]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - net/wireless/nl80211.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
mac80211: move add_tim to subfunction
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
e35e4d28 25#include "rdev-ops.h"
55682965 26
5fb628e9
JM		 27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
89a54e48
JB		 49/* returns ERR_PTR values */
50static struct wireless_dev *
51__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 52{
89a54e48
JB		 53 struct cfg80211_registered_device *rdev;
54 struct wireless_dev *result = NULL;
55 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
56 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
57 u64 wdev_id;
58 int wiphy_idx = -1;
59 int ifidx = -1;
55682965 60
89a54e48 61 assert_cfg80211_lock();
55682965 62
89a54e48
JB		 63 if (!have_ifidx && !have_wdev_id)
64 return ERR_PTR(-EINVAL);
55682965 65
89a54e48
JB		 66 if (have_ifidx)
67 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
68 if (have_wdev_id) {
69 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
70 wiphy_idx = wdev_id >> 32;
55682965
JB		 71 }
72
89a54e48
JB		 73 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
74 struct wireless_dev *wdev;
75
76 if (wiphy_net(&rdev->wiphy) != netns)
77 continue;
78
79 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
80 continue;
81
82 mutex_lock(&rdev->devlist_mtx);
83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
86 result = wdev;
87 break;
88 }
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
90 result = wdev;
91 break;
92 }
93 }
94 mutex_unlock(&rdev->devlist_mtx);
95
96 if (result)
97 break;
98 }
99
100 if (result)
101 return result;
102 return ERR_PTR(-ENODEV);
55682965
JB		 103}
104
a9455408 105static struct cfg80211_registered_device *
878d9ec7 106__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 107{
7fee4778
JB		 108 struct cfg80211_registered_device *rdev = NULL, *tmp;
109 struct net_device *netdev;
a9455408
JB		 110
111 assert_cfg80211_lock();
112
878d9ec7 113 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 114 !attrs[NL80211_ATTR_IFINDEX] &&
115 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 116 return ERR_PTR(-EINVAL);
117
878d9ec7 118 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 119 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 120 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 121
89a54e48
JB		 122 if (attrs[NL80211_ATTR_WDEV]) {
123 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
124 struct wireless_dev *wdev;
125 bool found = false;
126
127 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
128 if (tmp) {
129 /* make sure wdev exists */
130 mutex_lock(&tmp->devlist_mtx);
131 list_for_each_entry(wdev, &tmp->wdev_list, list) {
132 if (wdev->identifier != (u32)wdev_id)
133 continue;
134 found = true;
135 break;
136 }
137 mutex_unlock(&tmp->devlist_mtx);
138
139 if (!found)
140 tmp = NULL;
141
142 if (rdev && tmp != rdev)
143 return ERR_PTR(-EINVAL);
144 rdev = tmp;
145 }
146 }
147
878d9ec7
JB		 148 if (attrs[NL80211_ATTR_IFINDEX]) {
149 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 150 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 151 if (netdev) {
152 if (netdev->ieee80211_ptr)
153 tmp = wiphy_to_dev(
154 netdev->ieee80211_ptr->wiphy);
155 else
156 tmp = NULL;
157
158 dev_put(netdev);
159
160 /* not wireless device -- return error */
161 if (!tmp)
162 return ERR_PTR(-EINVAL);
163
164 /* mismatch -- return error */
165 if (rdev && tmp != rdev)
166 return ERR_PTR(-EINVAL);
167
168 rdev = tmp;
a9455408 169 }
a9455408 170 }
a9455408 171
4f7eff10
JB		 172 if (!rdev)
173 return ERR_PTR(-ENODEV);
a9455408 174
4f7eff10
JB		 175 if (netns != wiphy_net(&rdev->wiphy))
176 return ERR_PTR(-ENODEV);
177
178 return rdev;
a9455408
JB		 179}
180
181/*
182 * This function returns a pointer to the driver
183 * that the genl_info item that is passed refers to.
184 * If successful, it returns non-NULL and also locks
185 * the driver's mutex!
186 *
187 * This means that you need to call cfg80211_unlock_rdev()
188 * before being allowed to acquire &cfg80211_mutex!
189 *
190 * This is necessary because we need to lock the global
191 * mutex to get an item off the list safely, and then
192 * we lock the rdev mutex so it doesn't go away under us.
193 *
194 * We don't want to keep cfg80211_mutex locked
195 * for all the time in order to allow requests on
196 * other interfaces to go through at the same time.
197 *
198 * The result of this can be a PTR_ERR and hence must
199 * be checked with IS_ERR() for errors.
