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cfg80211: set the rates mask in connection probes over specified freq
[linux-block.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
2740f0cf 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
55682965
JB		 6 */
7
8#include <linux/if.h>
9#include <linux/module.h>
10#include <linux/err.h>
5a0e3ad6 11#include <linux/slab.h>
55682965
JB		 12#include <linux/list.h>
13#include <linux/if_ether.h>
14#include <linux/ieee80211.h>
15#include <linux/nl80211.h>
16#include <linux/rtnetlink.h>
17#include <linux/netlink.h>
2a519311 18#include <linux/etherdevice.h>
463d0183 19#include <net/net_namespace.h>
55682965
JB		 20#include <net/genetlink.h>
21#include <net/cfg80211.h>
463d0183 22#include <net/sock.h>
2a0e047e 23#include <net/inet_connection_sock.h>
55682965
JB		 24#include "core.h"
25#include "nl80211.h"
b2e1b302 26#include "reg.h"
e35e4d28 27#include "rdev-ops.h"
55682965 28
5fb628e9
JM		 29static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
30 struct genl_info *info,
31 struct cfg80211_crypto_settings *settings,
32 int cipher_limit);
33
f84f771d 34static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991 35 struct genl_info *info);
f84f771d 36static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 37 struct genl_info *info);
38
55682965
JB		 39/* the netlink family */
40static struct genl_family nl80211_fam = {
fb4e1568
MH		 41 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
42 .name = NL80211_GENL_NAME, /* have users key off the name instead */
43 .hdrsize = 0, /* no private header */
44 .version = 1, /* no particular meaning now */
55682965 45 .maxattr = NL80211_ATTR_MAX,
463d0183 46 .netnsok = true,
4c476991
JB		 47 .pre_doit = nl80211_pre_doit,
48 .post_doit = nl80211_post_doit,
55682965
JB		 49};
50
2a94fe48
JB		 51/* multicast groups */
52enum nl80211_multicast_groups {
53 NL80211_MCGRP_CONFIG,
54 NL80211_MCGRP_SCAN,
55 NL80211_MCGRP_REGULATORY,
56 NL80211_MCGRP_MLME,
567ffc35 57 NL80211_MCGRP_VENDOR,
2a94fe48
JB		 58 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
59};
60
61static const struct genl_multicast_group nl80211_mcgrps[] = {
62 [NL80211_MCGRP_CONFIG] = { .name = "config", },
63 [NL80211_MCGRP_SCAN] = { .name = "scan", },
64 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
65 [NL80211_MCGRP_MLME] = { .name = "mlme", },
567ffc35 66 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
2a94fe48
JB		 67#ifdef CONFIG_NL80211_TESTMODE
68 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
69#endif
70};
71
89a54e48
JB		 72/* returns ERR_PTR values */
73static struct wireless_dev *
74__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 75{
89a54e48
JB		 76 struct cfg80211_registered_device *rdev;
77 struct wireless_dev *result = NULL;
78 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
79 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
80 u64 wdev_id;
81 int wiphy_idx = -1;
82 int ifidx = -1;
55682965 83
5fe231e8 84 ASSERT_RTNL();
55682965 85
89a54e48
JB		 86 if (!have_ifidx && !have_wdev_id)
87 return ERR_PTR(-EINVAL);
55682965 88
89a54e48
JB		 89 if (have_ifidx)
90 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 if (have_wdev_id) {
92 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
93 wiphy_idx = wdev_id >> 32;
55682965
JB		 94 }
95
89a54e48
JB		 96 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
97 struct wireless_dev *wdev;
98
99 if (wiphy_net(&rdev->wiphy) != netns)
100 continue;
101
102 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
103 continue;
104
89a54e48
JB		 105 list_for_each_entry(wdev, &rdev->wdev_list, list) {
106 if (have_ifidx && wdev->netdev &&
107 wdev->netdev->ifindex == ifidx) {
108 result = wdev;
109 break;
110 }
111 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
112 result = wdev;
113 break;
114 }
115 }
89a54e48
JB		 116
117 if (result)
118 break;
119 }
120
121 if (result)
122 return result;
123 return ERR_PTR(-ENODEV);
55682965
JB		 124}
125
a9455408 126static struct cfg80211_registered_device *
878d9ec7 127__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 128{
7fee4778
JB		 129 struct cfg80211_registered_device *rdev = NULL, *tmp;
130 struct net_device *netdev;
a9455408 131
5fe231e8 132 ASSERT_RTNL();
a9455408 133
878d9ec7 134 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 135 !attrs[NL80211_ATTR_IFINDEX] &&
136 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 137 return ERR_PTR(-EINVAL);
138
878d9ec7 139 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 140 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 141 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 142
89a54e48
JB		 143 if (attrs[NL80211_ATTR_WDEV]) {
144 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
145 struct wireless_dev *wdev;
146 bool found = false;
147
148 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
149 if (tmp) {
150 /* make sure wdev exists */
89a54e48
JB		 151 list_for_each_entry(wdev, &tmp->wdev_list, list) {
152 if (wdev->identifier != (u32)wdev_id)
153 continue;
154 found = true;
155 break;
156 }
89a54e48
JB		 157
158 if (!found)
159 tmp = NULL;
160
161 if (rdev && tmp != rdev)
162 return ERR_PTR(-EINVAL);
163 rdev = tmp;
164 }
165 }
166
878d9ec7
JB		 167 if (attrs[NL80211_ATTR_IFINDEX]) {
168 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
7f2b8562 169 netdev = __dev_get_by_index(netns, ifindex);
7fee4778
JB		 170 if (netdev) {
171 if (netdev->ieee80211_ptr)
f26cbf40
ZG		 172 tmp = wiphy_to_rdev(
173 netdev->ieee80211_ptr->wiphy);
7fee4778
JB		 174 else
175 tmp = NULL;
176
7fee4778
JB		 177 /* not wireless device -- return error */
178 if (!tmp)
179 return ERR_PTR(-EINVAL);
180
181 /* mismatch -- return error */
182 if (rdev && tmp != rdev)
183 return ERR_PTR(-EINVAL);
184
185 rdev = tmp;
a9455408 186 }
a9455408 187 }
a9455408 188
4f7eff10
JB		 189 if (!rdev)
190 return ERR_PTR(-ENODEV);
a9455408 191
4f7eff10
JB		 192 if (netns != wiphy_net(&rdev->wiphy))
193 return ERR_PTR(-ENODEV);
194
195 return rdev;
a9455408
JB		 196}
197
198/*
199 * This function returns a pointer to the driver
200 * that the genl_info item that is passed refers to.
a9455408
JB		 201 *
202 * The result of this can be a PTR_ERR and hence must
203 * be checked with IS_ERR() for errors.
204 */
205static struct cfg80211_registered_device *
4f7eff10 206cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408 207{
5fe231e8 208 return __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209}
210
55682965 211/* policy for the attributes */
b54452b0 212static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 215 .len = 20-1 },
31888487 216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 217
72bdcf34 218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223
b9a5f8ca
JM		 224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
3057dbfd 229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
55682965
JB		 230
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 234
e007b857
EP		 235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 237
b9454e83 238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 246
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 262 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 264
b2e1b302
LR		 265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
267
9f1ba906
JM		 268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
50b12f59 273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 274
24bdd9f4 275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 277
6c739419 278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 279
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 285
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
295 },
3f77316c 296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
31fa97c5 342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
e247bd90 343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
350 },
1d9d9213 351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
9d62a986
JM		 363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
3713b4e3 365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
ee2aca34
JB		 366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
369 },
355199e0
JM		 370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
5e4b6f56 373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
16ef1fe2
SW		 374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
9a774c78
AO		 377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
c01fc9ad
SD		 379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
5336fa88 381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
60f4a7b1 382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
ad7e718c
JB		 383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
fa9ffc74
KP		 386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
1df4a510
JM		 388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
df942e7b 390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
78f22b6a 391 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
34d22ce2 392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
bab5ab7d 393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
960d01ac
JB		 394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
18998c38 397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
55682965
JB		 398};
399
e31b8213 400/* policy for the key attributes */
b54452b0 401static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 402 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 403 [NL80211_KEY_IDX] = { .type = NLA_U8 },
404 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 405 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 406 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
407 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 408 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 409 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
410};
411
412/* policy for the key default flags */
413static const struct nla_policy
414nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
415 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
416 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 417};
418
ff1b6e69
JB		 419/* policy for WoWLAN attributes */
420static const struct nla_policy
421nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
422 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
423 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
424 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 426 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
427 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 430 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
431};
432
433static const struct nla_policy
434nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
435 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
436 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
437 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
438 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
439 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
440 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
441 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
442 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
443 },
444 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
445 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
446 },
447 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
448 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
449 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 450};
451
be29b99a
AK		 452/* policy for coalesce rule attributes */
453static const struct nla_policy
454nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
455 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
456 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
457 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
458};
459
e5497d76
JB		 460/* policy for GTK rekey offload attributes */
461static const struct nla_policy
462nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
463 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
464 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
465 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
466};
467
a1f1c21c
LC		 468static const struct nla_policy
469nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 470 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 471 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 472 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 473};
474
97990a06
JB		 475static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
476 struct netlink_callback *cb,
477 struct cfg80211_registered_device **rdev,
478 struct wireless_dev **wdev)
a043897a 479{
97990a06 480 int err;
a043897a 481
97990a06 482 rtnl_lock();
a043897a 483
97990a06
JB		 484 if (!cb->args[0]) {
485 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
486 nl80211_fam.attrbuf, nl80211_fam.maxattr,
487 nl80211_policy);
488 if (err)
489 goto out_unlock;
67748893 490
97990a06
JB		 491 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
492 nl80211_fam.attrbuf);
493 if (IS_ERR(*wdev)) {
494 err = PTR_ERR(*wdev);
495 goto out_unlock;
496 }
f26cbf40 497 *rdev = wiphy_to_rdev((*wdev)->wiphy);
c319d50b
JB		 498 /* 0 is the first index - add 1 to parse only once */
499 cb->args[0] = (*rdev)->wiphy_idx + 1;
97990a06
JB		 500 cb->args[1] = (*wdev)->identifier;
501 } else {
c319d50b
JB		 502 /* subtract the 1 again here */
503 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
97990a06 504 struct wireless_dev *tmp;
67748893 505
97990a06
JB		 506 if (!wiphy) {
507 err = -ENODEV;
508 goto out_unlock;
509 }
f26cbf40 510 *rdev = wiphy_to_rdev(wiphy);
97990a06 511 *wdev = NULL;
67748893 512
97990a06
JB		 513 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
514 if (tmp->identifier == cb->args[1]) {
515 *wdev = tmp;
516 break;
517 }
518 }
67748893 519
97990a06
JB		 520 if (!*wdev) {
521 err = -ENODEV;
522 goto out_unlock;
523 }
67748893
JB		 524 }
525
67748893 526 return 0;
97990a06 527 out_unlock:
67748893
JB		 528 rtnl_unlock();
529 return err;
530}
531
97990a06 532static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
67748893 533{
67748893
JB		 534 rtnl_unlock();
535}
536
f4a11bb0
JB		 537/* IE validation */
538static bool is_valid_ie_attr(const struct nlattr *attr)
539{
540 const u8 *pos;
541 int len;
542
543 if (!attr)
544 return true;
545
546 pos = nla_data(attr);
547 len = nla_len(attr);
548
549 while (len) {
550 u8 elemlen;
551
552 if (len < 2)
553 return false;
554 len -= 2;
555
556 elemlen = pos[1];
557 if (elemlen > len)
558 return false;
559
560 len -= elemlen;
561 pos += 2 + elemlen;
562 }
563
564 return true;
565}
566
55682965 567/* message building helper */
15e47304 568static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 569 int flags, u8 cmd)
570{
571 /* since there is no private header just add the generic one */
15e47304 572 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 573}
574
5dab3b8a 575static int nl80211_msg_put_channel(struct sk_buff *msg,
cdc89b97
JB		 576 struct ieee80211_channel *chan,
577 bool large)
5dab3b8a 578{
ea077c1c
RL		 579 /* Some channels must be completely excluded from the
580 * list to protect old user-space tools from breaking
581 */
582 if (!large && chan->flags &
583 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
584 return 0;
585
9360ffd1
DM		 586 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
587 chan->center_freq))
588 goto nla_put_failure;
5dab3b8a 589
9360ffd1
DM		 590 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
591 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
592 goto nla_put_failure;
8fe02e16
LR		 593 if (chan->flags & IEEE80211_CHAN_NO_IR) {
594 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
595 goto nla_put_failure;
596 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
597 goto nla_put_failure;
598 }
cdc89b97
JB		 599 if (chan->flags & IEEE80211_CHAN_RADAR) {
600 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
601 goto nla_put_failure;
602 if (large) {
603 u32 time;
604
605 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
606
607 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
608 chan->dfs_state))
609 goto nla_put_failure;
610 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
611 time))
612 goto nla_put_failure;
089027e5
JD		 613 if (nla_put_u32(msg,
614 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
615 chan->dfs_cac_ms))
616 goto nla_put_failure;
cdc89b97
JB		 617 }
618 }
5dab3b8a 619
fe1abafd
JB		 620 if (large) {
621 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
622 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
623 goto nla_put_failure;
624 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
625 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
626 goto nla_put_failure;
627 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
632 goto nla_put_failure;
570dbde1
DS		 633 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
635 goto nla_put_failure;
636 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
638 goto nla_put_failure;
ea077c1c
RL		 639 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
640 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
641 goto nla_put_failure;
642 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
643 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
644 goto nla_put_failure;
fe1abafd
JB		 645 }
646
9360ffd1
DM		 647 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
648 DBM_TO_MBM(chan->max_power)))
649 goto nla_put_failure;
5dab3b8a
LR		 650
651 return 0;
652
653 nla_put_failure:
654 return -ENOBUFS;
655}
656
55682965
JB		 657/* netlink command implementations */
658
b9454e83
JB		 659struct key_parse {
660 struct key_params p;
661 int idx;
e31b8213 662 int type;
b9454e83 663 bool def, defmgmt;
dbd2fd65 664 bool def_uni, def_multi;
b9454e83
JB		 665};
666
667static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
668{
669 struct nlattr *tb[NL80211_KEY_MAX + 1];
670 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
671 nl80211_key_policy);
672 if (err)
673 return err;
674
675 k->def = !!tb[NL80211_KEY_DEFAULT];
676 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
677
dbd2fd65
JB		 678 if (k->def) {
679 k->def_uni = true;
680 k->def_multi = true;
681 }
682 if (k->defmgmt)
683 k->def_multi = true;
684
b9454e83
JB		 685 if (tb[NL80211_KEY_IDX])
686 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
687
688 if (tb[NL80211_KEY_DATA]) {
689 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
690 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
691 }
692
693 if (tb[NL80211_KEY_SEQ]) {
694 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
695 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
696 }
697
698 if (tb[NL80211_KEY_CIPHER])
699 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
700
e31b8213
JB		 701 if (tb[NL80211_KEY_TYPE]) {
702 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
703 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
704 return -EINVAL;
705 }
706
dbd2fd65
JB		 707 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
708 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 709 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
710 tb[NL80211_KEY_DEFAULT_TYPES],
711 nl80211_key_default_policy);
dbd2fd65
JB		 712 if (err)
713 return err;
714
715 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
716 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
717 }
718
b9454e83
JB		 719 return 0;
720}
721
722static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
723{
724 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
725 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
726 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
727 }
728
729 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
730 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
731 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
732 }
733
734 if (info->attrs[NL80211_ATTR_KEY_IDX])
735 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
736
737 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
738 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
739
740 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
741 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
742
dbd2fd65
JB		 743 if (k->def) {
744 k->def_uni = true;
745 k->def_multi = true;
746 }
747 if (k->defmgmt)
748 k->def_multi = true;
749
e31b8213
JB		 750 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
751 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
752 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
753 return -EINVAL;
754 }
755
dbd2fd65
JB		 756 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
757 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
758 int err = nla_parse_nested(
759 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
760 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
761 nl80211_key_default_policy);
762 if (err)
763 return err;
764
765 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
766 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
767 }
768
b9454e83
JB		 769 return 0;
770}
771
772static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
773{
774 int err;
775
776 memset(k, 0, sizeof(*k));
777 k->idx = -1;
e31b8213 778 k->type = -1;
b9454e83
JB		 779
780 if (info->attrs[NL80211_ATTR_KEY])
781 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
782 else
783 err = nl80211_parse_key_old(info, k);
784
785 if (err)
786 return err;
787
788 if (k->def && k->defmgmt)
789 return -EINVAL;
790
dbd2fd65
JB		 791 if (k->defmgmt) {
792 if (k->def_uni || !k->def_multi)
793 return -EINVAL;
794 }
795
b9454e83
JB		 796 if (k->idx != -1) {
797 if (k->defmgmt) {
798 if (k->idx < 4 || k->idx > 5)
799 return -EINVAL;
800 } else if (k->def) {
801 if (k->idx < 0 || k->idx > 3)
802 return -EINVAL;
803 } else {
804 if (k->idx < 0 || k->idx > 5)
805 return -EINVAL;
806 }
807 }
808
809 return 0;
810}
811
fffd0934
JB		 812static struct cfg80211_cached_keys *
813nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 814 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 815{
816 struct key_parse parse;
817 struct nlattr *key;
818 struct cfg80211_cached_keys *result;
819 int rem, err, def = 0;
820
821 result = kzalloc(sizeof(*result), GFP_KERNEL);
822 if (!result)
823 return ERR_PTR(-ENOMEM);
824
825 result->def = -1;
826 result->defmgmt = -1;
827
828 nla_for_each_nested(key, keys, rem) {
829 memset(&parse, 0, sizeof(parse));
830 parse.idx = -1;
831
832 err = nl80211_parse_key_new(key, &parse);
833 if (err)
834 goto error;
835 err = -EINVAL;
836 if (!parse.p.key)
837 goto error;
838 if (parse.idx < 0 || parse.idx > 4)
839 goto error;
840 if (parse.def) {
841 if (def)
842 goto error;
843 def = 1;
844 result->def = parse.idx;
dbd2fd65
JB		 845 if (!parse.def_uni || !parse.def_multi)
846 goto error;
fffd0934
JB		 847 } else if (parse.defmgmt)
848 goto error;
849 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 850 parse.idx, false, NULL);
fffd0934
JB		 851 if (err)
852 goto error;
853 result->params[parse.idx].cipher = parse.p.cipher;
854 result->params[parse.idx].key_len = parse.p.key_len;
855 result->params[parse.idx].key = result->data[parse.idx];
856 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 857
858 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
859 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
860 if (no_ht)
861 *no_ht = true;
862 }
fffd0934
JB		 863 }
864
865 return result;
866 error:
867 kfree(result);
868 return ERR_PTR(err);
869}
870
871static int nl80211_key_allowed(struct wireless_dev *wdev)
872{
873 ASSERT_WDEV_LOCK(wdev);
874
fffd0934
JB		 875 switch (wdev->iftype) {
876 case NL80211_IFTYPE_AP:
877 case NL80211_IFTYPE_AP_VLAN:
074ac8df 878 case NL80211_IFTYPE_P2P_GO:
ff973af7 879 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 880 break;
881 case NL80211_IFTYPE_ADHOC:
fffd0934 882 case NL80211_IFTYPE_STATION:
074ac8df 883 case NL80211_IFTYPE_P2P_CLIENT:
ceca7b71 884 if (!wdev->current_bss)
fffd0934
JB		 885 return -ENOLINK;
886 break;
887 default:
888 return -EINVAL;
889 }
890
891 return 0;
892}
893
664834de
JM		 894static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
895 struct nlattr *tb)
896{
897 struct ieee80211_channel *chan;
898
899 if (tb == NULL)
900 return NULL;
901 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
902 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
903 return NULL;
904 return chan;
905}
906
7527a782
JB		 907static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
908{
909 struct nlattr *nl_modes = nla_nest_start(msg, attr);
910 int i;
911
912 if (!nl_modes)
913 goto nla_put_failure;
914
915 i = 0;
916 while (ifmodes) {
9360ffd1
DM		 917 if ((ifmodes & 1) && nla_put_flag(msg, i))
918 goto nla_put_failure;
7527a782
JB		 919 ifmodes >>= 1;
920 i++;
921 }
922
923 nla_nest_end(msg, nl_modes);
924 return 0;
925
926nla_put_failure:
927 return -ENOBUFS;
928}
929
930static int nl80211_put_iface_combinations(struct wiphy *wiphy,
cdc89b97
JB		 931 struct sk_buff *msg,
932 bool large)
7527a782
JB		 933{
934 struct nlattr *nl_combis;
935 int i, j;
936
937 nl_combis = nla_nest_start(msg,
938 NL80211_ATTR_INTERFACE_COMBINATIONS);
939 if (!nl_combis)
940 goto nla_put_failure;
941
942 for (i = 0; i < wiphy->n_iface_combinations; i++) {
943 const struct ieee80211_iface_combination *c;
944 struct nlattr *nl_combi, *nl_limits;
945
946 c = &wiphy->iface_combinations[i];
947
948 nl_combi = nla_nest_start(msg, i + 1);
949 if (!nl_combi)
950 goto nla_put_failure;
951
952 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
953 if (!nl_limits)
954 goto nla_put_failure;
955
956 for (j = 0; j < c->n_limits; j++) {
957 struct nlattr *nl_limit;
958
959 nl_limit = nla_nest_start(msg, j + 1);
960 if (!nl_limit)
961 goto nla_put_failure;
9360ffd1
DM		 962 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
963 c->limits[j].max))
964 goto nla_put_failure;
7527a782
JB		 965 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
966 c->limits[j].types))
967 goto nla_put_failure;
968 nla_nest_end(msg, nl_limit);
969 }
970
971 nla_nest_end(msg, nl_limits);
972
9360ffd1
DM		 973 if (c->beacon_int_infra_match &&
974 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
975 goto nla_put_failure;
976 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
977 c->num_different_channels) ||
978 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
979 c->max_interfaces))
980 goto nla_put_failure;
cdc89b97 981 if (large &&
8c48b50a
FF		 982 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
983 c->radar_detect_widths) ||
984 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
985 c->radar_detect_regions)))
cdc89b97 986 goto nla_put_failure;
7527a782
JB		 987
988 nla_nest_end(msg, nl_combi);
989 }
990
991 nla_nest_end(msg, nl_combis);
992
993 return 0;
994nla_put_failure:
995 return -ENOBUFS;
996}
997
3713b4e3 998#ifdef CONFIG_PM
b56cf720
JB		 999static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1000 struct sk_buff *msg)
1001{
964dc9e2 1002 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
b56cf720
JB		 1003 struct nlattr *nl_tcp;
1004
1005 if (!tcp)
1006 return 0;
1007
1008 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1009 if (!nl_tcp)
1010 return -ENOBUFS;
1011
1012 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1013 tcp->data_payload_max))
1014 return -ENOBUFS;
1015
1016 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1017 tcp->data_payload_max))
1018 return -ENOBUFS;
1019
1020 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1021 return -ENOBUFS;
1022
1023 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1024 sizeof(*tcp->tok), tcp->tok))
1025 return -ENOBUFS;
1026
1027 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1028 tcp->data_interval_max))
1029 return -ENOBUFS;
1030
1031 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1032 tcp->wake_payload_max))
1033 return -ENOBUFS;
1034
1035 nla_nest_end(msg, nl_tcp);
1036 return 0;
1037}
1038
3713b4e3 1039static int nl80211_send_wowlan(struct sk_buff *msg,
1b8ec87a 1040 struct cfg80211_registered_device *rdev,
b56cf720 1041 bool large)
55682965 1042{
3713b4e3 1043 struct nlattr *nl_wowlan;
55682965 1044
1b8ec87a 1045 if (!rdev->wiphy.wowlan)
3713b4e3 1046 return 0;
55682965 1047
3713b4e3
JB		 1048 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1049 if (!nl_wowlan)
1050 return -ENOBUFS;
9360ffd1 1051
1b8ec87a 1052 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
3713b4e3 1053 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1b8ec87a 1054 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
3713b4e3 1055 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1b8ec87a 1056 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
3713b4e3 1057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1b8ec87a 1058 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
3713b4e3 1059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1b8ec87a 1060 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
3713b4e3 1061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1b8ec87a 1062 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
3713b4e3 1063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1b8ec87a 1064 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
3713b4e3 1065 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1b8ec87a 1066 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
3713b4e3
JB		 1067 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1068 return -ENOBUFS;
9360ffd1 1069
1b8ec87a 1070 if (rdev->wiphy.wowlan->n_patterns) {
50ac6607 1071 struct nl80211_pattern_support pat = {
1b8ec87a
ZG		 1072 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1073 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1074 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1075 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
3713b4e3 1076 };
9360ffd1 1077
3713b4e3
JB		 1078 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1079 sizeof(pat), &pat))
1080 return -ENOBUFS;
1081 }
9360ffd1 1082
1b8ec87a 1083 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
b56cf720
JB		 1084 return -ENOBUFS;
1085
3713b4e3 1086 nla_nest_end(msg, nl_wowlan);
9360ffd1 1087
3713b4e3
JB		 1088 return 0;
1089}
1090#endif
9360ffd1 1091
be29b99a 1092static int nl80211_send_coalesce(struct sk_buff *msg,
1b8ec87a 1093 struct cfg80211_registered_device *rdev)
be29b99a
AK		 1094{
1095 struct nl80211_coalesce_rule_support rule;
1096
1b8ec87a 1097 if (!rdev->wiphy.coalesce)
be29b99a
AK		 1098 return 0;
1099
1b8ec87a
ZG		 1100 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1101 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1102 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1103 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1104 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1105 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
be29b99a
AK		 1106
1107 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1108 return -ENOBUFS;
1109
1110 return 0;
1111}
1112
3713b4e3
JB		 1113static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1114 struct ieee80211_supported_band *sband)
1115{
1116 struct nlattr *nl_rates, *nl_rate;
1117 struct ieee80211_rate *rate;
1118 int i;
87bbbe22 1119
3713b4e3
JB		 1120 /* add HT info */
1121 if (sband->ht_cap.ht_supported &&
1122 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1123 sizeof(sband->ht_cap.mcs),
1124 &sband->ht_cap.mcs) ||
1125 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1126 sband->ht_cap.cap) ||
1127 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1128 sband->ht_cap.ampdu_factor) ||
1129 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1130 sband->ht_cap.ampdu_density)))
1131 return -ENOBUFS;
afe0cbf8 1132
3713b4e3
JB		 1133 /* add VHT info */
1134 if (sband->vht_cap.vht_supported &&
1135 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1136 sizeof(sband->vht_cap.vht_mcs),
1137 &sband->vht_cap.vht_mcs) ||
1138 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1139 sband->vht_cap.cap)))
1140 return -ENOBUFS;
f59ac048 1141
3713b4e3
JB		 1142 /* add bitrates */
1143 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1144 if (!nl_rates)
1145 return -ENOBUFS;
ee688b00 1146
3713b4e3
JB		 1147 for (i = 0; i < sband->n_bitrates; i++) {
1148 nl_rate = nla_nest_start(msg, i);
1149 if (!nl_rate)
1150 return -ENOBUFS;
ee688b00 1151
3713b4e3
JB		 1152 rate = &sband->bitrates[i];
1153 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1154 rate->bitrate))
1155 return -ENOBUFS;
1156 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1157 nla_put_flag(msg,
1158 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1159 return -ENOBUFS;
ee688b00 1160
3713b4e3
JB		 1161 nla_nest_end(msg, nl_rate);
1162 }
d51626df 1163
3713b4e3 1164 nla_nest_end(msg, nl_rates);
bf0c111e 1165
3713b4e3
JB		 1166 return 0;
1167}
ee688b00 1168
3713b4e3
JB		 1169static int
1170nl80211_send_mgmt_stypes(struct sk_buff *msg,
1171 const struct ieee80211_txrx_stypes *mgmt_stypes)
1172{
1173 u16 stypes;
1174 struct nlattr *nl_ftypes, *nl_ifs;
1175 enum nl80211_iftype ift;
1176 int i;
ee688b00 1177
3713b4e3
JB		 1178 if (!mgmt_stypes)
1179 return 0;
5dab3b8a 1180
3713b4e3
JB		 1181 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1182 if (!nl_ifs)
1183 return -ENOBUFS;
e2f367f2 1184
3713b4e3
JB		 1185 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1186 nl_ftypes = nla_nest_start(msg, ift);
1187 if (!nl_ftypes)
1188 return -ENOBUFS;
1189 i = 0;
1190 stypes = mgmt_stypes[ift].tx;
1191 while (stypes) {
1192 if ((stypes & 1) &&
1193 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1194 (i << 4) | IEEE80211_FTYPE_MGMT))
1195 return -ENOBUFS;
1196 stypes >>= 1;
1197 i++;
ee688b00 1198 }
3713b4e3
JB		 1199 nla_nest_end(msg, nl_ftypes);
1200 }
ee688b00 1201
3713b4e3 1202 nla_nest_end(msg, nl_ifs);
ee688b00 1203
3713b4e3
JB		 1204 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1205 if (!nl_ifs)
1206 return -ENOBUFS;
ee688b00 1207
3713b4e3
JB		 1208 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1209 nl_ftypes = nla_nest_start(msg, ift);
1210 if (!nl_ftypes)
1211 return -ENOBUFS;
1212 i = 0;
1213 stypes = mgmt_stypes[ift].rx;
1214 while (stypes) {
1215 if ((stypes & 1) &&
1216 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1217 (i << 4) | IEEE80211_FTYPE_MGMT))
1218 return -ENOBUFS;
1219 stypes >>= 1;
1220 i++;
1221 }
1222 nla_nest_end(msg, nl_ftypes);
1223 }
1224 nla_nest_end(msg, nl_ifs);
ee688b00 1225
3713b4e3
JB		 1226 return 0;
1227}
ee688b00 1228
86e8cf98
JB		 1229struct nl80211_dump_wiphy_state {
1230 s64 filter_wiphy;
1231 long start;
1232 long split_start, band_start, chan_start;
1233 bool split;
1234};
1235
1b8ec87a 1236static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
3bb20556 1237 enum nl80211_commands cmd,
3713b4e3 1238 struct sk_buff *msg, u32 portid, u32 seq,
86e8cf98 1239 int flags, struct nl80211_dump_wiphy_state *state)
3713b4e3
JB		 1240{
1241 void *hdr;
1242 struct nlattr *nl_bands, *nl_band;
1243 struct nlattr *nl_freqs, *nl_freq;
1244 struct nlattr *nl_cmds;
1245 enum ieee80211_band band;
1246 struct ieee80211_channel *chan;
1247 int i;
1248 const struct ieee80211_txrx_stypes *mgmt_stypes =
1b8ec87a 1249 rdev->wiphy.mgmt_stypes;
fe1abafd 1250 u32 features;
ee688b00 1251
3bb20556 1252 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3713b4e3
JB		 1253 if (!hdr)
1254 return -ENOBUFS;
ee688b00 1255
86e8cf98
JB		 1256 if (WARN_ON(!state))
1257 return -EINVAL;
ee688b00 1258
1b8ec87a 1259 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
3713b4e3 1260 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1b8ec87a 1261 wiphy_name(&rdev->wiphy)) ||
3713b4e3
JB		 1262 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1263 cfg80211_rdev_list_generation))
8fdc621d
JB		 1264 goto nla_put_failure;
1265
3bb20556
JB		 1266 if (cmd != NL80211_CMD_NEW_WIPHY)
1267 goto finish;
1268
86e8cf98 1269 switch (state->split_start) {
3713b4e3
JB		 1270 case 0:
1271 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1b8ec87a 1272 rdev->wiphy.retry_short) ||
3713b4e3 1273 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1b8ec87a 1274 rdev->wiphy.retry_long) ||
3713b4e3 1275 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1b8ec87a 1276 rdev->wiphy.frag_threshold) ||
3713b4e3 1277 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1b8ec87a 1278 rdev->wiphy.rts_threshold) ||
3713b4e3 1279 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1b8ec87a 1280 rdev->wiphy.coverage_class) ||
3713b4e3 1281 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1b8ec87a 1282 rdev->wiphy.max_scan_ssids) ||
3713b4e3 1283 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1b8ec87a 1284 rdev->wiphy.max_sched_scan_ssids) ||
3713b4e3 1285 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1b8ec87a 1286 rdev->wiphy.max_scan_ie_len) ||
3713b4e3 1287 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1b8ec87a 1288 rdev->wiphy.max_sched_scan_ie_len) ||
3713b4e3 1289 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1b8ec87a 1290 rdev->wiphy.max_match_sets))
9360ffd1 1291 goto nla_put_failure;
3713b4e3 1292
1b8ec87a 1293 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
3713b4e3 1294 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
aa430da4 1295 goto nla_put_failure;
1b8ec87a 1296 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
3713b4e3
JB		 1297 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1298 goto nla_put_failure;
1b8ec87a 1299 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3713b4e3
JB		 1300 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1301 goto nla_put_failure;
1b8ec87a 1302 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
3713b4e3
JB		 1303 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1304 goto nla_put_failure;
1b8ec87a 1305 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
3713b4e3
JB		 1306 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1307 goto nla_put_failure;
1b8ec87a 1308 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
3713b4e3 1309 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
9360ffd1 1310 goto nla_put_failure;
86e8cf98
JB		 1311 state->split_start++;
1312 if (state->split)
3713b4e3
JB		 1313 break;
1314 case 1:
1315 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1b8ec87a
ZG		 1316 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1317 rdev->wiphy.cipher_suites))
3713b4e3 1318 goto nla_put_failure;
4745fc09 1319
3713b4e3 1320 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1b8ec87a 1321 rdev->wiphy.max_num_pmkids))
3713b4e3 1322 goto nla_put_failure;
b23aa676 1323
1b8ec87a 1324 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3713b4e3 1325 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
9360ffd1 1326 goto nla_put_failure;
b23aa676 1327
3713b4e3 1328 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1b8ec87a 1329 rdev->wiphy.available_antennas_tx) ||
3713b4e3 1330 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1b8ec87a 1331 rdev->wiphy.available_antennas_rx))
9360ffd1 1332 goto nla_put_failure;
b23aa676 1333
1b8ec87a 1334 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
3713b4e3 1335 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1b8ec87a 1336 rdev->wiphy.probe_resp_offload))
3713b4e3 1337 goto nla_put_failure;
8fdc621d 1338
1b8ec87a
ZG		 1339 if ((rdev->wiphy.available_antennas_tx ||
1340 rdev->wiphy.available_antennas_rx) &&
1341 rdev->ops->get_antenna) {
3713b4e3
JB		 1342 u32 tx_ant = 0, rx_ant = 0;
1343 int res;
1b8ec87a 1344 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
3713b4e3
JB		 1345 if (!res) {
1346 if (nla_put_u32(msg,
1347 NL80211_ATTR_WIPHY_ANTENNA_TX,
1348 tx_ant) ||
1349 nla_put_u32(msg,
1350 NL80211_ATTR_WIPHY_ANTENNA_RX,
1351 rx_ant))
1352 goto nla_put_failure;
1353 }
1354 }
a293911d 1355
86e8cf98
JB		 1356 state->split_start++;
1357 if (state->split)
3713b4e3
JB		 1358 break;
1359 case 2:
1360 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1b8ec87a 1361 rdev->wiphy.interface_modes))
3713b4e3 1362 goto nla_put_failure;
86e8cf98
JB		 1363 state->split_start++;
1364 if (state->split)
3713b4e3
JB		 1365 break;
1366 case 3:
1367 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1368 if (!nl_bands)
1369 goto nla_put_failure;
f7ca38df 1370
86e8cf98
JB		 1371 for (band = state->band_start;
1372 band < IEEE80211_NUM_BANDS; band++) {
3713b4e3 1373 struct ieee80211_supported_band *sband;
2e161f78 1374
1b8ec87a 1375 sband = rdev->wiphy.bands[band];
2e161f78 1376
3713b4e3
JB		 1377 if (!sband)
1378 continue;
1379
1380 nl_band = nla_nest_start(msg, band);
1381 if (!nl_band)
2e161f78 1382 goto nla_put_failure;
3713b4e3 1383
86e8cf98 1384 switch (state->chan_start) {
3713b4e3
JB		 1385 case 0:
1386 if (nl80211_send_band_rateinfo(msg, sband))
9360ffd1 1387 goto nla_put_failure;
86e8cf98
JB		 1388 state->chan_start++;
1389 if (state->split)
3713b4e3
JB		 1390 break;
1391 default:
1392 /* add frequencies */
1393 nl_freqs = nla_nest_start(
1394 msg, NL80211_BAND_ATTR_FREQS);
1395 if (!nl_freqs)
1396 goto nla_put_failure;
1397
86e8cf98 1398 for (i = state->chan_start - 1;
3713b4e3
JB		 1399 i < sband->n_channels;
1400 i++) {
1401 nl_freq = nla_nest_start(msg, i);
1402 if (!nl_freq)
1403 goto nla_put_failure;
1404
1405 chan = &sband->channels[i];
1406
86e8cf98
JB		 1407 if (nl80211_msg_put_channel(
1408 msg, chan,
1409 state->split))
3713b4e3
JB		 1410 goto nla_put_failure;
1411
1412 nla_nest_end(msg, nl_freq);
86e8cf98 1413 if (state->split)
3713b4e3
JB		 1414 break;
1415 }
1416 if (i < sband->n_channels)
86e8cf98 1417 state->chan_start = i + 2;
3713b4e3 1418 else
86e8cf98 1419 state->chan_start = 0;
3713b4e3
JB		 1420 nla_nest_end(msg, nl_freqs);
1421 }
1422
1423 nla_nest_end(msg, nl_band);
1424
86e8cf98 1425 if (state->split) {
3713b4e3 1426 /* start again here */
86e8cf98 1427 if (state->chan_start)
3713b4e3
JB		 1428 band--;
1429 break;
2e161f78 1430 }
2e161f78 1431 }
3713b4e3 1432 nla_nest_end(msg, nl_bands);
2e161f78 1433
3713b4e3 1434 if (band < IEEE80211_NUM_BANDS)
86e8cf98 1435 state->band_start = band + 1;
3713b4e3 1436 else
86e8cf98 1437 state->band_start = 0;
74b70a4e 1438
3713b4e3 1439 /* if bands & channels are done, continue outside */
86e8cf98
JB		 1440 if (state->band_start == 0 && state->chan_start == 0)
1441 state->split_start++;
1442 if (state->split)
3713b4e3
JB		 1443 break;
1444 case 4:
1445 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1446 if (!nl_cmds)
2e161f78
JB		 1447 goto nla_put_failure;
1448
3713b4e3
JB		 1449 i = 0;
1450#define CMD(op, n) \
1451 do { \
1b8ec87a 1452 if (rdev->ops->op) { \
3713b4e3
JB		 1453 i++; \
1454 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1455 goto nla_put_failure; \
1456 } \
1457 } while (0)
1458
1459 CMD(add_virtual_intf, NEW_INTERFACE);
1460 CMD(change_virtual_intf, SET_INTERFACE);
1461 CMD(add_key, NEW_KEY);
1462 CMD(start_ap, START_AP);
1463 CMD(add_station, NEW_STATION);
1464 CMD(add_mpath, NEW_MPATH);
1465 CMD(update_mesh_config, SET_MESH_CONFIG);
1466 CMD(change_bss, SET_BSS);
1467 CMD(auth, AUTHENTICATE);
1468 CMD(assoc, ASSOCIATE);
1469 CMD(deauth, DEAUTHENTICATE);
1470 CMD(disassoc, DISASSOCIATE);
1471 CMD(join_ibss, JOIN_IBSS);
1472 CMD(join_mesh, JOIN_MESH);
1473 CMD(set_pmksa, SET_PMKSA);
1474 CMD(del_pmksa, DEL_PMKSA);
1475 CMD(flush_pmksa, FLUSH_PMKSA);
1b8ec87a 1476 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
3713b4e3
JB		 1477 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1478 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1479 CMD(mgmt_tx, FRAME);
1480 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1b8ec87a 1481 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
3713b4e3
JB		 1482 i++;
1483 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
2e161f78 1484 goto nla_put_failure;
2e161f78 1485 }
1b8ec87a
ZG		 1486 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1487 rdev->ops->join_mesh) {
3713b4e3
JB		 1488 i++;
1489 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1490 goto nla_put_failure;
1491 }
1492 CMD(set_wds_peer, SET_WDS_PEER);
1b8ec87a 1493 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
3713b4e3
JB		 1494 CMD(tdls_mgmt, TDLS_MGMT);
1495 CMD(tdls_oper, TDLS_OPER);
1496 }
1b8ec87a 1497 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
3713b4e3
JB		 1498 CMD(sched_scan_start, START_SCHED_SCAN);
1499 CMD(probe_client, PROBE_CLIENT);
1500 CMD(set_noack_map, SET_NOACK_MAP);
1b8ec87a 1501 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
3713b4e3
JB		 1502 i++;
1503 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1504 goto nla_put_failure;
1505 }
1506 CMD(start_p2p_device, START_P2P_DEVICE);
1507 CMD(set_mcast_rate, SET_MCAST_RATE);
02df00eb
JB		 1508#ifdef CONFIG_NL80211_TESTMODE
1509 CMD(testmode_cmd, TESTMODE);
1510#endif
86e8cf98 1511 if (state->split) {
5de17984
AS		 1512 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1513 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1b8ec87a 1514 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
16ef1fe2 1515 CMD(channel_switch, CHANNEL_SWITCH);
02df00eb 1516 CMD(set_qos_map, SET_QOS_MAP);
960d01ac
JB		 1517 if (rdev->wiphy.flags &
1518 WIPHY_FLAG_SUPPORTS_WMM_ADMISSION)
1519 CMD(add_tx_ts, ADD_TX_TS);
5de17984 1520 }
02df00eb 1521 /* add into the if now */
3713b4e3 1522#undef CMD
ff1b6e69 1523
1b8ec87a 1524 if (rdev->ops->connect || rdev->ops->auth) {
3713b4e3
JB		 1525 i++;
1526 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
9360ffd1 1527 goto nla_put_failure;
ff1b6e69
JB		 1528 }
1529
1b8ec87a 1530 if (rdev->ops->disconnect || rdev->ops->deauth) {
3713b4e3
JB		 1531 i++;
1532 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1533 goto nla_put_failure;
1534 }
1535
1536 nla_nest_end(msg, nl_cmds);
86e8cf98
JB		 1537 state->split_start++;
1538 if (state->split)
3713b4e3
JB		 1539 break;
1540 case 5:
1b8ec87a
ZG		 1541 if (rdev->ops->remain_on_channel &&
1542 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
3713b4e3
JB		 1543 nla_put_u32(msg,
1544 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1b8ec87a 1545 rdev->wiphy.max_remain_on_channel_duration))
3713b4e3
JB		 1546 goto nla_put_failure;
1547
1b8ec87a 1548 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
3713b4e3
JB		 1549 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1550 goto nla_put_failure;
1551
1552 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1553 goto nla_put_failure;
86e8cf98
JB		 1554 state->split_start++;
1555 if (state->split)
3713b4e3
JB		 1556 break;
1557 case 6:
1558#ifdef CONFIG_PM
1b8ec87a 1559 if (nl80211_send_wowlan(msg, rdev, state->split))
3713b4e3 1560 goto nla_put_failure;
86e8cf98
JB		 1561 state->split_start++;
1562 if (state->split)
3713b4e3
JB		 1563 break;
1564#else
86e8cf98 1565 state->split_start++;
dfb89c56 1566#endif
3713b4e3
JB		 1567 case 7:
1568 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1b8ec87a 1569 rdev->wiphy.software_iftypes))
3713b4e3 1570 goto nla_put_failure;
ff1b6e69 1571
1b8ec87a 1572 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
86e8cf98 1573 state->split))
3713b4e3 1574 goto nla_put_failure;
7527a782 1575
86e8cf98
JB		 1576 state->split_start++;
1577 if (state->split)
3713b4e3
JB		 1578 break;
1579 case 8:
1b8ec87a 1580 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
3713b4e3 1581 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1b8ec87a 1582 rdev->wiphy.ap_sme_capa))
3713b4e3 1583 goto nla_put_failure;
7527a782 1584
1b8ec87a 1585 features = rdev->wiphy.features;
fe1abafd
JB		 1586 /*
1587 * We can only add the per-channel limit information if the
1588 * dump is split, otherwise it makes it too big. Therefore
1589 * only advertise it in that case.
1590 */
86e8cf98 1591 if (state->split)
fe1abafd
JB		 1592 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1593 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
3713b4e3 1594 goto nla_put_failure;
562a7480 1595
1b8ec87a 1596 if (rdev->wiphy.ht_capa_mod_mask &&
3713b4e3 1597 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1b8ec87a
ZG		 1598 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1599 rdev->wiphy.ht_capa_mod_mask))
3713b4e3 1600 goto nla_put_failure;
1f074bd8 1601
1b8ec87a
ZG		 1602 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1603 rdev->wiphy.max_acl_mac_addrs &&
3713b4e3 1604 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1b8ec87a 1605 rdev->wiphy.max_acl_mac_addrs))
3713b4e3 1606 goto nla_put_failure;
7e7c8926 1607
3713b4e3
JB		 1608 /*
1609 * Any information below this point is only available to
1610 * applications that can deal with it being split. This
1611 * helps ensure that newly added capabilities don't break
1612 * older tools by overrunning their buffers.
