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{cfg,nl}80211: mesh power mode primitives and userspace access
[mirror_ubuntu-bionic-kernel.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>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
e35e4d28 25#include "rdev-ops.h"
55682965 26
5fb628e9
JM		 27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
89a54e48
JB		 49/* returns ERR_PTR values */
50static struct wireless_dev *
51__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 52{
89a54e48
JB		 53 struct cfg80211_registered_device *rdev;
54 struct wireless_dev *result = NULL;
55 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
56 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
57 u64 wdev_id;
58 int wiphy_idx = -1;
59 int ifidx = -1;
55682965 60
89a54e48 61 assert_cfg80211_lock();
55682965 62
89a54e48
JB		 63 if (!have_ifidx && !have_wdev_id)
64 return ERR_PTR(-EINVAL);
55682965 65
89a54e48
JB		 66 if (have_ifidx)
67 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
68 if (have_wdev_id) {
69 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
70 wiphy_idx = wdev_id >> 32;
55682965
JB		 71 }
72
89a54e48
JB		 73 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
74 struct wireless_dev *wdev;
75
76 if (wiphy_net(&rdev->wiphy) != netns)
77 continue;
78
79 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
80 continue;
81
82 mutex_lock(&rdev->devlist_mtx);
83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
86 result = wdev;
87 break;
88 }
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
90 result = wdev;
91 break;
92 }
93 }
94 mutex_unlock(&rdev->devlist_mtx);
95
96 if (result)
97 break;
98 }
99
100 if (result)
101 return result;
102 return ERR_PTR(-ENODEV);
55682965
JB		 103}
104
a9455408 105static struct cfg80211_registered_device *
878d9ec7 106__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 107{
7fee4778
JB		 108 struct cfg80211_registered_device *rdev = NULL, *tmp;
109 struct net_device *netdev;
a9455408
JB		 110
111 assert_cfg80211_lock();
112
878d9ec7 113 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 114 !attrs[NL80211_ATTR_IFINDEX] &&
115 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 116 return ERR_PTR(-EINVAL);
117
878d9ec7 118 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 119 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 120 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 121
89a54e48
JB		 122 if (attrs[NL80211_ATTR_WDEV]) {
123 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
124 struct wireless_dev *wdev;
125 bool found = false;
126
127 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
128 if (tmp) {
129 /* make sure wdev exists */
130 mutex_lock(&tmp->devlist_mtx);
131 list_for_each_entry(wdev, &tmp->wdev_list, list) {
132 if (wdev->identifier != (u32)wdev_id)
133 continue;
134 found = true;
135 break;
136 }
137 mutex_unlock(&tmp->devlist_mtx);
138
139 if (!found)
140 tmp = NULL;
141
142 if (rdev && tmp != rdev)
143 return ERR_PTR(-EINVAL);
144 rdev = tmp;
145 }
146 }
147
878d9ec7
JB		 148 if (attrs[NL80211_ATTR_IFINDEX]) {
149 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 150 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 151 if (netdev) {
152 if (netdev->ieee80211_ptr)
153 tmp = wiphy_to_dev(
154 netdev->ieee80211_ptr->wiphy);
155 else
156 tmp = NULL;
157
158 dev_put(netdev);
159
160 /* not wireless device -- return error */
161 if (!tmp)
162 return ERR_PTR(-EINVAL);
163
164 /* mismatch -- return error */
165 if (rdev && tmp != rdev)
166 return ERR_PTR(-EINVAL);
167
168 rdev = tmp;
a9455408 169 }
a9455408 170 }
a9455408 171
4f7eff10
JB		 172 if (!rdev)
173 return ERR_PTR(-ENODEV);
a9455408 174
4f7eff10
JB		 175 if (netns != wiphy_net(&rdev->wiphy))
176 return ERR_PTR(-ENODEV);
177
178 return rdev;
a9455408
JB		 179}
180
181/*
182 * This function returns a pointer to the driver
183 * that the genl_info item that is passed refers to.
184 * If successful, it returns non-NULL and also locks
185 * the driver's mutex!
186 *
187 * This means that you need to call cfg80211_unlock_rdev()
188 * before being allowed to acquire &cfg80211_mutex!
189 *
190 * This is necessary because we need to lock the global
191 * mutex to get an item off the list safely, and then
192 * we lock the rdev mutex so it doesn't go away under us.
193 *
194 * We don't want to keep cfg80211_mutex locked
195 * for all the time in order to allow requests on
196 * other interfaces to go through at the same time.
197 *
198 * The result of this can be a PTR_ERR and hence must
199 * be checked with IS_ERR() for errors.
200 */
201static struct cfg80211_registered_device *
4f7eff10 202cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408
JB		 203{
204 struct cfg80211_registered_device *rdev;
205
206 mutex_lock(&cfg80211_mutex);
878d9ec7 207 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208
209 /* if it is not an error we grab the lock on
210 * it to assure it won't be going away while
211 * we operate on it */
212 if (!IS_ERR(rdev))
213 mutex_lock(&rdev->mtx);
214
215 mutex_unlock(&cfg80211_mutex);
216
217 return rdev;
218}
219
55682965 220/* policy for the attributes */
b54452b0 221static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 222 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
223 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 224 .len = 20-1 },
31888487 225 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 226
72bdcf34 227 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 228 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 229 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
230 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
232
b9a5f8ca
JM		 233 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
234 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
236 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 237 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 238
239 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
240 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 242
e007b857
EP		 243 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
244 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 245
b9454e83 246 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 247 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
248 .len = WLAN_MAX_KEY_LEN },
249 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
250 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
251 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 252 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 253 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 254
255 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
256 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
257 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
258 .len = IEEE80211_MAX_DATA_LEN },
259 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
260 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 261 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
262 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
263 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
264 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
265 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 266 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 267 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 268 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 269 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 270 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 271 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 272
b2e1b302
LR		 273 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
274 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
275
9f1ba906
JM		 276 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
277 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 279 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
280 .len = NL80211_MAX_SUPP_RATES },
50b12f59 281 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 282
24bdd9f4 283 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 284 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 285
6c739419 286 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 287
288 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
289 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
290 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 291 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
292 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 293
294 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
295 .len = IEEE80211_MAX_SSID_LEN },
296 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
297 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 298 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 299 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 300 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 301 [NL80211_ATTR_STA_FLAGS2] = {
302 .len = sizeof(struct nl80211_sta_flag_update),
303 },
3f77316c 304 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 305 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
306 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 307 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
308 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
309 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 310 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 311 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 312 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
313 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 314 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
315 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 316 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 317 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
318 .len = IEEE80211_MAX_DATA_LEN },
319 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 320 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 321 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 322 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 323 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 324 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
325 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 326 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 327 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
328 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 329 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 330 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 331 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 332 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 333 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 334 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 335 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 336 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 337 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 338 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
339 .len = IEEE80211_MAX_DATA_LEN },
340 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
341 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 342 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 343 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 344 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 345 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
346 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 350 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 351 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
352 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 353 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 354 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
355 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
356 .len = NL80211_HT_CAPABILITY_LEN
357 },
1d9d9213 358 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 359 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 360 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 361 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 362 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 363 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 364 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 365 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 366 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
367 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
55682965
JB		 368};
369
e31b8213 370/* policy for the key attributes */
b54452b0 371static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 372 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 373 [NL80211_KEY_IDX] = { .type = NLA_U8 },
374 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 375 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 376 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
377 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 378 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 379 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
380};
381
382/* policy for the key default flags */
383static const struct nla_policy
384nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
385 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
386 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 387};
388
ff1b6e69
JB		 389/* policy for WoWLAN attributes */
390static const struct nla_policy
391nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
392 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
393 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
394 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
395 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 396 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
397 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
398 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
399 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 400};
401
e5497d76
JB		 402/* policy for GTK rekey offload attributes */
403static const struct nla_policy
404nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
405 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
406 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
407 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
408};
409
a1f1c21c
LC		 410static const struct nla_policy
411nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 412 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 413 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 414 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 415};
416
a043897a
HS		 417/* ifidx get helper */
418static int nl80211_get_ifidx(struct netlink_callback *cb)
419{
420 int res;
421
422 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
423 nl80211_fam.attrbuf, nl80211_fam.maxattr,
424 nl80211_policy);
425 if (res)
426 return res;
427
428 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
429 return -EINVAL;
430
431 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
432 if (!res)
433 return -EINVAL;
434 return res;
435}
436
67748893
JB		 437static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
438 struct netlink_callback *cb,
439 struct cfg80211_registered_device **rdev,
440 struct net_device **dev)
441{
442 int ifidx = cb->args[0];
443 int err;
444
445 if (!ifidx)
446 ifidx = nl80211_get_ifidx(cb);
447 if (ifidx < 0)
448 return ifidx;
449
450 cb->args[0] = ifidx;
451
452 rtnl_lock();
453
454 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
455 if (!*dev) {
456 err = -ENODEV;
457 goto out_rtnl;
458 }
459
460 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 461 if (IS_ERR(*rdev)) {
462 err = PTR_ERR(*rdev);
67748893
JB		 463 goto out_rtnl;
464 }
465
466 return 0;
467 out_rtnl:
468 rtnl_unlock();
469 return err;
470}
471
472static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
473{
474 cfg80211_unlock_rdev(rdev);
475 rtnl_unlock();
476}
477
f4a11bb0
JB		 478/* IE validation */
479static bool is_valid_ie_attr(const struct nlattr *attr)
480{
481 const u8 *pos;
482 int len;
483
484 if (!attr)
485 return true;
486
487 pos = nla_data(attr);
488 len = nla_len(attr);
489
490 while (len) {
491 u8 elemlen;
492
493 if (len < 2)
494 return false;
495 len -= 2;
496
497 elemlen = pos[1];
498 if (elemlen > len)
499 return false;
500
501 len -= elemlen;
502 pos += 2 + elemlen;
503 }
504
505 return true;
506}
507
55682965 508/* message building helper */
15e47304 509static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 510 int flags, u8 cmd)
511{
512 /* since there is no private header just add the generic one */
15e47304 513 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 514}
515
5dab3b8a
LR		 516static int nl80211_msg_put_channel(struct sk_buff *msg,
517 struct ieee80211_channel *chan)
518{
9360ffd1
DM		 519 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
520 chan->center_freq))
521 goto nla_put_failure;
5dab3b8a 522
9360ffd1
DM		 523 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
524 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
525 goto nla_put_failure;
526 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
527 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
528 goto nla_put_failure;
529 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
530 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
531 goto nla_put_failure;
532 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
533 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
534 goto nla_put_failure;
5dab3b8a 535
9360ffd1
DM		 536 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
537 DBM_TO_MBM(chan->max_power)))
538 goto nla_put_failure;
5dab3b8a
LR		 539
540 return 0;
541
542 nla_put_failure:
543 return -ENOBUFS;
544}
545
55682965
JB		 546/* netlink command implementations */
547
b9454e83
JB		 548struct key_parse {
549 struct key_params p;
550 int idx;
e31b8213 551 int type;
b9454e83 552 bool def, defmgmt;
dbd2fd65 553 bool def_uni, def_multi;
b9454e83
JB		 554};
555
556static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
557{
558 struct nlattr *tb[NL80211_KEY_MAX + 1];
559 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
560 nl80211_key_policy);
561 if (err)
562 return err;
563
564 k->def = !!tb[NL80211_KEY_DEFAULT];
565 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
566
dbd2fd65
JB		 567 if (k->def) {
568 k->def_uni = true;
569 k->def_multi = true;
570 }
571 if (k->defmgmt)
572 k->def_multi = true;
573
b9454e83
JB		 574 if (tb[NL80211_KEY_IDX])
575 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
576
577 if (tb[NL80211_KEY_DATA]) {
578 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
579 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
580 }
581
582 if (tb[NL80211_KEY_SEQ]) {
583 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
584 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
585 }
586
587 if (tb[NL80211_KEY_CIPHER])
588 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
589
e31b8213
JB		 590 if (tb[NL80211_KEY_TYPE]) {
591 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
592 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
593 return -EINVAL;
594 }
595
dbd2fd65
JB		 596 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
597 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 598 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
599 tb[NL80211_KEY_DEFAULT_TYPES],
600 nl80211_key_default_policy);
dbd2fd65
JB		 601 if (err)
602 return err;
603
604 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
605 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
606 }
607
b9454e83
JB		 608 return 0;
609}
610
611static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
612{
613 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
614 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
615 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
616 }
617
618 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
619 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
620 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
621 }
622
623 if (info->attrs[NL80211_ATTR_KEY_IDX])
624 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
625
626 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
627 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
628
629 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
630 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
631
dbd2fd65
JB		 632 if (k->def) {
633 k->def_uni = true;
634 k->def_multi = true;
635 }
636 if (k->defmgmt)
637 k->def_multi = true;
638
e31b8213
JB		 639 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
640 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
641 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
642 return -EINVAL;
643 }
644
dbd2fd65
JB		 645 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
646 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
647 int err = nla_parse_nested(
648 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
649 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
650 nl80211_key_default_policy);
651 if (err)
652 return err;
653
654 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
655 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
656 }
657
b9454e83
JB		 658 return 0;
659}
660
661static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
662{
663 int err;
664
665 memset(k, 0, sizeof(*k));
666 k->idx = -1;
e31b8213 667 k->type = -1;
b9454e83
JB		 668
669 if (info->attrs[NL80211_ATTR_KEY])
670 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
671 else
672 err = nl80211_parse_key_old(info, k);
673
674 if (err)
675 return err;
676
677 if (k->def && k->defmgmt)
678 return -EINVAL;
679
dbd2fd65
JB		 680 if (k->defmgmt) {
681 if (k->def_uni || !k->def_multi)
682 return -EINVAL;
683 }
684
b9454e83
JB		 685 if (k->idx != -1) {
686 if (k->defmgmt) {
687 if (k->idx < 4 || k->idx > 5)
688 return -EINVAL;
689 } else if (k->def) {
690 if (k->idx < 0 || k->idx > 3)
691 return -EINVAL;
692 } else {
693 if (k->idx < 0 || k->idx > 5)
694 return -EINVAL;
695 }
696 }
697
698 return 0;
699}
700
fffd0934
JB		 701static struct cfg80211_cached_keys *
702nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 703 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 704{
705 struct key_parse parse;
706 struct nlattr *key;
707 struct cfg80211_cached_keys *result;
708 int rem, err, def = 0;
709
710 result = kzalloc(sizeof(*result), GFP_KERNEL);
711 if (!result)
712 return ERR_PTR(-ENOMEM);
713
714 result->def = -1;
715 result->defmgmt = -1;
716
717 nla_for_each_nested(key, keys, rem) {
718 memset(&parse, 0, sizeof(parse));
719 parse.idx = -1;
720
721 err = nl80211_parse_key_new(key, &parse);
722 if (err)
723 goto error;
724 err = -EINVAL;
725 if (!parse.p.key)
726 goto error;
727 if (parse.idx < 0 || parse.idx > 4)
728 goto error;
729 if (parse.def) {
730 if (def)
731 goto error;
732 def = 1;
733 result->def = parse.idx;
dbd2fd65
JB		 734 if (!parse.def_uni || !parse.def_multi)
735 goto error;
fffd0934
JB		 736 } else if (parse.defmgmt)
737 goto error;
738 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 739 parse.idx, false, NULL);
fffd0934
JB		 740 if (err)
741 goto error;
742 result->params[parse.idx].cipher = parse.p.cipher;
743 result->params[parse.idx].key_len = parse.p.key_len;
744 result->params[parse.idx].key = result->data[parse.idx];
745 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 746
747 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
748 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
749 if (no_ht)
750 *no_ht = true;
751 }
fffd0934
JB		 752 }
753
754 return result;
755 error:
756 kfree(result);
757 return ERR_PTR(err);
758}
759
760static int nl80211_key_allowed(struct wireless_dev *wdev)
761{
762 ASSERT_WDEV_LOCK(wdev);
763
fffd0934
JB		 764 switch (wdev->iftype) {
765 case NL80211_IFTYPE_AP:
766 case NL80211_IFTYPE_AP_VLAN:
074ac8df 767 case NL80211_IFTYPE_P2P_GO:
ff973af7 768 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 769 break;
770 case NL80211_IFTYPE_ADHOC:
771 if (!wdev->current_bss)
772 return -ENOLINK;
773 break;
774 case NL80211_IFTYPE_STATION:
074ac8df 775 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 776 if (wdev->sme_state != CFG80211_SME_CONNECTED)
777 return -ENOLINK;
778 break;
779 default:
780 return -EINVAL;
781 }
782
783 return 0;
784}
785
7527a782
JB		 786static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
787{
788 struct nlattr *nl_modes = nla_nest_start(msg, attr);
789 int i;
790
791 if (!nl_modes)
792 goto nla_put_failure;
793
794 i = 0;
795 while (ifmodes) {
9360ffd1
DM		 796 if ((ifmodes & 1) && nla_put_flag(msg, i))
797 goto nla_put_failure;
7527a782
JB		 798 ifmodes >>= 1;
799 i++;
800 }
801
802 nla_nest_end(msg, nl_modes);
803 return 0;
804
805nla_put_failure:
806 return -ENOBUFS;
807}
808
809static int nl80211_put_iface_combinations(struct wiphy *wiphy,
810 struct sk_buff *msg)
811{
812 struct nlattr *nl_combis;
813 int i, j;
814
815 nl_combis = nla_nest_start(msg,
816 NL80211_ATTR_INTERFACE_COMBINATIONS);
817 if (!nl_combis)
818 goto nla_put_failure;
819
820 for (i = 0; i < wiphy->n_iface_combinations; i++) {
821 const struct ieee80211_iface_combination *c;
822 struct nlattr *nl_combi, *nl_limits;
823
824 c = &wiphy->iface_combinations[i];
825
826 nl_combi = nla_nest_start(msg, i + 1);
827 if (!nl_combi)
828 goto nla_put_failure;
829
830 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
831 if (!nl_limits)
832 goto nla_put_failure;
833
834 for (j = 0; j < c->n_limits; j++) {
835 struct nlattr *nl_limit;
836
837 nl_limit = nla_nest_start(msg, j + 1);
838 if (!nl_limit)
839 goto nla_put_failure;
9360ffd1
DM		 840 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
841 c->limits[j].max))
842 goto nla_put_failure;
7527a782
JB		 843 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
844 c->limits[j].types))
845 goto nla_put_failure;
846 nla_nest_end(msg, nl_limit);
847 }
848
849 nla_nest_end(msg, nl_limits);
850
9360ffd1
DM		 851 if (c->beacon_int_infra_match &&
852 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
853 goto nla_put_failure;
854 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
855 c->num_different_channels) ||
856 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
857 c->max_interfaces))
858 goto nla_put_failure;
7527a782
JB		 859
860 nla_nest_end(msg, nl_combi);
861 }
862
863 nla_nest_end(msg, nl_combis);
864
865 return 0;
866nla_put_failure:
867 return -ENOBUFS;
868}
869
15e47304 870static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
55682965
JB		 871 struct cfg80211_registered_device *dev)
872{
873 void *hdr;
ee688b00
JB		 874 struct nlattr *nl_bands, *nl_band;
875 struct nlattr *nl_freqs, *nl_freq;
876 struct nlattr *nl_rates, *nl_rate;
8fdc621d 877 struct nlattr *nl_cmds;
ee688b00
JB		 878 enum ieee80211_band band;
879 struct ieee80211_channel *chan;
880 struct ieee80211_rate *rate;
881 int i;
2e161f78
JB		 882 const struct ieee80211_txrx_stypes *mgmt_stypes =
883 dev->wiphy.mgmt_stypes;
55682965 884
15e47304 885 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
55682965
JB		 886 if (!hdr)
887 return -1;
888
9360ffd1
DM		 889 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
890 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
891 nla_put_u32(msg, NL80211_ATTR_GENERATION,
892 cfg80211_rdev_list_generation) ||
893 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
894 dev->wiphy.retry_short) ||
895 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
896 dev->wiphy.retry_long) ||
897 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
898 dev->wiphy.frag_threshold) ||
899 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
900 dev->wiphy.rts_threshold) ||
901 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
902 dev->wiphy.coverage_class) ||
903 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
904 dev->wiphy.max_scan_ssids) ||
905 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
906 dev->wiphy.max_sched_scan_ssids) ||
907 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
908 dev->wiphy.max_scan_ie_len) ||
909 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
910 dev->wiphy.max_sched_scan_ie_len) ||
911 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
912 dev->wiphy.max_match_sets))
913 goto nla_put_failure;
914
915 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
916 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
917 goto nla_put_failure;
918 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
919 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
920 goto nla_put_failure;
921 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
922 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
923 goto nla_put_failure;
924 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
925 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
926 goto nla_put_failure;
927 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
928 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
929 goto nla_put_failure;
930 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
931 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
932 goto nla_put_failure;
933
934 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
935 sizeof(u32) * dev->wiphy.n_cipher_suites,
936 dev->wiphy.cipher_suites))
937 goto nla_put_failure;
938
939 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
940 dev->wiphy.max_num_pmkids))
941 goto nla_put_failure;
942
943 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
944 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
945 goto nla_put_failure;
946
947 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
948 dev->wiphy.available_antennas_tx) ||
949 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
950 dev->wiphy.available_antennas_rx))
951 goto nla_put_failure;
952
953 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
954 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
955 dev->wiphy.probe_resp_offload))
956 goto nla_put_failure;
87bbbe22 957
7f531e03
BR		 958 if ((dev->wiphy.available_antennas_tx ||
959 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 960 u32 tx_ant = 0, rx_ant = 0;
961 int res;
e35e4d28 962 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
afe0cbf8 963 if (!res) {
9360ffd1
DM		 964 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
965 tx_ant) ||
966 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
967 rx_ant))
968 goto nla_put_failure;
afe0cbf8
BR		 969 }
970 }
971
7527a782
JB		 972 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
973 dev->wiphy.interface_modes))
f59ac048
LR		 974 goto nla_put_failure;
975
ee688b00
JB		 976 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
977 if (!nl_bands)
978 goto nla_put_failure;
979
980 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
981 if (!dev->wiphy.bands[band])
982 continue;
983
984 nl_band = nla_nest_start(msg, band);
985 if (!nl_band)
986 goto nla_put_failure;
987
d51626df 988 /* add HT info */
9360ffd1
DM		 989 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
990 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
991 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
992 &dev->wiphy.bands[band]->ht_cap.mcs) ||
993 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
994 dev->wiphy.bands[band]->ht_cap.cap) ||
995 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
996 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
997 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
998 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
999 goto nla_put_failure;
d51626df 1000
bf0c111e
MP		 1001 /* add VHT info */
1002 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1003 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1004 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1005 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1006 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1007 dev->wiphy.bands[band]->vht_cap.cap)))
1008 goto nla_put_failure;
1009
ee688b00
JB		 1010 /* add frequencies */
1011 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1012 if (!nl_freqs)
1013 goto nla_put_failure;
1014
1015 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1016 nl_freq = nla_nest_start(msg, i);
1017 if (!nl_freq)
1018 goto nla_put_failure;
1019
1020 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 1021
1022 if (nl80211_msg_put_channel(msg, chan))
1023 goto nla_put_failure;
e2f367f2 1024
ee688b00
JB		 1025 nla_nest_end(msg, nl_freq);
1026 }
1027
1028 nla_nest_end(msg, nl_freqs);
1029
1030 /* add bitrates */
1031 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1032 if (!nl_rates)
1033 goto nla_put_failure;
1034
1035 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1036 nl_rate = nla_nest_start(msg, i);
1037 if (!nl_rate)
1038 goto nla_put_failure;
1039
1040 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 1041 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1042 rate->bitrate))
1043 goto nla_put_failure;
1044 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1045 nla_put_flag(msg,
1046 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1047 goto nla_put_failure;
ee688b00
JB		 1048
1049 nla_nest_end(msg, nl_rate);
1050 }
1051
1052 nla_nest_end(msg, nl_rates);
1053
1054 nla_nest_end(msg, nl_band);
1055 }
1056 nla_nest_end(msg, nl_bands);
1057
8fdc621d
JB		 1058 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1059 if (!nl_cmds)
1060 goto nla_put_failure;
1061
1062 i = 0;
1063#define CMD(op, n) \
1064 do { \
1065 if (dev->ops->op) { \
1066 i++; \
9360ffd1
DM		 1067 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1068 goto nla_put_failure; \
8fdc621d
JB		 1069 } \
1070 } while (0)
1071
1072 CMD(add_virtual_intf, NEW_INTERFACE);
1073 CMD(change_virtual_intf, SET_INTERFACE);
1074 CMD(add_key, NEW_KEY);
8860020e 1075 CMD(start_ap, START_AP);
8fdc621d
JB		 1076 CMD(add_station, NEW_STATION);
1077 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1078 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1079 CMD(change_bss, SET_BSS);
636a5d36
JM		 1080 CMD(auth, AUTHENTICATE);
1081 CMD(assoc, ASSOCIATE);
1082 CMD(deauth, DEAUTHENTICATE);
1083 CMD(disassoc, DISASSOCIATE);
04a773ad 1084 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1085 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1086 CMD(set_pmksa, SET_PMKSA);
1087 CMD(del_pmksa, DEL_PMKSA);
1088 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1089 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1090 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1091 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1092 CMD(mgmt_tx, FRAME);
f7ca38df 1093 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1094 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1095 i++;
9360ffd1
DM		 1096 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1097 goto nla_put_failure;
463d0183 1098 }
e8c9bd5b 1099 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1100 dev->ops->join_mesh) {
aa430da4
JB		 1101 i++;
1102 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1103 goto nla_put_failure;
1104 }
e8347eba 1105 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1106 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1107 CMD(tdls_mgmt, TDLS_MGMT);
1108 CMD(tdls_oper, TDLS_OPER);
1109 }
807f8a8c
LC		 1110 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1111 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1112 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1113 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1114 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1115 i++;
9360ffd1
DM		 1116 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1117 goto nla_put_failure;
5e760230 1118 }
98104fde 1119 CMD(start_p2p_device, START_P2P_DEVICE);
f4e583c8 1120 CMD(set_mcast_rate, SET_MCAST_RATE);
8fdc621d 1121
4745fc09
KV		 1122#ifdef CONFIG_NL80211_TESTMODE
1123 CMD(testmode_cmd, TESTMODE);
1124#endif
1125
8fdc621d 1126#undef CMD
b23aa676 1127
6829c878 1128 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1129 i++;
9360ffd1
DM		 1130 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1131 goto nla_put_failure;
b23aa676
SO		 1132 }
1133
6829c878 1134 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1135 i++;
9360ffd1
DM		 1136 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1137 goto nla_put_failure;
b23aa676
SO		 1138 }
1139
8fdc621d
JB		 1140 nla_nest_end(msg, nl_cmds);
1141
7c4ef712 1142 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1143 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1144 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1145 dev->wiphy.max_remain_on_channel_duration))
1146 goto nla_put_failure;
a293911d 1147
9360ffd1
DM		 1148 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1149 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1150 goto nla_put_failure;
f7ca38df 1151
2e161f78
JB		 1152 if (mgmt_stypes) {
1153 u16 stypes;
1154 struct nlattr *nl_ftypes, *nl_ifs;
1155 enum nl80211_iftype ift;
1156
1157 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1158 if (!nl_ifs)
1159 goto nla_put_failure;
1160
1161 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1162 nl_ftypes = nla_nest_start(msg, ift);
1163 if (!nl_ftypes)
1164 goto nla_put_failure;
1165 i = 0;
1166 stypes = mgmt_stypes[ift].tx;
1167 while (stypes) {
9360ffd1
DM		 1168 if ((stypes & 1) &&
1169 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1170 (i << 4) | IEEE80211_FTYPE_MGMT))
1171 goto nla_put_failure;
2e161f78
JB		 1172 stypes >>= 1;
1173 i++;
1174 }
1175 nla_nest_end(msg, nl_ftypes);
1176 }
1177
74b70a4e
JB		 1178 nla_nest_end(msg, nl_ifs);
1179
2e161f78
JB		 1180 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1181 if (!nl_ifs)
1182 goto nla_put_failure;
1183
1184 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1185 nl_ftypes = nla_nest_start(msg, ift);
1186 if (!nl_ftypes)
1187 goto nla_put_failure;
1188 i = 0;
1189 stypes = mgmt_stypes[ift].rx;
1190 while (stypes) {
9360ffd1
DM		 1191 if ((stypes & 1) &&
1192 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1193 (i << 4) | IEEE80211_FTYPE_MGMT))
1194 goto nla_put_failure;
2e161f78
JB		 1195 stypes >>= 1;
1196 i++;
1197 }
1198 nla_nest_end(msg, nl_ftypes);
1199 }
1200 nla_nest_end(msg, nl_ifs);
1201 }
1202
dfb89c56 1203#ifdef CONFIG_PM
ff1b6e69
JB		 1204 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1205 struct nlattr *nl_wowlan;
1206
1207 nl_wowlan = nla_nest_start(msg,
1208 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1209 if (!nl_wowlan)
1210 goto nla_put_failure;
1211
9360ffd1
DM		 1212 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1213 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1214 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1215 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1216 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1217 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1218 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1219 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1220 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1221 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1222 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1223 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1224 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1225 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1226 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1227 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1228 goto nla_put_failure;
ff1b6e69
JB		 1229 if (dev->wiphy.wowlan.n_patterns) {
1230 struct nl80211_wowlan_pattern_support pat = {
1231 .max_patterns = dev->wiphy.wowlan.n_patterns,
1232 .min_pattern_len =
1233 dev->wiphy.wowlan.pattern_min_len,
1234 .max_pattern_len =
1235 dev->wiphy.wowlan.pattern_max_len,
1236 };
9360ffd1
DM		 1237 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1238 sizeof(pat), &pat))
1239 goto nla_put_failure;
ff1b6e69
JB		 1240 }
1241
1242 nla_nest_end(msg, nl_wowlan);
1243 }
dfb89c56 1244#endif
ff1b6e69 1245
7527a782
JB		 1246 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1247 dev->wiphy.software_iftypes))
1248 goto nla_put_failure;
1249
1250 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1251 goto nla_put_failure;
1252
9360ffd1
DM		 1253 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1254 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1255 dev->wiphy.ap_sme_capa))
1256 goto nla_put_failure;
562a7480 1257
9360ffd1
DM		 1258 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1259 dev->wiphy.features))
1260 goto nla_put_failure;
1f074bd8 1261
9360ffd1
DM		 1262 if (dev->wiphy.ht_capa_mod_mask &&
1263 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1264 sizeof(*dev->wiphy.ht_capa_mod_mask),
1265 dev->wiphy.ht_capa_mod_mask))
1266 goto nla_put_failure;
7e7c8926 1267
55682965
JB		 1268 return genlmsg_end(msg, hdr);
1269
1270 nla_put_failure:
bc3ed28c
TG		 1271 genlmsg_cancel(msg, hdr);
1272 return -EMSGSIZE;
55682965
JB		 1273}
1274
1275static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1276{
1277 int idx = 0;
1278 int start = cb->args[0];
1279 struct cfg80211_registered_device *dev;
1280
a1794390 1281 mutex_lock(&cfg80211_mutex);
79c97e97 1282 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1283 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1284 continue;
b4637271 1285 if (++idx <= start)
55682965 1286 continue;
15e47304 1287 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
55682965 1288 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1289 dev) < 0) {
1290 idx--;
55682965 1291 break;
b4637271 1292 }
55682965 1293 }
a1794390 1294 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1295
1296 cb->args[0] = idx;
1297
1298 return skb->len;
1299}
1300
1301static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1302{
1303 struct sk_buff *msg;
4c476991 1304 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1305
fd2120ca 1306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1307 if (!msg)
4c476991 1308 return -ENOMEM;
55682965 1309
15e47304 1310 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
4c476991
JB		 1311 nlmsg_free(msg);
1312 return -ENOBUFS;
1313 }
55682965 1314
134e6375 1315 return genlmsg_reply(msg, info);
55682965
JB		 1316}
1317
31888487
JM		 1318static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1319 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1320 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1321 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1322 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1323 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1324};
1325
1326static int parse_txq_params(struct nlattr *tb[],
1327 struct ieee80211_txq_params *txq_params)
1328{
a3304b0a 1329 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1330 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1331 !tb[NL80211_TXQ_ATTR_AIFS])
1332 return -EINVAL;
1333
a3304b0a 1334 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1335 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1336 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1337 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1338 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1339
a3304b0a
JB		 1340 if (txq_params->ac >= NL80211_NUM_ACS)
1341 return -EINVAL;
1342
31888487
JM		 1343 return 0;
1344}
1345
f444de05
JB		 1346static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1347{
1348 /*
cc1d2806
JB		 1349 * You can only set the channel explicitly for WDS interfaces,
1350 * all others have their channel managed via their respective
1351 * "establish a connection" command (connect, join, ...)