200 */
201static struct cfg80211_registered_device *
4f7eff10 202cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408
JB		 203{
204 struct cfg80211_registered_device *rdev;
205
206 mutex_lock(&cfg80211_mutex);
878d9ec7 207 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208
209 /* if it is not an error we grab the lock on
210 * it to assure it won't be going away while
211 * we operate on it */
212 if (!IS_ERR(rdev))
213 mutex_lock(&rdev->mtx);
214
215 mutex_unlock(&cfg80211_mutex);
216
217 return rdev;
218}
219
55682965 220/* policy for the attributes */
b54452b0 221static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 222 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
223 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 224 .len = 20-1 },
31888487 225 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 226
72bdcf34 227 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 228 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 229 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
230 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
232
b9a5f8ca
JM		 233 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
234 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
236 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 237 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 238
239 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
240 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 242
e007b857
EP		 243 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
244 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 245
b9454e83 246 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 247 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
248 .len = WLAN_MAX_KEY_LEN },
249 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
250 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
251 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 252 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 253 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 254
255 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
256 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
257 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
258 .len = IEEE80211_MAX_DATA_LEN },
259 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
260 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 261 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
262 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
263 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
264 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
265 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 266 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 267 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 268 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 269 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 270 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 271 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 272
b2e1b302
LR		 273 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
274 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
275
9f1ba906
JM		 276 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
277 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 279 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
280 .len = NL80211_MAX_SUPP_RATES },
50b12f59 281 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 282
24bdd9f4 283 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 284 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 285
6c739419 286 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 287
288 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
289 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
290 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 291 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
292 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 293
294 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
295 .len = IEEE80211_MAX_SSID_LEN },
296 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
297 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 298 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 299 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 300 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 301 [NL80211_ATTR_STA_FLAGS2] = {
302 .len = sizeof(struct nl80211_sta_flag_update),
303 },
3f77316c 304 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 305 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
306 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 307 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
308 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
309 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 310 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 311 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 312 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
313 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 314 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
315 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 316 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 317 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
318 .len = IEEE80211_MAX_DATA_LEN },
319 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 320 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 321 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 322 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 323 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 324 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
325 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 326 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 327 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
328 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 329 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 330 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 331 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 332 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 333 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 334 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 335 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 336 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 337 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 338 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
339 .len = IEEE80211_MAX_DATA_LEN },
340 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