1613 *
1614 * We still increment split_start so that in the split
1615 * case we'll continue with more data in the next round,
1616 * but break unconditionally so unsplit data stops here.
1617 */
86e8cf98 1618 state->split_start++;
3713b4e3
JB		 1619 break;
1620 case 9:
1b8ec87a 1621 if (rdev->wiphy.extended_capabilities &&
fe1abafd 1622 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1b8ec87a
ZG		 1623 rdev->wiphy.extended_capabilities_len,
1624 rdev->wiphy.extended_capabilities) ||
fe1abafd 1625 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1b8ec87a
ZG		 1626 rdev->wiphy.extended_capabilities_len,
1627 rdev->wiphy.extended_capabilities_mask)))
fe1abafd 1628 goto nla_put_failure;
a50df0c4 1629
1b8ec87a 1630 if (rdev->wiphy.vht_capa_mod_mask &&
ee2aca34 1631 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1b8ec87a
ZG		 1632 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1633 rdev->wiphy.vht_capa_mod_mask))
ee2aca34
JB		 1634 goto nla_put_failure;
1635
be29b99a
AK		 1636 state->split_start++;
1637 break;
1638 case 10:
1b8ec87a 1639 if (nl80211_send_coalesce(msg, rdev))
be29b99a
AK		 1640 goto nla_put_failure;
1641
1b8ec87a 1642 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
01e0daa4
FF		 1643 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1644 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1645 goto nla_put_failure;
b43504cf 1646
1b8ec87a 1647 if (rdev->wiphy.max_ap_assoc_sta &&
b43504cf 1648 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1b8ec87a 1649 rdev->wiphy.max_ap_assoc_sta))
b43504cf
JM		 1650 goto nla_put_failure;
1651
ad7e718c
JB		 1652 state->split_start++;
1653 break;
1654 case 11:
1b8ec87a 1655 if (rdev->wiphy.n_vendor_commands) {
567ffc35
JB		 1656 const struct nl80211_vendor_cmd_info *info;
1657 struct nlattr *nested;
1658
1659 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1660 if (!nested)
1661 goto nla_put_failure;
1662
1b8ec87a
ZG		 1663 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1664 info = &rdev->wiphy.vendor_commands[i].info;
567ffc35
JB		 1665 if (nla_put(msg, i + 1, sizeof(*info), info))
1666 goto nla_put_failure;
1667 }
1668 nla_nest_end(msg, nested);
1669 }
1670
1b8ec87a 1671 if (rdev->wiphy.n_vendor_events) {
567ffc35
JB		 1672 const struct nl80211_vendor_cmd_info *info;
1673 struct nlattr *nested;
ad7e718c 1674
567ffc35
JB		 1675 nested = nla_nest_start(msg,
1676 NL80211_ATTR_VENDOR_EVENTS);
1677 if (!nested)
ad7e718c 1678 goto nla_put_failure;
567ffc35 1679
1b8ec87a
ZG		 1680 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1681 info = &rdev->wiphy.vendor_events[i];
567ffc35
JB		 1682 if (nla_put(msg, i + 1, sizeof(*info), info))
1683 goto nla_put_failure;
1684 }
1685 nla_nest_end(msg, nested);
1686 }
9a774c78
AO		 1687 state->split_start++;
1688 break;
1689 case 12:
1690 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1691 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1692 rdev->wiphy.max_num_csa_counters))
1693 goto nla_put_failure;
01e0daa4 1694
3713b4e3 1695 /* done */
86e8cf98 1696 state->split_start = 0;
3713b4e3
JB		 1697 break;
1698 }
3bb20556 1699 finish:
55682965
JB		 1700 return genlmsg_end(msg, hdr);
1701
1702 nla_put_failure:
bc3ed28c
TG		 1703 genlmsg_cancel(msg, hdr);
1704 return -EMSGSIZE;
55682965
JB		 1705}
1706
86e8cf98
JB		 1707static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1708 struct netlink_callback *cb,
1709 struct nl80211_dump_wiphy_state *state)
1710{
1711 struct nlattr **tb = nl80211_fam.attrbuf;
1712 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1713 tb, nl80211_fam.maxattr, nl80211_policy);
1714 /* ignore parse errors for backward compatibility */
1715 if (ret)
1716 return 0;
1717
1718 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1719 if (tb[NL80211_ATTR_WIPHY])
1720 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1721 if (tb[NL80211_ATTR_WDEV])
1722 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1723 if (tb[NL80211_ATTR_IFINDEX]) {
1724 struct net_device *netdev;
1725 struct cfg80211_registered_device *rdev;
1726 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1727
7f2b8562 1728 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
86e8cf98
JB		 1729 if (!netdev)
1730 return -ENODEV;
1731 if (netdev->ieee80211_ptr) {
f26cbf40 1732 rdev = wiphy_to_rdev(
86e8cf98
JB		 1733 netdev->ieee80211_ptr->wiphy);
1734 state->filter_wiphy = rdev->wiphy_idx;
1735 }
86e8cf98
JB		 1736 }
1737
1738 return 0;
1739}
1740
55682965
JB		 1741static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1742{
645e77de 1743 int idx = 0, ret;
86e8cf98 1744 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1b8ec87a 1745 struct cfg80211_registered_device *rdev;
3a5a423b 1746
5fe231e8 1747 rtnl_lock();
86e8cf98
JB		 1748 if (!state) {
1749 state = kzalloc(sizeof(*state), GFP_KERNEL);
57ed5cd6
JL		 1750 if (!state) {
1751 rtnl_unlock();
86e8cf98 1752 return -ENOMEM;
3713b4e3 1753 }
86e8cf98
JB		 1754 state->filter_wiphy = -1;
1755 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1756 if (ret) {
1757 kfree(state);
1758 rtnl_unlock();
1759 return ret;
3713b4e3 1760 }
86e8cf98 1761 cb->args[0] = (long)state;
3713b4e3
JB		 1762 }
1763
1b8ec87a
ZG		 1764 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1765 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1766 continue;
86e8cf98 1767 if (++idx <= state->start)
55682965 1768 continue;
86e8cf98 1769 if (state->filter_wiphy != -1 &&
1b8ec87a 1770 state->filter_wiphy != rdev->wiphy_idx)
3713b4e3
JB		 1771 continue;
1772 /* attempt to fit multiple wiphy data chunks into the skb */
1773 do {
3bb20556
JB		 1774 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1775 skb,
3713b4e3
JB		 1776 NETLINK_CB(cb->skb).portid,
1777 cb->nlh->nlmsg_seq,
86e8cf98 1778 NLM_F_MULTI, state);
3713b4e3
JB		 1779 if (ret < 0) {
1780 /*
1781 * If sending the wiphy data didn't fit (ENOBUFS
1782 * or EMSGSIZE returned), this SKB is still
1783 * empty (so it's not too big because another
1784 * wiphy dataset is already in the skb) and
1785 * we've not tried to adjust the dump allocation
1786 * yet ... then adjust the alloc size to be
1787 * bigger, and return 1 but with the empty skb.
1788 * This results in an empty message being RX'ed
1789 * in userspace, but that is ignored.
1790 *
1791 * We can then retry with the larger buffer.
1792 */
1793 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
f12cb289 1794 !skb->len && !state->split &&
3713b4e3
JB		 1795 cb->min_dump_alloc < 4096) {
1796 cb->min_dump_alloc = 4096;
f12cb289 1797 state->split_start = 0;
d98cae64 1798 rtnl_unlock();
3713b4e3
JB		 1799 return 1;
1800 }
1801 idx--;
1802 break;
645e77de 1803 }
86e8cf98 1804 } while (state->split_start > 0);
3713b4e3 1805 break;
55682965 1806 }
5fe231e8 1807 rtnl_unlock();
55682965 1808
86e8cf98 1809 state->start = idx;
55682965
JB		 1810
1811 return skb->len;
1812}
1813
86e8cf98
JB		 1814static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1815{
1816 kfree((void *)cb->args[0]);
1817 return 0;
1818}
1819
55682965
JB		 1820static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1821{
1822 struct sk_buff *msg;
1b8ec87a 1823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
86e8cf98 1824 struct nl80211_dump_wiphy_state state = {};
55682965 1825
645e77de 1826 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1827 if (!msg)
4c476991 1828 return -ENOMEM;
55682965 1829
3bb20556
JB		 1830 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1831 info->snd_portid, info->snd_seq, 0,
86e8cf98 1832 &state) < 0) {
4c476991
JB		 1833 nlmsg_free(msg);
1834 return -ENOBUFS;
1835 }
55682965 1836
134e6375 1837 return genlmsg_reply(msg, info);
55682965
JB		 1838}
1839
31888487
JM		 1840static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1841 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1842 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1843 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1844 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1845 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1846};
1847
1848static int parse_txq_params(struct nlattr *tb[],
1849 struct ieee80211_txq_params *txq_params)
1850{
a3304b0a 1851 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1852 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1853 !tb[NL80211_TXQ_ATTR_AIFS])
1854 return -EINVAL;
1855
a3304b0a 1856 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1857 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1858 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1859 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1860 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1861
a3304b0a
JB		 1862 if (txq_params->ac >= NL80211_NUM_ACS)
1863 return -EINVAL;
1864
31888487
JM		 1865 return 0;
1866}
1867
f444de05
JB		 1868static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1869{
1870 /*
cc1d2806
JB		 1871 * You can only set the channel explicitly for WDS interfaces,
1872 * all others have their channel managed via their respective
1873 * "establish a connection" command (connect, join, ...)
1874 *
1875 * For AP/GO and mesh mode, the channel can be set with the
1876 * channel userspace API, but is only stored and passed to the
1877 * low-level driver when the AP starts or the mesh is joined.
1878 * This is for backward compatibility, userspace can also give
1879 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1880 *
1881 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1882 * whatever else is going on, so they have their own special
1883 * operation to set the monitor channel if possible.
f444de05
JB		 1884 */
1885 return !wdev ||
1886 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1887 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1888 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1889 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1890}
1891
683b6d3b
JB		 1892static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1893 struct genl_info *info,
1894 struct cfg80211_chan_def *chandef)
1895{
dbeca2ea 1896 u32 control_freq;
683b6d3b
JB		 1897
1898 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1899 return -EINVAL;
1900
1901 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1902
1903 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1904 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1905 chandef->center_freq1 = control_freq;
1906 chandef->center_freq2 = 0;
683b6d3b
JB		 1907
1908 /* Primary channel not allowed */
1909 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1910 return -EINVAL;
1911
3d9d1d66
JB		 1912 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1913 enum nl80211_channel_type chantype;
1914
1915 chantype = nla_get_u32(
1916 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1917
1918 switch (chantype) {
1919 case NL80211_CHAN_NO_HT:
1920 case NL80211_CHAN_HT20:
1921 case NL80211_CHAN_HT40PLUS:
1922 case NL80211_CHAN_HT40MINUS:
1923 cfg80211_chandef_create(chandef, chandef->chan,
1924 chantype);
1925 break;
1926 default:
1927 return -EINVAL;
1928 }
1929 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1930 chandef->width =
1931 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1932 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1933 chandef->center_freq1 =
1934 nla_get_u32(
1935 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1936 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1937 chandef->center_freq2 =
1938 nla_get_u32(
1939 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1940 }
1941
9f5e8f6e 1942 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1943 return -EINVAL;
1944
9f5e8f6e
JB		 1945 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1946 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1947 return -EINVAL;
1948
2f301ab2
SW		 1949 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1950 chandef->width == NL80211_CHAN_WIDTH_10) &&
1951 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1952 return -EINVAL;
1953
683b6d3b
JB		 1954 return 0;
1955}
1956
f444de05 1957static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
e16821bc 1958 struct net_device *dev,
f444de05
JB		 1959 struct genl_info *info)
1960{
683b6d3b 1961 struct cfg80211_chan_def chandef;
f444de05 1962 int result;
e8c9bd5b 1963 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
e16821bc 1964 struct wireless_dev *wdev = NULL;
e8c9bd5b 1965
e16821bc
JM		 1966 if (dev)
1967 wdev = dev->ieee80211_ptr;
f444de05
JB		 1968 if (!nl80211_can_set_dev_channel(wdev))
1969 return -EOPNOTSUPP;
e16821bc
JM		 1970 if (wdev)
1971 iftype = wdev->iftype;
f444de05 1972
683b6d3b
JB		 1973 result = nl80211_parse_chandef(rdev, info, &chandef);
1974 if (result)
1975 return result;
f444de05 1976
e8c9bd5b 1977 switch (iftype) {
aa430da4
JB		 1978 case NL80211_IFTYPE_AP:
1979 case NL80211_IFTYPE_P2P_GO:
174e0cd2 1980 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
aa430da4
JB		 1981 result = -EINVAL;
1982 break;
1983 }
e16821bc
JM		 1984 if (wdev->beacon_interval) {
1985 if (!dev || !rdev->ops->set_ap_chanwidth ||
1986 !(rdev->wiphy.features &
1987 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1988 result = -EBUSY;
1989 break;
1990 }
1991
1992 /* Only allow dynamic channel width changes */
1993 if (chandef.chan != wdev->preset_chandef.chan) {
1994 result = -EBUSY;
1995 break;
1996 }
1997 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1998 if (result)
1999 break;
2000 }
683b6d3b 2001 wdev->preset_chandef = chandef;
aa430da4
JB		 2002 result = 0;
2003 break;
cc1d2806 2004 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 2005 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 2006 break;
e8c9bd5b 2007 case NL80211_IFTYPE_MONITOR:
683b6d3b 2008 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 2009 break;
aa430da4 2010 default:
e8c9bd5b 2011 result = -EINVAL;
f444de05 2012 }
f444de05
JB		 2013
2014 return result;
2015}
2016
2017static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2018{
4c476991
JB		 2019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2020 struct net_device *netdev = info->user_ptr[1];
f444de05 2021
e16821bc 2022 return __nl80211_set_channel(rdev, netdev, info);
f444de05
JB		 2023}
2024
e8347eba
BJ		 2025static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2026{
43b19952
JB		 2027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2028 struct net_device *dev = info->user_ptr[1];
2029 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 2030 const u8 *bssid;
e8347eba
BJ		 2031
2032 if (!info->attrs[NL80211_ATTR_MAC])
2033 return -EINVAL;
2034
43b19952
JB		 2035 if (netif_running(dev))
2036 return -EBUSY;
e8347eba 2037
43b19952
JB		 2038 if (!rdev->ops->set_wds_peer)
2039 return -EOPNOTSUPP;
e8347eba 2040
43b19952
JB		 2041 if (wdev->iftype != NL80211_IFTYPE_WDS)
2042 return -EOPNOTSUPP;
e8347eba
BJ		 2043
2044 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 2045 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 2046}
2047
2048
55682965
JB		 2049static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2050{
2051 struct cfg80211_registered_device *rdev;
f444de05
JB		 2052 struct net_device *netdev = NULL;
2053 struct wireless_dev *wdev;
a1e567c8 2054 int result = 0, rem_txq_params = 0;
31888487 2055 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 2056 u32 changed;
2057 u8 retry_short = 0, retry_long = 0;
2058 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 2059 u8 coverage_class = 0;
55682965 2060
5fe231e8
JB		 2061 ASSERT_RTNL();
2062
f444de05
JB		 2063 /*
2064 * Try to find the wiphy and netdev. Normally this
2065 * function shouldn't need the netdev, but this is
2066 * done for backward compatibility -- previously
2067 * setting the channel was done per wiphy, but now
2068 * it is per netdev. Previous userland like hostapd
2069 * also passed a netdev to set_wiphy, so that it is
2070 * possible to let that go to the right netdev!
2071 */
4bbf4d56 2072
f444de05
JB		 2073 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2074 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2075
7f2b8562 2076 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
5fe231e8 2077 if (netdev && netdev->ieee80211_ptr)
f26cbf40 2078 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
5fe231e8 2079 else
f444de05 2080 netdev = NULL;
4bbf4d56
JB		 2081 }
2082
f444de05 2083 if (!netdev) {
878d9ec7
JB		 2084 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2085 info->attrs);
5fe231e8 2086 if (IS_ERR(rdev))
4c476991 2087 return PTR_ERR(rdev);
f444de05
JB		 2088 wdev = NULL;
2089 netdev = NULL;
2090 result = 0;
71fe96bf 2091 } else
f444de05 2092 wdev = netdev->ieee80211_ptr;
f444de05
JB		 2093
2094 /*
2095 * end workaround code, by now the rdev is available
2096 * and locked, and wdev may or may not be NULL.
2097 */
4bbf4d56
JB		 2098
2099 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 2100 result = cfg80211_dev_rename(
2101 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56 2102
4bbf4d56 2103 if (result)
7f2b8562 2104 return result;
31888487
JM		 2105
2106 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2107 struct ieee80211_txq_params txq_params;
2108 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2109
7f2b8562
YX		 2110 if (!rdev->ops->set_txq_params)
2111 return -EOPNOTSUPP;
31888487 2112
7f2b8562
YX		 2113 if (!netdev)
2114 return -EINVAL;
f70f01c2 2115
133a3ff2 2116 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
7f2b8562
YX		 2117 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2118 return -EINVAL;
133a3ff2 2119
7f2b8562
YX		 2120 if (!netif_running(netdev))
2121 return -ENETDOWN;
2b5f8b0b 2122
31888487
JM		 2123 nla_for_each_nested(nl_txq_params,
2124 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2125 rem_txq_params) {
ae811e21
JB		 2126 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2127 nla_data(nl_txq_params),
2128 nla_len(nl_txq_params),
2129 txq_params_policy);
2130 if (result)
2131 return result;
31888487
JM		 2132 result = parse_txq_params(tb, &txq_params);
2133 if (result)
7f2b8562 2134 return result;
31888487 2135
e35e4d28
HG		 2136 result = rdev_set_txq_params(rdev, netdev,
2137 &txq_params);
31888487 2138 if (result)
7f2b8562 2139 return result;
31888487
JM		 2140 }
2141 }
55682965 2142
72bdcf34 2143 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
e16821bc
JM		 2144 result = __nl80211_set_channel(
2145 rdev,
2146 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2147 info);
72bdcf34 2148 if (result)
7f2b8562 2149 return result;
72bdcf34
JM		 2150 }
2151
98d2ff8b 2152 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 2153 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 2154 enum nl80211_tx_power_setting type;
2155 int idx, mbm = 0;
2156
c8442118
JB		 2157 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2158 txp_wdev = NULL;
2159
7f2b8562
YX		 2160 if (!rdev->ops->set_tx_power)
2161 return -EOPNOTSUPP;
98d2ff8b
JO		 2162
2163 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2164 type = nla_get_u32(info->attrs[idx]);
2165
2166 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
7f2b8562
YX		 2167 (type != NL80211_TX_POWER_AUTOMATIC))
2168 return -EINVAL;
98d2ff8b
JO		 2169
2170 if (type != NL80211_TX_POWER_AUTOMATIC) {
2171 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2172 mbm = nla_get_u32(info->attrs[idx]);
2173 }
2174
c8442118 2175 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b 2176 if (result)
7f2b8562 2177 return result;
98d2ff8b
JO		 2178 }
2179
afe0cbf8
BR		 2180 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2181 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2182 u32 tx_ant, rx_ant;
7f531e03
BR		 2183 if ((!rdev->wiphy.available_antennas_tx &&
2184 !rdev->wiphy.available_antennas_rx) ||
7f2b8562
YX		 2185 !rdev->ops->set_antenna)
2186 return -EOPNOTSUPP;
afe0cbf8
BR		 2187
2188 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2189 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2190
a7ffac95 2191 /* reject antenna configurations which don't match the
7f531e03
BR		 2192 * available antenna masks, except for the "all" mask */
2193 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
7f2b8562
YX		 2194 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2195 return -EINVAL;
a7ffac95 2196
7f531e03
BR		 2197 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2198 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 2199
e35e4d28 2200 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8 2201 if (result)
7f2b8562 2202 return result;
afe0cbf8
BR		 2203 }
2204
b9a5f8ca
JM		 2205 changed = 0;
2206
2207 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2208 retry_short = nla_get_u8(
2209 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
7f2b8562
YX		 2210 if (retry_short == 0)
2211 return -EINVAL;
2212
b9a5f8ca
JM		 2213 changed |= WIPHY_PARAM_RETRY_SHORT;
2214 }
2215
2216 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2217 retry_long = nla_get_u8(
2218 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
7f2b8562
YX		 2219 if (retry_long == 0)
2220 return -EINVAL;
2221
b9a5f8ca
JM		 2222 changed |= WIPHY_PARAM_RETRY_LONG;
2223 }
2224
2225 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2226 frag_threshold = nla_get_u32(
2227 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
7f2b8562
YX		 2228 if (frag_threshold < 256)
2229 return -EINVAL;
2230
b9a5f8ca
JM		 2231 if (frag_threshold != (u32) -1) {
2232 /*
2233 * Fragments (apart from the last one) are required to
2234 * have even length. Make the fragmentation code
2235 * simpler by stripping LSB should someone try to use
2236 * odd threshold value.
2237 */
2238 frag_threshold &= ~0x1;
2239 }
2240 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2241 }
2242
2243 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2244 rts_threshold = nla_get_u32(
2245 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2246 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2247 }
2248
81077e82 2249 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
3057dbfd
LB		 2250 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2251 return -EINVAL;
2252
81077e82
LT		 2253 coverage_class = nla_get_u8(
2254 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2255 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2256 }
2257
3057dbfd
LB		 2258 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2259 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2260 return -EOPNOTSUPP;
2261
2262 changed |= WIPHY_PARAM_DYN_ACK;
81077e82
LT		 2263 }
2264
b9a5f8ca
JM		 2265 if (changed) {
2266 u8 old_retry_short, old_retry_long;
2267 u32 old_frag_threshold, old_rts_threshold;
81077e82 2268 u8 old_coverage_class;
b9a5f8ca 2269
7f2b8562
YX		 2270 if (!rdev->ops->set_wiphy_params)
2271 return -EOPNOTSUPP;
b9a5f8ca
JM		 2272
2273 old_retry_short = rdev->wiphy.retry_short;
2274 old_retry_long = rdev->wiphy.retry_long;
2275 old_frag_threshold = rdev->wiphy.frag_threshold;
2276 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 2277 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 2278
2279 if (changed & WIPHY_PARAM_RETRY_SHORT)
2280 rdev->wiphy.retry_short = retry_short;
2281 if (changed & WIPHY_PARAM_RETRY_LONG)
2282 rdev->wiphy.retry_long = retry_long;
2283 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2284 rdev->wiphy.frag_threshold = frag_threshold;
2285 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2286 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 2287 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2288 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 2289
e35e4d28 2290 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 2291 if (result) {
2292 rdev->wiphy.retry_short = old_retry_short;
2293 rdev->wiphy.retry_long = old_retry_long;
2294 rdev->wiphy.frag_threshold = old_frag_threshold;
2295 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 2296 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 2297 }
2298 }
7f2b8562 2299 return 0;
55682965
JB		 2300}
2301
71bbc994
JB		 2302static inline u64 wdev_id(struct wireless_dev *wdev)
2303{
2304 return (u64)wdev->identifier |
f26cbf40 2305 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
71bbc994 2306}
55682965 2307
683b6d3b 2308static int nl80211_send_chandef(struct sk_buff *msg,
d2859df5 2309 const struct cfg80211_chan_def *chandef)
683b6d3b 2310{
9f5e8f6e 2311 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 2312
683b6d3b
JB		 2313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2314 chandef->chan->center_freq))
2315 return -ENOBUFS;
3d9d1d66
JB		 2316 switch (chandef->width) {
2317 case NL80211_CHAN_WIDTH_20_NOHT:
2318 case NL80211_CHAN_WIDTH_20:
2319 case NL80211_CHAN_WIDTH_40:
2320 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2321 cfg80211_get_chandef_type(chandef)))
2322 return -ENOBUFS;
2323 break;
2324 default:
2325 break;
2326 }
2327 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2328 return -ENOBUFS;
2329 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2330 return -ENOBUFS;
2331 if (chandef->center_freq2 &&
2332 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 2333 return -ENOBUFS;
2334 return 0;
2335}
2336
15e47304 2337static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 2338 struct cfg80211_registered_device *rdev,
72fb2abc 2339 struct wireless_dev *wdev)
55682965 2340{
72fb2abc 2341 struct net_device *dev = wdev->netdev;
55682965
JB		 2342 void *hdr;
2343
15e47304 2344 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 2345 if (!hdr)
2346 return -1;
2347
72fb2abc
JB		 2348 if (dev &&
2349 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 2350 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 2351 goto nla_put_failure;
2352
2353 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2354 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 2355 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 2356 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 2357 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2358 rdev->devlist_generation ^
2359 (cfg80211_rdev_list_generation << 2)))
2360 goto nla_put_failure;
f5ea9120 2361
5b7ccaf3 2362 if (rdev->ops->get_channel) {
683b6d3b
JB		 2363 int ret;
2364 struct cfg80211_chan_def chandef;
2365
2366 ret = rdev_get_channel(rdev, wdev, &chandef);
2367 if (ret == 0) {
2368 if (nl80211_send_chandef(msg, &chandef))
2369 goto nla_put_failure;
2370 }
d91df0e3
PF		 2371 }
2372
b84e7a05
AQ		 2373 if (wdev->ssid_len) {
2374 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2375 goto nla_put_failure;
2376 }
2377
55682965
JB		 2378 return genlmsg_end(msg, hdr);
2379
2380 nla_put_failure:
bc3ed28c
TG		 2381 genlmsg_cancel(msg, hdr);
2382 return -EMSGSIZE;
55682965
JB		 2383}
2384
2385static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2386{
2387 int wp_idx = 0;
2388 int if_idx = 0;
2389 int wp_start = cb->args[0];
2390 int if_start = cb->args[1];
f5ea9120 2391 struct cfg80211_registered_device *rdev;
55682965
JB		 2392 struct wireless_dev *wdev;
2393
5fe231e8 2394 rtnl_lock();
f5ea9120
JB		 2395 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2396 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 2397 continue;
bba95fef
JB		 2398 if (wp_idx < wp_start) {
2399 wp_idx++;
55682965 2400 continue;
bba95fef 2401 }
55682965
JB		 2402 if_idx = 0;
2403
89a54e48 2404 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 2405 if (if_idx < if_start) {
2406 if_idx++;
55682965 2407 continue;
bba95fef 2408 }
15e47304 2409 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 2410 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 2411 rdev, wdev) < 0) {
bba95fef
JB		 2412 goto out;
2413 }
2414 if_idx++;
55682965 2415 }
bba95fef
JB		 2416
2417 wp_idx++;
55682965 2418 }
bba95fef 2419 out:
5fe231e8 2420 rtnl_unlock();
55682965
JB		 2421
2422 cb->args[0] = wp_idx;
2423 cb->args[1] = if_idx;
2424
2425 return skb->len;
2426}
2427
2428static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2429{
2430 struct sk_buff *msg;
1b8ec87a 2431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
72fb2abc 2432 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2433
fd2120ca 2434 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2435 if (!msg)
4c476991 2436 return -ENOMEM;
55682965 2437
15e47304 2438 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1b8ec87a 2439 rdev, wdev) < 0) {
4c476991
JB		 2440 nlmsg_free(msg);
2441 return -ENOBUFS;
2442 }
55682965 2443
134e6375 2444 return genlmsg_reply(msg, info);
55682965
JB		 2445}
2446
66f7ac50
MW		 2447static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2448 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2449 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2450 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2451 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2452 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
e057d3c3 2453 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
66f7ac50
MW		 2454};
2455
2456static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2457{
2458 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2459 int flag;
2460
2461 *mntrflags = 0;
2462
2463 if (!nla)
2464 return -EINVAL;
2465
2466 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2467 nla, mntr_flags_policy))
2468 return -EINVAL;
2469
2470 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2471 if (flags[flag])
2472 *mntrflags |= (1<<flag);
2473
2474 return 0;
2475}
2476
9bc383de 2477static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2478 struct net_device *netdev, u8 use_4addr,
2479 enum nl80211_iftype iftype)
9bc383de 2480{
ad4bb6f8 2481 if (!use_4addr) {
f350a0a8 2482 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2483 return -EBUSY;
9bc383de 2484 return 0;
ad4bb6f8 2485 }
9bc383de
JB		 2486
2487 switch (iftype) {
2488 case NL80211_IFTYPE_AP_VLAN:
2489 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2490 return 0;
2491 break;
2492 case NL80211_IFTYPE_STATION:
2493 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2494 return 0;
2495 break;
2496 default:
2497 break;
2498 }
2499
2500 return -EOPNOTSUPP;
2501}
2502
55682965
JB		 2503static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2504{
4c476991 2505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2506 struct vif_params params;
e36d56b6 2507 int err;
04a773ad 2508 enum nl80211_iftype otype, ntype;
4c476991 2509 struct net_device *dev = info->user_ptr[1];
92ffe055 2510 u32 _flags, *flags = NULL;
ac7f9cfa 2511 bool change = false;
55682965 2512
2ec600d6
LCC		 2513 memset(&params, 0, sizeof(params));
2514
04a773ad 2515 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2516
723b038d 2517 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2518 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2519 if (otype != ntype)
ac7f9cfa 2520 change = true;
4c476991
JB		 2521 if (ntype > NL80211_IFTYPE_MAX)
2522 return -EINVAL;
723b038d
JB		 2523 }
2524
92ffe055 2525 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2526 struct wireless_dev *wdev = dev->ieee80211_ptr;
2527
4c476991
JB		 2528 if (ntype != NL80211_IFTYPE_MESH_POINT)
2529 return -EINVAL;
29cbe68c
JB		 2530 if (netif_running(dev))
2531 return -EBUSY;
2532
2533 wdev_lock(wdev);
2534 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2535 IEEE80211_MAX_MESH_ID_LEN);
2536 wdev->mesh_id_up_len =
2537 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2538 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2539 wdev->mesh_id_up_len);
2540 wdev_unlock(wdev);
2ec600d6
LCC		 2541 }
2542
8b787643
FF		 2543 if (info->attrs[NL80211_ATTR_4ADDR]) {
2544 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2545 change = true;
ad4bb6f8 2546 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2547 if (err)
4c476991 2548 return err;
8b787643
FF		 2549 } else {
2550 params.use_4addr = -1;
2551 }
2552
92ffe055 2553 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2554 if (ntype != NL80211_IFTYPE_MONITOR)
2555 return -EINVAL;
92ffe055
JB		 2556 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2557 &_flags);
ac7f9cfa 2558 if (err)
4c476991 2559 return err;
ac7f9cfa
JB		 2560
2561 flags = &_flags;
2562 change = true;
92ffe055 2563 }
3b85875a 2564
18003297 2565 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2566 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2567 return -EOPNOTSUPP;
2568
ac7f9cfa 2569 if (change)
3d54d255 2570 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2571 else
2572 err = 0;
60719ffd 2573
9bc383de
JB		 2574 if (!err && params.use_4addr != -1)
2575 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2576
55682965
JB		 2577 return err;
2578}
2579
2580static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2581{
4c476991 2582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2583 struct vif_params params;
84efbb84 2584 struct wireless_dev *wdev;
1c90f9d4 2585 struct sk_buff *msg;
55682965
JB		 2586 int err;
2587 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2588 u32 flags;
55682965 2589
78f22b6a
JB		 2590 /* to avoid failing a new interface creation due to pending removal */
2591 cfg80211_destroy_ifaces(rdev);
2592
2ec600d6
LCC		 2593 memset(&params, 0, sizeof(params));
2594
55682965
JB		 2595 if (!info->attrs[NL80211_ATTR_IFNAME])
2596 return -EINVAL;
2597
2598 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2599 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2600 if (type > NL80211_IFTYPE_MAX)
2601 return -EINVAL;
2602 }
2603
79c97e97 2604 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2605 !(rdev->wiphy.interface_modes & (1 << type)))
2606 return -EOPNOTSUPP;
55682965 2607
1c18f145
AS		 2608 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2609 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2610 ETH_ALEN);
2611 if (!is_valid_ether_addr(params.macaddr))
2612 return -EADDRNOTAVAIL;
2613 }
2614
9bc383de 2615 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2616 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2617 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2618 if (err)
4c476991 2619 return err;
9bc383de 2620 }
8b787643 2621
1c90f9d4
JB		 2622 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2623 if (!msg)
2624 return -ENOMEM;
2625
66f7ac50
MW		 2626 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2627 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2628 &flags);
e057d3c3 2629
18003297 2630 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
e057d3c3
FF		 2631 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2632 return -EOPNOTSUPP;
2633
e35e4d28
HG		 2634 wdev = rdev_add_virtual_intf(rdev,
2635 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2636 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2637 if (IS_ERR(wdev)) {
2638 nlmsg_free(msg);
84efbb84 2639 return PTR_ERR(wdev);
1c90f9d4 2640 }
2ec600d6 2641
78f22b6a
JB		 2642 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2643 wdev->owner_nlportid = info->snd_portid;
2644
98104fde
JB		 2645 switch (type) {
2646 case NL80211_IFTYPE_MESH_POINT:
2647 if (!info->attrs[NL80211_ATTR_MESH_ID])
2648 break;
29cbe68c
JB		 2649 wdev_lock(wdev);
2650 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2651 IEEE80211_MAX_MESH_ID_LEN);
2652 wdev->mesh_id_up_len =
2653 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2654 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2655 wdev->mesh_id_up_len);
2656 wdev_unlock(wdev);
98104fde
JB		 2657 break;
2658 case NL80211_IFTYPE_P2P_DEVICE:
2659 /*
2660 * P2P Device doesn't have a netdev, so doesn't go
2661 * through the netdev notifier and must be added here
2662 */
2663 mutex_init(&wdev->mtx);
2664 INIT_LIST_HEAD(&wdev->event_list);
2665 spin_lock_init(&wdev->event_lock);
2666 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2667 spin_lock_init(&wdev->mgmt_registrations_lock);
2668
98104fde
JB		 2669 wdev->identifier = ++rdev->wdev_id;
2670 list_add_rcu(&wdev->list, &rdev->wdev_list);
2671 rdev->devlist_generation++;
98104fde
JB		 2672 break;
2673 default:
2674 break;
29cbe68c
JB		 2675 }
2676
15e47304 2677 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2678 rdev, wdev) < 0) {
2679 nlmsg_free(msg);
2680 return -ENOBUFS;
2681 }
2682
2683 return genlmsg_reply(msg, info);
55682965
JB		 2684}
2685
2686static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2687{
4c476991 2688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2689 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2690
4c476991
JB		 2691 if (!rdev->ops->del_virtual_intf)
2692 return -EOPNOTSUPP;
55682965 2693
84efbb84
JB		 2694 /*
2695 * If we remove a wireless device without a netdev then clear
2696 * user_ptr[1] so that nl80211_post_doit won't dereference it
2697 * to check if it needs to do dev_put(). Otherwise it crashes
2698 * since the wdev has been freed, unlike with a netdev where
2699 * we need the dev_put() for the netdev to really be freed.
2700 */
2701 if (!wdev->netdev)
2702 info->user_ptr[1] = NULL;
2703
e35e4d28 2704 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2705}
2706
1d9d9213
SW		 2707static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2708{
2709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2710 struct net_device *dev = info->user_ptr[1];
2711 u16 noack_map;
2712
2713 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2714 return -EINVAL;
2715
2716 if (!rdev->ops->set_noack_map)
2717 return -EOPNOTSUPP;
2718
2719 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2720
e35e4d28 2721 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2722}
2723
41ade00f
JB		 2724struct get_key_cookie {
2725 struct sk_buff *msg;
2726 int error;
b9454e83 2727 int idx;
41ade00f
JB		 2728};
2729
2730static void get_key_callback(void *c, struct key_params *params)
2731{
b9454e83 2732 struct nlattr *key;
41ade00f
JB		 2733 struct get_key_cookie *cookie = c;
2734
9360ffd1
DM		 2735 if ((params->key &&
2736 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2737 params->key_len, params->key)) ||
2738 (params->seq &&
2739 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2740 params->seq_len, params->seq)) ||
2741 (params->cipher &&
2742 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2743 params->cipher)))
2744 goto nla_put_failure;
41ade00f 2745
b9454e83
JB		 2746 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2747 if (!key)
2748 goto nla_put_failure;
2749
9360ffd1
DM		 2750 if ((params->key &&
2751 nla_put(cookie->msg, NL80211_KEY_DATA,
2752 params->key_len, params->key)) ||
2753 (params->seq &&
2754 nla_put(cookie->msg, NL80211_KEY_SEQ,
2755 params->seq_len, params->seq)) ||
2756 (params->cipher &&
2757 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2758 params->cipher)))
2759 goto nla_put_failure;
b9454e83 2760
9360ffd1
DM		 2761 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2762 goto nla_put_failure;
b9454e83
JB		 2763
2764 nla_nest_end(cookie->msg, key);
2765
41ade00f
JB		 2766 return;
2767 nla_put_failure:
2768 cookie->error = 1;
2769}
2770
2771static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2772{
4c476991 2773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2774 int err;
4c476991 2775 struct net_device *dev = info->user_ptr[1];
41ade00f 2776 u8 key_idx = 0;
e31b8213
JB		 2777 const u8 *mac_addr = NULL;
2778 bool pairwise;
41ade00f
JB		 2779 struct get_key_cookie cookie = {
2780 .error = 0,
2781 };
2782 void *hdr;
2783 struct sk_buff *msg;
2784
2785 if (info->attrs[NL80211_ATTR_KEY_IDX])
2786 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2787
3cfcf6ac 2788 if (key_idx > 5)
41ade00f
JB		 2789 return -EINVAL;
2790
2791 if (info->attrs[NL80211_ATTR_MAC])
2792 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2793
e31b8213
JB		 2794 pairwise = !!mac_addr;
2795 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2796 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2797 if (kt >= NUM_NL80211_KEYTYPES)
2798 return -EINVAL;
2799 if (kt != NL80211_KEYTYPE_GROUP &&
2800 kt != NL80211_KEYTYPE_PAIRWISE)
2801 return -EINVAL;
2802 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2803 }
2804
4c476991
JB		 2805 if (!rdev->ops->get_key)
2806 return -EOPNOTSUPP;
41ade00f 2807
fd2120ca 2808 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2809 if (!msg)
2810 return -ENOMEM;
41ade00f 2811
15e47304 2812 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2813 NL80211_CMD_NEW_KEY);
cb35fba3 2814 if (!hdr)
9fe271af 2815 goto nla_put_failure;
41ade00f
JB		 2816
2817 cookie.msg = msg;
b9454e83 2818 cookie.idx = key_idx;
41ade00f 2819
9360ffd1
DM		 2820 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2821 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2822 goto nla_put_failure;
2823 if (mac_addr &&
2824 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2825 goto nla_put_failure;
41ade00f 2826
e31b8213
JB		 2827 if (pairwise && mac_addr &&
2828 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2829 return -ENOENT;
2830
e35e4d28
HG		 2831 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2832 get_key_callback);
41ade00f
JB		 2833
2834 if (err)
6c95e2a2 2835 goto free_msg;
41ade00f
JB		 2836
2837 if (cookie.error)
2838 goto nla_put_failure;
2839
2840 genlmsg_end(msg, hdr);
4c476991 2841 return genlmsg_reply(msg, info);
41ade00f
JB		 2842
2843 nla_put_failure:
2844 err = -ENOBUFS;
6c95e2a2 2845 free_msg:
41ade00f 2846 nlmsg_free(msg);
41ade00f
JB		 2847 return err;
2848}
2849
2850static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2851{
4c476991 2852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2853 struct key_parse key;
41ade00f 2854 int err;
4c476991 2855 struct net_device *dev = info->user_ptr[1];
41ade00f 2856
b9454e83
JB		 2857 err = nl80211_parse_key(info, &key);
2858 if (err)
2859 return err;
41ade00f 2860
b9454e83 2861 if (key.idx < 0)
41ade00f
JB		 2862 return -EINVAL;
2863
b9454e83
JB		 2864 /* only support setting default key */
2865 if (!key.def && !key.defmgmt)
41ade00f
JB		 2866 return -EINVAL;
2867
dbd2fd65 2868 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2869
dbd2fd65
JB		 2870 if (key.def) {
2871 if (!rdev->ops->set_default_key) {
2872 err = -EOPNOTSUPP;
2873 goto out;
2874 }
41ade00f 2875
dbd2fd65
JB		 2876 err = nl80211_key_allowed(dev->ieee80211_ptr);
2877 if (err)
2878 goto out;
2879
e35e4d28 2880 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2881 key.def_uni, key.def_multi);
2882
2883 if (err)
2884 goto out;
fffd0934 2885
3d23e349 2886#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2887 dev->ieee80211_ptr->wext.default_key = key.idx;
2888#endif
2889 } else {
2890 if (key.def_uni || !key.def_multi) {
2891 err = -EINVAL;
2892 goto out;
2893 }
2894
2895 if (!rdev->ops->set_default_mgmt_key) {
2896 err = -EOPNOTSUPP;
2897 goto out;
2898 }
2899
2900 err = nl80211_key_allowed(dev->ieee80211_ptr);
2901 if (err)
2902 goto out;
2903
e35e4d28 2904 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2905 if (err)
2906 goto out;
2907
2908#ifdef CONFIG_CFG80211_WEXT
2909 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2910#endif
dbd2fd65
JB		 2911 }
2912
2913 out:
fffd0934 2914 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2915
41ade00f
JB		 2916 return err;
2917}
2918
2919static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2920{
4c476991 2921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2922 int err;
4c476991 2923 struct net_device *dev = info->user_ptr[1];
b9454e83 2924 struct key_parse key;
e31b8213 2925 const u8 *mac_addr = NULL;
41ade00f 2926
b9454e83
JB		 2927 err = nl80211_parse_key(info, &key);
2928 if (err)
2929 return err;
41ade00f 2930
b9454e83 2931 if (!key.p.key)
41ade00f
JB		 2932 return -EINVAL;
2933
41ade00f
JB		 2934 if (info->attrs[NL80211_ATTR_MAC])
2935 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2936
e31b8213
JB		 2937 if (key.type == -1) {
2938 if (mac_addr)
2939 key.type = NL80211_KEYTYPE_PAIRWISE;
2940 else
2941 key.type = NL80211_KEYTYPE_GROUP;
2942 }
2943
2944 /* for now */
2945 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2946 key.type != NL80211_KEYTYPE_GROUP)
2947 return -EINVAL;
2948
4c476991
JB		 2949 if (!rdev->ops->add_key)
2950 return -EOPNOTSUPP;
25e47c18 2951
e31b8213
JB		 2952 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2953 key.type == NL80211_KEYTYPE_PAIRWISE,
2954 mac_addr))
4c476991 2955 return -EINVAL;
41ade00f 2956
fffd0934
JB		 2957 wdev_lock(dev->ieee80211_ptr);
2958 err = nl80211_key_allowed(dev->ieee80211_ptr);
2959 if (!err)
e35e4d28
HG		 2960 err = rdev_add_key(rdev, dev, key.idx,
2961 key.type == NL80211_KEYTYPE_PAIRWISE,
2962 mac_addr, &key.p);
fffd0934 2963 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2964
41ade00f
JB		 2965 return err;
2966}
2967
2968static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2969{
4c476991 2970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2971 int err;
4c476991 2972 struct net_device *dev = info->user_ptr[1];
41ade00f 2973 u8 *mac_addr = NULL;
b9454e83 2974 struct key_parse key;
41ade00f 2975
b9454e83
JB		 2976 err = nl80211_parse_key(info, &key);
2977 if (err)
2978 return err;
41ade00f
JB		 2979
2980 if (info->attrs[NL80211_ATTR_MAC])
2981 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2982
e31b8213
JB		 2983 if (key.type == -1) {
2984 if (mac_addr)
2985 key.type = NL80211_KEYTYPE_PAIRWISE;
2986 else
2987 key.type = NL80211_KEYTYPE_GROUP;
2988 }
2989
2990 /* for now */
2991 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2992 key.type != NL80211_KEYTYPE_GROUP)
2993 return -EINVAL;
2994
4c476991
JB		 2995 if (!rdev->ops->del_key)
2996 return -EOPNOTSUPP;
41ade00f 2997
fffd0934
JB		 2998 wdev_lock(dev->ieee80211_ptr);
2999 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 3000
3001 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3002 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3003 err = -ENOENT;
3004
fffd0934 3005 if (!err)
e35e4d28
HG		 3006 err = rdev_del_key(rdev, dev, key.idx,
3007 key.type == NL80211_KEYTYPE_PAIRWISE,
3008 mac_addr);
41ade00f 3009
3d23e349 3010#ifdef CONFIG_CFG80211_WEXT
08645126 3011 if (!err) {
b9454e83 3012 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 3013 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 3014 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 3015 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3016 }
3017#endif
fffd0934 3018 wdev_unlock(dev->ieee80211_ptr);
08645126 3019
41ade00f
JB		 3020 return err;
3021}
3022
77765eaf
VT		 3023/* This function returns an error or the number of nested attributes */
3024static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3025{
3026 struct nlattr *attr;
3027 int n_entries = 0, tmp;
3028
3029 nla_for_each_nested(attr, nl_attr, tmp) {
3030 if (nla_len(attr) != ETH_ALEN)
3031 return -EINVAL;
3032
3033 n_entries++;
3034 }
3035
3036 return n_entries;
3037}
3038
3039/*
3040 * This function parses ACL information and allocates memory for ACL data.
