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> |
55682965 JB |
5 | */ |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
55682965 JB |
11 | #include <linux/list.h> |
12 | #include <linux/if_ether.h> | |
13 | #include <linux/ieee80211.h> | |
14 | #include <linux/nl80211.h> | |
15 | #include <linux/rtnetlink.h> | |
16 | #include <linux/netlink.h> | |
2a519311 | 17 | #include <linux/etherdevice.h> |
463d0183 | 18 | #include <net/net_namespace.h> |
55682965 JB |
19 | #include <net/genetlink.h> |
20 | #include <net/cfg80211.h> | |
463d0183 | 21 | #include <net/sock.h> |
55682965 JB |
22 | #include "core.h" |
23 | #include "nl80211.h" | |
b2e1b302 | 24 | #include "reg.h" |
55682965 | 25 | |
4c476991 JB |
26 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, |
27 | struct genl_info *info); | |
28 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
29 | struct genl_info *info); | |
30 | ||
55682965 JB |
31 | /* the netlink family */ |
32 | static struct genl_family nl80211_fam = { | |
33 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
34 | .name = "nl80211", /* have users key off the name instead */ | |
35 | .hdrsize = 0, /* no private header */ | |
36 | .version = 1, /* no particular meaning now */ | |
37 | .maxattr = NL80211_ATTR_MAX, | |
463d0183 | 38 | .netnsok = true, |
4c476991 JB |
39 | .pre_doit = nl80211_pre_doit, |
40 | .post_doit = nl80211_post_doit, | |
55682965 JB |
41 | }; |
42 | ||
79c97e97 | 43 | /* internal helper: get rdev and dev */ |
463d0183 | 44 | static int get_rdev_dev_by_info_ifindex(struct genl_info *info, |
79c97e97 | 45 | struct cfg80211_registered_device **rdev, |
55682965 JB |
46 | struct net_device **dev) |
47 | { | |
463d0183 | 48 | struct nlattr **attrs = info->attrs; |
55682965 JB |
49 | int ifindex; |
50 | ||
bba95fef | 51 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
52 | return -EINVAL; |
53 | ||
bba95fef | 54 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
463d0183 | 55 | *dev = dev_get_by_index(genl_info_net(info), ifindex); |
55682965 JB |
56 | if (!*dev) |
57 | return -ENODEV; | |
58 | ||
463d0183 | 59 | *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex); |
79c97e97 | 60 | if (IS_ERR(*rdev)) { |
55682965 | 61 | dev_put(*dev); |
79c97e97 | 62 | return PTR_ERR(*rdev); |
55682965 JB |
63 | } |
64 | ||
65 | return 0; | |
66 | } | |
67 | ||
68 | /* policy for the attributes */ | |
b54452b0 | 69 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
70 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
71 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 72 | .len = 20-1 }, |
31888487 | 73 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 74 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 75 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
76 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
77 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
78 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
79 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 80 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
81 | |
82 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
83 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
84 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
85 | |
86 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
3e5d7649 | 87 | [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN }, |
41ade00f | 88 | |
b9454e83 | 89 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
90 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
91 | .len = WLAN_MAX_KEY_LEN }, | |
92 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
93 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
94 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
9f26a952 | 95 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, |
e31b8213 | 96 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
ed1b6cc7 JB |
97 | |
98 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
99 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
100 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
101 | .len = IEEE80211_MAX_DATA_LEN }, | |
102 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
103 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
104 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
105 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
106 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
107 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
108 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 109 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 110 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 111 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
112 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
113 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
114 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 115 | |
b2e1b302 LR |
116 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
117 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
118 | ||
9f1ba906 JM |
119 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
120 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
121 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
122 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
123 | .len = NL80211_MAX_SUPP_RATES }, | |
50b12f59 | 124 | [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 }, |
36aedc90 | 125 | |
93da9cc1 | 126 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
127 | ||
36aedc90 JM |
128 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
129 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
130 | |
131 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
132 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
133 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
134 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
135 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
136 | |
137 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
138 | .len = IEEE80211_MAX_SSID_LEN }, | |
139 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
140 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 141 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 142 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 143 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
144 | [NL80211_ATTR_STA_FLAGS2] = { |
145 | .len = sizeof(struct nl80211_sta_flag_update), | |
146 | }, | |
3f77316c | 147 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
148 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
149 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
150 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
151 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
152 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 153 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 154 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
155 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
156 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
157 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
158 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 159 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
160 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
161 | .len = IEEE80211_MAX_DATA_LEN }, | |
162 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 163 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 164 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 165 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 166 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
167 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, |
168 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 169 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
afe0cbf8 BR |
170 | [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 }, |
171 | [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 }, | |
885a46d0 | 172 | [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 }, |
f7ca38df | 173 | [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG }, |
55682965 JB |
174 | }; |
175 | ||
e31b8213 | 176 | /* policy for the key attributes */ |
b54452b0 | 177 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 178 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
179 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
180 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
181 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, | |
182 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
183 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 184 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
b9454e83 JB |
185 | }; |
186 | ||
a043897a HS |
187 | /* ifidx get helper */ |
188 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
189 | { | |
190 | int res; | |
191 | ||
192 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
193 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
194 | nl80211_policy); | |
195 | if (res) | |
196 | return res; | |
197 | ||
198 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
199 | return -EINVAL; | |
200 | ||
201 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
202 | if (!res) | |
203 | return -EINVAL; | |
204 | return res; | |
205 | } | |
206 | ||
67748893 JB |
207 | static int nl80211_prepare_netdev_dump(struct sk_buff *skb, |
208 | struct netlink_callback *cb, | |
209 | struct cfg80211_registered_device **rdev, | |
210 | struct net_device **dev) | |
211 | { | |
212 | int ifidx = cb->args[0]; | |
213 | int err; | |
214 | ||
215 | if (!ifidx) | |
216 | ifidx = nl80211_get_ifidx(cb); | |
217 | if (ifidx < 0) | |
218 | return ifidx; | |
219 | ||
220 | cb->args[0] = ifidx; | |
221 | ||
222 | rtnl_lock(); | |
223 | ||
224 | *dev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
225 | if (!*dev) { | |
226 | err = -ENODEV; | |
227 | goto out_rtnl; | |
228 | } | |
229 | ||
230 | *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3cc25e51 FF |
231 | if (IS_ERR(*rdev)) { |
232 | err = PTR_ERR(*rdev); | |
67748893 JB |
233 | goto out_rtnl; |
234 | } | |
235 | ||
236 | return 0; | |
237 | out_rtnl: | |
238 | rtnl_unlock(); | |
239 | return err; | |
240 | } | |
241 | ||
242 | static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev) | |
243 | { | |
244 | cfg80211_unlock_rdev(rdev); | |
245 | rtnl_unlock(); | |
246 | } | |
247 | ||
f4a11bb0 JB |
248 | /* IE validation */ |
249 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
250 | { | |
251 | const u8 *pos; | |
252 | int len; | |
253 | ||
254 | if (!attr) | |
255 | return true; | |
256 | ||
257 | pos = nla_data(attr); | |
258 | len = nla_len(attr); | |
259 | ||
260 | while (len) { | |
261 | u8 elemlen; | |
262 | ||
263 | if (len < 2) | |
264 | return false; | |
265 | len -= 2; | |
266 | ||
267 | elemlen = pos[1]; | |
268 | if (elemlen > len) | |
269 | return false; | |
270 | ||
271 | len -= elemlen; | |
272 | pos += 2 + elemlen; | |
273 | } | |
274 | ||
275 | return true; | |
276 | } | |
277 | ||
55682965 JB |
278 | /* message building helper */ |
279 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
280 | int flags, u8 cmd) | |
281 | { | |
282 | /* since there is no private header just add the generic one */ | |
283 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
284 | } | |
285 | ||
5dab3b8a LR |
286 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
287 | struct ieee80211_channel *chan) | |
288 | { | |
289 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
290 | chan->center_freq); | |
291 | ||
292 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
293 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
294 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
295 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
296 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
297 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
298 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
299 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
300 | ||
301 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
302 | DBM_TO_MBM(chan->max_power)); | |
303 | ||
304 | return 0; | |
305 | ||
306 | nla_put_failure: | |
307 | return -ENOBUFS; | |
308 | } | |
309 | ||
55682965 JB |
310 | /* netlink command implementations */ |
311 | ||
b9454e83 JB |
312 | struct key_parse { |
313 | struct key_params p; | |
314 | int idx; | |
e31b8213 | 315 | int type; |
b9454e83 JB |
316 | bool def, defmgmt; |
317 | }; | |
318 | ||
319 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
320 | { | |
321 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
322 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
323 | nl80211_key_policy); | |
324 | if (err) | |
325 | return err; | |
326 | ||
327 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
328 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
329 | ||
330 | if (tb[NL80211_KEY_IDX]) | |
331 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
332 | ||
333 | if (tb[NL80211_KEY_DATA]) { | |
334 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
335 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
336 | } | |
337 | ||
338 | if (tb[NL80211_KEY_SEQ]) { | |
339 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
340 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
341 | } | |
342 | ||
343 | if (tb[NL80211_KEY_CIPHER]) | |
344 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
345 | ||
e31b8213 JB |
346 | if (tb[NL80211_KEY_TYPE]) { |
347 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
348 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
349 | return -EINVAL; | |
350 | } | |
351 | ||
b9454e83 JB |
352 | return 0; |
353 | } | |
354 | ||
355 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
356 | { | |
357 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
358 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
359 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
360 | } | |
361 | ||
362 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
363 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
364 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
365 | } | |
366 | ||
367 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
368 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
369 | ||
370 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
371 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
372 | ||
373 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
374 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
375 | ||
e31b8213 JB |
376 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
377 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
378 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
379 | return -EINVAL; | |
380 | } | |
381 | ||
b9454e83 JB |
382 | return 0; |
383 | } | |
384 | ||
385 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
386 | { | |
387 | int err; | |
388 | ||
389 | memset(k, 0, sizeof(*k)); | |
390 | k->idx = -1; | |
e31b8213 | 391 | k->type = -1; |
b9454e83 JB |
392 | |
393 | if (info->attrs[NL80211_ATTR_KEY]) | |
394 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
395 | else | |
396 | err = nl80211_parse_key_old(info, k); | |
397 | ||
398 | if (err) | |
399 | return err; | |
400 | ||
401 | if (k->def && k->defmgmt) | |
402 | return -EINVAL; | |
403 | ||
404 | if (k->idx != -1) { | |
405 | if (k->defmgmt) { | |
406 | if (k->idx < 4 || k->idx > 5) | |
407 | return -EINVAL; | |
408 | } else if (k->def) { | |
409 | if (k->idx < 0 || k->idx > 3) | |
410 | return -EINVAL; | |
411 | } else { | |
412 | if (k->idx < 0 || k->idx > 5) | |
413 | return -EINVAL; | |
414 | } | |
415 | } | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
fffd0934 JB |
420 | static struct cfg80211_cached_keys * |
421 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
422 | struct nlattr *keys) | |
423 | { | |
424 | struct key_parse parse; | |
425 | struct nlattr *key; | |
426 | struct cfg80211_cached_keys *result; | |
427 | int rem, err, def = 0; | |
428 | ||
429 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
430 | if (!result) | |
431 | return ERR_PTR(-ENOMEM); | |
432 | ||
433 | result->def = -1; | |
434 | result->defmgmt = -1; | |
435 | ||
436 | nla_for_each_nested(key, keys, rem) { | |
437 | memset(&parse, 0, sizeof(parse)); | |
438 | parse.idx = -1; | |
439 | ||
440 | err = nl80211_parse_key_new(key, &parse); | |
441 | if (err) | |
442 | goto error; | |
443 | err = -EINVAL; | |
444 | if (!parse.p.key) | |
445 | goto error; | |
446 | if (parse.idx < 0 || parse.idx > 4) | |
447 | goto error; | |
448 | if (parse.def) { | |
449 | if (def) | |
450 | goto error; | |
451 | def = 1; | |
452 | result->def = parse.idx; | |
453 | } else if (parse.defmgmt) | |
454 | goto error; | |
455 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 456 | parse.idx, false, NULL); |
fffd0934 JB |
457 | if (err) |
458 | goto error; | |
459 | result->params[parse.idx].cipher = parse.p.cipher; | |
460 | result->params[parse.idx].key_len = parse.p.key_len; | |
461 | result->params[parse.idx].key = result->data[parse.idx]; | |
462 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
463 | } | |
464 | ||
465 | return result; | |
466 | error: | |
467 | kfree(result); | |
468 | return ERR_PTR(err); | |
469 | } | |
470 | ||
471 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
472 | { | |
473 | ASSERT_WDEV_LOCK(wdev); | |
474 | ||
fffd0934 JB |
475 | switch (wdev->iftype) { |
476 | case NL80211_IFTYPE_AP: | |
477 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 478 | case NL80211_IFTYPE_P2P_GO: |
fffd0934 JB |
479 | break; |
480 | case NL80211_IFTYPE_ADHOC: | |
481 | if (!wdev->current_bss) | |
482 | return -ENOLINK; | |
483 | break; | |
484 | case NL80211_IFTYPE_STATION: | |
074ac8df | 485 | case NL80211_IFTYPE_P2P_CLIENT: |
fffd0934 JB |
486 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
487 | return -ENOLINK; | |
488 | break; | |
489 | default: | |
490 | return -EINVAL; | |
491 | } | |
492 | ||
493 | return 0; | |
494 | } | |
495 | ||
55682965 JB |
496 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
497 | struct cfg80211_registered_device *dev) | |
498 | { | |
499 | void *hdr; | |
ee688b00 JB |
500 | struct nlattr *nl_bands, *nl_band; |
501 | struct nlattr *nl_freqs, *nl_freq; | |
502 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 503 | struct nlattr *nl_modes; |
8fdc621d | 504 | struct nlattr *nl_cmds; |
ee688b00 JB |
505 | enum ieee80211_band band; |
506 | struct ieee80211_channel *chan; | |
507 | struct ieee80211_rate *rate; | |
508 | int i; | |
f59ac048 | 509 | u16 ifmodes = dev->wiphy.interface_modes; |
2e161f78 JB |
510 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
511 | dev->wiphy.mgmt_stypes; | |
55682965 JB |
512 | |
513 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
514 | if (!hdr) | |
515 | return -1; | |
516 | ||
b5850a7a | 517 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 518 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca | 519 | |
f5ea9120 JB |
520 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, |
521 | cfg80211_rdev_list_generation); | |
522 | ||
b9a5f8ca JM |
523 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
524 | dev->wiphy.retry_short); | |
525 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
526 | dev->wiphy.retry_long); | |
527 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
528 | dev->wiphy.frag_threshold); | |
529 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
530 | dev->wiphy.rts_threshold); | |
81077e82 LT |
531 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
532 | dev->wiphy.coverage_class); | |
2a519311 JB |
533 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
534 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
535 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
536 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 537 | |
e31b8213 JB |
538 | if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) |
539 | NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN); | |
540 | ||
25e47c18 JB |
541 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
542 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
543 | dev->wiphy.cipher_suites); | |
544 | ||
67fbb16b SO |
545 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
546 | dev->wiphy.max_num_pmkids); | |
547 | ||
c0692b8f JB |
548 | if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) |
549 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE); | |
550 | ||
afe0cbf8 BR |
551 | if (dev->ops->get_antenna) { |
552 | u32 tx_ant = 0, rx_ant = 0; | |
553 | int res; | |
554 | res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant); | |
555 | if (!res) { | |
556 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant); | |
557 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant); | |
558 | } | |
559 | } | |
560 | ||
f59ac048 LR |
561 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
562 | if (!nl_modes) | |
563 | goto nla_put_failure; | |
564 | ||
565 | i = 0; | |
566 | while (ifmodes) { | |
567 | if (ifmodes & 1) | |
568 | NLA_PUT_FLAG(msg, i); | |
569 | ifmodes >>= 1; | |
570 | i++; | |
571 | } | |
572 | ||
573 | nla_nest_end(msg, nl_modes); | |
574 | ||
ee688b00 JB |
575 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
576 | if (!nl_bands) | |
577 | goto nla_put_failure; | |
578 | ||
579 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
580 | if (!dev->wiphy.bands[band]) | |
581 | continue; | |
582 | ||
583 | nl_band = nla_nest_start(msg, band); | |
584 | if (!nl_band) | |
585 | goto nla_put_failure; | |
586 | ||
d51626df JB |
587 | /* add HT info */ |
588 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
589 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
590 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
591 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
592 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
593 | dev->wiphy.bands[band]->ht_cap.cap); | |
594 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
595 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
596 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
597 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
598 | } | |
599 | ||
ee688b00 JB |
600 | /* add frequencies */ |
601 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
602 | if (!nl_freqs) | |
603 | goto nla_put_failure; | |
604 | ||
605 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
606 | nl_freq = nla_nest_start(msg, i); | |
607 | if (!nl_freq) | |
608 | goto nla_put_failure; | |
609 | ||
610 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
611 | |
612 | if (nl80211_msg_put_channel(msg, chan)) | |
613 | goto nla_put_failure; | |
e2f367f2 | 614 | |
ee688b00 JB |
615 | nla_nest_end(msg, nl_freq); |
616 | } | |
617 | ||
618 | nla_nest_end(msg, nl_freqs); | |
619 | ||
620 | /* add bitrates */ | |
621 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
622 | if (!nl_rates) | |
623 | goto nla_put_failure; | |
624 | ||
625 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
626 | nl_rate = nla_nest_start(msg, i); | |
627 | if (!nl_rate) | |
628 | goto nla_put_failure; | |
629 | ||
630 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
631 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
632 | rate->bitrate); | |
633 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
634 | NLA_PUT_FLAG(msg, | |
635 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
636 | ||
637 | nla_nest_end(msg, nl_rate); | |
638 | } | |
639 | ||
640 | nla_nest_end(msg, nl_rates); | |
641 | ||
642 | nla_nest_end(msg, nl_band); | |
643 | } | |
644 | nla_nest_end(msg, nl_bands); | |
645 | ||
8fdc621d JB |
646 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
647 | if (!nl_cmds) | |
648 | goto nla_put_failure; | |
649 | ||
650 | i = 0; | |
651 | #define CMD(op, n) \ | |
652 | do { \ | |
653 | if (dev->ops->op) { \ | |
654 | i++; \ | |
655 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
656 | } \ | |
657 | } while (0) | |
658 | ||
659 | CMD(add_virtual_intf, NEW_INTERFACE); | |
660 | CMD(change_virtual_intf, SET_INTERFACE); | |
661 | CMD(add_key, NEW_KEY); | |
662 | CMD(add_beacon, NEW_BEACON); | |
663 | CMD(add_station, NEW_STATION); | |
664 | CMD(add_mpath, NEW_MPATH); | |
29cbe68c | 665 | CMD(update_mesh_params, SET_MESH_PARAMS); |
8fdc621d | 666 | CMD(change_bss, SET_BSS); |
636a5d36 JM |
667 | CMD(auth, AUTHENTICATE); |
668 | CMD(assoc, ASSOCIATE); | |
669 | CMD(deauth, DEAUTHENTICATE); | |
670 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 671 | CMD(join_ibss, JOIN_IBSS); |
29cbe68c | 672 | CMD(join_mesh, JOIN_MESH); |
67fbb16b SO |
673 | CMD(set_pmksa, SET_PMKSA); |
674 | CMD(del_pmksa, DEL_PMKSA); | |
675 | CMD(flush_pmksa, FLUSH_PMKSA); | |
9588bbd5 | 676 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
13ae75b1 | 677 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 678 | CMD(mgmt_tx, FRAME); |
f7ca38df | 679 | CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); |
5be83de5 | 680 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 JB |
681 | i++; |
682 | NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); | |
683 | } | |
f444de05 | 684 | CMD(set_channel, SET_CHANNEL); |
e8347eba | 685 | CMD(set_wds_peer, SET_WDS_PEER); |
8fdc621d JB |
686 | |
687 | #undef CMD | |
b23aa676 | 688 | |
6829c878 | 689 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
690 | i++; |
691 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
692 | } | |
693 | ||
6829c878 | 694 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
695 | i++; |
696 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
697 | } | |
698 | ||
8fdc621d JB |
699 | nla_nest_end(msg, nl_cmds); |
700 | ||
f7ca38df JB |
701 | /* for now at least assume all drivers have it */ |
702 | if (dev->ops->mgmt_tx) | |
703 | NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK); | |
704 | ||
2e161f78 JB |
705 | if (mgmt_stypes) { |
706 | u16 stypes; | |
707 | struct nlattr *nl_ftypes, *nl_ifs; | |
708 | enum nl80211_iftype ift; | |
709 | ||
710 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
711 | if (!nl_ifs) | |
712 | goto nla_put_failure; | |
713 | ||
714 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
715 | nl_ftypes = nla_nest_start(msg, ift); | |
716 | if (!nl_ftypes) | |
717 | goto nla_put_failure; | |
718 | i = 0; | |
719 | stypes = mgmt_stypes[ift].tx; | |
720 | while (stypes) { | |
721 | if (stypes & 1) | |
722 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
723 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
724 | stypes >>= 1; | |
725 | i++; | |
726 | } | |
727 | nla_nest_end(msg, nl_ftypes); | |
728 | } | |
729 | ||
74b70a4e JB |
730 | nla_nest_end(msg, nl_ifs); |
731 | ||
2e161f78 JB |
732 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
733 | if (!nl_ifs) | |
734 | goto nla_put_failure; | |
735 | ||
736 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
737 | nl_ftypes = nla_nest_start(msg, ift); | |
738 | if (!nl_ftypes) | |
739 | goto nla_put_failure; | |
740 | i = 0; | |
741 | stypes = mgmt_stypes[ift].rx; | |
742 | while (stypes) { | |
743 | if (stypes & 1) | |
744 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
745 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
746 | stypes >>= 1; | |
747 | i++; | |
748 | } | |
749 | nla_nest_end(msg, nl_ftypes); | |
750 | } | |
751 | nla_nest_end(msg, nl_ifs); | |
752 | } | |
753 | ||
55682965 JB |
