443 | if (!(rdev->wiphy.features & | |
3444 | NL80211_FEATURE_STATIC_SMPS)) | |
3445 | return -EINVAL; | |
3446 | break; | |
3447 | case NL80211_SMPS_DYNAMIC: | |
3448 | if (!(rdev->wiphy.features & | |
3449 | NL80211_FEATURE_DYNAMIC_SMPS)) | |
3450 | return -EINVAL; | |
3451 | break; | |
3452 | default: | |
3453 | return -EINVAL; | |
3454 | } | |
3455 | } else { | |
3456 | params.smps_mode = NL80211_SMPS_OFF; | |
3457 | } | |
3458 | ||
4baf6bea OO |
3459 | if (info->attrs[NL80211_ATTR_ACL_POLICY]) { |
3460 | params.acl = parse_acl_data(&rdev->wiphy, info); | |
3461 | if (IS_ERR(params.acl)) | |
3462 | return PTR_ERR(params.acl); | |
3463 | } | |
3464 | ||
34d50519 LD |
3465 | params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]); |
3466 | if (params.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ]) | |
3467 | return -EOPNOTSUPP; | |
3468 | ||
c56589ed | 3469 | wdev_lock(wdev); |
e35e4d28 | 3470 | err = rdev_start_ap(rdev, dev, ¶ms); |
46c1dd0c | 3471 | if (!err) { |
683b6d3b | 3472 | wdev->preset_chandef = params.chandef; |
8860020e | 3473 | wdev->beacon_interval = params.beacon_interval; |
9e0e2961 | 3474 | wdev->chandef = params.chandef; |
06e191e2 AQ |
3475 | wdev->ssid_len = params.ssid_len; |
3476 | memcpy(wdev->ssid, params.ssid, wdev->ssid_len); | |
46c1dd0c | 3477 | } |
c56589ed | 3478 | wdev_unlock(wdev); |
77765eaf VT |
3479 | |
3480 | kfree(params.acl); | |
3481 | ||
56d1893d | 3482 | return err; |
ed1b6cc7 JB |
3483 | } |
3484 | ||
8860020e JB |
3485 | static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info) |
3486 | { | |
3487 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
3488 | struct net_device *dev = info->user_ptr[1]; | |
3489 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
3490 | struct cfg80211_beacon_data params; | |
3491 | int err; | |
3492 | ||
3493 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
3494 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
3495 | return -EOPNOTSUPP; | |
3496 | ||
3497 | if (!rdev->ops->change_beacon) | |
3498 | return -EOPNOTSUPP; | |
3499 | ||
3500 | if (!wdev->beacon_interval) | |
3501 | return -EINVAL; | |
3502 | ||
a1193be8 | 3503 | err = nl80211_parse_beacon(info->attrs, ¶ms); |
8860020e JB |
3504 | if (err) |
3505 | return err; | |
3506 | ||
c56589ed SW |
3507 | wdev_lock(wdev); |
3508 | err = rdev_change_beacon(rdev, dev, ¶ms); | |
3509 | wdev_unlock(wdev); | |
3510 | ||
3511 | return err; | |
8860020e JB |
3512 | } |
3513 | ||
3514 | static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info) | |
ed1b6cc7 | 3515 | { |
4c476991 JB |
3516 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3517 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 | 3518 | |
7c8d5e03 | 3519 | return cfg80211_stop_ap(rdev, dev, false); |
ed1b6cc7 JB |
3520 | } |
3521 | ||
5727ef1b JB |
3522 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
3523 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
3524 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
3525 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 3526 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
b39c48fa | 3527 | [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG }, |
d83023da | 3528 | [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG }, |
5727ef1b JB |
3529 | }; |
3530 | ||
eccb8e8f | 3531 | static int parse_station_flags(struct genl_info *info, |
bdd3ae3d | 3532 | enum nl80211_iftype iftype, |
eccb8e8f | 3533 | struct station_parameters *params) |
5727ef1b JB |
3534 | { |
3535 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 3536 | struct nlattr *nla; |
5727ef1b JB |
3537 | int flag; |
3538 | ||
eccb8e8f JB |
3539 | /* |
3540 | * Try parsing the new attribute first so userspace | |
3541 | * can specify both for older kernels. | |
3542 | */ | |
3543 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
3544 | if (nla) { | |
3545 | struct nl80211_sta_flag_update *sta_flags; | |
3546 | ||
3547 | sta_flags = nla_data(nla); | |
3548 | params->sta_flags_mask = sta_flags->mask; | |
3549 | params->sta_flags_set = sta_flags->set; | |
77ee7c89 | 3550 | params->sta_flags_set &= params->sta_flags_mask; |
eccb8e8f JB |
3551 | if ((params->sta_flags_mask | |
3552 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
3553 | return -EINVAL; | |
3554 | return 0; | |
3555 | } | |
3556 | ||
3557 | /* if present, parse the old attribute */ | |
5727ef1b | 3558 | |
eccb8e8f | 3559 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
3560 | if (!nla) |
3561 | return 0; | |
3562 | ||
3563 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
3564 | nla, sta_flags_policy)) | |
3565 | return -EINVAL; | |
3566 | ||
bdd3ae3d JB |
3567 | /* |
3568 | * Only allow certain flags for interface types so that | |
3569 | * other attributes are silently ignored. Remember that | |
3570 | * this is backward compatibility code with old userspace | |
3571 | * and shouldn't be hit in other cases anyway. | |
3572 | */ | |
3573 | switch (iftype) { | |
3574 | case NL80211_IFTYPE_AP: | |
3575 | case NL80211_IFTYPE_AP_VLAN: | |
3576 | case NL80211_IFTYPE_P2P_GO: | |
3577 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3578 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
3579 | BIT(NL80211_STA_FLAG_WME) | | |
3580 | BIT(NL80211_STA_FLAG_MFP); | |
3581 | break; | |
3582 | case NL80211_IFTYPE_P2P_CLIENT: | |
3583 | case NL80211_IFTYPE_STATION: | |
3584 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
3585 | BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3586 | break; | |
3587 | case NL80211_IFTYPE_MESH_POINT: | |
3588 | params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3589 | BIT(NL80211_STA_FLAG_MFP) | | |
3590 | BIT(NL80211_STA_FLAG_AUTHORIZED); | |
3591 | default: | |
3592 | return -EINVAL; | |
3593 | } | |
5727ef1b | 3594 | |
3383b5a6 JB |
3595 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) { |
3596 | if (flags[flag]) { | |
eccb8e8f | 3597 | params->sta_flags_set |= (1<<flag); |
5727ef1b | 3598 | |
3383b5a6 JB |
3599 | /* no longer support new API additions in old API */ |
3600 | if (flag > NL80211_STA_FLAG_MAX_OLD_API) | |
3601 | return -EINVAL; | |
3602 | } | |
3603 | } | |
3604 | ||
5727ef1b JB |
3605 | return 0; |
3606 | } | |
3607 | ||
c8dcfd8a FF |
3608 | static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info, |
3609 | int attr) | |
3610 | { | |
3611 | struct nlattr *rate; | |
8eb41c8d VK |
3612 | u32 bitrate; |
3613 | u16 bitrate_compat; | |
b51f3bee | 3614 | enum nl80211_attrs rate_flg; |
c8dcfd8a FF |
3615 | |
3616 | rate = nla_nest_start(msg, attr); | |
3617 | if (!rate) | |
db9c64cf | 3618 | return false; |
c8dcfd8a FF |
3619 | |
3620 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
3621 | bitrate = cfg80211_calculate_bitrate(info); | |
8eb41c8d VK |
3622 | /* report 16-bit bitrate only if we can */ |
3623 | bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; | |
db9c64cf JB |
3624 | if (bitrate > 0 && |
3625 | nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) | |
3626 | return false; | |
3627 | if (bitrate_compat > 0 && | |
3628 | nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) | |
3629 | return false; | |
3630 | ||
b51f3bee JB |
3631 | switch (info->bw) { |
3632 | case RATE_INFO_BW_5: | |
3633 | rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH; | |
3634 | break; | |
3635 | case RATE_INFO_BW_10: | |
3636 | rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH; | |
3637 | break; | |
3638 | default: | |
3639 | WARN_ON(1); | |
3640 | /* fall through */ | |
3641 | case RATE_INFO_BW_20: | |
3642 | rate_flg = 0; | |
3643 | break; | |
3644 | case RATE_INFO_BW_40: | |
3645 | rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH; | |
3646 | break; | |
3647 | case RATE_INFO_BW_80: | |
3648 | rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH; | |
3649 | break; | |
3650 | case RATE_INFO_BW_160: | |
3651 | rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH; | |
3652 | break; | |
3653 | } | |
3654 | ||
3655 | if (rate_flg && nla_put_flag(msg, rate_flg)) | |
3656 | return false; | |
3657 | ||
db9c64cf JB |
3658 | if (info->flags & RATE_INFO_FLAGS_MCS) { |
3659 | if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) | |
3660 | return false; | |
db9c64cf JB |
3661 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && |
3662 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) | |
3663 | return false; | |
3664 | } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) { | |
3665 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs)) | |
3666 | return false; | |
3667 | if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss)) | |
3668 | return false; | |
db9c64cf JB |
3669 | if (info->flags & RATE_INFO_FLAGS_SHORT_GI && |
3670 | nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)) | |
3671 | return false; | |
3672 | } | |
c8dcfd8a FF |
3673 | |
3674 | nla_nest_end(msg, rate); | |
3675 | return true; | |
c8dcfd8a FF |
3676 | } |
3677 | ||
119363c7 FF |
3678 | static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal, |
3679 | int id) | |
3680 | { | |
3681 | void *attr; | |
3682 | int i = 0; | |
3683 | ||
3684 | if (!mask) | |
3685 | return true; | |
3686 | ||
3687 | attr = nla_nest_start(msg, id); | |
3688 | if (!attr) | |
3689 | return false; | |
3690 | ||
3691 | for (i = 0; i < IEEE80211_MAX_CHAINS; i++) { | |
3692 | if (!(mask & BIT(i))) | |
3693 | continue; | |
3694 | ||
3695 | if (nla_put_u8(msg, i, signal[i])) | |
3696 | return false; | |
3697 | } | |
3698 | ||
3699 | nla_nest_end(msg, attr); | |
3700 | ||
3701 | return true; | |
3702 | } | |
3703 | ||
cf5ead82 JB |
3704 | static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid, |
3705 | u32 seq, int flags, | |
66266b3a JL |
3706 | struct cfg80211_registered_device *rdev, |
3707 | struct net_device *dev, | |
98b62183 | 3708 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
3709 | { |
3710 | void *hdr; | |
f4263c98 | 3711 | struct nlattr *sinfoattr, *bss_param; |
fd5b74dc | 3712 | |
cf5ead82 | 3713 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
fd5b74dc JB |
3714 | if (!hdr) |
3715 | return -1; | |
3716 | ||
9360ffd1 DM |
3717 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
3718 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
3719 | nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation)) | |
3720 | goto nla_put_failure; | |
f5ea9120 | 3721 | |
2ec600d6 LCC |
3722 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
3723 | if (!sinfoattr) | |
fd5b74dc | 3724 | goto nla_put_failure; |
319090bf JB |
3725 | |
3726 | #define PUT_SINFO(attr, memb, type) do { \ | |
3727 | if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \ | |
3728 | nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \ | |
3729 | sinfo->memb)) \ | |
3730 | goto nla_put_failure; \ | |
3731 | } while (0) | |
3732 | ||
3733 | PUT_SINFO(CONNECTED_TIME, connected_time, u32); | |
3734 | PUT_SINFO(INACTIVE_TIME, inactive_time, u32); | |
3735 | ||
3736 | if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) | | |
3737 | BIT(NL80211_STA_INFO_RX_BYTES64)) && | |
9360ffd1 | 3738 | nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES, |
42745e03 | 3739 | (u32)sinfo->rx_bytes)) |
9360ffd1 | 3740 | goto nla_put_failure; |
319090bf JB |
3741 | |
3742 | if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) | | |
3743 | BIT(NL80211_STA_INFO_TX_BYTES64)) && | |
9360ffd1 | 3744 | nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES, |
42745e03 VK |
3745 | (u32)sinfo->tx_bytes)) |
3746 | goto nla_put_failure; | |
319090bf JB |
3747 | |
3748 | PUT_SINFO(RX_BYTES64, rx_bytes, u64); | |
3749 | PUT_SINFO(TX_BYTES64, tx_bytes, u64); | |
3750 | PUT_SINFO(LLID, llid, u16); | |
3751 | PUT_SINFO(PLID, plid, u16); | |
3752 | PUT_SINFO(PLINK_STATE, plink_state, u8); | |
3753 | ||
66266b3a JL |
3754 | switch (rdev->wiphy.signal_type) { |
3755 | case CFG80211_SIGNAL_TYPE_MBM: | |
319090bf JB |
3756 | PUT_SINFO(SIGNAL, signal, u8); |
3757 | PUT_SINFO(SIGNAL_AVG, signal_avg, u8); | |
66266b3a JL |
3758 | break; |
3759 | default: | |
3760 | break; | |
3761 | } | |
319090bf | 3762 | if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) { |
119363c7 FF |
3763 | if (!nl80211_put_signal(msg, sinfo->chains, |
3764 | sinfo->chain_signal, | |
3765 | NL80211_STA_INFO_CHAIN_SIGNAL)) | |
3766 | goto nla_put_failure; | |
3767 | } | |
319090bf | 3768 | if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) { |
119363c7 FF |
3769 | if (!nl80211_put_signal(msg, sinfo->chains, |
3770 | sinfo->chain_signal_avg, | |
3771 | NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) | |
3772 | goto nla_put_failure; | |
3773 | } | |
319090bf | 3774 | if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) { |
c8dcfd8a FF |
3775 | if (!nl80211_put_sta_rate(msg, &sinfo->txrate, |
3776 | NL80211_STA_INFO_TX_BITRATE)) | |
3777 | goto nla_put_failure; | |
3778 | } | |
319090bf | 3779 | if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) { |
c8dcfd8a FF |
3780 | if (!nl80211_put_sta_rate(msg, &sinfo->rxrate, |
3781 | NL80211_STA_INFO_RX_BITRATE)) | |
420e7fab | 3782 | goto nla_put_failure; |
420e7fab | 3783 | } |
319090bf JB |
3784 | |
3785 | PUT_SINFO(RX_PACKETS, rx_packets, u32); | |
3786 | PUT_SINFO(TX_PACKETS, tx_packets, u32); | |
3787 | PUT_SINFO(TX_RETRIES, tx_retries, u32); | |
3788 | PUT_SINFO(TX_FAILED, tx_failed, u32); | |
3789 | PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32); | |
3790 | PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32); | |
3791 | PUT_SINFO(LOCAL_PM, local_pm, u32); | |
3792 | PUT_SINFO(PEER_PM, peer_pm, u32); | |
3793 | PUT_SINFO(NONPEER_PM, nonpeer_pm, u32); | |
3794 | ||
3795 | if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) { | |
f4263c98 PS |
3796 | bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM); |
3797 | if (!bss_param) | |
3798 | goto nla_put_failure; | |
3799 | ||
9360ffd1 DM |
3800 | if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) && |
3801 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) || | |
3802 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) && | |
3803 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) || | |
3804 | ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) && | |
3805 | nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) || | |
3806 | nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD, | |
3807 | sinfo->bss_param.dtim_period) || | |
3808 | nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL, | |
3809 | sinfo->bss_param.beacon_interval)) | |
3810 | goto nla_put_failure; | |
f4263c98 PS |
3811 | |
3812 | nla_nest_end(msg, bss_param); | |
3813 | } | |
319090bf | 3814 | if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) && |
9360ffd1 DM |
3815 | nla_put(msg, NL80211_STA_INFO_STA_FLAGS, |
3816 | sizeof(struct nl80211_sta_flag_update), | |
3817 | &sinfo->sta_flags)) | |
3818 | goto nla_put_failure; | |
319090bf JB |
3819 | |
3820 | PUT_SINFO(T_OFFSET, t_offset, u64); | |
3821 | PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64); | |
a76b1942 JB |
3822 | PUT_SINFO(BEACON_RX, rx_beacon, u64); |
3823 | PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8); | |
319090bf JB |
3824 | |
3825 | #undef PUT_SINFO | |
6de39808 JB |
3826 | |
3827 | if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) { | |
3828 | struct nlattr *tidsattr; | |
3829 | int tid; | |
3830 | ||
3831 | tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS); | |
3832 | if (!tidsattr) | |
3833 | goto nla_put_failure; | |
3834 | ||
3835 | for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) { | |
3836 | struct cfg80211_tid_stats *tidstats; | |
3837 | struct nlattr *tidattr; | |
3838 | ||
3839 | tidstats = &sinfo->pertid[tid]; | |
3840 | ||
3841 | if (!tidstats->filled) | |
3842 | continue; | |
3843 | ||
3844 | tidattr = nla_nest_start(msg, tid + 1); | |
3845 | if (!tidattr) | |
3846 | goto nla_put_failure; | |
3847 | ||
3848 | #define PUT_TIDVAL(attr, memb, type) do { \ | |
3849 | if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \ | |
3850 | nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \ | |
3851 | tidstats->memb)) \ | |
3852 | goto nla_put_failure; \ | |
3853 | } while (0) | |
3854 | ||
3855 | PUT_TIDVAL(RX_MSDU, rx_msdu, u64); | |
3856 | PUT_TIDVAL(TX_MSDU, tx_msdu, u64); | |
3857 | PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64); | |
3858 | PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64); | |
3859 | ||
3860 | #undef PUT_TIDVAL | |
3861 | nla_nest_end(msg, tidattr); | |
3862 | } | |
3863 | ||
3864 | nla_nest_end(msg, tidsattr); | |
3865 | } | |
3866 | ||
2ec600d6 | 3867 | nla_nest_end(msg, sinfoattr); |
fd5b74dc | 3868 | |
319090bf | 3869 | if (sinfo->assoc_req_ies_len && |
9360ffd1 DM |
3870 | nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len, |
3871 | sinfo->assoc_req_ies)) | |
3872 | goto nla_put_failure; | |
50d3dfb7 | 3873 | |
053c095a JB |
3874 | genlmsg_end(msg, hdr); |
3875 | return 0; | |
fd5b74dc JB |
3876 | |
3877 | nla_put_failure: | |
bc3ed28c TG |
3878 | genlmsg_cancel(msg, hdr); |
3879 | return -EMSGSIZE; | |
fd5b74dc JB |
3880 | } |
3881 | ||
2ec600d6 | 3882 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 3883 | struct netlink_callback *cb) |
2ec600d6 | 3884 | { |
2ec600d6 | 3885 | struct station_info sinfo; |
1b8ec87a | 3886 | struct cfg80211_registered_device *rdev; |
97990a06 | 3887 | struct wireless_dev *wdev; |
2ec600d6 | 3888 | u8 mac_addr[ETH_ALEN]; |
97990a06 | 3889 | int sta_idx = cb->args[2]; |
2ec600d6 | 3890 | int err; |
2ec600d6 | 3891 | |
1b8ec87a | 3892 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
3893 | if (err) |
3894 | return err; | |
bba95fef | 3895 | |
97990a06 JB |
3896 | if (!wdev->netdev) { |
3897 | err = -EINVAL; | |
3898 | goto out_err; | |
3899 | } | |
3900 | ||
1b8ec87a | 3901 | if (!rdev->ops->dump_station) { |
eec60b03 | 3902 | err = -EOPNOTSUPP; |
bba95fef JB |
3903 | goto out_err; |
3904 | } | |
3905 | ||
bba95fef | 3906 | while (1) { |
f612cedf | 3907 | memset(&sinfo, 0, sizeof(sinfo)); |
1b8ec87a | 3908 | err = rdev_dump_station(rdev, wdev->netdev, sta_idx, |
e35e4d28 | 3909 | mac_addr, &sinfo); |
bba95fef JB |
3910 | if (err == -ENOENT) |
3911 | break; | |
3912 | if (err) | |
3b85875a | 3913 | goto out_err; |
bba95fef | 3914 | |
cf5ead82 | 3915 | if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION, |
15e47304 | 3916 | NETLINK_CB(cb->skb).portid, |
bba95fef | 3917 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
1b8ec87a | 3918 | rdev, wdev->netdev, mac_addr, |
bba95fef JB |
3919 | &sinfo) < 0) |
3920 | goto out; | |
3921 | ||
3922 | sta_idx++; | |
3923 | } | |
3924 | ||
3925 | ||
3926 | out: | |
97990a06 | 3927 | cb->args[2] = sta_idx; |
bba95fef | 3928 | err = skb->len; |
bba95fef | 3929 | out_err: |
1b8ec87a | 3930 | nl80211_finish_wdev_dump(rdev); |
bba95fef JB |
3931 | |
3932 | return err; | |
2ec600d6 | 3933 | } |
fd5b74dc | 3934 | |
5727ef1b JB |
3935 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
3936 | { | |
4c476991 JB |
3937 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3938 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 3939 | struct station_info sinfo; |
fd5b74dc JB |
3940 | struct sk_buff *msg; |
3941 | u8 *mac_addr = NULL; | |
4c476991 | 3942 | int err; |
fd5b74dc | 3943 | |
2ec600d6 | 3944 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
3945 | |
3946 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3947 | return -EINVAL; | |
3948 | ||
3949 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3950 | ||
4c476991 JB |
3951 | if (!rdev->ops->get_station) |
3952 | return -EOPNOTSUPP; | |
3b85875a | 3953 | |
e35e4d28 | 3954 | err = rdev_get_station(rdev, dev, mac_addr, &sinfo); |
fd5b74dc | 3955 | if (err) |
4c476991 | 3956 | return err; |
2ec600d6 | 3957 | |
fd2120ca | 3958 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 3959 | if (!msg) |
4c476991 | 3960 | return -ENOMEM; |
fd5b74dc | 3961 | |
cf5ead82 JB |
3962 | if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, |
3963 | info->snd_portid, info->snd_seq, 0, | |
66266b3a | 3964 | rdev, dev, mac_addr, &sinfo) < 0) { |
4c476991 JB |
3965 | nlmsg_free(msg); |
3966 | return -ENOBUFS; | |
3967 | } | |
3b85875a | 3968 | |
4c476991 | 3969 | return genlmsg_reply(msg, info); |
5727ef1b JB |
3970 | } |
3971 | ||
77ee7c89 JB |
3972 | int cfg80211_check_station_change(struct wiphy *wiphy, |
3973 | struct station_parameters *params, | |
3974 | enum cfg80211_station_type statype) | |
3975 | { | |
e4208427 AB |
3976 | if (params->listen_interval != -1 && |
3977 | statype != CFG80211_STA_AP_CLIENT_UNASSOC) | |
77ee7c89 | 3978 | return -EINVAL; |
e4208427 | 3979 | |
c72e1140 | 3980 | if (params->aid && |
e4208427 AB |
3981 | !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) && |
3982 | statype != CFG80211_STA_AP_CLIENT_UNASSOC) | |
77ee7c89 JB |
3983 | return -EINVAL; |
3984 | ||
3985 | /* When you run into this, adjust the code below for the new flag */ | |
3986 | BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); | |
3987 | ||
3988 | switch (statype) { | |
eef941e6 TP |
3989 | case CFG80211_STA_MESH_PEER_KERNEL: |
3990 | case CFG80211_STA_MESH_PEER_USER: | |
77ee7c89 JB |
3991 | /* |
3992 | * No ignoring the TDLS flag here -- the userspace mesh | |
3993 | * code doesn't have the bug of including TDLS in the | |
3994 | * mask everywhere. | |
3995 | */ | |
3996 | if (params->sta_flags_mask & | |
3997 | ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
3998 | BIT(NL80211_STA_FLAG_MFP) | | |
3999 | BIT(NL80211_STA_FLAG_AUTHORIZED))) | |
4000 | return -EINVAL; | |
4001 | break; | |
4002 | case CFG80211_STA_TDLS_PEER_SETUP: | |
4003 | case CFG80211_STA_TDLS_PEER_ACTIVE: | |
4004 | if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
4005 | return -EINVAL; | |
4006 | /* ignore since it can't change */ | |
4007 | params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
4008 | break; | |
4009 | default: | |
4010 | /* disallow mesh-specific things */ | |
4011 | if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION) | |
4012 | return -EINVAL; | |
4013 | if (params->local_pm) | |
4014 | return -EINVAL; | |
4015 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) | |
4016 | return -EINVAL; | |
4017 | } | |
4018 | ||
4019 | if (statype != CFG80211_STA_TDLS_PEER_SETUP && | |
4020 | statype != CFG80211_STA_TDLS_PEER_ACTIVE) { | |
4021 | /* TDLS can't be set, ... */ | |
4022 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) | |
4023 | return -EINVAL; | |
4024 | /* | |
4025 | * ... but don't bother the driver with it. This works around | |
4026 | * a hostapd/wpa_supplicant issue -- it always includes the | |
4027 | * TLDS_PEER flag in the mask even for AP mode. | |
4028 | */ | |
4029 | params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
4030 | } | |
4031 | ||
47edb11b AB |
4032 | if (statype != CFG80211_STA_TDLS_PEER_SETUP && |
4033 | statype != CFG80211_STA_AP_CLIENT_UNASSOC) { | |
77ee7c89 JB |
4034 | /* reject other things that can't change */ |
4035 | if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) | |
4036 | return -EINVAL; | |
4037 | if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY) | |
4038 | return -EINVAL; | |
4039 | if (params->supported_rates) | |
4040 | return -EINVAL; | |
4041 | if (params->ext_capab || params->ht_capa || params->vht_capa) | |
4042 | return -EINVAL; | |
4043 | } | |
4044 | ||
47edb11b AB |
4045 | if (statype != CFG80211_STA_AP_CLIENT && |
4046 | statype != CFG80211_STA_AP_CLIENT_UNASSOC) { | |
77ee7c89 JB |
4047 | if (params->vlan) |
4048 | return -EINVAL; | |
4049 | } | |
4050 | ||
4051 | switch (statype) { | |
4052 | case CFG80211_STA_AP_MLME_CLIENT: | |
4053 | /* Use this only for authorizing/unauthorizing a station */ | |
4054 | if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) | |
4055 | return -EOPNOTSUPP; | |
4056 | break; | |
4057 | case CFG80211_STA_AP_CLIENT: | |
47edb11b | 4058 | case CFG80211_STA_AP_CLIENT_UNASSOC: |
77ee7c89 JB |
4059 | /* accept only the listed bits */ |
4060 | if (params->sta_flags_mask & | |
4061 | ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
4062 | BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
4063 | BIT(NL80211_STA_FLAG_ASSOCIATED) | | |
4064 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | | |
4065 | BIT(NL80211_STA_FLAG_WME) | | |
4066 | BIT(NL80211_STA_FLAG_MFP))) | |
4067 | return -EINVAL; | |
4068 | ||
4069 | /* but authenticated/associated only if driver handles it */ | |
4070 | if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) && | |
4071 | params->sta_flags_mask & | |
4072 | (BIT(NL80211_STA_FLAG_AUTHENTICATED) | | |
4073 | BIT(NL80211_STA_FLAG_ASSOCIATED))) | |
4074 | return -EINVAL; | |
4075 | break; | |
4076 | case CFG80211_STA_IBSS: | |
4077 | case CFG80211_STA_AP_STA: | |
4078 | /* reject any changes other than AUTHORIZED */ | |
4079 | if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
4080 | return -EINVAL; | |
4081 | break; | |
4082 | case CFG80211_STA_TDLS_PEER_SETUP: | |
4083 | /* reject any changes other than AUTHORIZED or WME */ | |
4084 | if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) | | |
4085 | BIT(NL80211_STA_FLAG_WME))) | |
4086 | return -EINVAL; | |
4087 | /* force (at least) rates when authorizing */ | |
4088 | if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) && | |
4089 | !params->supported_rates) | |
4090 | return -EINVAL; | |
4091 | break; | |
4092 | case CFG80211_STA_TDLS_PEER_ACTIVE: | |
4093 | /* reject any changes */ | |
4094 | return -EINVAL; | |
eef941e6 | 4095 | case CFG80211_STA_MESH_PEER_KERNEL: |
77ee7c89 JB |
4096 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) |
4097 | return -EINVAL; | |
4098 | break; | |
eef941e6 | 4099 | case CFG80211_STA_MESH_PEER_USER: |
42925040 CYY |
4100 | if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION && |
4101 | params->plink_action != NL80211_PLINK_ACTION_BLOCK) | |
77ee7c89 JB |
4102 | return -EINVAL; |
4103 | break; | |
4104 | } | |
4105 | ||
4106 | return 0; | |
4107 | } | |
4108 | EXPORT_SYMBOL(cfg80211_check_station_change); | |
4109 | ||
5727ef1b | 4110 | /* |
c258d2de | 4111 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 4112 | */ |
80b99899 JB |
4113 | static struct net_device *get_vlan(struct genl_info *info, |
4114 | struct cfg80211_registered_device *rdev) | |
5727ef1b | 4115 | { |
463d0183 | 4116 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
80b99899 JB |
4117 | struct net_device *v; |
4118 | int ret; | |
4119 | ||
4120 | if (!vlanattr) | |
4121 | return NULL; | |
4122 | ||
4123 | v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr)); | |
4124 | if (!v) | |
4125 | return ERR_PTR(-ENODEV); | |
4126 | ||
4127 | if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) { | |
4128 | ret = -EINVAL; | |
4129 | goto error; | |
5727ef1b | 4130 | } |
80b99899 | 4131 | |
77ee7c89 JB |
4132 | if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
4133 | v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4134 | v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) { | |
4135 | ret = -EINVAL; | |
4136 | goto error; | |
4137 | } | |
4138 | ||
80b99899 JB |
4139 | if (!netif_running(v)) { |
4140 | ret = -ENETDOWN; | |
4141 | goto error; | |
4142 | } | |
4143 | ||
4144 | return v; | |
4145 | error: | |
4146 | dev_put(v); | |
4147 | return ERR_PTR(ret); | |
5727ef1b JB |
4148 | } |
4149 | ||
94e860f1 JB |
4150 | static const struct nla_policy |
4151 | nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = { | |
df881293 JM |
4152 | [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, |
4153 | [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, | |
4154 | }; | |
4155 | ||
ff276691 JB |
4156 | static int nl80211_parse_sta_wme(struct genl_info *info, |
4157 | struct station_parameters *params) | |
df881293 | 4158 | { |
df881293 JM |
4159 | struct nlattr *tb[NL80211_STA_WME_MAX + 1]; |
4160 | struct nlattr *nla; | |
4161 | int err; | |
4162 | ||
df881293 JM |
4163 | /* parse WME attributes if present */ |
4164 | if (!info->attrs[NL80211_ATTR_STA_WME]) | |
4165 | return 0; | |
4166 | ||
4167 | nla = info->attrs[NL80211_ATTR_STA_WME]; | |
4168 | err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla, | |
4169 | nl80211_sta_wme_policy); | |
4170 | if (err) | |
4171 | return err; | |
4172 | ||
4173 | if (tb[NL80211_STA_WME_UAPSD_QUEUES]) | |
4174 | params->uapsd_queues = nla_get_u8( | |
4175 | tb[NL80211_STA_WME_UAPSD_QUEUES]); | |
4176 | if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) | |
4177 | return -EINVAL; | |
4178 | ||
4179 | if (tb[NL80211_STA_WME_MAX_SP]) | |
4180 | params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); | |
4181 | ||
4182 | if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) | |
4183 | return -EINVAL; | |
4184 | ||
4185 | params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD; | |
4186 | ||
4187 | return 0; | |
4188 | } | |
4189 | ||
c01fc9ad SD |
4190 | static int nl80211_parse_sta_channel_info(struct genl_info *info, |
4191 | struct station_parameters *params) | |
4192 | { | |
4193 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) { | |
4194 | params->supported_channels = | |
4195 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); | |
4196 | params->supported_channels_len = | |
4197 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]); | |
4198 | /* | |
4199 | * Need to include at least one (first channel, number of | |
4200 | * channels) tuple for each subband, and must have proper | |
4201 | * tuples for the rest of the data as well. | |
4202 | */ | |
4203 | if (params->supported_channels_len < 2) | |
4204 | return -EINVAL; | |
4205 | if (params->supported_channels_len % 2) | |
4206 | return -EINVAL; | |
4207 | } | |
4208 | ||
4209 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) { | |
4210 | params->supported_oper_classes = | |
4211 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); | |
4212 | params->supported_oper_classes_len = | |
4213 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]); | |
4214 | /* | |
4215 | * The value of the Length field of the Supported Operating | |
4216 | * Classes element is between 2 and 253. | |
4217 | */ | |
4218 | if (params->supported_oper_classes_len < 2 || | |
4219 | params->supported_oper_classes_len > 253) | |
4220 | return -EINVAL; | |
4221 | } | |
4222 | return 0; | |
4223 | } | |
4224 | ||
ff276691 JB |
4225 | static int nl80211_set_station_tdls(struct genl_info *info, |
4226 | struct station_parameters *params) | |
4227 | { | |
c01fc9ad | 4228 | int err; |
ff276691 | 4229 | /* Dummy STA entry gets updated once the peer capabilities are known */ |
5e4b6f56 JM |
4230 | if (info->attrs[NL80211_ATTR_PEER_AID]) |
4231 | params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); | |
ff276691 JB |
4232 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
4233 | params->ht_capa = | |
4234 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
4235 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) | |
4236 | params->vht_capa = | |
4237 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
4238 | ||
c01fc9ad SD |
4239 | err = nl80211_parse_sta_channel_info(info, params); |
4240 | if (err) | |
4241 | return err; | |
4242 | ||
ff276691 JB |
4243 | return nl80211_parse_sta_wme(info, params); |
4244 | } | |
4245 | ||
5727ef1b JB |
4246 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) |
4247 | { | |
4c476991 | 4248 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 4249 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b | 4250 | struct station_parameters params; |
77ee7c89 JB |
4251 | u8 *mac_addr; |
4252 | int err; | |
5727ef1b JB |
4253 | |
4254 | memset(¶ms, 0, sizeof(params)); | |
4255 | ||
77ee7c89 JB |
4256 | if (!rdev->ops->change_station) |
4257 | return -EOPNOTSUPP; | |
4258 | ||
e4208427 AB |
4259 | /* |
4260 | * AID and listen_interval properties can be set only for unassociated | |
4261 | * station. Include these parameters here and will check them in | |
4262 | * cfg80211_check_station_change(). | |
4263 | */ | |
a9bc31e4 AB |
4264 | if (info->attrs[NL80211_ATTR_STA_AID]) |
4265 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
e4208427 AB |
4266 | |
4267 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
4268 | params.listen_interval = | |
4269 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
4270 | else | |
4271 | params.listen_interval = -1; | |
5727ef1b JB |
4272 | |
4273 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4274 | return -EINVAL; | |
4275 | ||
4276 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4277 | ||
4278 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
4279 | params.supported_rates = | |
4280 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4281 | params.supported_rates_len = | |
4282 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4283 | } | |
4284 | ||
9d62a986 JM |
4285 | if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { |
4286 | params.capability = | |
4287 | nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); | |
4288 | params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; | |
4289 | } | |
4290 | ||
4291 | if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { | |
4292 | params.ext_capab = | |
4293 | nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4294 | params.ext_capab_len = | |
4295 | nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4296 | } | |
4297 | ||
bdd3ae3d | 4298 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
4299 | return -EINVAL; |
4300 | ||
f8bacc21 | 4301 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) { |
2ec600d6 | 4302 | params.plink_action = |
f8bacc21 JB |
4303 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
4304 | if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS) | |
4305 | return -EINVAL; | |
4306 | } | |
2ec600d6 | 4307 | |
f8bacc21 | 4308 | if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) { |
9c3990aa | 4309 | params.plink_state = |
f8bacc21 JB |
4310 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]); |
4311 | if (params.plink_state >= NUM_NL80211_PLINK_STATES) | |
4312 | return -EINVAL; | |
4313 | params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE; | |
4314 | } | |
9c3990aa | 4315 | |
3b1c5a53 MP |
4316 | if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) { |
4317 | enum nl80211_mesh_power_mode pm = nla_get_u32( | |
4318 | info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]); | |
4319 | ||
4320 | if (pm <= NL80211_MESH_POWER_UNKNOWN || | |
4321 | pm > NL80211_MESH_POWER_MAX) | |
4322 | return -EINVAL; | |
4323 | ||
4324 | params.local_pm = pm; | |
4325 | } | |
4326 | ||
77ee7c89 JB |
4327 | /* Include parameters for TDLS peer (will check later) */ |
4328 | err = nl80211_set_station_tdls(info, ¶ms); | |
4329 | if (err) | |
4330 | return err; | |
4331 | ||
4332 | params.vlan = get_vlan(info, rdev); | |
4333 | if (IS_ERR(params.vlan)) | |
4334 | return PTR_ERR(params.vlan); | |
4335 | ||
a97f4424 JB |
4336 | switch (dev->ieee80211_ptr->iftype) { |
4337 | case NL80211_IFTYPE_AP: | |
4338 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 4339 | case NL80211_IFTYPE_P2P_GO: |
074ac8df | 4340 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 | 4341 | case NL80211_IFTYPE_STATION: |
267335d6 | 4342 | case NL80211_IFTYPE_ADHOC: |
a97f4424 | 4343 | case NL80211_IFTYPE_MESH_POINT: |
a97f4424 JB |
4344 | break; |
4345 | default: | |
77ee7c89 JB |
4346 | err = -EOPNOTSUPP; |
4347 | goto out_put_vlan; | |
034d655e JB |
4348 | } |
4349 | ||
77ee7c89 | 4350 | /* driver will call cfg80211_check_station_change() */ |
e35e4d28 | 4351 | err = rdev_change_station(rdev, dev, mac_addr, ¶ms); |
5727ef1b | 4352 | |
77ee7c89 | 4353 | out_put_vlan: |
5727ef1b JB |
4354 | if (params.vlan) |
4355 | dev_put(params.vlan); | |
3b85875a | 4356 | |
5727ef1b JB |
4357 | return err; |
4358 | } | |
4359 | ||
4360 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
4361 | { | |
4c476991 | 4362 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 4363 | int err; |
4c476991 | 4364 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
4365 | struct station_parameters params; |
4366 | u8 *mac_addr = NULL; | |
bda95eb1 JB |
4367 | u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
4368 | BIT(NL80211_STA_FLAG_ASSOCIATED); | |
5727ef1b JB |
4369 | |
4370 | memset(¶ms, 0, sizeof(params)); | |
4371 | ||
984c311b JB |
4372 | if (!rdev->ops->add_station) |
4373 | return -EOPNOTSUPP; | |
4374 | ||
5727ef1b JB |
4375 | if (!info->attrs[NL80211_ATTR_MAC]) |
4376 | return -EINVAL; | |
4377 | ||
5727ef1b JB |
4378 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
4379 | return -EINVAL; | |
4380 | ||
4381 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
4382 | return -EINVAL; | |
4383 | ||
5e4b6f56 JM |
4384 | if (!info->attrs[NL80211_ATTR_STA_AID] && |
4385 | !info->attrs[NL80211_ATTR_PEER_AID]) | |
0e956c13 TLSC |
4386 | return -EINVAL; |
4387 | ||
5727ef1b JB |
4388 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
4389 | params.supported_rates = | |
4390 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4391 | params.supported_rates_len = | |
4392 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
4393 | params.listen_interval = | |
4394 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 4395 | |
3d124ea2 | 4396 | if (info->attrs[NL80211_ATTR_PEER_AID]) |
5e4b6f56 | 4397 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]); |
3d124ea2 JM |
4398 | else |
4399 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
0e956c13 TLSC |
4400 | if (!params.aid || params.aid > IEEE80211_MAX_AID) |
4401 | return -EINVAL; | |
51b50fbe | 4402 | |
9d62a986 JM |
4403 | if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) { |
4404 | params.capability = | |
4405 | nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]); | |
4406 | params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY; | |
4407 | } | |
4408 | ||
4409 | if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) { | |
4410 | params.ext_capab = | |
4411 | nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4412 | params.ext_capab_len = | |
4413 | nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]); | |
4414 | } | |
4415 | ||
36aedc90 JM |
4416 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
4417 | params.ht_capa = | |
4418 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 4419 | |
f461be3e MP |
4420 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) |
4421 | params.vht_capa = | |
4422 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]); | |
4423 | ||
60f4a7b1 MK |
4424 | if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) { |
4425 | params.opmode_notif_used = true; | |
4426 | params.opmode_notif = | |
4427 | nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]); | |
4428 | } | |
4429 | ||
f8bacc21 | 4430 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) { |
96b78dff | 4431 | params.plink_action = |
f8bacc21 JB |
4432 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); |
4433 | if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS) | |
4434 | return -EINVAL; | |
4435 | } | |
96b78dff | 4436 | |
c01fc9ad SD |
4437 | err = nl80211_parse_sta_channel_info(info, ¶ms); |
4438 | if (err) | |
4439 | return err; | |
4440 | ||
ff276691 JB |
4441 | err = nl80211_parse_sta_wme(info, ¶ms); |
4442 | if (err) | |
4443 | return err; | |
bdd90d5e | 4444 | |
bdd3ae3d | 4445 | if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms)) |
5727ef1b JB |
4446 | return -EINVAL; |
4447 | ||
496fcc29 JB |
4448 | /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT |
4449 | * as userspace might just pass through the capabilities from the IEs | |
4450 | * directly, rather than enforcing this restriction and returning an | |
4451 | * error in this case. | |
4452 | */ | |
4453 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) { | |
4454 | params.ht_capa = NULL; | |
4455 | params.vht_capa = NULL; | |
4456 | } | |
4457 | ||
77ee7c89 JB |
4458 | /* When you run into this, adjust the code below for the new flag */ |
4459 | BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7); | |
4460 | ||
bdd90d5e JB |
4461 | switch (dev->ieee80211_ptr->iftype) { |
4462 | case NL80211_IFTYPE_AP: | |
4463 | case NL80211_IFTYPE_AP_VLAN: | |
4464 | case NL80211_IFTYPE_P2P_GO: | |
984c311b JB |
4465 | /* ignore WME attributes if iface/sta is not capable */ |
4466 | if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) || | |
4467 | !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) | |
4468 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
c75786c9 | 4469 | |
bdd90d5e | 4470 | /* TDLS peers cannot be added */ |
3d124ea2 JM |
4471 | if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || |
4472 | info->attrs[NL80211_ATTR_PEER_AID]) | |
4319e193 | 4473 | return -EINVAL; |
bdd90d5e JB |
4474 | /* but don't bother the driver with it */ |
4475 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER); | |
3b9ce80c | 4476 | |
d582cffb JB |
4477 | /* allow authenticated/associated only if driver handles it */ |
4478 | if (!(rdev->wiphy.features & | |
4479 | NL80211_FEATURE_FULL_AP_CLIENT_STATE) && | |
bda95eb1 | 4480 | params.sta_flags_mask & auth_assoc) |
d582cffb JB |
4481 | return -EINVAL; |
4482 | ||
bda95eb1 JB |
4483 | /* Older userspace, or userspace wanting to be compatible with |
4484 | * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth | |
4485 | * and assoc flags in the mask, but assumes the station will be | |
4486 | * added as associated anyway since this was the required driver | |
4487 | * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was | |
4488 | * introduced. | |
4489 | * In order to not bother drivers with this quirk in the API | |
4490 | * set the flags in both the mask and set for new stations in | |
4491 | * this case. | |
4492 | */ | |
4493 | if (!(params.sta_flags_mask & auth_assoc)) { | |
4494 | params.sta_flags_mask |= auth_assoc; | |
4495 | params.sta_flags_set |= auth_assoc; | |
4496 | } | |
4497 | ||
bdd90d5e JB |
4498 | /* must be last in here for error handling */ |
4499 | params.vlan = get_vlan(info, rdev); | |
4500 | if (IS_ERR(params.vlan)) | |
4501 | return PTR_ERR(params.vlan); | |
4502 | break; | |
4503 | case NL80211_IFTYPE_MESH_POINT: | |
984c311b JB |
4504 | /* ignore uAPSD data */ |
4505 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
4506 | ||
d582cffb JB |
4507 | /* associated is disallowed */ |
4508 | if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) | |
4509 | return -EINVAL; | |
bdd90d5e | 4510 | /* TDLS peers cannot be added */ |
3d124ea2 JM |
4511 | if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) || |
4512 | info->attrs[NL80211_ATTR_PEER_AID]) | |
bdd90d5e JB |
4513 | return -EINVAL; |
4514 | break; | |
4515 | case NL80211_IFTYPE_STATION: | |
93d08f0b | 4516 | case NL80211_IFTYPE_P2P_CLIENT: |
984c311b JB |
4517 | /* ignore uAPSD data */ |
4518 | params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD; | |
4519 | ||
77ee7c89 JB |
4520 | /* these are disallowed */ |
4521 | if (params.sta_flags_mask & | |
4522 | (BIT(NL80211_STA_FLAG_ASSOCIATED) | | |
4523 | BIT(NL80211_STA_FLAG_AUTHENTICATED))) | |
d582cffb | 4524 | return -EINVAL; |
bdd90d5e JB |
4525 | /* Only TDLS peers can be added */ |
4526 | if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) | |
4527 | return -EINVAL; | |
4528 | /* Can only add if TDLS ... */ | |
4529 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)) | |
4530 | return -EOPNOTSUPP; | |
4531 | /* ... with external setup is supported */ | |
4532 | if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) | |
4533 | return -EOPNOTSUPP; | |
77ee7c89 JB |
4534 | /* |
4535 | * Older wpa_supplicant versions always mark the TDLS peer | |
4536 | * as authorized, but it shouldn't yet be. | |
4537 | */ | |
4538 | params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED); | |
bdd90d5e JB |
4539 | break; |
4540 | default: | |
4541 | return -EOPNOTSUPP; | |
c75786c9 EP |
4542 | } |
4543 | ||
bdd90d5e | 4544 | /* be aware of params.vlan when changing code here */ |
5727ef1b | 4545 | |
e35e4d28 | 4546 | err = rdev_add_station(rdev, dev, mac_addr, ¶ms); |
5727ef1b | 4547 | |
5727ef1b JB |
4548 | if (params.vlan) |
4549 | dev_put(params.vlan); | |
5727ef1b JB |
4550 | return err; |
4551 | } | |
4552 | ||
4553 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
4554 | { | |
4c476991 JB |
4555 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4556 | struct net_device *dev = info->user_ptr[1]; | |
89c771e5 JM |
4557 | struct station_del_parameters params; |
4558 | ||
4559 | memset(¶ms, 0, sizeof(params)); | |
5727ef1b JB |
4560 | |
4561 | if (info->attrs[NL80211_ATTR_MAC]) | |
89c771e5 | 4562 | params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]); |
5727ef1b | 4563 | |
e80cf853 | 4564 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 4565 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 4566 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
4567 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4568 | return -EINVAL; | |
5727ef1b | 4569 | |
4c476991 JB |
4570 | if (!rdev->ops->del_station) |
4571 | return -EOPNOTSUPP; | |
3b85875a | 4572 | |
98856866 JM |
4573 | if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) { |
4574 | params.subtype = | |
4575 | nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]); | |
4576 | if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 && | |
4577 | params.subtype != IEEE80211_STYPE_DEAUTH >> 4) | |
4578 | return -EINVAL; | |
4579 | } else { | |
4580 | /* Default to Deauthentication frame */ | |
4581 | params.subtype = IEEE80211_STYPE_DEAUTH >> 4; | |
4582 | } | |
4583 | ||
4584 | if (info->attrs[NL80211_ATTR_REASON_CODE]) { | |
4585 | params.reason_code = | |
4586 | nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
4587 | if (params.reason_code == 0) | |
4588 | return -EINVAL; /* 0 is reserved */ | |
4589 | } else { | |
4590 | /* Default to reason code 2 */ | |
4591 | params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID; | |
4592 | } | |
4593 | ||
89c771e5 | 4594 | return rdev_del_station(rdev, dev, ¶ms); |
5727ef1b JB |
4595 | } |
4596 | ||
15e47304 | 4597 | static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, |
2ec600d6 LCC |
4598 | int flags, struct net_device *dev, |
4599 | u8 *dst, u8 *next_hop, | |
4600 | struct mpath_info *pinfo) | |
4601 | { | |
4602 | void *hdr; | |
4603 | struct nlattr *pinfoattr; | |
4604 | ||
1ef4c850 | 4605 | hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH); |
2ec600d6 LCC |
4606 | if (!hdr) |
4607 | return -1; | |
4608 | ||
9360ffd1 DM |
4609 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
4610 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) || | |
4611 | nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) || | |
4612 | nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation)) | |
4613 | goto nla_put_failure; | |
f5ea9120 | 4614 | |
2ec600d6 LCC |
4615 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
4616 | if (!pinfoattr) | |
4617 | goto nla_put_failure; | |
9360ffd1 DM |
4618 | if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) && |
4619 | nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
4620 | pinfo->frame_qlen)) | |
4621 | goto nla_put_failure; | |
4622 | if (((pinfo->filled & MPATH_INFO_SN) && | |
4623 | nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) || | |
4624 | ((pinfo->filled & MPATH_INFO_METRIC) && | |
4625 | nla_put_u32(msg, NL80211_MPATH_INFO_METRIC, | |
4626 | pinfo->metric)) || | |
4627 | ((pinfo->filled & MPATH_INFO_EXPTIME) && | |
4628 | nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME, | |
4629 | pinfo->exptime)) || | |
4630 | ((pinfo->filled & MPATH_INFO_FLAGS) && | |
4631 | nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS, | |
4632 | pinfo->flags)) || | |
4633 | ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) && | |