1352 *
1353 * For AP/GO and mesh mode, the channel can be set with the
1354 * channel userspace API, but is only stored and passed to the
1355 * low-level driver when the AP starts or the mesh is joined.
1356 * This is for backward compatibility, userspace can also give
1357 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1358 *
1359 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1360 * whatever else is going on, so they have their own special
1361 * operation to set the monitor channel if possible.
f444de05
JB		 1362 */
1363 return !wdev ||
1364 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1365 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1366 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1367 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1368}
1369
683b6d3b
JB		 1370static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1371 struct genl_info *info,
1372 struct cfg80211_chan_def *chandef)
1373{
dbeca2ea 1374 u32 control_freq;
683b6d3b
JB		 1375
1376 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1377 return -EINVAL;
1378
1379 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1380
1381 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1382 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1383 chandef->center_freq1 = control_freq;
1384 chandef->center_freq2 = 0;
683b6d3b
JB		 1385
1386 /* Primary channel not allowed */
1387 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1388 return -EINVAL;
1389
3d9d1d66
JB		 1390 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1391 enum nl80211_channel_type chantype;
1392
1393 chantype = nla_get_u32(
1394 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1395
1396 switch (chantype) {
1397 case NL80211_CHAN_NO_HT:
1398 case NL80211_CHAN_HT20:
1399 case NL80211_CHAN_HT40PLUS:
1400 case NL80211_CHAN_HT40MINUS:
1401 cfg80211_chandef_create(chandef, chandef->chan,
1402 chantype);
1403 break;
1404 default:
1405 return -EINVAL;
1406 }
1407 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1408 chandef->width =
1409 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1410 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1411 chandef->center_freq1 =
1412 nla_get_u32(
1413 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1414 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1415 chandef->center_freq2 =
1416 nla_get_u32(
1417 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1418 }
1419
9f5e8f6e 1420 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1421 return -EINVAL;
1422
9f5e8f6e
JB		 1423 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1424 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1425 return -EINVAL;
1426
683b6d3b
JB		 1427 return 0;
1428}
1429
f444de05
JB		 1430static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1431 struct wireless_dev *wdev,
1432 struct genl_info *info)
1433{
683b6d3b 1434 struct cfg80211_chan_def chandef;
f444de05 1435 int result;
e8c9bd5b
JB		 1436 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1437
1438 if (wdev)
1439 iftype = wdev->iftype;
f444de05 1440
f444de05
JB		 1441 if (!nl80211_can_set_dev_channel(wdev))
1442 return -EOPNOTSUPP;
1443
683b6d3b
JB		 1444 result = nl80211_parse_chandef(rdev, info, &chandef);
1445 if (result)
1446 return result;
f444de05
JB		 1447
1448 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1449 switch (iftype) {
aa430da4
JB		 1450 case NL80211_IFTYPE_AP:
1451 case NL80211_IFTYPE_P2P_GO:
1452 if (wdev->beacon_interval) {
1453 result = -EBUSY;
1454 break;
1455 }
683b6d3b 1456 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1457 result = -EINVAL;
1458 break;
1459 }
683b6d3b 1460 wdev->preset_chandef = chandef;
aa430da4
JB		 1461 result = 0;
1462 break;
cc1d2806 1463 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1464 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1465 break;
e8c9bd5b 1466 case NL80211_IFTYPE_MONITOR:
683b6d3b 1467 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1468 break;
aa430da4 1469 default:
e8c9bd5b 1470 result = -EINVAL;
f444de05
JB		 1471 }
1472 mutex_unlock(&rdev->devlist_mtx);
1473
1474 return result;
1475}
1476
1477static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1478{
4c476991
JB		 1479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1480 struct net_device *netdev = info->user_ptr[1];
f444de05 1481
4c476991 1482 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1483}
1484
e8347eba
BJ		 1485static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1486{
43b19952
JB		 1487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1488 struct net_device *dev = info->user_ptr[1];
1489 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1490 const u8 *bssid;
e8347eba
BJ		 1491
1492 if (!info->attrs[NL80211_ATTR_MAC])
1493 return -EINVAL;
1494
43b19952
JB		 1495 if (netif_running(dev))
1496 return -EBUSY;
e8347eba 1497
43b19952
JB		 1498 if (!rdev->ops->set_wds_peer)
1499 return -EOPNOTSUPP;
e8347eba 1500
43b19952
JB		 1501 if (wdev->iftype != NL80211_IFTYPE_WDS)
1502 return -EOPNOTSUPP;
e8347eba
BJ		 1503
1504 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1505 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1506}
1507
1508
55682965
JB		 1509static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1510{
1511 struct cfg80211_registered_device *rdev;
f444de05
JB		 1512 struct net_device *netdev = NULL;
1513 struct wireless_dev *wdev;
a1e567c8 1514 int result = 0, rem_txq_params = 0;
31888487 1515 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1516 u32 changed;
1517 u8 retry_short = 0, retry_long = 0;
1518 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1519 u8 coverage_class = 0;
55682965 1520
f444de05
JB		 1521 /*
1522 * Try to find the wiphy and netdev. Normally this
1523 * function shouldn't need the netdev, but this is
1524 * done for backward compatibility -- previously
1525 * setting the channel was done per wiphy, but now
1526 * it is per netdev. Previous userland like hostapd
1527 * also passed a netdev to set_wiphy, so that it is
1528 * possible to let that go to the right netdev!
1529 */
4bbf4d56
JB		 1530 mutex_lock(&cfg80211_mutex);
1531
f444de05
JB		 1532 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1533 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1534
1535 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1536 if (netdev && netdev->ieee80211_ptr) {
1537 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1538 mutex_lock(&rdev->mtx);
1539 } else
1540 netdev = NULL;
4bbf4d56
JB		 1541 }
1542
f444de05 1543 if (!netdev) {
878d9ec7
JB		 1544 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1545 info->attrs);
f444de05
JB		 1546 if (IS_ERR(rdev)) {
1547 mutex_unlock(&cfg80211_mutex);
4c476991 1548 return PTR_ERR(rdev);
f444de05
JB		 1549 }
1550 wdev = NULL;
1551 netdev = NULL;
1552 result = 0;
1553
1554 mutex_lock(&rdev->mtx);
71fe96bf 1555 } else
f444de05 1556 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1557
1558 /*
1559 * end workaround code, by now the rdev is available
1560 * and locked, and wdev may or may not be NULL.
1561 */
4bbf4d56
JB		 1562
1563 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1564 result = cfg80211_dev_rename(
1565 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1566
1567 mutex_unlock(&cfg80211_mutex);
1568
1569 if (result)
1570 goto bad_res;
31888487
JM		 1571
1572 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1573 struct ieee80211_txq_params txq_params;
1574 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1575
1576 if (!rdev->ops->set_txq_params) {
1577 result = -EOPNOTSUPP;
1578 goto bad_res;
1579 }
1580
f70f01c2
EP		 1581 if (!netdev) {
1582 result = -EINVAL;
1583 goto bad_res;
1584 }
1585
133a3ff2
JB		 1586 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1587 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1588 result = -EINVAL;
1589 goto bad_res;
1590 }
1591
2b5f8b0b
JB		 1592 if (!netif_running(netdev)) {
1593 result = -ENETDOWN;
1594 goto bad_res;
1595 }
1596
31888487
JM		 1597 nla_for_each_nested(nl_txq_params,
1598 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1599 rem_txq_params) {
1600 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1601 nla_data(nl_txq_params),
1602 nla_len(nl_txq_params),
1603 txq_params_policy);
1604 result = parse_txq_params(tb, &txq_params);
1605 if (result)
1606 goto bad_res;
1607
e35e4d28
HG		 1608 result = rdev_set_txq_params(rdev, netdev,
1609 &txq_params);
31888487
JM		 1610 if (result)
1611 goto bad_res;
1612 }
1613 }
55682965 1614
72bdcf34 1615 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1616 result = __nl80211_set_channel(rdev,
1617 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1618 info);
72bdcf34
JM		 1619 if (result)
1620 goto bad_res;
1621 }
1622
98d2ff8b 1623 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1624 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1625 enum nl80211_tx_power_setting type;
1626 int idx, mbm = 0;
1627
c8442118
JB		 1628 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1629 txp_wdev = NULL;
1630
98d2ff8b 1631 if (!rdev->ops->set_tx_power) {
60ea385f 1632 result = -EOPNOTSUPP;
98d2ff8b
JO		 1633 goto bad_res;
1634 }
1635
1636 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1637 type = nla_get_u32(info->attrs[idx]);
1638
1639 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1640 (type != NL80211_TX_POWER_AUTOMATIC)) {
1641 result = -EINVAL;
1642 goto bad_res;
1643 }
1644
1645 if (type != NL80211_TX_POWER_AUTOMATIC) {
1646 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1647 mbm = nla_get_u32(info->attrs[idx]);
1648 }
1649
c8442118 1650 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1651 if (result)
1652 goto bad_res;
1653 }
1654
afe0cbf8
BR		 1655 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1656 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1657 u32 tx_ant, rx_ant;
7f531e03
BR		 1658 if ((!rdev->wiphy.available_antennas_tx &&
1659 !rdev->wiphy.available_antennas_rx) ||
1660 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1661 result = -EOPNOTSUPP;
1662 goto bad_res;
1663 }
1664
1665 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1666 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1667
a7ffac95 1668 /* reject antenna configurations which don't match the
7f531e03
BR		 1669 * available antenna masks, except for the "all" mask */
1670 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1671 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1672 result = -EINVAL;
1673 goto bad_res;
1674 }
1675
7f531e03
BR		 1676 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1677 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1678
e35e4d28 1679 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1680 if (result)
1681 goto bad_res;
1682 }
1683
b9a5f8ca
JM		 1684 changed = 0;
1685
1686 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1687 retry_short = nla_get_u8(
1688 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1689 if (retry_short == 0) {
1690 result = -EINVAL;
1691 goto bad_res;
1692 }
1693 changed |= WIPHY_PARAM_RETRY_SHORT;
1694 }
1695
1696 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1697 retry_long = nla_get_u8(
1698 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1699 if (retry_long == 0) {
1700 result = -EINVAL;
1701 goto bad_res;
1702 }
1703 changed |= WIPHY_PARAM_RETRY_LONG;
1704 }
1705
1706 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1707 frag_threshold = nla_get_u32(
1708 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1709 if (frag_threshold < 256) {
1710 result = -EINVAL;
1711 goto bad_res;
1712 }
1713 if (frag_threshold != (u32) -1) {
1714 /*
1715 * Fragments (apart from the last one) are required to
1716 * have even length. Make the fragmentation code
1717 * simpler by stripping LSB should someone try to use
1718 * odd threshold value.
1719 */
1720 frag_threshold &= ~0x1;
1721 }
1722 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1723 }
1724
1725 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1726 rts_threshold = nla_get_u32(
1727 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1728 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1729 }
1730
81077e82
LT		 1731 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1732 coverage_class = nla_get_u8(
1733 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1734 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1735 }
1736
b9a5f8ca
JM		 1737 if (changed) {
1738 u8 old_retry_short, old_retry_long;
1739 u32 old_frag_threshold, old_rts_threshold;
81077e82 1740 u8 old_coverage_class;
b9a5f8ca
JM		 1741
1742 if (!rdev->ops->set_wiphy_params) {
1743 result = -EOPNOTSUPP;
1744 goto bad_res;
1745 }
1746
1747 old_retry_short = rdev->wiphy.retry_short;
1748 old_retry_long = rdev->wiphy.retry_long;
1749 old_frag_threshold = rdev->wiphy.frag_threshold;
1750 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1751 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1752
1753 if (changed & WIPHY_PARAM_RETRY_SHORT)
1754 rdev->wiphy.retry_short = retry_short;
1755 if (changed & WIPHY_PARAM_RETRY_LONG)
1756 rdev->wiphy.retry_long = retry_long;
1757 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1758 rdev->wiphy.frag_threshold = frag_threshold;
1759 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1760 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1761 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1762 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 1763
e35e4d28 1764 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 1765 if (result) {
1766 rdev->wiphy.retry_short = old_retry_short;
1767 rdev->wiphy.retry_long = old_retry_long;
1768 rdev->wiphy.frag_threshold = old_frag_threshold;
1769 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1770 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1771 }
1772 }
72bdcf34 1773
306d6112 1774 bad_res:
4bbf4d56 1775 mutex_unlock(&rdev->mtx);
f444de05
JB		 1776 if (netdev)
1777 dev_put(netdev);
55682965
JB		 1778 return result;
1779}
1780
71bbc994
JB		 1781static inline u64 wdev_id(struct wireless_dev *wdev)
1782{
1783 return (u64)wdev->identifier |
1784 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1785}
55682965 1786
683b6d3b
JB		 1787static int nl80211_send_chandef(struct sk_buff *msg,
1788 struct cfg80211_chan_def *chandef)
1789{
9f5e8f6e 1790 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 1791
683b6d3b
JB		 1792 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1793 chandef->chan->center_freq))
1794 return -ENOBUFS;
3d9d1d66
JB		 1795 switch (chandef->width) {
1796 case NL80211_CHAN_WIDTH_20_NOHT:
1797 case NL80211_CHAN_WIDTH_20:
1798 case NL80211_CHAN_WIDTH_40:
1799 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1800 cfg80211_get_chandef_type(chandef)))
1801 return -ENOBUFS;
1802 break;
1803 default:
1804 break;
1805 }
1806 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1807 return -ENOBUFS;
1808 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1809 return -ENOBUFS;
1810 if (chandef->center_freq2 &&
1811 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 1812 return -ENOBUFS;
1813 return 0;
1814}
1815
15e47304 1816static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 1817 struct cfg80211_registered_device *rdev,
72fb2abc 1818 struct wireless_dev *wdev)
55682965 1819{
72fb2abc 1820 struct net_device *dev = wdev->netdev;
55682965
JB		 1821 void *hdr;
1822
15e47304 1823 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 1824 if (!hdr)
1825 return -1;
1826
72fb2abc
JB		 1827 if (dev &&
1828 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 1829 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 1830 goto nla_put_failure;
1831
1832 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1833 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 1834 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 1835 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 1836 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1837 rdev->devlist_generation ^
1838 (cfg80211_rdev_list_generation << 2)))
1839 goto nla_put_failure;
f5ea9120 1840
5b7ccaf3 1841 if (rdev->ops->get_channel) {
683b6d3b
JB		 1842 int ret;
1843 struct cfg80211_chan_def chandef;
1844
1845 ret = rdev_get_channel(rdev, wdev, &chandef);
1846 if (ret == 0) {
1847 if (nl80211_send_chandef(msg, &chandef))
1848 goto nla_put_failure;
1849 }
d91df0e3
PF		 1850 }
1851
b84e7a05
AQ		 1852 if (wdev->ssid_len) {
1853 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1854 goto nla_put_failure;
1855 }
1856
55682965
JB		 1857 return genlmsg_end(msg, hdr);
1858
1859 nla_put_failure:
bc3ed28c
TG		 1860 genlmsg_cancel(msg, hdr);
1861 return -EMSGSIZE;
55682965
JB		 1862}
1863
1864static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1865{
1866 int wp_idx = 0;
1867 int if_idx = 0;
1868 int wp_start = cb->args[0];
1869 int if_start = cb->args[1];
f5ea9120 1870 struct cfg80211_registered_device *rdev;
55682965
JB		 1871 struct wireless_dev *wdev;
1872
a1794390 1873 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1874 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1875 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1876 continue;
bba95fef
JB		 1877 if (wp_idx < wp_start) {
1878 wp_idx++;
55682965 1879 continue;
bba95fef 1880 }
55682965
JB		 1881 if_idx = 0;
1882
f5ea9120 1883 mutex_lock(&rdev->devlist_mtx);
89a54e48 1884 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1885 if (if_idx < if_start) {
1886 if_idx++;
55682965 1887 continue;
bba95fef 1888 }
15e47304 1889 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 1890 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 1891 rdev, wdev) < 0) {
f5ea9120 1892 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1893 goto out;
1894 }
1895 if_idx++;
55682965 1896 }
f5ea9120 1897 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1898
1899 wp_idx++;
55682965 1900 }
bba95fef 1901 out:
a1794390 1902 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1903
1904 cb->args[0] = wp_idx;
1905 cb->args[1] = if_idx;
1906
1907 return skb->len;
1908}
1909
1910static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1911{
1912 struct sk_buff *msg;
4c476991 1913 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 1914 struct wireless_dev *wdev = info->user_ptr[1];
55682965 1915
fd2120ca 1916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1917 if (!msg)
4c476991 1918 return -ENOMEM;
55682965 1919
15e47304 1920 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 1921 dev, wdev) < 0) {
4c476991
JB		 1922 nlmsg_free(msg);
1923 return -ENOBUFS;
1924 }
55682965 1925
134e6375 1926 return genlmsg_reply(msg, info);
55682965
JB		 1927}
1928
66f7ac50
MW		 1929static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1930 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1931 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1932 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1933 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1934 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1935};
1936
1937static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1938{
1939 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1940 int flag;
1941
1942 *mntrflags = 0;
1943
1944 if (!nla)
1945 return -EINVAL;
1946
1947 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1948 nla, mntr_flags_policy))
1949 return -EINVAL;
1950
1951 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1952 if (flags[flag])
1953 *mntrflags |= (1<<flag);
1954
1955 return 0;
1956}
1957
9bc383de 1958static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1959 struct net_device *netdev, u8 use_4addr,
1960 enum nl80211_iftype iftype)
9bc383de 1961{
ad4bb6f8 1962 if (!use_4addr) {
f350a0a8 1963 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1964 return -EBUSY;
9bc383de 1965 return 0;
ad4bb6f8 1966 }
9bc383de
JB		 1967
1968 switch (iftype) {
1969 case NL80211_IFTYPE_AP_VLAN:
1970 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1971 return 0;
1972 break;
1973 case NL80211_IFTYPE_STATION:
1974 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1975 return 0;
1976 break;
1977 default:
1978 break;
1979 }
1980
1981 return -EOPNOTSUPP;
1982}
1983
55682965
JB		 1984static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1985{
4c476991 1986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1987 struct vif_params params;
e36d56b6 1988 int err;
04a773ad 1989 enum nl80211_iftype otype, ntype;
4c476991 1990 struct net_device *dev = info->user_ptr[1];
92ffe055 1991 u32 _flags, *flags = NULL;
ac7f9cfa 1992 bool change = false;
55682965 1993
2ec600d6
LCC		 1994 memset(&params, 0, sizeof(params));
1995
04a773ad 1996 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1997
723b038d 1998 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1999 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2000 if (otype != ntype)
ac7f9cfa 2001 change = true;
4c476991
JB		 2002 if (ntype > NL80211_IFTYPE_MAX)
2003 return -EINVAL;
723b038d
JB		 2004 }
2005
92ffe055 2006 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2007 struct wireless_dev *wdev = dev->ieee80211_ptr;
2008
4c476991
JB		 2009 if (ntype != NL80211_IFTYPE_MESH_POINT)
2010 return -EINVAL;
29cbe68c
JB		 2011 if (netif_running(dev))
2012 return -EBUSY;
2013
2014 wdev_lock(wdev);
2015 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2016 IEEE80211_MAX_MESH_ID_LEN);
2017 wdev->mesh_id_up_len =
2018 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2019 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2020 wdev->mesh_id_up_len);
2021 wdev_unlock(wdev);
2ec600d6
LCC		 2022 }
2023
8b787643
FF		 2024 if (info->attrs[NL80211_ATTR_4ADDR]) {
2025 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2026 change = true;
ad4bb6f8 2027 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2028 if (err)
4c476991 2029 return err;
8b787643
FF		 2030 } else {
2031 params.use_4addr = -1;
2032 }
2033
92ffe055 2034 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2035 if (ntype != NL80211_IFTYPE_MONITOR)
2036 return -EINVAL;
92ffe055
JB		 2037 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2038 &_flags);
ac7f9cfa 2039 if (err)
4c476991 2040 return err;
ac7f9cfa
JB		 2041
2042 flags = &_flags;
2043 change = true;
92ffe055 2044 }
3b85875a 2045
ac7f9cfa 2046 if (change)
3d54d255 2047 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2048 else
2049 err = 0;
60719ffd 2050
9bc383de
JB		 2051 if (!err && params.use_4addr != -1)
2052 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2053
55682965
JB		 2054 return err;
2055}
2056
2057static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2058{
4c476991 2059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2060 struct vif_params params;
84efbb84 2061 struct wireless_dev *wdev;
1c90f9d4 2062 struct sk_buff *msg;
55682965
JB		 2063 int err;
2064 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2065 u32 flags;
55682965 2066
2ec600d6
LCC		 2067 memset(&params, 0, sizeof(params));
2068
55682965
JB		 2069 if (!info->attrs[NL80211_ATTR_IFNAME])
2070 return -EINVAL;
2071
2072 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2073 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2074 if (type > NL80211_IFTYPE_MAX)
2075 return -EINVAL;
2076 }
2077
79c97e97 2078 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2079 !(rdev->wiphy.interface_modes & (1 << type)))
2080 return -EOPNOTSUPP;
55682965 2081
9bc383de 2082 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2083 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2084 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2085 if (err)
4c476991 2086 return err;
9bc383de 2087 }
8b787643 2088
1c90f9d4
JB		 2089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2090 if (!msg)
2091 return -ENOMEM;
2092
66f7ac50
MW		 2093 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2094 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2095 &flags);
e35e4d28
HG		 2096 wdev = rdev_add_virtual_intf(rdev,
2097 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2098 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2099 if (IS_ERR(wdev)) {
2100 nlmsg_free(msg);
84efbb84 2101 return PTR_ERR(wdev);
1c90f9d4 2102 }
2ec600d6 2103
98104fde
JB		 2104 switch (type) {
2105 case NL80211_IFTYPE_MESH_POINT:
2106 if (!info->attrs[NL80211_ATTR_MESH_ID])
2107 break;
29cbe68c
JB		 2108 wdev_lock(wdev);
2109 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2110 IEEE80211_MAX_MESH_ID_LEN);
2111 wdev->mesh_id_up_len =
2112 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2113 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2114 wdev->mesh_id_up_len);
2115 wdev_unlock(wdev);
98104fde
JB		 2116 break;
2117 case NL80211_IFTYPE_P2P_DEVICE:
2118 /*
2119 * P2P Device doesn't have a netdev, so doesn't go
2120 * through the netdev notifier and must be added here
2121 */
2122 mutex_init(&wdev->mtx);
2123 INIT_LIST_HEAD(&wdev->event_list);
2124 spin_lock_init(&wdev->event_lock);
2125 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2126 spin_lock_init(&wdev->mgmt_registrations_lock);
2127
2128 mutex_lock(&rdev->devlist_mtx);
2129 wdev->identifier = ++rdev->wdev_id;
2130 list_add_rcu(&wdev->list, &rdev->wdev_list);
2131 rdev->devlist_generation++;
2132 mutex_unlock(&rdev->devlist_mtx);
2133 break;
2134 default:
2135 break;
29cbe68c
JB		 2136 }
2137
15e47304 2138 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2139 rdev, wdev) < 0) {
2140 nlmsg_free(msg);
2141 return -ENOBUFS;
2142 }
2143
2144 return genlmsg_reply(msg, info);
55682965
JB		 2145}
2146
2147static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2148{
4c476991 2149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2150 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2151
4c476991
JB		 2152 if (!rdev->ops->del_virtual_intf)
2153 return -EOPNOTSUPP;
55682965 2154
84efbb84
JB		 2155 /*
2156 * If we remove a wireless device without a netdev then clear
2157 * user_ptr[1] so that nl80211_post_doit won't dereference it
2158 * to check if it needs to do dev_put(). Otherwise it crashes
2159 * since the wdev has been freed, unlike with a netdev where
2160 * we need the dev_put() for the netdev to really be freed.
2161 */
2162 if (!wdev->netdev)
2163 info->user_ptr[1] = NULL;
2164
e35e4d28 2165 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2166}
2167
1d9d9213
SW		 2168static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2169{
2170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2171 struct net_device *dev = info->user_ptr[1];
2172 u16 noack_map;
2173
2174 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2175 return -EINVAL;
2176
2177 if (!rdev->ops->set_noack_map)
2178 return -EOPNOTSUPP;
2179
2180 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2181
e35e4d28 2182 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2183}
2184
41ade00f
JB		 2185struct get_key_cookie {
2186 struct sk_buff *msg;
2187 int error;
b9454e83 2188 int idx;
41ade00f
JB		 2189};
2190
2191static void get_key_callback(void *c, struct key_params *params)
2192{
b9454e83 2193 struct nlattr *key;
41ade00f
JB		 2194 struct get_key_cookie *cookie = c;
2195
9360ffd1
DM		 2196 if ((params->key &&
2197 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2198 params->key_len, params->key)) ||
2199 (params->seq &&
2200 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2201 params->seq_len, params->seq)) ||
2202 (params->cipher &&
2203 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2204 params->cipher)))
2205 goto nla_put_failure;
41ade00f 2206
b9454e83
JB		 2207 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2208 if (!key)
2209 goto nla_put_failure;
2210
9360ffd1
DM		 2211 if ((params->key &&
2212 nla_put(cookie->msg, NL80211_KEY_DATA,
2213 params->key_len, params->key)) ||
2214 (params->seq &&
2215 nla_put(cookie->msg, NL80211_KEY_SEQ,
2216 params->seq_len, params->seq)) ||
2217 (params->cipher &&
2218 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2219 params->cipher)))
2220 goto nla_put_failure;
b9454e83 2221
9360ffd1
DM		 2222 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2223 goto nla_put_failure;
b9454e83
JB		 2224
2225 nla_nest_end(cookie->msg, key);
2226
41ade00f
JB		 2227 return;
2228 nla_put_failure:
2229 cookie->error = 1;
2230}
2231
2232static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2233{
4c476991 2234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2235 int err;
4c476991 2236 struct net_device *dev = info->user_ptr[1];
41ade00f 2237 u8 key_idx = 0;
e31b8213
JB		 2238 const u8 *mac_addr = NULL;
2239 bool pairwise;
41ade00f
JB		 2240 struct get_key_cookie cookie = {
2241 .error = 0,
2242 };
2243 void *hdr;
2244 struct sk_buff *msg;
2245
2246 if (info->attrs[NL80211_ATTR_KEY_IDX])
2247 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2248
3cfcf6ac 2249 if (key_idx > 5)
41ade00f
JB		 2250 return -EINVAL;
2251
2252 if (info->attrs[NL80211_ATTR_MAC])
2253 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2254
e31b8213
JB		 2255 pairwise = !!mac_addr;
2256 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2257 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2258 if (kt >= NUM_NL80211_KEYTYPES)
2259 return -EINVAL;
2260 if (kt != NL80211_KEYTYPE_GROUP &&
2261 kt != NL80211_KEYTYPE_PAIRWISE)
2262 return -EINVAL;
2263 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2264 }
2265
4c476991
JB		 2266 if (!rdev->ops->get_key)
2267 return -EOPNOTSUPP;
41ade00f 2268
fd2120ca 2269 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2270 if (!msg)
2271 return -ENOMEM;
41ade00f 2272
15e47304 2273 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2274 NL80211_CMD_NEW_KEY);
4c476991
JB		 2275 if (IS_ERR(hdr))
2276 return PTR_ERR(hdr);
41ade00f
JB		 2277
2278 cookie.msg = msg;
b9454e83 2279 cookie.idx = key_idx;
41ade00f 2280
9360ffd1
DM		 2281 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2282 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2283 goto nla_put_failure;
2284 if (mac_addr &&
2285 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2286 goto nla_put_failure;
41ade00f 2287
e31b8213
JB		 2288 if (pairwise && mac_addr &&
2289 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2290 return -ENOENT;
2291
e35e4d28
HG		 2292 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2293 get_key_callback);
41ade00f
JB		 2294
2295 if (err)
6c95e2a2 2296 goto free_msg;
41ade00f
JB		 2297
2298 if (cookie.error)
2299 goto nla_put_failure;
2300
2301 genlmsg_end(msg, hdr);
4c476991 2302 return genlmsg_reply(msg, info);
41ade00f
JB		 2303
2304 nla_put_failure:
2305 err = -ENOBUFS;
6c95e2a2 2306 free_msg:
41ade00f 2307 nlmsg_free(msg);
41ade00f
JB		 2308 return err;
2309}
2310
2311static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2312{
4c476991 2313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2314 struct key_parse key;
41ade00f 2315 int err;
4c476991 2316 struct net_device *dev = info->user_ptr[1];
41ade00f 2317
b9454e83
JB		 2318 err = nl80211_parse_key(info, &key);
2319 if (err)
2320 return err;
41ade00f 2321
b9454e83 2322 if (key.idx < 0)
41ade00f
JB		 2323 return -EINVAL;
2324
b9454e83
JB		 2325 /* only support setting default key */
2326 if (!key.def && !key.defmgmt)
41ade00f
JB		 2327 return -EINVAL;
2328
dbd2fd65 2329 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2330
dbd2fd65
JB		 2331 if (key.def) {
2332 if (!rdev->ops->set_default_key) {
2333 err = -EOPNOTSUPP;
2334 goto out;
2335 }
41ade00f 2336
dbd2fd65
JB		 2337 err = nl80211_key_allowed(dev->ieee80211_ptr);
2338 if (err)
2339 goto out;
2340
e35e4d28 2341 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2342 key.def_uni, key.def_multi);
2343
2344 if (err)
2345 goto out;
fffd0934 2346
3d23e349 2347#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2348 dev->ieee80211_ptr->wext.default_key = key.idx;
2349#endif
2350 } else {
2351 if (key.def_uni || !key.def_multi) {
2352 err = -EINVAL;
2353 goto out;
2354 }
2355
2356 if (!rdev->ops->set_default_mgmt_key) {
2357 err = -EOPNOTSUPP;
2358 goto out;
2359 }
2360
2361 err = nl80211_key_allowed(dev->ieee80211_ptr);
2362 if (err)
2363 goto out;
2364
e35e4d28 2365 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2366 if (err)
2367 goto out;
2368
2369#ifdef CONFIG_CFG80211_WEXT
2370 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2371#endif
dbd2fd65
JB		 2372 }
2373
2374 out:
fffd0934 2375 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2376
41ade00f
JB		 2377 return err;
2378}
2379
2380static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2381{
4c476991 2382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2383 int err;
4c476991 2384 struct net_device *dev = info->user_ptr[1];
b9454e83 2385 struct key_parse key;
e31b8213 2386 const u8 *mac_addr = NULL;
41ade00f 2387
b9454e83
JB		 2388 err = nl80211_parse_key(info, &key);
2389 if (err)
2390 return err;
41ade00f 2391
b9454e83 2392 if (!key.p.key)
41ade00f
JB		 2393 return -EINVAL;
2394
41ade00f
JB		 2395 if (info->attrs[NL80211_ATTR_MAC])
2396 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2397
e31b8213
JB		 2398 if (key.type == -1) {
2399 if (mac_addr)
2400 key.type = NL80211_KEYTYPE_PAIRWISE;
2401 else
2402 key.type = NL80211_KEYTYPE_GROUP;
2403 }
2404
2405 /* for now */
2406 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2407 key.type != NL80211_KEYTYPE_GROUP)
2408 return -EINVAL;
2409
4c476991
JB		 2410 if (!rdev->ops->add_key)
2411 return -EOPNOTSUPP;
25e47c18 2412
e31b8213
JB		 2413 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2414 key.type == NL80211_KEYTYPE_PAIRWISE,
2415 mac_addr))
4c476991 2416 return -EINVAL;
41ade00f 2417
fffd0934
JB		 2418 wdev_lock(dev->ieee80211_ptr);
2419 err = nl80211_key_allowed(dev->ieee80211_ptr);
2420 if (!err)
e35e4d28
HG		 2421 err = rdev_add_key(rdev, dev, key.idx,
2422 key.type == NL80211_KEYTYPE_PAIRWISE,
2423 mac_addr, &key.p);
fffd0934 2424 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2425
41ade00f
JB		 2426 return err;
2427}
2428
2429static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2430{
4c476991 2431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2432 int err;
4c476991 2433 struct net_device *dev = info->user_ptr[1];
41ade00f 2434 u8 *mac_addr = NULL;
b9454e83 2435 struct key_parse key;
41ade00f 2436
b9454e83
JB		 2437 err = nl80211_parse_key(info, &key);
2438 if (err)
2439 return err;
41ade00f
JB		 2440
2441 if (info->attrs[NL80211_ATTR_MAC])
2442 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2443
e31b8213
JB		 2444 if (key.type == -1) {
2445 if (mac_addr)
2446 key.type = NL80211_KEYTYPE_PAIRWISE;
2447 else
2448 key.type = NL80211_KEYTYPE_GROUP;
2449 }
2450
2451 /* for now */
2452 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2453 key.type != NL80211_KEYTYPE_GROUP)
2454 return -EINVAL;
2455
4c476991
JB		 2456 if (!rdev->ops->del_key)
2457 return -EOPNOTSUPP;
41ade00f 2458
fffd0934
JB		 2459 wdev_lock(dev->ieee80211_ptr);
2460 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2461
2462 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2463 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2464 err = -ENOENT;
2465
fffd0934 2466 if (!err)
e35e4d28
HG		 2467 err = rdev_del_key(rdev, dev, key.idx,
2468 key.type == NL80211_KEYTYPE_PAIRWISE,
2469 mac_addr);
41ade00f 2470
3d23e349 2471#ifdef CONFIG_CFG80211_WEXT
08645126 2472 if (!err) {
b9454e83 2473 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2474 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2475 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2476 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2477 }
2478#endif
fffd0934 2479 wdev_unlock(dev->ieee80211_ptr);
08645126 2480
41ade00f
JB		 2481 return err;
2482}
2483
8860020e
JB		 2484static int nl80211_parse_beacon(struct genl_info *info,
2485 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2486{
8860020e 2487 bool haveinfo = false;
ed1b6cc7 2488
9946ecfb
JM		 2489 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2490 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2491 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2492 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2493 return -EINVAL;
2494
8860020e 2495 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2496
ed1b6cc7 2497 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2498 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2499 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2500 if (!bcn->head_len)
2501 return -EINVAL;
2502 haveinfo = true;
ed1b6cc7
JB		 2503 }
2504
2505 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2506 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2507 bcn->tail_len =
ed1b6cc7 2508 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2509 haveinfo = true;
ed1b6cc7
JB		 2510 }
2511
4c476991
JB		 2512 if (!haveinfo)
2513 return -EINVAL;
3b85875a 2514
9946ecfb 2515 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2516 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2517 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2518 }
2519
2520 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2521 bcn->proberesp_ies =
9946ecfb 2522 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2523 bcn->proberesp_ies_len =
9946ecfb
JM		 2524 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2525 }
2526
2527 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2528 bcn->assocresp_ies =
9946ecfb 2529 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2530 bcn->assocresp_ies_len =
9946ecfb
JM		 2531 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2532 }
2533
00f740e1 2534 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2535 bcn->probe_resp =
00f740e1 2536 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2537 bcn->probe_resp_len =
00f740e1
AN		 2538 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2539 }
2540
8860020e
JB		 2541 return 0;
2542}
2543
46c1dd0c
FF		 2544static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2545 struct cfg80211_ap_settings *params)
2546{
2547 struct wireless_dev *wdev;
2548 bool ret = false;
2549
2550 mutex_lock(&rdev->devlist_mtx);
2551
89a54e48 2552 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2553 if (wdev->iftype != NL80211_IFTYPE_AP &&
2554 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2555 continue;
2556
683b6d3b 2557 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2558 continue;
2559
683b6d3b 2560 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2561 ret = true;
2562 break;
2563 }
2564
2565 mutex_unlock(&rdev->devlist_mtx);
2566
2567 return ret;
2568}
2569
e39e5b5e
JM		 2570static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2571 enum nl80211_auth_type auth_type,
2572 enum nl80211_commands cmd)
2573{
2574 if (auth_type > NL80211_AUTHTYPE_MAX)
2575 return false;
2576
2577 switch (cmd) {
2578 case NL80211_CMD_AUTHENTICATE:
2579 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2580 auth_type == NL80211_AUTHTYPE_SAE)
2581 return false;
2582 return true;
2583 case NL80211_CMD_CONNECT:
2584 case NL80211_CMD_START_AP:
2585 /* SAE not supported yet */
2586 if (auth_type == NL80211_AUTHTYPE_SAE)
2587 return false;
2588 return true;
2589 default:
2590 return false;
2591 }
2592}
2593
8860020e
JB		 2594static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2595{
2596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2597 struct net_device *dev = info->user_ptr[1];
2598 struct wireless_dev *wdev = dev->ieee80211_ptr;
2599 struct cfg80211_ap_settings params;
2600 int err;
2601
2602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2603 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2604 return -EOPNOTSUPP;
2605
2606 if (!rdev->ops->start_ap)
2607 return -EOPNOTSUPP;
2608
2609 if (wdev->beacon_interval)
2610 return -EALREADY;
2611
2612 memset(&params, 0, sizeof(params));
2613
2614 /* these are required for START_AP */
2615 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2616 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2617 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2618 return -EINVAL;
2619
2620 err = nl80211_parse_beacon(info, &params.beacon);
2621 if (err)
2622 return err;
2623
2624 params.beacon_interval =
2625 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2626 params.dtim_period =
2627 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2628
2629 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2630 if (err)
2631 return err;
2632
2633 /*
2634 * In theory, some of these attributes should be required here
2635 * but since they were not used when the command was originally
2636 * added, keep them optional for old user space programs to let
2637 * them continue to work with drivers that do not need the
2638 * additional information -- drivers must check!
