projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
nl80211: allow user-space to set address for P2P_DEVICE
[GitHub/mt8127/android_kernel_alcatel_ttab.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
1c18f145
AS		 2082 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2083 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2084 ETH_ALEN);
2085 if (!is_valid_ether_addr(params.macaddr))
2086 return -EADDRNOTAVAIL;
2087 }
2088
9bc383de 2089 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2090 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2091 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2092 if (err)
4c476991 2093 return err;
9bc383de 2094 }
8b787643 2095
1c90f9d4
JB		 2096 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2097 if (!msg)
2098 return -ENOMEM;
2099
66f7ac50
MW		 2100 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2101 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2102 &flags);
e35e4d28
HG		 2103 wdev = rdev_add_virtual_intf(rdev,
2104 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2105 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2106 if (IS_ERR(wdev)) {
2107 nlmsg_free(msg);
84efbb84 2108 return PTR_ERR(wdev);
1c90f9d4 2109 }
2ec600d6 2110
98104fde
JB		 2111 switch (type) {
2112 case NL80211_IFTYPE_MESH_POINT:
2113 if (!info->attrs[NL80211_ATTR_MESH_ID])
2114 break;
29cbe68c
JB		 2115 wdev_lock(wdev);
2116 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2117 IEEE80211_MAX_MESH_ID_LEN);
2118 wdev->mesh_id_up_len =
2119 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2120 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2121 wdev->mesh_id_up_len);
2122 wdev_unlock(wdev);
98104fde
JB		 2123 break;
2124 case NL80211_IFTYPE_P2P_DEVICE:
2125 /*
2126 * P2P Device doesn't have a netdev, so doesn't go
2127 * through the netdev notifier and must be added here
2128 */
2129 mutex_init(&wdev->mtx);
2130 INIT_LIST_HEAD(&wdev->event_list);
2131 spin_lock_init(&wdev->event_lock);
2132 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2133 spin_lock_init(&wdev->mgmt_registrations_lock);
2134
2135 mutex_lock(&rdev->devlist_mtx);
2136 wdev->identifier = ++rdev->wdev_id;
2137 list_add_rcu(&wdev->list, &rdev->wdev_list);
2138 rdev->devlist_generation++;
2139 mutex_unlock(&rdev->devlist_mtx);
2140 break;
2141 default:
2142 break;
29cbe68c
JB		 2143 }
2144
15e47304 2145 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2146 rdev, wdev) < 0) {
2147 nlmsg_free(msg);
2148 return -ENOBUFS;
2149 }
2150
2151 return genlmsg_reply(msg, info);
55682965
JB		 2152}
2153
2154static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2155{
4c476991 2156 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2157 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2158
4c476991
JB		 2159 if (!rdev->ops->del_virtual_intf)
2160 return -EOPNOTSUPP;
55682965 2161
84efbb84
JB		 2162 /*
2163 * If we remove a wireless device without a netdev then clear
2164 * user_ptr[1] so that nl80211_post_doit won't dereference it
2165 * to check if it needs to do dev_put(). Otherwise it crashes
2166 * since the wdev has been freed, unlike with a netdev where
2167 * we need the dev_put() for the netdev to really be freed.
2168 */
2169 if (!wdev->netdev)
2170 info->user_ptr[1] = NULL;
2171
e35e4d28 2172 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2173}
2174
1d9d9213
SW		 2175static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2176{
2177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2178 struct net_device *dev = info->user_ptr[1];
2179 u16 noack_map;
2180
2181 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2182 return -EINVAL;
2183
2184 if (!rdev->ops->set_noack_map)
2185 return -EOPNOTSUPP;
2186
2187 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2188
e35e4d28 2189 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2190}
2191
41ade00f
JB		 2192struct get_key_cookie {
2193 struct sk_buff *msg;
2194 int error;
b9454e83 2195 int idx;
41ade00f
JB		 2196};
2197
2198static void get_key_callback(void *c, struct key_params *params)
2199{
b9454e83 2200 struct nlattr *key;
41ade00f
JB		 2201 struct get_key_cookie *cookie = c;
2202
9360ffd1
DM		 2203 if ((params->key &&
2204 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2205 params->key_len, params->key)) ||
2206 (params->seq &&
2207 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2208 params->seq_len, params->seq)) ||
2209 (params->cipher &&
2210 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2211 params->cipher)))
2212 goto nla_put_failure;
41ade00f 2213
b9454e83
JB		 2214 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2215 if (!key)
2216 goto nla_put_failure;
2217
9360ffd1
DM		 2218 if ((params->key &&
2219 nla_put(cookie->msg, NL80211_KEY_DATA,
2220 params->key_len, params->key)) ||
2221 (params->seq &&
2222 nla_put(cookie->msg, NL80211_KEY_SEQ,
2223 params->seq_len, params->seq)) ||
2224 (params->cipher &&
2225 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2226 params->cipher)))
2227 goto nla_put_failure;
b9454e83 2228
9360ffd1
DM		 2229 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2230 goto nla_put_failure;
b9454e83
JB		 2231
2232 nla_nest_end(cookie->msg, key);
2233
41ade00f
JB		 2234 return;
2235 nla_put_failure:
2236 cookie->error = 1;
2237}
2238
2239static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2240{
4c476991 2241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2242 int err;
4c476991 2243 struct net_device *dev = info->user_ptr[1];
41ade00f 2244 u8 key_idx = 0;
e31b8213
JB		 2245 const u8 *mac_addr = NULL;
2246 bool pairwise;
41ade00f
JB		 2247 struct get_key_cookie cookie = {
2248 .error = 0,
2249 };
2250 void *hdr;
2251 struct sk_buff *msg;
2252
2253 if (info->attrs[NL80211_ATTR_KEY_IDX])
2254 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2255
3cfcf6ac 2256 if (key_idx > 5)
41ade00f
JB		 2257 return -EINVAL;
2258
2259 if (info->attrs[NL80211_ATTR_MAC])
2260 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2261
e31b8213
JB		 2262 pairwise = !!mac_addr;
2263 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2264 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2265 if (kt >= NUM_NL80211_KEYTYPES)
2266 return -EINVAL;
2267 if (kt != NL80211_KEYTYPE_GROUP &&
2268 kt != NL80211_KEYTYPE_PAIRWISE)
2269 return -EINVAL;
2270 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2271 }
2272
4c476991
JB		 2273 if (!rdev->ops->get_key)
2274 return -EOPNOTSUPP;
41ade00f 2275
fd2120ca 2276 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2277 if (!msg)
2278 return -ENOMEM;
41ade00f 2279
15e47304 2280 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2281 NL80211_CMD_NEW_KEY);
4c476991
JB		 2282 if (IS_ERR(hdr))
2283 return PTR_ERR(hdr);
41ade00f
JB		 2284
2285 cookie.msg = msg;
b9454e83 2286 cookie.idx = key_idx;
41ade00f 2287
9360ffd1
DM		 2288 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2289 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2290 goto nla_put_failure;
2291 if (mac_addr &&
2292 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2293 goto nla_put_failure;
41ade00f 2294
e31b8213
JB		 2295 if (pairwise && mac_addr &&
2296 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2297 return -ENOENT;
2298
e35e4d28
HG		 2299 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2300 get_key_callback);
41ade00f
JB		 2301
2302 if (err)
6c95e2a2 2303 goto free_msg;
41ade00f
JB		 2304
2305 if (cookie.error)
2306 goto nla_put_failure;
2307
2308 genlmsg_end(msg, hdr);
4c476991 2309 return genlmsg_reply(msg, info);
41ade00f
JB		 2310
2311 nla_put_failure:
2312 err = -ENOBUFS;
6c95e2a2 2313 free_msg:
41ade00f 2314 nlmsg_free(msg);
41ade00f
JB		 2315 return err;
2316}
2317
2318static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2319{
4c476991 2320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2321 struct key_parse key;
41ade00f 2322 int err;
4c476991 2323 struct net_device *dev = info->user_ptr[1];
41ade00f 2324
b9454e83
JB		 2325 err = nl80211_parse_key(info, &key);
2326 if (err)
2327 return err;
41ade00f 2328
b9454e83 2329 if (key.idx < 0)
41ade00f
JB		 2330 return -EINVAL;
2331
b9454e83
JB		 2332 /* only support setting default key */
2333 if (!key.def && !key.defmgmt)
41ade00f
JB		 2334 return -EINVAL;
2335
dbd2fd65 2336 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2337
dbd2fd65
JB		 2338 if (key.def) {
2339 if (!rdev->ops->set_default_key) {
2340 err = -EOPNOTSUPP;
2341 goto out;
2342 }
41ade00f 2343
dbd2fd65
JB		 2344 err = nl80211_key_allowed(dev->ieee80211_ptr);
2345 if (err)
2346 goto out;
2347
e35e4d28 2348 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2349 key.def_uni, key.def_multi);
2350
2351 if (err)
2352 goto out;
fffd0934 2353
3d23e349 2354#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2355 dev->ieee80211_ptr->wext.default_key = key.idx;
2356#endif
2357 } else {
2358 if (key.def_uni || !key.def_multi) {
2359 err = -EINVAL;
2360 goto out;
2361 }
2362
2363 if (!rdev->ops->set_default_mgmt_key) {
2364 err = -EOPNOTSUPP;
2365 goto out;
2366 }
2367
2368 err = nl80211_key_allowed(dev->ieee80211_ptr);
2369 if (err)
2370 goto out;
2371
e35e4d28 2372 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2373 if (err)
2374 goto out;
2375
2376#ifdef CONFIG_CFG80211_WEXT
2377 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2378#endif
dbd2fd65
JB		 2379 }
2380
2381 out:
fffd0934 2382 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2383
41ade00f
JB		 2384 return err;
2385}
2386
2387static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2388{
4c476991 2389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2390 int err;
4c476991 2391 struct net_device *dev = info->user_ptr[1];
b9454e83 2392 struct key_parse key;
e31b8213 2393 const u8 *mac_addr = NULL;
41ade00f 2394
b9454e83
JB		 2395 err = nl80211_parse_key(info, &key);
2396 if (err)
2397 return err;
41ade00f 2398
b9454e83 2399 if (!key.p.key)
41ade00f
JB		 2400 return -EINVAL;
2401
41ade00f
JB		 2402 if (info->attrs[NL80211_ATTR_MAC])
2403 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2404
e31b8213
JB		 2405 if (key.type == -1) {
2406 if (mac_addr)
2407 key.type = NL80211_KEYTYPE_PAIRWISE;
2408 else
2409 key.type = NL80211_KEYTYPE_GROUP;
2410 }
2411
2412 /* for now */
2413 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2414 key.type != NL80211_KEYTYPE_GROUP)
2415 return -EINVAL;
2416
4c476991
JB		 2417 if (!rdev->ops->add_key)
2418 return -EOPNOTSUPP;
25e47c18 2419
e31b8213
JB		 2420 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2421 key.type == NL80211_KEYTYPE_PAIRWISE,
2422 mac_addr))
4c476991 2423 return -EINVAL;
41ade00f 2424
fffd0934
JB		 2425 wdev_lock(dev->ieee80211_ptr);
2426 err = nl80211_key_allowed(dev->ieee80211_ptr);
2427 if (!err)
e35e4d28
HG		 2428 err = rdev_add_key(rdev, dev, key.idx,
2429 key.type == NL80211_KEYTYPE_PAIRWISE,
2430 mac_addr, &key.p);
fffd0934 2431 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2432
41ade00f
JB		 2433 return err;
2434}
2435
2436static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2437{
4c476991 2438 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2439 int err;
4c476991 2440 struct net_device *dev = info->user_ptr[1];
41ade00f 2441 u8 *mac_addr = NULL;
b9454e83 2442 struct key_parse key;
41ade00f 2443
b9454e83
JB		 2444 err = nl80211_parse_key(info, &key);
2445 if (err)
2446 return err;
41ade00f
JB		 2447
2448 if (info->attrs[NL80211_ATTR_MAC])
2449 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2450
e31b8213
JB		 2451 if (key.type == -1) {
2452 if (mac_addr)
2453 key.type = NL80211_KEYTYPE_PAIRWISE;
2454 else
2455 key.type = NL80211_KEYTYPE_GROUP;
2456 }
2457
2458 /* for now */
2459 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2460 key.type != NL80211_KEYTYPE_GROUP)
2461 return -EINVAL;
2462
4c476991
JB		 2463 if (!rdev->ops->del_key)
2464 return -EOPNOTSUPP;
41ade00f 2465
fffd0934
JB		 2466 wdev_lock(dev->ieee80211_ptr);
2467 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2468
2469 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2470 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2471 err = -ENOENT;
2472
fffd0934 2473 if (!err)
e35e4d28
HG		 2474 err = rdev_del_key(rdev, dev, key.idx,
2475 key.type == NL80211_KEYTYPE_PAIRWISE,
2476 mac_addr);
41ade00f 2477
3d23e349 2478#ifdef CONFIG_CFG80211_WEXT
08645126 2479 if (!err) {
b9454e83 2480 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2481 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2482 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2483 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2484 }
2485#endif
fffd0934 2486 wdev_unlock(dev->ieee80211_ptr);
08645126 2487
41ade00f
JB		 2488 return err;
2489}
2490
8860020e
JB		 2491static int nl80211_parse_beacon(struct genl_info *info,
2492 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2493{
8860020e 2494 bool haveinfo = false;
ed1b6cc7 2495
9946ecfb
JM		 2496 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2497 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2498 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2499 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2500 return -EINVAL;
2501
8860020e 2502 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2503
ed1b6cc7 2504 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2505 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2506 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2507 if (!bcn->head_len)
2508 return -EINVAL;
2509 haveinfo = true;
ed1b6cc7
JB		 2510 }
2511
2512 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2513 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2514 bcn->tail_len =
ed1b6cc7 2515 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2516 haveinfo = true;
ed1b6cc7
JB		 2517 }
2518
4c476991
JB		 2519 if (!haveinfo)
2520 return -EINVAL;
3b85875a 2521
9946ecfb 2522 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2523 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2524 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2525 }
2526
2527 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2528 bcn->proberesp_ies =
9946ecfb 2529 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2530 bcn->proberesp_ies_len =
9946ecfb
JM		 2531 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2532 }
2533
2534 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2535 bcn->assocresp_ies =
9946ecfb 2536 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2537 bcn->assocresp_ies_len =
9946ecfb
JM		 2538 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2539 }
2540
00f740e1 2541 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2542 bcn->probe_resp =
00f740e1 2543 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2544 bcn->probe_resp_len =
00f740e1
AN		 2545 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2546 }
2547
8860020e
JB		 2548 return 0;
2549}
2550
46c1dd0c
FF		 2551static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2552 struct cfg80211_ap_settings *params)
2553{
2554 struct wireless_dev *wdev;
2555 bool ret = false;
2556
2557 mutex_lock(&rdev->devlist_mtx);
2558
89a54e48 2559 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2560 if (wdev->iftype != NL80211_IFTYPE_AP &&
2561 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2562 continue;
2563
683b6d3b 2564 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2565 continue;
2566
683b6d3b 2567 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2568 ret = true;
2569 break;
2570 }
2571
2572 mutex_unlock(&rdev->devlist_mtx);
2573
2574 return ret;
2575}
2576
e39e5b5e
JM		 2577static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2578 enum nl80211_auth_type auth_type,
2579 enum nl80211_commands cmd)
2580{
2581 if (auth_type > NL80211_AUTHTYPE_MAX)
2582 return false;
2583
2584 switch (cmd) {
2585 case NL80211_CMD_AUTHENTICATE:
2586 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2587 auth_type == NL80211_AUTHTYPE_SAE)
2588 return false;
2589 return true;
2590 case NL80211_CMD_CONNECT:
2591 case NL80211_CMD_START_AP:
2592 /* SAE not supported yet */
2593 if (auth_type == NL80211_AUTHTYPE_SAE)
2594 return false;
2595 return true;
2596 default:
2597 return false;
2598 }
2599}
2600
8860020e
JB		 2601static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2602{
2603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2604 struct net_device *dev = info->user_ptr[1];
2605 struct wireless_dev *wdev = dev->ieee80211_ptr;
2606 struct cfg80211_ap_settings params;
2607 int err;
2608
2609 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2610 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2611 return -EOPNOTSUPP;
2612
2613 if (!rdev->ops->start_ap)
2614 return -EOPNOTSUPP;
2615
2616 if (wdev->beacon_interval)
2617 return -EALREADY;
2618
2619 memset(&params, 0, sizeof(params));
2620
2621 /* these are required for START_AP */
2622 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2623 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2624 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2625 return -EINVAL;
2626
2627 err = nl80211_parse_beacon(info, &params.beacon);
2628 if (err)
2629 return err;
2630
2631 params.beacon_interval =
2632 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2633 params.dtim_period =
2634 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2635
2636 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2637 if (err)
2638 return err;
2639
2640 /*
2641 * In theory, some of these attributes should be required here
2642 * but since they were not used when the command was originally
2643 * added, keep them optional for old user space programs to let
2644 * them continue to work with drivers that do not need the
2645 * additional information -- drivers must check!
2646 */
2647 if (info->attrs[NL80211_ATTR_SSID]) {
2648 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2649 params.ssid_len =
2650 nla_len(info->attrs[NL80211_ATTR_SSID]);
2651 if (params.ssid_len == 0 ||
2652 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2653 return -EINVAL;
2654 }
2655
2656 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2657 params.hidden_ssid = nla_get_u32(
2658 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2659 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2660 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2661 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2662 return -EINVAL;
2663 }
2664
2665 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2666
2667 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2668 params.auth_type = nla_get_u32(
2669 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 2670 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2671 NL80211_CMD_START_AP))
8860020e
JB		 2672 return -EINVAL;
2673 } else
2674 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2675
2676 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2677 NL80211_MAX_NR_CIPHER_SUITES);
2678 if (err)
2679 return err;
2680
1b658f11
VT		 2681 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2682 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2683 return -EOPNOTSUPP;
2684 params.inactivity_timeout = nla_get_u16(
2685 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2686 }
2687
53cabad7
JB		 2688 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2689 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2690 return -EINVAL;
2691 params.p2p_ctwindow =
2692 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2693 if (params.p2p_ctwindow > 127)
2694 return -EINVAL;
2695 if (params.p2p_ctwindow != 0 &&
2696 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2697 return -EINVAL;
2698 }
2699
2700 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2701 u8 tmp;
2702
2703 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2704 return -EINVAL;
2705 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2706 if (tmp > 1)
2707 return -EINVAL;
2708 params.p2p_opp_ps = tmp;
2709 if (params.p2p_opp_ps != 0 &&
2710 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2711 return -EINVAL;
2712 }
2713
aa430da4 2714 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 2715 err = nl80211_parse_chandef(rdev, info, &params.chandef);
2716 if (err)
2717 return err;
2718 } else if (wdev->preset_chandef.chan) {
2719 params.chandef = wdev->preset_chandef;
46c1dd0c 2720 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2721 return -EINVAL;
2722
683b6d3b 2723 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 2724 return -EINVAL;
2725
e4e32459 2726 mutex_lock(&rdev->devlist_mtx);
683b6d3b 2727 err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan,
e4e32459
MK		 2728 CHAN_MODE_SHARED);
2729 mutex_unlock(&rdev->devlist_mtx);
2730
2731 if (err)
2732 return err;
2733
e35e4d28 2734 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 2735 if (!err) {
683b6d3b 2736 wdev->preset_chandef = params.chandef;
8860020e 2737 wdev->beacon_interval = params.beacon_interval;
683b6d3b 2738 wdev->channel = params.chandef.chan;
06e191e2
AQ		 2739 wdev->ssid_len = params.ssid_len;
2740 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 2741 }
56d1893d 2742 return err;
ed1b6cc7
JB		 2743}
2744
8860020e
JB		 2745static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2746{
2747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2748 struct net_device *dev = info->user_ptr[1];
2749 struct wireless_dev *wdev = dev->ieee80211_ptr;
2750 struct cfg80211_beacon_data params;
2751 int err;
2752
2753 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2754 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2755 return -EOPNOTSUPP;
2756
2757 if (!rdev->ops->change_beacon)
2758 return -EOPNOTSUPP;
2759
2760 if (!wdev->beacon_interval)
2761 return -EINVAL;
2762
2763 err = nl80211_parse_beacon(info, &params);
2764 if (err)
2765 return err;
2766
e35e4d28 2767 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 2768}
2769
2770static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2771{
4c476991
JB		 2772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2773 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2774
60771780 2775 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2776}
2777
5727ef1b
JB		 2778static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2779 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2780 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2781 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2782 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2783 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2784 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2785};
2786
eccb8e8f 2787static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2788 enum nl80211_iftype iftype,
eccb8e8f 2789 struct station_parameters *params)
5727ef1b
JB		 2790{
2791 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2792 struct nlattr *nla;
5727ef1b
JB		 2793 int flag;
2794
eccb8e8f
JB		 2795 /*
2796 * Try parsing the new attribute first so userspace
2797 * can specify both for older kernels.
2798 */
2799 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2800 if (nla) {
2801 struct nl80211_sta_flag_update *sta_flags;
2802
2803 sta_flags = nla_data(nla);
2804 params->sta_flags_mask = sta_flags->mask;
2805 params->sta_flags_set = sta_flags->set;
2806 if ((params->sta_flags_mask |
2807 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2808 return -EINVAL;
2809 return 0;
2810 }
2811
2812 /* if present, parse the old attribute */
5727ef1b 2813
eccb8e8f 2814 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2815 if (!nla)
2816 return 0;
2817
2818 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2819 nla, sta_flags_policy))
2820 return -EINVAL;
2821
bdd3ae3d
JB		 2822 /*
2823 * Only allow certain flags for interface types so that
2824 * other attributes are silently ignored. Remember that
2825 * this is backward compatibility code with old userspace
2826 * and shouldn't be hit in other cases anyway.