754 | return genlmsg_end(msg, hdr); |
755 | ||
756 | nla_put_failure: | |
bc3ed28c TG |
757 | genlmsg_cancel(msg, hdr); |
758 | return -EMSGSIZE; | |
55682965 JB |
759 | } |
760 | ||
761 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
762 | { | |
763 | int idx = 0; | |
764 | int start = cb->args[0]; | |
765 | struct cfg80211_registered_device *dev; | |
766 | ||
a1794390 | 767 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 768 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
769 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
770 | continue; | |
b4637271 | 771 | if (++idx <= start) |
55682965 JB |
772 | continue; |
773 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
774 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
775 | dev) < 0) { |
776 | idx--; | |
55682965 | 777 | break; |
b4637271 | 778 | } |
55682965 | 779 | } |
a1794390 | 780 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
781 | |
782 | cb->args[0] = idx; | |
783 | ||
784 | return skb->len; | |
785 | } | |
786 | ||
787 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
788 | { | |
789 | struct sk_buff *msg; | |
4c476991 | 790 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
55682965 | 791 | |
fd2120ca | 792 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 793 | if (!msg) |
4c476991 | 794 | return -ENOMEM; |
55682965 | 795 | |
4c476991 JB |
796 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) { |
797 | nlmsg_free(msg); | |
798 | return -ENOBUFS; | |
799 | } | |
55682965 | 800 | |
134e6375 | 801 | return genlmsg_reply(msg, info); |
55682965 JB |
802 | } |
803 | ||
31888487 JM |
804 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
805 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
806 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
807 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
808 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
809 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
810 | }; | |
811 | ||
812 | static int parse_txq_params(struct nlattr *tb[], | |
813 | struct ieee80211_txq_params *txq_params) | |
814 | { | |
815 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
816 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
817 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
818 | return -EINVAL; | |
819 | ||
820 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
821 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
822 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
823 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
824 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
825 | ||
826 | return 0; | |
827 | } | |
828 | ||
f444de05 JB |
829 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
830 | { | |
831 | /* | |
832 | * You can only set the channel explicitly for AP, mesh | |
833 | * and WDS type interfaces; all others have their channel | |
834 | * managed via their respective "establish a connection" | |
835 | * command (connect, join, ...) | |
836 | * | |
837 | * Monitors are special as they are normally slaved to | |
838 | * whatever else is going on, so they behave as though | |
839 | * you tried setting the wiphy channel itself. | |
840 | */ | |
841 | return !wdev || | |
842 | wdev->iftype == NL80211_IFTYPE_AP || | |
843 | wdev->iftype == NL80211_IFTYPE_WDS || | |
844 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || | |
074ac8df JB |
845 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
846 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
847 | } |
848 | ||
849 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, | |
850 | struct wireless_dev *wdev, | |
851 | struct genl_info *info) | |
852 | { | |
853 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
854 | u32 freq; | |
855 | int result; | |
856 | ||
857 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
858 | return -EINVAL; | |
859 | ||
860 | if (!nl80211_can_set_dev_channel(wdev)) | |
861 | return -EOPNOTSUPP; | |
862 | ||
863 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
864 | channel_type = nla_get_u32(info->attrs[ | |
865 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
866 | if (channel_type != NL80211_CHAN_NO_HT && | |
867 | channel_type != NL80211_CHAN_HT20 && | |
868 | channel_type != NL80211_CHAN_HT40PLUS && | |
869 | channel_type != NL80211_CHAN_HT40MINUS) | |
870 | return -EINVAL; | |
871 | } | |
872 | ||
873 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
874 | ||
875 | mutex_lock(&rdev->devlist_mtx); | |
876 | if (wdev) { | |
877 | wdev_lock(wdev); | |
878 | result = cfg80211_set_freq(rdev, wdev, freq, channel_type); | |
879 | wdev_unlock(wdev); | |
880 | } else { | |
881 | result = cfg80211_set_freq(rdev, NULL, freq, channel_type); | |
882 | } | |
883 | mutex_unlock(&rdev->devlist_mtx); | |
884 | ||
885 | return result; | |
886 | } | |
887 | ||
888 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
889 | { | |
4c476991 JB |
890 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
891 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 892 | |
4c476991 | 893 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
f444de05 JB |
894 | } |
895 | ||
e8347eba BJ |
896 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
897 | { | |
43b19952 JB |
898 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
899 | struct net_device *dev = info->user_ptr[1]; | |
900 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
388ac775 | 901 | const u8 *bssid; |
e8347eba BJ |
902 | |
903 | if (!info->attrs[NL80211_ATTR_MAC]) | |
904 | return -EINVAL; | |
905 | ||
43b19952 JB |
906 | if (netif_running(dev)) |
907 | return -EBUSY; | |
e8347eba | 908 | |
43b19952 JB |
909 | if (!rdev->ops->set_wds_peer) |
910 | return -EOPNOTSUPP; | |
e8347eba | 911 | |
43b19952 JB |
912 | if (wdev->iftype != NL80211_IFTYPE_WDS) |
913 | return -EOPNOTSUPP; | |
e8347eba BJ |
914 | |
915 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
43b19952 | 916 | return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid); |
e8347eba BJ |
917 | } |
918 | ||
919 | ||
55682965 JB |
920 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
921 | { | |
922 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
923 | struct net_device *netdev = NULL; |
924 | struct wireless_dev *wdev; | |
a1e567c8 | 925 | int result = 0, rem_txq_params = 0; |
31888487 | 926 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
927 | u32 changed; |
928 | u8 retry_short = 0, retry_long = 0; | |
929 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 930 | u8 coverage_class = 0; |
55682965 | 931 | |
f444de05 JB |
932 | /* |
933 | * Try to find the wiphy and netdev. Normally this | |
934 | * function shouldn't need the netdev, but this is | |
935 | * done for backward compatibility -- previously | |
936 | * setting the channel was done per wiphy, but now | |
937 | * it is per netdev. Previous userland like hostapd | |
938 | * also passed a netdev to set_wiphy, so that it is | |
939 | * possible to let that go to the right netdev! | |
940 | */ | |
4bbf4d56 JB |
941 | mutex_lock(&cfg80211_mutex); |
942 | ||
f444de05 JB |
943 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
944 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
945 | ||
946 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
947 | if (netdev && netdev->ieee80211_ptr) { | |
948 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
949 | mutex_lock(&rdev->mtx); | |
950 | } else | |
951 | netdev = NULL; | |
4bbf4d56 JB |
952 | } |
953 | ||
f444de05 JB |
954 | if (!netdev) { |
955 | rdev = __cfg80211_rdev_from_info(info); | |
956 | if (IS_ERR(rdev)) { | |
957 | mutex_unlock(&cfg80211_mutex); | |
4c476991 | 958 | return PTR_ERR(rdev); |
f444de05 JB |
959 | } |
960 | wdev = NULL; | |
961 | netdev = NULL; | |
962 | result = 0; | |
963 | ||
964 | mutex_lock(&rdev->mtx); | |
965 | } else if (netif_running(netdev) && | |
966 | nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) | |
967 | wdev = netdev->ieee80211_ptr; | |
968 | else | |
969 | wdev = NULL; | |
970 | ||
971 | /* | |
972 | * end workaround code, by now the rdev is available | |
973 | * and locked, and wdev may or may not be NULL. | |
974 | */ | |
4bbf4d56 JB |
975 | |
976 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
977 | result = cfg80211_dev_rename( |
978 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
979 | |
980 | mutex_unlock(&cfg80211_mutex); | |
981 | ||
982 | if (result) | |
983 | goto bad_res; | |
31888487 JM |
984 | |
985 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
986 | struct ieee80211_txq_params txq_params; | |
987 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
988 | ||
989 | if (!rdev->ops->set_txq_params) { | |
990 | result = -EOPNOTSUPP; | |
991 | goto bad_res; | |
992 | } | |
993 | ||
994 | nla_for_each_nested(nl_txq_params, | |
995 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
996 | rem_txq_params) { | |
997 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
998 | nla_data(nl_txq_params), | |
999 | nla_len(nl_txq_params), | |
1000 | txq_params_policy); | |
1001 | result = parse_txq_params(tb, &txq_params); | |
1002 | if (result) | |
1003 | goto bad_res; | |
1004 | ||
1005 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
1006 | &txq_params); | |
1007 | if (result) | |
1008 | goto bad_res; | |
1009 | } | |
1010 | } | |
55682965 | 1011 | |
72bdcf34 | 1012 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
f444de05 | 1013 | result = __nl80211_set_channel(rdev, wdev, info); |
72bdcf34 JM |
1014 | if (result) |
1015 | goto bad_res; | |
1016 | } | |
1017 | ||
98d2ff8b JO |
1018 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
1019 | enum nl80211_tx_power_setting type; | |
1020 | int idx, mbm = 0; | |
1021 | ||
1022 | if (!rdev->ops->set_tx_power) { | |
60ea385f | 1023 | result = -EOPNOTSUPP; |
98d2ff8b JO |
1024 | goto bad_res; |
1025 | } | |
1026 | ||
1027 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
1028 | type = nla_get_u32(info->attrs[idx]); | |
1029 | ||
1030 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
1031 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
1032 | result = -EINVAL; | |
1033 | goto bad_res; | |
1034 | } | |
1035 | ||
1036 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
1037 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
1038 | mbm = nla_get_u32(info->attrs[idx]); | |
1039 | } | |
1040 | ||
1041 | result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm); | |
1042 | if (result) | |
1043 | goto bad_res; | |
1044 | } | |
1045 | ||
afe0cbf8 BR |
1046 | if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] && |
1047 | info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) { | |
1048 | u32 tx_ant, rx_ant; | |
1049 | if (!rdev->ops->set_antenna) { | |
1050 | result = -EOPNOTSUPP; | |
1051 | goto bad_res; | |
1052 | } | |
1053 | ||
1054 | tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]); | |
1055 | rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]); | |
1056 | ||
1057 | result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant); | |
1058 | if (result) | |
1059 | goto bad_res; | |
1060 | } | |
1061 | ||
b9a5f8ca JM |
1062 | changed = 0; |
1063 | ||
1064 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
1065 | retry_short = nla_get_u8( | |
1066 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
1067 | if (retry_short == 0) { | |
1068 | result = -EINVAL; | |
1069 | goto bad_res; | |
1070 | } | |
1071 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
1072 | } | |
1073 | ||
1074 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
1075 | retry_long = nla_get_u8( | |
1076 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
1077 | if (retry_long == 0) { | |
1078 | result = -EINVAL; | |
1079 | goto bad_res; | |
1080 | } | |
1081 | changed |= WIPHY_PARAM_RETRY_LONG; | |
1082 | } | |
1083 | ||
1084 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
1085 | frag_threshold = nla_get_u32( | |
1086 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
1087 | if (frag_threshold < 256) { | |
1088 | result = -EINVAL; | |
1089 | goto bad_res; | |
1090 | } | |
1091 | if (frag_threshold != (u32) -1) { | |
1092 | /* | |
1093 | * Fragments (apart from the last one) are required to | |
1094 | * have even length. Make the fragmentation code | |
1095 | * simpler by stripping LSB should someone try to use | |
1096 | * odd threshold value. | |
1097 | */ | |
1098 | frag_threshold &= ~0x1; | |
1099 | } | |
1100 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
1101 | } | |
1102 | ||
1103 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1104 | rts_threshold = nla_get_u32( | |
1105 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1106 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1107 | } | |
1108 | ||
81077e82 LT |
1109 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1110 | coverage_class = nla_get_u8( | |
1111 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1112 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1113 | } | |
1114 | ||
b9a5f8ca JM |
1115 | if (changed) { |
1116 | u8 old_retry_short, old_retry_long; | |
1117 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1118 | u8 old_coverage_class; |
b9a5f8ca JM |
1119 | |
1120 | if (!rdev->ops->set_wiphy_params) { | |
1121 | result = -EOPNOTSUPP; | |
1122 | goto bad_res; | |
1123 | } | |
1124 | ||
1125 | old_retry_short = rdev->wiphy.retry_short; | |
1126 | old_retry_long = rdev->wiphy.retry_long; | |
1127 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1128 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1129 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1130 | |
1131 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1132 | rdev->wiphy.retry_short = retry_short; | |
1133 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1134 | rdev->wiphy.retry_long = retry_long; | |
1135 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1136 | rdev->wiphy.frag_threshold = frag_threshold; | |
1137 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1138 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1139 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1140 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
1141 | |
1142 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
1143 | if (result) { | |
1144 | rdev->wiphy.retry_short = old_retry_short; | |
1145 | rdev->wiphy.retry_long = old_retry_long; | |
1146 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1147 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1148 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1149 | } |
1150 | } | |
72bdcf34 | 1151 | |
306d6112 | 1152 | bad_res: |
4bbf4d56 | 1153 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1154 | if (netdev) |
1155 | dev_put(netdev); | |
55682965 JB |
1156 | return result; |
1157 | } | |
1158 | ||
1159 | ||
1160 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 1161 | struct cfg80211_registered_device *rdev, |
55682965 JB |
1162 | struct net_device *dev) |
1163 | { | |
1164 | void *hdr; | |
1165 | ||
1166 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
1167 | if (!hdr) | |
1168 | return -1; | |
1169 | ||
1170 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 1171 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 1172 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 1173 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
f5ea9120 JB |
1174 | |
1175 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, | |
1176 | rdev->devlist_generation ^ | |
1177 | (cfg80211_rdev_list_generation << 2)); | |
1178 | ||
55682965 JB |
1179 | return genlmsg_end(msg, hdr); |
1180 | ||
1181 | nla_put_failure: | |
bc3ed28c TG |
1182 | genlmsg_cancel(msg, hdr); |
1183 | return -EMSGSIZE; | |
55682965 JB |
1184 | } |
1185 | ||
1186 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1187 | { | |
1188 | int wp_idx = 0; | |
1189 | int if_idx = 0; | |
1190 | int wp_start = cb->args[0]; | |
1191 | int if_start = cb->args[1]; | |
f5ea9120 | 1192 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1193 | struct wireless_dev *wdev; |
1194 | ||
a1794390 | 1195 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1196 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1197 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1198 | continue; |
bba95fef JB |
1199 | if (wp_idx < wp_start) { |
1200 | wp_idx++; | |
55682965 | 1201 | continue; |
bba95fef | 1202 | } |
55682965 JB |
1203 | if_idx = 0; |
1204 | ||
f5ea9120 JB |
1205 | mutex_lock(&rdev->devlist_mtx); |
1206 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
1207 | if (if_idx < if_start) { |
1208 | if_idx++; | |
55682965 | 1209 | continue; |
bba95fef | 1210 | } |
55682965 JB |
1211 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
1212 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
1213 | rdev, wdev->netdev) < 0) { |
1214 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
1215 | goto out; |
1216 | } | |
1217 | if_idx++; | |
55682965 | 1218 | } |
f5ea9120 | 1219 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1220 | |
1221 | wp_idx++; | |
55682965 | 1222 | } |
bba95fef | 1223 | out: |
a1794390 | 1224 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1225 | |
1226 | cb->args[0] = wp_idx; | |
1227 | cb->args[1] = if_idx; | |
1228 | ||
1229 | return skb->len; | |
1230 | } | |
1231 | ||
1232 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1233 | { | |
1234 | struct sk_buff *msg; | |
4c476991 JB |
1235 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
1236 | struct net_device *netdev = info->user_ptr[1]; | |
55682965 | 1237 | |
fd2120ca | 1238 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1239 | if (!msg) |
4c476991 | 1240 | return -ENOMEM; |
55682965 | 1241 | |
d726405a | 1242 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
4c476991 JB |
1243 | dev, netdev) < 0) { |
1244 | nlmsg_free(msg); | |
1245 | return -ENOBUFS; | |
1246 | } | |
55682965 | 1247 | |
134e6375 | 1248 | return genlmsg_reply(msg, info); |
55682965 JB |
1249 | } |
1250 | ||
66f7ac50 MW |
1251 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1252 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1253 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1254 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1255 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1256 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1257 | }; | |
1258 | ||
1259 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1260 | { | |
1261 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1262 | int flag; | |
1263 | ||
1264 | *mntrflags = 0; | |
1265 | ||
1266 | if (!nla) | |
1267 | return -EINVAL; | |
1268 | ||
1269 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1270 | nla, mntr_flags_policy)) | |
1271 | return -EINVAL; | |
1272 | ||
1273 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1274 | if (flags[flag]) | |
1275 | *mntrflags |= (1<<flag); | |
1276 | ||
1277 | return 0; | |
1278 | } | |
1279 | ||
9bc383de | 1280 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1281 | struct net_device *netdev, u8 use_4addr, |
1282 | enum nl80211_iftype iftype) | |
9bc383de | 1283 | { |
ad4bb6f8 | 1284 | if (!use_4addr) { |
f350a0a8 | 1285 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 1286 | return -EBUSY; |
9bc383de | 1287 | return 0; |
ad4bb6f8 | 1288 | } |
9bc383de JB |
1289 | |
1290 | switch (iftype) { | |
1291 | case NL80211_IFTYPE_AP_VLAN: | |
1292 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1293 | return 0; | |
1294 | break; | |
1295 | case NL80211_IFTYPE_STATION: | |
1296 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1297 | return 0; | |
1298 | break; | |
1299 | default: | |
1300 | break; | |
1301 | } | |
1302 | ||
1303 | return -EOPNOTSUPP; | |
1304 | } | |
1305 | ||
55682965 JB |
1306 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1307 | { | |
4c476991 | 1308 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1309 | struct vif_params params; |
e36d56b6 | 1310 | int err; |
04a773ad | 1311 | enum nl80211_iftype otype, ntype; |
4c476991 | 1312 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 1313 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1314 | bool change = false; |
55682965 | 1315 | |
2ec600d6 LCC |
1316 | memset(¶ms, 0, sizeof(params)); |
1317 | ||
04a773ad | 1318 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1319 | |
723b038d | 1320 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1321 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1322 | if (otype != ntype) |
ac7f9cfa | 1323 | change = true; |
4c476991 JB |
1324 | if (ntype > NL80211_IFTYPE_MAX) |
1325 | return -EINVAL; | |
723b038d JB |
1326 | } |
1327 | ||
92ffe055 | 1328 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
29cbe68c JB |
1329 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
1330 | ||
4c476991 JB |
1331 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
1332 | return -EINVAL; | |
29cbe68c JB |
1333 | if (netif_running(dev)) |
1334 | return -EBUSY; | |
1335 | ||
1336 | wdev_lock(wdev); | |
1337 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
1338 | IEEE80211_MAX_MESH_ID_LEN); | |
1339 | wdev->mesh_id_up_len = | |
1340 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1341 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
1342 | wdev->mesh_id_up_len); | |
1343 | wdev_unlock(wdev); | |
2ec600d6 LCC |
1344 | } |
1345 | ||
8b787643 FF |
1346 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1347 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1348 | change = true; | |
ad4bb6f8 | 1349 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 1350 | if (err) |
4c476991 | 1351 | return err; |
8b787643 FF |
1352 | } else { |
1353 | params.use_4addr = -1; | |
1354 | } | |
1355 | ||
92ffe055 | 1356 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
1357 | if (ntype != NL80211_IFTYPE_MONITOR) |
1358 | return -EINVAL; | |
92ffe055 JB |
1359 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
1360 | &_flags); | |
ac7f9cfa | 1361 | if (err) |
4c476991 | 1362 | return err; |
ac7f9cfa JB |
1363 | |
1364 | flags = &_flags; | |
1365 | change = true; | |
92ffe055 | 1366 | } |
3b85875a | 1367 | |
ac7f9cfa | 1368 | if (change) |
3d54d255 | 1369 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1370 | else |
1371 | err = 0; | |
60719ffd | 1372 | |
9bc383de JB |
1373 | if (!err && params.use_4addr != -1) |
1374 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1375 | ||
55682965 JB |
1376 | return err; |
1377 | } | |
1378 | ||
1379 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1380 | { | |
4c476991 | 1381 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1382 | struct vif_params params; |
f9e10ce4 | 1383 | struct net_device *dev; |
55682965 JB |
1384 | int err; |
1385 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1386 | u32 flags; |
55682965 | 1387 | |
2ec600d6 LCC |
1388 | memset(¶ms, 0, sizeof(params)); |
1389 | ||
55682965 JB |
1390 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1391 | return -EINVAL; | |
1392 | ||
1393 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1394 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1395 | if (type > NL80211_IFTYPE_MAX) | |
1396 | return -EINVAL; | |
1397 | } | |
1398 | ||
79c97e97 | 1399 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
1400 | !(rdev->wiphy.interface_modes & (1 << type))) |
1401 | return -EOPNOTSUPP; | |
55682965 | 1402 | |
9bc383de | 1403 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1404 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1405 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 1406 | if (err) |
4c476991 | 1407 | return err; |
9bc383de | 1408 | } |
8b787643 | 1409 | |
66f7ac50 MW |
1410 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1411 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1412 | &flags); | |
f9e10ce4 | 1413 | dev = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1414 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1415 | type, err ? NULL : &flags, ¶ms); |
f9e10ce4 JB |
1416 | if (IS_ERR(dev)) |
1417 | return PTR_ERR(dev); | |
2ec600d6 | 1418 | |
29cbe68c JB |
1419 | if (type == NL80211_IFTYPE_MESH_POINT && |
1420 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1421 | struct wireless_dev *wdev = dev->ieee80211_ptr; | |
1422 | ||
1423 | wdev_lock(wdev); | |
1424 | BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != | |
1425 | IEEE80211_MAX_MESH_ID_LEN); | |
1426 | wdev->mesh_id_up_len = | |
1427 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1428 | memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
1429 | wdev->mesh_id_up_len); | |
1430 | wdev_unlock(wdev); | |
1431 | } | |
1432 | ||
f9e10ce4 | 1433 | return 0; |
55682965 JB |
1434 | } |
1435 | ||
1436 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1437 | { | |
4c476991 JB |
1438 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1439 | struct net_device *dev = info->user_ptr[1]; | |
55682965 | 1440 | |
4c476991 JB |
1441 | if (!rdev->ops->del_virtual_intf) |
1442 | return -EOPNOTSUPP; | |
55682965 | 1443 | |
4c476991 | 1444 | return rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1445 | } |
1446 | ||
41ade00f JB |
1447 | struct get_key_cookie { |
1448 | struct sk_buff *msg; | |
1449 | int error; | |
b9454e83 | 1450 | int idx; |
41ade00f JB |
1451 | }; |
1452 | ||
1453 | static void get_key_callback(void *c, struct key_params *params) | |
1454 | { | |
b9454e83 | 1455 | struct nlattr *key; |
41ade00f JB |
1456 | struct get_key_cookie *cookie = c; |
1457 | ||
1458 | if (params->key) | |
1459 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1460 | params->key_len, params->key); | |
1461 | ||
1462 | if (params->seq) | |
1463 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1464 | params->seq_len, params->seq); | |
1465 | ||
1466 | if (params->cipher) | |
1467 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1468 | params->cipher); | |
1469 | ||
b9454e83 JB |
1470 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1471 | if (!key) | |
1472 | goto nla_put_failure; | |
1473 | ||
1474 | if (params->key) | |
1475 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1476 | params->key_len, params->key); | |
1477 | ||
1478 | if (params->seq) | |
1479 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1480 | params->seq_len, params->seq); | |
1481 | ||
1482 | if (params->cipher) | |
1483 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1484 | params->cipher); | |
1485 | ||
1486 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1487 | ||
1488 | nla_nest_end(cookie->msg, key); | |
1489 | ||
41ade00f JB |
1490 | return; |
1491 | nla_put_failure: | |
1492 | cookie->error = 1; | |
1493 | } | |
1494 | ||
1495 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1496 | { | |
4c476991 | 1497 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 1498 | int err; |
4c476991 | 1499 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 1500 | u8 key_idx = 0; |
e31b8213 JB |
1501 | const u8 *mac_addr = NULL; |
1502 | bool pairwise; | |
41ade00f JB |
1503 | struct get_key_cookie cookie = { |
1504 | .error = 0, | |
1505 | }; | |
1506 | void *hdr; | |
1507 | struct sk_buff *msg; | |
1508 | ||
1509 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1510 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1511 | ||
3cfcf6ac | 1512 | if (key_idx > 5) |