2639 */
2640 if (info->attrs[NL80211_ATTR_SSID]) {
2641 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2642 params.ssid_len =
2643 nla_len(info->attrs[NL80211_ATTR_SSID]);
2644 if (params.ssid_len == 0 ||
2645 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2646 return -EINVAL;
2647 }
2648
2649 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2650 params.hidden_ssid = nla_get_u32(
2651 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2652 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2653 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2654 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2655 return -EINVAL;
2656 }
2657
2658 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2659
2660 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2661 params.auth_type = nla_get_u32(
2662 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 2663 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2664 NL80211_CMD_START_AP))
8860020e
JB		 2665 return -EINVAL;
2666 } else
2667 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2668
2669 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2670 NL80211_MAX_NR_CIPHER_SUITES);
2671 if (err)
2672 return err;
2673
1b658f11
VT		 2674 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2675 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2676 return -EOPNOTSUPP;
2677 params.inactivity_timeout = nla_get_u16(
2678 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2679 }
2680
53cabad7
JB		 2681 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2682 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2683 return -EINVAL;
2684 params.p2p_ctwindow =
2685 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2686 if (params.p2p_ctwindow > 127)
2687 return -EINVAL;
2688 if (params.p2p_ctwindow != 0 &&
2689 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2690 return -EINVAL;
2691 }
2692
2693 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2694 u8 tmp;
2695
2696 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2697 return -EINVAL;
2698 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2699 if (tmp > 1)
2700 return -EINVAL;
2701 params.p2p_opp_ps = tmp;
2702 if (params.p2p_opp_ps != 0 &&
2703 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2704 return -EINVAL;
2705 }
2706
aa430da4 2707 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 2708 err = nl80211_parse_chandef(rdev, info, &params.chandef);
2709 if (err)
2710 return err;
2711 } else if (wdev->preset_chandef.chan) {
2712 params.chandef = wdev->preset_chandef;
46c1dd0c 2713 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2714 return -EINVAL;
2715
683b6d3b 2716 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 2717 return -EINVAL;
2718
e4e32459 2719 mutex_lock(&rdev->devlist_mtx);
683b6d3b 2720 err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan,
e4e32459
MK		 2721 CHAN_MODE_SHARED);
2722 mutex_unlock(&rdev->devlist_mtx);
2723
2724 if (err)
2725 return err;
2726
e35e4d28 2727 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 2728 if (!err) {
683b6d3b 2729 wdev->preset_chandef = params.chandef;
8860020e 2730 wdev->beacon_interval = params.beacon_interval;
683b6d3b 2731 wdev->channel = params.chandef.chan;
06e191e2
AQ		 2732 wdev->ssid_len = params.ssid_len;
2733 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 2734 }
56d1893d 2735 return err;
ed1b6cc7
JB		 2736}
2737
8860020e
JB		 2738static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2739{
2740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2741 struct net_device *dev = info->user_ptr[1];
2742 struct wireless_dev *wdev = dev->ieee80211_ptr;
2743 struct cfg80211_beacon_data params;
2744 int err;
2745
2746 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2747 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2748 return -EOPNOTSUPP;
2749
2750 if (!rdev->ops->change_beacon)
2751 return -EOPNOTSUPP;
2752
2753 if (!wdev->beacon_interval)
2754 return -EINVAL;
2755
2756 err = nl80211_parse_beacon(info, &params);
2757 if (err)
2758 return err;
2759
e35e4d28 2760 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 2761}
2762
2763static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2764{
4c476991
JB		 2765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2766 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2767
60771780 2768 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2769}
2770
5727ef1b
JB		 2771static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2772 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2773 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2774 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2775 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2776 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2777 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2778};
2779
eccb8e8f 2780static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2781 enum nl80211_iftype iftype,
eccb8e8f 2782 struct station_parameters *params)
5727ef1b
JB		 2783{
2784 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2785 struct nlattr *nla;
5727ef1b
JB		 2786 int flag;
2787
eccb8e8f
JB		 2788 /*
2789 * Try parsing the new attribute first so userspace
2790 * can specify both for older kernels.
2791 */
2792 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2793 if (nla) {
2794 struct nl80211_sta_flag_update *sta_flags;
2795
2796 sta_flags = nla_data(nla);
2797 params->sta_flags_mask = sta_flags->mask;
2798 params->sta_flags_set = sta_flags->set;
2799 if ((params->sta_flags_mask |
2800 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2801 return -EINVAL;
2802 return 0;
2803 }
2804
2805 /* if present, parse the old attribute */
5727ef1b 2806
eccb8e8f 2807 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2808 if (!nla)
2809 return 0;
2810
2811 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2812 nla, sta_flags_policy))
2813 return -EINVAL;
2814
bdd3ae3d
JB		 2815 /*
2816 * Only allow certain flags for interface types so that
2817 * other attributes are silently ignored. Remember that
2818 * this is backward compatibility code with old userspace
2819 * and shouldn't be hit in other cases anyway.
2820 */
2821 switch (iftype) {
2822 case NL80211_IFTYPE_AP:
2823 case NL80211_IFTYPE_AP_VLAN:
2824 case NL80211_IFTYPE_P2P_GO:
2825 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2826 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2827 BIT(NL80211_STA_FLAG_WME) |
2828 BIT(NL80211_STA_FLAG_MFP);
2829 break;
2830 case NL80211_IFTYPE_P2P_CLIENT:
2831 case NL80211_IFTYPE_STATION:
2832 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2833 BIT(NL80211_STA_FLAG_TDLS_PEER);
2834 break;
2835 case NL80211_IFTYPE_MESH_POINT:
2836 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2837 BIT(NL80211_STA_FLAG_MFP) |
2838 BIT(NL80211_STA_FLAG_AUTHORIZED);
2839 default:
2840 return -EINVAL;
2841 }
5727ef1b 2842
3383b5a6
JB		 2843 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2844 if (flags[flag]) {
eccb8e8f 2845 params->sta_flags_set |= (1<<flag);
5727ef1b 2846
3383b5a6
JB		 2847 /* no longer support new API additions in old API */
2848 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2849 return -EINVAL;
2850 }
2851 }
2852
5727ef1b
JB		 2853 return 0;
2854}
2855
c8dcfd8a
FF		 2856static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2857 int attr)
2858{
2859 struct nlattr *rate;
8eb41c8d
VK		 2860 u32 bitrate;
2861 u16 bitrate_compat;
c8dcfd8a
FF		 2862
2863 rate = nla_nest_start(msg, attr);
2864 if (!rate)
db9c64cf 2865 return false;
c8dcfd8a
FF		 2866
2867 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2868 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 2869 /* report 16-bit bitrate only if we can */
2870 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 2871 if (bitrate > 0 &&
2872 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
2873 return false;
2874 if (bitrate_compat > 0 &&
2875 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
2876 return false;
2877
2878 if (info->flags & RATE_INFO_FLAGS_MCS) {
2879 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
2880 return false;
2881 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2882 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2883 return false;
2884 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2885 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2886 return false;
2887 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
2888 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
2889 return false;
2890 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
2891 return false;
2892 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2893 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2894 return false;
2895 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
2896 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
2897 return false;
2898 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
2899 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
2900 return false;
2901 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
2902 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
2903 return false;
2904 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2905 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2906 return false;
2907 }
c8dcfd8a
FF		 2908
2909 nla_nest_end(msg, rate);
2910 return true;
c8dcfd8a
FF		 2911}
2912
15e47304 2913static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 2914 int flags,
2915 struct cfg80211_registered_device *rdev,
2916 struct net_device *dev,
98b62183 2917 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2918{
2919 void *hdr;
f4263c98 2920 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 2921
15e47304 2922 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 2923 if (!hdr)
2924 return -1;
2925
9360ffd1
DM		 2926 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2927 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2928 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2929 goto nla_put_failure;
f5ea9120 2930
2ec600d6
LCC		 2931 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2932 if (!sinfoattr)
fd5b74dc 2933 goto nla_put_failure;
9360ffd1
DM		 2934 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2935 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2936 sinfo->connected_time))
2937 goto nla_put_failure;
2938 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2939 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2940 sinfo->inactive_time))
2941 goto nla_put_failure;
2942 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2943 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2944 sinfo->rx_bytes))
2945 goto nla_put_failure;
2946 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2947 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2948 sinfo->tx_bytes))
2949 goto nla_put_failure;
2950 if ((sinfo->filled & STATION_INFO_LLID) &&
2951 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2952 goto nla_put_failure;
2953 if ((sinfo->filled & STATION_INFO_PLID) &&
2954 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2955 goto nla_put_failure;
2956 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2957 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2958 sinfo->plink_state))
2959 goto nla_put_failure;
66266b3a
JL		 2960 switch (rdev->wiphy.signal_type) {
2961 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2962 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2963 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2964 sinfo->signal))
2965 goto nla_put_failure;
2966 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2967 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2968 sinfo->signal_avg))
2969 goto nla_put_failure;
66266b3a
JL		 2970 break;
2971 default:
2972 break;
2973 }
420e7fab 2974 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2975 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2976 NL80211_STA_INFO_TX_BITRATE))
2977 goto nla_put_failure;
2978 }
2979 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2980 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2981 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2982 goto nla_put_failure;
420e7fab 2983 }
9360ffd1
DM		 2984 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2985 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2986 sinfo->rx_packets))
2987 goto nla_put_failure;
2988 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2989 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2990 sinfo->tx_packets))
2991 goto nla_put_failure;
2992 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2993 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2994 sinfo->tx_retries))
2995 goto nla_put_failure;
2996 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2997 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2998 sinfo->tx_failed))
2999 goto nla_put_failure;
3000 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3001 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3002 sinfo->beacon_loss_count))
3003 goto nla_put_failure;
3b1c5a53
MP		 3004 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3005 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3006 sinfo->local_pm))
3007 goto nla_put_failure;
3008 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3009 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3010 sinfo->peer_pm))
3011 goto nla_put_failure;
3012 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3013 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3014 sinfo->nonpeer_pm))
3015 goto nla_put_failure;
f4263c98
PS		 3016 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3017 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3018 if (!bss_param)
3019 goto nla_put_failure;
3020
9360ffd1
DM		 3021 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3022 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3023 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3024 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3025 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3026 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3027 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3028 sinfo->bss_param.dtim_period) ||
3029 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3030 sinfo->bss_param.beacon_interval))
3031 goto nla_put_failure;
f4263c98
PS		 3032
3033 nla_nest_end(msg, bss_param);
3034 }
9360ffd1
DM		 3035 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3036 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3037 sizeof(struct nl80211_sta_flag_update),
3038 &sinfo->sta_flags))
3039 goto nla_put_failure;
7eab0f64
JL		 3040 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3041 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3042 sinfo->t_offset))
3043 goto nla_put_failure;
2ec600d6 3044 nla_nest_end(msg, sinfoattr);
fd5b74dc 3045
9360ffd1
DM		 3046 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3047 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3048 sinfo->assoc_req_ies))
3049 goto nla_put_failure;
50d3dfb7 3050
fd5b74dc
JB		 3051 return genlmsg_end(msg, hdr);
3052
3053 nla_put_failure:
bc3ed28c
TG		 3054 genlmsg_cancel(msg, hdr);
3055 return -EMSGSIZE;
fd5b74dc
JB		 3056}
3057
2ec600d6 3058static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3059 struct netlink_callback *cb)
2ec600d6 3060{
2ec600d6
LCC		 3061 struct station_info sinfo;
3062 struct cfg80211_registered_device *dev;
bba95fef 3063 struct net_device *netdev;
2ec600d6 3064 u8 mac_addr[ETH_ALEN];
bba95fef 3065 int sta_idx = cb->args[1];
2ec600d6 3066 int err;
2ec600d6 3067
67748893
JB		 3068 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3069 if (err)
3070 return err;
bba95fef
JB		 3071
3072 if (!dev->ops->dump_station) {
eec60b03 3073 err = -EOPNOTSUPP;
bba95fef
JB		 3074 goto out_err;
3075 }
3076
bba95fef 3077 while (1) {
f612cedf 3078 memset(&sinfo, 0, sizeof(sinfo));
e35e4d28
HG		 3079 err = rdev_dump_station(dev, netdev, sta_idx,
3080 mac_addr, &sinfo);
bba95fef
JB		 3081 if (err == -ENOENT)
3082 break;
3083 if (err)
3b85875a 3084 goto out_err;
bba95fef
JB		 3085
3086 if (nl80211_send_station(skb,
15e47304 3087 NETLINK_CB(cb->skb).portid,
bba95fef 3088 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 3089 dev, netdev, mac_addr,
bba95fef
JB		 3090 &sinfo) < 0)
3091 goto out;
3092
3093 sta_idx++;
3094 }
3095
3096
3097 out:
3098 cb->args[1] = sta_idx;
3099 err = skb->len;
bba95fef 3100 out_err:
67748893 3101 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 3102
3103 return err;
2ec600d6 3104}
fd5b74dc 3105
5727ef1b
JB		 3106static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3107{
4c476991
JB		 3108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3109 struct net_device *dev = info->user_ptr[1];
2ec600d6 3110 struct station_info sinfo;
fd5b74dc
JB		 3111 struct sk_buff *msg;
3112 u8 *mac_addr = NULL;
4c476991 3113 int err;
fd5b74dc 3114
2ec600d6 3115 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3116
3117 if (!info->attrs[NL80211_ATTR_MAC])
3118 return -EINVAL;
3119
3120 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3121
4c476991
JB		 3122 if (!rdev->ops->get_station)
3123 return -EOPNOTSUPP;
3b85875a 3124
e35e4d28 3125 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3126 if (err)
4c476991 3127 return err;
2ec600d6 3128
fd2120ca 3129 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3130 if (!msg)
4c476991 3131 return -ENOMEM;
fd5b74dc 3132
15e47304 3133 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3134 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3135 nlmsg_free(msg);
3136 return -ENOBUFS;
3137 }
3b85875a 3138
4c476991 3139 return genlmsg_reply(msg, info);
5727ef1b
JB		 3140}
3141
3142/*
c258d2de 3143 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3144 */
80b99899
JB		 3145static struct net_device *get_vlan(struct genl_info *info,
3146 struct cfg80211_registered_device *rdev)
5727ef1b 3147{
463d0183 3148 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3149 struct net_device *v;
3150 int ret;
3151
3152 if (!vlanattr)
3153 return NULL;
3154
3155 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3156 if (!v)
3157 return ERR_PTR(-ENODEV);
3158
3159 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3160 ret = -EINVAL;
3161 goto error;
5727ef1b 3162 }
80b99899
JB		 3163
3164 if (!netif_running(v)) {
3165 ret = -ENETDOWN;
3166 goto error;
3167 }
3168
3169 return v;
3170 error:
3171 dev_put(v);
3172 return ERR_PTR(ret);
5727ef1b
JB		 3173}
3174
3175static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3176{
4c476991 3177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3178 int err;
4c476991 3179 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3180 struct station_parameters params;
3181 u8 *mac_addr = NULL;
3182
3183 memset(&params, 0, sizeof(params));
3184
3185 params.listen_interval = -1;
57cf8043 3186 params.plink_state = -1;
5727ef1b
JB		 3187
3188 if (info->attrs[NL80211_ATTR_STA_AID])
3189 return -EINVAL;
3190
3191 if (!info->attrs[NL80211_ATTR_MAC])
3192 return -EINVAL;
3193
3194 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3195
3196 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3197 params.supported_rates =
3198 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3199 params.supported_rates_len =
3200 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3201 }
3202
ba23d206
JB		 3203 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL] ||
3204 info->attrs[NL80211_ATTR_HT_CAPABILITY])
3205 return -EINVAL;
36aedc90 3206
bdd90d5e
JB		 3207 if (!rdev->ops->change_station)
3208 return -EOPNOTSUPP;
3209
bdd3ae3d 3210 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3211 return -EINVAL;
3212
2ec600d6
LCC		 3213 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3214 params.plink_action =
3215 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3216
9c3990aa
JC		 3217 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3218 params.plink_state =
3219 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3220
3b1c5a53
MP		 3221 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3222 enum nl80211_mesh_power_mode pm = nla_get_u32(
3223 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3224
3225 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3226 pm > NL80211_MESH_POWER_MAX)
3227 return -EINVAL;
3228
3229 params.local_pm = pm;
3230 }
3231
a97f4424
JB		 3232 switch (dev->ieee80211_ptr->iftype) {
3233 case NL80211_IFTYPE_AP:
3234 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3235 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3236 /* disallow mesh-specific things */
3237 if (params.plink_action)
bdd90d5e 3238 return -EINVAL;
3b1c5a53
MP		 3239 if (params.local_pm)
3240 return -EINVAL;
bdd90d5e
JB		 3241
3242 /* TDLS can't be set, ... */
3243 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3244 return -EINVAL;
3245 /*
3246 * ... but don't bother the driver with it. This works around
3247 * a hostapd/wpa_supplicant issue -- it always includes the
3248 * TLDS_PEER flag in the mask even for AP mode.
3249 */
3250 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3251
3252 /* accept only the listed bits */
3253 if (params.sta_flags_mask &
3254 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
d582cffb
JB		 3255 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3256 BIT(NL80211_STA_FLAG_ASSOCIATED) |
bdd90d5e
JB		 3257 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3258 BIT(NL80211_STA_FLAG_WME) |
3259 BIT(NL80211_STA_FLAG_MFP)))
3260 return -EINVAL;
3261
d582cffb
JB		 3262 /* but authenticated/associated only if driver handles it */
3263 if (!(rdev->wiphy.features &
3264 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3265 params.sta_flags_mask &
3266 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3267 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3268 return -EINVAL;
3269
ba23d206
JB		 3270 /* reject other things that can't change */
3271 if (params.supported_rates)
3272 return -EINVAL;
3273
bdd90d5e
JB		 3274 /* must be last in here for error handling */
3275 params.vlan = get_vlan(info, rdev);
3276 if (IS_ERR(params.vlan))
3277 return PTR_ERR(params.vlan);
a97f4424 3278 break;
074ac8df 3279 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3280 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3281 /*
3282 * Don't allow userspace to change the TDLS_PEER flag,
3283 * but silently ignore attempts to change it since we
3284 * don't have state here to verify that it doesn't try
3285 * to change the flag.
3286 */
3287 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 3288 /* fall through */
3289 case NL80211_IFTYPE_ADHOC:
3290 /* disallow things sta doesn't support */
3291 if (params.plink_action)
3292 return -EINVAL;
3b1c5a53
MP		 3293 if (params.local_pm)
3294 return -EINVAL;
bdd90d5e
JB		 3295 /* reject any changes other than AUTHORIZED */
3296 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3297 return -EINVAL;
a97f4424
JB		 3298 break;
3299 case NL80211_IFTYPE_MESH_POINT:
3300 /* disallow things mesh doesn't support */
3301 if (params.vlan)
bdd90d5e 3302 return -EINVAL;
ba23d206 3303 if (params.supported_rates)
bdd90d5e
JB		 3304 return -EINVAL;
3305 /*
3306 * No special handling for TDLS here -- the userspace
3307 * mesh code doesn't have this bug.