4634 | nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
4635 | pinfo->discovery_timeout)) || | |
4636 | ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) && | |
4637 | nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
4638 | pinfo->discovery_retries))) | |
4639 | goto nla_put_failure; | |
2ec600d6 LCC |
4640 | |
4641 | nla_nest_end(msg, pinfoattr); | |
4642 | ||
053c095a JB |
4643 | genlmsg_end(msg, hdr); |
4644 | return 0; | |
2ec600d6 LCC |
4645 | |
4646 | nla_put_failure: | |
bc3ed28c TG |
4647 | genlmsg_cancel(msg, hdr); |
4648 | return -EMSGSIZE; | |
2ec600d6 LCC |
4649 | } |
4650 | ||
4651 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 4652 | struct netlink_callback *cb) |
2ec600d6 | 4653 | { |
2ec600d6 | 4654 | struct mpath_info pinfo; |
1b8ec87a | 4655 | struct cfg80211_registered_device *rdev; |
97990a06 | 4656 | struct wireless_dev *wdev; |
2ec600d6 LCC |
4657 | u8 dst[ETH_ALEN]; |
4658 | u8 next_hop[ETH_ALEN]; | |
97990a06 | 4659 | int path_idx = cb->args[2]; |
2ec600d6 | 4660 | int err; |
2ec600d6 | 4661 | |
1b8ec87a | 4662 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
4663 | if (err) |
4664 | return err; | |
bba95fef | 4665 | |
1b8ec87a | 4666 | if (!rdev->ops->dump_mpath) { |
eec60b03 | 4667 | err = -EOPNOTSUPP; |
bba95fef JB |
4668 | goto out_err; |
4669 | } | |
4670 | ||
97990a06 | 4671 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { |
eec60b03 | 4672 | err = -EOPNOTSUPP; |
0448b5fc | 4673 | goto out_err; |
eec60b03 JM |
4674 | } |
4675 | ||
bba95fef | 4676 | while (1) { |
1b8ec87a | 4677 | err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst, |
97990a06 | 4678 | next_hop, &pinfo); |
bba95fef | 4679 | if (err == -ENOENT) |
2ec600d6 | 4680 | break; |
bba95fef | 4681 | if (err) |
3b85875a | 4682 | goto out_err; |
2ec600d6 | 4683 | |
15e47304 | 4684 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, |
bba95fef | 4685 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
97990a06 | 4686 | wdev->netdev, dst, next_hop, |
bba95fef JB |
4687 | &pinfo) < 0) |
4688 | goto out; | |
2ec600d6 | 4689 | |
bba95fef | 4690 | path_idx++; |
2ec600d6 | 4691 | } |
2ec600d6 | 4692 | |
2ec600d6 | 4693 | |
bba95fef | 4694 | out: |
97990a06 | 4695 | cb->args[2] = path_idx; |
bba95fef | 4696 | err = skb->len; |
bba95fef | 4697 | out_err: |
1b8ec87a | 4698 | nl80211_finish_wdev_dump(rdev); |
bba95fef | 4699 | return err; |
2ec600d6 LCC |
4700 | } |
4701 | ||
4702 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
4703 | { | |
4c476991 | 4704 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 4705 | int err; |
4c476991 | 4706 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
4707 | struct mpath_info pinfo; |
4708 | struct sk_buff *msg; | |
4709 | u8 *dst = NULL; | |
4710 | u8 next_hop[ETH_ALEN]; | |
4711 | ||
4712 | memset(&pinfo, 0, sizeof(pinfo)); | |
4713 | ||
4714 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4715 | return -EINVAL; | |
4716 | ||
4717 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4718 | ||
4c476991 JB |
4719 | if (!rdev->ops->get_mpath) |
4720 | return -EOPNOTSUPP; | |
2ec600d6 | 4721 | |
4c476991 JB |
4722 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4723 | return -EOPNOTSUPP; | |
eec60b03 | 4724 | |
e35e4d28 | 4725 | err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo); |
2ec600d6 | 4726 | if (err) |
4c476991 | 4727 | return err; |
2ec600d6 | 4728 | |
fd2120ca | 4729 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 4730 | if (!msg) |
4c476991 | 4731 | return -ENOMEM; |
2ec600d6 | 4732 | |
15e47304 | 4733 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, |
4c476991 JB |
4734 | dev, dst, next_hop, &pinfo) < 0) { |
4735 | nlmsg_free(msg); | |
4736 | return -ENOBUFS; | |
4737 | } | |
3b85875a | 4738 | |
4c476991 | 4739 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
4740 | } |
4741 | ||
4742 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
4743 | { | |
4c476991 JB |
4744 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4745 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
4746 | u8 *dst = NULL; |
4747 | u8 *next_hop = NULL; | |
4748 | ||
4749 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4750 | return -EINVAL; | |
4751 | ||
4752 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
4753 | return -EINVAL; | |
4754 | ||
4755 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4756 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
4757 | ||
4c476991 JB |
4758 | if (!rdev->ops->change_mpath) |
4759 | return -EOPNOTSUPP; | |
35a8efe1 | 4760 | |
4c476991 JB |
4761 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4762 | return -EOPNOTSUPP; | |
2ec600d6 | 4763 | |
e35e4d28 | 4764 | return rdev_change_mpath(rdev, dev, dst, next_hop); |
2ec600d6 | 4765 | } |
4c476991 | 4766 | |
2ec600d6 LCC |
4767 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
4768 | { | |
4c476991 JB |
4769 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4770 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
4771 | u8 *dst = NULL; |
4772 | u8 *next_hop = NULL; | |
4773 | ||
4774 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4775 | return -EINVAL; | |
4776 | ||
4777 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
4778 | return -EINVAL; | |
4779 | ||
4780 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4781 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
4782 | ||
4c476991 JB |
4783 | if (!rdev->ops->add_mpath) |
4784 | return -EOPNOTSUPP; | |
35a8efe1 | 4785 | |
4c476991 JB |
4786 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
4787 | return -EOPNOTSUPP; | |
2ec600d6 | 4788 | |
e35e4d28 | 4789 | return rdev_add_mpath(rdev, dev, dst, next_hop); |
2ec600d6 LCC |
4790 | } |
4791 | ||
4792 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
4793 | { | |
4c476991 JB |
4794 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4795 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
4796 | u8 *dst = NULL; |
4797 | ||
4798 | if (info->attrs[NL80211_ATTR_MAC]) | |
4799 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4800 | ||
4c476991 JB |
4801 | if (!rdev->ops->del_mpath) |
4802 | return -EOPNOTSUPP; | |
3b85875a | 4803 | |
e35e4d28 | 4804 | return rdev_del_mpath(rdev, dev, dst); |
2ec600d6 LCC |
4805 | } |
4806 | ||
66be7d2b HR |
4807 | static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info) |
4808 | { | |
4809 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4810 | int err; | |
4811 | struct net_device *dev = info->user_ptr[1]; | |
4812 | struct mpath_info pinfo; | |
4813 | struct sk_buff *msg; | |
4814 | u8 *dst = NULL; | |
4815 | u8 mpp[ETH_ALEN]; | |
4816 | ||
4817 | memset(&pinfo, 0, sizeof(pinfo)); | |
4818 | ||
4819 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4820 | return -EINVAL; | |
4821 | ||
4822 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4823 | ||
4824 | if (!rdev->ops->get_mpp) | |
4825 | return -EOPNOTSUPP; | |
4826 | ||
4827 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) | |
4828 | return -EOPNOTSUPP; | |
4829 | ||
4830 | err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo); | |
4831 | if (err) | |
4832 | return err; | |
4833 | ||
4834 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4835 | if (!msg) | |
4836 | return -ENOMEM; | |
4837 | ||
4838 | if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, | |
4839 | dev, dst, mpp, &pinfo) < 0) { | |
4840 | nlmsg_free(msg); | |
4841 | return -ENOBUFS; | |
4842 | } | |
4843 | ||
4844 | return genlmsg_reply(msg, info); | |
4845 | } | |
4846 | ||
4847 | static int nl80211_dump_mpp(struct sk_buff *skb, | |
4848 | struct netlink_callback *cb) | |
4849 | { | |
4850 | struct mpath_info pinfo; | |
4851 | struct cfg80211_registered_device *rdev; | |
4852 | struct wireless_dev *wdev; | |
4853 | u8 dst[ETH_ALEN]; | |
4854 | u8 mpp[ETH_ALEN]; | |
4855 | int path_idx = cb->args[2]; | |
4856 | int err; | |
4857 | ||
4858 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); | |
4859 | if (err) | |
4860 | return err; | |
4861 | ||
4862 | if (!rdev->ops->dump_mpp) { | |
4863 | err = -EOPNOTSUPP; | |
4864 | goto out_err; | |
4865 | } | |
4866 | ||
4867 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { | |
4868 | err = -EOPNOTSUPP; | |
4869 | goto out_err; | |
4870 | } | |
4871 | ||
4872 | while (1) { | |
4873 | err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst, | |
4874 | mpp, &pinfo); | |
4875 | if (err == -ENOENT) | |
4876 | break; | |
4877 | if (err) | |
4878 | goto out_err; | |
4879 | ||
4880 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, | |
4881 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
4882 | wdev->netdev, dst, mpp, | |
4883 | &pinfo) < 0) | |
4884 | goto out; | |
4885 | ||
4886 | path_idx++; | |
4887 | } | |
4888 | ||
4889 | out: | |
4890 | cb->args[2] = path_idx; | |
4891 | err = skb->len; | |
4892 | out_err: | |
4893 | nl80211_finish_wdev_dump(rdev); | |
4894 | return err; | |
4895 | } | |
4896 | ||
9f1ba906 JM |
4897 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
4898 | { | |
4c476991 JB |
4899 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4900 | struct net_device *dev = info->user_ptr[1]; | |
c56589ed | 4901 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
9f1ba906 | 4902 | struct bss_parameters params; |
c56589ed | 4903 | int err; |
9f1ba906 JM |
4904 | |
4905 | memset(¶ms, 0, sizeof(params)); | |
4906 | /* default to not changing parameters */ | |
4907 | params.use_cts_prot = -1; | |
4908 | params.use_short_preamble = -1; | |
4909 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 4910 | params.ap_isolate = -1; |
50b12f59 | 4911 | params.ht_opmode = -1; |
53cabad7 JB |
4912 | params.p2p_ctwindow = -1; |
4913 | params.p2p_opp_ps = -1; | |
9f1ba906 JM |
4914 | |
4915 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
4916 | params.use_cts_prot = | |
4917 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
4918 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
4919 | params.use_short_preamble = | |
4920 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
4921 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
4922 | params.use_short_slot_time = | |
4923 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
4924 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
4925 | params.basic_rates = | |
4926 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4927 | params.basic_rates_len = | |
4928 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4929 | } | |
fd8aaaf3 FF |
4930 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
4931 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
50b12f59 HS |
4932 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
4933 | params.ht_opmode = | |
4934 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
9f1ba906 | 4935 | |
53cabad7 JB |
4936 | if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) { |
4937 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4938 | return -EINVAL; | |
4939 | params.p2p_ctwindow = | |
4940 | nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]); | |
4941 | if (params.p2p_ctwindow < 0) | |
4942 | return -EINVAL; | |
4943 | if (params.p2p_ctwindow != 0 && | |
4944 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN)) | |
4945 | return -EINVAL; | |
4946 | } | |
4947 | ||
4948 | if (info->attrs[NL80211_ATTR_P2P_OPPPS]) { | |
4949 | u8 tmp; | |
4950 | ||
4951 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4952 | return -EINVAL; | |
4953 | tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]); | |
4954 | if (tmp > 1) | |
4955 | return -EINVAL; | |
4956 | params.p2p_opp_ps = tmp; | |
4957 | if (params.p2p_opp_ps && | |
4958 | !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS)) | |
4959 | return -EINVAL; | |
4960 | } | |
4961 | ||
4c476991 JB |
4962 | if (!rdev->ops->change_bss) |
4963 | return -EOPNOTSUPP; | |
9f1ba906 | 4964 | |
074ac8df | 4965 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
4966 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4967 | return -EOPNOTSUPP; | |
3b85875a | 4968 | |
c56589ed SW |
4969 | wdev_lock(wdev); |
4970 | err = rdev_change_bss(rdev, dev, ¶ms); | |
4971 | wdev_unlock(wdev); | |
4972 | ||
4973 | return err; | |
9f1ba906 JM |
4974 | } |
4975 | ||
b2e1b302 LR |
4976 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) |
4977 | { | |
b2e1b302 | 4978 | char *data = NULL; |
05050753 | 4979 | bool is_indoor; |
57b5ce07 | 4980 | enum nl80211_user_reg_hint_type user_reg_hint_type; |
05050753 I |
4981 | u32 owner_nlportid; |
4982 | ||
b2e1b302 | 4983 | |
80778f18 LR |
4984 | /* |
4985 | * You should only get this when cfg80211 hasn't yet initialized | |
4986 | * completely when built-in to the kernel right between the time | |
4987 | * window between nl80211_init() and regulatory_init(), if that is | |
4988 | * even possible. | |
4989 | */ | |
458f4f9e | 4990 | if (unlikely(!rcu_access_pointer(cfg80211_regdomain))) |
fe33eb39 | 4991 | return -EINPROGRESS; |
80778f18 | 4992 | |
57b5ce07 LR |
4993 | if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) |
4994 | user_reg_hint_type = | |
4995 | nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); | |
4996 | else | |
4997 | user_reg_hint_type = NL80211_USER_REG_HINT_USER; | |
4998 | ||
4999 | switch (user_reg_hint_type) { | |
5000 | case NL80211_USER_REG_HINT_USER: | |
5001 | case NL80211_USER_REG_HINT_CELL_BASE: | |
52616f2b IP |
5002 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
5003 | return -EINVAL; | |
5004 | ||
5005 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
5006 | return regulatory_hint_user(data, user_reg_hint_type); | |
5007 | case NL80211_USER_REG_HINT_INDOOR: | |
05050753 I |
5008 | if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) { |
5009 | owner_nlportid = info->snd_portid; | |
5010 | is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR]; | |
5011 | } else { | |
5012 | owner_nlportid = 0; | |
5013 | is_indoor = true; | |
5014 | } | |
5015 | ||
5016 | return regulatory_hint_indoor(is_indoor, owner_nlportid); | |
57b5ce07 LR |
5017 | default: |
5018 | return -EINVAL; | |
5019 | } | |
b2e1b302 LR |
5020 | } |
5021 | ||
24bdd9f4 | 5022 | static int nl80211_get_mesh_config(struct sk_buff *skb, |
29cbe68c | 5023 | struct genl_info *info) |
93da9cc1 | 5024 | { |
4c476991 | 5025 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 5026 | struct net_device *dev = info->user_ptr[1]; |
29cbe68c JB |
5027 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
5028 | struct mesh_config cur_params; | |
5029 | int err = 0; | |
93da9cc1 | 5030 | void *hdr; |
5031 | struct nlattr *pinfoattr; | |
5032 | struct sk_buff *msg; | |
5033 | ||
29cbe68c JB |
5034 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
5035 | return -EOPNOTSUPP; | |
5036 | ||
24bdd9f4 | 5037 | if (!rdev->ops->get_mesh_config) |
4c476991 | 5038 | return -EOPNOTSUPP; |
f3f92586 | 5039 | |
29cbe68c JB |
5040 | wdev_lock(wdev); |
5041 | /* If not connected, get default parameters */ | |
5042 | if (!wdev->mesh_id_len) | |
5043 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
5044 | else | |
e35e4d28 | 5045 | err = rdev_get_mesh_config(rdev, dev, &cur_params); |
29cbe68c JB |
5046 | wdev_unlock(wdev); |
5047 | ||
93da9cc1 | 5048 | if (err) |
4c476991 | 5049 | return err; |
93da9cc1 | 5050 | |
5051 | /* Draw up a netlink message to send back */ | |
fd2120ca | 5052 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
5053 | if (!msg) |
5054 | return -ENOMEM; | |
15e47304 | 5055 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
24bdd9f4 | 5056 | NL80211_CMD_GET_MESH_CONFIG); |
93da9cc1 | 5057 | if (!hdr) |
efe1cf0c | 5058 | goto out; |
24bdd9f4 | 5059 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG); |
93da9cc1 | 5060 | if (!pinfoattr) |
5061 | goto nla_put_failure; | |
9360ffd1 DM |
5062 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
5063 | nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
5064 | cur_params.dot11MeshRetryTimeout) || | |
5065 | nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
5066 | cur_params.dot11MeshConfirmTimeout) || | |
5067 | nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
5068 | cur_params.dot11MeshHoldingTimeout) || | |
5069 | nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
5070 | cur_params.dot11MeshMaxPeerLinks) || | |
5071 | nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
5072 | cur_params.dot11MeshMaxRetries) || | |
5073 | nla_put_u8(msg, NL80211_MESHCONF_TTL, | |
5074 | cur_params.dot11MeshTTL) || | |
5075 | nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL, | |
5076 | cur_params.element_ttl) || | |
5077 | nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
5078 | cur_params.auto_open_plinks) || | |
7eab0f64 JL |
5079 | nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
5080 | cur_params.dot11MeshNbrOffsetMaxNeighbor) || | |
9360ffd1 DM |
5081 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
5082 | cur_params.dot11MeshHWMPmaxPREQretries) || | |
5083 | nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
5084 | cur_params.path_refresh_time) || | |
5085 | nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
5086 | cur_params.min_discovery_timeout) || | |
5087 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
5088 | cur_params.dot11MeshHWMPactivePathTimeout) || | |
5089 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
5090 | cur_params.dot11MeshHWMPpreqMinInterval) || | |
5091 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
5092 | cur_params.dot11MeshHWMPperrMinInterval) || | |
5093 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
5094 | cur_params.dot11MeshHWMPnetDiameterTraversalTime) || | |
5095 | nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, | |
5096 | cur_params.dot11MeshHWMPRootMode) || | |
5097 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
5098 | cur_params.dot11MeshHWMPRannInterval) || | |
5099 | nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
5100 | cur_params.dot11MeshGateAnnouncementProtocol) || | |
5101 | nla_put_u8(msg, NL80211_MESHCONF_FORWARDING, | |
5102 | cur_params.dot11MeshForwarding) || | |
5103 | nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD, | |
70c33eaa AN |
5104 | cur_params.rssi_threshold) || |
5105 | nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE, | |
ac1073a6 CYY |
5106 | cur_params.ht_opmode) || |
5107 | nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, | |
5108 | cur_params.dot11MeshHWMPactivePathToRootTimeout) || | |
5109 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, | |
728b19e5 CYY |
5110 | cur_params.dot11MeshHWMProotInterval) || |
5111 | nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, | |
3b1c5a53 MP |
5112 | cur_params.dot11MeshHWMPconfirmationInterval) || |
5113 | nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE, | |
5114 | cur_params.power_mode) || | |
5115 | nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW, | |
8e7c0538 CT |
5116 | cur_params.dot11MeshAwakeWindowDuration) || |
5117 | nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT, | |
5118 | cur_params.plink_timeout)) | |
9360ffd1 | 5119 | goto nla_put_failure; |
93da9cc1 | 5120 | nla_nest_end(msg, pinfoattr); |
5121 | genlmsg_end(msg, hdr); | |
4c476991 | 5122 | return genlmsg_reply(msg, info); |
93da9cc1 | 5123 | |
3b85875a | 5124 | nla_put_failure: |
93da9cc1 | 5125 | genlmsg_cancel(msg, hdr); |
efe1cf0c | 5126 | out: |
d080e275 | 5127 | nlmsg_free(msg); |
4c476991 | 5128 | return -ENOBUFS; |
93da9cc1 | 5129 | } |
5130 | ||
b54452b0 | 5131 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 5132 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
5133 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
5134 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
5135 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
5136 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
5137 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
45904f21 | 5138 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, |
93da9cc1 | 5139 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, |
d299a1f2 | 5140 | [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 }, |
93da9cc1 | 5141 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, |
5142 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
5143 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
5144 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
5145 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
dca7e943 | 5146 | [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 }, |
93da9cc1 | 5147 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, |
699403db | 5148 | [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 }, |
0507e159 | 5149 | [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 }, |
16dd7267 | 5150 | [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 }, |
94f90656 | 5151 | [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 }, |
a4f606ea CYY |
5152 | [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 }, |
5153 | [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 }, | |
ac1073a6 CYY |
5154 | [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 }, |
5155 | [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 }, | |
728b19e5 | 5156 | [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 }, |
3b1c5a53 MP |
5157 | [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 }, |
5158 | [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 }, | |
8e7c0538 | 5159 | [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 }, |
93da9cc1 | 5160 | }; |
5161 | ||
c80d545d JC |
5162 | static const struct nla_policy |
5163 | nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = { | |
d299a1f2 | 5164 | [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 }, |
c80d545d JC |
5165 | [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 }, |
5166 | [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 }, | |
15d5dda6 | 5167 | [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG }, |
6e16d90b | 5168 | [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 }, |
bb2798d4 | 5169 | [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG }, |
581a8b0f | 5170 | [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY, |
a4f606ea | 5171 | .len = IEEE80211_MAX_DATA_LEN }, |
b130e5ce | 5172 | [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG }, |
c80d545d JC |
5173 | }; |
5174 | ||
24bdd9f4 | 5175 | static int nl80211_parse_mesh_config(struct genl_info *info, |
bd90fdcc JB |
5176 | struct mesh_config *cfg, |
5177 | u32 *mask_out) | |
93da9cc1 | 5178 | { |
93da9cc1 | 5179 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
bd90fdcc | 5180 | u32 mask = 0; |
93da9cc1 | 5181 | |
ea54fba2 MP |
5182 | #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \ |
5183 | do { \ | |
5184 | if (tb[attr]) { \ | |
5185 | if (fn(tb[attr]) < min || fn(tb[attr]) > max) \ | |
5186 | return -EINVAL; \ | |
5187 | cfg->param = fn(tb[attr]); \ | |
5188 | mask |= (1 << (attr - 1)); \ | |
5189 | } \ | |
5190 | } while (0) | |
bd90fdcc JB |
5191 | |
5192 | ||
24bdd9f4 | 5193 | if (!info->attrs[NL80211_ATTR_MESH_CONFIG]) |
93da9cc1 | 5194 | return -EINVAL; |
5195 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
24bdd9f4 | 5196 | info->attrs[NL80211_ATTR_MESH_CONFIG], |
bd90fdcc | 5197 | nl80211_meshconf_params_policy)) |
93da9cc1 | 5198 | return -EINVAL; |
5199 | ||
93da9cc1 | 5200 | /* This makes sure that there aren't more than 32 mesh config |
5201 | * parameters (otherwise our bitfield scheme would not work.) */ | |
5202 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
5203 | ||
5204 | /* Fill in the params struct */ | |
ea54fba2 | 5205 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255, |
a4f606ea CYY |
5206 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, |
5207 | nla_get_u16); | |
ea54fba2 | 5208 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255, |
a4f606ea CYY |
5209 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, |
5210 | nla_get_u16); | |
ea54fba2 | 5211 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255, |
a4f606ea CYY |
5212 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, |
5213 | nla_get_u16); | |
ea54fba2 | 5214 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255, |
a4f606ea CYY |
5215 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, |
5216 | nla_get_u16); | |
ea54fba2 | 5217 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16, |
a4f606ea CYY |
5218 | mask, NL80211_MESHCONF_MAX_RETRIES, |
5219 | nla_get_u8); | |
ea54fba2 | 5220 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255, |
a4f606ea | 5221 | mask, NL80211_MESHCONF_TTL, nla_get_u8); |
ea54fba2 | 5222 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255, |
a4f606ea CYY |
5223 | mask, NL80211_MESHCONF_ELEMENT_TTL, |
5224 | nla_get_u8); | |
ea54fba2 | 5225 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1, |
a4f606ea CYY |
5226 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
5227 | nla_get_u8); | |
ea54fba2 MP |
5228 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, |
5229 | 1, 255, mask, | |
a4f606ea CYY |
5230 | NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, |
5231 | nla_get_u32); | |
ea54fba2 | 5232 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255, |
a4f606ea CYY |
5233 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, |
5234 | nla_get_u8); | |
ea54fba2 | 5235 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535, |
a4f606ea CYY |
5236 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, |
5237 | nla_get_u32); | |
ea54fba2 | 5238 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535, |
a4f606ea CYY |
5239 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, |
5240 | nla_get_u16); | |
ea54fba2 MP |
5241 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, |
5242 | 1, 65535, mask, | |
a4f606ea CYY |
5243 | NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, |
5244 | nla_get_u32); | |
93da9cc1 | 5245 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, |
ea54fba2 MP |
5246 | 1, 65535, mask, |
5247 | NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
a4f606ea | 5248 | nla_get_u16); |
dca7e943 | 5249 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval, |
ea54fba2 MP |
5250 | 1, 65535, mask, |
5251 | NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, | |
a4f606ea | 5252 | nla_get_u16); |
93da9cc1 | 5253 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
ea54fba2 MP |
5254 | dot11MeshHWMPnetDiameterTraversalTime, |
5255 | 1, 65535, mask, | |
a4f606ea CYY |
5256 | NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
5257 | nla_get_u16); | |
ea54fba2 MP |
5258 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4, |
5259 | mask, NL80211_MESHCONF_HWMP_ROOTMODE, | |
5260 | nla_get_u8); | |
5261 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535, | |
5262 | mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL, | |
a4f606ea | 5263 | nla_get_u16); |
63c5723b | 5264 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
ea54fba2 MP |
5265 | dot11MeshGateAnnouncementProtocol, 0, 1, |
5266 | mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS, | |
a4f606ea | 5267 | nla_get_u8); |
ea54fba2 | 5268 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1, |
a4f606ea CYY |
5269 | mask, NL80211_MESHCONF_FORWARDING, |
5270 | nla_get_u8); | |
83374fe9 | 5271 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0, |
a4f606ea | 5272 | mask, NL80211_MESHCONF_RSSI_THRESHOLD, |
83374fe9 | 5273 | nla_get_s32); |
ea54fba2 | 5274 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16, |
a4f606ea | 5275 | mask, NL80211_MESHCONF_HT_OPMODE, |
ac1073a6 CYY |
5276 | nla_get_u16); |
5277 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout, | |
ea54fba2 | 5278 | 1, 65535, mask, |
ac1073a6 CYY |
5279 | NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, |
5280 | nla_get_u32); | |
ea54fba2 | 5281 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535, |
ac1073a6 | 5282 | mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL, |
728b19e5 CYY |
5283 | nla_get_u16); |
5284 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
ea54fba2 MP |
5285 | dot11MeshHWMPconfirmationInterval, |
5286 | 1, 65535, mask, | |
728b19e5 | 5287 | NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, |
a4f606ea | 5288 | nla_get_u16); |
3b1c5a53 MP |
5289 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode, |
5290 | NL80211_MESH_POWER_ACTIVE, | |
5291 | NL80211_MESH_POWER_MAX, | |
5292 | mask, NL80211_MESHCONF_POWER_MODE, | |
5293 | nla_get_u32); | |
5294 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration, | |
5295 | 0, 65535, mask, | |
5296 | NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16); | |
31f909a2 | 5297 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff, |
8e7c0538 CT |
5298 | mask, NL80211_MESHCONF_PLINK_TIMEOUT, |
5299 | nla_get_u32); | |
bd90fdcc JB |
5300 | if (mask_out) |
5301 | *mask_out = mask; | |
c80d545d | 5302 | |
bd90fdcc JB |
5303 | return 0; |
5304 | ||
5305 | #undef FILL_IN_MESH_PARAM_IF_SET | |
5306 | } | |
5307 | ||
c80d545d JC |
5308 | static int nl80211_parse_mesh_setup(struct genl_info *info, |
5309 | struct mesh_setup *setup) | |
5310 | { | |
bb2798d4 | 5311 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
c80d545d JC |
5312 | struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1]; |
5313 | ||
5314 | if (!info->attrs[NL80211_ATTR_MESH_SETUP]) | |
5315 | return -EINVAL; | |
5316 | if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX, | |
5317 | info->attrs[NL80211_ATTR_MESH_SETUP], | |
5318 | nl80211_mesh_setup_params_policy)) | |
5319 | return -EINVAL; | |
5320 | ||
d299a1f2 JC |
5321 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC]) |
5322 | setup->sync_method = | |
5323 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ? | |
5324 | IEEE80211_SYNC_METHOD_VENDOR : | |
5325 | IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET; | |
5326 | ||
c80d545d JC |
5327 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL]) |
5328 | setup->path_sel_proto = | |
5329 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ? | |
5330 | IEEE80211_PATH_PROTOCOL_VENDOR : | |
5331 | IEEE80211_PATH_PROTOCOL_HWMP; | |
5332 | ||
5333 | if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC]) | |
5334 | setup->path_metric = | |
5335 | (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ? | |
5336 | IEEE80211_PATH_METRIC_VENDOR : | |
5337 | IEEE80211_PATH_METRIC_AIRTIME; | |
5338 | ||
581a8b0f JC |
5339 | |
5340 | if (tb[NL80211_MESH_SETUP_IE]) { | |
c80d545d | 5341 | struct nlattr *ieattr = |
581a8b0f | 5342 | tb[NL80211_MESH_SETUP_IE]; |
c80d545d JC |
5343 | if (!is_valid_ie_attr(ieattr)) |
5344 | return -EINVAL; | |
581a8b0f JC |
5345 | setup->ie = nla_data(ieattr); |
5346 | setup->ie_len = nla_len(ieattr); | |
c80d545d | 5347 | } |
bb2798d4 TP |
5348 | if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] && |
5349 | !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM)) | |
5350 | return -EINVAL; | |
5351 | setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]); | |
b130e5ce JC |
5352 | setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]); |
5353 | setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]); | |
bb2798d4 TP |
5354 | if (setup->is_secure) |
5355 | setup->user_mpm = true; | |
c80d545d | 5356 | |
6e16d90b CT |
5357 | if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) { |
5358 | if (!setup->user_mpm) | |
5359 | return -EINVAL; | |
5360 | setup->auth_id = | |
5361 | nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]); | |
5362 | } | |
5363 | ||
c80d545d JC |
5364 | return 0; |
5365 | } | |
5366 | ||
24bdd9f4 | 5367 | static int nl80211_update_mesh_config(struct sk_buff *skb, |
29cbe68c | 5368 | struct genl_info *info) |
bd90fdcc JB |
5369 | { |
5370 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
5371 | struct net_device *dev = info->user_ptr[1]; | |
29cbe68c | 5372 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bd90fdcc JB |
5373 | struct mesh_config cfg; |
5374 | u32 mask; | |
5375 | int err; | |
5376 | ||
29cbe68c JB |
5377 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
5378 | return -EOPNOTSUPP; | |
5379 | ||
24bdd9f4 | 5380 | if (!rdev->ops->update_mesh_config) |
bd90fdcc JB |
5381 | return -EOPNOTSUPP; |
5382 | ||
24bdd9f4 | 5383 | err = nl80211_parse_mesh_config(info, &cfg, &mask); |
bd90fdcc JB |
5384 | if (err) |
5385 | return err; | |
5386 | ||
29cbe68c JB |
5387 | wdev_lock(wdev); |
5388 | if (!wdev->mesh_id_len) | |
5389 | err = -ENOLINK; | |
5390 | ||
5391 | if (!err) | |
e35e4d28 | 5392 | err = rdev_update_mesh_config(rdev, dev, mask, &cfg); |
29cbe68c JB |
5393 | |
5394 | wdev_unlock(wdev); | |
5395 | ||
5396 | return err; | |
93da9cc1 | 5397 | } |
5398 | ||
ad30ca2c AN |
5399 | static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom, |
5400 | struct sk_buff *msg) | |
f130347c | 5401 | { |
f130347c LR |
5402 | struct nlattr *nl_reg_rules; |
5403 | unsigned int i; | |
f130347c | 5404 | |
458f4f9e JB |
5405 | if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) || |
5406 | (regdom->dfs_region && | |
5407 | nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region))) | |
ad30ca2c | 5408 | goto nla_put_failure; |
458f4f9e | 5409 | |
f130347c LR |
5410 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); |
5411 | if (!nl_reg_rules) | |
ad30ca2c | 5412 | goto nla_put_failure; |
f130347c | 5413 | |
458f4f9e | 5414 | for (i = 0; i < regdom->n_reg_rules; i++) { |
f130347c LR |
5415 | struct nlattr *nl_reg_rule; |
5416 | const struct ieee80211_reg_rule *reg_rule; | |
5417 | const struct ieee80211_freq_range *freq_range; | |
5418 | const struct ieee80211_power_rule *power_rule; | |
97524820 | 5419 | unsigned int max_bandwidth_khz; |
f130347c | 5420 | |
458f4f9e | 5421 | reg_rule = ®dom->reg_rules[i]; |
f130347c LR |
5422 | freq_range = ®_rule->freq_range; |
5423 | power_rule = ®_rule->power_rule; | |
5424 | ||
5425 | nl_reg_rule = nla_nest_start(msg, i); | |
5426 | if (!nl_reg_rule) | |
ad30ca2c | 5427 | goto nla_put_failure; |
f130347c | 5428 | |
97524820 JD |
5429 | max_bandwidth_khz = freq_range->max_bandwidth_khz; |
5430 | if (!max_bandwidth_khz) | |
5431 | max_bandwidth_khz = reg_get_max_bandwidth(regdom, | |
5432 | reg_rule); | |
5433 | ||
9360ffd1 DM |
5434 | if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, |
5435 | reg_rule->flags) || | |
5436 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
5437 | freq_range->start_freq_khz) || | |
5438 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
5439 | freq_range->end_freq_khz) || | |
5440 | nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
97524820 | 5441 | max_bandwidth_khz) || |
9360ffd1 DM |
5442 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, |
5443 | power_rule->max_antenna_gain) || | |
5444 | nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
089027e5 JD |
5445 | power_rule->max_eirp) || |
5446 | nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME, | |
5447 | reg_rule->dfs_cac_ms)) | |
ad30ca2c | 5448 | goto nla_put_failure; |
f130347c LR |
5449 | |
5450 | nla_nest_end(msg, nl_reg_rule); | |
5451 | } | |
5452 | ||
5453 | nla_nest_end(msg, nl_reg_rules); | |
ad30ca2c AN |
5454 | return 0; |
5455 | ||
5456 | nla_put_failure: | |
5457 | return -EMSGSIZE; | |
5458 | } | |
5459 | ||
5460 | static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info) | |
5461 | { | |
5462 | const struct ieee80211_regdomain *regdom = NULL; | |
5463 | struct cfg80211_registered_device *rdev; | |
5464 | struct wiphy *wiphy = NULL; | |
5465 | struct sk_buff *msg; | |
5466 | void *hdr; | |
5467 | ||
5468 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5469 | if (!msg) | |
5470 | return -ENOBUFS; | |
5471 | ||
5472 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
5473 | NL80211_CMD_GET_REG); | |
5474 | if (!hdr) | |
5475 | goto put_failure; | |
5476 | ||
5477 | if (info->attrs[NL80211_ATTR_WIPHY]) { | |
1bdd716c AN |
5478 | bool self_managed; |
5479 | ||
ad30ca2c AN |
5480 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
5481 | if (IS_ERR(rdev)) { | |
5482 | nlmsg_free(msg); | |
5483 | return PTR_ERR(rdev); | |
5484 | } | |
5485 | ||
5486 | wiphy = &rdev->wiphy; | |
1bdd716c AN |
5487 | self_managed = wiphy->regulatory_flags & |
5488 | REGULATORY_WIPHY_SELF_MANAGED; | |
ad30ca2c AN |
5489 | regdom = get_wiphy_regdom(wiphy); |
5490 | ||
1bdd716c AN |
5491 | /* a self-managed-reg device must have a private regdom */ |
5492 | if (WARN_ON(!regdom && self_managed)) { | |
5493 | nlmsg_free(msg); | |
5494 | return -EINVAL; | |
5495 | } | |
5496 | ||
ad30ca2c AN |
5497 | if (regdom && |
5498 | nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) | |
5499 | goto nla_put_failure; | |
5500 | } | |
5501 | ||
5502 | if (!wiphy && reg_last_request_cell_base() && | |
5503 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, | |
5504 | NL80211_USER_REG_HINT_CELL_BASE)) | |
5505 | goto nla_put_failure; | |
5506 | ||
5507 | rcu_read_lock(); | |
5508 | ||
5509 | if (!regdom) | |
5510 | regdom = rcu_dereference(cfg80211_regdomain); | |
5511 | ||
5512 | if (nl80211_put_regdom(regdom, msg)) | |
5513 | goto nla_put_failure_rcu; | |
5514 | ||
5515 | rcu_read_unlock(); | |
f130347c LR |
5516 | |
5517 | genlmsg_end(msg, hdr); | |
5fe231e8 | 5518 | return genlmsg_reply(msg, info); |
f130347c | 5519 | |
458f4f9e JB |
5520 | nla_put_failure_rcu: |
5521 | rcu_read_unlock(); | |
f130347c LR |
5522 | nla_put_failure: |
5523 | genlmsg_cancel(msg, hdr); | |
efe1cf0c | 5524 | put_failure: |
d080e275 | 5525 | nlmsg_free(msg); |
5fe231e8 | 5526 | return -EMSGSIZE; |
f130347c LR |
5527 | } |
5528 | ||
ad30ca2c AN |
5529 | static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb, |
5530 | u32 seq, int flags, struct wiphy *wiphy, | |
5531 | const struct ieee80211_regdomain *regdom) | |
5532 | { | |
5533 | void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, | |
5534 | NL80211_CMD_GET_REG); | |
5535 | ||
5536 | if (!hdr) | |
5537 | return -1; | |
5538 | ||
5539 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); | |
5540 | ||
5541 | if (nl80211_put_regdom(regdom, msg)) | |
5542 | goto nla_put_failure; | |
5543 | ||
5544 | if (!wiphy && reg_last_request_cell_base() && | |
5545 | nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE, | |
5546 | NL80211_USER_REG_HINT_CELL_BASE)) | |
5547 | goto nla_put_failure; | |
5548 | ||
5549 | if (wiphy && | |
5550 | nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) | |
5551 | goto nla_put_failure; | |
5552 | ||
1bdd716c AN |
5553 | if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && |
5554 | nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) | |
5555 | goto nla_put_failure; | |
5556 | ||
053c095a JB |
5557 | genlmsg_end(msg, hdr); |
5558 | return 0; | |
ad30ca2c AN |
5559 | |
5560 | nla_put_failure: | |
5561 | genlmsg_cancel(msg, hdr); | |
5562 | return -EMSGSIZE; | |
5563 | } | |
5564 | ||
5565 | static int nl80211_get_reg_dump(struct sk_buff *skb, | |
5566 | struct netlink_callback *cb) | |
5567 | { | |
5568 | const struct ieee80211_regdomain *regdom = NULL; | |
5569 | struct cfg80211_registered_device *rdev; | |
5570 | int err, reg_idx, start = cb->args[2]; | |
5571 | ||
5572 | rtnl_lock(); | |
5573 | ||
5574 | if (cfg80211_regdomain && start == 0) { | |
5575 | err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq, | |
5576 | NLM_F_MULTI, NULL, | |
5577 | rtnl_dereference(cfg80211_regdomain)); | |
5578 | if (err < 0) | |
5579 | goto out_err; | |
5580 | } | |
5581 | ||
5582 | /* the global regdom is idx 0 */ | |
5583 | reg_idx = 1; | |
5584 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { | |
5585 | regdom = get_wiphy_regdom(&rdev->wiphy); | |
5586 | if (!regdom) | |
5587 | continue; | |
5588 | ||
5589 | if (++reg_idx <= start) | |
5590 | continue; | |
5591 | ||
5592 | err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq, | |
5593 | NLM_F_MULTI, &rdev->wiphy, regdom); | |
5594 | if (err < 0) { | |
5595 | reg_idx--; | |
5596 | break; | |
5597 | } | |
5598 | } | |
5599 | ||
5600 | cb->args[2] = reg_idx; | |
5601 | err = skb->len; | |
5602 | out_err: | |
5603 | rtnl_unlock(); | |
5604 | return err; | |
5605 | } | |
5606 | ||
b6863036 JB |
5607 | #ifdef CONFIG_CFG80211_CRDA_SUPPORT |
5608 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
5609 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
5610 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
5611 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
5612 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
5613 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
5614 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
5615 | [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 }, | |
5616 | }; | |
5617 | ||
5618 | static int parse_reg_rule(struct nlattr *tb[], | |
5619 | struct ieee80211_reg_rule *reg_rule) | |
5620 | { | |
5621 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
5622 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
5623 | ||
5624 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
5625 | return -EINVAL; | |
5626 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
5627 | return -EINVAL; | |
5628 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
5629 | return -EINVAL; | |
5630 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
5631 | return -EINVAL; | |
5632 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
5633 | return -EINVAL; | |
5634 | ||
5635 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
5636 | ||
5637 | freq_range->start_freq_khz = | |
5638 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
5639 | freq_range->end_freq_khz = | |
5640 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
5641 | freq_range->max_bandwidth_khz = | |
5642 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
5643 | ||
5644 | power_rule->max_eirp = | |
5645 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
5646 | ||
5647 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
5648 | power_rule->max_antenna_gain = | |
5649 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
5650 | ||
5651 | if (tb[NL80211_ATTR_DFS_CAC_TIME]) | |
5652 | reg_rule->dfs_cac_ms = | |
5653 | nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]); | |
5654 | ||
5655 | return 0; | |
5656 | } | |
5657 | ||
b2e1b302 LR |
5658 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
5659 | { | |
5660 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
5661 | struct nlattr *nl_reg_rule; | |
ea372c54 JB |
5662 | char *alpha2; |
5663 | int rem_reg_rules, r; | |
b2e1b302 | 5664 | u32 num_rules = 0, rule_idx = 0, size_of_regd; |
4c7d3982 | 5665 | enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET; |
ea372c54 | 5666 | struct ieee80211_regdomain *rd; |
b2e1b302 LR |
5667 | |
5668 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
5669 | return -EINVAL; | |
5670 | ||
5671 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
5672 | return -EINVAL; | |
5673 | ||
5674 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
5675 | ||
8b60b078 LR |
5676 | if (info->attrs[NL80211_ATTR_DFS_REGION]) |
5677 | dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]); | |
5678 | ||
b2e1b302 | 5679 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
1a919318 | 5680 | rem_reg_rules) { |
b2e1b302 LR |
5681 | num_rules++; |
5682 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 5683 | return -EINVAL; |
b2e1b302 LR |
5684 | } |
5685 | ||
e438768f LR |
5686 | if (!reg_is_valid_request(alpha2)) |
5687 | return -EINVAL; | |
5688 | ||
b2e1b302 | 5689 | size_of_regd = sizeof(struct ieee80211_regdomain) + |
1a919318 | 5690 | num_rules * sizeof(struct ieee80211_reg_rule); |
b2e1b302 LR |
5691 | |
5692 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
6913b49a JB |
5693 | if (!rd) |
5694 | return -ENOMEM; | |
b2e1b302 LR |
5695 | |
5696 | rd->n_reg_rules = num_rules; | |
5697 | rd->alpha2[0] = alpha2[0]; | |
5698 | rd->alpha2[1] = alpha2[1]; | |
5699 | ||
8b60b078 LR |
5700 | /* |
5701 | * Disable DFS master mode if the DFS region was | |
5702 | * not supported or known on this kernel. | |
5703 | */ | |
5704 | if (reg_supported_dfs_region(dfs_region)) | |
5705 | rd->dfs_region = dfs_region; | |
5706 | ||
b2e1b302 | 5707 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], |
1a919318 | 5708 | rem_reg_rules) { |
ae811e21 JB |
5709 | r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, |
5710 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
5711 | reg_rule_policy); | |
5712 | if (r) | |
5713 | goto bad_reg; | |
b2e1b302 LR |
5714 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); |
5715 | if (r) | |
5716 | goto bad_reg; | |
5717 | ||
5718 | rule_idx++; | |
5719 | ||
d0e18f83 LR |
5720 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
5721 | r = -EINVAL; | |
b2e1b302 | 5722 | goto bad_reg; |
d0e18f83 | 5723 | } |
b2e1b302 LR |
5724 | } |
5725 | ||
c37722bd | 5726 | r = set_regdom(rd, REGD_SOURCE_CRDA); |
6913b49a | 5727 | /* set_regdom took ownership */ |
1a919318 | 5728 | rd = NULL; |
b2e1b302 | 5729 | |
d2372b31 | 5730 | bad_reg: |
b2e1b302 | 5731 | kfree(rd); |
d0e18f83 | 5732 | return r; |
b2e1b302 | 5733 | } |
b6863036 | 5734 | #endif /* CONFIG_CFG80211_CRDA_SUPPORT */ |
b2e1b302 | 5735 | |
83f5e2cf JB |
5736 | static int validate_scan_freqs(struct nlattr *freqs) |
5737 | { | |
5738 | struct nlattr *attr1, *attr2; | |
5739 | int n_channels = 0, tmp1, tmp2; | |
5740 | ||
5741 | nla_for_each_nested(attr1, freqs, tmp1) { | |
5742 | n_channels++; | |
5743 | /* | |
5744 | * Some hardware has a limited channel list for | |
5745 | * scanning, and it is pretty much nonsensical | |
5746 | * to scan for a channel twice, so disallow that | |
5747 | * and don't require drivers to check that the | |
5748 | * channel list they get isn't longer than what | |
5749 | * they can scan, as long as they can scan all | |
5750 | * the channels they registered at once. | |
5751 | */ | |
5752 | nla_for_each_nested(attr2, freqs, tmp2) | |
5753 | if (attr1 != attr2 && | |
5754 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
5755 | return 0; | |
5756 | } | |
5757 | ||
5758 | return n_channels; | |
5759 | } | |
5760 | ||
ad2b26ab JB |
5761 | static int nl80211_parse_random_mac(struct nlattr **attrs, |
5762 | u8 *mac_addr, u8 *mac_addr_mask) | |
5763 | { | |
5764 | int i; | |
5765 | ||
5766 | if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) { | |
d2beae10 JP |
5767 | eth_zero_addr(mac_addr); |
5768 | eth_zero_addr(mac_addr_mask); | |
ad2b26ab JB |
5769 | mac_addr[0] = 0x2; |
5770 | mac_addr_mask[0] = 0x3; | |
5771 | ||
5772 | return 0; | |
5773 | } | |
5774 | ||
5775 | /* need both or none */ | |
5776 | if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK]) | |
5777 | return -EINVAL; | |
5778 | ||
5779 | memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN); | |
5780 | memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN); | |
5781 | ||
5782 | /* don't allow or configure an mcast address */ | |
5783 | if (!is_multicast_ether_addr(mac_addr_mask) || | |
5784 | is_multicast_ether_addr(mac_addr)) | |
5785 | return -EINVAL; | |
5786 | ||
5787 | /* | |
5788 | * allow users to pass a MAC address that has bits set outside | |
5789 | * of the mask, but don't bother drivers with having to deal | |
5790 | * with such bits | |
5791 | */ | |
5792 | for (i = 0; i < ETH_ALEN; i++) | |
5793 | mac_addr[i] &= mac_addr_mask[i]; | |
5794 | ||
5795 | return 0; | |
5796 | } | |
5797 | ||
2a519311 JB |
5798 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
5799 | { | |
4c476991 | 5800 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fd014284 | 5801 | struct wireless_dev *wdev = info->user_ptr[1]; |
2a519311 | 5802 | struct cfg80211_scan_request *request; |
2a519311 JB |
5803 | struct nlattr *attr; |
5804 | struct wiphy *wiphy; | |
83f5e2cf | 5805 | int err, tmp, n_ssids = 0, n_channels, i; |
70692ad2 | 5806 | size_t ie_len; |
2a519311 | 5807 | |
f4a11bb0 JB |