41ade00f JB |
1513 | return -EINVAL; |
1514 | ||
1515 | if (info->attrs[NL80211_ATTR_MAC]) | |
1516 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1517 | ||
e31b8213 JB |
1518 | pairwise = !!mac_addr; |
1519 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
1520 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
1521 | if (kt >= NUM_NL80211_KEYTYPES) | |
1522 | return -EINVAL; | |
1523 | if (kt != NL80211_KEYTYPE_GROUP && | |
1524 | kt != NL80211_KEYTYPE_PAIRWISE) | |
1525 | return -EINVAL; | |
1526 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
1527 | } | |
1528 | ||
4c476991 JB |
1529 | if (!rdev->ops->get_key) |
1530 | return -EOPNOTSUPP; | |
41ade00f | 1531 | |
fd2120ca | 1532 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
1533 | if (!msg) |
1534 | return -ENOMEM; | |
41ade00f JB |
1535 | |
1536 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1537 | NL80211_CMD_NEW_KEY); | |
4c476991 JB |
1538 | if (IS_ERR(hdr)) |
1539 | return PTR_ERR(hdr); | |
41ade00f JB |
1540 | |
1541 | cookie.msg = msg; | |
b9454e83 | 1542 | cookie.idx = key_idx; |
41ade00f JB |
1543 | |
1544 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1545 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1546 | if (mac_addr) | |
1547 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1548 | ||
e31b8213 JB |
1549 | if (pairwise && mac_addr && |
1550 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
1551 | return -ENOENT; | |
1552 | ||
1553 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise, | |
1554 | mac_addr, &cookie, get_key_callback); | |
41ade00f JB |
1555 | |
1556 | if (err) | |
6c95e2a2 | 1557 | goto free_msg; |
41ade00f JB |
1558 | |
1559 | if (cookie.error) | |
1560 | goto nla_put_failure; | |
1561 | ||
1562 | genlmsg_end(msg, hdr); | |
4c476991 | 1563 | return genlmsg_reply(msg, info); |
41ade00f JB |
1564 | |
1565 | nla_put_failure: | |
1566 | err = -ENOBUFS; | |
6c95e2a2 | 1567 | free_msg: |
41ade00f | 1568 | nlmsg_free(msg); |
41ade00f JB |
1569 | return err; |
1570 | } | |
1571 | ||
1572 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1573 | { | |
4c476991 | 1574 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 1575 | struct key_parse key; |
41ade00f | 1576 | int err; |
4c476991 | 1577 | struct net_device *dev = info->user_ptr[1]; |
3cfcf6ac JM |
1578 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1579 | u8 key_index); | |
41ade00f | 1580 | |
b9454e83 JB |
1581 | err = nl80211_parse_key(info, &key); |
1582 | if (err) | |
1583 | return err; | |
41ade00f | 1584 | |
b9454e83 | 1585 | if (key.idx < 0) |
41ade00f JB |
1586 | return -EINVAL; |
1587 | ||
b9454e83 JB |
1588 | /* only support setting default key */ |
1589 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1590 | return -EINVAL; |
1591 | ||
b9454e83 | 1592 | if (key.def) |
79c97e97 | 1593 | func = rdev->ops->set_default_key; |
3cfcf6ac | 1594 | else |
79c97e97 | 1595 | func = rdev->ops->set_default_mgmt_key; |
3cfcf6ac | 1596 | |
4c476991 JB |
1597 | if (!func) |
1598 | return -EOPNOTSUPP; | |
41ade00f | 1599 | |
fffd0934 JB |
1600 | wdev_lock(dev->ieee80211_ptr); |
1601 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1602 | if (!err) | |
1603 | err = func(&rdev->wiphy, dev, key.idx); | |
1604 | ||
3d23e349 | 1605 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1606 | if (!err) { |
79c97e97 | 1607 | if (func == rdev->ops->set_default_key) |
b9454e83 | 1608 | dev->ieee80211_ptr->wext.default_key = key.idx; |
08645126 | 1609 | else |
b9454e83 | 1610 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
08645126 JB |
1611 | } |
1612 | #endif | |
fffd0934 | 1613 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 1614 | |
41ade00f JB |
1615 | return err; |
1616 | } | |
1617 | ||
1618 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1619 | { | |
4c476991 | 1620 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 1621 | int err; |
4c476991 | 1622 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 1623 | struct key_parse key; |
e31b8213 | 1624 | const u8 *mac_addr = NULL; |
41ade00f | 1625 | |
b9454e83 JB |
1626 | err = nl80211_parse_key(info, &key); |
1627 | if (err) | |
1628 | return err; | |
41ade00f | 1629 | |
b9454e83 | 1630 | if (!key.p.key) |
41ade00f JB |
1631 | return -EINVAL; |
1632 | ||
41ade00f JB |
1633 | if (info->attrs[NL80211_ATTR_MAC]) |
1634 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1635 | ||
e31b8213 JB |
1636 | if (key.type == -1) { |
1637 | if (mac_addr) | |
1638 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
1639 | else | |
1640 | key.type = NL80211_KEYTYPE_GROUP; | |
1641 | } | |
1642 | ||
1643 | /* for now */ | |
1644 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
1645 | key.type != NL80211_KEYTYPE_GROUP) | |
1646 | return -EINVAL; | |
1647 | ||
4c476991 JB |
1648 | if (!rdev->ops->add_key) |
1649 | return -EOPNOTSUPP; | |
25e47c18 | 1650 | |
e31b8213 JB |
1651 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
1652 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
1653 | mac_addr)) | |
4c476991 | 1654 | return -EINVAL; |
41ade00f | 1655 | |
fffd0934 JB |
1656 | wdev_lock(dev->ieee80211_ptr); |
1657 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1658 | if (!err) | |
1659 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
e31b8213 | 1660 | key.type == NL80211_KEYTYPE_PAIRWISE, |
fffd0934 JB |
1661 | mac_addr, &key.p); |
1662 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f | 1663 | |
41ade00f JB |
1664 | return err; |
1665 | } | |
1666 | ||
1667 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1668 | { | |
4c476991 | 1669 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 1670 | int err; |
4c476991 | 1671 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 1672 | u8 *mac_addr = NULL; |
b9454e83 | 1673 | struct key_parse key; |
41ade00f | 1674 | |
b9454e83 JB |
1675 | err = nl80211_parse_key(info, &key); |
1676 | if (err) | |
1677 | return err; | |
41ade00f JB |
1678 | |
1679 | if (info->attrs[NL80211_ATTR_MAC]) | |
1680 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1681 | ||
e31b8213 JB |
1682 | if (key.type == -1) { |
1683 | if (mac_addr) | |
1684 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
1685 | else | |
1686 | key.type = NL80211_KEYTYPE_GROUP; | |
1687 | } | |
1688 | ||
1689 | /* for now */ | |
1690 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
1691 | key.type != NL80211_KEYTYPE_GROUP) | |
1692 | return -EINVAL; | |
1693 | ||
4c476991 JB |
1694 | if (!rdev->ops->del_key) |
1695 | return -EOPNOTSUPP; | |
41ade00f | 1696 | |
fffd0934 JB |
1697 | wdev_lock(dev->ieee80211_ptr); |
1698 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 JB |
1699 | |
1700 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && | |
1701 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
1702 | err = -ENOENT; | |
1703 | ||
fffd0934 | 1704 | if (!err) |
e31b8213 JB |
1705 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, |
1706 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
1707 | mac_addr); | |
41ade00f | 1708 | |
3d23e349 | 1709 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1710 | if (!err) { |
b9454e83 | 1711 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 1712 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 1713 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
1714 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
1715 | } | |
1716 | #endif | |
fffd0934 | 1717 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 1718 | |
41ade00f JB |
1719 | return err; |
1720 | } | |
1721 | ||
ed1b6cc7 JB |
1722 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1723 | { | |
1724 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1725 | struct beacon_parameters *info); | |
4c476991 JB |
1726 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1727 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 JB |
1728 | struct beacon_parameters params; |
1729 | int haveinfo = 0; | |
1730 | ||
f4a11bb0 JB |
1731 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1732 | return -EINVAL; | |
1733 | ||
074ac8df | 1734 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
1735 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
1736 | return -EOPNOTSUPP; | |
eec60b03 | 1737 | |
ed1b6cc7 JB |
1738 | switch (info->genlhdr->cmd) { |
1739 | case NL80211_CMD_NEW_BEACON: | |
1740 | /* these are required for NEW_BEACON */ | |
1741 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1742 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
4c476991 JB |
1743 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) |
1744 | return -EINVAL; | |
ed1b6cc7 | 1745 | |
79c97e97 | 1746 | call = rdev->ops->add_beacon; |
ed1b6cc7 JB |
1747 | break; |
1748 | case NL80211_CMD_SET_BEACON: | |
79c97e97 | 1749 | call = rdev->ops->set_beacon; |
ed1b6cc7 JB |
1750 | break; |
1751 | default: | |
1752 | WARN_ON(1); | |
4c476991 | 1753 | return -EOPNOTSUPP; |
ed1b6cc7 JB |
1754 | } |
1755 | ||
4c476991 JB |
1756 | if (!call) |
1757 | return -EOPNOTSUPP; | |
ed1b6cc7 JB |
1758 | |
1759 | memset(¶ms, 0, sizeof(params)); | |
1760 | ||
1761 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1762 | params.interval = | |
1763 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1764 | haveinfo = 1; | |
1765 | } | |
1766 | ||
1767 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1768 | params.dtim_period = | |
1769 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1770 | haveinfo = 1; | |
1771 | } | |
1772 | ||
1773 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1774 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1775 | params.head_len = | |
1776 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1777 | haveinfo = 1; | |
1778 | } | |
1779 | ||
1780 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1781 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1782 | params.tail_len = | |
1783 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1784 | haveinfo = 1; | |
1785 | } | |
1786 | ||
4c476991 JB |
1787 | if (!haveinfo) |
1788 | return -EINVAL; | |
3b85875a | 1789 | |
4c476991 | 1790 | return call(&rdev->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1791 | } |
1792 | ||
1793 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1794 | { | |
4c476991 JB |
1795 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1796 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 | 1797 | |
4c476991 JB |
1798 | if (!rdev->ops->del_beacon) |
1799 | return -EOPNOTSUPP; | |
ed1b6cc7 | 1800 | |
074ac8df | 1801 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
1802 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
1803 | return -EOPNOTSUPP; | |
3b85875a | 1804 | |
4c476991 | 1805 | return rdev->ops->del_beacon(&rdev->wiphy, dev); |
ed1b6cc7 JB |
1806 | } |
1807 | ||
5727ef1b JB |
1808 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1809 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1810 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1811 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1812 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1813 | }; |
1814 | ||
eccb8e8f JB |
1815 | static int parse_station_flags(struct genl_info *info, |
1816 | struct station_parameters *params) | |
5727ef1b JB |
1817 | { |
1818 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1819 | struct nlattr *nla; |
5727ef1b JB |
1820 | int flag; |
1821 | ||
eccb8e8f JB |
1822 | /* |
1823 | * Try parsing the new attribute first so userspace | |
1824 | * can specify both for older kernels. | |
1825 | */ | |
1826 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1827 | if (nla) { | |
1828 | struct nl80211_sta_flag_update *sta_flags; | |
1829 | ||
1830 | sta_flags = nla_data(nla); | |
1831 | params->sta_flags_mask = sta_flags->mask; | |
1832 | params->sta_flags_set = sta_flags->set; | |
1833 | if ((params->sta_flags_mask | | |
1834 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1835 | return -EINVAL; | |
1836 | return 0; | |
1837 | } | |
1838 | ||
1839 | /* if present, parse the old attribute */ | |
5727ef1b | 1840 | |
eccb8e8f | 1841 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1842 | if (!nla) |
1843 | return 0; | |
1844 | ||
1845 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1846 | nla, sta_flags_policy)) | |
1847 | return -EINVAL; | |
1848 | ||
eccb8e8f JB |
1849 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1850 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1851 | |
1852 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1853 | if (flags[flag]) | |
eccb8e8f | 1854 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1855 | |
1856 | return 0; | |
1857 | } | |
1858 | ||
fd5b74dc JB |
1859 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1860 | int flags, struct net_device *dev, | |
98b62183 | 1861 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1862 | { |
1863 | void *hdr; | |
420e7fab HR |
1864 | struct nlattr *sinfoattr, *txrate; |
1865 | u16 bitrate; | |
fd5b74dc JB |
1866 | |
1867 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1868 | if (!hdr) | |
1869 | return -1; | |
1870 | ||
1871 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1872 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1873 | ||
f5ea9120 JB |
1874 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation); |
1875 | ||
2ec600d6 LCC |
1876 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1877 | if (!sinfoattr) | |
fd5b74dc | 1878 | goto nla_put_failure; |
2ec600d6 LCC |
1879 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1880 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1881 | sinfo->inactive_time); | |
1882 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1883 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1884 | sinfo->rx_bytes); | |
1885 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1886 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1887 | sinfo->tx_bytes); | |
1888 | if (sinfo->filled & STATION_INFO_LLID) | |
1889 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1890 | sinfo->llid); | |
1891 | if (sinfo->filled & STATION_INFO_PLID) | |
1892 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1893 | sinfo->plid); | |
1894 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1895 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1896 | sinfo->plink_state); | |
420e7fab HR |
1897 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1898 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1899 | sinfo->signal); | |
541a45a1 BR |
1900 | if (sinfo->filled & STATION_INFO_SIGNAL_AVG) |
1901 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG, | |
1902 | sinfo->signal_avg); | |
420e7fab HR |
1903 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { |
1904 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1905 | if (!txrate) | |
1906 | goto nla_put_failure; | |
1907 | ||
254416aa JL |
1908 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
1909 | bitrate = cfg80211_calculate_bitrate(&sinfo->txrate); | |
420e7fab HR |
1910 | if (bitrate > 0) |
1911 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1912 | |
420e7fab HR |
1913 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1914 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1915 | sinfo->txrate.mcs); | |
1916 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1917 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1918 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1919 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1920 | ||
1921 | nla_nest_end(msg, txrate); | |
1922 | } | |
98c8a60a JM |
1923 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1924 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1925 | sinfo->rx_packets); | |
1926 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1927 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1928 | sinfo->tx_packets); | |
b206b4ef BR |
1929 | if (sinfo->filled & STATION_INFO_TX_RETRIES) |
1930 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES, | |
1931 | sinfo->tx_retries); | |
1932 | if (sinfo->filled & STATION_INFO_TX_FAILED) | |
1933 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED, | |
1934 | sinfo->tx_failed); | |
2ec600d6 | 1935 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1936 | |
1937 | return genlmsg_end(msg, hdr); | |
1938 | ||
1939 | nla_put_failure: | |
bc3ed28c TG |
1940 | genlmsg_cancel(msg, hdr); |
1941 | return -EMSGSIZE; | |
fd5b74dc JB |
1942 | } |
1943 | ||
2ec600d6 | 1944 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1945 | struct netlink_callback *cb) |
2ec600d6 | 1946 | { |
2ec600d6 LCC |
1947 | struct station_info sinfo; |
1948 | struct cfg80211_registered_device *dev; | |
bba95fef | 1949 | struct net_device *netdev; |
2ec600d6 | 1950 | u8 mac_addr[ETH_ALEN]; |
bba95fef | 1951 | int sta_idx = cb->args[1]; |
2ec600d6 | 1952 | int err; |
2ec600d6 | 1953 | |
67748893 JB |
1954 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
1955 | if (err) | |
1956 | return err; | |
bba95fef JB |
1957 | |
1958 | if (!dev->ops->dump_station) { | |
eec60b03 | 1959 | err = -EOPNOTSUPP; |
bba95fef JB |
1960 | goto out_err; |
1961 | } | |
1962 | ||
bba95fef JB |
1963 | while (1) { |
1964 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1965 | mac_addr, &sinfo); | |
1966 | if (err == -ENOENT) | |
1967 | break; | |
1968 | if (err) | |
3b85875a | 1969 | goto out_err; |
bba95fef JB |
1970 | |
1971 | if (nl80211_send_station(skb, | |
1972 | NETLINK_CB(cb->skb).pid, | |
1973 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1974 | netdev, mac_addr, | |
1975 | &sinfo) < 0) | |
1976 | goto out; | |
1977 | ||
1978 | sta_idx++; | |
1979 | } | |
1980 | ||
1981 | ||
1982 | out: | |
1983 | cb->args[1] = sta_idx; | |
1984 | err = skb->len; | |
bba95fef | 1985 | out_err: |
67748893 | 1986 | nl80211_finish_netdev_dump(dev); |
bba95fef JB |
1987 | |
1988 | return err; | |
2ec600d6 | 1989 | } |
fd5b74dc | 1990 | |
5727ef1b JB |
1991 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1992 | { | |
4c476991 JB |
1993 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1994 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 1995 | struct station_info sinfo; |
fd5b74dc JB |
1996 | struct sk_buff *msg; |
1997 | u8 *mac_addr = NULL; | |
4c476991 | 1998 | int err; |
fd5b74dc | 1999 | |
2ec600d6 | 2000 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
2001 | |
2002 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2003 | return -EINVAL; | |
2004 | ||
2005 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2006 | ||
4c476991 JB |
2007 | if (!rdev->ops->get_station) |
2008 | return -EOPNOTSUPP; | |
3b85875a | 2009 | |
4c476991 | 2010 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc | 2011 | if (err) |
4c476991 | 2012 | return err; |
2ec600d6 | 2013 | |
fd2120ca | 2014 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 2015 | if (!msg) |
4c476991 | 2016 | return -ENOMEM; |
fd5b74dc JB |
2017 | |
2018 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
4c476991 JB |
2019 | dev, mac_addr, &sinfo) < 0) { |
2020 | nlmsg_free(msg); | |
2021 | return -ENOBUFS; | |
2022 | } | |
3b85875a | 2023 | |
4c476991 | 2024 | return genlmsg_reply(msg, info); |
5727ef1b JB |
2025 | } |
2026 | ||
2027 | /* | |
c258d2de | 2028 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 2029 | */ |
463d0183 | 2030 | static int get_vlan(struct genl_info *info, |
5727ef1b JB |
2031 | struct cfg80211_registered_device *rdev, |
2032 | struct net_device **vlan) | |
2033 | { | |
463d0183 | 2034 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
5727ef1b JB |
2035 | *vlan = NULL; |
2036 | ||
2037 | if (vlanattr) { | |
463d0183 JB |
2038 | *vlan = dev_get_by_index(genl_info_net(info), |
2039 | nla_get_u32(vlanattr)); | |
5727ef1b JB |
2040 | if (!*vlan) |
2041 | return -ENODEV; | |
2042 | if (!(*vlan)->ieee80211_ptr) | |
2043 | return -EINVAL; | |
2044 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
2045 | return -EINVAL; | |
c258d2de FF |
2046 | if (!netif_running(*vlan)) |
2047 | return -ENETDOWN; | |
5727ef1b JB |
2048 | } |
2049 | return 0; | |
2050 | } | |
2051 | ||
2052 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
2053 | { | |
4c476991 | 2054 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2055 | int err; |
4c476991 | 2056 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2057 | struct station_parameters params; |
2058 | u8 *mac_addr = NULL; | |
2059 | ||
2060 | memset(¶ms, 0, sizeof(params)); | |
2061 | ||
2062 | params.listen_interval = -1; | |
2063 | ||
2064 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
2065 | return -EINVAL; | |
2066 | ||
2067 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2068 | return -EINVAL; | |
2069 | ||
2070 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2071 | ||
2072 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
2073 | params.supported_rates = | |
2074 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2075 | params.supported_rates_len = | |
2076 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2077 | } | |
2078 | ||
2079 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
2080 | params.listen_interval = | |
2081 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
2082 | ||
36aedc90 JM |
2083 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2084 | params.ht_capa = | |
2085 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
2086 | ||
eccb8e8f | 2087 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2088 | return -EINVAL; |
2089 | ||
2ec600d6 LCC |
2090 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
2091 | params.plink_action = | |
2092 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
2093 | ||
463d0183 | 2094 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2095 | if (err) |
034d655e | 2096 | goto out; |
a97f4424 JB |
2097 | |
2098 | /* validate settings */ | |
2099 | err = 0; | |
2100 | ||
2101 | switch (dev->ieee80211_ptr->iftype) { | |
2102 | case NL80211_IFTYPE_AP: | |
2103 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 2104 | case NL80211_IFTYPE_P2P_GO: |
a97f4424 JB |
2105 | /* disallow mesh-specific things */ |
2106 | if (params.plink_action) | |
2107 | err = -EINVAL; | |
2108 | break; | |
074ac8df | 2109 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 JB |
2110 | case NL80211_IFTYPE_STATION: |
2111 | /* disallow everything but AUTHORIZED flag */ | |
2112 | if (params.plink_action) | |
2113 | err = -EINVAL; | |
2114 | if (params.vlan) | |
2115 | err = -EINVAL; | |
2116 | if (params.supported_rates) | |
2117 | err = -EINVAL; | |
2118 | if (params.ht_capa) | |
2119 | err = -EINVAL; | |
2120 | if (params.listen_interval >= 0) | |
2121 | err = -EINVAL; | |
2122 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
2123 | err = -EINVAL; | |
2124 | break; | |
2125 | case NL80211_IFTYPE_MESH_POINT: | |
2126 | /* disallow things mesh doesn't support */ | |
2127 | if (params.vlan) | |
2128 | err = -EINVAL; | |
2129 | if (params.ht_capa) | |
2130 | err = -EINVAL; | |
2131 | if (params.listen_interval >= 0) | |
2132 | err = -EINVAL; | |
2133 | if (params.supported_rates) | |
2134 | err = -EINVAL; | |
2135 | if (params.sta_flags_mask) | |
2136 | err = -EINVAL; | |
2137 | break; | |
2138 | default: | |
2139 | err = -EINVAL; | |
034d655e JB |
2140 | } |
2141 | ||
5727ef1b JB |
2142 | if (err) |
2143 | goto out; | |
2144 | ||
79c97e97 | 2145 | if (!rdev->ops->change_station) { |
5727ef1b JB |
2146 | err = -EOPNOTSUPP; |
2147 | goto out; | |
2148 | } | |
2149 | ||
79c97e97 | 2150 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2151 | |
2152 | out: | |
2153 | if (params.vlan) | |
2154 | dev_put(params.vlan); | |
3b85875a | 2155 | |
5727ef1b JB |
2156 | return err; |
2157 | } | |
2158 | ||
2159 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
2160 | { | |
4c476991 | 2161 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2162 | int err; |
4c476991 | 2163 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2164 | struct station_parameters params; |
2165 | u8 *mac_addr = NULL; | |
2166 | ||
2167 | memset(¶ms, 0, sizeof(params)); | |
2168 | ||
2169 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2170 | return -EINVAL; | |
2171 | ||
5727ef1b JB |
2172 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
2173 | return -EINVAL; | |
2174 | ||
2175 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
2176 | return -EINVAL; | |
2177 | ||
0e956c13 TLSC |
2178 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
2179 | return -EINVAL; | |
2180 | ||
5727ef1b JB |
2181 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2182 | params.supported_rates = | |
2183 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2184 | params.supported_rates_len = | |
2185 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2186 | params.listen_interval = | |
2187 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2188 | |
0e956c13 TLSC |
2189 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
2190 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2191 | return -EINVAL; | |
51b50fbe | 2192 | |
36aedc90 JM |
2193 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2194 | params.ht_capa = | |
2195 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2196 | |
eccb8e8f | 2197 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2198 | return -EINVAL; |
2199 | ||
0e956c13 | 2200 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
074ac8df | 2201 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
4c476991 JB |
2202 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2203 | return -EINVAL; | |
0e956c13 | 2204 | |
463d0183 | 2205 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2206 | if (err) |
e80cf853 | 2207 | goto out; |
a97f4424 JB |
2208 | |
2209 | /* validate settings */ | |
2210 | err = 0; | |
2211 | ||
79c97e97 | 2212 | if (!rdev->ops->add_station) { |
5727ef1b JB |
2213 | err = -EOPNOTSUPP; |
2214 | goto out; | |
2215 | } | |
2216 | ||
79c97e97 | 2217 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2218 | |
2219 | out: | |
2220 | if (params.vlan) | |
2221 | dev_put(params.vlan); | |
5727ef1b JB |
2222 | return err; |
2223 | } | |
2224 | ||
2225 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
2226 | { | |
4c476991 JB |
2227 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2228 | struct net_device *dev = info->user_ptr[1]; | |
5727ef1b JB |
2229 | u8 *mac_addr = NULL; |
2230 | ||
2231 | if (info->attrs[NL80211_ATTR_MAC]) | |
2232 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2233 | ||
e80cf853 | 2234 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 2235 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 2236 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
2237 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2238 | return -EINVAL; | |
5727ef1b | 2239 | |
4c476991 JB |
2240 | if (!rdev->ops->del_station) |
2241 | return -EOPNOTSUPP; | |
3b85875a | 2242 | |
4c476991 | 2243 | return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2244 | } |
2245 | ||
2ec600d6 LCC |
2246 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2247 | int flags, struct net_device *dev, | |
2248 | u8 *dst, u8 *next_hop, | |
2249 | struct mpath_info *pinfo) | |
2250 | { | |
2251 | void *hdr; | |
2252 | struct nlattr *pinfoattr; | |
2253 | ||
2254 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2255 | if (!hdr) | |
2256 | return -1; | |
2257 | ||