2827 */
2828 switch (iftype) {
2829 case NL80211_IFTYPE_AP:
2830 case NL80211_IFTYPE_AP_VLAN:
2831 case NL80211_IFTYPE_P2P_GO:
2832 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2833 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2834 BIT(NL80211_STA_FLAG_WME) |
2835 BIT(NL80211_STA_FLAG_MFP);
2836 break;
2837 case NL80211_IFTYPE_P2P_CLIENT:
2838 case NL80211_IFTYPE_STATION:
2839 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2840 BIT(NL80211_STA_FLAG_TDLS_PEER);
2841 break;
2842 case NL80211_IFTYPE_MESH_POINT:
2843 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2844 BIT(NL80211_STA_FLAG_MFP) |
2845 BIT(NL80211_STA_FLAG_AUTHORIZED);
2846 default:
2847 return -EINVAL;
2848 }
5727ef1b 2849
3383b5a6
JB		 2850 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2851 if (flags[flag]) {
eccb8e8f 2852 params->sta_flags_set |= (1<<flag);
5727ef1b 2853
3383b5a6
JB		 2854 /* no longer support new API additions in old API */
2855 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2856 return -EINVAL;
2857 }
2858 }
2859
5727ef1b
JB		 2860 return 0;
2861}
2862
c8dcfd8a
FF		 2863static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2864 int attr)
2865{
2866 struct nlattr *rate;
8eb41c8d
VK		 2867 u32 bitrate;
2868 u16 bitrate_compat;
c8dcfd8a
FF		 2869
2870 rate = nla_nest_start(msg, attr);
2871 if (!rate)
db9c64cf 2872 return false;
c8dcfd8a
FF		 2873
2874 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2875 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 2876 /* report 16-bit bitrate only if we can */
2877 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 2878 if (bitrate > 0 &&
2879 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
2880 return false;
2881 if (bitrate_compat > 0 &&
2882 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
2883 return false;
2884
2885 if (info->flags & RATE_INFO_FLAGS_MCS) {
2886 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
2887 return false;
2888 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2889 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2890 return false;
2891 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2892 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2893 return false;
2894 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
2895 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
2896 return false;
2897 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
2898 return false;
2899 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2900 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2901 return false;
2902 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
2903 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
2904 return false;
2905 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
2906 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
2907 return false;
2908 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
2909 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
2910 return false;
2911 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2912 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2913 return false;
2914 }
c8dcfd8a
FF		 2915
2916 nla_nest_end(msg, rate);
2917 return true;
c8dcfd8a
FF		 2918}
2919
15e47304 2920static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 2921 int flags,
2922 struct cfg80211_registered_device *rdev,
2923 struct net_device *dev,
98b62183 2924 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2925{
2926 void *hdr;
f4263c98 2927 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 2928
15e47304 2929 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 2930 if (!hdr)
2931 return -1;
2932
9360ffd1
DM		 2933 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2934 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2935 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2936 goto nla_put_failure;
f5ea9120 2937
2ec600d6
LCC		 2938 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2939 if (!sinfoattr)
fd5b74dc 2940 goto nla_put_failure;
9360ffd1
DM		 2941 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2942 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2943 sinfo->connected_time))
2944 goto nla_put_failure;
2945 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2946 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2947 sinfo->inactive_time))
2948 goto nla_put_failure;
2949 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2950 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2951 sinfo->rx_bytes))
2952 goto nla_put_failure;
2953 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2954 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2955 sinfo->tx_bytes))
2956 goto nla_put_failure;
2957 if ((sinfo->filled & STATION_INFO_LLID) &&
2958 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2959 goto nla_put_failure;
2960 if ((sinfo->filled & STATION_INFO_PLID) &&
2961 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2962 goto nla_put_failure;
2963 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2964 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2965 sinfo->plink_state))
2966 goto nla_put_failure;
66266b3a
JL		 2967 switch (rdev->wiphy.signal_type) {
2968 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2969 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2970 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2971 sinfo->signal))
2972 goto nla_put_failure;
2973 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2974 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2975 sinfo->signal_avg))
2976 goto nla_put_failure;
66266b3a
JL		 2977 break;
2978 default:
2979 break;
2980 }
420e7fab 2981 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2982 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2983 NL80211_STA_INFO_TX_BITRATE))
2984 goto nla_put_failure;
2985 }
2986 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2987 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2988 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2989 goto nla_put_failure;
420e7fab 2990 }
9360ffd1
DM		 2991 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2992 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2993 sinfo->rx_packets))
2994 goto nla_put_failure;
2995 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2996 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2997 sinfo->tx_packets))
2998 goto nla_put_failure;
2999 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3000 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3001 sinfo->tx_retries))
3002 goto nla_put_failure;
3003 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3004 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3005 sinfo->tx_failed))
3006 goto nla_put_failure;
3007 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3008 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3009 sinfo->beacon_loss_count))
3010 goto nla_put_failure;
3b1c5a53
MP		 3011 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3012 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3013 sinfo->local_pm))
3014 goto nla_put_failure;
3015 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3016 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3017 sinfo->peer_pm))
3018 goto nla_put_failure;
3019 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3020 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3021 sinfo->nonpeer_pm))
3022 goto nla_put_failure;
f4263c98
PS		 3023 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3024 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3025 if (!bss_param)
3026 goto nla_put_failure;
3027
9360ffd1
DM		 3028 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3029 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3030 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3031 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3032 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3033 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3034 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3035 sinfo->bss_param.dtim_period) ||
3036 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3037 sinfo->bss_param.beacon_interval))
3038 goto nla_put_failure;
f4263c98
PS		 3039
3040 nla_nest_end(msg, bss_param);
3041 }
9360ffd1
DM		 3042 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3043 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3044 sizeof(struct nl80211_sta_flag_update),
3045 &sinfo->sta_flags))
3046 goto nla_put_failure;
7eab0f64
JL		 3047 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3048 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3049 sinfo->t_offset))
3050 goto nla_put_failure;
2ec600d6 3051 nla_nest_end(msg, sinfoattr);
fd5b74dc 3052
9360ffd1
DM		 3053 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3054 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3055 sinfo->assoc_req_ies))
3056 goto nla_put_failure;
50d3dfb7 3057
fd5b74dc
JB		 3058 return genlmsg_end(msg, hdr);
3059
3060 nla_put_failure:
bc3ed28c
TG		 3061 genlmsg_cancel(msg, hdr);
3062 return -EMSGSIZE;
fd5b74dc
JB		 3063}
3064
2ec600d6 3065static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3066 struct netlink_callback *cb)
2ec600d6 3067{
2ec600d6
LCC		 3068 struct station_info sinfo;
3069 struct cfg80211_registered_device *dev;
bba95fef 3070 struct net_device *netdev;
2ec600d6 3071 u8 mac_addr[ETH_ALEN];
bba95fef 3072 int sta_idx = cb->args[1];
2ec600d6 3073 int err;
2ec600d6 3074
67748893
JB		 3075 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3076 if (err)
3077 return err;
bba95fef
JB		 3078
3079 if (!dev->ops->dump_station) {
eec60b03 3080 err = -EOPNOTSUPP;
bba95fef
JB		 3081 goto out_err;
3082 }
3083
bba95fef 3084 while (1) {
f612cedf 3085 memset(&sinfo, 0, sizeof(sinfo));
e35e4d28
HG		 3086 err = rdev_dump_station(dev, netdev, sta_idx,
3087 mac_addr, &sinfo);
bba95fef
JB		 3088 if (err == -ENOENT)
3089 break;
3090 if (err)
3b85875a 3091 goto out_err;
bba95fef
JB		 3092
3093 if (nl80211_send_station(skb,
15e47304 3094 NETLINK_CB(cb->skb).portid,
bba95fef 3095 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 3096 dev, netdev, mac_addr,
bba95fef
JB		 3097 &sinfo) < 0)
3098 goto out;
3099
3100 sta_idx++;
3101 }
3102
3103
3104 out:
3105 cb->args[1] = sta_idx;
3106 err = skb->len;
bba95fef 3107 out_err:
67748893 3108 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 3109
3110 return err;
2ec600d6 3111}
fd5b74dc 3112
5727ef1b
JB		 3113static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3114{
4c476991
JB		 3115 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3116 struct net_device *dev = info->user_ptr[1];
2ec600d6 3117 struct station_info sinfo;
fd5b74dc
JB		 3118 struct sk_buff *msg;
3119 u8 *mac_addr = NULL;
4c476991 3120 int err;
fd5b74dc 3121
2ec600d6 3122 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3123
3124 if (!info->attrs[NL80211_ATTR_MAC])
3125 return -EINVAL;
3126
3127 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3128
4c476991
JB		 3129 if (!rdev->ops->get_station)
3130 return -EOPNOTSUPP;
3b85875a 3131
e35e4d28 3132 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3133 if (err)
4c476991 3134 return err;
2ec600d6 3135
fd2120ca 3136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3137 if (!msg)
4c476991 3138 return -ENOMEM;
fd5b74dc 3139
15e47304 3140 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3141 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3142 nlmsg_free(msg);
3143 return -ENOBUFS;
3144 }
3b85875a 3145
4c476991 3146 return genlmsg_reply(msg, info);
5727ef1b
JB		 3147}
3148
3149/*
c258d2de 3150 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3151 */
80b99899
JB		 3152static struct net_device *get_vlan(struct genl_info *info,
3153 struct cfg80211_registered_device *rdev)
5727ef1b 3154{
463d0183 3155 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3156 struct net_device *v;
3157 int ret;
3158
3159 if (!vlanattr)
3160 return NULL;
3161
3162 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3163 if (!v)
3164 return ERR_PTR(-ENODEV);
3165
3166 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3167 ret = -EINVAL;
3168 goto error;
5727ef1b 3169 }
80b99899
JB		 3170
3171 if (!netif_running(v)) {
3172 ret = -ENETDOWN;
3173 goto error;
3174 }
3175
3176 return v;
3177 error:
3178 dev_put(v);
3179 return ERR_PTR(ret);
5727ef1b
JB		 3180}
3181
3182static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3183{
4c476991 3184 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3185 int err;
4c476991 3186 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3187 struct station_parameters params;
3188 u8 *mac_addr = NULL;
3189
3190 memset(&params, 0, sizeof(params));
3191
3192 params.listen_interval = -1;
57cf8043 3193 params.plink_state = -1;
5727ef1b
JB		 3194
3195 if (info->attrs[NL80211_ATTR_STA_AID])
3196 return -EINVAL;
3197
3198 if (!info->attrs[NL80211_ATTR_MAC])
3199 return -EINVAL;
3200
3201 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3202
3203 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3204 params.supported_rates =
3205 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3206 params.supported_rates_len =
3207 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3208 }
3209
ba23d206
JB		 3210 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL] ||
3211 info->attrs[NL80211_ATTR_HT_CAPABILITY])
3212 return -EINVAL;
36aedc90 3213
bdd90d5e
JB		 3214 if (!rdev->ops->change_station)
3215 return -EOPNOTSUPP;
3216
bdd3ae3d 3217 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3218 return -EINVAL;
3219
2ec600d6
LCC		 3220 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3221 params.plink_action =
3222 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3223
9c3990aa
JC		 3224 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3225 params.plink_state =
3226 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3227
3b1c5a53
MP		 3228 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3229 enum nl80211_mesh_power_mode pm = nla_get_u32(
3230 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3231
3232 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3233 pm > NL80211_MESH_POWER_MAX)
3234 return -EINVAL;
3235
3236 params.local_pm = pm;
3237 }
3238
a97f4424
JB		 3239 switch (dev->ieee80211_ptr->iftype) {
3240 case NL80211_IFTYPE_AP:
3241 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3242 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3243 /* disallow mesh-specific things */
3244 if (params.plink_action)
bdd90d5e 3245 return -EINVAL;
3b1c5a53
MP		 3246 if (params.local_pm)
3247 return -EINVAL;
bdd90d5e
JB		 3248
3249 /* TDLS can't be set, ... */
3250 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3251 return -EINVAL;
3252 /*
3253 * ... but don't bother the driver with it. This works around
3254 * a hostapd/wpa_supplicant issue -- it always includes the
3255 * TLDS_PEER flag in the mask even for AP mode.
3256 */
3257 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3258
3259 /* accept only the listed bits */
3260 if (params.sta_flags_mask &
3261 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
d582cffb
JB		 3262 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3263 BIT(NL80211_STA_FLAG_ASSOCIATED) |
bdd90d5e
JB		 3264 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3265 BIT(NL80211_STA_FLAG_WME) |
3266 BIT(NL80211_STA_FLAG_MFP)))
3267 return -EINVAL;
3268
d582cffb
JB		 3269 /* but authenticated/associated only if driver handles it */
3270 if (!(rdev->wiphy.features &
3271 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3272 params.sta_flags_mask &
3273 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3274 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3275 return -EINVAL;
3276
ba23d206
JB		 3277 /* reject other things that can't change */
3278 if (params.supported_rates)
3279 return -EINVAL;
3280
bdd90d5e
JB		 3281 /* must be last in here for error handling */
3282 params.vlan = get_vlan(info, rdev);
3283 if (IS_ERR(params.vlan))
3284 return PTR_ERR(params.vlan);
a97f4424 3285 break;
074ac8df 3286 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3287 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3288 /*
3289 * Don't allow userspace to change the TDLS_PEER flag,
3290 * but silently ignore attempts to change it since we
3291 * don't have state here to verify that it doesn't try
3292 * to change the flag.
3293 */
3294 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 3295 /* fall through */
3296 case NL80211_IFTYPE_ADHOC:
3297 /* disallow things sta doesn't support */
3298 if (params.plink_action)
3299 return -EINVAL;
3b1c5a53
MP		 3300 if (params.local_pm)
3301 return -EINVAL;
bdd90d5e
JB		 3302 /* reject any changes other than AUTHORIZED */
3303 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3304 return -EINVAL;
a97f4424
JB		 3305 break;
3306 case NL80211_IFTYPE_MESH_POINT:
3307 /* disallow things mesh doesn't support */
3308 if (params.vlan)
bdd90d5e 3309 return -EINVAL;
ba23d206 3310 if (params.supported_rates)
bdd90d5e
JB		 3311 return -EINVAL;
3312 /*
3313 * No special handling for TDLS here -- the userspace
3314 * mesh code doesn't have this bug.
3315 */
b39c48fa
JC		 3316 if (params.sta_flags_mask &
3317 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3318 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3319 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3320 return -EINVAL;
a97f4424
JB		 3321 break;
3322 default:
bdd90d5e 3323 return -EOPNOTSUPP;
034d655e
JB		 3324 }
3325
bdd90d5e 3326 /* be aware of params.vlan when changing code here */
5727ef1b 3327
e35e4d28 3328 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3329
5727ef1b
JB		 3330 if (params.vlan)
3331 dev_put(params.vlan);
3b85875a 3332
5727ef1b
JB		 3333 return err;
3334}
3335
c75786c9
EP		 3336static struct nla_policy
3337nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3338 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3339 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3340};
3341
5727ef1b
JB		 3342static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3343{
4c476991 3344 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3345 int err;
4c476991 3346 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3347 struct station_parameters params;
3348 u8 *mac_addr = NULL;
3349
3350 memset(&params, 0, sizeof(params));
3351
3352 if (!info->attrs[NL80211_ATTR_MAC])
3353 return -EINVAL;
3354
5727ef1b
JB		 3355 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3356 return -EINVAL;
3357
3358 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3359 return -EINVAL;
3360
0e956c13
TLSC		 3361 if (!info->attrs[NL80211_ATTR_STA_AID])
3362 return -EINVAL;
3363
5727ef1b
JB		 3364 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3365 params.supported_rates =
3366 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3367 params.supported_rates_len =
3368 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3369 params.listen_interval =
3370 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3371
0e956c13
TLSC		 3372 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3373 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3374 return -EINVAL;
51b50fbe 3375
36aedc90
JM		 3376 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3377 params.ht_capa =
3378 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3379
f461be3e
MP		 3380 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3381 params.vht_capa =
3382 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3383
96b78dff
JC		 3384 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3385 params.plink_action =
3386 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3387
bdd90d5e
JB		 3388 if (!rdev->ops->add_station)
3389 return -EOPNOTSUPP;
3390
bdd3ae3d 3391 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3392 return -EINVAL;
3393
bdd90d5e
JB		 3394 switch (dev->ieee80211_ptr->iftype) {
3395 case NL80211_IFTYPE_AP:
3396 case NL80211_IFTYPE_AP_VLAN:
3397 case NL80211_IFTYPE_P2P_GO:
3398 /* parse WME attributes if sta is WME capable */
3399 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3400 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3401 info->attrs[NL80211_ATTR_STA_WME]) {
3402 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3403 struct nlattr *nla;
3404
3405 nla = info->attrs[NL80211_ATTR_STA_WME];
3406 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3407 nl80211_sta_wme_policy);
3408 if (err)
3409 return err;
3410
3411 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3412 params.uapsd_queues =
3413 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3414 if (params.uapsd_queues &
3415 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3416 return -EINVAL;
c75786c9 3417
bdd90d5e
JB		 3418 if (tb[NL80211_STA_WME_MAX_SP])
3419 params.max_sp =
3420 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3421
bdd90d5e
JB		 3422 if (params.max_sp &
3423 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3424 return -EINVAL;
4319e193 3425
bdd90d5e
JB		 3426 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3427 }
3428 /* TDLS peers cannot be added */
3429 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3430 return -EINVAL;
bdd90d5e
JB		 3431 /* but don't bother the driver with it */
3432 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3433
d582cffb
JB		 3434 /* allow authenticated/associated only if driver handles it */
3435 if (!(rdev->wiphy.features &
3436 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3437 params.sta_flags_mask &
3438 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3439 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3440 return -EINVAL;
3441
bdd90d5e
JB		 3442 /* must be last in here for error handling */
3443 params.vlan = get_vlan(info, rdev);
3444 if (IS_ERR(params.vlan))
3445 return PTR_ERR(params.vlan);
3446 break;
3447 case NL80211_IFTYPE_MESH_POINT:
d582cffb
JB		 3448 /* associated is disallowed */
3449 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3450 return -EINVAL;
bdd90d5e
JB		 3451 /* TDLS peers cannot be added */
3452 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3453 return -EINVAL;
3454 break;
3455 case NL80211_IFTYPE_STATION:
d582cffb
JB		 3456 /* associated is disallowed */
3457 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3458 return -EINVAL;
bdd90d5e
JB		 3459 /* Only TDLS peers can be added */
3460 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3461 return -EINVAL;
3462 /* Can only add if TDLS ... */
3463 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3464 return -EOPNOTSUPP;
3465 /* ... with external setup is supported */
3466 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3467 return -EOPNOTSUPP;
3468 break;
3469 default:
3470 return -EOPNOTSUPP;
c75786c9
EP		 3471 }
3472
bdd90d5e 3473 /* be aware of params.vlan when changing code here */
5727ef1b 3474
e35e4d28 3475 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 3476
5727ef1b
JB		 3477 if (params.vlan)
3478 dev_put(params.vlan);
5727ef1b
JB		 3479 return err;
3480}
3481
3482static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3483{
4c476991
JB		 3484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3485 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3486 u8 *mac_addr = NULL;
3487
3488 if (info->attrs[NL80211_ATTR_MAC])
3489 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3490
e80cf853 3491 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3492 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3493 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3494 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3495 return -EINVAL;
5727ef1b 3496
4c476991
JB		 3497 if (!rdev->ops->del_station)
3498 return -EOPNOTSUPP;
3b85875a 3499
e35e4d28 3500 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 3501}
3502
15e47304 3503static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3504 int flags, struct net_device *dev,
3505 u8 *dst, u8 *next_hop,
3506 struct mpath_info *pinfo)
3507{
3508 void *hdr;
3509 struct nlattr *pinfoattr;
3510
15e47304 3511 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3512 if (!hdr)
3513 return -1;
3514
9360ffd1
DM		 3515 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3516 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3517 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3518 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3519 goto nla_put_failure;
f5ea9120 3520
2ec600d6
LCC		 3521 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3522 if (!pinfoattr)
3523 goto nla_put_failure;
9360ffd1
DM		 3524 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3525 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3526 pinfo->frame_qlen))
3527 goto nla_put_failure;
3528 if (((pinfo->filled & MPATH_INFO_SN) &&
3529 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3530 ((pinfo->filled & MPATH_INFO_METRIC) &&
3531 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3532 pinfo->metric)) ||
3533 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3534 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3535 pinfo->exptime)) ||
3536 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3537 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3538 pinfo->flags)) ||
3539 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3540 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3541 pinfo->discovery_timeout)) ||
3542 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3543 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3544 pinfo->discovery_retries)))
3545 goto nla_put_failure;
2ec600d6
LCC		 3546
3547 nla_nest_end(msg, pinfoattr);
3548
3549 return genlmsg_end(msg, hdr);
3550
3551 nla_put_failure:
bc3ed28c
TG		 3552 genlmsg_cancel(msg, hdr);
3553 return -EMSGSIZE;
2ec600d6
LCC		 3554}
3555
3556static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3557 struct netlink_callback *cb)
2ec600d6 3558{
2ec600d6
LCC		 3559 struct mpath_info pinfo;
3560 struct cfg80211_registered_device *dev;
bba95fef 3561 struct net_device *netdev;
2ec600d6
LCC		 3562 u8 dst[ETH_ALEN];
3563 u8 next_hop[ETH_ALEN];
bba95fef 3564 int path_idx = cb->args[1];
2ec600d6 3565 int err;
2ec600d6 3566
67748893
JB		 3567 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3568 if (err)
3569 return err;
bba95fef
JB		 3570
3571 if (!dev->ops->dump_mpath) {
eec60b03 3572 err = -EOPNOTSUPP;
bba95fef
JB		 3573 goto out_err;
3574 }
3575
eec60b03
JM		 3576 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3577 err = -EOPNOTSUPP;
0448b5fc 3578 goto out_err;
eec60b03
JM		 3579 }
3580
bba95fef 3581 while (1) {
e35e4d28
HG		 3582 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3583 &pinfo);
bba95fef 3584 if (err == -ENOENT)
2ec600d6 3585 break;
bba95fef 3586 if (err)
3b85875a 3587 goto out_err;
2ec600d6 3588
15e47304 3589 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3590 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3591 netdev, dst, next_hop,
3592 &pinfo) < 0)
3593 goto out;
2ec600d6 3594
bba95fef 3595 path_idx++;
2ec600d6 3596 }
2ec600d6 3597
2ec600d6 3598
bba95fef
JB		 3599 out:
3600 cb->args[1] = path_idx;
3601 err = skb->len;
bba95fef 3602 out_err:
67748893 3603 nl80211_finish_netdev_dump(dev);
bba95fef 3604 return err;
2ec600d6
LCC		 3605}
3606
3607static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3608{
4c476991 3609 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3610 int err;
4c476991 3611 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3612 struct mpath_info pinfo;
3613 struct sk_buff *msg;
3614 u8 *dst = NULL;
3615 u8 next_hop[ETH_ALEN];
3616
3617 memset(&pinfo, 0, sizeof(pinfo));
3618
3619 if (!info->attrs[NL80211_ATTR_MAC])
3620 return -EINVAL;
3621
3622 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3623
4c476991
JB		 3624 if (!rdev->ops->get_mpath)
3625 return -EOPNOTSUPP;
2ec600d6 3626
4c476991
JB		 3627 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3628 return -EOPNOTSUPP;
eec60b03 3629
e35e4d28 3630 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 3631 if (err)
4c476991 3632 return err;
2ec600d6 3633
fd2120ca 3634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3635 if (!msg)
4c476991 3636 return -ENOMEM;
2ec600d6 3637
15e47304 3638 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3639 dev, dst, next_hop, &pinfo) < 0) {
3640 nlmsg_free(msg);
3641 return -ENOBUFS;
3642 }
3b85875a 3643
4c476991 3644 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3645}
3646
3647static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3648{
4c476991
JB		 3649 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3650 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3651 u8 *dst = NULL;
3652 u8 *next_hop = NULL;
3653
3654 if (!info->attrs[NL80211_ATTR_MAC])
3655 return -EINVAL;
3656
3657 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3658 return -EINVAL;
3659
3660 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3661 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3662
4c476991
JB		 3663 if (!rdev->ops->change_mpath)
3664 return -EOPNOTSUPP;
35a8efe1 3665
4c476991
JB		 3666 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3667 return -EOPNOTSUPP;
2ec600d6 3668
e35e4d28 3669 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 3670}
4c476991 3671
2ec600d6
LCC		 3672static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3673{
4c476991
JB		 3674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3675 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3676 u8 *dst = NULL;
3677 u8 *next_hop = NULL;
3678
3679 if (!info->attrs[NL80211_ATTR_MAC])
3680 return -EINVAL;
3681
3682 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3683 return -EINVAL;
3684
3685 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3686 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3687
4c476991
JB		 3688 if (!rdev->ops->add_mpath)
3689 return -EOPNOTSUPP;
35a8efe1 3690
4c476991
JB		 3691 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3692 return -EOPNOTSUPP;
2ec600d6 3693
e35e4d28 3694 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 3695}
3696
3697static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3698{
4c476991
JB		 3699 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3700 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3701 u8 *dst = NULL;
3702
3703 if (info->attrs[NL80211_ATTR_MAC])
3704 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3705
4c476991
JB		 3706 if (!rdev->ops->del_mpath)
3707 return -EOPNOTSUPP;
3b85875a 3708
e35e4d28 3709 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 3710}
3711
9f1ba906
JM		 3712static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3713{
4c476991
JB		 3714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3715 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3716 struct bss_parameters params;
3717
3718 memset(&params, 0, sizeof(params));
3719 /* default to not changing parameters */
3720 params.use_cts_prot = -1;
3721 params.use_short_preamble = -1;
3722 params.use_short_slot_time = -1;
fd8aaaf3 3723 params.ap_isolate = -1;
50b12f59 3724 params.ht_opmode = -1;
53cabad7
JB		 3725 params.p2p_ctwindow = -1;
3726 params.p2p_opp_ps = -1;
9f1ba906
JM		 3727
3728 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3729 params.use_cts_prot =
3730 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3731 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3732 params.use_short_preamble =
3733 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3734 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3735 params.use_short_slot_time =
3736 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3737 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3738 params.basic_rates =
3739 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3740 params.basic_rates_len =
3741 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3742 }
fd8aaaf3
FF		 3743 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3744 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3745 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3746 params.ht_opmode =
3747 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3748
53cabad7
JB		 3749 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3750 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3751 return -EINVAL;
3752 params.p2p_ctwindow =
3753 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3754 if (params.p2p_ctwindow < 0)
3755 return -EINVAL;
3756 if (params.p2p_ctwindow != 0 &&
3757 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3758 return -EINVAL;
3759 }
3760
3761 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3762 u8 tmp;
3763
3764 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3765 return -EINVAL;
3766 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3767 if (tmp > 1)
3768 return -EINVAL;
3769 params.p2p_opp_ps = tmp;
3770 if (params.p2p_opp_ps &&
3771 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3772 return -EINVAL;
3773 }
3774
4c476991
JB		 3775 if (!rdev->ops->change_bss)
3776 return -EOPNOTSUPP;
9f1ba906 3777
074ac8df 3778 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3779 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3780 return -EOPNOTSUPP;
3b85875a 3781
e35e4d28 3782 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 3783}
3784
b54452b0 3785static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3786 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3787 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3788 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3789 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3790 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3791 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3792};
3793
3794static int parse_reg_rule(struct nlattr *tb[],
3795 struct ieee80211_reg_rule *reg_rule)
3796{
3797 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3798 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3799
3800 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3801 return -EINVAL;
3802 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3803 return -EINVAL;
3804 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3805 return -EINVAL;
3806 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3807 return -EINVAL;
3808 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3809 return -EINVAL;
3810
3811 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3812
3813 freq_range->start_freq_khz =
3814 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3815 freq_range->end_freq_khz =
3816 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3817 freq_range->max_bandwidth_khz =
3818 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3819
3820 power_rule->max_eirp =
3821 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3822
3823 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3824 power_rule->max_antenna_gain =
3825 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3826
3827 return 0;
3828}
3829
3830static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3831{
3832 int r;
3833 char *data = NULL;
57b5ce07 3834 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 3835
80778f18
LR		 3836 /*
3837 * You should only get this when cfg80211 hasn't yet initialized
3838 * completely when built-in to the kernel right between the time
3839 * window between nl80211_init() and regulatory_init(), if that is
3840 * even possible.