341 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 342 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 343 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 344 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 345 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
346 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 350 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 351 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
352 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 353 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 354 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
355 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
356 .len = NL80211_HT_CAPABILITY_LEN
357 },
1d9d9213 358 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 359 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 360 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 361 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 362 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 363 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 364 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 365 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 366 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
367 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
55682965
JB		 368};
369
e31b8213 370/* policy for the key attributes */
b54452b0 371static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 372 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 373 [NL80211_KEY_IDX] = { .type = NLA_U8 },
374 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 375 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 376 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
377 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 378 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 379 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
380};
381
382/* policy for the key default flags */
383static const struct nla_policy
384nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
385 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
386 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 387};
388
ff1b6e69
JB		 389/* policy for WoWLAN attributes */
390static const struct nla_policy
391nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
392 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
393 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
394 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
395 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 396 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
397 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
398 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
399 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 400};
401
e5497d76
JB		 402/* policy for GTK rekey offload attributes */
403static const struct nla_policy
404nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
405 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
406 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
407 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
408};
409
a1f1c21c
LC		 410static const struct nla_policy
411nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 412 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 413 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 414 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 415};
416
a043897a
HS		 417/* ifidx get helper */
418static int nl80211_get_ifidx(struct netlink_callback *cb)
419{
420 int res;
421
422 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
423 nl80211_fam.attrbuf, nl80211_fam.maxattr,
424 nl80211_policy);
425 if (res)
426 return res;
427
428 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
429 return -EINVAL;
430
431 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
432 if (!res)
433 return -EINVAL;
434 return res;
435}
436
67748893
JB		 437static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
438 struct netlink_callback *cb,
439 struct cfg80211_registered_device **rdev,
440 struct net_device **dev)
441{
442 int ifidx = cb->args[0];
443 int err;
444
445 if (!ifidx)
446 ifidx = nl80211_get_ifidx(cb);
447 if (ifidx < 0)
448 return ifidx;
449
450 cb->args[0] = ifidx;
451
452 rtnl_lock();
453
454 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
455 if (!*dev) {
456 err = -ENODEV;
457 goto out_rtnl;
458 }
459
460 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 461 if (IS_ERR(*rdev)) {
462 err = PTR_ERR(*rdev);
67748893
JB		 463 goto out_rtnl;
464 }
465
466 return 0;
467 out_rtnl:
468 rtnl_unlock();
469 return err;
470}
471
472static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
473{
474 cfg80211_unlock_rdev(rdev);
475 rtnl_unlock();
476}
477
f4a11bb0
JB		 478/* IE validation */
479static bool is_valid_ie_attr(const struct nlattr *attr)
480{
481 const u8 *pos;
482 int len;
483
484 if (!attr)
485 return true;
486
487 pos = nla_data(attr);
488 len = nla_len(attr);
489
490 while (len) {
491 u8 elemlen;
492
493 if (len < 2)
494 return false;
495 len -= 2;
496
497 elemlen = pos[1];
498 if (elemlen > len)
499 return false;
500
501 len -= elemlen;
502 pos += 2 + elemlen;
503 }
504
505 return true;
506}
507
55682965 508/* message building helper */
15e47304 509static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 510 int flags, u8 cmd)
511{
512 /* since there is no private header just add the generic one */
15e47304 513 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 514}
515
5dab3b8a
LR		 516static int nl80211_msg_put_channel(struct sk_buff *msg,
517 struct ieee80211_channel *chan)
518{
9360ffd1
DM		 519 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
520 chan->center_freq))
521 goto nla_put_failure;
5dab3b8a 522
9360ffd1
DM		 523 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
524 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
525 goto nla_put_failure;
526 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
527 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
528 goto nla_put_failure;
529 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
530 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
531 goto nla_put_failure;
532 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
533 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
534 goto nla_put_failure;
5dab3b8a 535
9360ffd1
DM		 536 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
537 DBM_TO_MBM(chan->max_power)))
538 goto nla_put_failure;
5dab3b8a
LR		 539
540 return 0;
541
542 nla_put_failure:
543 return -ENOBUFS;
544}
545
55682965
JB		 546/* netlink command implementations */
547
b9454e83
JB		 548struct key_parse {
549 struct key_params p;
550 int idx;
e31b8213 551 int type;
b9454e83 552 bool def, defmgmt;
dbd2fd65 553 bool def_uni, def_multi;
b9454e83
JB		 554};
555
556static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
557{
558 struct nlattr *tb[NL80211_KEY_MAX + 1];
559 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
560 nl80211_key_policy);
561 if (err)
562 return err;
563
564 k->def = !!tb[NL80211_KEY_DEFAULT];
565 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
566
dbd2fd65
JB		 567 if (k->def) {
568 k->def_uni = true;
569 k->def_multi = true;
570 }
571 if (k->defmgmt)
572 k->def_multi = true;
573
b9454e83
JB		 574 if (tb[NL80211_KEY_IDX])
575 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
576
577 if (tb[NL80211_KEY_DATA]) {
578 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
579 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
580 }
581
582 if (tb[NL80211_KEY_SEQ]) {
583 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
584 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
585 }
586
587 if (tb[NL80211_KEY_CIPHER])
588 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
589
e31b8213
JB		 590 if (tb[NL80211_KEY_TYPE]) {
591 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
592 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
593 return -EINVAL;
594 }
595
dbd2fd65
JB		 596 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
597 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 598 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
599 tb[NL80211_KEY_DEFAULT_TYPES],
600 nl80211_key_default_policy);
dbd2fd65
JB		 601 if (err)
602 return err;
603
604 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
605 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
606 }
607
b9454e83
JB		 608 return 0;
609}
610
611static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
612{
613 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
614 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
615 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
616 }
617
618 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
619 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
620 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
621 }
622
623 if (info->attrs[NL80211_ATTR_KEY_IDX])
624 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
625
626 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
627 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
628
629 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
630 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
631
dbd2fd65
JB		 632 if (k->def) {
633 k->def_uni = true;
634 k->def_multi = true;
635 }
636 if (k->defmgmt)
637 k->def_multi = true;
638
e31b8213
JB		 639 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
640 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
641 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
642 return -EINVAL;
643 }
644
dbd2fd65
JB		 645 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
646 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
647 int err = nla_parse_nested(
648 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
649 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
650 nl80211_key_default_policy);
651 if (err)
652 return err;
653
654 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
655 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
656 }
657
b9454e83
JB		 658 return 0;
659}
660
661static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
662{
663 int err;
664
665 memset(k, 0, sizeof(*k));
666 k->idx = -1;
e31b8213 667 k->type = -1;
b9454e83
JB		 668
669 if (info->attrs[NL80211_ATTR_KEY])
670 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
671 else
672 err = nl80211_parse_key_old(info, k);
673
674 if (err)
675 return err;
676
677 if (k->def && k->defmgmt)
678 return -EINVAL;
679
dbd2fd65
JB		 680 if (k->defmgmt) {
681 if (k->def_uni || !k->def_multi)
682 return -EINVAL;
683 }
684
b9454e83
JB		 685 if (k->idx != -1) {
686 if (k->defmgmt) {
687 if (k->idx < 4 || k->idx > 5)
688 return -EINVAL;
689 } else if (k->def) {
690 if (k->idx < 0 || k->idx > 3)
691 return -EINVAL;
692 } else {
693 if (k->idx < 0 || k->idx > 5)
694 return -EINVAL;
695 }
696 }
697
698 return 0;
699}
700
fffd0934
JB		 701static struct cfg80211_cached_keys *
702nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 703 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 704{
705 struct key_parse parse;
706 struct nlattr *key;
707 struct cfg80211_cached_keys *result;
708 int rem, err, def = 0;
709
710 result = kzalloc(sizeof(*result), GFP_KERNEL);
711 if (!result)
712 return ERR_PTR(-ENOMEM);
713
714 result->def = -1;
715 result->defmgmt = -1;
716
717 nla_for_each_nested(key, keys, rem) {
718 memset(&parse, 0, sizeof(parse));
719 parse.idx = -1;
720
721 err = nl80211_parse_key_new(key, &parse);
722 if (err)
723 goto error;
724 err = -EINVAL;
725 if (!parse.p.key)
726 goto error;
727 if (parse.idx < 0 || parse.idx > 4)
728 goto error;
729 if (parse.def) {
730 if (def)
731 goto error;
732 def = 1;
733 result->def = parse.idx;
dbd2fd65
JB		 734 if (!parse.def_uni || !parse.def_multi)
735 goto error;
fffd0934
JB		 736 } else if (parse.defmgmt)
737 goto error;
738 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 739 parse.idx, false, NULL);
fffd0934
JB		 740 if (err)
741 goto error;
742 result->params[parse.idx].cipher = parse.p.cipher;
743 result->params[parse.idx].key_len = parse.p.key_len;
744 result->params[parse.idx].key = result->data[parse.idx];
745 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 746
747 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
748 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
749 if (no_ht)
750 *no_ht = true;
751 }
fffd0934
JB		 752 }
753
754 return result;
755 error:
756 kfree(result);
757 return ERR_PTR(err);
758}
759
760static int nl80211_key_allowed(struct wireless_dev *wdev)
761{
762 ASSERT_WDEV_LOCK(wdev);
763
fffd0934
JB		 764 switch (wdev->iftype) {
765 case NL80211_IFTYPE_AP:
766 case NL80211_IFTYPE_AP_VLAN:
074ac8df 767 case NL80211_IFTYPE_P2P_GO:
ff973af7 768 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 769 break;
770 case NL80211_IFTYPE_ADHOC:
771 if (!wdev->current_bss)
772 return -ENOLINK;
773 break;
774 case NL80211_IFTYPE_STATION:
074ac8df 775 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 776 if (wdev->sme_state != CFG80211_SME_CONNECTED)