2258 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2259 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2260 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2261 | ||
f5ea9120 JB |
2262 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation); |
2263 | ||
2ec600d6 LCC |
2264 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
2265 | if (!pinfoattr) | |
2266 | goto nla_put_failure; | |
2267 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2268 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2269 | pinfo->frame_qlen); | |
d19b3bf6 RP |
2270 | if (pinfo->filled & MPATH_INFO_SN) |
2271 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, | |
2272 | pinfo->sn); | |
2ec600d6 LCC |
2273 | if (pinfo->filled & MPATH_INFO_METRIC) |
2274 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2275 | pinfo->metric); | |
2276 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2277 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2278 | pinfo->exptime); | |
2279 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2280 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2281 | pinfo->flags); | |
2282 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2283 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2284 | pinfo->discovery_timeout); | |
2285 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2286 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2287 | pinfo->discovery_retries); | |
2288 | ||
2289 | nla_nest_end(msg, pinfoattr); | |
2290 | ||
2291 | return genlmsg_end(msg, hdr); | |
2292 | ||
2293 | nla_put_failure: | |
bc3ed28c TG |
2294 | genlmsg_cancel(msg, hdr); |
2295 | return -EMSGSIZE; | |
2ec600d6 LCC |
2296 | } |
2297 | ||
2298 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2299 | struct netlink_callback *cb) |
2ec600d6 | 2300 | { |
2ec600d6 LCC |
2301 | struct mpath_info pinfo; |
2302 | struct cfg80211_registered_device *dev; | |
bba95fef | 2303 | struct net_device *netdev; |
2ec600d6 LCC |
2304 | u8 dst[ETH_ALEN]; |
2305 | u8 next_hop[ETH_ALEN]; | |
bba95fef | 2306 | int path_idx = cb->args[1]; |
2ec600d6 | 2307 | int err; |
2ec600d6 | 2308 | |
67748893 JB |
2309 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
2310 | if (err) | |
2311 | return err; | |
bba95fef JB |
2312 | |
2313 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2314 | err = -EOPNOTSUPP; |
bba95fef JB |
2315 | goto out_err; |
2316 | } | |
2317 | ||
eec60b03 JM |
2318 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2319 | err = -EOPNOTSUPP; | |
0448b5fc | 2320 | goto out_err; |
eec60b03 JM |
2321 | } |
2322 | ||
bba95fef JB |
2323 | while (1) { |
2324 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2325 | dst, next_hop, &pinfo); | |
2326 | if (err == -ENOENT) | |
2ec600d6 | 2327 | break; |
bba95fef | 2328 | if (err) |
3b85875a | 2329 | goto out_err; |
2ec600d6 | 2330 | |
bba95fef JB |
2331 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2332 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2333 | netdev, dst, next_hop, | |
2334 | &pinfo) < 0) | |
2335 | goto out; | |
2ec600d6 | 2336 | |
bba95fef | 2337 | path_idx++; |
2ec600d6 | 2338 | } |
2ec600d6 | 2339 | |
2ec600d6 | 2340 | |
bba95fef JB |
2341 | out: |
2342 | cb->args[1] = path_idx; | |
2343 | err = skb->len; | |
bba95fef | 2344 | out_err: |
67748893 | 2345 | nl80211_finish_netdev_dump(dev); |
bba95fef | 2346 | return err; |
2ec600d6 LCC |
2347 | } |
2348 | ||
2349 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2350 | { | |
4c476991 | 2351 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2352 | int err; |
4c476991 | 2353 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
2354 | struct mpath_info pinfo; |
2355 | struct sk_buff *msg; | |
2356 | u8 *dst = NULL; | |
2357 | u8 next_hop[ETH_ALEN]; | |
2358 | ||
2359 | memset(&pinfo, 0, sizeof(pinfo)); | |
2360 | ||
2361 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2362 | return -EINVAL; | |
2363 | ||
2364 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2365 | ||
4c476991 JB |
2366 | if (!rdev->ops->get_mpath) |
2367 | return -EOPNOTSUPP; | |
2ec600d6 | 2368 | |
4c476991 JB |
2369 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2370 | return -EOPNOTSUPP; | |
eec60b03 | 2371 | |
79c97e97 | 2372 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 | 2373 | if (err) |
4c476991 | 2374 | return err; |
2ec600d6 | 2375 | |
fd2120ca | 2376 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 2377 | if (!msg) |
4c476991 | 2378 | return -ENOMEM; |
2ec600d6 LCC |
2379 | |
2380 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
4c476991 JB |
2381 | dev, dst, next_hop, &pinfo) < 0) { |
2382 | nlmsg_free(msg); | |
2383 | return -ENOBUFS; | |
2384 | } | |
3b85875a | 2385 | |
4c476991 | 2386 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
2387 | } |
2388 | ||
2389 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2390 | { | |
4c476991 JB |
2391 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2392 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2393 | u8 *dst = NULL; |
2394 | u8 *next_hop = NULL; | |
2395 | ||
2396 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2397 | return -EINVAL; | |
2398 | ||
2399 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2400 | return -EINVAL; | |
2401 | ||
2402 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2403 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2404 | ||
4c476991 JB |
2405 | if (!rdev->ops->change_mpath) |
2406 | return -EOPNOTSUPP; | |
35a8efe1 | 2407 | |
4c476991 JB |
2408 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2409 | return -EOPNOTSUPP; | |
2ec600d6 | 2410 | |
4c476991 | 2411 | return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 | 2412 | } |
4c476991 | 2413 | |
2ec600d6 LCC |
2414 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
2415 | { | |
4c476991 JB |
2416 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2417 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2418 | u8 *dst = NULL; |
2419 | u8 *next_hop = NULL; | |
2420 | ||
2421 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2422 | return -EINVAL; | |
2423 | ||
2424 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2425 | return -EINVAL; | |
2426 | ||
2427 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2428 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2429 | ||
4c476991 JB |
2430 | if (!rdev->ops->add_mpath) |
2431 | return -EOPNOTSUPP; | |
35a8efe1 | 2432 | |
4c476991 JB |
2433 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2434 | return -EOPNOTSUPP; | |
2ec600d6 | 2435 | |
4c476991 | 2436 | return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2437 | } |
2438 | ||
2439 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2440 | { | |
4c476991 JB |
2441 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2442 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2443 | u8 *dst = NULL; |
2444 | ||
2445 | if (info->attrs[NL80211_ATTR_MAC]) | |
2446 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2447 | ||
4c476991 JB |
2448 | if (!rdev->ops->del_mpath) |
2449 | return -EOPNOTSUPP; | |
3b85875a | 2450 | |
4c476991 | 2451 | return rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
2452 | } |
2453 | ||
9f1ba906 JM |
2454 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2455 | { | |
4c476991 JB |
2456 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2457 | struct net_device *dev = info->user_ptr[1]; | |
9f1ba906 JM |
2458 | struct bss_parameters params; |
2459 | ||
2460 | memset(¶ms, 0, sizeof(params)); | |
2461 | /* default to not changing parameters */ | |
2462 | params.use_cts_prot = -1; | |
2463 | params.use_short_preamble = -1; | |
2464 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 2465 | params.ap_isolate = -1; |
50b12f59 | 2466 | params.ht_opmode = -1; |
9f1ba906 JM |
2467 | |
2468 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2469 | params.use_cts_prot = | |
2470 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2471 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2472 | params.use_short_preamble = | |
2473 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2474 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2475 | params.use_short_slot_time = | |
2476 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2477 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2478 | params.basic_rates = | |
2479 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2480 | params.basic_rates_len = | |
2481 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2482 | } | |
fd8aaaf3 FF |
2483 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
2484 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
50b12f59 HS |
2485 | if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE]) |
2486 | params.ht_opmode = | |
2487 | nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]); | |
9f1ba906 | 2488 | |
4c476991 JB |
2489 | if (!rdev->ops->change_bss) |
2490 | return -EOPNOTSUPP; | |
9f1ba906 | 2491 | |
074ac8df | 2492 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
2493 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2494 | return -EOPNOTSUPP; | |
3b85875a | 2495 | |
4c476991 | 2496 | return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
2497 | } |
2498 | ||
b54452b0 | 2499 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
2500 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
2501 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2502 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2503 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2504 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2505 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2506 | }; | |
2507 | ||
2508 | static int parse_reg_rule(struct nlattr *tb[], | |
2509 | struct ieee80211_reg_rule *reg_rule) | |
2510 | { | |
2511 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2512 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2513 | ||
2514 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2515 | return -EINVAL; | |
2516 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2517 | return -EINVAL; | |
2518 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2519 | return -EINVAL; | |
2520 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2521 | return -EINVAL; | |
2522 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2523 | return -EINVAL; | |
2524 | ||
2525 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2526 | ||
2527 | freq_range->start_freq_khz = | |
2528 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2529 | freq_range->end_freq_khz = | |
2530 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2531 | freq_range->max_bandwidth_khz = | |
2532 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2533 | ||
2534 | power_rule->max_eirp = | |
2535 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2536 | ||
2537 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2538 | power_rule->max_antenna_gain = | |
2539 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2540 | ||
2541 | return 0; | |
2542 | } | |
2543 | ||
2544 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2545 | { | |
2546 | int r; | |
2547 | char *data = NULL; | |
2548 | ||
80778f18 LR |
2549 | /* |
2550 | * You should only get this when cfg80211 hasn't yet initialized | |
2551 | * completely when built-in to the kernel right between the time | |
2552 | * window between nl80211_init() and regulatory_init(), if that is | |
2553 | * even possible. | |
2554 | */ | |
2555 | mutex_lock(&cfg80211_mutex); | |
2556 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2557 | mutex_unlock(&cfg80211_mutex); |
2558 | return -EINPROGRESS; | |
80778f18 | 2559 | } |
fe33eb39 | 2560 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2561 | |
fe33eb39 LR |
2562 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2563 | return -EINVAL; | |
b2e1b302 LR |
2564 | |
2565 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2566 | ||
fe33eb39 LR |
2567 | r = regulatory_hint_user(data); |
2568 | ||
b2e1b302 LR |
2569 | return r; |
2570 | } | |
2571 | ||
93da9cc1 | 2572 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
29cbe68c | 2573 | struct genl_info *info) |
93da9cc1 | 2574 | { |
4c476991 | 2575 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4c476991 | 2576 | struct net_device *dev = info->user_ptr[1]; |
29cbe68c JB |
2577 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
2578 | struct mesh_config cur_params; | |
2579 | int err = 0; | |
93da9cc1 | 2580 | void *hdr; |
2581 | struct nlattr *pinfoattr; | |
2582 | struct sk_buff *msg; | |
2583 | ||
29cbe68c JB |
2584 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
2585 | return -EOPNOTSUPP; | |
2586 | ||
4c476991 JB |
2587 | if (!rdev->ops->get_mesh_params) |
2588 | return -EOPNOTSUPP; | |
f3f92586 | 2589 | |
29cbe68c JB |
2590 | wdev_lock(wdev); |
2591 | /* If not connected, get default parameters */ | |
2592 | if (!wdev->mesh_id_len) | |
2593 | memcpy(&cur_params, &default_mesh_config, sizeof(cur_params)); | |
2594 | else | |
2595 | err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, | |
2596 | &cur_params); | |
2597 | wdev_unlock(wdev); | |
2598 | ||
93da9cc1 | 2599 | if (err) |
4c476991 | 2600 | return err; |
93da9cc1 | 2601 | |
2602 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2603 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
2604 | if (!msg) |
2605 | return -ENOMEM; | |
93da9cc1 | 2606 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, |
2607 | NL80211_CMD_GET_MESH_PARAMS); | |
2608 | if (!hdr) | |
2609 | goto nla_put_failure; | |
2610 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2611 | if (!pinfoattr) | |
2612 | goto nla_put_failure; | |
2613 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2614 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2615 | cur_params.dot11MeshRetryTimeout); | |
2616 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2617 | cur_params.dot11MeshConfirmTimeout); | |
2618 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2619 | cur_params.dot11MeshHoldingTimeout); | |
2620 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2621 | cur_params.dot11MeshMaxPeerLinks); | |
2622 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2623 | cur_params.dot11MeshMaxRetries); | |
2624 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2625 | cur_params.dot11MeshTTL); | |
45904f21 JC |
2626 | NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL, |
2627 | cur_params.element_ttl); | |
93da9cc1 | 2628 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, |
2629 | cur_params.auto_open_plinks); | |
2630 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2631 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2632 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2633 | cur_params.path_refresh_time); | |
2634 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2635 | cur_params.min_discovery_timeout); | |
2636 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2637 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2638 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2639 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2640 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2641 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
63c5723b RP |
2642 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
2643 | cur_params.dot11MeshHWMPRootMode); | |
93da9cc1 | 2644 | nla_nest_end(msg, pinfoattr); |
2645 | genlmsg_end(msg, hdr); | |
4c476991 | 2646 | return genlmsg_reply(msg, info); |
93da9cc1 | 2647 | |
3b85875a | 2648 | nla_put_failure: |
93da9cc1 | 2649 | genlmsg_cancel(msg, hdr); |
d080e275 | 2650 | nlmsg_free(msg); |
4c476991 | 2651 | return -ENOBUFS; |
93da9cc1 | 2652 | } |
2653 | ||
b54452b0 | 2654 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 2655 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
2656 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2657 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2658 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2659 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2660 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
45904f21 | 2661 | [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 }, |
93da9cc1 | 2662 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, |
2663 | ||
2664 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2665 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2666 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2667 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2668 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2669 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2670 | }; | |
2671 | ||
bd90fdcc JB |
2672 | static int nl80211_parse_mesh_params(struct genl_info *info, |
2673 | struct mesh_config *cfg, | |
2674 | u32 *mask_out) | |
93da9cc1 | 2675 | { |
93da9cc1 | 2676 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; |
bd90fdcc | 2677 | u32 mask = 0; |
93da9cc1 | 2678 | |
bd90fdcc JB |
2679 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ |
2680 | do {\ | |
2681 | if (table[attr_num]) {\ | |
2682 | cfg->param = nla_fn(table[attr_num]); \ | |
2683 | mask |= (1 << (attr_num - 1)); \ | |
2684 | } \ | |
2685 | } while (0);\ | |
2686 | ||
2687 | ||
2688 | if (!info->attrs[NL80211_ATTR_MESH_PARAMS]) | |
93da9cc1 | 2689 | return -EINVAL; |
2690 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
bd90fdcc JB |
2691 | info->attrs[NL80211_ATTR_MESH_PARAMS], |
2692 | nl80211_meshconf_params_policy)) | |
93da9cc1 | 2693 | return -EINVAL; |
2694 | ||
93da9cc1 | 2695 | /* This makes sure that there aren't more than 32 mesh config |
2696 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2697 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2698 | ||
2699 | /* Fill in the params struct */ | |
93da9cc1 | 2700 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, |
2701 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2702 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2703 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2704 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2705 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2706 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2707 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2708 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2709 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2710 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2711 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
45904f21 JC |
2712 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, |
2713 | mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8); | |
93da9cc1 | 2714 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, |
2715 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2716 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2717 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2718 | nla_get_u8); | |
2719 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2720 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2721 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2722 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2723 | nla_get_u16); | |
2724 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2725 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2726 | nla_get_u32); | |
2727 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2728 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2729 | nla_get_u16); | |
2730 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2731 | dot11MeshHWMPnetDiameterTraversalTime, | |
2732 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2733 | nla_get_u16); | |
63c5723b RP |
2734 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
2735 | dot11MeshHWMPRootMode, mask, | |
2736 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
2737 | nla_get_u8); | |
93da9cc1 | 2738 | |
bd90fdcc JB |
2739 | if (mask_out) |
2740 | *mask_out = mask; | |
2741 | return 0; | |
2742 | ||
2743 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2744 | } | |
2745 | ||
29cbe68c JB |
2746 | static int nl80211_update_mesh_params(struct sk_buff *skb, |
2747 | struct genl_info *info) | |
bd90fdcc JB |
2748 | { |
2749 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
2750 | struct net_device *dev = info->user_ptr[1]; | |
29cbe68c | 2751 | struct wireless_dev *wdev = dev->ieee80211_ptr; |
bd90fdcc JB |
2752 | struct mesh_config cfg; |
2753 | u32 mask; | |
2754 | int err; | |
2755 | ||
29cbe68c JB |
2756 | if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) |
2757 | return -EOPNOTSUPP; | |
2758 | ||
2759 | if (!rdev->ops->update_mesh_params) | |
bd90fdcc JB |
2760 | return -EOPNOTSUPP; |
2761 | ||
2762 | err = nl80211_parse_mesh_params(info, &cfg, &mask); | |
2763 | if (err) | |
2764 | return err; | |
2765 | ||
29cbe68c JB |
2766 | wdev_lock(wdev); |
2767 | if (!wdev->mesh_id_len) | |
2768 | err = -ENOLINK; | |
2769 | ||
2770 | if (!err) | |
2771 | err = rdev->ops->update_mesh_params(&rdev->wiphy, dev, | |
2772 | mask, &cfg); | |
2773 | ||
2774 | wdev_unlock(wdev); | |
2775 | ||
2776 | return err; | |
93da9cc1 | 2777 | } |
2778 | ||
f130347c LR |
2779 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2780 | { | |
2781 | struct sk_buff *msg; | |
2782 | void *hdr = NULL; | |
2783 | struct nlattr *nl_reg_rules; | |
2784 | unsigned int i; | |
2785 | int err = -EINVAL; | |
2786 | ||
a1794390 | 2787 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2788 | |
2789 | if (!cfg80211_regdomain) | |
2790 | goto out; | |
2791 | ||
fd2120ca | 2792 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2793 | if (!msg) { |
2794 | err = -ENOBUFS; | |
2795 | goto out; | |
2796 | } | |
2797 | ||
2798 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2799 | NL80211_CMD_GET_REG); | |
2800 | if (!hdr) | |
2801 | goto nla_put_failure; | |
2802 | ||
2803 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2804 | cfg80211_regdomain->alpha2); | |
2805 | ||
2806 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2807 | if (!nl_reg_rules) | |
2808 | goto nla_put_failure; | |
2809 | ||
2810 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2811 | struct nlattr *nl_reg_rule; | |
2812 | const struct ieee80211_reg_rule *reg_rule; | |
2813 | const struct ieee80211_freq_range *freq_range; | |
2814 | const struct ieee80211_power_rule *power_rule; | |
2815 | ||
2816 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2817 | freq_range = ®_rule->freq_range; | |
2818 | power_rule = ®_rule->power_rule; | |
2819 | ||
2820 | nl_reg_rule = nla_nest_start(msg, i); | |
2821 | if (!nl_reg_rule) | |
2822 | goto nla_put_failure; | |
2823 | ||
2824 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2825 | reg_rule->flags); | |
2826 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2827 | freq_range->start_freq_khz); | |
2828 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2829 | freq_range->end_freq_khz); | |
2830 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2831 | freq_range->max_bandwidth_khz); | |
2832 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2833 | power_rule->max_antenna_gain); | |
2834 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2835 | power_rule->max_eirp); | |
2836 | ||
2837 | nla_nest_end(msg, nl_reg_rule); | |
2838 | } | |
2839 | ||
2840 | nla_nest_end(msg, nl_reg_rules); | |
2841 | ||
2842 | genlmsg_end(msg, hdr); | |
134e6375 | 2843 | err = genlmsg_reply(msg, info); |
f130347c LR |
2844 | goto out; |
2845 | ||
2846 | nla_put_failure: | |
2847 | genlmsg_cancel(msg, hdr); | |
d080e275 | 2848 | nlmsg_free(msg); |
f130347c LR |
2849 | err = -EMSGSIZE; |
2850 | out: | |
a1794390 | 2851 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2852 | return err; |
2853 | } | |
2854 | ||
b2e1b302 LR |
2855 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2856 | { | |
2857 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2858 | struct nlattr *nl_reg_rule; | |
2859 | char *alpha2 = NULL; | |
2860 | int rem_reg_rules = 0, r = 0; | |
2861 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2862 | struct ieee80211_regdomain *rd = NULL; | |
2863 | ||
2864 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2865 | return -EINVAL; | |
2866 | ||
2867 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2868 | return -EINVAL; | |
2869 | ||
2870 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2871 | ||
2872 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2873 | rem_reg_rules) { | |
2874 | num_rules++; | |
2875 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 2876 | return -EINVAL; |
b2e1b302 LR |
2877 | } |
2878 | ||
61405e97 LR |
2879 | mutex_lock(&cfg80211_mutex); |
2880 | ||
d0e18f83 LR |
2881 | if (!reg_is_valid_request(alpha2)) { |
2882 | r = -EINVAL; | |
2883 | goto bad_reg; | |
2884 | } | |
b2e1b302 LR |
2885 | |
2886 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2887 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2888 | ||
2889 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
2890 | if (!rd) { |
2891 | r = -ENOMEM; | |
2892 | goto bad_reg; | |
2893 | } | |
b2e1b302 LR |
2894 | |
2895 | rd->n_reg_rules = num_rules; | |
2896 | rd->alpha2[0] = alpha2[0]; | |
2897 | rd->alpha2[1] = alpha2[1]; | |
2898 | ||
2899 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2900 | rem_reg_rules) { | |
2901 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2902 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2903 | reg_rule_policy); | |
2904 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2905 | if (r) | |
2906 | goto bad_reg; | |
2907 | ||
2908 | rule_idx++; | |
2909 | ||
d0e18f83 LR |
2910 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
2911 | r = -EINVAL; | |
b2e1b302 | 2912 | goto bad_reg; |
d0e18f83 | 2913 | } |
b2e1b302 LR |
2914 | } |
2915 | ||
2916 | BUG_ON(rule_idx != num_rules); | |
2917 | ||
b2e1b302 | 2918 | r = set_regdom(rd); |
61405e97 | 2919 | |
a1794390 | 2920 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 2921 | |
b2e1b302 LR |
2922 | return r; |
2923 | ||
d2372b31 | 2924 | bad_reg: |
61405e97 | 2925 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 2926 | kfree(rd); |
d0e18f83 | 2927 | return r; |
b2e1b302 LR |
2928 | } |
2929 | ||
83f5e2cf JB |
2930 | static int validate_scan_freqs(struct nlattr *freqs) |
2931 | { | |
2932 | struct nlattr *attr1, *attr2; | |
2933 | int n_channels = 0, tmp1, tmp2; | |
2934 | ||
2935 | nla_for_each_nested(attr1, freqs, tmp1) { | |
2936 | n_channels++; | |
2937 | /* | |
2938 | * Some hardware has a limited channel list for | |
2939 | * scanning, and it is pretty much nonsensical | |
2940 | * to scan for a channel twice, so disallow that | |
2941 | * and don't require drivers to check that the | |
2942 | * channel list they get isn't longer than what | |
2943 | * they can scan, as long as they can scan all | |
2944 | * the channels they registered at once. | |
2945 | */ | |
2946 | nla_for_each_nested(attr2, freqs, tmp2) | |
2947 | if (attr1 != attr2 && | |
2948 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
2949 | return 0; | |
2950 | } | |
2951 | ||
2952 | return n_channels; | |
2953 | } | |
2954 | ||
2a519311 JB |
2955 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2956 | { | |
4c476991 JB |
2957 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2958 | struct net_device *dev = info->user_ptr[1]; | |