3041 * On successful return, the calling function is responsible to free the
3042 * ACL buffer returned by this function.
3043 */
3044static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3045 struct genl_info *info)
3046{
3047 enum nl80211_acl_policy acl_policy;
3048 struct nlattr *attr;
3049 struct cfg80211_acl_data *acl;
3050 int i = 0, n_entries, tmp;
3051
3052 if (!wiphy->max_acl_mac_addrs)
3053 return ERR_PTR(-EOPNOTSUPP);
3054
3055 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3056 return ERR_PTR(-EINVAL);
3057
3058 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3059 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3060 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3061 return ERR_PTR(-EINVAL);
3062
3063 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3064 return ERR_PTR(-EINVAL);
3065
3066 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3067 if (n_entries < 0)
3068 return ERR_PTR(n_entries);
3069
3070 if (n_entries > wiphy->max_acl_mac_addrs)
3071 return ERR_PTR(-ENOTSUPP);
3072
3073 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3074 GFP_KERNEL);
3075 if (!acl)
3076 return ERR_PTR(-ENOMEM);
3077
3078 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3079 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3080 i++;
3081 }
3082
3083 acl->n_acl_entries = n_entries;
3084 acl->acl_policy = acl_policy;
3085
3086 return acl;
3087}
3088
3089static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3090{
3091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3092 struct net_device *dev = info->user_ptr[1];
3093 struct cfg80211_acl_data *acl;
3094 int err;
3095
3096 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3097 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3098 return -EOPNOTSUPP;
3099
3100 if (!dev->ieee80211_ptr->beacon_interval)
3101 return -EINVAL;
3102
3103 acl = parse_acl_data(&rdev->wiphy, info);
3104 if (IS_ERR(acl))
3105 return PTR_ERR(acl);
3106
3107 err = rdev_set_mac_acl(rdev, dev, acl);
3108
3109 kfree(acl);
3110
3111 return err;
3112}
3113
a1193be8 3114static int nl80211_parse_beacon(struct nlattr *attrs[],
8860020e 3115 struct cfg80211_beacon_data *bcn)
ed1b6cc7 3116{
8860020e 3117 bool haveinfo = false;
ed1b6cc7 3118
a1193be8
SW		 3119 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3120 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3121 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3122 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 3123 return -EINVAL;
3124
8860020e 3125 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 3126
a1193be8
SW		 3127 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3128 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3129 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
8860020e
JB		 3130 if (!bcn->head_len)
3131 return -EINVAL;
3132 haveinfo = true;
ed1b6cc7
JB		 3133 }
3134
a1193be8
SW		 3135 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3136 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3137 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 3138 haveinfo = true;
ed1b6cc7
JB		 3139 }
3140
4c476991
JB		 3141 if (!haveinfo)
3142 return -EINVAL;
3b85875a 3143
a1193be8
SW		 3144 if (attrs[NL80211_ATTR_IE]) {
3145 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3146 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 3147 }
3148
a1193be8 3149 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 3150 bcn->proberesp_ies =
a1193be8 3151 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 3152 bcn->proberesp_ies_len =
a1193be8 3153 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
9946ecfb
JM		 3154 }
3155
a1193be8 3156 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 3157 bcn->assocresp_ies =
a1193be8 3158 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 3159 bcn->assocresp_ies_len =
a1193be8 3160 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
9946ecfb
JM		 3161 }
3162
a1193be8
SW		 3163 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3164 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3165 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
00f740e1
AN		 3166 }
3167
8860020e
JB		 3168 return 0;
3169}
3170
46c1dd0c
FF		 3171static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3172 struct cfg80211_ap_settings *params)
3173{
3174 struct wireless_dev *wdev;
3175 bool ret = false;
3176
89a54e48 3177 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 3178 if (wdev->iftype != NL80211_IFTYPE_AP &&
3179 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3180 continue;
3181
683b6d3b 3182 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 3183 continue;
3184
683b6d3b 3185 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 3186 ret = true;
3187 break;
3188 }
3189
46c1dd0c
FF		 3190 return ret;
3191}
3192
e39e5b5e
JM		 3193static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3194 enum nl80211_auth_type auth_type,
3195 enum nl80211_commands cmd)
3196{
3197 if (auth_type > NL80211_AUTHTYPE_MAX)
3198 return false;
3199
3200 switch (cmd) {
3201 case NL80211_CMD_AUTHENTICATE:
3202 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3203 auth_type == NL80211_AUTHTYPE_SAE)
3204 return false;
3205 return true;
3206 case NL80211_CMD_CONNECT:
3207 case NL80211_CMD_START_AP:
3208 /* SAE not supported yet */
3209 if (auth_type == NL80211_AUTHTYPE_SAE)
3210 return false;
3211 return true;
3212 default:
3213 return false;
3214 }
3215}
3216
8860020e
JB		 3217static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3218{
3219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3220 struct net_device *dev = info->user_ptr[1];
3221 struct wireless_dev *wdev = dev->ieee80211_ptr;
3222 struct cfg80211_ap_settings params;
3223 int err;
3224
3225 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3226 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3227 return -EOPNOTSUPP;
3228
3229 if (!rdev->ops->start_ap)
3230 return -EOPNOTSUPP;
3231
3232 if (wdev->beacon_interval)
3233 return -EALREADY;
3234
3235 memset(&params, 0, sizeof(params));
3236
3237 /* these are required for START_AP */
3238 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3239 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3240 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3241 return -EINVAL;
3242
a1193be8 3243 err = nl80211_parse_beacon(info->attrs, &params.beacon);
8860020e
JB		 3244 if (err)
3245 return err;
3246
3247 params.beacon_interval =
3248 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3249 params.dtim_period =
3250 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3251
3252 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3253 if (err)
3254 return err;
3255
3256 /*
3257 * In theory, some of these attributes should be required here
3258 * but since they were not used when the command was originally
3259 * added, keep them optional for old user space programs to let
3260 * them continue to work with drivers that do not need the
3261 * additional information -- drivers must check!
3262 */
3263 if (info->attrs[NL80211_ATTR_SSID]) {
3264 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3265 params.ssid_len =
3266 nla_len(info->attrs[NL80211_ATTR_SSID]);
3267 if (params.ssid_len == 0 ||
3268 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3269 return -EINVAL;
3270 }
3271
3272 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3273 params.hidden_ssid = nla_get_u32(
3274 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3275 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3276 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3277 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3278 return -EINVAL;
3279 }
3280
3281 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3282
3283 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3284 params.auth_type = nla_get_u32(
3285 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 3286 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3287 NL80211_CMD_START_AP))
8860020e
JB		 3288 return -EINVAL;
3289 } else
3290 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3291
3292 err = nl80211_crypto_settings(rdev, info, &params.crypto,
3293 NL80211_MAX_NR_CIPHER_SUITES);
3294 if (err)
3295 return err;
3296
1b658f11
VT		 3297 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3298 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3299 return -EOPNOTSUPP;
3300 params.inactivity_timeout = nla_get_u16(
3301 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3302 }
3303
53cabad7
JB		 3304 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3305 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3306 return -EINVAL;
3307 params.p2p_ctwindow =
3308 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3309 if (params.p2p_ctwindow > 127)
3310 return -EINVAL;
3311 if (params.p2p_ctwindow != 0 &&
3312 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3313 return -EINVAL;
3314 }
3315
3316 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3317 u8 tmp;
3318
3319 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3320 return -EINVAL;
3321 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3322 if (tmp > 1)
3323 return -EINVAL;
3324 params.p2p_opp_ps = tmp;
3325 if (params.p2p_opp_ps != 0 &&
3326 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3327 return -EINVAL;
3328 }
3329
aa430da4 3330 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 3331 err = nl80211_parse_chandef(rdev, info, &params.chandef);
3332 if (err)
3333 return err;
3334 } else if (wdev->preset_chandef.chan) {
3335 params.chandef = wdev->preset_chandef;
46c1dd0c 3336 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 3337 return -EINVAL;
3338
174e0cd2
IP		 3339 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
3340 wdev->iftype))
aa430da4
JB		 3341 return -EINVAL;
3342
77765eaf
VT		 3343 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3344 params.acl = parse_acl_data(&rdev->wiphy, info);
3345 if (IS_ERR(params.acl))
3346 return PTR_ERR(params.acl);
3347 }
3348
18998c38
EP		 3349 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3350 params.smps_mode =
3351 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3352 switch (params.smps_mode) {
3353 case NL80211_SMPS_OFF:
3354 break;
3355 case NL80211_SMPS_STATIC:
3356 if (!(rdev->wiphy.features &
3357 NL80211_FEATURE_STATIC_SMPS))
3358 return -EINVAL;
3359 break;
3360 case NL80211_SMPS_DYNAMIC:
3361 if (!(rdev->wiphy.features &
3362 NL80211_FEATURE_DYNAMIC_SMPS))
3363 return -EINVAL;
3364 break;
3365 default:
3366 return -EINVAL;
3367 }
3368 } else {
3369 params.smps_mode = NL80211_SMPS_OFF;
3370 }
3371
c56589ed 3372 wdev_lock(wdev);
e35e4d28 3373 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 3374 if (!err) {
683b6d3b 3375 wdev->preset_chandef = params.chandef;
8860020e 3376 wdev->beacon_interval = params.beacon_interval;
9e0e2961 3377 wdev->chandef = params.chandef;
06e191e2
AQ		 3378 wdev->ssid_len = params.ssid_len;
3379 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 3380 }
c56589ed 3381 wdev_unlock(wdev);
77765eaf
VT		 3382
3383 kfree(params.acl);
3384
56d1893d 3385 return err;
ed1b6cc7
JB		 3386}
3387
8860020e
JB		 3388static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3389{
3390 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3391 struct net_device *dev = info->user_ptr[1];
3392 struct wireless_dev *wdev = dev->ieee80211_ptr;
3393 struct cfg80211_beacon_data params;
3394 int err;
3395
3396 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3397 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3398 return -EOPNOTSUPP;
3399
3400 if (!rdev->ops->change_beacon)
3401 return -EOPNOTSUPP;
3402
3403 if (!wdev->beacon_interval)
3404 return -EINVAL;
3405
a1193be8 3406 err = nl80211_parse_beacon(info->attrs, &params);
8860020e
JB		 3407 if (err)
3408 return err;
3409
c56589ed
SW		 3410 wdev_lock(wdev);
3411 err = rdev_change_beacon(rdev, dev, &params);
3412 wdev_unlock(wdev);
3413
3414 return err;
8860020e
JB		 3415}
3416
3417static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 3418{
4c476991
JB		 3419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3420 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 3421
7c8d5e03 3422 return cfg80211_stop_ap(rdev, dev, false);
ed1b6cc7
JB		 3423}
3424
5727ef1b
JB		 3425static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3426 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3427 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3428 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 3429 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 3430 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 3431 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 3432};
3433
eccb8e8f 3434static int parse_station_flags(struct genl_info *info,
bdd3ae3d 3435 enum nl80211_iftype iftype,
eccb8e8f 3436 struct station_parameters *params)
5727ef1b
JB		 3437{
3438 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3439 struct nlattr *nla;
5727ef1b
JB		 3440 int flag;
3441
eccb8e8f
JB		 3442 /*
3443 * Try parsing the new attribute first so userspace
3444 * can specify both for older kernels.
3445 */
3446 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3447 if (nla) {
3448 struct nl80211_sta_flag_update *sta_flags;
3449
3450 sta_flags = nla_data(nla);
3451 params->sta_flags_mask = sta_flags->mask;
3452 params->sta_flags_set = sta_flags->set;
77ee7c89 3453 params->sta_flags_set &= params->sta_flags_mask;
eccb8e8f
JB		 3454 if ((params->sta_flags_mask |
3455 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3456 return -EINVAL;
3457 return 0;
3458 }
3459
3460 /* if present, parse the old attribute */
5727ef1b 3461
eccb8e8f 3462 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3463 if (!nla)
3464 return 0;
3465
3466 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3467 nla, sta_flags_policy))
3468 return -EINVAL;
3469
bdd3ae3d
JB		 3470 /*
3471 * Only allow certain flags for interface types so that
3472 * other attributes are silently ignored. Remember that
3473 * this is backward compatibility code with old userspace
3474 * and shouldn't be hit in other cases anyway.
3475 */
3476 switch (iftype) {
3477 case NL80211_IFTYPE_AP:
3478 case NL80211_IFTYPE_AP_VLAN:
3479 case NL80211_IFTYPE_P2P_GO:
3480 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3481 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3482 BIT(NL80211_STA_FLAG_WME) |
3483 BIT(NL80211_STA_FLAG_MFP);
3484 break;
3485 case NL80211_IFTYPE_P2P_CLIENT:
3486 case NL80211_IFTYPE_STATION:
3487 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3488 BIT(NL80211_STA_FLAG_TDLS_PEER);
3489 break;
3490 case NL80211_IFTYPE_MESH_POINT:
3491 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3492 BIT(NL80211_STA_FLAG_MFP) |
3493 BIT(NL80211_STA_FLAG_AUTHORIZED);
3494 default:
3495 return -EINVAL;
3496 }
5727ef1b 3497
3383b5a6
JB		 3498 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3499 if (flags[flag]) {
eccb8e8f 3500 params->sta_flags_set |= (1<<flag);
5727ef1b 3501
3383b5a6
JB		 3502 /* no longer support new API additions in old API */
3503 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3504 return -EINVAL;
3505 }
3506 }
3507
5727ef1b
JB		 3508 return 0;
3509}
3510
c8dcfd8a
FF		 3511static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3512 int attr)
3513{
3514 struct nlattr *rate;
8eb41c8d
VK		 3515 u32 bitrate;
3516 u16 bitrate_compat;
c8dcfd8a
FF		 3517
3518 rate = nla_nest_start(msg, attr);
3519 if (!rate)
db9c64cf 3520 return false;
c8dcfd8a
FF		 3521
3522 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3523 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3524 /* report 16-bit bitrate only if we can */
3525 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3526 if (bitrate > 0 &&
3527 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3528 return false;
3529 if (bitrate_compat > 0 &&
3530 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3531 return false;
3532
3533 if (info->flags & RATE_INFO_FLAGS_MCS) {
3534 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3535 return false;
3536 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3537 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3538 return false;
3539 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3540 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3541 return false;
3542 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3543 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3544 return false;
3545 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3546 return false;
3547 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3548 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3549 return false;
3550 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3551 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3552 return false;
3553 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3554 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3555 return false;
3556 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3557 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3558 return false;
3559 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3560 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3561 return false;
3562 }
c8dcfd8a
FF		 3563
3564 nla_nest_end(msg, rate);
3565 return true;
c8dcfd8a
FF		 3566}
3567
119363c7
FF		 3568static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3569 int id)
3570{
3571 void *attr;
3572 int i = 0;
3573
3574 if (!mask)
3575 return true;
3576
3577 attr = nla_nest_start(msg, id);
3578 if (!attr)
3579 return false;
3580
3581 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3582 if (!(mask & BIT(i)))
3583 continue;
3584
3585 if (nla_put_u8(msg, i, signal[i]))
3586 return false;
3587 }
3588
3589 nla_nest_end(msg, attr);
3590
3591 return true;
3592}
3593
15e47304 3594static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3595 int flags,
3596 struct cfg80211_registered_device *rdev,
3597 struct net_device *dev,
98b62183 3598 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3599{
3600 void *hdr;
f4263c98 3601 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3602
15e47304 3603 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3604 if (!hdr)
3605 return -1;
3606
9360ffd1
DM		 3607 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3608 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3609 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3610 goto nla_put_failure;
f5ea9120 3611
2ec600d6
LCC		 3612 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3613 if (!sinfoattr)
fd5b74dc 3614 goto nla_put_failure;
9360ffd1
DM		 3615 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3616 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3617 sinfo->connected_time))
3618 goto nla_put_failure;
3619 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3620 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3621 sinfo->inactive_time))
3622 goto nla_put_failure;
42745e03
VK		 3623 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3624 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3625 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3626 (u32)sinfo->rx_bytes))
9360ffd1 3627 goto nla_put_failure;
42745e03 3628 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
4325d724 3629 STATION_INFO_TX_BYTES64)) &&
9360ffd1 3630 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3631 (u32)sinfo->tx_bytes))
3632 goto nla_put_failure;
3633 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3634 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3635 sinfo->rx_bytes))
3636 goto nla_put_failure;
3637 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3638 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3639 sinfo->tx_bytes))
3640 goto nla_put_failure;
3641 if ((sinfo->filled & STATION_INFO_LLID) &&
3642 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3643 goto nla_put_failure;
3644 if ((sinfo->filled & STATION_INFO_PLID) &&
3645 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3646 goto nla_put_failure;
3647 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3648 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3649 sinfo->plink_state))
3650 goto nla_put_failure;
66266b3a
JL		 3651 switch (rdev->wiphy.signal_type) {
3652 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3653 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3654 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3655 sinfo->signal))
3656 goto nla_put_failure;
3657 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3658 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3659 sinfo->signal_avg))
3660 goto nla_put_failure;
66266b3a
JL		 3661 break;
3662 default:
3663 break;
3664 }
119363c7
FF		 3665 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3666 if (!nl80211_put_signal(msg, sinfo->chains,
3667 sinfo->chain_signal,
3668 NL80211_STA_INFO_CHAIN_SIGNAL))
3669 goto nla_put_failure;
3670 }
3671 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3672 if (!nl80211_put_signal(msg, sinfo->chains,
3673 sinfo->chain_signal_avg,
3674 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3675 goto nla_put_failure;
3676 }
420e7fab 3677 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3678 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3679 NL80211_STA_INFO_TX_BITRATE))
3680 goto nla_put_failure;
3681 }
3682 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3683 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3684 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3685 goto nla_put_failure;
420e7fab 3686 }
9360ffd1
DM		 3687 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3688 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3689 sinfo->rx_packets))
3690 goto nla_put_failure;
3691 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3692 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3693 sinfo->tx_packets))
3694 goto nla_put_failure;
3695 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3696 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3697 sinfo->tx_retries))
3698 goto nla_put_failure;
3699 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3700 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3701 sinfo->tx_failed))
3702 goto nla_put_failure;
867d849f
AQ		 3703 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3704 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3705 sinfo->expected_throughput))
3706 goto nla_put_failure;
9360ffd1
DM		 3707 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3708 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3709 sinfo->beacon_loss_count))
3710 goto nla_put_failure;
3b1c5a53
MP		 3711 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3712 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3713 sinfo->local_pm))
3714 goto nla_put_failure;
3715 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3716 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3717 sinfo->peer_pm))
3718 goto nla_put_failure;
3719 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3720 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3721 sinfo->nonpeer_pm))
3722 goto nla_put_failure;
f4263c98
PS		 3723 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3724 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3725 if (!bss_param)
3726 goto nla_put_failure;
3727
9360ffd1
DM		 3728 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3729 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3730 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3731 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3732 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3733 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3734 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3735 sinfo->bss_param.dtim_period) ||
3736 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3737 sinfo->bss_param.beacon_interval))
3738 goto nla_put_failure;
f4263c98
PS		 3739
3740 nla_nest_end(msg, bss_param);
3741 }
9360ffd1
DM		 3742 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3743 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3744 sizeof(struct nl80211_sta_flag_update),
3745 &sinfo->sta_flags))
3746 goto nla_put_failure;
7eab0f64
JL		 3747 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3748 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3749 sinfo->t_offset))
3750 goto nla_put_failure;
2ec600d6 3751 nla_nest_end(msg, sinfoattr);
fd5b74dc 3752
9360ffd1
DM		 3753 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3754 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3755 sinfo->assoc_req_ies))
3756 goto nla_put_failure;
50d3dfb7 3757
fd5b74dc
JB		 3758 return genlmsg_end(msg, hdr);
3759
3760 nla_put_failure:
bc3ed28c
TG		 3761 genlmsg_cancel(msg, hdr);
3762 return -EMSGSIZE;
fd5b74dc
JB		 3763}
3764
2ec600d6 3765static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3766 struct netlink_callback *cb)
2ec600d6 3767{
2ec600d6 3768 struct station_info sinfo;
1b8ec87a 3769 struct cfg80211_registered_device *rdev;
97990a06 3770 struct wireless_dev *wdev;
2ec600d6 3771 u8 mac_addr[ETH_ALEN];
97990a06 3772 int sta_idx = cb->args[2];
2ec600d6 3773 int err;
2ec600d6 3774
1b8ec87a 3775 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 3776 if (err)
3777 return err;
bba95fef 3778
97990a06
JB		 3779 if (!wdev->netdev) {
3780 err = -EINVAL;
3781 goto out_err;
3782 }
3783
1b8ec87a 3784 if (!rdev->ops->dump_station) {
eec60b03 3785 err = -EOPNOTSUPP;
bba95fef
JB		 3786 goto out_err;
3787 }
3788
bba95fef 3789 while (1) {
f612cedf 3790 memset(&sinfo, 0, sizeof(sinfo));
1b8ec87a 3791 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
e35e4d28 3792 mac_addr, &sinfo);
bba95fef
JB		 3793 if (err == -ENOENT)
3794 break;
3795 if (err)
3b85875a 3796 goto out_err;
bba95fef
JB		 3797
3798 if (nl80211_send_station(skb,
15e47304 3799 NETLINK_CB(cb->skb).portid,
bba95fef 3800 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1b8ec87a 3801 rdev, wdev->netdev, mac_addr,
bba95fef
JB		 3802 &sinfo) < 0)
3803 goto out;
3804
3805 sta_idx++;
3806 }
3807
3808
3809 out:
97990a06 3810 cb->args[2] = sta_idx;
bba95fef 3811 err = skb->len;
bba95fef 3812 out_err:
1b8ec87a 3813 nl80211_finish_wdev_dump(rdev);
bba95fef
JB		 3814
3815 return err;
2ec600d6 3816}
fd5b74dc 3817
5727ef1b
JB		 3818static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3819{
4c476991
JB		 3820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3821 struct net_device *dev = info->user_ptr[1];
2ec600d6 3822 struct station_info sinfo;
fd5b74dc
JB		 3823 struct sk_buff *msg;
3824 u8 *mac_addr = NULL;
4c476991 3825 int err;
fd5b74dc 3826
2ec600d6 3827 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3828
3829 if (!info->attrs[NL80211_ATTR_MAC])
3830 return -EINVAL;
3831
3832 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3833
4c476991
JB		 3834 if (!rdev->ops->get_station)
3835 return -EOPNOTSUPP;
3b85875a 3836
e35e4d28 3837 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3838 if (err)
4c476991 3839 return err;
2ec600d6 3840
fd2120ca 3841 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3842 if (!msg)
4c476991 3843 return -ENOMEM;
fd5b74dc 3844
15e47304 3845 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3846 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3847 nlmsg_free(msg);
3848 return -ENOBUFS;
3849 }
3b85875a 3850
4c476991 3851 return genlmsg_reply(msg, info);
5727ef1b
JB		 3852}
3853
77ee7c89
JB		 3854int cfg80211_check_station_change(struct wiphy *wiphy,
3855 struct station_parameters *params,
3856 enum cfg80211_station_type statype)
3857{
3858 if (params->listen_interval != -1)
3859 return -EINVAL;
c72e1140
AN		 3860 if (params->aid &&
3861 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
77ee7c89
JB		 3862 return -EINVAL;
3863
3864 /* When you run into this, adjust the code below for the new flag */
3865 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3866
3867 switch (statype) {
eef941e6
TP		 3868 case CFG80211_STA_MESH_PEER_KERNEL:
3869 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3870 /*
3871 * No ignoring the TDLS flag here -- the userspace mesh
3872 * code doesn't have the bug of including TDLS in the
3873 * mask everywhere.
3874 */
3875 if (params->sta_flags_mask &
3876 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3877 BIT(NL80211_STA_FLAG_MFP) |
3878 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3879 return -EINVAL;
3880 break;
3881 case CFG80211_STA_TDLS_PEER_SETUP:
3882 case CFG80211_STA_TDLS_PEER_ACTIVE:
3883 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3884 return -EINVAL;
3885 /* ignore since it can't change */
3886 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3887 break;
3888 default:
3889 /* disallow mesh-specific things */
3890 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3891 return -EINVAL;
3892 if (params->local_pm)
3893 return -EINVAL;
3894 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3895 return -EINVAL;
3896 }
3897
3898 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3899 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3900 /* TDLS can't be set, ... */
3901 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3902 return -EINVAL;
3903 /*
3904 * ... but don't bother the driver with it. This works around
3905 * a hostapd/wpa_supplicant issue -- it always includes the
3906 * TLDS_PEER flag in the mask even for AP mode.
3907 */
3908 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3909 }
3910
3911 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3912 /* reject other things that can't change */
3913 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3914 return -EINVAL;
3915 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3916 return -EINVAL;
3917 if (params->supported_rates)
3918 return -EINVAL;
3919 if (params->ext_capab || params->ht_capa || params->vht_capa)
3920 return -EINVAL;
3921 }
3922
3923 if (statype != CFG80211_STA_AP_CLIENT) {
3924 if (params->vlan)
3925 return -EINVAL;
3926 }
3927
3928 switch (statype) {
3929 case CFG80211_STA_AP_MLME_CLIENT:
3930 /* Use this only for authorizing/unauthorizing a station */
3931 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3932 return -EOPNOTSUPP;
3933 break;
3934 case CFG80211_STA_AP_CLIENT:
3935 /* accept only the listed bits */
3936 if (params->sta_flags_mask &
3937 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3938 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3939 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3940 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3941 BIT(NL80211_STA_FLAG_WME) |
3942 BIT(NL80211_STA_FLAG_MFP)))
3943 return -EINVAL;
3944
3945 /* but authenticated/associated only if driver handles it */
3946 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3947 params->sta_flags_mask &
3948 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3949 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3950 return -EINVAL;
3951 break;
3952 case CFG80211_STA_IBSS:
3953 case CFG80211_STA_AP_STA:
3954 /* reject any changes other than AUTHORIZED */
3955 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3956 return -EINVAL;
3957 break;
3958 case CFG80211_STA_TDLS_PEER_SETUP:
3959 /* reject any changes other than AUTHORIZED or WME */
3960 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3961 BIT(NL80211_STA_FLAG_WME)))
3962 return -EINVAL;
3963 /* force (at least) rates when authorizing */
3964 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3965 !params->supported_rates)
3966 return -EINVAL;
3967 break;
3968 case CFG80211_STA_TDLS_PEER_ACTIVE:
3969 /* reject any changes */
3970 return -EINVAL;
eef941e6 3971 case CFG80211_STA_MESH_PEER_KERNEL:
77ee7c89
JB		 3972 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3973 return -EINVAL;
3974 break;
eef941e6 3975 case CFG80211_STA_MESH_PEER_USER:
77ee7c89
JB		 3976 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3977 return -EINVAL;
3978 break;
3979 }
3980
3981 return 0;
3982}
3983EXPORT_SYMBOL(cfg80211_check_station_change);
3984
5727ef1b 3985/*
c258d2de 3986 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3987 */
80b99899
JB		 3988static struct net_device *get_vlan(struct genl_info *info,
3989 struct cfg80211_registered_device *rdev)
5727ef1b 3990{
463d0183 3991 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3992 struct net_device *v;
3993 int ret;
3994
3995 if (!vlanattr)
3996 return NULL;
3997
3998 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3999 if (!v)
4000 return ERR_PTR(-ENODEV);
4001
4002 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4003 ret = -EINVAL;
4004 goto error;
5727ef1b 4005 }
80b99899 4006
77ee7c89
JB		 4007 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4008 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4009 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4010 ret = -EINVAL;
4011 goto error;
4012 }
4013
80b99899
JB		 4014 if (!netif_running(v)) {
4015 ret = -ENETDOWN;
4016 goto error;
4017 }
4018
4019 return v;
4020 error:
4021 dev_put(v);
4022 return ERR_PTR(ret);
5727ef1b
JB		 4023}
4024
94e860f1
JB		 4025static const struct nla_policy
4026nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
df881293
JM		 4027 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4028 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4029};
4030
ff276691
JB		 4031static int nl80211_parse_sta_wme(struct genl_info *info,
4032 struct station_parameters *params)
df881293 4033{
df881293
JM		 4034 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4035 struct nlattr *nla;
4036 int err;
4037
df881293
JM		 4038 /* parse WME attributes if present */
4039 if (!info->attrs[NL80211_ATTR_STA_WME])
4040 return 0;
4041
4042 nla = info->attrs[NL80211_ATTR_STA_WME];
4043 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4044 nl80211_sta_wme_policy);
4045 if (err)
4046 return err;
4047
4048 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4049 params->uapsd_queues = nla_get_u8(
4050 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4051 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4052 return -EINVAL;
4053
4054 if (tb[NL80211_STA_WME_MAX_SP])
4055 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4056
4057 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4058 return -EINVAL;
4059
4060 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4061
4062 return 0;
4063}
4064
c01fc9ad
SD		 4065static int nl80211_parse_sta_channel_info(struct genl_info *info,
4066 struct station_parameters *params)
4067{
4068 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4069 params->supported_channels =
4070 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4071 params->supported_channels_len =
4072 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4073 /*
4074 * Need to include at least one (first channel, number of
4075 * channels) tuple for each subband, and must have proper
4076 * tuples for the rest of the data as well.
4077 */
4078 if (params->supported_channels_len < 2)
4079 return -EINVAL;
4080 if (params->supported_channels_len % 2)
4081 return -EINVAL;
4082 }
4083
4084 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4085 params->supported_oper_classes =
4086 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4087 params->supported_oper_classes_len =
4088 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4089 /*
4090 * The value of the Length field of the Supported Operating
4091 * Classes element is between 2 and 253.
4092 */
4093 if (params->supported_oper_classes_len < 2 ||
4094 params->supported_oper_classes_len > 253)
4095 return -EINVAL;
4096 }
4097 return 0;
4098}
4099
ff276691
JB		 4100static int nl80211_set_station_tdls(struct genl_info *info,
4101 struct station_parameters *params)
4102{
c01fc9ad 4103 int err;
ff276691 4104 /* Dummy STA entry gets updated once the peer capabilities are known */
5e4b6f56
JM		 4105 if (info->attrs[NL80211_ATTR_PEER_AID])
4106 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
ff276691
JB		 4107 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4108 params->ht_capa =
4109 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4110 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4111 params->vht_capa =
4112 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4113
c01fc9ad
SD		 4114 err = nl80211_parse_sta_channel_info(info, params);
4115 if (err)
4116 return err;
4117
ff276691
JB		 4118 return nl80211_parse_sta_wme(info, params);
4119}
4120
5727ef1b
JB		 4121static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4122{
4c476991 4123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4124 struct net_device *dev = info->user_ptr[1];
5727ef1b 4125 struct station_parameters params;
77ee7c89
JB		 4126 u8 *mac_addr;
4127 int err;
5727ef1b
JB		 4128
4129 memset(&params, 0, sizeof(params));
4130
4131 params.listen_interval = -1;
4132
77ee7c89
JB		 4133 if (!rdev->ops->change_station)
4134 return -EOPNOTSUPP;
4135
5727ef1b
JB		 4136 if (info->attrs[NL80211_ATTR_STA_AID])
4137 return -EINVAL;
4138
4139 if (!info->attrs[NL80211_ATTR_MAC])
4140 return -EINVAL;
4141
4142 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4143
4144 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4145 params.supported_rates =
4146 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4147 params.supported_rates_len =
4148 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4149 }
4150
9d62a986
JM		 4151 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4152 params.capability =
4153 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4154 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4155 }
4156
4157 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4158 params.ext_capab =
4159 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4160 params.ext_capab_len =
4161 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4162 }
4163
df881293 4164 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 4165 return -EINVAL;
36aedc90 4166
bdd3ae3d 4167 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4168 return -EINVAL;
4169
f8bacc21 4170 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 4171 params.plink_action =
f8bacc21
JB		 4172 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4173 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4174 return -EINVAL;
4175 }
2ec600d6 4176
f8bacc21 4177 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 4178 params.plink_state =
f8bacc21
JB		 4179 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4180 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4181 return -EINVAL;
4182 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4183 }
9c3990aa 4184
3b1c5a53
MP		 4185 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4186 enum nl80211_mesh_power_mode pm = nla_get_u32(
4187 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4188
4189 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4190 pm > NL80211_MESH_POWER_MAX)
4191 return -EINVAL;
4192
4193 params.local_pm = pm;
4194 }
4195
77ee7c89
JB		 4196 /* Include parameters for TDLS peer (will check later) */
4197 err = nl80211_set_station_tdls(info, &params);
4198 if (err)
4199 return err;
4200
4201 params.vlan = get_vlan(info, rdev);
4202 if (IS_ERR(params.vlan))
4203 return PTR_ERR(params.vlan);
4204
a97f4424
JB		 4205 switch (dev->ieee80211_ptr->iftype) {
4206 case NL80211_IFTYPE_AP:
4207 case NL80211_IFTYPE_AP_VLAN:
074ac8df 4208 case NL80211_IFTYPE_P2P_GO:
074ac8df 4209 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 4210 case NL80211_IFTYPE_STATION:
267335d6 4211 case NL80211_IFTYPE_ADHOC:
a97f4424 4212 case NL80211_IFTYPE_MESH_POINT:
a97f4424
JB		 4213 break;
4214 default:
77ee7c89
JB		 4215 err = -EOPNOTSUPP;
4216 goto out_put_vlan;
034d655e
JB		 4217 }
4218
77ee7c89 4219 /* driver will call cfg80211_check_station_change() */
e35e4d28 4220 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 4221
77ee7c89 4222 out_put_vlan:
5727ef1b
JB		 4223 if (params.vlan)
4224 dev_put(params.vlan);
3b85875a 4225
5727ef1b
JB		 4226 return err;
4227}
4228
4229static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4230{
4c476991 4231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 4232 int err;
4c476991 4233 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4234 struct station_parameters params;
4235 u8 *mac_addr = NULL;
4236
4237 memset(&params, 0, sizeof(params));
4238
984c311b
JB		 4239 if (!rdev->ops->add_station)
4240 return -EOPNOTSUPP;
4241
5727ef1b
JB		 4242 if (!info->attrs[NL80211_ATTR_MAC])
4243 return -EINVAL;
4244
5727ef1b
JB		 4245 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4246 return -EINVAL;
4247
4248 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4249 return -EINVAL;
4250
5e4b6f56
JM		 4251 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4252 !info->attrs[NL80211_ATTR_PEER_AID])
0e956c13
TLSC		 4253 return -EINVAL;
4254
5727ef1b
JB		 4255 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4256 params.supported_rates =
4257 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4258 params.supported_rates_len =
4259 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4260 params.listen_interval =
4261 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 4262
3d124ea2 4263 if (info->attrs[NL80211_ATTR_PEER_AID])
5e4b6f56 4264 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3d124ea2
JM		 4265 else
4266 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
0e956c13
TLSC		 4267 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4268 return -EINVAL;
51b50fbe 4269
9d62a986
JM		 4270 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4271 params.capability =
4272 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4273 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4274 }
4275
4276 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4277 params.ext_capab =
4278 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4279 params.ext_capab_len =
4280 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4281 }
4282
36aedc90
JM		 4283 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4284 params.ht_capa =
4285 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 4286
f461be3e
MP		 4287 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4288 params.vht_capa =
4289 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4290
60f4a7b1
MK		 4291 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4292 params.opmode_notif_used = true;
4293 params.opmode_notif =
4294 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4295 }
4296
f8bacc21 4297 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 4298 params.plink_action =
f8bacc21
JB		 4299 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4300 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4301 return -EINVAL;
4302 }
96b78dff 4303
c01fc9ad
SD		 4304 err = nl80211_parse_sta_channel_info(info, &params);
4305 if (err)
4306 return err;
4307
ff276691
JB		 4308 err = nl80211_parse_sta_wme(info, &params);
4309 if (err)
4310 return err;
bdd90d5e 4311
bdd3ae3d 4312 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 4313 return -EINVAL;
4314
77ee7c89
JB		 4315 /* When you run into this, adjust the code below for the new flag */
4316 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4317
bdd90d5e
JB		 4318 switch (dev->ieee80211_ptr->iftype) {
4319 case NL80211_IFTYPE_AP:
4320 case NL80211_IFTYPE_AP_VLAN:
4321 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 4322 /* ignore WME attributes if iface/sta is not capable */
4323 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4324 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4325 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 4326
bdd90d5e 4327 /* TDLS peers cannot be added */
3d124ea2
JM		 4328 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4329 info->attrs[NL80211_ATTR_PEER_AID])
4319e193 4330 return -EINVAL;
bdd90d5e
JB		 4331 /* but don't bother the driver with it */
4332 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 4333
d582cffb
JB		 4334 /* allow authenticated/associated only if driver handles it */
4335 if (!(rdev->wiphy.features &
4336 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4337 params.sta_flags_mask &
4338 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4339 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4340 return -EINVAL;
4341
bdd90d5e
JB		 4342 /* must be last in here for error handling */
4343 params.vlan = get_vlan(info, rdev);
4344 if (IS_ERR(params.vlan))
4345 return PTR_ERR(params.vlan);
4346 break;
4347 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 4348 /* ignore uAPSD data */
4349 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4350
d582cffb
JB		 4351 /* associated is disallowed */
4352 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4353 return -EINVAL;
bdd90d5e 4354 /* TDLS peers cannot be added */
3d124ea2
JM		 4355 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4356 info->attrs[NL80211_ATTR_PEER_AID])
bdd90d5e
JB		 4357 return -EINVAL;
4358 break;
4359 case NL80211_IFTYPE_STATION:
93d08f0b 4360 case NL80211_IFTYPE_P2P_CLIENT:
984c311b
JB		 4361 /* ignore uAPSD data */
4362 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4363
77ee7c89
JB		 4364 /* these are disallowed */
4365 if (params.sta_flags_mask &
4366 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4367 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
d582cffb 4368 return -EINVAL;
bdd90d5e
JB		 4369 /* Only TDLS peers can be added */
4370 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4371 return -EINVAL;
4372 /* Can only add if TDLS ... */
4373 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4374 return -EOPNOTSUPP;
4375 /* ... with external setup is supported */
4376 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4377 return -EOPNOTSUPP;
77ee7c89
JB		 4378 /*
4379 * Older wpa_supplicant versions always mark the TDLS peer
4380 * as authorized, but it shouldn't yet be.