3308 */
b39c48fa
JC		 3309 if (params.sta_flags_mask &
3310 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3311 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3312 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3313 return -EINVAL;
a97f4424
JB		 3314 break;
3315 default:
bdd90d5e 3316 return -EOPNOTSUPP;
034d655e
JB		 3317 }
3318
bdd90d5e 3319 /* be aware of params.vlan when changing code here */
5727ef1b 3320
e35e4d28 3321 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3322
5727ef1b
JB		 3323 if (params.vlan)
3324 dev_put(params.vlan);
3b85875a 3325
5727ef1b
JB		 3326 return err;
3327}
3328
c75786c9
EP		 3329static struct nla_policy
3330nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3331 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3332 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3333};
3334
5727ef1b
JB		 3335static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3336{
4c476991 3337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3338 int err;
4c476991 3339 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3340 struct station_parameters params;
3341 u8 *mac_addr = NULL;
3342
3343 memset(&params, 0, sizeof(params));
3344
3345 if (!info->attrs[NL80211_ATTR_MAC])
3346 return -EINVAL;
3347
5727ef1b
JB		 3348 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3349 return -EINVAL;
3350
3351 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3352 return -EINVAL;
3353
0e956c13
TLSC		 3354 if (!info->attrs[NL80211_ATTR_STA_AID])
3355 return -EINVAL;
3356
5727ef1b
JB		 3357 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3358 params.supported_rates =
3359 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3360 params.supported_rates_len =
3361 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3362 params.listen_interval =
3363 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3364
0e956c13
TLSC		 3365 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3366 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3367 return -EINVAL;
51b50fbe 3368
36aedc90
JM		 3369 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3370 params.ht_capa =
3371 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3372
f461be3e
MP		 3373 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3374 params.vht_capa =
3375 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3376
96b78dff
JC		 3377 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3378 params.plink_action =
3379 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3380
bdd90d5e
JB		 3381 if (!rdev->ops->add_station)
3382 return -EOPNOTSUPP;
3383
bdd3ae3d 3384 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3385 return -EINVAL;
3386
bdd90d5e
JB		 3387 switch (dev->ieee80211_ptr->iftype) {
3388 case NL80211_IFTYPE_AP:
3389 case NL80211_IFTYPE_AP_VLAN:
3390 case NL80211_IFTYPE_P2P_GO:
3391 /* parse WME attributes if sta is WME capable */
3392 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3393 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3394 info->attrs[NL80211_ATTR_STA_WME]) {
3395 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3396 struct nlattr *nla;
3397
3398 nla = info->attrs[NL80211_ATTR_STA_WME];
3399 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3400 nl80211_sta_wme_policy);
3401 if (err)
3402 return err;
3403
3404 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3405 params.uapsd_queues =
3406 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3407 if (params.uapsd_queues &
3408 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3409 return -EINVAL;
c75786c9 3410
bdd90d5e
JB		 3411 if (tb[NL80211_STA_WME_MAX_SP])
3412 params.max_sp =
3413 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3414
bdd90d5e
JB		 3415 if (params.max_sp &
3416 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3417 return -EINVAL;
4319e193 3418
bdd90d5e
JB		 3419 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3420 }
3421 /* TDLS peers cannot be added */
3422 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3423 return -EINVAL;
bdd90d5e
JB		 3424 /* but don't bother the driver with it */
3425 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3426
d582cffb
JB		 3427 /* allow authenticated/associated only if driver handles it */
3428 if (!(rdev->wiphy.features &
3429 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3430 params.sta_flags_mask &
3431 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3432 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3433 return -EINVAL;
3434
bdd90d5e
JB		 3435 /* must be last in here for error handling */
3436 params.vlan = get_vlan(info, rdev);
3437 if (IS_ERR(params.vlan))
3438 return PTR_ERR(params.vlan);
3439 break;
3440 case NL80211_IFTYPE_MESH_POINT:
d582cffb
JB		 3441 /* associated is disallowed */
3442 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3443 return -EINVAL;
bdd90d5e
JB		 3444 /* TDLS peers cannot be added */
3445 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3446 return -EINVAL;
3447 break;
3448 case NL80211_IFTYPE_STATION:
d582cffb
JB		 3449 /* associated is disallowed */
3450 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3451 return -EINVAL;
bdd90d5e
JB		 3452 /* Only TDLS peers can be added */
3453 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3454 return -EINVAL;
3455 /* Can only add if TDLS ... */
3456 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3457 return -EOPNOTSUPP;
3458 /* ... with external setup is supported */
3459 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3460 return -EOPNOTSUPP;
3461 break;
3462 default:
3463 return -EOPNOTSUPP;
c75786c9
EP		 3464 }
3465
bdd90d5e 3466 /* be aware of params.vlan when changing code here */
5727ef1b 3467
e35e4d28 3468 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 3469
5727ef1b
JB		 3470 if (params.vlan)
3471 dev_put(params.vlan);
5727ef1b
JB		 3472 return err;
3473}
3474
3475static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3476{
4c476991
JB		 3477 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3478 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3479 u8 *mac_addr = NULL;
3480
3481 if (info->attrs[NL80211_ATTR_MAC])
3482 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3483
e80cf853 3484 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3485 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3486 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3487 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3488 return -EINVAL;
5727ef1b 3489
4c476991
JB		 3490 if (!rdev->ops->del_station)
3491 return -EOPNOTSUPP;
3b85875a 3492
e35e4d28 3493 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 3494}
3495
15e47304 3496static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3497 int flags, struct net_device *dev,
3498 u8 *dst, u8 *next_hop,
3499 struct mpath_info *pinfo)
3500{
3501 void *hdr;
3502 struct nlattr *pinfoattr;
3503
15e47304 3504 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3505 if (!hdr)
3506 return -1;
3507
9360ffd1
DM		 3508 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3509 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3510 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3511 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3512 goto nla_put_failure;
f5ea9120 3513
2ec600d6
LCC		 3514 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3515 if (!pinfoattr)
3516 goto nla_put_failure;
9360ffd1
DM		 3517 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3518 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3519 pinfo->frame_qlen))
3520 goto nla_put_failure;
3521 if (((pinfo->filled & MPATH_INFO_SN) &&
3522 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3523 ((pinfo->filled & MPATH_INFO_METRIC) &&
3524 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3525 pinfo->metric)) ||
3526 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3527 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3528 pinfo->exptime)) ||
3529 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3530 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3531 pinfo->flags)) ||
3532 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3533 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3534 pinfo->discovery_timeout)) ||
3535 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3536 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3537 pinfo->discovery_retries)))
3538 goto nla_put_failure;
2ec600d6
LCC		 3539
3540 nla_nest_end(msg, pinfoattr);
3541
3542 return genlmsg_end(msg, hdr);
3543
3544 nla_put_failure:
bc3ed28c
TG		 3545 genlmsg_cancel(msg, hdr);
3546 return -EMSGSIZE;
2ec600d6
LCC		 3547}
3548
3549static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3550 struct netlink_callback *cb)
2ec600d6 3551{
2ec600d6
LCC		 3552 struct mpath_info pinfo;
3553 struct cfg80211_registered_device *dev;
bba95fef 3554 struct net_device *netdev;
2ec600d6
LCC		 3555 u8 dst[ETH_ALEN];
3556 u8 next_hop[ETH_ALEN];
bba95fef 3557 int path_idx = cb->args[1];
2ec600d6 3558 int err;
2ec600d6 3559
67748893
JB		 3560 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3561 if (err)
3562 return err;
bba95fef
JB		 3563
3564 if (!dev->ops->dump_mpath) {
eec60b03 3565 err = -EOPNOTSUPP;
bba95fef
JB		 3566 goto out_err;
3567 }
3568
eec60b03
JM		 3569 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3570 err = -EOPNOTSUPP;
0448b5fc 3571 goto out_err;
eec60b03
JM		 3572 }
3573
bba95fef 3574 while (1) {
e35e4d28
HG		 3575 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3576 &pinfo);
bba95fef 3577 if (err == -ENOENT)
2ec600d6 3578 break;
bba95fef 3579 if (err)
3b85875a 3580 goto out_err;
2ec600d6 3581
15e47304 3582 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3583 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3584 netdev, dst, next_hop,
3585 &pinfo) < 0)
3586 goto out;
2ec600d6 3587
bba95fef 3588 path_idx++;
2ec600d6 3589 }
2ec600d6 3590
2ec600d6 3591
bba95fef
JB		 3592 out:
3593 cb->args[1] = path_idx;
3594 err = skb->len;
bba95fef 3595 out_err:
67748893 3596 nl80211_finish_netdev_dump(dev);
bba95fef 3597 return err;
2ec600d6
LCC		 3598}
3599
3600static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3601{
4c476991 3602 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3603 int err;
4c476991 3604 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3605 struct mpath_info pinfo;
3606 struct sk_buff *msg;
3607 u8 *dst = NULL;
3608 u8 next_hop[ETH_ALEN];
3609
3610 memset(&pinfo, 0, sizeof(pinfo));
3611
3612 if (!info->attrs[NL80211_ATTR_MAC])
3613 return -EINVAL;
3614
3615 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3616
4c476991
JB		 3617 if (!rdev->ops->get_mpath)
3618 return -EOPNOTSUPP;
2ec600d6 3619
4c476991
JB		 3620 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3621 return -EOPNOTSUPP;
eec60b03 3622
e35e4d28 3623 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 3624 if (err)
4c476991 3625 return err;
2ec600d6 3626
fd2120ca 3627 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3628 if (!msg)
4c476991 3629 return -ENOMEM;
2ec600d6 3630
15e47304 3631 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3632 dev, dst, next_hop, &pinfo) < 0) {
3633 nlmsg_free(msg);
3634 return -ENOBUFS;
3635 }
3b85875a 3636
4c476991 3637 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3638}
3639
3640static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3641{
4c476991
JB		 3642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3643 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3644 u8 *dst = NULL;
3645 u8 *next_hop = NULL;
3646
3647 if (!info->attrs[NL80211_ATTR_MAC])
3648 return -EINVAL;
3649
3650 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3651 return -EINVAL;
3652
3653 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3654 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3655
4c476991
JB		 3656 if (!rdev->ops->change_mpath)
3657 return -EOPNOTSUPP;
35a8efe1 3658
4c476991
JB		 3659 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3660 return -EOPNOTSUPP;
2ec600d6 3661
e35e4d28 3662 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 3663}
4c476991 3664
2ec600d6
LCC		 3665static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3666{
4c476991
JB		 3667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3668 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3669 u8 *dst = NULL;
3670 u8 *next_hop = NULL;
3671
3672 if (!info->attrs[NL80211_ATTR_MAC])
3673 return -EINVAL;
3674
3675 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3676 return -EINVAL;
3677
3678 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3679 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3680
4c476991
JB		 3681 if (!rdev->ops->add_mpath)
3682 return -EOPNOTSUPP;
35a8efe1 3683
4c476991
JB		 3684 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3685 return -EOPNOTSUPP;
2ec600d6 3686
e35e4d28 3687 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 3688}
3689
3690static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3691{
4c476991
JB		 3692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3693 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3694 u8 *dst = NULL;
3695
3696 if (info->attrs[NL80211_ATTR_MAC])
3697 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3698
4c476991
JB		 3699 if (!rdev->ops->del_mpath)
3700 return -EOPNOTSUPP;
3b85875a 3701
e35e4d28 3702 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 3703}
3704
9f1ba906
JM		 3705static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3706{
4c476991
JB		 3707 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3708 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3709 struct bss_parameters params;
3710
3711 memset(&params, 0, sizeof(params));
3712 /* default to not changing parameters */
3713 params.use_cts_prot = -1;
3714 params.use_short_preamble = -1;
3715 params.use_short_slot_time = -1;
fd8aaaf3 3716 params.ap_isolate = -1;
50b12f59 3717 params.ht_opmode = -1;
53cabad7
JB		 3718 params.p2p_ctwindow = -1;
3719 params.p2p_opp_ps = -1;
9f1ba906
JM		 3720
3721 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3722 params.use_cts_prot =
3723 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3724 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3725 params.use_short_preamble =
3726 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3727 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3728 params.use_short_slot_time =
3729 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3730 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3731 params.basic_rates =
3732 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3733 params.basic_rates_len =
3734 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3735 }
fd8aaaf3
FF		 3736 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3737 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3738 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3739 params.ht_opmode =
3740 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3741
53cabad7
JB		 3742 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3743 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3744 return -EINVAL;
3745 params.p2p_ctwindow =
3746 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3747 if (params.p2p_ctwindow < 0)
3748 return -EINVAL;
3749 if (params.p2p_ctwindow != 0 &&
3750 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3751 return -EINVAL;
3752 }
3753
3754 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3755 u8 tmp;
3756
3757 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3758 return -EINVAL;
3759 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3760 if (tmp > 1)
3761 return -EINVAL;
3762 params.p2p_opp_ps = tmp;
3763 if (params.p2p_opp_ps &&
3764 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3765 return -EINVAL;
3766 }
3767
4c476991
JB		 3768 if (!rdev->ops->change_bss)
3769 return -EOPNOTSUPP;
9f1ba906 3770
074ac8df 3771 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3772 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3773 return -EOPNOTSUPP;
3b85875a 3774
e35e4d28 3775 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 3776}
3777
b54452b0 3778static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3779 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3780 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3781 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3782 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3783 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3784 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3785};
3786
3787static int parse_reg_rule(struct nlattr *tb[],
3788 struct ieee80211_reg_rule *reg_rule)
3789{
3790 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3791 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3792
3793 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3794 return -EINVAL;
3795 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3796 return -EINVAL;
3797 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3798 return -EINVAL;
3799 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3800 return -EINVAL;
3801 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3802 return -EINVAL;
3803
3804 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3805
3806 freq_range->start_freq_khz =
3807 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3808 freq_range->end_freq_khz =
3809 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3810 freq_range->max_bandwidth_khz =
3811 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3812
3813 power_rule->max_eirp =
3814 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3815
3816 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3817 power_rule->max_antenna_gain =
3818 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3819
3820 return 0;
3821}
3822
3823static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3824{
3825 int r;
3826 char *data = NULL;
57b5ce07 3827 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 3828
80778f18
LR		 3829 /*
3830 * You should only get this when cfg80211 hasn't yet initialized
3831 * completely when built-in to the kernel right between the time
3832 * window between nl80211_init() and regulatory_init(), if that is
3833 * even possible.
3834 */
458f4f9e 3835 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 3836 return -EINPROGRESS;
80778f18 3837
fe33eb39
LR		 3838 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3839 return -EINVAL;
b2e1b302
LR		 3840
3841 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3842
57b5ce07
LR		 3843 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3844 user_reg_hint_type =
3845 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3846 else
3847 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3848
3849 switch (user_reg_hint_type) {
3850 case NL80211_USER_REG_HINT_USER:
3851 case NL80211_USER_REG_HINT_CELL_BASE:
3852 break;
3853 default:
3854 return -EINVAL;
3855 }
3856
3857 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 3858
b2e1b302
LR		 3859 return r;
3860}
3861
24bdd9f4 3862static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3863 struct genl_info *info)
93da9cc1 3864{
4c476991 3865 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3866 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3867 struct wireless_dev *wdev = dev->ieee80211_ptr;
3868 struct mesh_config cur_params;
3869 int err = 0;
93da9cc1 3870 void *hdr;
3871 struct nlattr *pinfoattr;
3872 struct sk_buff *msg;
3873
29cbe68c
JB		 3874 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3875 return -EOPNOTSUPP;
3876
24bdd9f4 3877 if (!rdev->ops->get_mesh_config)
4c476991 3878 return -EOPNOTSUPP;
f3f92586 3879
29cbe68c
JB		 3880 wdev_lock(wdev);
3881 /* If not connected, get default parameters */
3882 if (!wdev->mesh_id_len)
3883 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3884 else
e35e4d28 3885 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 3886 wdev_unlock(wdev);
3887
93da9cc1 3888 if (err)
4c476991 3889 return err;
93da9cc1 3890
3891 /* Draw up a netlink message to send back */
fd2120ca 3892 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3893 if (!msg)
3894 return -ENOMEM;
15e47304 3895 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 3896 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3897 if (!hdr)
efe1cf0c 3898 goto out;
24bdd9f4 3899 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3900 if (!pinfoattr)
3901 goto nla_put_failure;
9360ffd1
DM		 3902 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3903 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3904 cur_params.dot11MeshRetryTimeout) ||
3905 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3906 cur_params.dot11MeshConfirmTimeout) ||
3907 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3908 cur_params.dot11MeshHoldingTimeout) ||
3909 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3910 cur_params.dot11MeshMaxPeerLinks) ||
3911 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3912 cur_params.dot11MeshMaxRetries) ||
3913 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3914 cur_params.dot11MeshTTL) ||
3915 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3916 cur_params.element_ttl) ||
3917 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3918 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3919 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3920 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3921 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3922 cur_params.dot11MeshHWMPmaxPREQretries) ||
3923 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3924 cur_params.path_refresh_time) ||
3925 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3926 cur_params.min_discovery_timeout) ||
3927 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3928 cur_params.dot11MeshHWMPactivePathTimeout) ||
3929 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3930 cur_params.dot11MeshHWMPpreqMinInterval) ||
3931 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3932 cur_params.dot11MeshHWMPperrMinInterval) ||
3933 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3934 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3935 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3936 cur_params.dot11MeshHWMPRootMode) ||
3937 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3938 cur_params.dot11MeshHWMPRannInterval) ||
3939 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3940 cur_params.dot11MeshGateAnnouncementProtocol) ||
3941 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3942 cur_params.dot11MeshForwarding) ||
3943 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3944 cur_params.rssi_threshold) ||
3945 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3946 cur_params.ht_opmode) ||
3947 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3948 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3949 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3950 cur_params.dot11MeshHWMProotInterval) ||
3951 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 3952 cur_params.dot11MeshHWMPconfirmationInterval) ||
3953 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
3954 cur_params.power_mode) ||
3955 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
3956 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 3957 goto nla_put_failure;
93da9cc1 3958 nla_nest_end(msg, pinfoattr);
3959 genlmsg_end(msg, hdr);
4c476991 3960 return genlmsg_reply(msg, info);
93da9cc1 3961
3b85875a 3962 nla_put_failure:
93da9cc1 3963 genlmsg_cancel(msg, hdr);
efe1cf0c 3964 out:
d080e275 3965 nlmsg_free(msg);
4c476991 3966 return -ENOBUFS;
93da9cc1 3967}
3968
b54452b0 3969static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3970 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3971 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3972 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3973 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3974 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3975 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3976 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3977 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3978 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3979 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3980 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3981 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3982 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3983 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3984 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3985 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3986 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3987 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3988 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3989 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3990 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3991 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3992 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3993 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3994 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 3995 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
3996 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 3997};
3998
c80d545d
JC		 3999static const struct nla_policy
4000 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4001 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4002 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4003 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4004 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 4005 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4006 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4007 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4008};
4009
24bdd9f4 4010static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4011 struct mesh_config *cfg,
4012 u32 *mask_out)
93da9cc1 4013{
93da9cc1 4014 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4015 u32 mask = 0;
93da9cc1 4016
ea54fba2
MP		 4017#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4018do { \
4019 if (tb[attr]) { \
4020 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4021 return -EINVAL; \
4022 cfg->param = fn(tb[attr]); \
4023 mask |= (1 << (attr - 1)); \
4024 } \
4025} while (0)
bd90fdcc
JB		 4026
4027
24bdd9f4 4028 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4029 return -EINVAL;
4030 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4031 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4032 nl80211_meshconf_params_policy))
93da9cc1 4033 return -EINVAL;
4034
93da9cc1 4035 /* This makes sure that there aren't more than 32 mesh config
4036 * parameters (otherwise our bitfield scheme would not work.) */
4037 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4038
4039 /* Fill in the params struct */
ea54fba2 4040 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4041 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4042 nla_get_u16);
ea54fba2 4043 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4044 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4045 nla_get_u16);
ea54fba2 4046 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4047 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4048 nla_get_u16);
ea54fba2 4049 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4050 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4051 nla_get_u16);
ea54fba2 4052 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4053 mask, NL80211_MESHCONF_MAX_RETRIES,
4054 nla_get_u8);
ea54fba2 4055 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4056 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4057 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4058 mask, NL80211_MESHCONF_ELEMENT_TTL,
4059 nla_get_u8);
ea54fba2 4060 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4061 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4062 nla_get_u8);
ea54fba2
MP		 4063 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4064 1, 255, mask,
a4f606ea
CYY		 4065 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4066 nla_get_u32);
ea54fba2 4067 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4068 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4069 nla_get_u8);
ea54fba2 4070 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4071 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4072 nla_get_u32);
ea54fba2 4073 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4074 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4075 nla_get_u16);
ea54fba2
MP		 4076 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4077 1, 65535, mask,
a4f606ea
CYY		 4078 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4079 nla_get_u32);
93da9cc1 4080 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4081 1, 65535, mask,
4082 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4083 nla_get_u16);
dca7e943 4084 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4085 1, 65535, mask,
4086 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4087 nla_get_u16);
93da9cc1 4088 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4089 dot11MeshHWMPnetDiameterTraversalTime,
4090 1, 65535, mask,
a4f606ea
CYY		 4091 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4092 nla_get_u16);
ea54fba2
MP		 4093 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4094 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4095 nla_get_u8);
4096 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4097 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4098 nla_get_u16);
63c5723b 4099 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4100 dot11MeshGateAnnouncementProtocol, 0, 1,
4101 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4102 nla_get_u8);
ea54fba2 4103 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4104 mask, NL80211_MESHCONF_FORWARDING,
4105 nla_get_u8);
ea54fba2 4106 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4107 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4108 nla_get_u32);
ea54fba2 4109 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4110 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4111 nla_get_u16);
4112 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4113 1, 65535, mask,
ac1073a6
CYY		 4114 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4115 nla_get_u32);
ea54fba2 4116 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4117 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4118 nla_get_u16);
4119 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4120 dot11MeshHWMPconfirmationInterval,
4121 1, 65535, mask,
728b19e5 4122 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4123 nla_get_u16);
3b1c5a53
MP		 4124 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4125 NL80211_MESH_POWER_ACTIVE,
4126 NL80211_MESH_POWER_MAX,
4127 mask, NL80211_MESHCONF_POWER_MODE,
4128 nla_get_u32);
4129 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4130 0, 65535, mask,
4131 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4132 if (mask_out)
4133 *mask_out = mask;
c80d545d 4134
bd90fdcc
JB		 4135 return 0;
4136
4137#undef FILL_IN_MESH_PARAM_IF_SET
4138}
4139
c80d545d
JC		 4140static int nl80211_parse_mesh_setup(struct genl_info *info,
4141 struct mesh_setup *setup)
4142{
4143 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4144
4145 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4146 return -EINVAL;
4147 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4148 info->attrs[NL80211_ATTR_MESH_SETUP],
4149 nl80211_mesh_setup_params_policy))
4150 return -EINVAL;
4151
d299a1f2
JC		 4152 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4153 setup->sync_method =
4154 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4155 IEEE80211_SYNC_METHOD_VENDOR :
4156 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4157
c80d545d
JC		 4158 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4159 setup->path_sel_proto =
4160 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4161 IEEE80211_PATH_PROTOCOL_VENDOR :
4162 IEEE80211_PATH_PROTOCOL_HWMP;
4163
4164 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4165 setup->path_metric =
4166 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4167 IEEE80211_PATH_METRIC_VENDOR :
4168 IEEE80211_PATH_METRIC_AIRTIME;
4169
581a8b0f
JC		 4170
4171 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4172 struct nlattr *ieattr =
581a8b0f 4173 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4174 if (!is_valid_ie_attr(ieattr))
4175 return -EINVAL;
581a8b0f
JC		 4176 setup->ie = nla_data(ieattr);
4177 setup->ie_len = nla_len(ieattr);
c80d545d 4178 }
b130e5ce
JC		 4179 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4180 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4181
4182 return 0;
4183}
4184
24bdd9f4 4185static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4186 struct genl_info *info)
bd90fdcc
JB		 4187{
4188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4189 struct net_device *dev = info->user_ptr[1];
29cbe68c 4190 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4191 struct mesh_config cfg;
4192 u32 mask;
4193 int err;
4194
29cbe68c
JB		 4195 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4196 return -EOPNOTSUPP;
4197
24bdd9f4 4198 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4199 return -EOPNOTSUPP;
4200
24bdd9f4 4201 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4202 if (err)
4203 return err;
4204
29cbe68c
JB		 4205 wdev_lock(wdev);
4206 if (!wdev->mesh_id_len)
4207 err = -ENOLINK;
4208
4209 if (!err)
e35e4d28 4210 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4211
4212 wdev_unlock(wdev);
4213
4214 return err;
93da9cc1 4215}
4216
f130347c
LR		 4217static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4218{
458f4f9e 4219 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4220 struct sk_buff *msg;
4221 void *hdr = NULL;
4222 struct nlattr *nl_reg_rules;
4223 unsigned int i;
4224 int err = -EINVAL;
4225
a1794390 4226 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4227
4228 if (!cfg80211_regdomain)
4229 goto out;
4230
fd2120ca 4231 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4232 if (!msg) {
4233 err = -ENOBUFS;
4234 goto out;
4235 }
4236
15e47304 4237 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4238 NL80211_CMD_GET_REG);
4239 if (!hdr)
efe1cf0c 4240 goto put_failure;
f130347c 4241
57b5ce07
LR		 4242 if (reg_last_request_cell_base() &&
4243 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4244 NL80211_USER_REG_HINT_CELL_BASE))
4245 goto nla_put_failure;
4246
458f4f9e
JB		 4247 rcu_read_lock();
4248 regdom = rcu_dereference(cfg80211_regdomain);
4249
4250 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4251 (regdom->dfs_region &&
4252 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4253 goto nla_put_failure_rcu;
4254
f130347c
LR		 4255 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4256 if (!nl_reg_rules)
458f4f9e 4257 goto nla_put_failure_rcu;
f130347c 4258
458f4f9e 4259 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4260 struct nlattr *nl_reg_rule;
4261 const struct ieee80211_reg_rule *reg_rule;
4262 const struct ieee80211_freq_range *freq_range;
4263 const struct ieee80211_power_rule *power_rule;
4264
458f4f9e 4265 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4266 freq_range = &reg_rule->freq_range;
4267 power_rule = &reg_rule->power_rule;
4268
4269 nl_reg_rule = nla_nest_start(msg, i);
4270 if (!nl_reg_rule)
458f4f9e 4271 goto nla_put_failure_rcu;
f130347c 4272
9360ffd1
DM		 4273 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4274 reg_rule->flags) ||
4275 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4276 freq_range->start_freq_khz) ||
4277 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4278 freq_range->end_freq_khz) ||
4279 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4280 freq_range->max_bandwidth_khz) ||
4281 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4282 power_rule->max_antenna_gain) ||
4283 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4284 power_rule->max_eirp))
458f4f9e 4285 goto nla_put_failure_rcu;
f130347c
LR		 4286
4287 nla_nest_end(msg, nl_reg_rule);
4288 }
458f4f9e 4289 rcu_read_unlock();
f130347c
LR		 4290
4291 nla_nest_end(msg, nl_reg_rules);
4292
4293 genlmsg_end(msg, hdr);
134e6375 4294 err = genlmsg_reply(msg, info);
f130347c
LR		 4295 goto out;
4296
458f4f9e
JB		 4297nla_put_failure_rcu:
4298 rcu_read_unlock();
f130347c
LR		 4299nla_put_failure:
4300 genlmsg_cancel(msg, hdr);
efe1cf0c 4301put_failure:
d080e275 4302 nlmsg_free(msg);
f130347c
LR		 4303 err = -EMSGSIZE;
4304out:
a1794390 4305 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4306 return err;
4307}
4308
b2e1b302
LR		 4309static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4310{
4311 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4312 struct nlattr *nl_reg_rule;
4313 char *alpha2 = NULL;
4314 int rem_reg_rules = 0, r = 0;
4315 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4316 u8 dfs_region = 0;
b2e1b302
LR		 4317 struct ieee80211_regdomain *rd = NULL;
4318
4319 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4320 return -EINVAL;
4321
4322 if (!info->attrs[NL80211_ATTR_REG_RULES])
4323 return -EINVAL;
4324
4325 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4326
8b60b078
LR		 4327 if (info->attrs[NL80211_ATTR_DFS_REGION])
4328 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4329
b2e1b302 4330 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4331 rem_reg_rules) {
b2e1b302
LR		 4332 num_rules++;
4333 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4334 return -EINVAL;
b2e1b302
LR		 4335 }
4336
b2e1b302 4337 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4338 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4339
4340 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4341 if (!rd)
4342 return -ENOMEM;
b2e1b302
LR		 4343
4344 rd->n_reg_rules = num_rules;
4345 rd->alpha2[0] = alpha2[0];
4346 rd->alpha2[1] = alpha2[1];
4347
8b60b078
LR		 4348 /*
4349 * Disable DFS master mode if the DFS region was
4350 * not supported or known on this kernel.
4351 */
4352 if (reg_supported_dfs_region(dfs_region))
4353 rd->dfs_region = dfs_region;
4354
b2e1b302 4355 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4356 rem_reg_rules) {
b2e1b302 4357 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4358 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4359 reg_rule_policy);
b2e1b302
LR		 4360 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4361 if (r)
4362 goto bad_reg;
4363
4364 rule_idx++;
4365
d0e18f83
LR		 4366 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4367 r = -EINVAL;
b2e1b302 4368 goto bad_reg;
d0e18f83 4369 }
b2e1b302
LR		 4370 }
4371
6913b49a
JB		 4372 mutex_lock(&cfg80211_mutex);
4373
b2e1b302 4374 r = set_regdom(rd);
6913b49a 4375 /* set_regdom took ownership */
1a919318 4376 rd = NULL;
6913b49a 4377 mutex_unlock(&cfg80211_mutex);
b2e1b302 4378
d2372b31 4379 bad_reg:
b2e1b302 4380 kfree(rd);
d0e18f83 4381 return r;
b2e1b302
LR		 4382}
4383
83f5e2cf
JB		 4384static int validate_scan_freqs(struct nlattr *freqs)
4385{
4386 struct nlattr *attr1, *attr2;
4387 int n_channels = 0, tmp1, tmp2;
4388
4389 nla_for_each_nested(attr1, freqs, tmp1) {
4390 n_channels++;
4391 /*
4392 * Some hardware has a limited channel list for
4393 * scanning, and it is pretty much nonsensical
4394 * to scan for a channel twice, so disallow that
4395 * and don't require drivers to check that the
4396 * channel list they get isn't longer than what
4397 * they can scan, as long as they can scan all
4398 * the channels they registered at once.