777 return -ENOLINK;
778 break;
779 default:
780 return -EINVAL;
781 }
782
783 return 0;
784}
785
7527a782
JB		 786static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
787{
788 struct nlattr *nl_modes = nla_nest_start(msg, attr);
789 int i;
790
791 if (!nl_modes)
792 goto nla_put_failure;
793
794 i = 0;
795 while (ifmodes) {
9360ffd1
DM		 796 if ((ifmodes & 1) && nla_put_flag(msg, i))
797 goto nla_put_failure;
7527a782
JB		 798 ifmodes >>= 1;
799 i++;
800 }
801
802 nla_nest_end(msg, nl_modes);
803 return 0;
804
805nla_put_failure:
806 return -ENOBUFS;
807}
808
809static int nl80211_put_iface_combinations(struct wiphy *wiphy,
810 struct sk_buff *msg)
811{
812 struct nlattr *nl_combis;
813 int i, j;
814
815 nl_combis = nla_nest_start(msg,
816 NL80211_ATTR_INTERFACE_COMBINATIONS);
817 if (!nl_combis)
818 goto nla_put_failure;
819
820 for (i = 0; i < wiphy->n_iface_combinations; i++) {
821 const struct ieee80211_iface_combination *c;
822 struct nlattr *nl_combi, *nl_limits;
823
824 c = &wiphy->iface_combinations[i];
825
826 nl_combi = nla_nest_start(msg, i + 1);
827 if (!nl_combi)
828 goto nla_put_failure;
829
830 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
831 if (!nl_limits)
832 goto nla_put_failure;
833
834 for (j = 0; j < c->n_limits; j++) {
835 struct nlattr *nl_limit;
836
837 nl_limit = nla_nest_start(msg, j + 1);
838 if (!nl_limit)
839 goto nla_put_failure;
9360ffd1
DM		 840 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
841 c->limits[j].max))
842 goto nla_put_failure;
7527a782
JB		 843 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
844 c->limits[j].types))
845 goto nla_put_failure;
846 nla_nest_end(msg, nl_limit);
847 }
848
849 nla_nest_end(msg, nl_limits);
850
9360ffd1
DM		 851 if (c->beacon_int_infra_match &&
852 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
853 goto nla_put_failure;
854 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
855 c->num_different_channels) ||
856 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
857 c->max_interfaces))
858 goto nla_put_failure;
7527a782
JB		 859
860 nla_nest_end(msg, nl_combi);
861 }
862
863 nla_nest_end(msg, nl_combis);
864
865 return 0;
866nla_put_failure:
867 return -ENOBUFS;
868}
869
15e47304 870static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
55682965
JB		 871 struct cfg80211_registered_device *dev)
872{
873 void *hdr;
ee688b00
JB		 874 struct nlattr *nl_bands, *nl_band;
875 struct nlattr *nl_freqs, *nl_freq;
876 struct nlattr *nl_rates, *nl_rate;
8fdc621d 877 struct nlattr *nl_cmds;
ee688b00
JB		 878 enum ieee80211_band band;
879 struct ieee80211_channel *chan;
880 struct ieee80211_rate *rate;
881 int i;
2e161f78
JB		 882 const struct ieee80211_txrx_stypes *mgmt_stypes =
883 dev->wiphy.mgmt_stypes;
55682965 884
15e47304 885 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
55682965
JB		 886 if (!hdr)
887 return -1;
888
9360ffd1
DM		 889 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
890 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
891 nla_put_u32(msg, NL80211_ATTR_GENERATION,
892 cfg80211_rdev_list_generation) ||
893 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
894 dev->wiphy.retry_short) ||
895 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
896 dev->wiphy.retry_long) ||
897 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
898 dev->wiphy.frag_threshold) ||
899 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
900 dev->wiphy.rts_threshold) ||
901 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
902 dev->wiphy.coverage_class) ||
903 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
904 dev->wiphy.max_scan_ssids) ||
905 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
906 dev->wiphy.max_sched_scan_ssids) ||
907 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
908 dev->wiphy.max_scan_ie_len) ||
909 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
910 dev->wiphy.max_sched_scan_ie_len) ||
911 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
912 dev->wiphy.max_match_sets))
913 goto nla_put_failure;
914
915 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
916 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
917 goto nla_put_failure;
918 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
919 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
920 goto nla_put_failure;
921 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
922 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
923 goto nla_put_failure;
924 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
925 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
926 goto nla_put_failure;
927 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
928 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
929 goto nla_put_failure;
930 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
931 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
932 goto nla_put_failure;
933
934 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
935 sizeof(u32) * dev->wiphy.n_cipher_suites,
936 dev->wiphy.cipher_suites))
937 goto nla_put_failure;
938
939 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
940 dev->wiphy.max_num_pmkids))
941 goto nla_put_failure;
942
943 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
944 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
945 goto nla_put_failure;
946
947 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
948 dev->wiphy.available_antennas_tx) ||
949 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
950 dev->wiphy.available_antennas_rx))
951 goto nla_put_failure;
952
953 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
954 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
955 dev->wiphy.probe_resp_offload))
956 goto nla_put_failure;
87bbbe22 957
7f531e03
BR		 958 if ((dev->wiphy.available_antennas_tx ||
959 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 960 u32 tx_ant = 0, rx_ant = 0;
961 int res;
e35e4d28 962 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
afe0cbf8 963 if (!res) {
9360ffd1
DM		 964 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
965 tx_ant) ||
966 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
967 rx_ant))
968 goto nla_put_failure;
afe0cbf8
BR		 969 }
970 }
971
7527a782
JB		 972 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
973 dev->wiphy.interface_modes))
f59ac048
LR		 974 goto nla_put_failure;
975
ee688b00
JB		 976 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
977 if (!nl_bands)
978 goto nla_put_failure;
979
980 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