4381 */
4382 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
bdd90d5e
JB		 4383 break;
4384 default:
4385 return -EOPNOTSUPP;
c75786c9
EP		 4386 }
4387
bdd90d5e 4388 /* be aware of params.vlan when changing code here */
5727ef1b 4389
e35e4d28 4390 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 4391
5727ef1b
JB		 4392 if (params.vlan)
4393 dev_put(params.vlan);
5727ef1b
JB		 4394 return err;
4395}
4396
4397static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4398{
4c476991
JB		 4399 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4400 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 4401 u8 *mac_addr = NULL;
4402
4403 if (info->attrs[NL80211_ATTR_MAC])
4404 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4405
e80cf853 4406 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 4407 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 4408 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4409 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4410 return -EINVAL;
5727ef1b 4411
4c476991
JB		 4412 if (!rdev->ops->del_station)
4413 return -EOPNOTSUPP;
3b85875a 4414
e35e4d28 4415 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 4416}
4417
15e47304 4418static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 4419 int flags, struct net_device *dev,
4420 u8 *dst, u8 *next_hop,
4421 struct mpath_info *pinfo)
4422{
4423 void *hdr;
4424 struct nlattr *pinfoattr;
4425
15e47304 4426 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 4427 if (!hdr)
4428 return -1;
4429
9360ffd1
DM		 4430 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4431 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4432 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4433 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4434 goto nla_put_failure;
f5ea9120 4435
2ec600d6
LCC		 4436 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4437 if (!pinfoattr)
4438 goto nla_put_failure;
9360ffd1
DM		 4439 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4440 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4441 pinfo->frame_qlen))
4442 goto nla_put_failure;
4443 if (((pinfo->filled & MPATH_INFO_SN) &&
4444 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4445 ((pinfo->filled & MPATH_INFO_METRIC) &&
4446 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4447 pinfo->metric)) ||
4448 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4449 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4450 pinfo->exptime)) ||
4451 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4452 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4453 pinfo->flags)) ||
4454 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4455 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4456 pinfo->discovery_timeout)) ||
4457 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4458 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4459 pinfo->discovery_retries)))
4460 goto nla_put_failure;
2ec600d6
LCC		 4461
4462 nla_nest_end(msg, pinfoattr);
4463
4464 return genlmsg_end(msg, hdr);
4465
4466 nla_put_failure:
bc3ed28c
TG		 4467 genlmsg_cancel(msg, hdr);
4468 return -EMSGSIZE;
2ec600d6
LCC		 4469}
4470
4471static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 4472 struct netlink_callback *cb)
2ec600d6 4473{
2ec600d6 4474 struct mpath_info pinfo;
1b8ec87a 4475 struct cfg80211_registered_device *rdev;
97990a06 4476 struct wireless_dev *wdev;
2ec600d6
LCC		 4477 u8 dst[ETH_ALEN];
4478 u8 next_hop[ETH_ALEN];
97990a06 4479 int path_idx = cb->args[2];
2ec600d6 4480 int err;
2ec600d6 4481
1b8ec87a 4482 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 4483 if (err)
4484 return err;
bba95fef 4485
1b8ec87a 4486 if (!rdev->ops->dump_mpath) {
eec60b03 4487 err = -EOPNOTSUPP;
bba95fef
JB		 4488 goto out_err;
4489 }
4490
97990a06 4491 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
eec60b03 4492 err = -EOPNOTSUPP;
0448b5fc 4493 goto out_err;
eec60b03
JM		 4494 }
4495
bba95fef 4496 while (1) {
1b8ec87a 4497 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
97990a06 4498 next_hop, &pinfo);
bba95fef 4499 if (err == -ENOENT)
2ec600d6 4500 break;
bba95fef 4501 if (err)
3b85875a 4502 goto out_err;
2ec600d6 4503
15e47304 4504 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef 4505 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 4506 wdev->netdev, dst, next_hop,
bba95fef
JB		 4507 &pinfo) < 0)
4508 goto out;
2ec600d6 4509
bba95fef 4510 path_idx++;
2ec600d6 4511 }
2ec600d6 4512
2ec600d6 4513
bba95fef 4514 out:
97990a06 4515 cb->args[2] = path_idx;
bba95fef 4516 err = skb->len;
bba95fef 4517 out_err:
1b8ec87a 4518 nl80211_finish_wdev_dump(rdev);
bba95fef 4519 return err;
2ec600d6
LCC		 4520}
4521
4522static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4523{
4c476991 4524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 4525 int err;
4c476991 4526 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4527 struct mpath_info pinfo;
4528 struct sk_buff *msg;
4529 u8 *dst = NULL;
4530 u8 next_hop[ETH_ALEN];
4531
4532 memset(&pinfo, 0, sizeof(pinfo));
4533
4534 if (!info->attrs[NL80211_ATTR_MAC])
4535 return -EINVAL;
4536
4537 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4538
4c476991
JB		 4539 if (!rdev->ops->get_mpath)
4540 return -EOPNOTSUPP;
2ec600d6 4541
4c476991
JB		 4542 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4543 return -EOPNOTSUPP;
eec60b03 4544
e35e4d28 4545 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 4546 if (err)
4c476991 4547 return err;
2ec600d6 4548
fd2120ca 4549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 4550 if (!msg)
4c476991 4551 return -ENOMEM;
2ec600d6 4552
15e47304 4553 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 4554 dev, dst, next_hop, &pinfo) < 0) {
4555 nlmsg_free(msg);
4556 return -ENOBUFS;
4557 }
3b85875a 4558
4c476991 4559 return genlmsg_reply(msg, info);
2ec600d6
LCC		 4560}
4561
4562static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4563{
4c476991
JB		 4564 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4565 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4566 u8 *dst = NULL;
4567 u8 *next_hop = NULL;
4568
4569 if (!info->attrs[NL80211_ATTR_MAC])
4570 return -EINVAL;
4571
4572 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4573 return -EINVAL;
4574
4575 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4576 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4577
4c476991
JB		 4578 if (!rdev->ops->change_mpath)
4579 return -EOPNOTSUPP;
35a8efe1 4580
4c476991
JB		 4581 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4582 return -EOPNOTSUPP;
2ec600d6 4583
e35e4d28 4584 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 4585}
4c476991 4586
2ec600d6
LCC		 4587static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4588{
4c476991
JB		 4589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4590 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4591 u8 *dst = NULL;
4592 u8 *next_hop = NULL;
4593
4594 if (!info->attrs[NL80211_ATTR_MAC])
4595 return -EINVAL;
4596
4597 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4598 return -EINVAL;
4599
4600 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4601 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4602
4c476991
JB		 4603 if (!rdev->ops->add_mpath)
4604 return -EOPNOTSUPP;
35a8efe1 4605
4c476991
JB		 4606 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4607 return -EOPNOTSUPP;
2ec600d6 4608
e35e4d28 4609 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 4610}
4611
4612static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4613{
4c476991
JB		 4614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4615 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 4616 u8 *dst = NULL;
4617
4618 if (info->attrs[NL80211_ATTR_MAC])
4619 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4620
4c476991
JB		 4621 if (!rdev->ops->del_mpath)
4622 return -EOPNOTSUPP;
3b85875a 4623
e35e4d28 4624 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4625}
4626
66be7d2b
HR		 4627static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4628{
4629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4630 int err;
4631 struct net_device *dev = info->user_ptr[1];
4632 struct mpath_info pinfo;
4633 struct sk_buff *msg;
4634 u8 *dst = NULL;
4635 u8 mpp[ETH_ALEN];
4636
4637 memset(&pinfo, 0, sizeof(pinfo));
4638
4639 if (!info->attrs[NL80211_ATTR_MAC])
4640 return -EINVAL;
4641
4642 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4643
4644 if (!rdev->ops->get_mpp)
4645 return -EOPNOTSUPP;
4646
4647 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4648 return -EOPNOTSUPP;
4649
4650 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4651 if (err)
4652 return err;
4653
4654 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4655 if (!msg)
4656 return -ENOMEM;
4657
4658 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4659 dev, dst, mpp, &pinfo) < 0) {
4660 nlmsg_free(msg);
4661 return -ENOBUFS;
4662 }
4663
4664 return genlmsg_reply(msg, info);
4665}
4666
4667static int nl80211_dump_mpp(struct sk_buff *skb,
4668 struct netlink_callback *cb)
4669{
4670 struct mpath_info pinfo;
4671 struct cfg80211_registered_device *rdev;
4672 struct wireless_dev *wdev;
4673 u8 dst[ETH_ALEN];
4674 u8 mpp[ETH_ALEN];
4675 int path_idx = cb->args[2];
4676 int err;
4677
4678 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4679 if (err)
4680 return err;
4681
4682 if (!rdev->ops->dump_mpp) {
4683 err = -EOPNOTSUPP;
4684 goto out_err;
4685 }
4686
4687 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4688 err = -EOPNOTSUPP;
4689 goto out_err;
4690 }
4691
4692 while (1) {
4693 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4694 mpp, &pinfo);
4695 if (err == -ENOENT)
4696 break;
4697 if (err)
4698 goto out_err;
4699
4700 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4701 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4702 wdev->netdev, dst, mpp,
4703 &pinfo) < 0)
4704 goto out;
4705
4706 path_idx++;
4707 }
4708
4709 out:
4710 cb->args[2] = path_idx;
4711 err = skb->len;
4712 out_err:
4713 nl80211_finish_wdev_dump(rdev);
4714 return err;
4715}
4716
9f1ba906
JM		 4717static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4718{
4c476991
JB		 4719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4720 struct net_device *dev = info->user_ptr[1];
c56589ed 4721 struct wireless_dev *wdev = dev->ieee80211_ptr;
9f1ba906 4722 struct bss_parameters params;
c56589ed 4723 int err;
9f1ba906
JM		 4724
4725 memset(&params, 0, sizeof(params));
4726 /* default to not changing parameters */
4727 params.use_cts_prot = -1;
4728 params.use_short_preamble = -1;
4729 params.use_short_slot_time = -1;
fd8aaaf3 4730 params.ap_isolate = -1;
50b12f59 4731 params.ht_opmode = -1;
53cabad7
JB		 4732 params.p2p_ctwindow = -1;
4733 params.p2p_opp_ps = -1;
9f1ba906
JM		 4734
4735 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4736 params.use_cts_prot =
4737 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4738 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4739 params.use_short_preamble =
4740 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4741 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4742 params.use_short_slot_time =
4743 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4744 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4745 params.basic_rates =
4746 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4747 params.basic_rates_len =
4748 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4749 }
fd8aaaf3
FF		 4750 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4751 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4752 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4753 params.ht_opmode =
4754 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4755
53cabad7
JB		 4756 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4757 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4758 return -EINVAL;
4759 params.p2p_ctwindow =
4760 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4761 if (params.p2p_ctwindow < 0)
4762 return -EINVAL;
4763 if (params.p2p_ctwindow != 0 &&
4764 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4765 return -EINVAL;
4766 }
4767
4768 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4769 u8 tmp;
4770
4771 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4772 return -EINVAL;
4773 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4774 if (tmp > 1)
4775 return -EINVAL;
4776 params.p2p_opp_ps = tmp;
4777 if (params.p2p_opp_ps &&
4778 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4779 return -EINVAL;
4780 }
4781
4c476991
JB		 4782 if (!rdev->ops->change_bss)
4783 return -EOPNOTSUPP;
9f1ba906 4784
074ac8df 4785 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4786 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4787 return -EOPNOTSUPP;
3b85875a 4788
c56589ed
SW		 4789 wdev_lock(wdev);
4790 err = rdev_change_bss(rdev, dev, &params);
4791 wdev_unlock(wdev);
4792
4793 return err;
9f1ba906
JM		 4794}
4795
b54452b0 4796static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4797 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4798 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4799 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4800 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4801 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4802 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
089027e5 4803 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
b2e1b302
LR		 4804};
4805
4806static int parse_reg_rule(struct nlattr *tb[],
4807 struct ieee80211_reg_rule *reg_rule)
4808{
4809 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4810 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4811
4812 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4813 return -EINVAL;
4814 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4815 return -EINVAL;
4816 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4817 return -EINVAL;
b0dfd2ea
JD		 4818 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4819 return -EINVAL;
b2e1b302
LR		 4820 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4821 return -EINVAL;
4822
4823 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4824
4825 freq_range->start_freq_khz =
4826 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4827 freq_range->end_freq_khz =
4828 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
b0dfd2ea
JD		 4829 freq_range->max_bandwidth_khz =
4830 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
b2e1b302
LR		 4831
4832 power_rule->max_eirp =
4833 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4834
4835 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4836 power_rule->max_antenna_gain =
4837 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4838
089027e5
JD		 4839 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4840 reg_rule->dfs_cac_ms =
4841 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4842
b2e1b302
LR		 4843 return 0;
4844}
4845
4846static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4847{
b2e1b302 4848 char *data = NULL;
57b5ce07 4849 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4850
80778f18
LR		 4851 /*
4852 * You should only get this when cfg80211 hasn't yet initialized
4853 * completely when built-in to the kernel right between the time
4854 * window between nl80211_init() and regulatory_init(), if that is
4855 * even possible.
4856 */
458f4f9e 4857 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4858 return -EINPROGRESS;
80778f18 4859
57b5ce07
LR		 4860 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4861 user_reg_hint_type =
4862 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4863 else
4864 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4865
4866 switch (user_reg_hint_type) {
4867 case NL80211_USER_REG_HINT_USER:
4868 case NL80211_USER_REG_HINT_CELL_BASE:
52616f2b
IP		 4869 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4870 return -EINVAL;
4871
4872 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4873 return regulatory_hint_user(data, user_reg_hint_type);
4874 case NL80211_USER_REG_HINT_INDOOR:
4875 return regulatory_hint_indoor_user();
57b5ce07
LR		 4876 default:
4877 return -EINVAL;
4878 }
b2e1b302
LR		 4879}
4880
24bdd9f4 4881static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4882 struct genl_info *info)
93da9cc1 4883{
4c476991 4884 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4885 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4886 struct wireless_dev *wdev = dev->ieee80211_ptr;
4887 struct mesh_config cur_params;
4888 int err = 0;
93da9cc1 4889 void *hdr;
4890 struct nlattr *pinfoattr;
4891 struct sk_buff *msg;
4892
29cbe68c
JB		 4893 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4894 return -EOPNOTSUPP;
4895
24bdd9f4 4896 if (!rdev->ops->get_mesh_config)
4c476991 4897 return -EOPNOTSUPP;
f3f92586 4898
29cbe68c
JB		 4899 wdev_lock(wdev);
4900 /* If not connected, get default parameters */
4901 if (!wdev->mesh_id_len)
4902 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4903 else
e35e4d28 4904 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4905 wdev_unlock(wdev);
4906
93da9cc1 4907 if (err)
4c476991 4908 return err;
93da9cc1 4909
4910 /* Draw up a netlink message to send back */
fd2120ca 4911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4912 if (!msg)
4913 return -ENOMEM;
15e47304 4914 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4915 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4916 if (!hdr)
efe1cf0c 4917 goto out;
24bdd9f4 4918 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4919 if (!pinfoattr)
4920 goto nla_put_failure;
9360ffd1
DM		 4921 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4922 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4923 cur_params.dot11MeshRetryTimeout) ||
4924 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4925 cur_params.dot11MeshConfirmTimeout) ||
4926 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4927 cur_params.dot11MeshHoldingTimeout) ||
4928 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4929 cur_params.dot11MeshMaxPeerLinks) ||
4930 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4931 cur_params.dot11MeshMaxRetries) ||
4932 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4933 cur_params.dot11MeshTTL) ||
4934 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4935 cur_params.element_ttl) ||
4936 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4937 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4938 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4939 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4940 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4941 cur_params.dot11MeshHWMPmaxPREQretries) ||
4942 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4943 cur_params.path_refresh_time) ||
4944 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4945 cur_params.min_discovery_timeout) ||
4946 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4947 cur_params.dot11MeshHWMPactivePathTimeout) ||
4948 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4949 cur_params.dot11MeshHWMPpreqMinInterval) ||
4950 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4951 cur_params.dot11MeshHWMPperrMinInterval) ||
4952 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4953 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4954 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4955 cur_params.dot11MeshHWMPRootMode) ||
4956 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4957 cur_params.dot11MeshHWMPRannInterval) ||
4958 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4959 cur_params.dot11MeshGateAnnouncementProtocol) ||
4960 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4961 cur_params.dot11MeshForwarding) ||
4962 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4963 cur_params.rssi_threshold) ||
4964 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4965 cur_params.ht_opmode) ||
4966 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4967 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4968 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4969 cur_params.dot11MeshHWMProotInterval) ||
4970 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4971 cur_params.dot11MeshHWMPconfirmationInterval) ||
4972 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4973 cur_params.power_mode) ||
4974 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
8e7c0538
CT		 4975 cur_params.dot11MeshAwakeWindowDuration) ||
4976 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4977 cur_params.plink_timeout))
9360ffd1 4978 goto nla_put_failure;
93da9cc1 4979 nla_nest_end(msg, pinfoattr);
4980 genlmsg_end(msg, hdr);
4c476991 4981 return genlmsg_reply(msg, info);
93da9cc1 4982
3b85875a 4983 nla_put_failure:
93da9cc1 4984 genlmsg_cancel(msg, hdr);
efe1cf0c 4985 out:
d080e275 4986 nlmsg_free(msg);
4c476991 4987 return -ENOBUFS;
93da9cc1 4988}
4989
b54452b0 4990static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4991 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4992 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4993 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4994 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4995 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4996 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4997 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4998 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4999 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 5000 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5001 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5002 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5003 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5004 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 5005 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 5006 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 5007 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 5008 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 5009 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 5010 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 5011 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5012 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 5013 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5014 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 5015 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 5016 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5017 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
8e7c0538 5018 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
93da9cc1 5019};
5020
c80d545d
JC		 5021static const struct nla_policy
5022 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 5023 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 5024 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5025 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 5026 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
6e16d90b 5027 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
bb2798d4 5028 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
581a8b0f 5029 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 5030 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 5031 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 5032};
5033
24bdd9f4 5034static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 5035 struct mesh_config *cfg,
5036 u32 *mask_out)
93da9cc1 5037{
93da9cc1 5038 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 5039 u32 mask = 0;
93da9cc1 5040
ea54fba2
MP		 5041#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5042do { \
5043 if (tb[attr]) { \
5044 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5045 return -EINVAL; \
5046 cfg->param = fn(tb[attr]); \
5047 mask |= (1 << (attr - 1)); \
5048 } \
5049} while (0)
bd90fdcc
JB		 5050
5051
24bdd9f4 5052 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 5053 return -EINVAL;
5054 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 5055 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 5056 nl80211_meshconf_params_policy))
93da9cc1 5057 return -EINVAL;
5058
93da9cc1 5059 /* This makes sure that there aren't more than 32 mesh config
5060 * parameters (otherwise our bitfield scheme would not work.) */
5061 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5062
5063 /* Fill in the params struct */
ea54fba2 5064 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 5065 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5066 nla_get_u16);
ea54fba2 5067 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 5068 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5069 nla_get_u16);
ea54fba2 5070 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 5071 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5072 nla_get_u16);
ea54fba2 5073 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 5074 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5075 nla_get_u16);
ea54fba2 5076 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 5077 mask, NL80211_MESHCONF_MAX_RETRIES,
5078 nla_get_u8);
ea54fba2 5079 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 5080 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 5081 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 5082 mask, NL80211_MESHCONF_ELEMENT_TTL,
5083 nla_get_u8);
ea54fba2 5084 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 5085 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5086 nla_get_u8);
ea54fba2
MP		 5087 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5088 1, 255, mask,
a4f606ea
CYY		 5089 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5090 nla_get_u32);
ea54fba2 5091 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 5092 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5093 nla_get_u8);
ea54fba2 5094 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 5095 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5096 nla_get_u32);
ea54fba2 5097 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 5098 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5099 nla_get_u16);
ea54fba2
MP		 5100 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5101 1, 65535, mask,
a4f606ea
CYY		 5102 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5103 nla_get_u32);
93da9cc1 5104 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 5105 1, 65535, mask,
5106 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 5107 nla_get_u16);
dca7e943 5108 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 5109 1, 65535, mask,
5110 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 5111 nla_get_u16);
93da9cc1 5112 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5113 dot11MeshHWMPnetDiameterTraversalTime,
5114 1, 65535, mask,
a4f606ea
CYY		 5115 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5116 nla_get_u16);
ea54fba2
MP		 5117 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5118 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5119 nla_get_u8);
5120 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5121 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 5122 nla_get_u16);
63c5723b 5123 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5124 dot11MeshGateAnnouncementProtocol, 0, 1,
5125 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 5126 nla_get_u8);
ea54fba2 5127 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 5128 mask, NL80211_MESHCONF_FORWARDING,
5129 nla_get_u8);
83374fe9 5130 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
a4f606ea 5131 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
83374fe9 5132 nla_get_s32);
ea54fba2 5133 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 5134 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 5135 nla_get_u16);
5136 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 5137 1, 65535, mask,
ac1073a6
CYY		 5138 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5139 nla_get_u32);
ea54fba2 5140 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 5141 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 5142 nla_get_u16);
5143 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 5144 dot11MeshHWMPconfirmationInterval,
5145 1, 65535, mask,
728b19e5 5146 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 5147 nla_get_u16);
3b1c5a53
MP		 5148 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5149 NL80211_MESH_POWER_ACTIVE,
5150 NL80211_MESH_POWER_MAX,
5151 mask, NL80211_MESHCONF_POWER_MODE,
5152 nla_get_u32);
5153 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5154 0, 65535, mask,
5155 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
8e7c0538
CT		 5156 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5157 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5158 nla_get_u32);
bd90fdcc
JB		 5159 if (mask_out)
5160 *mask_out = mask;
c80d545d 5161
bd90fdcc
JB		 5162 return 0;
5163
5164#undef FILL_IN_MESH_PARAM_IF_SET
5165}
5166
c80d545d
JC		 5167static int nl80211_parse_mesh_setup(struct genl_info *info,
5168 struct mesh_setup *setup)
5169{
bb2798d4 5170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c80d545d
JC		 5171 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5172
5173 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5174 return -EINVAL;
5175 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5176 info->attrs[NL80211_ATTR_MESH_SETUP],
5177 nl80211_mesh_setup_params_policy))
5178 return -EINVAL;
5179
d299a1f2
JC		 5180 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5181 setup->sync_method =
5182 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5183 IEEE80211_SYNC_METHOD_VENDOR :
5184 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5185
c80d545d
JC		 5186 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5187 setup->path_sel_proto =
5188 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5189 IEEE80211_PATH_PROTOCOL_VENDOR :
5190 IEEE80211_PATH_PROTOCOL_HWMP;
5191
5192 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5193 setup->path_metric =
5194 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5195 IEEE80211_PATH_METRIC_VENDOR :
5196 IEEE80211_PATH_METRIC_AIRTIME;
5197
581a8b0f
JC		 5198
5199 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 5200 struct nlattr *ieattr =
581a8b0f 5201 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 5202 if (!is_valid_ie_attr(ieattr))
5203 return -EINVAL;
581a8b0f
JC		 5204 setup->ie = nla_data(ieattr);
5205 setup->ie_len = nla_len(ieattr);
c80d545d 5206 }
bb2798d4
TP		 5207 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5208 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5209 return -EINVAL;
5210 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
b130e5ce
JC		 5211 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5212 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
bb2798d4
TP		 5213 if (setup->is_secure)
5214 setup->user_mpm = true;
c80d545d 5215
6e16d90b
CT		 5216 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5217 if (!setup->user_mpm)
5218 return -EINVAL;
5219 setup->auth_id =
5220 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5221 }
5222
c80d545d
JC		 5223 return 0;
5224}
5225
24bdd9f4 5226static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 5227 struct genl_info *info)
bd90fdcc
JB		 5228{
5229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5230 struct net_device *dev = info->user_ptr[1];
29cbe68c 5231 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 5232 struct mesh_config cfg;
5233 u32 mask;
5234 int err;
5235
29cbe68c
JB		 5236 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5237 return -EOPNOTSUPP;
5238
24bdd9f4 5239 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 5240 return -EOPNOTSUPP;
5241
24bdd9f4 5242 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 5243 if (err)
5244 return err;
5245
29cbe68c
JB		 5246 wdev_lock(wdev);
5247 if (!wdev->mesh_id_len)
5248 err = -ENOLINK;
5249
5250 if (!err)
e35e4d28 5251 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 5252
5253 wdev_unlock(wdev);
5254
5255 return err;
93da9cc1 5256}
5257
f130347c
LR		 5258static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5259{
458f4f9e 5260 const struct ieee80211_regdomain *regdom;
f130347c
LR		 5261 struct sk_buff *msg;
5262 void *hdr = NULL;
5263 struct nlattr *nl_reg_rules;
5264 unsigned int i;
f130347c
LR		 5265
5266 if (!cfg80211_regdomain)
5fe231e8 5267 return -EINVAL;
f130347c 5268
fd2120ca 5269 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5fe231e8
JB		 5270 if (!msg)
5271 return -ENOBUFS;
f130347c 5272
15e47304 5273 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 5274 NL80211_CMD_GET_REG);
5275 if (!hdr)
efe1cf0c 5276 goto put_failure;
f130347c 5277
57b5ce07
LR		 5278 if (reg_last_request_cell_base() &&
5279 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5280 NL80211_USER_REG_HINT_CELL_BASE))
5281 goto nla_put_failure;
5282
458f4f9e
JB		 5283 rcu_read_lock();
5284 regdom = rcu_dereference(cfg80211_regdomain);
5285
5286 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5287 (regdom->dfs_region &&
5288 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5289 goto nla_put_failure_rcu;
5290
f130347c
LR		 5291 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5292 if (!nl_reg_rules)
458f4f9e 5293 goto nla_put_failure_rcu;
f130347c 5294
458f4f9e 5295 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 5296 struct nlattr *nl_reg_rule;
5297 const struct ieee80211_reg_rule *reg_rule;
5298 const struct ieee80211_freq_range *freq_range;
5299 const struct ieee80211_power_rule *power_rule;
97524820 5300 unsigned int max_bandwidth_khz;
f130347c 5301
458f4f9e 5302 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 5303 freq_range = &reg_rule->freq_range;
5304 power_rule = &reg_rule->power_rule;
5305
5306 nl_reg_rule = nla_nest_start(msg, i);
5307 if (!nl_reg_rule)
458f4f9e 5308 goto nla_put_failure_rcu;
f130347c 5309
97524820
JD		 5310 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5311 if (!max_bandwidth_khz)
5312 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5313 reg_rule);
5314
9360ffd1
DM		 5315 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5316 reg_rule->flags) ||
5317 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5318 freq_range->start_freq_khz) ||
5319 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5320 freq_range->end_freq_khz) ||
5321 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
97524820 5322 max_bandwidth_khz) ||
9360ffd1
DM		 5323 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5324 power_rule->max_antenna_gain) ||
5325 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
089027e5
JD		 5326 power_rule->max_eirp) ||
5327 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5328 reg_rule->dfs_cac_ms))
458f4f9e 5329 goto nla_put_failure_rcu;
f130347c
LR		 5330
5331 nla_nest_end(msg, nl_reg_rule);
5332 }
458f4f9e 5333 rcu_read_unlock();
f130347c
LR		 5334
5335 nla_nest_end(msg, nl_reg_rules);
5336
5337 genlmsg_end(msg, hdr);
5fe231e8 5338 return genlmsg_reply(msg, info);
f130347c 5339
458f4f9e
JB		 5340nla_put_failure_rcu:
5341 rcu_read_unlock();
f130347c
LR		 5342nla_put_failure:
5343 genlmsg_cancel(msg, hdr);
efe1cf0c 5344put_failure:
d080e275 5345 nlmsg_free(msg);
5fe231e8 5346 return -EMSGSIZE;
f130347c
LR		 5347}
5348
b2e1b302
LR		 5349static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5350{
5351 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5352 struct nlattr *nl_reg_rule;
5353 char *alpha2 = NULL;
5354 int rem_reg_rules = 0, r = 0;
5355 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4c7d3982 5356 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
b2e1b302
LR		 5357 struct ieee80211_regdomain *rd = NULL;
5358
5359 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5360 return -EINVAL;
5361
5362 if (!info->attrs[NL80211_ATTR_REG_RULES])
5363 return -EINVAL;
5364
5365 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5366
8b60b078
LR		 5367 if (info->attrs[NL80211_ATTR_DFS_REGION])
5368 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5369
b2e1b302 5370 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5371 rem_reg_rules) {
b2e1b302
LR		 5372 num_rules++;
5373 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 5374 return -EINVAL;
b2e1b302
LR		 5375 }
5376
e438768f
LR		 5377 if (!reg_is_valid_request(alpha2))
5378 return -EINVAL;
5379
b2e1b302 5380 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 5381 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 5382
5383 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 5384 if (!rd)
5385 return -ENOMEM;
b2e1b302
LR		 5386
5387 rd->n_reg_rules = num_rules;
5388 rd->alpha2[0] = alpha2[0];
5389 rd->alpha2[1] = alpha2[1];
5390
8b60b078
LR		 5391 /*
5392 * Disable DFS master mode if the DFS region was
5393 * not supported or known on this kernel.
5394 */
5395 if (reg_supported_dfs_region(dfs_region))
5396 rd->dfs_region = dfs_region;
5397
b2e1b302 5398 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 5399 rem_reg_rules) {
ae811e21
JB		 5400 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5401 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5402 reg_rule_policy);
5403 if (r)
5404 goto bad_reg;
b2e1b302
LR		 5405 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5406 if (r)
5407 goto bad_reg;
5408
5409 rule_idx++;
5410
d0e18f83
LR		 5411 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5412 r = -EINVAL;
b2e1b302 5413 goto bad_reg;
d0e18f83 5414 }
b2e1b302
LR		 5415 }
5416
b2e1b302 5417 r = set_regdom(rd);
6913b49a 5418 /* set_regdom took ownership */
1a919318 5419 rd = NULL;
b2e1b302 5420
d2372b31 5421 bad_reg:
b2e1b302 5422 kfree(rd);
d0e18f83 5423 return r;
b2e1b302
LR		 5424}
5425
83f5e2cf
JB		 5426static int validate_scan_freqs(struct nlattr *freqs)
5427{
5428 struct nlattr *attr1, *attr2;
5429 int n_channels = 0, tmp1, tmp2;
5430
5431 nla_for_each_nested(attr1, freqs, tmp1) {
5432 n_channels++;
5433 /*
5434 * Some hardware has a limited channel list for
5435 * scanning, and it is pretty much nonsensical
5436 * to scan for a channel twice, so disallow that
5437 * and don't require drivers to check that the
5438 * channel list they get isn't longer than what
5439 * they can scan, as long as they can scan all
5440 * the channels they registered at once.
5441 */
5442 nla_for_each_nested(attr2, freqs, tmp2)
5443 if (attr1 != attr2 &&
5444 nla_get_u32(attr1) == nla_get_u32(attr2))
5445 return 0;
5446 }
5447
5448 return n_channels;
5449}
5450
2a519311
JB		 5451static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5452{
4c476991 5453 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 5454 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 5455 struct cfg80211_scan_request *request;
2a519311
JB		 5456 struct nlattr *attr;
5457 struct wiphy *wiphy;
83f5e2cf 5458 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 5459 size_t ie_len;
2a519311 5460
f4a11bb0
JB		 5461 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5462 return -EINVAL;
5463
79c97e97 5464 wiphy = &rdev->wiphy;
2a519311 5465
4c476991
JB		 5466 if (!rdev->ops->scan)
5467 return -EOPNOTSUPP;
2a519311 5468
f9d15d16 5469 if (rdev->scan_req || rdev->scan_msg) {
f9f47529
JB		 5470 err = -EBUSY;
5471 goto unlock;
5472 }
2a519311
JB		 5473
5474 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 5475 n_channels = validate_scan_freqs(
5476 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
f9f47529
JB		 5477 if (!n_channels) {
5478 err = -EINVAL;
5479 goto unlock;
5480 }
2a519311 5481 } else {
bdfbec2d 5482 n_channels = ieee80211_get_num_supported_channels(wiphy);
2a519311
JB		 5483 }
5484
5485 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5486 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5487 n_ssids++;
5488
f9f47529
JB		 5489 if (n_ssids > wiphy->max_scan_ssids) {
5490 err = -EINVAL;
5491 goto unlock;
5492 }
2a519311 5493
70692ad2
JM		 5494 if (info->attrs[NL80211_ATTR_IE])
5495 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5496 else
5497 ie_len = 0;
5498
f9f47529
JB		 5499 if (ie_len > wiphy->max_scan_ie_len) {
5500 err = -EINVAL;
5501 goto unlock;
5502 }
18a83659 5503
2a519311 5504 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 5505 + sizeof(*request->ssids) * n_ssids
5506 + sizeof(*request->channels) * n_channels
70692ad2 5507 + ie_len, GFP_KERNEL);
f9f47529
JB		 5508 if (!request) {
5509 err = -ENOMEM;
5510 goto unlock;
5511 }
2a519311 5512
2a519311 5513 if (n_ssids)
5ba63533 5514 request->ssids = (void *)&request->channels[n_channels];
2a519311 5515 request->n_ssids = n_ssids;
70692ad2
JM		 5516 if (ie_len) {
5517 if (request->ssids)
5518 request->ie = (void *)(request->ssids + n_ssids);
5519 else
5520 request->ie = (void *)(request->channels + n_channels);
5521 }
2a519311 5522
584991dc 5523 i = 0;
2a519311
JB		 5524 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5525 /* user specified, bail out if channel not found */
2a519311 5526 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 5527 struct ieee80211_channel *chan;
5528
5529 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5530
5531 if (!chan) {
2a519311
JB		 5532 err = -EINVAL;
5533 goto out_free;
5534 }
584991dc
JB		 5535
5536 /* ignore disabled channels */
5537 if (chan->flags & IEEE80211_CHAN_DISABLED)
5538 continue;
5539
5540 request->channels[i] = chan;
2a519311
JB		 5541 i++;
5542 }
5543 } else {
34850ab2
JB		 5544 enum ieee80211_band band;
5545
2a519311 5546 /* all channels */
2a519311
JB		 5547 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5548 int j;
5549 if (!wiphy->bands[band])
5550 continue;
5551 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 5552 struct ieee80211_channel *chan;
5553
5554 chan = &wiphy->bands[band]->channels[j];
5555
5556 if (chan->flags & IEEE80211_CHAN_DISABLED)
5557 continue;
5558
5559 request->channels[i] = chan;
2a519311
JB		 5560 i++;
5561 }
5562 }
5563 }
5564
584991dc
JB		 5565 if (!i) {
5566 err = -EINVAL;
5567 goto out_free;
5568 }
5569
5570 request->n_channels = i;
5571
2a519311
JB		 5572 i = 0;
5573 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5574 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 5575 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 5576 err = -EINVAL;
5577 goto out_free;
5578 }
57a27e1d 5579 request->ssids[i].ssid_len = nla_len(attr);
2a519311 5580 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 5581 i++;
5582 }
5583 }
5584
70692ad2
JM		 5585 if (info->attrs[NL80211_ATTR_IE]) {
5586 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 5587 memcpy((void *)request->ie,
5588 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 5589 request->ie_len);
5590 }
5591
34850ab2 5592 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 5593 if (wiphy->bands[i])
5594 request->rates[i] =
5595 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 5596
5597 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5598 nla_for_each_nested(attr,
5599 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5600 tmp) {
5601 enum ieee80211_band band = nla_type(attr);
5602
84404623 5603 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 5604 err = -EINVAL;
5605 goto out_free;
5606 }
1b09cd82
FF		 5607
5608 if (!wiphy->bands[band])
5609 continue;
5610
34850ab2
JB		 5611 err = ieee80211_get_ratemask(wiphy->bands[band],
5612 nla_data(attr),
5613 nla_len(attr),
5614 &request->rates[band]);
5615 if (err)
5616 goto out_free;
5617 }
5618 }
5619
46856bbf 5620 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5621 request->flags = nla_get_u32(
5622 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5623 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5624 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5625 err = -EOPNOTSUPP;
5626 goto out_free;
5627 }
5628 }
ed473771 5629
e9f935e3
RM		 5630 request->no_cck =
5631 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5632
fd014284 5633 request->wdev = wdev;
79c97e97 5634 request->wiphy = &rdev->wiphy;
15d6030b 5635 request->scan_start = jiffies;
2a519311 5636
79c97e97 5637 rdev->scan_req = request;
e35e4d28 5638 err = rdev_scan(rdev, request);
2a519311 5639
463d0183 5640 if (!err) {
fd014284
JB		 5641 nl80211_send_scan_start(rdev, wdev);
5642 if (wdev->netdev)
5643 dev_hold(wdev->netdev);
4c476991 5644 } else {
2a519311 5645 out_free:
79c97e97 5646 rdev->scan_req = NULL;
2a519311
JB		 5647 kfree(request);
5648 }
3b85875a 5649
f9f47529 5650 unlock:
2a519311
JB		 5651 return err;
5652}
5653
807f8a8c
LC		 5654static int nl80211_start_sched_scan(struct sk_buff *skb,
5655 struct genl_info *info)
5656{
5657 struct cfg80211_sched_scan_request *request;
5658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5659 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 5660 struct nlattr *attr;
5661 struct wiphy *wiphy;
a1f1c21c 5662 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 5663 u32 interval;
807f8a8c
LC		 5664 enum ieee80211_band band;
5665 size_t ie_len;
a1f1c21c 5666 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
ea73cbce 5667 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
807f8a8c
LC		 5668
5669 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5670 !rdev->ops->sched_scan_start)
5671 return -EOPNOTSUPP;
5672
5673 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5674 return -EINVAL;
5675
bbe6ad6d
LC		 5676 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5677 return -EINVAL;
5678
5679 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5680 if (interval == 0)
5681 return -EINVAL;
5682
807f8a8c
LC		 5683 wiphy = &rdev->wiphy;
5684
5685 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5686 n_channels = validate_scan_freqs(
5687 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5688 if (!n_channels)
5689 return -EINVAL;
5690 } else {
bdfbec2d 5691 n_channels = ieee80211_get_num_supported_channels(wiphy);
807f8a8c
LC		 5692 }
5693
5694 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5695 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5696 tmp)
5697 n_ssids++;
5698
93b6aa69 5699 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 5700 return -EINVAL;
5701
ea73cbce
JB		 5702 /*
5703 * First, count the number of 'real' matchsets. Due to an issue with
5704 * the old implementation, matchsets containing only the RSSI attribute
5705 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5706 * RSSI for all matchsets, rather than their own matchset for reporting
5707 * all APs with a strong RSSI. This is needed to be compatible with
5708 * older userspace that treated a matchset with only the RSSI as the
5709 * global RSSI for all other matchsets - if there are other matchsets.
5710 */
5711 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
a1f1c21c
LC		 5712 nla_for_each_nested(attr,
5713 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
ea73cbce
JB		 5714 tmp) {
5715 struct nlattr *rssi;
5716
5717 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5718 nla_data(attr), nla_len(attr),
5719 nl80211_match_policy);
5720 if (err)
5721 return err;
5722 /* add other standalone attributes here */
5723 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5724 n_match_sets++;
5725 continue;
5726 }
5727 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5728 if (rssi)
5729 default_match_rssi = nla_get_s32(rssi);
5730 }
5731 }
5732
5733 /* However, if there's no other matchset, add the RSSI one */
5734 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5735 n_match_sets = 1;
a1f1c21c
LC		 5736
5737 if (n_match_sets > wiphy->max_match_sets)
5738 return -EINVAL;
5739
807f8a8c
LC		 5740 if (info->attrs[NL80211_ATTR_IE])
5741 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5742 else
5743 ie_len = 0;
5744
5a865bad 5745 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 5746 return -EINVAL;
5747
c10841ca
LC		 5748 if (rdev->sched_scan_req) {
5749 err = -EINPROGRESS;
5750 goto out;
5751 }
5752
807f8a8c 5753 request = kzalloc(sizeof(*request)
a2cd43c5 5754 + sizeof(*request->ssids) * n_ssids
a1f1c21c 5755 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 5756 + sizeof(*request->channels) * n_channels
807f8a8c 5757 + ie_len, GFP_KERNEL);
c10841ca
LC		 5758 if (!request) {
5759 err = -ENOMEM;
5760 goto out;
5761 }
807f8a8c
LC		 5762
5763 if (n_ssids)
5764 request->ssids = (void *)&request->channels[n_channels];
5765 request->n_ssids = n_ssids;
5766 if (ie_len) {
5767 if (request->ssids)
5768 request->ie = (void *)(request->ssids + n_ssids);
5769 else
5770 request->ie = (void *)(request->channels + n_channels);
5771 }
5772
a1f1c21c
LC		 5773 if (n_match_sets) {
5774 if (request->ie)
5775 request->match_sets = (void *)(request->ie + ie_len);
5776 else if (request->ssids)
5777 request->match_sets =
5778 (void *)(request->ssids + n_ssids);
5779 else
5780 request->match_sets =
5781 (void *)(request->channels + n_channels);
5782 }
5783 request->n_match_sets = n_match_sets;
5784
807f8a8c
LC		 5785 i = 0;
5786 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5787 /* user specified, bail out if channel not found */
5788 nla_for_each_nested(attr,
5789 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5790 tmp) {
5791 struct ieee80211_channel *chan;
5792
5793 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5794
5795 if (!chan) {
5796 err = -EINVAL;
5797 goto out_free;
5798 }
5799
5800 /* ignore disabled channels */
5801 if (chan->flags & IEEE80211_CHAN_DISABLED)
5802 continue;
5803
5804 request->channels[i] = chan;
5805 i++;
5806 }
5807 } else {
5808 /* all channels */
5809 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5810 int j;
5811 if (!wiphy->bands[band])
5812 continue;
5813 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5814 struct ieee80211_channel *chan;
5815
5816 chan = &wiphy->bands[band]->channels[j];
5817
5818 if (chan->flags & IEEE80211_CHAN_DISABLED)
5819 continue;
5820
5821 request->channels[i] = chan;
5822 i++;
5823 }
5824 }
5825 }
5826
5827 if (!i) {
5828 err = -EINVAL;
5829 goto out_free;
5830 }
5831
5832 request->n_channels = i;
5833
5834 i = 0;
5835 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5836 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5837 tmp) {
57a27e1d 5838 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5839 err = -EINVAL;
5840 goto out_free;
5841 }
57a27e1d 5842 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5843 memcpy(request->ssids[i].ssid, nla_data(attr),
5844 nla_len(attr));
807f8a8c
LC		 5845 i++;
5846 }
5847 }
5848
a1f1c21c
LC		 5849 i = 0;
5850 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5851 nla_for_each_nested(attr,
5852 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5853 tmp) {
88e920b4 5854 struct nlattr *ssid, *rssi;
a1f1c21c 5855
ae811e21
JB		 5856 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5857 nla_data(attr), nla_len(attr),
5858 nl80211_match_policy);
5859 if (err)
5860 goto out_free;
4a4ab0d7 5861 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c 5862 if (ssid) {
ea73cbce
JB		 5863 if (WARN_ON(i >= n_match_sets)) {
5864 /* this indicates a programming error,
5865 * the loop above should have verified
5866 * things properly
5867 */
5868 err = -EINVAL;
5869 goto out_free;
5870 }
5871
a1f1c21c
LC		 5872 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5873 err = -EINVAL;
5874 goto out_free;
5875 }
5876 memcpy(request->match_sets[i].ssid.ssid,
5877 nla_data(ssid), nla_len(ssid));
5878 request->match_sets[i].ssid.ssid_len =
5879 nla_len(ssid);
ea73cbce
JB		 5880 /* special attribute - old implemenation w/a */
5881 request->match_sets[i].rssi_thold =
5882 default_match_rssi;
5883 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5884 if (rssi)
5885 request->match_sets[i].rssi_thold =
5886 nla_get_s32(rssi);
a1f1c21c
LC		 5887 }
5888 i++;
5889 }
ea73cbce
JB		 5890
5891 /* there was no other matchset, so the RSSI one is alone */
5892 if (i == 0)
5893 request->match_sets[0].rssi_thold = default_match_rssi;
5894
5895 request->min_rssi_thold = INT_MAX;
5896 for (i = 0; i < n_match_sets; i++)
5897 request->min_rssi_thold =
5898 min(request->match_sets[i].rssi_thold,
5899 request->min_rssi_thold);
5900 } else {
5901 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5902 }
5903
9900e484
JB		 5904 if (ie_len) {
5905 request->ie_len = ie_len;
807f8a8c
LC		 5906 memcpy((void *)request->ie,
5907 nla_data(info->attrs[NL80211_ATTR_IE]),
5908 request->ie_len);
5909 }
5910
46856bbf 5911 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5912 request->flags = nla_get_u32(
5913 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
00c3a6ed
JB		 5914 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5915 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
46856bbf
SL		 5916 err = -EOPNOTSUPP;
5917 goto out_free;
5918 }
5919 }
ed473771 5920
807f8a8c
LC		 5921 request->dev = dev;
5922 request->wiphy = &rdev->wiphy;
bbe6ad6d 5923 request->interval = interval;
15d6030b 5924 request->scan_start = jiffies;
807f8a8c 5925
e35e4d28 5926 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5927 if (!err) {
5928 rdev->sched_scan_req = request;
5929 nl80211_send_sched_scan(rdev, dev,
5930 NL80211_CMD_START_SCHED_SCAN);
5931 goto out;
5932 }
5933
5934out_free:
5935 kfree(request);
5936out:
5937 return err;
5938}
5939
5940static int nl80211_stop_sched_scan(struct sk_buff *skb,
5941 struct genl_info *info)
5942{
5943 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5944
5945 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5946 !rdev->ops->sched_scan_stop)
5947 return -EOPNOTSUPP;
5948
5fe231e8 5949 return __cfg80211_stop_sched_scan(rdev, false);
807f8a8c
LC		 5950}
5951
04f39047
SW		 5952static int nl80211_start_radar_detection(struct sk_buff *skb,
5953 struct genl_info *info)
5954{
5955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5956 struct net_device *dev = info->user_ptr[1];
5957 struct wireless_dev *wdev = dev->ieee80211_ptr;
5958 struct cfg80211_chan_def chandef;
55f7435c 5959 enum nl80211_dfs_regions dfs_region;
31559f35 5960 unsigned int cac_time_ms;
04f39047
SW		 5961 int err;
5962
55f7435c
LR		 5963 dfs_region = reg_get_dfs_region(wdev->wiphy);
5964 if (dfs_region == NL80211_DFS_UNSET)
5965 return -EINVAL;
5966
04f39047
SW		 5967 err = nl80211_parse_chandef(rdev, info, &chandef);
5968 if (err)
5969 return err;
5970
ff311bc1
SW		 5971 if (netif_carrier_ok(dev))
5972 return -EBUSY;
5973
04f39047
SW		 5974 if (wdev->cac_started)
5975 return -EBUSY;
5976
2beb6dab 5977 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
00ec75fc 5978 wdev->iftype);
04f39047
SW		 5979 if (err < 0)
5980 return err;
5981
5982 if (err == 0)
5983 return -EINVAL;
5984
fe7c3a1f 5985 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
04f39047
SW		 5986 return -EINVAL;
5987
5988 if (!rdev->ops->start_radar_detection)
5989 return -EOPNOTSUPP;
5990
31559f35
JD		 5991 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5992 if (WARN_ON(!cac_time_ms))
5993 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5994
5995 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5996 cac_time_ms);
04f39047 5997 if (!err) {
9e0e2961 5998 wdev->chandef = chandef;
04f39047
SW		 5999 wdev->cac_started = true;
6000 wdev->cac_start_time = jiffies;
31559f35 6001 wdev->cac_time_ms = cac_time_ms;
04f39047 6002 }
04f39047
SW		 6003 return err;
6004}
6005
16ef1fe2
SW		 6006static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6007{
6008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6009 struct net_device *dev = info->user_ptr[1];
6010 struct wireless_dev *wdev = dev->ieee80211_ptr;
6011 struct cfg80211_csa_settings params;
6012 /* csa_attrs is defined static to avoid waste of stack size - this
6013 * function is called under RTNL lock, so this should not be a problem.