4399 */
4400 nla_for_each_nested(attr2, freqs, tmp2)
4401 if (attr1 != attr2 &&
4402 nla_get_u32(attr1) == nla_get_u32(attr2))
4403 return 0;
4404 }
4405
4406 return n_channels;
4407}
4408
2a519311
JB		 4409static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4410{
4c476991 4411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4412 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4413 struct cfg80211_scan_request *request;
2a519311
JB		 4414 struct nlattr *attr;
4415 struct wiphy *wiphy;
83f5e2cf 4416 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4417 size_t ie_len;
2a519311 4418
f4a11bb0
JB		 4419 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4420 return -EINVAL;
4421
79c97e97 4422 wiphy = &rdev->wiphy;
2a519311 4423
4c476991
JB		 4424 if (!rdev->ops->scan)
4425 return -EOPNOTSUPP;
2a519311 4426
4c476991
JB		 4427 if (rdev->scan_req)
4428 return -EBUSY;
2a519311
JB		 4429
4430 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4431 n_channels = validate_scan_freqs(
4432 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4433 if (!n_channels)
4434 return -EINVAL;
2a519311 4435 } else {
34850ab2 4436 enum ieee80211_band band;
83f5e2cf
JB		 4437 n_channels = 0;
4438
2a519311
JB		 4439 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4440 if (wiphy->bands[band])
4441 n_channels += wiphy->bands[band]->n_channels;
4442 }
4443
4444 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4445 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4446 n_ssids++;
4447
4c476991
JB		 4448 if (n_ssids > wiphy->max_scan_ssids)
4449 return -EINVAL;
2a519311 4450
70692ad2
JM		 4451 if (info->attrs[NL80211_ATTR_IE])
4452 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4453 else
4454 ie_len = 0;
4455
4c476991
JB		 4456 if (ie_len > wiphy->max_scan_ie_len)
4457 return -EINVAL;
18a83659 4458
2a519311 4459 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4460 + sizeof(*request->ssids) * n_ssids
4461 + sizeof(*request->channels) * n_channels
70692ad2 4462 + ie_len, GFP_KERNEL);
4c476991
JB		 4463 if (!request)
4464 return -ENOMEM;
2a519311 4465
2a519311 4466 if (n_ssids)
5ba63533 4467 request->ssids = (void *)&request->channels[n_channels];
2a519311 4468 request->n_ssids = n_ssids;
70692ad2
JM		 4469 if (ie_len) {
4470 if (request->ssids)
4471 request->ie = (void *)(request->ssids + n_ssids);
4472 else
4473 request->ie = (void *)(request->channels + n_channels);
4474 }
2a519311 4475
584991dc 4476 i = 0;
2a519311
JB		 4477 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4478 /* user specified, bail out if channel not found */
2a519311 4479 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4480 struct ieee80211_channel *chan;
4481
4482 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4483
4484 if (!chan) {
2a519311
JB		 4485 err = -EINVAL;
4486 goto out_free;
4487 }
584991dc
JB		 4488
4489 /* ignore disabled channels */
4490 if (chan->flags & IEEE80211_CHAN_DISABLED)
4491 continue;
4492
4493 request->channels[i] = chan;
2a519311
JB		 4494 i++;
4495 }
4496 } else {
34850ab2
JB		 4497 enum ieee80211_band band;
4498
2a519311 4499 /* all channels */
2a519311
JB		 4500 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4501 int j;
4502 if (!wiphy->bands[band])
4503 continue;
4504 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4505 struct ieee80211_channel *chan;
4506
4507 chan = &wiphy->bands[band]->channels[j];
4508
4509 if (chan->flags & IEEE80211_CHAN_DISABLED)
4510 continue;
4511
4512 request->channels[i] = chan;
2a519311
JB		 4513 i++;
4514 }
4515 }
4516 }
4517
584991dc
JB		 4518 if (!i) {
4519 err = -EINVAL;
4520 goto out_free;
4521 }
4522
4523 request->n_channels = i;
4524
2a519311
JB		 4525 i = 0;
4526 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4527 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4528 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4529 err = -EINVAL;
4530 goto out_free;
4531 }
57a27e1d 4532 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4533 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4534 i++;
4535 }
4536 }
4537
70692ad2
JM		 4538 if (info->attrs[NL80211_ATTR_IE]) {
4539 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4540 memcpy((void *)request->ie,
4541 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4542 request->ie_len);
4543 }
4544
34850ab2 4545 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4546 if (wiphy->bands[i])
4547 request->rates[i] =
4548 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4549
4550 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4551 nla_for_each_nested(attr,
4552 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4553 tmp) {
4554 enum ieee80211_band band = nla_type(attr);
4555
84404623 4556 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4557 err = -EINVAL;
4558 goto out_free;
4559 }
4560 err = ieee80211_get_ratemask(wiphy->bands[band],
4561 nla_data(attr),
4562 nla_len(attr),
4563 &request->rates[band]);
4564 if (err)
4565 goto out_free;
4566 }
4567 }
4568
46856bbf 4569 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4570 request->flags = nla_get_u32(
4571 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4572 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4573 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4574 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4575 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4576 err = -EOPNOTSUPP;
4577 goto out_free;
4578 }
4579 }
ed473771 4580
e9f935e3
RM		 4581 request->no_cck =
4582 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4583
fd014284 4584 request->wdev = wdev;
79c97e97 4585 request->wiphy = &rdev->wiphy;
15d6030b 4586 request->scan_start = jiffies;
2a519311 4587
79c97e97 4588 rdev->scan_req = request;
e35e4d28 4589 err = rdev_scan(rdev, request);
2a519311 4590
463d0183 4591 if (!err) {
fd014284
JB		 4592 nl80211_send_scan_start(rdev, wdev);
4593 if (wdev->netdev)
4594 dev_hold(wdev->netdev);
4c476991 4595 } else {
2a519311 4596 out_free:
79c97e97 4597 rdev->scan_req = NULL;
2a519311
JB		 4598 kfree(request);
4599 }
3b85875a 4600
2a519311
JB		 4601 return err;
4602}
4603
807f8a8c
LC		 4604static int nl80211_start_sched_scan(struct sk_buff *skb,
4605 struct genl_info *info)
4606{
4607 struct cfg80211_sched_scan_request *request;
4608 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4609 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4610 struct nlattr *attr;
4611 struct wiphy *wiphy;
a1f1c21c 4612 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4613 u32 interval;
807f8a8c
LC		 4614 enum ieee80211_band band;
4615 size_t ie_len;
a1f1c21c 4616 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4617
4618 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4619 !rdev->ops->sched_scan_start)
4620 return -EOPNOTSUPP;
4621
4622 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4623 return -EINVAL;
4624
bbe6ad6d
LC		 4625 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4626 return -EINVAL;
4627
4628 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4629 if (interval == 0)
4630 return -EINVAL;
4631
807f8a8c
LC		 4632 wiphy = &rdev->wiphy;
4633
4634 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4635 n_channels = validate_scan_freqs(
4636 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4637 if (!n_channels)
4638 return -EINVAL;
4639 } else {
4640 n_channels = 0;
4641
4642 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4643 if (wiphy->bands[band])
4644 n_channels += wiphy->bands[band]->n_channels;
4645 }
4646
4647 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4648 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4649 tmp)
4650 n_ssids++;
4651
93b6aa69 4652 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4653 return -EINVAL;
4654
a1f1c21c
LC		 4655 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4656 nla_for_each_nested(attr,
4657 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4658 tmp)
4659 n_match_sets++;
4660
4661 if (n_match_sets > wiphy->max_match_sets)
4662 return -EINVAL;
4663
807f8a8c
LC		 4664 if (info->attrs[NL80211_ATTR_IE])
4665 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4666 else
4667 ie_len = 0;
4668
5a865bad 4669 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4670 return -EINVAL;
4671
c10841ca
LC		 4672 mutex_lock(&rdev->sched_scan_mtx);
4673
4674 if (rdev->sched_scan_req) {
4675 err = -EINPROGRESS;
4676 goto out;
4677 }
4678
807f8a8c 4679 request = kzalloc(sizeof(*request)
a2cd43c5 4680 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4681 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4682 + sizeof(*request->channels) * n_channels
807f8a8c 4683 + ie_len, GFP_KERNEL);
c10841ca
LC		 4684 if (!request) {
4685 err = -ENOMEM;
4686 goto out;
4687 }
807f8a8c
LC		 4688
4689 if (n_ssids)
4690 request->ssids = (void *)&request->channels[n_channels];
4691 request->n_ssids = n_ssids;
4692 if (ie_len) {
4693 if (request->ssids)
4694 request->ie = (void *)(request->ssids + n_ssids);
4695 else
4696 request->ie = (void *)(request->channels + n_channels);
4697 }
4698
a1f1c21c
LC		 4699 if (n_match_sets) {
4700 if (request->ie)
4701 request->match_sets = (void *)(request->ie + ie_len);
4702 else if (request->ssids)
4703 request->match_sets =
4704 (void *)(request->ssids + n_ssids);
4705 else
4706 request->match_sets =
4707 (void *)(request->channels + n_channels);
4708 }
4709 request->n_match_sets = n_match_sets;
4710
807f8a8c
LC		 4711 i = 0;
4712 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4713 /* user specified, bail out if channel not found */
4714 nla_for_each_nested(attr,
4715 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4716 tmp) {
4717 struct ieee80211_channel *chan;
4718
4719 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4720
4721 if (!chan) {
4722 err = -EINVAL;
4723 goto out_free;
4724 }
4725
4726 /* ignore disabled channels */
4727 if (chan->flags & IEEE80211_CHAN_DISABLED)
4728 continue;
4729
4730 request->channels[i] = chan;
4731 i++;
4732 }
4733 } else {
4734 /* all channels */
4735 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4736 int j;
4737 if (!wiphy->bands[band])
4738 continue;
4739 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4740 struct ieee80211_channel *chan;
4741
4742 chan = &wiphy->bands[band]->channels[j];
4743
4744 if (chan->flags & IEEE80211_CHAN_DISABLED)
4745 continue;
4746
4747 request->channels[i] = chan;
4748 i++;
4749 }
4750 }
4751 }
4752
4753 if (!i) {
4754 err = -EINVAL;
4755 goto out_free;
4756 }
4757
4758 request->n_channels = i;
4759
4760 i = 0;
4761 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4762 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4763 tmp) {
57a27e1d 4764 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4765 err = -EINVAL;
4766 goto out_free;
4767 }
57a27e1d 4768 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4769 memcpy(request->ssids[i].ssid, nla_data(attr),
4770 nla_len(attr));
807f8a8c
LC		 4771 i++;
4772 }
4773 }
4774
a1f1c21c
LC		 4775 i = 0;
4776 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4777 nla_for_each_nested(attr,
4778 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4779 tmp) {
88e920b4 4780 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4781
4782 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4783 nla_data(attr), nla_len(attr),
4784 nl80211_match_policy);
4a4ab0d7 4785 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4786 if (ssid) {
4787 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4788 err = -EINVAL;
4789 goto out_free;
4790 }
4791 memcpy(request->match_sets[i].ssid.ssid,
4792 nla_data(ssid), nla_len(ssid));
4793 request->match_sets[i].ssid.ssid_len =
4794 nla_len(ssid);
4795 }
88e920b4
TP		 4796 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4797 if (rssi)
4798 request->rssi_thold = nla_get_u32(rssi);
4799 else
4800 request->rssi_thold =
4801 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4802 i++;
4803 }
4804 }
4805
807f8a8c
LC		 4806 if (info->attrs[NL80211_ATTR_IE]) {
4807 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4808 memcpy((void *)request->ie,
4809 nla_data(info->attrs[NL80211_ATTR_IE]),
4810 request->ie_len);
4811 }
4812
46856bbf 4813 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4814 request->flags = nla_get_u32(
4815 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4816 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4817 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4818 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4819 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4820 err = -EOPNOTSUPP;
4821 goto out_free;
4822 }
4823 }
ed473771 4824
807f8a8c
LC		 4825 request->dev = dev;
4826 request->wiphy = &rdev->wiphy;
bbe6ad6d 4827 request->interval = interval;
15d6030b 4828 request->scan_start = jiffies;
807f8a8c 4829
e35e4d28 4830 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 4831 if (!err) {
4832 rdev->sched_scan_req = request;
4833 nl80211_send_sched_scan(rdev, dev,
4834 NL80211_CMD_START_SCHED_SCAN);
4835 goto out;
4836 }
4837
4838out_free:
4839 kfree(request);
4840out:
c10841ca 4841 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4842 return err;
4843}
4844
4845static int nl80211_stop_sched_scan(struct sk_buff *skb,
4846 struct genl_info *info)
4847{
4848 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4849 int err;
807f8a8c
LC		 4850
4851 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4852 !rdev->ops->sched_scan_stop)
4853 return -EOPNOTSUPP;
4854
c10841ca
LC		 4855 mutex_lock(&rdev->sched_scan_mtx);
4856 err = __cfg80211_stop_sched_scan(rdev, false);
4857 mutex_unlock(&rdev->sched_scan_mtx);
4858
4859 return err;
807f8a8c
LC		 4860}
4861
9720bb3a
JB		 4862static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4863 u32 seq, int flags,
2a519311 4864 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4865 struct wireless_dev *wdev,
4866 struct cfg80211_internal_bss *intbss)
2a519311 4867{
48ab905d 4868 struct cfg80211_bss *res = &intbss->pub;
9caf0364 4869 const struct cfg80211_bss_ies *ies;
2a519311
JB		 4870 void *hdr;
4871 struct nlattr *bss;
48ab905d
JB		 4872
4873 ASSERT_WDEV_LOCK(wdev);
2a519311 4874
15e47304 4875 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 4876 NL80211_CMD_NEW_SCAN_RESULTS);
4877 if (!hdr)
4878 return -1;
4879
9720bb3a
JB		 4880 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4881
9360ffd1
DM		 4882 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4883 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4884 goto nla_put_failure;
2a519311
JB		 4885
4886 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4887 if (!bss)
4888 goto nla_put_failure;
9360ffd1 4889 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 4890 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 4891 goto nla_put_failure;
9caf0364
JB		 4892
4893 rcu_read_lock();
4894 ies = rcu_dereference(res->ies);
4895 if (ies && ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4896 ies->len, ies->data)) {
4897 rcu_read_unlock();
4898 goto nla_put_failure;
4899 }
4900 ies = rcu_dereference(res->beacon_ies);
4901 if (ies && ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
4902 ies->len, ies->data)) {
4903 rcu_read_unlock();
4904 goto nla_put_failure;
4905 }
4906 rcu_read_unlock();
4907
9360ffd1
DM		 4908 if (res->tsf &&
4909 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4910 goto nla_put_failure;
4911 if (res->beacon_interval &&
4912 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4913 goto nla_put_failure;
4914 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4915 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4916 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4917 jiffies_to_msecs(jiffies - intbss->ts)))
4918 goto nla_put_failure;
2a519311 4919
77965c97 4920 switch (rdev->wiphy.signal_type) {
2a519311 4921 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4922 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4923 goto nla_put_failure;
2a519311
JB		 4924 break;
4925 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4926 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4927 goto nla_put_failure;
2a519311
JB		 4928 break;
4929 default:
4930 break;
4931 }
4932
48ab905d 4933 switch (wdev->iftype) {
074ac8df 4934 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4935 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4936 if (intbss == wdev->current_bss &&
4937 nla_put_u32(msg, NL80211_BSS_STATUS,
4938 NL80211_BSS_STATUS_ASSOCIATED))
4939 goto nla_put_failure;
48ab905d
JB		 4940 break;
4941 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4942 if (intbss == wdev->current_bss &&
4943 nla_put_u32(msg, NL80211_BSS_STATUS,
4944 NL80211_BSS_STATUS_IBSS_JOINED))
4945 goto nla_put_failure;
48ab905d
JB		 4946 break;
4947 default:
4948 break;
4949 }
4950
2a519311
JB		 4951 nla_nest_end(msg, bss);
4952
4953 return genlmsg_end(msg, hdr);
4954
4955 nla_put_failure:
4956 genlmsg_cancel(msg, hdr);
4957 return -EMSGSIZE;
4958}
4959
4960static int nl80211_dump_scan(struct sk_buff *skb,
4961 struct netlink_callback *cb)
4962{
48ab905d
JB		 4963 struct cfg80211_registered_device *rdev;
4964 struct net_device *dev;
2a519311 4965 struct cfg80211_internal_bss *scan;
48ab905d 4966 struct wireless_dev *wdev;
2a519311
JB		 4967 int start = cb->args[1], idx = 0;
4968 int err;
4969
67748893
JB		 4970 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4971 if (err)
4972 return err;
2a519311 4973
48ab905d 4974 wdev = dev->ieee80211_ptr;
2a519311 4975
48ab905d
JB		 4976 wdev_lock(wdev);
4977 spin_lock_bh(&rdev->bss_lock);
4978 cfg80211_bss_expire(rdev);
4979
9720bb3a
JB		 4980 cb->seq = rdev->bss_generation;
4981
48ab905d 4982 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4983 if (++idx <= start)
4984 continue;
9720bb3a 4985 if (nl80211_send_bss(skb, cb,
2a519311 4986 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4987 rdev, wdev, scan) < 0) {
2a519311 4988 idx--;
67748893 4989 break;
2a519311
JB		 4990 }
4991 }
4992
48ab905d
JB		 4993 spin_unlock_bh(&rdev->bss_lock);
4994 wdev_unlock(wdev);
2a519311
JB		 4995
4996 cb->args[1] = idx;
67748893 4997 nl80211_finish_netdev_dump(rdev);
2a519311 4998
67748893 4999 return skb->len;
2a519311
JB		 5000}
5001
15e47304 5002static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5003 int flags, struct net_device *dev,
5004 struct survey_info *survey)
5005{
5006 void *hdr;
5007 struct nlattr *infoattr;
5008
15e47304 5009 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5010 NL80211_CMD_NEW_SURVEY_RESULTS);
5011 if (!hdr)
5012 return -ENOMEM;
5013
9360ffd1
DM		 5014 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5015 goto nla_put_failure;
61fa713c
HS		 5016
5017 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5018 if (!infoattr)
5019 goto nla_put_failure;
5020
9360ffd1
DM		 5021 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5022 survey->channel->center_freq))
5023 goto nla_put_failure;
5024
5025 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5026 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5027 goto nla_put_failure;
5028 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5029 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5030 goto nla_put_failure;
5031 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5032 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5033 survey->channel_time))
5034 goto nla_put_failure;
5035 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5036 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5037 survey->channel_time_busy))
5038 goto nla_put_failure;
5039 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5040 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5041 survey->channel_time_ext_busy))
5042 goto nla_put_failure;
5043 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5044 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5045 survey->channel_time_rx))
5046 goto nla_put_failure;
5047 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5048 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5049 survey->channel_time_tx))
5050 goto nla_put_failure;
61fa713c
HS		 5051
5052 nla_nest_end(msg, infoattr);
5053
5054 return genlmsg_end(msg, hdr);
5055
5056 nla_put_failure:
5057 genlmsg_cancel(msg, hdr);
5058 return -EMSGSIZE;
5059}
5060
5061static int nl80211_dump_survey(struct sk_buff *skb,
5062 struct netlink_callback *cb)
5063{
5064 struct survey_info survey;
5065 struct cfg80211_registered_device *dev;
5066 struct net_device *netdev;
61fa713c
HS		 5067 int survey_idx = cb->args[1];
5068 int res;
5069
67748893
JB		 5070 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5071 if (res)
5072 return res;
61fa713c
HS		 5073
5074 if (!dev->ops->dump_survey) {
5075 res = -EOPNOTSUPP;
5076 goto out_err;
5077 }
5078
5079 while (1) {
180cdc79
LR		 5080 struct ieee80211_channel *chan;
5081
e35e4d28 5082 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5083 if (res == -ENOENT)
5084 break;
5085 if (res)
5086 goto out_err;
5087
180cdc79
LR		 5088 /* Survey without a channel doesn't make sense */
5089 if (!survey.channel) {
5090 res = -EINVAL;
5091 goto out;
5092 }
5093
5094 chan = ieee80211_get_channel(&dev->wiphy,
5095 survey.channel->center_freq);
5096 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5097 survey_idx++;
5098 continue;
5099 }
5100
61fa713c 5101 if (nl80211_send_survey(skb,
15e47304 5102 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5103 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5104 netdev,
5105 &survey) < 0)
5106 goto out;
5107 survey_idx++;
5108 }
5109
5110 out:
5111 cb->args[1] = survey_idx;
5112 res = skb->len;
5113 out_err:
67748893 5114 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5115 return res;
5116}
5117
b23aa676
SO		 5118static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5119{
5120 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5121 NL80211_WPA_VERSION_2));
5122}
5123
636a5d36
JM		 5124static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5125{
4c476991
JB		 5126 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5127 struct net_device *dev = info->user_ptr[1];
19957bb3 5128 struct ieee80211_channel *chan;
e39e5b5e
JM		 5129 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5130 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5131 enum nl80211_auth_type auth_type;
fffd0934 5132 struct key_parse key;
d5cdfacb 5133 bool local_state_change;
636a5d36 5134
f4a11bb0
JB		 5135 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5136 return -EINVAL;
5137
5138 if (!info->attrs[NL80211_ATTR_MAC])
5139 return -EINVAL;
5140
1778092e
JM		 5141 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5142 return -EINVAL;
5143
19957bb3
JB		 5144 if (!info->attrs[NL80211_ATTR_SSID])
5145 return -EINVAL;
5146
5147 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5148 return -EINVAL;
5149
fffd0934
JB		 5150 err = nl80211_parse_key(info, &key);
5151 if (err)
5152 return err;
5153
5154 if (key.idx >= 0) {
e31b8213
JB		 5155 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5156 return -EINVAL;
fffd0934
JB		 5157 if (!key.p.key || !key.p.key_len)
5158 return -EINVAL;
5159 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5160 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5161 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5162 key.p.key_len != WLAN_KEY_LEN_WEP104))
5163 return -EINVAL;
5164 if (key.idx > 4)
5165 return -EINVAL;
5166 } else {
5167 key.p.key_len = 0;
5168 key.p.key = NULL;
5169 }
5170
afea0b7a
JB		 5171 if (key.idx >= 0) {
5172 int i;
5173 bool ok = false;
5174 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5175 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5176 ok = true;
5177 break;
5178 }
5179 }
4c476991
JB		 5180 if (!ok)
5181 return -EINVAL;
afea0b7a
JB		 5182 }
5183
4c476991
JB		 5184 if (!rdev->ops->auth)
5185 return -EOPNOTSUPP;
636a5d36 5186
074ac8df 5187 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5188 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5189 return -EOPNOTSUPP;
eec60b03 5190
19957bb3 5191 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5192 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5193 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5194 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5195 return -EINVAL;
636a5d36 5196
19957bb3
JB		 5197 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5198 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5199
5200 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5201 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5202 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5203 }
5204
19957bb3 5205 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5206 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5207 return -EINVAL;
636a5d36 5208
e39e5b5e
JM		 5209 if (auth_type == NL80211_AUTHTYPE_SAE &&
5210 !info->attrs[NL80211_ATTR_SAE_DATA])
5211 return -EINVAL;
5212
5213 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5214 if (auth_type != NL80211_AUTHTYPE_SAE)
5215 return -EINVAL;
5216 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5217 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5218 /* need to include at least Auth Transaction and Status Code */
5219 if (sae_data_len < 4)
5220 return -EINVAL;
5221 }
5222
d5cdfacb
JM		 5223 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5224
95de817b
JB		 5225 /*
5226 * Since we no longer track auth state, ignore
5227 * requests to only change local state.
5228 */
5229 if (local_state_change)
5230 return 0;
5231
4c476991
JB		 5232 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5233 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5234 key.p.key, key.p.key_len, key.idx,
5235 sae_data, sae_data_len);
636a5d36
JM		 5236}
5237
c0692b8f
JB		 5238static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5239 struct genl_info *info,
3dc27d25
JB		 5240 struct cfg80211_crypto_settings *settings,
5241 int cipher_limit)
b23aa676 5242{
c0b2bbd8
JB		 5243 memset(settings, 0, sizeof(*settings));
5244
b23aa676
SO		 5245 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5246
c0692b8f
JB		 5247 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5248 u16 proto;
5249 proto = nla_get_u16(
5250 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5251 settings->control_port_ethertype = cpu_to_be16(proto);
5252 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5253 proto != ETH_P_PAE)
5254 return -EINVAL;
5255 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5256 settings->control_port_no_encrypt = true;
5257 } else
5258 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5259
b23aa676
SO		 5260 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5261 void *data;
5262 int len, i;
5263
5264 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5265 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5266 settings->n_ciphers_pairwise = len / sizeof(u32);
5267
5268 if (len % sizeof(u32))
5269 return -EINVAL;
5270
3dc27d25 5271 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5272 return -EINVAL;
5273
5274 memcpy(settings->ciphers_pairwise, data, len);
5275
5276 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5277 if (!cfg80211_supported_cipher_suite(
5278 &rdev->wiphy,
b23aa676
SO		 5279 settings->ciphers_pairwise[i]))
5280 return -EINVAL;
5281 }
5282
5283 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5284 settings->cipher_group =
5285 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5286 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5287 settings->cipher_group))
b23aa676
SO		 5288 return -EINVAL;
5289 }
5290
5291 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5292 settings->wpa_versions =
5293 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5294 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5295 return -EINVAL;
5296 }
5297
5298 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5299 void *data;
6d30240e 5300 int len;
b23aa676
SO		 5301
5302 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5303 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5304 settings->n_akm_suites = len / sizeof(u32);
5305
5306 if (len % sizeof(u32))
5307 return -EINVAL;
5308
1b9ca027
JM		 5309 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5310 return -EINVAL;
5311
b23aa676 5312 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5313 }
5314
5315 return 0;
5316}
5317
636a5d36
JM		 5318static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5319{
4c476991
JB		 5320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5321 struct net_device *dev = info->user_ptr[1];
19957bb3 5322 struct cfg80211_crypto_settings crypto;
f444de05 5323 struct ieee80211_channel *chan;
3e5d7649 5324 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5325 int err, ssid_len, ie_len = 0;
5326 bool use_mfp = false;
7e7c8926
BG		 5327 u32 flags = 0;
5328 struct ieee80211_ht_cap *ht_capa = NULL;
5329 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5330
f4a11bb0
JB		 5331 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5332 return -EINVAL;
5333
5334 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5335 !info->attrs[NL80211_ATTR_SSID] ||
5336 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5337 return -EINVAL;
5338
4c476991
JB		 5339 if (!rdev->ops->assoc)
5340 return -EOPNOTSUPP;
636a5d36 5341
074ac8df 5342 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5343 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5344 return -EOPNOTSUPP;
eec60b03 5345
19957bb3 5346 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5347
19957bb3
JB		 5348 chan = ieee80211_get_channel(&rdev->wiphy,
5349 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5350 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5351 return -EINVAL;
636a5d36 5352
19957bb3
JB		 5353 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5354 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5355
5356 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5357 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5358 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5359 }
5360
dc6382ce 5361 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5362 enum nl80211_mfp mfp =
dc6382ce 5363 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5364 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5365 use_mfp = true;
4c476991
JB		 5366 else if (mfp != NL80211_MFP_NO)
5367 return -EINVAL;
dc6382ce
JM		 5368 }
5369
3e5d7649
JB		 5370 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5371 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5372
7e7c8926
BG		 5373 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5374 flags |= ASSOC_REQ_DISABLE_HT;
5375
5376 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5377 ht_capa_mask =
5378 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5379
5380 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5381 if (!ht_capa_mask)
5382 return -EINVAL;
5383 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5384 }
5385
c0692b8f 5386 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5387 if (!err)
3e5d7649
JB		 5388 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5389 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5390 &crypto, flags, ht_capa,
5391 ht_capa_mask);
636a5d36 5392
636a5d36
JM		 5393 return err;
5394}
5395
5396static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5397{
4c476991
JB		 5398 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5399 struct net_device *dev = info->user_ptr[1];
19957bb3 5400 const u8 *ie = NULL, *bssid;
4c476991 5401 int ie_len = 0;
19957bb3 5402 u16 reason_code;
d5cdfacb 5403 bool local_state_change;
636a5d36 5404
f4a11bb0
JB		 5405 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5406 return -EINVAL;
5407
5408 if (!info->attrs[NL80211_ATTR_MAC])
5409 return -EINVAL;
5410
5411 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5412 return -EINVAL;
5413
4c476991
JB		 5414 if (!rdev->ops->deauth)
5415 return -EOPNOTSUPP;
636a5d36 5416
074ac8df 5417 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5418 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5419 return -EOPNOTSUPP;
eec60b03 5420
19957bb3 5421 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5422
19957bb3
JB		 5423 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5424 if (reason_code == 0) {
f4a11bb0 5425 /* Reason Code 0 is reserved */
4c476991 5426 return -EINVAL;
255e737e 5427 }
636a5d36
JM		 5428
5429 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5430 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5431 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5432 }
5433
d5cdfacb
JM		 5434 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5435
4c476991
JB		 5436 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5437 local_state_change);
636a5d36
JM		 5438}
5439
5440static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5441{
4c476991
JB		 5442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5443 struct net_device *dev = info->user_ptr[1];
19957bb3 5444 const u8 *ie = NULL, *bssid;
4c476991 5445 int ie_len = 0;
19957bb3 5446 u16 reason_code;
d5cdfacb 5447 bool local_state_change;
636a5d36 5448
f4a11bb0
JB		 5449 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5450 return -EINVAL;
5451
5452 if (!info->attrs[NL80211_ATTR_MAC])
5453 return -EINVAL;
5454
5455 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5456 return -EINVAL;
5457
4c476991
JB		 5458 if (!rdev->ops->disassoc)
5459 return -EOPNOTSUPP;
636a5d36 5460
074ac8df 5461 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5462 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5463 return -EOPNOTSUPP;
eec60b03 5464
19957bb3 5465 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5466
19957bb3
JB		 5467 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5468 if (reason_code == 0) {
f4a11bb0 5469 /* Reason Code 0 is reserved */
4c476991 5470 return -EINVAL;
255e737e 5471 }
636a5d36
JM		 5472
5473 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5474 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5475 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5476 }
5477
d5cdfacb
JM		 5478 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5479
4c476991
JB		 5480 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5481 local_state_change);
636a5d36
JM		 5482}
5483
dd5b4cc7
FF		 5484static bool
5485nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5486 int mcast_rate[IEEE80211_NUM_BANDS],
5487 int rateval)
5488{
5489 struct wiphy *wiphy = &rdev->wiphy;
5490 bool found = false;
5491 int band, i;
5492
5493 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5494 struct ieee80211_supported_band *sband;
5495
5496 sband = wiphy->bands[band];
5497 if (!sband)
5498 continue;
5499
5500 for (i = 0; i < sband->n_bitrates; i++) {
5501 if (sband->bitrates[i].bitrate == rateval) {
5502 mcast_rate[band] = i + 1;
5503 found = true;
5504 break;
5505 }
5506 }
5507 }
5508
5509 return found;
5510}
5511
04a773ad
JB		 5512static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5513{
4c476991
JB		 5514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5515 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5516 struct cfg80211_ibss_params ibss;
5517 struct wiphy *wiphy;
fffd0934 5518 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5519 int err;
5520
8e30bc55
JB		 5521 memset(&ibss, 0, sizeof(ibss));
5522
04a773ad
JB		 5523 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5524 return -EINVAL;
5525
683b6d3b 5526 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 5527 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5528 return -EINVAL;
5529
8e30bc55
JB		 5530 ibss.beacon_interval = 100;
5531
5532 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5533 ibss.beacon_interval =
5534 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5535 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5536 return -EINVAL;
5537 }
5538
4c476991
JB		 5539 if (!rdev->ops->join_ibss)
5540 return -EOPNOTSUPP;
04a773ad 5541
4c476991
JB		 5542 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5543 return -EOPNOTSUPP;
04a773ad 5544
79c97e97 5545 wiphy = &rdev->wiphy;
04a773ad 5546
39193498 5547 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5548 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5549
5550 if (!is_valid_ether_addr(ibss.bssid))
5551 return -EINVAL;
5552 }
04a773ad
JB		 5553 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5554 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5555
5556 if (info->attrs[NL80211_ATTR_IE]) {
5557 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5558 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5559 }
5560
683b6d3b
JB		 5561 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5562 if (err)
5563 return err;
04a773ad 5564
683b6d3b 5565 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 5566 return -EINVAL;
5567
db9c64cf
JB		 5568 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5569 return -EINVAL;
5570 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5571 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 5572 return -EINVAL;
db9c64cf 5573
04a773ad 5574 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5575 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5576
fbd2c8dc
TP		 5577 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5578 u8 *rates =
5579 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5580 int n_rates =
5581 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5582 struct ieee80211_supported_band *sband =
683b6d3b 5583 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 5584
34850ab2
JB		 5585 err = ieee80211_get_ratemask(sband, rates, n_rates,
5586 &ibss.basic_rates);
5587 if (err)
5588 return err;
fbd2c8dc 5589 }
dd5b4cc7
FF		 5590
5591 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5592 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5593 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5594 return -EINVAL;
fbd2c8dc 5595
4c476991 5596 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 5597 bool no_ht = false;
5598
4c476991 5599 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 5600 info->attrs[NL80211_ATTR_KEYS],
5601 &no_ht);
4c476991
JB		 5602 if (IS_ERR(connkeys))
5603 return PTR_ERR(connkeys);
de7044ee 5604
3d9d1d66
JB		 5605 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5606 no_ht) {
de7044ee
SM		 5607 kfree(connkeys);
5608 return -EINVAL;
5609 }
4c476991 5610 }
04a773ad 5611
267335d6
AQ		 5612 ibss.control_port =
5613 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5614
4c476991 5615 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5616 if (err)
5617 kfree(connkeys);
04a773ad
JB		 5618 return err;
5619}
5620
5621static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5622{
4c476991
JB		 5623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5624 struct net_device *dev = info->user_ptr[1];
04a773ad 5625
4c476991
JB		 5626 if (!rdev->ops->leave_ibss)
5627 return -EOPNOTSUPP;
04a773ad 5628
4c476991
JB		 5629 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5630 return -EOPNOTSUPP;
04a773ad 5631
4c476991 5632 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5633}
5634
f4e583c8
AQ		 5635static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5636{
5637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5638 struct net_device *dev = info->user_ptr[1];
5639 int mcast_rate[IEEE80211_NUM_BANDS];
5640 u32 nla_rate;
5641 int err;
5642
5643 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5644 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5645 return -EOPNOTSUPP;
5646
5647 if (!rdev->ops->set_mcast_rate)
5648 return -EOPNOTSUPP;
5649
5650 memset(mcast_rate, 0, sizeof(mcast_rate));
5651
5652 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5653 return -EINVAL;
5654
5655 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5656 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5657 return -EINVAL;
5658
5659 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5660
5661 return err;
5662}
5663
5664
aff89a9b
JB		 5665#ifdef CONFIG_NL80211_TESTMODE
5666static struct genl_multicast_group nl80211_testmode_mcgrp = {
5667 .name = "testmode",
5668};
5669
5670static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5671{
4c476991 5672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5673 int err;
5674
5675 if (!info->attrs[NL80211_ATTR_TESTDATA])
5676 return -EINVAL;
5677
aff89a9b
JB		 5678 err = -EOPNOTSUPP;
5679 if (rdev->ops->testmode_cmd) {
5680 rdev->testmode_info = info;
e35e4d28 5681 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 5682 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5683 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5684 rdev->testmode_info = NULL;
5685 }
5686
aff89a9b
JB		 5687 return err;
5688}
5689
71063f0e
WYG		 5690static int nl80211_testmode_dump(struct sk_buff *skb,
5691 struct netlink_callback *cb)
5692{
00918d33 5693 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5694 int err;
5695 long phy_idx;
5696 void *data = NULL;
5697 int data_len = 0;
5698
5699 if (cb->args[0]) {
5700 /*
5701 * 0 is a valid index, but not valid for args[0],
5702 * so we need to offset by 1.