3841 */
458f4f9e 3842 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 3843 return -EINPROGRESS;
80778f18 3844
fe33eb39
LR		 3845 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3846 return -EINVAL;
b2e1b302
LR		 3847
3848 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3849
57b5ce07
LR		 3850 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3851 user_reg_hint_type =
3852 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3853 else
3854 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3855
3856 switch (user_reg_hint_type) {
3857 case NL80211_USER_REG_HINT_USER:
3858 case NL80211_USER_REG_HINT_CELL_BASE:
3859 break;
3860 default:
3861 return -EINVAL;
3862 }
3863
3864 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 3865
b2e1b302
LR		 3866 return r;
3867}
3868
24bdd9f4 3869static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3870 struct genl_info *info)
93da9cc1 3871{
4c476991 3872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3873 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3874 struct wireless_dev *wdev = dev->ieee80211_ptr;
3875 struct mesh_config cur_params;
3876 int err = 0;
93da9cc1 3877 void *hdr;
3878 struct nlattr *pinfoattr;
3879 struct sk_buff *msg;
3880
29cbe68c
JB		 3881 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3882 return -EOPNOTSUPP;
3883
24bdd9f4 3884 if (!rdev->ops->get_mesh_config)
4c476991 3885 return -EOPNOTSUPP;
f3f92586 3886
29cbe68c
JB		 3887 wdev_lock(wdev);
3888 /* If not connected, get default parameters */
3889 if (!wdev->mesh_id_len)
3890 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3891 else
e35e4d28 3892 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 3893 wdev_unlock(wdev);
3894
93da9cc1 3895 if (err)
4c476991 3896 return err;
93da9cc1 3897
3898 /* Draw up a netlink message to send back */
fd2120ca 3899 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3900 if (!msg)
3901 return -ENOMEM;
15e47304 3902 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 3903 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3904 if (!hdr)
efe1cf0c 3905 goto out;
24bdd9f4 3906 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3907 if (!pinfoattr)
3908 goto nla_put_failure;
9360ffd1
DM		 3909 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3910 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3911 cur_params.dot11MeshRetryTimeout) ||
3912 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3913 cur_params.dot11MeshConfirmTimeout) ||
3914 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3915 cur_params.dot11MeshHoldingTimeout) ||
3916 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3917 cur_params.dot11MeshMaxPeerLinks) ||
3918 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3919 cur_params.dot11MeshMaxRetries) ||
3920 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3921 cur_params.dot11MeshTTL) ||
3922 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3923 cur_params.element_ttl) ||
3924 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3925 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3926 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3927 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3928 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3929 cur_params.dot11MeshHWMPmaxPREQretries) ||
3930 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3931 cur_params.path_refresh_time) ||
3932 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3933 cur_params.min_discovery_timeout) ||
3934 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3935 cur_params.dot11MeshHWMPactivePathTimeout) ||
3936 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3937 cur_params.dot11MeshHWMPpreqMinInterval) ||
3938 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3939 cur_params.dot11MeshHWMPperrMinInterval) ||
3940 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3941 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3942 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3943 cur_params.dot11MeshHWMPRootMode) ||
3944 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3945 cur_params.dot11MeshHWMPRannInterval) ||
3946 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3947 cur_params.dot11MeshGateAnnouncementProtocol) ||
3948 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3949 cur_params.dot11MeshForwarding) ||
3950 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3951 cur_params.rssi_threshold) ||
3952 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3953 cur_params.ht_opmode) ||
3954 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3955 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3956 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3957 cur_params.dot11MeshHWMProotInterval) ||
3958 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 3959 cur_params.dot11MeshHWMPconfirmationInterval) ||
3960 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
3961 cur_params.power_mode) ||
3962 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
3963 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 3964 goto nla_put_failure;
93da9cc1 3965 nla_nest_end(msg, pinfoattr);
3966 genlmsg_end(msg, hdr);
4c476991 3967 return genlmsg_reply(msg, info);
93da9cc1 3968
3b85875a 3969 nla_put_failure:
93da9cc1 3970 genlmsg_cancel(msg, hdr);
efe1cf0c 3971 out:
d080e275 3972 nlmsg_free(msg);
4c476991 3973 return -ENOBUFS;
93da9cc1 3974}
3975
b54452b0 3976static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3977 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3978 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3979 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3980 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3981 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3982 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3983 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3984 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3985 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3986 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3987 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3988 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3989 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3990 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3991 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3992 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3993 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3994 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3995 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3996 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3997 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3998 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3999 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4000 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4001 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4002 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4003 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4004};
4005
c80d545d
JC		 4006static const struct nla_policy
4007 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4008 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4009 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4010 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4011 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 4012 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4013 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4014 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4015};
4016
24bdd9f4 4017static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4018 struct mesh_config *cfg,
4019 u32 *mask_out)
93da9cc1 4020{
93da9cc1 4021 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4022 u32 mask = 0;
93da9cc1 4023
ea54fba2
MP		 4024#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4025do { \
4026 if (tb[attr]) { \
4027 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4028 return -EINVAL; \
4029 cfg->param = fn(tb[attr]); \
4030 mask |= (1 << (attr - 1)); \
4031 } \
4032} while (0)
bd90fdcc
JB		 4033
4034
24bdd9f4 4035 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4036 return -EINVAL;
4037 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4038 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4039 nl80211_meshconf_params_policy))
93da9cc1 4040 return -EINVAL;
4041
93da9cc1 4042 /* This makes sure that there aren't more than 32 mesh config
4043 * parameters (otherwise our bitfield scheme would not work.) */
4044 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4045
4046 /* Fill in the params struct */
ea54fba2 4047 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4048 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4049 nla_get_u16);
ea54fba2 4050 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4051 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4052 nla_get_u16);
ea54fba2 4053 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4054 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4055 nla_get_u16);
ea54fba2 4056 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4057 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4058 nla_get_u16);
ea54fba2 4059 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4060 mask, NL80211_MESHCONF_MAX_RETRIES,
4061 nla_get_u8);
ea54fba2 4062 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4063 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4064 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4065 mask, NL80211_MESHCONF_ELEMENT_TTL,
4066 nla_get_u8);
ea54fba2 4067 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4068 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4069 nla_get_u8);
ea54fba2
MP		 4070 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4071 1, 255, mask,
a4f606ea
CYY		 4072 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4073 nla_get_u32);
ea54fba2 4074 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4075 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4076 nla_get_u8);
ea54fba2 4077 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4078 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4079 nla_get_u32);
ea54fba2 4080 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4081 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4082 nla_get_u16);
ea54fba2
MP		 4083 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4084 1, 65535, mask,
a4f606ea
CYY		 4085 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4086 nla_get_u32);
93da9cc1 4087 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4088 1, 65535, mask,
4089 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4090 nla_get_u16);
dca7e943 4091 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4092 1, 65535, mask,
4093 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4094 nla_get_u16);
93da9cc1 4095 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4096 dot11MeshHWMPnetDiameterTraversalTime,
4097 1, 65535, mask,
a4f606ea
CYY		 4098 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4099 nla_get_u16);
ea54fba2
MP		 4100 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4101 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4102 nla_get_u8);
4103 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4104 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4105 nla_get_u16);
63c5723b 4106 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4107 dot11MeshGateAnnouncementProtocol, 0, 1,
4108 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4109 nla_get_u8);
ea54fba2 4110 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4111 mask, NL80211_MESHCONF_FORWARDING,
4112 nla_get_u8);
ea54fba2 4113 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4114 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4115 nla_get_u32);
ea54fba2 4116 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4117 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4118 nla_get_u16);
4119 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4120 1, 65535, mask,
ac1073a6
CYY		 4121 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4122 nla_get_u32);
ea54fba2 4123 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4124 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4125 nla_get_u16);
4126 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4127 dot11MeshHWMPconfirmationInterval,
4128 1, 65535, mask,
728b19e5 4129 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4130 nla_get_u16);
3b1c5a53
MP		 4131 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4132 NL80211_MESH_POWER_ACTIVE,
4133 NL80211_MESH_POWER_MAX,
4134 mask, NL80211_MESHCONF_POWER_MODE,
4135 nla_get_u32);
4136 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4137 0, 65535, mask,
4138 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4139 if (mask_out)
4140 *mask_out = mask;
c80d545d 4141
bd90fdcc
JB		 4142 return 0;
4143
4144#undef FILL_IN_MESH_PARAM_IF_SET
4145}
4146
c80d545d
JC		 4147static int nl80211_parse_mesh_setup(struct genl_info *info,
4148 struct mesh_setup *setup)
4149{
4150 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4151
4152 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4153 return -EINVAL;
4154 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4155 info->attrs[NL80211_ATTR_MESH_SETUP],
4156 nl80211_mesh_setup_params_policy))
4157 return -EINVAL;
4158
d299a1f2
JC		 4159 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4160 setup->sync_method =
4161 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4162 IEEE80211_SYNC_METHOD_VENDOR :
4163 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4164
c80d545d
JC		 4165 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4166 setup->path_sel_proto =
4167 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4168 IEEE80211_PATH_PROTOCOL_VENDOR :
4169 IEEE80211_PATH_PROTOCOL_HWMP;
4170
4171 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4172 setup->path_metric =
4173 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4174 IEEE80211_PATH_METRIC_VENDOR :
4175 IEEE80211_PATH_METRIC_AIRTIME;
4176
581a8b0f
JC		 4177
4178 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4179 struct nlattr *ieattr =
581a8b0f 4180 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4181 if (!is_valid_ie_attr(ieattr))
4182 return -EINVAL;
581a8b0f
JC		 4183 setup->ie = nla_data(ieattr);
4184 setup->ie_len = nla_len(ieattr);
c80d545d 4185 }
b130e5ce
JC		 4186 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4187 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4188
4189 return 0;
4190}
4191
24bdd9f4 4192static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4193 struct genl_info *info)
bd90fdcc
JB		 4194{
4195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4196 struct net_device *dev = info->user_ptr[1];
29cbe68c 4197 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4198 struct mesh_config cfg;
4199 u32 mask;
4200 int err;
4201
29cbe68c
JB		 4202 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4203 return -EOPNOTSUPP;
4204
24bdd9f4 4205 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4206 return -EOPNOTSUPP;
4207
24bdd9f4 4208 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4209 if (err)
4210 return err;
4211
29cbe68c
JB		 4212 wdev_lock(wdev);
4213 if (!wdev->mesh_id_len)
4214 err = -ENOLINK;
4215
4216 if (!err)
e35e4d28 4217 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4218
4219 wdev_unlock(wdev);
4220
4221 return err;
93da9cc1 4222}
4223
f130347c
LR		 4224static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4225{
458f4f9e 4226 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4227 struct sk_buff *msg;
4228 void *hdr = NULL;
4229 struct nlattr *nl_reg_rules;
4230 unsigned int i;
4231 int err = -EINVAL;
4232
a1794390 4233 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4234
4235 if (!cfg80211_regdomain)
4236 goto out;
4237
fd2120ca 4238 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4239 if (!msg) {
4240 err = -ENOBUFS;
4241 goto out;
4242 }
4243
15e47304 4244 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4245 NL80211_CMD_GET_REG);
4246 if (!hdr)
efe1cf0c 4247 goto put_failure;
f130347c 4248
57b5ce07
LR		 4249 if (reg_last_request_cell_base() &&
4250 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4251 NL80211_USER_REG_HINT_CELL_BASE))
4252 goto nla_put_failure;
4253
458f4f9e
JB		 4254 rcu_read_lock();
4255 regdom = rcu_dereference(cfg80211_regdomain);
4256
4257 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4258 (regdom->dfs_region &&
4259 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4260 goto nla_put_failure_rcu;
4261
f130347c
LR		 4262 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4263 if (!nl_reg_rules)
458f4f9e 4264 goto nla_put_failure_rcu;
f130347c 4265
458f4f9e 4266 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4267 struct nlattr *nl_reg_rule;
4268 const struct ieee80211_reg_rule *reg_rule;
4269 const struct ieee80211_freq_range *freq_range;
4270 const struct ieee80211_power_rule *power_rule;
4271
458f4f9e 4272 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4273 freq_range = &reg_rule->freq_range;
4274 power_rule = &reg_rule->power_rule;
4275
4276 nl_reg_rule = nla_nest_start(msg, i);
4277 if (!nl_reg_rule)
458f4f9e 4278 goto nla_put_failure_rcu;
f130347c 4279
9360ffd1
DM		 4280 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4281 reg_rule->flags) ||
4282 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4283 freq_range->start_freq_khz) ||
4284 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4285 freq_range->end_freq_khz) ||
4286 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4287 freq_range->max_bandwidth_khz) ||
4288 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4289 power_rule->max_antenna_gain) ||
4290 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4291 power_rule->max_eirp))
458f4f9e 4292 goto nla_put_failure_rcu;
f130347c
LR		 4293
4294 nla_nest_end(msg, nl_reg_rule);
4295 }
458f4f9e 4296 rcu_read_unlock();
f130347c
LR		 4297
4298 nla_nest_end(msg, nl_reg_rules);
4299
4300 genlmsg_end(msg, hdr);
134e6375 4301 err = genlmsg_reply(msg, info);
f130347c
LR		 4302 goto out;
4303
458f4f9e
JB		 4304nla_put_failure_rcu:
4305 rcu_read_unlock();
f130347c
LR		 4306nla_put_failure:
4307 genlmsg_cancel(msg, hdr);
efe1cf0c 4308put_failure:
d080e275 4309 nlmsg_free(msg);
f130347c
LR		 4310 err = -EMSGSIZE;
4311out:
a1794390 4312 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4313 return err;
4314}
4315
b2e1b302
LR		 4316static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4317{
4318 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4319 struct nlattr *nl_reg_rule;
4320 char *alpha2 = NULL;
4321 int rem_reg_rules = 0, r = 0;
4322 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4323 u8 dfs_region = 0;
b2e1b302
LR		 4324 struct ieee80211_regdomain *rd = NULL;
4325
4326 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4327 return -EINVAL;
4328
4329 if (!info->attrs[NL80211_ATTR_REG_RULES])
4330 return -EINVAL;
4331
4332 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4333
8b60b078
LR		 4334 if (info->attrs[NL80211_ATTR_DFS_REGION])
4335 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4336
b2e1b302 4337 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4338 rem_reg_rules) {
b2e1b302
LR		 4339 num_rules++;
4340 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4341 return -EINVAL;
b2e1b302
LR		 4342 }
4343
b2e1b302 4344 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4345 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4346
4347 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4348 if (!rd)
4349 return -ENOMEM;
b2e1b302
LR		 4350
4351 rd->n_reg_rules = num_rules;
4352 rd->alpha2[0] = alpha2[0];
4353 rd->alpha2[1] = alpha2[1];
4354
8b60b078
LR		 4355 /*
4356 * Disable DFS master mode if the DFS region was
4357 * not supported or known on this kernel.
4358 */
4359 if (reg_supported_dfs_region(dfs_region))
4360 rd->dfs_region = dfs_region;
4361
b2e1b302 4362 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4363 rem_reg_rules) {
b2e1b302 4364 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4365 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4366 reg_rule_policy);
b2e1b302
LR		 4367 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4368 if (r)
4369 goto bad_reg;
4370
4371 rule_idx++;
4372
d0e18f83
LR		 4373 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4374 r = -EINVAL;
b2e1b302 4375 goto bad_reg;
d0e18f83 4376 }
b2e1b302
LR		 4377 }
4378
6913b49a
JB		 4379 mutex_lock(&cfg80211_mutex);
4380
b2e1b302 4381 r = set_regdom(rd);
6913b49a 4382 /* set_regdom took ownership */
1a919318 4383 rd = NULL;
6913b49a 4384 mutex_unlock(&cfg80211_mutex);
b2e1b302 4385
d2372b31 4386 bad_reg:
b2e1b302 4387 kfree(rd);
d0e18f83 4388 return r;
b2e1b302
LR		 4389}
4390
83f5e2cf
JB		 4391static int validate_scan_freqs(struct nlattr *freqs)
4392{
4393 struct nlattr *attr1, *attr2;
4394 int n_channels = 0, tmp1, tmp2;
4395
4396 nla_for_each_nested(attr1, freqs, tmp1) {
4397 n_channels++;
4398 /*
4399 * Some hardware has a limited channel list for
4400 * scanning, and it is pretty much nonsensical
4401 * to scan for a channel twice, so disallow that
4402 * and don't require drivers to check that the
4403 * channel list they get isn't longer than what
4404 * they can scan, as long as they can scan all
4405 * the channels they registered at once.
4406 */
4407 nla_for_each_nested(attr2, freqs, tmp2)
4408 if (attr1 != attr2 &&
4409 nla_get_u32(attr1) == nla_get_u32(attr2))
4410 return 0;
4411 }
4412
4413 return n_channels;
4414}
4415
2a519311
JB		 4416static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4417{
4c476991 4418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4419 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4420 struct cfg80211_scan_request *request;
2a519311
JB		 4421 struct nlattr *attr;
4422 struct wiphy *wiphy;
83f5e2cf 4423 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4424 size_t ie_len;
2a519311 4425
f4a11bb0
JB		 4426 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4427 return -EINVAL;
4428
79c97e97 4429 wiphy = &rdev->wiphy;
2a519311 4430
4c476991
JB		 4431 if (!rdev->ops->scan)
4432 return -EOPNOTSUPP;
2a519311 4433
4c476991
JB		 4434 if (rdev->scan_req)
4435 return -EBUSY;
2a519311
JB		 4436
4437 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4438 n_channels = validate_scan_freqs(
4439 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4440 if (!n_channels)
4441 return -EINVAL;
2a519311 4442 } else {
34850ab2 4443 enum ieee80211_band band;
83f5e2cf
JB		 4444 n_channels = 0;
4445
2a519311
JB		 4446 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4447 if (wiphy->bands[band])
4448 n_channels += wiphy->bands[band]->n_channels;
4449 }
4450
4451 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4452 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4453 n_ssids++;
4454
4c476991
JB		 4455 if (n_ssids > wiphy->max_scan_ssids)
4456 return -EINVAL;
2a519311 4457
70692ad2
JM		 4458 if (info->attrs[NL80211_ATTR_IE])
4459 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4460 else
4461 ie_len = 0;
4462
4c476991
JB		 4463 if (ie_len > wiphy->max_scan_ie_len)
4464 return -EINVAL;
18a83659 4465
2a519311 4466 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4467 + sizeof(*request->ssids) * n_ssids
4468 + sizeof(*request->channels) * n_channels
70692ad2 4469 + ie_len, GFP_KERNEL);
4c476991
JB		 4470 if (!request)
4471 return -ENOMEM;
2a519311 4472
2a519311 4473 if (n_ssids)
5ba63533 4474 request->ssids = (void *)&request->channels[n_channels];
2a519311 4475 request->n_ssids = n_ssids;
70692ad2
JM		 4476 if (ie_len) {
4477 if (request->ssids)
4478 request->ie = (void *)(request->ssids + n_ssids);
4479 else
4480 request->ie = (void *)(request->channels + n_channels);
4481 }
2a519311 4482
584991dc 4483 i = 0;
2a519311
JB		 4484 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4485 /* user specified, bail out if channel not found */
2a519311 4486 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4487 struct ieee80211_channel *chan;
4488
4489 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4490
4491 if (!chan) {
2a519311
JB		 4492 err = -EINVAL;
4493 goto out_free;
4494 }
584991dc
JB		 4495
4496 /* ignore disabled channels */
4497 if (chan->flags & IEEE80211_CHAN_DISABLED)
4498 continue;
4499
4500 request->channels[i] = chan;
2a519311
JB		 4501 i++;
4502 }
4503 } else {
34850ab2
JB		 4504 enum ieee80211_band band;
4505
2a519311 4506 /* all channels */
2a519311
JB		 4507 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4508 int j;
4509 if (!wiphy->bands[band])
4510 continue;
4511 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4512 struct ieee80211_channel *chan;
4513
4514 chan = &wiphy->bands[band]->channels[j];
4515
4516 if (chan->flags & IEEE80211_CHAN_DISABLED)
4517 continue;
4518
4519 request->channels[i] = chan;
2a519311
JB		 4520 i++;
4521 }
4522 }
4523 }
4524
584991dc
JB		 4525 if (!i) {
4526 err = -EINVAL;
4527 goto out_free;
4528 }
4529
4530 request->n_channels = i;
4531
2a519311
JB		 4532 i = 0;
4533 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4534 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4535 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4536 err = -EINVAL;
4537 goto out_free;
4538 }
57a27e1d 4539 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4540 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4541 i++;
4542 }
4543 }
4544
70692ad2
JM		 4545 if (info->attrs[NL80211_ATTR_IE]) {
4546 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4547 memcpy((void *)request->ie,
4548 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4549 request->ie_len);
4550 }
4551
34850ab2 4552 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4553 if (wiphy->bands[i])
4554 request->rates[i] =
4555 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4556
4557 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4558 nla_for_each_nested(attr,
4559 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4560 tmp) {
4561 enum ieee80211_band band = nla_type(attr);
4562
84404623 4563 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4564 err = -EINVAL;
4565 goto out_free;
4566 }
4567 err = ieee80211_get_ratemask(wiphy->bands[band],
4568 nla_data(attr),
4569 nla_len(attr),
4570 &request->rates[band]);
4571 if (err)
4572 goto out_free;
4573 }
4574 }
4575
46856bbf 4576 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4577 request->flags = nla_get_u32(
4578 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4579 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4580 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4581 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4582 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4583 err = -EOPNOTSUPP;
4584 goto out_free;
4585 }
4586 }
ed473771 4587
e9f935e3
RM		 4588 request->no_cck =
4589 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4590
fd014284 4591 request->wdev = wdev;
79c97e97 4592 request->wiphy = &rdev->wiphy;
15d6030b 4593 request->scan_start = jiffies;
2a519311 4594
79c97e97 4595 rdev->scan_req = request;
e35e4d28 4596 err = rdev_scan(rdev, request);
2a519311 4597
463d0183 4598 if (!err) {
fd014284
JB		 4599 nl80211_send_scan_start(rdev, wdev);
4600 if (wdev->netdev)
4601 dev_hold(wdev->netdev);
4c476991 4602 } else {
2a519311 4603 out_free:
79c97e97 4604 rdev->scan_req = NULL;
2a519311
JB		 4605 kfree(request);
4606 }
3b85875a 4607
2a519311
JB		 4608 return err;
4609}
4610
807f8a8c
LC		 4611static int nl80211_start_sched_scan(struct sk_buff *skb,
4612 struct genl_info *info)
4613{
4614 struct cfg80211_sched_scan_request *request;
4615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4616 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4617 struct nlattr *attr;
4618 struct wiphy *wiphy;
a1f1c21c 4619 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4620 u32 interval;
807f8a8c
LC		 4621 enum ieee80211_band band;
4622 size_t ie_len;
a1f1c21c 4623 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4624
4625 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4626 !rdev->ops->sched_scan_start)
4627 return -EOPNOTSUPP;
4628
4629 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4630 return -EINVAL;
4631
bbe6ad6d
LC		 4632 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4633 return -EINVAL;
4634
4635 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4636 if (interval == 0)
4637 return -EINVAL;
4638
807f8a8c
LC		 4639 wiphy = &rdev->wiphy;
4640
4641 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4642 n_channels = validate_scan_freqs(
4643 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4644 if (!n_channels)
4645 return -EINVAL;
4646 } else {
4647 n_channels = 0;
4648
4649 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4650 if (wiphy->bands[band])
4651 n_channels += wiphy->bands[band]->n_channels;
4652 }
4653
4654 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4655 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4656 tmp)
4657 n_ssids++;
4658
93b6aa69 4659 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4660 return -EINVAL;
4661
a1f1c21c
LC		 4662 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4663 nla_for_each_nested(attr,
4664 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4665 tmp)
4666 n_match_sets++;
4667
4668 if (n_match_sets > wiphy->max_match_sets)
4669 return -EINVAL;
4670
807f8a8c
LC		 4671 if (info->attrs[NL80211_ATTR_IE])
4672 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4673 else
4674 ie_len = 0;
4675
5a865bad 4676 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4677 return -EINVAL;
4678
c10841ca
LC		 4679 mutex_lock(&rdev->sched_scan_mtx);
4680
4681 if (rdev->sched_scan_req) {
4682 err = -EINPROGRESS;
4683 goto out;
4684 }
4685
807f8a8c 4686 request = kzalloc(sizeof(*request)
a2cd43c5 4687 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4688 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4689 + sizeof(*request->channels) * n_channels
807f8a8c 4690 + ie_len, GFP_KERNEL);
c10841ca
LC		 4691 if (!request) {
4692 err = -ENOMEM;
4693 goto out;
4694 }
807f8a8c
LC		 4695
4696 if (n_ssids)
4697 request->ssids = (void *)&request->channels[n_channels];
4698 request->n_ssids = n_ssids;
4699 if (ie_len) {
4700 if (request->ssids)
4701 request->ie = (void *)(request->ssids + n_ssids);
4702 else
4703 request->ie = (void *)(request->channels + n_channels);
4704 }
4705
a1f1c21c
LC		 4706 if (n_match_sets) {
4707 if (request->ie)
4708 request->match_sets = (void *)(request->ie + ie_len);
4709 else if (request->ssids)
4710 request->match_sets =
4711 (void *)(request->ssids + n_ssids);
4712 else
4713 request->match_sets =
4714 (void *)(request->channels + n_channels);
4715 }
4716 request->n_match_sets = n_match_sets;
4717
807f8a8c
LC		 4718 i = 0;
4719 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4720 /* user specified, bail out if channel not found */
4721 nla_for_each_nested(attr,
4722 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4723 tmp) {
4724 struct ieee80211_channel *chan;
4725
4726 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4727
4728 if (!chan) {
4729 err = -EINVAL;
4730 goto out_free;
4731 }
4732
4733 /* ignore disabled channels */