981 if (!dev->wiphy.bands[band])
982 continue;
983
984 nl_band = nla_nest_start(msg, band);
985 if (!nl_band)
986 goto nla_put_failure;
987
d51626df 988 /* add HT info */
9360ffd1
DM		 989 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
990 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
991 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
992 &dev->wiphy.bands[band]->ht_cap.mcs) ||
993 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
994 dev->wiphy.bands[band]->ht_cap.cap) ||
995 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
996 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
997 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
998 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
999 goto nla_put_failure;
d51626df 1000
bf0c111e
MP		 1001 /* add VHT info */
1002 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1003 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1004 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1005 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1006 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1007 dev->wiphy.bands[band]->vht_cap.cap)))
1008 goto nla_put_failure;
1009
ee688b00
JB		 1010 /* add frequencies */
1011 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1012 if (!nl_freqs)
1013 goto nla_put_failure;
1014
1015 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1016 nl_freq = nla_nest_start(msg, i);
1017 if (!nl_freq)
1018 goto nla_put_failure;
1019
1020 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 1021
1022 if (nl80211_msg_put_channel(msg, chan))
1023 goto nla_put_failure;
e2f367f2 1024
ee688b00
JB		 1025 nla_nest_end(msg, nl_freq);
1026 }
1027
1028 nla_nest_end(msg, nl_freqs);
1029
1030 /* add bitrates */
1031 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1032 if (!nl_rates)
1033 goto nla_put_failure;
1034
1035 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1036 nl_rate = nla_nest_start(msg, i);
1037 if (!nl_rate)
1038 goto nla_put_failure;
1039
1040 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 1041 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1042 rate->bitrate))
1043 goto nla_put_failure;
1044 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1045 nla_put_flag(msg,
1046 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1047 goto nla_put_failure;
ee688b00
JB		 1048
1049 nla_nest_end(msg, nl_rate);
1050 }
1051
1052 nla_nest_end(msg, nl_rates);
1053
1054 nla_nest_end(msg, nl_band);
1055 }
1056 nla_nest_end(msg, nl_bands);
1057
8fdc621d
JB		 1058 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1059 if (!nl_cmds)
1060 goto nla_put_failure;
1061
1062 i = 0;
1063#define CMD(op, n) \
1064 do { \
1065 if (dev->ops->op) { \
1066 i++; \
9360ffd1
DM		 1067 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1068 goto nla_put_failure; \
8fdc621d
JB		 1069 } \
1070 } while (0)
1071
1072 CMD(add_virtual_intf, NEW_INTERFACE);
1073 CMD(change_virtual_intf, SET_INTERFACE);
1074 CMD(add_key, NEW_KEY);
8860020e 1075 CMD(start_ap, START_AP);
8fdc621d
JB		 1076 CMD(add_station, NEW_STATION);
1077 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1078 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1079 CMD(change_bss, SET_BSS);
636a5d36
JM		 1080 CMD(auth, AUTHENTICATE);
1081 CMD(assoc, ASSOCIATE);
1082 CMD(deauth, DEAUTHENTICATE);
1083 CMD(disassoc, DISASSOCIATE);
04a773ad 1084 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1085 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1086 CMD(set_pmksa, SET_PMKSA);
1087 CMD(del_pmksa, DEL_PMKSA);
1088 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1089 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1090 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1091 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1092 CMD(mgmt_tx, FRAME);
f7ca38df 1093 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1094 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1095 i++;
9360ffd1
DM		 1096 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1097 goto nla_put_failure;
463d0183 1098 }
e8c9bd5b 1099 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1100 dev->ops->join_mesh) {
aa430da4
JB		 1101 i++;
1102 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1103 goto nla_put_failure;
1104 }
e8347eba 1105 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1106 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1107 CMD(tdls_mgmt, TDLS_MGMT);
1108 CMD(tdls_oper, TDLS_OPER);
1109 }
807f8a8c
LC		 1110 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1111 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1112 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1113 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1114 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1115 i++;
9360ffd1
DM		 1116 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1117 goto nla_put_failure;
5e760230 1118 }
98104fde 1119 CMD(start_p2p_device, START_P2P_DEVICE);
f4e583c8 1120 CMD(set_mcast_rate, SET_MCAST_RATE);
8fdc621d 1121
4745fc09
KV		 1122#ifdef CONFIG_NL80211_TESTMODE
1123 CMD(testmode_cmd, TESTMODE);
1124#endif
1125
8fdc621d 1126#undef CMD
b23aa676 1127
6829c878 1128 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1129 i++;
9360ffd1
DM		 1130 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1131 goto nla_put_failure;
b23aa676
SO		 1132 }
1133
6829c878 1134 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1135 i++;
9360ffd1
DM		 1136 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1137 goto nla_put_failure;
b23aa676
SO		 1138 }
1139
8fdc621d
JB		 1140 nla_nest_end(msg, nl_cmds);
1141
7c4ef712 1142 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1143 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1144 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1145 dev->wiphy.max_remain_on_channel_duration))
1146 goto nla_put_failure;
a293911d 1147
9360ffd1
DM		 1148 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1149 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1150 goto nla_put_failure;
f7ca38df 1151
2e161f78
JB		 1152 if (mgmt_stypes) {
1153 u16 stypes;
1154 struct nlattr *nl_ftypes, *nl_ifs;
1155 enum nl80211_iftype ift;
1156
1157 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1158 if (!nl_ifs)
1159 goto nla_put_failure;
1160
1161 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1162 nl_ftypes = nla_nest_start(msg, ift);
1163 if (!nl_ftypes)
1164 goto nla_put_failure;
1165 i = 0;
1166 stypes = mgmt_stypes[ift].tx;
1167 while (stypes) {
9360ffd1