6014 */
6015 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6016 u8 radar_detect_width = 0;
6017 int err;
ee4bc9e7 6018 bool need_new_beacon = false;
9a774c78 6019 int len, i;
16ef1fe2
SW		 6020
6021 if (!rdev->ops->channel_switch ||
6022 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6023 return -EOPNOTSUPP;
6024
ee4bc9e7
SW		 6025 switch (dev->ieee80211_ptr->iftype) {
6026 case NL80211_IFTYPE_AP:
6027 case NL80211_IFTYPE_P2P_GO:
6028 need_new_beacon = true;
6029
6030 /* useless if AP is not running */
6031 if (!wdev->beacon_interval)
1ff79dfa 6032 return -ENOTCONN;
ee4bc9e7
SW		 6033 break;
6034 case NL80211_IFTYPE_ADHOC:
1ff79dfa
JB		 6035 if (!wdev->ssid_len)
6036 return -ENOTCONN;
6037 break;
c6da674a 6038 case NL80211_IFTYPE_MESH_POINT:
1ff79dfa
JB		 6039 if (!wdev->mesh_id_len)
6040 return -ENOTCONN;
ee4bc9e7
SW		 6041 break;
6042 default:
16ef1fe2 6043 return -EOPNOTSUPP;
ee4bc9e7 6044 }
16ef1fe2
SW		 6045
6046 memset(&params, 0, sizeof(params));
6047
6048 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6049 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6050 return -EINVAL;
6051
6052 /* only important for AP, IBSS and mesh create IEs internally */
d0a361a5 6053 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
16ef1fe2
SW		 6054 return -EINVAL;
6055
6056 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6057
ee4bc9e7
SW		 6058 if (!need_new_beacon)
6059 goto skip_beacons;
6060
16ef1fe2
SW		 6061 err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
6062 if (err)
6063 return err;
6064
6065 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6066 info->attrs[NL80211_ATTR_CSA_IES],
6067 nl80211_policy);
6068 if (err)
6069 return err;
6070
6071 err = nl80211_parse_beacon(csa_attrs, &params.beacon_csa);
6072 if (err)
6073 return err;
6074
6075 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6076 return -EINVAL;
6077
9a774c78
AO		 6078 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6079 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6080 return -EINVAL;
6081
9a774c78
AO		 6082 params.n_counter_offsets_beacon = len / sizeof(u16);
6083 if (rdev->wiphy.max_num_csa_counters &&
6084 (params.n_counter_offsets_beacon >
6085 rdev->wiphy.max_num_csa_counters))
16ef1fe2
SW		 6086 return -EINVAL;
6087
9a774c78
AO		 6088 params.counter_offsets_beacon =
6089 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6090
6091 /* sanity checks - counters should fit and be the same */
6092 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6093 u16 offset = params.counter_offsets_beacon[i];
6094
6095 if (offset >= params.beacon_csa.tail_len)
6096 return -EINVAL;
6097
6098 if (params.beacon_csa.tail[offset] != params.count)
6099 return -EINVAL;
6100 }
6101
16ef1fe2 6102 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
9a774c78
AO		 6103 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6104 if (!len || (len % sizeof(u16)))
16ef1fe2
SW		 6105 return -EINVAL;
6106
9a774c78
AO		 6107 params.n_counter_offsets_presp = len / sizeof(u16);
6108 if (rdev->wiphy.max_num_csa_counters &&
6109 (params.n_counter_offsets_beacon >
6110 rdev->wiphy.max_num_csa_counters))
16ef1fe2 6111 return -EINVAL;
9a774c78
AO		 6112
6113 params.counter_offsets_presp =
6114 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6115
6116 /* sanity checks - counters should fit and be the same */
6117 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6118 u16 offset = params.counter_offsets_presp[i];
6119
6120 if (offset >= params.beacon_csa.probe_resp_len)
6121 return -EINVAL;
6122
6123 if (params.beacon_csa.probe_resp[offset] !=
6124 params.count)
6125 return -EINVAL;
6126 }
16ef1fe2
SW		 6127 }
6128
ee4bc9e7 6129skip_beacons:
16ef1fe2
SW		 6130 err = nl80211_parse_chandef(rdev, info, &params.chandef);
6131 if (err)
6132 return err;
6133
174e0cd2
IP		 6134 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef,
6135 wdev->iftype))
16ef1fe2
SW		 6136 return -EINVAL;
6137
2beb6dab
LC		 6138 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6139 &params.chandef,
6140 wdev->iftype);
6141 if (err < 0)
6142 return err;
6143
6144 if (err > 0) {
6145 radar_detect_width = BIT(params.chandef.width);
6146 params.radar_required = true;
16ef1fe2
SW		 6147 }
6148
16ef1fe2
SW		 6149 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6150 params.block_tx = true;
6151
c56589ed
SW		 6152 wdev_lock(wdev);
6153 err = rdev_channel_switch(rdev, dev, &params);
6154 wdev_unlock(wdev);
6155
6156 return err;
16ef1fe2
SW		 6157}
6158
9720bb3a
JB		 6159static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6160 u32 seq, int flags,
2a519311 6161 struct cfg80211_registered_device *rdev,
48ab905d
JB		 6162 struct wireless_dev *wdev,
6163 struct cfg80211_internal_bss *intbss)
2a519311 6164{
48ab905d 6165 struct cfg80211_bss *res = &intbss->pub;
9caf0364 6166 const struct cfg80211_bss_ies *ies;
2a519311
JB		 6167 void *hdr;
6168 struct nlattr *bss;
48ab905d
JB		 6169
6170 ASSERT_WDEV_LOCK(wdev);
2a519311 6171
15e47304 6172 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 6173 NL80211_CMD_NEW_SCAN_RESULTS);
6174 if (!hdr)
6175 return -1;
6176
9720bb3a
JB		 6177 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6178
97990a06
JB		 6179 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6180 goto nla_put_failure;
6181 if (wdev->netdev &&
9360ffd1
DM		 6182 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6183 goto nla_put_failure;
97990a06
JB		 6184 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6185 goto nla_put_failure;
2a519311
JB		 6186
6187 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6188 if (!bss)
6189 goto nla_put_failure;
9360ffd1 6190 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 6191 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 6192 goto nla_put_failure;
9caf0364
JB		 6193
6194 rcu_read_lock();
0e227084
JB		 6195 /* indicate whether we have probe response data or not */
6196 if (rcu_access_pointer(res->proberesp_ies) &&
6197 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6198 goto fail_unlock_rcu;
6199
6200 /* this pointer prefers to be pointed to probe response data
6201 * but is always valid
6202 */
9caf0364 6203 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 6204 if (ies) {
6205 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6206 goto fail_unlock_rcu;
8cef2c9d
JB		 6207 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6208 ies->len, ies->data))
6209 goto fail_unlock_rcu;
9caf0364 6210 }
0e227084
JB		 6211
6212 /* and this pointer is always (unless driver didn't know) beacon data */
9caf0364 6213 ies = rcu_dereference(res->beacon_ies);
0e227084
JB		 6214 if (ies && ies->from_beacon) {
6215 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
8cef2c9d
JB		 6216 goto fail_unlock_rcu;
6217 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6218 ies->len, ies->data))
6219 goto fail_unlock_rcu;
9caf0364
JB		 6220 }
6221 rcu_read_unlock();
6222
9360ffd1
DM		 6223 if (res->beacon_interval &&
6224 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6225 goto nla_put_failure;
6226 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6227 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
dcd6eac1 6228 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
9360ffd1
DM		 6229 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6230 jiffies_to_msecs(jiffies - intbss->ts)))
6231 goto nla_put_failure;
2a519311 6232
77965c97 6233 switch (rdev->wiphy.signal_type) {
2a519311 6234 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 6235 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6236 goto nla_put_failure;
2a519311
JB		 6237 break;
6238 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 6239 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6240 goto nla_put_failure;
2a519311
JB		 6241 break;
6242 default:
6243 break;
6244 }
6245
48ab905d 6246 switch (wdev->iftype) {
074ac8df 6247 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 6248 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 6249 if (intbss == wdev->current_bss &&
6250 nla_put_u32(msg, NL80211_BSS_STATUS,
6251 NL80211_BSS_STATUS_ASSOCIATED))
6252 goto nla_put_failure;
48ab905d
JB		 6253 break;
6254 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 6255 if (intbss == wdev->current_bss &&
6256 nla_put_u32(msg, NL80211_BSS_STATUS,
6257 NL80211_BSS_STATUS_IBSS_JOINED))
6258 goto nla_put_failure;
48ab905d
JB		 6259 break;
6260 default:
6261 break;
6262 }
6263
2a519311
JB		 6264 nla_nest_end(msg, bss);
6265
6266 return genlmsg_end(msg, hdr);
6267
8cef2c9d
JB		 6268 fail_unlock_rcu:
6269 rcu_read_unlock();
2a519311
JB		 6270 nla_put_failure:
6271 genlmsg_cancel(msg, hdr);
6272 return -EMSGSIZE;
6273}
6274
97990a06 6275static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
2a519311 6276{
48ab905d 6277 struct cfg80211_registered_device *rdev;
2a519311 6278 struct cfg80211_internal_bss *scan;
48ab905d 6279 struct wireless_dev *wdev;
97990a06 6280 int start = cb->args[2], idx = 0;
2a519311
JB		 6281 int err;
6282
97990a06 6283 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6284 if (err)
6285 return err;
2a519311 6286
48ab905d
JB		 6287 wdev_lock(wdev);
6288 spin_lock_bh(&rdev->bss_lock);
6289 cfg80211_bss_expire(rdev);
6290
9720bb3a
JB		 6291 cb->seq = rdev->bss_generation;
6292
48ab905d 6293 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 6294 if (++idx <= start)
6295 continue;
9720bb3a 6296 if (nl80211_send_bss(skb, cb,
2a519311 6297 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 6298 rdev, wdev, scan) < 0) {
2a519311 6299 idx--;
67748893 6300 break;
2a519311
JB		 6301 }
6302 }
6303
48ab905d
JB		 6304 spin_unlock_bh(&rdev->bss_lock);
6305 wdev_unlock(wdev);
2a519311 6306
97990a06
JB		 6307 cb->args[2] = idx;
6308 nl80211_finish_wdev_dump(rdev);
2a519311 6309
67748893 6310 return skb->len;
2a519311
JB		 6311}
6312
15e47304 6313static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 6314 int flags, struct net_device *dev,
6315 struct survey_info *survey)
6316{
6317 void *hdr;
6318 struct nlattr *infoattr;
6319
15e47304 6320 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 6321 NL80211_CMD_NEW_SURVEY_RESULTS);
6322 if (!hdr)
6323 return -ENOMEM;
6324
9360ffd1
DM		 6325 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6326 goto nla_put_failure;
61fa713c
HS		 6327
6328 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6329 if (!infoattr)
6330 goto nla_put_failure;
6331
9360ffd1
DM		 6332 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6333 survey->channel->center_freq))
6334 goto nla_put_failure;
6335
6336 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6337 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6338 goto nla_put_failure;
6339 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6340 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6341 goto nla_put_failure;
6342 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6343 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6344 survey->channel_time))
6345 goto nla_put_failure;
6346 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6347 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6348 survey->channel_time_busy))
6349 goto nla_put_failure;
6350 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6351 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6352 survey->channel_time_ext_busy))
6353 goto nla_put_failure;
6354 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6355 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6356 survey->channel_time_rx))
6357 goto nla_put_failure;
6358 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6359 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6360 survey->channel_time_tx))
6361 goto nla_put_failure;
61fa713c
HS		 6362
6363 nla_nest_end(msg, infoattr);
6364
6365 return genlmsg_end(msg, hdr);
6366
6367 nla_put_failure:
6368 genlmsg_cancel(msg, hdr);
6369 return -EMSGSIZE;
6370}
6371
6372static int nl80211_dump_survey(struct sk_buff *skb,
6373 struct netlink_callback *cb)
6374{
6375 struct survey_info survey;
1b8ec87a 6376 struct cfg80211_registered_device *rdev;
97990a06
JB		 6377 struct wireless_dev *wdev;
6378 int survey_idx = cb->args[2];
61fa713c
HS		 6379 int res;
6380
1b8ec87a 6381 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
67748893
JB		 6382 if (res)
6383 return res;
61fa713c 6384
97990a06
JB		 6385 if (!wdev->netdev) {
6386 res = -EINVAL;
6387 goto out_err;
6388 }
6389
1b8ec87a 6390 if (!rdev->ops->dump_survey) {
61fa713c
HS		 6391 res = -EOPNOTSUPP;
6392 goto out_err;
6393 }
6394
6395 while (1) {
180cdc79
LR		 6396 struct ieee80211_channel *chan;
6397
1b8ec87a 6398 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
61fa713c
HS		 6399 if (res == -ENOENT)
6400 break;
6401 if (res)
6402 goto out_err;
6403
180cdc79
LR		 6404 /* Survey without a channel doesn't make sense */
6405 if (!survey.channel) {
6406 res = -EINVAL;
6407 goto out;
6408 }
6409
1b8ec87a 6410 chan = ieee80211_get_channel(&rdev->wiphy,
180cdc79
LR		 6411 survey.channel->center_freq);
6412 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6413 survey_idx++;
6414 continue;
6415 }
6416
61fa713c 6417 if (nl80211_send_survey(skb,
15e47304 6418 NETLINK_CB(cb->skb).portid,
61fa713c 6419 cb->nlh->nlmsg_seq, NLM_F_MULTI,
97990a06 6420 wdev->netdev, &survey) < 0)
61fa713c
HS		 6421 goto out;
6422 survey_idx++;
6423 }
6424
6425 out:
97990a06 6426 cb->args[2] = survey_idx;
61fa713c
HS		 6427 res = skb->len;
6428 out_err:
1b8ec87a 6429 nl80211_finish_wdev_dump(rdev);
61fa713c
HS		 6430 return res;
6431}
6432
b23aa676
SO		 6433static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6434{
6435 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6436 NL80211_WPA_VERSION_2));
6437}
6438
636a5d36
JM		 6439static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6440{
4c476991
JB		 6441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6442 struct net_device *dev = info->user_ptr[1];
19957bb3 6443 struct ieee80211_channel *chan;
e39e5b5e
JM		 6444 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6445 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 6446 enum nl80211_auth_type auth_type;
fffd0934 6447 struct key_parse key;
d5cdfacb 6448 bool local_state_change;
636a5d36 6449
f4a11bb0
JB		 6450 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6451 return -EINVAL;
6452
6453 if (!info->attrs[NL80211_ATTR_MAC])
6454 return -EINVAL;
6455
1778092e
JM		 6456 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6457 return -EINVAL;
6458
19957bb3
JB		 6459 if (!info->attrs[NL80211_ATTR_SSID])
6460 return -EINVAL;
6461
6462 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6463 return -EINVAL;
6464
fffd0934
JB		 6465 err = nl80211_parse_key(info, &key);
6466 if (err)
6467 return err;
6468
6469 if (key.idx >= 0) {
e31b8213
JB		 6470 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6471 return -EINVAL;
fffd0934
JB		 6472 if (!key.p.key || !key.p.key_len)
6473 return -EINVAL;
6474 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6475 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6476 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6477 key.p.key_len != WLAN_KEY_LEN_WEP104))
6478 return -EINVAL;
6479 if (key.idx > 4)
6480 return -EINVAL;
6481 } else {
6482 key.p.key_len = 0;
6483 key.p.key = NULL;
6484 }
6485
afea0b7a
JB		 6486 if (key.idx >= 0) {
6487 int i;
6488 bool ok = false;
6489 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6490 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6491 ok = true;
6492 break;
6493 }
6494 }
4c476991
JB		 6495 if (!ok)
6496 return -EINVAL;
afea0b7a
JB		 6497 }
6498
4c476991
JB		 6499 if (!rdev->ops->auth)
6500 return -EOPNOTSUPP;
636a5d36 6501
074ac8df 6502 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6503 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6504 return -EOPNOTSUPP;
eec60b03 6505
19957bb3 6506 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
664834de
JM		 6507 chan = nl80211_get_valid_chan(&rdev->wiphy,
6508 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6509 if (!chan)
4c476991 6510 return -EINVAL;
636a5d36 6511
19957bb3
JB		 6512 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6513 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6514
6515 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6516 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6517 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6518 }
6519
19957bb3 6520 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 6521 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 6522 return -EINVAL;
636a5d36 6523
e39e5b5e
JM		 6524 if (auth_type == NL80211_AUTHTYPE_SAE &&
6525 !info->attrs[NL80211_ATTR_SAE_DATA])
6526 return -EINVAL;
6527
6528 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6529 if (auth_type != NL80211_AUTHTYPE_SAE)
6530 return -EINVAL;
6531 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6532 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6533 /* need to include at least Auth Transaction and Status Code */
6534 if (sae_data_len < 4)
6535 return -EINVAL;
6536 }
6537
d5cdfacb
JM		 6538 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6539
95de817b
JB		 6540 /*
6541 * Since we no longer track auth state, ignore
6542 * requests to only change local state.
6543 */
6544 if (local_state_change)
6545 return 0;
6546
91bf9b26
JB		 6547 wdev_lock(dev->ieee80211_ptr);
6548 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6549 ssid, ssid_len, ie, ie_len,
6550 key.p.key, key.p.key_len, key.idx,
6551 sae_data, sae_data_len);
6552 wdev_unlock(dev->ieee80211_ptr);
6553 return err;
636a5d36
JM		 6554}
6555
c0692b8f
JB		 6556static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6557 struct genl_info *info,
3dc27d25
JB		 6558 struct cfg80211_crypto_settings *settings,
6559 int cipher_limit)
b23aa676 6560{
c0b2bbd8
JB		 6561 memset(settings, 0, sizeof(*settings));
6562
b23aa676
SO		 6563 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6564
c0692b8f
JB		 6565 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6566 u16 proto;
6567 proto = nla_get_u16(
6568 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6569 settings->control_port_ethertype = cpu_to_be16(proto);
6570 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6571 proto != ETH_P_PAE)
6572 return -EINVAL;
6573 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6574 settings->control_port_no_encrypt = true;
6575 } else
6576 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6577
b23aa676
SO		 6578 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6579 void *data;
6580 int len, i;
6581
6582 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6583 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6584 settings->n_ciphers_pairwise = len / sizeof(u32);
6585
6586 if (len % sizeof(u32))
6587 return -EINVAL;
6588
3dc27d25 6589 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 6590 return -EINVAL;
6591
6592 memcpy(settings->ciphers_pairwise, data, len);
6593
6594 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 6595 if (!cfg80211_supported_cipher_suite(
6596 &rdev->wiphy,
b23aa676
SO		 6597 settings->ciphers_pairwise[i]))
6598 return -EINVAL;
6599 }
6600
6601 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6602 settings->cipher_group =
6603 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 6604 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6605 settings->cipher_group))
b23aa676
SO		 6606 return -EINVAL;
6607 }
6608
6609 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6610 settings->wpa_versions =
6611 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6612 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6613 return -EINVAL;
6614 }
6615
6616 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6617 void *data;
6d30240e 6618 int len;
b23aa676
SO		 6619
6620 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6621 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6622 settings->n_akm_suites = len / sizeof(u32);
6623
6624 if (len % sizeof(u32))
6625 return -EINVAL;
6626
1b9ca027
JM		 6627 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6628 return -EINVAL;
6629
b23aa676 6630 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 6631 }
6632
6633 return 0;
6634}
6635
636a5d36
JM		 6636static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6637{
4c476991
JB		 6638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6639 struct net_device *dev = info->user_ptr[1];
f444de05 6640 struct ieee80211_channel *chan;
f62fab73
JB		 6641 struct cfg80211_assoc_request req = {};
6642 const u8 *bssid, *ssid;
6643 int err, ssid_len = 0;
636a5d36 6644
f4a11bb0
JB		 6645 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6646 return -EINVAL;
6647
6648 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 6649 !info->attrs[NL80211_ATTR_SSID] ||
6650 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 6651 return -EINVAL;
6652
4c476991
JB		 6653 if (!rdev->ops->assoc)
6654 return -EOPNOTSUPP;
636a5d36 6655
074ac8df 6656 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6657 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6658 return -EOPNOTSUPP;
eec60b03 6659
19957bb3 6660 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6661
664834de
JM		 6662 chan = nl80211_get_valid_chan(&rdev->wiphy,
6663 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6664 if (!chan)
4c476991 6665 return -EINVAL;
636a5d36 6666
19957bb3
JB		 6667 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6668 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 6669
6670 if (info->attrs[NL80211_ATTR_IE]) {
f62fab73
JB		 6671 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6672 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6673 }
6674
dc6382ce 6675 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 6676 enum nl80211_mfp mfp =
dc6382ce 6677 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 6678 if (mfp == NL80211_MFP_REQUIRED)
f62fab73 6679 req.use_mfp = true;
4c476991
JB		 6680 else if (mfp != NL80211_MFP_NO)
6681 return -EINVAL;
dc6382ce
JM		 6682 }
6683
3e5d7649 6684 if (info->attrs[NL80211_ATTR_PREV_BSSID])
f62fab73 6685 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3e5d7649 6686
7e7c8926 6687 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
f62fab73 6688 req.flags |= ASSOC_REQ_DISABLE_HT;
7e7c8926
BG		 6689
6690 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
f62fab73
JB		 6691 memcpy(&req.ht_capa_mask,
6692 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6693 sizeof(req.ht_capa_mask));
7e7c8926
BG		 6694
6695 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
f62fab73 6696 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7e7c8926 6697 return -EINVAL;
f62fab73
JB		 6698 memcpy(&req.ht_capa,
6699 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6700 sizeof(req.ht_capa));
7e7c8926
BG		 6701 }
6702
ee2aca34 6703 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
f62fab73 6704 req.flags |= ASSOC_REQ_DISABLE_VHT;
ee2aca34
JB		 6705
6706 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
f62fab73
JB		 6707 memcpy(&req.vht_capa_mask,
6708 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6709 sizeof(req.vht_capa_mask));
ee2aca34
JB		 6710
6711 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
f62fab73 6712 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
ee2aca34 6713 return -EINVAL;
f62fab73
JB		 6714 memcpy(&req.vht_capa,
6715 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6716 sizeof(req.vht_capa));
ee2aca34
JB		 6717 }
6718
bab5ab7d
AK		 6719 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6720 if (!(rdev->wiphy.features &
6721 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6722 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6723 return -EINVAL;
6724 req.flags |= ASSOC_REQ_USE_RRM;
6725 }
6726
f62fab73 6727 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
91bf9b26
JB		 6728 if (!err) {
6729 wdev_lock(dev->ieee80211_ptr);
f62fab73
JB		 6730 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6731 ssid, ssid_len, &req);
91bf9b26
JB		 6732 wdev_unlock(dev->ieee80211_ptr);
6733 }
636a5d36 6734
636a5d36
JM		 6735 return err;
6736}
6737
6738static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6739{
4c476991
JB		 6740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6741 struct net_device *dev = info->user_ptr[1];
19957bb3 6742 const u8 *ie = NULL, *bssid;
91bf9b26 6743 int ie_len = 0, err;
19957bb3 6744 u16 reason_code;
d5cdfacb 6745 bool local_state_change;
636a5d36 6746
f4a11bb0
JB		 6747 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6748 return -EINVAL;
6749
6750 if (!info->attrs[NL80211_ATTR_MAC])
6751 return -EINVAL;
6752
6753 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6754 return -EINVAL;
6755
4c476991
JB		 6756 if (!rdev->ops->deauth)
6757 return -EOPNOTSUPP;
636a5d36 6758
074ac8df 6759 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6760 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6761 return -EOPNOTSUPP;
eec60b03 6762
19957bb3 6763 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6764
19957bb3
JB		 6765 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6766 if (reason_code == 0) {
f4a11bb0 6767 /* Reason Code 0 is reserved */
4c476991 6768 return -EINVAL;
255e737e 6769 }
636a5d36
JM		 6770
6771 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6772 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6773 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6774 }
6775
d5cdfacb
JM		 6776 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6777
91bf9b26
JB		 6778 wdev_lock(dev->ieee80211_ptr);
6779 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6780 local_state_change);
6781 wdev_unlock(dev->ieee80211_ptr);
6782 return err;
636a5d36
JM		 6783}
6784
6785static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6786{
4c476991
JB		 6787 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6788 struct net_device *dev = info->user_ptr[1];
19957bb3 6789 const u8 *ie = NULL, *bssid;
91bf9b26 6790 int ie_len = 0, err;
19957bb3 6791 u16 reason_code;
d5cdfacb 6792 bool local_state_change;
636a5d36 6793
f4a11bb0
JB		 6794 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6795 return -EINVAL;
6796
6797 if (!info->attrs[NL80211_ATTR_MAC])
6798 return -EINVAL;
6799
6800 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6801 return -EINVAL;
6802
4c476991
JB		 6803 if (!rdev->ops->disassoc)
6804 return -EOPNOTSUPP;
636a5d36 6805
074ac8df 6806 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6807 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6808 return -EOPNOTSUPP;
eec60b03 6809
19957bb3 6810 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 6811
19957bb3
JB		 6812 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6813 if (reason_code == 0) {
f4a11bb0 6814 /* Reason Code 0 is reserved */
4c476991 6815 return -EINVAL;
255e737e 6816 }
636a5d36
JM		 6817
6818 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 6819 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6820 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 6821 }
6822
d5cdfacb
JM		 6823 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6824
91bf9b26
JB		 6825 wdev_lock(dev->ieee80211_ptr);
6826 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6827 local_state_change);
6828 wdev_unlock(dev->ieee80211_ptr);
6829 return err;
636a5d36
JM		 6830}
6831
dd5b4cc7
FF		 6832static bool
6833nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6834 int mcast_rate[IEEE80211_NUM_BANDS],
6835 int rateval)
6836{
6837 struct wiphy *wiphy = &rdev->wiphy;
6838 bool found = false;
6839 int band, i;
6840
6841 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6842 struct ieee80211_supported_band *sband;
6843
6844 sband = wiphy->bands[band];
6845 if (!sband)
6846 continue;
6847
6848 for (i = 0; i < sband->n_bitrates; i++) {
6849 if (sband->bitrates[i].bitrate == rateval) {
6850 mcast_rate[band] = i + 1;
6851 found = true;
6852 break;
6853 }
6854 }
6855 }
6856
6857 return found;
6858}
6859
04a773ad
JB		 6860static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6861{
4c476991
JB		 6862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6863 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 6864 struct cfg80211_ibss_params ibss;
6865 struct wiphy *wiphy;
fffd0934 6866 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 6867 int err;
6868
8e30bc55
JB		 6869 memset(&ibss, 0, sizeof(ibss));
6870
04a773ad
JB		 6871 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6872 return -EINVAL;
6873
683b6d3b 6874 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 6875 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6876 return -EINVAL;
6877
8e30bc55
JB		 6878 ibss.beacon_interval = 100;
6879
6880 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6881 ibss.beacon_interval =
6882 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6883 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6884 return -EINVAL;
6885 }
6886
4c476991
JB		 6887 if (!rdev->ops->join_ibss)
6888 return -EOPNOTSUPP;
04a773ad 6889
4c476991
JB		 6890 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6891 return -EOPNOTSUPP;
04a773ad 6892
79c97e97 6893 wiphy = &rdev->wiphy;
04a773ad 6894
39193498 6895 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 6896 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 6897
6898 if (!is_valid_ether_addr(ibss.bssid))
6899 return -EINVAL;
6900 }
04a773ad
JB		 6901 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6902 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6903
6904 if (info->attrs[NL80211_ATTR_IE]) {
6905 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6906 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6907 }
6908
683b6d3b
JB		 6909 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6910 if (err)
6911 return err;
04a773ad 6912
174e0cd2
IP		 6913 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6914 NL80211_IFTYPE_ADHOC))
54858ee5
AS		 6915 return -EINVAL;
6916
2f301ab2 6917 switch (ibss.chandef.width) {
bf372645
SW		 6918 case NL80211_CHAN_WIDTH_5:
6919 case NL80211_CHAN_WIDTH_10:
2f301ab2
SW		 6920 case NL80211_CHAN_WIDTH_20_NOHT:
6921 break;
6922 case NL80211_CHAN_WIDTH_20:
6923 case NL80211_CHAN_WIDTH_40:
6924 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6925 break;
6926 default:
c04d6150 6927 return -EINVAL;
2f301ab2 6928 }
db9c64cf 6929
04a773ad 6930 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 6931 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6932
fbd2c8dc
TP		 6933 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6934 u8 *rates =
6935 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6936 int n_rates =
6937 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6938 struct ieee80211_supported_band *sband =
683b6d3b 6939 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 6940
34850ab2
JB		 6941 err = ieee80211_get_ratemask(sband, rates, n_rates,
6942 &ibss.basic_rates);
6943 if (err)
6944 return err;
fbd2c8dc 6945 }
dd5b4cc7 6946
803768f5
SW		 6947 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6948 memcpy(&ibss.ht_capa_mask,
6949 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6950 sizeof(ibss.ht_capa_mask));
6951
6952 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6953 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6954 return -EINVAL;
6955 memcpy(&ibss.ht_capa,
6956 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6957 sizeof(ibss.ht_capa));
6958 }
6959
dd5b4cc7
FF		 6960 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6961 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6962 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6963 return -EINVAL;
fbd2c8dc 6964
4c476991 6965 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 6966 bool no_ht = false;
6967
4c476991 6968 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 6969 info->attrs[NL80211_ATTR_KEYS],
6970 &no_ht);
4c476991
JB		 6971 if (IS_ERR(connkeys))
6972 return PTR_ERR(connkeys);
de7044ee 6973
3d9d1d66
JB		 6974 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6975 no_ht) {
de7044ee
SM		 6976 kfree(connkeys);
6977 return -EINVAL;
6978 }
4c476991 6979 }
04a773ad 6980
267335d6
AQ		 6981 ibss.control_port =
6982 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6983
5336fa88
SW		 6984 ibss.userspace_handles_dfs =
6985 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6986
4c476991 6987 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934 6988 if (err)
b47f610b 6989 kzfree(connkeys);
04a773ad
JB		 6990 return err;
6991}
6992
6993static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6994{
4c476991
JB		 6995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6996 struct net_device *dev = info->user_ptr[1];
04a773ad 6997
4c476991
JB		 6998 if (!rdev->ops->leave_ibss)
6999 return -EOPNOTSUPP;
04a773ad 7000
4c476991
JB		 7001 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7002 return -EOPNOTSUPP;
04a773ad 7003
4c476991 7004 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 7005}
7006
f4e583c8
AQ		 7007static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7008{
7009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7010 struct net_device *dev = info->user_ptr[1];
7011 int mcast_rate[IEEE80211_NUM_BANDS];
7012 u32 nla_rate;
7013 int err;
7014
7015 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7016 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7017 return -EOPNOTSUPP;
7018
7019 if (!rdev->ops->set_mcast_rate)
7020 return -EOPNOTSUPP;
7021
7022 memset(mcast_rate, 0, sizeof(mcast_rate));
7023
7024 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7025 return -EINVAL;
7026
7027 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7028 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7029 return -EINVAL;
7030
7031 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7032
7033 return err;
7034}
7035
ad7e718c
JB		 7036static struct sk_buff *
7037__cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7038 int approxlen, u32 portid, u32 seq,
7039 enum nl80211_commands cmd,
567ffc35
JB		 7040 enum nl80211_attrs attr,
7041 const struct nl80211_vendor_cmd_info *info,
7042 gfp_t gfp)
ad7e718c
JB		 7043{
7044 struct sk_buff *skb;
7045 void *hdr;
7046 struct nlattr *data;
7047
7048 skb = nlmsg_new(approxlen + 100, gfp);
7049 if (!skb)
7050 return NULL;
7051
7052 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7053 if (!hdr) {
7054 kfree_skb(skb);
7055 return NULL;
7056 }
7057
7058 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7059 goto nla_put_failure;
567ffc35
JB		 7060
7061 if (info) {
7062 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7063 info->vendor_id))
7064 goto nla_put_failure;
7065 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7066 info->subcmd))
7067 goto nla_put_failure;
7068 }
7069
ad7e718c
JB		 7070 data = nla_nest_start(skb, attr);
7071
7072 ((void **)skb->cb)[0] = rdev;
7073 ((void **)skb->cb)[1] = hdr;
7074 ((void **)skb->cb)[2] = data;
7075
7076 return skb;
7077
7078 nla_put_failure:
7079 kfree_skb(skb);
7080 return NULL;
7081}
f4e583c8 7082
e03ad6ea
JB		 7083struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7084 enum nl80211_commands cmd,
7085 enum nl80211_attrs attr,
7086 int vendor_event_idx,
7087 int approxlen, gfp_t gfp)
7088{
f26cbf40 7089 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
e03ad6ea
JB		 7090 const struct nl80211_vendor_cmd_info *info;
7091
7092 switch (cmd) {
7093 case NL80211_CMD_TESTMODE:
7094 if (WARN_ON(vendor_event_idx != -1))
7095 return NULL;
7096 info = NULL;
7097 break;
7098 case NL80211_CMD_VENDOR:
7099 if (WARN_ON(vendor_event_idx < 0 ||
7100 vendor_event_idx >= wiphy->n_vendor_events))
7101 return NULL;
7102 info = &wiphy->vendor_events[vendor_event_idx];
7103 break;
7104 default:
7105 WARN_ON(1);
7106 return NULL;
7107 }
7108
7109 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7110 cmd, attr, info, gfp);
7111}
7112EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7113
7114void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7115{
7116 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7117 void *hdr = ((void **)skb->cb)[1];
7118 struct nlattr *data = ((void **)skb->cb)[2];
7119 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7120
bd8c78e7
JB		 7121 /* clear CB data for netlink core to own from now on */
7122 memset(skb->cb, 0, sizeof(skb->cb));
7123
e03ad6ea
JB		 7124 nla_nest_end(skb, data);
7125 genlmsg_end(skb, hdr);
7126
7127 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7128 mcgrp = NL80211_MCGRP_VENDOR;
7129
7130 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7131 mcgrp, gfp);
7132}
7133EXPORT_SYMBOL(__cfg80211_send_event_skb);
7134
aff89a9b 7135#ifdef CONFIG_NL80211_TESTMODE
aff89a9b
JB		 7136static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7137{
4c476991 7138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fc73f11f
DS		 7139 struct wireless_dev *wdev =
7140 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
aff89a9b
JB		 7141 int err;
7142
fc73f11f
DS		 7143 if (!rdev->ops->testmode_cmd)
7144 return -EOPNOTSUPP;
7145
7146 if (IS_ERR(wdev)) {
7147 err = PTR_ERR(wdev);
7148 if (err != -EINVAL)
7149 return err;
7150 wdev = NULL;
7151 } else if (wdev->wiphy != &rdev->wiphy) {
7152 return -EINVAL;
7153 }
7154
aff89a9b
JB		 7155 if (!info->attrs[NL80211_ATTR_TESTDATA])
7156 return -EINVAL;
7157
ad7e718c 7158 rdev->cur_cmd_info = info;
fc73f11f 7159 err = rdev_testmode_cmd(rdev, wdev,
aff89a9b
JB		 7160 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7161 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
ad7e718c 7162 rdev->cur_cmd_info = NULL;
aff89a9b 7163
aff89a9b
JB		 7164 return err;
7165}
7166
71063f0e
WYG		 7167static int nl80211_testmode_dump(struct sk_buff *skb,
7168 struct netlink_callback *cb)
7169{
00918d33 7170 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 7171 int err;
7172 long phy_idx;
7173 void *data = NULL;
7174 int data_len = 0;
7175
5fe231e8
JB		 7176 rtnl_lock();
7177
71063f0e
WYG		 7178 if (cb->args[0]) {
7179 /*
7180 * 0 is a valid index, but not valid for args[0],
7181 * so we need to offset by 1.
7182 */
7183 phy_idx = cb->args[0] - 1;
7184 } else {
7185 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7186 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7187 nl80211_policy);
7188 if (err)
5fe231e8 7189 goto out_err;
00918d33 7190
2bd7e35d
JB		 7191 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7192 nl80211_fam.attrbuf);
7193 if (IS_ERR(rdev)) {
5fe231e8
JB		 7194 err = PTR_ERR(rdev);
7195 goto out_err;
00918d33 7196 }
2bd7e35d
JB		 7197 phy_idx = rdev->wiphy_idx;
7198 rdev = NULL;
2bd7e35d 7199
71063f0e
WYG		 7200 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7201 cb->args[1] =
7202 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7203 }
7204
7205 if (cb->args[1]) {
7206 data = nla_data((void *)cb->args[1]);
7207 data_len = nla_len((void *)cb->args[1]);
7208 }
7209
00918d33
JB		 7210 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7211 if (!rdev) {
5fe231e8
JB		 7212 err = -ENOENT;
7213 goto out_err;
71063f0e 7214 }
71063f0e 7215
00918d33 7216 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 7217 err = -EOPNOTSUPP;
7218 goto out_err;
7219 }
7220
7221 while (1) {
15e47304 7222 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 7223 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7224 NL80211_CMD_TESTMODE);
7225 struct nlattr *tmdata;
7226
cb35fba3
DC		 7227 if (!hdr)
7228 break;
7229
9360ffd1 7230 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 7231 genlmsg_cancel(skb, hdr);
7232 break;
7233 }
7234
7235 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7236 if (!tmdata) {
7237 genlmsg_cancel(skb, hdr);
7238 break;
7239 }
e35e4d28 7240 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 7241 nla_nest_end(skb, tmdata);
7242
7243 if (err == -ENOBUFS || err == -ENOENT) {
7244 genlmsg_cancel(skb, hdr);
7245 break;
7246 } else if (err) {
7247 genlmsg_cancel(skb, hdr);
7248 goto out_err;
7249 }
7250
7251 genlmsg_end(skb, hdr);
7252 }
7253
7254 err = skb->len;
7255 /* see above */
7256 cb->args[0] = phy_idx + 1;
7257 out_err:
5fe231e8 7258 rtnl_unlock();
71063f0e
WYG		 7259 return err;
7260}
aff89a9b
JB		 7261#endif
7262
b23aa676
SO		 7263static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7264{
4c476991
JB		 7265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7266 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 7267 struct cfg80211_connect_params connect;
7268 struct wiphy *wiphy;
fffd0934 7269 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 7270 int err;
7271
7272 memset(&connect, 0, sizeof(connect));
7273
7274 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7275 return -EINVAL;
7276
7277 if (!info->attrs[NL80211_ATTR_SSID] ||
7278 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7279 return -EINVAL;
7280
7281 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7282 connect.auth_type =
7283 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 7284 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7285 NL80211_CMD_CONNECT))
b23aa676
SO		 7286 return -EINVAL;
7287 } else
7288 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7289
7290 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7291
c0692b8f 7292 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 7293 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 7294 if (err)
7295 return err;
b23aa676 7296
074ac8df 7297 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7298 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7299 return -EOPNOTSUPP;
b23aa676 7300
79c97e97 7301 wiphy = &rdev->wiphy;
b23aa676 7302
4486ea98
BS		 7303 connect.bg_scan_period = -1;
7304 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7305 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7306 connect.bg_scan_period =
7307 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7308 }
7309
b23aa676
SO		 7310 if (info->attrs[NL80211_ATTR_MAC])
7311 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1df4a510
JM		 7312 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7313 connect.bssid_hint =
7314 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
b23aa676
SO		 7315 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7316 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7317
7318 if (info->attrs[NL80211_ATTR_IE]) {
7319 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7320 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7321 }
7322
cee00a95
JM		 7323 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7324 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7325 if (connect.mfp != NL80211_MFP_REQUIRED &&
7326 connect.mfp != NL80211_MFP_NO)
7327 return -EINVAL;
7328 } else {
7329 connect.mfp = NL80211_MFP_NO;
7330 }
7331
b23aa676 7332 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
664834de
JM		 7333 connect.channel = nl80211_get_valid_chan(
7334 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7335 if (!connect.channel)
1df4a510
JM		 7336 return -EINVAL;
7337 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
664834de
JM		 7338 connect.channel_hint = nl80211_get_valid_chan(
7339 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7340 if (!connect.channel_hint)
4c476991 7341 return -EINVAL;
b23aa676
SO		 7342 }
7343
fffd0934
JB		 7344 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7345 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 7346 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 7347 if (IS_ERR(connkeys))
7348 return PTR_ERR(connkeys);
fffd0934
JB		 7349 }
7350
7e7c8926
BG		 7351 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7352 connect.flags |= ASSOC_REQ_DISABLE_HT;
7353
7354 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7355 memcpy(&connect.ht_capa_mask,
7356 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7357 sizeof(connect.ht_capa_mask));
7358
7359 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e 7360 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
b47f610b 7361 kzfree(connkeys);
7e7c8926 7362 return -EINVAL;
b4e4f47e 7363 }
7e7c8926
BG		 7364 memcpy(&connect.ht_capa,
7365 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7366 sizeof(connect.ht_capa));
7367 }
7368
ee2aca34
JB		 7369 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7370 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7371
7372 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7373 memcpy(&connect.vht_capa_mask,
7374 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7375 sizeof(connect.vht_capa_mask));
7376
7377 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7378 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
b47f610b 7379 kzfree(connkeys);
ee2aca34
JB		 7380 return -EINVAL;
7381 }
7382 memcpy(&connect.vht_capa,
7383 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7384 sizeof(connect.vht_capa));
7385 }
7386
bab5ab7d
AK		 7387 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7388 if (!(rdev->wiphy.features &
7389 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7390 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7391 return -EINVAL;
7392 connect.flags |= ASSOC_REQ_USE_RRM;
7393 }
7394
83739b03
JB		 7395 wdev_lock(dev->ieee80211_ptr);
7396 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7397 wdev_unlock(dev->ieee80211_ptr);
fffd0934 7398 if (err)
b47f610b 7399 kzfree(connkeys);
b23aa676
SO		 7400 return err;
7401}
7402
7403static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7404{
4c476991
JB		 7405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7406 struct net_device *dev = info->user_ptr[1];
b23aa676 7407 u16 reason;
83739b03 7408 int ret;
b23aa676
SO		 7409
7410 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7411 reason = WLAN_REASON_DEAUTH_LEAVING;
7412 else
7413 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7414
7415 if (reason == 0)
7416 return -EINVAL;
7417
074ac8df 7418 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7419 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7420 return -EOPNOTSUPP;
b23aa676 7421
83739b03
JB		 7422 wdev_lock(dev->ieee80211_ptr);
7423 ret = cfg80211_disconnect(rdev, dev, reason, true);
7424 wdev_unlock(dev->ieee80211_ptr);
7425 return ret;
b23aa676
SO		 7426}
7427
463d0183
JB		 7428static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7429{
4c476991 7430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 7431 struct net *net;
7432 int err;
7433 u32 pid;
7434
7435 if (!info->attrs[NL80211_ATTR_PID])
7436 return -EINVAL;
7437
7438 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7439
463d0183 7440 net = get_net_ns_by_pid(pid);
4c476991
JB		 7441 if (IS_ERR(net))
7442 return PTR_ERR(net);
463d0183
JB		 7443
7444 err = 0;
7445
7446 /* check if anything to do */
4c476991
JB		 7447 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7448 err = cfg80211_switch_netns(rdev, net);
463d0183 7449
463d0183 7450 put_net(net);
463d0183
JB		 7451 return err;
7452}
7453
67fbb16b
SO		 7454static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7455{
4c476991 7456 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 7457 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7458 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 7459 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 7460 struct cfg80211_pmksa pmksa;
7461
7462 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7463
7464 if (!info->attrs[NL80211_ATTR_MAC])
7465 return -EINVAL;
7466
7467 if (!info->attrs[NL80211_ATTR_PMKID])
7468 return -EINVAL;
7469
67fbb16b
SO		 7470 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7471 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7472
074ac8df 7473 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7474 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7475 return -EOPNOTSUPP;
67fbb16b
SO		 7476
7477 switch (info->genlhdr->cmd) {
7478 case NL80211_CMD_SET_PMKSA:
7479 rdev_ops = rdev->ops->set_pmksa;
7480 break;
7481 case NL80211_CMD_DEL_PMKSA:
7482 rdev_ops = rdev->ops->del_pmksa;
7483 break;
7484 default:
7485 WARN_ON(1);
7486 break;
7487 }
7488
4c476991
JB		 7489 if (!rdev_ops)
7490 return -EOPNOTSUPP;
67fbb16b 7491
4c476991 7492 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 7493}
7494
7495static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7496{
4c476991
JB		 7497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7498 struct net_device *dev = info->user_ptr[1];
67fbb16b 7499
074ac8df 7500 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 7501 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7502 return -EOPNOTSUPP;
67fbb16b 7503
4c476991
JB		 7504 if (!rdev->ops->flush_pmksa)
7505 return -EOPNOTSUPP;
67fbb16b 7506
e35e4d28 7507 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 7508}
7509
109086ce
AN		 7510static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7511{
7512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7513 struct net_device *dev = info->user_ptr[1];
7514 u8 action_code, dialog_token;
df942e7b 7515 u32 peer_capability = 0;
109086ce
AN		 7516 u16 status_code;
7517 u8 *peer;
31fa97c5 7518 bool initiator;
109086ce
AN		 7519
7520 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7521 !rdev->ops->tdls_mgmt)
7522 return -EOPNOTSUPP;
7523
7524 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7525 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7526 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7527 !info->attrs[NL80211_ATTR_IE] ||
7528 !info->attrs[NL80211_ATTR_MAC])
7529 return -EINVAL;
7530
7531 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7532 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7533 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7534 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
31fa97c5 7535 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
df942e7b
SDU		 7536 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7537 peer_capability =
7538 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
109086ce 7539
e35e4d28 7540 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
df942e7b 7541 dialog_token, status_code, peer_capability,
31fa97c5 7542 initiator,
e35e4d28
HG		 7543 nla_data(info->attrs[NL80211_ATTR_IE]),
7544 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 7545}
7546
7547static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7548{
7549 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7550 struct net_device *dev = info->user_ptr[1];
7551 enum nl80211_tdls_operation operation;
7552 u8 *peer;
7553
7554 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7555 !rdev->ops->tdls_oper)
7556 return -EOPNOTSUPP;
7557
7558 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7559 !info->attrs[NL80211_ATTR_MAC])
7560 return -EINVAL;
7561
7562 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7563 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7564
e35e4d28 7565 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 7566}
7567
9588bbd5
JM		 7568static int nl80211_remain_on_channel(struct sk_buff *skb,
7569 struct genl_info *info)
7570{
4c476991 7571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7572 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7573 struct cfg80211_chan_def chandef;
9588bbd5
JM		 7574 struct sk_buff *msg;
7575 void *hdr;
7576 u64 cookie;
683b6d3b 7577 u32 duration;
9588bbd5
JM		 7578 int err;
7579
7580 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7581 !info->attrs[NL80211_ATTR_DURATION])
7582 return -EINVAL;
7583
7584 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7585
ebf348fc
JB		 7586 if (!rdev->ops->remain_on_channel ||
7587 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7588 return -EOPNOTSUPP;
7589
9588bbd5 7590 /*
ebf348fc
JB		 7591 * We should be on that channel for at least a minimum amount of
7592 * time (10ms) but no longer than the driver supports.