4734 if (chan->flags & IEEE80211_CHAN_DISABLED)
4735 continue;
4736
4737 request->channels[i] = chan;
4738 i++;
4739 }
4740 } else {
4741 /* all channels */
4742 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4743 int j;
4744 if (!wiphy->bands[band])
4745 continue;
4746 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4747 struct ieee80211_channel *chan;
4748
4749 chan = &wiphy->bands[band]->channels[j];
4750
4751 if (chan->flags & IEEE80211_CHAN_DISABLED)
4752 continue;
4753
4754 request->channels[i] = chan;
4755 i++;
4756 }
4757 }
4758 }
4759
4760 if (!i) {
4761 err = -EINVAL;
4762 goto out_free;
4763 }
4764
4765 request->n_channels = i;
4766
4767 i = 0;
4768 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4769 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4770 tmp) {
57a27e1d 4771 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4772 err = -EINVAL;
4773 goto out_free;
4774 }
57a27e1d 4775 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4776 memcpy(request->ssids[i].ssid, nla_data(attr),
4777 nla_len(attr));
807f8a8c
LC		 4778 i++;
4779 }
4780 }
4781
a1f1c21c
LC		 4782 i = 0;
4783 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4784 nla_for_each_nested(attr,
4785 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4786 tmp) {
88e920b4 4787 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4788
4789 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4790 nla_data(attr), nla_len(attr),
4791 nl80211_match_policy);
4a4ab0d7 4792 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4793 if (ssid) {
4794 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4795 err = -EINVAL;
4796 goto out_free;
4797 }
4798 memcpy(request->match_sets[i].ssid.ssid,
4799 nla_data(ssid), nla_len(ssid));
4800 request->match_sets[i].ssid.ssid_len =
4801 nla_len(ssid);
4802 }
88e920b4
TP		 4803 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4804 if (rssi)
4805 request->rssi_thold = nla_get_u32(rssi);
4806 else
4807 request->rssi_thold =
4808 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4809 i++;
4810 }
4811 }
4812
807f8a8c
LC		 4813 if (info->attrs[NL80211_ATTR_IE]) {
4814 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4815 memcpy((void *)request->ie,
4816 nla_data(info->attrs[NL80211_ATTR_IE]),
4817 request->ie_len);
4818 }
4819
46856bbf 4820 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4821 request->flags = nla_get_u32(
4822 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4823 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4824 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4825 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4826 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4827 err = -EOPNOTSUPP;
4828 goto out_free;
4829 }
4830 }
ed473771 4831
807f8a8c
LC		 4832 request->dev = dev;
4833 request->wiphy = &rdev->wiphy;
bbe6ad6d 4834 request->interval = interval;
15d6030b 4835 request->scan_start = jiffies;
807f8a8c 4836
e35e4d28 4837 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 4838 if (!err) {
4839 rdev->sched_scan_req = request;
4840 nl80211_send_sched_scan(rdev, dev,
4841 NL80211_CMD_START_SCHED_SCAN);
4842 goto out;
4843 }
4844
4845out_free:
4846 kfree(request);
4847out:
c10841ca 4848 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4849 return err;
4850}
4851
4852static int nl80211_stop_sched_scan(struct sk_buff *skb,
4853 struct genl_info *info)
4854{
4855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4856 int err;
807f8a8c
LC		 4857
4858 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4859 !rdev->ops->sched_scan_stop)
4860 return -EOPNOTSUPP;
4861
c10841ca
LC		 4862 mutex_lock(&rdev->sched_scan_mtx);
4863 err = __cfg80211_stop_sched_scan(rdev, false);
4864 mutex_unlock(&rdev->sched_scan_mtx);
4865
4866 return err;
807f8a8c
LC		 4867}
4868
9720bb3a
JB		 4869static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4870 u32 seq, int flags,
2a519311 4871 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4872 struct wireless_dev *wdev,
4873 struct cfg80211_internal_bss *intbss)
2a519311 4874{
48ab905d 4875 struct cfg80211_bss *res = &intbss->pub;
9caf0364 4876 const struct cfg80211_bss_ies *ies;
2a519311
JB		 4877 void *hdr;
4878 struct nlattr *bss;
48ab905d
JB		 4879
4880 ASSERT_WDEV_LOCK(wdev);
2a519311 4881
15e47304 4882 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 4883 NL80211_CMD_NEW_SCAN_RESULTS);
4884 if (!hdr)
4885 return -1;
4886
9720bb3a
JB		 4887 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4888
9360ffd1
DM		 4889 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4890 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4891 goto nla_put_failure;
2a519311
JB		 4892
4893 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4894 if (!bss)
4895 goto nla_put_failure;
9360ffd1 4896 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 4897 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 4898 goto nla_put_failure;
9caf0364
JB		 4899
4900 rcu_read_lock();
4901 ies = rcu_dereference(res->ies);
4902 if (ies && ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4903 ies->len, ies->data)) {
4904 rcu_read_unlock();
4905 goto nla_put_failure;
4906 }
4907 ies = rcu_dereference(res->beacon_ies);
4908 if (ies && ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
4909 ies->len, ies->data)) {
4910 rcu_read_unlock();
4911 goto nla_put_failure;
4912 }
4913 rcu_read_unlock();
4914
9360ffd1
DM		 4915 if (res->tsf &&
4916 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4917 goto nla_put_failure;
4918 if (res->beacon_interval &&
4919 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4920 goto nla_put_failure;
4921 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4922 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4923 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4924 jiffies_to_msecs(jiffies - intbss->ts)))
4925 goto nla_put_failure;
2a519311 4926
77965c97 4927 switch (rdev->wiphy.signal_type) {
2a519311 4928 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4929 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4930 goto nla_put_failure;
2a519311
JB		 4931 break;
4932 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4933 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4934 goto nla_put_failure;
2a519311
JB		 4935 break;
4936 default:
4937 break;
4938 }
4939
48ab905d 4940 switch (wdev->iftype) {
074ac8df 4941 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4942 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4943 if (intbss == wdev->current_bss &&
4944 nla_put_u32(msg, NL80211_BSS_STATUS,
4945 NL80211_BSS_STATUS_ASSOCIATED))
4946 goto nla_put_failure;
48ab905d
JB		 4947 break;
4948 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4949 if (intbss == wdev->current_bss &&
4950 nla_put_u32(msg, NL80211_BSS_STATUS,
4951 NL80211_BSS_STATUS_IBSS_JOINED))
4952 goto nla_put_failure;
48ab905d
JB		 4953 break;
4954 default:
4955 break;
4956 }
4957
2a519311
JB		 4958 nla_nest_end(msg, bss);
4959
4960 return genlmsg_end(msg, hdr);
4961
4962 nla_put_failure:
4963 genlmsg_cancel(msg, hdr);
4964 return -EMSGSIZE;
4965}
4966
4967static int nl80211_dump_scan(struct sk_buff *skb,
4968 struct netlink_callback *cb)
4969{
48ab905d
JB		 4970 struct cfg80211_registered_device *rdev;
4971 struct net_device *dev;
2a519311 4972 struct cfg80211_internal_bss *scan;
48ab905d 4973 struct wireless_dev *wdev;
2a519311
JB		 4974 int start = cb->args[1], idx = 0;
4975 int err;
4976
67748893
JB		 4977 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4978 if (err)
4979 return err;
2a519311 4980
48ab905d 4981 wdev = dev->ieee80211_ptr;
2a519311 4982
48ab905d
JB		 4983 wdev_lock(wdev);
4984 spin_lock_bh(&rdev->bss_lock);
4985 cfg80211_bss_expire(rdev);
4986
9720bb3a
JB		 4987 cb->seq = rdev->bss_generation;
4988
48ab905d 4989 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4990 if (++idx <= start)
4991 continue;
9720bb3a 4992 if (nl80211_send_bss(skb, cb,
2a519311 4993 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4994 rdev, wdev, scan) < 0) {
2a519311 4995 idx--;
67748893 4996 break;
2a519311
JB		 4997 }
4998 }
4999
48ab905d
JB		 5000 spin_unlock_bh(&rdev->bss_lock);
5001 wdev_unlock(wdev);
2a519311
JB		 5002
5003 cb->args[1] = idx;
67748893 5004 nl80211_finish_netdev_dump(rdev);
2a519311 5005
67748893 5006 return skb->len;
2a519311
JB		 5007}
5008
15e47304 5009static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5010 int flags, struct net_device *dev,
5011 struct survey_info *survey)
5012{
5013 void *hdr;
5014 struct nlattr *infoattr;
5015
15e47304 5016 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5017 NL80211_CMD_NEW_SURVEY_RESULTS);
5018 if (!hdr)
5019 return -ENOMEM;
5020
9360ffd1
DM		 5021 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5022 goto nla_put_failure;
61fa713c
HS		 5023
5024 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5025 if (!infoattr)
5026 goto nla_put_failure;
5027
9360ffd1
DM		 5028 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5029 survey->channel->center_freq))
5030 goto nla_put_failure;
5031
5032 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5033 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5034 goto nla_put_failure;
5035 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5036 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5037 goto nla_put_failure;
5038 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5039 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5040 survey->channel_time))
5041 goto nla_put_failure;
5042 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5043 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5044 survey->channel_time_busy))
5045 goto nla_put_failure;
5046 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5047 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5048 survey->channel_time_ext_busy))
5049 goto nla_put_failure;
5050 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5051 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5052 survey->channel_time_rx))
5053 goto nla_put_failure;
5054 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5055 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5056 survey->channel_time_tx))
5057 goto nla_put_failure;
61fa713c
HS		 5058
5059 nla_nest_end(msg, infoattr);
5060
5061 return genlmsg_end(msg, hdr);
5062
5063 nla_put_failure:
5064 genlmsg_cancel(msg, hdr);
5065 return -EMSGSIZE;
5066}
5067
5068static int nl80211_dump_survey(struct sk_buff *skb,
5069 struct netlink_callback *cb)
5070{
5071 struct survey_info survey;
5072 struct cfg80211_registered_device *dev;
5073 struct net_device *netdev;
61fa713c
HS		 5074 int survey_idx = cb->args[1];
5075 int res;
5076
67748893
JB		 5077 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5078 if (res)
5079 return res;
61fa713c
HS		 5080
5081 if (!dev->ops->dump_survey) {
5082 res = -EOPNOTSUPP;
5083 goto out_err;
5084 }
5085
5086 while (1) {
180cdc79
LR		 5087 struct ieee80211_channel *chan;
5088
e35e4d28 5089 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5090 if (res == -ENOENT)
5091 break;
5092 if (res)
5093 goto out_err;
5094
180cdc79
LR		 5095 /* Survey without a channel doesn't make sense */
5096 if (!survey.channel) {
5097 res = -EINVAL;
5098 goto out;
5099 }
5100
5101 chan = ieee80211_get_channel(&dev->wiphy,
5102 survey.channel->center_freq);
5103 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5104 survey_idx++;
5105 continue;
5106 }
5107
61fa713c 5108 if (nl80211_send_survey(skb,
15e47304 5109 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5110 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5111 netdev,
5112 &survey) < 0)
5113 goto out;
5114 survey_idx++;
5115 }
5116
5117 out:
5118 cb->args[1] = survey_idx;
5119 res = skb->len;
5120 out_err:
67748893 5121 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5122 return res;
5123}
5124
b23aa676
SO		 5125static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5126{
5127 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5128 NL80211_WPA_VERSION_2));
5129}
5130
636a5d36
JM		 5131static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5132{
4c476991
JB		 5133 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5134 struct net_device *dev = info->user_ptr[1];
19957bb3 5135 struct ieee80211_channel *chan;
e39e5b5e
JM		 5136 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5137 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5138 enum nl80211_auth_type auth_type;
fffd0934 5139 struct key_parse key;
d5cdfacb 5140 bool local_state_change;
636a5d36 5141
f4a11bb0
JB		 5142 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5143 return -EINVAL;
5144
5145 if (!info->attrs[NL80211_ATTR_MAC])
5146 return -EINVAL;
5147
1778092e
JM		 5148 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5149 return -EINVAL;
5150
19957bb3
JB		 5151 if (!info->attrs[NL80211_ATTR_SSID])
5152 return -EINVAL;
5153
5154 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5155 return -EINVAL;
5156
fffd0934
JB		 5157 err = nl80211_parse_key(info, &key);
5158 if (err)
5159 return err;
5160
5161 if (key.idx >= 0) {
e31b8213
JB		 5162 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5163 return -EINVAL;
fffd0934
JB		 5164 if (!key.p.key || !key.p.key_len)
5165 return -EINVAL;
5166 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5167 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5168 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5169 key.p.key_len != WLAN_KEY_LEN_WEP104))
5170 return -EINVAL;
5171 if (key.idx > 4)
5172 return -EINVAL;
5173 } else {
5174 key.p.key_len = 0;
5175 key.p.key = NULL;
5176 }
5177
afea0b7a
JB		 5178 if (key.idx >= 0) {
5179 int i;
5180 bool ok = false;
5181 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5182 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5183 ok = true;
5184 break;
5185 }
5186 }
4c476991
JB		 5187 if (!ok)
5188 return -EINVAL;
afea0b7a
JB		 5189 }
5190
4c476991
JB		 5191 if (!rdev->ops->auth)
5192 return -EOPNOTSUPP;
636a5d36 5193
074ac8df 5194 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5195 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5196 return -EOPNOTSUPP;
eec60b03 5197
19957bb3 5198 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5199 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5200 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5201 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5202 return -EINVAL;
636a5d36 5203
19957bb3
JB		 5204 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5205 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5206
5207 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5208 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5209 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5210 }
5211
19957bb3 5212 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5213 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5214 return -EINVAL;
636a5d36 5215
e39e5b5e
JM		 5216 if (auth_type == NL80211_AUTHTYPE_SAE &&
5217 !info->attrs[NL80211_ATTR_SAE_DATA])
5218 return -EINVAL;
5219
5220 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5221 if (auth_type != NL80211_AUTHTYPE_SAE)
5222 return -EINVAL;
5223 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5224 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5225 /* need to include at least Auth Transaction and Status Code */
5226 if (sae_data_len < 4)
5227 return -EINVAL;
5228 }
5229
d5cdfacb
JM		 5230 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5231
95de817b
JB		 5232 /*
5233 * Since we no longer track auth state, ignore
5234 * requests to only change local state.
5235 */
5236 if (local_state_change)
5237 return 0;
5238
4c476991
JB		 5239 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5240 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5241 key.p.key, key.p.key_len, key.idx,
5242 sae_data, sae_data_len);
636a5d36
JM		 5243}
5244
c0692b8f
JB		 5245static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5246 struct genl_info *info,
3dc27d25
JB		 5247 struct cfg80211_crypto_settings *settings,
5248 int cipher_limit)
b23aa676 5249{
c0b2bbd8
JB		 5250 memset(settings, 0, sizeof(*settings));
5251
b23aa676
SO		 5252 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5253
c0692b8f
JB		 5254 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5255 u16 proto;
5256 proto = nla_get_u16(
5257 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5258 settings->control_port_ethertype = cpu_to_be16(proto);
5259 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5260 proto != ETH_P_PAE)
5261 return -EINVAL;
5262 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5263 settings->control_port_no_encrypt = true;
5264 } else
5265 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5266
b23aa676
SO		 5267 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5268 void *data;
5269 int len, i;
5270
5271 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5272 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5273 settings->n_ciphers_pairwise = len / sizeof(u32);
5274
5275 if (len % sizeof(u32))
5276 return -EINVAL;
5277
3dc27d25 5278 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5279 return -EINVAL;
5280
5281 memcpy(settings->ciphers_pairwise, data, len);
5282
5283 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5284 if (!cfg80211_supported_cipher_suite(
5285 &rdev->wiphy,
b23aa676
SO		 5286 settings->ciphers_pairwise[i]))
5287 return -EINVAL;
5288 }
5289
5290 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5291 settings->cipher_group =
5292 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5293 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5294 settings->cipher_group))
b23aa676
SO		 5295 return -EINVAL;
5296 }
5297
5298 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5299 settings->wpa_versions =
5300 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5301 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5302 return -EINVAL;
5303 }
5304
5305 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5306 void *data;
6d30240e 5307 int len;
b23aa676
SO		 5308
5309 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5310 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5311 settings->n_akm_suites = len / sizeof(u32);
5312
5313 if (len % sizeof(u32))
5314 return -EINVAL;
5315
1b9ca027
JM		 5316 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5317 return -EINVAL;
5318
b23aa676 5319 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5320 }
5321
5322 return 0;
5323}
5324
636a5d36
JM		 5325static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5326{
4c476991
JB		 5327 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5328 struct net_device *dev = info->user_ptr[1];
19957bb3 5329 struct cfg80211_crypto_settings crypto;
f444de05 5330 struct ieee80211_channel *chan;
3e5d7649 5331 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5332 int err, ssid_len, ie_len = 0;
5333 bool use_mfp = false;
7e7c8926
BG		 5334 u32 flags = 0;
5335 struct ieee80211_ht_cap *ht_capa = NULL;
5336 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5337
f4a11bb0
JB		 5338 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5339 return -EINVAL;
5340
5341 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5342 !info->attrs[NL80211_ATTR_SSID] ||
5343 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5344 return -EINVAL;
5345
4c476991
JB		 5346 if (!rdev->ops->assoc)
5347 return -EOPNOTSUPP;
636a5d36 5348
074ac8df 5349 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5350 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5351 return -EOPNOTSUPP;
eec60b03 5352
19957bb3 5353 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5354
19957bb3
JB		 5355 chan = ieee80211_get_channel(&rdev->wiphy,
5356 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5357 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5358 return -EINVAL;
636a5d36 5359
19957bb3
JB		 5360 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5361 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5362
5363 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5364 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5365 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5366 }
5367
dc6382ce 5368 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5369 enum nl80211_mfp mfp =
dc6382ce 5370 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5371 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5372 use_mfp = true;
4c476991
JB		 5373 else if (mfp != NL80211_MFP_NO)
5374 return -EINVAL;
dc6382ce
JM		 5375 }
5376
3e5d7649
JB		 5377 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5378 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5379
7e7c8926
BG		 5380 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5381 flags |= ASSOC_REQ_DISABLE_HT;
5382
5383 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5384 ht_capa_mask =
5385 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5386
5387 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5388 if (!ht_capa_mask)
5389 return -EINVAL;
5390 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5391 }
5392
c0692b8f 5393 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5394 if (!err)
3e5d7649
JB		 5395 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5396 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5397 &crypto, flags, ht_capa,
5398 ht_capa_mask);
636a5d36 5399
636a5d36
JM		 5400 return err;
5401}
5402
5403static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5404{
4c476991
JB		 5405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5406 struct net_device *dev = info->user_ptr[1];
19957bb3 5407 const u8 *ie = NULL, *bssid;
4c476991 5408 int ie_len = 0;
19957bb3 5409 u16 reason_code;
d5cdfacb 5410 bool local_state_change;
636a5d36 5411
f4a11bb0
JB		 5412 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5413 return -EINVAL;
5414
5415 if (!info->attrs[NL80211_ATTR_MAC])
5416 return -EINVAL;
5417
5418 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5419 return -EINVAL;
5420
4c476991
JB		 5421 if (!rdev->ops->deauth)
5422 return -EOPNOTSUPP;
636a5d36 5423
074ac8df 5424 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5425 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5426 return -EOPNOTSUPP;
eec60b03 5427
19957bb3 5428 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5429
19957bb3
JB		 5430 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5431 if (reason_code == 0) {
f4a11bb0 5432 /* Reason Code 0 is reserved */
4c476991 5433 return -EINVAL;
255e737e 5434 }
636a5d36
JM		 5435
5436 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5437 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5438 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5439 }
5440
d5cdfacb
JM		 5441 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5442
4c476991
JB		 5443 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5444 local_state_change);
636a5d36
JM		 5445}
5446
5447static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5448{
4c476991
JB		 5449 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5450 struct net_device *dev = info->user_ptr[1];
19957bb3 5451 const u8 *ie = NULL, *bssid;
4c476991 5452 int ie_len = 0;
19957bb3 5453 u16 reason_code;
d5cdfacb 5454 bool local_state_change;
636a5d36 5455
f4a11bb0
JB		 5456 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5457 return -EINVAL;
5458
5459 if (!info->attrs[NL80211_ATTR_MAC])
5460 return -EINVAL;
5461
5462 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5463 return -EINVAL;
5464
4c476991
JB		 5465 if (!rdev->ops->disassoc)
5466 return -EOPNOTSUPP;
636a5d36 5467
074ac8df 5468 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5469 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5470 return -EOPNOTSUPP;
eec60b03 5471
19957bb3 5472 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5473
19957bb3
JB		 5474 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5475 if (reason_code == 0) {
f4a11bb0 5476 /* Reason Code 0 is reserved */
4c476991 5477 return -EINVAL;
255e737e 5478 }
636a5d36
JM		 5479
5480 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5481 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5482 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5483 }
5484
d5cdfacb
JM		 5485 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5486
4c476991
JB		 5487 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5488 local_state_change);
636a5d36
JM		 5489}
5490
dd5b4cc7
FF		 5491static bool
5492nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5493 int mcast_rate[IEEE80211_NUM_BANDS],
5494 int rateval)
5495{
5496 struct wiphy *wiphy = &rdev->wiphy;
5497 bool found = false;
5498 int band, i;
5499
5500 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5501 struct ieee80211_supported_band *sband;
5502
5503 sband = wiphy->bands[band];
5504 if (!sband)
5505 continue;
5506
5507 for (i = 0; i < sband->n_bitrates; i++) {
5508 if (sband->bitrates[i].bitrate == rateval) {
5509 mcast_rate[band] = i + 1;
5510 found = true;
5511 break;
5512 }
5513 }
5514 }
5515
5516 return found;
5517}
5518
04a773ad
JB		 5519static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5520{
4c476991
JB		 5521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5522 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5523 struct cfg80211_ibss_params ibss;
5524 struct wiphy *wiphy;
fffd0934 5525 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5526 int err;
5527
8e30bc55
JB		 5528 memset(&ibss, 0, sizeof(ibss));
5529
04a773ad
JB		 5530 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5531 return -EINVAL;
5532
683b6d3b 5533 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 5534 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5535 return -EINVAL;
5536
8e30bc55
JB		 5537 ibss.beacon_interval = 100;
5538
5539 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5540 ibss.beacon_interval =
5541 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5542 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5543 return -EINVAL;
5544 }
5545
4c476991
JB		 5546 if (!rdev->ops->join_ibss)
5547 return -EOPNOTSUPP;
04a773ad 5548
4c476991
JB		 5549 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5550 return -EOPNOTSUPP;
04a773ad 5551
79c97e97 5552 wiphy = &rdev->wiphy;
04a773ad 5553
39193498 5554 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5555 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5556
5557 if (!is_valid_ether_addr(ibss.bssid))
5558 return -EINVAL;
5559 }
04a773ad
JB		 5560 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5561 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5562
5563 if (info->attrs[NL80211_ATTR_IE]) {
5564 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5565 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5566 }
5567
683b6d3b
JB		 5568 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5569 if (err)
5570 return err;
04a773ad 5571
683b6d3b 5572 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 5573 return -EINVAL;
5574
db9c64cf
JB		 5575 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5576 return -EINVAL;
5577 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5578 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 5579 return -EINVAL;
db9c64cf 5580
04a773ad 5581 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5582 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5583
fbd2c8dc
TP		 5584 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5585 u8 *rates =
5586 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5587 int n_rates =
5588 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5589 struct ieee80211_supported_band *sband =
683b6d3b 5590 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 5591
34850ab2
JB		 5592 err = ieee80211_get_ratemask(sband, rates, n_rates,
5593 &ibss.basic_rates);
5594 if (err)
5595 return err;
fbd2c8dc 5596 }
dd5b4cc7
FF		 5597
5598 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5599 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5600 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5601 return -EINVAL;
fbd2c8dc 5602
4c476991 5603 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 5604 bool no_ht = false;
5605
4c476991 5606 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 5607 info->attrs[NL80211_ATTR_KEYS],
5608 &no_ht);
4c476991
JB		 5609 if (IS_ERR(connkeys))
5610 return PTR_ERR(connkeys);
de7044ee 5611
3d9d1d66
JB		 5612 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5613 no_ht) {
de7044ee
SM		 5614 kfree(connkeys);
5615 return -EINVAL;
5616 }
4c476991 5617 }
04a773ad 5618
267335d6
AQ		 5619 ibss.control_port =
5620 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5621
4c476991 5622 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5623 if (err)
5624 kfree(connkeys);
04a773ad
JB		 5625 return err;
5626}
5627
5628static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5629{
4c476991
JB		 5630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5631 struct net_device *dev = info->user_ptr[1];
04a773ad 5632
4c476991
JB		 5633 if (!rdev->ops->leave_ibss)
5634 return -EOPNOTSUPP;
04a773ad 5635
4c476991
JB		 5636 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5637 return -EOPNOTSUPP;
04a773ad 5638
4c476991 5639 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5640}
5641
f4e583c8
AQ		 5642static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5643{
5644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5645 struct net_device *dev = info->user_ptr[1];
5646 int mcast_rate[IEEE80211_NUM_BANDS];
5647 u32 nla_rate;
5648 int err;
5649
5650 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5651 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5652 return -EOPNOTSUPP;
5653
5654 if (!rdev->ops->set_mcast_rate)
5655 return -EOPNOTSUPP;
5656
5657 memset(mcast_rate, 0, sizeof(mcast_rate));
5658
5659 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5660 return -EINVAL;
5661
5662 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5663 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5664 return -EINVAL;
5665
5666 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5667
5668 return err;
5669}
5670
5671
aff89a9b
JB		 5672#ifdef CONFIG_NL80211_TESTMODE
5673static struct genl_multicast_group nl80211_testmode_mcgrp = {
5674 .name = "testmode",
5675};
5676
5677static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5678{
4c476991 5679 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5680 int err;
5681
5682 if (!info->attrs[NL80211_ATTR_TESTDATA])
5683 return -EINVAL;
5684
aff89a9b
JB		 5685 err = -EOPNOTSUPP;
5686 if (rdev->ops->testmode_cmd) {
5687 rdev->testmode_info = info;
e35e4d28 5688 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 5689 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5690 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5691 rdev->testmode_info = NULL;
5692 }
5693
aff89a9b
JB		 5694 return err;
5695}
5696
71063f0e
WYG		 5697static int nl80211_testmode_dump(struct sk_buff *skb,
5698 struct netlink_callback *cb)
5699{
00918d33 5700 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5701 int err;
5702 long phy_idx;
5703 void *data = NULL;
5704 int data_len = 0;
5705
5706 if (cb->args[0]) {
5707 /*
5708 * 0 is a valid index, but not valid for args[0],
5709 * so we need to offset by 1.