5808 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
5809 | return -EINVAL; | |
5810 | ||
79c97e97 | 5811 | wiphy = &rdev->wiphy; |
2a519311 | 5812 | |
4c476991 JB |
5813 | if (!rdev->ops->scan) |
5814 | return -EOPNOTSUPP; | |
2a519311 | 5815 | |
f9d15d16 | 5816 | if (rdev->scan_req || rdev->scan_msg) { |
f9f47529 JB |
5817 | err = -EBUSY; |
5818 | goto unlock; | |
5819 | } | |
2a519311 JB |
5820 | |
5821 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
5822 | n_channels = validate_scan_freqs( |
5823 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
f9f47529 JB |
5824 | if (!n_channels) { |
5825 | err = -EINVAL; | |
5826 | goto unlock; | |
5827 | } | |
2a519311 | 5828 | } else { |
bdfbec2d | 5829 | n_channels = ieee80211_get_num_supported_channels(wiphy); |
2a519311 JB |
5830 | } |
5831 | ||
5832 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
5833 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
5834 | n_ssids++; | |
5835 | ||
f9f47529 JB |
5836 | if (n_ssids > wiphy->max_scan_ssids) { |
5837 | err = -EINVAL; | |
5838 | goto unlock; | |
5839 | } | |
2a519311 | 5840 | |
70692ad2 JM |
5841 | if (info->attrs[NL80211_ATTR_IE]) |
5842 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
5843 | else | |
5844 | ie_len = 0; | |
5845 | ||
f9f47529 JB |
5846 | if (ie_len > wiphy->max_scan_ie_len) { |
5847 | err = -EINVAL; | |
5848 | goto unlock; | |
5849 | } | |
18a83659 | 5850 | |
2a519311 | 5851 | request = kzalloc(sizeof(*request) |
a2cd43c5 LC |
5852 | + sizeof(*request->ssids) * n_ssids |
5853 | + sizeof(*request->channels) * n_channels | |
70692ad2 | 5854 | + ie_len, GFP_KERNEL); |
f9f47529 JB |
5855 | if (!request) { |
5856 | err = -ENOMEM; | |
5857 | goto unlock; | |
5858 | } | |
2a519311 | 5859 | |
2a519311 | 5860 | if (n_ssids) |
5ba63533 | 5861 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 5862 | request->n_ssids = n_ssids; |
70692ad2 | 5863 | if (ie_len) { |
13874e4b | 5864 | if (n_ssids) |
70692ad2 JM |
5865 | request->ie = (void *)(request->ssids + n_ssids); |
5866 | else | |
5867 | request->ie = (void *)(request->channels + n_channels); | |
5868 | } | |
2a519311 | 5869 | |
584991dc | 5870 | i = 0; |
2a519311 JB |
5871 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
5872 | /* user specified, bail out if channel not found */ | |
2a519311 | 5873 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
5874 | struct ieee80211_channel *chan; |
5875 | ||
5876 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
5877 | ||
5878 | if (!chan) { | |
2a519311 JB |
5879 | err = -EINVAL; |
5880 | goto out_free; | |
5881 | } | |
584991dc JB |
5882 | |
5883 | /* ignore disabled channels */ | |
5884 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
5885 | continue; | |
5886 | ||
5887 | request->channels[i] = chan; | |
2a519311 JB |
5888 | i++; |
5889 | } | |
5890 | } else { | |
34850ab2 JB |
5891 | enum ieee80211_band band; |
5892 | ||
2a519311 | 5893 | /* all channels */ |
2a519311 JB |
5894 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
5895 | int j; | |
5896 | if (!wiphy->bands[band]) | |
5897 | continue; | |
5898 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
5899 | struct ieee80211_channel *chan; |
5900 | ||
5901 | chan = &wiphy->bands[band]->channels[j]; | |
5902 | ||
5903 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
5904 | continue; | |
5905 | ||
5906 | request->channels[i] = chan; | |
2a519311 JB |
5907 | i++; |
5908 | } | |
5909 | } | |
5910 | } | |
5911 | ||
584991dc JB |
5912 | if (!i) { |
5913 | err = -EINVAL; | |
5914 | goto out_free; | |
5915 | } | |
5916 | ||
5917 | request->n_channels = i; | |
5918 | ||
2a519311 | 5919 | i = 0; |
13874e4b | 5920 | if (n_ssids) { |
2a519311 | 5921 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { |
57a27e1d | 5922 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
2a519311 JB |
5923 | err = -EINVAL; |
5924 | goto out_free; | |
5925 | } | |
57a27e1d | 5926 | request->ssids[i].ssid_len = nla_len(attr); |
2a519311 | 5927 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); |
2a519311 JB |
5928 | i++; |
5929 | } | |
5930 | } | |
5931 | ||
70692ad2 JM |
5932 | if (info->attrs[NL80211_ATTR_IE]) { |
5933 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
5934 | memcpy((void *)request->ie, |
5935 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
5936 | request->ie_len); |
5937 | } | |
5938 | ||
34850ab2 | 5939 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) |
a401d2bb JB |
5940 | if (wiphy->bands[i]) |
5941 | request->rates[i] = | |
5942 | (1 << wiphy->bands[i]->n_bitrates) - 1; | |
34850ab2 JB |
5943 | |
5944 | if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) { | |
5945 | nla_for_each_nested(attr, | |
5946 | info->attrs[NL80211_ATTR_SCAN_SUPP_RATES], | |
5947 | tmp) { | |
5948 | enum ieee80211_band band = nla_type(attr); | |
5949 | ||
84404623 | 5950 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { |
34850ab2 JB |
5951 | err = -EINVAL; |
5952 | goto out_free; | |
5953 | } | |
1b09cd82 FF |
5954 | |
5955 | if (!wiphy->bands[band]) | |
5956 | continue; | |
5957 | ||
34850ab2 JB |
5958 | err = ieee80211_get_ratemask(wiphy->bands[band], |
5959 | nla_data(attr), | |
5960 | nla_len(attr), | |
5961 | &request->rates[band]); | |
5962 | if (err) | |
5963 | goto out_free; | |
5964 | } | |
5965 | } | |
5966 | ||
46856bbf | 5967 | if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { |
ed473771 SL |
5968 | request->flags = nla_get_u32( |
5969 | info->attrs[NL80211_ATTR_SCAN_FLAGS]); | |
00c3a6ed JB |
5970 | if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
5971 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { | |
46856bbf SL |
5972 | err = -EOPNOTSUPP; |
5973 | goto out_free; | |
5974 | } | |
ad2b26ab JB |
5975 | |
5976 | if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { | |
5977 | if (!(wiphy->features & | |
5978 | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) { | |
5979 | err = -EOPNOTSUPP; | |
5980 | goto out_free; | |
5981 | } | |
5982 | ||
5983 | if (wdev->current_bss) { | |
5984 | err = -EOPNOTSUPP; | |
5985 | goto out_free; | |
5986 | } | |
5987 | ||
5988 | err = nl80211_parse_random_mac(info->attrs, | |
5989 | request->mac_addr, | |
5990 | request->mac_addr_mask); | |
5991 | if (err) | |
5992 | goto out_free; | |
5993 | } | |
46856bbf | 5994 | } |
ed473771 | 5995 | |
e9f935e3 RM |
5996 | request->no_cck = |
5997 | nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); | |
5998 | ||
fd014284 | 5999 | request->wdev = wdev; |
79c97e97 | 6000 | request->wiphy = &rdev->wiphy; |
15d6030b | 6001 | request->scan_start = jiffies; |
2a519311 | 6002 | |
79c97e97 | 6003 | rdev->scan_req = request; |
e35e4d28 | 6004 | err = rdev_scan(rdev, request); |
2a519311 | 6005 | |
463d0183 | 6006 | if (!err) { |
fd014284 JB |
6007 | nl80211_send_scan_start(rdev, wdev); |
6008 | if (wdev->netdev) | |
6009 | dev_hold(wdev->netdev); | |
4c476991 | 6010 | } else { |
2a519311 | 6011 | out_free: |
79c97e97 | 6012 | rdev->scan_req = NULL; |
2a519311 JB |
6013 | kfree(request); |
6014 | } | |
3b85875a | 6015 | |
f9f47529 | 6016 | unlock: |
2a519311 JB |
6017 | return err; |
6018 | } | |
6019 | ||
91d3ab46 VK |
6020 | static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info) |
6021 | { | |
6022 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6023 | struct wireless_dev *wdev = info->user_ptr[1]; | |
6024 | ||
6025 | if (!rdev->ops->abort_scan) | |
6026 | return -EOPNOTSUPP; | |
6027 | ||
6028 | if (rdev->scan_msg) | |
6029 | return 0; | |
6030 | ||
6031 | if (!rdev->scan_req) | |
6032 | return -ENOENT; | |
6033 | ||
6034 | rdev_abort_scan(rdev, wdev); | |
6035 | return 0; | |
6036 | } | |
6037 | ||
3b06d277 AS |
6038 | static int |
6039 | nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans, | |
6040 | struct cfg80211_sched_scan_request *request, | |
6041 | struct nlattr **attrs) | |
6042 | { | |
6043 | int tmp, err, i = 0; | |
6044 | struct nlattr *attr; | |
6045 | ||
6046 | if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) { | |
6047 | u32 interval; | |
6048 | ||
6049 | /* | |
6050 | * If scan plans are not specified, | |
6051 | * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this | |
6052 | * case one scan plan will be set with the specified scan | |
6053 | * interval and infinite number of iterations. | |
6054 | */ | |
6055 | if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) | |
6056 | return -EINVAL; | |
6057 | ||
6058 | interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); | |
6059 | if (!interval) | |
6060 | return -EINVAL; | |
6061 | ||
6062 | request->scan_plans[0].interval = | |
6063 | DIV_ROUND_UP(interval, MSEC_PER_SEC); | |
6064 | if (!request->scan_plans[0].interval) | |
6065 | return -EINVAL; | |
6066 | ||
6067 | if (request->scan_plans[0].interval > | |
6068 | wiphy->max_sched_scan_plan_interval) | |
6069 | request->scan_plans[0].interval = | |
6070 | wiphy->max_sched_scan_plan_interval; | |
6071 | ||
6072 | return 0; | |
6073 | } | |
6074 | ||
6075 | nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) { | |
6076 | struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1]; | |
6077 | ||
6078 | if (WARN_ON(i >= n_plans)) | |
6079 | return -EINVAL; | |
6080 | ||
6081 | err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX, | |
6082 | nla_data(attr), nla_len(attr), | |
6083 | nl80211_plan_policy); | |
6084 | if (err) | |
6085 | return err; | |
6086 | ||
6087 | if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]) | |
6088 | return -EINVAL; | |
6089 | ||
6090 | request->scan_plans[i].interval = | |
6091 | nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]); | |
6092 | if (!request->scan_plans[i].interval || | |
6093 | request->scan_plans[i].interval > | |
6094 | wiphy->max_sched_scan_plan_interval) | |
6095 | return -EINVAL; | |
6096 | ||
6097 | if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) { | |
6098 | request->scan_plans[i].iterations = | |
6099 | nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]); | |
6100 | if (!request->scan_plans[i].iterations || | |
6101 | (request->scan_plans[i].iterations > | |
6102 | wiphy->max_sched_scan_plan_iterations)) | |
6103 | return -EINVAL; | |
6104 | } else if (i < n_plans - 1) { | |
6105 | /* | |
6106 | * All scan plans but the last one must specify | |
6107 | * a finite number of iterations | |
6108 | */ | |
6109 | return -EINVAL; | |
6110 | } | |
6111 | ||
6112 | i++; | |
6113 | } | |
6114 | ||
6115 | /* | |
6116 | * The last scan plan must not specify the number of | |
6117 | * iterations, it is supposed to run infinitely | |
6118 | */ | |
6119 | if (request->scan_plans[n_plans - 1].iterations) | |
6120 | return -EINVAL; | |
6121 | ||
6122 | return 0; | |
6123 | } | |
6124 | ||
256da02d | 6125 | static struct cfg80211_sched_scan_request * |
ad2b26ab | 6126 | nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, |
256da02d | 6127 | struct nlattr **attrs) |
807f8a8c LC |
6128 | { |
6129 | struct cfg80211_sched_scan_request *request; | |
807f8a8c | 6130 | struct nlattr *attr; |
3b06d277 | 6131 | int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0; |
807f8a8c LC |
6132 | enum ieee80211_band band; |
6133 | size_t ie_len; | |
a1f1c21c | 6134 | struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; |
ea73cbce | 6135 | s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF; |
807f8a8c | 6136 | |
256da02d LC |
6137 | if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE])) |
6138 | return ERR_PTR(-EINVAL); | |
807f8a8c | 6139 | |
256da02d | 6140 | if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
807f8a8c | 6141 | n_channels = validate_scan_freqs( |
256da02d | 6142 | attrs[NL80211_ATTR_SCAN_FREQUENCIES]); |
807f8a8c | 6143 | if (!n_channels) |
256da02d | 6144 | return ERR_PTR(-EINVAL); |
807f8a8c | 6145 | } else { |
bdfbec2d | 6146 | n_channels = ieee80211_get_num_supported_channels(wiphy); |
807f8a8c LC |
6147 | } |
6148 | ||
256da02d LC |
6149 | if (attrs[NL80211_ATTR_SCAN_SSIDS]) |
6150 | nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS], | |
807f8a8c LC |
6151 | tmp) |
6152 | n_ssids++; | |
6153 | ||
93b6aa69 | 6154 | if (n_ssids > wiphy->max_sched_scan_ssids) |
256da02d | 6155 | return ERR_PTR(-EINVAL); |
807f8a8c | 6156 | |
ea73cbce JB |
6157 | /* |
6158 | * First, count the number of 'real' matchsets. Due to an issue with | |
6159 | * the old implementation, matchsets containing only the RSSI attribute | |
6160 | * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default' | |
6161 | * RSSI for all matchsets, rather than their own matchset for reporting | |
6162 | * all APs with a strong RSSI. This is needed to be compatible with | |
6163 | * older userspace that treated a matchset with only the RSSI as the | |
6164 | * global RSSI for all other matchsets - if there are other matchsets. | |
6165 | */ | |
256da02d | 6166 | if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { |
a1f1c21c | 6167 | nla_for_each_nested(attr, |
256da02d | 6168 | attrs[NL80211_ATTR_SCHED_SCAN_MATCH], |
ea73cbce JB |
6169 | tmp) { |
6170 | struct nlattr *rssi; | |
6171 | ||
6172 | err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, | |
6173 | nla_data(attr), nla_len(attr), | |
6174 | nl80211_match_policy); | |
6175 | if (err) | |
256da02d | 6176 | return ERR_PTR(err); |
ea73cbce JB |
6177 | /* add other standalone attributes here */ |
6178 | if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) { | |
6179 | n_match_sets++; | |
6180 | continue; | |
6181 | } | |
6182 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; | |
6183 | if (rssi) | |
6184 | default_match_rssi = nla_get_s32(rssi); | |
6185 | } | |
6186 | } | |
6187 | ||
6188 | /* However, if there's no other matchset, add the RSSI one */ | |
6189 | if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF) | |
6190 | n_match_sets = 1; | |
a1f1c21c LC |
6191 | |
6192 | if (n_match_sets > wiphy->max_match_sets) | |
256da02d | 6193 | return ERR_PTR(-EINVAL); |
a1f1c21c | 6194 | |
256da02d LC |
6195 | if (attrs[NL80211_ATTR_IE]) |
6196 | ie_len = nla_len(attrs[NL80211_ATTR_IE]); | |
807f8a8c LC |
6197 | else |
6198 | ie_len = 0; | |
6199 | ||
5a865bad | 6200 | if (ie_len > wiphy->max_sched_scan_ie_len) |
256da02d | 6201 | return ERR_PTR(-EINVAL); |
c10841ca | 6202 | |
3b06d277 AS |
6203 | if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) { |
6204 | /* | |
6205 | * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since | |
6206 | * each scan plan already specifies its own interval | |
6207 | */ | |
6208 | if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) | |
6209 | return ERR_PTR(-EINVAL); | |
6210 | ||
6211 | nla_for_each_nested(attr, | |
6212 | attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) | |
6213 | n_plans++; | |
6214 | } else { | |
6215 | /* | |
6216 | * The scan interval attribute is kept for backward | |
6217 | * compatibility. If no scan plans are specified and sched scan | |
6218 | * interval is specified, one scan plan will be set with this | |
6219 | * scan interval and infinite number of iterations. | |
6220 | */ | |
6221 | if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) | |
6222 | return ERR_PTR(-EINVAL); | |
6223 | ||
6224 | n_plans = 1; | |
6225 | } | |
6226 | ||
6227 | if (!n_plans || n_plans > wiphy->max_sched_scan_plans) | |
6228 | return ERR_PTR(-EINVAL); | |
6229 | ||
807f8a8c | 6230 | request = kzalloc(sizeof(*request) |
a2cd43c5 | 6231 | + sizeof(*request->ssids) * n_ssids |
a1f1c21c | 6232 | + sizeof(*request->match_sets) * n_match_sets |
3b06d277 | 6233 | + sizeof(*request->scan_plans) * n_plans |
a2cd43c5 | 6234 | + sizeof(*request->channels) * n_channels |
807f8a8c | 6235 | + ie_len, GFP_KERNEL); |
256da02d LC |
6236 | if (!request) |
6237 | return ERR_PTR(-ENOMEM); | |
807f8a8c LC |
6238 | |
6239 | if (n_ssids) | |
6240 | request->ssids = (void *)&request->channels[n_channels]; | |
6241 | request->n_ssids = n_ssids; | |
6242 | if (ie_len) { | |
13874e4b | 6243 | if (n_ssids) |
807f8a8c LC |
6244 | request->ie = (void *)(request->ssids + n_ssids); |
6245 | else | |
6246 | request->ie = (void *)(request->channels + n_channels); | |
6247 | } | |
6248 | ||
a1f1c21c LC |
6249 | if (n_match_sets) { |
6250 | if (request->ie) | |
6251 | request->match_sets = (void *)(request->ie + ie_len); | |
13874e4b | 6252 | else if (n_ssids) |
a1f1c21c LC |
6253 | request->match_sets = |
6254 | (void *)(request->ssids + n_ssids); | |
6255 | else | |
6256 | request->match_sets = | |
6257 | (void *)(request->channels + n_channels); | |
6258 | } | |
6259 | request->n_match_sets = n_match_sets; | |
6260 | ||
3b06d277 AS |
6261 | if (n_match_sets) |
6262 | request->scan_plans = (void *)(request->match_sets + | |
6263 | n_match_sets); | |
6264 | else if (request->ie) | |
6265 | request->scan_plans = (void *)(request->ie + ie_len); | |
6266 | else if (n_ssids) | |
6267 | request->scan_plans = (void *)(request->ssids + n_ssids); | |
6268 | else | |
6269 | request->scan_plans = (void *)(request->channels + n_channels); | |
6270 | ||
6271 | request->n_scan_plans = n_plans; | |
6272 | ||
807f8a8c | 6273 | i = 0; |
256da02d | 6274 | if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
807f8a8c LC |
6275 | /* user specified, bail out if channel not found */ |
6276 | nla_for_each_nested(attr, | |
256da02d | 6277 | attrs[NL80211_ATTR_SCAN_FREQUENCIES], |
807f8a8c LC |
6278 | tmp) { |
6279 | struct ieee80211_channel *chan; | |
6280 | ||
6281 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
6282 | ||
6283 | if (!chan) { | |
6284 | err = -EINVAL; | |
6285 | goto out_free; | |
6286 | } | |
6287 | ||
6288 | /* ignore disabled channels */ | |
6289 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
6290 | continue; | |
6291 | ||
6292 | request->channels[i] = chan; | |
6293 | i++; | |
6294 | } | |
6295 | } else { | |
6296 | /* all channels */ | |
6297 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
6298 | int j; | |
6299 | if (!wiphy->bands[band]) | |
6300 | continue; | |
6301 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
6302 | struct ieee80211_channel *chan; | |
6303 | ||
6304 | chan = &wiphy->bands[band]->channels[j]; | |
6305 | ||
6306 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
6307 | continue; | |
6308 | ||
6309 | request->channels[i] = chan; | |
6310 | i++; | |
6311 | } | |
6312 | } | |
6313 | } | |
6314 | ||
6315 | if (!i) { | |
6316 | err = -EINVAL; | |
6317 | goto out_free; | |
6318 | } | |
6319 | ||
6320 | request->n_channels = i; | |
6321 | ||
6322 | i = 0; | |
13874e4b | 6323 | if (n_ssids) { |
256da02d | 6324 | nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS], |
807f8a8c | 6325 | tmp) { |
57a27e1d | 6326 | if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { |
807f8a8c LC |
6327 | err = -EINVAL; |
6328 | goto out_free; | |
6329 | } | |
57a27e1d | 6330 | request->ssids[i].ssid_len = nla_len(attr); |
807f8a8c LC |
6331 | memcpy(request->ssids[i].ssid, nla_data(attr), |
6332 | nla_len(attr)); | |
807f8a8c LC |
6333 | i++; |
6334 | } | |
6335 | } | |
6336 | ||
a1f1c21c | 6337 | i = 0; |
256da02d | 6338 | if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { |
a1f1c21c | 6339 | nla_for_each_nested(attr, |
256da02d | 6340 | attrs[NL80211_ATTR_SCHED_SCAN_MATCH], |
a1f1c21c | 6341 | tmp) { |
88e920b4 | 6342 | struct nlattr *ssid, *rssi; |
a1f1c21c | 6343 | |
ae811e21 JB |
6344 | err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, |
6345 | nla_data(attr), nla_len(attr), | |
6346 | nl80211_match_policy); | |
6347 | if (err) | |
6348 | goto out_free; | |
4a4ab0d7 | 6349 | ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; |
a1f1c21c | 6350 | if (ssid) { |
ea73cbce JB |
6351 | if (WARN_ON(i >= n_match_sets)) { |
6352 | /* this indicates a programming error, | |
6353 | * the loop above should have verified | |
6354 | * things properly | |
6355 | */ | |
6356 | err = -EINVAL; | |
6357 | goto out_free; | |
6358 | } | |
6359 | ||
a1f1c21c LC |
6360 | if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { |
6361 | err = -EINVAL; | |
6362 | goto out_free; | |
6363 | } | |
6364 | memcpy(request->match_sets[i].ssid.ssid, | |
6365 | nla_data(ssid), nla_len(ssid)); | |
6366 | request->match_sets[i].ssid.ssid_len = | |
6367 | nla_len(ssid); | |
ea73cbce JB |
6368 | /* special attribute - old implemenation w/a */ |
6369 | request->match_sets[i].rssi_thold = | |
6370 | default_match_rssi; | |
6371 | rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; | |
6372 | if (rssi) | |
6373 | request->match_sets[i].rssi_thold = | |
6374 | nla_get_s32(rssi); | |
a1f1c21c LC |
6375 | } |
6376 | i++; | |
6377 | } | |
ea73cbce JB |
6378 | |
6379 | /* there was no other matchset, so the RSSI one is alone */ | |
f89f46cf | 6380 | if (i == 0 && n_match_sets) |
ea73cbce JB |
6381 | request->match_sets[0].rssi_thold = default_match_rssi; |
6382 | ||
6383 | request->min_rssi_thold = INT_MAX; | |
6384 | for (i = 0; i < n_match_sets; i++) | |
6385 | request->min_rssi_thold = | |
6386 | min(request->match_sets[i].rssi_thold, | |
6387 | request->min_rssi_thold); | |
6388 | } else { | |
6389 | request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF; | |
a1f1c21c LC |
6390 | } |
6391 | ||
9900e484 JB |
6392 | if (ie_len) { |
6393 | request->ie_len = ie_len; | |
807f8a8c | 6394 | memcpy((void *)request->ie, |
256da02d | 6395 | nla_data(attrs[NL80211_ATTR_IE]), |
807f8a8c LC |
6396 | request->ie_len); |
6397 | } | |
6398 | ||
256da02d | 6399 | if (attrs[NL80211_ATTR_SCAN_FLAGS]) { |
ed473771 | 6400 | request->flags = nla_get_u32( |
256da02d | 6401 | attrs[NL80211_ATTR_SCAN_FLAGS]); |
00c3a6ed JB |
6402 | if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
6403 | !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { | |
46856bbf SL |
6404 | err = -EOPNOTSUPP; |
6405 | goto out_free; | |
6406 | } | |
ad2b26ab JB |
6407 | |
6408 | if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { | |
6409 | u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR; | |
6410 | ||
6411 | if (!wdev) /* must be net-detect */ | |
6412 | flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR; | |
6413 | ||
6414 | if (!(wiphy->features & flg)) { | |
6415 | err = -EOPNOTSUPP; | |
6416 | goto out_free; | |
6417 | } | |
6418 | ||
6419 | if (wdev && wdev->current_bss) { | |
6420 | err = -EOPNOTSUPP; | |
6421 | goto out_free; | |
6422 | } | |
6423 | ||
6424 | err = nl80211_parse_random_mac(attrs, request->mac_addr, | |
6425 | request->mac_addr_mask); | |
6426 | if (err) | |
6427 | goto out_free; | |
6428 | } | |
46856bbf | 6429 | } |
ed473771 | 6430 | |
9c748934 LC |
6431 | if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY]) |
6432 | request->delay = | |
6433 | nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]); | |
6434 | ||
3b06d277 AS |
6435 | err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs); |
6436 | if (err) | |
6437 | goto out_free; | |
6438 | ||
15d6030b | 6439 | request->scan_start = jiffies; |
807f8a8c | 6440 | |
256da02d | 6441 | return request; |
807f8a8c LC |
6442 | |
6443 | out_free: | |
6444 | kfree(request); | |
256da02d LC |
6445 | return ERR_PTR(err); |
6446 | } | |
6447 | ||
6448 | static int nl80211_start_sched_scan(struct sk_buff *skb, | |
6449 | struct genl_info *info) | |
6450 | { | |
6451 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6452 | struct net_device *dev = info->user_ptr[1]; | |
ad2b26ab | 6453 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
31a60ed1 | 6454 | struct cfg80211_sched_scan_request *sched_scan_req; |
256da02d LC |
6455 | int err; |
6456 | ||
6457 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
6458 | !rdev->ops->sched_scan_start) | |
6459 | return -EOPNOTSUPP; | |
6460 | ||
6461 | if (rdev->sched_scan_req) | |
6462 | return -EINPROGRESS; | |
6463 | ||
31a60ed1 JR |
6464 | sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev, |
6465 | info->attrs); | |
6466 | ||
6467 | err = PTR_ERR_OR_ZERO(sched_scan_req); | |
256da02d LC |
6468 | if (err) |
6469 | goto out_err; | |
6470 | ||
31a60ed1 | 6471 | err = rdev_sched_scan_start(rdev, dev, sched_scan_req); |
256da02d LC |
6472 | if (err) |
6473 | goto out_free; | |
6474 | ||
31a60ed1 JR |
6475 | sched_scan_req->dev = dev; |
6476 | sched_scan_req->wiphy = &rdev->wiphy; | |
6477 | ||
93a1e86c JR |
6478 | if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) |
6479 | sched_scan_req->owner_nlportid = info->snd_portid; | |
6480 | ||
31a60ed1 | 6481 | rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req); |
256da02d LC |
6482 | |
6483 | nl80211_send_sched_scan(rdev, dev, | |
6484 | NL80211_CMD_START_SCHED_SCAN); | |
6485 | return 0; | |
6486 | ||
6487 | out_free: | |
31a60ed1 | 6488 | kfree(sched_scan_req); |
256da02d | 6489 | out_err: |
807f8a8c LC |
6490 | return err; |
6491 | } | |
6492 | ||
6493 | static int nl80211_stop_sched_scan(struct sk_buff *skb, | |
6494 | struct genl_info *info) | |
6495 | { | |
6496 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6497 | ||
6498 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || | |
6499 | !rdev->ops->sched_scan_stop) | |
6500 | return -EOPNOTSUPP; | |
6501 | ||
5fe231e8 | 6502 | return __cfg80211_stop_sched_scan(rdev, false); |
807f8a8c LC |
6503 | } |
6504 | ||
04f39047 SW |
6505 | static int nl80211_start_radar_detection(struct sk_buff *skb, |
6506 | struct genl_info *info) | |
6507 | { | |
6508 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6509 | struct net_device *dev = info->user_ptr[1]; | |
6510 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6511 | struct cfg80211_chan_def chandef; | |
55f7435c | 6512 | enum nl80211_dfs_regions dfs_region; |
31559f35 | 6513 | unsigned int cac_time_ms; |
04f39047 SW |
6514 | int err; |
6515 | ||
55f7435c LR |
6516 | dfs_region = reg_get_dfs_region(wdev->wiphy); |
6517 | if (dfs_region == NL80211_DFS_UNSET) | |
6518 | return -EINVAL; | |
6519 | ||
04f39047 SW |
6520 | err = nl80211_parse_chandef(rdev, info, &chandef); |
6521 | if (err) | |
6522 | return err; | |
6523 | ||
ff311bc1 SW |
6524 | if (netif_carrier_ok(dev)) |
6525 | return -EBUSY; | |
6526 | ||
04f39047 SW |
6527 | if (wdev->cac_started) |
6528 | return -EBUSY; | |
6529 | ||
2beb6dab | 6530 | err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, |
00ec75fc | 6531 | wdev->iftype); |
04f39047 SW |
6532 | if (err < 0) |
6533 | return err; | |
6534 | ||
6535 | if (err == 0) | |
6536 | return -EINVAL; | |
6537 | ||
fe7c3a1f | 6538 | if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef)) |
04f39047 SW |
6539 | return -EINVAL; |
6540 | ||
6541 | if (!rdev->ops->start_radar_detection) | |
6542 | return -EOPNOTSUPP; | |
6543 | ||
31559f35 JD |
6544 | cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef); |
6545 | if (WARN_ON(!cac_time_ms)) | |
6546 | cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS; | |
6547 | ||
a1056b1b | 6548 | err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms); |
04f39047 | 6549 | if (!err) { |
9e0e2961 | 6550 | wdev->chandef = chandef; |
04f39047 SW |
6551 | wdev->cac_started = true; |
6552 | wdev->cac_start_time = jiffies; | |
31559f35 | 6553 | wdev->cac_time_ms = cac_time_ms; |
04f39047 | 6554 | } |
04f39047 SW |
6555 | return err; |
6556 | } | |
6557 | ||
16ef1fe2 SW |
6558 | static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) |
6559 | { | |
6560 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
6561 | struct net_device *dev = info->user_ptr[1]; | |
6562 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
6563 | struct cfg80211_csa_settings params; | |
6564 | /* csa_attrs is defined static to avoid waste of stack size - this | |
6565 | * function is called under RTNL lock, so this should not be a problem. | |
6566 | */ | |
6567 | static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1]; | |
16ef1fe2 | 6568 | int err; |
ee4bc9e7 | 6569 | bool need_new_beacon = false; |
9a774c78 | 6570 | int len, i; |
252e07ca | 6571 | u32 cs_count; |
16ef1fe2 SW |
6572 | |
6573 | if (!rdev->ops->channel_switch || | |
6574 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)) | |
6575 | return -EOPNOTSUPP; | |
6576 | ||
ee4bc9e7 SW |
6577 | switch (dev->ieee80211_ptr->iftype) { |
6578 | case NL80211_IFTYPE_AP: | |
6579 | case NL80211_IFTYPE_P2P_GO: | |
6580 | need_new_beacon = true; | |
6581 | ||
6582 | /* useless if AP is not running */ | |
6583 | if (!wdev->beacon_interval) | |
1ff79dfa | 6584 | return -ENOTCONN; |
ee4bc9e7 SW |
6585 | break; |
6586 | case NL80211_IFTYPE_ADHOC: | |
1ff79dfa JB |
6587 | if (!wdev->ssid_len) |
6588 | return -ENOTCONN; | |
6589 | break; | |
c6da674a | 6590 | case NL80211_IFTYPE_MESH_POINT: |
1ff79dfa JB |
6591 | if (!wdev->mesh_id_len) |
6592 | return -ENOTCONN; | |
ee4bc9e7 SW |
6593 | break; |
6594 | default: | |
16ef1fe2 | 6595 | return -EOPNOTSUPP; |
ee4bc9e7 | 6596 | } |
16ef1fe2 SW |
6597 | |
6598 | memset(¶ms, 0, sizeof(params)); | |
6599 | ||
6600 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
6601 | !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]) | |
6602 | return -EINVAL; | |
6603 | ||
6604 | /* only important for AP, IBSS and mesh create IEs internally */ | |
d0a361a5 | 6605 | if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES]) |
16ef1fe2 SW |
6606 | return -EINVAL; |
6607 | ||
252e07ca LC |
6608 | /* Even though the attribute is u32, the specification says |
6609 | * u8, so let's make sure we don't overflow. | |
6610 | */ | |
6611 | cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]); | |
6612 | if (cs_count > 255) | |
6613 | return -EINVAL; | |
6614 | ||
6615 | params.count = cs_count; | |
16ef1fe2 | 6616 | |
ee4bc9e7 SW |
6617 | if (!need_new_beacon) |
6618 | goto skip_beacons; | |
6619 | ||
16ef1fe2 SW |
6620 | err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after); |
6621 | if (err) | |
6622 | return err; | |
6623 | ||
6624 | err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX, | |
6625 | info->attrs[NL80211_ATTR_CSA_IES], | |
6626 | nl80211_policy); | |
6627 | if (err) | |
6628 | return err; | |
6629 | ||
6630 | err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa); | |
6631 | if (err) | |
6632 | return err; | |
6633 | ||
6634 | if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]) | |
6635 | return -EINVAL; | |
6636 | ||
9a774c78 AO |
6637 | len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); |
6638 | if (!len || (len % sizeof(u16))) | |
16ef1fe2 SW |
6639 | return -EINVAL; |
6640 | ||
9a774c78 AO |
6641 | params.n_counter_offsets_beacon = len / sizeof(u16); |
6642 | if (rdev->wiphy.max_num_csa_counters && | |
6643 | (params.n_counter_offsets_beacon > | |
6644 | rdev->wiphy.max_num_csa_counters)) | |
16ef1fe2 SW |
6645 | return -EINVAL; |
6646 | ||
9a774c78 AO |
6647 | params.counter_offsets_beacon = |
6648 | nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); | |
6649 | ||
6650 | /* sanity checks - counters should fit and be the same */ | |
6651 | for (i = 0; i < params.n_counter_offsets_beacon; i++) { | |
6652 | u16 offset = params.counter_offsets_beacon[i]; | |
6653 | ||
6654 | if (offset >= params.beacon_csa.tail_len) | |
6655 | return -EINVAL; | |
6656 | ||
6657 | if (params.beacon_csa.tail[offset] != params.count) | |
6658 | return -EINVAL; | |
6659 | } | |
6660 | ||
16ef1fe2 | 6661 | if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) { |
9a774c78 AO |
6662 | len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); |
6663 | if (!len || (len % sizeof(u16))) | |
16ef1fe2 SW |
6664 | return -EINVAL; |
6665 | ||
9a774c78 AO |
6666 | params.n_counter_offsets_presp = len / sizeof(u16); |
6667 | if (rdev->wiphy.max_num_csa_counters && | |
6668 | (params.n_counter_offsets_beacon > | |
6669 | rdev->wiphy.max_num_csa_counters)) | |
16ef1fe2 | 6670 | return -EINVAL; |
9a774c78 AO |
6671 | |
6672 | params.counter_offsets_presp = | |
6673 | nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); | |
6674 | ||
6675 | /* sanity checks - counters should fit and be the same */ | |
6676 | for (i = 0; i < params.n_counter_offsets_presp; i++) { | |
6677 | u16 offset = params.counter_offsets_presp[i]; | |
6678 | ||
6679 | if (offset >= params.beacon_csa.probe_resp_len) | |
6680 | return -EINVAL; | |
6681 | ||
6682 | if (params.beacon_csa.probe_resp[offset] != | |
6683 | params.count) | |
6684 | return -EINVAL; | |
6685 | } | |
16ef1fe2 SW |
6686 | } |
6687 | ||
ee4bc9e7 | 6688 | skip_beacons: |
16ef1fe2 SW |
6689 | err = nl80211_parse_chandef(rdev, info, ¶ms.chandef); |
6690 | if (err) | |
6691 | return err; | |
6692 | ||
923b352f AN |
6693 | if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef, |
6694 | wdev->iftype)) | |
16ef1fe2 SW |
6695 | return -EINVAL; |
6696 | ||
2beb6dab LC |
6697 | err = cfg80211_chandef_dfs_required(wdev->wiphy, |
6698 | ¶ms.chandef, | |
6699 | wdev->iftype); | |
6700 | if (err < 0) | |
6701 | return err; | |
6702 | ||
dcc6c2f5 | 6703 | if (err > 0) |
2beb6dab | 6704 | params.radar_required = true; |
16ef1fe2 | 6705 | |
16ef1fe2 SW |
6706 | if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX]) |
6707 | params.block_tx = true; | |
6708 | ||
c56589ed SW |
6709 | wdev_lock(wdev); |
6710 | err = rdev_channel_switch(rdev, dev, ¶ms); | |
6711 | wdev_unlock(wdev); | |
6712 | ||
6713 | return err; | |
16ef1fe2 SW |
6714 | } |
6715 | ||
9720bb3a JB |
6716 | static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb, |
6717 | u32 seq, int flags, | |
2a519311 | 6718 | struct cfg80211_registered_device *rdev, |
48ab905d JB |
6719 | struct wireless_dev *wdev, |
6720 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 6721 | { |
48ab905d | 6722 | struct cfg80211_bss *res = &intbss->pub; |
9caf0364 | 6723 | const struct cfg80211_bss_ies *ies; |
2a519311 JB |
6724 | void *hdr; |
6725 | struct nlattr *bss; | |
48ab905d JB |
6726 | |
6727 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 | 6728 | |
15e47304 | 6729 | hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags, |
2a519311 JB |
6730 | NL80211_CMD_NEW_SCAN_RESULTS); |
6731 | if (!hdr) | |
6732 | return -1; | |
6733 | ||
9720bb3a JB |
6734 | genl_dump_check_consistent(cb, hdr, &nl80211_fam); |
6735 | ||
97990a06 JB |
6736 | if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation)) |
6737 | goto nla_put_failure; | |
6738 | if (wdev->netdev && | |
9360ffd1 DM |
6739 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex)) |
6740 | goto nla_put_failure; | |
97990a06 JB |
6741 | if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) |
6742 | goto nla_put_failure; | |
2a519311 JB |
6743 | |
6744 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
6745 | if (!bss) | |
6746 | goto nla_put_failure; | |
9360ffd1 | 6747 | if ((!is_zero_ether_addr(res->bssid) && |
9caf0364 | 6748 | nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid))) |
9360ffd1 | 6749 | goto nla_put_failure; |
9caf0364 JB |
6750 | |
6751 | rcu_read_lock(); | |
0e227084 JB |
6752 | /* indicate whether we have probe response data or not */ |
6753 | if (rcu_access_pointer(res->proberesp_ies) && | |
6754 | nla_put_flag(msg, NL80211_BSS_PRESP_DATA)) | |
6755 | goto fail_unlock_rcu; | |
6756 | ||
6757 | /* this pointer prefers to be pointed to probe response data | |
6758 | * but is always valid | |
6759 | */ | |
9caf0364 | 6760 | ies = rcu_dereference(res->ies); |
8cef2c9d JB |
6761 | if (ies) { |
6762 | if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf)) | |
6763 | goto fail_unlock_rcu; | |
8cef2c9d JB |
6764 | if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS, |
6765 | ies->len, ies->data)) | |
6766 | goto fail_unlock_rcu; | |
9caf0364 | 6767 | } |
0e227084 JB |
6768 | |
6769 | /* and this pointer is always (unless driver didn't know) beacon data */ | |
9caf0364 | 6770 | ies = rcu_dereference(res->beacon_ies); |
0e227084 JB |
6771 | if (ies && ies->from_beacon) { |
6772 | if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf)) | |
8cef2c9d JB |
6773 | goto fail_unlock_rcu; |
6774 | if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES, | |
6775 | ies->len, ies->data)) | |
6776 | goto fail_unlock_rcu; | |
9caf0364 JB |
6777 | } |
6778 | rcu_read_unlock(); | |
6779 | ||
9360ffd1 DM |
6780 | if (res->beacon_interval && |
6781 | nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval)) | |
6782 | goto nla_put_failure; | |
6783 | if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) || | |
6784 | nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) || | |
dcd6eac1 | 6785 | nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) || |
9360ffd1 DM |
6786 | nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO, |
6787 | jiffies_to_msecs(jiffies - intbss->ts))) | |
6788 | goto nla_put_failure; | |
2a519311 | 6789 | |
6e19bc4b DS |
6790 | if (intbss->ts_boottime && |
6791 | nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME, | |
6792 | intbss->ts_boottime)) | |
6793 | goto nla_put_failure; | |
6794 | ||
77965c97 | 6795 | switch (rdev->wiphy.signal_type) { |
2a519311 | 6796 | case CFG80211_SIGNAL_TYPE_MBM: |
9360ffd1 DM |
6797 | if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal)) |
6798 | goto nla_put_failure; | |
2a519311 JB |
6799 | break; |
6800 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
9360ffd1 DM |
6801 | if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal)) |
6802 | goto nla_put_failure; | |
2a519311 JB |
6803 | break; |
6804 | default: | |
6805 | break; | |
6806 | } | |
6807 | ||
48ab905d | 6808 | switch (wdev->iftype) { |
074ac8df | 6809 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d | 6810 | case NL80211_IFTYPE_STATION: |
9360ffd1 DM |
6811 | if (intbss == wdev->current_bss && |
6812 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
6813 | NL80211_BSS_STATUS_ASSOCIATED)) | |
6814 | goto nla_put_failure; | |
48ab905d JB |
6815 | break; |
6816 | case NL80211_IFTYPE_ADHOC: | |
9360ffd1 DM |
6817 | if (intbss == wdev->current_bss && |
6818 | nla_put_u32(msg, NL80211_BSS_STATUS, | |
6819 | NL80211_BSS_STATUS_IBSS_JOINED)) | |
6820 | goto nla_put_failure; | |
48ab905d JB |
6821 | break; |
6822 | default: | |
6823 | break; | |
6824 | } | |
6825 | ||
2a519311 JB |
6826 | nla_nest_end(msg, bss); |
6827 | ||
053c095a JB |
6828 | genlmsg_end(msg, hdr); |
6829 | return 0; | |
2a519311 | 6830 | |
8cef2c9d JB |
6831 | fail_unlock_rcu: |
6832 | rcu_read_unlock(); | |
2a519311 JB |
6833 | nla_put_failure: |
6834 | genlmsg_cancel(msg, hdr); | |
6835 | return -EMSGSIZE; | |
6836 | } | |
6837 | ||
97990a06 | 6838 | static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb) |
2a519311 | 6839 | { |
48ab905d | 6840 | struct cfg80211_registered_device *rdev; |
2a519311 | 6841 | struct cfg80211_internal_bss *scan; |
48ab905d | 6842 | struct wireless_dev *wdev; |
97990a06 | 6843 | int start = cb->args[2], idx = 0; |
2a519311 JB |
6844 | int err; |
6845 | ||
97990a06 | 6846 | err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
6847 | if (err) |
6848 | return err; | |
2a519311 | 6849 | |
48ab905d JB |
6850 | wdev_lock(wdev); |
6851 | spin_lock_bh(&rdev->bss_lock); | |
6852 | cfg80211_bss_expire(rdev); | |
6853 | ||
9720bb3a JB |
6854 | cb->seq = rdev->bss_generation; |
6855 | ||
48ab905d | 6856 | list_for_each_entry(scan, &rdev->bss_list, list) { |
2a519311 JB |
6857 | if (++idx <= start) |
6858 | continue; | |
9720bb3a | 6859 | if (nl80211_send_bss(skb, cb, |
2a519311 | 6860 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
48ab905d | 6861 | rdev, wdev, scan) < 0) { |
2a519311 | 6862 | idx--; |
67748893 | 6863 | break; |
2a519311 JB |
6864 | } |
6865 | } | |
6866 | ||
48ab905d JB |
6867 | spin_unlock_bh(&rdev->bss_lock); |
6868 | wdev_unlock(wdev); | |
2a519311 | 6869 | |
97990a06 JB |
6870 | cb->args[2] = idx; |
6871 | nl80211_finish_wdev_dump(rdev); | |
2a519311 | 6872 | |
67748893 | 6873 | return skb->len; |
2a519311 JB |
6874 | } |
6875 | ||
15e47304 | 6876 | static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq, |
11f78ac3 JB |
6877 | int flags, struct net_device *dev, |
6878 | bool allow_radio_stats, | |
6879 | struct survey_info *survey) | |
61fa713c HS |
6880 | { |
6881 | void *hdr; | |
6882 | struct nlattr *infoattr; | |
6883 | ||
11f78ac3 JB |
6884 | /* skip radio stats if userspace didn't request them */ |
6885 | if (!survey->channel && !allow_radio_stats) | |
6886 | return 0; | |
6887 | ||
15e47304 | 6888 | hdr = nl80211hdr_put(msg, portid, seq, flags, |
61fa713c HS |
6889 | NL80211_CMD_NEW_SURVEY_RESULTS); |
6890 | if (!hdr) | |
6891 | return -ENOMEM; | |
6892 | ||
9360ffd1 DM |
6893 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
6894 | goto nla_put_failure; | |
61fa713c HS |
6895 | |
6896 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
6897 | if (!infoattr) | |
6898 | goto nla_put_failure; | |
6899 | ||
11f78ac3 JB |
6900 | if (survey->channel && |
6901 | nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
9360ffd1 DM |
6902 | survey->channel->center_freq)) |
6903 | goto nla_put_failure; | |
6904 | ||
6905 | if ((survey->filled & SURVEY_INFO_NOISE_DBM) && | |
6906 | nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise)) | |
6907 | goto nla_put_failure; | |
6908 | if ((survey->filled & SURVEY_INFO_IN_USE) && | |
6909 | nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE)) | |
6910 | goto nla_put_failure; | |
4ed20beb JB |
6911 | if ((survey->filled & SURVEY_INFO_TIME) && |
6912 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME, | |
6913 | survey->time)) | |
9360ffd1 | 6914 | goto nla_put_failure; |
4ed20beb JB |
6915 | if ((survey->filled & SURVEY_INFO_TIME_BUSY) && |
6916 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY, | |
6917 | survey->time_busy)) | |
9360ffd1 | 6918 | goto nla_put_failure; |
4ed20beb JB |
6919 | if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) && |
6920 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY, | |
6921 | survey->time_ext_busy)) | |
9360ffd1 | 6922 | goto nla_put_failure; |
4ed20beb JB |
6923 | if ((survey->filled & SURVEY_INFO_TIME_RX) && |
6924 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX, | |
6925 | survey->time_rx)) | |
9360ffd1 | 6926 | goto nla_put_failure; |
4ed20beb JB |
6927 | if ((survey->filled & SURVEY_INFO_TIME_TX) && |
6928 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX, | |
6929 | survey->time_tx)) | |
9360ffd1 | 6930 | goto nla_put_failure; |
052536ab JB |
6931 | if ((survey->filled & SURVEY_INFO_TIME_SCAN) && |
6932 | nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN, | |
6933 | survey->time_scan)) | |
6934 | goto nla_put_failure; | |
61fa713c HS |
6935 | |
6936 | nla_nest_end(msg, infoattr); | |
6937 | ||
053c095a JB |
6938 | genlmsg_end(msg, hdr); |
6939 | return 0; | |
61fa713c HS |
6940 | |
6941 | nla_put_failure: | |
6942 | genlmsg_cancel(msg, hdr); | |
6943 | return -EMSGSIZE; | |
6944 | } | |
6945 | ||
11f78ac3 | 6946 | static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb) |
61fa713c HS |
6947 | { |
6948 | struct survey_info survey; | |
1b8ec87a | 6949 | struct cfg80211_registered_device *rdev; |
97990a06 JB |
6950 | struct wireless_dev *wdev; |
6951 | int survey_idx = cb->args[2]; | |
61fa713c | 6952 | int res; |
11f78ac3 | 6953 | bool radio_stats; |
61fa713c | 6954 | |
1b8ec87a | 6955 | res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); |
67748893 JB |
6956 | if (res) |
6957 | return res; | |
61fa713c | 6958 | |
11f78ac3 JB |
6959 | /* prepare_wdev_dump parsed the attributes */ |
6960 | radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS]; | |
6961 | ||
97990a06 JB |
6962 | if (!wdev->netdev) { |
6963 | res = -EINVAL; | |
6964 | goto out_err; | |
6965 | } | |
6966 | ||
1b8ec87a | 6967 | if (!rdev->ops->dump_survey) { |
61fa713c HS |
6968 | res = -EOPNOTSUPP; |
6969 | goto out_err; | |
6970 | } | |
6971 | ||
6972 | while (1) { | |
1b8ec87a | 6973 | res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey); |
61fa713c HS |
6974 | if (res == -ENOENT) |
6975 | break; | |
6976 | if (res) | |
6977 | goto out_err; | |
6978 | ||
11f78ac3 JB |
6979 | /* don't send disabled channels, but do send non-channel data */ |
6980 | if (survey.channel && | |
6981 | survey.channel->flags & IEEE80211_CHAN_DISABLED) { | |
180cdc79 LR |
6982 | survey_idx++; |
6983 | continue; | |
6984 | } | |
6985 | ||
61fa713c | 6986 | if (nl80211_send_survey(skb, |
15e47304 | 6987 | NETLINK_CB(cb->skb).portid, |
61fa713c | 6988 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
11f78ac3 | 6989 | wdev->netdev, radio_stats, &survey) < 0) |
61fa713c HS |
6990 | goto out; |
6991 | survey_idx++; | |
6992 | } | |
6993 | ||
6994 | out: | |
97990a06 | 6995 | cb->args[2] = survey_idx; |
61fa713c HS |
6996 | res = skb->len; |
6997 | out_err: | |
1b8ec87a | 6998 | nl80211_finish_wdev_dump(rdev); |
61fa713c HS |
6999 | return res; |
7000 | } | |
7001 | ||
b23aa676 SO |
7002 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) |
7003 | { | |
7004 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
7005 | NL80211_WPA_VERSION_2)); | |
7006 | } | |
7007 | ||
636a5d36 JM |
7008 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
7009 | { | |
4c476991 JB |
7010 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7011 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 7012 | struct ieee80211_channel *chan; |
e39e5b5e JM |
7013 | const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL; |
7014 | int err, ssid_len, ie_len = 0, sae_data_len = 0; | |
19957bb3 | 7015 | enum nl80211_auth_type auth_type; |
fffd0934 | 7016 | struct key_parse key; |
d5cdfacb | 7017 | bool local_state_change; |
636a5d36 | 7018 | |
f4a11bb0 JB |
7019 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
7020 | return -EINVAL; | |
7021 | ||
7022 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7023 | return -EINVAL; | |
7024 | ||
1778092e JM |
7025 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
7026 | return -EINVAL; | |
7027 | ||
19957bb3 JB |
7028 | if (!info->attrs[NL80211_ATTR_SSID]) |
7029 | return -EINVAL; | |
7030 | ||
7031 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
7032 | return -EINVAL; | |
7033 | ||
fffd0934 JB |
7034 | err = nl80211_parse_key(info, &key); |
7035 | if (err) | |
7036 | return err; | |
7037 | ||
7038 | if (key.idx >= 0) { | |
e31b8213 JB |
7039 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
7040 | return -EINVAL; | |
fffd0934 JB |
7041 | if (!key.p.key || !key.p.key_len) |
7042 | return -EINVAL; | |
7043 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
7044 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
7045 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
7046 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
7047 | return -EINVAL; | |
7048 | if (key.idx > 4) | |
7049 | return -EINVAL; | |
7050 | } else { | |
7051 | key.p.key_len = 0; | |
7052 | key.p.key = NULL; | |
7053 | } | |
7054 | ||
afea0b7a JB |
7055 | if (key.idx >= 0) { |
7056 | int i; | |
7057 | bool ok = false; | |
7058 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
7059 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
7060 | ok = true; | |
7061 | break; | |
7062 | } | |
7063 | } | |
4c476991 JB |
7064 | if (!ok) |
7065 | return -EINVAL; | |
afea0b7a JB |
7066 | } |
7067 | ||
4c476991 JB |
7068 | if (!rdev->ops->auth) |
7069 | return -EOPNOTSUPP; | |
636a5d36 | 7070 | |
074ac8df | 7071 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7072 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7073 | return -EOPNOTSUPP; | |
eec60b03 | 7074 | |
19957bb3 | 7075 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
664834de JM |
7076 | chan = nl80211_get_valid_chan(&rdev->wiphy, |
7077 | info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
7078 | if (!chan) | |
4c476991 | 7079 | return -EINVAL; |
636a5d36 | 7080 | |
19957bb3 JB |
7081 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
7082 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
7083 | |
7084 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
7085 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
7086 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