9588bbd5 7593 */
ebf348fc 7594 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 7595 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 7596 return -EINVAL;
7597
683b6d3b
JB		 7598 err = nl80211_parse_chandef(rdev, info, &chandef);
7599 if (err)
7600 return err;
9588bbd5
JM		 7601
7602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 7603 if (!msg)
7604 return -ENOMEM;
9588bbd5 7605
15e47304 7606 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5 7607 NL80211_CMD_REMAIN_ON_CHANNEL);
cb35fba3
DC		 7608 if (!hdr) {
7609 err = -ENOBUFS;
9588bbd5
JM		 7610 goto free_msg;
7611 }
7612
683b6d3b
JB		 7613 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7614 duration, &cookie);
9588bbd5
JM		 7615
7616 if (err)
7617 goto free_msg;
7618
9360ffd1
DM		 7619 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7620 goto nla_put_failure;
9588bbd5
JM		 7621
7622 genlmsg_end(msg, hdr);
4c476991
JB		 7623
7624 return genlmsg_reply(msg, info);
9588bbd5
JM		 7625
7626 nla_put_failure:
7627 err = -ENOBUFS;
7628 free_msg:
7629 nlmsg_free(msg);
9588bbd5
JM		 7630 return err;
7631}
7632
7633static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7634 struct genl_info *info)
7635{
4c476991 7636 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7637 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 7638 u64 cookie;
9588bbd5
JM		 7639
7640 if (!info->attrs[NL80211_ATTR_COOKIE])
7641 return -EINVAL;
7642
4c476991
JB		 7643 if (!rdev->ops->cancel_remain_on_channel)
7644 return -EOPNOTSUPP;
9588bbd5 7645
9588bbd5
JM		 7646 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7647
e35e4d28 7648 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 7649}
7650
13ae75b1
JM		 7651static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7652 u8 *rates, u8 rates_len)
7653{
7654 u8 i;
7655 u32 mask = 0;
7656
7657 for (i = 0; i < rates_len; i++) {
7658 int rate = (rates[i] & 0x7f) * 5;
7659 int ridx;
7660 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7661 struct ieee80211_rate *srate =
7662 &sband->bitrates[ridx];
7663 if (rate == srate->bitrate) {
7664 mask |= 1 << ridx;
7665 break;
7666 }
7667 }
7668 if (ridx == sband->n_bitrates)
7669 return 0; /* rate not found */
7670 }
7671
7672 return mask;
7673}
7674
24db78c0
SW		 7675static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7676 u8 *rates, u8 rates_len,
7677 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7678{
7679 u8 i;
7680
7681 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7682
7683 for (i = 0; i < rates_len; i++) {
7684 int ridx, rbit;
7685
7686 ridx = rates[i] / 8;
7687 rbit = BIT(rates[i] % 8);
7688
7689 /* check validity */
910570b5 7690 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 7691 return false;
7692
7693 /* check availability */
7694 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7695 mcs[ridx] |= rbit;
7696 else
7697 return false;
7698 }
7699
7700 return true;
7701}
7702
204e35a9
JD		 7703static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7704{
7705 u16 mcs_mask = 0;
7706
7707 switch (vht_mcs_map) {
7708 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7709 break;
7710 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7711 mcs_mask = 0x00FF;
7712 break;
7713 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7714 mcs_mask = 0x01FF;
7715 break;
7716 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7717 mcs_mask = 0x03FF;
7718 break;
7719 default:
7720 break;
7721 }
7722
7723 return mcs_mask;
7724}
7725
7726static void vht_build_mcs_mask(u16 vht_mcs_map,
7727 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7728{
7729 u8 nss;
7730
7731 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7732 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7733 vht_mcs_map >>= 2;
7734 }
7735}
7736
7737static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7738 struct nl80211_txrate_vht *txrate,
7739 u16 mcs[NL80211_VHT_NSS_MAX])
7740{
7741 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7742 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7743 u8 i;
7744
7745 if (!sband->vht_cap.vht_supported)
7746 return false;
7747
7748 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7749
7750 /* Build vht_mcs_mask from VHT capabilities */
7751 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7752
7753 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7754 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7755 mcs[i] = txrate->mcs[i];
7756 else
7757 return false;
7758 }
7759
7760 return true;
7761}
7762
b54452b0 7763static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 7764 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7765 .len = NL80211_MAX_SUPP_RATES },
d1e33e65
JD		 7766 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7767 .len = NL80211_MAX_SUPP_HT_RATES },
204e35a9 7768 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
0b9323f6 7769 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
13ae75b1
JM		 7770};
7771
7772static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7773 struct genl_info *info)
7774{
7775 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 7776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 7777 struct cfg80211_bitrate_mask mask;
4c476991
JB		 7778 int rem, i;
7779 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 7780 struct nlattr *tx_rates;
7781 struct ieee80211_supported_band *sband;
204e35a9 7782 u16 vht_tx_mcs_map;
13ae75b1 7783
4c476991
JB		 7784 if (!rdev->ops->set_bitrate_mask)
7785 return -EOPNOTSUPP;
13ae75b1
JM		 7786
7787 memset(&mask, 0, sizeof(mask));
7788 /* Default to all rates enabled */
7789 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7790 sband = rdev->wiphy.bands[i];
7869303b
JD		 7791
7792 if (!sband)
7793 continue;
7794
7795 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
d1e33e65 7796 memcpy(mask.control[i].ht_mcs,
7869303b 7797 sband->ht_cap.mcs.rx_mask,
d1e33e65 7798 sizeof(mask.control[i].ht_mcs));
204e35a9
JD		 7799
7800 if (!sband->vht_cap.vht_supported)
7801 continue;
7802
7803 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7804 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
13ae75b1
JM		 7805 }
7806
b9243ab0
JD		 7807 /* if no rates are given set it back to the defaults */
7808 if (!info->attrs[NL80211_ATTR_TX_RATES])
7809 goto out;
7810
13ae75b1
JM		 7811 /*
7812 * The nested attribute uses enum nl80211_band as the index. This maps
7813 * directly to the enum ieee80211_band values used in cfg80211.
7814 */
24db78c0 7815 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
ae811e21 7816 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
13ae75b1 7817 enum ieee80211_band band = nla_type(tx_rates);
ae811e21
JB		 7818 int err;
7819
4c476991
JB		 7820 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7821 return -EINVAL;
13ae75b1 7822 sband = rdev->wiphy.bands[band];
4c476991
JB		 7823 if (sband == NULL)
7824 return -EINVAL;
ae811e21
JB		 7825 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7826 nla_len(tx_rates), nl80211_txattr_policy);
7827 if (err)
7828 return err;
13ae75b1
JM		 7829 if (tb[NL80211_TXRATE_LEGACY]) {
7830 mask.control[band].legacy = rateset_to_mask(
7831 sband,
7832 nla_data(tb[NL80211_TXRATE_LEGACY]),
7833 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 7834 if ((mask.control[band].legacy == 0) &&
7835 nla_len(tb[NL80211_TXRATE_LEGACY]))
7836 return -EINVAL;
24db78c0 7837 }
d1e33e65 7838 if (tb[NL80211_TXRATE_HT]) {
24db78c0
SW		 7839 if (!ht_rateset_to_mask(
7840 sband,
d1e33e65
JD		 7841 nla_data(tb[NL80211_TXRATE_HT]),
7842 nla_len(tb[NL80211_TXRATE_HT]),
7843 mask.control[band].ht_mcs))
24db78c0
SW		 7844 return -EINVAL;
7845 }
204e35a9
JD		 7846 if (tb[NL80211_TXRATE_VHT]) {
7847 if (!vht_set_mcs_mask(
7848 sband,
7849 nla_data(tb[NL80211_TXRATE_VHT]),
7850 mask.control[band].vht_mcs))
7851 return -EINVAL;
7852 }
0b9323f6
JD		 7853 if (tb[NL80211_TXRATE_GI]) {
7854 mask.control[band].gi =
7855 nla_get_u8(tb[NL80211_TXRATE_GI]);
7856 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7857 return -EINVAL;
7858 }
24db78c0
SW		 7859
7860 if (mask.control[band].legacy == 0) {
204e35a9
JD		 7861 /* don't allow empty legacy rates if HT or VHT
7862 * are not even supported.
7863 */
7864 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7865 rdev->wiphy.bands[band]->vht_cap.vht_supported))
24db78c0
SW		 7866 return -EINVAL;
7867
7868 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
d1e33e65 7869 if (mask.control[band].ht_mcs[i])
204e35a9
JD		 7870 goto out;
7871
7872 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7873 if (mask.control[band].vht_mcs[i])
7874 goto out;
24db78c0
SW		 7875
7876 /* legacy and mcs rates may not be both empty */
204e35a9 7877 return -EINVAL;
13ae75b1
JM		 7878 }
7879 }
7880
b9243ab0 7881out:
e35e4d28 7882 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 7883}
7884
2e161f78 7885static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7886{
4c476991 7887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7888 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 7889 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 7890
7891 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7892 return -EINVAL;
7893
2e161f78
JB		 7894 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7895 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 7896
71bbc994
JB		 7897 switch (wdev->iftype) {
7898 case NL80211_IFTYPE_STATION:
7899 case NL80211_IFTYPE_ADHOC:
7900 case NL80211_IFTYPE_P2P_CLIENT:
7901 case NL80211_IFTYPE_AP:
7902 case NL80211_IFTYPE_AP_VLAN:
7903 case NL80211_IFTYPE_MESH_POINT:
7904 case NL80211_IFTYPE_P2P_GO:
98104fde 7905 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 7906 break;
7907 default:
4c476991 7908 return -EOPNOTSUPP;
71bbc994 7909 }
026331c4
JM		 7910
7911 /* not much point in registering if we can't reply */
4c476991
JB		 7912 if (!rdev->ops->mgmt_tx)
7913 return -EOPNOTSUPP;
026331c4 7914
15e47304 7915 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 7916 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7917 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 7918}
7919
2e161f78 7920static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 7921{
4c476991 7922 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 7923 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 7924 struct cfg80211_chan_def chandef;
026331c4 7925 int err;
d64d373f 7926 void *hdr = NULL;
026331c4 7927 u64 cookie;
e247bd90 7928 struct sk_buff *msg = NULL;
b176e629
AO		 7929 struct cfg80211_mgmt_tx_params params = {
7930 .dont_wait_for_ack =
7931 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7932 };
026331c4 7933
683b6d3b 7934 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 7935 return -EINVAL;
7936
4c476991
JB		 7937 if (!rdev->ops->mgmt_tx)
7938 return -EOPNOTSUPP;
026331c4 7939
71bbc994 7940 switch (wdev->iftype) {
ea141b75
AQ		 7941 case NL80211_IFTYPE_P2P_DEVICE:
7942 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7943 return -EINVAL;
71bbc994
JB		 7944 case NL80211_IFTYPE_STATION:
7945 case NL80211_IFTYPE_ADHOC:
7946 case NL80211_IFTYPE_P2P_CLIENT:
7947 case NL80211_IFTYPE_AP:
7948 case NL80211_IFTYPE_AP_VLAN:
7949 case NL80211_IFTYPE_MESH_POINT:
7950 case NL80211_IFTYPE_P2P_GO:
7951 break;
7952 default:
4c476991 7953 return -EOPNOTSUPP;
71bbc994 7954 }
026331c4 7955
f7ca38df 7956 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 7957 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df 7958 return -EINVAL;
b176e629 7959 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 7960
7961 /*
7962 * We should wait on the channel for at least a minimum amount
7963 * of time (10ms) but no longer than the driver supports.
7964 */
b176e629
AO		 7965 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7966 params.wait > rdev->wiphy.max_remain_on_channel_duration)
ebf348fc
JB		 7967 return -EINVAL;
7968
f7ca38df
JB		 7969 }
7970
b176e629 7971 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
f7ca38df 7972
b176e629 7973 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7c4ef712
JB		 7974 return -EINVAL;
7975
b176e629 7976 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
e9f935e3 7977
ea141b75
AQ		 7978 /* get the channel if any has been specified, otherwise pass NULL to
7979 * the driver. The latter will use the current one
7980 */
7981 chandef.chan = NULL;
7982 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7983 err = nl80211_parse_chandef(rdev, info, &chandef);
7984 if (err)
7985 return err;
7986 }
7987
b176e629 7988 if (!chandef.chan && params.offchan)
ea141b75 7989 return -EINVAL;
026331c4 7990
34d22ce2
AO		 7991 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7992 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7993
7994 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7995 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7996 int i;
7997
7998 if (len % sizeof(u16))
7999 return -EINVAL;
8000
8001 params.n_csa_offsets = len / sizeof(u16);
8002 params.csa_offsets =
8003 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8004
8005 /* check that all the offsets fit the frame */
8006 for (i = 0; i < params.n_csa_offsets; i++) {
8007 if (params.csa_offsets[i] >= params.len)
8008 return -EINVAL;
8009 }
8010 }
8011
b176e629 8012 if (!params.dont_wait_for_ack) {
e247bd90
JB		 8013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8014 if (!msg)
8015 return -ENOMEM;
026331c4 8016
15e47304 8017 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 8018 NL80211_CMD_FRAME);
cb35fba3
DC		 8019 if (!hdr) {
8020 err = -ENOBUFS;
e247bd90
JB		 8021 goto free_msg;
8022 }
026331c4 8023 }
e247bd90 8024
b176e629
AO		 8025 params.chan = chandef.chan;
8026 err = cfg80211_mlme_mgmt_tx(rdev, wdev, &params, &cookie);
026331c4
JM		 8027 if (err)
8028 goto free_msg;
8029
e247bd90 8030 if (msg) {
9360ffd1
DM		 8031 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8032 goto nla_put_failure;
026331c4 8033
e247bd90
JB		 8034 genlmsg_end(msg, hdr);
8035 return genlmsg_reply(msg, info);
8036 }
8037
8038 return 0;
026331c4
JM		 8039
8040 nla_put_failure:
8041 err = -ENOBUFS;
8042 free_msg:
8043 nlmsg_free(msg);
026331c4
JM		 8044 return err;
8045}
8046
f7ca38df
JB		 8047static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8048{
8049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 8050 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 8051 u64 cookie;
8052
8053 if (!info->attrs[NL80211_ATTR_COOKIE])
8054 return -EINVAL;
8055
8056 if (!rdev->ops->mgmt_tx_cancel_wait)
8057 return -EOPNOTSUPP;
8058
71bbc994
JB		 8059 switch (wdev->iftype) {
8060 case NL80211_IFTYPE_STATION:
8061 case NL80211_IFTYPE_ADHOC:
8062 case NL80211_IFTYPE_P2P_CLIENT:
8063 case NL80211_IFTYPE_AP:
8064 case NL80211_IFTYPE_AP_VLAN:
8065 case NL80211_IFTYPE_P2P_GO:
98104fde 8066 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 8067 break;
8068 default:
f7ca38df 8069 return -EOPNOTSUPP;
71bbc994 8070 }
f7ca38df
JB		 8071
8072 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8073
e35e4d28 8074 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 8075}
8076
ffb9eb3d
KV		 8077static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8078{
4c476991 8079 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 8080 struct wireless_dev *wdev;
4c476991 8081 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8082 u8 ps_state;
8083 bool state;
8084 int err;
8085
4c476991
JB		 8086 if (!info->attrs[NL80211_ATTR_PS_STATE])
8087 return -EINVAL;
ffb9eb3d
KV		 8088
8089 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8090
4c476991
JB		 8091 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8092 return -EINVAL;
ffb9eb3d
KV		 8093
8094 wdev = dev->ieee80211_ptr;
8095
4c476991
JB		 8096 if (!rdev->ops->set_power_mgmt)
8097 return -EOPNOTSUPP;
ffb9eb3d
KV		 8098
8099 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8100
8101 if (state == wdev->ps)
4c476991 8102 return 0;
ffb9eb3d 8103
e35e4d28 8104 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 8105 if (!err)
8106 wdev->ps = state;
ffb9eb3d
KV		 8107 return err;
8108}
8109
8110static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8111{
4c476991 8112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 8113 enum nl80211_ps_state ps_state;
8114 struct wireless_dev *wdev;
4c476991 8115 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 8116 struct sk_buff *msg;
8117 void *hdr;
8118 int err;
8119
ffb9eb3d
KV		 8120 wdev = dev->ieee80211_ptr;
8121
4c476991
JB		 8122 if (!rdev->ops->set_power_mgmt)
8123 return -EOPNOTSUPP;
ffb9eb3d
KV		 8124
8125 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 8126 if (!msg)
8127 return -ENOMEM;
ffb9eb3d 8128
15e47304 8129 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 8130 NL80211_CMD_GET_POWER_SAVE);
8131 if (!hdr) {
4c476991 8132 err = -ENOBUFS;
ffb9eb3d
KV		 8133 goto free_msg;
8134 }
8135
8136 if (wdev->ps)
8137 ps_state = NL80211_PS_ENABLED;
8138 else
8139 ps_state = NL80211_PS_DISABLED;
8140
9360ffd1
DM		 8141 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8142 goto nla_put_failure;
ffb9eb3d
KV		 8143
8144 genlmsg_end(msg, hdr);
4c476991 8145 return genlmsg_reply(msg, info);
ffb9eb3d 8146
4c476991 8147 nla_put_failure:
ffb9eb3d 8148 err = -ENOBUFS;
4c476991 8149 free_msg:
ffb9eb3d 8150 nlmsg_free(msg);
ffb9eb3d
KV		 8151 return err;
8152}
8153
94e860f1
JB		 8154static const struct nla_policy
8155nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
d6dc1a38
JO		 8156 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8157 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8158 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 8159 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8160 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8161 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 8162};
8163
84f10708 8164static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 8165 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 8166{
8167 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84f10708 8168 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8169 struct wireless_dev *wdev = dev->ieee80211_ptr;
84f10708 8170
d9d8b019 8171 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 8172 return -EINVAL;
8173
84f10708
TP		 8174 if (!rdev->ops->set_cqm_txe_config)
8175 return -EOPNOTSUPP;
8176
8177 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8178 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8179 return -EOPNOTSUPP;
8180
e35e4d28 8181 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 8182}
8183
d6dc1a38
JO		 8184static int nl80211_set_cqm_rssi(struct genl_info *info,
8185 s32 threshold, u32 hysteresis)
8186{
4c476991 8187 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 8188 struct net_device *dev = info->user_ptr[1];
1da5fcc8 8189 struct wireless_dev *wdev = dev->ieee80211_ptr;
d6dc1a38
JO		 8190
8191 if (threshold > 0)
8192 return -EINVAL;
8193
1da5fcc8
JB		 8194 /* disabling - hysteresis should also be zero then */
8195 if (threshold == 0)
8196 hysteresis = 0;
d6dc1a38 8197
4c476991
JB		 8198 if (!rdev->ops->set_cqm_rssi_config)
8199 return -EOPNOTSUPP;
d6dc1a38 8200
074ac8df 8201 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 8202 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8203 return -EOPNOTSUPP;
d6dc1a38 8204
e35e4d28 8205 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 8206}
8207
8208static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8209{
8210 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8211 struct nlattr *cqm;
8212 int err;
8213
8214 cqm = info->attrs[NL80211_ATTR_CQM];
1da5fcc8
JB		 8215 if (!cqm)
8216 return -EINVAL;
d6dc1a38
JO		 8217
8218 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8219 nl80211_attr_cqm_policy);
8220 if (err)
1da5fcc8 8221 return err;
d6dc1a38
JO		 8222
8223 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8224 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
1da5fcc8
JB		 8225 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8226 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
d6dc1a38 8227
1da5fcc8
JB		 8228 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8229 }
8230
8231 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8232 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8233 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8234 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8235 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8236 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8237
8238 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8239 }
8240
8241 return -EINVAL;
d6dc1a38
JO		 8242}
8243
29cbe68c
JB		 8244static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8245{
8246 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8247 struct net_device *dev = info->user_ptr[1];
8248 struct mesh_config cfg;
c80d545d 8249 struct mesh_setup setup;
29cbe68c
JB		 8250 int err;
8251
8252 /* start with default */
8253 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 8254 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 8255
24bdd9f4 8256 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 8257 /* and parse parameters if given */
24bdd9f4 8258 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 8259 if (err)
8260 return err;
8261 }
8262
8263 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8264 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8265 return -EINVAL;
8266
c80d545d
JC		 8267 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8268 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8269
4bb62344
CYY		 8270 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8271 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8272 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8273 return -EINVAL;
8274
9bdbf04d
MP		 8275 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8276 setup.beacon_interval =
8277 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8278 if (setup.beacon_interval < 10 ||
8279 setup.beacon_interval > 10000)
8280 return -EINVAL;
8281 }
8282
8283 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8284 setup.dtim_period =
8285 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8286 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8287 return -EINVAL;
8288 }
8289
c80d545d
JC		 8290 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8291 /* parse additional setup parameters if given */
8292 err = nl80211_parse_mesh_setup(info, &setup);
8293 if (err)
8294 return err;
8295 }
8296
d37bb18a
TP		 8297 if (setup.user_mpm)
8298 cfg.auto_open_plinks = false;
8299
cc1d2806 8300 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 8301 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8302 if (err)
8303 return err;
cc1d2806
JB		 8304 } else {
8305 /* cfg80211_join_mesh() will sort it out */
683b6d3b 8306 setup.chandef.chan = NULL;
cc1d2806
JB		 8307 }
8308
ffb3cf30
AN		 8309 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8310 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8311 int n_rates =
8312 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8313 struct ieee80211_supported_band *sband;
8314
8315 if (!setup.chandef.chan)
8316 return -EINVAL;
8317
8318 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8319
8320 err = ieee80211_get_ratemask(sband, rates, n_rates,
8321 &setup.basic_rates);
8322 if (err)
8323 return err;
8324 }
8325
c80d545d 8326 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 8327}
8328
8329static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8330{
8331 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8332 struct net_device *dev = info->user_ptr[1];
8333
8334 return cfg80211_leave_mesh(rdev, dev);
8335}
8336
dfb89c56 8337#ifdef CONFIG_PM
bb92d199
AK		 8338static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8339 struct cfg80211_registered_device *rdev)
8340{
6abb9cb9 8341 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
bb92d199
AK		 8342 struct nlattr *nl_pats, *nl_pat;
8343 int i, pat_len;
8344
6abb9cb9 8345 if (!wowlan->n_patterns)
bb92d199
AK		 8346 return 0;
8347
8348 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8349 if (!nl_pats)
8350 return -ENOBUFS;
8351
6abb9cb9 8352 for (i = 0; i < wowlan->n_patterns; i++) {
bb92d199
AK		 8353 nl_pat = nla_nest_start(msg, i + 1);
8354 if (!nl_pat)
8355 return -ENOBUFS;
6abb9cb9 8356 pat_len = wowlan->patterns[i].pattern_len;
50ac6607 8357 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
6abb9cb9 8358 wowlan->patterns[i].mask) ||
50ac6607
AK		 8359 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8360 wowlan->patterns[i].pattern) ||
8361 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
6abb9cb9 8362 wowlan->patterns[i].pkt_offset))
bb92d199
AK		 8363 return -ENOBUFS;
8364 nla_nest_end(msg, nl_pat);
8365 }
8366 nla_nest_end(msg, nl_pats);
8367
8368 return 0;
8369}
8370
2a0e047e
JB		 8371static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8372 struct cfg80211_wowlan_tcp *tcp)
8373{
8374 struct nlattr *nl_tcp;
8375
8376 if (!tcp)
8377 return 0;
8378
8379 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8380 if (!nl_tcp)
8381 return -ENOBUFS;
8382
8383 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8384 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8385 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8386 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8387 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8388 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8389 tcp->payload_len, tcp->payload) ||
8390 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8391 tcp->data_interval) ||
8392 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8393 tcp->wake_len, tcp->wake_data) ||
8394 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8395 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8396 return -ENOBUFS;
8397
8398 if (tcp->payload_seq.len &&
8399 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8400 sizeof(tcp->payload_seq), &tcp->payload_seq))
8401 return -ENOBUFS;
8402
8403 if (tcp->payload_tok.len &&
8404 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8405 sizeof(tcp->payload_tok) + tcp->tokens_size,
8406 &tcp->payload_tok))
8407 return -ENOBUFS;
8408
e248ad30
JB		 8409 nla_nest_end(msg, nl_tcp);
8410
2a0e047e
JB		 8411 return 0;
8412}
8413
ff1b6e69
JB		 8414static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8415{
8416 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8417 struct sk_buff *msg;
8418 void *hdr;
2a0e047e 8419 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 8420
964dc9e2 8421 if (!rdev->wiphy.wowlan)
ff1b6e69
JB		 8422 return -EOPNOTSUPP;
8423
6abb9cb9 8424 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
2a0e047e 8425 /* adjust size to have room for all the data */
6abb9cb9
JB		 8426 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8427 rdev->wiphy.wowlan_config->tcp->payload_len +
8428 rdev->wiphy.wowlan_config->tcp->wake_len +
8429 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
2a0e047e
JB		 8430 }
8431
8432 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 8433 if (!msg)
8434 return -ENOMEM;
8435
15e47304 8436 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 8437 NL80211_CMD_GET_WOWLAN);
8438 if (!hdr)
8439 goto nla_put_failure;
8440
6abb9cb9 8441 if (rdev->wiphy.wowlan_config) {
ff1b6e69
JB		 8442 struct nlattr *nl_wowlan;
8443
8444 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8445 if (!nl_wowlan)
8446 goto nla_put_failure;
8447
6abb9cb9 8448 if ((rdev->wiphy.wowlan_config->any &&
9360ffd1 8449 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6abb9cb9 8450 (rdev->wiphy.wowlan_config->disconnect &&
9360ffd1 8451 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6abb9cb9 8452 (rdev->wiphy.wowlan_config->magic_pkt &&
9360ffd1 8453 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6abb9cb9 8454 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9360ffd1 8455 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6abb9cb9 8456 (rdev->wiphy.wowlan_config->eap_identity_req &&
9360ffd1 8457 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6abb9cb9 8458 (rdev->wiphy.wowlan_config->four_way_handshake &&
9360ffd1 8459 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6abb9cb9 8460 (rdev->wiphy.wowlan_config->rfkill_release &&
9360ffd1
DM		 8461 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8462 goto nla_put_failure;
2a0e047e 8463
bb92d199
AK		 8464 if (nl80211_send_wowlan_patterns(msg, rdev))
8465 goto nla_put_failure;
2a0e047e 8466
6abb9cb9
JB		 8467 if (nl80211_send_wowlan_tcp(msg,
8468 rdev->wiphy.wowlan_config->tcp))
2a0e047e
JB		 8469 goto nla_put_failure;
8470
ff1b6e69
JB		 8471 nla_nest_end(msg, nl_wowlan);
8472 }
8473
8474 genlmsg_end(msg, hdr);
8475 return genlmsg_reply(msg, info);
8476
8477nla_put_failure:
8478 nlmsg_free(msg);
8479 return -ENOBUFS;
8480}
8481
2a0e047e
JB		 8482static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8483 struct nlattr *attr,
8484 struct cfg80211_wowlan *trig)
8485{
8486 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8487 struct cfg80211_wowlan_tcp *cfg;
8488 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8489 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8490 u32 size;
8491 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8492 int err, port;
8493
964dc9e2 8494 if (!rdev->wiphy.wowlan->tcp)
2a0e047e
JB		 8495 return -EINVAL;
8496
8497 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8498 nla_data(attr), nla_len(attr),
8499 nl80211_wowlan_tcp_policy);
8500 if (err)
8501 return err;
8502
8503 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8504 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8505 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8506 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8507 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8508 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8509 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8510 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8511 return -EINVAL;
8512
8513 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
964dc9e2 8514 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
2a0e047e
JB		 8515 return -EINVAL;
8516
8517 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
964dc9e2 8518 rdev->wiphy.wowlan->tcp->data_interval_max ||
723d568a 8519 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
2a0e047e
JB		 8520 return -EINVAL;
8521
8522 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
964dc9e2 8523 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
2a0e047e
JB		 8524 return -EINVAL;
8525
8526 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8527 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8528 return -EINVAL;
8529
8530 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8531 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8532
8533 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8534 tokens_size = tokln - sizeof(*tok);
8535
8536 if (!tok->len || tokens_size % tok->len)
8537 return -EINVAL;
964dc9e2 8538 if (!rdev->wiphy.wowlan->tcp->tok)
2a0e047e 8539 return -EINVAL;
964dc9e2 8540 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
2a0e047e 8541 return -EINVAL;
964dc9e2 8542 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
2a0e047e 8543 return -EINVAL;
964dc9e2 8544 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
2a0e047e
JB		 8545 return -EINVAL;
8546 if (tok->offset + tok->len > data_size)
8547 return -EINVAL;
8548 }
8549
8550 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8551 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
964dc9e2 8552 if (!rdev->wiphy.wowlan->tcp->seq)
2a0e047e
JB		 8553 return -EINVAL;
8554 if (seq->len == 0 || seq->len > 4)
8555 return -EINVAL;
8556 if (seq->len + seq->offset > data_size)
8557 return -EINVAL;
8558 }
8559
8560 size = sizeof(*cfg);
8561 size += data_size;
8562 size += wake_size + wake_mask_size;
8563 size += tokens_size;
8564
8565 cfg = kzalloc(size, GFP_KERNEL);
8566 if (!cfg)
8567 return -ENOMEM;
8568 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8569 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8570 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8571 ETH_ALEN);
8572 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8573 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8574 else
8575 port = 0;
8576#ifdef CONFIG_INET
8577 /* allocate a socket and port for it and use it */
8578 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8579 IPPROTO_TCP, &cfg->sock, 1);
8580 if (err) {
8581 kfree(cfg);
8582 return err;
8583 }
8584 if (inet_csk_get_port(cfg->sock->sk, port)) {
8585 sock_release(cfg->sock);
8586 kfree(cfg);
8587 return -EADDRINUSE;
8588 }
8589 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8590#else
8591 if (!port) {
8592 kfree(cfg);
8593 return -EINVAL;
8594 }
8595 cfg->src_port = port;
8596#endif
8597
8598 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8599 cfg->payload_len = data_size;
8600 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8601 memcpy((void *)cfg->payload,
8602 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8603 data_size);
8604 if (seq)
8605 cfg->payload_seq = *seq;
8606 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8607 cfg->wake_len = wake_size;
8608 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8609 memcpy((void *)cfg->wake_data,
8610 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8611 wake_size);
8612 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8613 data_size + wake_size;
8614 memcpy((void *)cfg->wake_mask,
8615 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8616 wake_mask_size);
8617 if (tok) {
8618 cfg->tokens_size = tokens_size;
8619 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8620 }
8621
8622 trig->tcp = cfg;
8623
8624 return 0;
8625}
8626
ff1b6e69
JB		 8627static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8628{
8629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8630 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 8631 struct cfg80211_wowlan new_triggers = {};
ae33bd81 8632 struct cfg80211_wowlan *ntrig;
964dc9e2 8633 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
ff1b6e69 8634 int err, i;
6abb9cb9 8635 bool prev_enabled = rdev->wiphy.wowlan_config;
ff1b6e69 8636
964dc9e2 8637 if (!wowlan)
ff1b6e69
JB		 8638 return -EOPNOTSUPP;
8639
ae33bd81
JB		 8640 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8641 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8642 rdev->wiphy.wowlan_config = NULL;
ae33bd81
JB		 8643 goto set_wakeup;
8644 }
ff1b6e69
JB		 8645
8646 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8647 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8648 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8649 nl80211_wowlan_policy);
8650 if (err)
8651 return err;
8652
8653 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8654 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8655 return -EINVAL;
8656 new_triggers.any = true;
8657 }
8658
8659 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8660 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8661 return -EINVAL;
8662 new_triggers.disconnect = true;
8663 }
8664
8665 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8666 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8667 return -EINVAL;
8668 new_triggers.magic_pkt = true;
8669 }
8670
77dbbb13
JB		 8671 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8672 return -EINVAL;
8673
8674 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8675 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8676 return -EINVAL;
8677 new_triggers.gtk_rekey_failure = true;
8678 }
8679
8680 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8681 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8682 return -EINVAL;
8683 new_triggers.eap_identity_req = true;
8684 }
8685
8686 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8687 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8688 return -EINVAL;
8689 new_triggers.four_way_handshake = true;
8690 }
8691
8692 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8693 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8694 return -EINVAL;
8695 new_triggers.rfkill_release = true;
8696 }
8697
ff1b6e69
JB		 8698 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8699 struct nlattr *pat;
8700 int n_patterns = 0;
bb92d199 8701 int rem, pat_len, mask_len, pkt_offset;
50ac6607 8702 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
ff1b6e69
JB		 8703
8704 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8705 rem)
8706 n_patterns++;
8707 if (n_patterns > wowlan->n_patterns)
8708 return -EINVAL;
8709
8710 new_triggers.patterns = kcalloc(n_patterns,
8711 sizeof(new_triggers.patterns[0]),
8712 GFP_KERNEL);
8713 if (!new_triggers.patterns)
8714 return -ENOMEM;
8715
8716 new_triggers.n_patterns = n_patterns;
8717 i = 0;
8718
8719 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8720 rem) {
922bd80f
JB		 8721 u8 *mask_pat;
8722
50ac6607
AK		 8723 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8724 nla_len(pat), NULL);
ff1b6e69 8725 err = -EINVAL;
50ac6607
AK		 8726 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8727 !pat_tb[NL80211_PKTPAT_PATTERN])
ff1b6e69 8728 goto error;
50ac6607 8729 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
ff1b6e69 8730 mask_len = DIV_ROUND_UP(pat_len, 8);
50ac6607 8731 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
ff1b6e69
JB		 8732 goto error;
8733 if (pat_len > wowlan->pattern_max_len ||
8734 pat_len < wowlan->pattern_min_len)
8735 goto error;
8736
50ac6607 8737 if (!pat_tb[NL80211_PKTPAT_OFFSET])
bb92d199
AK		 8738 pkt_offset = 0;
8739 else
8740 pkt_offset = nla_get_u32(
50ac6607 8741 pat_tb[NL80211_PKTPAT_OFFSET]);
bb92d199
AK		 8742 if (pkt_offset > wowlan->max_pkt_offset)
8743 goto error;
8744 new_triggers.patterns[i].pkt_offset = pkt_offset;
8745
922bd80f
JB		 8746 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8747 if (!mask_pat) {
ff1b6e69
JB		 8748 err = -ENOMEM;
8749 goto error;
8750 }
922bd80f
JB		 8751 new_triggers.patterns[i].mask = mask_pat;
8752 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
ff1b6e69 8753 mask_len);
922bd80f
JB		 8754 mask_pat += mask_len;
8755 new_triggers.patterns[i].pattern = mask_pat;
ff1b6e69 8756 new_triggers.patterns[i].pattern_len = pat_len;
922bd80f 8757 memcpy(mask_pat,
50ac6607 8758 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
ff1b6e69
JB		 8759 pat_len);
8760 i++;
8761 }
8762 }
8763
2a0e047e
JB		 8764 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8765 err = nl80211_parse_wowlan_tcp(
8766 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8767 &new_triggers);
8768 if (err)
8769 goto error;
8770 }
8771
ae33bd81
JB		 8772 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8773 if (!ntrig) {
8774 err = -ENOMEM;
8775 goto error;
ff1b6e69 8776 }
ae33bd81 8777 cfg80211_rdev_free_wowlan(rdev);
6abb9cb9 8778 rdev->wiphy.wowlan_config = ntrig;
ff1b6e69 8779
ae33bd81 8780 set_wakeup:
6abb9cb9
JB		 8781 if (rdev->ops->set_wakeup &&
8782 prev_enabled != !!rdev->wiphy.wowlan_config)
8783 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
6d52563f 8784
ff1b6e69
JB		 8785 return 0;
8786 error:
8787 for (i = 0; i < new_triggers.n_patterns; i++)
8788 kfree(new_triggers.patterns[i].mask);
8789 kfree(new_triggers.patterns);
2a0e047e
JB		 8790 if (new_triggers.tcp && new_triggers.tcp->sock)
8791 sock_release(new_triggers.tcp->sock);
8792 kfree(new_triggers.tcp);
ff1b6e69
JB		 8793 return err;
8794}
dfb89c56 8795#endif
ff1b6e69 8796
be29b99a
AK		 8797static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8798 struct cfg80211_registered_device *rdev)
8799{
8800 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8801 int i, j, pat_len;
8802 struct cfg80211_coalesce_rules *rule;
8803
8804 if (!rdev->coalesce->n_rules)
8805 return 0;
8806
8807 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8808 if (!nl_rules)
8809 return -ENOBUFS;
8810
8811 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8812 nl_rule = nla_nest_start(msg, i + 1);
8813 if (!nl_rule)
8814 return -ENOBUFS;
8815
8816 rule = &rdev->coalesce->rules[i];
8817 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8818 rule->delay))
8819 return -ENOBUFS;
8820
8821 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8822 rule->condition))
8823 return -ENOBUFS;
8824
8825 nl_pats = nla_nest_start(msg,
8826 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8827 if (!nl_pats)
8828 return -ENOBUFS;
8829
8830 for (j = 0; j < rule->n_patterns; j++) {
8831 nl_pat = nla_nest_start(msg, j + 1);
8832 if (!nl_pat)
8833 return -ENOBUFS;
8834 pat_len = rule->patterns[j].pattern_len;
8835 if (nla_put(msg, NL80211_PKTPAT_MASK,
8836 DIV_ROUND_UP(pat_len, 8),
8837 rule->patterns[j].mask) ||
8838 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8839 rule->patterns[j].pattern) ||
8840 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8841 rule->patterns[j].pkt_offset))
8842 return -ENOBUFS;
8843 nla_nest_end(msg, nl_pat);
8844 }
8845 nla_nest_end(msg, nl_pats);
8846 nla_nest_end(msg, nl_rule);
8847 }
8848 nla_nest_end(msg, nl_rules);
8849
8850 return 0;
8851}
8852
8853static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8854{
8855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8856 struct sk_buff *msg;
8857 void *hdr;
8858
8859 if (!rdev->wiphy.coalesce)
8860 return -EOPNOTSUPP;
8861
8862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8863 if (!msg)
8864 return -ENOMEM;
8865
8866 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8867 NL80211_CMD_GET_COALESCE);
8868 if (!hdr)
8869 goto nla_put_failure;
8870
8871 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8872 goto nla_put_failure;
8873
8874 genlmsg_end(msg, hdr);
8875 return genlmsg_reply(msg, info);
8876
8877nla_put_failure:
8878 nlmsg_free(msg);
8879 return -ENOBUFS;
8880}
8881
8882void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8883{
8884 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8885 int i, j;
8886 struct cfg80211_coalesce_rules *rule;
8887
8888 if (!coalesce)
8889 return;
8890
8891 for (i = 0; i < coalesce->n_rules; i++) {
8892 rule = &coalesce->rules[i];
8893 for (j = 0; j < rule->n_patterns; j++)
8894 kfree(rule->patterns[j].mask);
8895 kfree(rule->patterns);
8896 }
8897 kfree(coalesce->rules);
8898 kfree(coalesce);
8899 rdev->coalesce = NULL;
8900}
8901
8902static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8903 struct nlattr *rule,
8904 struct cfg80211_coalesce_rules *new_rule)
8905{
8906 int err, i;
8907 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8908 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8909 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8910 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8911
8912 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8913 nla_len(rule), nl80211_coalesce_policy);
8914 if (err)
8915 return err;
8916
8917 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8918 new_rule->delay =
8919 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8920 if (new_rule->delay > coalesce->max_delay)
8921 return -EINVAL;
8922
8923 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8924 new_rule->condition =
8925 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8926 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8927 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8928 return -EINVAL;
8929
8930 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8931 return -EINVAL;
8932
8933 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8934 rem)
8935 n_patterns++;
8936 if (n_patterns > coalesce->n_patterns)
8937 return -EINVAL;
8938
8939 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8940 GFP_KERNEL);
8941 if (!new_rule->patterns)
8942 return -ENOMEM;
8943
8944 new_rule->n_patterns = n_patterns;
8945 i = 0;
8946
8947 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8948 rem) {
922bd80f
JB		 8949 u8 *mask_pat;
8950
be29b99a
AK		 8951 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8952 nla_len(pat), NULL);
8953 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8954 !pat_tb[NL80211_PKTPAT_PATTERN])
8955 return -EINVAL;
8956 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8957 mask_len = DIV_ROUND_UP(pat_len, 8);
8958 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8959 return -EINVAL;
8960 if (pat_len > coalesce->pattern_max_len ||
8961 pat_len < coalesce->pattern_min_len)
8962 return -EINVAL;
8963
8964 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8965 pkt_offset = 0;
8966 else
8967 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8968 if (pkt_offset > coalesce->max_pkt_offset)
8969 return -EINVAL;
8970 new_rule->patterns[i].pkt_offset = pkt_offset;
8971
922bd80f
JB		 8972 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8973 if (!mask_pat)
be29b99a 8974 return -ENOMEM;
922bd80f
JB		 8975
8976 new_rule->patterns[i].mask = mask_pat;
8977 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8978 mask_len);
8979
8980 mask_pat += mask_len;
8981 new_rule->patterns[i].pattern = mask_pat;
be29b99a 8982 new_rule->patterns[i].pattern_len = pat_len;
922bd80f
JB		 8983 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8984 pat_len);
be29b99a
AK		 8985 i++;
8986 }
8987
8988 return 0;
8989}
8990
8991static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8992{
8993 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8994 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8995 struct cfg80211_coalesce new_coalesce = {};
8996 struct cfg80211_coalesce *n_coalesce;
8997 int err, rem_rule, n_rules = 0, i, j;
8998 struct nlattr *rule;
8999 struct cfg80211_coalesce_rules *tmp_rule;
9000
9001 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9002 return -EOPNOTSUPP;
9003
9004 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9005 cfg80211_rdev_free_coalesce(rdev);
9006 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9007 return 0;
9008 }
9009
9010 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9011 rem_rule)
9012 n_rules++;
9013 if (n_rules > coalesce->n_rules)
9014 return -EINVAL;
9015
9016 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9017 GFP_KERNEL);
9018 if (!new_coalesce.rules)
9019 return -ENOMEM;
9020
9021 new_coalesce.n_rules = n_rules;
9022 i = 0;
9023
9024 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9025 rem_rule) {
9026 err = nl80211_parse_coalesce_rule(rdev, rule,
9027 &new_coalesce.rules[i]);
9028 if (err)
9029 goto error;
9030
9031 i++;
9032 }
9033
9034 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9035 if (err)
9036 goto error;
9037
9038 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9039 if (!n_coalesce) {
9040 err = -ENOMEM;
9041 goto error;
9042 }
9043 cfg80211_rdev_free_coalesce(rdev);
9044 rdev->coalesce = n_coalesce;
9045
9046 return 0;
9047error:
9048 for (i = 0; i < new_coalesce.n_rules; i++) {
9049 tmp_rule = &new_coalesce.rules[i];
9050 for (j = 0; j < tmp_rule->n_patterns; j++)
9051 kfree(tmp_rule->patterns[j].mask);
9052 kfree(tmp_rule->patterns);
9053 }
9054 kfree(new_coalesce.rules);
9055
9056 return err;
9057}
9058
e5497d76
JB		 9059static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9060{
9061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9062 struct net_device *dev = info->user_ptr[1];
9063 struct wireless_dev *wdev = dev->ieee80211_ptr;
9064 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9065 struct cfg80211_gtk_rekey_data rekey_data;
9066 int err;
9067
9068 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9069 return -EINVAL;
9070
9071 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9072 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9073 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9074 nl80211_rekey_policy);
9075 if (err)
9076 return err;
9077
9078 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9079 return -ERANGE;