5710 */
5711 phy_idx = cb->args[0] - 1;
5712 } else {
5713 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5714 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5715 nl80211_policy);
5716 if (err)
5717 return err;
00918d33 5718
2bd7e35d
JB		 5719 mutex_lock(&cfg80211_mutex);
5720 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5721 nl80211_fam.attrbuf);
5722 if (IS_ERR(rdev)) {
5723 mutex_unlock(&cfg80211_mutex);
5724 return PTR_ERR(rdev);
00918d33 5725 }
2bd7e35d
JB		 5726 phy_idx = rdev->wiphy_idx;
5727 rdev = NULL;
5728 mutex_unlock(&cfg80211_mutex);
5729
71063f0e
WYG		 5730 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5731 cb->args[1] =
5732 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5733 }
5734
5735 if (cb->args[1]) {
5736 data = nla_data((void *)cb->args[1]);
5737 data_len = nla_len((void *)cb->args[1]);
5738 }
5739
5740 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5741 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5742 if (!rdev) {
71063f0e
WYG		 5743 mutex_unlock(&cfg80211_mutex);
5744 return -ENOENT;
5745 }
00918d33 5746 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5747 mutex_unlock(&cfg80211_mutex);
5748
00918d33 5749 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5750 err = -EOPNOTSUPP;
5751 goto out_err;
5752 }
5753
5754 while (1) {
15e47304 5755 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 5756 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5757 NL80211_CMD_TESTMODE);
5758 struct nlattr *tmdata;
5759
9360ffd1 5760 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5761 genlmsg_cancel(skb, hdr);
5762 break;
5763 }
5764
5765 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5766 if (!tmdata) {
5767 genlmsg_cancel(skb, hdr);
5768 break;
5769 }
e35e4d28 5770 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 5771 nla_nest_end(skb, tmdata);
5772
5773 if (err == -ENOBUFS || err == -ENOENT) {
5774 genlmsg_cancel(skb, hdr);
5775 break;
5776 } else if (err) {
5777 genlmsg_cancel(skb, hdr);
5778 goto out_err;
5779 }
5780
5781 genlmsg_end(skb, hdr);
5782 }
5783
5784 err = skb->len;
5785 /* see above */
5786 cb->args[0] = phy_idx + 1;
5787 out_err:
00918d33 5788 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5789 return err;
5790}
5791
aff89a9b
JB		 5792static struct sk_buff *
5793__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 5794 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 5795{
5796 struct sk_buff *skb;
5797 void *hdr;
5798 struct nlattr *data;
5799
5800 skb = nlmsg_new(approxlen + 100, gfp);
5801 if (!skb)
5802 return NULL;
5803
15e47304 5804 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 5805 if (!hdr) {
5806 kfree_skb(skb);
5807 return NULL;
5808 }
5809
9360ffd1
DM		 5810 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5811 goto nla_put_failure;
aff89a9b
JB		 5812 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5813
5814 ((void **)skb->cb)[0] = rdev;
5815 ((void **)skb->cb)[1] = hdr;
5816 ((void **)skb->cb)[2] = data;
5817
5818 return skb;
5819
5820 nla_put_failure:
5821 kfree_skb(skb);
5822 return NULL;
5823}
5824
5825struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5826 int approxlen)
5827{
5828 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5829
5830 if (WARN_ON(!rdev->testmode_info))
5831 return NULL;
5832
5833 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 5834 rdev->testmode_info->snd_portid,
aff89a9b
JB		 5835 rdev->testmode_info->snd_seq,
5836 GFP_KERNEL);
5837}
5838EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5839
5840int cfg80211_testmode_reply(struct sk_buff *skb)
5841{
5842 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5843 void *hdr = ((void **)skb->cb)[1];
5844 struct nlattr *data = ((void **)skb->cb)[2];
5845
5846 if (WARN_ON(!rdev->testmode_info)) {
5847 kfree_skb(skb);
5848 return -EINVAL;
5849 }
5850
5851 nla_nest_end(skb, data);
5852 genlmsg_end(skb, hdr);
5853 return genlmsg_reply(skb, rdev->testmode_info);
5854}
5855EXPORT_SYMBOL(cfg80211_testmode_reply);
5856
5857struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5858 int approxlen, gfp_t gfp)
5859{
5860 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5861
5862 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5863}
5864EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5865
5866void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5867{
5868 void *hdr = ((void **)skb->cb)[1];
5869 struct nlattr *data = ((void **)skb->cb)[2];
5870
5871 nla_nest_end(skb, data);
5872 genlmsg_end(skb, hdr);
5873 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5874}
5875EXPORT_SYMBOL(cfg80211_testmode_event);
5876#endif
5877
b23aa676
SO		 5878static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5879{
4c476991
JB		 5880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5881 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5882 struct cfg80211_connect_params connect;
5883 struct wiphy *wiphy;
fffd0934 5884 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5885 int err;
5886
5887 memset(&connect, 0, sizeof(connect));
5888
5889 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5890 return -EINVAL;
5891
5892 if (!info->attrs[NL80211_ATTR_SSID] ||
5893 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5894 return -EINVAL;
5895
5896 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5897 connect.auth_type =
5898 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 5899 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5900 NL80211_CMD_CONNECT))
b23aa676
SO		 5901 return -EINVAL;
5902 } else
5903 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5904
5905 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5906
c0692b8f 5907 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5908 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5909 if (err)
5910 return err;
b23aa676 5911
074ac8df 5912 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5913 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5914 return -EOPNOTSUPP;
b23aa676 5915
79c97e97 5916 wiphy = &rdev->wiphy;
b23aa676 5917
4486ea98
BS		 5918 connect.bg_scan_period = -1;
5919 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5920 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5921 connect.bg_scan_period =
5922 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5923 }
5924
b23aa676
SO		 5925 if (info->attrs[NL80211_ATTR_MAC])
5926 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5927 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5928 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5929
5930 if (info->attrs[NL80211_ATTR_IE]) {
5931 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5932 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5933 }
5934
5935 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5936 connect.channel =
5937 ieee80211_get_channel(wiphy,
5938 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5939 if (!connect.channel ||
4c476991
JB		 5940 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5941 return -EINVAL;
b23aa676
SO		 5942 }
5943
fffd0934
JB		 5944 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5945 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 5946 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 5947 if (IS_ERR(connkeys))
5948 return PTR_ERR(connkeys);
fffd0934
JB		 5949 }
5950
7e7c8926
BG		 5951 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5952 connect.flags |= ASSOC_REQ_DISABLE_HT;
5953
5954 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5955 memcpy(&connect.ht_capa_mask,
5956 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5957 sizeof(connect.ht_capa_mask));
5958
5959 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 5960 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5961 kfree(connkeys);
7e7c8926 5962 return -EINVAL;
b4e4f47e 5963 }
7e7c8926
BG		 5964 memcpy(&connect.ht_capa,
5965 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5966 sizeof(connect.ht_capa));
5967 }
5968
fffd0934 5969 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5970 if (err)
5971 kfree(connkeys);
b23aa676
SO		 5972 return err;
5973}
5974
5975static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5976{
4c476991
JB		 5977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5978 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5979 u16 reason;
5980
5981 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5982 reason = WLAN_REASON_DEAUTH_LEAVING;
5983 else
5984 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5985
5986 if (reason == 0)
5987 return -EINVAL;
5988
074ac8df 5989 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5990 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5991 return -EOPNOTSUPP;
b23aa676 5992
4c476991 5993 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5994}
5995
463d0183
JB		 5996static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5997{
4c476991 5998 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5999 struct net *net;
6000 int err;
6001 u32 pid;
6002
6003 if (!info->attrs[NL80211_ATTR_PID])
6004 return -EINVAL;
6005
6006 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6007
463d0183 6008 net = get_net_ns_by_pid(pid);
4c476991
JB		 6009 if (IS_ERR(net))
6010 return PTR_ERR(net);
463d0183
JB		 6011
6012 err = 0;
6013
6014 /* check if anything to do */
4c476991
JB		 6015 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6016 err = cfg80211_switch_netns(rdev, net);
463d0183 6017
463d0183 6018 put_net(net);
463d0183
JB		 6019 return err;
6020}
6021
67fbb16b
SO		 6022static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6023{
4c476991 6024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6025 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6026 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6027 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6028 struct cfg80211_pmksa pmksa;
6029
6030 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6031
6032 if (!info->attrs[NL80211_ATTR_MAC])
6033 return -EINVAL;
6034
6035 if (!info->attrs[NL80211_ATTR_PMKID])
6036 return -EINVAL;
6037
67fbb16b
SO		 6038 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6039 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6040
074ac8df 6041 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6042 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6043 return -EOPNOTSUPP;
67fbb16b
SO		 6044
6045 switch (info->genlhdr->cmd) {
6046 case NL80211_CMD_SET_PMKSA:
6047 rdev_ops = rdev->ops->set_pmksa;
6048 break;
6049 case NL80211_CMD_DEL_PMKSA:
6050 rdev_ops = rdev->ops->del_pmksa;
6051 break;
6052 default:
6053 WARN_ON(1);
6054 break;
6055 }
6056
4c476991
JB		 6057 if (!rdev_ops)
6058 return -EOPNOTSUPP;
67fbb16b 6059
4c476991 6060 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6061}
6062
6063static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6064{
4c476991
JB		 6065 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6066 struct net_device *dev = info->user_ptr[1];
67fbb16b 6067
074ac8df 6068 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6069 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6070 return -EOPNOTSUPP;
67fbb16b 6071
4c476991
JB		 6072 if (!rdev->ops->flush_pmksa)
6073 return -EOPNOTSUPP;
67fbb16b 6074
e35e4d28 6075 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6076}
6077
109086ce
AN		 6078static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6079{
6080 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6081 struct net_device *dev = info->user_ptr[1];
6082 u8 action_code, dialog_token;
6083 u16 status_code;
6084 u8 *peer;
6085
6086 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6087 !rdev->ops->tdls_mgmt)
6088 return -EOPNOTSUPP;
6089
6090 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6091 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6092 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6093 !info->attrs[NL80211_ATTR_IE] ||
6094 !info->attrs[NL80211_ATTR_MAC])
6095 return -EINVAL;
6096
6097 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6098 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6099 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6100 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6101
e35e4d28
HG		 6102 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6103 dialog_token, status_code,
6104 nla_data(info->attrs[NL80211_ATTR_IE]),
6105 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6106}
6107
6108static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6109{
6110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6111 struct net_device *dev = info->user_ptr[1];
6112 enum nl80211_tdls_operation operation;
6113 u8 *peer;
6114
6115 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6116 !rdev->ops->tdls_oper)
6117 return -EOPNOTSUPP;
6118
6119 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6120 !info->attrs[NL80211_ATTR_MAC])
6121 return -EINVAL;
6122
6123 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6124 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6125
e35e4d28 6126 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6127}
6128
9588bbd5
JM		 6129static int nl80211_remain_on_channel(struct sk_buff *skb,
6130 struct genl_info *info)
6131{
4c476991 6132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6133 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6134 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6135 struct sk_buff *msg;
6136 void *hdr;
6137 u64 cookie;
683b6d3b 6138 u32 duration;
9588bbd5
JM		 6139 int err;
6140
6141 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6142 !info->attrs[NL80211_ATTR_DURATION])
6143 return -EINVAL;
6144
6145 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6146
ebf348fc
JB		 6147 if (!rdev->ops->remain_on_channel ||
6148 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6149 return -EOPNOTSUPP;
6150
9588bbd5 6151 /*
ebf348fc
JB		 6152 * We should be on that channel for at least a minimum amount of
6153 * time (10ms) but no longer than the driver supports.
9588bbd5 6154 */
ebf348fc 6155 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6156 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6157 return -EINVAL;
6158
683b6d3b
JB		 6159 err = nl80211_parse_chandef(rdev, info, &chandef);
6160 if (err)
6161 return err;
9588bbd5
JM		 6162
6163 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6164 if (!msg)
6165 return -ENOMEM;
9588bbd5 6166
15e47304 6167 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6168 NL80211_CMD_REMAIN_ON_CHANNEL);
6169
6170 if (IS_ERR(hdr)) {
6171 err = PTR_ERR(hdr);
6172 goto free_msg;
6173 }
6174
683b6d3b
JB		 6175 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6176 duration, &cookie);
9588bbd5
JM		 6177
6178 if (err)
6179 goto free_msg;
6180
9360ffd1
DM		 6181 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6182 goto nla_put_failure;
9588bbd5
JM		 6183
6184 genlmsg_end(msg, hdr);
4c476991
JB		 6185
6186 return genlmsg_reply(msg, info);
9588bbd5
JM		 6187
6188 nla_put_failure:
6189 err = -ENOBUFS;
6190 free_msg:
6191 nlmsg_free(msg);
9588bbd5
JM		 6192 return err;
6193}
6194
6195static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6196 struct genl_info *info)
6197{
4c476991 6198 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6199 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6200 u64 cookie;
9588bbd5
JM		 6201
6202 if (!info->attrs[NL80211_ATTR_COOKIE])
6203 return -EINVAL;
6204
4c476991
JB		 6205 if (!rdev->ops->cancel_remain_on_channel)
6206 return -EOPNOTSUPP;
9588bbd5 6207
9588bbd5
JM		 6208 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6209
e35e4d28 6210 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6211}
6212
13ae75b1
JM		 6213static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6214 u8 *rates, u8 rates_len)
6215{
6216 u8 i;
6217 u32 mask = 0;
6218
6219 for (i = 0; i < rates_len; i++) {
6220 int rate = (rates[i] & 0x7f) * 5;
6221 int ridx;
6222 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6223 struct ieee80211_rate *srate =
6224 &sband->bitrates[ridx];
6225 if (rate == srate->bitrate) {
6226 mask |= 1 << ridx;
6227 break;
6228 }
6229 }
6230 if (ridx == sband->n_bitrates)
6231 return 0; /* rate not found */
6232 }
6233
6234 return mask;
6235}
6236
24db78c0
SW		 6237static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6238 u8 *rates, u8 rates_len,
6239 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6240{
6241 u8 i;
6242
6243 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6244
6245 for (i = 0; i < rates_len; i++) {
6246 int ridx, rbit;
6247
6248 ridx = rates[i] / 8;
6249 rbit = BIT(rates[i] % 8);
6250
6251 /* check validity */
910570b5 6252 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6253 return false;
6254
6255 /* check availability */
6256 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6257 mcs[ridx] |= rbit;
6258 else
6259 return false;
6260 }
6261
6262 return true;
6263}
6264
b54452b0 6265static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6266 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6267 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6268 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6269 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6270};
6271
6272static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6273 struct genl_info *info)
6274{
6275 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6276 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6277 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6278 int rem, i;
6279 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6280 struct nlattr *tx_rates;
6281 struct ieee80211_supported_band *sband;
6282
6283 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6284 return -EINVAL;
6285
4c476991
JB		 6286 if (!rdev->ops->set_bitrate_mask)
6287 return -EOPNOTSUPP;
13ae75b1
JM		 6288
6289 memset(&mask, 0, sizeof(mask));
6290 /* Default to all rates enabled */
6291 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6292 sband = rdev->wiphy.bands[i];
6293 mask.control[i].legacy =
6294 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6295 if (sband)
6296 memcpy(mask.control[i].mcs,
6297 sband->ht_cap.mcs.rx_mask,
6298 sizeof(mask.control[i].mcs));
6299 else
6300 memset(mask.control[i].mcs, 0,
6301 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6302 }
6303
6304 /*
6305 * The nested attribute uses enum nl80211_band as the index. This maps
6306 * directly to the enum ieee80211_band values used in cfg80211.
6307 */
24db78c0 6308 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6309 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6310 {
6311 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6312 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6313 return -EINVAL;
13ae75b1 6314 sband = rdev->wiphy.bands[band];
4c476991
JB		 6315 if (sband == NULL)
6316 return -EINVAL;
13ae75b1
JM		 6317 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6318 nla_len(tx_rates), nl80211_txattr_policy);
6319 if (tb[NL80211_TXRATE_LEGACY]) {
6320 mask.control[band].legacy = rateset_to_mask(
6321 sband,
6322 nla_data(tb[NL80211_TXRATE_LEGACY]),
6323 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6324 if ((mask.control[band].legacy == 0) &&
6325 nla_len(tb[NL80211_TXRATE_LEGACY]))
6326 return -EINVAL;
24db78c0
SW		 6327 }
6328 if (tb[NL80211_TXRATE_MCS]) {
6329 if (!ht_rateset_to_mask(
6330 sband,
6331 nla_data(tb[NL80211_TXRATE_MCS]),
6332 nla_len(tb[NL80211_TXRATE_MCS]),
6333 mask.control[band].mcs))
6334 return -EINVAL;
6335 }
6336
6337 if (mask.control[band].legacy == 0) {
6338 /* don't allow empty legacy rates if HT
6339 * is not even supported. */
6340 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6341 return -EINVAL;
6342
6343 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6344 if (mask.control[band].mcs[i])
6345 break;
6346
6347 /* legacy and mcs rates may not be both empty */
6348 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6349 return -EINVAL;
13ae75b1
JM		 6350 }
6351 }
6352
e35e4d28 6353 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 6354}
6355
2e161f78 6356static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6357{
4c476991 6358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6359 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6360 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6361
6362 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6363 return -EINVAL;
6364
2e161f78
JB		 6365 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6366 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6367
71bbc994
JB		 6368 switch (wdev->iftype) {
6369 case NL80211_IFTYPE_STATION:
6370 case NL80211_IFTYPE_ADHOC:
6371 case NL80211_IFTYPE_P2P_CLIENT:
6372 case NL80211_IFTYPE_AP:
6373 case NL80211_IFTYPE_AP_VLAN:
6374 case NL80211_IFTYPE_MESH_POINT:
6375 case NL80211_IFTYPE_P2P_GO:
98104fde 6376 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6377 break;
6378 default:
4c476991 6379 return -EOPNOTSUPP;
71bbc994 6380 }
026331c4
JM		 6381
6382 /* not much point in registering if we can't reply */
4c476991
JB		 6383 if (!rdev->ops->mgmt_tx)
6384 return -EOPNOTSUPP;
026331c4 6385
15e47304 6386 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6387 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6388 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6389}
6390
2e161f78 6391static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6392{
4c476991 6393 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6394 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6395 struct cfg80211_chan_def chandef;
026331c4 6396 int err;
d64d373f 6397 void *hdr = NULL;
026331c4 6398 u64 cookie;
e247bd90 6399 struct sk_buff *msg = NULL;
f7ca38df 6400 unsigned int wait = 0;
e247bd90
JB		 6401 bool offchan, no_cck, dont_wait_for_ack;
6402
6403 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 6404
683b6d3b 6405 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 6406 return -EINVAL;
6407
4c476991
JB		 6408 if (!rdev->ops->mgmt_tx)
6409 return -EOPNOTSUPP;
026331c4 6410
71bbc994
JB		 6411 switch (wdev->iftype) {
6412 case NL80211_IFTYPE_STATION:
6413 case NL80211_IFTYPE_ADHOC:
6414 case NL80211_IFTYPE_P2P_CLIENT:
6415 case NL80211_IFTYPE_AP:
6416 case NL80211_IFTYPE_AP_VLAN:
6417 case NL80211_IFTYPE_MESH_POINT:
6418 case NL80211_IFTYPE_P2P_GO:
98104fde 6419 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6420 break;
6421 default:
4c476991 6422 return -EOPNOTSUPP;
71bbc994 6423 }
026331c4 6424
f7ca38df 6425 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6426 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6427 return -EINVAL;
6428 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6429
6430 /*
6431 * We should wait on the channel for at least a minimum amount
6432 * of time (10ms) but no longer than the driver supports.