7087 | } |
7088 | ||
19957bb3 | 7089 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
e39e5b5e | 7090 | if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE)) |
4c476991 | 7091 | return -EINVAL; |
636a5d36 | 7092 | |
e39e5b5e JM |
7093 | if (auth_type == NL80211_AUTHTYPE_SAE && |
7094 | !info->attrs[NL80211_ATTR_SAE_DATA]) | |
7095 | return -EINVAL; | |
7096 | ||
7097 | if (info->attrs[NL80211_ATTR_SAE_DATA]) { | |
7098 | if (auth_type != NL80211_AUTHTYPE_SAE) | |
7099 | return -EINVAL; | |
7100 | sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]); | |
7101 | sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]); | |
7102 | /* need to include at least Auth Transaction and Status Code */ | |
7103 | if (sae_data_len < 4) | |
7104 | return -EINVAL; | |
7105 | } | |
7106 | ||
d5cdfacb JM |
7107 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
7108 | ||
95de817b JB |
7109 | /* |
7110 | * Since we no longer track auth state, ignore | |
7111 | * requests to only change local state. | |
7112 | */ | |
7113 | if (local_state_change) | |
7114 | return 0; | |
7115 | ||
91bf9b26 JB |
7116 | wdev_lock(dev->ieee80211_ptr); |
7117 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, | |
7118 | ssid, ssid_len, ie, ie_len, | |
7119 | key.p.key, key.p.key_len, key.idx, | |
7120 | sae_data, sae_data_len); | |
7121 | wdev_unlock(dev->ieee80211_ptr); | |
7122 | return err; | |
636a5d36 JM |
7123 | } |
7124 | ||
c0692b8f JB |
7125 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
7126 | struct genl_info *info, | |
3dc27d25 JB |
7127 | struct cfg80211_crypto_settings *settings, |
7128 | int cipher_limit) | |
b23aa676 | 7129 | { |
c0b2bbd8 JB |
7130 | memset(settings, 0, sizeof(*settings)); |
7131 | ||
b23aa676 SO |
7132 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
7133 | ||
c0692b8f JB |
7134 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
7135 | u16 proto; | |
7136 | proto = nla_get_u16( | |
7137 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
7138 | settings->control_port_ethertype = cpu_to_be16(proto); | |
7139 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
7140 | proto != ETH_P_PAE) | |
7141 | return -EINVAL; | |
7142 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
7143 | settings->control_port_no_encrypt = true; | |
7144 | } else | |
7145 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
7146 | ||
b23aa676 SO |
7147 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
7148 | void *data; | |
7149 | int len, i; | |
7150 | ||
7151 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
7152 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
7153 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
7154 | ||
7155 | if (len % sizeof(u32)) | |
7156 | return -EINVAL; | |
7157 | ||
3dc27d25 | 7158 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
7159 | return -EINVAL; |
7160 | ||
7161 | memcpy(settings->ciphers_pairwise, data, len); | |
7162 | ||
7163 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
38ba3c57 JM |
7164 | if (!cfg80211_supported_cipher_suite( |
7165 | &rdev->wiphy, | |
b23aa676 SO |
7166 | settings->ciphers_pairwise[i])) |
7167 | return -EINVAL; | |
7168 | } | |
7169 | ||
7170 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
7171 | settings->cipher_group = | |
7172 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
38ba3c57 JM |
7173 | if (!cfg80211_supported_cipher_suite(&rdev->wiphy, |
7174 | settings->cipher_group)) | |
b23aa676 SO |
7175 | return -EINVAL; |
7176 | } | |
7177 | ||
7178 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
7179 | settings->wpa_versions = | |
7180 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
7181 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
7182 | return -EINVAL; | |
7183 | } | |
7184 | ||
7185 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
7186 | void *data; | |
6d30240e | 7187 | int len; |
b23aa676 SO |
7188 | |
7189 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
7190 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
7191 | settings->n_akm_suites = len / sizeof(u32); | |
7192 | ||
7193 | if (len % sizeof(u32)) | |
7194 | return -EINVAL; | |
7195 | ||
1b9ca027 JM |
7196 | if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES) |
7197 | return -EINVAL; | |
7198 | ||
b23aa676 | 7199 | memcpy(settings->akm_suites, data, len); |
b23aa676 SO |
7200 | } |
7201 | ||
7202 | return 0; | |
7203 | } | |
7204 | ||
636a5d36 JM |
7205 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
7206 | { | |
4c476991 JB |
7207 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7208 | struct net_device *dev = info->user_ptr[1]; | |
f444de05 | 7209 | struct ieee80211_channel *chan; |
f62fab73 JB |
7210 | struct cfg80211_assoc_request req = {}; |
7211 | const u8 *bssid, *ssid; | |
7212 | int err, ssid_len = 0; | |
636a5d36 | 7213 | |
f4a11bb0 JB |
7214 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
7215 | return -EINVAL; | |
7216 | ||
7217 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
7218 | !info->attrs[NL80211_ATTR_SSID] || |
7219 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
7220 | return -EINVAL; |
7221 | ||
4c476991 JB |
7222 | if (!rdev->ops->assoc) |
7223 | return -EOPNOTSUPP; | |
636a5d36 | 7224 | |
074ac8df | 7225 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7226 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7227 | return -EOPNOTSUPP; | |
eec60b03 | 7228 | |
19957bb3 | 7229 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 7230 | |
664834de JM |
7231 | chan = nl80211_get_valid_chan(&rdev->wiphy, |
7232 | info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
7233 | if (!chan) | |
4c476991 | 7234 | return -EINVAL; |
636a5d36 | 7235 | |
19957bb3 JB |
7236 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
7237 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
7238 | |
7239 | if (info->attrs[NL80211_ATTR_IE]) { | |
f62fab73 JB |
7240 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
7241 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
7242 | } |
7243 | ||
dc6382ce | 7244 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 7245 | enum nl80211_mfp mfp = |
dc6382ce | 7246 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 7247 | if (mfp == NL80211_MFP_REQUIRED) |
f62fab73 | 7248 | req.use_mfp = true; |
4c476991 JB |
7249 | else if (mfp != NL80211_MFP_NO) |
7250 | return -EINVAL; | |
dc6382ce JM |
7251 | } |
7252 | ||
3e5d7649 | 7253 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
f62fab73 | 7254 | req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); |
3e5d7649 | 7255 | |
7e7c8926 | 7256 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
f62fab73 | 7257 | req.flags |= ASSOC_REQ_DISABLE_HT; |
7e7c8926 BG |
7258 | |
7259 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
f62fab73 JB |
7260 | memcpy(&req.ht_capa_mask, |
7261 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
7262 | sizeof(req.ht_capa_mask)); | |
7e7c8926 BG |
7263 | |
7264 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
f62fab73 | 7265 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
7e7c8926 | 7266 | return -EINVAL; |
f62fab73 JB |
7267 | memcpy(&req.ht_capa, |
7268 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
7269 | sizeof(req.ht_capa)); | |
7e7c8926 BG |
7270 | } |
7271 | ||
ee2aca34 | 7272 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) |
f62fab73 | 7273 | req.flags |= ASSOC_REQ_DISABLE_VHT; |
ee2aca34 JB |
7274 | |
7275 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) | |
f62fab73 JB |
7276 | memcpy(&req.vht_capa_mask, |
7277 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), | |
7278 | sizeof(req.vht_capa_mask)); | |
ee2aca34 JB |
7279 | |
7280 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { | |
f62fab73 | 7281 | if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) |
ee2aca34 | 7282 | return -EINVAL; |
f62fab73 JB |
7283 | memcpy(&req.vht_capa, |
7284 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), | |
7285 | sizeof(req.vht_capa)); | |
ee2aca34 JB |
7286 | } |
7287 | ||
bab5ab7d | 7288 | if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) { |
0c9ca11b BL |
7289 | if (!((rdev->wiphy.features & |
7290 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) && | |
7291 | (rdev->wiphy.features & NL80211_FEATURE_QUIET)) && | |
7292 | !wiphy_ext_feature_isset(&rdev->wiphy, | |
7293 | NL80211_EXT_FEATURE_RRM)) | |
bab5ab7d AK |
7294 | return -EINVAL; |
7295 | req.flags |= ASSOC_REQ_USE_RRM; | |
7296 | } | |
7297 | ||
f62fab73 | 7298 | err = nl80211_crypto_settings(rdev, info, &req.crypto, 1); |
91bf9b26 JB |
7299 | if (!err) { |
7300 | wdev_lock(dev->ieee80211_ptr); | |
f62fab73 JB |
7301 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, |
7302 | ssid, ssid_len, &req); | |
91bf9b26 JB |
7303 | wdev_unlock(dev->ieee80211_ptr); |
7304 | } | |
636a5d36 | 7305 | |
636a5d36 JM |
7306 | return err; |
7307 | } | |
7308 | ||
7309 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
7310 | { | |
4c476991 JB |
7311 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7312 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 7313 | const u8 *ie = NULL, *bssid; |
91bf9b26 | 7314 | int ie_len = 0, err; |
19957bb3 | 7315 | u16 reason_code; |
d5cdfacb | 7316 | bool local_state_change; |
636a5d36 | 7317 | |
f4a11bb0 JB |
7318 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
7319 | return -EINVAL; | |
7320 | ||
7321 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7322 | return -EINVAL; | |
7323 | ||
7324 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
7325 | return -EINVAL; | |
7326 | ||
4c476991 JB |
7327 | if (!rdev->ops->deauth) |
7328 | return -EOPNOTSUPP; | |
636a5d36 | 7329 | |
074ac8df | 7330 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7331 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7332 | return -EOPNOTSUPP; | |
eec60b03 | 7333 | |
19957bb3 | 7334 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 7335 | |
19957bb3 JB |
7336 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
7337 | if (reason_code == 0) { | |
f4a11bb0 | 7338 | /* Reason Code 0 is reserved */ |
4c476991 | 7339 | return -EINVAL; |
255e737e | 7340 | } |
636a5d36 JM |
7341 | |
7342 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
7343 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
7344 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
7345 | } |
7346 | ||
d5cdfacb JM |
7347 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
7348 | ||
91bf9b26 JB |
7349 | wdev_lock(dev->ieee80211_ptr); |
7350 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, | |
7351 | local_state_change); | |
7352 | wdev_unlock(dev->ieee80211_ptr); | |
7353 | return err; | |
636a5d36 JM |
7354 | } |
7355 | ||
7356 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
7357 | { | |
4c476991 JB |
7358 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7359 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 7360 | const u8 *ie = NULL, *bssid; |
91bf9b26 | 7361 | int ie_len = 0, err; |
19957bb3 | 7362 | u16 reason_code; |
d5cdfacb | 7363 | bool local_state_change; |
636a5d36 | 7364 | |
f4a11bb0 JB |
7365 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
7366 | return -EINVAL; | |
7367 | ||
7368 | if (!info->attrs[NL80211_ATTR_MAC]) | |
7369 | return -EINVAL; | |
7370 | ||
7371 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
7372 | return -EINVAL; | |
7373 | ||
4c476991 JB |
7374 | if (!rdev->ops->disassoc) |
7375 | return -EOPNOTSUPP; | |
636a5d36 | 7376 | |
074ac8df | 7377 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7378 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7379 | return -EOPNOTSUPP; | |
eec60b03 | 7380 | |
19957bb3 | 7381 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 7382 | |
19957bb3 JB |
7383 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
7384 | if (reason_code == 0) { | |
f4a11bb0 | 7385 | /* Reason Code 0 is reserved */ |
4c476991 | 7386 | return -EINVAL; |
255e737e | 7387 | } |
636a5d36 JM |
7388 | |
7389 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
7390 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
7391 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
7392 | } |
7393 | ||
d5cdfacb JM |
7394 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
7395 | ||
91bf9b26 JB |
7396 | wdev_lock(dev->ieee80211_ptr); |
7397 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, | |
7398 | local_state_change); | |
7399 | wdev_unlock(dev->ieee80211_ptr); | |
7400 | return err; | |
636a5d36 JM |
7401 | } |
7402 | ||
dd5b4cc7 FF |
7403 | static bool |
7404 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
7405 | int mcast_rate[IEEE80211_NUM_BANDS], | |
7406 | int rateval) | |
7407 | { | |
7408 | struct wiphy *wiphy = &rdev->wiphy; | |
7409 | bool found = false; | |
7410 | int band, i; | |
7411 | ||
7412 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
7413 | struct ieee80211_supported_band *sband; | |
7414 | ||
7415 | sband = wiphy->bands[band]; | |
7416 | if (!sband) | |
7417 | continue; | |
7418 | ||
7419 | for (i = 0; i < sband->n_bitrates; i++) { | |
7420 | if (sband->bitrates[i].bitrate == rateval) { | |
7421 | mcast_rate[band] = i + 1; | |
7422 | found = true; | |
7423 | break; | |
7424 | } | |
7425 | } | |
7426 | } | |
7427 | ||
7428 | return found; | |
7429 | } | |
7430 | ||
04a773ad JB |
7431 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
7432 | { | |
4c476991 JB |
7433 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7434 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
7435 | struct cfg80211_ibss_params ibss; |
7436 | struct wiphy *wiphy; | |
fffd0934 | 7437 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
7438 | int err; |
7439 | ||
8e30bc55 JB |
7440 | memset(&ibss, 0, sizeof(ibss)); |
7441 | ||
04a773ad JB |
7442 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
7443 | return -EINVAL; | |
7444 | ||
683b6d3b | 7445 | if (!info->attrs[NL80211_ATTR_SSID] || |
04a773ad JB |
7446 | !nla_len(info->attrs[NL80211_ATTR_SSID])) |
7447 | return -EINVAL; | |
7448 | ||
8e30bc55 JB |
7449 | ibss.beacon_interval = 100; |
7450 | ||
7451 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
7452 | ibss.beacon_interval = | |
7453 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
7454 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
7455 | return -EINVAL; | |
7456 | } | |
7457 | ||
4c476991 JB |
7458 | if (!rdev->ops->join_ibss) |
7459 | return -EOPNOTSUPP; | |
04a773ad | 7460 | |
4c476991 JB |
7461 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
7462 | return -EOPNOTSUPP; | |
04a773ad | 7463 | |
79c97e97 | 7464 | wiphy = &rdev->wiphy; |
04a773ad | 7465 | |
39193498 | 7466 | if (info->attrs[NL80211_ATTR_MAC]) { |
04a773ad | 7467 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
39193498 JB |
7468 | |
7469 | if (!is_valid_ether_addr(ibss.bssid)) | |
7470 | return -EINVAL; | |
7471 | } | |
04a773ad JB |
7472 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
7473 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
7474 | ||
7475 | if (info->attrs[NL80211_ATTR_IE]) { | |
7476 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
7477 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
7478 | } | |
7479 | ||
683b6d3b JB |
7480 | err = nl80211_parse_chandef(rdev, info, &ibss.chandef); |
7481 | if (err) | |
7482 | return err; | |
04a773ad | 7483 | |
174e0cd2 IP |
7484 | if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef, |
7485 | NL80211_IFTYPE_ADHOC)) | |
54858ee5 AS |
7486 | return -EINVAL; |
7487 | ||
2f301ab2 | 7488 | switch (ibss.chandef.width) { |
bf372645 SW |
7489 | case NL80211_CHAN_WIDTH_5: |
7490 | case NL80211_CHAN_WIDTH_10: | |
2f301ab2 SW |
7491 | case NL80211_CHAN_WIDTH_20_NOHT: |
7492 | break; | |
7493 | case NL80211_CHAN_WIDTH_20: | |
7494 | case NL80211_CHAN_WIDTH_40: | |
ffc11991 JD |
7495 | if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)) |
7496 | return -EINVAL; | |
7497 | break; | |
7498 | case NL80211_CHAN_WIDTH_80: | |
7499 | case NL80211_CHAN_WIDTH_80P80: | |
7500 | case NL80211_CHAN_WIDTH_160: | |
7501 | if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)) | |
7502 | return -EINVAL; | |
7503 | if (!wiphy_ext_feature_isset(&rdev->wiphy, | |
7504 | NL80211_EXT_FEATURE_VHT_IBSS)) | |
7505 | return -EINVAL; | |
7506 | break; | |
2f301ab2 | 7507 | default: |
c04d6150 | 7508 | return -EINVAL; |
2f301ab2 | 7509 | } |
db9c64cf | 7510 | |
04a773ad | 7511 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; |
fffd0934 JB |
7512 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
7513 | ||
fbd2c8dc TP |
7514 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
7515 | u8 *rates = | |
7516 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
7517 | int n_rates = | |
7518 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
7519 | struct ieee80211_supported_band *sband = | |
683b6d3b | 7520 | wiphy->bands[ibss.chandef.chan->band]; |
fbd2c8dc | 7521 | |
34850ab2 JB |
7522 | err = ieee80211_get_ratemask(sband, rates, n_rates, |
7523 | &ibss.basic_rates); | |
7524 | if (err) | |
7525 | return err; | |
fbd2c8dc | 7526 | } |
dd5b4cc7 | 7527 | |
803768f5 SW |
7528 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) |
7529 | memcpy(&ibss.ht_capa_mask, | |
7530 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
7531 | sizeof(ibss.ht_capa_mask)); | |
7532 | ||
7533 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
7534 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
7535 | return -EINVAL; | |
7536 | memcpy(&ibss.ht_capa, | |
7537 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
7538 | sizeof(ibss.ht_capa)); | |
7539 | } | |
7540 | ||
dd5b4cc7 FF |
7541 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
7542 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
7543 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
7544 | return -EINVAL; | |
fbd2c8dc | 7545 | |
4c476991 | 7546 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
de7044ee SM |
7547 | bool no_ht = false; |
7548 | ||
4c476991 | 7549 | connkeys = nl80211_parse_connkeys(rdev, |
de7044ee SM |
7550 | info->attrs[NL80211_ATTR_KEYS], |
7551 | &no_ht); | |
4c476991 JB |
7552 | if (IS_ERR(connkeys)) |
7553 | return PTR_ERR(connkeys); | |
de7044ee | 7554 | |
3d9d1d66 JB |
7555 | if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) && |
7556 | no_ht) { | |
5e950a78 | 7557 | kzfree(connkeys); |
de7044ee SM |
7558 | return -EINVAL; |
7559 | } | |
4c476991 | 7560 | } |
04a773ad | 7561 | |
267335d6 AQ |
7562 | ibss.control_port = |
7563 | nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]); | |
7564 | ||
5336fa88 SW |
7565 | ibss.userspace_handles_dfs = |
7566 | nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]); | |
7567 | ||
4c476991 | 7568 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 | 7569 | if (err) |
b47f610b | 7570 | kzfree(connkeys); |
04a773ad JB |
7571 | return err; |
7572 | } | |
7573 | ||
7574 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
7575 | { | |
4c476991 JB |
7576 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7577 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 7578 | |
4c476991 JB |
7579 | if (!rdev->ops->leave_ibss) |
7580 | return -EOPNOTSUPP; | |
04a773ad | 7581 | |
4c476991 JB |
7582 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
7583 | return -EOPNOTSUPP; | |
04a773ad | 7584 | |
4c476991 | 7585 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
7586 | } |
7587 | ||
f4e583c8 AQ |
7588 | static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info) |
7589 | { | |
7590 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
7591 | struct net_device *dev = info->user_ptr[1]; | |
7592 | int mcast_rate[IEEE80211_NUM_BANDS]; | |
7593 | u32 nla_rate; | |
7594 | int err; | |
7595 | ||
7596 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && | |
876dc930 BVB |
7597 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
7598 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB) | |
f4e583c8 AQ |
7599 | return -EOPNOTSUPP; |
7600 | ||
7601 | if (!rdev->ops->set_mcast_rate) | |
7602 | return -EOPNOTSUPP; | |
7603 | ||
7604 | memset(mcast_rate, 0, sizeof(mcast_rate)); | |
7605 | ||
7606 | if (!info->attrs[NL80211_ATTR_MCAST_RATE]) | |
7607 | return -EINVAL; | |
7608 | ||
7609 | nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]); | |
7610 | if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate)) | |
7611 | return -EINVAL; | |
7612 | ||
a1056b1b | 7613 | err = rdev_set_mcast_rate(rdev, dev, mcast_rate); |
f4e583c8 AQ |
7614 | |
7615 | return err; | |
7616 | } | |
7617 | ||
ad7e718c JB |
7618 | static struct sk_buff * |
7619 | __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev, | |
6c09e791 AK |
7620 | struct wireless_dev *wdev, int approxlen, |
7621 | u32 portid, u32 seq, enum nl80211_commands cmd, | |
567ffc35 JB |
7622 | enum nl80211_attrs attr, |
7623 | const struct nl80211_vendor_cmd_info *info, | |
7624 | gfp_t gfp) | |
ad7e718c JB |
7625 | { |
7626 | struct sk_buff *skb; | |
7627 | void *hdr; | |
7628 | struct nlattr *data; | |
7629 | ||
7630 | skb = nlmsg_new(approxlen + 100, gfp); | |
7631 | if (!skb) | |
7632 | return NULL; | |
7633 | ||
7634 | hdr = nl80211hdr_put(skb, portid, seq, 0, cmd); | |
7635 | if (!hdr) { | |
7636 | kfree_skb(skb); | |
7637 | return NULL; | |
7638 | } | |
7639 | ||
7640 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) | |
7641 | goto nla_put_failure; | |
567ffc35 JB |
7642 | |
7643 | if (info) { | |
7644 | if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID, | |
7645 | info->vendor_id)) | |
7646 | goto nla_put_failure; | |
7647 | if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD, | |
7648 | info->subcmd)) | |
7649 | goto nla_put_failure; | |
7650 | } | |
7651 | ||
6c09e791 AK |
7652 | if (wdev) { |
7653 | if (nla_put_u64(skb, NL80211_ATTR_WDEV, | |
7654 | wdev_id(wdev))) | |
7655 | goto nla_put_failure; | |
7656 | if (wdev->netdev && | |
7657 | nla_put_u32(skb, NL80211_ATTR_IFINDEX, | |
7658 | wdev->netdev->ifindex)) | |
7659 | goto nla_put_failure; | |
7660 | } | |
7661 | ||
ad7e718c JB |
7662 | data = nla_nest_start(skb, attr); |
7663 | ||
7664 | ((void **)skb->cb)[0] = rdev; | |
7665 | ((void **)skb->cb)[1] = hdr; | |
7666 | ((void **)skb->cb)[2] = data; | |
7667 | ||
7668 | return skb; | |
7669 | ||
7670 | nla_put_failure: | |
7671 | kfree_skb(skb); | |
7672 | return NULL; | |
7673 | } | |
f4e583c8 | 7674 | |
e03ad6ea | 7675 | struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy, |
6c09e791 | 7676 | struct wireless_dev *wdev, |
e03ad6ea JB |
7677 | enum nl80211_commands cmd, |
7678 | enum nl80211_attrs attr, | |
7679 | int vendor_event_idx, | |
7680 | int approxlen, gfp_t gfp) | |
7681 | { | |
f26cbf40 | 7682 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
e03ad6ea JB |
7683 | const struct nl80211_vendor_cmd_info *info; |
7684 | ||
7685 | switch (cmd) { | |
7686 | case NL80211_CMD_TESTMODE: | |
7687 | if (WARN_ON(vendor_event_idx != -1)) | |
7688 | return NULL; | |
7689 | info = NULL; | |
7690 | break; | |
7691 | case NL80211_CMD_VENDOR: | |
7692 | if (WARN_ON(vendor_event_idx < 0 || | |
7693 | vendor_event_idx >= wiphy->n_vendor_events)) | |
7694 | return NULL; | |
7695 | info = &wiphy->vendor_events[vendor_event_idx]; | |
7696 | break; | |
7697 | default: | |
7698 | WARN_ON(1); | |
7699 | return NULL; | |
7700 | } | |
7701 | ||
6c09e791 | 7702 | return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0, |
e03ad6ea JB |
7703 | cmd, attr, info, gfp); |
7704 | } | |
7705 | EXPORT_SYMBOL(__cfg80211_alloc_event_skb); | |
7706 | ||
7707 | void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp) | |
7708 | { | |
7709 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
7710 | void *hdr = ((void **)skb->cb)[1]; | |
7711 | struct nlattr *data = ((void **)skb->cb)[2]; | |
7712 | enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE; | |
7713 | ||
bd8c78e7 JB |
7714 | /* clear CB data for netlink core to own from now on */ |
7715 | memset(skb->cb, 0, sizeof(skb->cb)); | |
7716 | ||
e03ad6ea JB |
7717 | nla_nest_end(skb, data); |
7718 | genlmsg_end(skb, hdr); | |
7719 | ||
7720 | if (data->nla_type == NL80211_ATTR_VENDOR_DATA) | |
7721 | mcgrp = NL80211_MCGRP_VENDOR; | |
7722 | ||
7723 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0, | |
7724 | mcgrp, gfp); | |
7725 | } | |
7726 | EXPORT_SYMBOL(__cfg80211_send_event_skb); | |
7727 | ||
aff89a9b | 7728 | #ifdef CONFIG_NL80211_TESTMODE |
aff89a9b JB |
7729 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) |
7730 | { | |
4c476991 | 7731 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fc73f11f DS |
7732 | struct wireless_dev *wdev = |
7733 | __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs); | |
aff89a9b JB |
7734 | int err; |
7735 | ||
fc73f11f DS |
7736 | if (!rdev->ops->testmode_cmd) |
7737 | return -EOPNOTSUPP; | |
7738 | ||
7739 | if (IS_ERR(wdev)) { | |
7740 | err = PTR_ERR(wdev); | |
7741 | if (err != -EINVAL) | |
7742 | return err; | |
7743 | wdev = NULL; | |
7744 | } else if (wdev->wiphy != &rdev->wiphy) { | |
7745 | return -EINVAL; | |
7746 | } | |
7747 | ||
aff89a9b JB |
7748 | if (!info->attrs[NL80211_ATTR_TESTDATA]) |
7749 | return -EINVAL; | |
7750 | ||
ad7e718c | 7751 | rdev->cur_cmd_info = info; |
fc73f11f | 7752 | err = rdev_testmode_cmd(rdev, wdev, |
aff89a9b JB |
7753 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), |
7754 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
ad7e718c | 7755 | rdev->cur_cmd_info = NULL; |
aff89a9b | 7756 | |
aff89a9b JB |
7757 | return err; |
7758 | } | |
7759 | ||
71063f0e WYG |
7760 | static int nl80211_testmode_dump(struct sk_buff *skb, |
7761 | struct netlink_callback *cb) | |
7762 | { | |
00918d33 | 7763 | struct cfg80211_registered_device *rdev; |
71063f0e WYG |
7764 | int err; |
7765 | long phy_idx; | |
7766 | void *data = NULL; | |
7767 | int data_len = 0; | |
7768 | ||
5fe231e8 JB |
7769 | rtnl_lock(); |
7770 | ||
71063f0e WYG |
7771 | if (cb->args[0]) { |
7772 | /* | |
7773 | * 0 is a valid index, but not valid for args[0], | |
7774 | * so we need to offset by 1. | |
7775 | */ | |
7776 | phy_idx = cb->args[0] - 1; | |
7777 | } else { | |
7778 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
7779 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
7780 | nl80211_policy); | |
7781 | if (err) | |
5fe231e8 | 7782 | goto out_err; |
00918d33 | 7783 | |
2bd7e35d JB |
7784 | rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), |
7785 | nl80211_fam.attrbuf); | |
7786 | if (IS_ERR(rdev)) { | |
5fe231e8 JB |
7787 | err = PTR_ERR(rdev); |
7788 | goto out_err; | |
00918d33 | 7789 | } |
2bd7e35d JB |
7790 | phy_idx = rdev->wiphy_idx; |
7791 | rdev = NULL; | |
2bd7e35d | 7792 | |
71063f0e WYG |
7793 | if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]) |
7794 | cb->args[1] = | |
7795 | (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA]; | |
7796 | } | |
7797 | ||
7798 | if (cb->args[1]) { | |
7799 | data = nla_data((void *)cb->args[1]); | |
7800 | data_len = nla_len((void *)cb->args[1]); | |
7801 | } | |
7802 | ||
00918d33 JB |
7803 | rdev = cfg80211_rdev_by_wiphy_idx(phy_idx); |
7804 | if (!rdev) { | |
5fe231e8 JB |
7805 | err = -ENOENT; |
7806 | goto out_err; | |
71063f0e | 7807 | } |
71063f0e | 7808 | |
00918d33 | 7809 | if (!rdev->ops->testmode_dump) { |
71063f0e WYG |
7810 | err = -EOPNOTSUPP; |
7811 | goto out_err; | |
7812 | } | |
7813 | ||
7814 | while (1) { | |
15e47304 | 7815 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, |
71063f0e WYG |
7816 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
7817 | NL80211_CMD_TESTMODE); | |
7818 | struct nlattr *tmdata; | |
7819 | ||
cb35fba3 DC |
7820 | if (!hdr) |
7821 | break; | |
7822 | ||
9360ffd1 | 7823 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) { |
71063f0e WYG |
7824 | genlmsg_cancel(skb, hdr); |
7825 | break; | |
7826 | } | |
7827 | ||
7828 | tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
7829 | if (!tmdata) { | |
7830 | genlmsg_cancel(skb, hdr); | |
7831 | break; | |
7832 | } | |
e35e4d28 | 7833 | err = rdev_testmode_dump(rdev, skb, cb, data, data_len); |
71063f0e WYG |
7834 | nla_nest_end(skb, tmdata); |
7835 | ||
7836 | if (err == -ENOBUFS || err == -ENOENT) { | |
7837 | genlmsg_cancel(skb, hdr); | |
7838 | break; | |
7839 | } else if (err) { | |
7840 | genlmsg_cancel(skb, hdr); | |
7841 | goto out_err; | |
7842 | } | |
7843 | ||
7844 | genlmsg_end(skb, hdr); | |
7845 | } | |
7846 | ||
7847 | err = skb->len; | |
7848 | /* see above */ | |
7849 | cb->args[0] = phy_idx + 1; | |
7850 | out_err: | |
5fe231e8 | 7851 | rtnl_unlock(); |
71063f0e WYG |
7852 | return err; |
7853 | } | |
aff89a9b JB |
7854 | #endif |
7855 | ||
b23aa676 SO |
7856 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
7857 | { | |
4c476991 JB |
7858 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
7859 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
7860 | struct cfg80211_connect_params connect; |
7861 | struct wiphy *wiphy; | |
fffd0934 | 7862 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
7863 | int err; |
7864 | ||
7865 | memset(&connect, 0, sizeof(connect)); | |
7866 | ||
7867 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
7868 | return -EINVAL; | |
7869 | ||
7870 | if (!info->attrs[NL80211_ATTR_SSID] || | |
7871 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
7872 | return -EINVAL; | |
7873 | ||
7874 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
7875 | connect.auth_type = | |
7876 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
e39e5b5e JM |
7877 | if (!nl80211_valid_auth_type(rdev, connect.auth_type, |
7878 | NL80211_CMD_CONNECT)) | |
b23aa676 SO |
7879 | return -EINVAL; |
7880 | } else | |
7881 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
7882 | ||
7883 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
7884 | ||
c0692b8f | 7885 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 7886 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
7887 | if (err) |
7888 | return err; | |
b23aa676 | 7889 | |
074ac8df | 7890 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
7891 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
7892 | return -EOPNOTSUPP; | |
b23aa676 | 7893 | |
79c97e97 | 7894 | wiphy = &rdev->wiphy; |
b23aa676 | 7895 | |
4486ea98 BS |
7896 | connect.bg_scan_period = -1; |
7897 | if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] && | |
7898 | (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) { | |
7899 | connect.bg_scan_period = | |
7900 | nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]); | |
7901 | } | |
7902 | ||
b23aa676 SO |
7903 | if (info->attrs[NL80211_ATTR_MAC]) |
7904 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1df4a510 JM |
7905 | else if (info->attrs[NL80211_ATTR_MAC_HINT]) |
7906 | connect.bssid_hint = | |
7907 | nla_data(info->attrs[NL80211_ATTR_MAC_HINT]); | |
b23aa676 SO |
7908 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
7909 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
7910 | ||
7911 | if (info->attrs[NL80211_ATTR_IE]) { | |
7912 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
7913 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
7914 | } | |
7915 | ||
cee00a95 JM |
7916 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
7917 | connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); | |
7918 | if (connect.mfp != NL80211_MFP_REQUIRED && | |
7919 | connect.mfp != NL80211_MFP_NO) | |
7920 | return -EINVAL; | |
7921 | } else { | |
7922 | connect.mfp = NL80211_MFP_NO; | |
7923 | } | |
7924 | ||
b23aa676 | 7925 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
664834de JM |
7926 | connect.channel = nl80211_get_valid_chan( |
7927 | wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
7928 | if (!connect.channel) | |
1df4a510 JM |
7929 | return -EINVAL; |
7930 | } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) { | |
664834de JM |
7931 | connect.channel_hint = nl80211_get_valid_chan( |
7932 | wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]); | |
7933 | if (!connect.channel_hint) | |
4c476991 | 7934 | return -EINVAL; |
b23aa676 SO |
7935 | } |
7936 | ||
fffd0934 JB |
7937 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
7938 | connkeys = nl80211_parse_connkeys(rdev, | |
de7044ee | 7939 | info->attrs[NL80211_ATTR_KEYS], NULL); |
4c476991 JB |
7940 | if (IS_ERR(connkeys)) |
7941 | return PTR_ERR(connkeys); | |
fffd0934 JB |
7942 | } |
7943 | ||
7e7c8926 BG |
7944 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT])) |
7945 | connect.flags |= ASSOC_REQ_DISABLE_HT; | |
7946 | ||
7947 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) | |
7948 | memcpy(&connect.ht_capa_mask, | |
7949 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]), | |
7950 | sizeof(connect.ht_capa_mask)); | |
7951 | ||
7952 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) { | |
b4e4f47e | 7953 | if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) { |
b47f610b | 7954 | kzfree(connkeys); |
7e7c8926 | 7955 | return -EINVAL; |
b4e4f47e | 7956 | } |
7e7c8926 BG |
7957 | memcpy(&connect.ht_capa, |
7958 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]), | |
7959 | sizeof(connect.ht_capa)); | |
7960 | } | |
7961 | ||
ee2aca34 JB |
7962 | if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT])) |
7963 | connect.flags |= ASSOC_REQ_DISABLE_VHT; | |
7964 | ||
7965 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) | |
7966 | memcpy(&connect.vht_capa_mask, | |
7967 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]), | |
7968 | sizeof(connect.vht_capa_mask)); | |
7969 | ||
7970 | if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) { | |
7971 | if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) { | |
b47f610b | 7972 | kzfree(connkeys); |
ee2aca34 JB |
7973 | return -EINVAL; |
7974 | } | |
7975 | memcpy(&connect.vht_capa, | |
7976 | nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]), | |
7977 | sizeof(connect.vht_capa)); | |
7978 | } | |
7979 | ||
bab5ab7d | 7980 | if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) { |
0c9ca11b BL |
7981 | if (!((rdev->wiphy.features & |
7982 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) && | |
7983 | (rdev->wiphy.features & NL80211_FEATURE_QUIET)) && | |
7984 | !wiphy_ext_feature_isset(&rdev->wiphy, | |
7985 | NL80211_EXT_FEATURE_RRM)) { | |
707554b4 | 7986 | kzfree(connkeys); |
bab5ab7d | 7987 | return -EINVAL; |
707554b4 | 7988 | } |
bab5ab7d AK |
7989 | connect.flags |= ASSOC_REQ_USE_RRM; |
7990 | } | |
7991 | ||
34d50519 LD |
7992 | connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]); |
7993 | if (connect.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ]) { | |
7994 | kzfree(connkeys); | |
7995 | return -EOPNOTSUPP; | |
7996 | } | |
7997 | ||
83739b03 JB |
7998 | wdev_lock(dev->ieee80211_ptr); |
7999 | err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL); | |
8000 | wdev_unlock(dev->ieee80211_ptr); | |
fffd0934 | 8001 | if (err) |
b47f610b | 8002 | kzfree(connkeys); |
b23aa676 SO |
8003 | return err; |
8004 | } | |
8005 | ||
8006 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
8007 | { | |
4c476991 JB |
8008 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8009 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 | 8010 | u16 reason; |
83739b03 | 8011 | int ret; |
b23aa676 SO |
8012 | |
8013 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
8014 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
8015 | else | |
8016 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
8017 | ||
8018 | if (reason == 0) | |
8019 | return -EINVAL; | |
8020 | ||
074ac8df | 8021 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
8022 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
8023 | return -EOPNOTSUPP; | |
b23aa676 | 8024 | |
83739b03 JB |
8025 | wdev_lock(dev->ieee80211_ptr); |
8026 | ret = cfg80211_disconnect(rdev, dev, reason, true); | |
8027 | wdev_unlock(dev->ieee80211_ptr); | |
8028 | return ret; | |
b23aa676 SO |
8029 | } |
8030 | ||
463d0183 JB |
8031 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
8032 | { | |
4c476991 | 8033 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
8034 | struct net *net; |
8035 | int err; | |
463d0183 | 8036 | |
4b681c82 VK |
8037 | if (info->attrs[NL80211_ATTR_PID]) { |
8038 | u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
8039 | ||
8040 | net = get_net_ns_by_pid(pid); | |
8041 | } else if (info->attrs[NL80211_ATTR_NETNS_FD]) { | |
8042 | u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]); | |
463d0183 | 8043 | |
4b681c82 VK |
8044 | net = get_net_ns_by_fd(fd); |
8045 | } else { | |
8046 | return -EINVAL; | |
8047 | } | |
463d0183 | 8048 | |
4c476991 JB |
8049 | if (IS_ERR(net)) |
8050 | return PTR_ERR(net); | |
463d0183 JB |
8051 | |
8052 | err = 0; | |
8053 | ||
8054 | /* check if anything to do */ | |
4c476991 JB |
8055 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
8056 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 8057 | |
463d0183 | 8058 | put_net(net); |
463d0183 JB |
8059 | return err; |
8060 | } | |
8061 | ||
67fbb16b SO |
8062 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
8063 | { | |
4c476991 | 8064 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
8065 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
8066 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 8067 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
8068 | struct cfg80211_pmksa pmksa; |
8069 | ||
8070 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
8071 | ||
8072 | if (!info->attrs[NL80211_ATTR_MAC]) | |
8073 | return -EINVAL; | |
8074 | ||
8075 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
8076 | return -EINVAL; | |
8077 | ||
67fbb16b SO |
8078 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
8079 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
8080 | ||
074ac8df | 8081 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
8082 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
8083 | return -EOPNOTSUPP; | |
67fbb16b SO |
8084 | |
8085 | switch (info->genlhdr->cmd) { | |
8086 | case NL80211_CMD_SET_PMKSA: | |
8087 | rdev_ops = rdev->ops->set_pmksa; | |
8088 | break; | |
8089 | case NL80211_CMD_DEL_PMKSA: | |
8090 | rdev_ops = rdev->ops->del_pmksa; | |
8091 | break; | |
8092 | default: | |
8093 | WARN_ON(1); | |
8094 | break; | |
8095 | } | |
8096 | ||
4c476991 JB |
8097 | if (!rdev_ops) |
8098 | return -EOPNOTSUPP; | |
67fbb16b | 8099 | |
4c476991 | 8100 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
8101 | } |
8102 | ||
8103 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
8104 | { | |
4c476991 JB |
8105 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
8106 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 8107 | |
074ac8df | 8108 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
8109 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
8110 | return -EOPNOTSUPP; | |
67fbb16b | 8111 | |
4c476991 JB |
8112 | if (!rdev->ops->flush_pmksa) |
8113 | return -EOPNOTSUPP; | |
67fbb16b | 8114 | |
e35e4d28 | 8115 | return rdev_flush_pmksa(rdev, dev); |
67fbb16b SO |
8116 | } |
8117 | ||
109086ce AN |
8118 | static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) |
8119 | { | |
8120 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8121 | struct net_device *dev = info->user_ptr[1]; | |
8122 | u8 action_code, dialog_token; | |
df942e7b | 8123 | u32 peer_capability = 0; |
109086ce AN |
8124 | u16 status_code; |
8125 | u8 *peer; | |
31fa97c5 | 8126 | bool initiator; |
109086ce AN |
8127 | |
8128 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
8129 | !rdev->ops->tdls_mgmt) | |
8130 | return -EOPNOTSUPP; | |
8131 | ||
8132 | if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || | |
8133 | !info->attrs[NL80211_ATTR_STATUS_CODE] || | |
8134 | !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || | |
8135 | !info->attrs[NL80211_ATTR_IE] || | |
8136 | !info->attrs[NL80211_ATTR_MAC]) | |
8137 | return -EINVAL; | |
8138 | ||
8139 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
8140 | action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); | |
8141 | status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); | |
8142 | dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); | |
31fa97c5 | 8143 | initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]); |
df942e7b SDU |
8144 | if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]) |
8145 | peer_capability = | |
8146 | nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]); | |
109086ce | 8147 | |
e35e4d28 | 8148 | return rdev_tdls_mgmt(rdev, dev, peer, action_code, |
df942e7b | 8149 | dialog_token, status_code, peer_capability, |
31fa97c5 | 8150 | initiator, |
e35e4d28 HG |
8151 | nla_data(info->attrs[NL80211_ATTR_IE]), |
8152 | nla_len(info->attrs[NL80211_ATTR_IE])); | |
109086ce AN |
8153 | } |
8154 | ||
8155 | static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) | |
8156 | { | |
8157 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8158 | struct net_device *dev = info->user_ptr[1]; | |
8159 | enum nl80211_tdls_operation operation; | |
8160 | u8 *peer; | |
8161 | ||
8162 | if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || | |
8163 | !rdev->ops->tdls_oper) | |
8164 | return -EOPNOTSUPP; | |
8165 | ||
8166 | if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || | |
8167 | !info->attrs[NL80211_ATTR_MAC]) | |
8168 | return -EINVAL; | |
8169 | ||
8170 | operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); | |
8171 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
8172 | ||
e35e4d28 | 8173 | return rdev_tdls_oper(rdev, dev, peer, operation); |
109086ce AN |
8174 | } |
8175 | ||
9588bbd5 JM |
8176 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
8177 | struct genl_info *info) | |
8178 | { | |
4c476991 | 8179 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 8180 | struct wireless_dev *wdev = info->user_ptr[1]; |
683b6d3b | 8181 | struct cfg80211_chan_def chandef; |
9588bbd5 JM |
8182 | struct sk_buff *msg; |
8183 | void *hdr; | |
8184 | u64 cookie; | |
683b6d3b | 8185 | u32 duration; |
9588bbd5 JM |
8186 | int err; |
8187 | ||
8188 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
8189 | !info->attrs[NL80211_ATTR_DURATION]) | |
8190 | return -EINVAL; | |
8191 | ||
8192 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
8193 | ||
ebf348fc JB |
8194 | if (!rdev->ops->remain_on_channel || |
8195 | !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) | |
8196 | return -EOPNOTSUPP; | |
8197 | ||
9588bbd5 | 8198 | /* |
ebf348fc JB |
8199 | * We should be on that channel for at least a minimum amount of |
8200 | * time (10ms) but no longer than the driver supports. | |
9588bbd5 | 8201 | */ |
ebf348fc | 8202 | if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
a293911d | 8203 | duration > rdev->wiphy.max_remain_on_channel_duration) |
9588bbd5 JM |
8204 | return -EINVAL; |
8205 | ||
683b6d3b JB |
8206 | err = nl80211_parse_chandef(rdev, info, &chandef); |
8207 | if (err) | |
8208 | return err; | |
9588bbd5 JM |
8209 | |
8210 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
8211 | if (!msg) |
8212 | return -ENOMEM; | |
9588bbd5 | 8213 | |
15e47304 | 8214 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
9588bbd5 | 8215 | NL80211_CMD_REMAIN_ON_CHANNEL); |
cb35fba3 DC |
8216 | if (!hdr) { |
8217 | err = -ENOBUFS; | |
9588bbd5 JM |
8218 | goto free_msg; |
8219 | } | |
8220 | ||
683b6d3b JB |
8221 | err = rdev_remain_on_channel(rdev, wdev, chandef.chan, |
8222 | duration, &cookie); | |
9588bbd5 JM |
8223 | |
8224 | if (err) | |
8225 | goto free_msg; | |
8226 | ||
9360ffd1 DM |
8227 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
8228 | goto nla_put_failure; | |
9588bbd5 JM |
8229 | |
8230 | genlmsg_end(msg, hdr); | |
4c476991 JB |
8231 | |
8232 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
8233 | |
8234 | nla_put_failure: | |
8235 | err = -ENOBUFS; | |
8236 | free_msg: | |
8237 | nlmsg_free(msg); | |
9588bbd5 JM |
8238 | return err; |
8239 | } | |
8240 | ||
8241 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
8242 | struct genl_info *info) | |
8243 | { | |
4c476991 | 8244 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 8245 | struct wireless_dev *wdev = info->user_ptr[1]; |
9588bbd5 | 8246 | u64 cookie; |
9588bbd5 JM |
8247 | |
8248 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
8249 | return -EINVAL; | |
8250 | ||
4c476991 JB |
8251 | if (!rdev->ops->cancel_remain_on_channel) |
8252 | return -EOPNOTSUPP; | |
9588bbd5 | 8253 | |
9588bbd5 JM |
8254 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
8255 | ||
e35e4d28 | 8256 | return rdev_cancel_remain_on_channel(rdev, wdev, cookie); |
9588bbd5 JM |
8257 | } |
8258 | ||
13ae75b1 JM |
8259 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
8260 | u8 *rates, u8 rates_len) | |
8261 | { | |
8262 | u8 i; | |
8263 | u32 mask = 0; | |
8264 | ||
8265 | for (i = 0; i < rates_len; i++) { | |
8266 | int rate = (rates[i] & 0x7f) * 5; | |
8267 | int ridx; | |
8268 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
8269 | struct ieee80211_rate *srate = | |
8270 | &sband->bitrates[ridx]; | |
8271 | if (rate == srate->bitrate) { | |
8272 | mask |= 1 << ridx; | |
8273 | break; | |
8274 | } | |
8275 | } | |
8276 | if (ridx == sband->n_bitrates) | |
8277 | return 0; /* rate not found */ | |
8278 | } | |
8279 | ||
8280 | return mask; | |
8281 | } | |
8282 | ||
24db78c0 SW |
8283 | static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband, |
8284 | u8 *rates, u8 rates_len, | |
8285 | u8 mcs[IEEE80211_HT_MCS_MASK_LEN]) | |
8286 | { | |
8287 | u8 i; | |
8288 | ||
8289 | memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN); | |
8290 | ||
8291 | for (i = 0; i < rates_len; i++) { | |
8292 | int ridx, rbit; | |
8293 | ||
8294 | ridx = rates[i] / 8; | |
8295 | rbit = BIT(rates[i] % 8); | |
8296 | ||
8297 | /* check validity */ | |
910570b5 | 8298 | if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN)) |
24db78c0 SW |
8299 | return false; |
8300 | ||
8301 | /* check availability */ | |
8302 | if (sband->ht_cap.mcs.rx_mask[ridx] & rbit) | |
8303 | mcs[ridx] |= rbit; | |
8304 | else | |
8305 | return false; | |
8306 | } | |
8307 | ||
8308 | return true; | |
8309 | } | |
8310 | ||
204e35a9 JD |
8311 | static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map) |
8312 | { | |
8313 | u16 mcs_mask = 0; | |
8314 | ||
8315 | switch (vht_mcs_map) { | |
8316 | case IEEE80211_VHT_MCS_NOT_SUPPORTED: | |
8317 | break; | |
8318 | case IEEE80211_VHT_MCS_SUPPORT_0_7: | |
8319 | mcs_mask = 0x00FF; | |
8320 | break; | |
8321 | case IEEE80211_VHT_MCS_SUPPORT_0_8: | |
8322 | mcs_mask = 0x01FF; | |
8323 | break; | |
8324 | case IEEE80211_VHT_MCS_SUPPORT_0_9: | |
8325 | mcs_mask = 0x03FF; | |
8326 | break; | |
8327 | default: | |
8328 | break; | |
8329 | } | |
8330 | ||
8331 | return mcs_mask; | |
8332 | } | |
8333 | ||
8334 | static void vht_build_mcs_mask(u16 vht_mcs_map, | |
8335 | u16 vht_mcs_mask[NL80211_VHT_NSS_MAX]) | |
8336 | { | |
8337 | u8 nss; | |
8338 | ||
8339 | for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) { | |
8340 | vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03); | |
8341 | vht_mcs_map >>= 2; | |
8342 | } | |
8343 | } | |
8344 | ||
8345 | static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband, | |
8346 | struct nl80211_txrate_vht *txrate, | |
8347 | u16 mcs[NL80211_VHT_NSS_MAX]) | |
8348 | { | |
8349 | u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); | |
8350 | u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {}; | |
8351 | u8 i; | |
8352 | ||
8353 | if (!sband->vht_cap.vht_supported) | |
8354 | return false; | |
8355 | ||
8356 | memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX); | |
8357 | ||
8358 | /* Build vht_mcs_mask from VHT capabilities */ | |
8359 | vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask); | |
8360 | ||