2a519311 JB |
2959 | struct cfg80211_scan_request *request; |
2960 | struct cfg80211_ssid *ssid; | |
2961 | struct ieee80211_channel *channel; | |
2962 | struct nlattr *attr; | |
2963 | struct wiphy *wiphy; | |
83f5e2cf | 2964 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 2965 | enum ieee80211_band band; |
70692ad2 | 2966 | size_t ie_len; |
2a519311 | 2967 | |
f4a11bb0 JB |
2968 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2969 | return -EINVAL; | |
2970 | ||
79c97e97 | 2971 | wiphy = &rdev->wiphy; |
2a519311 | 2972 | |
4c476991 JB |
2973 | if (!rdev->ops->scan) |
2974 | return -EOPNOTSUPP; | |
2a519311 | 2975 | |
4c476991 JB |
2976 | if (rdev->scan_req) |
2977 | return -EBUSY; | |
2a519311 JB |
2978 | |
2979 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
2980 | n_channels = validate_scan_freqs( |
2981 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4c476991 JB |
2982 | if (!n_channels) |
2983 | return -EINVAL; | |
2a519311 | 2984 | } else { |
83f5e2cf JB |
2985 | n_channels = 0; |
2986 | ||
2a519311 JB |
2987 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
2988 | if (wiphy->bands[band]) | |
2989 | n_channels += wiphy->bands[band]->n_channels; | |
2990 | } | |
2991 | ||
2992 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2993 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2994 | n_ssids++; | |
2995 | ||
4c476991 JB |
2996 | if (n_ssids > wiphy->max_scan_ssids) |
2997 | return -EINVAL; | |
2a519311 | 2998 | |
70692ad2 JM |
2999 | if (info->attrs[NL80211_ATTR_IE]) |
3000 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3001 | else | |
3002 | ie_len = 0; | |
3003 | ||
4c476991 JB |
3004 | if (ie_len > wiphy->max_scan_ie_len) |
3005 | return -EINVAL; | |
18a83659 | 3006 | |
2a519311 JB |
3007 | request = kzalloc(sizeof(*request) |
3008 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
3009 | + sizeof(channel) * n_channels |
3010 | + ie_len, GFP_KERNEL); | |
4c476991 JB |
3011 | if (!request) |
3012 | return -ENOMEM; | |
2a519311 | 3013 | |
2a519311 | 3014 | if (n_ssids) |
5ba63533 | 3015 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 3016 | request->n_ssids = n_ssids; |
70692ad2 JM |
3017 | if (ie_len) { |
3018 | if (request->ssids) | |
3019 | request->ie = (void *)(request->ssids + n_ssids); | |
3020 | else | |
3021 | request->ie = (void *)(request->channels + n_channels); | |
3022 | } | |
2a519311 | 3023 | |
584991dc | 3024 | i = 0; |
2a519311 JB |
3025 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
3026 | /* user specified, bail out if channel not found */ | |
2a519311 | 3027 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
3028 | struct ieee80211_channel *chan; |
3029 | ||
3030 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
3031 | ||
3032 | if (!chan) { | |
2a519311 JB |
3033 | err = -EINVAL; |
3034 | goto out_free; | |
3035 | } | |
584991dc JB |
3036 | |
3037 | /* ignore disabled channels */ | |
3038 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3039 | continue; | |
3040 | ||
3041 | request->channels[i] = chan; | |
2a519311 JB |
3042 | i++; |
3043 | } | |
3044 | } else { | |
3045 | /* all channels */ | |
2a519311 JB |
3046 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
3047 | int j; | |
3048 | if (!wiphy->bands[band]) | |
3049 | continue; | |
3050 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
3051 | struct ieee80211_channel *chan; |
3052 | ||
3053 | chan = &wiphy->bands[band]->channels[j]; | |
3054 | ||
3055 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3056 | continue; | |
3057 | ||
3058 | request->channels[i] = chan; | |
2a519311 JB |
3059 | i++; |
3060 | } | |
3061 | } | |
3062 | } | |
3063 | ||
584991dc JB |
3064 | if (!i) { |
3065 | err = -EINVAL; | |
3066 | goto out_free; | |
3067 | } | |
3068 | ||
3069 | request->n_channels = i; | |
3070 | ||
2a519311 JB |
3071 | i = 0; |
3072 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
3073 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
3074 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
3075 | err = -EINVAL; | |
3076 | goto out_free; | |
3077 | } | |
3078 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
3079 | request->ssids[i].ssid_len = nla_len(attr); | |
3080 | i++; | |
3081 | } | |
3082 | } | |
3083 | ||
70692ad2 JM |
3084 | if (info->attrs[NL80211_ATTR_IE]) { |
3085 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
3086 | memcpy((void *)request->ie, |
3087 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
3088 | request->ie_len); |
3089 | } | |
3090 | ||
463d0183 | 3091 | request->dev = dev; |
79c97e97 | 3092 | request->wiphy = &rdev->wiphy; |
2a519311 | 3093 | |
79c97e97 JB |
3094 | rdev->scan_req = request; |
3095 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 3096 | |
463d0183 | 3097 | if (!err) { |
79c97e97 | 3098 | nl80211_send_scan_start(rdev, dev); |
463d0183 | 3099 | dev_hold(dev); |
4c476991 | 3100 | } else { |
2a519311 | 3101 | out_free: |
79c97e97 | 3102 | rdev->scan_req = NULL; |
2a519311 JB |
3103 | kfree(request); |
3104 | } | |
3b85875a | 3105 | |
2a519311 JB |
3106 | return err; |
3107 | } | |
3108 | ||
3109 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
3110 | struct cfg80211_registered_device *rdev, | |
48ab905d JB |
3111 | struct wireless_dev *wdev, |
3112 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 3113 | { |
48ab905d | 3114 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
3115 | void *hdr; |
3116 | struct nlattr *bss; | |
48ab905d JB |
3117 | int i; |
3118 | ||
3119 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 JB |
3120 | |
3121 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3122 | NL80211_CMD_NEW_SCAN_RESULTS); | |
3123 | if (!hdr) | |
3124 | return -1; | |
3125 | ||
f5ea9120 | 3126 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation); |
48ab905d | 3127 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
3128 | |
3129 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
3130 | if (!bss) | |
3131 | goto nla_put_failure; | |
3132 | if (!is_zero_ether_addr(res->bssid)) | |
3133 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
3134 | if (res->information_elements && res->len_information_elements) | |
3135 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
3136 | res->len_information_elements, | |
3137 | res->information_elements); | |
34a6eddb JM |
3138 | if (res->beacon_ies && res->len_beacon_ies && |
3139 | res->beacon_ies != res->information_elements) | |
3140 | NLA_PUT(msg, NL80211_BSS_BEACON_IES, | |
3141 | res->len_beacon_ies, res->beacon_ies); | |
2a519311 JB |
3142 | if (res->tsf) |
3143 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
3144 | if (res->beacon_interval) | |
3145 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
3146 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
3147 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
7c89606e HS |
3148 | NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, |
3149 | jiffies_to_msecs(jiffies - intbss->ts)); | |
2a519311 | 3150 | |
77965c97 | 3151 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
3152 | case CFG80211_SIGNAL_TYPE_MBM: |
3153 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
3154 | break; | |
3155 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
3156 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
3157 | break; | |
3158 | default: | |
3159 | break; | |
3160 | } | |
3161 | ||
48ab905d | 3162 | switch (wdev->iftype) { |
074ac8df | 3163 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d JB |
3164 | case NL80211_IFTYPE_STATION: |
3165 | if (intbss == wdev->current_bss) | |
3166 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3167 | NL80211_BSS_STATUS_ASSOCIATED); | |
3168 | else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
3169 | if (intbss != wdev->auth_bsses[i]) | |
3170 | continue; | |
3171 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3172 | NL80211_BSS_STATUS_AUTHENTICATED); | |
3173 | break; | |
3174 | } | |
3175 | break; | |
3176 | case NL80211_IFTYPE_ADHOC: | |
3177 | if (intbss == wdev->current_bss) | |
3178 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3179 | NL80211_BSS_STATUS_IBSS_JOINED); | |
3180 | break; | |
3181 | default: | |
3182 | break; | |
3183 | } | |
3184 | ||
2a519311 JB |
3185 | nla_nest_end(msg, bss); |
3186 | ||
3187 | return genlmsg_end(msg, hdr); | |
3188 | ||
3189 | nla_put_failure: | |
3190 | genlmsg_cancel(msg, hdr); | |
3191 | return -EMSGSIZE; | |
3192 | } | |
3193 | ||
3194 | static int nl80211_dump_scan(struct sk_buff *skb, | |
3195 | struct netlink_callback *cb) | |
3196 | { | |
48ab905d JB |
3197 | struct cfg80211_registered_device *rdev; |
3198 | struct net_device *dev; | |
2a519311 | 3199 | struct cfg80211_internal_bss *scan; |
48ab905d | 3200 | struct wireless_dev *wdev; |
2a519311 JB |
3201 | int start = cb->args[1], idx = 0; |
3202 | int err; | |
3203 | ||
67748893 JB |
3204 | err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev); |
3205 | if (err) | |
3206 | return err; | |
2a519311 | 3207 | |
48ab905d | 3208 | wdev = dev->ieee80211_ptr; |
2a519311 | 3209 | |
48ab905d JB |
3210 | wdev_lock(wdev); |
3211 | spin_lock_bh(&rdev->bss_lock); | |
3212 | cfg80211_bss_expire(rdev); | |
3213 | ||
3214 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
2a519311 JB |
3215 | if (++idx <= start) |
3216 | continue; | |
3217 | if (nl80211_send_bss(skb, | |
3218 | NETLINK_CB(cb->skb).pid, | |
3219 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
48ab905d | 3220 | rdev, wdev, scan) < 0) { |
2a519311 | 3221 | idx--; |
67748893 | 3222 | break; |
2a519311 JB |
3223 | } |
3224 | } | |
3225 | ||
48ab905d JB |
3226 | spin_unlock_bh(&rdev->bss_lock); |
3227 | wdev_unlock(wdev); | |
2a519311 JB |
3228 | |
3229 | cb->args[1] = idx; | |
67748893 | 3230 | nl80211_finish_netdev_dump(rdev); |
2a519311 | 3231 | |
67748893 | 3232 | return skb->len; |
2a519311 JB |
3233 | } |
3234 | ||
61fa713c HS |
3235 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
3236 | int flags, struct net_device *dev, | |
3237 | struct survey_info *survey) | |
3238 | { | |
3239 | void *hdr; | |
3240 | struct nlattr *infoattr; | |
3241 | ||
3242 | /* Survey without a channel doesn't make sense */ | |
3243 | if (!survey->channel) | |
3244 | return -EINVAL; | |
3245 | ||
3246 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3247 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
3248 | if (!hdr) | |
3249 | return -ENOMEM; | |
3250 | ||
3251 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
3252 | ||
3253 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
3254 | if (!infoattr) | |
3255 | goto nla_put_failure; | |
3256 | ||
3257 | NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
3258 | survey->channel->center_freq); | |
3259 | if (survey->filled & SURVEY_INFO_NOISE_DBM) | |
3260 | NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, | |
3261 | survey->noise); | |
17e5a808 FF |
3262 | if (survey->filled & SURVEY_INFO_IN_USE) |
3263 | NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE); | |
8610c29a FF |
3264 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME) |
3265 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME, | |
3266 | survey->channel_time); | |
3267 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) | |
3268 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, | |
3269 | survey->channel_time_busy); | |
3270 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) | |
3271 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY, | |
3272 | survey->channel_time_ext_busy); | |
3273 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) | |
3274 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX, | |
3275 | survey->channel_time_rx); | |
3276 | if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) | |
3277 | NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX, | |
3278 | survey->channel_time_tx); | |
61fa713c HS |
3279 | |
3280 | nla_nest_end(msg, infoattr); | |
3281 | ||
3282 | return genlmsg_end(msg, hdr); | |
3283 | ||
3284 | nla_put_failure: | |
3285 | genlmsg_cancel(msg, hdr); | |
3286 | return -EMSGSIZE; | |
3287 | } | |
3288 | ||
3289 | static int nl80211_dump_survey(struct sk_buff *skb, | |
3290 | struct netlink_callback *cb) | |
3291 | { | |
3292 | struct survey_info survey; | |
3293 | struct cfg80211_registered_device *dev; | |
3294 | struct net_device *netdev; | |
61fa713c HS |
3295 | int survey_idx = cb->args[1]; |
3296 | int res; | |
3297 | ||
67748893 JB |
3298 | res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
3299 | if (res) | |
3300 | return res; | |
61fa713c HS |
3301 | |
3302 | if (!dev->ops->dump_survey) { | |
3303 | res = -EOPNOTSUPP; | |
3304 | goto out_err; | |
3305 | } | |
3306 | ||
3307 | while (1) { | |
3308 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, | |
3309 | &survey); | |
3310 | if (res == -ENOENT) | |
3311 | break; | |
3312 | if (res) | |
3313 | goto out_err; | |
3314 | ||
3315 | if (nl80211_send_survey(skb, | |
3316 | NETLINK_CB(cb->skb).pid, | |
3317 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3318 | netdev, | |
3319 | &survey) < 0) | |
3320 | goto out; | |
3321 | survey_idx++; | |
3322 | } | |
3323 | ||
3324 | out: | |
3325 | cb->args[1] = survey_idx; | |
3326 | res = skb->len; | |
3327 | out_err: | |
67748893 | 3328 | nl80211_finish_netdev_dump(dev); |
61fa713c HS |
3329 | return res; |
3330 | } | |
3331 | ||
255e737e JM |
3332 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3333 | { | |
b23aa676 SO |
3334 | return auth_type <= NL80211_AUTHTYPE_MAX; |
3335 | } | |
3336 | ||
3337 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
3338 | { | |
3339 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
3340 | NL80211_WPA_VERSION_2)); | |
3341 | } | |
3342 | ||
3343 | static bool nl80211_valid_akm_suite(u32 akm) | |
3344 | { | |
3345 | return akm == WLAN_AKM_SUITE_8021X || | |
3346 | akm == WLAN_AKM_SUITE_PSK; | |
3347 | } | |
3348 | ||
3349 | static bool nl80211_valid_cipher_suite(u32 cipher) | |
3350 | { | |
3351 | return cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3352 | cipher == WLAN_CIPHER_SUITE_WEP104 || | |
3353 | cipher == WLAN_CIPHER_SUITE_TKIP || | |
3354 | cipher == WLAN_CIPHER_SUITE_CCMP || | |
3355 | cipher == WLAN_CIPHER_SUITE_AES_CMAC; | |
255e737e JM |
3356 | } |
3357 | ||
b23aa676 | 3358 | |
636a5d36 JM |
3359 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3360 | { | |
4c476991 JB |
3361 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3362 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 JB |
3363 | struct ieee80211_channel *chan; |
3364 | const u8 *bssid, *ssid, *ie = NULL; | |
3365 | int err, ssid_len, ie_len = 0; | |
3366 | enum nl80211_auth_type auth_type; | |
fffd0934 | 3367 | struct key_parse key; |
d5cdfacb | 3368 | bool local_state_change; |
636a5d36 | 3369 | |
f4a11bb0 JB |
3370 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3371 | return -EINVAL; | |
3372 | ||
3373 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3374 | return -EINVAL; | |
3375 | ||
1778092e JM |
3376 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3377 | return -EINVAL; | |
3378 | ||
19957bb3 JB |
3379 | if (!info->attrs[NL80211_ATTR_SSID]) |
3380 | return -EINVAL; | |
3381 | ||
3382 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
3383 | return -EINVAL; | |
3384 | ||
fffd0934 JB |
3385 | err = nl80211_parse_key(info, &key); |
3386 | if (err) | |
3387 | return err; | |
3388 | ||
3389 | if (key.idx >= 0) { | |
e31b8213 JB |
3390 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
3391 | return -EINVAL; | |
fffd0934 JB |
3392 | if (!key.p.key || !key.p.key_len) |
3393 | return -EINVAL; | |
3394 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
3395 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
3396 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
3397 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
3398 | return -EINVAL; | |
3399 | if (key.idx > 4) | |
3400 | return -EINVAL; | |
3401 | } else { | |
3402 | key.p.key_len = 0; | |
3403 | key.p.key = NULL; | |
3404 | } | |
3405 | ||
afea0b7a JB |
3406 | if (key.idx >= 0) { |
3407 | int i; | |
3408 | bool ok = false; | |
3409 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
3410 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
3411 | ok = true; | |
3412 | break; | |
3413 | } | |
3414 | } | |
4c476991 JB |
3415 | if (!ok) |
3416 | return -EINVAL; | |
afea0b7a JB |
3417 | } |
3418 | ||
4c476991 JB |
3419 | if (!rdev->ops->auth) |
3420 | return -EOPNOTSUPP; | |
636a5d36 | 3421 | |
074ac8df | 3422 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3423 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3424 | return -EOPNOTSUPP; | |
eec60b03 | 3425 | |
19957bb3 | 3426 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 3427 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 | 3428 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
4c476991 JB |
3429 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
3430 | return -EINVAL; | |
636a5d36 | 3431 | |
19957bb3 JB |
3432 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3433 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3434 | |
3435 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3436 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3437 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3438 | } |
3439 | ||
19957bb3 | 3440 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
4c476991 JB |
3441 | if (!nl80211_valid_auth_type(auth_type)) |
3442 | return -EINVAL; | |
636a5d36 | 3443 | |
d5cdfacb JM |
3444 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3445 | ||
4c476991 JB |
3446 | return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
3447 | ssid, ssid_len, ie, ie_len, | |
3448 | key.p.key, key.p.key_len, key.idx, | |
3449 | local_state_change); | |
636a5d36 JM |
3450 | } |
3451 | ||
c0692b8f JB |
3452 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
3453 | struct genl_info *info, | |
3dc27d25 JB |
3454 | struct cfg80211_crypto_settings *settings, |
3455 | int cipher_limit) | |
b23aa676 | 3456 | { |
c0b2bbd8 JB |
3457 | memset(settings, 0, sizeof(*settings)); |
3458 | ||
b23aa676 SO |
3459 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
3460 | ||
c0692b8f JB |
3461 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
3462 | u16 proto; | |
3463 | proto = nla_get_u16( | |
3464 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
3465 | settings->control_port_ethertype = cpu_to_be16(proto); | |
3466 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
3467 | proto != ETH_P_PAE) | |
3468 | return -EINVAL; | |
3469 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
3470 | settings->control_port_no_encrypt = true; | |
3471 | } else | |
3472 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
3473 | ||
b23aa676 SO |
3474 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
3475 | void *data; | |
3476 | int len, i; | |
3477 | ||
3478 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3479 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3480 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
3481 | ||
3482 | if (len % sizeof(u32)) | |
3483 | return -EINVAL; | |
3484 | ||
3dc27d25 | 3485 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
3486 | return -EINVAL; |
3487 | ||
3488 | memcpy(settings->ciphers_pairwise, data, len); | |
3489 | ||
3490 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3491 | if (!nl80211_valid_cipher_suite( | |
3492 | settings->ciphers_pairwise[i])) | |
3493 | return -EINVAL; | |
3494 | } | |
3495 | ||
3496 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
3497 | settings->cipher_group = | |
3498 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
3499 | if (!nl80211_valid_cipher_suite(settings->cipher_group)) | |
3500 | return -EINVAL; | |
3501 | } | |
3502 | ||
3503 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
3504 | settings->wpa_versions = | |
3505 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
3506 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
3507 | return -EINVAL; | |
3508 | } | |
3509 | ||
3510 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
3511 | void *data; | |
3512 | int len, i; | |
3513 | ||
3514 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3515 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3516 | settings->n_akm_suites = len / sizeof(u32); | |
3517 | ||
3518 | if (len % sizeof(u32)) | |
3519 | return -EINVAL; | |
3520 | ||
3521 | memcpy(settings->akm_suites, data, len); | |
3522 | ||
3523 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3524 | if (!nl80211_valid_akm_suite(settings->akm_suites[i])) | |
3525 | return -EINVAL; | |
3526 | } | |
3527 | ||
3528 | return 0; | |
3529 | } | |
3530 | ||
636a5d36 JM |
3531 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
3532 | { | |
4c476991 JB |
3533 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3534 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3535 | struct cfg80211_crypto_settings crypto; |
f444de05 | 3536 | struct ieee80211_channel *chan; |
3e5d7649 | 3537 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
3538 | int err, ssid_len, ie_len = 0; |
3539 | bool use_mfp = false; | |
636a5d36 | 3540 | |
f4a11bb0 JB |
3541 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3542 | return -EINVAL; | |
3543 | ||
3544 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
3545 | !info->attrs[NL80211_ATTR_SSID] || |
3546 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
3547 | return -EINVAL; |
3548 | ||
4c476991 JB |
3549 | if (!rdev->ops->assoc) |
3550 | return -EOPNOTSUPP; | |
636a5d36 | 3551 | |
074ac8df | 3552 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3553 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3554 | return -EOPNOTSUPP; | |
eec60b03 | 3555 | |
19957bb3 | 3556 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3557 | |
19957bb3 JB |
3558 | chan = ieee80211_get_channel(&rdev->wiphy, |
3559 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4c476991 JB |
3560 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
3561 | return -EINVAL; | |
636a5d36 | 3562 | |
19957bb3 JB |
3563 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3564 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3565 | |
3566 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3567 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3568 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3569 | } |
3570 | ||
dc6382ce | 3571 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 3572 | enum nl80211_mfp mfp = |
dc6382ce | 3573 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 3574 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 3575 | use_mfp = true; |
4c476991 JB |
3576 | else if (mfp != NL80211_MFP_NO) |
3577 | return -EINVAL; | |
dc6382ce JM |
3578 | } |
3579 | ||
3e5d7649 JB |
3580 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
3581 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
3582 | ||
c0692b8f | 3583 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); |
b23aa676 | 3584 | if (!err) |
3e5d7649 JB |
3585 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
3586 | ssid, ssid_len, ie, ie_len, use_mfp, | |
19957bb3 | 3587 | &crypto); |
636a5d36 | 3588 | |
636a5d36 JM |
3589 | return err; |
3590 | } | |
3591 | ||
3592 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3593 | { | |
4c476991 JB |
3594 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3595 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3596 | const u8 *ie = NULL, *bssid; |
4c476991 | 3597 | int ie_len = 0; |
19957bb3 | 3598 | u16 reason_code; |
d5cdfacb | 3599 | bool local_state_change; |
636a5d36 | 3600 | |
f4a11bb0 JB |
3601 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3602 | return -EINVAL; | |
3603 | ||
3604 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3605 | return -EINVAL; | |
3606 | ||
3607 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3608 | return -EINVAL; | |
3609 | ||
4c476991 JB |
3610 | if (!rdev->ops->deauth) |
3611 | return -EOPNOTSUPP; | |
636a5d36 | 3612 | |
074ac8df | 3613 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3614 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3615 | return -EOPNOTSUPP; | |
eec60b03 | 3616 | |
19957bb3 | 3617 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3618 | |
19957bb3 JB |
3619 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3620 | if (reason_code == 0) { | |
f4a11bb0 | 3621 | /* Reason Code 0 is reserved */ |
4c476991 | 3622 | return -EINVAL; |
255e737e | 3623 | } |
636a5d36 JM |
3624 | |
3625 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3626 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3627 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3628 | } |
3629 | ||
d5cdfacb JM |
3630 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3631 | ||
4c476991 JB |
3632 | return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
3633 | local_state_change); | |
636a5d36 JM |
3634 | } |
3635 | ||
3636 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3637 | { | |
4c476991 JB |
3638 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3639 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3640 | const u8 *ie = NULL, *bssid; |
4c476991 | 3641 | int ie_len = 0; |
19957bb3 | 3642 | u16 reason_code; |
d5cdfacb | 3643 | bool local_state_change; |
636a5d36 | 3644 | |
f4a11bb0 JB |
3645 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3646 | return -EINVAL; | |
3647 | ||
3648 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3649 | return -EINVAL; | |
3650 | ||
3651 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3652 | return -EINVAL; | |
3653 | ||
4c476991 JB |
3654 | if (!rdev->ops->disassoc) |
3655 | return -EOPNOTSUPP; | |
636a5d36 | 3656 | |
074ac8df | 3657 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3658 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3659 | return -EOPNOTSUPP; | |
eec60b03 | 3660 | |
19957bb3 | 3661 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3662 | |
19957bb3 JB |
3663 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3664 | if (reason_code == 0) { | |
f4a11bb0 | 3665 | /* Reason Code 0 is reserved */ |
4c476991 | 3666 | return -EINVAL; |
255e737e | 3667 | } |
636a5d36 JM |
3668 | |
3669 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3670 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3671 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3672 | } |
3673 | ||
d5cdfacb JM |
3674 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3675 | ||
4c476991 JB |
3676 | return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
3677 | local_state_change); | |
636a5d36 JM |
3678 | } |
3679 | ||
dd5b4cc7 FF |
3680 | static bool |
3681 | nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev, | |
3682 | int mcast_rate[IEEE80211_NUM_BANDS], | |
3683 | int rateval) | |
3684 | { | |
3685 | struct wiphy *wiphy = &rdev->wiphy; | |
3686 | bool found = false; | |
3687 | int band, i; | |
3688 | ||
3689 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
3690 | struct ieee80211_supported_band *sband; | |
3691 | ||
3692 | sband = wiphy->bands[band]; | |
3693 | if (!sband) | |
3694 | continue; | |
3695 | ||
3696 | for (i = 0; i < sband->n_bitrates; i++) { | |
3697 | if (sband->bitrates[i].bitrate == rateval) { | |
3698 | mcast_rate[band] = i + 1; | |