6433 */
6434 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6435 wait > rdev->wiphy.max_remain_on_channel_duration)
6436 return -EINVAL;
6437
f7ca38df
JB		 6438 }
6439
f7ca38df
JB		 6440 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6441
7c4ef712
JB		 6442 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6443 return -EINVAL;
6444
e9f935e3
RM		 6445 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6446
683b6d3b
JB		 6447 err = nl80211_parse_chandef(rdev, info, &chandef);
6448 if (err)
6449 return err;
026331c4 6450
e247bd90
JB		 6451 if (!dont_wait_for_ack) {
6452 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6453 if (!msg)
6454 return -ENOMEM;
026331c4 6455
15e47304 6456 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6457 NL80211_CMD_FRAME);
026331c4 6458
e247bd90
JB		 6459 if (IS_ERR(hdr)) {
6460 err = PTR_ERR(hdr);
6461 goto free_msg;
6462 }
026331c4 6463 }
e247bd90 6464
683b6d3b 6465 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 6466 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6467 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6468 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6469 if (err)
6470 goto free_msg;
6471
e247bd90 6472 if (msg) {
9360ffd1
DM		 6473 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6474 goto nla_put_failure;
026331c4 6475
e247bd90
JB		 6476 genlmsg_end(msg, hdr);
6477 return genlmsg_reply(msg, info);
6478 }
6479
6480 return 0;
026331c4
JM		 6481
6482 nla_put_failure:
6483 err = -ENOBUFS;
6484 free_msg:
6485 nlmsg_free(msg);
026331c4
JM		 6486 return err;
6487}
6488
f7ca38df
JB		 6489static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6490{
6491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6492 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6493 u64 cookie;
6494
6495 if (!info->attrs[NL80211_ATTR_COOKIE])
6496 return -EINVAL;
6497
6498 if (!rdev->ops->mgmt_tx_cancel_wait)
6499 return -EOPNOTSUPP;
6500
71bbc994
JB		 6501 switch (wdev->iftype) {
6502 case NL80211_IFTYPE_STATION:
6503 case NL80211_IFTYPE_ADHOC:
6504 case NL80211_IFTYPE_P2P_CLIENT:
6505 case NL80211_IFTYPE_AP:
6506 case NL80211_IFTYPE_AP_VLAN:
6507 case NL80211_IFTYPE_P2P_GO:
98104fde 6508 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6509 break;
6510 default:
f7ca38df 6511 return -EOPNOTSUPP;
71bbc994 6512 }
f7ca38df
JB		 6513
6514 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6515
e35e4d28 6516 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 6517}
6518
ffb9eb3d
KV		 6519static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6520{
4c476991 6521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6522 struct wireless_dev *wdev;
4c476991 6523 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6524 u8 ps_state;
6525 bool state;
6526 int err;
6527
4c476991
JB		 6528 if (!info->attrs[NL80211_ATTR_PS_STATE])
6529 return -EINVAL;
ffb9eb3d
KV		 6530
6531 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6532
4c476991
JB		 6533 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6534 return -EINVAL;
ffb9eb3d
KV		 6535
6536 wdev = dev->ieee80211_ptr;
6537
4c476991
JB		 6538 if (!rdev->ops->set_power_mgmt)
6539 return -EOPNOTSUPP;
ffb9eb3d
KV		 6540
6541 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6542
6543 if (state == wdev->ps)
4c476991 6544 return 0;
ffb9eb3d 6545
e35e4d28 6546 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 6547 if (!err)
6548 wdev->ps = state;
ffb9eb3d
KV		 6549 return err;
6550}
6551
6552static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6553{
4c476991 6554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6555 enum nl80211_ps_state ps_state;
6556 struct wireless_dev *wdev;
4c476991 6557 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6558 struct sk_buff *msg;
6559 void *hdr;
6560 int err;
6561
ffb9eb3d
KV		 6562 wdev = dev->ieee80211_ptr;
6563
4c476991
JB		 6564 if (!rdev->ops->set_power_mgmt)
6565 return -EOPNOTSUPP;
ffb9eb3d
KV		 6566
6567 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6568 if (!msg)
6569 return -ENOMEM;
ffb9eb3d 6570
15e47304 6571 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6572 NL80211_CMD_GET_POWER_SAVE);
6573 if (!hdr) {
4c476991 6574 err = -ENOBUFS;
ffb9eb3d
KV		 6575 goto free_msg;
6576 }
6577
6578 if (wdev->ps)
6579 ps_state = NL80211_PS_ENABLED;
6580 else
6581 ps_state = NL80211_PS_DISABLED;
6582
9360ffd1
DM		 6583 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6584 goto nla_put_failure;
ffb9eb3d
KV		 6585
6586 genlmsg_end(msg, hdr);
4c476991 6587 return genlmsg_reply(msg, info);
ffb9eb3d 6588
4c476991 6589 nla_put_failure:
ffb9eb3d 6590 err = -ENOBUFS;
4c476991 6591 free_msg:
ffb9eb3d 6592 nlmsg_free(msg);
ffb9eb3d
KV		 6593 return err;
6594}
6595
d6dc1a38
JO		 6596static struct nla_policy
6597nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6598 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6599 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6600 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6601 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6602 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6603 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6604};
6605
84f10708 6606static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 6607 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 6608{
6609 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6610 struct wireless_dev *wdev;
6611 struct net_device *dev = info->user_ptr[1];
6612
d9d8b019 6613 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 6614 return -EINVAL;
6615
6616 wdev = dev->ieee80211_ptr;
6617
6618 if (!rdev->ops->set_cqm_txe_config)
6619 return -EOPNOTSUPP;
6620
6621 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6622 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6623 return -EOPNOTSUPP;
6624
e35e4d28 6625 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 6626}
6627
d6dc1a38
JO		 6628static int nl80211_set_cqm_rssi(struct genl_info *info,
6629 s32 threshold, u32 hysteresis)
6630{
4c476991 6631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6632 struct wireless_dev *wdev;
4c476991 6633 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6634
6635 if (threshold > 0)
6636 return -EINVAL;
6637
d6dc1a38
JO		 6638 wdev = dev->ieee80211_ptr;
6639
4c476991
JB		 6640 if (!rdev->ops->set_cqm_rssi_config)
6641 return -EOPNOTSUPP;
d6dc1a38 6642
074ac8df 6643 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6644 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6645 return -EOPNOTSUPP;
d6dc1a38 6646
e35e4d28 6647 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 6648}
6649
6650static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6651{
6652 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6653 struct nlattr *cqm;
6654 int err;
6655
6656 cqm = info->attrs[NL80211_ATTR_CQM];
6657 if (!cqm) {
6658 err = -EINVAL;
6659 goto out;
6660 }
6661
6662 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6663 nl80211_attr_cqm_policy);
6664 if (err)
6665 goto out;
6666
6667 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6668 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6669 s32 threshold;
6670 u32 hysteresis;
6671 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6672 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6673 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 6674 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6675 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6676 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6677 u32 rate, pkts, intvl;
6678 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6679 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6680 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6681 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 6682 } else
6683 err = -EINVAL;
6684
6685out:
6686 return err;
6687}
6688
29cbe68c
JB		 6689static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6690{
6691 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6692 struct net_device *dev = info->user_ptr[1];
6693 struct mesh_config cfg;
c80d545d 6694 struct mesh_setup setup;
29cbe68c
JB		 6695 int err;
6696
6697 /* start with default */
6698 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6699 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6700
24bdd9f4 6701 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6702 /* and parse parameters if given */
24bdd9f4 6703 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6704 if (err)
6705 return err;
6706 }
6707
6708 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6709 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6710 return -EINVAL;
6711
c80d545d
JC		 6712 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6713 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6714
4bb62344
CYY		 6715 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6716 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6717 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6718 return -EINVAL;
6719
9bdbf04d
MP		 6720 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6721 setup.beacon_interval =
6722 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6723 if (setup.beacon_interval < 10 ||
6724 setup.beacon_interval > 10000)
6725 return -EINVAL;
6726 }
6727
6728 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
6729 setup.dtim_period =
6730 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
6731 if (setup.dtim_period < 1 || setup.dtim_period > 100)
6732 return -EINVAL;
6733 }
6734
c80d545d
JC		 6735 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6736 /* parse additional setup parameters if given */
6737 err = nl80211_parse_mesh_setup(info, &setup);
6738 if (err)
6739 return err;
6740 }
6741
cc1d2806 6742 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 6743 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
6744 if (err)
6745 return err;
cc1d2806
JB		 6746 } else {
6747 /* cfg80211_join_mesh() will sort it out */
683b6d3b 6748 setup.chandef.chan = NULL;
cc1d2806
JB		 6749 }
6750
c80d545d 6751 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6752}
6753
6754static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6755{
6756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6757 struct net_device *dev = info->user_ptr[1];
6758
6759 return cfg80211_leave_mesh(rdev, dev);
6760}
6761
dfb89c56 6762#ifdef CONFIG_PM
ff1b6e69
JB		 6763static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6764{
6765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6766 struct sk_buff *msg;
6767 void *hdr;
6768
6769 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6770 return -EOPNOTSUPP;
6771
6772 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6773 if (!msg)
6774 return -ENOMEM;
6775
15e47304 6776 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 6777 NL80211_CMD_GET_WOWLAN);
6778 if (!hdr)
6779 goto nla_put_failure;
6780
6781 if (rdev->wowlan) {
6782 struct nlattr *nl_wowlan;
6783
6784 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6785 if (!nl_wowlan)
6786 goto nla_put_failure;
6787
9360ffd1
DM		 6788 if ((rdev->wowlan->any &&
6789 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6790 (rdev->wowlan->disconnect &&
6791 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6792 (rdev->wowlan->magic_pkt &&
6793 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6794 (rdev->wowlan->gtk_rekey_failure &&
6795 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6796 (rdev->wowlan->eap_identity_req &&
6797 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6798 (rdev->wowlan->four_way_handshake &&
6799 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6800 (rdev->wowlan->rfkill_release &&
6801 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6802 goto nla_put_failure;
ff1b6e69
JB		 6803 if (rdev->wowlan->n_patterns) {
6804 struct nlattr *nl_pats, *nl_pat;
6805 int i, pat_len;
6806
6807 nl_pats = nla_nest_start(msg,
6808 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6809 if (!nl_pats)
6810 goto nla_put_failure;
6811
6812 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6813 nl_pat = nla_nest_start(msg, i + 1);
6814 if (!nl_pat)
6815 goto nla_put_failure;
6816 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6817 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6818 DIV_ROUND_UP(pat_len, 8),
6819 rdev->wowlan->patterns[i].mask) ||
6820 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6821 pat_len,
6822 rdev->wowlan->patterns[i].pattern))
6823 goto nla_put_failure;
ff1b6e69
JB		 6824 nla_nest_end(msg, nl_pat);
6825 }
6826 nla_nest_end(msg, nl_pats);
6827 }
6828
6829 nla_nest_end(msg, nl_wowlan);
6830 }
6831
6832 genlmsg_end(msg, hdr);
6833 return genlmsg_reply(msg, info);
6834
6835nla_put_failure:
6836 nlmsg_free(msg);
6837 return -ENOBUFS;
6838}
6839
6840static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6841{
6842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6843 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 6844 struct cfg80211_wowlan new_triggers = {};
ae33bd81 6845 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 6846 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6847 int err, i;
6d52563f 6848 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6849
6850 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6851 return -EOPNOTSUPP;
6852
ae33bd81
JB		 6853 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6854 cfg80211_rdev_free_wowlan(rdev);
6855 rdev->wowlan = NULL;
6856 goto set_wakeup;
6857 }
ff1b6e69
JB		 6858
6859 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6860 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6861 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6862 nl80211_wowlan_policy);
6863 if (err)
6864 return err;
6865
6866 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6867 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6868 return -EINVAL;
6869 new_triggers.any = true;
6870 }
6871
6872 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6873 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6874 return -EINVAL;
6875 new_triggers.disconnect = true;
6876 }
6877
6878 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6879 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6880 return -EINVAL;
6881 new_triggers.magic_pkt = true;
6882 }
6883
77dbbb13
JB		 6884 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6885 return -EINVAL;
6886
6887 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6888 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6889 return -EINVAL;
6890 new_triggers.gtk_rekey_failure = true;
6891 }
6892
6893 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6894 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6895 return -EINVAL;
6896 new_triggers.eap_identity_req = true;
6897 }
6898
6899 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6900 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6901 return -EINVAL;
6902 new_triggers.four_way_handshake = true;
6903 }
6904
6905 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6906 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6907 return -EINVAL;
6908 new_triggers.rfkill_release = true;
6909 }
6910
ff1b6e69
JB		 6911 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6912 struct nlattr *pat;
6913 int n_patterns = 0;
6914 int rem, pat_len, mask_len;
6915 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6916
6917 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6918 rem)
6919 n_patterns++;
6920 if (n_patterns > wowlan->n_patterns)
6921 return -EINVAL;
6922
6923 new_triggers.patterns = kcalloc(n_patterns,
6924 sizeof(new_triggers.patterns[0]),
6925 GFP_KERNEL);
6926 if (!new_triggers.patterns)
6927 return -ENOMEM;
6928
6929 new_triggers.n_patterns = n_patterns;
6930 i = 0;
6931
6932 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6933 rem) {
6934 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6935 nla_data(pat), nla_len(pat), NULL);
6936 err = -EINVAL;
6937 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6938 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6939 goto error;
6940 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6941 mask_len = DIV_ROUND_UP(pat_len, 8);
6942 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6943 mask_len)
6944 goto error;
6945 if (pat_len > wowlan->pattern_max_len ||
6946 pat_len < wowlan->pattern_min_len)
6947 goto error;
6948
6949 new_triggers.patterns[i].mask =
6950 kmalloc(mask_len + pat_len, GFP_KERNEL);
6951 if (!new_triggers.patterns[i].mask) {
6952 err = -ENOMEM;
6953 goto error;
6954 }
6955 new_triggers.patterns[i].pattern =
6956 new_triggers.patterns[i].mask + mask_len;
6957 memcpy(new_triggers.patterns[i].mask,
6958 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6959 mask_len);
6960 new_triggers.patterns[i].pattern_len = pat_len;
6961 memcpy(new_triggers.patterns[i].pattern,
6962 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6963 pat_len);
6964 i++;
6965 }
6966 }
6967
ae33bd81
JB		 6968 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6969 if (!ntrig) {
6970 err = -ENOMEM;
6971 goto error;
ff1b6e69 6972 }
ae33bd81
JB		 6973 cfg80211_rdev_free_wowlan(rdev);
6974 rdev->wowlan = ntrig;
ff1b6e69 6975
ae33bd81 6976 set_wakeup:
6d52563f 6977 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 6978 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 6979
ff1b6e69
JB		 6980 return 0;
6981 error:
6982 for (i = 0; i < new_triggers.n_patterns; i++)
6983 kfree(new_triggers.patterns[i].mask);
6984 kfree(new_triggers.patterns);
6985 return err;
6986}
dfb89c56 6987#endif
ff1b6e69 6988
e5497d76
JB		 6989static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6990{
6991 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6992 struct net_device *dev = info->user_ptr[1];
6993 struct wireless_dev *wdev = dev->ieee80211_ptr;
6994 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6995 struct cfg80211_gtk_rekey_data rekey_data;
6996 int err;
6997
6998 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6999 return -EINVAL;
7000
7001 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7002 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7003 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7004 nl80211_rekey_policy);
7005 if (err)
7006 return err;
7007
7008 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7009 return -ERANGE;
7010 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7011 return -ERANGE;
7012 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7013 return -ERANGE;
7014
7015 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7016 NL80211_KEK_LEN);
7017 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7018 NL80211_KCK_LEN);
7019 memcpy(rekey_data.replay_ctr,
7020 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7021 NL80211_REPLAY_CTR_LEN);
7022
7023 wdev_lock(wdev);
7024 if (!wdev->current_bss) {
7025 err = -ENOTCONN;
7026 goto out;
7027 }
7028
7029 if (!rdev->ops->set_rekey_data) {
7030 err = -EOPNOTSUPP;
7031 goto out;
7032 }
7033
e35e4d28 7034 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 7035 out:
7036 wdev_unlock(wdev);
7037 return err;
7038}
7039
28946da7
JB		 7040static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7041 struct genl_info *info)
7042{
7043 struct net_device *dev = info->user_ptr[1];
7044 struct wireless_dev *wdev = dev->ieee80211_ptr;
7045
7046 if (wdev->iftype != NL80211_IFTYPE_AP &&
7047 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7048 return -EINVAL;
7049
15e47304 7050 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 7051 return -EBUSY;
7052
15e47304 7053 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 7054 return 0;
7055}
7056
7f6cf311
JB		 7057static int nl80211_probe_client(struct sk_buff *skb,
7058 struct genl_info *info)
7059{
7060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7061 struct net_device *dev = info->user_ptr[1];
7062 struct wireless_dev *wdev = dev->ieee80211_ptr;
7063 struct sk_buff *msg;
7064 void *hdr;
7065 const u8 *addr;
7066 u64 cookie;
7067 int err;
7068
7069 if (wdev->iftype != NL80211_IFTYPE_AP &&
7070 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7071 return -EOPNOTSUPP;
7072
7073 if (!info->attrs[NL80211_ATTR_MAC])
7074 return -EINVAL;
7075
7076 if (!rdev->ops->probe_client)
7077 return -EOPNOTSUPP;
7078
7079 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7080 if (!msg)
7081 return -ENOMEM;
7082
15e47304 7083 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 7084 NL80211_CMD_PROBE_CLIENT);
7085
7086 if (IS_ERR(hdr)) {
7087 err = PTR_ERR(hdr);
7088 goto free_msg;
7089 }
7090
7091 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7092
e35e4d28 7093 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 7094 if (err)
7095 goto free_msg;
7096
9360ffd1
DM		 7097 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7098 goto nla_put_failure;
7f6cf311
JB		 7099
7100 genlmsg_end(msg, hdr);
7101
7102 return genlmsg_reply(msg, info);
7103
7104 nla_put_failure:
7105 err = -ENOBUFS;
7106 free_msg:
7107 nlmsg_free(msg);
7108 return err;
7109}
7110
5e760230
JB		 7111static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7112{
7113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 7114 struct cfg80211_beacon_registration *reg, *nreg;
7115 int rv;
5e760230
JB		 7116
7117 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7118 return -EOPNOTSUPP;
7119
37c73b5f
BG		 7120 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7121 if (!nreg)
7122 return -ENOMEM;
7123
7124 /* First, check if already registered. */
7125 spin_lock_bh(&rdev->beacon_registrations_lock);
7126 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7127 if (reg->nlportid == info->snd_portid) {
7128 rv = -EALREADY;
7129 goto out_err;
7130 }
7131 }
7132 /* Add it to the list */
7133 nreg->nlportid = info->snd_portid;
7134 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 7135
37c73b5f 7136 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 7137
7138 return 0;
37c73b5f
BG		 7139out_err:
7140 spin_unlock_bh(&rdev->beacon_registrations_lock);
7141 kfree(nreg);
7142 return rv;
5e760230
JB		 7143}
7144
98104fde
JB		 7145static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7146{
7147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7148 struct wireless_dev *wdev = info->user_ptr[1];
7149 int err;
7150
7151 if (!rdev->ops->start_p2p_device)
7152 return -EOPNOTSUPP;
7153
7154 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7155 return -EOPNOTSUPP;
7156
7157 if (wdev->p2p_started)
7158 return 0;
7159
7160 mutex_lock(&rdev->devlist_mtx);
7161 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7162 mutex_unlock(&rdev->devlist_mtx);
7163 if (err)
7164 return err;
7165
eeb126e9 7166 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 7167 if (err)
7168 return err;
7169
7170 wdev->p2p_started = true;
7171 mutex_lock(&rdev->devlist_mtx);
7172 rdev->opencount++;
7173 mutex_unlock(&rdev->devlist_mtx);
7174
7175 return 0;
7176}
7177
7178static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7179{
7180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7181 struct wireless_dev *wdev = info->user_ptr[1];
7182
7183 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7184 return -EOPNOTSUPP;
7185
7186 if (!rdev->ops->stop_p2p_device)
7187 return -EOPNOTSUPP;
7188
7189 if (!wdev->p2p_started)
7190 return 0;
7191
eeb126e9 7192 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 7193 wdev->p2p_started = false;
7194
7195 mutex_lock(&rdev->devlist_mtx);
7196 rdev->opencount--;
7197 mutex_unlock(&rdev->devlist_mtx);
7198
7199 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7200 rdev->scan_req->aborted = true;
7201 ___cfg80211_scan_done(rdev, true);
7202 }
7203
7204 return 0;
7205}
7206
4c476991
JB		 7207#define NL80211_FLAG_NEED_WIPHY 0x01
7208#define NL80211_FLAG_NEED_NETDEV 0x02
7209#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 7210#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7211#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7212 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 7213#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 7214/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 7215#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7216 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 7217
7218static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7219 struct genl_info *info)
7220{
7221 struct cfg80211_registered_device *rdev;
89a54e48 7222 struct wireless_dev *wdev;
4c476991 7223 struct net_device *dev;
4c476991
JB		 7224 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7225
7226 if (rtnl)
7227 rtnl_lock();
7228
7229 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 7230 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 7231 if (IS_ERR(rdev)) {
7232 if (rtnl)
7233 rtnl_unlock();
7234 return PTR_ERR(rdev);
7235 }
7236 info->user_ptr[0] = rdev;
1bf614ef
JB		 7237 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7238 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7239 mutex_lock(&cfg80211_mutex);
7240 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7241 info->attrs);
7242 if (IS_ERR(wdev)) {
7243 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7244 if (rtnl)
7245 rtnl_unlock();
89a54e48 7246 return PTR_ERR(wdev);
4c476991 7247 }
89a54e48 7248
89a54e48
JB		 7249 dev = wdev->netdev;
7250 rdev = wiphy_to_dev(wdev->wiphy);
7251
1bf614ef
JB		 7252 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7253 if (!dev) {
7254 mutex_unlock(&cfg80211_mutex);
7255 if (rtnl)
7256 rtnl_unlock();
7257 return -EINVAL;
7258 }
7259
7260 info->user_ptr[1] = dev;
7261 } else {
7262 info->user_ptr[1] = wdev;
41265714 7263 }
1bf614ef
JB		 7264
7265 if (dev) {
7266 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7267 !netif_running(dev)) {
7268 mutex_unlock(&cfg80211_mutex);
7269 if (rtnl)
7270 rtnl_unlock();
7271 return -ENETDOWN;
7272 }
7273
7274 dev_hold(dev);
98104fde
JB		 7275 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7276 if (!wdev->p2p_started) {
7277 mutex_unlock(&cfg80211_mutex);
7278 if (rtnl)
7279 rtnl_unlock();
7280 return -ENETDOWN;
7281 }
41265714 7282 }
89a54e48 7283
89a54e48
JB		 7284 cfg80211_lock_rdev(rdev);