8361 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) { | |
8362 | if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i]) | |
8363 | mcs[i] = txrate->mcs[i]; | |
8364 | else | |
8365 | return false; | |
8366 | } | |
8367 | ||
8368 | return true; | |
8369 | } | |
8370 | ||
b54452b0 | 8371 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
8372 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
8373 | .len = NL80211_MAX_SUPP_RATES }, | |
d1e33e65 JD |
8374 | [NL80211_TXRATE_HT] = { .type = NLA_BINARY, |
8375 | .len = NL80211_MAX_SUPP_HT_RATES }, | |
204e35a9 | 8376 | [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)}, |
0b9323f6 | 8377 | [NL80211_TXRATE_GI] = { .type = NLA_U8 }, |
13ae75b1 JM |
8378 | }; |
8379 | ||
8380 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
8381 | struct genl_info *info) | |
8382 | { | |
8383 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 8384 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 8385 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
8386 | int rem, i; |
8387 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
8388 | struct nlattr *tx_rates; |
8389 | struct ieee80211_supported_band *sband; | |
204e35a9 | 8390 | u16 vht_tx_mcs_map; |
13ae75b1 | 8391 | |
4c476991 JB |
8392 | if (!rdev->ops->set_bitrate_mask) |
8393 | return -EOPNOTSUPP; | |
13ae75b1 JM |
8394 | |
8395 | memset(&mask, 0, sizeof(mask)); | |
8396 | /* Default to all rates enabled */ | |
8397 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
8398 | sband = rdev->wiphy.bands[i]; | |
7869303b JD |
8399 | |
8400 | if (!sband) | |
8401 | continue; | |
8402 | ||
8403 | mask.control[i].legacy = (1 << sband->n_bitrates) - 1; | |
d1e33e65 | 8404 | memcpy(mask.control[i].ht_mcs, |
7869303b | 8405 | sband->ht_cap.mcs.rx_mask, |
d1e33e65 | 8406 | sizeof(mask.control[i].ht_mcs)); |
204e35a9 JD |
8407 | |
8408 | if (!sband->vht_cap.vht_supported) | |
8409 | continue; | |
8410 | ||
8411 | vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map); | |
8412 | vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs); | |
13ae75b1 JM |
8413 | } |
8414 | ||
b9243ab0 JD |
8415 | /* if no rates are given set it back to the defaults */ |
8416 | if (!info->attrs[NL80211_ATTR_TX_RATES]) | |
8417 | goto out; | |
8418 | ||
13ae75b1 JM |
8419 | /* |
8420 | * The nested attribute uses enum nl80211_band as the index. This maps | |
8421 | * directly to the enum ieee80211_band values used in cfg80211. | |
8422 | */ | |
24db78c0 | 8423 | BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); |
ae811e21 | 8424 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) { |
13ae75b1 | 8425 | enum ieee80211_band band = nla_type(tx_rates); |
ae811e21 JB |
8426 | int err; |
8427 | ||
4c476991 JB |
8428 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
8429 | return -EINVAL; | |
13ae75b1 | 8430 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
8431 | if (sband == NULL) |
8432 | return -EINVAL; | |
ae811e21 JB |
8433 | err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
8434 | nla_len(tx_rates), nl80211_txattr_policy); | |
8435 | if (err) | |
8436 | return err; | |
13ae75b1 JM |
8437 | if (tb[NL80211_TXRATE_LEGACY]) { |
8438 | mask.control[band].legacy = rateset_to_mask( | |
8439 | sband, | |
8440 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
8441 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
218d2e26 BS |
8442 | if ((mask.control[band].legacy == 0) && |
8443 | nla_len(tb[NL80211_TXRATE_LEGACY])) | |
8444 | return -EINVAL; | |
24db78c0 | 8445 | } |
d1e33e65 | 8446 | if (tb[NL80211_TXRATE_HT]) { |
24db78c0 SW |
8447 | if (!ht_rateset_to_mask( |
8448 | sband, | |
d1e33e65 JD |
8449 | nla_data(tb[NL80211_TXRATE_HT]), |
8450 | nla_len(tb[NL80211_TXRATE_HT]), | |
8451 | mask.control[band].ht_mcs)) | |
24db78c0 SW |
8452 | return -EINVAL; |
8453 | } | |
204e35a9 JD |
8454 | if (tb[NL80211_TXRATE_VHT]) { |
8455 | if (!vht_set_mcs_mask( | |
8456 | sband, | |
8457 | nla_data(tb[NL80211_TXRATE_VHT]), | |
8458 | mask.control[band].vht_mcs)) | |
8459 | return -EINVAL; | |
8460 | } | |
0b9323f6 JD |
8461 | if (tb[NL80211_TXRATE_GI]) { |
8462 | mask.control[band].gi = | |
8463 | nla_get_u8(tb[NL80211_TXRATE_GI]); | |
8464 | if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI) | |
8465 | return -EINVAL; | |
8466 | } | |
24db78c0 SW |
8467 | |
8468 | if (mask.control[band].legacy == 0) { | |
204e35a9 JD |
8469 | /* don't allow empty legacy rates if HT or VHT |
8470 | * are not even supported. | |
8471 | */ | |
8472 | if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported || | |
8473 | rdev->wiphy.bands[band]->vht_cap.vht_supported)) | |
24db78c0 SW |
8474 | return -EINVAL; |
8475 | ||
8476 | for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) | |
d1e33e65 | 8477 | if (mask.control[band].ht_mcs[i]) |
204e35a9 JD |
8478 | goto out; |
8479 | ||
8480 | for (i = 0; i < NL80211_VHT_NSS_MAX; i++) | |
8481 | if (mask.control[band].vht_mcs[i]) | |
8482 | goto out; | |
24db78c0 SW |
8483 | |
8484 | /* legacy and mcs rates may not be both empty */ | |
204e35a9 | 8485 | return -EINVAL; |
13ae75b1 JM |
8486 | } |
8487 | } | |
8488 | ||
b9243ab0 | 8489 | out: |
e35e4d28 | 8490 | return rdev_set_bitrate_mask(rdev, dev, NULL, &mask); |
13ae75b1 JM |
8491 | } |
8492 | ||
2e161f78 | 8493 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 8494 | { |
4c476991 | 8495 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 8496 | struct wireless_dev *wdev = info->user_ptr[1]; |
2e161f78 | 8497 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
8498 | |
8499 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
8500 | return -EINVAL; | |
8501 | ||
2e161f78 JB |
8502 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
8503 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 8504 | |
71bbc994 JB |
8505 | switch (wdev->iftype) { |
8506 | case NL80211_IFTYPE_STATION: | |
8507 | case NL80211_IFTYPE_ADHOC: | |
8508 | case NL80211_IFTYPE_P2P_CLIENT: | |
8509 | case NL80211_IFTYPE_AP: | |
8510 | case NL80211_IFTYPE_AP_VLAN: | |
8511 | case NL80211_IFTYPE_MESH_POINT: | |
8512 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 8513 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
8514 | break; |
8515 | default: | |
4c476991 | 8516 | return -EOPNOTSUPP; |
71bbc994 | 8517 | } |
026331c4 JM |
8518 | |
8519 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
8520 | if (!rdev->ops->mgmt_tx) |
8521 | return -EOPNOTSUPP; | |
026331c4 | 8522 | |
15e47304 | 8523 | return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type, |
026331c4 JM |
8524 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
8525 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
8526 | } |
8527 | ||
2e161f78 | 8528 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 8529 | { |
4c476991 | 8530 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
71bbc994 | 8531 | struct wireless_dev *wdev = info->user_ptr[1]; |
683b6d3b | 8532 | struct cfg80211_chan_def chandef; |
026331c4 | 8533 | int err; |
d64d373f | 8534 | void *hdr = NULL; |
026331c4 | 8535 | u64 cookie; |
e247bd90 | 8536 | struct sk_buff *msg = NULL; |
b176e629 AO |
8537 | struct cfg80211_mgmt_tx_params params = { |
8538 | .dont_wait_for_ack = | |
8539 | info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK], | |
8540 | }; | |
026331c4 | 8541 | |
683b6d3b | 8542 | if (!info->attrs[NL80211_ATTR_FRAME]) |
026331c4 JM |
8543 | return -EINVAL; |
8544 | ||
4c476991 JB |
8545 | if (!rdev->ops->mgmt_tx) |
8546 | return -EOPNOTSUPP; | |
026331c4 | 8547 | |
71bbc994 | 8548 | switch (wdev->iftype) { |
ea141b75 AQ |
8549 | case NL80211_IFTYPE_P2P_DEVICE: |
8550 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
8551 | return -EINVAL; | |
71bbc994 JB |
8552 | case NL80211_IFTYPE_STATION: |
8553 | case NL80211_IFTYPE_ADHOC: | |
8554 | case NL80211_IFTYPE_P2P_CLIENT: | |
8555 | case NL80211_IFTYPE_AP: | |
8556 | case NL80211_IFTYPE_AP_VLAN: | |
8557 | case NL80211_IFTYPE_MESH_POINT: | |
8558 | case NL80211_IFTYPE_P2P_GO: | |
8559 | break; | |
8560 | default: | |
4c476991 | 8561 | return -EOPNOTSUPP; |
71bbc994 | 8562 | } |
026331c4 | 8563 | |
f7ca38df | 8564 | if (info->attrs[NL80211_ATTR_DURATION]) { |
7c4ef712 | 8565 | if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
f7ca38df | 8566 | return -EINVAL; |
b176e629 | 8567 | params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); |
ebf348fc JB |
8568 | |
8569 | /* | |
8570 | * We should wait on the channel for at least a minimum amount | |
8571 | * of time (10ms) but no longer than the driver supports. | |
8572 | */ | |
b176e629 AO |
8573 | if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || |
8574 | params.wait > rdev->wiphy.max_remain_on_channel_duration) | |
ebf348fc JB |
8575 | return -EINVAL; |
8576 | ||
f7ca38df JB |
8577 | } |
8578 | ||
b176e629 | 8579 | params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
f7ca38df | 8580 | |
b176e629 | 8581 | if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) |
7c4ef712 JB |
8582 | return -EINVAL; |
8583 | ||
b176e629 | 8584 | params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); |
e9f935e3 | 8585 | |
ea141b75 AQ |
8586 | /* get the channel if any has been specified, otherwise pass NULL to |
8587 | * the driver. The latter will use the current one | |
8588 | */ | |
8589 | chandef.chan = NULL; | |
8590 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
8591 | err = nl80211_parse_chandef(rdev, info, &chandef); | |
8592 | if (err) | |
8593 | return err; | |
8594 | } | |
8595 | ||
b176e629 | 8596 | if (!chandef.chan && params.offchan) |
ea141b75 | 8597 | return -EINVAL; |
026331c4 | 8598 | |
34d22ce2 AO |
8599 | params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); |
8600 | params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]); | |
8601 | ||
8602 | if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) { | |
8603 | int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); | |
8604 | int i; | |
8605 | ||
8606 | if (len % sizeof(u16)) | |
8607 | return -EINVAL; | |
8608 | ||
8609 | params.n_csa_offsets = len / sizeof(u16); | |
8610 | params.csa_offsets = | |
8611 | nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); | |
8612 | ||
8613 | /* check that all the offsets fit the frame */ | |
8614 | for (i = 0; i < params.n_csa_offsets; i++) { | |
8615 | if (params.csa_offsets[i] >= params.len) | |
8616 | return -EINVAL; | |
8617 | } | |
8618 | } | |
8619 | ||
b176e629 | 8620 | if (!params.dont_wait_for_ack) { |
e247bd90 JB |
8621 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
8622 | if (!msg) | |
8623 | return -ENOMEM; | |
026331c4 | 8624 | |
15e47304 | 8625 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
e247bd90 | 8626 | NL80211_CMD_FRAME); |
cb35fba3 DC |
8627 | if (!hdr) { |
8628 | err = -ENOBUFS; | |
e247bd90 JB |
8629 | goto free_msg; |
8630 | } | |
026331c4 | 8631 | } |
e247bd90 | 8632 | |
b176e629 AO |
8633 | params.chan = chandef.chan; |
8634 | err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie); | |
026331c4 JM |
8635 | if (err) |
8636 | goto free_msg; | |
8637 | ||
e247bd90 | 8638 | if (msg) { |
9360ffd1 DM |
8639 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
8640 | goto nla_put_failure; | |
026331c4 | 8641 | |
e247bd90 JB |
8642 | genlmsg_end(msg, hdr); |
8643 | return genlmsg_reply(msg, info); | |
8644 | } | |
8645 | ||
8646 | return 0; | |
026331c4 JM |
8647 | |
8648 | nla_put_failure: | |
8649 | err = -ENOBUFS; | |
8650 | free_msg: | |
8651 | nlmsg_free(msg); | |
026331c4 JM |
8652 | return err; |
8653 | } | |
8654 | ||
f7ca38df JB |
8655 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
8656 | { | |
8657 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
71bbc994 | 8658 | struct wireless_dev *wdev = info->user_ptr[1]; |
f7ca38df JB |
8659 | u64 cookie; |
8660 | ||
8661 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
8662 | return -EINVAL; | |
8663 | ||
8664 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
8665 | return -EOPNOTSUPP; | |
8666 | ||
71bbc994 JB |
8667 | switch (wdev->iftype) { |
8668 | case NL80211_IFTYPE_STATION: | |
8669 | case NL80211_IFTYPE_ADHOC: | |
8670 | case NL80211_IFTYPE_P2P_CLIENT: | |
8671 | case NL80211_IFTYPE_AP: | |
8672 | case NL80211_IFTYPE_AP_VLAN: | |
8673 | case NL80211_IFTYPE_P2P_GO: | |
98104fde | 8674 | case NL80211_IFTYPE_P2P_DEVICE: |
71bbc994 JB |
8675 | break; |
8676 | default: | |
f7ca38df | 8677 | return -EOPNOTSUPP; |
71bbc994 | 8678 | } |
f7ca38df JB |
8679 | |
8680 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
8681 | ||
e35e4d28 | 8682 | return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie); |
f7ca38df JB |
8683 | } |
8684 | ||
ffb9eb3d KV |
8685 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
8686 | { | |
4c476991 | 8687 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 8688 | struct wireless_dev *wdev; |
4c476991 | 8689 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
8690 | u8 ps_state; |
8691 | bool state; | |
8692 | int err; | |
8693 | ||
4c476991 JB |
8694 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
8695 | return -EINVAL; | |
ffb9eb3d KV |
8696 | |
8697 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
8698 | ||
4c476991 JB |
8699 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
8700 | return -EINVAL; | |
ffb9eb3d KV |
8701 | |
8702 | wdev = dev->ieee80211_ptr; | |
8703 | ||
4c476991 JB |
8704 | if (!rdev->ops->set_power_mgmt) |
8705 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
8706 | |
8707 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
8708 | ||
8709 | if (state == wdev->ps) | |
4c476991 | 8710 | return 0; |
ffb9eb3d | 8711 | |
e35e4d28 | 8712 | err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout); |
4c476991 JB |
8713 | if (!err) |
8714 | wdev->ps = state; | |
ffb9eb3d KV |
8715 | return err; |
8716 | } | |
8717 | ||
8718 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
8719 | { | |
4c476991 | 8720 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
8721 | enum nl80211_ps_state ps_state; |
8722 | struct wireless_dev *wdev; | |
4c476991 | 8723 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
8724 | struct sk_buff *msg; |
8725 | void *hdr; | |
8726 | int err; | |
8727 | ||
ffb9eb3d KV |
8728 | wdev = dev->ieee80211_ptr; |
8729 | ||
4c476991 JB |
8730 | if (!rdev->ops->set_power_mgmt) |
8731 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
8732 | |
8733 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
8734 | if (!msg) |
8735 | return -ENOMEM; | |
ffb9eb3d | 8736 | |
15e47304 | 8737 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ffb9eb3d KV |
8738 | NL80211_CMD_GET_POWER_SAVE); |
8739 | if (!hdr) { | |
4c476991 | 8740 | err = -ENOBUFS; |
ffb9eb3d KV |
8741 | goto free_msg; |
8742 | } | |
8743 | ||
8744 | if (wdev->ps) | |
8745 | ps_state = NL80211_PS_ENABLED; | |
8746 | else | |
8747 | ps_state = NL80211_PS_DISABLED; | |
8748 | ||
9360ffd1 DM |
8749 | if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state)) |
8750 | goto nla_put_failure; | |
ffb9eb3d KV |
8751 | |
8752 | genlmsg_end(msg, hdr); | |
4c476991 | 8753 | return genlmsg_reply(msg, info); |
ffb9eb3d | 8754 | |
4c476991 | 8755 | nla_put_failure: |
ffb9eb3d | 8756 | err = -ENOBUFS; |
4c476991 | 8757 | free_msg: |
ffb9eb3d | 8758 | nlmsg_free(msg); |
ffb9eb3d KV |
8759 | return err; |
8760 | } | |
8761 | ||
94e860f1 JB |
8762 | static const struct nla_policy |
8763 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { | |
d6dc1a38 JO |
8764 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, |
8765 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
8766 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
84f10708 TP |
8767 | [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 }, |
8768 | [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 }, | |
8769 | [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 }, | |
d6dc1a38 JO |
8770 | }; |
8771 | ||
84f10708 | 8772 | static int nl80211_set_cqm_txe(struct genl_info *info, |
d9d8b019 | 8773 | u32 rate, u32 pkts, u32 intvl) |
84f10708 TP |
8774 | { |
8775 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
84f10708 | 8776 | struct net_device *dev = info->user_ptr[1]; |
1da5fcc8 | 8777 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
84f10708 | 8778 | |
d9d8b019 | 8779 | if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL) |
84f10708 TP |
8780 | return -EINVAL; |
8781 | ||
84f10708 TP |
8782 | if (!rdev->ops->set_cqm_txe_config) |
8783 | return -EOPNOTSUPP; | |
8784 | ||
8785 | if (wdev->iftype != NL80211_IFTYPE_STATION && | |
8786 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) | |
8787 | return -EOPNOTSUPP; | |
8788 | ||
e35e4d28 | 8789 | return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl); |
84f10708 TP |
8790 | } |
8791 | ||
d6dc1a38 JO |
8792 | static int nl80211_set_cqm_rssi(struct genl_info *info, |
8793 | s32 threshold, u32 hysteresis) | |
8794 | { | |
4c476991 | 8795 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 8796 | struct net_device *dev = info->user_ptr[1]; |
1da5fcc8 | 8797 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
d6dc1a38 JO |
8798 | |
8799 | if (threshold > 0) | |
8800 | return -EINVAL; | |
8801 | ||
1da5fcc8 JB |
8802 | /* disabling - hysteresis should also be zero then */ |
8803 | if (threshold == 0) | |
8804 | hysteresis = 0; | |
d6dc1a38 | 8805 | |
4c476991 JB |
8806 | if (!rdev->ops->set_cqm_rssi_config) |
8807 | return -EOPNOTSUPP; | |
d6dc1a38 | 8808 | |
074ac8df | 8809 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
8810 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
8811 | return -EOPNOTSUPP; | |
d6dc1a38 | 8812 | |
e35e4d28 | 8813 | return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis); |
d6dc1a38 JO |
8814 | } |
8815 | ||
8816 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
8817 | { | |
8818 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
8819 | struct nlattr *cqm; | |
8820 | int err; | |
8821 | ||
8822 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
1da5fcc8 JB |
8823 | if (!cqm) |
8824 | return -EINVAL; | |
d6dc1a38 JO |
8825 | |
8826 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
8827 | nl80211_attr_cqm_policy); | |
8828 | if (err) | |
1da5fcc8 | 8829 | return err; |
d6dc1a38 JO |
8830 | |
8831 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
8832 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
1da5fcc8 JB |
8833 | s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); |
8834 | u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
d6dc1a38 | 8835 | |
1da5fcc8 JB |
8836 | return nl80211_set_cqm_rssi(info, threshold, hysteresis); |
8837 | } | |
8838 | ||
8839 | if (attrs[NL80211_ATTR_CQM_TXE_RATE] && | |
8840 | attrs[NL80211_ATTR_CQM_TXE_PKTS] && | |
8841 | attrs[NL80211_ATTR_CQM_TXE_INTVL]) { | |
8842 | u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]); | |
8843 | u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]); | |
8844 | u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]); | |
8845 | ||
8846 | return nl80211_set_cqm_txe(info, rate, pkts, intvl); | |
8847 | } | |
8848 | ||
8849 | return -EINVAL; | |
d6dc1a38 JO |
8850 | } |
8851 | ||
6e0bd6c3 RL |
8852 | static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info) |
8853 | { | |
8854 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8855 | struct net_device *dev = info->user_ptr[1]; | |
8856 | struct ocb_setup setup = {}; | |
8857 | int err; | |
8858 | ||
8859 | err = nl80211_parse_chandef(rdev, info, &setup.chandef); | |
8860 | if (err) | |
8861 | return err; | |
8862 | ||
8863 | return cfg80211_join_ocb(rdev, dev, &setup); | |
8864 | } | |
8865 | ||
8866 | static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info) | |
8867 | { | |
8868 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8869 | struct net_device *dev = info->user_ptr[1]; | |
8870 | ||
8871 | return cfg80211_leave_ocb(rdev, dev); | |
8872 | } | |
8873 | ||
29cbe68c JB |
8874 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
8875 | { | |
8876 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8877 | struct net_device *dev = info->user_ptr[1]; | |
8878 | struct mesh_config cfg; | |
c80d545d | 8879 | struct mesh_setup setup; |
29cbe68c JB |
8880 | int err; |
8881 | ||
8882 | /* start with default */ | |
8883 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
c80d545d | 8884 | memcpy(&setup, &default_mesh_setup, sizeof(setup)); |
29cbe68c | 8885 | |
24bdd9f4 | 8886 | if (info->attrs[NL80211_ATTR_MESH_CONFIG]) { |
29cbe68c | 8887 | /* and parse parameters if given */ |
24bdd9f4 | 8888 | err = nl80211_parse_mesh_config(info, &cfg, NULL); |
29cbe68c JB |
8889 | if (err) |
8890 | return err; | |
8891 | } | |
8892 | ||
8893 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
8894 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
8895 | return -EINVAL; | |
8896 | ||
c80d545d JC |
8897 | setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
8898 | setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
8899 | ||
4bb62344 CYY |
8900 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && |
8901 | !nl80211_parse_mcast_rate(rdev, setup.mcast_rate, | |
8902 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
8903 | return -EINVAL; | |
8904 | ||
9bdbf04d MP |
8905 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { |
8906 | setup.beacon_interval = | |
8907 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
8908 | if (setup.beacon_interval < 10 || | |
8909 | setup.beacon_interval > 10000) | |
8910 | return -EINVAL; | |
8911 | } | |
8912 | ||
8913 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
8914 | setup.dtim_period = | |
8915 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
8916 | if (setup.dtim_period < 1 || setup.dtim_period > 100) | |
8917 | return -EINVAL; | |
8918 | } | |
8919 | ||
c80d545d JC |
8920 | if (info->attrs[NL80211_ATTR_MESH_SETUP]) { |
8921 | /* parse additional setup parameters if given */ | |
8922 | err = nl80211_parse_mesh_setup(info, &setup); | |
8923 | if (err) | |
8924 | return err; | |
8925 | } | |
8926 | ||
d37bb18a TP |
8927 | if (setup.user_mpm) |
8928 | cfg.auto_open_plinks = false; | |
8929 | ||
cc1d2806 | 8930 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
683b6d3b JB |
8931 | err = nl80211_parse_chandef(rdev, info, &setup.chandef); |
8932 | if (err) | |
8933 | return err; | |
cc1d2806 JB |
8934 | } else { |
8935 | /* cfg80211_join_mesh() will sort it out */ | |
683b6d3b | 8936 | setup.chandef.chan = NULL; |
cc1d2806 JB |
8937 | } |
8938 | ||
ffb3cf30 AN |
8939 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
8940 | u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
8941 | int n_rates = | |
8942 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
8943 | struct ieee80211_supported_band *sband; | |
8944 | ||
8945 | if (!setup.chandef.chan) | |
8946 | return -EINVAL; | |
8947 | ||
8948 | sband = rdev->wiphy.bands[setup.chandef.chan->band]; | |
8949 | ||
8950 | err = ieee80211_get_ratemask(sband, rates, n_rates, | |
8951 | &setup.basic_rates); | |
8952 | if (err) | |
8953 | return err; | |
8954 | } | |
8955 | ||
c80d545d | 8956 | return cfg80211_join_mesh(rdev, dev, &setup, &cfg); |
29cbe68c JB |
8957 | } |
8958 | ||
8959 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
8960 | { | |
8961 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
8962 | struct net_device *dev = info->user_ptr[1]; | |
8963 | ||
8964 | return cfg80211_leave_mesh(rdev, dev); | |
8965 | } | |
8966 | ||
dfb89c56 | 8967 | #ifdef CONFIG_PM |
bb92d199 AK |
8968 | static int nl80211_send_wowlan_patterns(struct sk_buff *msg, |
8969 | struct cfg80211_registered_device *rdev) | |
8970 | { | |
6abb9cb9 | 8971 | struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config; |
bb92d199 AK |
8972 | struct nlattr *nl_pats, *nl_pat; |
8973 | int i, pat_len; | |
8974 | ||
6abb9cb9 | 8975 | if (!wowlan->n_patterns) |
bb92d199 AK |
8976 | return 0; |
8977 | ||
8978 | nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN); | |
8979 | if (!nl_pats) | |
8980 | return -ENOBUFS; | |
8981 | ||
6abb9cb9 | 8982 | for (i = 0; i < wowlan->n_patterns; i++) { |
bb92d199 AK |
8983 | nl_pat = nla_nest_start(msg, i + 1); |
8984 | if (!nl_pat) | |
8985 | return -ENOBUFS; | |
6abb9cb9 | 8986 | pat_len = wowlan->patterns[i].pattern_len; |
50ac6607 | 8987 | if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8), |
6abb9cb9 | 8988 | wowlan->patterns[i].mask) || |
50ac6607 AK |
8989 | nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, |
8990 | wowlan->patterns[i].pattern) || | |
8991 | nla_put_u32(msg, NL80211_PKTPAT_OFFSET, | |
6abb9cb9 | 8992 | wowlan->patterns[i].pkt_offset)) |
bb92d199 AK |
8993 | return -ENOBUFS; |
8994 | nla_nest_end(msg, nl_pat); | |
8995 | } | |
8996 | nla_nest_end(msg, nl_pats); | |
8997 | ||
8998 | return 0; | |
8999 | } | |
9000 | ||
2a0e047e JB |
9001 | static int nl80211_send_wowlan_tcp(struct sk_buff *msg, |
9002 | struct cfg80211_wowlan_tcp *tcp) | |
9003 | { | |
9004 | struct nlattr *nl_tcp; | |
9005 | ||
9006 | if (!tcp) | |
9007 | return 0; | |
9008 | ||
9009 | nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); | |
9010 | if (!nl_tcp) | |
9011 | return -ENOBUFS; | |
9012 | ||
930345ea JB |
9013 | if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) || |
9014 | nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) || | |
2a0e047e JB |
9015 | nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) || |
9016 | nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) || | |
9017 | nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) || | |
9018 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, | |
9019 | tcp->payload_len, tcp->payload) || | |
9020 | nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, | |
9021 | tcp->data_interval) || | |
9022 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, | |
9023 | tcp->wake_len, tcp->wake_data) || | |
9024 | nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK, | |
9025 | DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask)) | |
9026 | return -ENOBUFS; | |
9027 | ||
9028 | if (tcp->payload_seq.len && | |
9029 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ, | |
9030 | sizeof(tcp->payload_seq), &tcp->payload_seq)) | |
9031 | return -ENOBUFS; | |
9032 | ||
9033 | if (tcp->payload_tok.len && | |
9034 | nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, | |
9035 | sizeof(tcp->payload_tok) + tcp->tokens_size, | |
9036 | &tcp->payload_tok)) | |
9037 | return -ENOBUFS; | |
9038 | ||
e248ad30 JB |
9039 | nla_nest_end(msg, nl_tcp); |
9040 | ||
2a0e047e JB |
9041 | return 0; |
9042 | } | |
9043 | ||
75453ccb LC |
9044 | static int nl80211_send_wowlan_nd(struct sk_buff *msg, |
9045 | struct cfg80211_sched_scan_request *req) | |
9046 | { | |
3b06d277 | 9047 | struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan; |
75453ccb LC |
9048 | int i; |
9049 | ||
9050 | if (!req) | |
9051 | return 0; | |
9052 | ||
9053 | nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT); | |
9054 | if (!nd) | |
9055 | return -ENOBUFS; | |
9056 | ||
3b06d277 AS |
9057 | if (req->n_scan_plans == 1 && |
9058 | nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, | |
9059 | req->scan_plans[0].interval * 1000)) | |
75453ccb LC |
9060 | return -ENOBUFS; |
9061 | ||
21fea567 LC |
9062 | if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay)) |
9063 | return -ENOBUFS; | |
9064 | ||
75453ccb LC |
9065 | freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); |
9066 | if (!freqs) | |
9067 | return -ENOBUFS; | |
9068 | ||
9069 | for (i = 0; i < req->n_channels; i++) | |
9070 | nla_put_u32(msg, i, req->channels[i]->center_freq); | |
9071 | ||
9072 | nla_nest_end(msg, freqs); | |
9073 | ||
9074 | if (req->n_match_sets) { | |
9075 | matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH); | |
9076 | for (i = 0; i < req->n_match_sets; i++) { | |
9077 | match = nla_nest_start(msg, i); | |
9078 | nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID, | |
9079 | req->match_sets[i].ssid.ssid_len, | |
9080 | req->match_sets[i].ssid.ssid); | |
9081 | nla_nest_end(msg, match); | |
9082 | } | |
9083 | nla_nest_end(msg, matches); | |
9084 | } | |
9085 | ||
3b06d277 AS |
9086 | scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS); |
9087 | if (!scan_plans) | |
9088 | return -ENOBUFS; | |
9089 | ||
9090 | for (i = 0; i < req->n_scan_plans; i++) { | |
9091 | scan_plan = nla_nest_start(msg, i + 1); | |
9092 | if (!scan_plan || | |
9093 | nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL, | |
9094 | req->scan_plans[i].interval) || | |
9095 | (req->scan_plans[i].iterations && | |
9096 | nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS, | |
9097 | req->scan_plans[i].iterations))) | |
9098 | return -ENOBUFS; | |
9099 | nla_nest_end(msg, scan_plan); | |
9100 | } | |
9101 | nla_nest_end(msg, scan_plans); | |
9102 | ||
75453ccb LC |
9103 | nla_nest_end(msg, nd); |
9104 | ||
9105 | return 0; | |
9106 | } | |
9107 | ||
ff1b6e69 JB |
9108 | static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) |
9109 | { | |
9110 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9111 | struct sk_buff *msg; | |
9112 | void *hdr; | |
2a0e047e | 9113 | u32 size = NLMSG_DEFAULT_SIZE; |
ff1b6e69 | 9114 | |
964dc9e2 | 9115 | if (!rdev->wiphy.wowlan) |
ff1b6e69 JB |
9116 | return -EOPNOTSUPP; |
9117 | ||
6abb9cb9 | 9118 | if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) { |
2a0e047e | 9119 | /* adjust size to have room for all the data */ |
6abb9cb9 JB |
9120 | size += rdev->wiphy.wowlan_config->tcp->tokens_size + |
9121 | rdev->wiphy.wowlan_config->tcp->payload_len + | |
9122 | rdev->wiphy.wowlan_config->tcp->wake_len + | |
9123 | rdev->wiphy.wowlan_config->tcp->wake_len / 8; | |
2a0e047e JB |
9124 | } |
9125 | ||
9126 | msg = nlmsg_new(size, GFP_KERNEL); | |
ff1b6e69 JB |
9127 | if (!msg) |
9128 | return -ENOMEM; | |
9129 | ||
15e47304 | 9130 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
ff1b6e69 JB |
9131 | NL80211_CMD_GET_WOWLAN); |
9132 | if (!hdr) | |
9133 | goto nla_put_failure; | |
9134 | ||
6abb9cb9 | 9135 | if (rdev->wiphy.wowlan_config) { |
ff1b6e69 JB |
9136 | struct nlattr *nl_wowlan; |
9137 | ||
9138 | nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
9139 | if (!nl_wowlan) | |
9140 | goto nla_put_failure; | |
9141 | ||
6abb9cb9 | 9142 | if ((rdev->wiphy.wowlan_config->any && |
9360ffd1 | 9143 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || |
6abb9cb9 | 9144 | (rdev->wiphy.wowlan_config->disconnect && |
9360ffd1 | 9145 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || |
6abb9cb9 | 9146 | (rdev->wiphy.wowlan_config->magic_pkt && |
9360ffd1 | 9147 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || |
6abb9cb9 | 9148 | (rdev->wiphy.wowlan_config->gtk_rekey_failure && |
9360ffd1 | 9149 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || |
6abb9cb9 | 9150 | (rdev->wiphy.wowlan_config->eap_identity_req && |
9360ffd1 | 9151 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || |
6abb9cb9 | 9152 | (rdev->wiphy.wowlan_config->four_way_handshake && |
9360ffd1 | 9153 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || |
6abb9cb9 | 9154 | (rdev->wiphy.wowlan_config->rfkill_release && |
9360ffd1 DM |
9155 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) |
9156 | goto nla_put_failure; | |
2a0e047e | 9157 | |
bb92d199 AK |
9158 | if (nl80211_send_wowlan_patterns(msg, rdev)) |
9159 | goto nla_put_failure; | |
2a0e047e | 9160 | |
6abb9cb9 JB |
9161 | if (nl80211_send_wowlan_tcp(msg, |
9162 | rdev->wiphy.wowlan_config->tcp)) | |
2a0e047e | 9163 | goto nla_put_failure; |
75453ccb LC |
9164 | |
9165 | if (nl80211_send_wowlan_nd( | |
9166 | msg, | |
9167 | rdev->wiphy.wowlan_config->nd_config)) | |
9168 | goto nla_put_failure; | |
2a0e047e | 9169 | |
ff1b6e69 JB |
9170 | nla_nest_end(msg, nl_wowlan); |
9171 | } | |
9172 | ||
9173 | genlmsg_end(msg, hdr); | |
9174 | return genlmsg_reply(msg, info); | |
9175 | ||
9176 | nla_put_failure: | |
9177 | nlmsg_free(msg); | |
9178 | return -ENOBUFS; | |
9179 | } | |
9180 | ||
2a0e047e JB |
9181 | static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, |
9182 | struct nlattr *attr, | |
9183 | struct cfg80211_wowlan *trig) | |
9184 | { | |
9185 | struct nlattr *tb[NUM_NL80211_WOWLAN_TCP]; | |
9186 | struct cfg80211_wowlan_tcp *cfg; | |
9187 | struct nl80211_wowlan_tcp_data_token *tok = NULL; | |
9188 | struct nl80211_wowlan_tcp_data_seq *seq = NULL; | |
9189 | u32 size; | |
9190 | u32 data_size, wake_size, tokens_size = 0, wake_mask_size; | |
9191 | int err, port; | |
9192 | ||
964dc9e2 | 9193 | if (!rdev->wiphy.wowlan->tcp) |
2a0e047e JB |
9194 | return -EINVAL; |
9195 | ||
9196 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP, | |
9197 | nla_data(attr), nla_len(attr), | |
9198 | nl80211_wowlan_tcp_policy); | |
9199 | if (err) | |
9200 | return err; | |
9201 | ||
9202 | if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] || | |
9203 | !tb[NL80211_WOWLAN_TCP_DST_IPV4] || | |
9204 | !tb[NL80211_WOWLAN_TCP_DST_MAC] || | |
9205 | !tb[NL80211_WOWLAN_TCP_DST_PORT] || | |
9206 | !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] || | |
9207 | !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] || | |
9208 | !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] || | |
9209 | !tb[NL80211_WOWLAN_TCP_WAKE_MASK]) | |
9210 | return -EINVAL; | |
9211 | ||
9212 | data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]); | |
964dc9e2 | 9213 | if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max) |
2a0e047e JB |
9214 | return -EINVAL; |
9215 | ||
9216 | if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) > | |
964dc9e2 | 9217 | rdev->wiphy.wowlan->tcp->data_interval_max || |
723d568a | 9218 | nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0) |
2a0e047e JB |
9219 | return -EINVAL; |
9220 | ||
9221 | wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]); | |
964dc9e2 | 9222 | if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max) |
2a0e047e JB |
9223 | return -EINVAL; |
9224 | ||
9225 | wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]); | |
9226 | if (wake_mask_size != DIV_ROUND_UP(wake_size, 8)) | |
9227 | return -EINVAL; | |
9228 | ||
9229 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) { | |
9230 | u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); | |
9231 | ||
9232 | tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]); | |
9233 | tokens_size = tokln - sizeof(*tok); | |
9234 | ||
9235 | if (!tok->len || tokens_size % tok->len) | |
9236 | return -EINVAL; | |
964dc9e2 | 9237 | if (!rdev->wiphy.wowlan->tcp->tok) |
2a0e047e | 9238 | return -EINVAL; |
964dc9e2 | 9239 | if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len) |
2a0e047e | 9240 | return -EINVAL; |
964dc9e2 | 9241 | if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len) |
2a0e047e | 9242 | return -EINVAL; |
964dc9e2 | 9243 | if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize) |
2a0e047e JB |
9244 | return -EINVAL; |
9245 | if (tok->offset + tok->len > data_size) | |
9246 | return -EINVAL; | |
9247 | } | |
9248 | ||
9249 | if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) { | |
9250 | seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]); | |
964dc9e2 | 9251 | if (!rdev->wiphy.wowlan->tcp->seq) |
2a0e047e JB |
9252 | return -EINVAL; |
9253 | if (seq->len == 0 || seq->len > 4) | |
9254 | return -EINVAL; | |
9255 | if (seq->len + seq->offset > data_size) | |
9256 | return -EINVAL; | |
9257 | } | |
9258 | ||
9259 | size = sizeof(*cfg); | |
9260 | size += data_size; | |
9261 | size += wake_size + wake_mask_size; | |
9262 | size += tokens_size; | |
9263 | ||
9264 | cfg = kzalloc(size, GFP_KERNEL); | |
9265 | if (!cfg) | |
9266 | return -ENOMEM; | |
67b61f6c JB |
9267 | cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]); |
9268 | cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]); | |
2a0e047e JB |
9269 | memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]), |
9270 | ETH_ALEN); | |
9271 | if (tb[NL80211_WOWLAN_TCP_SRC_PORT]) | |
9272 | port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]); | |
9273 | else | |
9274 | port = 0; | |
9275 | #ifdef CONFIG_INET | |
9276 | /* allocate a socket and port for it and use it */ | |
9277 | err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM, | |
9278 | IPPROTO_TCP, &cfg->sock, 1); | |
9279 | if (err) { | |
9280 | kfree(cfg); | |
9281 | return err; | |
9282 | } | |
9283 | if (inet_csk_get_port(cfg->sock->sk, port)) { | |
9284 | sock_release(cfg->sock); | |
9285 | kfree(cfg); | |
9286 | return -EADDRINUSE; | |
9287 | } | |
9288 | cfg->src_port = inet_sk(cfg->sock->sk)->inet_num; | |
9289 | #else | |
9290 | if (!port) { | |
9291 | kfree(cfg); | |
9292 | return -EINVAL; | |
9293 | } | |
9294 | cfg->src_port = port; | |
9295 | #endif | |
9296 | ||
9297 | cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]); | |
9298 | cfg->payload_len = data_size; | |
9299 | cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size; | |
9300 | memcpy((void *)cfg->payload, | |
9301 | nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]), | |
9302 | data_size); | |
9303 | if (seq) | |
9304 | cfg->payload_seq = *seq; | |
9305 | cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]); | |
9306 | cfg->wake_len = wake_size; | |
9307 | cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size; | |
9308 | memcpy((void *)cfg->wake_data, | |
9309 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]), | |
9310 | wake_size); | |
9311 | cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size + | |
9312 | data_size + wake_size; | |
9313 | memcpy((void *)cfg->wake_mask, | |
9314 | nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]), | |
9315 | wake_mask_size); | |
9316 | if (tok) { | |
9317 | cfg->tokens_size = tokens_size; | |
9318 | memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size); | |
9319 | } | |
9320 | ||
9321 | trig->tcp = cfg; | |
9322 | ||
9323 | return 0; | |
9324 | } | |
9325 | ||
8cd4d456 LC |
9326 | static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev, |
9327 | const struct wiphy_wowlan_support *wowlan, | |
9328 | struct nlattr *attr, | |
9329 | struct cfg80211_wowlan *trig) | |
9330 | { | |
9331 | struct nlattr **tb; | |
9332 | int err; | |
9333 | ||
9334 | tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL); | |
9335 | if (!tb) | |
9336 | return -ENOMEM; | |
9337 | ||
9338 | if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) { | |
9339 | err = -EOPNOTSUPP; | |
9340 | goto out; | |
9341 | } | |
9342 | ||
9343 | err = nla_parse(tb, NL80211_ATTR_MAX, | |
9344 | nla_data(attr), nla_len(attr), | |
9345 | nl80211_policy); | |
9346 | if (err) | |
9347 | goto out; | |
9348 | ||
ad2b26ab | 9349 | trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb); |
8cd4d456 LC |
9350 | err = PTR_ERR_OR_ZERO(trig->nd_config); |
9351 | if (err) | |
9352 | trig->nd_config = NULL; | |
9353 | ||
9354 | out: | |
9355 | kfree(tb); | |
9356 | return err; | |
9357 | } | |
9358 | ||
ff1b6e69 JB |
9359 | static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) |
9360 | { | |
9361 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9362 | struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG]; | |
ff1b6e69 | 9363 | struct cfg80211_wowlan new_triggers = {}; |
ae33bd81 | 9364 | struct cfg80211_wowlan *ntrig; |
964dc9e2 | 9365 | const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan; |
ff1b6e69 | 9366 | int err, i; |
6abb9cb9 | 9367 | bool prev_enabled = rdev->wiphy.wowlan_config; |
98fc4386 | 9368 | bool regular = false; |
ff1b6e69 | 9369 | |
964dc9e2 | 9370 | if (!wowlan) |
ff1b6e69 JB |
9371 | return -EOPNOTSUPP; |
9372 | ||
ae33bd81 JB |
9373 | if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { |
9374 | cfg80211_rdev_free_wowlan(rdev); | |
6abb9cb9 | 9375 | rdev->wiphy.wowlan_config = NULL; |
ae33bd81 JB |
9376 | goto set_wakeup; |
9377 | } | |
ff1b6e69 JB |
9378 | |
9379 | err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG, | |
9380 | nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
9381 | nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]), | |
9382 | nl80211_wowlan_policy); | |
9383 | if (err) | |
9384 | return err; | |
9385 | ||
9386 | if (tb[NL80211_WOWLAN_TRIG_ANY]) { | |
9387 | if (!(wowlan->flags & WIPHY_WOWLAN_ANY)) | |
9388 | return -EINVAL; | |
9389 | new_triggers.any = true; | |
9390 | } | |
9391 | ||
9392 | if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) { | |
9393 | if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT)) | |
9394 | return -EINVAL; | |
9395 | new_triggers.disconnect = true; | |
98fc4386 | 9396 | regular = true; |
ff1b6e69 JB |
9397 | } |
9398 | ||
9399 | if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) { | |
9400 | if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT)) | |
9401 | return -EINVAL; | |
9402 | new_triggers.magic_pkt = true; | |
98fc4386 | 9403 | regular = true; |
ff1b6e69 JB |
9404 | } |
9405 | ||
77dbbb13 JB |
9406 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED]) |
9407 | return -EINVAL; | |
9408 | ||
9409 | if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) { | |
9410 | if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)) | |
9411 | return -EINVAL; | |
9412 | new_triggers.gtk_rekey_failure = true; | |
98fc4386 | 9413 | regular = true; |
77dbbb13 JB |
9414 | } |
9415 | ||
9416 | if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) { | |
9417 | if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)) | |
9418 | return -EINVAL; | |
9419 | new_triggers.eap_identity_req = true; | |
98fc4386 | 9420 | regular = true; |
77dbbb13 JB |
9421 | } |
9422 | ||
9423 | if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) { | |
9424 | if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)) | |
9425 | return -EINVAL; | |
9426 | new_triggers.four_way_handshake = true; | |
98fc4386 | 9427 | regular = true; |
77dbbb13 JB |
9428 | } |
9429 | ||
9430 | if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) { | |
9431 | if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE)) | |
9432 | return -EINVAL; | |
9433 | new_triggers.rfkill_release = true; | |
98fc4386 | 9434 | regular = true; |
77dbbb13 JB |
9435 | } |
9436 | ||
ff1b6e69 JB |
9437 | if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) { |
9438 | struct nlattr *pat; | |
9439 | int n_patterns = 0; | |
bb92d199 | 9440 | int rem, pat_len, mask_len, pkt_offset; |
50ac6607 | 9441 | struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; |
ff1b6e69 | 9442 | |
98fc4386 JB |
9443 | regular = true; |
9444 | ||
ff1b6e69 JB |
9445 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], |
9446 | rem) | |
9447 | n_patterns++; | |
9448 | if (n_patterns > wowlan->n_patterns) | |
9449 | return -EINVAL; | |
9450 | ||
9451 | new_triggers.patterns = kcalloc(n_patterns, | |
9452 | sizeof(new_triggers.patterns[0]), | |
9453 | GFP_KERNEL); | |
9454 | if (!new_triggers.patterns) | |
9455 | return -ENOMEM; | |
9456 | ||
9457 | new_triggers.n_patterns = n_patterns; | |
9458 | i = 0; | |
9459 | ||
9460 | nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], | |
9461 | rem) { | |
922bd80f JB |
9462 | u8 *mask_pat; |
9463 | ||
50ac6607 AK |
9464 | nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), |
9465 | nla_len(pat), NULL); | |
ff1b6e69 | 9466 | err = -EINVAL; |
50ac6607 AK |
9467 | if (!pat_tb[NL80211_PKTPAT_MASK] || |
9468 | !pat_tb[NL80211_PKTPAT_PATTERN]) | |
ff1b6e69 | 9469 | goto error; |
50ac6607 | 9470 | pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); |
ff1b6e69 | 9471 | mask_len = DIV_ROUND_UP(pat_len, 8); |
50ac6607 | 9472 | if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) |
ff1b6e69 JB |
9473 | goto error; |
9474 | if (pat_len > wowlan->pattern_max_len || | |
9475 | pat_len < wowlan->pattern_min_len) | |
9476 | goto error; | |
9477 | ||
50ac6607 | 9478 | if (!pat_tb[NL80211_PKTPAT_OFFSET]) |
bb92d199 AK |
9479 | pkt_offset = 0; |
9480 | else | |
9481 | pkt_offset = nla_get_u32( | |
50ac6607 | 9482 | pat_tb[NL80211_PKTPAT_OFFSET]); |
bb92d199 AK |
9483 | if (pkt_offset > wowlan->max_pkt_offset) |
9484 | goto error; | |
9485 | new_triggers.patterns[i].pkt_offset = pkt_offset; | |
9486 | ||
922bd80f JB |
9487 | mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL); |
9488 | if (!mask_pat) { | |
ff1b6e69 JB |
9489 | err = -ENOMEM; |
9490 | goto error; | |
9491 | } | |
922bd80f JB |
9492 | new_triggers.patterns[i].mask = mask_pat; |
9493 | memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]), | |
ff1b6e69 | 9494 | mask_len); |
922bd80f JB |
9495 | mask_pat += mask_len; |
9496 | new_triggers.patterns[i].pattern = mask_pat; | |
ff1b6e69 | 9497 | new_triggers.patterns[i].pattern_len = pat_len; |
922bd80f | 9498 | memcpy(mask_pat, |
50ac6607 | 9499 | nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), |
ff1b6e69 JB |
9500 | pat_len); |
9501 | i++; | |
9502 | } | |
9503 | } | |
9504 | ||
2a0e047e | 9505 | if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) { |
98fc4386 | 9506 | regular = true; |
2a0e047e JB |
9507 | err = nl80211_parse_wowlan_tcp( |
9508 | rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION], | |
9509 | &new_triggers); | |
9510 | if (err) | |
9511 | goto error; | |
9512 | } | |
9513 | ||
8cd4d456 | 9514 | if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) { |
98fc4386 | 9515 | regular = true; |
8cd4d456 LC |
9516 | err = nl80211_parse_wowlan_nd( |
9517 | rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT], | |
9518 | &new_triggers); | |
9519 | if (err) | |
9520 | goto error; | |
9521 | } | |
9522 | ||
98fc4386 JB |
9523 | /* The 'any' trigger means the device continues operating more or less |
9524 | * as in its normal operation mode and wakes up the host on most of the | |
9525 | * normal interrupts (like packet RX, ...) | |
9526 | * It therefore makes little sense to combine with the more constrained | |
9527 | * wakeup trigger modes. | |
9528 | */ | |
9529 | if (new_triggers.any && regular) { | |
9530 | err = -EINVAL; | |
9531 | goto error; | |
9532 | } | |
9533 | ||
ae33bd81 JB |
9534 | ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); |
9535 | if (!ntrig) { | |
9536 | err = -ENOMEM; | |
9537 | goto error; | |
ff1b6e69 | 9538 | } |
ae33bd81 | 9539 | cfg80211_rdev_free_wowlan(rdev); |
6abb9cb9 | 9540 | rdev->wiphy.wowlan_config = ntrig; |
ff1b6e69 | 9541 | |
ae33bd81 | 9542 | set_wakeup: |
6abb9cb9 JB |
9543 | if (rdev->ops->set_wakeup && |
9544 | prev_enabled != !!rdev->wiphy.wowlan_config) | |
9545 | rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config); | |
6d52563f | 9546 | |
ff1b6e69 JB |
9547 | return 0; |
9548 | error: | |
9549 | for (i = 0; i < new_triggers.n_patterns; i++) | |
9550 | kfree(new_triggers.patterns[i].mask); | |
9551 | kfree(new_triggers.patterns); | |
2a0e047e JB |
9552 | if (new_triggers.tcp && new_triggers.tcp->sock) |
9553 | sock_release(new_triggers.tcp->sock); | |
9554 | kfree(new_triggers.tcp); | |
e5dbe070 | 9555 | kfree(new_triggers.nd_config); |
ff1b6e69 JB |
9556 | return err; |
9557 | } | |
dfb89c56 | 9558 | #endif |
ff1b6e69 | 9559 | |
be29b99a AK |
9560 | static int nl80211_send_coalesce_rules(struct sk_buff *msg, |
9561 | struct cfg80211_registered_device *rdev) | |
9562 | { | |
9563 | struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules; | |
9564 | int i, j, pat_len; | |
9565 | struct cfg80211_coalesce_rules *rule; | |
9566 | ||
9567 | if (!rdev->coalesce->n_rules) | |
9568 | return 0; | |
9569 | ||
9570 | nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE); | |
9571 | if (!nl_rules) | |
9572 | return -ENOBUFS; | |
9573 | ||
9574 | for (i = 0; i < rdev->coalesce->n_rules; i++) { | |
9575 | nl_rule = nla_nest_start(msg, i + 1); | |
9576 | if (!nl_rule) | |
9577 | return -ENOBUFS; | |
9578 | ||
9579 | rule = &rdev->coalesce->rules[i]; | |
9580 | if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY, | |