DM		 1168 if ((stypes & 1) &&
1169 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1170 (i << 4) | IEEE80211_FTYPE_MGMT))
1171 goto nla_put_failure;
2e161f78
JB		 1172 stypes >>= 1;
1173 i++;
1174 }
1175 nla_nest_end(msg, nl_ftypes);
1176 }
1177
74b70a4e
JB		 1178 nla_nest_end(msg, nl_ifs);
1179
2e161f78
JB		 1180 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1181 if (!nl_ifs)
1182 goto nla_put_failure;
1183
1184 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1185 nl_ftypes = nla_nest_start(msg, ift);
1186 if (!nl_ftypes)
1187 goto nla_put_failure;
1188 i = 0;
1189 stypes = mgmt_stypes[ift].rx;
1190 while (stypes) {
9360ffd1
DM		 1191 if ((stypes & 1) &&
1192 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1193 (i << 4) | IEEE80211_FTYPE_MGMT))
1194 goto nla_put_failure;
2e161f78
JB		 1195 stypes >>= 1;
1196 i++;
1197 }
1198 nla_nest_end(msg, nl_ftypes);
1199 }
1200 nla_nest_end(msg, nl_ifs);
1201 }
1202
dfb89c56 1203#ifdef CONFIG_PM
ff1b6e69
JB		 1204 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1205 struct nlattr *nl_wowlan;
1206
1207 nl_wowlan = nla_nest_start(msg,
1208 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1209 if (!nl_wowlan)
1210 goto nla_put_failure;
1211
9360ffd1
DM		 1212 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1213 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1214 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1215 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1216 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1217 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1218 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1219 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1220 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1221 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1222 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1223 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1224 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1225 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1226 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1227 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1228 goto nla_put_failure;
ff1b6e69
JB		 1229 if (dev->wiphy.wowlan.n_patterns) {
1230 struct nl80211_wowlan_pattern_support pat = {
1231 .max_patterns = dev->wiphy.wowlan.n_patterns,
1232 .min_pattern_len =
1233 dev->wiphy.wowlan.pattern_min_len,
1234 .max_pattern_len =
1235 dev->wiphy.wowlan.pattern_max_len,
1236 };
9360ffd1
DM		 1237 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1238 sizeof(pat), &pat))
1239 goto nla_put_failure;
ff1b6e69
JB		 1240 }
1241
1242 nla_nest_end(msg, nl_wowlan);
1243 }
dfb89c56 1244#endif
ff1b6e69 1245
7527a782
JB		 1246 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1247 dev->wiphy.software_iftypes))
1248 goto nla_put_failure;
1249
1250 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1251 goto nla_put_failure;
1252
9360ffd1
DM		 1253 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1254 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1255 dev->wiphy.ap_sme_capa))
1256 goto nla_put_failure;
562a7480 1257
9360ffd1
DM		 1258 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1259 dev->wiphy.features))
1260 goto nla_put_failure;
1f074bd8 1261
9360ffd1
DM		 1262 if (dev->wiphy.ht_capa_mod_mask &&
1263 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1264 sizeof(*dev->wiphy.ht_capa_mod_mask),
1265 dev->wiphy.ht_capa_mod_mask))
1266 goto nla_put_failure;
7e7c8926 1267
55682965
JB		 1268 return genlmsg_end(msg, hdr);
1269
1270 nla_put_failure:
bc3ed28c
TG		 1271 genlmsg_cancel(msg, hdr);
1272 return -EMSGSIZE;
55682965
JB		 1273}
1274
1275static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1276{
1277 int idx = 0;
1278 int start = cb->args[0];
1279 struct cfg80211_registered_device *dev;
1280
a1794390 1281 mutex_lock(&cfg80211_mutex);
79c97e97 1282 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1283 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1284 continue;
b4637271 1285 if (++idx <= start)
55682965 1286 continue;
15e47304 1287 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
55682965 1288 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1289 dev) < 0) {
1290 idx--;
55682965 1291 break;
b4637271 1292 }
55682965 1293 }
a1794390 1294 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1295
1296 cb->args[0] = idx;
1297
1298 return skb->len;
1299}
1300
1301static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1302{
1303 struct sk_buff *msg;
4c476991 1304 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1305
fd2120ca 1306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1307 if (!msg)
4c476991 1308 return -ENOMEM;
55682965 1309
15e47304 1310 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
4c476991
JB		 1311 nlmsg_free(msg);
1312 return -ENOBUFS;
1313 }
55682965 1314
134e6375 1315 return genlmsg_reply(msg, info);
55682965
JB		 1316}
1317
31888487
JM		 1318static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1319 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1320 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1321 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1322 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1323 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1324};
1325
1326static int parse_txq_params(struct nlattr *tb[],
1327 struct ieee80211_txq_params *txq_params)
1328{
a3304b0a 1329 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1330 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1331 !tb[NL80211_TXQ_ATTR_AIFS])
1332 return -EINVAL;
1333
a3304b0a 1334 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1335 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1336 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1337 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1338 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1339
a3304b0a
JB		 1340 if (txq_params->ac >= NL80211_NUM_ACS)
1341 return -EINVAL;
1342
31888487
JM		 1343 return 0;
1344}
1345
f444de05
JB		 1346static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1347{
1348 /*
cc1d2806
JB		 1349 * You can only set the channel explicitly for WDS interfaces,
1350 * all others have their channel managed via their respective
1351 * "establish a connection" command (connect, join, ...)
1352 *
1353 * For AP/GO and mesh mode, the channel can be set with the
1354 * channel userspace API, but is only stored and passed to the
1355 * low-level driver when the AP starts or the mesh is joined.