7285
7286 mutex_unlock(&cfg80211_mutex);
7287
4c476991 7288 info->user_ptr[0] = rdev;
4c476991
JB		 7289 }
7290
7291 return 0;
7292}
7293
7294static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7295 struct genl_info *info)
7296{
7297 if (info->user_ptr[0])
7298 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7299 if (info->user_ptr[1]) {
7300 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7301 struct wireless_dev *wdev = info->user_ptr[1];
7302
7303 if (wdev->netdev)
7304 dev_put(wdev->netdev);
7305 } else {
7306 dev_put(info->user_ptr[1]);
7307 }
7308 }
4c476991
JB		 7309 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7310 rtnl_unlock();
7311}
7312
55682965
JB		 7313static struct genl_ops nl80211_ops[] = {
7314 {
7315 .cmd = NL80211_CMD_GET_WIPHY,
7316 .doit = nl80211_get_wiphy,
7317 .dumpit = nl80211_dump_wiphy,
7318 .policy = nl80211_policy,
7319 /* can be retrieved by unprivileged users */
4c476991 7320 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7321 },
7322 {
7323 .cmd = NL80211_CMD_SET_WIPHY,
7324 .doit = nl80211_set_wiphy,
7325 .policy = nl80211_policy,
7326 .flags = GENL_ADMIN_PERM,
4c476991 7327 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7328 },
7329 {
7330 .cmd = NL80211_CMD_GET_INTERFACE,
7331 .doit = nl80211_get_interface,
7332 .dumpit = nl80211_dump_interface,
7333 .policy = nl80211_policy,
7334 /* can be retrieved by unprivileged users */
72fb2abc 7335 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7336 },
7337 {
7338 .cmd = NL80211_CMD_SET_INTERFACE,
7339 .doit = nl80211_set_interface,
7340 .policy = nl80211_policy,
7341 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7342 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7343 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7344 },
7345 {
7346 .cmd = NL80211_CMD_NEW_INTERFACE,
7347 .doit = nl80211_new_interface,
7348 .policy = nl80211_policy,
7349 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7350 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7351 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7352 },
7353 {
7354 .cmd = NL80211_CMD_DEL_INTERFACE,
7355 .doit = nl80211_del_interface,
7356 .policy = nl80211_policy,
41ade00f 7357 .flags = GENL_ADMIN_PERM,
84efbb84 7358 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7359 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7360 },
7361 {
7362 .cmd = NL80211_CMD_GET_KEY,
7363 .doit = nl80211_get_key,
7364 .policy = nl80211_policy,
7365 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7367 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7368 },
7369 {
7370 .cmd = NL80211_CMD_SET_KEY,
7371 .doit = nl80211_set_key,
7372 .policy = nl80211_policy,
7373 .flags = GENL_ADMIN_PERM,
41265714 7374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7375 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7376 },
7377 {
7378 .cmd = NL80211_CMD_NEW_KEY,
7379 .doit = nl80211_new_key,
7380 .policy = nl80211_policy,
7381 .flags = GENL_ADMIN_PERM,
41265714 7382 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7383 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7384 },
7385 {
7386 .cmd = NL80211_CMD_DEL_KEY,
7387 .doit = nl80211_del_key,
7388 .policy = nl80211_policy,
55682965 7389 .flags = GENL_ADMIN_PERM,
41265714 7390 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7391 NL80211_FLAG_NEED_RTNL,
55682965 7392 },
ed1b6cc7
JB		 7393 {
7394 .cmd = NL80211_CMD_SET_BEACON,
7395 .policy = nl80211_policy,
7396 .flags = GENL_ADMIN_PERM,
8860020e 7397 .doit = nl80211_set_beacon,
2b5f8b0b 7398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7399 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7400 },
7401 {
8860020e 7402 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7403 .policy = nl80211_policy,
7404 .flags = GENL_ADMIN_PERM,
8860020e 7405 .doit = nl80211_start_ap,
2b5f8b0b 7406 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7407 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7408 },
7409 {
8860020e 7410 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7411 .policy = nl80211_policy,
7412 .flags = GENL_ADMIN_PERM,
8860020e 7413 .doit = nl80211_stop_ap,
2b5f8b0b 7414 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7415 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7416 },
5727ef1b
JB		 7417 {
7418 .cmd = NL80211_CMD_GET_STATION,
7419 .doit = nl80211_get_station,
2ec600d6 7420 .dumpit = nl80211_dump_station,
5727ef1b 7421 .policy = nl80211_policy,
4c476991
JB		 7422 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7423 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7424 },
7425 {
7426 .cmd = NL80211_CMD_SET_STATION,
7427 .doit = nl80211_set_station,
7428 .policy = nl80211_policy,
7429 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7430 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7431 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7432 },
7433 {
7434 .cmd = NL80211_CMD_NEW_STATION,
7435 .doit = nl80211_new_station,
7436 .policy = nl80211_policy,
7437 .flags = GENL_ADMIN_PERM,
41265714 7438 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7439 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7440 },
7441 {
7442 .cmd = NL80211_CMD_DEL_STATION,
7443 .doit = nl80211_del_station,
7444 .policy = nl80211_policy,
2ec600d6 7445 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7446 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7447 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7448 },
7449 {
7450 .cmd = NL80211_CMD_GET_MPATH,
7451 .doit = nl80211_get_mpath,
7452 .dumpit = nl80211_dump_mpath,
7453 .policy = nl80211_policy,
7454 .flags = GENL_ADMIN_PERM,
41265714 7455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7456 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7457 },
7458 {
7459 .cmd = NL80211_CMD_SET_MPATH,
7460 .doit = nl80211_set_mpath,
7461 .policy = nl80211_policy,
7462 .flags = GENL_ADMIN_PERM,
41265714 7463 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7464 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7465 },
7466 {
7467 .cmd = NL80211_CMD_NEW_MPATH,
7468 .doit = nl80211_new_mpath,
7469 .policy = nl80211_policy,
7470 .flags = GENL_ADMIN_PERM,
41265714 7471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7472 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7473 },
7474 {
7475 .cmd = NL80211_CMD_DEL_MPATH,
7476 .doit = nl80211_del_mpath,
7477 .policy = nl80211_policy,
9f1ba906 7478 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7480 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 7481 },
7482 {
7483 .cmd = NL80211_CMD_SET_BSS,
7484 .doit = nl80211_set_bss,
7485 .policy = nl80211_policy,
b2e1b302 7486 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7487 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7488 NL80211_FLAG_NEED_RTNL,
b2e1b302 7489 },
f130347c
LR		 7490 {
7491 .cmd = NL80211_CMD_GET_REG,
7492 .doit = nl80211_get_reg,
7493 .policy = nl80211_policy,
7494 /* can be retrieved by unprivileged users */
7495 },
b2e1b302
LR		 7496 {
7497 .cmd = NL80211_CMD_SET_REG,
7498 .doit = nl80211_set_reg,
7499 .policy = nl80211_policy,
7500 .flags = GENL_ADMIN_PERM,
7501 },
7502 {
7503 .cmd = NL80211_CMD_REQ_SET_REG,
7504 .doit = nl80211_req_set_reg,
7505 .policy = nl80211_policy,
93da9cc1 7506 .flags = GENL_ADMIN_PERM,
7507 },
7508 {
24bdd9f4
JC		 7509 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7510 .doit = nl80211_get_mesh_config,
93da9cc1 7511 .policy = nl80211_policy,
7512 /* can be retrieved by unprivileged users */
2b5f8b0b 7513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7514 NL80211_FLAG_NEED_RTNL,
93da9cc1 7515 },
7516 {
24bdd9f4
JC		 7517 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7518 .doit = nl80211_update_mesh_config,
93da9cc1 7519 .policy = nl80211_policy,
9aed3cc1 7520 .flags = GENL_ADMIN_PERM,
29cbe68c 7521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7522 NL80211_FLAG_NEED_RTNL,
9aed3cc1 7523 },
2a519311
JB		 7524 {
7525 .cmd = NL80211_CMD_TRIGGER_SCAN,
7526 .doit = nl80211_trigger_scan,
7527 .policy = nl80211_policy,
7528 .flags = GENL_ADMIN_PERM,
fd014284 7529 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7530 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 7531 },
7532 {
7533 .cmd = NL80211_CMD_GET_SCAN,
7534 .policy = nl80211_policy,
7535 .dumpit = nl80211_dump_scan,
7536 },
807f8a8c
LC		 7537 {
7538 .cmd = NL80211_CMD_START_SCHED_SCAN,
7539 .doit = nl80211_start_sched_scan,
7540 .policy = nl80211_policy,
7541 .flags = GENL_ADMIN_PERM,
7542 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7543 NL80211_FLAG_NEED_RTNL,
7544 },
7545 {
7546 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7547 .doit = nl80211_stop_sched_scan,
7548 .policy = nl80211_policy,
7549 .flags = GENL_ADMIN_PERM,
7550 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7551 NL80211_FLAG_NEED_RTNL,
7552 },
636a5d36
JM		 7553 {
7554 .cmd = NL80211_CMD_AUTHENTICATE,
7555 .doit = nl80211_authenticate,
7556 .policy = nl80211_policy,
7557 .flags = GENL_ADMIN_PERM,
41265714 7558 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7559 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7560 },
7561 {
7562 .cmd = NL80211_CMD_ASSOCIATE,
7563 .doit = nl80211_associate,
7564 .policy = nl80211_policy,
7565 .flags = GENL_ADMIN_PERM,
41265714 7566 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7567 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7568 },
7569 {
7570 .cmd = NL80211_CMD_DEAUTHENTICATE,
7571 .doit = nl80211_deauthenticate,
7572 .policy = nl80211_policy,
7573 .flags = GENL_ADMIN_PERM,
41265714 7574 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7575 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7576 },
7577 {
7578 .cmd = NL80211_CMD_DISASSOCIATE,
7579 .doit = nl80211_disassociate,
7580 .policy = nl80211_policy,
7581 .flags = GENL_ADMIN_PERM,
41265714 7582 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7583 NL80211_FLAG_NEED_RTNL,
636a5d36 7584 },
04a773ad
JB		 7585 {
7586 .cmd = NL80211_CMD_JOIN_IBSS,
7587 .doit = nl80211_join_ibss,
7588 .policy = nl80211_policy,
7589 .flags = GENL_ADMIN_PERM,
41265714 7590 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7591 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 7592 },
7593 {
7594 .cmd = NL80211_CMD_LEAVE_IBSS,
7595 .doit = nl80211_leave_ibss,
7596 .policy = nl80211_policy,
7597 .flags = GENL_ADMIN_PERM,
41265714 7598 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7599 NL80211_FLAG_NEED_RTNL,
04a773ad 7600 },
aff89a9b
JB		 7601#ifdef CONFIG_NL80211_TESTMODE
7602 {
7603 .cmd = NL80211_CMD_TESTMODE,
7604 .doit = nl80211_testmode_do,
71063f0e 7605 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7606 .policy = nl80211_policy,
7607 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7608 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7609 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7610 },
7611#endif
b23aa676
SO		 7612 {
7613 .cmd = NL80211_CMD_CONNECT,
7614 .doit = nl80211_connect,
7615 .policy = nl80211_policy,
7616 .flags = GENL_ADMIN_PERM,
41265714 7617 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7618 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7619 },
7620 {
7621 .cmd = NL80211_CMD_DISCONNECT,
7622 .doit = nl80211_disconnect,
7623 .policy = nl80211_policy,
7624 .flags = GENL_ADMIN_PERM,
41265714 7625 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7626 NL80211_FLAG_NEED_RTNL,
b23aa676 7627 },
463d0183
JB		 7628 {
7629 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7630 .doit = nl80211_wiphy_netns,
7631 .policy = nl80211_policy,
7632 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7633 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7634 NL80211_FLAG_NEED_RTNL,
463d0183 7635 },
61fa713c
HS		 7636 {
7637 .cmd = NL80211_CMD_GET_SURVEY,
7638 .policy = nl80211_policy,
7639 .dumpit = nl80211_dump_survey,
7640 },
67fbb16b
SO		 7641 {
7642 .cmd = NL80211_CMD_SET_PMKSA,
7643 .doit = nl80211_setdel_pmksa,
7644 .policy = nl80211_policy,
7645 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7646 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7647 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7648 },
7649 {
7650 .cmd = NL80211_CMD_DEL_PMKSA,
7651 .doit = nl80211_setdel_pmksa,
7652 .policy = nl80211_policy,
7653 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7654 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7655 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7656 },
7657 {
7658 .cmd = NL80211_CMD_FLUSH_PMKSA,
7659 .doit = nl80211_flush_pmksa,
7660 .policy = nl80211_policy,
7661 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7662 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7663 NL80211_FLAG_NEED_RTNL,
67fbb16b 7664 },
9588bbd5
JM		 7665 {
7666 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7667 .doit = nl80211_remain_on_channel,
7668 .policy = nl80211_policy,
7669 .flags = GENL_ADMIN_PERM,
71bbc994 7670 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7671 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7672 },
7673 {
7674 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7675 .doit = nl80211_cancel_remain_on_channel,
7676 .policy = nl80211_policy,
7677 .flags = GENL_ADMIN_PERM,
71bbc994 7678 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7679 NL80211_FLAG_NEED_RTNL,
9588bbd5 7680 },
13ae75b1
JM		 7681 {
7682 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7683 .doit = nl80211_set_tx_bitrate_mask,
7684 .policy = nl80211_policy,
7685 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7686 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7687 NL80211_FLAG_NEED_RTNL,
13ae75b1 7688 },
026331c4 7689 {
2e161f78
JB		 7690 .cmd = NL80211_CMD_REGISTER_FRAME,
7691 .doit = nl80211_register_mgmt,
026331c4
JM		 7692 .policy = nl80211_policy,
7693 .flags = GENL_ADMIN_PERM,
71bbc994 7694 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7695 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7696 },
7697 {
2e161f78
JB		 7698 .cmd = NL80211_CMD_FRAME,
7699 .doit = nl80211_tx_mgmt,
026331c4 7700 .policy = nl80211_policy,
f7ca38df 7701 .flags = GENL_ADMIN_PERM,
71bbc994 7702 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 7703 NL80211_FLAG_NEED_RTNL,
7704 },
7705 {
7706 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7707 .doit = nl80211_tx_mgmt_cancel_wait,
7708 .policy = nl80211_policy,
026331c4 7709 .flags = GENL_ADMIN_PERM,
71bbc994 7710 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7711 NL80211_FLAG_NEED_RTNL,
026331c4 7712 },
ffb9eb3d
KV		 7713 {
7714 .cmd = NL80211_CMD_SET_POWER_SAVE,
7715 .doit = nl80211_set_power_save,
7716 .policy = nl80211_policy,
7717 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7718 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7719 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7720 },
7721 {
7722 .cmd = NL80211_CMD_GET_POWER_SAVE,
7723 .doit = nl80211_get_power_save,
7724 .policy = nl80211_policy,
7725 /* can be retrieved by unprivileged users */
4c476991
JB		 7726 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7727 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7728 },
d6dc1a38
JO		 7729 {
7730 .cmd = NL80211_CMD_SET_CQM,
7731 .doit = nl80211_set_cqm,
7732 .policy = nl80211_policy,
7733 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7734 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7735 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7736 },
f444de05
JB		 7737 {
7738 .cmd = NL80211_CMD_SET_CHANNEL,
7739 .doit = nl80211_set_channel,
7740 .policy = nl80211_policy,
7741 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7742 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7743 NL80211_FLAG_NEED_RTNL,
f444de05 7744 },
e8347eba
BJ		 7745 {
7746 .cmd = NL80211_CMD_SET_WDS_PEER,
7747 .doit = nl80211_set_wds_peer,
7748 .policy = nl80211_policy,
7749 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7750 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7751 NL80211_FLAG_NEED_RTNL,
e8347eba 7752 },
29cbe68c
JB		 7753 {
7754 .cmd = NL80211_CMD_JOIN_MESH,
7755 .doit = nl80211_join_mesh,
7756 .policy = nl80211_policy,
7757 .flags = GENL_ADMIN_PERM,
7758 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7759 NL80211_FLAG_NEED_RTNL,
7760 },
7761 {
7762 .cmd = NL80211_CMD_LEAVE_MESH,
7763 .doit = nl80211_leave_mesh,
7764 .policy = nl80211_policy,
7765 .flags = GENL_ADMIN_PERM,
7766 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7767 NL80211_FLAG_NEED_RTNL,
7768 },
dfb89c56 7769#ifdef CONFIG_PM
ff1b6e69
JB		 7770 {
7771 .cmd = NL80211_CMD_GET_WOWLAN,
7772 .doit = nl80211_get_wowlan,
7773 .policy = nl80211_policy,
7774 /* can be retrieved by unprivileged users */
7775 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7776 NL80211_FLAG_NEED_RTNL,
7777 },
7778 {
7779 .cmd = NL80211_CMD_SET_WOWLAN,
7780 .doit = nl80211_set_wowlan,
7781 .policy = nl80211_policy,
7782 .flags = GENL_ADMIN_PERM,
7783 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7784 NL80211_FLAG_NEED_RTNL,
7785 },
dfb89c56 7786#endif
e5497d76
JB		 7787 {
7788 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7789 .doit = nl80211_set_rekey_data,
7790 .policy = nl80211_policy,
7791 .flags = GENL_ADMIN_PERM,
7792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7793 NL80211_FLAG_NEED_RTNL,
7794 },
109086ce
AN		 7795 {
7796 .cmd = NL80211_CMD_TDLS_MGMT,
7797 .doit = nl80211_tdls_mgmt,
7798 .policy = nl80211_policy,
7799 .flags = GENL_ADMIN_PERM,
7800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7801 NL80211_FLAG_NEED_RTNL,
7802 },
7803 {
7804 .cmd = NL80211_CMD_TDLS_OPER,
7805 .doit = nl80211_tdls_oper,
7806 .policy = nl80211_policy,
7807 .flags = GENL_ADMIN_PERM,
7808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7809 NL80211_FLAG_NEED_RTNL,
7810 },
28946da7
JB		 7811 {
7812 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7813 .doit = nl80211_register_unexpected_frame,
7814 .policy = nl80211_policy,
7815 .flags = GENL_ADMIN_PERM,
7816 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7817 NL80211_FLAG_NEED_RTNL,
7818 },
7f6cf311
JB		 7819 {
7820 .cmd = NL80211_CMD_PROBE_CLIENT,
7821 .doit = nl80211_probe_client,
7822 .policy = nl80211_policy,
7823 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7824 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7825 NL80211_FLAG_NEED_RTNL,
7826 },
5e760230
JB		 7827 {
7828 .cmd = NL80211_CMD_REGISTER_BEACONS,
7829 .doit = nl80211_register_beacons,
7830 .policy = nl80211_policy,
7831 .flags = GENL_ADMIN_PERM,
7832 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7833 NL80211_FLAG_NEED_RTNL,
7834 },
1d9d9213
SW		 7835 {
7836 .cmd = NL80211_CMD_SET_NOACK_MAP,
7837 .doit = nl80211_set_noack_map,
7838 .policy = nl80211_policy,
7839 .flags = GENL_ADMIN_PERM,
7840 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7841 NL80211_FLAG_NEED_RTNL,
7842 },
98104fde
JB		 7843 {
7844 .cmd = NL80211_CMD_START_P2P_DEVICE,
7845 .doit = nl80211_start_p2p_device,
7846 .policy = nl80211_policy,
7847 .flags = GENL_ADMIN_PERM,
7848 .internal_flags = NL80211_FLAG_NEED_WDEV |
7849 NL80211_FLAG_NEED_RTNL,
7850 },
7851 {
7852 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7853 .doit = nl80211_stop_p2p_device,
7854 .policy = nl80211_policy,
7855 .flags = GENL_ADMIN_PERM,
7856 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7857 NL80211_FLAG_NEED_RTNL,
7858 },
f4e583c8
AQ		 7859 {
7860 .cmd = NL80211_CMD_SET_MCAST_RATE,
7861 .doit = nl80211_set_mcast_rate,
7862 .policy = nl80211_policy,
7863 .flags = GENL_ADMIN_PERM,
7864 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7865 NL80211_FLAG_NEED_RTNL,
7866 },
55682965 7867};
9588bbd5 7868
6039f6d2
JM		 7869static struct genl_multicast_group nl80211_mlme_mcgrp = {
7870 .name = "mlme",
7871};
55682965
JB		 7872
7873/* multicast groups */
7874static struct genl_multicast_group nl80211_config_mcgrp = {
7875 .name = "config",
7876};
2a519311
JB		 7877static struct genl_multicast_group nl80211_scan_mcgrp = {
7878 .name = "scan",
7879};
73d54c9e
LR		 7880static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7881 .name = "regulatory",
7882};
55682965
JB		 7883
7884/* notification functions */
7885
7886void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7887{
7888 struct sk_buff *msg;
7889
fd2120ca 7890 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7891 if (!msg)
7892 return;
7893
7894 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7895 nlmsg_free(msg);
7896 return;
7897 }
7898
463d0183
JB		 7899 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7900 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7901}
7902
362a415d
JB		 7903static int nl80211_add_scan_req(struct sk_buff *msg,
7904 struct cfg80211_registered_device *rdev)
7905{
7906 struct cfg80211_scan_request *req = rdev->scan_req;
7907 struct nlattr *nest;
7908 int i;
7909
667503dd
JB		 7910 ASSERT_RDEV_LOCK(rdev);
7911
362a415d
JB		 7912 if (WARN_ON(!req))
7913 return 0;
7914
7915 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7916 if (!nest)
7917 goto nla_put_failure;
9360ffd1
DM		 7918 for (i = 0; i < req->n_ssids; i++) {
7919 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7920 goto nla_put_failure;
7921 }
362a415d
JB		 7922 nla_nest_end(msg, nest);
7923
7924 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7925 if (!nest)
7926 goto nla_put_failure;
9360ffd1
DM		 7927 for (i = 0; i < req->n_channels; i++) {
7928 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7929 goto nla_put_failure;
7930 }
362a415d
JB		 7931 nla_nest_end(msg, nest);
7932
9360ffd1
DM		 7933 if (req->ie &&
7934 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7935 goto nla_put_failure;
362a415d 7936
ed473771
SL		 7937 if (req->flags)
7938 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7939
362a415d
JB		 7940 return 0;
7941 nla_put_failure:
7942 return -ENOBUFS;
7943}
7944
a538e2d5
JB		 7945static int nl80211_send_scan_msg(struct sk_buff *msg,
7946 struct cfg80211_registered_device *rdev,
fd014284 7947 struct wireless_dev *wdev,
15e47304 7948 u32 portid, u32 seq, int flags,
a538e2d5 7949 u32 cmd)
2a519311
JB		 7950{
7951 void *hdr;
7952
15e47304 7953 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 7954 if (!hdr)
7955 return -1;
7956
9360ffd1 7957 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 7958 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7959 wdev->netdev->ifindex)) ||
7960 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 7961 goto nla_put_failure;
2a519311 7962
362a415d
JB		 7963 /* ignore errors and send incomplete event anyway */
7964 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7965
7966 return genlmsg_end(msg, hdr);
7967
7968 nla_put_failure:
7969 genlmsg_cancel(msg, hdr);
7970 return -EMSGSIZE;
7971}
7972
807f8a8c
LC		 7973static int
7974nl80211_send_sched_scan_msg(struct sk_buff *msg,
7975 struct cfg80211_registered_device *rdev,
7976 struct net_device *netdev,
15e47304 7977 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 7978{
7979 void *hdr;
7980
15e47304 7981 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 7982 if (!hdr)
7983 return -1;
7984
9360ffd1
DM		 7985 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7986 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7987 goto nla_put_failure;
807f8a8c
LC		 7988
7989 return genlmsg_end(msg, hdr);
7990
7991 nla_put_failure:
7992 genlmsg_cancel(msg, hdr);
7993 return -EMSGSIZE;
7994}
7995
a538e2d5 7996void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 7997 struct wireless_dev *wdev)
a538e2d5
JB		 7998{
7999 struct sk_buff *msg;
8000
58050fce 8001 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 8002 if (!msg)
8003 return;
8004
fd014284 8005 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 8006 NL80211_CMD_TRIGGER_SCAN) < 0) {
8007 nlmsg_free(msg);
8008 return;
8009 }
8010
463d0183
JB		 8011 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8012 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 8013}
8014
2a519311 8015void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 8016 struct wireless_dev *wdev)
2a519311
JB		 8017{
8018 struct sk_buff *msg;
8019
fd2120ca 8020 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8021 if (!msg)
8022 return;
8023
fd014284 8024 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8025 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 8026 nlmsg_free(msg);
8027 return;
8028 }
8029
463d0183
JB		 8030 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8031 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8032}
8033
8034void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 8035 struct wireless_dev *wdev)
2a519311
JB		 8036{
8037 struct sk_buff *msg;
8038
fd2120ca 8039 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8040 if (!msg)
8041 return;
8042
fd014284 8043 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8044 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 8045 nlmsg_free(msg);
8046 return;
8047 }
8048
463d0183
JB		 8049 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8050 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8051}
8052
807f8a8c
LC		 8053void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8054 struct net_device *netdev)
8055{
8056 struct sk_buff *msg;
8057
8058 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8059 if (!msg)
8060 return;
8061
8062 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8063 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8064 nlmsg_free(msg);
8065 return;
8066 }
8067
8068 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8069 nl80211_scan_mcgrp.id, GFP_KERNEL);
8070}
8071
8072void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8073 struct net_device *netdev, u32 cmd)
8074{
8075 struct sk_buff *msg;
8076
58050fce 8077 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 8078 if (!msg)
8079 return;
8080
8081 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8082 nlmsg_free(msg);
8083 return;
8084 }
8085
8086 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8087 nl80211_scan_mcgrp.id, GFP_KERNEL);
8088}
8089
73d54c9e
LR		 8090/*
8091 * This can happen on global regulatory changes or device specific settings
8092 * based on custom world regulatory domains.