9581 | rule->delay)) | |
9582 | return -ENOBUFS; | |
9583 | ||
9584 | if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION, | |
9585 | rule->condition)) | |
9586 | return -ENOBUFS; | |
9587 | ||
9588 | nl_pats = nla_nest_start(msg, | |
9589 | NL80211_ATTR_COALESCE_RULE_PKT_PATTERN); | |
9590 | if (!nl_pats) | |
9591 | return -ENOBUFS; | |
9592 | ||
9593 | for (j = 0; j < rule->n_patterns; j++) { | |
9594 | nl_pat = nla_nest_start(msg, j + 1); | |
9595 | if (!nl_pat) | |
9596 | return -ENOBUFS; | |
9597 | pat_len = rule->patterns[j].pattern_len; | |
9598 | if (nla_put(msg, NL80211_PKTPAT_MASK, | |
9599 | DIV_ROUND_UP(pat_len, 8), | |
9600 | rule->patterns[j].mask) || | |
9601 | nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len, | |
9602 | rule->patterns[j].pattern) || | |
9603 | nla_put_u32(msg, NL80211_PKTPAT_OFFSET, | |
9604 | rule->patterns[j].pkt_offset)) | |
9605 | return -ENOBUFS; | |
9606 | nla_nest_end(msg, nl_pat); | |
9607 | } | |
9608 | nla_nest_end(msg, nl_pats); | |
9609 | nla_nest_end(msg, nl_rule); | |
9610 | } | |
9611 | nla_nest_end(msg, nl_rules); | |
9612 | ||
9613 | return 0; | |
9614 | } | |
9615 | ||
9616 | static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info) | |
9617 | { | |
9618 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9619 | struct sk_buff *msg; | |
9620 | void *hdr; | |
9621 | ||
9622 | if (!rdev->wiphy.coalesce) | |
9623 | return -EOPNOTSUPP; | |
9624 | ||
9625 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9626 | if (!msg) | |
9627 | return -ENOMEM; | |
9628 | ||
9629 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
9630 | NL80211_CMD_GET_COALESCE); | |
9631 | if (!hdr) | |
9632 | goto nla_put_failure; | |
9633 | ||
9634 | if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev)) | |
9635 | goto nla_put_failure; | |
9636 | ||
9637 | genlmsg_end(msg, hdr); | |
9638 | return genlmsg_reply(msg, info); | |
9639 | ||
9640 | nla_put_failure: | |
9641 | nlmsg_free(msg); | |
9642 | return -ENOBUFS; | |
9643 | } | |
9644 | ||
9645 | void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev) | |
9646 | { | |
9647 | struct cfg80211_coalesce *coalesce = rdev->coalesce; | |
9648 | int i, j; | |
9649 | struct cfg80211_coalesce_rules *rule; | |
9650 | ||
9651 | if (!coalesce) | |
9652 | return; | |
9653 | ||
9654 | for (i = 0; i < coalesce->n_rules; i++) { | |
9655 | rule = &coalesce->rules[i]; | |
9656 | for (j = 0; j < rule->n_patterns; j++) | |
9657 | kfree(rule->patterns[j].mask); | |
9658 | kfree(rule->patterns); | |
9659 | } | |
9660 | kfree(coalesce->rules); | |
9661 | kfree(coalesce); | |
9662 | rdev->coalesce = NULL; | |
9663 | } | |
9664 | ||
9665 | static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, | |
9666 | struct nlattr *rule, | |
9667 | struct cfg80211_coalesce_rules *new_rule) | |
9668 | { | |
9669 | int err, i; | |
9670 | const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; | |
9671 | struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat; | |
9672 | int rem, pat_len, mask_len, pkt_offset, n_patterns = 0; | |
9673 | struct nlattr *pat_tb[NUM_NL80211_PKTPAT]; | |
9674 | ||
9675 | err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule), | |
9676 | nla_len(rule), nl80211_coalesce_policy); | |
9677 | if (err) | |
9678 | return err; | |
9679 | ||
9680 | if (tb[NL80211_ATTR_COALESCE_RULE_DELAY]) | |
9681 | new_rule->delay = | |
9682 | nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]); | |
9683 | if (new_rule->delay > coalesce->max_delay) | |
9684 | return -EINVAL; | |
9685 | ||
9686 | if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION]) | |
9687 | new_rule->condition = | |
9688 | nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]); | |
9689 | if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH && | |
9690 | new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH) | |
9691 | return -EINVAL; | |
9692 | ||
9693 | if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN]) | |
9694 | return -EINVAL; | |
9695 | ||
9696 | nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], | |
9697 | rem) | |
9698 | n_patterns++; | |
9699 | if (n_patterns > coalesce->n_patterns) | |
9700 | return -EINVAL; | |
9701 | ||
9702 | new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]), | |
9703 | GFP_KERNEL); | |
9704 | if (!new_rule->patterns) | |
9705 | return -ENOMEM; | |
9706 | ||
9707 | new_rule->n_patterns = n_patterns; | |
9708 | i = 0; | |
9709 | ||
9710 | nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], | |
9711 | rem) { | |
922bd80f JB |
9712 | u8 *mask_pat; |
9713 | ||
be29b99a AK |
9714 | nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), |
9715 | nla_len(pat), NULL); | |
9716 | if (!pat_tb[NL80211_PKTPAT_MASK] || | |
9717 | !pat_tb[NL80211_PKTPAT_PATTERN]) | |
9718 | return -EINVAL; | |
9719 | pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]); | |
9720 | mask_len = DIV_ROUND_UP(pat_len, 8); | |
9721 | if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len) | |
9722 | return -EINVAL; | |
9723 | if (pat_len > coalesce->pattern_max_len || | |
9724 | pat_len < coalesce->pattern_min_len) | |
9725 | return -EINVAL; | |
9726 | ||
9727 | if (!pat_tb[NL80211_PKTPAT_OFFSET]) | |
9728 | pkt_offset = 0; | |
9729 | else | |
9730 | pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]); | |
9731 | if (pkt_offset > coalesce->max_pkt_offset) | |
9732 | return -EINVAL; | |
9733 | new_rule->patterns[i].pkt_offset = pkt_offset; | |
9734 | ||
922bd80f JB |
9735 | mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL); |
9736 | if (!mask_pat) | |
be29b99a | 9737 | return -ENOMEM; |
922bd80f JB |
9738 | |
9739 | new_rule->patterns[i].mask = mask_pat; | |
9740 | memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]), | |
9741 | mask_len); | |
9742 | ||
9743 | mask_pat += mask_len; | |
9744 | new_rule->patterns[i].pattern = mask_pat; | |
be29b99a | 9745 | new_rule->patterns[i].pattern_len = pat_len; |
922bd80f JB |
9746 | memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), |
9747 | pat_len); | |
be29b99a AK |
9748 | i++; |
9749 | } | |
9750 | ||
9751 | return 0; | |
9752 | } | |
9753 | ||
9754 | static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info) | |
9755 | { | |
9756 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9757 | const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce; | |
9758 | struct cfg80211_coalesce new_coalesce = {}; | |
9759 | struct cfg80211_coalesce *n_coalesce; | |
9760 | int err, rem_rule, n_rules = 0, i, j; | |
9761 | struct nlattr *rule; | |
9762 | struct cfg80211_coalesce_rules *tmp_rule; | |
9763 | ||
9764 | if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce) | |
9765 | return -EOPNOTSUPP; | |
9766 | ||
9767 | if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) { | |
9768 | cfg80211_rdev_free_coalesce(rdev); | |
a1056b1b | 9769 | rdev_set_coalesce(rdev, NULL); |
be29b99a AK |
9770 | return 0; |
9771 | } | |
9772 | ||
9773 | nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], | |
9774 | rem_rule) | |
9775 | n_rules++; | |
9776 | if (n_rules > coalesce->n_rules) | |
9777 | return -EINVAL; | |
9778 | ||
9779 | new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]), | |
9780 | GFP_KERNEL); | |
9781 | if (!new_coalesce.rules) | |
9782 | return -ENOMEM; | |
9783 | ||
9784 | new_coalesce.n_rules = n_rules; | |
9785 | i = 0; | |
9786 | ||
9787 | nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE], | |
9788 | rem_rule) { | |
9789 | err = nl80211_parse_coalesce_rule(rdev, rule, | |
9790 | &new_coalesce.rules[i]); | |
9791 | if (err) | |
9792 | goto error; | |
9793 | ||
9794 | i++; | |
9795 | } | |
9796 | ||
a1056b1b | 9797 | err = rdev_set_coalesce(rdev, &new_coalesce); |
be29b99a AK |
9798 | if (err) |
9799 | goto error; | |
9800 | ||
9801 | n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL); | |
9802 | if (!n_coalesce) { | |
9803 | err = -ENOMEM; | |
9804 | goto error; | |
9805 | } | |
9806 | cfg80211_rdev_free_coalesce(rdev); | |
9807 | rdev->coalesce = n_coalesce; | |
9808 | ||
9809 | return 0; | |
9810 | error: | |
9811 | for (i = 0; i < new_coalesce.n_rules; i++) { | |
9812 | tmp_rule = &new_coalesce.rules[i]; | |
9813 | for (j = 0; j < tmp_rule->n_patterns; j++) | |
9814 | kfree(tmp_rule->patterns[j].mask); | |
9815 | kfree(tmp_rule->patterns); | |
9816 | } | |
9817 | kfree(new_coalesce.rules); | |
9818 | ||
9819 | return err; | |
9820 | } | |
9821 | ||
e5497d76 JB |
9822 | static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info) |
9823 | { | |
9824 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9825 | struct net_device *dev = info->user_ptr[1]; | |
9826 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9827 | struct nlattr *tb[NUM_NL80211_REKEY_DATA]; | |
9828 | struct cfg80211_gtk_rekey_data rekey_data; | |
9829 | int err; | |
9830 | ||
9831 | if (!info->attrs[NL80211_ATTR_REKEY_DATA]) | |
9832 | return -EINVAL; | |
9833 | ||
9834 | err = nla_parse(tb, MAX_NL80211_REKEY_DATA, | |
9835 | nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
9836 | nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]), | |
9837 | nl80211_rekey_policy); | |
9838 | if (err) | |
9839 | return err; | |
9840 | ||
9841 | if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN) | |
9842 | return -ERANGE; | |
9843 | if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN) | |
9844 | return -ERANGE; | |
9845 | if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN) | |
9846 | return -ERANGE; | |
9847 | ||
78f686ca JB |
9848 | rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]); |
9849 | rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]); | |
9850 | rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]); | |
e5497d76 JB |
9851 | |
9852 | wdev_lock(wdev); | |
9853 | if (!wdev->current_bss) { | |
9854 | err = -ENOTCONN; | |
9855 | goto out; | |
9856 | } | |
9857 | ||
9858 | if (!rdev->ops->set_rekey_data) { | |
9859 | err = -EOPNOTSUPP; | |
9860 | goto out; | |
9861 | } | |
9862 | ||
e35e4d28 | 9863 | err = rdev_set_rekey_data(rdev, dev, &rekey_data); |
e5497d76 JB |
9864 | out: |
9865 | wdev_unlock(wdev); | |
9866 | return err; | |
9867 | } | |
9868 | ||
28946da7 JB |
9869 | static int nl80211_register_unexpected_frame(struct sk_buff *skb, |
9870 | struct genl_info *info) | |
9871 | { | |
9872 | struct net_device *dev = info->user_ptr[1]; | |
9873 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9874 | ||
9875 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
9876 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
9877 | return -EINVAL; | |
9878 | ||
15e47304 | 9879 | if (wdev->ap_unexpected_nlportid) |
28946da7 JB |
9880 | return -EBUSY; |
9881 | ||
15e47304 | 9882 | wdev->ap_unexpected_nlportid = info->snd_portid; |
28946da7 JB |
9883 | return 0; |
9884 | } | |
9885 | ||
7f6cf311 JB |
9886 | static int nl80211_probe_client(struct sk_buff *skb, |
9887 | struct genl_info *info) | |
9888 | { | |
9889 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9890 | struct net_device *dev = info->user_ptr[1]; | |
9891 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
9892 | struct sk_buff *msg; | |
9893 | void *hdr; | |
9894 | const u8 *addr; | |
9895 | u64 cookie; | |
9896 | int err; | |
9897 | ||
9898 | if (wdev->iftype != NL80211_IFTYPE_AP && | |
9899 | wdev->iftype != NL80211_IFTYPE_P2P_GO) | |
9900 | return -EOPNOTSUPP; | |
9901 | ||
9902 | if (!info->attrs[NL80211_ATTR_MAC]) | |
9903 | return -EINVAL; | |
9904 | ||
9905 | if (!rdev->ops->probe_client) | |
9906 | return -EOPNOTSUPP; | |
9907 | ||
9908 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
9909 | if (!msg) | |
9910 | return -ENOMEM; | |
9911 | ||
15e47304 | 9912 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, |
7f6cf311 | 9913 | NL80211_CMD_PROBE_CLIENT); |
cb35fba3 DC |
9914 | if (!hdr) { |
9915 | err = -ENOBUFS; | |
7f6cf311 JB |
9916 | goto free_msg; |
9917 | } | |
9918 | ||
9919 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
9920 | ||
e35e4d28 | 9921 | err = rdev_probe_client(rdev, dev, addr, &cookie); |
7f6cf311 JB |
9922 | if (err) |
9923 | goto free_msg; | |
9924 | ||
9360ffd1 DM |
9925 | if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
9926 | goto nla_put_failure; | |
7f6cf311 JB |
9927 | |
9928 | genlmsg_end(msg, hdr); | |
9929 | ||
9930 | return genlmsg_reply(msg, info); | |
9931 | ||
9932 | nla_put_failure: | |
9933 | err = -ENOBUFS; | |
9934 | free_msg: | |
9935 | nlmsg_free(msg); | |
9936 | return err; | |
9937 | } | |
9938 | ||
5e760230 JB |
9939 | static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info) |
9940 | { | |
9941 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
37c73b5f BG |
9942 | struct cfg80211_beacon_registration *reg, *nreg; |
9943 | int rv; | |
5e760230 JB |
9944 | |
9945 | if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS)) | |
9946 | return -EOPNOTSUPP; | |
9947 | ||
37c73b5f BG |
9948 | nreg = kzalloc(sizeof(*nreg), GFP_KERNEL); |
9949 | if (!nreg) | |
9950 | return -ENOMEM; | |
9951 | ||
9952 | /* First, check if already registered. */ | |
9953 | spin_lock_bh(&rdev->beacon_registrations_lock); | |
9954 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { | |
9955 | if (reg->nlportid == info->snd_portid) { | |
9956 | rv = -EALREADY; | |
9957 | goto out_err; | |
9958 | } | |
9959 | } | |
9960 | /* Add it to the list */ | |
9961 | nreg->nlportid = info->snd_portid; | |
9962 | list_add(&nreg->list, &rdev->beacon_registrations); | |
5e760230 | 9963 | |
37c73b5f | 9964 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
5e760230 JB |
9965 | |
9966 | return 0; | |
37c73b5f BG |
9967 | out_err: |
9968 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
9969 | kfree(nreg); | |
9970 | return rv; | |
5e760230 JB |
9971 | } |
9972 | ||
98104fde JB |
9973 | static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) |
9974 | { | |
9975 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
9976 | struct wireless_dev *wdev = info->user_ptr[1]; | |
9977 | int err; | |
9978 | ||
9979 | if (!rdev->ops->start_p2p_device) | |
9980 | return -EOPNOTSUPP; | |
9981 | ||
9982 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
9983 | return -EOPNOTSUPP; | |
9984 | ||
9985 | if (wdev->p2p_started) | |
9986 | return 0; | |
9987 | ||
b6a55015 LC |
9988 | if (rfkill_blocked(rdev->rfkill)) |
9989 | return -ERFKILL; | |
98104fde | 9990 | |
eeb126e9 | 9991 | err = rdev_start_p2p_device(rdev, wdev); |
98104fde JB |
9992 | if (err) |
9993 | return err; | |
9994 | ||
9995 | wdev->p2p_started = true; | |
98104fde | 9996 | rdev->opencount++; |
98104fde JB |
9997 | |
9998 | return 0; | |
9999 | } | |
10000 | ||
10001 | static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info) | |
10002 | { | |
10003 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10004 | struct wireless_dev *wdev = info->user_ptr[1]; | |
10005 | ||
10006 | if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE) | |
10007 | return -EOPNOTSUPP; | |
10008 | ||
10009 | if (!rdev->ops->stop_p2p_device) | |
10010 | return -EOPNOTSUPP; | |
10011 | ||
f9f47529 | 10012 | cfg80211_stop_p2p_device(rdev, wdev); |
98104fde JB |
10013 | |
10014 | return 0; | |
10015 | } | |
10016 | ||
3713b4e3 JB |
10017 | static int nl80211_get_protocol_features(struct sk_buff *skb, |
10018 | struct genl_info *info) | |
10019 | { | |
10020 | void *hdr; | |
10021 | struct sk_buff *msg; | |
10022 | ||
10023 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
10024 | if (!msg) | |
10025 | return -ENOMEM; | |
10026 | ||
10027 | hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0, | |
10028 | NL80211_CMD_GET_PROTOCOL_FEATURES); | |
10029 | if (!hdr) | |
10030 | goto nla_put_failure; | |
10031 | ||
10032 | if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES, | |
10033 | NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)) | |
10034 | goto nla_put_failure; | |
10035 | ||
10036 | genlmsg_end(msg, hdr); | |
10037 | return genlmsg_reply(msg, info); | |
10038 | ||
10039 | nla_put_failure: | |
10040 | kfree_skb(msg); | |
10041 | return -ENOBUFS; | |
10042 | } | |
10043 | ||
355199e0 JM |
10044 | static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info) |
10045 | { | |
10046 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10047 | struct cfg80211_update_ft_ies_params ft_params; | |
10048 | struct net_device *dev = info->user_ptr[1]; | |
10049 | ||
10050 | if (!rdev->ops->update_ft_ies) | |
10051 | return -EOPNOTSUPP; | |
10052 | ||
10053 | if (!info->attrs[NL80211_ATTR_MDID] || | |
10054 | !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
10055 | return -EINVAL; | |
10056 | ||
10057 | memset(&ft_params, 0, sizeof(ft_params)); | |
10058 | ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]); | |
10059 | ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
10060 | ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
10061 | ||
10062 | return rdev_update_ft_ies(rdev, dev, &ft_params); | |
10063 | } | |
10064 | ||
5de17984 AS |
10065 | static int nl80211_crit_protocol_start(struct sk_buff *skb, |
10066 | struct genl_info *info) | |
10067 | { | |
10068 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10069 | struct wireless_dev *wdev = info->user_ptr[1]; | |
10070 | enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC; | |
10071 | u16 duration; | |
10072 | int ret; | |
10073 | ||
10074 | if (!rdev->ops->crit_proto_start) | |
10075 | return -EOPNOTSUPP; | |
10076 | ||
10077 | if (WARN_ON(!rdev->ops->crit_proto_stop)) | |
10078 | return -EINVAL; | |
10079 | ||
10080 | if (rdev->crit_proto_nlportid) | |
10081 | return -EBUSY; | |
10082 | ||
10083 | /* determine protocol if provided */ | |
10084 | if (info->attrs[NL80211_ATTR_CRIT_PROT_ID]) | |
10085 | proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]); | |
10086 | ||
10087 | if (proto >= NUM_NL80211_CRIT_PROTO) | |
10088 | return -EINVAL; | |
10089 | ||
10090 | /* timeout must be provided */ | |
10091 | if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]) | |
10092 | return -EINVAL; | |
10093 | ||
10094 | duration = | |
10095 | nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]); | |
10096 | ||
10097 | if (duration > NL80211_CRIT_PROTO_MAX_DURATION) | |
10098 | return -ERANGE; | |
10099 | ||
10100 | ret = rdev_crit_proto_start(rdev, wdev, proto, duration); | |
10101 | if (!ret) | |
10102 | rdev->crit_proto_nlportid = info->snd_portid; | |
10103 | ||
10104 | return ret; | |
10105 | } | |
10106 | ||
10107 | static int nl80211_crit_protocol_stop(struct sk_buff *skb, | |
10108 | struct genl_info *info) | |
10109 | { | |
10110 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10111 | struct wireless_dev *wdev = info->user_ptr[1]; | |
10112 | ||
10113 | if (!rdev->ops->crit_proto_stop) | |
10114 | return -EOPNOTSUPP; | |
10115 | ||
10116 | if (rdev->crit_proto_nlportid) { | |
10117 | rdev->crit_proto_nlportid = 0; | |
10118 | rdev_crit_proto_stop(rdev, wdev); | |
10119 | } | |
10120 | return 0; | |
10121 | } | |
10122 | ||
ad7e718c JB |
10123 | static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info) |
10124 | { | |
10125 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10126 | struct wireless_dev *wdev = | |
10127 | __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs); | |
10128 | int i, err; | |
10129 | u32 vid, subcmd; | |
10130 | ||
10131 | if (!rdev->wiphy.vendor_commands) | |
10132 | return -EOPNOTSUPP; | |
10133 | ||
10134 | if (IS_ERR(wdev)) { | |
10135 | err = PTR_ERR(wdev); | |
10136 | if (err != -EINVAL) | |
10137 | return err; | |
10138 | wdev = NULL; | |
10139 | } else if (wdev->wiphy != &rdev->wiphy) { | |
10140 | return -EINVAL; | |
10141 | } | |
10142 | ||
10143 | if (!info->attrs[NL80211_ATTR_VENDOR_ID] || | |
10144 | !info->attrs[NL80211_ATTR_VENDOR_SUBCMD]) | |
10145 | return -EINVAL; | |
10146 | ||
10147 | vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]); | |
10148 | subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]); | |
10149 | for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { | |
10150 | const struct wiphy_vendor_command *vcmd; | |
10151 | void *data = NULL; | |
10152 | int len = 0; | |
10153 | ||
10154 | vcmd = &rdev->wiphy.vendor_commands[i]; | |
10155 | ||
10156 | if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd) | |
10157 | continue; | |
10158 | ||
10159 | if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV | | |
10160 | WIPHY_VENDOR_CMD_NEED_NETDEV)) { | |
10161 | if (!wdev) | |
10162 | return -EINVAL; | |
10163 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV && | |
10164 | !wdev->netdev) | |
10165 | return -EINVAL; | |
10166 | ||
10167 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) { | |
10168 | if (wdev->netdev && | |
10169 | !netif_running(wdev->netdev)) | |
10170 | return -ENETDOWN; | |
10171 | if (!wdev->netdev && !wdev->p2p_started) | |
10172 | return -ENETDOWN; | |
10173 | } | |
7bdbe400 JB |
10174 | |
10175 | if (!vcmd->doit) | |
10176 | return -EOPNOTSUPP; | |
ad7e718c JB |
10177 | } else { |
10178 | wdev = NULL; | |
10179 | } | |
10180 | ||
10181 | if (info->attrs[NL80211_ATTR_VENDOR_DATA]) { | |
10182 | data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]); | |
10183 | len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]); | |
10184 | } | |
10185 | ||
10186 | rdev->cur_cmd_info = info; | |
10187 | err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev, | |
10188 | data, len); | |
10189 | rdev->cur_cmd_info = NULL; | |
10190 | return err; | |
10191 | } | |
10192 | ||
10193 | return -EOPNOTSUPP; | |
10194 | } | |
10195 | ||
7bdbe400 JB |
10196 | static int nl80211_prepare_vendor_dump(struct sk_buff *skb, |
10197 | struct netlink_callback *cb, | |
10198 | struct cfg80211_registered_device **rdev, | |
10199 | struct wireless_dev **wdev) | |
10200 | { | |
10201 | u32 vid, subcmd; | |
10202 | unsigned int i; | |
10203 | int vcmd_idx = -1; | |
10204 | int err; | |
10205 | void *data = NULL; | |
10206 | unsigned int data_len = 0; | |
10207 | ||
10208 | rtnl_lock(); | |
10209 | ||
10210 | if (cb->args[0]) { | |
10211 | /* subtract the 1 again here */ | |
10212 | struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1); | |
10213 | struct wireless_dev *tmp; | |
10214 | ||
10215 | if (!wiphy) { | |
10216 | err = -ENODEV; | |
10217 | goto out_unlock; | |
10218 | } | |
10219 | *rdev = wiphy_to_rdev(wiphy); | |
10220 | *wdev = NULL; | |
10221 | ||
10222 | if (cb->args[1]) { | |
10223 | list_for_each_entry(tmp, &(*rdev)->wdev_list, list) { | |
10224 | if (tmp->identifier == cb->args[1] - 1) { | |
10225 | *wdev = tmp; | |
10226 | break; | |
10227 | } | |
10228 | } | |
10229 | } | |
10230 | ||
10231 | /* keep rtnl locked in successful case */ | |
10232 | return 0; | |
10233 | } | |
10234 | ||
10235 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
10236 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
10237 | nl80211_policy); | |
10238 | if (err) | |
10239 | goto out_unlock; | |
10240 | ||
10241 | if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] || | |
10242 | !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) { | |
10243 | err = -EINVAL; | |
10244 | goto out_unlock; | |
10245 | } | |
10246 | ||
10247 | *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk), | |
10248 | nl80211_fam.attrbuf); | |
10249 | if (IS_ERR(*wdev)) | |
10250 | *wdev = NULL; | |
10251 | ||
10252 | *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk), | |
10253 | nl80211_fam.attrbuf); | |
10254 | if (IS_ERR(*rdev)) { | |
10255 | err = PTR_ERR(*rdev); | |
10256 | goto out_unlock; | |
10257 | } | |
10258 | ||
10259 | vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]); | |
10260 | subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]); | |
10261 | ||
10262 | for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) { | |
10263 | const struct wiphy_vendor_command *vcmd; | |
10264 | ||
10265 | vcmd = &(*rdev)->wiphy.vendor_commands[i]; | |
10266 | ||
10267 | if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd) | |
10268 | continue; | |
10269 | ||
10270 | if (!vcmd->dumpit) { | |
10271 | err = -EOPNOTSUPP; | |
10272 | goto out_unlock; | |
10273 | } | |
10274 | ||
10275 | vcmd_idx = i; | |
10276 | break; | |
10277 | } | |
10278 | ||
10279 | if (vcmd_idx < 0) { | |
10280 | err = -EOPNOTSUPP; | |
10281 | goto out_unlock; | |
10282 | } | |
10283 | ||
10284 | if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) { | |
10285 | data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]); | |
10286 | data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]); | |
10287 | } | |
10288 | ||
10289 | /* 0 is the first index - add 1 to parse only once */ | |
10290 | cb->args[0] = (*rdev)->wiphy_idx + 1; | |
10291 | /* add 1 to know if it was NULL */ | |
10292 | cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0; | |
10293 | cb->args[2] = vcmd_idx; | |
10294 | cb->args[3] = (unsigned long)data; | |
10295 | cb->args[4] = data_len; | |
10296 | ||
10297 | /* keep rtnl locked in successful case */ | |
10298 | return 0; | |
10299 | out_unlock: | |
10300 | rtnl_unlock(); | |
10301 | return err; | |
10302 | } | |
10303 | ||
10304 | static int nl80211_vendor_cmd_dump(struct sk_buff *skb, | |
10305 | struct netlink_callback *cb) | |
10306 | { | |
10307 | struct cfg80211_registered_device *rdev; | |
10308 | struct wireless_dev *wdev; | |
10309 | unsigned int vcmd_idx; | |
10310 | const struct wiphy_vendor_command *vcmd; | |
10311 | void *data; | |
10312 | int data_len; | |
10313 | int err; | |
10314 | struct nlattr *vendor_data; | |
10315 | ||
10316 | err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev); | |
10317 | if (err) | |
10318 | return err; | |
10319 | ||
10320 | vcmd_idx = cb->args[2]; | |
10321 | data = (void *)cb->args[3]; | |
10322 | data_len = cb->args[4]; | |
10323 | vcmd = &rdev->wiphy.vendor_commands[vcmd_idx]; | |
10324 | ||
10325 | if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV | | |
10326 | WIPHY_VENDOR_CMD_NEED_NETDEV)) { | |
10327 | if (!wdev) | |
10328 | return -EINVAL; | |
10329 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV && | |
10330 | !wdev->netdev) | |
10331 | return -EINVAL; | |
10332 | ||
10333 | if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) { | |
10334 | if (wdev->netdev && | |
10335 | !netif_running(wdev->netdev)) | |
10336 | return -ENETDOWN; | |
10337 | if (!wdev->netdev && !wdev->p2p_started) | |
10338 | return -ENETDOWN; | |
10339 | } | |
10340 | } | |
10341 | ||
10342 | while (1) { | |
10343 | void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid, | |
10344 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
10345 | NL80211_CMD_VENDOR); | |
10346 | if (!hdr) | |
10347 | break; | |
10348 | ||
10349 | if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
10350 | (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV, | |
10351 | wdev_id(wdev)))) { | |
10352 | genlmsg_cancel(skb, hdr); | |
10353 | break; | |
10354 | } | |
10355 | ||
10356 | vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA); | |
10357 | if (!vendor_data) { | |
10358 | genlmsg_cancel(skb, hdr); | |
10359 | break; | |
10360 | } | |
10361 | ||
10362 | err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len, | |
10363 | (unsigned long *)&cb->args[5]); | |
10364 | nla_nest_end(skb, vendor_data); | |
10365 | ||
10366 | if (err == -ENOBUFS || err == -ENOENT) { | |
10367 | genlmsg_cancel(skb, hdr); | |
10368 | break; | |
10369 | } else if (err) { | |
10370 | genlmsg_cancel(skb, hdr); | |
10371 | goto out; | |
10372 | } | |
10373 | ||
10374 | genlmsg_end(skb, hdr); | |
10375 | } | |
10376 | ||
10377 | err = skb->len; | |
10378 | out: | |
10379 | rtnl_unlock(); | |
10380 | return err; | |
10381 | } | |
10382 | ||
ad7e718c JB |
10383 | struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy, |
10384 | enum nl80211_commands cmd, | |
10385 | enum nl80211_attrs attr, | |
10386 | int approxlen) | |
10387 | { | |
f26cbf40 | 10388 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
ad7e718c JB |
10389 | |
10390 | if (WARN_ON(!rdev->cur_cmd_info)) | |
10391 | return NULL; | |
10392 | ||
6c09e791 | 10393 | return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen, |
ad7e718c JB |
10394 | rdev->cur_cmd_info->snd_portid, |
10395 | rdev->cur_cmd_info->snd_seq, | |
567ffc35 | 10396 | cmd, attr, NULL, GFP_KERNEL); |
ad7e718c JB |
10397 | } |
10398 | EXPORT_SYMBOL(__cfg80211_alloc_reply_skb); | |
10399 | ||
10400 | int cfg80211_vendor_cmd_reply(struct sk_buff *skb) | |
10401 | { | |
10402 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
10403 | void *hdr = ((void **)skb->cb)[1]; | |
10404 | struct nlattr *data = ((void **)skb->cb)[2]; | |
10405 | ||
bd8c78e7 JB |
10406 | /* clear CB data for netlink core to own from now on */ |
10407 | memset(skb->cb, 0, sizeof(skb->cb)); | |
10408 | ||
ad7e718c JB |
10409 | if (WARN_ON(!rdev->cur_cmd_info)) { |
10410 | kfree_skb(skb); | |
10411 | return -EINVAL; | |
10412 | } | |
10413 | ||
10414 | nla_nest_end(skb, data); | |
10415 | genlmsg_end(skb, hdr); | |
10416 | return genlmsg_reply(skb, rdev->cur_cmd_info); | |
10417 | } | |
10418 | EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply); | |
10419 | ||
10420 | ||
fa9ffc74 KP |
10421 | static int nl80211_set_qos_map(struct sk_buff *skb, |
10422 | struct genl_info *info) | |
10423 | { | |
10424 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10425 | struct cfg80211_qos_map *qos_map = NULL; | |
10426 | struct net_device *dev = info->user_ptr[1]; | |
10427 | u8 *pos, len, num_des, des_len, des; | |
10428 | int ret; | |
10429 | ||
10430 | if (!rdev->ops->set_qos_map) | |
10431 | return -EOPNOTSUPP; | |
10432 | ||
10433 | if (info->attrs[NL80211_ATTR_QOS_MAP]) { | |
10434 | pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]); | |
10435 | len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]); | |
10436 | ||
10437 | if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN || | |
10438 | len > IEEE80211_QOS_MAP_LEN_MAX) | |
10439 | return -EINVAL; | |
10440 | ||
10441 | qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL); | |
10442 | if (!qos_map) | |
10443 | return -ENOMEM; | |
10444 | ||
10445 | num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1; | |
10446 | if (num_des) { | |
10447 | des_len = num_des * | |
10448 | sizeof(struct cfg80211_dscp_exception); | |
10449 | memcpy(qos_map->dscp_exception, pos, des_len); | |
10450 | qos_map->num_des = num_des; | |
10451 | for (des = 0; des < num_des; des++) { | |
10452 | if (qos_map->dscp_exception[des].up > 7) { | |
10453 | kfree(qos_map); | |
10454 | return -EINVAL; | |
10455 | } | |
10456 | } | |
10457 | pos += des_len; | |
10458 | } | |
10459 | memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN); | |
10460 | } | |
10461 | ||
10462 | wdev_lock(dev->ieee80211_ptr); | |
10463 | ret = nl80211_key_allowed(dev->ieee80211_ptr); | |
10464 | if (!ret) | |
10465 | ret = rdev_set_qos_map(rdev, dev, qos_map); | |
10466 | wdev_unlock(dev->ieee80211_ptr); | |
10467 | ||
10468 | kfree(qos_map); | |
10469 | return ret; | |
10470 | } | |
10471 | ||
960d01ac JB |
10472 | static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info) |
10473 | { | |
10474 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10475 | struct net_device *dev = info->user_ptr[1]; | |
10476 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10477 | const u8 *peer; | |
10478 | u8 tsid, up; | |
10479 | u16 admitted_time = 0; | |
10480 | int err; | |
10481 | ||
723e73ac | 10482 | if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)) |
960d01ac JB |
10483 | return -EOPNOTSUPP; |
10484 | ||
10485 | if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] || | |
10486 | !info->attrs[NL80211_ATTR_USER_PRIO]) | |
10487 | return -EINVAL; | |
10488 | ||
10489 | tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]); | |
10490 | if (tsid >= IEEE80211_NUM_TIDS) | |
10491 | return -EINVAL; | |
10492 | ||
10493 | up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]); | |
10494 | if (up >= IEEE80211_NUM_UPS) | |
10495 | return -EINVAL; | |
10496 | ||
10497 | /* WMM uses TIDs 0-7 even for TSPEC */ | |
723e73ac | 10498 | if (tsid >= IEEE80211_FIRST_TSPEC_TSID) { |
960d01ac | 10499 | /* TODO: handle 802.11 TSPEC/admission control |
723e73ac JB |
10500 | * need more attributes for that (e.g. BA session requirement); |
10501 | * change the WMM adminssion test above to allow both then | |
960d01ac JB |
10502 | */ |
10503 | return -EINVAL; | |
10504 | } | |
10505 | ||
10506 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10507 | ||
10508 | if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) { | |
10509 | admitted_time = | |
10510 | nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]); | |
10511 | if (!admitted_time) | |
10512 | return -EINVAL; | |
10513 | } | |
10514 | ||
10515 | wdev_lock(wdev); | |
10516 | switch (wdev->iftype) { | |
10517 | case NL80211_IFTYPE_STATION: | |
10518 | case NL80211_IFTYPE_P2P_CLIENT: | |
10519 | if (wdev->current_bss) | |
10520 | break; | |
10521 | err = -ENOTCONN; | |
10522 | goto out; | |
10523 | default: | |
10524 | err = -EOPNOTSUPP; | |
10525 | goto out; | |
10526 | } | |
10527 | ||
10528 | err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time); | |
10529 | ||
10530 | out: | |
10531 | wdev_unlock(wdev); | |
10532 | return err; | |
10533 | } | |
10534 | ||
10535 | static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info) | |
10536 | { | |
10537 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10538 | struct net_device *dev = info->user_ptr[1]; | |
10539 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10540 | const u8 *peer; | |
10541 | u8 tsid; | |
10542 | int err; | |
10543 | ||
10544 | if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC]) | |
10545 | return -EINVAL; | |
10546 | ||
10547 | tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]); | |
10548 | peer = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10549 | ||
10550 | wdev_lock(wdev); | |
10551 | err = rdev_del_tx_ts(rdev, dev, tsid, peer); | |
10552 | wdev_unlock(wdev); | |
10553 | ||
10554 | return err; | |
10555 | } | |
10556 | ||
1057d35e AN |
10557 | static int nl80211_tdls_channel_switch(struct sk_buff *skb, |
10558 | struct genl_info *info) | |
10559 | { | |
10560 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10561 | struct net_device *dev = info->user_ptr[1]; | |
10562 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10563 | struct cfg80211_chan_def chandef = {}; | |
10564 | const u8 *addr; | |
10565 | u8 oper_class; | |
10566 | int err; | |
10567 | ||
10568 | if (!rdev->ops->tdls_channel_switch || | |
10569 | !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH)) | |
10570 | return -EOPNOTSUPP; | |
10571 | ||
10572 | switch (dev->ieee80211_ptr->iftype) { | |
10573 | case NL80211_IFTYPE_STATION: | |
10574 | case NL80211_IFTYPE_P2P_CLIENT: | |
10575 | break; | |
10576 | default: | |
10577 | return -EOPNOTSUPP; | |
10578 | } | |
10579 | ||
10580 | if (!info->attrs[NL80211_ATTR_MAC] || | |
10581 | !info->attrs[NL80211_ATTR_OPER_CLASS]) | |
10582 | return -EINVAL; | |
10583 | ||
10584 | err = nl80211_parse_chandef(rdev, info, &chandef); | |
10585 | if (err) | |
10586 | return err; | |
10587 | ||
10588 | /* | |
10589 | * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012 | |
10590 | * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the | |
10591 | * specification is not defined for them. | |
10592 | */ | |
10593 | if (chandef.chan->band == IEEE80211_BAND_2GHZ && | |
10594 | chandef.width != NL80211_CHAN_WIDTH_20_NOHT && | |
10595 | chandef.width != NL80211_CHAN_WIDTH_20) | |
10596 | return -EINVAL; | |
10597 | ||
10598 | /* we will be active on the TDLS link */ | |
923b352f AN |
10599 | if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef, |
10600 | wdev->iftype)) | |
1057d35e AN |
10601 | return -EINVAL; |
10602 | ||
10603 | /* don't allow switching to DFS channels */ | |
10604 | if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype)) | |
10605 | return -EINVAL; | |
10606 | ||
10607 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10608 | oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]); | |
10609 | ||
10610 | wdev_lock(wdev); | |
10611 | err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef); | |
10612 | wdev_unlock(wdev); | |
10613 | ||
10614 | return err; | |
10615 | } | |
10616 | ||
10617 | static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb, | |
10618 | struct genl_info *info) | |
10619 | { | |
10620 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
10621 | struct net_device *dev = info->user_ptr[1]; | |
10622 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
10623 | const u8 *addr; | |
10624 | ||
10625 | if (!rdev->ops->tdls_channel_switch || | |
10626 | !rdev->ops->tdls_cancel_channel_switch || | |
10627 | !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH)) | |
10628 | return -EOPNOTSUPP; | |
10629 | ||
10630 | switch (dev->ieee80211_ptr->iftype) { | |
10631 | case NL80211_IFTYPE_STATION: | |
10632 | case NL80211_IFTYPE_P2P_CLIENT: | |
10633 | break; | |
10634 | default: | |
10635 | return -EOPNOTSUPP; | |
10636 | } | |
10637 | ||
10638 | if (!info->attrs[NL80211_ATTR_MAC]) | |
10639 | return -EINVAL; | |
10640 | ||
10641 | addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
10642 | ||
10643 | wdev_lock(wdev); | |
10644 | rdev_tdls_cancel_channel_switch(rdev, dev, addr); | |
10645 | wdev_unlock(wdev); | |
10646 | ||
10647 | return 0; | |
10648 | } | |
10649 | ||
4c476991 JB |
10650 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
10651 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
10652 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
10653 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
10654 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
10655 | NL80211_FLAG_CHECK_NETDEV_UP) | |
1bf614ef | 10656 | #define NL80211_FLAG_NEED_WDEV 0x10 |
98104fde | 10657 | /* If a netdev is associated, it must be UP, P2P must be started */ |
1bf614ef JB |
10658 | #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\ |
10659 | NL80211_FLAG_CHECK_NETDEV_UP) | |
5393b917 | 10660 | #define NL80211_FLAG_CLEAR_SKB 0x20 |
4c476991 | 10661 | |
f84f771d | 10662 | static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 JB |
10663 | struct genl_info *info) |
10664 | { | |
10665 | struct cfg80211_registered_device *rdev; | |
89a54e48 | 10666 | struct wireless_dev *wdev; |
4c476991 | 10667 | struct net_device *dev; |
4c476991 JB |
10668 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; |
10669 | ||
10670 | if (rtnl) | |
10671 | rtnl_lock(); | |
10672 | ||
10673 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
4f7eff10 | 10674 | rdev = cfg80211_get_dev_from_info(genl_info_net(info), info); |
4c476991 JB |
10675 | if (IS_ERR(rdev)) { |
10676 | if (rtnl) | |
10677 | rtnl_unlock(); | |
10678 | return PTR_ERR(rdev); | |
10679 | } | |
10680 | info->user_ptr[0] = rdev; | |
1bf614ef JB |
10681 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV || |
10682 | ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
5fe231e8 JB |
10683 | ASSERT_RTNL(); |
10684 | ||
89a54e48 JB |
10685 | wdev = __cfg80211_wdev_from_attrs(genl_info_net(info), |
10686 | info->attrs); | |
10687 | if (IS_ERR(wdev)) { | |
4c476991 JB |
10688 | if (rtnl) |
10689 | rtnl_unlock(); | |
89a54e48 | 10690 | return PTR_ERR(wdev); |
4c476991 | 10691 | } |
89a54e48 | 10692 | |
89a54e48 | 10693 | dev = wdev->netdev; |
f26cbf40 | 10694 | rdev = wiphy_to_rdev(wdev->wiphy); |
89a54e48 | 10695 | |
1bf614ef JB |
10696 | if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { |
10697 | if (!dev) { | |
1bf614ef JB |
10698 | if (rtnl) |
10699 | rtnl_unlock(); | |
10700 | return -EINVAL; | |
10701 | } | |
10702 | ||
10703 | info->user_ptr[1] = dev; | |
10704 | } else { | |
10705 | info->user_ptr[1] = wdev; | |
41265714 | 10706 | } |
1bf614ef JB |
10707 | |
10708 | if (dev) { | |
10709 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && | |
10710 | !netif_running(dev)) { | |
1bf614ef JB |
10711 | if (rtnl) |
10712 | rtnl_unlock(); | |
10713 | return -ENETDOWN; | |
10714 | } | |
10715 | ||
10716 | dev_hold(dev); | |
98104fde JB |
10717 | } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) { |
10718 | if (!wdev->p2p_started) { | |
98104fde JB |
10719 | if (rtnl) |
10720 | rtnl_unlock(); | |
10721 | return -ENETDOWN; | |
10722 | } | |
41265714 | 10723 | } |
89a54e48 | 10724 | |
4c476991 | 10725 | info->user_ptr[0] = rdev; |
4c476991 JB |
10726 | } |
10727 | ||
10728 | return 0; | |
10729 | } | |
10730 | ||
f84f771d | 10731 | static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb, |
4c476991 JB |
10732 | struct genl_info *info) |
10733 | { | |
1bf614ef JB |
10734 | if (info->user_ptr[1]) { |
10735 | if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) { | |
10736 | struct wireless_dev *wdev = info->user_ptr[1]; | |
10737 | ||
10738 | if (wdev->netdev) | |
10739 | dev_put(wdev->netdev); | |
10740 | } else { | |
10741 | dev_put(info->user_ptr[1]); | |
10742 | } | |
10743 | } | |
5393b917 | 10744 | |
4c476991 JB |
10745 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) |
10746 | rtnl_unlock(); | |
5393b917 JB |
10747 | |
10748 | /* If needed, clear the netlink message payload from the SKB | |
10749 | * as it might contain key data that shouldn't stick around on | |
10750 | * the heap after the SKB is freed. The netlink message header | |
10751 | * is still needed for further processing, so leave it intact. | |
10752 | */ | |
10753 | if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) { | |
10754 | struct nlmsghdr *nlh = nlmsg_hdr(skb); | |
10755 | ||
10756 | memset(nlmsg_data(nlh), 0, nlmsg_len(nlh)); | |
10757 | } | |
4c476991 JB |
10758 | } |
10759 | ||
4534de83 | 10760 | static const struct genl_ops nl80211_ops[] = { |
55682965 JB |
10761 | { |
10762 | .cmd = NL80211_CMD_GET_WIPHY, | |
10763 | .doit = nl80211_get_wiphy, | |
10764 | .dumpit = nl80211_dump_wiphy, | |
86e8cf98 | 10765 | .done = nl80211_dump_wiphy_done, |
55682965 JB |
10766 | .policy = nl80211_policy, |
10767 | /* can be retrieved by unprivileged users */ | |
5fe231e8 JB |
10768 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
10769 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
10770 | }, |
10771 | { | |
10772 | .cmd = NL80211_CMD_SET_WIPHY, | |
10773 | .doit = nl80211_set_wiphy, | |
10774 | .policy = nl80211_policy, | |
10775 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 10776 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
10777 | }, |
10778 | { | |
10779 | .cmd = NL80211_CMD_GET_INTERFACE, | |
10780 | .doit = nl80211_get_interface, | |
10781 | .dumpit = nl80211_dump_interface, | |
10782 | .policy = nl80211_policy, | |
10783 | /* can be retrieved by unprivileged users */ | |
5fe231e8 JB |
10784 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
10785 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
10786 | }, |
10787 | { | |
10788 | .cmd = NL80211_CMD_SET_INTERFACE, | |
10789 | .doit = nl80211_set_interface, | |
10790 | .policy = nl80211_policy, | |
10791 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
10792 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
10793 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
10794 | }, |
10795 | { | |
10796 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
10797 | .doit = nl80211_new_interface, | |
10798 | .policy = nl80211_policy, | |
10799 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
10800 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
10801 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
10802 | }, |
10803 | { | |
10804 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
10805 | .doit = nl80211_del_interface, | |
10806 | .policy = nl80211_policy, | |
41ade00f | 10807 | .flags = GENL_ADMIN_PERM, |
84efbb84 | 10808 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 10809 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
10810 | }, |
10811 | { | |
10812 | .cmd = NL80211_CMD_GET_KEY, | |
10813 | .doit = nl80211_get_key, | |
10814 | .policy = nl80211_policy, | |
10815 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 10816 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10817 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
10818 | }, |
10819 | { | |
10820 | .cmd = NL80211_CMD_SET_KEY, | |
10821 | .doit = nl80211_set_key, | |
10822 | .policy = nl80211_policy, | |
10823 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10824 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
5393b917 JB |
10825 | NL80211_FLAG_NEED_RTNL | |
10826 | NL80211_FLAG_CLEAR_SKB, | |
41ade00f JB |
10827 | }, |
10828 | { | |
10829 | .cmd = NL80211_CMD_NEW_KEY, | |
10830 | .doit = nl80211_new_key, | |
10831 | .policy = nl80211_policy, | |
10832 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10833 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
5393b917 JB |
10834 | NL80211_FLAG_NEED_RTNL | |
10835 | NL80211_FLAG_CLEAR_SKB, | |
41ade00f JB |
10836 | }, |
10837 | { | |
10838 | .cmd = NL80211_CMD_DEL_KEY, | |
10839 | .doit = nl80211_del_key, | |
10840 | .policy = nl80211_policy, | |
55682965 | 10841 | .flags = GENL_ADMIN_PERM, |
41265714 | 10842 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10843 | NL80211_FLAG_NEED_RTNL, |
55682965 | 10844 | }, |
ed1b6cc7 JB |
10845 | { |
10846 | .cmd = NL80211_CMD_SET_BEACON, | |
10847 | .policy = nl80211_policy, | |
10848 | .flags = GENL_ADMIN_PERM, | |
8860020e | 10849 | .doit = nl80211_set_beacon, |
2b5f8b0b | 10850 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10851 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
10852 | }, |
10853 | { | |
8860020e | 10854 | .cmd = NL80211_CMD_START_AP, |
ed1b6cc7 JB |
10855 | .policy = nl80211_policy, |
10856 | .flags = GENL_ADMIN_PERM, | |
8860020e | 10857 | .doit = nl80211_start_ap, |
2b5f8b0b | 10858 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10859 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 JB |
10860 | }, |
10861 | { | |
8860020e | 10862 | .cmd = NL80211_CMD_STOP_AP, |
ed1b6cc7 JB |
10863 | .policy = nl80211_policy, |
10864 | .flags = GENL_ADMIN_PERM, | |
8860020e | 10865 | .doit = nl80211_stop_ap, |
2b5f8b0b | 10866 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10867 | NL80211_FLAG_NEED_RTNL, |
ed1b6cc7 | 10868 | }, |
5727ef1b JB |
10869 | { |
10870 | .cmd = NL80211_CMD_GET_STATION, | |
10871 | .doit = nl80211_get_station, | |
2ec600d6 | 10872 | .dumpit = nl80211_dump_station, |
5727ef1b | 10873 | .policy = nl80211_policy, |
4c476991 JB |
10874 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
10875 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
10876 | }, |
10877 | { | |
10878 | .cmd = NL80211_CMD_SET_STATION, | |
10879 | .doit = nl80211_set_station, | |
10880 | .policy = nl80211_policy, | |
10881 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 10882 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10883 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
10884 | }, |
10885 | { | |
10886 | .cmd = NL80211_CMD_NEW_STATION, | |
10887 | .doit = nl80211_new_station, | |
10888 | .policy = nl80211_policy, | |
10889 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10890 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10891 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
10892 | }, |
10893 | { | |
10894 | .cmd = NL80211_CMD_DEL_STATION, | |
10895 | .doit = nl80211_del_station, | |
10896 | .policy = nl80211_policy, | |
2ec600d6 | 10897 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 10898 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10899 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
10900 | }, |
10901 | { | |
10902 | .cmd = NL80211_CMD_GET_MPATH, | |
10903 | .doit = nl80211_get_mpath, | |
10904 | .dumpit = nl80211_dump_mpath, | |
10905 | .policy = nl80211_policy, | |
10906 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10907 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10908 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 | 10909 | }, |