9080 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9081 return -ERANGE;
9082 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9083 return -ERANGE;
9084
78f686ca
JB		 9085 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9086 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9087 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
e5497d76
JB		 9088
9089 wdev_lock(wdev);
9090 if (!wdev->current_bss) {
9091 err = -ENOTCONN;
9092 goto out;
9093 }
9094
9095 if (!rdev->ops->set_rekey_data) {
9096 err = -EOPNOTSUPP;
9097 goto out;
9098 }
9099
e35e4d28 9100 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 9101 out:
9102 wdev_unlock(wdev);
9103 return err;
9104}
9105
28946da7
JB		 9106static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9107 struct genl_info *info)
9108{
9109 struct net_device *dev = info->user_ptr[1];
9110 struct wireless_dev *wdev = dev->ieee80211_ptr;
9111
9112 if (wdev->iftype != NL80211_IFTYPE_AP &&
9113 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9114 return -EINVAL;
9115
15e47304 9116 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 9117 return -EBUSY;
9118
15e47304 9119 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 9120 return 0;
9121}
9122
7f6cf311
JB		 9123static int nl80211_probe_client(struct sk_buff *skb,
9124 struct genl_info *info)
9125{
9126 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9127 struct net_device *dev = info->user_ptr[1];
9128 struct wireless_dev *wdev = dev->ieee80211_ptr;
9129 struct sk_buff *msg;
9130 void *hdr;
9131 const u8 *addr;
9132 u64 cookie;
9133 int err;
9134
9135 if (wdev->iftype != NL80211_IFTYPE_AP &&
9136 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9137 return -EOPNOTSUPP;
9138
9139 if (!info->attrs[NL80211_ATTR_MAC])
9140 return -EINVAL;
9141
9142 if (!rdev->ops->probe_client)
9143 return -EOPNOTSUPP;
9144
9145 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9146 if (!msg)
9147 return -ENOMEM;
9148
15e47304 9149 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311 9150 NL80211_CMD_PROBE_CLIENT);
cb35fba3
DC		 9151 if (!hdr) {
9152 err = -ENOBUFS;
7f6cf311
JB		 9153 goto free_msg;
9154 }
9155
9156 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9157
e35e4d28 9158 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 9159 if (err)
9160 goto free_msg;
9161
9360ffd1
DM		 9162 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9163 goto nla_put_failure;
7f6cf311
JB		 9164
9165 genlmsg_end(msg, hdr);
9166
9167 return genlmsg_reply(msg, info);
9168
9169 nla_put_failure:
9170 err = -ENOBUFS;
9171 free_msg:
9172 nlmsg_free(msg);
9173 return err;
9174}
9175
5e760230
JB		 9176static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9177{
9178 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 9179 struct cfg80211_beacon_registration *reg, *nreg;
9180 int rv;
5e760230
JB		 9181
9182 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9183 return -EOPNOTSUPP;
9184
37c73b5f
BG		 9185 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9186 if (!nreg)
9187 return -ENOMEM;
9188
9189 /* First, check if already registered. */
9190 spin_lock_bh(&rdev->beacon_registrations_lock);
9191 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9192 if (reg->nlportid == info->snd_portid) {
9193 rv = -EALREADY;
9194 goto out_err;
9195 }
9196 }
9197 /* Add it to the list */
9198 nreg->nlportid = info->snd_portid;
9199 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 9200
37c73b5f 9201 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9202
9203 return 0;
37c73b5f
BG		 9204out_err:
9205 spin_unlock_bh(&rdev->beacon_registrations_lock);
9206 kfree(nreg);
9207 return rv;
5e760230
JB		 9208}
9209
98104fde
JB		 9210static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9211{
9212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9213 struct wireless_dev *wdev = info->user_ptr[1];
9214 int err;
9215
9216 if (!rdev->ops->start_p2p_device)
9217 return -EOPNOTSUPP;
9218
9219 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9220 return -EOPNOTSUPP;
9221
9222 if (wdev->p2p_started)
9223 return 0;
9224
b6a55015
LC		 9225 if (rfkill_blocked(rdev->rfkill))
9226 return -ERFKILL;
98104fde 9227
eeb126e9 9228 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 9229 if (err)
9230 return err;
9231
9232 wdev->p2p_started = true;
98104fde 9233 rdev->opencount++;
98104fde
JB		 9234
9235 return 0;
9236}
9237
9238static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9239{
9240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9241 struct wireless_dev *wdev = info->user_ptr[1];
9242
9243 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9244 return -EOPNOTSUPP;
9245
9246 if (!rdev->ops->stop_p2p_device)
9247 return -EOPNOTSUPP;
9248
f9f47529 9249 cfg80211_stop_p2p_device(rdev, wdev);
98104fde
JB		 9250
9251 return 0;
9252}
9253
3713b4e3
JB		 9254static int nl80211_get_protocol_features(struct sk_buff *skb,
9255 struct genl_info *info)
9256{
9257 void *hdr;
9258 struct sk_buff *msg;
9259
9260 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9261 if (!msg)
9262 return -ENOMEM;
9263
9264 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9265 NL80211_CMD_GET_PROTOCOL_FEATURES);
9266 if (!hdr)
9267 goto nla_put_failure;
9268
9269 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9270 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9271 goto nla_put_failure;
9272
9273 genlmsg_end(msg, hdr);
9274 return genlmsg_reply(msg, info);
9275
9276 nla_put_failure:
9277 kfree_skb(msg);
9278 return -ENOBUFS;
9279}
9280
355199e0
JM		 9281static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9282{
9283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9284 struct cfg80211_update_ft_ies_params ft_params;
9285 struct net_device *dev = info->user_ptr[1];
9286
9287 if (!rdev->ops->update_ft_ies)
9288 return -EOPNOTSUPP;
9289
9290 if (!info->attrs[NL80211_ATTR_MDID] ||
9291 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9292 return -EINVAL;
9293
9294 memset(&ft_params, 0, sizeof(ft_params));
9295 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9296 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9297 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9298
9299 return rdev_update_ft_ies(rdev, dev, &ft_params);
9300}
9301
5de17984
AS		 9302static int nl80211_crit_protocol_start(struct sk_buff *skb,
9303 struct genl_info *info)
9304{
9305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9306 struct wireless_dev *wdev = info->user_ptr[1];
9307 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9308 u16 duration;
9309 int ret;
9310
9311 if (!rdev->ops->crit_proto_start)
9312 return -EOPNOTSUPP;
9313
9314 if (WARN_ON(!rdev->ops->crit_proto_stop))
9315 return -EINVAL;
9316
9317 if (rdev->crit_proto_nlportid)
9318 return -EBUSY;
9319
9320 /* determine protocol if provided */
9321 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9322 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9323
9324 if (proto >= NUM_NL80211_CRIT_PROTO)
9325 return -EINVAL;
9326
9327 /* timeout must be provided */
9328 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9329 return -EINVAL;
9330
9331 duration =
9332 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9333
9334 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9335 return -ERANGE;
9336
9337 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9338 if (!ret)
9339 rdev->crit_proto_nlportid = info->snd_portid;
9340
9341 return ret;
9342}
9343
9344static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9345 struct genl_info *info)
9346{
9347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9348 struct wireless_dev *wdev = info->user_ptr[1];
9349
9350 if (!rdev->ops->crit_proto_stop)
9351 return -EOPNOTSUPP;
9352
9353 if (rdev->crit_proto_nlportid) {
9354 rdev->crit_proto_nlportid = 0;
9355 rdev_crit_proto_stop(rdev, wdev);
9356 }
9357 return 0;
9358}
9359
ad7e718c
JB		 9360static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9361{
9362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9363 struct wireless_dev *wdev =
9364 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9365 int i, err;
9366 u32 vid, subcmd;
9367
9368 if (!rdev->wiphy.vendor_commands)
9369 return -EOPNOTSUPP;
9370
9371 if (IS_ERR(wdev)) {
9372 err = PTR_ERR(wdev);
9373 if (err != -EINVAL)
9374 return err;
9375 wdev = NULL;
9376 } else if (wdev->wiphy != &rdev->wiphy) {
9377 return -EINVAL;
9378 }
9379
9380 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9381 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9382 return -EINVAL;
9383
9384 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9385 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9386 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9387 const struct wiphy_vendor_command *vcmd;
9388 void *data = NULL;
9389 int len = 0;
9390
9391 vcmd = &rdev->wiphy.vendor_commands[i];
9392
9393 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9394 continue;
9395
9396 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9397 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9398 if (!wdev)
9399 return -EINVAL;
9400 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9401 !wdev->netdev)
9402 return -EINVAL;
9403
9404 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9405 if (wdev->netdev &&
9406 !netif_running(wdev->netdev))
9407 return -ENETDOWN;
9408 if (!wdev->netdev && !wdev->p2p_started)
9409 return -ENETDOWN;
9410 }
9411 } else {
9412 wdev = NULL;
9413 }
9414
9415 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9416 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9417 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9418 }
9419
9420 rdev->cur_cmd_info = info;
9421 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9422 data, len);
9423 rdev->cur_cmd_info = NULL;
9424 return err;
9425 }
9426
9427 return -EOPNOTSUPP;
9428}
9429
9430struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9431 enum nl80211_commands cmd,
9432 enum nl80211_attrs attr,
9433 int approxlen)
9434{
f26cbf40 9435 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ad7e718c
JB		 9436
9437 if (WARN_ON(!rdev->cur_cmd_info))
9438 return NULL;
9439
9440 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9441 rdev->cur_cmd_info->snd_portid,
9442 rdev->cur_cmd_info->snd_seq,
567ffc35 9443 cmd, attr, NULL, GFP_KERNEL);
ad7e718c
JB		 9444}
9445EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9446
9447int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9448{
9449 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9450 void *hdr = ((void **)skb->cb)[1];
9451 struct nlattr *data = ((void **)skb->cb)[2];
9452
bd8c78e7
JB		 9453 /* clear CB data for netlink core to own from now on */
9454 memset(skb->cb, 0, sizeof(skb->cb));
9455
ad7e718c
JB		 9456 if (WARN_ON(!rdev->cur_cmd_info)) {
9457 kfree_skb(skb);
9458 return -EINVAL;
9459 }
9460
9461 nla_nest_end(skb, data);
9462 genlmsg_end(skb, hdr);
9463 return genlmsg_reply(skb, rdev->cur_cmd_info);
9464}
9465EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9466
9467
fa9ffc74
KP		 9468static int nl80211_set_qos_map(struct sk_buff *skb,
9469 struct genl_info *info)
9470{
9471 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9472 struct cfg80211_qos_map *qos_map = NULL;
9473 struct net_device *dev = info->user_ptr[1];
9474 u8 *pos, len, num_des, des_len, des;
9475 int ret;
9476
9477 if (!rdev->ops->set_qos_map)
9478 return -EOPNOTSUPP;
9479
9480 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9481 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9482 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9483
9484 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9485 len > IEEE80211_QOS_MAP_LEN_MAX)
9486 return -EINVAL;
9487
9488 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9489 if (!qos_map)
9490 return -ENOMEM;
9491
9492 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9493 if (num_des) {
9494 des_len = num_des *
9495 sizeof(struct cfg80211_dscp_exception);
9496 memcpy(qos_map->dscp_exception, pos, des_len);
9497 qos_map->num_des = num_des;
9498 for (des = 0; des < num_des; des++) {
9499 if (qos_map->dscp_exception[des].up > 7) {
9500 kfree(qos_map);
9501 return -EINVAL;
9502 }
9503 }
9504 pos += des_len;
9505 }
9506 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9507 }
9508
9509 wdev_lock(dev->ieee80211_ptr);
9510 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9511 if (!ret)
9512 ret = rdev_set_qos_map(rdev, dev, qos_map);
9513 wdev_unlock(dev->ieee80211_ptr);
9514
9515 kfree(qos_map);
9516 return ret;
9517}
9518
960d01ac
JB		 9519static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9520{
9521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9522 struct net_device *dev = info->user_ptr[1];
9523 struct wireless_dev *wdev = dev->ieee80211_ptr;
9524 const u8 *peer;
9525 u8 tsid, up;
9526 u16 admitted_time = 0;
9527 int err;
9528
9529 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_WMM_ADMISSION))
9530 return -EOPNOTSUPP;
9531
9532 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9533 !info->attrs[NL80211_ATTR_USER_PRIO])
9534 return -EINVAL;
9535
9536 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9537 if (tsid >= IEEE80211_NUM_TIDS)
9538 return -EINVAL;
9539
9540 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9541 if (up >= IEEE80211_NUM_UPS)
9542 return -EINVAL;
9543
9544 /* WMM uses TIDs 0-7 even for TSPEC */
9545 if (tsid < IEEE80211_FIRST_TSPEC_TSID) {
9546 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_WMM_ADMISSION))
9547 return -EINVAL;
9548 } else {
9549 /* TODO: handle 802.11 TSPEC/admission control
9550 * need more attributes for that (e.g. BA session requirement)
9551 */
9552 return -EINVAL;
9553 }
9554
9555 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9556
9557 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9558 admitted_time =
9559 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9560 if (!admitted_time)
9561 return -EINVAL;
9562 }
9563
9564 wdev_lock(wdev);
9565 switch (wdev->iftype) {
9566 case NL80211_IFTYPE_STATION:
9567 case NL80211_IFTYPE_P2P_CLIENT:
9568 if (wdev->current_bss)
9569 break;
9570 err = -ENOTCONN;
9571 goto out;
9572 default:
9573 err = -EOPNOTSUPP;
9574 goto out;
9575 }
9576
9577 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9578
9579 out:
9580 wdev_unlock(wdev);
9581 return err;
9582}
9583
9584static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9585{
9586 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9587 struct net_device *dev = info->user_ptr[1];
9588 struct wireless_dev *wdev = dev->ieee80211_ptr;
9589 const u8 *peer;
9590 u8 tsid;
9591 int err;
9592
9593 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9594 return -EINVAL;
9595
9596 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9597 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9598
9599 wdev_lock(wdev);
9600 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9601 wdev_unlock(wdev);
9602
9603 return err;
9604}
9605
4c476991
JB		 9606#define NL80211_FLAG_NEED_WIPHY 0x01
9607#define NL80211_FLAG_NEED_NETDEV 0x02
9608#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 9609#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9610#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9611 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 9612#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 9613/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 9614#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9615 NL80211_FLAG_CHECK_NETDEV_UP)
5393b917 9616#define NL80211_FLAG_CLEAR_SKB 0x20
4c476991 9617
f84f771d 9618static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9619 struct genl_info *info)
9620{
9621 struct cfg80211_registered_device *rdev;
89a54e48 9622 struct wireless_dev *wdev;
4c476991 9623 struct net_device *dev;
4c476991
JB		 9624 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9625
9626 if (rtnl)
9627 rtnl_lock();
9628
9629 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 9630 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 9631 if (IS_ERR(rdev)) {
9632 if (rtnl)
9633 rtnl_unlock();
9634 return PTR_ERR(rdev);
9635 }
9636 info->user_ptr[0] = rdev;
1bf614ef
JB		 9637 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9638 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
5fe231e8
JB		 9639 ASSERT_RTNL();
9640
89a54e48
JB		 9641 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9642 info->attrs);
9643 if (IS_ERR(wdev)) {
4c476991
JB		 9644 if (rtnl)
9645 rtnl_unlock();
89a54e48 9646 return PTR_ERR(wdev);
4c476991 9647 }
89a54e48 9648
89a54e48 9649 dev = wdev->netdev;
f26cbf40 9650 rdev = wiphy_to_rdev(wdev->wiphy);
89a54e48 9651
1bf614ef
JB		 9652 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9653 if (!dev) {
1bf614ef
JB		 9654 if (rtnl)
9655 rtnl_unlock();
9656 return -EINVAL;
9657 }
9658
9659 info->user_ptr[1] = dev;
9660 } else {
9661 info->user_ptr[1] = wdev;
41265714 9662 }
1bf614ef
JB		 9663
9664 if (dev) {
9665 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9666 !netif_running(dev)) {
1bf614ef
JB		 9667 if (rtnl)
9668 rtnl_unlock();
9669 return -ENETDOWN;
9670 }
9671
9672 dev_hold(dev);
98104fde
JB		 9673 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9674 if (!wdev->p2p_started) {
98104fde
JB		 9675 if (rtnl)
9676 rtnl_unlock();
9677 return -ENETDOWN;
9678 }
41265714 9679 }
89a54e48 9680
4c476991 9681 info->user_ptr[0] = rdev;
4c476991
JB		 9682 }
9683
9684 return 0;
9685}
9686
f84f771d 9687static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
4c476991
JB		 9688 struct genl_info *info)
9689{
1bf614ef
JB		 9690 if (info->user_ptr[1]) {
9691 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9692 struct wireless_dev *wdev = info->user_ptr[1];
9693
9694 if (wdev->netdev)
9695 dev_put(wdev->netdev);
9696 } else {
9697 dev_put(info->user_ptr[1]);
9698 }
9699 }
5393b917 9700
4c476991
JB		 9701 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9702 rtnl_unlock();
5393b917
JB		 9703
9704 /* If needed, clear the netlink message payload from the SKB
9705 * as it might contain key data that shouldn't stick around on
9706 * the heap after the SKB is freed. The netlink message header
9707 * is still needed for further processing, so leave it intact.
9708 */
9709 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
9710 struct nlmsghdr *nlh = nlmsg_hdr(skb);
9711
9712 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
9713 }
4c476991
JB		 9714}
9715
4534de83 9716static const struct genl_ops nl80211_ops[] = {
55682965
JB		 9717 {
9718 .cmd = NL80211_CMD_GET_WIPHY,
9719 .doit = nl80211_get_wiphy,
9720 .dumpit = nl80211_dump_wiphy,
86e8cf98 9721 .done = nl80211_dump_wiphy_done,
55682965
JB		 9722 .policy = nl80211_policy,
9723 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9724 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9725 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9726 },
9727 {
9728 .cmd = NL80211_CMD_SET_WIPHY,
9729 .doit = nl80211_set_wiphy,
9730 .policy = nl80211_policy,
9731 .flags = GENL_ADMIN_PERM,
4c476991 9732 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 9733 },
9734 {
9735 .cmd = NL80211_CMD_GET_INTERFACE,
9736 .doit = nl80211_get_interface,
9737 .dumpit = nl80211_dump_interface,
9738 .policy = nl80211_policy,
9739 /* can be retrieved by unprivileged users */
5fe231e8
JB		 9740 .internal_flags = NL80211_FLAG_NEED_WDEV |
9741 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9742 },
9743 {
9744 .cmd = NL80211_CMD_SET_INTERFACE,
9745 .doit = nl80211_set_interface,
9746 .policy = nl80211_policy,
9747 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9748 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9749 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9750 },
9751 {
9752 .cmd = NL80211_CMD_NEW_INTERFACE,
9753 .doit = nl80211_new_interface,
9754 .policy = nl80211_policy,
9755 .flags = GENL_ADMIN_PERM,
4c476991
JB		 9756 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9757 NL80211_FLAG_NEED_RTNL,
55682965
JB		 9758 },
9759 {
9760 .cmd = NL80211_CMD_DEL_INTERFACE,
9761 .doit = nl80211_del_interface,
9762 .policy = nl80211_policy,
41ade00f 9763 .flags = GENL_ADMIN_PERM,
84efbb84 9764 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 9765 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9766 },
9767 {
9768 .cmd = NL80211_CMD_GET_KEY,
9769 .doit = nl80211_get_key,
9770 .policy = nl80211_policy,
9771 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9773 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 9774 },
9775 {
9776 .cmd = NL80211_CMD_SET_KEY,
9777 .doit = nl80211_set_key,
9778 .policy = nl80211_policy,
9779 .flags = GENL_ADMIN_PERM,
41265714 9780 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 9781 NL80211_FLAG_NEED_RTNL |
9782 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 9783 },
9784 {
9785 .cmd = NL80211_CMD_NEW_KEY,
9786 .doit = nl80211_new_key,
9787 .policy = nl80211_policy,
9788 .flags = GENL_ADMIN_PERM,
41265714 9789 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 9790 NL80211_FLAG_NEED_RTNL |
9791 NL80211_FLAG_CLEAR_SKB,
41ade00f
JB		 9792 },
9793 {
9794 .cmd = NL80211_CMD_DEL_KEY,
9795 .doit = nl80211_del_key,
9796 .policy = nl80211_policy,
55682965 9797 .flags = GENL_ADMIN_PERM,
41265714 9798 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9799 NL80211_FLAG_NEED_RTNL,
55682965 9800 },
ed1b6cc7
JB		 9801 {
9802 .cmd = NL80211_CMD_SET_BEACON,
9803 .policy = nl80211_policy,
9804 .flags = GENL_ADMIN_PERM,
8860020e 9805 .doit = nl80211_set_beacon,
2b5f8b0b 9806 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9807 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9808 },
9809 {
8860020e 9810 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 9811 .policy = nl80211_policy,
9812 .flags = GENL_ADMIN_PERM,
8860020e 9813 .doit = nl80211_start_ap,
2b5f8b0b 9814 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9815 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 9816 },
9817 {
8860020e 9818 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 9819 .policy = nl80211_policy,
9820 .flags = GENL_ADMIN_PERM,
8860020e 9821 .doit = nl80211_stop_ap,
2b5f8b0b 9822 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9823 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 9824 },
5727ef1b
JB		 9825 {
9826 .cmd = NL80211_CMD_GET_STATION,
9827 .doit = nl80211_get_station,
2ec600d6 9828 .dumpit = nl80211_dump_station,
5727ef1b 9829 .policy = nl80211_policy,
4c476991
JB		 9830 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9831 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9832 },
9833 {
9834 .cmd = NL80211_CMD_SET_STATION,
9835 .doit = nl80211_set_station,
9836 .policy = nl80211_policy,
9837 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9838 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9839 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9840 },
9841 {
9842 .cmd = NL80211_CMD_NEW_STATION,
9843 .doit = nl80211_new_station,
9844 .policy = nl80211_policy,
9845 .flags = GENL_ADMIN_PERM,
41265714 9846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9847 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 9848 },
9849 {
9850 .cmd = NL80211_CMD_DEL_STATION,
9851 .doit = nl80211_del_station,
9852 .policy = nl80211_policy,
2ec600d6 9853 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9855 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9856 },
9857 {
9858 .cmd = NL80211_CMD_GET_MPATH,
9859 .doit = nl80211_get_mpath,
9860 .dumpit = nl80211_dump_mpath,
9861 .policy = nl80211_policy,
9862 .flags = GENL_ADMIN_PERM,
41265714 9863 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9864 NL80211_FLAG_NEED_RTNL,
2ec600d6 9865 },
66be7d2b
HR		 9866 {
9867 .cmd = NL80211_CMD_GET_MPP,
9868 .doit = nl80211_get_mpp,
9869 .dumpit = nl80211_dump_mpp,
9870 .policy = nl80211_policy,
9871 .flags = GENL_ADMIN_PERM,
9872 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9873 NL80211_FLAG_NEED_RTNL,
9874 },
2ec600d6
LCC		 9875 {
9876 .cmd = NL80211_CMD_SET_MPATH,
9877 .doit = nl80211_set_mpath,
9878 .policy = nl80211_policy,
9879 .flags = GENL_ADMIN_PERM,
41265714 9880 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9881 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9882 },
9883 {
9884 .cmd = NL80211_CMD_NEW_MPATH,
9885 .doit = nl80211_new_mpath,
9886 .policy = nl80211_policy,
9887 .flags = GENL_ADMIN_PERM,
41265714 9888 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9889 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 9890 },
9891 {
9892 .cmd = NL80211_CMD_DEL_MPATH,
9893 .doit = nl80211_del_mpath,
9894 .policy = nl80211_policy,
9f1ba906 9895 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9896 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9897 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 9898 },
9899 {
9900 .cmd = NL80211_CMD_SET_BSS,
9901 .doit = nl80211_set_bss,
9902 .policy = nl80211_policy,
b2e1b302 9903 .flags = GENL_ADMIN_PERM,
2b5f8b0b 9904 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9905 NL80211_FLAG_NEED_RTNL,
b2e1b302 9906 },
f130347c
LR		 9907 {
9908 .cmd = NL80211_CMD_GET_REG,
9909 .doit = nl80211_get_reg,
9910 .policy = nl80211_policy,
5fe231e8 9911 .internal_flags = NL80211_FLAG_NEED_RTNL,
f130347c
LR		 9912 /* can be retrieved by unprivileged users */
9913 },
b2e1b302
LR		 9914 {
9915 .cmd = NL80211_CMD_SET_REG,
9916 .doit = nl80211_set_reg,
9917 .policy = nl80211_policy,
9918 .flags = GENL_ADMIN_PERM,
5fe231e8 9919 .internal_flags = NL80211_FLAG_NEED_RTNL,
b2e1b302
LR		 9920 },
9921 {
9922 .cmd = NL80211_CMD_REQ_SET_REG,
9923 .doit = nl80211_req_set_reg,
9924 .policy = nl80211_policy,
93da9cc1 9925 .flags = GENL_ADMIN_PERM,
9926 },
9927 {
24bdd9f4
JC		 9928 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9929 .doit = nl80211_get_mesh_config,
93da9cc1 9930 .policy = nl80211_policy,
9931 /* can be retrieved by unprivileged users */
2b5f8b0b 9932 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9933 NL80211_FLAG_NEED_RTNL,
93da9cc1 9934 },
9935 {
24bdd9f4
JC		 9936 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9937 .doit = nl80211_update_mesh_config,
93da9cc1 9938 .policy = nl80211_policy,
9aed3cc1 9939 .flags = GENL_ADMIN_PERM,
29cbe68c 9940 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9941 NL80211_FLAG_NEED_RTNL,
9aed3cc1 9942 },
2a519311
JB		 9943 {
9944 .cmd = NL80211_CMD_TRIGGER_SCAN,
9945 .doit = nl80211_trigger_scan,
9946 .policy = nl80211_policy,
9947 .flags = GENL_ADMIN_PERM,
fd014284 9948 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 9949 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 9950 },
9951 {
9952 .cmd = NL80211_CMD_GET_SCAN,
9953 .policy = nl80211_policy,
9954 .dumpit = nl80211_dump_scan,
9955 },
807f8a8c
LC		 9956 {
9957 .cmd = NL80211_CMD_START_SCHED_SCAN,
9958 .doit = nl80211_start_sched_scan,
9959 .policy = nl80211_policy,
9960 .flags = GENL_ADMIN_PERM,
9961 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9962 NL80211_FLAG_NEED_RTNL,
9963 },
9964 {
9965 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9966 .doit = nl80211_stop_sched_scan,
9967 .policy = nl80211_policy,
9968 .flags = GENL_ADMIN_PERM,
9969 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9970 NL80211_FLAG_NEED_RTNL,
9971 },
636a5d36
JM		 9972 {
9973 .cmd = NL80211_CMD_AUTHENTICATE,
9974 .doit = nl80211_authenticate,
9975 .policy = nl80211_policy,
9976 .flags = GENL_ADMIN_PERM,
41265714 9977 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 9978 NL80211_FLAG_NEED_RTNL |
9979 NL80211_FLAG_CLEAR_SKB,
636a5d36
JM		 9980 },
9981 {
9982 .cmd = NL80211_CMD_ASSOCIATE,
9983 .doit = nl80211_associate,
9984 .policy = nl80211_policy,
9985 .flags = GENL_ADMIN_PERM,
41265714 9986 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9987 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9988 },
9989 {
9990 .cmd = NL80211_CMD_DEAUTHENTICATE,
9991 .doit = nl80211_deauthenticate,
9992 .policy = nl80211_policy,
9993 .flags = GENL_ADMIN_PERM,
41265714 9994 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 9995 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 9996 },
9997 {
9998 .cmd = NL80211_CMD_DISASSOCIATE,
9999 .doit = nl80211_disassociate,
10000 .policy = nl80211_policy,
10001 .flags = GENL_ADMIN_PERM,
41265714 10002 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10003 NL80211_FLAG_NEED_RTNL,
636a5d36 10004 },
04a773ad
JB		 10005 {
10006 .cmd = NL80211_CMD_JOIN_IBSS,
10007 .doit = nl80211_join_ibss,
10008 .policy = nl80211_policy,
10009 .flags = GENL_ADMIN_PERM,
41265714 10010 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10011 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 10012 },
10013 {
10014 .cmd = NL80211_CMD_LEAVE_IBSS,
10015 .doit = nl80211_leave_ibss,
10016 .policy = nl80211_policy,
10017 .flags = GENL_ADMIN_PERM,
41265714 10018 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10019 NL80211_FLAG_NEED_RTNL,
04a773ad 10020 },
aff89a9b
JB		 10021#ifdef CONFIG_NL80211_TESTMODE
10022 {
10023 .cmd = NL80211_CMD_TESTMODE,
10024 .doit = nl80211_testmode_do,
71063f0e 10025 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 10026 .policy = nl80211_policy,
10027 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10028 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10029 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 10030 },
10031#endif
b23aa676
SO		 10032 {
10033 .cmd = NL80211_CMD_CONNECT,
10034 .doit = nl80211_connect,
10035 .policy = nl80211_policy,
10036 .flags = GENL_ADMIN_PERM,
41265714 10037 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10038 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 10039 },
10040 {
10041 .cmd = NL80211_CMD_DISCONNECT,
10042 .doit = nl80211_disconnect,
10043 .policy = nl80211_policy,
10044 .flags = GENL_ADMIN_PERM,
41265714 10045 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10046 NL80211_FLAG_NEED_RTNL,
b23aa676 10047 },
463d0183
JB		 10048 {
10049 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10050 .doit = nl80211_wiphy_netns,
10051 .policy = nl80211_policy,
10052 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10053 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10054 NL80211_FLAG_NEED_RTNL,
463d0183 10055 },
61fa713c
HS		 10056 {
10057 .cmd = NL80211_CMD_GET_SURVEY,
10058 .policy = nl80211_policy,
10059 .dumpit = nl80211_dump_survey,
10060 },
67fbb16b
SO		 10061 {
10062 .cmd = NL80211_CMD_SET_PMKSA,
10063 .doit = nl80211_setdel_pmksa,
10064 .policy = nl80211_policy,
10065 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10066 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10067 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10068 },
10069 {
10070 .cmd = NL80211_CMD_DEL_PMKSA,
10071 .doit = nl80211_setdel_pmksa,
10072 .policy = nl80211_policy,
10073 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10074 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10075 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 10076 },
10077 {
10078 .cmd = NL80211_CMD_FLUSH_PMKSA,
10079 .doit = nl80211_flush_pmksa,
10080 .policy = nl80211_policy,
10081 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10082 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 10083 NL80211_FLAG_NEED_RTNL,
67fbb16b 10084 },
9588bbd5
JM		 10085 {
10086 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10087 .doit = nl80211_remain_on_channel,
10088 .policy = nl80211_policy,
10089 .flags = GENL_ADMIN_PERM,
71bbc994 10090 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10091 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 10092 },
10093 {
10094 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10095 .doit = nl80211_cancel_remain_on_channel,
10096 .policy = nl80211_policy,
10097 .flags = GENL_ADMIN_PERM,
71bbc994 10098 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10099 NL80211_FLAG_NEED_RTNL,
9588bbd5 10100 },
13ae75b1
JM		 10101 {
10102 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10103 .doit = nl80211_set_tx_bitrate_mask,
10104 .policy = nl80211_policy,
10105 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10106 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10107 NL80211_FLAG_NEED_RTNL,
13ae75b1 10108 },
026331c4 10109 {
2e161f78
JB		 10110 .cmd = NL80211_CMD_REGISTER_FRAME,
10111 .doit = nl80211_register_mgmt,
026331c4
JM		 10112 .policy = nl80211_policy,
10113 .flags = GENL_ADMIN_PERM,
71bbc994 10114 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 10115 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 10116 },
10117 {
2e161f78
JB		 10118 .cmd = NL80211_CMD_FRAME,
10119 .doit = nl80211_tx_mgmt,
026331c4 10120 .policy = nl80211_policy,
f7ca38df 10121 .flags = GENL_ADMIN_PERM,
71bbc994 10122 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 10123 NL80211_FLAG_NEED_RTNL,
10124 },
10125 {
10126 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10127 .doit = nl80211_tx_mgmt_cancel_wait,
10128 .policy = nl80211_policy,
026331c4 10129 .flags = GENL_ADMIN_PERM,
71bbc994 10130 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 10131 NL80211_FLAG_NEED_RTNL,
026331c4 10132 },
ffb9eb3d
KV		 10133 {
10134 .cmd = NL80211_CMD_SET_POWER_SAVE,
10135 .doit = nl80211_set_power_save,
10136 .policy = nl80211_policy,
10137 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10138 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10139 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 10140 },
10141 {
10142 .cmd = NL80211_CMD_GET_POWER_SAVE,
10143 .doit = nl80211_get_power_save,
10144 .policy = nl80211_policy,
10145 /* can be retrieved by unprivileged users */
4c476991
JB		 10146 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10147 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 10148 },
d6dc1a38
JO		 10149 {
10150 .cmd = NL80211_CMD_SET_CQM,
10151 .doit = nl80211_set_cqm,
10152 .policy = nl80211_policy,
10153 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10154 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10155 NL80211_FLAG_NEED_RTNL,
d6dc1a38 10156 },
f444de05
JB		 10157 {
10158 .cmd = NL80211_CMD_SET_CHANNEL,
10159 .doit = nl80211_set_channel,
10160 .policy = nl80211_policy,
10161 .flags = GENL_ADMIN_PERM,
4c476991
JB		 10162 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10163 NL80211_FLAG_NEED_RTNL,
f444de05 10164 },
e8347eba
BJ		 10165 {
10166 .cmd = NL80211_CMD_SET_WDS_PEER,
10167 .doit = nl80211_set_wds_peer,
10168 .policy = nl80211_policy,
10169 .flags = GENL_ADMIN_PERM,
43b19952
JB		 10170 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10171 NL80211_FLAG_NEED_RTNL,
e8347eba 10172 },
29cbe68c
JB		 10173 {
10174 .cmd = NL80211_CMD_JOIN_MESH,
10175 .doit = nl80211_join_mesh,
10176 .policy = nl80211_policy,
10177 .flags = GENL_ADMIN_PERM,
10178 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10179 NL80211_FLAG_NEED_RTNL,
10180 },
10181 {
10182 .cmd = NL80211_CMD_LEAVE_MESH,
10183 .doit = nl80211_leave_mesh,
10184 .policy = nl80211_policy,
10185 .flags = GENL_ADMIN_PERM,
10186 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10187 NL80211_FLAG_NEED_RTNL,
10188 },
dfb89c56 10189#ifdef CONFIG_PM
ff1b6e69
JB		 10190 {
10191 .cmd = NL80211_CMD_GET_WOWLAN,
10192 .doit = nl80211_get_wowlan,
10193 .policy = nl80211_policy,
10194 /* can be retrieved by unprivileged users */
10195 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10196 NL80211_FLAG_NEED_RTNL,
10197 },
10198 {
10199 .cmd = NL80211_CMD_SET_WOWLAN,
10200 .doit = nl80211_set_wowlan,
10201 .policy = nl80211_policy,
10202 .flags = GENL_ADMIN_PERM,
10203 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10204 NL80211_FLAG_NEED_RTNL,
10205 },
dfb89c56 10206#endif
e5497d76
JB		 10207 {
10208 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10209 .doit = nl80211_set_rekey_data,
10210 .policy = nl80211_policy,
10211 .flags = GENL_ADMIN_PERM,
10212 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5393b917
JB		 10213 NL80211_FLAG_NEED_RTNL |
10214 NL80211_FLAG_CLEAR_SKB,
e5497d76 10215 },
109086ce
AN		 10216 {
10217 .cmd = NL80211_CMD_TDLS_MGMT,
10218 .doit = nl80211_tdls_mgmt,
10219 .policy = nl80211_policy,
10220 .flags = GENL_ADMIN_PERM,
10221 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10222 NL80211_FLAG_NEED_RTNL,
10223 },
10224 {
10225 .cmd = NL80211_CMD_TDLS_OPER,
10226 .doit = nl80211_tdls_oper,
10227 .policy = nl80211_policy,
10228 .flags = GENL_ADMIN_PERM,
10229 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10230 NL80211_FLAG_NEED_RTNL,
10231 },
28946da7
JB		 10232 {
10233 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10234 .doit = nl80211_register_unexpected_frame,
10235 .policy = nl80211_policy,
10236 .flags = GENL_ADMIN_PERM,
10237 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10238 NL80211_FLAG_NEED_RTNL,
10239 },
7f6cf311
JB		 10240 {
10241 .cmd = NL80211_CMD_PROBE_CLIENT,
10242 .doit = nl80211_probe_client,
10243 .policy = nl80211_policy,
10244 .flags = GENL_ADMIN_PERM,
2b5f8b0b 10245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 10246 NL80211_FLAG_NEED_RTNL,
10247 },
5e760230
JB		 10248 {
10249 .cmd = NL80211_CMD_REGISTER_BEACONS,
10250 .doit = nl80211_register_beacons,
10251 .policy = nl80211_policy,
10252 .flags = GENL_ADMIN_PERM,
10253 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10254 NL80211_FLAG_NEED_RTNL,
10255 },
1d9d9213
SW		 10256 {
10257 .cmd = NL80211_CMD_SET_NOACK_MAP,
10258 .doit = nl80211_set_noack_map,
10259 .policy = nl80211_policy,
10260 .flags = GENL_ADMIN_PERM,
10261 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10262 NL80211_FLAG_NEED_RTNL,
10263 },
98104fde
JB		 10264 {
10265 .cmd = NL80211_CMD_START_P2P_DEVICE,
10266 .doit = nl80211_start_p2p_device,
10267 .policy = nl80211_policy,
10268 .flags = GENL_ADMIN_PERM,
10269 .internal_flags = NL80211_FLAG_NEED_WDEV |
10270 NL80211_FLAG_NEED_RTNL,
10271 },
10272 {
10273 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10274 .doit = nl80211_stop_p2p_device,
10275 .policy = nl80211_policy,
10276 .flags = GENL_ADMIN_PERM,
10277 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10278 NL80211_FLAG_NEED_RTNL,
10279 },
f4e583c8
AQ		 10280 {
10281 .cmd = NL80211_CMD_SET_MCAST_RATE,
10282 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 10283 .policy = nl80211_policy,
10284 .flags = GENL_ADMIN_PERM,
10285 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10286 NL80211_FLAG_NEED_RTNL,
10287 },
10288 {
10289 .cmd = NL80211_CMD_SET_MAC_ACL,
10290 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 10291 .policy = nl80211_policy,
10292 .flags = GENL_ADMIN_PERM,
10293 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10294 NL80211_FLAG_NEED_RTNL,
10295 },
04f39047
SW		 10296 {
10297 .cmd = NL80211_CMD_RADAR_DETECT,
10298 .doit = nl80211_start_radar_detection,
10299 .policy = nl80211_policy,
10300 .flags = GENL_ADMIN_PERM,
10301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10302 NL80211_FLAG_NEED_RTNL,
10303 },
3713b4e3
JB		 10304 {
10305 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10306 .doit = nl80211_get_protocol_features,
10307 .policy = nl80211_policy,
10308 },
355199e0
JM		 10309 {
10310 .cmd = NL80211_CMD_UPDATE_FT_IES,
10311 .doit = nl80211_update_ft_ies,
10312 .policy = nl80211_policy,
10313 .flags = GENL_ADMIN_PERM,
10314 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10315 NL80211_FLAG_NEED_RTNL,
10316 },
5de17984
AS		 10317 {
10318 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10319 .doit = nl80211_crit_protocol_start,
10320 .policy = nl80211_policy,
10321 .flags = GENL_ADMIN_PERM,
10322 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10323 NL80211_FLAG_NEED_RTNL,
10324 },
10325 {
10326 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10327 .doit = nl80211_crit_protocol_stop,
10328 .policy = nl80211_policy,
10329 .flags = GENL_ADMIN_PERM,
10330 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10331 NL80211_FLAG_NEED_RTNL,
be29b99a
AK		 10332 },
10333 {
10334 .cmd = NL80211_CMD_GET_COALESCE,
10335 .doit = nl80211_get_coalesce,
10336 .policy = nl80211_policy,
10337 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10338 NL80211_FLAG_NEED_RTNL,
10339 },
10340 {
10341 .cmd = NL80211_CMD_SET_COALESCE,
10342 .doit = nl80211_set_coalesce,
10343 .policy = nl80211_policy,
10344 .flags = GENL_ADMIN_PERM,
10345 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10346 NL80211_FLAG_NEED_RTNL,
16ef1fe2
SW		 10347 },
10348 {
10349 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10350 .doit = nl80211_channel_switch,
10351 .policy = nl80211_policy,
10352 .flags = GENL_ADMIN_PERM,
10353 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10354 NL80211_FLAG_NEED_RTNL,
10355 },
ad7e718c
JB		 10356 {
10357 .cmd = NL80211_CMD_VENDOR,
10358 .doit = nl80211_vendor_cmd,
10359 .policy = nl80211_policy,
10360 .flags = GENL_ADMIN_PERM,
10361 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10362 NL80211_FLAG_NEED_RTNL,
10363 },
fa9ffc74
KP		 10364 {
10365 .cmd = NL80211_CMD_SET_QOS_MAP,
10366 .doit = nl80211_set_qos_map,
10367 .policy = nl80211_policy,
10368 .flags = GENL_ADMIN_PERM,
10369 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10370 NL80211_FLAG_NEED_RTNL,
10371 },
960d01ac
JB		 10372 {
10373 .cmd = NL80211_CMD_ADD_TX_TS,
10374 .doit = nl80211_add_tx_ts,
10375 .policy = nl80211_policy,
10376 .flags = GENL_ADMIN_PERM,
10377 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10378 NL80211_FLAG_NEED_RTNL,
10379 },
10380 {
10381 .cmd = NL80211_CMD_DEL_TX_TS,
10382 .doit = nl80211_del_tx_ts,
10383 .policy = nl80211_policy,
10384 .flags = GENL_ADMIN_PERM,
10385 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10386 NL80211_FLAG_NEED_RTNL,
10387 },
55682965 10388};
9588bbd5 10389
55682965
JB		 10390/* notification functions */
10391
3bb20556
JB		 10392void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10393 enum nl80211_commands cmd)
55682965
JB		 10394{
10395 struct sk_buff *msg;
86e8cf98 10396 struct nl80211_dump_wiphy_state state = {};
55682965 10397
3bb20556
JB		 10398 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10399 cmd != NL80211_CMD_DEL_WIPHY);
10400
fd2120ca 10401 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 10402 if (!msg)
10403 return;
10404
3bb20556 10405 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
55682965
JB		 10406 nlmsg_free(msg);
10407 return;
10408 }
10409
68eb5503 10410 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10411 NL80211_MCGRP_CONFIG, GFP_KERNEL);
55682965
JB		 10412}
10413
362a415d
JB		 10414static int nl80211_add_scan_req(struct sk_buff *msg,
10415 struct cfg80211_registered_device *rdev)
10416{
10417 struct cfg80211_scan_request *req = rdev->scan_req;
10418 struct nlattr *nest;
10419 int i;
10420
10421 if (WARN_ON(!req))
10422 return 0;
10423
10424 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10425 if (!nest)
10426 goto nla_put_failure;
9360ffd1
DM		 10427 for (i = 0; i < req->n_ssids; i++) {
10428 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10429 goto nla_put_failure;
10430 }
362a415d
JB		 10431 nla_nest_end(msg, nest);
10432
10433 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10434 if (!nest)
10435 goto nla_put_failure;
9360ffd1
DM		 10436 for (i = 0; i < req->n_channels; i++) {
10437 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10438 goto nla_put_failure;
10439 }
362a415d
JB		 10440 nla_nest_end(msg, nest);
10441
9360ffd1
DM		 10442 if (req->ie &&
10443 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10444 goto nla_put_failure;
362a415d 10445
ae917c9f
JB		 10446 if (req->flags &&
10447 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10448 goto nla_put_failure;
ed473771 10449
362a415d
JB		 10450 return 0;
10451 nla_put_failure:
10452 return -ENOBUFS;
10453}
10454
a538e2d5
JB		 10455static int nl80211_send_scan_msg(struct sk_buff *msg,
10456 struct cfg80211_registered_device *rdev,
fd014284 10457 struct wireless_dev *wdev,
15e47304 10458 u32 portid, u32 seq, int flags,
a538e2d5 10459 u32 cmd)
2a519311
JB		 10460{
10461 void *hdr;
10462
15e47304 10463 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 10464 if (!hdr)
10465 return -1;
10466
9360ffd1 10467 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 10468 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10469 wdev->netdev->ifindex)) ||
10470 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 10471 goto nla_put_failure;
2a519311 10472
362a415d
JB		 10473 /* ignore errors and send incomplete event anyway */
10474 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 10475
10476 return genlmsg_end(msg, hdr);
10477
10478 nla_put_failure:
10479 genlmsg_cancel(msg, hdr);
10480 return -EMSGSIZE;
10481}
10482
807f8a8c
LC		 10483static int
10484nl80211_send_sched_scan_msg(struct sk_buff *msg,
10485 struct cfg80211_registered_device *rdev,
10486 struct net_device *netdev,
15e47304 10487 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 10488{
10489 void *hdr;
10490
15e47304 10491 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 10492 if (!hdr)
10493 return -1;
10494
9360ffd1
DM		 10495 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10496 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10497 goto nla_put_failure;
807f8a8c
LC		 10498
10499 return genlmsg_end(msg, hdr);
10500
10501 nla_put_failure:
10502 genlmsg_cancel(msg, hdr);
10503 return -EMSGSIZE;
10504}
10505
a538e2d5 10506void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 10507 struct wireless_dev *wdev)
a538e2d5
JB		 10508{
10509 struct sk_buff *msg;
10510
58050fce 10511 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 10512 if (!msg)
10513 return;
10514
fd014284 10515 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 10516 NL80211_CMD_TRIGGER_SCAN) < 0) {
10517 nlmsg_free(msg);
10518 return;
10519 }
10520
68eb5503 10521 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10522 NL80211_MCGRP_SCAN, GFP_KERNEL);
a538e2d5
JB		 10523}
10524
f9d15d16
JB		 10525struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10526 struct wireless_dev *wdev, bool aborted)
2a519311
JB		 10527{
10528 struct sk_buff *msg;
10529
fd2120ca 10530 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311 10531 if (!msg)
f9d15d16 10532 return NULL;
2a519311 10533
fd014284 10534 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
f9d15d16
JB		 10535 aborted ? NL80211_CMD_SCAN_ABORTED :
10536 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311 10537 nlmsg_free(msg);
f9d15d16 10538 return NULL;
2a519311
JB		 10539 }
10540
f9d15d16 10541 return msg;
2a519311
JB		 10542}
10543
f9d15d16
JB		 10544void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10545 struct sk_buff *msg)
2a519311 10546{
2a519311
JB		 10547 if (!msg)
10548 return;
10549
68eb5503 10550 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10551 NL80211_MCGRP_SCAN, GFP_KERNEL);
2a519311
JB		 10552}
10553
807f8a8c
LC		 10554void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10555 struct net_device *netdev)
10556{
10557 struct sk_buff *msg;
10558
10559 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10560 if (!msg)
10561 return;
10562
10563 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10564 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10565 nlmsg_free(msg);
10566 return;
10567 }
10568
68eb5503 10569 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10570 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10571}
10572
10573void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10574 struct net_device *netdev, u32 cmd)
10575{
10576 struct sk_buff *msg;
10577
58050fce 10578 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 10579 if (!msg)
10580 return;
10581
10582 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10583 nlmsg_free(msg);
10584 return;
10585 }
10586
68eb5503 10587 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10588 NL80211_MCGRP_SCAN, GFP_KERNEL);
807f8a8c
LC		 10589}
10590
73d54c9e
LR		 10591/*
10592 * This can happen on global regulatory changes or device specific settings
10593 * based on custom world regulatory domains.