8093 */
8094void nl80211_send_reg_change_event(struct regulatory_request *request)
8095{
8096 struct sk_buff *msg;
8097 void *hdr;
8098
fd2120ca 8099 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 8100 if (!msg)
8101 return;
8102
8103 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8104 if (!hdr) {
8105 nlmsg_free(msg);
8106 return;
8107 }
8108
8109 /* Userspace can always count this one always being set */
9360ffd1
DM		 8110 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8111 goto nla_put_failure;
8112
8113 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8114 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8115 NL80211_REGDOM_TYPE_WORLD))
8116 goto nla_put_failure;
8117 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8118 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8119 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8120 goto nla_put_failure;
8121 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8122 request->intersect) {
8123 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8124 NL80211_REGDOM_TYPE_INTERSECTION))
8125 goto nla_put_failure;
8126 } else {
8127 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8128 NL80211_REGDOM_TYPE_COUNTRY) ||
8129 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8130 request->alpha2))
8131 goto nla_put_failure;
8132 }
8133
f4173766 8134 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 8135 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8136 goto nla_put_failure;
73d54c9e 8137
3b7b72ee 8138 genlmsg_end(msg, hdr);
73d54c9e 8139
bc43b28c 8140 rcu_read_lock();
463d0183 8141 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 8142 GFP_ATOMIC);
8143 rcu_read_unlock();
73d54c9e
LR		 8144
8145 return;
8146
8147nla_put_failure:
8148 genlmsg_cancel(msg, hdr);
8149 nlmsg_free(msg);
8150}
8151
6039f6d2
JM		 8152static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8153 struct net_device *netdev,
8154 const u8 *buf, size_t len,
e6d6e342 8155 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 8156{
8157 struct sk_buff *msg;
8158 void *hdr;
8159
e6d6e342 8160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 8161 if (!msg)
8162 return;
8163
8164 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8165 if (!hdr) {
8166 nlmsg_free(msg);
8167 return;
8168 }
8169
9360ffd1
DM		 8170 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8171 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8172 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8173 goto nla_put_failure;
6039f6d2 8174
3b7b72ee 8175 genlmsg_end(msg, hdr);
6039f6d2 8176
463d0183
JB		 8177 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8178 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 8179 return;
8180
8181 nla_put_failure:
8182 genlmsg_cancel(msg, hdr);
8183 nlmsg_free(msg);
8184}
8185
8186void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8187 struct net_device *netdev, const u8 *buf,
8188 size_t len, gfp_t gfp)
6039f6d2
JM		 8189{
8190 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8191 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 8192}
8193
8194void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8195 struct net_device *netdev, const u8 *buf,
e6d6e342 8196 size_t len, gfp_t gfp)
6039f6d2 8197{
e6d6e342
JB		 8198 nl80211_send_mlme_event(rdev, netdev, buf, len,
8199 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 8200}
8201
53b46b84 8202void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8203 struct net_device *netdev, const u8 *buf,
8204 size_t len, gfp_t gfp)
6039f6d2
JM		 8205{
8206 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8207 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 8208}
8209
53b46b84
JM		 8210void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8211 struct net_device *netdev, const u8 *buf,
e6d6e342 8212 size_t len, gfp_t gfp)
6039f6d2
JM		 8213{
8214 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8215 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 8216}
8217
cf4e594e
JM		 8218void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8219 struct net_device *netdev, const u8 *buf,
8220 size_t len, gfp_t gfp)
8221{
8222 nl80211_send_mlme_event(rdev, netdev, buf, len,
8223 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8224}
8225
8226void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8227 struct net_device *netdev, const u8 *buf,
8228 size_t len, gfp_t gfp)
8229{
8230 nl80211_send_mlme_event(rdev, netdev, buf, len,
8231 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8232}
8233
1b06bb40
LR		 8234static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8235 struct net_device *netdev, int cmd,
e6d6e342 8236 const u8 *addr, gfp_t gfp)
1965c853
JM		 8237{
8238 struct sk_buff *msg;
8239 void *hdr;
8240
e6d6e342 8241 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 8242 if (!msg)
8243 return;
8244
8245 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8246 if (!hdr) {
8247 nlmsg_free(msg);
8248 return;
8249 }
8250
9360ffd1
DM		 8251 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8252 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8253 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8254 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8255 goto nla_put_failure;
1965c853 8256
3b7b72ee 8257 genlmsg_end(msg, hdr);
1965c853 8258
463d0183
JB		 8259 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8260 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8261 return;
8262
8263 nla_put_failure:
8264 genlmsg_cancel(msg, hdr);
8265 nlmsg_free(msg);
8266}
8267
8268void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8269 struct net_device *netdev, const u8 *addr,
8270 gfp_t gfp)
1965c853
JM		 8271{
8272 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8273 addr, gfp);
1965c853
JM		 8274}
8275
8276void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8277 struct net_device *netdev, const u8 *addr,
8278 gfp_t gfp)
1965c853 8279{
e6d6e342
JB		 8280 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8281 addr, gfp);
1965c853
JM		 8282}
8283
b23aa676
SO		 8284void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8285 struct net_device *netdev, const u8 *bssid,
8286 const u8 *req_ie, size_t req_ie_len,
8287 const u8 *resp_ie, size_t resp_ie_len,
8288 u16 status, gfp_t gfp)
8289{
8290 struct sk_buff *msg;
8291 void *hdr;
8292
58050fce 8293 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8294 if (!msg)
8295 return;
8296
8297 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8298 if (!hdr) {
8299 nlmsg_free(msg);
8300 return;
8301 }
8302
9360ffd1
DM		 8303 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8304 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8305 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8306 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8307 (req_ie &&
8308 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8309 (resp_ie &&
8310 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8311 goto nla_put_failure;
b23aa676 8312
3b7b72ee 8313 genlmsg_end(msg, hdr);
b23aa676 8314
463d0183
JB		 8315 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8316 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8317 return;
8318
8319 nla_put_failure:
8320 genlmsg_cancel(msg, hdr);
8321 nlmsg_free(msg);
8322
8323}
8324
8325void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8326 struct net_device *netdev, const u8 *bssid,
8327 const u8 *req_ie, size_t req_ie_len,
8328 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8329{
8330 struct sk_buff *msg;
8331 void *hdr;
8332
58050fce 8333 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8334 if (!msg)
8335 return;
8336
8337 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8338 if (!hdr) {
8339 nlmsg_free(msg);
8340 return;
8341 }
8342
9360ffd1
DM		 8343 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8344 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8345 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8346 (req_ie &&
8347 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8348 (resp_ie &&
8349 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8350 goto nla_put_failure;
b23aa676 8351
3b7b72ee 8352 genlmsg_end(msg, hdr);
b23aa676 8353
463d0183
JB		 8354 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8355 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8356 return;
8357
8358 nla_put_failure:
8359 genlmsg_cancel(msg, hdr);
8360 nlmsg_free(msg);
8361
8362}
8363
8364void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8365 struct net_device *netdev, u16 reason,
667503dd 8366 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8367{
8368 struct sk_buff *msg;
8369 void *hdr;
8370
58050fce 8371 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8372 if (!msg)
8373 return;
8374
8375 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8376 if (!hdr) {
8377 nlmsg_free(msg);
8378 return;
8379 }
8380
9360ffd1
DM		 8381 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8382 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8383 (from_ap && reason &&
8384 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8385 (from_ap &&
8386 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8387 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8388 goto nla_put_failure;
b23aa676 8389
3b7b72ee 8390 genlmsg_end(msg, hdr);
b23aa676 8391
463d0183
JB		 8392 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8393 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8394 return;
8395
8396 nla_put_failure:
8397 genlmsg_cancel(msg, hdr);
8398 nlmsg_free(msg);
8399
8400}
8401
04a773ad
JB		 8402void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8403 struct net_device *netdev, const u8 *bssid,
8404 gfp_t gfp)
8405{
8406 struct sk_buff *msg;
8407 void *hdr;
8408
fd2120ca 8409 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 8410 if (!msg)
8411 return;
8412
8413 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8414 if (!hdr) {
8415 nlmsg_free(msg);
8416 return;
8417 }
8418
9360ffd1
DM		 8419 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8420 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8421 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8422 goto nla_put_failure;
04a773ad 8423
3b7b72ee 8424 genlmsg_end(msg, hdr);
04a773ad 8425
463d0183
JB		 8426 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8427 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 8428 return;
8429
8430 nla_put_failure:
8431 genlmsg_cancel(msg, hdr);
8432 nlmsg_free(msg);
8433}
8434
c93b5e71
JC		 8435void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8436 struct net_device *netdev,
8437 const u8 *macaddr, const u8* ie, u8 ie_len,
8438 gfp_t gfp)
8439{
8440 struct sk_buff *msg;
8441 void *hdr;
8442
8443 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8444 if (!msg)
8445 return;
8446
8447 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8448 if (!hdr) {
8449 nlmsg_free(msg);
8450 return;
8451 }
8452
9360ffd1
DM		 8453 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8454 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8455 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8456 (ie_len && ie &&
8457 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8458 goto nla_put_failure;
c93b5e71 8459
3b7b72ee 8460 genlmsg_end(msg, hdr);
c93b5e71
JC		 8461
8462 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8463 nl80211_mlme_mcgrp.id, gfp);
8464 return;
8465
8466 nla_put_failure:
8467 genlmsg_cancel(msg, hdr);
8468 nlmsg_free(msg);
8469}
8470
a3b8b056
JM		 8471void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8472 struct net_device *netdev, const u8 *addr,
8473 enum nl80211_key_type key_type, int key_id,
e6d6e342 8474 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 8475{
8476 struct sk_buff *msg;
8477 void *hdr;
8478
e6d6e342 8479 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 8480 if (!msg)
8481 return;
8482
8483 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8484 if (!hdr) {
8485 nlmsg_free(msg);
8486 return;
8487 }
8488
9360ffd1
DM		 8489 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8490 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8491 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8492 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8493 (key_id != -1 &&
8494 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8495 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8496 goto nla_put_failure;
a3b8b056 8497
3b7b72ee 8498 genlmsg_end(msg, hdr);
a3b8b056 8499
463d0183
JB		 8500 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8501 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 8502 return;
8503
8504 nla_put_failure:
8505 genlmsg_cancel(msg, hdr);
8506 nlmsg_free(msg);
8507}
8508
6bad8766
LR		 8509void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8510 struct ieee80211_channel *channel_before,
8511 struct ieee80211_channel *channel_after)
8512{
8513 struct sk_buff *msg;
8514 void *hdr;
8515 struct nlattr *nl_freq;
8516
fd2120ca 8517 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 8518 if (!msg)
8519 return;
8520
8521 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8522 if (!hdr) {
8523 nlmsg_free(msg);
8524 return;
8525 }
8526
8527 /*
8528 * Since we are applying the beacon hint to a wiphy we know its
8529 * wiphy_idx is valid
8530 */
9360ffd1
DM		 8531 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8532 goto nla_put_failure;
6bad8766
LR		 8533
8534 /* Before */
8535 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8536 if (!nl_freq)
8537 goto nla_put_failure;
8538 if (nl80211_msg_put_channel(msg, channel_before))
8539 goto nla_put_failure;
8540 nla_nest_end(msg, nl_freq);
8541
8542 /* After */
8543 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8544 if (!nl_freq)
8545 goto nla_put_failure;
8546 if (nl80211_msg_put_channel(msg, channel_after))
8547 goto nla_put_failure;
8548 nla_nest_end(msg, nl_freq);
8549
3b7b72ee 8550 genlmsg_end(msg, hdr);
6bad8766 8551
463d0183
JB		 8552 rcu_read_lock();
8553 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8554 GFP_ATOMIC);
8555 rcu_read_unlock();
6bad8766
LR		 8556
8557 return;
8558
8559nla_put_failure:
8560 genlmsg_cancel(msg, hdr);
8561 nlmsg_free(msg);
8562}
8563
9588bbd5
JM		 8564static void nl80211_send_remain_on_chan_event(
8565 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 8566 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8567 struct ieee80211_channel *chan,
9588bbd5
JM		 8568 unsigned int duration, gfp_t gfp)
8569{
8570 struct sk_buff *msg;
8571 void *hdr;
8572
8573 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8574 if (!msg)
8575 return;
8576
8577 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8578 if (!hdr) {
8579 nlmsg_free(msg);
8580 return;
8581 }
8582
9360ffd1 8583 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8584 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8585 wdev->netdev->ifindex)) ||
00f53350 8586 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 8587 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 8588 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
8589 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 8590 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8591 goto nla_put_failure;
9588bbd5 8592
9360ffd1
DM		 8593 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8594 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8595 goto nla_put_failure;
9588bbd5 8596
3b7b72ee 8597 genlmsg_end(msg, hdr);
9588bbd5
JM		 8598
8599 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8600 nl80211_mlme_mcgrp.id, gfp);
8601 return;
8602
8603 nla_put_failure:
8604 genlmsg_cancel(msg, hdr);
8605 nlmsg_free(msg);
8606}
8607
8608void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 8609 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8610 struct ieee80211_channel *chan,
9588bbd5
JM		 8611 unsigned int duration, gfp_t gfp)
8612{
8613 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 8614 rdev, wdev, cookie, chan,
42d97a59 8615 duration, gfp);
9588bbd5
JM		 8616}
8617
8618void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 8619 struct cfg80211_registered_device *rdev,
8620 struct wireless_dev *wdev,
42d97a59 8621 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9588bbd5
JM		 8622{
8623 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 8624 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5
JM		 8625}
8626
98b62183
JB		 8627void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8628 struct net_device *dev, const u8 *mac_addr,
8629 struct station_info *sinfo, gfp_t gfp)
8630{
8631 struct sk_buff *msg;
8632
58050fce 8633 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 8634 if (!msg)
8635 return;
8636
66266b3a
JL		 8637 if (nl80211_send_station(msg, 0, 0, 0,
8638 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8639 nlmsg_free(msg);
8640 return;
8641 }
8642
8643 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8644 nl80211_mlme_mcgrp.id, gfp);
8645}
8646
ec15e68b
JM		 8647void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8648 struct net_device *dev, const u8 *mac_addr,
8649 gfp_t gfp)
8650{
8651 struct sk_buff *msg;
8652 void *hdr;
8653
58050fce 8654 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 8655 if (!msg)
8656 return;
8657
8658 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8659 if (!hdr) {
8660 nlmsg_free(msg);
8661 return;
8662 }
8663
9360ffd1
DM		 8664 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8665 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8666 goto nla_put_failure;
ec15e68b 8667
3b7b72ee 8668 genlmsg_end(msg, hdr);
ec15e68b
JM		 8669
8670 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8671 nl80211_mlme_mcgrp.id, gfp);
8672 return;
8673
8674 nla_put_failure:
8675 genlmsg_cancel(msg, hdr);
8676 nlmsg_free(msg);
8677}
8678
ed44a951
PP		 8679void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8680 struct net_device *dev, const u8 *mac_addr,
8681 enum nl80211_connect_failed_reason reason,
8682 gfp_t gfp)
8683{
8684 struct sk_buff *msg;
8685 void *hdr;
8686
8687 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8688 if (!msg)
8689 return;
8690
8691 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8692 if (!hdr) {
8693 nlmsg_free(msg);
8694 return;
8695 }
8696
8697 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8698 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8699 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8700 goto nla_put_failure;
8701
8702 genlmsg_end(msg, hdr);
8703
8704 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8705 nl80211_mlme_mcgrp.id, gfp);
8706 return;
8707
8708 nla_put_failure:
8709 genlmsg_cancel(msg, hdr);
8710 nlmsg_free(msg);
8711}
8712
b92ab5d8
JB		 8713static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8714 const u8 *addr, gfp_t gfp)
28946da7
JB		 8715{
8716 struct wireless_dev *wdev = dev->ieee80211_ptr;
8717 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8718 struct sk_buff *msg;
8719 void *hdr;
8720 int err;
15e47304 8721 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 8722
15e47304 8723 if (!nlportid)
28946da7
JB		 8724 return false;
8725
8726 msg = nlmsg_new(100, gfp);
8727 if (!msg)
8728 return true;
8729
b92ab5d8 8730 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8731 if (!hdr) {
8732 nlmsg_free(msg);
8733 return true;
8734 }
8735
9360ffd1
DM		 8736 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8737 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8738 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8739 goto nla_put_failure;
28946da7
JB		 8740
8741 err = genlmsg_end(msg, hdr);
8742 if (err < 0) {
8743 nlmsg_free(msg);
8744 return true;
8745 }
8746
15e47304 8747 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 8748 return true;
8749
8750 nla_put_failure:
8751 genlmsg_cancel(msg, hdr);
8752 nlmsg_free(msg);
8753 return true;
8754}
8755
b92ab5d8
JB		 8756bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8757{
8758 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8759 addr, gfp);
8760}
8761
8762bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8763 const u8 *addr, gfp_t gfp)
8764{
8765 return __nl80211_unexpected_frame(dev,
8766 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8767 addr, gfp);
8768}
8769
2e161f78 8770int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 8771 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 8772 int freq, int sig_dbm,
8773 const u8 *buf, size_t len, gfp_t gfp)
026331c4 8774{
71bbc994 8775 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8776 struct sk_buff *msg;
8777 void *hdr;
026331c4
JM		 8778
8779 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8780 if (!msg)
8781 return -ENOMEM;
8782
2e161f78 8783 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8784 if (!hdr) {
8785 nlmsg_free(msg);
8786 return -ENOMEM;
8787 }
8788
9360ffd1 8789 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8790 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8791 netdev->ifindex)) ||
9360ffd1
DM		 8792 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8793 (sig_dbm &&
8794 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8795 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8796 goto nla_put_failure;
026331c4 8797
3b7b72ee 8798 genlmsg_end(msg, hdr);
026331c4 8799
15e47304 8800 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 8801
8802 nla_put_failure:
8803 genlmsg_cancel(msg, hdr);
8804 nlmsg_free(msg);
8805 return -ENOBUFS;
8806}
8807
2e161f78 8808void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 8809 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 8810 const u8 *buf, size_t len, bool ack,
8811 gfp_t gfp)
026331c4 8812{
71bbc994 8813 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8814 struct sk_buff *msg;
8815 void *hdr;
8816
8817 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8818 if (!msg)
8819 return;
8820
2e161f78 8821 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8822 if (!hdr) {
8823 nlmsg_free(msg);
8824 return;
8825 }
8826
9360ffd1 8827 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8828 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8829 netdev->ifindex)) ||
9360ffd1
DM		 8830 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8831 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8832 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8833 goto nla_put_failure;
026331c4 8834
3b7b72ee 8835 genlmsg_end(msg, hdr);
026331c4
JM		 8836
8837 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8838 return;
8839
8840 nla_put_failure:
8841 genlmsg_cancel(msg, hdr);
8842 nlmsg_free(msg);
8843}
8844
d6dc1a38
JO		 8845void
8846nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8847 struct net_device *netdev,
8848 enum nl80211_cqm_rssi_threshold_event rssi_event,
8849 gfp_t gfp)
8850{
8851 struct sk_buff *msg;
8852 struct nlattr *pinfoattr;
8853 void *hdr;
8854
58050fce 8855 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 8856 if (!msg)
8857 return;
8858
8859 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8860 if (!hdr) {
8861 nlmsg_free(msg);
8862 return;
8863 }
8864
9360ffd1
DM		 8865 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8866 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8867 goto nla_put_failure;
d6dc1a38
JO		 8868
8869 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8870 if (!pinfoattr)
8871 goto nla_put_failure;
8872
9360ffd1
DM		 8873 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8874 rssi_event))
8875 goto nla_put_failure;
d6dc1a38
JO		 8876
8877 nla_nest_end(msg, pinfoattr);
8878
3b7b72ee 8879 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8880
8881 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8882 nl80211_mlme_mcgrp.id, gfp);
8883 return;
8884
8885 nla_put_failure:
8886 genlmsg_cancel(msg, hdr);
8887 nlmsg_free(msg);
8888}
8889
e5497d76
JB		 8890void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8891 struct net_device *netdev, const u8 *bssid,
8892 const u8 *replay_ctr, gfp_t gfp)
8893{
8894 struct sk_buff *msg;
8895 struct nlattr *rekey_attr;
8896 void *hdr;
8897
58050fce 8898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 8899 if (!msg)
8900 return;
8901
8902 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8903 if (!hdr) {
8904 nlmsg_free(msg);
8905 return;
8906 }
8907
9360ffd1
DM		 8908 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8909 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8910 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8911 goto nla_put_failure;
e5497d76
JB		 8912
8913 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8914 if (!rekey_attr)
8915 goto nla_put_failure;
8916
9360ffd1
DM		 8917 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8918 NL80211_REPLAY_CTR_LEN, replay_ctr))
8919 goto nla_put_failure;
e5497d76
JB		 8920
8921 nla_nest_end(msg, rekey_attr);
8922
3b7b72ee 8923 genlmsg_end(msg, hdr);
e5497d76
JB		 8924
8925 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8926 nl80211_mlme_mcgrp.id, gfp);
8927 return;
8928
8929 nla_put_failure:
8930 genlmsg_cancel(msg, hdr);
8931 nlmsg_free(msg);
8932}
8933
c9df56b4
JM		 8934void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8935 struct net_device *netdev, int index,
8936 const u8 *bssid, bool preauth, gfp_t gfp)
8937{
8938 struct sk_buff *msg;
8939 struct nlattr *attr;
8940 void *hdr;
8941
58050fce 8942 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 8943 if (!msg)
8944 return;
8945
8946 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8947 if (!hdr) {
8948 nlmsg_free(msg);
8949 return;
8950 }
8951
9360ffd1
DM		 8952 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8953 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8954 goto nla_put_failure;
c9df56b4
JM		 8955
8956 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8957 if (!attr)
8958 goto nla_put_failure;
8959
9360ffd1
DM		 8960 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8961 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8962 (preauth &&
8963 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8964 goto nla_put_failure;
c9df56b4
JM		 8965
8966 nla_nest_end(msg, attr);
8967
3b7b72ee 8968 genlmsg_end(msg, hdr);
c9df56b4
JM		 8969
8970 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8971 nl80211_mlme_mcgrp.id, gfp);
8972 return;
8973
8974 nla_put_failure:
8975 genlmsg_cancel(msg, hdr);
8976 nlmsg_free(msg);
8977}
8978
5314526b 8979void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
683b6d3b
JB		 8980 struct net_device *netdev,
8981 struct cfg80211_chan_def *chandef, gfp_t gfp)
5314526b
TP		 8982{
8983 struct sk_buff *msg;
8984 void *hdr;
8985
58050fce 8986 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 8987 if (!msg)
8988 return;
8989
8990 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8991 if (!hdr) {
8992 nlmsg_free(msg);
8993 return;
8994 }
8995
683b6d3b
JB		 8996 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8997 goto nla_put_failure;
8998
8999 if (nl80211_send_chandef(msg, chandef))
7eab0f64 9000 goto nla_put_failure;
5314526b
TP		 9001
9002 genlmsg_end(msg, hdr);
9003
9004 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9005 nl80211_mlme_mcgrp.id, gfp);
9006 return;
9007
9008 nla_put_failure:
9009 genlmsg_cancel(msg, hdr);
9010 nlmsg_free(msg);
9011}
9012
84f10708
TP		 9013void
9014nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9015 struct net_device *netdev, const u8 *peer,
9016 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9017{
9018 struct sk_buff *msg;
9019 struct nlattr *pinfoattr;
9020 void *hdr;
9021
9022 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9023 if (!msg)
9024 return;
9025
9026 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9027 if (!hdr) {
9028 nlmsg_free(msg);
9029 return;
9030 }
9031
9032 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9033 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9034 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9035 goto nla_put_failure;
9036
9037 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9038 if (!pinfoattr)
9039 goto nla_put_failure;
9040
9041 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9042 goto nla_put_failure;
9043
9044 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9045 goto nla_put_failure;
9046
9047 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9048 goto nla_put_failure;
9049
9050 nla_nest_end(msg, pinfoattr);
9051
9052 genlmsg_end(msg, hdr);
9053
9054 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9055 nl80211_mlme_mcgrp.id, gfp);
9056 return;
9057
9058 nla_put_failure:
9059 genlmsg_cancel(msg, hdr);
9060 nlmsg_free(msg);
9061}
9062
c063dbf5
JB		 9063void
9064nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9065 struct net_device *netdev, const u8 *peer,
9066 u32 num_packets, gfp_t gfp)
9067{
9068 struct sk_buff *msg;
9069 struct nlattr *pinfoattr;
9070 void *hdr;
9071
58050fce 9072 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 9073 if (!msg)
9074 return;
9075
9076 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9077 if (!hdr) {
9078 nlmsg_free(msg);
9079 return;
9080 }
9081
9360ffd1
DM		 9082 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9083 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9084 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9085 goto nla_put_failure;
c063dbf5
JB		 9086
9087 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9088 if (!pinfoattr)
9089 goto nla_put_failure;
9090
9360ffd1
DM		 9091 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9092 goto nla_put_failure;
c063dbf5
JB		 9093
9094 nla_nest_end(msg, pinfoattr);
9095
3b7b72ee 9096 genlmsg_end(msg, hdr);
c063dbf5
JB		 9097
9098 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9099 nl80211_mlme_mcgrp.id, gfp);
9100 return;
9101
9102 nla_put_failure:
9103 genlmsg_cancel(msg, hdr);
9104 nlmsg_free(msg);
9105}
9106
7f6cf311
JB		 9107void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9108 u64 cookie, bool acked, gfp_t gfp)
9109{
9110 struct wireless_dev *wdev = dev->ieee80211_ptr;
9111 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9112 struct sk_buff *msg;
9113 void *hdr;
9114 int err;
9115
4ee3e063
BL		 9116 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9117
58050fce 9118 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 9119
7f6cf311
JB		 9120 if (!msg)
9121 return;
9122
9123 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9124 if (!hdr) {
9125 nlmsg_free(msg);
9126 return;
9127 }
9128
9360ffd1
DM		 9129 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9130 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9131 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9132 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9133 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9134 goto nla_put_failure;
7f6cf311
JB		 9135
9136 err = genlmsg_end(msg, hdr);
9137 if (err < 0) {
9138 nlmsg_free(msg);
9139 return;
9140 }
9141
9142 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9143 nl80211_mlme_mcgrp.id, gfp);
9144 return;
9145
9146 nla_put_failure:
9147 genlmsg_cancel(msg, hdr);
9148 nlmsg_free(msg);
9149}
9150EXPORT_SYMBOL(cfg80211_probe_status);
9151
5e760230
JB		 9152void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9153 const u8 *frame, size_t len,
37c73b5f 9154 int freq, int sig_dbm)
5e760230
JB		 9155{
9156 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9157 struct sk_buff *msg;
9158 void *hdr;
37c73b5f 9159 struct cfg80211_beacon_registration *reg;
5e760230 9160
4ee3e063
BL		 9161 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9162
37c73b5f
BG		 9163 spin_lock_bh(&rdev->beacon_registrations_lock);
9164 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9165 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9166 if (!msg) {
9167 spin_unlock_bh(&rdev->beacon_registrations_lock);
9168 return;
9169 }
5e760230 9170
37c73b5f
BG		 9171 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9172 if (!hdr)
9173 goto nla_put_failure;
5e760230 9174
37c73b5f
BG		 9175 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9176 (freq &&
9177 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9178 (sig_dbm &&
9179 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9180 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9181 goto nla_put_failure;
5e760230 9182
37c73b5f 9183 genlmsg_end(msg, hdr);
5e760230 9184
37c73b5f
BG		 9185 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9186 }
9187 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9188 return;
9189
9190 nla_put_failure:
37c73b5f
BG		 9191 spin_unlock_bh(&rdev->beacon_registrations_lock);
9192 if (hdr)
9193 genlmsg_cancel(msg, hdr);
5e760230
JB		 9194 nlmsg_free(msg);
9195}
9196EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9197
3475b094
JM		 9198void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9199 enum nl80211_tdls_operation oper,
9200 u16 reason_code, gfp_t gfp)
9201{
9202 struct wireless_dev *wdev = dev->ieee80211_ptr;
9203 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9204 struct sk_buff *msg;
9205 void *hdr;
9206 int err;
9207
9208 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9209 reason_code);
9210
9211 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9212 if (!msg)
9213 return;
9214
9215 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9216 if (!hdr) {
9217 nlmsg_free(msg);
9218 return;
9219 }
9220
9221 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9222 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9223 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9224 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9225 (reason_code > 0 &&
9226 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9227 goto nla_put_failure;
9228
9229 err = genlmsg_end(msg, hdr);
9230 if (err < 0) {
9231 nlmsg_free(msg);
9232 return;
9233 }
9234
9235 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9236 nl80211_mlme_mcgrp.id, gfp);
9237 return;
9238
9239 nla_put_failure:
9240 genlmsg_cancel(msg, hdr);
9241 nlmsg_free(msg);
9242}
9243EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9244
026331c4
JM		 9245static int nl80211_netlink_notify(struct notifier_block * nb,
9246 unsigned long state,
9247 void *_notify)
9248{
9249 struct netlink_notify *notify = _notify;
9250 struct cfg80211_registered_device *rdev;
9251 struct wireless_dev *wdev;
37c73b5f 9252 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 9253
9254 if (state != NETLINK_URELEASE)
9255 return NOTIFY_DONE;
9256
9257 rcu_read_lock();
9258
5e760230 9259 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 9260 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 9261 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 9262
9263 spin_lock_bh(&rdev->beacon_registrations_lock);
9264 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9265 list) {
9266 if (reg->nlportid == notify->portid) {
9267 list_del(&reg->list);
9268 kfree(reg);
9269 break;
9270 }
9271 }
9272 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 9273 }
026331c4
JM		 9274
9275 rcu_read_unlock();
9276
9277 return NOTIFY_DONE;
9278}
9279
9280static struct notifier_block nl80211_netlink_notifier = {
9281 .notifier_call = nl80211_netlink_notify,
9282};
9283
55682965
JB		 9284/* initialisation/exit functions */
9285
9286int nl80211_init(void)
9287{
0d63cbb5 9288 int err;
55682965 9289
0d63cbb5
MM		 9290 err = genl_register_family_with_ops(&nl80211_fam,
9291 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 9292 if (err)
9293 return err;
9294
55682965
JB		 9295 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9296 if (err)
9297 goto err_out;
9298
2a519311
JB		 9299 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9300 if (err)
9301 goto err_out;
9302
73d54c9e
LR		 9303 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9304 if (err)
9305 goto err_out;
9306
6039f6d2
JM		 9307 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9308 if (err)
9309 goto err_out;
9310
aff89a9b
JB		 9311#ifdef CONFIG_NL80211_TESTMODE
9312 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9313 if (err)
9314 goto err_out;
9315#endif
9316
026331c4
JM		 9317 err = netlink_register_notifier(&nl80211_netlink_notifier);
9318 if (err)
9319 goto err_out;
9320
55682965
JB		 9321 return 0;
9322 err_out:
9323 genl_unregister_family(&nl80211_fam);
9324 return err;
9325}
9326
9327void nl80211_exit(void)
9328{
026331c4 9329 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 9330 genl_unregister_family(&nl80211_fam);
9331}
kernel source for telekom puls (alcatel/mediatek)