66be7d2b HR |
10910 | { |
10911 | .cmd = NL80211_CMD_GET_MPP, | |
10912 | .doit = nl80211_get_mpp, | |
10913 | .dumpit = nl80211_dump_mpp, | |
10914 | .policy = nl80211_policy, | |
10915 | .flags = GENL_ADMIN_PERM, | |
10916 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
10917 | NL80211_FLAG_NEED_RTNL, | |
10918 | }, | |
2ec600d6 LCC |
10919 | { |
10920 | .cmd = NL80211_CMD_SET_MPATH, | |
10921 | .doit = nl80211_set_mpath, | |
10922 | .policy = nl80211_policy, | |
10923 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10924 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10925 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
10926 | }, |
10927 | { | |
10928 | .cmd = NL80211_CMD_NEW_MPATH, | |
10929 | .doit = nl80211_new_mpath, | |
10930 | .policy = nl80211_policy, | |
10931 | .flags = GENL_ADMIN_PERM, | |
41265714 | 10932 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10933 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
10934 | }, |
10935 | { | |
10936 | .cmd = NL80211_CMD_DEL_MPATH, | |
10937 | .doit = nl80211_del_mpath, | |
10938 | .policy = nl80211_policy, | |
9f1ba906 | 10939 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 10940 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10941 | NL80211_FLAG_NEED_RTNL, |
9f1ba906 JM |
10942 | }, |
10943 | { | |
10944 | .cmd = NL80211_CMD_SET_BSS, | |
10945 | .doit = nl80211_set_bss, | |
10946 | .policy = nl80211_policy, | |
b2e1b302 | 10947 | .flags = GENL_ADMIN_PERM, |
2b5f8b0b | 10948 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10949 | NL80211_FLAG_NEED_RTNL, |
b2e1b302 | 10950 | }, |
f130347c LR |
10951 | { |
10952 | .cmd = NL80211_CMD_GET_REG, | |
ad30ca2c AN |
10953 | .doit = nl80211_get_reg_do, |
10954 | .dumpit = nl80211_get_reg_dump, | |
f130347c | 10955 | .policy = nl80211_policy, |
5fe231e8 | 10956 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
f130347c LR |
10957 | /* can be retrieved by unprivileged users */ |
10958 | }, | |
b6863036 | 10959 | #ifdef CONFIG_CFG80211_CRDA_SUPPORT |
b2e1b302 LR |
10960 | { |
10961 | .cmd = NL80211_CMD_SET_REG, | |
10962 | .doit = nl80211_set_reg, | |
10963 | .policy = nl80211_policy, | |
10964 | .flags = GENL_ADMIN_PERM, | |
5fe231e8 | 10965 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
b2e1b302 | 10966 | }, |
b6863036 | 10967 | #endif |
b2e1b302 LR |
10968 | { |
10969 | .cmd = NL80211_CMD_REQ_SET_REG, | |
10970 | .doit = nl80211_req_set_reg, | |
10971 | .policy = nl80211_policy, | |
93da9cc1 | 10972 | .flags = GENL_ADMIN_PERM, |
10973 | }, | |
10974 | { | |
24bdd9f4 JC |
10975 | .cmd = NL80211_CMD_GET_MESH_CONFIG, |
10976 | .doit = nl80211_get_mesh_config, | |
93da9cc1 | 10977 | .policy = nl80211_policy, |
10978 | /* can be retrieved by unprivileged users */ | |
2b5f8b0b | 10979 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10980 | NL80211_FLAG_NEED_RTNL, |
93da9cc1 | 10981 | }, |
10982 | { | |
24bdd9f4 JC |
10983 | .cmd = NL80211_CMD_SET_MESH_CONFIG, |
10984 | .doit = nl80211_update_mesh_config, | |
93da9cc1 | 10985 | .policy = nl80211_policy, |
9aed3cc1 | 10986 | .flags = GENL_ADMIN_PERM, |
29cbe68c | 10987 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 10988 | NL80211_FLAG_NEED_RTNL, |
9aed3cc1 | 10989 | }, |
2a519311 JB |
10990 | { |
10991 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
10992 | .doit = nl80211_trigger_scan, | |
10993 | .policy = nl80211_policy, | |
10994 | .flags = GENL_ADMIN_PERM, | |
fd014284 | 10995 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 10996 | NL80211_FLAG_NEED_RTNL, |
2a519311 | 10997 | }, |
91d3ab46 VK |
10998 | { |
10999 | .cmd = NL80211_CMD_ABORT_SCAN, | |
11000 | .doit = nl80211_abort_scan, | |
11001 | .policy = nl80211_policy, | |
11002 | .flags = GENL_ADMIN_PERM, | |
11003 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
11004 | NL80211_FLAG_NEED_RTNL, | |
11005 | }, | |
2a519311 JB |
11006 | { |
11007 | .cmd = NL80211_CMD_GET_SCAN, | |
11008 | .policy = nl80211_policy, | |
11009 | .dumpit = nl80211_dump_scan, | |
11010 | }, | |
807f8a8c LC |
11011 | { |
11012 | .cmd = NL80211_CMD_START_SCHED_SCAN, | |
11013 | .doit = nl80211_start_sched_scan, | |
11014 | .policy = nl80211_policy, | |
11015 | .flags = GENL_ADMIN_PERM, | |
11016 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11017 | NL80211_FLAG_NEED_RTNL, | |
11018 | }, | |
11019 | { | |
11020 | .cmd = NL80211_CMD_STOP_SCHED_SCAN, | |
11021 | .doit = nl80211_stop_sched_scan, | |
11022 | .policy = nl80211_policy, | |
11023 | .flags = GENL_ADMIN_PERM, | |
11024 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11025 | NL80211_FLAG_NEED_RTNL, | |
11026 | }, | |
636a5d36 JM |
11027 | { |
11028 | .cmd = NL80211_CMD_AUTHENTICATE, | |
11029 | .doit = nl80211_authenticate, | |
11030 | .policy = nl80211_policy, | |
11031 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11032 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
5393b917 JB |
11033 | NL80211_FLAG_NEED_RTNL | |
11034 | NL80211_FLAG_CLEAR_SKB, | |
636a5d36 JM |
11035 | }, |
11036 | { | |
11037 | .cmd = NL80211_CMD_ASSOCIATE, | |
11038 | .doit = nl80211_associate, | |
11039 | .policy = nl80211_policy, | |
11040 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11041 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11042 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
11043 | }, |
11044 | { | |
11045 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
11046 | .doit = nl80211_deauthenticate, | |
11047 | .policy = nl80211_policy, | |
11048 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11049 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11050 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
11051 | }, |
11052 | { | |
11053 | .cmd = NL80211_CMD_DISASSOCIATE, | |
11054 | .doit = nl80211_disassociate, | |
11055 | .policy = nl80211_policy, | |
11056 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11057 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11058 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 11059 | }, |
04a773ad JB |
11060 | { |
11061 | .cmd = NL80211_CMD_JOIN_IBSS, | |
11062 | .doit = nl80211_join_ibss, | |
11063 | .policy = nl80211_policy, | |
11064 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11065 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11066 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
11067 | }, |
11068 | { | |
11069 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
11070 | .doit = nl80211_leave_ibss, | |
11071 | .policy = nl80211_policy, | |
11072 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11073 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11074 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 11075 | }, |
aff89a9b JB |
11076 | #ifdef CONFIG_NL80211_TESTMODE |
11077 | { | |
11078 | .cmd = NL80211_CMD_TESTMODE, | |
11079 | .doit = nl80211_testmode_do, | |
71063f0e | 11080 | .dumpit = nl80211_testmode_dump, |
aff89a9b JB |
11081 | .policy = nl80211_policy, |
11082 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11083 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
11084 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
11085 | }, |
11086 | #endif | |
b23aa676 SO |
11087 | { |
11088 | .cmd = NL80211_CMD_CONNECT, | |
11089 | .doit = nl80211_connect, | |
11090 | .policy = nl80211_policy, | |
11091 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11092 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11093 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
11094 | }, |
11095 | { | |
11096 | .cmd = NL80211_CMD_DISCONNECT, | |
11097 | .doit = nl80211_disconnect, | |
11098 | .policy = nl80211_policy, | |
11099 | .flags = GENL_ADMIN_PERM, | |
41265714 | 11100 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11101 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 11102 | }, |
463d0183 JB |
11103 | { |
11104 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
11105 | .doit = nl80211_wiphy_netns, | |
11106 | .policy = nl80211_policy, | |
11107 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11108 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
11109 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 11110 | }, |
61fa713c HS |
11111 | { |
11112 | .cmd = NL80211_CMD_GET_SURVEY, | |
11113 | .policy = nl80211_policy, | |
11114 | .dumpit = nl80211_dump_survey, | |
11115 | }, | |
67fbb16b SO |
11116 | { |
11117 | .cmd = NL80211_CMD_SET_PMKSA, | |
11118 | .doit = nl80211_setdel_pmksa, | |
11119 | .policy = nl80211_policy, | |
11120 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 11121 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11122 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
11123 | }, |
11124 | { | |
11125 | .cmd = NL80211_CMD_DEL_PMKSA, | |
11126 | .doit = nl80211_setdel_pmksa, | |
11127 | .policy = nl80211_policy, | |
11128 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 11129 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11130 | NL80211_FLAG_NEED_RTNL, |
67fbb16b SO |
11131 | }, |
11132 | { | |
11133 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
11134 | .doit = nl80211_flush_pmksa, | |
11135 | .policy = nl80211_policy, | |
11136 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 11137 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 11138 | NL80211_FLAG_NEED_RTNL, |
67fbb16b | 11139 | }, |
9588bbd5 JM |
11140 | { |
11141 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
11142 | .doit = nl80211_remain_on_channel, | |
11143 | .policy = nl80211_policy, | |
11144 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 11145 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 11146 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
11147 | }, |
11148 | { | |
11149 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
11150 | .doit = nl80211_cancel_remain_on_channel, | |
11151 | .policy = nl80211_policy, | |
11152 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 11153 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 11154 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 11155 | }, |
13ae75b1 JM |
11156 | { |
11157 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
11158 | .doit = nl80211_set_tx_bitrate_mask, | |
11159 | .policy = nl80211_policy, | |
11160 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11161 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11162 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 11163 | }, |
026331c4 | 11164 | { |
2e161f78 JB |
11165 | .cmd = NL80211_CMD_REGISTER_FRAME, |
11166 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
11167 | .policy = nl80211_policy, |
11168 | .flags = GENL_ADMIN_PERM, | |
71bbc994 | 11169 | .internal_flags = NL80211_FLAG_NEED_WDEV | |
4c476991 | 11170 | NL80211_FLAG_NEED_RTNL, |
026331c4 JM |
11171 | }, |
11172 | { | |
2e161f78 JB |
11173 | .cmd = NL80211_CMD_FRAME, |
11174 | .doit = nl80211_tx_mgmt, | |
026331c4 | 11175 | .policy = nl80211_policy, |
f7ca38df | 11176 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 11177 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
f7ca38df JB |
11178 | NL80211_FLAG_NEED_RTNL, |
11179 | }, | |
11180 | { | |
11181 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
11182 | .doit = nl80211_tx_mgmt_cancel_wait, | |
11183 | .policy = nl80211_policy, | |
026331c4 | 11184 | .flags = GENL_ADMIN_PERM, |
71bbc994 | 11185 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | |
4c476991 | 11186 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 11187 | }, |
ffb9eb3d KV |
11188 | { |
11189 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
11190 | .doit = nl80211_set_power_save, | |
11191 | .policy = nl80211_policy, | |
11192 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11193 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11194 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
11195 | }, |
11196 | { | |
11197 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
11198 | .doit = nl80211_get_power_save, | |
11199 | .policy = nl80211_policy, | |
11200 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
11201 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11202 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 11203 | }, |
d6dc1a38 JO |
11204 | { |
11205 | .cmd = NL80211_CMD_SET_CQM, | |
11206 | .doit = nl80211_set_cqm, | |
11207 | .policy = nl80211_policy, | |
11208 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11209 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11210 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 11211 | }, |
f444de05 JB |
11212 | { |
11213 | .cmd = NL80211_CMD_SET_CHANNEL, | |
11214 | .doit = nl80211_set_channel, | |
11215 | .policy = nl80211_policy, | |
11216 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
11217 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11218 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 11219 | }, |
e8347eba BJ |
11220 | { |
11221 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
11222 | .doit = nl80211_set_wds_peer, | |
11223 | .policy = nl80211_policy, | |
11224 | .flags = GENL_ADMIN_PERM, | |
43b19952 JB |
11225 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
11226 | NL80211_FLAG_NEED_RTNL, | |
e8347eba | 11227 | }, |
29cbe68c JB |
11228 | { |
11229 | .cmd = NL80211_CMD_JOIN_MESH, | |
11230 | .doit = nl80211_join_mesh, | |
11231 | .policy = nl80211_policy, | |
11232 | .flags = GENL_ADMIN_PERM, | |
11233 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11234 | NL80211_FLAG_NEED_RTNL, | |
11235 | }, | |
11236 | { | |
11237 | .cmd = NL80211_CMD_LEAVE_MESH, | |
11238 | .doit = nl80211_leave_mesh, | |
11239 | .policy = nl80211_policy, | |
11240 | .flags = GENL_ADMIN_PERM, | |
11241 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11242 | NL80211_FLAG_NEED_RTNL, | |
11243 | }, | |
6e0bd6c3 RL |
11244 | { |
11245 | .cmd = NL80211_CMD_JOIN_OCB, | |
11246 | .doit = nl80211_join_ocb, | |
11247 | .policy = nl80211_policy, | |
11248 | .flags = GENL_ADMIN_PERM, | |
11249 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11250 | NL80211_FLAG_NEED_RTNL, | |
11251 | }, | |
11252 | { | |
11253 | .cmd = NL80211_CMD_LEAVE_OCB, | |
11254 | .doit = nl80211_leave_ocb, | |
11255 | .policy = nl80211_policy, | |
11256 | .flags = GENL_ADMIN_PERM, | |
11257 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11258 | NL80211_FLAG_NEED_RTNL, | |
11259 | }, | |
dfb89c56 | 11260 | #ifdef CONFIG_PM |
ff1b6e69 JB |
11261 | { |
11262 | .cmd = NL80211_CMD_GET_WOWLAN, | |
11263 | .doit = nl80211_get_wowlan, | |
11264 | .policy = nl80211_policy, | |
11265 | /* can be retrieved by unprivileged users */ | |
11266 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11267 | NL80211_FLAG_NEED_RTNL, | |
11268 | }, | |
11269 | { | |
11270 | .cmd = NL80211_CMD_SET_WOWLAN, | |
11271 | .doit = nl80211_set_wowlan, | |
11272 | .policy = nl80211_policy, | |
11273 | .flags = GENL_ADMIN_PERM, | |
11274 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11275 | NL80211_FLAG_NEED_RTNL, | |
11276 | }, | |
dfb89c56 | 11277 | #endif |
e5497d76 JB |
11278 | { |
11279 | .cmd = NL80211_CMD_SET_REKEY_OFFLOAD, | |
11280 | .doit = nl80211_set_rekey_data, | |
11281 | .policy = nl80211_policy, | |
11282 | .flags = GENL_ADMIN_PERM, | |
11283 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
5393b917 JB |
11284 | NL80211_FLAG_NEED_RTNL | |
11285 | NL80211_FLAG_CLEAR_SKB, | |
e5497d76 | 11286 | }, |
109086ce AN |
11287 | { |
11288 | .cmd = NL80211_CMD_TDLS_MGMT, | |
11289 | .doit = nl80211_tdls_mgmt, | |
11290 | .policy = nl80211_policy, | |
11291 | .flags = GENL_ADMIN_PERM, | |
11292 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11293 | NL80211_FLAG_NEED_RTNL, | |
11294 | }, | |
11295 | { | |
11296 | .cmd = NL80211_CMD_TDLS_OPER, | |
11297 | .doit = nl80211_tdls_oper, | |
11298 | .policy = nl80211_policy, | |
11299 | .flags = GENL_ADMIN_PERM, | |
11300 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11301 | NL80211_FLAG_NEED_RTNL, | |
11302 | }, | |
28946da7 JB |
11303 | { |
11304 | .cmd = NL80211_CMD_UNEXPECTED_FRAME, | |
11305 | .doit = nl80211_register_unexpected_frame, | |
11306 | .policy = nl80211_policy, | |
11307 | .flags = GENL_ADMIN_PERM, | |
11308 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
11309 | NL80211_FLAG_NEED_RTNL, | |
11310 | }, | |
7f6cf311 JB |
11311 | { |
11312 | .cmd = NL80211_CMD_PROBE_CLIENT, | |
11313 | .doit = nl80211_probe_client, | |
11314 | .policy = nl80211_policy, | |
11315 | .flags = GENL_ADMIN_PERM, | |
2b5f8b0b | 11316 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
7f6cf311 JB |
11317 | NL80211_FLAG_NEED_RTNL, |
11318 | }, | |
5e760230 JB |
11319 | { |
11320 | .cmd = NL80211_CMD_REGISTER_BEACONS, | |
11321 | .doit = nl80211_register_beacons, | |
11322 | .policy = nl80211_policy, | |
11323 | .flags = GENL_ADMIN_PERM, | |
11324 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11325 | NL80211_FLAG_NEED_RTNL, | |
11326 | }, | |
1d9d9213 SW |
11327 | { |
11328 | .cmd = NL80211_CMD_SET_NOACK_MAP, | |
11329 | .doit = nl80211_set_noack_map, | |
11330 | .policy = nl80211_policy, | |
11331 | .flags = GENL_ADMIN_PERM, | |
11332 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
11333 | NL80211_FLAG_NEED_RTNL, | |
11334 | }, | |
98104fde JB |
11335 | { |
11336 | .cmd = NL80211_CMD_START_P2P_DEVICE, | |
11337 | .doit = nl80211_start_p2p_device, | |
11338 | .policy = nl80211_policy, | |
11339 | .flags = GENL_ADMIN_PERM, | |
11340 | .internal_flags = NL80211_FLAG_NEED_WDEV | | |
11341 | NL80211_FLAG_NEED_RTNL, | |
11342 | }, | |
11343 | { | |
11344 | .cmd = NL80211_CMD_STOP_P2P_DEVICE, | |
11345 | .doit = nl80211_stop_p2p_device, | |
11346 | .policy = nl80211_policy, | |
11347 | .flags = GENL_ADMIN_PERM, | |
11348 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
11349 | NL80211_FLAG_NEED_RTNL, | |
11350 | }, | |
f4e583c8 AQ |
11351 | { |
11352 | .cmd = NL80211_CMD_SET_MCAST_RATE, | |
11353 | .doit = nl80211_set_mcast_rate, | |
77765eaf VT |
11354 | .policy = nl80211_policy, |
11355 | .flags = GENL_ADMIN_PERM, | |
11356 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
11357 | NL80211_FLAG_NEED_RTNL, | |
11358 | }, | |
11359 | { | |
11360 | .cmd = NL80211_CMD_SET_MAC_ACL, | |
11361 | .doit = nl80211_set_mac_acl, | |
f4e583c8 AQ |
11362 | .policy = nl80211_policy, |
11363 | .flags = GENL_ADMIN_PERM, | |
11364 | .internal_flags = NL80211_FLAG_NEED_NETDEV | | |
11365 | NL80211_FLAG_NEED_RTNL, | |
11366 | }, | |
04f39047 SW |
11367 | { |
11368 | .cmd = NL80211_CMD_RADAR_DETECT, | |
11369 | .doit = nl80211_start_radar_detection, | |
11370 | .policy = nl80211_policy, | |
11371 | .flags = GENL_ADMIN_PERM, | |
11372 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11373 | NL80211_FLAG_NEED_RTNL, | |
11374 | }, | |
3713b4e3 JB |
11375 | { |
11376 | .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES, | |
11377 | .doit = nl80211_get_protocol_features, | |
11378 | .policy = nl80211_policy, | |
11379 | }, | |
355199e0 JM |
11380 | { |
11381 | .cmd = NL80211_CMD_UPDATE_FT_IES, | |
11382 | .doit = nl80211_update_ft_ies, | |
11383 | .policy = nl80211_policy, | |
11384 | .flags = GENL_ADMIN_PERM, | |
11385 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11386 | NL80211_FLAG_NEED_RTNL, | |
11387 | }, | |
5de17984 AS |
11388 | { |
11389 | .cmd = NL80211_CMD_CRIT_PROTOCOL_START, | |
11390 | .doit = nl80211_crit_protocol_start, | |
11391 | .policy = nl80211_policy, | |
11392 | .flags = GENL_ADMIN_PERM, | |
11393 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
11394 | NL80211_FLAG_NEED_RTNL, | |
11395 | }, | |
11396 | { | |
11397 | .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP, | |
11398 | .doit = nl80211_crit_protocol_stop, | |
11399 | .policy = nl80211_policy, | |
11400 | .flags = GENL_ADMIN_PERM, | |
11401 | .internal_flags = NL80211_FLAG_NEED_WDEV_UP | | |
11402 | NL80211_FLAG_NEED_RTNL, | |
be29b99a AK |
11403 | }, |
11404 | { | |
11405 | .cmd = NL80211_CMD_GET_COALESCE, | |
11406 | .doit = nl80211_get_coalesce, | |
11407 | .policy = nl80211_policy, | |
11408 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11409 | NL80211_FLAG_NEED_RTNL, | |
11410 | }, | |
11411 | { | |
11412 | .cmd = NL80211_CMD_SET_COALESCE, | |
11413 | .doit = nl80211_set_coalesce, | |
11414 | .policy = nl80211_policy, | |
11415 | .flags = GENL_ADMIN_PERM, | |
11416 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11417 | NL80211_FLAG_NEED_RTNL, | |
16ef1fe2 SW |
11418 | }, |
11419 | { | |
11420 | .cmd = NL80211_CMD_CHANNEL_SWITCH, | |
11421 | .doit = nl80211_channel_switch, | |
11422 | .policy = nl80211_policy, | |
11423 | .flags = GENL_ADMIN_PERM, | |
11424 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11425 | NL80211_FLAG_NEED_RTNL, | |
11426 | }, | |
ad7e718c JB |
11427 | { |
11428 | .cmd = NL80211_CMD_VENDOR, | |
11429 | .doit = nl80211_vendor_cmd, | |
7bdbe400 | 11430 | .dumpit = nl80211_vendor_cmd_dump, |
ad7e718c JB |
11431 | .policy = nl80211_policy, |
11432 | .flags = GENL_ADMIN_PERM, | |
11433 | .internal_flags = NL80211_FLAG_NEED_WIPHY | | |
11434 | NL80211_FLAG_NEED_RTNL, | |
11435 | }, | |
fa9ffc74 KP |
11436 | { |
11437 | .cmd = NL80211_CMD_SET_QOS_MAP, | |
11438 | .doit = nl80211_set_qos_map, | |
11439 | .policy = nl80211_policy, | |
11440 | .flags = GENL_ADMIN_PERM, | |
11441 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11442 | NL80211_FLAG_NEED_RTNL, | |
11443 | }, | |
960d01ac JB |
11444 | { |
11445 | .cmd = NL80211_CMD_ADD_TX_TS, | |
11446 | .doit = nl80211_add_tx_ts, | |
11447 | .policy = nl80211_policy, | |
11448 | .flags = GENL_ADMIN_PERM, | |
11449 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11450 | NL80211_FLAG_NEED_RTNL, | |
11451 | }, | |
11452 | { | |
11453 | .cmd = NL80211_CMD_DEL_TX_TS, | |
11454 | .doit = nl80211_del_tx_ts, | |
11455 | .policy = nl80211_policy, | |
11456 | .flags = GENL_ADMIN_PERM, | |
11457 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11458 | NL80211_FLAG_NEED_RTNL, | |
11459 | }, | |
1057d35e AN |
11460 | { |
11461 | .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH, | |
11462 | .doit = nl80211_tdls_channel_switch, | |
11463 | .policy = nl80211_policy, | |
11464 | .flags = GENL_ADMIN_PERM, | |
11465 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11466 | NL80211_FLAG_NEED_RTNL, | |
11467 | }, | |
11468 | { | |
11469 | .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH, | |
11470 | .doit = nl80211_tdls_cancel_channel_switch, | |
11471 | .policy = nl80211_policy, | |
11472 | .flags = GENL_ADMIN_PERM, | |
11473 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
11474 | NL80211_FLAG_NEED_RTNL, | |
11475 | }, | |
55682965 | 11476 | }; |
9588bbd5 | 11477 | |
55682965 JB |
11478 | /* notification functions */ |
11479 | ||
3bb20556 JB |
11480 | void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev, |
11481 | enum nl80211_commands cmd) | |
55682965 JB |
11482 | { |
11483 | struct sk_buff *msg; | |
86e8cf98 | 11484 | struct nl80211_dump_wiphy_state state = {}; |
55682965 | 11485 | |
3bb20556 JB |
11486 | WARN_ON(cmd != NL80211_CMD_NEW_WIPHY && |
11487 | cmd != NL80211_CMD_DEL_WIPHY); | |
11488 | ||
fd2120ca | 11489 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
11490 | if (!msg) |
11491 | return; | |
11492 | ||
3bb20556 | 11493 | if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) { |
55682965 JB |
11494 | nlmsg_free(msg); |
11495 | return; | |
11496 | } | |
11497 | ||
68eb5503 | 11498 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11499 | NL80211_MCGRP_CONFIG, GFP_KERNEL); |
55682965 JB |
11500 | } |
11501 | ||
362a415d JB |
11502 | static int nl80211_add_scan_req(struct sk_buff *msg, |
11503 | struct cfg80211_registered_device *rdev) | |
11504 | { | |
11505 | struct cfg80211_scan_request *req = rdev->scan_req; | |
11506 | struct nlattr *nest; | |
11507 | int i; | |
11508 | ||
11509 | if (WARN_ON(!req)) | |
11510 | return 0; | |
11511 | ||
11512 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
11513 | if (!nest) | |
11514 | goto nla_put_failure; | |
9360ffd1 DM |
11515 | for (i = 0; i < req->n_ssids; i++) { |
11516 | if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid)) | |
11517 | goto nla_put_failure; | |
11518 | } | |
362a415d JB |
11519 | nla_nest_end(msg, nest); |
11520 | ||
11521 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
11522 | if (!nest) | |
11523 | goto nla_put_failure; | |
9360ffd1 DM |
11524 | for (i = 0; i < req->n_channels; i++) { |
11525 | if (nla_put_u32(msg, i, req->channels[i]->center_freq)) | |
11526 | goto nla_put_failure; | |
11527 | } | |
362a415d JB |
11528 | nla_nest_end(msg, nest); |
11529 | ||
9360ffd1 DM |
11530 | if (req->ie && |
11531 | nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie)) | |
11532 | goto nla_put_failure; | |
362a415d | 11533 | |
ae917c9f JB |
11534 | if (req->flags && |
11535 | nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags)) | |
11536 | goto nla_put_failure; | |
ed473771 | 11537 | |
362a415d JB |
11538 | return 0; |
11539 | nla_put_failure: | |
11540 | return -ENOBUFS; | |
11541 | } | |
11542 | ||
a538e2d5 JB |
11543 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
11544 | struct cfg80211_registered_device *rdev, | |
fd014284 | 11545 | struct wireless_dev *wdev, |
15e47304 | 11546 | u32 portid, u32 seq, int flags, |
a538e2d5 | 11547 | u32 cmd) |
2a519311 JB |
11548 | { |
11549 | void *hdr; | |
11550 | ||
15e47304 | 11551 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
2a519311 JB |
11552 | if (!hdr) |
11553 | return -1; | |
11554 | ||
9360ffd1 | 11555 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
fd014284 JB |
11556 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
11557 | wdev->netdev->ifindex)) || | |
11558 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
9360ffd1 | 11559 | goto nla_put_failure; |
2a519311 | 11560 | |
362a415d JB |
11561 | /* ignore errors and send incomplete event anyway */ |
11562 | nl80211_add_scan_req(msg, rdev); | |
2a519311 | 11563 | |
053c095a JB |
11564 | genlmsg_end(msg, hdr); |
11565 | return 0; | |
2a519311 JB |
11566 | |
11567 | nla_put_failure: | |
11568 | genlmsg_cancel(msg, hdr); | |
11569 | return -EMSGSIZE; | |
11570 | } | |
11571 | ||
807f8a8c LC |
11572 | static int |
11573 | nl80211_send_sched_scan_msg(struct sk_buff *msg, | |
11574 | struct cfg80211_registered_device *rdev, | |
11575 | struct net_device *netdev, | |
15e47304 | 11576 | u32 portid, u32 seq, int flags, u32 cmd) |
807f8a8c LC |
11577 | { |
11578 | void *hdr; | |
11579 | ||
15e47304 | 11580 | hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); |
807f8a8c LC |
11581 | if (!hdr) |
11582 | return -1; | |
11583 | ||
9360ffd1 DM |
11584 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11585 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
11586 | goto nla_put_failure; | |
807f8a8c | 11587 | |
053c095a JB |
11588 | genlmsg_end(msg, hdr); |
11589 | return 0; | |
807f8a8c LC |
11590 | |
11591 | nla_put_failure: | |
11592 | genlmsg_cancel(msg, hdr); | |
11593 | return -EMSGSIZE; | |
11594 | } | |
11595 | ||
a538e2d5 | 11596 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
fd014284 | 11597 | struct wireless_dev *wdev) |
a538e2d5 JB |
11598 | { |
11599 | struct sk_buff *msg; | |
11600 | ||
58050fce | 11601 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
a538e2d5 JB |
11602 | if (!msg) |
11603 | return; | |
11604 | ||
fd014284 | 11605 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
a538e2d5 JB |
11606 | NL80211_CMD_TRIGGER_SCAN) < 0) { |
11607 | nlmsg_free(msg); | |
11608 | return; | |
11609 | } | |
11610 | ||
68eb5503 | 11611 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11612 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
a538e2d5 JB |
11613 | } |
11614 | ||
f9d15d16 JB |
11615 | struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev, |
11616 | struct wireless_dev *wdev, bool aborted) | |
2a519311 JB |
11617 | { |
11618 | struct sk_buff *msg; | |
11619 | ||
fd2120ca | 11620 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 | 11621 | if (!msg) |
f9d15d16 | 11622 | return NULL; |
2a519311 | 11623 | |
fd014284 | 11624 | if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0, |
f9d15d16 JB |
11625 | aborted ? NL80211_CMD_SCAN_ABORTED : |
11626 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 | 11627 | nlmsg_free(msg); |
f9d15d16 | 11628 | return NULL; |
2a519311 JB |
11629 | } |
11630 | ||
f9d15d16 | 11631 | return msg; |
2a519311 JB |
11632 | } |
11633 | ||
f9d15d16 JB |
11634 | void nl80211_send_scan_result(struct cfg80211_registered_device *rdev, |
11635 | struct sk_buff *msg) | |
2a519311 | 11636 | { |
2a519311 JB |
11637 | if (!msg) |
11638 | return; | |
11639 | ||
68eb5503 | 11640 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11641 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
2a519311 JB |
11642 | } |
11643 | ||
807f8a8c LC |
11644 | void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev, |
11645 | struct net_device *netdev) | |
11646 | { | |
11647 | struct sk_buff *msg; | |
11648 | ||
11649 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11650 | if (!msg) | |
11651 | return; | |
11652 | ||
11653 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
11654 | NL80211_CMD_SCHED_SCAN_RESULTS) < 0) { | |
11655 | nlmsg_free(msg); | |
11656 | return; | |
11657 | } | |
11658 | ||
68eb5503 | 11659 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11660 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
807f8a8c LC |
11661 | } |
11662 | ||
11663 | void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev, | |
11664 | struct net_device *netdev, u32 cmd) | |
11665 | { | |
11666 | struct sk_buff *msg; | |
11667 | ||
58050fce | 11668 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
807f8a8c LC |
11669 | if (!msg) |
11670 | return; | |
11671 | ||
11672 | if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) { | |
11673 | nlmsg_free(msg); | |
11674 | return; | |
11675 | } | |
11676 | ||
68eb5503 | 11677 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11678 | NL80211_MCGRP_SCAN, GFP_KERNEL); |
807f8a8c LC |
11679 | } |
11680 | ||
b0d7aa59 JD |
11681 | static bool nl80211_reg_change_event_fill(struct sk_buff *msg, |
11682 | struct regulatory_request *request) | |
73d54c9e | 11683 | { |
73d54c9e | 11684 | /* Userspace can always count this one always being set */ |
9360ffd1 DM |
11685 | if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator)) |
11686 | goto nla_put_failure; | |
11687 | ||
11688 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') { | |
11689 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11690 | NL80211_REGDOM_TYPE_WORLD)) | |
11691 | goto nla_put_failure; | |
11692 | } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') { | |
11693 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11694 | NL80211_REGDOM_TYPE_CUSTOM_WORLD)) | |
11695 | goto nla_put_failure; | |
11696 | } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
11697 | request->intersect) { | |
11698 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11699 | NL80211_REGDOM_TYPE_INTERSECTION)) | |
11700 | goto nla_put_failure; | |
11701 | } else { | |
11702 | if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE, | |
11703 | NL80211_REGDOM_TYPE_COUNTRY) || | |
11704 | nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, | |
11705 | request->alpha2)) | |
11706 | goto nla_put_failure; | |
11707 | } | |
11708 | ||
ad30ca2c AN |
11709 | if (request->wiphy_idx != WIPHY_IDX_INVALID) { |
11710 | struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx); | |
11711 | ||
11712 | if (wiphy && | |
11713 | nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx)) | |
11714 | goto nla_put_failure; | |
1bdd716c AN |
11715 | |
11716 | if (wiphy && | |
11717 | wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED && | |
11718 | nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG)) | |
11719 | goto nla_put_failure; | |
ad30ca2c | 11720 | } |
73d54c9e | 11721 | |
b0d7aa59 JD |
11722 | return true; |
11723 | ||
11724 | nla_put_failure: | |
11725 | return false; | |
11726 | } | |
11727 | ||
11728 | /* | |
11729 | * This can happen on global regulatory changes or device specific settings | |
11730 | * based on custom regulatory domains. | |
11731 | */ | |
11732 | void nl80211_common_reg_change_event(enum nl80211_commands cmd_id, | |
11733 | struct regulatory_request *request) | |
11734 | { | |
11735 | struct sk_buff *msg; | |
11736 | void *hdr; | |
11737 | ||
11738 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
11739 | if (!msg) | |
11740 | return; | |
11741 | ||
11742 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id); | |
11743 | if (!hdr) { | |
11744 | nlmsg_free(msg); | |
11745 | return; | |
11746 | } | |
11747 | ||
11748 | if (nl80211_reg_change_event_fill(msg, request) == false) | |
11749 | goto nla_put_failure; | |
11750 | ||
3b7b72ee | 11751 | genlmsg_end(msg, hdr); |
73d54c9e | 11752 | |
bc43b28c | 11753 | rcu_read_lock(); |
68eb5503 | 11754 | genlmsg_multicast_allns(&nl80211_fam, msg, 0, |
2a94fe48 | 11755 | NL80211_MCGRP_REGULATORY, GFP_ATOMIC); |
bc43b28c | 11756 | rcu_read_unlock(); |
73d54c9e LR |
11757 | |
11758 | return; | |
11759 | ||
11760 | nla_put_failure: | |
11761 | genlmsg_cancel(msg, hdr); | |
11762 | nlmsg_free(msg); | |
11763 | } | |
11764 | ||
6039f6d2 JM |
11765 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
11766 | struct net_device *netdev, | |
11767 | const u8 *buf, size_t len, | |
b0b6aa2c EP |
11768 | enum nl80211_commands cmd, gfp_t gfp, |
11769 | int uapsd_queues) | |
6039f6d2 JM |
11770 | { |
11771 | struct sk_buff *msg; | |
11772 | void *hdr; | |
11773 | ||
e6d6e342 | 11774 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
11775 | if (!msg) |
11776 | return; | |
11777 | ||
11778 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
11779 | if (!hdr) { | |
11780 | nlmsg_free(msg); | |
11781 | return; | |
11782 | } | |
11783 | ||
9360ffd1 DM |
11784 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11785 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11786 | nla_put(msg, NL80211_ATTR_FRAME, len, buf)) | |
11787 | goto nla_put_failure; | |
6039f6d2 | 11788 | |
b0b6aa2c EP |
11789 | if (uapsd_queues >= 0) { |
11790 | struct nlattr *nla_wmm = | |
11791 | nla_nest_start(msg, NL80211_ATTR_STA_WME); | |
11792 | if (!nla_wmm) | |
11793 | goto nla_put_failure; | |
11794 | ||
11795 | if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES, | |
11796 | uapsd_queues)) | |
11797 | goto nla_put_failure; | |
11798 | ||
11799 | nla_nest_end(msg, nla_wmm); | |
11800 | } | |
11801 | ||
3b7b72ee | 11802 | genlmsg_end(msg, hdr); |
6039f6d2 | 11803 | |
68eb5503 | 11804 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11805 | NL80211_MCGRP_MLME, gfp); |
6039f6d2 JM |
11806 | return; |
11807 | ||
11808 | nla_put_failure: | |
11809 | genlmsg_cancel(msg, hdr); | |
11810 | nlmsg_free(msg); | |
11811 | } | |
11812 | ||
11813 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
11814 | struct net_device *netdev, const u8 *buf, |
11815 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
11816 | { |
11817 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
b0b6aa2c | 11818 | NL80211_CMD_AUTHENTICATE, gfp, -1); |
6039f6d2 JM |
11819 | } |
11820 | ||
11821 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
11822 | struct net_device *netdev, const u8 *buf, | |
b0b6aa2c | 11823 | size_t len, gfp_t gfp, int uapsd_queues) |
6039f6d2 | 11824 | { |
e6d6e342 | 11825 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
b0b6aa2c | 11826 | NL80211_CMD_ASSOCIATE, gfp, uapsd_queues); |
6039f6d2 JM |
11827 | } |
11828 | ||
53b46b84 | 11829 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
11830 | struct net_device *netdev, const u8 *buf, |
11831 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
11832 | { |
11833 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
b0b6aa2c | 11834 | NL80211_CMD_DEAUTHENTICATE, gfp, -1); |
6039f6d2 JM |
11835 | } |
11836 | ||
53b46b84 JM |
11837 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
11838 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 11839 | size_t len, gfp_t gfp) |
6039f6d2 JM |
11840 | { |
11841 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
b0b6aa2c | 11842 | NL80211_CMD_DISASSOCIATE, gfp, -1); |
6039f6d2 JM |
11843 | } |
11844 | ||
6ff57cf8 JB |
11845 | void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf, |
11846 | size_t len) | |
cf4e594e | 11847 | { |
947add36 JB |
11848 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
11849 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 11850 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
6ff57cf8 JB |
11851 | const struct ieee80211_mgmt *mgmt = (void *)buf; |
11852 | u32 cmd; | |
947add36 | 11853 | |
6ff57cf8 JB |
11854 | if (WARN_ON(len < 2)) |
11855 | return; | |
cf4e594e | 11856 | |
6ff57cf8 JB |
11857 | if (ieee80211_is_deauth(mgmt->frame_control)) |
11858 | cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE; | |
11859 | else | |
11860 | cmd = NL80211_CMD_UNPROT_DISASSOCIATE; | |
947add36 | 11861 | |
6ff57cf8 | 11862 | trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len); |
b0b6aa2c | 11863 | nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1); |
cf4e594e | 11864 | } |
6ff57cf8 | 11865 | EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt); |
cf4e594e | 11866 | |
1b06bb40 LR |
11867 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
11868 | struct net_device *netdev, int cmd, | |
e6d6e342 | 11869 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
11870 | { |
11871 | struct sk_buff *msg; | |
11872 | void *hdr; | |
11873 | ||
e6d6e342 | 11874 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
11875 | if (!msg) |
11876 | return; | |
11877 | ||
11878 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
11879 | if (!hdr) { | |
11880 | nlmsg_free(msg); | |
11881 | return; | |
11882 | } | |
11883 | ||
9360ffd1 DM |
11884 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11885 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11886 | nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) || | |
11887 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
11888 | goto nla_put_failure; | |
1965c853 | 11889 | |
3b7b72ee | 11890 | genlmsg_end(msg, hdr); |
1965c853 | 11891 | |
68eb5503 | 11892 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11893 | NL80211_MCGRP_MLME, gfp); |
1965c853 JM |
11894 | return; |
11895 | ||
11896 | nla_put_failure: | |
11897 | genlmsg_cancel(msg, hdr); | |
11898 | nlmsg_free(msg); | |
11899 | } | |
11900 | ||
11901 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
11902 | struct net_device *netdev, const u8 *addr, |
11903 | gfp_t gfp) | |
1965c853 JM |
11904 | { |
11905 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 11906 | addr, gfp); |
1965c853 JM |
11907 | } |
11908 | ||
11909 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
11910 | struct net_device *netdev, const u8 *addr, |
11911 | gfp_t gfp) | |
1965c853 | 11912 | { |
e6d6e342 JB |
11913 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
11914 | addr, gfp); | |
1965c853 JM |
11915 | } |
11916 | ||
b23aa676 SO |
11917 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
11918 | struct net_device *netdev, const u8 *bssid, | |
11919 | const u8 *req_ie, size_t req_ie_len, | |
11920 | const u8 *resp_ie, size_t resp_ie_len, | |
11921 | u16 status, gfp_t gfp) | |
11922 | { | |
11923 | struct sk_buff *msg; | |
11924 | void *hdr; | |
11925 | ||
58050fce | 11926 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
11927 | if (!msg) |
11928 | return; | |
11929 | ||
11930 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
11931 | if (!hdr) { | |
11932 | nlmsg_free(msg); | |
11933 | return; | |
11934 | } | |
11935 | ||
9360ffd1 DM |
11936 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11937 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11938 | (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) || | |
11939 | nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) || | |
11940 | (req_ie && | |
11941 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
11942 | (resp_ie && | |
11943 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
11944 | goto nla_put_failure; | |
b23aa676 | 11945 | |
3b7b72ee | 11946 | genlmsg_end(msg, hdr); |
b23aa676 | 11947 | |
68eb5503 | 11948 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11949 | NL80211_MCGRP_MLME, gfp); |
b23aa676 SO |
11950 | return; |
11951 | ||
11952 | nla_put_failure: | |
11953 | genlmsg_cancel(msg, hdr); | |
11954 | nlmsg_free(msg); | |
11955 | ||
11956 | } | |
11957 | ||
11958 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
11959 | struct net_device *netdev, const u8 *bssid, | |
11960 | const u8 *req_ie, size_t req_ie_len, | |
11961 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
11962 | { | |
11963 | struct sk_buff *msg; | |
11964 | void *hdr; | |
11965 | ||
58050fce | 11966 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
b23aa676 SO |
11967 | if (!msg) |
11968 | return; | |
11969 | ||
11970 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
11971 | if (!hdr) { | |
11972 | nlmsg_free(msg); | |
11973 | return; | |
11974 | } | |
11975 | ||
9360ffd1 DM |
11976 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
11977 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
11978 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) || | |
11979 | (req_ie && | |
11980 | nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) || | |
11981 | (resp_ie && | |
11982 | nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie))) | |
11983 | goto nla_put_failure; | |
b23aa676 | 11984 | |
3b7b72ee | 11985 | genlmsg_end(msg, hdr); |
b23aa676 | 11986 | |
68eb5503 | 11987 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 11988 | NL80211_MCGRP_MLME, gfp); |
b23aa676 SO |
11989 | return; |
11990 | ||
11991 | nla_put_failure: | |
11992 | genlmsg_cancel(msg, hdr); | |
11993 | nlmsg_free(msg); | |
11994 | ||
11995 | } | |
11996 | ||
11997 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
11998 | struct net_device *netdev, u16 reason, | |
667503dd | 11999 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
12000 | { |
12001 | struct sk_buff *msg; | |
12002 | void *hdr; | |
12003 | ||
58050fce | 12004 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
b23aa676 SO |
12005 | if (!msg) |
12006 | return; | |
12007 | ||
12008 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
12009 | if (!hdr) { | |
12010 | nlmsg_free(msg); | |
12011 | return; | |
12012 | } | |
12013 | ||
9360ffd1 DM |
12014 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12015 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12016 | (from_ap && reason && | |
12017 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) || | |
12018 | (from_ap && | |
12019 | nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) || | |
12020 | (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie))) | |
12021 | goto nla_put_failure; | |
b23aa676 | 12022 | |
3b7b72ee | 12023 | genlmsg_end(msg, hdr); |
b23aa676 | 12024 | |
68eb5503 | 12025 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12026 | NL80211_MCGRP_MLME, GFP_KERNEL); |
b23aa676 SO |
12027 | return; |
12028 | ||
12029 | nla_put_failure: | |
12030 | genlmsg_cancel(msg, hdr); | |
12031 | nlmsg_free(msg); | |
12032 | ||
12033 | } | |
12034 | ||
04a773ad JB |
12035 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
12036 | struct net_device *netdev, const u8 *bssid, | |
12037 | gfp_t gfp) | |
12038 | { | |
12039 | struct sk_buff *msg; | |
12040 | void *hdr; | |
12041 | ||
fd2120ca | 12042 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
12043 | if (!msg) |
12044 | return; | |
12045 | ||
12046 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
12047 | if (!hdr) { | |
12048 | nlmsg_free(msg); | |
12049 | return; | |
12050 | } | |
12051 | ||
9360ffd1 DM |
12052 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12053 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12054 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
12055 | goto nla_put_failure; | |
04a773ad | 12056 | |
3b7b72ee | 12057 | genlmsg_end(msg, hdr); |
04a773ad | 12058 | |
68eb5503 | 12059 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12060 | NL80211_MCGRP_MLME, gfp); |
04a773ad JB |
12061 | return; |
12062 | ||
12063 | nla_put_failure: | |
12064 | genlmsg_cancel(msg, hdr); | |
12065 | nlmsg_free(msg); | |
12066 | } | |
12067 | ||
947add36 JB |
12068 | void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr, |
12069 | const u8* ie, u8 ie_len, gfp_t gfp) | |
c93b5e71 | 12070 | { |
947add36 | 12071 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
f26cbf40 | 12072 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
c93b5e71 JC |
12073 | struct sk_buff *msg; |
12074 | void *hdr; | |
12075 | ||
947add36 JB |
12076 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT)) |
12077 | return; | |
12078 | ||
12079 | trace_cfg80211_notify_new_peer_candidate(dev, addr); | |
12080 | ||
c93b5e71 JC |
12081 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
12082 | if (!msg) | |
12083 | return; | |
12084 | ||
12085 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE); | |
12086 | if (!hdr) { | |
12087 | nlmsg_free(msg); | |
12088 | return; | |
12089 | } | |
12090 | ||
9360ffd1 | 12091 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
947add36 JB |
12092 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || |
12093 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
9360ffd1 DM |
12094 | (ie_len && ie && |
12095 | nla_put(msg, NL80211_ATTR_IE, ie_len , ie))) | |
12096 | goto nla_put_failure; | |
c93b5e71 | 12097 | |
3b7b72ee | 12098 | genlmsg_end(msg, hdr); |
c93b5e71 | 12099 | |
68eb5503 | 12100 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12101 | NL80211_MCGRP_MLME, gfp); |
c93b5e71 JC |
12102 | return; |
12103 | ||
12104 | nla_put_failure: | |
12105 | genlmsg_cancel(msg, hdr); | |
12106 | nlmsg_free(msg); | |
12107 | } | |
947add36 | 12108 | EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate); |
c93b5e71 | 12109 | |
a3b8b056 JM |
12110 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
12111 | struct net_device *netdev, const u8 *addr, | |
12112 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 12113 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
12114 | { |
12115 | struct sk_buff *msg; | |
12116 | void *hdr; | |
12117 | ||
e6d6e342 | 12118 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
12119 | if (!msg) |
12120 | return; | |
12121 | ||
12122 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
12123 | if (!hdr) { | |
12124 | nlmsg_free(msg); | |
12125 | return; | |
12126 | } | |
12127 | ||
9360ffd1 DM |
12128 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12129 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12130 | (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || | |
12131 | nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || | |
12132 | (key_id != -1 && | |
12133 | nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || | |
12134 | (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) | |
12135 | goto nla_put_failure; | |
a3b8b056 | 12136 | |
3b7b72ee | 12137 | genlmsg_end(msg, hdr); |
a3b8b056 | 12138 | |
68eb5503 | 12139 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12140 | NL80211_MCGRP_MLME, gfp); |
a3b8b056 JM |
12141 | return; |
12142 | ||
12143 | nla_put_failure: | |
12144 | genlmsg_cancel(msg, hdr); | |
12145 | nlmsg_free(msg); | |
12146 | } | |
12147 | ||
6bad8766 LR |
12148 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
12149 | struct ieee80211_channel *channel_before, | |
12150 | struct ieee80211_channel *channel_after) | |
12151 | { | |
12152 | struct sk_buff *msg; | |
12153 | void *hdr; | |
12154 | struct nlattr *nl_freq; | |
12155 | ||
fd2120ca | 12156 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