10594 */
10595void nl80211_send_reg_change_event(struct regulatory_request *request)
10596{
10597 struct sk_buff *msg;
10598 void *hdr;
10599
fd2120ca 10600 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 10601 if (!msg)
10602 return;
10603
10604 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10605 if (!hdr) {
10606 nlmsg_free(msg);
10607 return;
10608 }
10609
10610 /* Userspace can always count this one always being set */
9360ffd1
DM		 10611 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10612 goto nla_put_failure;
10613
10614 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10615 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10616 NL80211_REGDOM_TYPE_WORLD))
10617 goto nla_put_failure;
10618 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10619 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10620 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10621 goto nla_put_failure;
10622 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10623 request->intersect) {
10624 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10625 NL80211_REGDOM_TYPE_INTERSECTION))
10626 goto nla_put_failure;
10627 } else {
10628 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10629 NL80211_REGDOM_TYPE_COUNTRY) ||
10630 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10631 request->alpha2))
10632 goto nla_put_failure;
10633 }
10634
f4173766 10635 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 10636 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10637 goto nla_put_failure;
73d54c9e 10638
3b7b72ee 10639 genlmsg_end(msg, hdr);
73d54c9e 10640
bc43b28c 10641 rcu_read_lock();
68eb5503 10642 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 10643 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
bc43b28c 10644 rcu_read_unlock();
73d54c9e
LR		 10645
10646 return;
10647
10648nla_put_failure:
10649 genlmsg_cancel(msg, hdr);
10650 nlmsg_free(msg);
10651}
10652
6039f6d2
JM		 10653static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10654 struct net_device *netdev,
10655 const u8 *buf, size_t len,
b0b6aa2c
EP		 10656 enum nl80211_commands cmd, gfp_t gfp,
10657 int uapsd_queues)
6039f6d2
JM		 10658{
10659 struct sk_buff *msg;
10660 void *hdr;
10661
e6d6e342 10662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 10663 if (!msg)
10664 return;
10665
10666 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10667 if (!hdr) {
10668 nlmsg_free(msg);
10669 return;
10670 }
10671
9360ffd1
DM		 10672 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10673 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10674 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10675 goto nla_put_failure;
6039f6d2 10676
b0b6aa2c
EP		 10677 if (uapsd_queues >= 0) {
10678 struct nlattr *nla_wmm =
10679 nla_nest_start(msg, NL80211_ATTR_STA_WME);
10680 if (!nla_wmm)
10681 goto nla_put_failure;
10682
10683 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
10684 uapsd_queues))
10685 goto nla_put_failure;
10686
10687 nla_nest_end(msg, nla_wmm);
10688 }
10689
3b7b72ee 10690 genlmsg_end(msg, hdr);
6039f6d2 10691
68eb5503 10692 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10693 NL80211_MCGRP_MLME, gfp);
6039f6d2
JM		 10694 return;
10695
10696 nla_put_failure:
10697 genlmsg_cancel(msg, hdr);
10698 nlmsg_free(msg);
10699}
10700
10701void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10702 struct net_device *netdev, const u8 *buf,
10703 size_t len, gfp_t gfp)
6039f6d2
JM		 10704{
10705 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10706 NL80211_CMD_AUTHENTICATE, gfp, -1);
6039f6d2
JM		 10707}
10708
10709void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10710 struct net_device *netdev, const u8 *buf,
b0b6aa2c 10711 size_t len, gfp_t gfp, int uapsd_queues)
6039f6d2 10712{
e6d6e342 10713 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10714 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
6039f6d2
JM		 10715}
10716
53b46b84 10717void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10718 struct net_device *netdev, const u8 *buf,
10719 size_t len, gfp_t gfp)
6039f6d2
JM		 10720{
10721 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10722 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
6039f6d2
JM		 10723}
10724
53b46b84
JM		 10725void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10726 struct net_device *netdev, const u8 *buf,
e6d6e342 10727 size_t len, gfp_t gfp)
6039f6d2
JM		 10728{
10729 nl80211_send_mlme_event(rdev, netdev, buf, len,
b0b6aa2c 10730 NL80211_CMD_DISASSOCIATE, gfp, -1);
6039f6d2
JM		 10731}
10732
6ff57cf8
JB		 10733void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10734 size_t len)
cf4e594e 10735{
947add36
JB		 10736 struct wireless_dev *wdev = dev->ieee80211_ptr;
10737 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 10738 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6ff57cf8
JB		 10739 const struct ieee80211_mgmt *mgmt = (void *)buf;
10740 u32 cmd;
947add36 10741
6ff57cf8
JB		 10742 if (WARN_ON(len < 2))
10743 return;
cf4e594e 10744
6ff57cf8
JB		 10745 if (ieee80211_is_deauth(mgmt->frame_control))
10746 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10747 else
10748 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
947add36 10749
6ff57cf8 10750 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
b0b6aa2c 10751 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
cf4e594e 10752}
6ff57cf8 10753EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
cf4e594e 10754
1b06bb40
LR		 10755static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10756 struct net_device *netdev, int cmd,
e6d6e342 10757 const u8 *addr, gfp_t gfp)
1965c853
JM		 10758{
10759 struct sk_buff *msg;
10760 void *hdr;
10761
e6d6e342 10762 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 10763 if (!msg)
10764 return;
10765
10766 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10767 if (!hdr) {
10768 nlmsg_free(msg);
10769 return;
10770 }
10771
9360ffd1
DM		 10772 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10773 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10774 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10775 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10776 goto nla_put_failure;
1965c853 10777
3b7b72ee 10778 genlmsg_end(msg, hdr);
1965c853 10779
68eb5503 10780 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10781 NL80211_MCGRP_MLME, gfp);
1965c853
JM		 10782 return;
10783
10784 nla_put_failure:
10785 genlmsg_cancel(msg, hdr);
10786 nlmsg_free(msg);
10787}
10788
10789void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10790 struct net_device *netdev, const u8 *addr,
10791 gfp_t gfp)
1965c853
JM		 10792{
10793 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 10794 addr, gfp);
1965c853
JM		 10795}
10796
10797void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 10798 struct net_device *netdev, const u8 *addr,
10799 gfp_t gfp)
1965c853 10800{
e6d6e342
JB		 10801 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10802 addr, gfp);
1965c853
JM		 10803}
10804
b23aa676
SO		 10805void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10806 struct net_device *netdev, const u8 *bssid,
10807 const u8 *req_ie, size_t req_ie_len,
10808 const u8 *resp_ie, size_t resp_ie_len,
10809 u16 status, gfp_t gfp)
10810{
10811 struct sk_buff *msg;
10812 void *hdr;
10813
58050fce 10814 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10815 if (!msg)
10816 return;
10817
10818 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10819 if (!hdr) {
10820 nlmsg_free(msg);
10821 return;
10822 }
10823
9360ffd1
DM		 10824 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10825 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10826 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10827 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10828 (req_ie &&
10829 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10830 (resp_ie &&
10831 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10832 goto nla_put_failure;
b23aa676 10833
3b7b72ee 10834 genlmsg_end(msg, hdr);
b23aa676 10835
68eb5503 10836 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10837 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10838 return;
10839
10840 nla_put_failure:
10841 genlmsg_cancel(msg, hdr);
10842 nlmsg_free(msg);
10843
10844}
10845
10846void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10847 struct net_device *netdev, const u8 *bssid,
10848 const u8 *req_ie, size_t req_ie_len,
10849 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10850{
10851 struct sk_buff *msg;
10852 void *hdr;
10853
58050fce 10854 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 10855 if (!msg)
10856 return;
10857
10858 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10859 if (!hdr) {
10860 nlmsg_free(msg);
10861 return;
10862 }
10863
9360ffd1
DM		 10864 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10865 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10866 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10867 (req_ie &&
10868 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10869 (resp_ie &&
10870 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10871 goto nla_put_failure;
b23aa676 10872
3b7b72ee 10873 genlmsg_end(msg, hdr);
b23aa676 10874
68eb5503 10875 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10876 NL80211_MCGRP_MLME, gfp);
b23aa676
SO		 10877 return;
10878
10879 nla_put_failure:
10880 genlmsg_cancel(msg, hdr);
10881 nlmsg_free(msg);
10882
10883}
10884
10885void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10886 struct net_device *netdev, u16 reason,
667503dd 10887 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 10888{
10889 struct sk_buff *msg;
10890 void *hdr;
10891
58050fce 10892 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 10893 if (!msg)
10894 return;
10895
10896 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10897 if (!hdr) {
10898 nlmsg_free(msg);
10899 return;
10900 }
10901
9360ffd1
DM		 10902 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10903 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10904 (from_ap && reason &&
10905 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10906 (from_ap &&
10907 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10908 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10909 goto nla_put_failure;
b23aa676 10910
3b7b72ee 10911 genlmsg_end(msg, hdr);
b23aa676 10912
68eb5503 10913 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10914 NL80211_MCGRP_MLME, GFP_KERNEL);
b23aa676
SO		 10915 return;
10916
10917 nla_put_failure:
10918 genlmsg_cancel(msg, hdr);
10919 nlmsg_free(msg);
10920
10921}
10922
04a773ad
JB		 10923void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10924 struct net_device *netdev, const u8 *bssid,
10925 gfp_t gfp)
10926{
10927 struct sk_buff *msg;
10928 void *hdr;
10929
fd2120ca 10930 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 10931 if (!msg)
10932 return;
10933
10934 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10935 if (!hdr) {
10936 nlmsg_free(msg);
10937 return;
10938 }
10939
9360ffd1
DM		 10940 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10941 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10942 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10943 goto nla_put_failure;
04a773ad 10944
3b7b72ee 10945 genlmsg_end(msg, hdr);
04a773ad 10946
68eb5503 10947 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10948 NL80211_MCGRP_MLME, gfp);
04a773ad
JB		 10949 return;
10950
10951 nla_put_failure:
10952 genlmsg_cancel(msg, hdr);
10953 nlmsg_free(msg);
10954}
10955
947add36
JB		 10956void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10957 const u8* ie, u8 ie_len, gfp_t gfp)
c93b5e71 10958{
947add36 10959 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 10960 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
c93b5e71
JC		 10961 struct sk_buff *msg;
10962 void *hdr;
10963
947add36
JB		 10964 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10965 return;
10966
10967 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10968
c93b5e71
JC		 10969 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10970 if (!msg)
10971 return;
10972
10973 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10974 if (!hdr) {
10975 nlmsg_free(msg);
10976 return;
10977 }
10978
9360ffd1 10979 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36
JB		 10980 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10981 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9360ffd1
DM		 10982 (ie_len && ie &&
10983 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10984 goto nla_put_failure;
c93b5e71 10985
3b7b72ee 10986 genlmsg_end(msg, hdr);
c93b5e71 10987
68eb5503 10988 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 10989 NL80211_MCGRP_MLME, gfp);
c93b5e71
JC		 10990 return;
10991
10992 nla_put_failure:
10993 genlmsg_cancel(msg, hdr);
10994 nlmsg_free(msg);
10995}
947add36 10996EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
c93b5e71 10997
a3b8b056
JM		 10998void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10999 struct net_device *netdev, const u8 *addr,
11000 enum nl80211_key_type key_type, int key_id,
e6d6e342 11001 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 11002{
11003 struct sk_buff *msg;
11004 void *hdr;
11005
e6d6e342 11006 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 11007 if (!msg)
11008 return;
11009
11010 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11011 if (!hdr) {
11012 nlmsg_free(msg);
11013 return;
11014 }
11015
9360ffd1
DM		 11016 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11017 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11018 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11019 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11020 (key_id != -1 &&
11021 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11022 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11023 goto nla_put_failure;
a3b8b056 11024
3b7b72ee 11025 genlmsg_end(msg, hdr);
a3b8b056 11026
68eb5503 11027 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11028 NL80211_MCGRP_MLME, gfp);
a3b8b056
JM		 11029 return;
11030
11031 nla_put_failure:
11032 genlmsg_cancel(msg, hdr);
11033 nlmsg_free(msg);
11034}
11035
6bad8766
LR		 11036void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11037 struct ieee80211_channel *channel_before,
11038 struct ieee80211_channel *channel_after)
11039{
11040 struct sk_buff *msg;
11041 void *hdr;
11042 struct nlattr *nl_freq;
11043
fd2120ca 11044 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 11045 if (!msg)
11046 return;
11047
11048 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11049 if (!hdr) {
11050 nlmsg_free(msg);
11051 return;
11052 }
11053
11054 /*
11055 * Since we are applying the beacon hint to a wiphy we know its
11056 * wiphy_idx is valid
11057 */
9360ffd1
DM		 11058 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11059 goto nla_put_failure;
6bad8766
LR		 11060
11061 /* Before */
11062 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11063 if (!nl_freq)
11064 goto nla_put_failure;
cdc89b97 11065 if (nl80211_msg_put_channel(msg, channel_before, false))
6bad8766
LR		 11066 goto nla_put_failure;
11067 nla_nest_end(msg, nl_freq);
11068
11069 /* After */
11070 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11071 if (!nl_freq)
11072 goto nla_put_failure;
cdc89b97 11073 if (nl80211_msg_put_channel(msg, channel_after, false))
6bad8766
LR		 11074 goto nla_put_failure;
11075 nla_nest_end(msg, nl_freq);
11076
3b7b72ee 11077 genlmsg_end(msg, hdr);
6bad8766 11078
463d0183 11079 rcu_read_lock();
68eb5503 11080 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
2a94fe48 11081 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
463d0183 11082 rcu_read_unlock();
6bad8766
LR		 11083
11084 return;
11085
11086nla_put_failure:
11087 genlmsg_cancel(msg, hdr);
11088 nlmsg_free(msg);
11089}
11090
9588bbd5
JM		 11091static void nl80211_send_remain_on_chan_event(
11092 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 11093 struct wireless_dev *wdev, u64 cookie,
9588bbd5 11094 struct ieee80211_channel *chan,
9588bbd5
JM		 11095 unsigned int duration, gfp_t gfp)
11096{
11097 struct sk_buff *msg;
11098 void *hdr;
11099
11100 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11101 if (!msg)
11102 return;
11103
11104 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11105 if (!hdr) {
11106 nlmsg_free(msg);
11107 return;
11108 }
11109
9360ffd1 11110 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11111 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11112 wdev->netdev->ifindex)) ||
00f53350 11113 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 11114 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 11115 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11116 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 11117 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11118 goto nla_put_failure;
9588bbd5 11119
9360ffd1
DM		 11120 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11121 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11122 goto nla_put_failure;
9588bbd5 11123
3b7b72ee 11124 genlmsg_end(msg, hdr);
9588bbd5 11125
68eb5503 11126 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11127 NL80211_MCGRP_MLME, gfp);
9588bbd5
JM		 11128 return;
11129
11130 nla_put_failure:
11131 genlmsg_cancel(msg, hdr);
11132 nlmsg_free(msg);
11133}
11134
947add36
JB		 11135void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11136 struct ieee80211_channel *chan,
11137 unsigned int duration, gfp_t gfp)
9588bbd5 11138{
947add36 11139 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11140 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11141
11142 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9588bbd5 11143 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 11144 rdev, wdev, cookie, chan,
42d97a59 11145 duration, gfp);
9588bbd5 11146}
947add36 11147EXPORT_SYMBOL(cfg80211_ready_on_channel);
9588bbd5 11148
947add36
JB		 11149void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11150 struct ieee80211_channel *chan,
11151 gfp_t gfp)
9588bbd5 11152{
947add36 11153 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11154 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11155
11156 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9588bbd5 11157 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 11158 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5 11159}
947add36 11160EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9588bbd5 11161
947add36
JB		 11162void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11163 struct station_info *sinfo, gfp_t gfp)
98b62183 11164{
947add36 11165 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11166 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
98b62183
JB		 11167 struct sk_buff *msg;
11168
947add36
JB		 11169 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11170
58050fce 11171 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 11172 if (!msg)
11173 return;
11174
66266b3a
JL		 11175 if (nl80211_send_station(msg, 0, 0, 0,
11176 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 11177 nlmsg_free(msg);
11178 return;
11179 }
11180
68eb5503 11181 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11182 NL80211_MCGRP_MLME, gfp);
98b62183 11183}
947add36 11184EXPORT_SYMBOL(cfg80211_new_sta);
98b62183 11185
947add36 11186void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
ec15e68b 11187{
947add36 11188 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11189 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ec15e68b
JM		 11190 struct sk_buff *msg;
11191 void *hdr;
11192
947add36
JB		 11193 trace_cfg80211_del_sta(dev, mac_addr);
11194
58050fce 11195 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 11196 if (!msg)
11197 return;
11198
11199 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11200 if (!hdr) {
11201 nlmsg_free(msg);
11202 return;
11203 }
11204
9360ffd1
DM		 11205 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11206 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11207 goto nla_put_failure;
ec15e68b 11208
3b7b72ee 11209 genlmsg_end(msg, hdr);
ec15e68b 11210
68eb5503 11211 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11212 NL80211_MCGRP_MLME, gfp);
ec15e68b
JM		 11213 return;
11214
11215 nla_put_failure:
11216 genlmsg_cancel(msg, hdr);
11217 nlmsg_free(msg);
11218}
947add36 11219EXPORT_SYMBOL(cfg80211_del_sta);
ec15e68b 11220
947add36
JB		 11221void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11222 enum nl80211_connect_failed_reason reason,
11223 gfp_t gfp)
ed44a951 11224{
947add36 11225 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
f26cbf40 11226 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
ed44a951
PP		 11227 struct sk_buff *msg;
11228 void *hdr;
11229
11230 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11231 if (!msg)
11232 return;
11233
11234 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11235 if (!hdr) {
11236 nlmsg_free(msg);
11237 return;
11238 }
11239
11240 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11241 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11242 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11243 goto nla_put_failure;
11244
11245 genlmsg_end(msg, hdr);
11246
68eb5503 11247 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11248 NL80211_MCGRP_MLME, gfp);
ed44a951
PP		 11249 return;
11250
11251 nla_put_failure:
11252 genlmsg_cancel(msg, hdr);
11253 nlmsg_free(msg);
11254}
947add36 11255EXPORT_SYMBOL(cfg80211_conn_failed);
ed44a951 11256
b92ab5d8
JB		 11257static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11258 const u8 *addr, gfp_t gfp)
28946da7
JB		 11259{
11260 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11261 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
28946da7
JB		 11262 struct sk_buff *msg;
11263 void *hdr;
15e47304 11264 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 11265
15e47304 11266 if (!nlportid)
28946da7
JB		 11267 return false;
11268
11269 msg = nlmsg_new(100, gfp);
11270 if (!msg)
11271 return true;
11272
b92ab5d8 11273 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 11274 if (!hdr) {
11275 nlmsg_free(msg);
11276 return true;
11277 }
11278
9360ffd1
DM		 11279 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11280 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11281 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11282 goto nla_put_failure;
28946da7 11283
9c90a9f6 11284 genlmsg_end(msg, hdr);
15e47304 11285 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 11286 return true;
11287
11288 nla_put_failure:
11289 genlmsg_cancel(msg, hdr);
11290 nlmsg_free(msg);
11291 return true;
11292}
11293
947add36
JB		 11294bool cfg80211_rx_spurious_frame(struct net_device *dev,
11295 const u8 *addr, gfp_t gfp)
b92ab5d8 11296{
947add36
JB		 11297 struct wireless_dev *wdev = dev->ieee80211_ptr;
11298 bool ret;
11299
11300 trace_cfg80211_rx_spurious_frame(dev, addr);
11301
11302 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11303 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11304 trace_cfg80211_return_bool(false);
11305 return false;
11306 }
11307 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11308 addr, gfp);
11309 trace_cfg80211_return_bool(ret);
11310 return ret;
b92ab5d8 11311}
947add36 11312EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
b92ab5d8 11313
947add36
JB		 11314bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11315 const u8 *addr, gfp_t gfp)
b92ab5d8 11316{
947add36
JB		 11317 struct wireless_dev *wdev = dev->ieee80211_ptr;
11318 bool ret;
11319
11320 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11321
11322 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11323 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11324 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11325 trace_cfg80211_return_bool(false);
11326 return false;
11327 }
11328 ret = __nl80211_unexpected_frame(dev,
11329 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11330 addr, gfp);
11331 trace_cfg80211_return_bool(ret);
11332 return ret;
b92ab5d8 11333}
947add36 11334EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
b92ab5d8 11335
2e161f78 11336int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 11337 struct wireless_dev *wdev, u32 nlportid,
804483e9 11338 int freq, int sig_dbm,
19504cf5 11339 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
026331c4 11340{
71bbc994 11341 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11342 struct sk_buff *msg;
11343 void *hdr;
026331c4
JM		 11344
11345 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11346 if (!msg)
11347 return -ENOMEM;
11348
2e161f78 11349 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 11350 if (!hdr) {
11351 nlmsg_free(msg);
11352 return -ENOMEM;
11353 }
11354
9360ffd1 11355 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11356 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11357 netdev->ifindex)) ||
a838490b 11358 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11359 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11360 (sig_dbm &&
11361 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
19504cf5
VK		 11362 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11363 (flags &&
11364 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
9360ffd1 11365 goto nla_put_failure;
026331c4 11366
3b7b72ee 11367 genlmsg_end(msg, hdr);
026331c4 11368
15e47304 11369 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 11370
11371 nla_put_failure:
11372 genlmsg_cancel(msg, hdr);
11373 nlmsg_free(msg);
11374 return -ENOBUFS;
11375}
11376
947add36
JB		 11377void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11378 const u8 *buf, size_t len, bool ack, gfp_t gfp)
026331c4 11379{
947add36 11380 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11381 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
71bbc994 11382 struct net_device *netdev = wdev->netdev;
026331c4
JM		 11383 struct sk_buff *msg;
11384 void *hdr;
11385
947add36
JB		 11386 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11387
026331c4
JM		 11388 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11389 if (!msg)
11390 return;
11391
2e161f78 11392 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 11393 if (!hdr) {
11394 nlmsg_free(msg);
11395 return;
11396 }
11397
9360ffd1 11398 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 11399 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11400 netdev->ifindex)) ||
a838490b 11401 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 11402 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11403 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11404 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11405 goto nla_put_failure;
026331c4 11406
3b7b72ee 11407 genlmsg_end(msg, hdr);
026331c4 11408
68eb5503 11409 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11410 NL80211_MCGRP_MLME, gfp);
026331c4
JM		 11411 return;
11412
11413 nla_put_failure:
11414 genlmsg_cancel(msg, hdr);
11415 nlmsg_free(msg);
11416}
947add36 11417EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
026331c4 11418
947add36
JB		 11419void cfg80211_cqm_rssi_notify(struct net_device *dev,
11420 enum nl80211_cqm_rssi_threshold_event rssi_event,
11421 gfp_t gfp)
d6dc1a38 11422{
947add36
JB		 11423 struct wireless_dev *wdev = dev->ieee80211_ptr;
11424 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11425 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
d6dc1a38
JO		 11426 struct sk_buff *msg;
11427 struct nlattr *pinfoattr;
11428 void *hdr;
11429
947add36
JB		 11430 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11431
58050fce 11432 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 11433 if (!msg)
11434 return;
11435
11436 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11437 if (!hdr) {
11438 nlmsg_free(msg);
11439 return;
11440 }
11441
9360ffd1 11442 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11443 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
9360ffd1 11444 goto nla_put_failure;
d6dc1a38
JO		 11445
11446 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11447 if (!pinfoattr)
11448 goto nla_put_failure;
11449
9360ffd1
DM		 11450 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11451 rssi_event))
11452 goto nla_put_failure;
d6dc1a38
JO		 11453
11454 nla_nest_end(msg, pinfoattr);
11455
3b7b72ee 11456 genlmsg_end(msg, hdr);
d6dc1a38 11457
68eb5503 11458 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11459 NL80211_MCGRP_MLME, gfp);
d6dc1a38
JO		 11460 return;
11461
11462 nla_put_failure:
11463 genlmsg_cancel(msg, hdr);
11464 nlmsg_free(msg);
11465}
947add36 11466EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
d6dc1a38 11467
947add36
JB		 11468static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11469 struct net_device *netdev, const u8 *bssid,
11470 const u8 *replay_ctr, gfp_t gfp)
e5497d76
JB		 11471{
11472 struct sk_buff *msg;
11473 struct nlattr *rekey_attr;
11474 void *hdr;
11475
58050fce 11476 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 11477 if (!msg)
11478 return;
11479
11480 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11481 if (!hdr) {
11482 nlmsg_free(msg);
11483 return;
11484 }
11485
9360ffd1
DM		 11486 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11487 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11488 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11489 goto nla_put_failure;
e5497d76
JB		 11490
11491 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11492 if (!rekey_attr)
11493 goto nla_put_failure;
11494
9360ffd1
DM		 11495 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11496 NL80211_REPLAY_CTR_LEN, replay_ctr))
11497 goto nla_put_failure;
e5497d76
JB		 11498
11499 nla_nest_end(msg, rekey_attr);
11500
3b7b72ee 11501 genlmsg_end(msg, hdr);
e5497d76 11502
68eb5503 11503 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11504 NL80211_MCGRP_MLME, gfp);
e5497d76
JB		 11505 return;
11506
11507 nla_put_failure:
11508 genlmsg_cancel(msg, hdr);
11509 nlmsg_free(msg);
11510}
11511
947add36
JB		 11512void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11513 const u8 *replay_ctr, gfp_t gfp)
11514{
11515 struct wireless_dev *wdev = dev->ieee80211_ptr;
11516 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11517 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11518
11519 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11520 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11521}
11522EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11523
11524static void
11525nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11526 struct net_device *netdev, int index,
11527 const u8 *bssid, bool preauth, gfp_t gfp)
c9df56b4
JM		 11528{
11529 struct sk_buff *msg;
11530 struct nlattr *attr;
11531 void *hdr;
11532
58050fce 11533 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 11534 if (!msg)
11535 return;
11536
11537 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11538 if (!hdr) {
11539 nlmsg_free(msg);
11540 return;
11541 }
11542
9360ffd1
DM		 11543 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11544 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11545 goto nla_put_failure;
c9df56b4
JM		 11546
11547 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11548 if (!attr)
11549 goto nla_put_failure;
11550
9360ffd1
DM		 11551 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11552 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11553 (preauth &&
11554 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11555 goto nla_put_failure;
c9df56b4
JM		 11556
11557 nla_nest_end(msg, attr);
11558
3b7b72ee 11559 genlmsg_end(msg, hdr);
c9df56b4 11560
68eb5503 11561 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11562 NL80211_MCGRP_MLME, gfp);
c9df56b4
JM		 11563 return;
11564
11565 nla_put_failure:
11566 genlmsg_cancel(msg, hdr);
11567 nlmsg_free(msg);
11568}
11569
947add36
JB		 11570void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11571 const u8 *bssid, bool preauth, gfp_t gfp)
11572{
11573 struct wireless_dev *wdev = dev->ieee80211_ptr;
11574 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11575 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36
JB		 11576
11577 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11578 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11579}
11580EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11581
11582static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11583 struct net_device *netdev,
11584 struct cfg80211_chan_def *chandef,
11585 gfp_t gfp)
5314526b
TP		 11586{
11587 struct sk_buff *msg;
11588 void *hdr;
11589
58050fce 11590 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 11591 if (!msg)
11592 return;
11593
11594 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11595 if (!hdr) {
11596 nlmsg_free(msg);
11597 return;
11598 }
11599
683b6d3b
JB		 11600 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11601 goto nla_put_failure;
11602
11603 if (nl80211_send_chandef(msg, chandef))
7eab0f64 11604 goto nla_put_failure;
5314526b
TP		 11605
11606 genlmsg_end(msg, hdr);
11607
68eb5503 11608 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11609 NL80211_MCGRP_MLME, gfp);
5314526b
TP		 11610 return;
11611
11612 nla_put_failure:
11613 genlmsg_cancel(msg, hdr);
11614 nlmsg_free(msg);
11615}
11616
947add36
JB		 11617void cfg80211_ch_switch_notify(struct net_device *dev,
11618 struct cfg80211_chan_def *chandef)
84f10708 11619{
947add36
JB		 11620 struct wireless_dev *wdev = dev->ieee80211_ptr;
11621 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11622 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
947add36 11623
e487eaeb 11624 ASSERT_WDEV_LOCK(wdev);
947add36 11625
e487eaeb 11626 trace_cfg80211_ch_switch_notify(dev, chandef);
947add36
JB		 11627
11628 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
ee4bc9e7 11629 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
b8456a14
CYY		 11630 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11631 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
e487eaeb 11632 return;
947add36 11633
9e0e2961 11634 wdev->chandef = *chandef;
96f55f12 11635 wdev->preset_chandef = *chandef;
947add36 11636 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
947add36
JB		 11637}
11638EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11639
11640void cfg80211_cqm_txe_notify(struct net_device *dev,
11641 const u8 *peer, u32 num_packets,
11642 u32 rate, u32 intvl, gfp_t gfp)
11643{
11644 struct wireless_dev *wdev = dev->ieee80211_ptr;
11645 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11646 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
84f10708
TP		 11647 struct sk_buff *msg;
11648 struct nlattr *pinfoattr;
11649 void *hdr;
11650
11651 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11652 if (!msg)
11653 return;
11654
11655 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11656 if (!hdr) {
11657 nlmsg_free(msg);
11658 return;
11659 }
11660
11661 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11662 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
84f10708
TP		 11663 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11664 goto nla_put_failure;
11665
11666 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11667 if (!pinfoattr)
11668 goto nla_put_failure;
11669
11670 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11671 goto nla_put_failure;
11672
11673 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11674 goto nla_put_failure;
11675
11676 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11677 goto nla_put_failure;
11678
11679 nla_nest_end(msg, pinfoattr);
11680
11681 genlmsg_end(msg, hdr);
11682
68eb5503 11683 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11684 NL80211_MCGRP_MLME, gfp);
84f10708
TP		 11685 return;
11686
11687 nla_put_failure:
11688 genlmsg_cancel(msg, hdr);
11689 nlmsg_free(msg);
11690}
947add36 11691EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
84f10708 11692
04f39047
SW		 11693void
11694nl80211_radar_notify(struct cfg80211_registered_device *rdev,
d2859df5 11695 const struct cfg80211_chan_def *chandef,
04f39047
SW		 11696 enum nl80211_radar_event event,
11697 struct net_device *netdev, gfp_t gfp)
11698{
11699 struct sk_buff *msg;
11700 void *hdr;
11701
11702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11703 if (!msg)
11704 return;
11705
11706 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11707 if (!hdr) {
11708 nlmsg_free(msg);
11709 return;
11710 }
11711
11712 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11713 goto nla_put_failure;
11714
11715 /* NOP and radar events don't need a netdev parameter */
11716 if (netdev) {
11717 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11718
11719 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11720 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11721 goto nla_put_failure;
11722 }
11723
11724 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11725 goto nla_put_failure;
11726
11727 if (nl80211_send_chandef(msg, chandef))
11728 goto nla_put_failure;
11729
9c90a9f6 11730 genlmsg_end(msg, hdr);
04f39047 11731
68eb5503 11732 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11733 NL80211_MCGRP_MLME, gfp);
04f39047
SW		 11734 return;
11735
11736 nla_put_failure:
11737 genlmsg_cancel(msg, hdr);
11738 nlmsg_free(msg);
11739}
11740
947add36
JB		 11741void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11742 const u8 *peer, u32 num_packets, gfp_t gfp)
c063dbf5 11743{
947add36
JB		 11744 struct wireless_dev *wdev = dev->ieee80211_ptr;
11745 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 11746 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
c063dbf5
JB		 11747 struct sk_buff *msg;
11748 struct nlattr *pinfoattr;
11749 void *hdr;
11750
947add36
JB		 11751 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11752
58050fce 11753 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 11754 if (!msg)
11755 return;
11756
11757 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11758 if (!hdr) {
11759 nlmsg_free(msg);
11760 return;
11761 }
11762
9360ffd1 11763 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
947add36 11764 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9360ffd1
DM		 11765 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11766 goto nla_put_failure;
c063dbf5
JB		 11767
11768 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11769 if (!pinfoattr)
11770 goto nla_put_failure;
11771
9360ffd1
DM		 11772 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11773 goto nla_put_failure;
c063dbf5
JB		 11774
11775 nla_nest_end(msg, pinfoattr);
11776
3b7b72ee 11777 genlmsg_end(msg, hdr);
c063dbf5 11778
68eb5503 11779 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11780 NL80211_MCGRP_MLME, gfp);
c063dbf5
JB		 11781 return;
11782
11783 nla_put_failure:
11784 genlmsg_cancel(msg, hdr);
11785 nlmsg_free(msg);
11786}
947add36 11787EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
c063dbf5 11788
7f6cf311
JB		 11789void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11790 u64 cookie, bool acked, gfp_t gfp)
11791{
11792 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11793 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
7f6cf311
JB		 11794 struct sk_buff *msg;
11795 void *hdr;
7f6cf311 11796
4ee3e063
BL		 11797 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11798
58050fce 11799 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 11800
7f6cf311
JB		 11801 if (!msg)
11802 return;
11803
11804 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11805 if (!hdr) {
11806 nlmsg_free(msg);
11807 return;
11808 }
11809
9360ffd1
DM		 11810 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11811 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11812 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11813 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11814 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11815 goto nla_put_failure;
7f6cf311 11816
9c90a9f6 11817 genlmsg_end(msg, hdr);
7f6cf311 11818
68eb5503 11819 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11820 NL80211_MCGRP_MLME, gfp);
7f6cf311
JB		 11821 return;
11822
11823 nla_put_failure:
11824 genlmsg_cancel(msg, hdr);
11825 nlmsg_free(msg);
11826}
11827EXPORT_SYMBOL(cfg80211_probe_status);
11828
5e760230
JB		 11829void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11830 const u8 *frame, size_t len,
37c73b5f 11831 int freq, int sig_dbm)
5e760230 11832{
f26cbf40 11833 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
5e760230
JB		 11834 struct sk_buff *msg;
11835 void *hdr;
37c73b5f 11836 struct cfg80211_beacon_registration *reg;
5e760230 11837
4ee3e063
BL		 11838 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11839
37c73b5f
BG		 11840 spin_lock_bh(&rdev->beacon_registrations_lock);
11841 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11842 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11843 if (!msg) {
11844 spin_unlock_bh(&rdev->beacon_registrations_lock);
11845 return;
11846 }
5e760230 11847
37c73b5f
BG		 11848 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11849 if (!hdr)
11850 goto nla_put_failure;
5e760230 11851
37c73b5f
BG		 11852 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11853 (freq &&
11854 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11855 (sig_dbm &&
11856 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11857 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11858 goto nla_put_failure;
5e760230 11859
37c73b5f 11860 genlmsg_end(msg, hdr);
5e760230 11861
37c73b5f
BG		 11862 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11863 }
11864 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 11865 return;
11866
11867 nla_put_failure:
37c73b5f
BG		 11868 spin_unlock_bh(&rdev->beacon_registrations_lock);
11869 if (hdr)
11870 genlmsg_cancel(msg, hdr);
5e760230
JB		 11871 nlmsg_free(msg);
11872}
11873EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11874
cd8f7cb4
JB		 11875#ifdef CONFIG_PM
11876void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11877 struct cfg80211_wowlan_wakeup *wakeup,
11878 gfp_t gfp)
11879{
f26cbf40 11880 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
cd8f7cb4
JB		 11881 struct sk_buff *msg;
11882 void *hdr;
9c90a9f6 11883 int size = 200;
cd8f7cb4
JB		 11884
11885 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11886
11887 if (wakeup)
11888 size += wakeup->packet_present_len;
11889
11890 msg = nlmsg_new(size, gfp);
11891 if (!msg)
11892 return;
11893
11894 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11895 if (!hdr)
11896 goto free_msg;
11897
11898 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11899 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11900 goto free_msg;
11901
11902 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11903 wdev->netdev->ifindex))
11904 goto free_msg;
11905
11906 if (wakeup) {
11907 struct nlattr *reasons;
11908
11909 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7fa322c8
JB		 11910 if (!reasons)
11911 goto free_msg;
cd8f7cb4
JB		 11912
11913 if (wakeup->disconnect &&
11914 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11915 goto free_msg;
11916 if (wakeup->magic_pkt &&
11917 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11918 goto free_msg;
11919 if (wakeup->gtk_rekey_failure &&
11920 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11921 goto free_msg;
11922 if (wakeup->eap_identity_req &&
11923 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11924 goto free_msg;
11925 if (wakeup->four_way_handshake &&
11926 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11927 goto free_msg;
11928 if (wakeup->rfkill_release &&
11929 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11930 goto free_msg;
11931
11932 if (wakeup->pattern_idx >= 0 &&
11933 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11934 wakeup->pattern_idx))
11935 goto free_msg;
11936
ae917c9f
JB		 11937 if (wakeup->tcp_match &&
11938 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11939 goto free_msg;
2a0e047e 11940
ae917c9f
JB		 11941 if (wakeup->tcp_connlost &&
11942 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11943 goto free_msg;
2a0e047e 11944
ae917c9f
JB		 11945 if (wakeup->tcp_nomoretokens &&
11946 nla_put_flag(msg,
11947 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11948 goto free_msg;
2a0e047e 11949
cd8f7cb4
JB		 11950 if (wakeup->packet) {
11951 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11952 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11953
11954 if (!wakeup->packet_80211) {
11955 pkt_attr =
11956 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11957 len_attr =
11958 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11959 }
11960
11961 if (wakeup->packet_len &&
11962 nla_put_u32(msg, len_attr, wakeup->packet_len))
11963 goto free_msg;
11964
11965 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11966 wakeup->packet))
11967 goto free_msg;
11968 }
11969
11970 nla_nest_end(msg, reasons);
11971 }
11972
9c90a9f6 11973 genlmsg_end(msg, hdr);
cd8f7cb4 11974
68eb5503 11975 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 11976 NL80211_MCGRP_MLME, gfp);
cd8f7cb4
JB		 11977 return;
11978
11979 free_msg:
11980 nlmsg_free(msg);
11981}
11982EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11983#endif
11984
3475b094
JM		 11985void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11986 enum nl80211_tdls_operation oper,
11987 u16 reason_code, gfp_t gfp)
11988{
11989 struct wireless_dev *wdev = dev->ieee80211_ptr;
f26cbf40 11990 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
3475b094
JM		 11991 struct sk_buff *msg;
11992 void *hdr;
3475b094
JM		 11993
11994 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11995 reason_code);
11996
11997 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11998 if (!msg)
11999 return;
12000
12001 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12002 if (!hdr) {
12003 nlmsg_free(msg);
12004 return;
12005 }
12006
12007 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12008 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12009 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12010 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12011 (reason_code > 0 &&
12012 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12013 goto nla_put_failure;
12014
9c90a9f6 12015 genlmsg_end(msg, hdr);
3475b094 12016
68eb5503 12017 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12018 NL80211_MCGRP_MLME, gfp);
3475b094
JM		 12019 return;
12020
12021 nla_put_failure:
12022 genlmsg_cancel(msg, hdr);
12023 nlmsg_free(msg);
12024}
12025EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12026
026331c4
JM		 12027static int nl80211_netlink_notify(struct notifier_block * nb,
12028 unsigned long state,
12029 void *_notify)
12030{
12031 struct netlink_notify *notify = _notify;
12032 struct cfg80211_registered_device *rdev;
12033 struct wireless_dev *wdev;
37c73b5f 12034 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 12035
12036 if (state != NETLINK_URELEASE)
12037 return NOTIFY_DONE;
12038
12039 rcu_read_lock();
12040
5e760230 12041 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
78f22b6a
JB		 12042 bool schedule_destroy_work = false;
12043
12044 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
15e47304 12045 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f 12046
78f22b6a
JB		 12047 if (wdev->owner_nlportid == notify->portid)
12048 schedule_destroy_work = true;
12049 }
12050
37c73b5f
BG		 12051 spin_lock_bh(&rdev->beacon_registrations_lock);
12052 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12053 list) {
12054 if (reg->nlportid == notify->portid) {
12055 list_del(&reg->list);
12056 kfree(reg);
12057 break;
12058 }
12059 }
12060 spin_unlock_bh(&rdev->beacon_registrations_lock);
78f22b6a
JB		 12061
12062 if (schedule_destroy_work) {
12063 struct cfg80211_iface_destroy *destroy;
12064
12065 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12066 if (destroy) {
12067 destroy->nlportid = notify->portid;
12068 spin_lock(&rdev->destroy_list_lock);
12069 list_add(&destroy->list, &rdev->destroy_list);
12070 spin_unlock(&rdev->destroy_list_lock);
12071 schedule_work(&rdev->destroy_work);
12072 }
12073 }
5e760230 12074 }
026331c4
JM		 12075
12076 rcu_read_unlock();
12077
6784c7db 12078 return NOTIFY_OK;
026331c4
JM		 12079}
12080
12081static struct notifier_block nl80211_netlink_notifier = {
12082 .notifier_call = nl80211_netlink_notify,
12083};
12084
355199e0
JM		 12085void cfg80211_ft_event(struct net_device *netdev,
12086 struct cfg80211_ft_event_params *ft_event)
12087{
12088 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
f26cbf40 12089 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
355199e0
JM		 12090 struct sk_buff *msg;
12091 void *hdr;
355199e0
JM		 12092
12093 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12094
12095 if (!ft_event->target_ap)
12096 return;
12097
12098 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12099 if (!msg)
12100 return;
12101
12102 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
ae917c9f
JB		 12103 if (!hdr)
12104 goto out;
355199e0 12105
ae917c9f
JB		 12106 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12107 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12108 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12109 goto out;
355199e0 12110
ae917c9f
JB		 12111 if (ft_event->ies &&
12112 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12113 goto out;
12114 if (ft_event->ric_ies &&
12115 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12116 ft_event->ric_ies))
12117 goto out;
355199e0 12118
9c90a9f6 12119 genlmsg_end(msg, hdr);
355199e0 12120
68eb5503 12121 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
2a94fe48 12122 NL80211_MCGRP_MLME, GFP_KERNEL);
ae917c9f
JB		 12123 return;
12124 out:
12125 nlmsg_free(msg);
355199e0
JM		 12126}
12127EXPORT_SYMBOL(cfg80211_ft_event);
12128
5de17984
AS		 12129void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12130{
12131 struct cfg80211_registered_device *rdev;
12132 struct sk_buff *msg;
12133 void *hdr;
12134 u32 nlportid;
12135
f26cbf40 12136 rdev = wiphy_to_rdev(wdev->wiphy);
5de17984
AS		 12137 if (!rdev->crit_proto_nlportid)
12138 return;
12139
12140 nlportid = rdev->crit_proto_nlportid;
12141 rdev->crit_proto_nlportid = 0;
12142
12143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12144 if (!msg)
12145 return;
12146
12147 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12148 if (!hdr)
12149 goto nla_put_failure;
12150
12151 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12152 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12153 goto nla_put_failure;
12154
12155 genlmsg_end(msg, hdr);
12156
12157 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12158 return;
12159
12160 nla_put_failure:
12161 if (hdr)
12162 genlmsg_cancel(msg, hdr);
12163 nlmsg_free(msg);
12164
12165}
12166EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12167
348baf0e
JB		 12168void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12169{
12170 struct wiphy *wiphy = wdev->wiphy;
f26cbf40 12171 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
348baf0e
JB		 12172 struct sk_buff *msg;
12173 void *hdr;
12174
12175 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12176 if (!msg)
12177 return;
12178
12179 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12180 if (!hdr)
12181 goto out;
12182
12183 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12184 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12185 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12186 goto out;
12187
12188 genlmsg_end(msg, hdr);
12189
12190 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12191 NL80211_MCGRP_MLME, GFP_KERNEL);
12192 return;
12193 out:
12194 nlmsg_free(msg);
12195}
12196
55682965
JB		 12197/* initialisation/exit functions */
12198
12199int nl80211_init(void)
12200{
0d63cbb5 12201 int err;
55682965 12202
2a94fe48
JB		 12203 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12204 nl80211_mcgrps);
55682965
JB		 12205 if (err)
12206 return err;
12207
026331c4
JM		 12208 err = netlink_register_notifier(&nl80211_netlink_notifier);
12209 if (err)
12210 goto err_out;
12211
55682965
JB		 12212 return 0;
12213 err_out:
12214 genl_unregister_family(&nl80211_fam);
12215 return err;
12216}
12217
12218void nl80211_exit(void)
12219{
026331c4 12220 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 12221 genl_unregister_family(&nl80211_fam);
12222}
Linux 6.x block layer and io_uring tree(s)