3699 | found = true; | |
3700 | break; | |
3701 | } | |
3702 | } | |
3703 | } | |
3704 | ||
3705 | return found; | |
3706 | } | |
3707 | ||
04a773ad JB |
3708 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3709 | { | |
4c476991 JB |
3710 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3711 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
3712 | struct cfg80211_ibss_params ibss; |
3713 | struct wiphy *wiphy; | |
fffd0934 | 3714 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
3715 | int err; |
3716 | ||
8e30bc55 JB |
3717 | memset(&ibss, 0, sizeof(ibss)); |
3718 | ||
04a773ad JB |
3719 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3720 | return -EINVAL; | |
3721 | ||
3722 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3723 | !info->attrs[NL80211_ATTR_SSID] || | |
3724 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3725 | return -EINVAL; | |
3726 | ||
8e30bc55 JB |
3727 | ibss.beacon_interval = 100; |
3728 | ||
3729 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
3730 | ibss.beacon_interval = | |
3731 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3732 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
3733 | return -EINVAL; | |
3734 | } | |
3735 | ||
4c476991 JB |
3736 | if (!rdev->ops->join_ibss) |
3737 | return -EOPNOTSUPP; | |
04a773ad | 3738 | |
4c476991 JB |
3739 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
3740 | return -EOPNOTSUPP; | |
04a773ad | 3741 | |
79c97e97 | 3742 | wiphy = &rdev->wiphy; |
04a773ad JB |
3743 | |
3744 | if (info->attrs[NL80211_ATTR_MAC]) | |
3745 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3746 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3747 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3748 | ||
3749 | if (info->attrs[NL80211_ATTR_IE]) { | |
3750 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3751 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3752 | } | |
3753 | ||
3754 | ibss.channel = ieee80211_get_channel(wiphy, | |
3755 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3756 | if (!ibss.channel || | |
3757 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
4c476991 JB |
3758 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) |
3759 | return -EINVAL; | |
04a773ad JB |
3760 | |
3761 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
fffd0934 JB |
3762 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
3763 | ||
fbd2c8dc TP |
3764 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
3765 | u8 *rates = | |
3766 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3767 | int n_rates = | |
3768 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3769 | struct ieee80211_supported_band *sband = | |
3770 | wiphy->bands[ibss.channel->band]; | |
3771 | int i, j; | |
3772 | ||
4c476991 JB |
3773 | if (n_rates == 0) |
3774 | return -EINVAL; | |
fbd2c8dc TP |
3775 | |
3776 | for (i = 0; i < n_rates; i++) { | |
3777 | int rate = (rates[i] & 0x7f) * 5; | |
3778 | bool found = false; | |
3779 | ||
3780 | for (j = 0; j < sband->n_bitrates; j++) { | |
3781 | if (sband->bitrates[j].bitrate == rate) { | |
3782 | found = true; | |
3783 | ibss.basic_rates |= BIT(j); | |
3784 | break; | |
3785 | } | |
3786 | } | |
4c476991 JB |
3787 | if (!found) |
3788 | return -EINVAL; | |
fbd2c8dc | 3789 | } |
fbd2c8dc | 3790 | } |
dd5b4cc7 FF |
3791 | |
3792 | if (info->attrs[NL80211_ATTR_MCAST_RATE] && | |
3793 | !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate, | |
3794 | nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]))) | |
3795 | return -EINVAL; | |
fbd2c8dc | 3796 | |
4c476991 JB |
3797 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
3798 | connkeys = nl80211_parse_connkeys(rdev, | |
3799 | info->attrs[NL80211_ATTR_KEYS]); | |
3800 | if (IS_ERR(connkeys)) | |
3801 | return PTR_ERR(connkeys); | |
3802 | } | |
04a773ad | 3803 | |
4c476991 | 3804 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 JB |
3805 | if (err) |
3806 | kfree(connkeys); | |
04a773ad JB |
3807 | return err; |
3808 | } | |
3809 | ||
3810 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
3811 | { | |
4c476991 JB |
3812 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3813 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 3814 | |
4c476991 JB |
3815 | if (!rdev->ops->leave_ibss) |
3816 | return -EOPNOTSUPP; | |
04a773ad | 3817 | |
4c476991 JB |
3818 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
3819 | return -EOPNOTSUPP; | |
04a773ad | 3820 | |
4c476991 | 3821 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
3822 | } |
3823 | ||
aff89a9b JB |
3824 | #ifdef CONFIG_NL80211_TESTMODE |
3825 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
3826 | .name = "testmode", | |
3827 | }; | |
3828 | ||
3829 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
3830 | { | |
4c476991 | 3831 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
aff89a9b JB |
3832 | int err; |
3833 | ||
3834 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
3835 | return -EINVAL; | |
3836 | ||
aff89a9b JB |
3837 | err = -EOPNOTSUPP; |
3838 | if (rdev->ops->testmode_cmd) { | |
3839 | rdev->testmode_info = info; | |
3840 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
3841 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
3842 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
3843 | rdev->testmode_info = NULL; | |
3844 | } | |
3845 | ||
aff89a9b JB |
3846 | return err; |
3847 | } | |
3848 | ||
3849 | static struct sk_buff * | |
3850 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
3851 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
3852 | { | |
3853 | struct sk_buff *skb; | |
3854 | void *hdr; | |
3855 | struct nlattr *data; | |
3856 | ||
3857 | skb = nlmsg_new(approxlen + 100, gfp); | |
3858 | if (!skb) | |
3859 | return NULL; | |
3860 | ||
3861 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
3862 | if (!hdr) { | |
3863 | kfree_skb(skb); | |
3864 | return NULL; | |
3865 | } | |
3866 | ||
3867 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3868 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
3869 | ||
3870 | ((void **)skb->cb)[0] = rdev; | |
3871 | ((void **)skb->cb)[1] = hdr; | |
3872 | ((void **)skb->cb)[2] = data; | |
3873 | ||
3874 | return skb; | |
3875 | ||
3876 | nla_put_failure: | |
3877 | kfree_skb(skb); | |
3878 | return NULL; | |
3879 | } | |
3880 | ||
3881 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
3882 | int approxlen) | |
3883 | { | |
3884 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3885 | ||
3886 | if (WARN_ON(!rdev->testmode_info)) | |
3887 | return NULL; | |
3888 | ||
3889 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
3890 | rdev->testmode_info->snd_pid, | |
3891 | rdev->testmode_info->snd_seq, | |
3892 | GFP_KERNEL); | |
3893 | } | |
3894 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
3895 | ||
3896 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
3897 | { | |
3898 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
3899 | void *hdr = ((void **)skb->cb)[1]; | |
3900 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3901 | ||
3902 | if (WARN_ON(!rdev->testmode_info)) { | |
3903 | kfree_skb(skb); | |
3904 | return -EINVAL; | |
3905 | } | |
3906 | ||
3907 | nla_nest_end(skb, data); | |
3908 | genlmsg_end(skb, hdr); | |
3909 | return genlmsg_reply(skb, rdev->testmode_info); | |
3910 | } | |
3911 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
3912 | ||
3913 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
3914 | int approxlen, gfp_t gfp) | |
3915 | { | |
3916 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3917 | ||
3918 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
3919 | } | |
3920 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
3921 | ||
3922 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
3923 | { | |
3924 | void *hdr = ((void **)skb->cb)[1]; | |
3925 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3926 | ||
3927 | nla_nest_end(skb, data); | |
3928 | genlmsg_end(skb, hdr); | |
3929 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
3930 | } | |
3931 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
3932 | #endif | |
3933 | ||
b23aa676 SO |
3934 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
3935 | { | |
4c476991 JB |
3936 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3937 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
3938 | struct cfg80211_connect_params connect; |
3939 | struct wiphy *wiphy; | |
fffd0934 | 3940 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
3941 | int err; |
3942 | ||
3943 | memset(&connect, 0, sizeof(connect)); | |
3944 | ||
3945 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
3946 | return -EINVAL; | |
3947 | ||
3948 | if (!info->attrs[NL80211_ATTR_SSID] || | |
3949 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3950 | return -EINVAL; | |
3951 | ||
3952 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
3953 | connect.auth_type = | |
3954 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
3955 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
3956 | return -EINVAL; | |
3957 | } else | |
3958 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
3959 | ||
3960 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
3961 | ||
c0692b8f | 3962 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 3963 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
3964 | if (err) |
3965 | return err; | |
b23aa676 | 3966 | |
074ac8df | 3967 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3968 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3969 | return -EOPNOTSUPP; | |
b23aa676 | 3970 | |
79c97e97 | 3971 | wiphy = &rdev->wiphy; |
b23aa676 | 3972 | |
b23aa676 SO |
3973 | if (info->attrs[NL80211_ATTR_MAC]) |
3974 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3975 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3976 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3977 | ||
3978 | if (info->attrs[NL80211_ATTR_IE]) { | |
3979 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3980 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3981 | } | |
3982 | ||
3983 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
3984 | connect.channel = | |
3985 | ieee80211_get_channel(wiphy, | |
3986 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3987 | if (!connect.channel || | |
4c476991 JB |
3988 | connect.channel->flags & IEEE80211_CHAN_DISABLED) |
3989 | return -EINVAL; | |
b23aa676 SO |
3990 | } |
3991 | ||
fffd0934 JB |
3992 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
3993 | connkeys = nl80211_parse_connkeys(rdev, | |
3994 | info->attrs[NL80211_ATTR_KEYS]); | |
4c476991 JB |
3995 | if (IS_ERR(connkeys)) |
3996 | return PTR_ERR(connkeys); | |
fffd0934 JB |
3997 | } |
3998 | ||
3999 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
fffd0934 JB |
4000 | if (err) |
4001 | kfree(connkeys); | |
b23aa676 SO |
4002 | return err; |
4003 | } | |
4004 | ||
4005 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
4006 | { | |
4c476991 JB |
4007 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4008 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
4009 | u16 reason; |
4010 | ||
4011 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
4012 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
4013 | else | |
4014 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
4015 | ||
4016 | if (reason == 0) | |
4017 | return -EINVAL; | |
4018 | ||
074ac8df | 4019 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4020 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4021 | return -EOPNOTSUPP; | |
b23aa676 | 4022 | |
4c476991 | 4023 | return cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
4024 | } |
4025 | ||
463d0183 JB |
4026 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
4027 | { | |
4c476991 | 4028 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
4029 | struct net *net; |
4030 | int err; | |
4031 | u32 pid; | |
4032 | ||
4033 | if (!info->attrs[NL80211_ATTR_PID]) | |
4034 | return -EINVAL; | |
4035 | ||
4036 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
4037 | ||
463d0183 | 4038 | net = get_net_ns_by_pid(pid); |
4c476991 JB |
4039 | if (IS_ERR(net)) |
4040 | return PTR_ERR(net); | |
463d0183 JB |
4041 | |
4042 | err = 0; | |
4043 | ||
4044 | /* check if anything to do */ | |
4c476991 JB |
4045 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
4046 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 4047 | |
463d0183 | 4048 | put_net(net); |
463d0183 JB |
4049 | return err; |
4050 | } | |
4051 | ||
67fbb16b SO |
4052 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
4053 | { | |
4c476991 | 4054 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
4055 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
4056 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 4057 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
4058 | struct cfg80211_pmksa pmksa; |
4059 | ||
4060 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
4061 | ||
4062 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4063 | return -EINVAL; | |
4064 | ||
4065 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
4066 | return -EINVAL; | |
4067 | ||
67fbb16b SO |
4068 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
4069 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4070 | ||
074ac8df | 4071 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4072 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4073 | return -EOPNOTSUPP; | |
67fbb16b SO |
4074 | |
4075 | switch (info->genlhdr->cmd) { | |
4076 | case NL80211_CMD_SET_PMKSA: | |
4077 | rdev_ops = rdev->ops->set_pmksa; | |
4078 | break; | |
4079 | case NL80211_CMD_DEL_PMKSA: | |
4080 | rdev_ops = rdev->ops->del_pmksa; | |
4081 | break; | |
4082 | default: | |
4083 | WARN_ON(1); | |
4084 | break; | |
4085 | } | |
4086 | ||
4c476991 JB |
4087 | if (!rdev_ops) |
4088 | return -EOPNOTSUPP; | |
67fbb16b | 4089 | |
4c476991 | 4090 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
4091 | } |
4092 | ||
4093 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
4094 | { | |
4c476991 JB |
4095 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4096 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 4097 | |
074ac8df | 4098 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4099 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4100 | return -EOPNOTSUPP; | |
67fbb16b | 4101 | |
4c476991 JB |
4102 | if (!rdev->ops->flush_pmksa) |
4103 | return -EOPNOTSUPP; | |
67fbb16b | 4104 | |
4c476991 | 4105 | return rdev->ops->flush_pmksa(&rdev->wiphy, dev); |
67fbb16b SO |
4106 | } |
4107 | ||
9588bbd5 JM |
4108 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
4109 | struct genl_info *info) | |
4110 | { | |
4c476991 JB |
4111 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4112 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 JM |
4113 | struct ieee80211_channel *chan; |
4114 | struct sk_buff *msg; | |
4115 | void *hdr; | |
4116 | u64 cookie; | |
4117 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
4118 | u32 freq, duration; | |
4119 | int err; | |
4120 | ||
4121 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
4122 | !info->attrs[NL80211_ATTR_DURATION]) | |
4123 | return -EINVAL; | |
4124 | ||
4125 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
4126 | ||
4127 | /* | |
4128 | * We should be on that channel for at least one jiffie, | |
4129 | * and more than 5 seconds seems excessive. | |
4130 | */ | |
4131 | if (!duration || !msecs_to_jiffies(duration) || duration > 5000) | |
4132 | return -EINVAL; | |
4133 | ||
4c476991 JB |
4134 | if (!rdev->ops->remain_on_channel) |
4135 | return -EOPNOTSUPP; | |
9588bbd5 | 4136 | |
9588bbd5 JM |
4137 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
4138 | channel_type = nla_get_u32( | |
4139 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4140 | if (channel_type != NL80211_CHAN_NO_HT && | |
4141 | channel_type != NL80211_CHAN_HT20 && | |
4142 | channel_type != NL80211_CHAN_HT40PLUS && | |
4c476991 JB |
4143 | channel_type != NL80211_CHAN_HT40MINUS) |
4144 | return -EINVAL; | |
9588bbd5 JM |
4145 | } |
4146 | ||
4147 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4148 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
4149 | if (chan == NULL) |
4150 | return -EINVAL; | |
9588bbd5 JM |
4151 | |
4152 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4153 | if (!msg) |
4154 | return -ENOMEM; | |
9588bbd5 JM |
4155 | |
4156 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4157 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
4158 | ||
4159 | if (IS_ERR(hdr)) { | |
4160 | err = PTR_ERR(hdr); | |
4161 | goto free_msg; | |
4162 | } | |
4163 | ||
4164 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
4165 | channel_type, duration, &cookie); | |
4166 | ||
4167 | if (err) | |
4168 | goto free_msg; | |
4169 | ||
4170 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4171 | ||
4172 | genlmsg_end(msg, hdr); | |
4c476991 JB |
4173 | |
4174 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
4175 | |
4176 | nla_put_failure: | |
4177 | err = -ENOBUFS; | |
4178 | free_msg: | |
4179 | nlmsg_free(msg); | |
9588bbd5 JM |
4180 | return err; |
4181 | } | |
4182 | ||
4183 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
4184 | struct genl_info *info) | |
4185 | { | |
4c476991 JB |
4186 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4187 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 | 4188 | u64 cookie; |
9588bbd5 JM |
4189 | |
4190 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
4191 | return -EINVAL; | |
4192 | ||
4c476991 JB |
4193 | if (!rdev->ops->cancel_remain_on_channel) |
4194 | return -EOPNOTSUPP; | |
9588bbd5 | 4195 | |
9588bbd5 JM |
4196 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
4197 | ||
4c476991 | 4198 | return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); |
9588bbd5 JM |
4199 | } |
4200 | ||
13ae75b1 JM |
4201 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
4202 | u8 *rates, u8 rates_len) | |
4203 | { | |
4204 | u8 i; | |
4205 | u32 mask = 0; | |
4206 | ||
4207 | for (i = 0; i < rates_len; i++) { | |
4208 | int rate = (rates[i] & 0x7f) * 5; | |
4209 | int ridx; | |
4210 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
4211 | struct ieee80211_rate *srate = | |
4212 | &sband->bitrates[ridx]; | |
4213 | if (rate == srate->bitrate) { | |
4214 | mask |= 1 << ridx; | |
4215 | break; | |
4216 | } | |
4217 | } | |
4218 | if (ridx == sband->n_bitrates) | |
4219 | return 0; /* rate not found */ | |
4220 | } | |
4221 | ||
4222 | return mask; | |
4223 | } | |
4224 | ||
b54452b0 | 4225 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
4226 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
4227 | .len = NL80211_MAX_SUPP_RATES }, | |
4228 | }; | |
4229 | ||
4230 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
4231 | struct genl_info *info) | |
4232 | { | |
4233 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 4234 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 4235 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
4236 | int rem, i; |
4237 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
4238 | struct nlattr *tx_rates; |
4239 | struct ieee80211_supported_band *sband; | |
4240 | ||
4241 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
4242 | return -EINVAL; | |
4243 | ||
4c476991 JB |
4244 | if (!rdev->ops->set_bitrate_mask) |
4245 | return -EOPNOTSUPP; | |
13ae75b1 JM |
4246 | |
4247 | memset(&mask, 0, sizeof(mask)); | |
4248 | /* Default to all rates enabled */ | |
4249 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
4250 | sband = rdev->wiphy.bands[i]; | |
4251 | mask.control[i].legacy = | |
4252 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
4253 | } | |
4254 | ||
4255 | /* | |
4256 | * The nested attribute uses enum nl80211_band as the index. This maps | |
4257 | * directly to the enum ieee80211_band values used in cfg80211. | |
4258 | */ | |
4259 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) | |
4260 | { | |
4261 | enum ieee80211_band band = nla_type(tx_rates); | |
4c476991 JB |
4262 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
4263 | return -EINVAL; | |
13ae75b1 | 4264 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
4265 | if (sband == NULL) |
4266 | return -EINVAL; | |
13ae75b1 JM |
4267 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
4268 | nla_len(tx_rates), nl80211_txattr_policy); | |
4269 | if (tb[NL80211_TXRATE_LEGACY]) { | |
4270 | mask.control[band].legacy = rateset_to_mask( | |
4271 | sband, | |
4272 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
4273 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
4c476991 JB |
4274 | if (mask.control[band].legacy == 0) |
4275 | return -EINVAL; | |
13ae75b1 JM |
4276 | } |
4277 | } | |
4278 | ||
4c476991 | 4279 | return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); |
13ae75b1 JM |
4280 | } |
4281 | ||
2e161f78 | 4282 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 4283 | { |
4c476991 JB |
4284 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4285 | struct net_device *dev = info->user_ptr[1]; | |
2e161f78 | 4286 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
4287 | |
4288 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
4289 | return -EINVAL; | |
4290 | ||
2e161f78 JB |
4291 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
4292 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 4293 | |
9d38d85d | 4294 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 4295 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
4296 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
4297 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4298 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
4c476991 JB |
4299 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4300 | return -EOPNOTSUPP; | |
026331c4 JM |
4301 | |
4302 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
4303 | if (!rdev->ops->mgmt_tx) |
4304 | return -EOPNOTSUPP; | |
026331c4 | 4305 | |
4c476991 | 4306 | return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid, |
2e161f78 | 4307 | frame_type, |
026331c4 JM |
4308 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
4309 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
4310 | } |
4311 | ||
2e161f78 | 4312 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 4313 | { |
4c476991 JB |
4314 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4315 | struct net_device *dev = info->user_ptr[1]; | |
026331c4 JM |
4316 | struct ieee80211_channel *chan; |
4317 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 4318 | bool channel_type_valid = false; |
026331c4 JM |
4319 | u32 freq; |
4320 | int err; | |
4321 | void *hdr; | |
4322 | u64 cookie; | |
4323 | struct sk_buff *msg; | |
f7ca38df JB |
4324 | unsigned int wait = 0; |
4325 | bool offchan; | |
026331c4 JM |
4326 | |
4327 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
4328 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4329 | return -EINVAL; | |
4330 | ||
4c476991 JB |
4331 | if (!rdev->ops->mgmt_tx) |
4332 | return -EOPNOTSUPP; | |
026331c4 | 4333 | |
9d38d85d | 4334 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 4335 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
4336 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
4337 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4338 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
4c476991 JB |
4339 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4340 | return -EOPNOTSUPP; | |
026331c4 | 4341 | |
f7ca38df JB |
4342 | if (info->attrs[NL80211_ATTR_DURATION]) { |
4343 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
4344 | return -EINVAL; | |
4345 | wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
4346 | } | |
4347 | ||
026331c4 JM |
4348 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
4349 | channel_type = nla_get_u32( | |
4350 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4351 | if (channel_type != NL80211_CHAN_NO_HT && | |
4352 | channel_type != NL80211_CHAN_HT20 && | |
4353 | channel_type != NL80211_CHAN_HT40PLUS && | |
4c476991 JB |
4354 | channel_type != NL80211_CHAN_HT40MINUS) |
4355 | return -EINVAL; | |
252aa631 | 4356 | channel_type_valid = true; |
026331c4 JM |
4357 | } |
4358 | ||
f7ca38df JB |
4359 | offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK]; |
4360 | ||
026331c4 JM |
4361 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); |
4362 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
4363 | if (chan == NULL) |
4364 | return -EINVAL; | |
026331c4 JM |
4365 | |
4366 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4367 | if (!msg) |
4368 | return -ENOMEM; | |
026331c4 JM |
4369 | |
4370 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2e161f78 | 4371 | NL80211_CMD_FRAME); |
026331c4 JM |
4372 | |
4373 | if (IS_ERR(hdr)) { | |
4374 | err = PTR_ERR(hdr); | |
4375 | goto free_msg; | |
4376 | } | |
f7ca38df JB |
4377 | err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type, |
4378 | channel_type_valid, wait, | |
2e161f78 JB |
4379 | nla_data(info->attrs[NL80211_ATTR_FRAME]), |
4380 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
4381 | &cookie); | |
026331c4 JM |
4382 | if (err) |
4383 | goto free_msg; | |
4384 | ||
4385 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4386 | ||
4387 | genlmsg_end(msg, hdr); | |
4c476991 | 4388 | return genlmsg_reply(msg, info); |
026331c4 JM |
4389 | |
4390 | nla_put_failure: | |
4391 | err = -ENOBUFS; | |
4392 | free_msg: | |
4393 | nlmsg_free(msg); | |
026331c4 JM |
4394 | return err; |
4395 | } | |
4396 | ||
f7ca38df JB |
4397 | static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info) |
4398 | { | |
4399 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4400 | struct net_device *dev = info->user_ptr[1]; | |
4401 | u64 cookie; | |
4402 | ||
4403 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
4404 | return -EINVAL; | |
4405 | ||
4406 | if (!rdev->ops->mgmt_tx_cancel_wait) | |
4407 | return -EOPNOTSUPP; | |
4408 | ||
4409 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && | |
4410 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && | |
4411 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && | |
4412 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4413 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
4414 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) | |
4415 | return -EOPNOTSUPP; | |
4416 | ||
4417 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
4418 | ||
4419 | return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie); | |
4420 | } | |
4421 | ||
ffb9eb3d KV |
4422 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
4423 | { | |
4c476991 | 4424 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 4425 | struct wireless_dev *wdev; |
4c476991 | 4426 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
4427 | u8 ps_state; |
4428 | bool state; | |
4429 | int err; | |
4430 | ||
4c476991 JB |
4431 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
4432 | return -EINVAL; | |
ffb9eb3d KV |
4433 | |
4434 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
4435 | ||
4c476991 JB |
4436 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
4437 | return -EINVAL; | |
ffb9eb3d KV |
4438 | |
4439 | wdev = dev->ieee80211_ptr; | |
4440 | ||
4c476991 JB |
4441 | if (!rdev->ops->set_power_mgmt) |