12157 | if (!msg) |
12158 | return; | |
12159 | ||
12160 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
12161 | if (!hdr) { | |
12162 | nlmsg_free(msg); | |
12163 | return; | |
12164 | } | |
12165 | ||
12166 | /* | |
12167 | * Since we are applying the beacon hint to a wiphy we know its | |
12168 | * wiphy_idx is valid | |
12169 | */ | |
9360ffd1 DM |
12170 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) |
12171 | goto nla_put_failure; | |
6bad8766 LR |
12172 | |
12173 | /* Before */ | |
12174 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
12175 | if (!nl_freq) | |
12176 | goto nla_put_failure; | |
cdc89b97 | 12177 | if (nl80211_msg_put_channel(msg, channel_before, false)) |
6bad8766 LR |
12178 | goto nla_put_failure; |
12179 | nla_nest_end(msg, nl_freq); | |
12180 | ||
12181 | /* After */ | |
12182 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
12183 | if (!nl_freq) | |
12184 | goto nla_put_failure; | |
cdc89b97 | 12185 | if (nl80211_msg_put_channel(msg, channel_after, false)) |
6bad8766 LR |
12186 | goto nla_put_failure; |
12187 | nla_nest_end(msg, nl_freq); | |
12188 | ||
3b7b72ee | 12189 | genlmsg_end(msg, hdr); |
6bad8766 | 12190 | |
463d0183 | 12191 | rcu_read_lock(); |
68eb5503 | 12192 | genlmsg_multicast_allns(&nl80211_fam, msg, 0, |
2a94fe48 | 12193 | NL80211_MCGRP_REGULATORY, GFP_ATOMIC); |
463d0183 | 12194 | rcu_read_unlock(); |
6bad8766 LR |
12195 | |
12196 | return; | |
12197 | ||
12198 | nla_put_failure: | |
12199 | genlmsg_cancel(msg, hdr); | |
12200 | nlmsg_free(msg); | |
12201 | } | |
12202 | ||
9588bbd5 JM |
12203 | static void nl80211_send_remain_on_chan_event( |
12204 | int cmd, struct cfg80211_registered_device *rdev, | |
71bbc994 | 12205 | struct wireless_dev *wdev, u64 cookie, |
9588bbd5 | 12206 | struct ieee80211_channel *chan, |
9588bbd5 JM |
12207 | unsigned int duration, gfp_t gfp) |
12208 | { | |
12209 | struct sk_buff *msg; | |
12210 | void *hdr; | |
12211 | ||
12212 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12213 | if (!msg) | |
12214 | return; | |
12215 | ||
12216 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
12217 | if (!hdr) { | |
12218 | nlmsg_free(msg); | |
12219 | return; | |
12220 | } | |
12221 | ||
9360ffd1 | 12222 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
12223 | (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
12224 | wdev->netdev->ifindex)) || | |
00f53350 | 12225 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 | 12226 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) || |
42d97a59 JB |
12227 | nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, |
12228 | NL80211_CHAN_NO_HT) || | |
9360ffd1 DM |
12229 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie)) |
12230 | goto nla_put_failure; | |
9588bbd5 | 12231 | |
9360ffd1 DM |
12232 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL && |
12233 | nla_put_u32(msg, NL80211_ATTR_DURATION, duration)) | |
12234 | goto nla_put_failure; | |
9588bbd5 | 12235 | |
3b7b72ee | 12236 | genlmsg_end(msg, hdr); |
9588bbd5 | 12237 | |
68eb5503 | 12238 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12239 | NL80211_MCGRP_MLME, gfp); |
9588bbd5 JM |
12240 | return; |
12241 | ||
12242 | nla_put_failure: | |
12243 | genlmsg_cancel(msg, hdr); | |
12244 | nlmsg_free(msg); | |
12245 | } | |
12246 | ||
947add36 JB |
12247 | void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, |
12248 | struct ieee80211_channel *chan, | |
12249 | unsigned int duration, gfp_t gfp) | |
9588bbd5 | 12250 | { |
947add36 | 12251 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 12252 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
12253 | |
12254 | trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration); | |
9588bbd5 | 12255 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, |
71bbc994 | 12256 | rdev, wdev, cookie, chan, |
42d97a59 | 12257 | duration, gfp); |
9588bbd5 | 12258 | } |
947add36 | 12259 | EXPORT_SYMBOL(cfg80211_ready_on_channel); |
9588bbd5 | 12260 | |
947add36 JB |
12261 | void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, |
12262 | struct ieee80211_channel *chan, | |
12263 | gfp_t gfp) | |
9588bbd5 | 12264 | { |
947add36 | 12265 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 12266 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
12267 | |
12268 | trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan); | |
9588bbd5 | 12269 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, |
42d97a59 | 12270 | rdev, wdev, cookie, chan, 0, gfp); |
9588bbd5 | 12271 | } |
947add36 | 12272 | EXPORT_SYMBOL(cfg80211_remain_on_channel_expired); |
9588bbd5 | 12273 | |
947add36 JB |
12274 | void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, |
12275 | struct station_info *sinfo, gfp_t gfp) | |
98b62183 | 12276 | { |
947add36 | 12277 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
f26cbf40 | 12278 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
98b62183 JB |
12279 | struct sk_buff *msg; |
12280 | ||
947add36 JB |
12281 | trace_cfg80211_new_sta(dev, mac_addr, sinfo); |
12282 | ||
58050fce | 12283 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
98b62183 JB |
12284 | if (!msg) |
12285 | return; | |
12286 | ||
cf5ead82 | 12287 | if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0, |
66266b3a | 12288 | rdev, dev, mac_addr, sinfo) < 0) { |
98b62183 JB |
12289 | nlmsg_free(msg); |
12290 | return; | |
12291 | } | |
12292 | ||
68eb5503 | 12293 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12294 | NL80211_MCGRP_MLME, gfp); |
98b62183 | 12295 | } |
947add36 | 12296 | EXPORT_SYMBOL(cfg80211_new_sta); |
98b62183 | 12297 | |
cf5ead82 JB |
12298 | void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr, |
12299 | struct station_info *sinfo, gfp_t gfp) | |
ec15e68b | 12300 | { |
947add36 | 12301 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
f26cbf40 | 12302 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
ec15e68b | 12303 | struct sk_buff *msg; |
cf5ead82 JB |
12304 | struct station_info empty_sinfo = {}; |
12305 | ||
12306 | if (!sinfo) | |
12307 | sinfo = &empty_sinfo; | |
ec15e68b | 12308 | |
947add36 JB |
12309 | trace_cfg80211_del_sta(dev, mac_addr); |
12310 | ||
58050fce | 12311 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
ec15e68b JM |
12312 | if (!msg) |
12313 | return; | |
12314 | ||
cf5ead82 | 12315 | if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0, |
57007121 | 12316 | rdev, dev, mac_addr, sinfo) < 0) { |
ec15e68b JM |
12317 | nlmsg_free(msg); |
12318 | return; | |
12319 | } | |
12320 | ||
68eb5503 | 12321 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12322 | NL80211_MCGRP_MLME, gfp); |
ec15e68b | 12323 | } |
cf5ead82 | 12324 | EXPORT_SYMBOL(cfg80211_del_sta_sinfo); |
ec15e68b | 12325 | |
947add36 JB |
12326 | void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, |
12327 | enum nl80211_connect_failed_reason reason, | |
12328 | gfp_t gfp) | |
ed44a951 | 12329 | { |
947add36 | 12330 | struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; |
f26cbf40 | 12331 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
ed44a951 PP |
12332 | struct sk_buff *msg; |
12333 | void *hdr; | |
12334 | ||
12335 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
12336 | if (!msg) | |
12337 | return; | |
12338 | ||
12339 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED); | |
12340 | if (!hdr) { | |
12341 | nlmsg_free(msg); | |
12342 | return; | |
12343 | } | |
12344 | ||
12345 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
12346 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) || | |
12347 | nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason)) | |
12348 | goto nla_put_failure; | |
12349 | ||
12350 | genlmsg_end(msg, hdr); | |
12351 | ||
68eb5503 | 12352 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12353 | NL80211_MCGRP_MLME, gfp); |
ed44a951 PP |
12354 | return; |
12355 | ||
12356 | nla_put_failure: | |
12357 | genlmsg_cancel(msg, hdr); | |
12358 | nlmsg_free(msg); | |
12359 | } | |
947add36 | 12360 | EXPORT_SYMBOL(cfg80211_conn_failed); |
ed44a951 | 12361 | |
b92ab5d8 JB |
12362 | static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, |
12363 | const u8 *addr, gfp_t gfp) | |
28946da7 JB |
12364 | { |
12365 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 12366 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
28946da7 JB |
12367 | struct sk_buff *msg; |
12368 | void *hdr; | |
15e47304 | 12369 | u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid); |
28946da7 | 12370 | |
15e47304 | 12371 | if (!nlportid) |
28946da7 JB |
12372 | return false; |
12373 | ||
12374 | msg = nlmsg_new(100, gfp); | |
12375 | if (!msg) | |
12376 | return true; | |
12377 | ||
b92ab5d8 | 12378 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); |
28946da7 JB |
12379 | if (!hdr) { |
12380 | nlmsg_free(msg); | |
12381 | return true; | |
12382 | } | |
12383 | ||
9360ffd1 DM |
12384 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12385 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
12386 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) | |
12387 | goto nla_put_failure; | |
28946da7 | 12388 | |
9c90a9f6 | 12389 | genlmsg_end(msg, hdr); |
15e47304 | 12390 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
28946da7 JB |
12391 | return true; |
12392 | ||
12393 | nla_put_failure: | |
12394 | genlmsg_cancel(msg, hdr); | |
12395 | nlmsg_free(msg); | |
12396 | return true; | |
12397 | } | |
12398 | ||
947add36 JB |
12399 | bool cfg80211_rx_spurious_frame(struct net_device *dev, |
12400 | const u8 *addr, gfp_t gfp) | |
b92ab5d8 | 12401 | { |
947add36 JB |
12402 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
12403 | bool ret; | |
12404 | ||
12405 | trace_cfg80211_rx_spurious_frame(dev, addr); | |
12406 | ||
12407 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && | |
12408 | wdev->iftype != NL80211_IFTYPE_P2P_GO)) { | |
12409 | trace_cfg80211_return_bool(false); | |
12410 | return false; | |
12411 | } | |
12412 | ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME, | |
12413 | addr, gfp); | |
12414 | trace_cfg80211_return_bool(ret); | |
12415 | return ret; | |
b92ab5d8 | 12416 | } |
947add36 | 12417 | EXPORT_SYMBOL(cfg80211_rx_spurious_frame); |
b92ab5d8 | 12418 | |
947add36 JB |
12419 | bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev, |
12420 | const u8 *addr, gfp_t gfp) | |
b92ab5d8 | 12421 | { |
947add36 JB |
12422 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
12423 | bool ret; | |
12424 | ||
12425 | trace_cfg80211_rx_unexpected_4addr_frame(dev, addr); | |
12426 | ||
12427 | if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && | |
12428 | wdev->iftype != NL80211_IFTYPE_P2P_GO && | |
12429 | wdev->iftype != NL80211_IFTYPE_AP_VLAN)) { | |
12430 | trace_cfg80211_return_bool(false); | |
12431 | return false; | |
12432 | } | |
12433 | ret = __nl80211_unexpected_frame(dev, | |
12434 | NL80211_CMD_UNEXPECTED_4ADDR_FRAME, | |
12435 | addr, gfp); | |
12436 | trace_cfg80211_return_bool(ret); | |
12437 | return ret; | |
b92ab5d8 | 12438 | } |
947add36 | 12439 | EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame); |
b92ab5d8 | 12440 | |
2e161f78 | 12441 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
15e47304 | 12442 | struct wireless_dev *wdev, u32 nlportid, |
804483e9 | 12443 | int freq, int sig_dbm, |
19504cf5 | 12444 | const u8 *buf, size_t len, u32 flags, gfp_t gfp) |
026331c4 | 12445 | { |
71bbc994 | 12446 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
12447 | struct sk_buff *msg; |
12448 | void *hdr; | |
026331c4 JM |
12449 | |
12450 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12451 | if (!msg) | |
12452 | return -ENOMEM; | |
12453 | ||
2e161f78 | 12454 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
12455 | if (!hdr) { |
12456 | nlmsg_free(msg); | |
12457 | return -ENOMEM; | |
12458 | } | |
12459 | ||
9360ffd1 | 12460 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
12461 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
12462 | netdev->ifindex)) || | |
a838490b | 12463 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 DM |
12464 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) || |
12465 | (sig_dbm && | |
12466 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
19504cf5 VK |
12467 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
12468 | (flags && | |
12469 | nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags))) | |
9360ffd1 | 12470 | goto nla_put_failure; |
026331c4 | 12471 | |
3b7b72ee | 12472 | genlmsg_end(msg, hdr); |
026331c4 | 12473 | |
15e47304 | 12474 | return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); |
026331c4 JM |
12475 | |
12476 | nla_put_failure: | |
12477 | genlmsg_cancel(msg, hdr); | |
12478 | nlmsg_free(msg); | |
12479 | return -ENOBUFS; | |
12480 | } | |
12481 | ||
947add36 JB |
12482 | void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, |
12483 | const u8 *buf, size_t len, bool ack, gfp_t gfp) | |
026331c4 | 12484 | { |
947add36 | 12485 | struct wiphy *wiphy = wdev->wiphy; |
f26cbf40 | 12486 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
71bbc994 | 12487 | struct net_device *netdev = wdev->netdev; |
026331c4 JM |
12488 | struct sk_buff *msg; |
12489 | void *hdr; | |
12490 | ||
947add36 JB |
12491 | trace_cfg80211_mgmt_tx_status(wdev, cookie, ack); |
12492 | ||
026331c4 JM |
12493 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
12494 | if (!msg) | |
12495 | return; | |
12496 | ||
2e161f78 | 12497 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
12498 | if (!hdr) { |
12499 | nlmsg_free(msg); | |
12500 | return; | |
12501 | } | |
12502 | ||
9360ffd1 | 12503 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
71bbc994 JB |
12504 | (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, |
12505 | netdev->ifindex)) || | |
a838490b | 12506 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) || |
9360ffd1 DM |
12507 | nla_put(msg, NL80211_ATTR_FRAME, len, buf) || |
12508 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
12509 | (ack && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
12510 | goto nla_put_failure; | |
026331c4 | 12511 | |
3b7b72ee | 12512 | genlmsg_end(msg, hdr); |
026331c4 | 12513 | |
68eb5503 | 12514 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12515 | NL80211_MCGRP_MLME, gfp); |
026331c4 JM |
12516 | return; |
12517 | ||
12518 | nla_put_failure: | |
12519 | genlmsg_cancel(msg, hdr); | |
12520 | nlmsg_free(msg); | |
12521 | } | |
947add36 | 12522 | EXPORT_SYMBOL(cfg80211_mgmt_tx_status); |
026331c4 | 12523 | |
5b97f49d JB |
12524 | static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev, |
12525 | const char *mac, gfp_t gfp) | |
d6dc1a38 | 12526 | { |
947add36 | 12527 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
5b97f49d JB |
12528 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
12529 | struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12530 | void **cb; | |
947add36 | 12531 | |
d6dc1a38 | 12532 | if (!msg) |
5b97f49d | 12533 | return NULL; |
d6dc1a38 | 12534 | |
5b97f49d JB |
12535 | cb = (void **)msg->cb; |
12536 | ||
12537 | cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
12538 | if (!cb[0]) { | |
d6dc1a38 | 12539 | nlmsg_free(msg); |
5b97f49d | 12540 | return NULL; |
d6dc1a38 JO |
12541 | } |
12542 | ||
9360ffd1 | 12543 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
947add36 | 12544 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) |
9360ffd1 | 12545 | goto nla_put_failure; |
d6dc1a38 | 12546 | |
5b97f49d | 12547 | if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac)) |
d6dc1a38 JO |
12548 | goto nla_put_failure; |
12549 | ||
5b97f49d JB |
12550 | cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM); |
12551 | if (!cb[1]) | |
9360ffd1 | 12552 | goto nla_put_failure; |
d6dc1a38 | 12553 | |
5b97f49d | 12554 | cb[2] = rdev; |
d6dc1a38 | 12555 | |
5b97f49d JB |
12556 | return msg; |
12557 | nla_put_failure: | |
12558 | nlmsg_free(msg); | |
12559 | return NULL; | |
12560 | } | |
12561 | ||
12562 | static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp) | |
12563 | { | |
12564 | void **cb = (void **)msg->cb; | |
12565 | struct cfg80211_registered_device *rdev = cb[2]; | |
12566 | ||
12567 | nla_nest_end(msg, cb[1]); | |
12568 | genlmsg_end(msg, cb[0]); | |
12569 | ||
12570 | memset(msg->cb, 0, sizeof(msg->cb)); | |
d6dc1a38 | 12571 | |
68eb5503 | 12572 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12573 | NL80211_MCGRP_MLME, gfp); |
5b97f49d JB |
12574 | } |
12575 | ||
12576 | void cfg80211_cqm_rssi_notify(struct net_device *dev, | |
12577 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
12578 | gfp_t gfp) | |
12579 | { | |
12580 | struct sk_buff *msg; | |
12581 | ||
12582 | trace_cfg80211_cqm_rssi_notify(dev, rssi_event); | |
12583 | ||
98f03342 JB |
12584 | if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW && |
12585 | rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH)) | |
12586 | return; | |
12587 | ||
5b97f49d JB |
12588 | msg = cfg80211_prepare_cqm(dev, NULL, gfp); |
12589 | if (!msg) | |
12590 | return; | |
12591 | ||
12592 | if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
12593 | rssi_event)) | |
12594 | goto nla_put_failure; | |
12595 | ||
12596 | cfg80211_send_cqm(msg, gfp); | |
12597 | ||
d6dc1a38 JO |
12598 | return; |
12599 | ||
12600 | nla_put_failure: | |
d6dc1a38 JO |
12601 | nlmsg_free(msg); |
12602 | } | |
947add36 | 12603 | EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); |
d6dc1a38 | 12604 | |
5b97f49d JB |
12605 | void cfg80211_cqm_txe_notify(struct net_device *dev, |
12606 | const u8 *peer, u32 num_packets, | |
12607 | u32 rate, u32 intvl, gfp_t gfp) | |
12608 | { | |
12609 | struct sk_buff *msg; | |
12610 | ||
12611 | msg = cfg80211_prepare_cqm(dev, peer, gfp); | |
12612 | if (!msg) | |
12613 | return; | |
12614 | ||
12615 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) | |
12616 | goto nla_put_failure; | |
12617 | ||
12618 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) | |
12619 | goto nla_put_failure; | |
12620 | ||
12621 | if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) | |
12622 | goto nla_put_failure; | |
12623 | ||
12624 | cfg80211_send_cqm(msg, gfp); | |
12625 | return; | |
12626 | ||
12627 | nla_put_failure: | |
12628 | nlmsg_free(msg); | |
12629 | } | |
12630 | EXPORT_SYMBOL(cfg80211_cqm_txe_notify); | |
12631 | ||
12632 | void cfg80211_cqm_pktloss_notify(struct net_device *dev, | |
12633 | const u8 *peer, u32 num_packets, gfp_t gfp) | |
12634 | { | |
12635 | struct sk_buff *msg; | |
12636 | ||
12637 | trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets); | |
12638 | ||
12639 | msg = cfg80211_prepare_cqm(dev, peer, gfp); | |
12640 | if (!msg) | |
12641 | return; | |
12642 | ||
12643 | if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) | |
12644 | goto nla_put_failure; | |
12645 | ||
12646 | cfg80211_send_cqm(msg, gfp); | |
12647 | return; | |
12648 | ||
12649 | nla_put_failure: | |
12650 | nlmsg_free(msg); | |
12651 | } | |
12652 | EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); | |
12653 | ||
98f03342 JB |
12654 | void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp) |
12655 | { | |
12656 | struct sk_buff *msg; | |
12657 | ||
12658 | msg = cfg80211_prepare_cqm(dev, NULL, gfp); | |
12659 | if (!msg) | |
12660 | return; | |
12661 | ||
12662 | if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT)) | |
12663 | goto nla_put_failure; | |
12664 | ||
12665 | cfg80211_send_cqm(msg, gfp); | |
12666 | return; | |
12667 | ||
12668 | nla_put_failure: | |
12669 | nlmsg_free(msg); | |
12670 | } | |
12671 | EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify); | |
12672 | ||
947add36 JB |
12673 | static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, |
12674 | struct net_device *netdev, const u8 *bssid, | |
12675 | const u8 *replay_ctr, gfp_t gfp) | |
e5497d76 JB |
12676 | { |
12677 | struct sk_buff *msg; | |
12678 | struct nlattr *rekey_attr; | |
12679 | void *hdr; | |
12680 | ||
58050fce | 12681 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
e5497d76 JB |
12682 | if (!msg) |
12683 | return; | |
12684 | ||
12685 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD); | |
12686 | if (!hdr) { | |
12687 | nlmsg_free(msg); | |
12688 | return; | |
12689 | } | |
12690 | ||
9360ffd1 DM |
12691 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12692 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12693 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) | |
12694 | goto nla_put_failure; | |
e5497d76 JB |
12695 | |
12696 | rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA); | |
12697 | if (!rekey_attr) | |
12698 | goto nla_put_failure; | |
12699 | ||
9360ffd1 DM |
12700 | if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR, |
12701 | NL80211_REPLAY_CTR_LEN, replay_ctr)) | |
12702 | goto nla_put_failure; | |
e5497d76 JB |
12703 | |
12704 | nla_nest_end(msg, rekey_attr); | |
12705 | ||
3b7b72ee | 12706 | genlmsg_end(msg, hdr); |
e5497d76 | 12707 | |
68eb5503 | 12708 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12709 | NL80211_MCGRP_MLME, gfp); |
e5497d76 JB |
12710 | return; |
12711 | ||
12712 | nla_put_failure: | |
12713 | genlmsg_cancel(msg, hdr); | |
12714 | nlmsg_free(msg); | |
12715 | } | |
12716 | ||
947add36 JB |
12717 | void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, |
12718 | const u8 *replay_ctr, gfp_t gfp) | |
12719 | { | |
12720 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12721 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 12722 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
12723 | |
12724 | trace_cfg80211_gtk_rekey_notify(dev, bssid); | |
12725 | nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp); | |
12726 | } | |
12727 | EXPORT_SYMBOL(cfg80211_gtk_rekey_notify); | |
12728 | ||
12729 | static void | |
12730 | nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev, | |
12731 | struct net_device *netdev, int index, | |
12732 | const u8 *bssid, bool preauth, gfp_t gfp) | |
c9df56b4 JM |
12733 | { |
12734 | struct sk_buff *msg; | |
12735 | struct nlattr *attr; | |
12736 | void *hdr; | |
12737 | ||
58050fce | 12738 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
c9df56b4 JM |
12739 | if (!msg) |
12740 | return; | |
12741 | ||
12742 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE); | |
12743 | if (!hdr) { | |
12744 | nlmsg_free(msg); | |
12745 | return; | |
12746 | } | |
12747 | ||
9360ffd1 DM |
12748 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12749 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) | |
12750 | goto nla_put_failure; | |
c9df56b4 JM |
12751 | |
12752 | attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE); | |
12753 | if (!attr) | |
12754 | goto nla_put_failure; | |
12755 | ||
9360ffd1 DM |
12756 | if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) || |
12757 | nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) || | |
12758 | (preauth && | |
12759 | nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH))) | |
12760 | goto nla_put_failure; | |
c9df56b4 JM |
12761 | |
12762 | nla_nest_end(msg, attr); | |
12763 | ||
3b7b72ee | 12764 | genlmsg_end(msg, hdr); |
c9df56b4 | 12765 | |
68eb5503 | 12766 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12767 | NL80211_MCGRP_MLME, gfp); |
c9df56b4 JM |
12768 | return; |
12769 | ||
12770 | nla_put_failure: | |
12771 | genlmsg_cancel(msg, hdr); | |
12772 | nlmsg_free(msg); | |
12773 | } | |
12774 | ||
947add36 JB |
12775 | void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, |
12776 | const u8 *bssid, bool preauth, gfp_t gfp) | |
12777 | { | |
12778 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12779 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 12780 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 JB |
12781 | |
12782 | trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth); | |
12783 | nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp); | |
12784 | } | |
12785 | EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify); | |
12786 | ||
12787 | static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, | |
12788 | struct net_device *netdev, | |
12789 | struct cfg80211_chan_def *chandef, | |
f8d7552e LC |
12790 | gfp_t gfp, |
12791 | enum nl80211_commands notif, | |
12792 | u8 count) | |
5314526b TP |
12793 | { |
12794 | struct sk_buff *msg; | |
12795 | void *hdr; | |
12796 | ||
58050fce | 12797 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
5314526b TP |
12798 | if (!msg) |
12799 | return; | |
12800 | ||
f8d7552e | 12801 | hdr = nl80211hdr_put(msg, 0, 0, 0, notif); |
5314526b TP |
12802 | if (!hdr) { |
12803 | nlmsg_free(msg); | |
12804 | return; | |
12805 | } | |
12806 | ||
683b6d3b JB |
12807 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex)) |
12808 | goto nla_put_failure; | |
12809 | ||
12810 | if (nl80211_send_chandef(msg, chandef)) | |
7eab0f64 | 12811 | goto nla_put_failure; |
5314526b | 12812 | |
f8d7552e LC |
12813 | if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) && |
12814 | (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count))) | |
12815 | goto nla_put_failure; | |
12816 | ||
5314526b TP |
12817 | genlmsg_end(msg, hdr); |
12818 | ||
68eb5503 | 12819 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12820 | NL80211_MCGRP_MLME, gfp); |
5314526b TP |
12821 | return; |
12822 | ||
12823 | nla_put_failure: | |
12824 | genlmsg_cancel(msg, hdr); | |
12825 | nlmsg_free(msg); | |
12826 | } | |
12827 | ||
947add36 JB |
12828 | void cfg80211_ch_switch_notify(struct net_device *dev, |
12829 | struct cfg80211_chan_def *chandef) | |
84f10708 | 12830 | { |
947add36 JB |
12831 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
12832 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 12833 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
947add36 | 12834 | |
e487eaeb | 12835 | ASSERT_WDEV_LOCK(wdev); |
947add36 | 12836 | |
e487eaeb | 12837 | trace_cfg80211_ch_switch_notify(dev, chandef); |
947add36 | 12838 | |
9e0e2961 | 12839 | wdev->chandef = *chandef; |
96f55f12 | 12840 | wdev->preset_chandef = *chandef; |
f8d7552e LC |
12841 | nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, |
12842 | NL80211_CMD_CH_SWITCH_NOTIFY, 0); | |
947add36 JB |
12843 | } |
12844 | EXPORT_SYMBOL(cfg80211_ch_switch_notify); | |
12845 | ||
f8d7552e LC |
12846 | void cfg80211_ch_switch_started_notify(struct net_device *dev, |
12847 | struct cfg80211_chan_def *chandef, | |
12848 | u8 count) | |
12849 | { | |
12850 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
12851 | struct wiphy *wiphy = wdev->wiphy; | |
12852 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); | |
12853 | ||
12854 | trace_cfg80211_ch_switch_started_notify(dev, chandef); | |
12855 | ||
12856 | nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, | |
12857 | NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count); | |
12858 | } | |
12859 | EXPORT_SYMBOL(cfg80211_ch_switch_started_notify); | |
12860 | ||
04f39047 SW |
12861 | void |
12862 | nl80211_radar_notify(struct cfg80211_registered_device *rdev, | |
d2859df5 | 12863 | const struct cfg80211_chan_def *chandef, |
04f39047 SW |
12864 | enum nl80211_radar_event event, |
12865 | struct net_device *netdev, gfp_t gfp) | |
12866 | { | |
12867 | struct sk_buff *msg; | |
12868 | void *hdr; | |
12869 | ||
12870 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
12871 | if (!msg) | |
12872 | return; | |
12873 | ||
12874 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT); | |
12875 | if (!hdr) { | |
12876 | nlmsg_free(msg); | |
12877 | return; | |
12878 | } | |
12879 | ||
12880 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) | |
12881 | goto nla_put_failure; | |
12882 | ||
12883 | /* NOP and radar events don't need a netdev parameter */ | |
12884 | if (netdev) { | |
12885 | struct wireless_dev *wdev = netdev->ieee80211_ptr; | |
12886 | ||
12887 | if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
12888 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
12889 | goto nla_put_failure; | |
12890 | } | |
12891 | ||
12892 | if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event)) | |
12893 | goto nla_put_failure; | |
12894 | ||
12895 | if (nl80211_send_chandef(msg, chandef)) | |
12896 | goto nla_put_failure; | |
12897 | ||
9c90a9f6 | 12898 | genlmsg_end(msg, hdr); |
04f39047 | 12899 | |
68eb5503 | 12900 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12901 | NL80211_MCGRP_MLME, gfp); |
04f39047 SW |
12902 | return; |
12903 | ||
12904 | nla_put_failure: | |
12905 | genlmsg_cancel(msg, hdr); | |
12906 | nlmsg_free(msg); | |
12907 | } | |
12908 | ||
7f6cf311 JB |
12909 | void cfg80211_probe_status(struct net_device *dev, const u8 *addr, |
12910 | u64 cookie, bool acked, gfp_t gfp) | |
12911 | { | |
12912 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 12913 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
7f6cf311 JB |
12914 | struct sk_buff *msg; |
12915 | void *hdr; | |
7f6cf311 | 12916 | |
4ee3e063 BL |
12917 | trace_cfg80211_probe_status(dev, addr, cookie, acked); |
12918 | ||
58050fce | 12919 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
4ee3e063 | 12920 | |
7f6cf311 JB |
12921 | if (!msg) |
12922 | return; | |
12923 | ||
12924 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT); | |
12925 | if (!hdr) { | |
12926 | nlmsg_free(msg); | |
12927 | return; | |
12928 | } | |
12929 | ||
9360ffd1 DM |
12930 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12931 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
12932 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) || | |
12933 | nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) || | |
12934 | (acked && nla_put_flag(msg, NL80211_ATTR_ACK))) | |
12935 | goto nla_put_failure; | |
7f6cf311 | 12936 | |
9c90a9f6 | 12937 | genlmsg_end(msg, hdr); |
7f6cf311 | 12938 | |
68eb5503 | 12939 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 12940 | NL80211_MCGRP_MLME, gfp); |
7f6cf311 JB |
12941 | return; |
12942 | ||
12943 | nla_put_failure: | |
12944 | genlmsg_cancel(msg, hdr); | |
12945 | nlmsg_free(msg); | |
12946 | } | |
12947 | EXPORT_SYMBOL(cfg80211_probe_status); | |
12948 | ||
5e760230 JB |
12949 | void cfg80211_report_obss_beacon(struct wiphy *wiphy, |
12950 | const u8 *frame, size_t len, | |
37c73b5f | 12951 | int freq, int sig_dbm) |
5e760230 | 12952 | { |
f26cbf40 | 12953 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
5e760230 JB |
12954 | struct sk_buff *msg; |
12955 | void *hdr; | |
37c73b5f | 12956 | struct cfg80211_beacon_registration *reg; |
5e760230 | 12957 | |
4ee3e063 BL |
12958 | trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm); |
12959 | ||
37c73b5f BG |
12960 | spin_lock_bh(&rdev->beacon_registrations_lock); |
12961 | list_for_each_entry(reg, &rdev->beacon_registrations, list) { | |
12962 | msg = nlmsg_new(len + 100, GFP_ATOMIC); | |
12963 | if (!msg) { | |
12964 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
12965 | return; | |
12966 | } | |
5e760230 | 12967 | |
37c73b5f BG |
12968 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
12969 | if (!hdr) | |
12970 | goto nla_put_failure; | |
5e760230 | 12971 | |
37c73b5f BG |
12972 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
12973 | (freq && | |
12974 | nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) || | |
12975 | (sig_dbm && | |
12976 | nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) || | |
12977 | nla_put(msg, NL80211_ATTR_FRAME, len, frame)) | |
12978 | goto nla_put_failure; | |
5e760230 | 12979 | |
37c73b5f | 12980 | genlmsg_end(msg, hdr); |
5e760230 | 12981 | |
37c73b5f BG |
12982 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid); |
12983 | } | |
12984 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
5e760230 JB |
12985 | return; |
12986 | ||
12987 | nla_put_failure: | |
37c73b5f BG |
12988 | spin_unlock_bh(&rdev->beacon_registrations_lock); |
12989 | if (hdr) | |
12990 | genlmsg_cancel(msg, hdr); | |
5e760230 JB |
12991 | nlmsg_free(msg); |
12992 | } | |
12993 | EXPORT_SYMBOL(cfg80211_report_obss_beacon); | |
12994 | ||
cd8f7cb4 | 12995 | #ifdef CONFIG_PM |
8cd4d456 LC |
12996 | static int cfg80211_net_detect_results(struct sk_buff *msg, |
12997 | struct cfg80211_wowlan_wakeup *wakeup) | |
12998 | { | |
12999 | struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect; | |
13000 | struct nlattr *nl_results, *nl_match, *nl_freqs; | |
13001 | int i, j; | |
13002 | ||
13003 | nl_results = nla_nest_start( | |
13004 | msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS); | |
13005 | if (!nl_results) | |
13006 | return -EMSGSIZE; | |
13007 | ||
13008 | for (i = 0; i < nd->n_matches; i++) { | |
13009 | struct cfg80211_wowlan_nd_match *match = nd->matches[i]; | |
13010 | ||
13011 | nl_match = nla_nest_start(msg, i); | |
13012 | if (!nl_match) | |
13013 | break; | |
13014 | ||
13015 | /* The SSID attribute is optional in nl80211, but for | |
13016 | * simplicity reasons it's always present in the | |
13017 | * cfg80211 structure. If a driver can't pass the | |
13018 | * SSID, that needs to be changed. A zero length SSID | |
13019 | * is still a valid SSID (wildcard), so it cannot be | |
13020 | * used for this purpose. | |
13021 | */ | |
13022 | if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len, | |
13023 | match->ssid.ssid)) { | |
13024 | nla_nest_cancel(msg, nl_match); | |
13025 | goto out; | |
13026 | } | |
13027 | ||
13028 | if (match->n_channels) { | |
13029 | nl_freqs = nla_nest_start( | |
13030 | msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
13031 | if (!nl_freqs) { | |
13032 | nla_nest_cancel(msg, nl_match); | |
13033 | goto out; | |
13034 | } | |
13035 | ||
13036 | for (j = 0; j < match->n_channels; j++) { | |
5528fae8 | 13037 | if (nla_put_u32(msg, j, match->channels[j])) { |
8cd4d456 LC |
13038 | nla_nest_cancel(msg, nl_freqs); |
13039 | nla_nest_cancel(msg, nl_match); | |
13040 | goto out; | |
13041 | } | |
13042 | } | |
13043 | ||
13044 | nla_nest_end(msg, nl_freqs); | |
13045 | } | |
13046 | ||
13047 | nla_nest_end(msg, nl_match); | |
13048 | } | |
13049 | ||
13050 | out: | |
13051 | nla_nest_end(msg, nl_results); | |
13052 | return 0; | |
13053 | } | |
13054 | ||
cd8f7cb4 JB |
13055 | void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, |
13056 | struct cfg80211_wowlan_wakeup *wakeup, | |
13057 | gfp_t gfp) | |
13058 | { | |
f26cbf40 | 13059 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
cd8f7cb4 JB |
13060 | struct sk_buff *msg; |
13061 | void *hdr; | |
9c90a9f6 | 13062 | int size = 200; |
cd8f7cb4 JB |
13063 | |
13064 | trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup); | |
13065 | ||
13066 | if (wakeup) | |
13067 | size += wakeup->packet_present_len; | |
13068 | ||
13069 | msg = nlmsg_new(size, gfp); | |
13070 | if (!msg) | |
13071 | return; | |
13072 | ||
13073 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN); | |
13074 | if (!hdr) | |
13075 | goto free_msg; | |
13076 | ||
13077 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
13078 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
13079 | goto free_msg; | |
13080 | ||
13081 | if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX, | |
13082 | wdev->netdev->ifindex)) | |
13083 | goto free_msg; | |
13084 | ||
13085 | if (wakeup) { | |
13086 | struct nlattr *reasons; | |
13087 | ||
13088 | reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); | |
7fa322c8 JB |
13089 | if (!reasons) |
13090 | goto free_msg; | |
cd8f7cb4 JB |
13091 | |
13092 | if (wakeup->disconnect && | |
13093 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) | |
13094 | goto free_msg; | |
13095 | if (wakeup->magic_pkt && | |
13096 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) | |
13097 | goto free_msg; | |
13098 | if (wakeup->gtk_rekey_failure && | |
13099 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) | |
13100 | goto free_msg; | |
13101 | if (wakeup->eap_identity_req && | |
13102 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) | |
13103 | goto free_msg; | |
13104 | if (wakeup->four_way_handshake && | |
13105 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) | |
13106 | goto free_msg; | |
13107 | if (wakeup->rfkill_release && | |
13108 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)) | |
13109 | goto free_msg; | |
13110 | ||
13111 | if (wakeup->pattern_idx >= 0 && | |
13112 | nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, | |
13113 | wakeup->pattern_idx)) | |
13114 | goto free_msg; | |
13115 | ||
ae917c9f JB |
13116 | if (wakeup->tcp_match && |
13117 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH)) | |
13118 | goto free_msg; | |
2a0e047e | 13119 | |
ae917c9f JB |
13120 | if (wakeup->tcp_connlost && |
13121 | nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST)) | |
13122 | goto free_msg; | |
2a0e047e | 13123 | |
ae917c9f JB |
13124 | if (wakeup->tcp_nomoretokens && |
13125 | nla_put_flag(msg, | |
13126 | NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS)) | |
13127 | goto free_msg; | |
2a0e047e | 13128 | |
cd8f7cb4 JB |
13129 | if (wakeup->packet) { |
13130 | u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211; | |
13131 | u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN; | |
13132 | ||
13133 | if (!wakeup->packet_80211) { | |
13134 | pkt_attr = | |
13135 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023; | |
13136 | len_attr = | |
13137 | NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN; | |
13138 | } | |
13139 | ||
13140 | if (wakeup->packet_len && | |
13141 | nla_put_u32(msg, len_attr, wakeup->packet_len)) | |
13142 | goto free_msg; | |
13143 | ||
13144 | if (nla_put(msg, pkt_attr, wakeup->packet_present_len, | |
13145 | wakeup->packet)) | |
13146 | goto free_msg; | |
13147 | } | |
13148 | ||
8cd4d456 LC |
13149 | if (wakeup->net_detect && |
13150 | cfg80211_net_detect_results(msg, wakeup)) | |
13151 | goto free_msg; | |
13152 | ||
cd8f7cb4 JB |
13153 | nla_nest_end(msg, reasons); |
13154 | } | |
13155 | ||
9c90a9f6 | 13156 | genlmsg_end(msg, hdr); |
cd8f7cb4 | 13157 | |
68eb5503 | 13158 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 13159 | NL80211_MCGRP_MLME, gfp); |
cd8f7cb4 JB |
13160 | return; |
13161 | ||
13162 | free_msg: | |
13163 | nlmsg_free(msg); | |
13164 | } | |
13165 | EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup); | |
13166 | #endif | |
13167 | ||
3475b094 JM |
13168 | void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, |
13169 | enum nl80211_tdls_operation oper, | |
13170 | u16 reason_code, gfp_t gfp) | |
13171 | { | |
13172 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
f26cbf40 | 13173 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
3475b094 JM |
13174 | struct sk_buff *msg; |
13175 | void *hdr; | |
3475b094 JM |
13176 | |
13177 | trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper, | |
13178 | reason_code); | |
13179 | ||
13180 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
13181 | if (!msg) | |
13182 | return; | |
13183 | ||
13184 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER); | |
13185 | if (!hdr) { | |
13186 | nlmsg_free(msg); | |
13187 | return; | |
13188 | } | |
13189 | ||
13190 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
13191 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || | |
13192 | nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) || | |
13193 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) || | |
13194 | (reason_code > 0 && | |
13195 | nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code))) | |
13196 | goto nla_put_failure; | |
13197 | ||
9c90a9f6 | 13198 | genlmsg_end(msg, hdr); |
3475b094 | 13199 | |
68eb5503 | 13200 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 13201 | NL80211_MCGRP_MLME, gfp); |
3475b094 JM |
13202 | return; |
13203 | ||
13204 | nla_put_failure: | |
13205 | genlmsg_cancel(msg, hdr); | |
13206 | nlmsg_free(msg); | |
13207 | } | |
13208 | EXPORT_SYMBOL(cfg80211_tdls_oper_request); | |
13209 | ||
026331c4 JM |
13210 | static int nl80211_netlink_notify(struct notifier_block * nb, |
13211 | unsigned long state, | |
13212 | void *_notify) | |
13213 | { | |
13214 | struct netlink_notify *notify = _notify; | |
13215 | struct cfg80211_registered_device *rdev; | |
13216 | struct wireless_dev *wdev; | |
37c73b5f | 13217 | struct cfg80211_beacon_registration *reg, *tmp; |
026331c4 | 13218 | |
8f815cdd | 13219 | if (state != NETLINK_URELEASE || notify->protocol != NETLINK_GENERIC) |
026331c4 JM |
13220 | return NOTIFY_DONE; |
13221 | ||
13222 | rcu_read_lock(); | |
13223 | ||
5e760230 | 13224 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { |
78f22b6a | 13225 | bool schedule_destroy_work = false; |
93a1e86c JR |
13226 | bool schedule_scan_stop = false; |
13227 | struct cfg80211_sched_scan_request *sched_scan_req = | |
13228 | rcu_dereference(rdev->sched_scan_req); | |
13229 | ||
13230 | if (sched_scan_req && notify->portid && | |
13231 | sched_scan_req->owner_nlportid == notify->portid) | |
13232 | schedule_scan_stop = true; | |
78f22b6a JB |
13233 | |
13234 | list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) { | |
15e47304 | 13235 | cfg80211_mlme_unregister_socket(wdev, notify->portid); |
37c73b5f | 13236 | |
78f22b6a JB |
13237 | if (wdev->owner_nlportid == notify->portid) |
13238 | schedule_destroy_work = true; | |
13239 | } | |
13240 | ||
37c73b5f BG |
13241 | spin_lock_bh(&rdev->beacon_registrations_lock); |
13242 | list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations, | |
13243 | list) { | |
13244 | if (reg->nlportid == notify->portid) { | |
13245 | list_del(®->list); | |
13246 | kfree(reg); | |
13247 | break; | |
13248 | } | |
13249 | } | |
13250 | spin_unlock_bh(&rdev->beacon_registrations_lock); | |
78f22b6a JB |
13251 | |
13252 | if (schedule_destroy_work) { | |
13253 | struct cfg80211_iface_destroy *destroy; | |
13254 | ||
13255 | destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC); | |
13256 | if (destroy) { | |
13257 | destroy->nlportid = notify->portid; | |
13258 | spin_lock(&rdev->destroy_list_lock); | |
13259 | list_add(&destroy->list, &rdev->destroy_list); | |
13260 | spin_unlock(&rdev->destroy_list_lock); | |
13261 | schedule_work(&rdev->destroy_work); | |
13262 | } | |
93a1e86c JR |
13263 | } else if (schedule_scan_stop) { |
13264 | sched_scan_req->owner_nlportid = 0; | |
13265 | ||
13266 | if (rdev->ops->sched_scan_stop && | |
13267 | rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) | |
13268 | schedule_work(&rdev->sched_scan_stop_wk); | |
78f22b6a | 13269 | } |
5e760230 | 13270 | } |
026331c4 JM |
13271 | |
13272 | rcu_read_unlock(); | |
13273 | ||
05050753 I |
13274 | /* |
13275 | * It is possible that the user space process that is controlling the | |
13276 | * indoor setting disappeared, so notify the regulatory core. | |
13277 | */ | |
13278 | regulatory_netlink_notify(notify->portid); | |
6784c7db | 13279 | return NOTIFY_OK; |
026331c4 JM |
13280 | } |
13281 | ||
13282 | static struct notifier_block nl80211_netlink_notifier = { | |
13283 | .notifier_call = nl80211_netlink_notify, | |
13284 | }; | |
13285 | ||
355199e0 JM |
13286 | void cfg80211_ft_event(struct net_device *netdev, |
13287 | struct cfg80211_ft_event_params *ft_event) | |
13288 | { | |
13289 | struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy; | |
f26cbf40 | 13290 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
355199e0 JM |
13291 | struct sk_buff *msg; |
13292 | void *hdr; | |
355199e0 JM |
13293 | |
13294 | trace_cfg80211_ft_event(wiphy, netdev, ft_event); | |
13295 | ||
13296 | if (!ft_event->target_ap) | |
13297 | return; | |
13298 | ||
13299 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
13300 | if (!msg) | |
13301 | return; | |
13302 | ||
13303 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT); | |
ae917c9f JB |
13304 | if (!hdr) |
13305 | goto out; | |
355199e0 | 13306 | |
ae917c9f JB |
13307 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || |
13308 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || | |
13309 | nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap)) | |
13310 | goto out; | |
355199e0 | 13311 | |
ae917c9f JB |
13312 | if (ft_event->ies && |
13313 | nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies)) | |
13314 | goto out; | |
13315 | if (ft_event->ric_ies && | |
13316 | nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len, | |
13317 | ft_event->ric_ies)) | |
13318 | goto out; | |
355199e0 | 13319 | |
9c90a9f6 | 13320 | genlmsg_end(msg, hdr); |
355199e0 | 13321 | |
68eb5503 | 13322 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, |
2a94fe48 | 13323 | NL80211_MCGRP_MLME, GFP_KERNEL); |
ae917c9f JB |
13324 | return; |
13325 | out: | |
13326 | nlmsg_free(msg); | |
355199e0 JM |
13327 | } |
13328 | EXPORT_SYMBOL(cfg80211_ft_event); | |
13329 | ||
5de17984 AS |
13330 | void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp) |
13331 | { | |
13332 | struct cfg80211_registered_device *rdev; | |
13333 | struct sk_buff *msg; | |
13334 | void *hdr; | |
13335 | u32 nlportid; | |
13336 | ||
f26cbf40 | 13337 | rdev = wiphy_to_rdev(wdev->wiphy); |
5de17984 AS |
13338 | if (!rdev->crit_proto_nlportid) |
13339 | return; | |
13340 | ||
13341 | nlportid = rdev->crit_proto_nlportid; | |
13342 | rdev->crit_proto_nlportid = 0; | |
13343 | ||
13344 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
13345 | if (!msg) | |
13346 | return; | |
13347 | ||
13348 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP); | |
13349 | if (!hdr) | |
13350 | goto nla_put_failure; | |
13351 | ||
13352 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
13353 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
13354 | goto nla_put_failure; | |
13355 | ||
13356 | genlmsg_end(msg, hdr); | |
13357 | ||
13358 | genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); | |
13359 | return; | |
13360 | ||
13361 | nla_put_failure: | |
13362 | if (hdr) | |
13363 | genlmsg_cancel(msg, hdr); | |
13364 | nlmsg_free(msg); | |
13365 | ||
13366 | } | |
13367 | EXPORT_SYMBOL(cfg80211_crit_proto_stopped); | |
13368 | ||
348baf0e JB |
13369 | void nl80211_send_ap_stopped(struct wireless_dev *wdev) |
13370 | { | |
13371 | struct wiphy *wiphy = wdev->wiphy; | |
f26cbf40 | 13372 | struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
348baf0e JB |
13373 | struct sk_buff *msg; |
13374 | void *hdr; | |
13375 | ||
13376 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
13377 | if (!msg) | |
13378 | return; | |
13379 | ||
13380 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP); | |
13381 | if (!hdr) | |
13382 | goto out; | |
13383 | ||
13384 | if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || | |
13385 | nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) || | |
13386 | nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) | |
13387 | goto out; | |
13388 | ||
13389 | genlmsg_end(msg, hdr); | |
13390 | ||
13391 | genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0, | |
13392 | NL80211_MCGRP_MLME, GFP_KERNEL); | |
13393 | return; | |
13394 | out: | |
13395 | nlmsg_free(msg); | |
13396 | } | |
13397 | ||
55682965 JB |
13398 | /* initialisation/exit functions */ |
13399 | ||
13400 | int nl80211_init(void) | |
13401 | { | |
0d63cbb5 | 13402 | int err; |
55682965 | 13403 | |
2a94fe48 JB |
13404 | err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops, |
13405 | nl80211_mcgrps); | |
55682965 JB |
13406 | if (err) |
13407 | return err; | |
13408 | ||
026331c4 JM |
13409 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
13410 | if (err) | |
13411 | goto err_out; | |
13412 | ||
55682965 JB |
13413 | return 0; |
13414 | err_out: | |
13415 | genl_unregister_family(&nl80211_fam); | |
13416 | return err; | |
13417 | } | |
13418 | ||
13419 | void nl80211_exit(void) | |
13420 | { | |
026331c4 | 13421 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
13422 | genl_unregister_family(&nl80211_fam); |
13423 | } |