5703 */
5704 phy_idx = cb->args[0] - 1;
5705 } else {
5706 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5707 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5708 nl80211_policy);
5709 if (err)
5710 return err;
00918d33 5711
2bd7e35d
JB		 5712 mutex_lock(&cfg80211_mutex);
5713 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5714 nl80211_fam.attrbuf);
5715 if (IS_ERR(rdev)) {
5716 mutex_unlock(&cfg80211_mutex);
5717 return PTR_ERR(rdev);
00918d33 5718 }
2bd7e35d
JB		 5719 phy_idx = rdev->wiphy_idx;
5720 rdev = NULL;
5721 mutex_unlock(&cfg80211_mutex);
5722
71063f0e
WYG		 5723 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5724 cb->args[1] =
5725 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5726 }
5727
5728 if (cb->args[1]) {
5729 data = nla_data((void *)cb->args[1]);
5730 data_len = nla_len((void *)cb->args[1]);
5731 }
5732
5733 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5734 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5735 if (!rdev) {
71063f0e
WYG		 5736 mutex_unlock(&cfg80211_mutex);
5737 return -ENOENT;
5738 }
00918d33 5739 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5740 mutex_unlock(&cfg80211_mutex);
5741
00918d33 5742 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5743 err = -EOPNOTSUPP;
5744 goto out_err;
5745 }
5746
5747 while (1) {
15e47304 5748 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 5749 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5750 NL80211_CMD_TESTMODE);
5751 struct nlattr *tmdata;
5752
9360ffd1 5753 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5754 genlmsg_cancel(skb, hdr);
5755 break;
5756 }
5757
5758 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5759 if (!tmdata) {
5760 genlmsg_cancel(skb, hdr);
5761 break;
5762 }
e35e4d28 5763 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 5764 nla_nest_end(skb, tmdata);
5765
5766 if (err == -ENOBUFS || err == -ENOENT) {
5767 genlmsg_cancel(skb, hdr);
5768 break;
5769 } else if (err) {
5770 genlmsg_cancel(skb, hdr);
5771 goto out_err;
5772 }
5773
5774 genlmsg_end(skb, hdr);
5775 }
5776
5777 err = skb->len;
5778 /* see above */
5779 cb->args[0] = phy_idx + 1;
5780 out_err:
00918d33 5781 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5782 return err;
5783}
5784
aff89a9b
JB		 5785static struct sk_buff *
5786__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 5787 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 5788{
5789 struct sk_buff *skb;
5790 void *hdr;
5791 struct nlattr *data;
5792
5793 skb = nlmsg_new(approxlen + 100, gfp);
5794 if (!skb)
5795 return NULL;
5796
15e47304 5797 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 5798 if (!hdr) {
5799 kfree_skb(skb);
5800 return NULL;
5801 }
5802
9360ffd1
DM		 5803 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5804 goto nla_put_failure;
aff89a9b
JB		 5805 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5806
5807 ((void **)skb->cb)[0] = rdev;
5808 ((void **)skb->cb)[1] = hdr;
5809 ((void **)skb->cb)[2] = data;
5810
5811 return skb;
5812
5813 nla_put_failure:
5814 kfree_skb(skb);
5815 return NULL;
5816}
5817
5818struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5819 int approxlen)
5820{
5821 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5822
5823 if (WARN_ON(!rdev->testmode_info))
5824 return NULL;
5825
5826 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 5827 rdev->testmode_info->snd_portid,
aff89a9b
JB		 5828 rdev->testmode_info->snd_seq,
5829 GFP_KERNEL);
5830}
5831EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5832
5833int cfg80211_testmode_reply(struct sk_buff *skb)
5834{
5835 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5836 void *hdr = ((void **)skb->cb)[1];
5837 struct nlattr *data = ((void **)skb->cb)[2];
5838
5839 if (WARN_ON(!rdev->testmode_info)) {
5840 kfree_skb(skb);
5841 return -EINVAL;
5842 }
5843
5844 nla_nest_end(skb, data);
5845 genlmsg_end(skb, hdr);
5846 return genlmsg_reply(skb, rdev->testmode_info);
5847}
5848EXPORT_SYMBOL(cfg80211_testmode_reply);
5849
5850struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5851 int approxlen, gfp_t gfp)
5852{
5853 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5854
5855 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5856}
5857EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5858
5859void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5860{
5861 void *hdr = ((void **)skb->cb)[1];
5862 struct nlattr *data = ((void **)skb->cb)[2];
5863
5864 nla_nest_end(skb, data);
5865 genlmsg_end(skb, hdr);
5866 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5867}
5868EXPORT_SYMBOL(cfg80211_testmode_event);
5869#endif
5870
b23aa676
SO		 5871static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5872{
4c476991
JB		 5873 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5874 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5875 struct cfg80211_connect_params connect;
5876 struct wiphy *wiphy;
fffd0934 5877 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5878 int err;
5879
5880 memset(&connect, 0, sizeof(connect));
5881
5882 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5883 return -EINVAL;
5884
5885 if (!info->attrs[NL80211_ATTR_SSID] ||
5886 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5887 return -EINVAL;
5888
5889 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5890 connect.auth_type =
5891 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 5892 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5893 NL80211_CMD_CONNECT))
b23aa676
SO		 5894 return -EINVAL;
5895 } else
5896 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5897
5898 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5899
c0692b8f 5900 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5901 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5902 if (err)
5903 return err;
b23aa676 5904
074ac8df 5905 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5906 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5907 return -EOPNOTSUPP;
b23aa676 5908
79c97e97 5909 wiphy = &rdev->wiphy;
b23aa676 5910
4486ea98
BS		 5911 connect.bg_scan_period = -1;
5912 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5913 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5914 connect.bg_scan_period =
5915 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5916 }
5917
b23aa676
SO		 5918 if (info->attrs[NL80211_ATTR_MAC])
5919 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5920 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5921 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5922
5923 if (info->attrs[NL80211_ATTR_IE]) {
5924 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5925 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5926 }
5927
5928 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5929 connect.channel =
5930 ieee80211_get_channel(wiphy,
5931 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5932 if (!connect.channel ||
4c476991
JB		 5933 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5934 return -EINVAL;
b23aa676
SO		 5935 }
5936
fffd0934
JB		 5937 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5938 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 5939 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 5940 if (IS_ERR(connkeys))
5941 return PTR_ERR(connkeys);
fffd0934
JB		 5942 }
5943
7e7c8926
BG		 5944 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5945 connect.flags |= ASSOC_REQ_DISABLE_HT;
5946
5947 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5948 memcpy(&connect.ht_capa_mask,
5949 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5950 sizeof(connect.ht_capa_mask));
5951
5952 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 5953 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5954 kfree(connkeys);
7e7c8926 5955 return -EINVAL;
b4e4f47e 5956 }
7e7c8926
BG		 5957 memcpy(&connect.ht_capa,
5958 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5959 sizeof(connect.ht_capa));
5960 }
5961
fffd0934 5962 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5963 if (err)
5964 kfree(connkeys);
b23aa676
SO		 5965 return err;
5966}
5967
5968static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5969{
4c476991
JB		 5970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5971 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5972 u16 reason;
5973
5974 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5975 reason = WLAN_REASON_DEAUTH_LEAVING;
5976 else
5977 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5978
5979 if (reason == 0)
5980 return -EINVAL;
5981
074ac8df 5982 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5983 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5984 return -EOPNOTSUPP;
b23aa676 5985
4c476991 5986 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5987}
5988
463d0183
JB		 5989static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5990{
4c476991 5991 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5992 struct net *net;
5993 int err;
5994 u32 pid;
5995
5996 if (!info->attrs[NL80211_ATTR_PID])
5997 return -EINVAL;
5998
5999 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6000
463d0183 6001 net = get_net_ns_by_pid(pid);
4c476991
JB		 6002 if (IS_ERR(net))
6003 return PTR_ERR(net);
463d0183
JB		 6004
6005 err = 0;
6006
6007 /* check if anything to do */
4c476991
JB		 6008 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6009 err = cfg80211_switch_netns(rdev, net);
463d0183 6010
463d0183 6011 put_net(net);
463d0183
JB		 6012 return err;
6013}
6014
67fbb16b
SO		 6015static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6016{
4c476991 6017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6018 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6019 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6020 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6021 struct cfg80211_pmksa pmksa;
6022
6023 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6024
6025 if (!info->attrs[NL80211_ATTR_MAC])
6026 return -EINVAL;
6027
6028 if (!info->attrs[NL80211_ATTR_PMKID])
6029 return -EINVAL;
6030
67fbb16b
SO		 6031 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6032 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6033
074ac8df 6034 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6035 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6036 return -EOPNOTSUPP;
67fbb16b
SO		 6037
6038 switch (info->genlhdr->cmd) {
6039 case NL80211_CMD_SET_PMKSA:
6040 rdev_ops = rdev->ops->set_pmksa;
6041 break;
6042 case NL80211_CMD_DEL_PMKSA:
6043 rdev_ops = rdev->ops->del_pmksa;
6044 break;
6045 default:
6046 WARN_ON(1);
6047 break;
6048 }
6049
4c476991
JB		 6050 if (!rdev_ops)
6051 return -EOPNOTSUPP;
67fbb16b 6052
4c476991 6053 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6054}
6055
6056static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6057{
4c476991
JB		 6058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6059 struct net_device *dev = info->user_ptr[1];
67fbb16b 6060
074ac8df 6061 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6062 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6063 return -EOPNOTSUPP;
67fbb16b 6064
4c476991
JB		 6065 if (!rdev->ops->flush_pmksa)
6066 return -EOPNOTSUPP;
67fbb16b 6067
e35e4d28 6068 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6069}
6070
109086ce
AN		 6071static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6072{
6073 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6074 struct net_device *dev = info->user_ptr[1];
6075 u8 action_code, dialog_token;
6076 u16 status_code;
6077 u8 *peer;
6078
6079 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6080 !rdev->ops->tdls_mgmt)
6081 return -EOPNOTSUPP;
6082
6083 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6084 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6085 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6086 !info->attrs[NL80211_ATTR_IE] ||
6087 !info->attrs[NL80211_ATTR_MAC])
6088 return -EINVAL;
6089
6090 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6091 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6092 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6093 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6094
e35e4d28
HG		 6095 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6096 dialog_token, status_code,
6097 nla_data(info->attrs[NL80211_ATTR_IE]),
6098 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6099}
6100
6101static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6102{
6103 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6104 struct net_device *dev = info->user_ptr[1];
6105 enum nl80211_tdls_operation operation;
6106 u8 *peer;
6107
6108 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6109 !rdev->ops->tdls_oper)
6110 return -EOPNOTSUPP;
6111
6112 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6113 !info->attrs[NL80211_ATTR_MAC])
6114 return -EINVAL;
6115
6116 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6117 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6118
e35e4d28 6119 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6120}
6121
9588bbd5
JM		 6122static int nl80211_remain_on_channel(struct sk_buff *skb,
6123 struct genl_info *info)
6124{
4c476991 6125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6126 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6127 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6128 struct sk_buff *msg;
6129 void *hdr;
6130 u64 cookie;
683b6d3b 6131 u32 duration;
9588bbd5
JM		 6132 int err;
6133
6134 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6135 !info->attrs[NL80211_ATTR_DURATION])
6136 return -EINVAL;
6137
6138 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6139
ebf348fc
JB		 6140 if (!rdev->ops->remain_on_channel ||
6141 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6142 return -EOPNOTSUPP;
6143
9588bbd5 6144 /*
ebf348fc
JB		 6145 * We should be on that channel for at least a minimum amount of
6146 * time (10ms) but no longer than the driver supports.
9588bbd5 6147 */
ebf348fc 6148 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6149 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6150 return -EINVAL;
6151
683b6d3b
JB		 6152 err = nl80211_parse_chandef(rdev, info, &chandef);
6153 if (err)
6154 return err;
9588bbd5
JM		 6155
6156 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6157 if (!msg)
6158 return -ENOMEM;
9588bbd5 6159
15e47304 6160 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6161 NL80211_CMD_REMAIN_ON_CHANNEL);
6162
6163 if (IS_ERR(hdr)) {
6164 err = PTR_ERR(hdr);
6165 goto free_msg;
6166 }
6167
683b6d3b
JB		 6168 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6169 duration, &cookie);
9588bbd5
JM		 6170
6171 if (err)
6172 goto free_msg;
6173
9360ffd1
DM		 6174 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6175 goto nla_put_failure;
9588bbd5
JM		 6176
6177 genlmsg_end(msg, hdr);
4c476991
JB		 6178
6179 return genlmsg_reply(msg, info);
9588bbd5
JM		 6180
6181 nla_put_failure:
6182 err = -ENOBUFS;
6183 free_msg:
6184 nlmsg_free(msg);
9588bbd5
JM		 6185 return err;
6186}
6187
6188static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6189 struct genl_info *info)
6190{
4c476991 6191 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6192 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6193 u64 cookie;
9588bbd5
JM		 6194
6195 if (!info->attrs[NL80211_ATTR_COOKIE])
6196 return -EINVAL;
6197
4c476991
JB		 6198 if (!rdev->ops->cancel_remain_on_channel)
6199 return -EOPNOTSUPP;
9588bbd5 6200
9588bbd5
JM		 6201 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6202
e35e4d28 6203 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6204}
6205
13ae75b1
JM		 6206static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6207 u8 *rates, u8 rates_len)
6208{
6209 u8 i;
6210 u32 mask = 0;
6211
6212 for (i = 0; i < rates_len; i++) {
6213 int rate = (rates[i] & 0x7f) * 5;
6214 int ridx;
6215 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6216 struct ieee80211_rate *srate =
6217 &sband->bitrates[ridx];
6218 if (rate == srate->bitrate) {
6219 mask |= 1 << ridx;
6220 break;
6221 }
6222 }
6223 if (ridx == sband->n_bitrates)
6224 return 0; /* rate not found */
6225 }
6226
6227 return mask;
6228}
6229
24db78c0
SW		 6230static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6231 u8 *rates, u8 rates_len,
6232 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6233{
6234 u8 i;
6235
6236 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6237
6238 for (i = 0; i < rates_len; i++) {
6239 int ridx, rbit;
6240
6241 ridx = rates[i] / 8;
6242 rbit = BIT(rates[i] % 8);
6243
6244 /* check validity */
910570b5 6245 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6246 return false;
6247
6248 /* check availability */
6249 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6250 mcs[ridx] |= rbit;
6251 else
6252 return false;
6253 }
6254
6255 return true;
6256}
6257
b54452b0 6258static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6259 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6260 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6261 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6262 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6263};
6264
6265static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6266 struct genl_info *info)
6267{
6268 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6270 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6271 int rem, i;
6272 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6273 struct nlattr *tx_rates;
6274 struct ieee80211_supported_band *sband;
6275
6276 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6277 return -EINVAL;
6278
4c476991
JB		 6279 if (!rdev->ops->set_bitrate_mask)
6280 return -EOPNOTSUPP;
13ae75b1
JM		 6281
6282 memset(&mask, 0, sizeof(mask));
6283 /* Default to all rates enabled */
6284 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6285 sband = rdev->wiphy.bands[i];
6286 mask.control[i].legacy =
6287 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6288 if (sband)
6289 memcpy(mask.control[i].mcs,
6290 sband->ht_cap.mcs.rx_mask,
6291 sizeof(mask.control[i].mcs));
6292 else
6293 memset(mask.control[i].mcs, 0,
6294 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6295 }
6296
6297 /*
6298 * The nested attribute uses enum nl80211_band as the index. This maps
6299 * directly to the enum ieee80211_band values used in cfg80211.
6300 */
24db78c0 6301 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6302 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6303 {
6304 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6305 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6306 return -EINVAL;
13ae75b1 6307 sband = rdev->wiphy.bands[band];
4c476991
JB		 6308 if (sband == NULL)
6309 return -EINVAL;
13ae75b1
JM		 6310 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6311 nla_len(tx_rates), nl80211_txattr_policy);
6312 if (tb[NL80211_TXRATE_LEGACY]) {
6313 mask.control[band].legacy = rateset_to_mask(
6314 sband,
6315 nla_data(tb[NL80211_TXRATE_LEGACY]),
6316 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6317 if ((mask.control[band].legacy == 0) &&
6318 nla_len(tb[NL80211_TXRATE_LEGACY]))
6319 return -EINVAL;
24db78c0
SW		 6320 }
6321 if (tb[NL80211_TXRATE_MCS]) {
6322 if (!ht_rateset_to_mask(
6323 sband,
6324 nla_data(tb[NL80211_TXRATE_MCS]),
6325 nla_len(tb[NL80211_TXRATE_MCS]),
6326 mask.control[band].mcs))
6327 return -EINVAL;
6328 }
6329
6330 if (mask.control[band].legacy == 0) {
6331 /* don't allow empty legacy rates if HT
6332 * is not even supported. */
6333 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6334 return -EINVAL;
6335
6336 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6337 if (mask.control[band].mcs[i])
6338 break;
6339
6340 /* legacy and mcs rates may not be both empty */
6341 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6342 return -EINVAL;
13ae75b1
JM		 6343 }
6344 }
6345
e35e4d28 6346 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 6347}
6348
2e161f78 6349static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6350{
4c476991 6351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6352 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6353 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6354
6355 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6356 return -EINVAL;
6357
2e161f78
JB		 6358 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6359 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6360
71bbc994
JB		 6361 switch (wdev->iftype) {
6362 case NL80211_IFTYPE_STATION:
6363 case NL80211_IFTYPE_ADHOC:
6364 case NL80211_IFTYPE_P2P_CLIENT:
6365 case NL80211_IFTYPE_AP:
6366 case NL80211_IFTYPE_AP_VLAN:
6367 case NL80211_IFTYPE_MESH_POINT:
6368 case NL80211_IFTYPE_P2P_GO:
98104fde 6369 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6370 break;
6371 default:
4c476991 6372 return -EOPNOTSUPP;
71bbc994 6373 }
026331c4
JM		 6374
6375 /* not much point in registering if we can't reply */
4c476991
JB		 6376 if (!rdev->ops->mgmt_tx)
6377 return -EOPNOTSUPP;
026331c4 6378
15e47304 6379 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6380 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6381 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6382}
6383
2e161f78 6384static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6385{
4c476991 6386 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6387 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6388 struct cfg80211_chan_def chandef;
026331c4 6389 int err;
d64d373f 6390 void *hdr = NULL;
026331c4 6391 u64 cookie;
e247bd90 6392 struct sk_buff *msg = NULL;
f7ca38df 6393 unsigned int wait = 0;
e247bd90
JB		 6394 bool offchan, no_cck, dont_wait_for_ack;
6395
6396 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 6397
683b6d3b 6398 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 6399 return -EINVAL;
6400
4c476991
JB		 6401 if (!rdev->ops->mgmt_tx)
6402 return -EOPNOTSUPP;
026331c4 6403
71bbc994
JB		 6404 switch (wdev->iftype) {
6405 case NL80211_IFTYPE_STATION:
6406 case NL80211_IFTYPE_ADHOC:
6407 case NL80211_IFTYPE_P2P_CLIENT:
6408 case NL80211_IFTYPE_AP:
6409 case NL80211_IFTYPE_AP_VLAN:
6410 case NL80211_IFTYPE_MESH_POINT:
6411 case NL80211_IFTYPE_P2P_GO:
98104fde 6412 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6413 break;
6414 default:
4c476991 6415 return -EOPNOTSUPP;
71bbc994 6416 }
026331c4 6417
f7ca38df 6418 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6419 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6420 return -EINVAL;
6421 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6422
6423 /*
6424 * We should wait on the channel for at least a minimum amount
6425 * of time (10ms) but no longer than the driver supports.
6426 */
6427 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6428 wait > rdev->wiphy.max_remain_on_channel_duration)
6429 return -EINVAL;
6430
f7ca38df
JB		 6431 }
6432
f7ca38df
JB		 6433 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6434
7c4ef712
JB		 6435 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6436 return -EINVAL;
6437
e9f935e3
RM		 6438 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6439
683b6d3b
JB		 6440 err = nl80211_parse_chandef(rdev, info, &chandef);
6441 if (err)
6442 return err;
026331c4 6443
e247bd90
JB		 6444 if (!dont_wait_for_ack) {
6445 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6446 if (!msg)
6447 return -ENOMEM;
026331c4 6448
15e47304 6449 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6450 NL80211_CMD_FRAME);
026331c4 6451
e247bd90
JB		 6452 if (IS_ERR(hdr)) {
6453 err = PTR_ERR(hdr);
6454 goto free_msg;
6455 }
026331c4 6456 }
e247bd90 6457
683b6d3b 6458 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 6459 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6460 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6461 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6462 if (err)
6463 goto free_msg;
6464
e247bd90 6465 if (msg) {
9360ffd1
DM		 6466 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6467 goto nla_put_failure;
026331c4 6468
e247bd90
JB		 6469 genlmsg_end(msg, hdr);
6470 return genlmsg_reply(msg, info);
6471 }
6472
6473 return 0;
026331c4
JM		 6474
6475 nla_put_failure:
6476 err = -ENOBUFS;
6477 free_msg:
6478 nlmsg_free(msg);
026331c4
JM		 6479 return err;
6480}
6481
f7ca38df
JB		 6482static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6483{
6484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6485 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6486 u64 cookie;
6487
6488 if (!info->attrs[NL80211_ATTR_COOKIE])
6489 return -EINVAL;
6490
6491 if (!rdev->ops->mgmt_tx_cancel_wait)
6492 return -EOPNOTSUPP;
6493
71bbc994
JB		 6494 switch (wdev->iftype) {
6495 case NL80211_IFTYPE_STATION:
6496 case NL80211_IFTYPE_ADHOC:
6497 case NL80211_IFTYPE_P2P_CLIENT:
6498 case NL80211_IFTYPE_AP:
6499 case NL80211_IFTYPE_AP_VLAN:
6500 case NL80211_IFTYPE_P2P_GO:
98104fde 6501 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6502 break;
6503 default:
f7ca38df 6504 return -EOPNOTSUPP;
71bbc994 6505 }
f7ca38df
JB		 6506
6507 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6508
e35e4d28 6509 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 6510}
6511
ffb9eb3d
KV		 6512static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6513{
4c476991 6514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6515 struct wireless_dev *wdev;
4c476991 6516 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6517 u8 ps_state;
6518 bool state;
6519 int err;
6520
4c476991
JB		 6521 if (!info->attrs[NL80211_ATTR_PS_STATE])
6522 return -EINVAL;
ffb9eb3d
KV		 6523
6524 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6525
4c476991
JB		 6526 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6527 return -EINVAL;
ffb9eb3d
KV		 6528
6529 wdev = dev->ieee80211_ptr;
6530
4c476991
JB		 6531 if (!rdev->ops->set_power_mgmt)
6532 return -EOPNOTSUPP;
ffb9eb3d
KV		 6533
6534 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6535
6536 if (state == wdev->ps)
4c476991 6537 return 0;
ffb9eb3d 6538
e35e4d28 6539 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 6540 if (!err)
6541 wdev->ps = state;
ffb9eb3d
KV		 6542 return err;
6543}
6544
6545static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6546{
4c476991 6547 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6548 enum nl80211_ps_state ps_state;
6549 struct wireless_dev *wdev;
4c476991 6550 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6551 struct sk_buff *msg;
6552 void *hdr;
6553 int err;
6554
ffb9eb3d
KV		 6555 wdev = dev->ieee80211_ptr;
6556
4c476991
JB		 6557 if (!rdev->ops->set_power_mgmt)
6558 return -EOPNOTSUPP;
ffb9eb3d
KV		 6559
6560 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6561 if (!msg)
6562 return -ENOMEM;
ffb9eb3d 6563
15e47304 6564 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6565 NL80211_CMD_GET_POWER_SAVE);
6566 if (!hdr) {
4c476991 6567 err = -ENOBUFS;
ffb9eb3d
KV		 6568 goto free_msg;
6569 }
6570
6571 if (wdev->ps)
6572 ps_state = NL80211_PS_ENABLED;
6573 else
6574 ps_state = NL80211_PS_DISABLED;
6575
9360ffd1
DM		 6576 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6577 goto nla_put_failure;
ffb9eb3d
KV		 6578
6579 genlmsg_end(msg, hdr);
4c476991 6580 return genlmsg_reply(msg, info);
ffb9eb3d 6581
4c476991 6582 nla_put_failure:
ffb9eb3d 6583 err = -ENOBUFS;
4c476991 6584 free_msg:
ffb9eb3d 6585 nlmsg_free(msg);
ffb9eb3d
KV		 6586 return err;
6587}
6588
d6dc1a38
JO		 6589static struct nla_policy
6590nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6591 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6592 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6593 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6594 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6595 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6596 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6597};
6598
84f10708 6599static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 6600 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 6601{
6602 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6603 struct wireless_dev *wdev;
6604 struct net_device *dev = info->user_ptr[1];
6605
d9d8b019 6606 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 6607 return -EINVAL;
6608
6609 wdev = dev->ieee80211_ptr;
6610
6611 if (!rdev->ops->set_cqm_txe_config)
6612 return -EOPNOTSUPP;
6613
6614 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6615 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6616 return -EOPNOTSUPP;
6617
e35e4d28 6618 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 6619}
6620
d6dc1a38
JO		 6621static int nl80211_set_cqm_rssi(struct genl_info *info,
6622 s32 threshold, u32 hysteresis)
6623{
4c476991 6624 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6625 struct wireless_dev *wdev;
4c476991 6626 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6627
6628 if (threshold > 0)
6629 return -EINVAL;
6630
d6dc1a38
JO		 6631 wdev = dev->ieee80211_ptr;
6632
4c476991
JB		 6633 if (!rdev->ops->set_cqm_rssi_config)
6634 return -EOPNOTSUPP;
d6dc1a38 6635
074ac8df 6636 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6637 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6638 return -EOPNOTSUPP;
d6dc1a38 6639
e35e4d28 6640 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 6641}
6642
6643static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6644{
6645 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6646 struct nlattr *cqm;
6647 int err;
6648
6649 cqm = info->attrs[NL80211_ATTR_CQM];
6650 if (!cqm) {
6651 err = -EINVAL;
6652 goto out;
6653 }
6654
6655 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6656 nl80211_attr_cqm_policy);
6657 if (err)
6658 goto out;
6659
6660 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6661 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6662 s32 threshold;
6663 u32 hysteresis;
6664 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6665 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6666 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 6667 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6668 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6669 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6670 u32 rate, pkts, intvl;
6671 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6672 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6673 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6674 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 6675 } else
6676 err = -EINVAL;
6677
6678out:
6679 return err;
6680}
6681
29cbe68c
JB		 6682static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6683{
6684 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6685 struct net_device *dev = info->user_ptr[1];
6686 struct mesh_config cfg;
c80d545d 6687 struct mesh_setup setup;
29cbe68c
JB		 6688 int err;
6689
6690 /* start with default */
6691 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6692 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6693
24bdd9f4 6694 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6695 /* and parse parameters if given */
24bdd9f4 6696 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6697 if (err)
6698 return err;
6699 }
6700
6701 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6702 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6703 return -EINVAL;
6704
c80d545d
JC		 6705 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6706 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6707
4bb62344
CYY		 6708 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6709 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6710 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6711 return -EINVAL;
6712
9bdbf04d
MP		 6713 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6714 setup.beacon_interval =
6715 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6716 if (setup.beacon_interval < 10 ||
6717 setup.beacon_interval > 10000)
6718 return -EINVAL;
6719 }
6720
6721 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
6722 setup.dtim_period =
6723 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
6724 if (setup.dtim_period < 1 || setup.dtim_period > 100)
6725 return -EINVAL;
6726 }
6727
c80d545d
JC		 6728 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6729 /* parse additional setup parameters if given */
6730 err = nl80211_parse_mesh_setup(info, &setup);
6731 if (err)
6732 return err;
6733 }
6734
cc1d2806 6735 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 6736 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
6737 if (err)
6738 return err;
cc1d2806
JB		 6739 } else {
6740 /* cfg80211_join_mesh() will sort it out */
683b6d3b 6741 setup.chandef.chan = NULL;
cc1d2806
JB		 6742 }
6743
c80d545d 6744 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6745}
6746
6747static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6748{
6749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6750 struct net_device *dev = info->user_ptr[1];
6751
6752 return cfg80211_leave_mesh(rdev, dev);
6753}
6754
dfb89c56 6755#ifdef CONFIG_PM
ff1b6e69
JB		 6756static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6757{
6758 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6759 struct sk_buff *msg;
6760 void *hdr;
6761
6762 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6763 return -EOPNOTSUPP;
6764
6765 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6766 if (!msg)
6767 return -ENOMEM;
6768
15e47304 6769 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 6770 NL80211_CMD_GET_WOWLAN);
6771 if (!hdr)
6772 goto nla_put_failure;
6773
6774 if (rdev->wowlan) {
6775 struct nlattr *nl_wowlan;
6776
6777 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6778 if (!nl_wowlan)
6779 goto nla_put_failure;
6780
9360ffd1
DM		 6781 if ((rdev->wowlan->any &&
6782 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6783 (rdev->wowlan->disconnect &&
6784 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6785 (rdev->wowlan->magic_pkt &&
6786 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6787 (rdev->wowlan->gtk_rekey_failure &&
6788 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6789 (rdev->wowlan->eap_identity_req &&
6790 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6791 (rdev->wowlan->four_way_handshake &&
6792 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6793 (rdev->wowlan->rfkill_release &&
6794 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6795 goto nla_put_failure;
ff1b6e69
JB		 6796 if (rdev->wowlan->n_patterns) {
6797 struct nlattr *nl_pats, *nl_pat;
6798 int i, pat_len;
6799
6800 nl_pats = nla_nest_start(msg,
6801 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6802 if (!nl_pats)
6803 goto nla_put_failure;
6804
6805 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6806 nl_pat = nla_nest_start(msg, i + 1);
6807 if (!nl_pat)
6808 goto nla_put_failure;
6809 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6810 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6811 DIV_ROUND_UP(pat_len, 8),
6812 rdev->wowlan->patterns[i].mask) ||
6813 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6814 pat_len,
6815 rdev->wowlan->patterns[i].pattern))
6816 goto nla_put_failure;
ff1b6e69
JB		 6817 nla_nest_end(msg, nl_pat);
6818 }
6819 nla_nest_end(msg, nl_pats);
6820 }
6821
6822 nla_nest_end(msg, nl_wowlan);
6823 }
6824
6825 genlmsg_end(msg, hdr);
6826 return genlmsg_reply(msg, info);
6827
6828nla_put_failure:
6829 nlmsg_free(msg);
6830 return -ENOBUFS;
6831}
6832
6833static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6834{
6835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6836 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 6837 struct cfg80211_wowlan new_triggers = {};
ae33bd81 6838 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 6839 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6840 int err, i;
6d52563f 6841 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6842
6843 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6844 return -EOPNOTSUPP;
6845
ae33bd81
JB		 6846 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6847 cfg80211_rdev_free_wowlan(rdev);
6848 rdev->wowlan = NULL;
6849 goto set_wakeup;
6850 }
ff1b6e69
JB		 6851
6852 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6853 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6854 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6855 nl80211_wowlan_policy);
6856 if (err)
6857 return err;
6858
6859 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6860 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6861 return -EINVAL;
6862 new_triggers.any = true;
6863 }
6864
6865 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6866 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6867 return -EINVAL;
6868 new_triggers.disconnect = true;
6869 }
6870
6871 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6872 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6873 return -EINVAL;
6874 new_triggers.magic_pkt = true;
6875 }
6876
77dbbb13
JB		 6877 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6878 return -EINVAL;
6879
6880 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6881 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6882 return -EINVAL;
6883 new_triggers.gtk_rekey_failure = true;
6884 }
6885
6886 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6887 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6888 return -EINVAL;
6889 new_triggers.eap_identity_req = true;
6890 }
6891