4442 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
4443 | |
4444 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
4445 | ||
4446 | if (state == wdev->ps) | |
4c476991 | 4447 | return 0; |
ffb9eb3d | 4448 | |
4c476991 JB |
4449 | err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state, |
4450 | wdev->ps_timeout); | |
4451 | if (!err) | |
4452 | wdev->ps = state; | |
ffb9eb3d KV |
4453 | return err; |
4454 | } | |
4455 | ||
4456 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
4457 | { | |
4c476991 | 4458 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
4459 | enum nl80211_ps_state ps_state; |
4460 | struct wireless_dev *wdev; | |
4c476991 | 4461 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
4462 | struct sk_buff *msg; |
4463 | void *hdr; | |
4464 | int err; | |
4465 | ||
ffb9eb3d KV |
4466 | wdev = dev->ieee80211_ptr; |
4467 | ||
4c476991 JB |
4468 | if (!rdev->ops->set_power_mgmt) |
4469 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
4470 | |
4471 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4472 | if (!msg) |
4473 | return -ENOMEM; | |
ffb9eb3d KV |
4474 | |
4475 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4476 | NL80211_CMD_GET_POWER_SAVE); | |
4477 | if (!hdr) { | |
4c476991 | 4478 | err = -ENOBUFS; |
ffb9eb3d KV |
4479 | goto free_msg; |
4480 | } | |
4481 | ||
4482 | if (wdev->ps) | |
4483 | ps_state = NL80211_PS_ENABLED; | |
4484 | else | |
4485 | ps_state = NL80211_PS_DISABLED; | |
4486 | ||
4487 | NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); | |
4488 | ||
4489 | genlmsg_end(msg, hdr); | |
4c476991 | 4490 | return genlmsg_reply(msg, info); |
ffb9eb3d | 4491 | |
4c476991 | 4492 | nla_put_failure: |
ffb9eb3d | 4493 | err = -ENOBUFS; |
4c476991 | 4494 | free_msg: |
ffb9eb3d | 4495 | nlmsg_free(msg); |
ffb9eb3d KV |
4496 | return err; |
4497 | } | |
4498 | ||
d6dc1a38 JO |
4499 | static struct nla_policy |
4500 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
4501 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
4502 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
4503 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
4504 | }; | |
4505 | ||
4506 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
4507 | s32 threshold, u32 hysteresis) | |
4508 | { | |
4c476991 | 4509 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
d6dc1a38 | 4510 | struct wireless_dev *wdev; |
4c476991 | 4511 | struct net_device *dev = info->user_ptr[1]; |
d6dc1a38 JO |
4512 | |
4513 | if (threshold > 0) | |
4514 | return -EINVAL; | |
4515 | ||
d6dc1a38 JO |
4516 | wdev = dev->ieee80211_ptr; |
4517 | ||
4c476991 JB |
4518 | if (!rdev->ops->set_cqm_rssi_config) |
4519 | return -EOPNOTSUPP; | |
d6dc1a38 | 4520 | |
074ac8df | 4521 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4522 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4523 | return -EOPNOTSUPP; | |
d6dc1a38 | 4524 | |
4c476991 JB |
4525 | return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, |
4526 | threshold, hysteresis); | |
d6dc1a38 JO |
4527 | } |
4528 | ||
4529 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
4530 | { | |
4531 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
4532 | struct nlattr *cqm; | |
4533 | int err; | |
4534 | ||
4535 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
4536 | if (!cqm) { | |
4537 | err = -EINVAL; | |
4538 | goto out; | |
4539 | } | |
4540 | ||
4541 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
4542 | nl80211_attr_cqm_policy); | |
4543 | if (err) | |
4544 | goto out; | |
4545 | ||
4546 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
4547 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
4548 | s32 threshold; | |
4549 | u32 hysteresis; | |
4550 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
4551 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
4552 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
4553 | } else | |
4554 | err = -EINVAL; | |
4555 | ||
4556 | out: | |
4557 | return err; | |
4558 | } | |
4559 | ||
29cbe68c JB |
4560 | static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) |
4561 | { | |
4562 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4563 | struct net_device *dev = info->user_ptr[1]; | |
4564 | struct mesh_config cfg; | |
4565 | int err; | |
4566 | ||
4567 | /* start with default */ | |
4568 | memcpy(&cfg, &default_mesh_config, sizeof(cfg)); | |
4569 | ||
4570 | if (info->attrs[NL80211_ATTR_MESH_PARAMS]) { | |
4571 | /* and parse parameters if given */ | |
4572 | err = nl80211_parse_mesh_params(info, &cfg, NULL); | |
4573 | if (err) | |
4574 | return err; | |
4575 | } | |
4576 | ||
4577 | if (!info->attrs[NL80211_ATTR_MESH_ID] || | |
4578 | !nla_len(info->attrs[NL80211_ATTR_MESH_ID])) | |
4579 | return -EINVAL; | |
4580 | ||
4581 | return cfg80211_join_mesh(rdev, dev, | |
4582 | nla_data(info->attrs[NL80211_ATTR_MESH_ID]), | |
4583 | nla_len(info->attrs[NL80211_ATTR_MESH_ID]), | |
4584 | &cfg); | |
4585 | } | |
4586 | ||
4587 | static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) | |
4588 | { | |
4589 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; | |
4590 | struct net_device *dev = info->user_ptr[1]; | |
4591 | ||
4592 | return cfg80211_leave_mesh(rdev, dev); | |
4593 | } | |
4594 | ||
4c476991 JB |
4595 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
4596 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
4597 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
4598 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
4599 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
4600 | NL80211_FLAG_CHECK_NETDEV_UP) | |
4c476991 JB |
4601 | |
4602 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
4603 | struct genl_info *info) | |
4604 | { | |
4605 | struct cfg80211_registered_device *rdev; | |
4606 | struct net_device *dev; | |
4607 | int err; | |
4608 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; | |
4609 | ||
4610 | if (rtnl) | |
4611 | rtnl_lock(); | |
4612 | ||
4613 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
4614 | rdev = cfg80211_get_dev_from_info(info); | |
4615 | if (IS_ERR(rdev)) { | |
4616 | if (rtnl) | |
4617 | rtnl_unlock(); | |
4618 | return PTR_ERR(rdev); | |
4619 | } | |
4620 | info->user_ptr[0] = rdev; | |
4621 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { | |
4622 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4623 | if (err) { | |
4624 | if (rtnl) | |
4625 | rtnl_unlock(); | |
4626 | return err; | |
4627 | } | |
41265714 JB |
4628 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && |
4629 | !netif_running(dev)) { | |
d537f5fd JB |
4630 | cfg80211_unlock_rdev(rdev); |
4631 | dev_put(dev); | |
41265714 JB |
4632 | if (rtnl) |
4633 | rtnl_unlock(); | |
4634 | return -ENETDOWN; | |
4635 | } | |
4c476991 JB |
4636 | info->user_ptr[0] = rdev; |
4637 | info->user_ptr[1] = dev; | |
4638 | } | |
4639 | ||
4640 | return 0; | |
4641 | } | |
4642 | ||
4643 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
4644 | struct genl_info *info) | |
4645 | { | |
4646 | if (info->user_ptr[0]) | |
4647 | cfg80211_unlock_rdev(info->user_ptr[0]); | |
4648 | if (info->user_ptr[1]) | |
4649 | dev_put(info->user_ptr[1]); | |
4650 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) | |
4651 | rtnl_unlock(); | |
4652 | } | |
4653 | ||
55682965 JB |
4654 | static struct genl_ops nl80211_ops[] = { |
4655 | { | |
4656 | .cmd = NL80211_CMD_GET_WIPHY, | |
4657 | .doit = nl80211_get_wiphy, | |
4658 | .dumpit = nl80211_dump_wiphy, | |
4659 | .policy = nl80211_policy, | |
4660 | /* can be retrieved by unprivileged users */ | |
4c476991 | 4661 | .internal_flags = NL80211_FLAG_NEED_WIPHY, |
55682965 JB |
4662 | }, |
4663 | { | |
4664 | .cmd = NL80211_CMD_SET_WIPHY, | |
4665 | .doit = nl80211_set_wiphy, | |
4666 | .policy = nl80211_policy, | |
4667 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 4668 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
4669 | }, |
4670 | { | |
4671 | .cmd = NL80211_CMD_GET_INTERFACE, | |
4672 | .doit = nl80211_get_interface, | |
4673 | .dumpit = nl80211_dump_interface, | |
4674 | .policy = nl80211_policy, | |
4675 | /* can be retrieved by unprivileged users */ | |
4c476991 | 4676 | .internal_flags = NL80211_FLAG_NEED_NETDEV, |
55682965 JB |
4677 | }, |
4678 | { | |
4679 | .cmd = NL80211_CMD_SET_INTERFACE, | |
4680 | .doit = nl80211_set_interface, | |
4681 | .policy = nl80211_policy, | |
4682 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4683 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4684 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
4685 | }, |
4686 | { | |
4687 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
4688 | .doit = nl80211_new_interface, | |
4689 | .policy = nl80211_policy, | |
4690 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4691 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4692 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
4693 | }, |
4694 | { | |
4695 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
4696 | .doit = nl80211_del_interface, | |
4697 | .policy = nl80211_policy, | |
41ade00f | 4698 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4699 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4700 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
4701 | }, |
4702 | { | |
4703 | .cmd = NL80211_CMD_GET_KEY, | |
4704 | .doit = nl80211_get_key, | |
4705 | .policy = nl80211_policy, | |
4706 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4707 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4708 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
4709 | }, |
4710 | { | |
4711 | .cmd = NL80211_CMD_SET_KEY, | |
4712 | .doit = nl80211_set_key, | |
4713 | .policy = nl80211_policy, | |
4714 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4715 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4716 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
4717 | }, |
4718 | { | |
4719 | .cmd = NL80211_CMD_NEW_KEY, | |
4720 | .doit = nl80211_new_key, | |
4721 | .policy = nl80211_policy, | |
4722 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4723 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4724 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
4725 | }, |
4726 | { | |
4727 | .cmd = NL80211_CMD_DEL_KEY, | |
4728 | .doit = nl80211_del_key, | |
4729 | .policy = nl80211_policy, | |
55682965 | 4730 | .flags = GENL_ADMIN_PERM, |
41265714 | 4731 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4732 | NL80211_FLAG_NEED_RTNL, |
55682965 | 4733 | }, |
ed1b6cc7 JB |
4734 | { |
4735 | .cmd = NL80211_CMD_SET_BEACON, | |
4736 | .policy = nl80211_policy, | |
4737 | .flags = GENL_ADMIN_PERM, | |
4738 | .doit = nl80211_addset_beacon, | |
4c476991 JB |
4739 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4740 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 JB |
4741 | }, |
4742 | { | |
4743 | .cmd = NL80211_CMD_NEW_BEACON, | |
4744 | .policy = nl80211_policy, | |
4745 | .flags = GENL_ADMIN_PERM, | |
4746 | .doit = nl80211_addset_beacon, | |
4c476991 JB |
4747 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4748 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 JB |
4749 | }, |
4750 | { | |
4751 | .cmd = NL80211_CMD_DEL_BEACON, | |
4752 | .policy = nl80211_policy, | |
4753 | .flags = GENL_ADMIN_PERM, | |
4754 | .doit = nl80211_del_beacon, | |
4c476991 JB |
4755 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4756 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 | 4757 | }, |
5727ef1b JB |
4758 | { |
4759 | .cmd = NL80211_CMD_GET_STATION, | |
4760 | .doit = nl80211_get_station, | |
2ec600d6 | 4761 | .dumpit = nl80211_dump_station, |
5727ef1b | 4762 | .policy = nl80211_policy, |
4c476991 JB |
4763 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4764 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
4765 | }, |
4766 | { | |
4767 | .cmd = NL80211_CMD_SET_STATION, | |
4768 | .doit = nl80211_set_station, | |
4769 | .policy = nl80211_policy, | |
4770 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4771 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4772 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
4773 | }, |
4774 | { | |
4775 | .cmd = NL80211_CMD_NEW_STATION, | |
4776 | .doit = nl80211_new_station, | |
4777 | .policy = nl80211_policy, | |
4778 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4779 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4780 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
4781 | }, |
4782 | { | |
4783 | .cmd = NL80211_CMD_DEL_STATION, | |
4784 | .doit = nl80211_del_station, | |
4785 | .policy = nl80211_policy, | |
2ec600d6 | 4786 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4787 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4788 | NL80211_FLAG_NEED_RTNL, | |
2ec600d6 LCC |
4789 | }, |
4790 | { | |
4791 | .cmd = NL80211_CMD_GET_MPATH, | |
4792 | .doit = nl80211_get_mpath, | |
4793 | .dumpit = nl80211_dump_mpath, | |
4794 | .policy = nl80211_policy, | |
4795 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4796 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4797 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4798 | }, |
4799 | { | |
4800 | .cmd = NL80211_CMD_SET_MPATH, | |
4801 | .doit = nl80211_set_mpath, | |
4802 | .policy = nl80211_policy, | |
4803 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4804 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4805 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4806 | }, |
4807 | { | |
4808 | .cmd = NL80211_CMD_NEW_MPATH, | |
4809 | .doit = nl80211_new_mpath, | |
4810 | .policy = nl80211_policy, | |
4811 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4812 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4813 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4814 | }, |
4815 | { | |
4816 | .cmd = NL80211_CMD_DEL_MPATH, | |
4817 | .doit = nl80211_del_mpath, | |
4818 | .policy = nl80211_policy, | |
9f1ba906 | 4819 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4820 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4821 | NL80211_FLAG_NEED_RTNL, | |
9f1ba906 JM |
4822 | }, |
4823 | { | |
4824 | .cmd = NL80211_CMD_SET_BSS, | |
4825 | .doit = nl80211_set_bss, | |
4826 | .policy = nl80211_policy, | |
b2e1b302 | 4827 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4828 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4829 | NL80211_FLAG_NEED_RTNL, | |
b2e1b302 | 4830 | }, |
f130347c LR |
4831 | { |
4832 | .cmd = NL80211_CMD_GET_REG, | |
4833 | .doit = nl80211_get_reg, | |
4834 | .policy = nl80211_policy, | |
4835 | /* can be retrieved by unprivileged users */ | |
4836 | }, | |
b2e1b302 LR |
4837 | { |
4838 | .cmd = NL80211_CMD_SET_REG, | |
4839 | .doit = nl80211_set_reg, | |
4840 | .policy = nl80211_policy, | |
4841 | .flags = GENL_ADMIN_PERM, | |
4842 | }, | |
4843 | { | |
4844 | .cmd = NL80211_CMD_REQ_SET_REG, | |
4845 | .doit = nl80211_req_set_reg, | |
4846 | .policy = nl80211_policy, | |
93da9cc1 | 4847 | .flags = GENL_ADMIN_PERM, |
4848 | }, | |
4849 | { | |
4850 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
4851 | .doit = nl80211_get_mesh_params, | |
4852 | .policy = nl80211_policy, | |
4853 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
4854 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4855 | NL80211_FLAG_NEED_RTNL, | |
93da9cc1 | 4856 | }, |
4857 | { | |
4858 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
29cbe68c | 4859 | .doit = nl80211_update_mesh_params, |
93da9cc1 | 4860 | .policy = nl80211_policy, |
9aed3cc1 | 4861 | .flags = GENL_ADMIN_PERM, |
29cbe68c | 4862 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4863 | NL80211_FLAG_NEED_RTNL, |
9aed3cc1 | 4864 | }, |
2a519311 JB |
4865 | { |
4866 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
4867 | .doit = nl80211_trigger_scan, | |
4868 | .policy = nl80211_policy, | |
4869 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4870 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4871 | NL80211_FLAG_NEED_RTNL, |
2a519311 JB |
4872 | }, |
4873 | { | |
4874 | .cmd = NL80211_CMD_GET_SCAN, | |
4875 | .policy = nl80211_policy, | |
4876 | .dumpit = nl80211_dump_scan, | |
4877 | }, | |
636a5d36 JM |
4878 | { |
4879 | .cmd = NL80211_CMD_AUTHENTICATE, | |
4880 | .doit = nl80211_authenticate, | |
4881 | .policy = nl80211_policy, | |
4882 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4883 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4884 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4885 | }, |
4886 | { | |
4887 | .cmd = NL80211_CMD_ASSOCIATE, | |
4888 | .doit = nl80211_associate, | |
4889 | .policy = nl80211_policy, | |
4890 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4891 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4892 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4893 | }, |
4894 | { | |
4895 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
4896 | .doit = nl80211_deauthenticate, | |
4897 | .policy = nl80211_policy, | |
4898 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4899 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4900 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4901 | }, |
4902 | { | |
4903 | .cmd = NL80211_CMD_DISASSOCIATE, | |
4904 | .doit = nl80211_disassociate, | |
4905 | .policy = nl80211_policy, | |
4906 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4907 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4908 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 4909 | }, |
04a773ad JB |
4910 | { |
4911 | .cmd = NL80211_CMD_JOIN_IBSS, | |
4912 | .doit = nl80211_join_ibss, | |
4913 | .policy = nl80211_policy, | |
4914 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4915 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4916 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
4917 | }, |
4918 | { | |
4919 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
4920 | .doit = nl80211_leave_ibss, | |
4921 | .policy = nl80211_policy, | |
4922 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4923 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4924 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 4925 | }, |
aff89a9b JB |
4926 | #ifdef CONFIG_NL80211_TESTMODE |
4927 | { | |
4928 | .cmd = NL80211_CMD_TESTMODE, | |
4929 | .doit = nl80211_testmode_do, | |
4930 | .policy = nl80211_policy, | |
4931 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4932 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4933 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
4934 | }, |
4935 | #endif | |
b23aa676 SO |
4936 | { |
4937 | .cmd = NL80211_CMD_CONNECT, | |
4938 | .doit = nl80211_connect, | |
4939 | .policy = nl80211_policy, | |
4940 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4941 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4942 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
4943 | }, |
4944 | { | |
4945 | .cmd = NL80211_CMD_DISCONNECT, | |
4946 | .doit = nl80211_disconnect, | |
4947 | .policy = nl80211_policy, | |
4948 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4949 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4950 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 4951 | }, |
463d0183 JB |
4952 | { |
4953 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
4954 | .doit = nl80211_wiphy_netns, | |
4955 | .policy = nl80211_policy, | |
4956 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4957 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4958 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 4959 | }, |
61fa713c HS |
4960 | { |
4961 | .cmd = NL80211_CMD_GET_SURVEY, | |
4962 | .policy = nl80211_policy, | |
4963 | .dumpit = nl80211_dump_survey, | |
4964 | }, | |
67fbb16b SO |
4965 | { |
4966 | .cmd = NL80211_CMD_SET_PMKSA, | |
4967 | .doit = nl80211_setdel_pmksa, | |
4968 | .policy = nl80211_policy, | |
4969 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4970 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4971 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b SO |
4972 | }, |
4973 | { | |
4974 | .cmd = NL80211_CMD_DEL_PMKSA, | |
4975 | .doit = nl80211_setdel_pmksa, | |
4976 | .policy = nl80211_policy, | |
4977 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4978 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4979 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b SO |
4980 | }, |
4981 | { | |
4982 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
4983 | .doit = nl80211_flush_pmksa, | |
4984 | .policy = nl80211_policy, | |
4985 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4986 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4987 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b | 4988 | }, |
9588bbd5 JM |
4989 | { |
4990 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
4991 | .doit = nl80211_remain_on_channel, | |
4992 | .policy = nl80211_policy, | |
4993 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4994 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4995 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
4996 | }, |
4997 | { | |
4998 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
4999 | .doit = nl80211_cancel_remain_on_channel, | |
5000 | .policy = nl80211_policy, | |
5001 | .flags = GENL_ADMIN_PERM, | |
41265714 | 5002 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 5003 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 5004 | }, |
13ae75b1 JM |
5005 | { |
5006 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
5007 | .doit = nl80211_set_tx_bitrate_mask, | |
5008 | .policy = nl80211_policy, | |
5009 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
5010 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
5011 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 5012 | }, |
026331c4 | 5013 | { |
2e161f78 JB |
5014 | .cmd = NL80211_CMD_REGISTER_FRAME, |
5015 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
5016 | .policy = nl80211_policy, |
5017 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
5018 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
5019 | NL80211_FLAG_NEED_RTNL, | |
026331c4 JM |
5020 | }, |
5021 | { | |
2e161f78 JB |
5022 | .cmd = NL80211_CMD_FRAME, |
5023 | .doit = nl80211_tx_mgmt, | |
026331c4 | 5024 | .policy = nl80211_policy, |
f7ca38df JB |
5025 | .flags = GENL_ADMIN_PERM, |
5026 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
5027 | NL80211_FLAG_NEED_RTNL, | |
5028 | }, | |
5029 | { | |
5030 | .cmd = NL80211_CMD_FRAME_WAIT_CANCEL, | |
5031 | .doit = nl80211_tx_mgmt_cancel_wait, | |
5032 | .policy = nl80211_policy, | |
026331c4 | 5033 | .flags = GENL_ADMIN_PERM, |
41265714 | 5034 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 5035 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 5036 | }, |
ffb9eb3d KV |
5037 | { |
5038 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
5039 | .doit = nl80211_set_power_save, | |
5040 | .policy = nl80211_policy, | |
5041 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
5042 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
5043 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
5044 | }, |
5045 | { | |
5046 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
5047 | .doit = nl80211_get_power_save, | |
5048 | .policy = nl80211_policy, | |
5049 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
5050 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
5051 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 5052 | }, |
d6dc1a38 JO |
5053 | { |
5054 | .cmd = NL80211_CMD_SET_CQM, | |
5055 | .doit = nl80211_set_cqm, | |
5056 | .policy = nl80211_policy, | |
5057 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
5058 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
5059 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 5060 | }, |
f444de05 JB |
5061 | { |
5062 | .cmd = NL80211_CMD_SET_CHANNEL, | |
5063 | .doit = nl80211_set_channel, | |
5064 | .policy = nl80211_policy, | |
5065 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
5066 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
5067 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 5068 | }, |
e8347eba BJ |
5069 | { |
5070 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
5071 | .doit = nl80211_set_wds_peer, | |
5072 | .policy = nl80211_policy, | |
5073 | .flags = GENL_ADMIN_PERM, | |
43b19952 JB |
5074 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
5075 | NL80211_FLAG_NEED_RTNL, | |
e8347eba | 5076 | }, |
29cbe68c JB |
5077 | { |
5078 | .cmd = NL80211_CMD_JOIN_MESH, | |
5079 | .doit = nl80211_join_mesh, | |
5080 | .policy = nl80211_policy, | |
5081 | .flags = GENL_ADMIN_PERM, | |
5082 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
5083 | NL80211_FLAG_NEED_RTNL, | |
5084 | }, | |
5085 | { | |
5086 | .cmd = NL80211_CMD_LEAVE_MESH, | |
5087 | .doit = nl80211_leave_mesh, | |
5088 | .policy = nl80211_policy, | |
5089 | .flags = GENL_ADMIN_PERM, | |
5090 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | | |
5091 | NL80211_FLAG_NEED_RTNL, | |
5092 | }, | |
55682965 | 5093 | }; |
9588bbd5 | 5094 | |
6039f6d2 JM |
5095 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
5096 | .name = "mlme", | |
5097 | }; | |
55682965 JB |
5098 | |
5099 | /* multicast groups */ | |
5100 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
5101 | .name = "config", | |
5102 | }; | |
2a519311 JB |
5103 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
5104 | .name = "scan", | |
5105 | }; | |
73d54c9e LR |
5106 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
5107 | .name = "regulatory", | |
5108 | }; | |
55682965 JB |
5109 | |
5110 | /* notification functions */ | |
5111 | ||
5112 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
5113 | { | |
5114 | struct sk_buff *msg; | |
5115 | ||
fd2120ca | 5116 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
5117 | if (!msg) |
5118 | return; | |
5119 | ||
5120 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
5121 | nlmsg_free(msg); | |
5122 | return; | |
5123 | } | |
5124 | ||
463d0183 JB |
5125 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5126 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
5127 | } |
5128 | ||
362a415d JB |
5129 | static int nl80211_add_scan_req(struct sk_buff *msg, |
5130 | struct cfg80211_registered_device *rdev) | |
5131 | { | |
5132 | struct cfg80211_scan_request *req = rdev->scan_req; | |
5133 | struct nlattr *nest; | |
5134 | int i; | |
5135 | ||
667503dd JB |
5136 | ASSERT_RDEV_LOCK(rdev); |
5137 | ||
362a415d JB |
5138 | if (WARN_ON(!req)) |
5139 | return 0; | |
5140 | ||
5141 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
5142 | if (!nest) | |
5143 | goto nla_put_failure; | |
5144 | for (i = 0; i < req->n_ssids; i++) | |
5145 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
5146 | nla_nest_end(msg, nest); | |
5147 | ||
5148 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
5149 | if (!nest) | |
5150 | goto nla_put_failure; | |
5151 | for (i = 0; i < req->n_channels; i++) | |
5152 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
5153 | nla_nest_end(msg, nest); | |
5154 | ||
5155 | if (req->ie) | |
5156 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
5157 | ||
5158 | return 0; | |
5159 | nla_put_failure: | |
5160 | return -ENOBUFS; | |
5161 | } | |
5162 | ||
a538e2d5 JB |
5163 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
5164 | struct cfg80211_registered_device *rdev, | |
5165 | struct net_device *netdev, | |