6892 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6893 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6894 return -EINVAL;
6895 new_triggers.four_way_handshake = true;
6896 }
6897
6898 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6899 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6900 return -EINVAL;
6901 new_triggers.rfkill_release = true;
6902 }
6903
ff1b6e69
JB		 6904 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6905 struct nlattr *pat;
6906 int n_patterns = 0;
6907 int rem, pat_len, mask_len;
6908 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6909
6910 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6911 rem)
6912 n_patterns++;
6913 if (n_patterns > wowlan->n_patterns)
6914 return -EINVAL;
6915
6916 new_triggers.patterns = kcalloc(n_patterns,
6917 sizeof(new_triggers.patterns[0]),
6918 GFP_KERNEL);
6919 if (!new_triggers.patterns)
6920 return -ENOMEM;
6921
6922 new_triggers.n_patterns = n_patterns;
6923 i = 0;
6924
6925 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6926 rem) {
6927 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6928 nla_data(pat), nla_len(pat), NULL);
6929 err = -EINVAL;
6930 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6931 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6932 goto error;
6933 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6934 mask_len = DIV_ROUND_UP(pat_len, 8);
6935 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6936 mask_len)
6937 goto error;
6938 if (pat_len > wowlan->pattern_max_len ||
6939 pat_len < wowlan->pattern_min_len)
6940 goto error;
6941
6942 new_triggers.patterns[i].mask =
6943 kmalloc(mask_len + pat_len, GFP_KERNEL);
6944 if (!new_triggers.patterns[i].mask) {
6945 err = -ENOMEM;
6946 goto error;
6947 }
6948 new_triggers.patterns[i].pattern =
6949 new_triggers.patterns[i].mask + mask_len;
6950 memcpy(new_triggers.patterns[i].mask,
6951 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6952 mask_len);
6953 new_triggers.patterns[i].pattern_len = pat_len;
6954 memcpy(new_triggers.patterns[i].pattern,
6955 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6956 pat_len);
6957 i++;
6958 }
6959 }
6960
ae33bd81
JB		 6961 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6962 if (!ntrig) {
6963 err = -ENOMEM;
6964 goto error;
ff1b6e69 6965 }
ae33bd81
JB		 6966 cfg80211_rdev_free_wowlan(rdev);
6967 rdev->wowlan = ntrig;
ff1b6e69 6968
ae33bd81 6969 set_wakeup:
6d52563f 6970 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 6971 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 6972
ff1b6e69
JB		 6973 return 0;
6974 error:
6975 for (i = 0; i < new_triggers.n_patterns; i++)
6976 kfree(new_triggers.patterns[i].mask);
6977 kfree(new_triggers.patterns);
6978 return err;
6979}
dfb89c56 6980#endif
ff1b6e69 6981
e5497d76
JB		 6982static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6983{
6984 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6985 struct net_device *dev = info->user_ptr[1];
6986 struct wireless_dev *wdev = dev->ieee80211_ptr;
6987 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6988 struct cfg80211_gtk_rekey_data rekey_data;
6989 int err;
6990
6991 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6992 return -EINVAL;
6993
6994 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6995 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6996 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6997 nl80211_rekey_policy);
6998 if (err)
6999 return err;
7000
7001 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7002 return -ERANGE;
7003 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7004 return -ERANGE;
7005 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7006 return -ERANGE;
7007
7008 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7009 NL80211_KEK_LEN);
7010 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7011 NL80211_KCK_LEN);
7012 memcpy(rekey_data.replay_ctr,
7013 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7014 NL80211_REPLAY_CTR_LEN);
7015
7016 wdev_lock(wdev);
7017 if (!wdev->current_bss) {
7018 err = -ENOTCONN;
7019 goto out;
7020 }
7021
7022 if (!rdev->ops->set_rekey_data) {
7023 err = -EOPNOTSUPP;
7024 goto out;
7025 }
7026
e35e4d28 7027 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 7028 out:
7029 wdev_unlock(wdev);
7030 return err;
7031}
7032
28946da7
JB		 7033static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7034 struct genl_info *info)
7035{
7036 struct net_device *dev = info->user_ptr[1];
7037 struct wireless_dev *wdev = dev->ieee80211_ptr;
7038
7039 if (wdev->iftype != NL80211_IFTYPE_AP &&
7040 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7041 return -EINVAL;
7042
15e47304 7043 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 7044 return -EBUSY;
7045
15e47304 7046 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 7047 return 0;
7048}
7049
7f6cf311
JB		 7050static int nl80211_probe_client(struct sk_buff *skb,
7051 struct genl_info *info)
7052{
7053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7054 struct net_device *dev = info->user_ptr[1];
7055 struct wireless_dev *wdev = dev->ieee80211_ptr;
7056 struct sk_buff *msg;
7057 void *hdr;
7058 const u8 *addr;
7059 u64 cookie;
7060 int err;
7061
7062 if (wdev->iftype != NL80211_IFTYPE_AP &&
7063 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7064 return -EOPNOTSUPP;
7065
7066 if (!info->attrs[NL80211_ATTR_MAC])
7067 return -EINVAL;
7068
7069 if (!rdev->ops->probe_client)
7070 return -EOPNOTSUPP;
7071
7072 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7073 if (!msg)
7074 return -ENOMEM;
7075
15e47304 7076 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 7077 NL80211_CMD_PROBE_CLIENT);
7078
7079 if (IS_ERR(hdr)) {
7080 err = PTR_ERR(hdr);
7081 goto free_msg;
7082 }
7083
7084 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7085
e35e4d28 7086 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 7087 if (err)
7088 goto free_msg;
7089
9360ffd1
DM		 7090 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7091 goto nla_put_failure;
7f6cf311
JB		 7092
7093 genlmsg_end(msg, hdr);
7094
7095 return genlmsg_reply(msg, info);
7096
7097 nla_put_failure:
7098 err = -ENOBUFS;
7099 free_msg:
7100 nlmsg_free(msg);
7101 return err;
7102}
7103
5e760230
JB		 7104static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7105{
7106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 7107 struct cfg80211_beacon_registration *reg, *nreg;
7108 int rv;
5e760230
JB		 7109
7110 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7111 return -EOPNOTSUPP;
7112
37c73b5f
BG		 7113 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7114 if (!nreg)
7115 return -ENOMEM;
7116
7117 /* First, check if already registered. */
7118 spin_lock_bh(&rdev->beacon_registrations_lock);
7119 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7120 if (reg->nlportid == info->snd_portid) {
7121 rv = -EALREADY;
7122 goto out_err;
7123 }
7124 }
7125 /* Add it to the list */
7126 nreg->nlportid = info->snd_portid;
7127 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 7128
37c73b5f 7129 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 7130
7131 return 0;
37c73b5f
BG		 7132out_err:
7133 spin_unlock_bh(&rdev->beacon_registrations_lock);
7134 kfree(nreg);
7135 return rv;
5e760230
JB		 7136}
7137
98104fde
JB		 7138static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7139{
7140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7141 struct wireless_dev *wdev = info->user_ptr[1];
7142 int err;
7143
7144 if (!rdev->ops->start_p2p_device)
7145 return -EOPNOTSUPP;
7146
7147 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7148 return -EOPNOTSUPP;
7149
7150 if (wdev->p2p_started)
7151 return 0;
7152
7153 mutex_lock(&rdev->devlist_mtx);
7154 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7155 mutex_unlock(&rdev->devlist_mtx);
7156 if (err)
7157 return err;
7158
eeb126e9 7159 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 7160 if (err)
7161 return err;
7162
7163 wdev->p2p_started = true;
7164 mutex_lock(&rdev->devlist_mtx);
7165 rdev->opencount++;
7166 mutex_unlock(&rdev->devlist_mtx);
7167
7168 return 0;
7169}
7170
7171static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7172{
7173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7174 struct wireless_dev *wdev = info->user_ptr[1];
7175
7176 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7177 return -EOPNOTSUPP;
7178
7179 if (!rdev->ops->stop_p2p_device)
7180 return -EOPNOTSUPP;
7181
7182 if (!wdev->p2p_started)
7183 return 0;
7184
eeb126e9 7185 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 7186 wdev->p2p_started = false;
7187
7188 mutex_lock(&rdev->devlist_mtx);
7189 rdev->opencount--;
7190 mutex_unlock(&rdev->devlist_mtx);
7191
7192 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7193 rdev->scan_req->aborted = true;
7194 ___cfg80211_scan_done(rdev, true);
7195 }
7196
7197 return 0;
7198}
7199
4c476991
JB		 7200#define NL80211_FLAG_NEED_WIPHY 0x01
7201#define NL80211_FLAG_NEED_NETDEV 0x02
7202#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 7203#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7204#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7205 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 7206#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 7207/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 7208#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7209 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 7210
7211static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7212 struct genl_info *info)
7213{
7214 struct cfg80211_registered_device *rdev;
89a54e48 7215 struct wireless_dev *wdev;
4c476991 7216 struct net_device *dev;
4c476991
JB		 7217 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7218
7219 if (rtnl)
7220 rtnl_lock();
7221
7222 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 7223 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 7224 if (IS_ERR(rdev)) {
7225 if (rtnl)
7226 rtnl_unlock();
7227 return PTR_ERR(rdev);
7228 }
7229 info->user_ptr[0] = rdev;
1bf614ef
JB		 7230 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7231 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7232 mutex_lock(&cfg80211_mutex);
7233 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7234 info->attrs);
7235 if (IS_ERR(wdev)) {
7236 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7237 if (rtnl)
7238 rtnl_unlock();
89a54e48 7239 return PTR_ERR(wdev);
4c476991 7240 }
89a54e48 7241
89a54e48
JB		 7242 dev = wdev->netdev;
7243 rdev = wiphy_to_dev(wdev->wiphy);
7244
1bf614ef
JB		 7245 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7246 if (!dev) {
7247 mutex_unlock(&cfg80211_mutex);
7248 if (rtnl)
7249 rtnl_unlock();
7250 return -EINVAL;
7251 }
7252
7253 info->user_ptr[1] = dev;
7254 } else {
7255 info->user_ptr[1] = wdev;
41265714 7256 }
1bf614ef
JB		 7257
7258 if (dev) {
7259 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7260 !netif_running(dev)) {
7261 mutex_unlock(&cfg80211_mutex);
7262 if (rtnl)
7263 rtnl_unlock();
7264 return -ENETDOWN;
7265 }
7266
7267 dev_hold(dev);
98104fde
JB		 7268 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7269 if (!wdev->p2p_started) {
7270 mutex_unlock(&cfg80211_mutex);
7271 if (rtnl)
7272 rtnl_unlock();
7273 return -ENETDOWN;
7274 }
41265714 7275 }
89a54e48 7276
89a54e48
JB		 7277 cfg80211_lock_rdev(rdev);
7278
7279 mutex_unlock(&cfg80211_mutex);
7280
4c476991 7281 info->user_ptr[0] = rdev;
4c476991
JB		 7282 }
7283
7284 return 0;
7285}
7286
7287static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7288 struct genl_info *info)
7289{
7290 if (info->user_ptr[0])
7291 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7292 if (info->user_ptr[1]) {
7293 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7294 struct wireless_dev *wdev = info->user_ptr[1];
7295
7296 if (wdev->netdev)
7297 dev_put(wdev->netdev);
7298 } else {
7299 dev_put(info->user_ptr[1]);
7300 }
7301 }
4c476991
JB		 7302 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7303 rtnl_unlock();
7304}
7305
55682965
JB		 7306static struct genl_ops nl80211_ops[] = {
7307 {
7308 .cmd = NL80211_CMD_GET_WIPHY,
7309 .doit = nl80211_get_wiphy,
7310 .dumpit = nl80211_dump_wiphy,
7311 .policy = nl80211_policy,
7312 /* can be retrieved by unprivileged users */
4c476991 7313 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7314 },
7315 {
7316 .cmd = NL80211_CMD_SET_WIPHY,
7317 .doit = nl80211_set_wiphy,
7318 .policy = nl80211_policy,
7319 .flags = GENL_ADMIN_PERM,
4c476991 7320 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7321 },
7322 {
7323 .cmd = NL80211_CMD_GET_INTERFACE,
7324 .doit = nl80211_get_interface,
7325 .dumpit = nl80211_dump_interface,
7326 .policy = nl80211_policy,
7327 /* can be retrieved by unprivileged users */
72fb2abc 7328 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7329 },
7330 {
7331 .cmd = NL80211_CMD_SET_INTERFACE,
7332 .doit = nl80211_set_interface,
7333 .policy = nl80211_policy,
7334 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7335 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7336 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7337 },
7338 {
7339 .cmd = NL80211_CMD_NEW_INTERFACE,
7340 .doit = nl80211_new_interface,
7341 .policy = nl80211_policy,
7342 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7343 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7344 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7345 },
7346 {
7347 .cmd = NL80211_CMD_DEL_INTERFACE,
7348 .doit = nl80211_del_interface,
7349 .policy = nl80211_policy,
41ade00f 7350 .flags = GENL_ADMIN_PERM,
84efbb84 7351 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7352 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7353 },
7354 {
7355 .cmd = NL80211_CMD_GET_KEY,
7356 .doit = nl80211_get_key,
7357 .policy = nl80211_policy,
7358 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7359 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7360 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7361 },
7362 {
7363 .cmd = NL80211_CMD_SET_KEY,
7364 .doit = nl80211_set_key,
7365 .policy = nl80211_policy,
7366 .flags = GENL_ADMIN_PERM,
41265714 7367 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7368 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7369 },
7370 {
7371 .cmd = NL80211_CMD_NEW_KEY,
7372 .doit = nl80211_new_key,
7373 .policy = nl80211_policy,
7374 .flags = GENL_ADMIN_PERM,
41265714 7375 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7376 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7377 },
7378 {
7379 .cmd = NL80211_CMD_DEL_KEY,
7380 .doit = nl80211_del_key,
7381 .policy = nl80211_policy,
55682965 7382 .flags = GENL_ADMIN_PERM,
41265714 7383 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7384 NL80211_FLAG_NEED_RTNL,
55682965 7385 },
ed1b6cc7
JB		 7386 {
7387 .cmd = NL80211_CMD_SET_BEACON,
7388 .policy = nl80211_policy,
7389 .flags = GENL_ADMIN_PERM,
8860020e 7390 .doit = nl80211_set_beacon,
2b5f8b0b 7391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7392 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7393 },
7394 {
8860020e 7395 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7396 .policy = nl80211_policy,
7397 .flags = GENL_ADMIN_PERM,
8860020e 7398 .doit = nl80211_start_ap,
2b5f8b0b 7399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7400 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7401 },
7402 {
8860020e 7403 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7404 .policy = nl80211_policy,
7405 .flags = GENL_ADMIN_PERM,
8860020e 7406 .doit = nl80211_stop_ap,
2b5f8b0b 7407 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7408 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7409 },
5727ef1b
JB		 7410 {
7411 .cmd = NL80211_CMD_GET_STATION,
7412 .doit = nl80211_get_station,
2ec600d6 7413 .dumpit = nl80211_dump_station,
5727ef1b 7414 .policy = nl80211_policy,
4c476991
JB		 7415 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7416 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7417 },
7418 {
7419 .cmd = NL80211_CMD_SET_STATION,
7420 .doit = nl80211_set_station,
7421 .policy = nl80211_policy,
7422 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7423 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7424 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7425 },
7426 {
7427 .cmd = NL80211_CMD_NEW_STATION,
7428 .doit = nl80211_new_station,
7429 .policy = nl80211_policy,
7430 .flags = GENL_ADMIN_PERM,
41265714 7431 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7432 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7433 },
7434 {
7435 .cmd = NL80211_CMD_DEL_STATION,
7436 .doit = nl80211_del_station,
7437 .policy = nl80211_policy,
2ec600d6 7438 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7439 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7440 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7441 },
7442 {
7443 .cmd = NL80211_CMD_GET_MPATH,
7444 .doit = nl80211_get_mpath,
7445 .dumpit = nl80211_dump_mpath,
7446 .policy = nl80211_policy,
7447 .flags = GENL_ADMIN_PERM,
41265714 7448 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7449 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7450 },
7451 {
7452 .cmd = NL80211_CMD_SET_MPATH,
7453 .doit = nl80211_set_mpath,
7454 .policy = nl80211_policy,
7455 .flags = GENL_ADMIN_PERM,
41265714 7456 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7457 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7458 },
7459 {
7460 .cmd = NL80211_CMD_NEW_MPATH,
7461 .doit = nl80211_new_mpath,
7462 .policy = nl80211_policy,
7463 .flags = GENL_ADMIN_PERM,
41265714 7464 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7465 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7466 },
7467 {
7468 .cmd = NL80211_CMD_DEL_MPATH,
7469 .doit = nl80211_del_mpath,
7470 .policy = nl80211_policy,
9f1ba906 7471 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7472 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7473 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 7474 },
7475 {
7476 .cmd = NL80211_CMD_SET_BSS,
7477 .doit = nl80211_set_bss,
7478 .policy = nl80211_policy,
b2e1b302 7479 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7480 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7481 NL80211_FLAG_NEED_RTNL,
b2e1b302 7482 },
f130347c
LR		 7483 {
7484 .cmd = NL80211_CMD_GET_REG,
7485 .doit = nl80211_get_reg,
7486 .policy = nl80211_policy,
7487 /* can be retrieved by unprivileged users */
7488 },
b2e1b302
LR		 7489 {
7490 .cmd = NL80211_CMD_SET_REG,
7491 .doit = nl80211_set_reg,
7492 .policy = nl80211_policy,
7493 .flags = GENL_ADMIN_PERM,
7494 },
7495 {
7496 .cmd = NL80211_CMD_REQ_SET_REG,
7497 .doit = nl80211_req_set_reg,
7498 .policy = nl80211_policy,
93da9cc1 7499 .flags = GENL_ADMIN_PERM,
7500 },
7501 {
24bdd9f4
JC		 7502 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7503 .doit = nl80211_get_mesh_config,
93da9cc1 7504 .policy = nl80211_policy,
7505 /* can be retrieved by unprivileged users */
2b5f8b0b 7506 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7507 NL80211_FLAG_NEED_RTNL,
93da9cc1 7508 },
7509 {
24bdd9f4
JC		 7510 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7511 .doit = nl80211_update_mesh_config,
93da9cc1 7512 .policy = nl80211_policy,
9aed3cc1 7513 .flags = GENL_ADMIN_PERM,
29cbe68c 7514 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7515 NL80211_FLAG_NEED_RTNL,
9aed3cc1 7516 },
2a519311
JB		 7517 {
7518 .cmd = NL80211_CMD_TRIGGER_SCAN,
7519 .doit = nl80211_trigger_scan,
7520 .policy = nl80211_policy,
7521 .flags = GENL_ADMIN_PERM,
fd014284 7522 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7523 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 7524 },
7525 {
7526 .cmd = NL80211_CMD_GET_SCAN,
7527 .policy = nl80211_policy,
7528 .dumpit = nl80211_dump_scan,
7529 },
807f8a8c
LC		 7530 {
7531 .cmd = NL80211_CMD_START_SCHED_SCAN,
7532 .doit = nl80211_start_sched_scan,
7533 .policy = nl80211_policy,
7534 .flags = GENL_ADMIN_PERM,
7535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7536 NL80211_FLAG_NEED_RTNL,
7537 },
7538 {
7539 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7540 .doit = nl80211_stop_sched_scan,
7541 .policy = nl80211_policy,
7542 .flags = GENL_ADMIN_PERM,
7543 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7544 NL80211_FLAG_NEED_RTNL,
7545 },
636a5d36
JM		 7546 {
7547 .cmd = NL80211_CMD_AUTHENTICATE,
7548 .doit = nl80211_authenticate,
7549 .policy = nl80211_policy,
7550 .flags = GENL_ADMIN_PERM,
41265714 7551 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7552 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7553 },
7554 {
7555 .cmd = NL80211_CMD_ASSOCIATE,
7556 .doit = nl80211_associate,
7557 .policy = nl80211_policy,
7558 .flags = GENL_ADMIN_PERM,
41265714 7559 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7560 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7561 },
7562 {
7563 .cmd = NL80211_CMD_DEAUTHENTICATE,
7564 .doit = nl80211_deauthenticate,
7565 .policy = nl80211_policy,
7566 .flags = GENL_ADMIN_PERM,
41265714 7567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7568 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7569 },
7570 {
7571 .cmd = NL80211_CMD_DISASSOCIATE,
7572 .doit = nl80211_disassociate,
7573 .policy = nl80211_policy,
7574 .flags = GENL_ADMIN_PERM,
41265714 7575 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7576 NL80211_FLAG_NEED_RTNL,
636a5d36 7577 },
04a773ad
JB		 7578 {
7579 .cmd = NL80211_CMD_JOIN_IBSS,
7580 .doit = nl80211_join_ibss,
7581 .policy = nl80211_policy,
7582 .flags = GENL_ADMIN_PERM,
41265714 7583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7584 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 7585 },
7586 {
7587 .cmd = NL80211_CMD_LEAVE_IBSS,
7588 .doit = nl80211_leave_ibss,
7589 .policy = nl80211_policy,
7590 .flags = GENL_ADMIN_PERM,
41265714 7591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7592 NL80211_FLAG_NEED_RTNL,
04a773ad 7593 },
aff89a9b
JB		 7594#ifdef CONFIG_NL80211_TESTMODE
7595 {
7596 .cmd = NL80211_CMD_TESTMODE,
7597 .doit = nl80211_testmode_do,
71063f0e 7598 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7599 .policy = nl80211_policy,
7600 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7601 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7602 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7603 },
7604#endif
b23aa676
SO		 7605 {
7606 .cmd = NL80211_CMD_CONNECT,
7607 .doit = nl80211_connect,
7608 .policy = nl80211_policy,
7609 .flags = GENL_ADMIN_PERM,
41265714 7610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7611 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7612 },
7613 {
7614 .cmd = NL80211_CMD_DISCONNECT,
7615 .doit = nl80211_disconnect,
7616 .policy = nl80211_policy,
7617 .flags = GENL_ADMIN_PERM,
41265714 7618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7619 NL80211_FLAG_NEED_RTNL,
b23aa676 7620 },
463d0183
JB		 7621 {
7622 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7623 .doit = nl80211_wiphy_netns,
7624 .policy = nl80211_policy,
7625 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7626 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7627 NL80211_FLAG_NEED_RTNL,
463d0183 7628 },
61fa713c
HS		 7629 {
7630 .cmd = NL80211_CMD_GET_SURVEY,
7631 .policy = nl80211_policy,
7632 .dumpit = nl80211_dump_survey,
7633 },
67fbb16b
SO		 7634 {
7635 .cmd = NL80211_CMD_SET_PMKSA,
7636 .doit = nl80211_setdel_pmksa,
7637 .policy = nl80211_policy,
7638 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7639 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7640 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7641 },
7642 {
7643 .cmd = NL80211_CMD_DEL_PMKSA,
7644 .doit = nl80211_setdel_pmksa,
7645 .policy = nl80211_policy,
7646 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7647 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7648 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7649 },
7650 {
7651 .cmd = NL80211_CMD_FLUSH_PMKSA,
7652 .doit = nl80211_flush_pmksa,
7653 .policy = nl80211_policy,
7654 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7655 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7656 NL80211_FLAG_NEED_RTNL,
67fbb16b 7657 },
9588bbd5
JM		 7658 {
7659 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7660 .doit = nl80211_remain_on_channel,
7661 .policy = nl80211_policy,
7662 .flags = GENL_ADMIN_PERM,
71bbc994 7663 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7664 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7665 },
7666 {
7667 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7668 .doit = nl80211_cancel_remain_on_channel,
7669 .policy = nl80211_policy,
7670 .flags = GENL_ADMIN_PERM,
71bbc994 7671 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7672 NL80211_FLAG_NEED_RTNL,
9588bbd5 7673 },
13ae75b1
JM		 7674 {
7675 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7676 .doit = nl80211_set_tx_bitrate_mask,
7677 .policy = nl80211_policy,
7678 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7679 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7680 NL80211_FLAG_NEED_RTNL,
13ae75b1 7681 },
026331c4 7682 {
2e161f78
JB		 7683 .cmd = NL80211_CMD_REGISTER_FRAME,
7684 .doit = nl80211_register_mgmt,
026331c4
JM		 7685 .policy = nl80211_policy,
7686 .flags = GENL_ADMIN_PERM,
71bbc994 7687 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7688 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7689 },
7690 {
2e161f78
JB		 7691 .cmd = NL80211_CMD_FRAME,
7692 .doit = nl80211_tx_mgmt,
026331c4 7693 .policy = nl80211_policy,
f7ca38df 7694 .flags = GENL_ADMIN_PERM,
71bbc994 7695 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 7696 NL80211_FLAG_NEED_RTNL,
7697 },
7698 {
7699 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7700 .doit = nl80211_tx_mgmt_cancel_wait,
7701 .policy = nl80211_policy,
026331c4 7702 .flags = GENL_ADMIN_PERM,
71bbc994 7703 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7704 NL80211_FLAG_NEED_RTNL,
026331c4 7705 },
ffb9eb3d
KV		 7706 {
7707 .cmd = NL80211_CMD_SET_POWER_SAVE,
7708 .doit = nl80211_set_power_save,
7709 .policy = nl80211_policy,
7710 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7711 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7712 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7713 },
7714 {
7715 .cmd = NL80211_CMD_GET_POWER_SAVE,
7716 .doit = nl80211_get_power_save,
7717 .policy = nl80211_policy,
7718 /* can be retrieved by unprivileged users */
4c476991
JB		 7719 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7720 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7721 },
d6dc1a38
JO		 7722 {
7723 .cmd = NL80211_CMD_SET_CQM,
7724 .doit = nl80211_set_cqm,
7725 .policy = nl80211_policy,
7726 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7727 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7728 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7729 },
f444de05
JB		 7730 {
7731 .cmd = NL80211_CMD_SET_CHANNEL,
7732 .doit = nl80211_set_channel,
7733 .policy = nl80211_policy,
7734 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7735 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7736 NL80211_FLAG_NEED_RTNL,
f444de05 7737 },
e8347eba
BJ		 7738 {
7739 .cmd = NL80211_CMD_SET_WDS_PEER,
7740 .doit = nl80211_set_wds_peer,
7741 .policy = nl80211_policy,
7742 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7743 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7744 NL80211_FLAG_NEED_RTNL,
e8347eba 7745 },
29cbe68c
JB		 7746 {
7747 .cmd = NL80211_CMD_JOIN_MESH,
7748 .doit = nl80211_join_mesh,
7749 .policy = nl80211_policy,
7750 .flags = GENL_ADMIN_PERM,
7751 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7752 NL80211_FLAG_NEED_RTNL,
7753 },
7754 {
7755 .cmd = NL80211_CMD_LEAVE_MESH,
7756 .doit = nl80211_leave_mesh,
7757 .policy = nl80211_policy,
7758 .flags = GENL_ADMIN_PERM,
7759 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7760 NL80211_FLAG_NEED_RTNL,
7761 },
dfb89c56 7762#ifdef CONFIG_PM
ff1b6e69
JB		 7763 {
7764 .cmd = NL80211_CMD_GET_WOWLAN,
7765 .doit = nl80211_get_wowlan,
7766 .policy = nl80211_policy,
7767 /* can be retrieved by unprivileged users */
7768 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7769 NL80211_FLAG_NEED_RTNL,
7770 },
7771 {
7772 .cmd = NL80211_CMD_SET_WOWLAN,
7773 .doit = nl80211_set_wowlan,
7774 .policy = nl80211_policy,
7775 .flags = GENL_ADMIN_PERM,
7776 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7777 NL80211_FLAG_NEED_RTNL,
7778 },
dfb89c56 7779#endif
e5497d76
JB		 7780 {
7781 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7782 .doit = nl80211_set_rekey_data,
7783 .policy = nl80211_policy,
7784 .flags = GENL_ADMIN_PERM,
7785 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7786 NL80211_FLAG_NEED_RTNL,
7787 },
109086ce
AN		 7788 {
7789 .cmd = NL80211_CMD_TDLS_MGMT,
7790 .doit = nl80211_tdls_mgmt,
7791 .policy = nl80211_policy,
7792 .flags = GENL_ADMIN_PERM,
7793 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7794 NL80211_FLAG_NEED_RTNL,
7795 },
7796 {
7797 .cmd = NL80211_CMD_TDLS_OPER,
7798 .doit = nl80211_tdls_oper,
7799 .policy = nl80211_policy,
7800 .flags = GENL_ADMIN_PERM,
7801 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7802 NL80211_FLAG_NEED_RTNL,
7803 },
28946da7
JB		 7804 {
7805 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7806 .doit = nl80211_register_unexpected_frame,
7807 .policy = nl80211_policy,
7808 .flags = GENL_ADMIN_PERM,
7809 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7810 NL80211_FLAG_NEED_RTNL,
7811 },
7f6cf311
JB		 7812 {
7813 .cmd = NL80211_CMD_PROBE_CLIENT,
7814 .doit = nl80211_probe_client,
7815 .policy = nl80211_policy,
7816 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7817 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7818 NL80211_FLAG_NEED_RTNL,
7819 },
5e760230
JB		 7820 {
7821 .cmd = NL80211_CMD_REGISTER_BEACONS,
7822 .doit = nl80211_register_beacons,
7823 .policy = nl80211_policy,
7824 .flags = GENL_ADMIN_PERM,
7825 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7826 NL80211_FLAG_NEED_RTNL,
7827 },
1d9d9213
SW		 7828 {
7829 .cmd = NL80211_CMD_SET_NOACK_MAP,
7830 .doit = nl80211_set_noack_map,
7831 .policy = nl80211_policy,
7832 .flags = GENL_ADMIN_PERM,
7833 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7834 NL80211_FLAG_NEED_RTNL,
7835 },
98104fde
JB		 7836 {
7837 .cmd = NL80211_CMD_START_P2P_DEVICE,
7838 .doit = nl80211_start_p2p_device,
7839 .policy = nl80211_policy,
7840 .flags = GENL_ADMIN_PERM,
7841 .internal_flags = NL80211_FLAG_NEED_WDEV |
7842 NL80211_FLAG_NEED_RTNL,
7843 },
7844 {
7845 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7846 .doit = nl80211_stop_p2p_device,
7847 .policy = nl80211_policy,
7848 .flags = GENL_ADMIN_PERM,
7849 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7850 NL80211_FLAG_NEED_RTNL,
7851 },
f4e583c8
AQ		 7852 {
7853 .cmd = NL80211_CMD_SET_MCAST_RATE,
7854 .doit = nl80211_set_mcast_rate,
7855 .policy = nl80211_policy,
7856 .flags = GENL_ADMIN_PERM,
7857 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7858 NL80211_FLAG_NEED_RTNL,
7859 },
55682965 7860};
9588bbd5 7861
6039f6d2
JM		 7862static struct genl_multicast_group nl80211_mlme_mcgrp = {
7863 .name = "mlme",
7864};
55682965
JB		 7865
7866/* multicast groups */
7867static struct genl_multicast_group nl80211_config_mcgrp = {
7868 .name = "config",
7869};
2a519311
JB		 7870static struct genl_multicast_group nl80211_scan_mcgrp = {
7871 .name = "scan",
7872};
73d54c9e
LR		 7873static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7874 .name = "regulatory",
7875};
55682965
JB		 7876
7877/* notification functions */
7878
7879void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7880{
7881 struct sk_buff *msg;
7882
fd2120ca 7883 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7884 if (!msg)
7885 return;
7886
7887 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7888 nlmsg_free(msg);
7889 return;
7890 }
7891
463d0183
JB		 7892 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7893 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7894}
7895
362a415d
JB		 7896static int nl80211_add_scan_req(struct sk_buff *msg,
7897 struct cfg80211_registered_device *rdev)
7898{
7899 struct cfg80211_scan_request *req = rdev->scan_req;
7900 struct nlattr *nest;
7901 int i;
7902
667503dd
JB		 7903 ASSERT_RDEV_LOCK(rdev);
7904
362a415d
JB		 7905 if (WARN_ON(!req))
7906 return 0;
7907
7908 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7909 if (!nest)
7910 goto nla_put_failure;
9360ffd1
DM		 7911 for (i = 0; i < req->n_ssids; i++) {
7912 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7913 goto nla_put_failure;
7914 }
362a415d
JB		 7915 nla_nest_end(msg, nest);
7916
7917 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7918 if (!nest)
7919 goto nla_put_failure;
9360ffd1
DM		 7920 for (i = 0; i < req->n_channels; i++) {
7921 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7922 goto nla_put_failure;
7923 }
362a415d
JB		 7924 nla_nest_end(msg, nest);
7925
9360ffd1
DM		 7926 if (req->ie &&
7927 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7928 goto nla_put_failure;
362a415d 7929
ed473771
SL		 7930 if (req->flags)
7931 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7932
362a415d
JB		 7933 return 0;
7934 nla_put_failure:
7935 return -ENOBUFS;
7936}
7937
a538e2d5
JB		 7938static int nl80211_send_scan_msg(struct sk_buff *msg,
7939 struct cfg80211_registered_device *rdev,
fd014284 7940 struct wireless_dev *wdev,
15e47304 7941 u32 portid, u32 seq, int flags,
a538e2d5 7942 u32 cmd)
2a519311
JB		 7943{
7944 void *hdr;
7945
15e47304 7946 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 7947 if (!hdr)
7948 return -1;
7949
9360ffd1 7950 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 7951 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7952 wdev->netdev->ifindex)) ||
7953 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 7954 goto nla_put_failure;
2a519311 7955
362a415d
JB		 7956 /* ignore errors and send incomplete event anyway */
7957 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7958
7959 return genlmsg_end(msg, hdr);
7960
7961 nla_put_failure:
7962 genlmsg_cancel(msg, hdr);
7963 return -EMSGSIZE;
7964}
7965
807f8a8c
LC		 7966static int
7967nl80211_send_sched_scan_msg(struct sk_buff *msg,
7968 struct cfg80211_registered_device *rdev,
7969 struct net_device *netdev,
15e47304 7970 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 7971{
7972 void *hdr;
7973
15e47304 7974 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 7975 if (!hdr)
7976 return -1;
7977
9360ffd1
DM		 7978 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7979 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7980 goto nla_put_failure;
807f8a8c
LC		 7981
7982 return genlmsg_end(msg, hdr);
7983
7984 nla_put_failure:
7985 genlmsg_cancel(msg, hdr);
7986 return -EMSGSIZE;
7987}
7988
a538e2d5 7989void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 7990 struct wireless_dev *wdev)
a538e2d5
JB		 7991{
7992 struct sk_buff *msg;
7993
58050fce 7994 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 7995 if (!msg)
7996 return;
7997
fd014284 7998 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 7999 NL80211_CMD_TRIGGER_SCAN) < 0) {
8000 nlmsg_free(msg);
8001 return;
8002 }
8003
463d0183
JB		 8004 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8005 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 8006}
8007
2a519311 8008void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 8009 struct wireless_dev *wdev)
2a519311
JB		 8010{
8011 struct sk_buff *msg;
8012
fd2120ca 8013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8014 if (!msg)
8015 return;
8016
fd014284 8017 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8018 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 8019 nlmsg_free(msg);
8020 return;
8021 }
8022
463d0183
JB		 8023 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8024 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8025}
8026
8027void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 8028 struct wireless_dev *wdev)
2a519311
JB		 8029{
8030 struct sk_buff *msg;
8031
fd2120ca 8032 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8033 if (!msg)
8034 return;
8035
fd014284 8036 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8037 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 8038 nlmsg_free(msg);
8039 return;
8040 }
8041
463d0183
JB		 8042 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8043 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8044}
8045
807f8a8c
LC		 8046void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8047 struct net_device *netdev)
8048{
8049 struct sk_buff *msg;
8050
8051 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8052 if (!msg)
8053 return;
8054
8055 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8056 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8057 nlmsg_free(msg);
8058 return;
8059 }
8060
8061 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8062 nl80211_scan_mcgrp.id, GFP_KERNEL);
8063}
8064
8065void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8066 struct net_device *netdev, u32 cmd)
8067{
8068 struct sk_buff *msg;
8069
58050fce 8070 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 8071 if (!msg)
8072 return;
8073
8074 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8075 nlmsg_free(msg);
8076 return;
8077 }
8078
8079 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8080 nl80211_scan_mcgrp.id, GFP_KERNEL);
8081}
8082
73d54c9e
LR		 8083/*
8084 * This can happen on global regulatory changes or device specific settings
8085 * based on custom world regulatory domains.
8086 */
8087void nl80211_send_reg_change_event(struct regulatory_request *request)
8088{
8089 struct sk_buff *msg;
8090 void *hdr;
8091
fd2120ca 8092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 8093 if (!msg)
8094 return;
8095
8096 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8097 if (!hdr) {
8098 nlmsg_free(msg);
8099 return;
8100 }
8101
8102 /* Userspace can always count this one always being set */
9360ffd1
DM		 8103 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8104 goto nla_put_failure;
8105
8106 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8107 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8108 NL80211_REGDOM_TYPE_WORLD))
8109 goto nla_put_failure;
8110 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8111 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8112 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8113 goto nla_put_failure;
8114 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8115 request->intersect) {
8116 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8117 NL80211_REGDOM_TYPE_INTERSECTION))
8118 goto nla_put_failure;
8119 } else {
8120 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8121 NL80211_REGDOM_TYPE_COUNTRY) ||
8122 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8123 request->alpha2))
8124 goto nla_put_failure;
8125 }
8126
f4173766 8127 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 8128 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8129 goto nla_put_failure;
73d54c9e 8130
3b7b72ee 8131 genlmsg_end(msg, hdr);
73d54c9e 8132
bc43b28c 8133 rcu_read_lock();
463d0183 8134 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 8135 GFP_ATOMIC);
8136 rcu_read_unlock();
73d54c9e
LR		 8137
8138 return;
8139
8140nla_put_failure:
8141 genlmsg_cancel(msg, hdr);
8142 nlmsg_free(msg);
8143}
8144
6039f6d2
JM		 8145static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8146 struct net_device *netdev,
8147 const u8 *buf, size_t len,
e6d6e342 8148 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 8149{
8150 struct sk_buff *msg;
8151 void *hdr;
8152
e6d6e342 8153 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 8154 if (!msg)
8155 return;
8156
8157 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8158 if (!hdr) {
8159 nlmsg_free(msg);
8160 return;
8161 }
8162
9360ffd1
DM		 8163 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8164 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8165 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8166 goto nla_put_failure;
6039f6d2 8167
3b7b72ee 8168 genlmsg_end(msg, hdr);
6039f6d2 8169
463d0183
JB		 8170 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8171 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 8172 return;
8173
8174 nla_put_failure:
8175 genlmsg_cancel(msg, hdr);
8176 nlmsg_free(msg);
8177}
8178
8179void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8180 struct net_device *netdev, const u8 *buf,
8181 size_t len, gfp_t gfp)
6039f6d2
JM		 8182{
8183 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8184 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 8185}
8186
8187void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8188 struct net_device *netdev, const u8 *buf,
e6d6e342 8189 size_t len, gfp_t gfp)
6039f6d2 8190{
e6d6e342
JB		 8191 nl80211_send_mlme_event(rdev, netdev, buf, len,
8192 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 8193}
8194
53b46b84 8195void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8196 struct net_device *netdev, const u8 *buf,
8197 size_t len, gfp_t gfp)
6039f6d2
JM		 8198{
8199 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8200 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 8201}
8202
53b46b84
JM		 8203void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8204 struct net_device *netdev, const u8 *buf,
e6d6e342 8205 size_t len, gfp_t gfp)
6039f6d2
JM		 8206{
8207 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8208 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 8209}
8210
cf4e594e
JM		 8211void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8212 struct net_device *netdev, const u8 *buf,
8213 size_t len, gfp_t gfp)
8214{
8215 nl80211_send_mlme_event(rdev, netdev, buf, len,
8216 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8217}
8218
8219void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8220 struct net_device *netdev, const u8 *buf,
8221 size_t len, gfp_t gfp)
8222{
8223 nl80211_send_mlme_event(rdev, netdev, buf, len,
8224 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8225}
8226
1b06bb40
LR		 8227static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8228 struct net_device *netdev, int cmd,
e6d6e342 8229 const u8 *addr, gfp_t gfp)
1965c853
JM		 8230{
8231 struct sk_buff *msg;
8232 void *hdr;
8233
e6d6e342 8234 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 8235 if (!msg)
8236 return;
8237
8238 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8239 if (!hdr) {
8240 nlmsg_free(msg);
8241 return;
8242 }
8243
9360ffd1
DM		 8244 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8245 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8246 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8247 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8248 goto nla_put_failure;
1965c853 8249
3b7b72ee 8250 genlmsg_end(msg, hdr);
1965c853 8251
463d0183
JB		 8252 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8253 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8254 return;
8255
8256 nla_put_failure:
8257 genlmsg_cancel(msg, hdr);
8258 nlmsg_free(msg);
8259}
8260
8261void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8262 struct net_device *netdev, const u8 *addr,
8263 gfp_t gfp)
1965c853
JM		 8264{
8265 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8266 addr, gfp);
1965c853
JM		 8267}
8268
8269void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8270 struct net_device *netdev, const u8 *addr,
8271 gfp_t gfp)
1965c853 8272{
e6d6e342
JB		 8273 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8274 addr, gfp);
1965c853
JM		 8275}
8276
b23aa676
SO		 8277void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8278 struct net_device *netdev, const u8 *bssid,
8279 const u8 *req_ie, size_t req_ie_len,
8280 const u8 *resp_ie, size_t resp_ie_len,
8281 u16 status, gfp_t gfp)
8282{
8283 struct sk_buff *msg;
8284 void *hdr;
8285
58050fce 8286 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8287 if (!msg)
8288 return;
8289
8290 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8291 if (!hdr) {
8292 nlmsg_free(msg);
8293 return;
8294 }
8295
9360ffd1
DM		 8296 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8297 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8298 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8299 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8300 (req_ie &&
8301 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8302 (resp_ie &&
8303 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8304 goto nla_put_failure;
b23aa676 8305
3b7b72ee 8306 genlmsg_end(msg, hdr);
b23aa676 8307
463d0183
JB		 8308 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8309 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8310 return;
8311
8312 nla_put_failure:
8313 genlmsg_cancel(msg, hdr);
8314 nlmsg_free(msg);
8315
8316}
8317
8318void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8319 struct net_device *netdev, const u8 *bssid,
8320 const u8 *req_ie, size_t req_ie_len,
8321 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8322{
8323 struct sk_buff *msg;
8324 void *hdr;
8325
58050fce 8326 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8327 if (!msg)
8328 return;
8329
8330 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8331 if (!hdr) {
8332 nlmsg_free(msg);
8333 return;
8334 }
8335
9360ffd1
DM		 8336 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8337 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8338 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8339 (req_ie &&
8340 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8341 (resp_ie &&
8342 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8343 goto nla_put_failure;
b23aa676 8344
3b7b72ee 8345 genlmsg_end(msg, hdr);
b23aa676 8346
463d0183
JB		 8347 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8348 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8349 return;
8350
8351 nla_put_failure:
8352 genlmsg_cancel(msg, hdr);
8353 nlmsg_free(msg);
8354
8355}
8356
8357void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8358 struct net_device *netdev, u16 reason,
667503dd 8359 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8360{
8361 struct sk_buff *msg;
8362 void *hdr;
8363
58050fce 8364 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8365 if (!msg)
8366 return;
8367
8368 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8369 if (!hdr) {
8370 nlmsg_free(msg);
8371 return;
8372 }
8373
9360ffd1
DM		 8374 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8375 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8376 (from_ap && reason &&
8377 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8378 (from_ap &&
8379 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8380 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8381 goto nla_put_failure;
b23aa676 8382
3b7b72ee 8383 genlmsg_end(msg, hdr);
b23aa676 8384
463d0183
JB		 8385 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8386 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8387 return;
8388
8389 nla_put_failure:
8390 genlmsg_cancel(msg, hdr);
8391 nlmsg_free(msg);
8392
8393}
8394
04a773ad
JB		 8395void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8396 struct net_device *netdev, const u8 *bssid,
8397 gfp_t gfp)
8398{
8399 struct sk_buff *msg;
8400 void *hdr;
8401
fd2120ca 8402 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 8403 if (!msg)
8404 return;
8405
8406 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8407 if (!hdr) {
8408 nlmsg_free(msg);
8409 return;
8410 }
8411
9360ffd1
DM		 8412 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8413 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8414 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8415 goto nla_put_failure;
04a773ad 8416
3b7b72ee 8417 genlmsg_end(msg, hdr);
04a773ad 8418
463d0183
JB		 8419 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8420 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 8421 return;
8422
8423 nla_put_failure:
8424 genlmsg_cancel(msg, hdr);
8425 nlmsg_free(msg);
8426}
8427
c93b5e71
JC		 8428void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8429 struct net_device *netdev,
8430 const u8 *macaddr, const u8* ie, u8 ie_len,
8431 gfp_t gfp)
8432{
8433 struct sk_buff *msg;
8434 void *hdr;
8435
8436 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8437 if (!msg)
8438 return;
8439
8440 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8441 if (!hdr) {
8442 nlmsg_free(msg);
8443 return;
8444 }
8445
9360ffd1
DM		 8446 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8447 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8448 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8449 (ie_len && ie &&
8450 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8451 goto nla_put_failure;
c93b5e71 8452
3b7b72ee 8453 genlmsg_end(msg, hdr);
c93b5e71
JC		 8454
8455 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8456 nl80211_mlme_mcgrp.id, gfp);
8457 return;
8458
8459 nla_put_failure:
8460 genlmsg_cancel(msg, hdr);
8461 nlmsg_free(msg);
8462}
8463
a3b8b056
JM		 8464void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8465 struct net_device *netdev, const u8 *addr,
8466 enum nl80211_key_type key_type, int key_id,
e6d6e342 8467 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 8468{
8469 struct sk_buff *msg;
8470 void *hdr;
8471
e6d6e342 8472 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 8473 if (!msg)
8474 return;
8475
8476 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8477 if (!hdr) {
8478 nlmsg_free(msg);
8479 return;
8480 }
8481
9360ffd1
DM		 8482 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8483 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8484 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8485 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8486 (key_id != -1 &&
8487 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8488 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8489 goto nla_put_failure;
a3b8b056 8490
3b7b72ee 8491 genlmsg_end(msg, hdr);
a3b8b056 8492
463d0183
JB		 8493 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8494 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 8495 return;
8496
8497 nla_put_failure:
8498 genlmsg_cancel(msg, hdr);
8499 nlmsg_free(msg);
8500}
8501
6bad8766
LR		 8502void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8503 struct ieee80211_channel *channel_before,
8504 struct ieee80211_channel *channel_after)
8505{
8506 struct sk_buff *msg;
8507 void *hdr;
8508 struct nlattr *nl_freq;
8509
fd2120ca 8510 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 8511 if (!msg)
8512 return;
8513
8514 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8515 if (!hdr) {
8516 nlmsg_free(msg);
8517 return;
8518 }
8519
8520 /*
8521 * Since we are applying the beacon hint to a wiphy we know its
8522 * wiphy_idx is valid
8523 */
9360ffd1
DM		 8524 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8525 goto nla_put_failure;
6bad8766
LR		 8526
8527 /* Before */
8528 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8529 if (!nl_freq)
8530 goto nla_put_failure;
8531 if (nl80211_msg_put_channel(msg, channel_before))
8532 goto nla_put_failure;
8533 nla_nest_end(msg, nl_freq);
8534
8535 /* After */
8536 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8537 if (!nl_freq)
8538 goto nla_put_failure;
8539 if (nl80211_msg_put_channel(msg, channel_after))
8540 goto nla_put_failure;
8541 nla_nest_end(msg, nl_freq);
8542
3b7b72ee 8543 genlmsg_end(msg, hdr);
6bad8766 8544
463d0183
JB		 8545 rcu_read_lock();
8546 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8547 GFP_ATOMIC);
8548 rcu_read_unlock();
6bad8766
LR		 8549
8550 return;
8551
8552nla_put_failure:
8553 genlmsg_cancel(msg, hdr);
8554 nlmsg_free(msg);
8555}
8556
9588bbd5
JM		 8557static void nl80211_send_remain_on_chan_event(
8558 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 8559 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8560 struct ieee80211_channel *chan,
9588bbd5
JM		 8561 unsigned int duration, gfp_t gfp)
8562{
8563 struct sk_buff *msg;
8564 void *hdr;
8565
8566 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8567 if (!msg)
8568 return;
8569
8570 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8571 if (!hdr) {
8572 nlmsg_free(msg);
8573 return;
8574 }
8575
9360ffd1 8576 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8577 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8578 wdev->netdev->ifindex)) ||
00f53350 8579 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 8580 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 8581 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
8582 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 8583 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8584 goto nla_put_failure;
9588bbd5 8585
9360ffd1
DM		 8586 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8587 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8588 goto nla_put_failure;
9588bbd5 8589
3b7b72ee 8590 genlmsg_end(msg, hdr);
9588bbd5
JM		 8591
8592 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8593 nl80211_mlme_mcgrp.id, gfp);
8594 return;
8595
8596 nla_put_failure:
8597 genlmsg_cancel(msg, hdr);
8598 nlmsg_free(msg);
8599}
8600
8601void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 8602 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8603 struct ieee80211_channel *chan,
9588bbd5
JM		 8604 unsigned int duration, gfp_t gfp)
8605{
8606 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 8607 rdev, wdev, cookie, chan,
42d97a59 8608 duration, gfp);
9588bbd5
JM		 8609}
8610
8611void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 8612 struct cfg80211_registered_device *rdev,
8613 struct wireless_dev *wdev,
42d97a59 8614 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9588bbd5
JM		 8615{
8616 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 8617 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5
JM		 8618}
8619
98b62183
JB		 8620void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8621 struct net_device *dev, const u8 *mac_addr,
8622 struct station_info *sinfo, gfp_t gfp)
8623{
8624 struct sk_buff *msg;
8625
58050fce 8626 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 8627 if (!msg)
8628 return;
8629
66266b3a
JL		 8630 if (nl80211_send_station(msg, 0, 0, 0,
8631 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8632 nlmsg_free(msg);
8633 return;
8634 }
8635
8636 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8637 nl80211_mlme_mcgrp.id, gfp);
8638}
8639
ec15e68b
JM		 8640void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8641 struct net_device *dev, const u8 *mac_addr,
8642 gfp_t gfp)
8643{
8644 struct sk_buff *msg;
8645 void *hdr;
8646
58050fce 8647 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 8648 if (!msg)
8649 return;
8650
8651 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8652 if (!hdr) {
8653 nlmsg_free(msg);
8654 return;
8655 }
8656
9360ffd1
DM		 8657 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8658 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8659 goto nla_put_failure;
ec15e68b 8660
3b7b72ee 8661 genlmsg_end(msg, hdr);
ec15e68b
JM		 8662
8663 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8664 nl80211_mlme_mcgrp.id, gfp);
8665 return;
8666
8667 nla_put_failure:
8668 genlmsg_cancel(msg, hdr);
8669 nlmsg_free(msg);
8670}
8671
ed44a951
PP		 8672void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8673 struct net_device *dev, const u8 *mac_addr,
8674 enum nl80211_connect_failed_reason reason,
8675 gfp_t gfp)
8676{
8677 struct sk_buff *msg;
8678 void *hdr;
8679
8680 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8681 if (!msg)
8682 return;
8683
8684 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8685 if (!hdr) {
8686 nlmsg_free(msg);
8687 return;
8688 }
8689
8690 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8691 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8692 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8693 goto nla_put_failure;
8694
8695 genlmsg_end(msg, hdr);
8696
8697 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8698 nl80211_mlme_mcgrp.id, gfp);
8699 return;
8700
8701 nla_put_failure:
8702 genlmsg_cancel(msg, hdr);
8703 nlmsg_free(msg);
8704}
8705
b92ab5d8
JB		 8706static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8707 const u8 *addr, gfp_t gfp)
28946da7
JB		 8708{
8709 struct wireless_dev *wdev = dev->ieee80211_ptr;
8710 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8711 struct sk_buff *msg;
8712 void *hdr;
8713 int err;
15e47304 8714 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 8715
15e47304 8716 if (!nlportid)
28946da7
JB		 8717 return false;
8718
8719 msg = nlmsg_new(100, gfp);
8720 if (!msg)
8721 return true;
8722
b92ab5d8 8723 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8724 if (!hdr) {
8725 nlmsg_free(msg);
8726 return true;
8727 }
8728
9360ffd1
DM		 8729 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8730 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8731 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8732 goto nla_put_failure;
28946da7
JB		 8733
8734 err = genlmsg_end(msg, hdr);
8735 if (err < 0) {
8736 nlmsg_free(msg);
8737 return true;
8738 }
8739
15e47304 8740 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 8741 return true;
8742
8743 nla_put_failure:
8744 genlmsg_cancel(msg, hdr);
8745 nlmsg_free(msg);
8746 return true;
8747}
8748
b92ab5d8
JB		 8749bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8750{
8751 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8752 addr, gfp);
8753}
8754
8755bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8756 const u8 *addr, gfp_t gfp)
8757{
8758 return __nl80211_unexpected_frame(dev,
8759 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8760 addr, gfp);
8761}
8762
2e161f78 8763int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 8764 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 8765 int freq, int sig_dbm,
8766 const u8 *buf, size_t len, gfp_t gfp)
026331c4 8767{
71bbc994 8768 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8769 struct sk_buff *msg;
8770 void *hdr;
026331c4
JM		 8771
8772 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8773 if (!msg)
8774 return -ENOMEM;
8775
2e161f78 8776 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8777 if (!hdr) {
8778 nlmsg_free(msg);
8779 return -ENOMEM;
8780 }
8781
9360ffd1 8782 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8783 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8784 netdev->ifindex)) ||
9360ffd1
DM		 8785 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8786 (sig_dbm &&
8787 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8788 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8789 goto nla_put_failure;
026331c4 8790
3b7b72ee 8791 genlmsg_end(msg, hdr);
026331c4 8792
15e47304 8793 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 8794
8795 nla_put_failure:
8796 genlmsg_cancel(msg, hdr);
8797 nlmsg_free(msg);
8798 return -ENOBUFS;
8799}
8800
2e161f78 8801void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 8802 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 8803 const u8 *buf, size_t len, bool ack,
8804 gfp_t gfp)
026331c4 8805{
71bbc994 8806 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8807 struct sk_buff *msg;
8808 void *hdr;
8809
8810 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8811 if (!msg)
8812 return;
8813
2e161f78 8814 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8815 if (!hdr) {
8816 nlmsg_free(msg);
8817 return;
8818 }
8819
9360ffd1 8820 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8821 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8822 netdev->ifindex)) ||
9360ffd1
DM		 8823 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8824 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8825 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8826 goto nla_put_failure;
026331c4 8827
3b7b72ee 8828 genlmsg_end(msg, hdr);
026331c4
JM		 8829
8830 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8831 return;
8832
8833 nla_put_failure:
8834 genlmsg_cancel(msg, hdr);
8835 nlmsg_free(msg);
8836}
8837
d6dc1a38
JO		 8838void
8839nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8840 struct net_device *netdev,
8841 enum nl80211_cqm_rssi_threshold_event rssi_event,
8842 gfp_t gfp)
8843{
8844 struct sk_buff *msg;
8845 struct nlattr *pinfoattr;
8846 void *hdr;
8847
58050fce 8848 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 8849 if (!msg)
8850 return;
8851
8852 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8853 if (!hdr) {
8854 nlmsg_free(msg);
8855 return;
8856 }
8857
9360ffd1
DM		 8858 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8859 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8860 goto nla_put_failure;
d6dc1a38
JO		 8861
8862 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8863 if (!pinfoattr)
8864 goto nla_put_failure;
8865
9360ffd1
DM		 8866 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8867 rssi_event))
8868 goto nla_put_failure;
d6dc1a38
JO		 8869
8870 nla_nest_end(msg, pinfoattr);
8871
3b7b72ee 8872 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8873
8874 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8875 nl80211_mlme_mcgrp.id, gfp);
8876 return;
8877
8878 nla_put_failure:
8879 genlmsg_cancel(msg, hdr);
8880 nlmsg_free(msg);
8881}
8882
e5497d76
JB		 8883void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8884 struct net_device *netdev, const u8 *bssid,
8885 const u8 *replay_ctr, gfp_t gfp)
8886{
8887 struct sk_buff *msg;
8888 struct nlattr *rekey_attr;
8889 void *hdr;
8890
58050fce 8891 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 8892 if (!msg)
8893 return;
8894
8895 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8896 if (!hdr) {
8897 nlmsg_free(msg);
8898 return;
8899 }
8900
9360ffd1
DM		 8901 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8902 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8903 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8904 goto nla_put_failure;
e5497d76
JB		 8905
8906 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8907 if (!rekey_attr)
8908 goto nla_put_failure;
8909
9360ffd1
DM		 8910 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8911 NL80211_REPLAY_CTR_LEN, replay_ctr))
8912 goto nla_put_failure;
e5497d76
JB		 8913
8914 nla_nest_end(msg, rekey_attr);
8915
3b7b72ee 8916 genlmsg_end(msg, hdr);
e5497d76
JB		 8917
8918 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8919 nl80211_mlme_mcgrp.id, gfp);
8920 return;
8921
8922 nla_put_failure:
8923 genlmsg_cancel(msg, hdr);
8924 nlmsg_free(msg);
8925}
8926
c9df56b4
JM		 8927void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8928 struct net_device *netdev, int index,
8929 const u8 *bssid, bool preauth, gfp_t gfp)
8930{
8931 struct sk_buff *msg;
8932 struct nlattr *attr;
8933 void *hdr;
8934
58050fce 8935 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 8936 if (!msg)
8937 return;
8938
8939 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8940 if (!hdr) {
8941 nlmsg_free(msg);
8942 return;
8943 }
8944
9360ffd1
DM		 8945 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8946 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8947 goto nla_put_failure;
c9df56b4
JM		 8948
8949 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8950 if (!attr)
8951 goto nla_put_failure;
8952
9360ffd1
DM		 8953 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8954 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8955 (preauth &&
8956 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8957 goto nla_put_failure;
c9df56b4
JM		 8958
8959 nla_nest_end(msg, attr);
8960
3b7b72ee 8961 genlmsg_end(msg, hdr);
c9df56b4
JM		 8962
8963 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8964 nl80211_mlme_mcgrp.id, gfp);
8965 return;
8966
8967 nla_put_failure:
8968 genlmsg_cancel(msg, hdr);
8969 nlmsg_free(msg);
8970}
8971
5314526b 8972void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
683b6d3b
JB		 8973 struct net_device *netdev,
8974 struct cfg80211_chan_def *chandef, gfp_t gfp)
5314526b
TP		 8975{
8976 struct sk_buff *msg;
8977 void *hdr;
8978
58050fce 8979 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 8980 if (!msg)
8981 return;
8982
8983 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8984 if (!hdr) {
8985 nlmsg_free(msg);
8986 return;
8987 }
8988
683b6d3b
JB		 8989 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8990 goto nla_put_failure;
8991
8992 if (nl80211_send_chandef(msg, chandef))
7eab0f64 8993 goto nla_put_failure;
5314526b
TP		 8994
8995 genlmsg_end(msg, hdr);
8996
8997 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8998 nl80211_mlme_mcgrp.id, gfp);
8999 return;
9000
9001 nla_put_failure:
9002 genlmsg_cancel(msg, hdr);
9003 nlmsg_free(msg);
9004}
9005
84f10708
TP		 9006void
9007nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9008 struct net_device *netdev, const u8 *peer,
9009 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9010{
9011 struct sk_buff *msg;
9012 struct nlattr *pinfoattr;
9013 void *hdr;
9014
9015 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9016 if (!msg)
9017 return;
9018
9019 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9020 if (!hdr) {
9021 nlmsg_free(msg);
9022 return;
9023 }
9024
9025 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9026 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9027 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9028 goto nla_put_failure;
9029
9030 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9031 if (!pinfoattr)
9032 goto nla_put_failure;
9033
9034 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9035 goto nla_put_failure;
9036
9037 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9038 goto nla_put_failure;
9039
9040 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9041 goto nla_put_failure;
9042
9043 nla_nest_end(msg, pinfoattr);
9044
9045 genlmsg_end(msg, hdr);
9046
9047 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9048 nl80211_mlme_mcgrp.id, gfp);
9049 return;
9050
9051 nla_put_failure:
9052 genlmsg_cancel(msg, hdr);
9053 nlmsg_free(msg);
9054}
9055
c063dbf5
JB		 9056void
9057nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9058 struct net_device *netdev, const u8 *peer,
9059 u32 num_packets, gfp_t gfp)
9060{
9061 struct sk_buff *msg;
9062 struct nlattr *pinfoattr;
9063 void *hdr;
9064
58050fce 9065 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 9066 if (!msg)
9067 return;
9068
9069 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9070 if (!hdr) {
9071 nlmsg_free(msg);
9072 return;
9073 }
9074
9360ffd1
DM		 9075 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9076 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9077 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9078 goto nla_put_failure;
c063dbf5
JB		 9079
9080 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9081 if (!pinfoattr)
9082 goto nla_put_failure;
9083
9360ffd1
DM		 9084 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9085 goto nla_put_failure;
c063dbf5
JB		 9086
9087 nla_nest_end(msg, pinfoattr);
9088
3b7b72ee 9089 genlmsg_end(msg, hdr);
c063dbf5
JB		 9090
9091 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9092 nl80211_mlme_mcgrp.id, gfp);
9093 return;
9094
9095 nla_put_failure:
9096 genlmsg_cancel(msg, hdr);
9097 nlmsg_free(msg);
9098}
9099
7f6cf311
JB		 9100void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9101 u64 cookie, bool acked, gfp_t gfp)
9102{
9103 struct wireless_dev *wdev = dev->ieee80211_ptr;
9104 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9105 struct sk_buff *msg;
9106 void *hdr;
9107 int err;
9108
4ee3e063
BL		 9109 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9110
58050fce 9111 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 9112
7f6cf311
JB		 9113 if (!msg)
9114 return;
9115
9116 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9117 if (!hdr) {
9118 nlmsg_free(msg);
9119 return;
9120 }
9121
9360ffd1
DM		 9122 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9123 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9124 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9125 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9126 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9127 goto nla_put_failure;
7f6cf311
JB		 9128
9129 err = genlmsg_end(msg, hdr);
9130 if (err < 0) {
9131 nlmsg_free(msg);
9132 return;
9133 }
9134
9135 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9136 nl80211_mlme_mcgrp.id, gfp);
9137 return;
9138
9139 nla_put_failure:
9140 genlmsg_cancel(msg, hdr);
9141 nlmsg_free(msg);
9142}
9143EXPORT_SYMBOL(cfg80211_probe_status);
9144
5e760230
JB		 9145void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9146 const u8 *frame, size_t len,
37c73b5f 9147 int freq, int sig_dbm)
5e760230
JB		 9148{
9149 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9150 struct sk_buff *msg;
9151 void *hdr;
37c73b5f 9152 struct cfg80211_beacon_registration *reg;
5e760230 9153
4ee3e063
BL		 9154 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9155
37c73b5f
BG		 9156 spin_lock_bh(&rdev->beacon_registrations_lock);
9157 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9158 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9159 if (!msg) {
9160 spin_unlock_bh(&rdev->beacon_registrations_lock);
9161 return;
9162 }
5e760230 9163
37c73b5f
BG		 9164 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9165 if (!hdr)
9166 goto nla_put_failure;
5e760230 9167
37c73b5f
BG		 9168 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9169 (freq &&
9170 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9171 (sig_dbm &&
9172 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9173 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9174 goto nla_put_failure;
5e760230 9175
37c73b5f 9176 genlmsg_end(msg, hdr);
5e760230 9177
37c73b5f
BG		 9178 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9179 }
9180 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9181 return;
9182
9183 nla_put_failure:
37c73b5f
BG		 9184 spin_unlock_bh(&rdev->beacon_registrations_lock);
9185 if (hdr)
9186 genlmsg_cancel(msg, hdr);
5e760230
JB		 9187 nlmsg_free(msg);
9188}
9189EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9190
3475b094
JM		 9191void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9192 enum nl80211_tdls_operation oper,
9193 u16 reason_code, gfp_t gfp)
9194{
9195 struct wireless_dev *wdev = dev->ieee80211_ptr;
9196 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9197 struct sk_buff *msg;
9198 void *hdr;
9199 int err;
9200
9201 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9202 reason_code);
9203
9204 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9205 if (!msg)
9206 return;
9207
9208 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9209 if (!hdr) {
9210 nlmsg_free(msg);
9211 return;
9212 }
9213
9214 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9215 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9216 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9217 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9218 (reason_code > 0 &&
9219 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9220 goto nla_put_failure;
9221
9222 err = genlmsg_end(msg, hdr);
9223 if (err < 0) {
9224 nlmsg_free(msg);
9225 return;
9226 }
9227
9228 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9229 nl80211_mlme_mcgrp.id, gfp);
9230 return;
9231
9232 nla_put_failure:
9233 genlmsg_cancel(msg, hdr);
9234 nlmsg_free(msg);
9235}
9236EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9237
026331c4
JM		 9238static int nl80211_netlink_notify(struct notifier_block * nb,
9239 unsigned long state,
9240 void *_notify)
9241{
9242 struct netlink_notify *notify = _notify;
9243 struct cfg80211_registered_device *rdev;
9244 struct wireless_dev *wdev;
37c73b5f 9245 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 9246
9247 if (state != NETLINK_URELEASE)
9248 return NOTIFY_DONE;
9249
9250 rcu_read_lock();
9251
5e760230 9252 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 9253 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 9254 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 9255
9256 spin_lock_bh(&rdev->beacon_registrations_lock);
9257 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9258 list) {
9259 if (reg->nlportid == notify->portid) {
9260 list_del(&reg->list);
9261 kfree(reg);
9262 break;
9263 }
9264 }
9265 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 9266 }
026331c4
JM		 9267
9268 rcu_read_unlock();
9269
9270 return NOTIFY_DONE;
9271}
9272
9273static struct notifier_block nl80211_netlink_notifier = {
9274 .notifier_call = nl80211_netlink_notify,
9275};
9276
55682965
JB		 9277/* initialisation/exit functions */
9278
9279int nl80211_init(void)
9280{
0d63cbb5 9281 int err;
55682965 9282
0d63cbb5
MM		 9283 err = genl_register_family_with_ops(&nl80211_fam,
9284 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 9285 if (err)
9286 return err;
9287
55682965
JB		 9288 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9289 if (err)
9290 goto err_out;
9291
2a519311
JB		 9292 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9293 if (err)
9294 goto err_out;
9295
73d54c9e
LR		 9296 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9297 if (err)
9298 goto err_out;
9299
6039f6d2
JM		 9300 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9301 if (err)
9302 goto err_out;
9303
aff89a9b
JB		 9304#ifdef CONFIG_NL80211_TESTMODE
9305 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9306 if (err)
9307 goto err_out;
9308#endif
9309
026331c4
JM		 9310 err = netlink_register_notifier(&nl80211_netlink_notifier);
9311 if (err)
9312 goto err_out;
9313
55682965
JB		 9314 return 0;
9315 err_out:
9316 genl_unregister_family(&nl80211_fam);
9317 return err;
9318}
9319
9320void nl80211_exit(void)
9321{
026331c4 9322 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 9323 genl_unregister_family(&nl80211_fam);
9324}
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