5166 | u32 pid, u32 seq, int flags, | |
5167 | u32 cmd) | |
2a519311 JB |
5168 | { |
5169 | void *hdr; | |
5170 | ||
5171 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
5172 | if (!hdr) | |
5173 | return -1; | |
5174 | ||
b5850a7a | 5175 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
5176 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
5177 | ||
362a415d JB |
5178 | /* ignore errors and send incomplete event anyway */ |
5179 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
5180 | |
5181 | return genlmsg_end(msg, hdr); | |
5182 | ||
5183 | nla_put_failure: | |
5184 | genlmsg_cancel(msg, hdr); | |
5185 | return -EMSGSIZE; | |
5186 | } | |
5187 | ||
a538e2d5 JB |
5188 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
5189 | struct net_device *netdev) | |
5190 | { | |
5191 | struct sk_buff *msg; | |
5192 | ||
5193 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
5194 | if (!msg) | |
5195 | return; | |
5196 | ||
5197 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
5198 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
5199 | nlmsg_free(msg); | |
5200 | return; | |
5201 | } | |
5202 | ||
463d0183 JB |
5203 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5204 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
5205 | } |
5206 | ||
2a519311 JB |
5207 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
5208 | struct net_device *netdev) | |
5209 | { | |
5210 | struct sk_buff *msg; | |
5211 | ||
fd2120ca | 5212 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5213 | if (!msg) |
5214 | return; | |
5215 | ||
a538e2d5 JB |
5216 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5217 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
5218 | nlmsg_free(msg); |
5219 | return; | |
5220 | } | |
5221 | ||
463d0183 JB |
5222 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5223 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5224 | } |
5225 | ||
5226 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
5227 | struct net_device *netdev) | |
5228 | { | |
5229 | struct sk_buff *msg; | |
5230 | ||
fd2120ca | 5231 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5232 | if (!msg) |
5233 | return; | |
5234 | ||
a538e2d5 JB |
5235 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5236 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
5237 | nlmsg_free(msg); |
5238 | return; | |
5239 | } | |
5240 | ||
463d0183 JB |
5241 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5242 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5243 | } |
5244 | ||
73d54c9e LR |
5245 | /* |
5246 | * This can happen on global regulatory changes or device specific settings | |
5247 | * based on custom world regulatory domains. | |
5248 | */ | |
5249 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
5250 | { | |
5251 | struct sk_buff *msg; | |
5252 | void *hdr; | |
5253 | ||
fd2120ca | 5254 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
5255 | if (!msg) |
5256 | return; | |
5257 | ||
5258 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
5259 | if (!hdr) { | |
5260 | nlmsg_free(msg); | |
5261 | return; | |
5262 | } | |
5263 | ||
5264 | /* Userspace can always count this one always being set */ | |
5265 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
5266 | ||
5267 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
5268 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5269 | NL80211_REGDOM_TYPE_WORLD); | |
5270 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
5271 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5272 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
5273 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
5274 | request->intersect) | |
5275 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5276 | NL80211_REGDOM_TYPE_INTERSECTION); | |
5277 | else { | |
5278 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5279 | NL80211_REGDOM_TYPE_COUNTRY); | |
5280 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
5281 | } | |
5282 | ||
5283 | if (wiphy_idx_valid(request->wiphy_idx)) | |
5284 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
5285 | ||
5286 | if (genlmsg_end(msg, hdr) < 0) { | |
5287 | nlmsg_free(msg); | |
5288 | return; | |
5289 | } | |
5290 | ||
bc43b28c | 5291 | rcu_read_lock(); |
463d0183 | 5292 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
5293 | GFP_ATOMIC); |
5294 | rcu_read_unlock(); | |
73d54c9e LR |
5295 | |
5296 | return; | |
5297 | ||
5298 | nla_put_failure: | |
5299 | genlmsg_cancel(msg, hdr); | |
5300 | nlmsg_free(msg); | |
5301 | } | |
5302 | ||
6039f6d2 JM |
5303 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
5304 | struct net_device *netdev, | |
5305 | const u8 *buf, size_t len, | |
e6d6e342 | 5306 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
5307 | { |
5308 | struct sk_buff *msg; | |
5309 | void *hdr; | |
5310 | ||
e6d6e342 | 5311 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
5312 | if (!msg) |
5313 | return; | |
5314 | ||
5315 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5316 | if (!hdr) { | |
5317 | nlmsg_free(msg); | |
5318 | return; | |
5319 | } | |
5320 | ||
5321 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5322 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5323 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5324 | ||
5325 | if (genlmsg_end(msg, hdr) < 0) { | |
5326 | nlmsg_free(msg); | |
5327 | return; | |
5328 | } | |
5329 | ||
463d0183 JB |
5330 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5331 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
5332 | return; |
5333 | ||
5334 | nla_put_failure: | |
5335 | genlmsg_cancel(msg, hdr); | |
5336 | nlmsg_free(msg); | |
5337 | } | |
5338 | ||
5339 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5340 | struct net_device *netdev, const u8 *buf, |
5341 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5342 | { |
5343 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5344 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
5345 | } |
5346 | ||
5347 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
5348 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5349 | size_t len, gfp_t gfp) |
6039f6d2 | 5350 | { |
e6d6e342 JB |
5351 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
5352 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
5353 | } |
5354 | ||
53b46b84 | 5355 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
5356 | struct net_device *netdev, const u8 *buf, |
5357 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5358 | { |
5359 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5360 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
5361 | } |
5362 | ||
53b46b84 JM |
5363 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
5364 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5365 | size_t len, gfp_t gfp) |
6039f6d2 JM |
5366 | { |
5367 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5368 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
5369 | } |
5370 | ||
1b06bb40 LR |
5371 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
5372 | struct net_device *netdev, int cmd, | |
e6d6e342 | 5373 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
5374 | { |
5375 | struct sk_buff *msg; | |
5376 | void *hdr; | |
5377 | ||
e6d6e342 | 5378 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
5379 | if (!msg) |
5380 | return; | |
5381 | ||
5382 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5383 | if (!hdr) { | |
5384 | nlmsg_free(msg); | |
5385 | return; | |
5386 | } | |
5387 | ||
5388 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5389 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5390 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
5391 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5392 | ||
5393 | if (genlmsg_end(msg, hdr) < 0) { | |
5394 | nlmsg_free(msg); | |
5395 | return; | |
5396 | } | |
5397 | ||
463d0183 JB |
5398 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5399 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
5400 | return; |
5401 | ||
5402 | nla_put_failure: | |
5403 | genlmsg_cancel(msg, hdr); | |
5404 | nlmsg_free(msg); | |
5405 | } | |
5406 | ||
5407 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5408 | struct net_device *netdev, const u8 *addr, |
5409 | gfp_t gfp) | |
1965c853 JM |
5410 | { |
5411 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 5412 | addr, gfp); |
1965c853 JM |
5413 | } |
5414 | ||
5415 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5416 | struct net_device *netdev, const u8 *addr, |
5417 | gfp_t gfp) | |
1965c853 | 5418 | { |
e6d6e342 JB |
5419 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
5420 | addr, gfp); | |
1965c853 JM |
5421 | } |
5422 | ||
b23aa676 SO |
5423 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
5424 | struct net_device *netdev, const u8 *bssid, | |
5425 | const u8 *req_ie, size_t req_ie_len, | |
5426 | const u8 *resp_ie, size_t resp_ie_len, | |
5427 | u16 status, gfp_t gfp) | |
5428 | { | |
5429 | struct sk_buff *msg; | |
5430 | void *hdr; | |
5431 | ||
5432 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5433 | if (!msg) | |
5434 | return; | |
5435 | ||
5436 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
5437 | if (!hdr) { | |
5438 | nlmsg_free(msg); | |
5439 | return; | |
5440 | } | |
5441 | ||
5442 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5443 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5444 | if (bssid) | |
5445 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5446 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
5447 | if (req_ie) | |
5448 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5449 | if (resp_ie) | |
5450 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5451 | ||
5452 | if (genlmsg_end(msg, hdr) < 0) { | |
5453 | nlmsg_free(msg); | |
5454 | return; | |
5455 | } | |
5456 | ||
463d0183 JB |
5457 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5458 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5459 | return; |
5460 | ||
5461 | nla_put_failure: | |
5462 | genlmsg_cancel(msg, hdr); | |
5463 | nlmsg_free(msg); | |
5464 | ||
5465 | } | |
5466 | ||
5467 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
5468 | struct net_device *netdev, const u8 *bssid, | |
5469 | const u8 *req_ie, size_t req_ie_len, | |
5470 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
5471 | { | |
5472 | struct sk_buff *msg; | |
5473 | void *hdr; | |
5474 | ||
5475 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5476 | if (!msg) | |
5477 | return; | |
5478 | ||
5479 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
5480 | if (!hdr) { | |
5481 | nlmsg_free(msg); | |
5482 | return; | |
5483 | } | |
5484 | ||
5485 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5486 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5487 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5488 | if (req_ie) | |
5489 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5490 | if (resp_ie) | |
5491 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5492 | ||
5493 | if (genlmsg_end(msg, hdr) < 0) { | |
5494 | nlmsg_free(msg); | |
5495 | return; | |
5496 | } | |
5497 | ||
463d0183 JB |
5498 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5499 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5500 | return; |
5501 | ||
5502 | nla_put_failure: | |
5503 | genlmsg_cancel(msg, hdr); | |
5504 | nlmsg_free(msg); | |
5505 | ||
5506 | } | |
5507 | ||
5508 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
5509 | struct net_device *netdev, u16 reason, | |
667503dd | 5510 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
5511 | { |
5512 | struct sk_buff *msg; | |
5513 | void *hdr; | |
5514 | ||
667503dd | 5515 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
5516 | if (!msg) |
5517 | return; | |
5518 | ||
5519 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
5520 | if (!hdr) { | |
5521 | nlmsg_free(msg); | |
5522 | return; | |
5523 | } | |
5524 | ||
5525 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5526 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5527 | if (from_ap && reason) | |
5528 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
5529 | if (from_ap) | |
5530 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
5531 | if (ie) | |
5532 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
5533 | ||
5534 | if (genlmsg_end(msg, hdr) < 0) { | |
5535 | nlmsg_free(msg); | |
5536 | return; | |
5537 | } | |
5538 | ||
463d0183 JB |
5539 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5540 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
5541 | return; |
5542 | ||
5543 | nla_put_failure: | |
5544 | genlmsg_cancel(msg, hdr); | |
5545 | nlmsg_free(msg); | |
5546 | ||
5547 | } | |
5548 | ||
04a773ad JB |
5549 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
5550 | struct net_device *netdev, const u8 *bssid, | |
5551 | gfp_t gfp) | |
5552 | { | |
5553 | struct sk_buff *msg; | |
5554 | void *hdr; | |
5555 | ||
fd2120ca | 5556 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
5557 | if (!msg) |
5558 | return; | |
5559 | ||
5560 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
5561 | if (!hdr) { | |
5562 | nlmsg_free(msg); | |
5563 | return; | |
5564 | } | |
5565 | ||
5566 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5567 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5568 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5569 | ||
5570 | if (genlmsg_end(msg, hdr) < 0) { | |
5571 | nlmsg_free(msg); | |
5572 | return; | |
5573 | } | |
5574 | ||
463d0183 JB |
5575 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5576 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
5577 | return; |
5578 | ||
5579 | nla_put_failure: | |
5580 | genlmsg_cancel(msg, hdr); | |
5581 | nlmsg_free(msg); | |
5582 | } | |
5583 | ||
a3b8b056 JM |
5584 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
5585 | struct net_device *netdev, const u8 *addr, | |
5586 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 5587 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
5588 | { |
5589 | struct sk_buff *msg; | |
5590 | void *hdr; | |
5591 | ||
e6d6e342 | 5592 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
5593 | if (!msg) |
5594 | return; | |
5595 | ||
5596 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
5597 | if (!hdr) { | |
5598 | nlmsg_free(msg); | |
5599 | return; | |
5600 | } | |
5601 | ||
5602 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5603 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5604 | if (addr) | |
5605 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5606 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
5607 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
5608 | if (tsc) | |
5609 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
5610 | ||
5611 | if (genlmsg_end(msg, hdr) < 0) { | |
5612 | nlmsg_free(msg); | |
5613 | return; | |
5614 | } | |
5615 | ||
463d0183 JB |
5616 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5617 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
5618 | return; |
5619 | ||
5620 | nla_put_failure: | |
5621 | genlmsg_cancel(msg, hdr); | |
5622 | nlmsg_free(msg); | |
5623 | } | |
5624 | ||
6bad8766 LR |
5625 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
5626 | struct ieee80211_channel *channel_before, | |
5627 | struct ieee80211_channel *channel_after) | |
5628 | { | |
5629 | struct sk_buff *msg; | |
5630 | void *hdr; | |
5631 | struct nlattr *nl_freq; | |
5632 | ||
fd2120ca | 5633 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
5634 | if (!msg) |
5635 | return; | |
5636 | ||
5637 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
5638 | if (!hdr) { | |
5639 | nlmsg_free(msg); | |
5640 | return; | |
5641 | } | |
5642 | ||
5643 | /* | |
5644 | * Since we are applying the beacon hint to a wiphy we know its | |
5645 | * wiphy_idx is valid | |
5646 | */ | |
5647 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
5648 | ||
5649 | /* Before */ | |
5650 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
5651 | if (!nl_freq) | |
5652 | goto nla_put_failure; | |
5653 | if (nl80211_msg_put_channel(msg, channel_before)) | |
5654 | goto nla_put_failure; | |
5655 | nla_nest_end(msg, nl_freq); | |
5656 | ||
5657 | /* After */ | |
5658 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
5659 | if (!nl_freq) | |
5660 | goto nla_put_failure; | |
5661 | if (nl80211_msg_put_channel(msg, channel_after)) | |
5662 | goto nla_put_failure; | |
5663 | nla_nest_end(msg, nl_freq); | |
5664 | ||
5665 | if (genlmsg_end(msg, hdr) < 0) { | |
5666 | nlmsg_free(msg); | |
5667 | return; | |
5668 | } | |
5669 | ||
463d0183 JB |
5670 | rcu_read_lock(); |
5671 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
5672 | GFP_ATOMIC); | |
5673 | rcu_read_unlock(); | |
6bad8766 LR |
5674 | |
5675 | return; | |
5676 | ||
5677 | nla_put_failure: | |
5678 | genlmsg_cancel(msg, hdr); | |
5679 | nlmsg_free(msg); | |
5680 | } | |
5681 | ||
9588bbd5 JM |
5682 | static void nl80211_send_remain_on_chan_event( |
5683 | int cmd, struct cfg80211_registered_device *rdev, | |
5684 | struct net_device *netdev, u64 cookie, | |
5685 | struct ieee80211_channel *chan, | |
5686 | enum nl80211_channel_type channel_type, | |
5687 | unsigned int duration, gfp_t gfp) | |
5688 | { | |
5689 | struct sk_buff *msg; | |
5690 | void *hdr; | |
5691 | ||
5692 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5693 | if (!msg) | |
5694 | return; | |
5695 | ||
5696 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5697 | if (!hdr) { | |
5698 | nlmsg_free(msg); | |
5699 | return; | |
5700 | } | |
5701 | ||
5702 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5703 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5704 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq); | |
5705 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type); | |
5706 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5707 | ||
5708 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL) | |
5709 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
5710 | ||
5711 | if (genlmsg_end(msg, hdr) < 0) { | |
5712 | nlmsg_free(msg); | |
5713 | return; | |
5714 | } | |
5715 | ||
5716 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5717 | nl80211_mlme_mcgrp.id, gfp); | |
5718 | return; | |
5719 | ||
5720 | nla_put_failure: | |
5721 | genlmsg_cancel(msg, hdr); | |
5722 | nlmsg_free(msg); | |
5723 | } | |
5724 | ||
5725 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
5726 | struct net_device *netdev, u64 cookie, | |
5727 | struct ieee80211_channel *chan, | |
5728 | enum nl80211_channel_type channel_type, | |
5729 | unsigned int duration, gfp_t gfp) | |
5730 | { | |
5731 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
5732 | rdev, netdev, cookie, chan, | |
5733 | channel_type, duration, gfp); | |
5734 | } | |
5735 | ||
5736 | void nl80211_send_remain_on_channel_cancel( | |
5737 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
5738 | u64 cookie, struct ieee80211_channel *chan, | |
5739 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
5740 | { | |
5741 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5742 | rdev, netdev, cookie, chan, | |
5743 | channel_type, 0, gfp); | |
5744 | } | |
5745 | ||
98b62183 JB |
5746 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
5747 | struct net_device *dev, const u8 *mac_addr, | |
5748 | struct station_info *sinfo, gfp_t gfp) | |
5749 | { | |
5750 | struct sk_buff *msg; | |
5751 | ||
5752 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5753 | if (!msg) | |
5754 | return; | |
5755 | ||
5756 | if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) { | |
5757 | nlmsg_free(msg); | |
5758 | return; | |
5759 | } | |
5760 | ||
5761 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5762 | nl80211_mlme_mcgrp.id, gfp); | |
5763 | } | |
5764 | ||
2e161f78 JB |
5765 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
5766 | struct net_device *netdev, u32 nlpid, | |
5767 | int freq, const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 JM |
5768 | { |
5769 | struct sk_buff *msg; | |
5770 | void *hdr; | |
5771 | int err; | |
5772 | ||
5773 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5774 | if (!msg) | |
5775 | return -ENOMEM; | |
5776 | ||
2e161f78 | 5777 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
5778 | if (!hdr) { |
5779 | nlmsg_free(msg); | |
5780 | return -ENOMEM; | |
5781 | } | |
5782 | ||
5783 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5784 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5785 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
5786 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5787 | ||
5788 | err = genlmsg_end(msg, hdr); | |
5789 | if (err < 0) { | |
5790 | nlmsg_free(msg); | |
5791 | return err; | |
5792 | } | |
5793 | ||
5794 | err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
5795 | if (err < 0) | |
5796 | return err; | |
5797 | return 0; | |
5798 | ||
5799 | nla_put_failure: | |
5800 | genlmsg_cancel(msg, hdr); | |
5801 | nlmsg_free(msg); | |
5802 | return -ENOBUFS; | |
5803 | } | |
5804 | ||
2e161f78 JB |
5805 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
5806 | struct net_device *netdev, u64 cookie, | |
5807 | const u8 *buf, size_t len, bool ack, | |
5808 | gfp_t gfp) | |
026331c4 JM |
5809 | { |
5810 | struct sk_buff *msg; | |
5811 | void *hdr; | |
5812 | ||
5813 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5814 | if (!msg) | |
5815 | return; | |
5816 | ||
2e161f78 | 5817 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
5818 | if (!hdr) { |
5819 | nlmsg_free(msg); | |
5820 | return; | |
5821 | } | |
5822 | ||
5823 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5824 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5825 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5826 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5827 | if (ack) | |
5828 | NLA_PUT_FLAG(msg, NL80211_ATTR_ACK); | |
5829 | ||
5830 | if (genlmsg_end(msg, hdr) < 0) { | |
5831 | nlmsg_free(msg); | |
5832 | return; | |
5833 | } | |
5834 | ||
5835 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
5836 | return; | |
5837 | ||
5838 | nla_put_failure: | |
5839 | genlmsg_cancel(msg, hdr); | |
5840 | nlmsg_free(msg); | |
5841 | } | |
5842 | ||
d6dc1a38 JO |
5843 | void |
5844 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
5845 | struct net_device *netdev, | |
5846 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
5847 | gfp_t gfp) | |
5848 | { | |
5849 | struct sk_buff *msg; | |
5850 | struct nlattr *pinfoattr; | |
5851 | void *hdr; | |
5852 | ||
5853 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5854 | if (!msg) | |
5855 | return; | |
5856 | ||
5857 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
5858 | if (!hdr) { | |
5859 | nlmsg_free(msg); | |
5860 | return; | |
5861 | } | |
5862 | ||
5863 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5864 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5865 | ||
5866 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
5867 | if (!pinfoattr) | |
5868 | goto nla_put_failure; | |
5869 | ||
5870 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
5871 | rssi_event); | |
5872 | ||
5873 | nla_nest_end(msg, pinfoattr); | |
5874 | ||
5875 | if (genlmsg_end(msg, hdr) < 0) { | |
5876 | nlmsg_free(msg); | |
5877 | return; | |
5878 | } | |
5879 | ||
5880 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5881 | nl80211_mlme_mcgrp.id, gfp); | |
5882 | return; | |
5883 | ||
5884 | nla_put_failure: | |
5885 | genlmsg_cancel(msg, hdr); | |
5886 | nlmsg_free(msg); | |
5887 | } | |
5888 | ||
c063dbf5 JB |
5889 | void |
5890 | nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev, | |
5891 | struct net_device *netdev, const u8 *peer, | |
5892 | u32 num_packets, gfp_t gfp) | |
5893 | { | |
5894 | struct sk_buff *msg; | |
5895 | struct nlattr *pinfoattr; | |
5896 | void *hdr; | |
5897 | ||
5898 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5899 | if (!msg) | |
5900 | return; | |
5901 | ||
5902 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
5903 | if (!hdr) { | |
5904 | nlmsg_free(msg); | |
5905 | return; | |
5906 | } | |
5907 | ||
5908 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5909 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5910 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer); | |
5911 | ||
5912 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
5913 | if (!pinfoattr) | |
5914 | goto nla_put_failure; | |
5915 | ||
5916 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets); | |
5917 | ||
5918 | nla_nest_end(msg, pinfoattr); | |
5919 | ||
5920 | if (genlmsg_end(msg, hdr) < 0) { | |
5921 | nlmsg_free(msg); | |
5922 | return; | |
5923 | } | |
5924 | ||
5925 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5926 | nl80211_mlme_mcgrp.id, gfp); | |
5927 | return; | |
5928 | ||
5929 | nla_put_failure: | |
5930 | genlmsg_cancel(msg, hdr); | |
5931 | nlmsg_free(msg); | |
5932 | } | |
5933 | ||
026331c4 JM |
5934 | static int nl80211_netlink_notify(struct notifier_block * nb, |
5935 | unsigned long state, | |
5936 | void *_notify) | |
5937 | { | |
5938 | struct netlink_notify *notify = _notify; | |
5939 | struct cfg80211_registered_device *rdev; | |
5940 | struct wireless_dev *wdev; | |
5941 | ||
5942 | if (state != NETLINK_URELEASE) | |
5943 | return NOTIFY_DONE; | |
5944 | ||
5945 | rcu_read_lock(); | |
5946 | ||
5947 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) | |
5948 | list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) | |
2e161f78 | 5949 | cfg80211_mlme_unregister_socket(wdev, notify->pid); |
026331c4 JM |
5950 | |
5951 | rcu_read_unlock(); | |
5952 | ||
5953 | return NOTIFY_DONE; | |
5954 | } | |
5955 | ||
5956 | static struct notifier_block nl80211_netlink_notifier = { | |
5957 | .notifier_call = nl80211_netlink_notify, | |
5958 | }; | |
5959 | ||
55682965 JB |
5960 | /* initialisation/exit functions */ |
5961 | ||
5962 | int nl80211_init(void) | |
5963 | { | |
0d63cbb5 | 5964 | int err; |
55682965 | 5965 | |
0d63cbb5 MM |
5966 | err = genl_register_family_with_ops(&nl80211_fam, |
5967 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
5968 | if (err) |
5969 | return err; | |
5970 | ||
55682965 JB |
5971 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
5972 | if (err) | |
5973 | goto err_out; | |
5974 | ||
2a519311 JB |
5975 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
5976 | if (err) | |
5977 | goto err_out; | |
5978 | ||
73d54c9e LR |
5979 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
5980 | if (err) | |
5981 | goto err_out; | |
5982 | ||
6039f6d2 JM |
5983 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
5984 | if (err) | |
5985 | goto err_out; | |
5986 | ||
aff89a9b JB |
5987 | #ifdef CONFIG_NL80211_TESTMODE |
5988 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
5989 | if (err) | |
5990 | goto err_out; | |
5991 | #endif | |
5992 | ||
026331c4 JM |
5993 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
5994 | if (err) | |
5995 | goto err_out; | |
5996 | ||
55682965 JB |
5997 | return 0; |
5998 | err_out: | |
5999 | genl_unregister_family(&nl80211_fam); | |
6000 | return err; | |
6001 | } | |
6002 | ||
6003 | void nl80211_exit(void) | |
6004 | { | |
026331c4 | 6005 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
6006 | genl_unregister_family(&nl80211_fam); |
6007 | } |