1356 * This is for backward compatibility, userspace can also give
1357 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1358 *
1359 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1360 * whatever else is going on, so they have their own special
1361 * operation to set the monitor channel if possible.
f444de05
JB		 1362 */
1363 return !wdev ||
1364 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1365 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1366 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1367 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1368}
1369
683b6d3b
JB		 1370static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1371 struct genl_info *info,
1372 struct cfg80211_chan_def *chandef)
1373{
dbeca2ea 1374 u32 control_freq;
683b6d3b
JB		 1375
1376 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1377 return -EINVAL;
1378
1379 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1380
1381 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1382 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1383 chandef->center_freq1 = control_freq;
1384 chandef->center_freq2 = 0;
683b6d3b
JB		 1385
1386 /* Primary channel not allowed */
1387 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1388 return -EINVAL;
1389
3d9d1d66
JB		 1390 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1391 enum nl80211_channel_type chantype;
1392
1393 chantype = nla_get_u32(
1394 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1395
1396 switch (chantype) {
1397 case NL80211_CHAN_NO_HT:
1398 case NL80211_CHAN_HT20:
1399 case NL80211_CHAN_HT40PLUS:
1400 case NL80211_CHAN_HT40MINUS:
1401 cfg80211_chandef_create(chandef, chandef->chan,
1402 chantype);
1403 break;
1404 default:
1405 return -EINVAL;
1406 }
1407 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1408 chandef->width =
1409 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1410 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1411 chandef->center_freq1 =
1412 nla_get_u32(
1413 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1414 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1415 chandef->center_freq2 =
1416 nla_get_u32(
1417 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1418 }
1419
9f5e8f6e 1420 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1421 return -EINVAL;
1422
9f5e8f6e
JB		 1423 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1424 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1425 return -EINVAL;
1426
683b6d3b
JB		 1427 return 0;
1428}
1429
f444de05
JB		 1430static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1431 struct wireless_dev *wdev,
1432 struct genl_info *info)
1433{
683b6d3b 1434 struct cfg80211_chan_def chandef;
f444de05 1435 int result;
e8c9bd5b
JB		 1436 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1437
1438 if (wdev)
1439 iftype = wdev->iftype;
f444de05 1440
f444de05
JB		 1441 if (!nl80211_can_set_dev_channel(wdev))
1442 return -EOPNOTSUPP;
1443
683b6d3b
JB		 1444 result = nl80211_parse_chandef(rdev, info, &chandef);
1445 if (result)
1446 return result;
f444de05
JB		 1447
1448 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1449 switch (iftype) {
aa430da4
JB		 1450 case NL80211_IFTYPE_AP:
1451 case NL80211_IFTYPE_P2P_GO:
1452 if (wdev->beacon_interval) {
1453 result = -EBUSY;
1454 break;
1455 }
683b6d3b 1456 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1457 result = -EINVAL;
1458 break;
1459 }
683b6d3b 1460 wdev->preset_chandef = chandef;
aa430da4
JB		 1461 result = 0;
1462 break;
cc1d2806 1463 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1464 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1465 break;
e8c9bd5b 1466 case NL80211_IFTYPE_MONITOR:
683b6d3b 1467 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1468 break;
aa430da4 1469 default:
e8c9bd5b 1470 result = -EINVAL;
f444de05
JB		 1471 }
1472 mutex_unlock(&rdev->devlist_mtx);
1473
1474 return result;
1475}
1476
1477static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1478{
4c476991
JB		 1479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1480 struct net_device *netdev = info->user_ptr[1];
f444de05 1481
4c476991 1482 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1483}
1484
e8347eba
BJ		 1485static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1486{
43b19952
JB		 1487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1488 struct net_device *dev = info->user_ptr[1];
1489 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1490 const u8 *bssid;
e8347eba
BJ		 1491
1492 if (!info->attrs[NL80211_ATTR_MAC])
1493 return -EINVAL;
1494
43b19952
JB		 1495 if (netif_running(dev))
1496 return -EBUSY;
e8347eba 1497
43b19952
JB		 1498 if (!rdev->ops->set_wds_peer)
1499 return -EOPNOTSUPP;
e8347eba 1500
43b19952
JB		 1501 if (wdev->iftype != NL80211_IFTYPE_WDS)
1502 return -EOPNOTSUPP;
e8347eba
BJ		 1503
1504 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1505 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1506}
1507
1508
55682965
JB		 1509static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1510{
1511 struct cfg80211_registered_device *rdev;
f444de05
JB		 1512 struct net_device *netdev = NULL;
1513 struct wireless_dev *wdev;
a1e567c8 1514 int result = 0, rem_txq_params = 0;
31888487 1515 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1516 u32 changed;
1517 u8 retry_short = 0, retry_long = 0;
1518 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1519 u8 coverage_class = 0;
55682965 1520
f444de05
JB		 1521 /*
1522 * Try to find the wiphy and netdev. Normally this
1523 * function shouldn't need the netdev, but this is
1524 * done for backward compatibility -- previously
1525 * setting the channel was done per wiphy, but now
1526 * it is per netdev. Previous userland like hostapd
1527 * also passed a netdev to set_wiphy, so that it is
1528 * possible to let that go to the right netdev!
1529 */
4bbf4d56
JB		 1530 mutex_lock(&cfg80211_mutex);
1531
f444de05
JB		 1532 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1533 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1534
1535 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1536 if (netdev && netdev->ieee80211_ptr) {
1537 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1538 mutex_lock(&rdev->mtx);
1539 } else
1540 netdev = NULL;
4bbf4d56
JB		 1541 }
1542
f444de05 1543 if (!netdev) {
878d9ec7
JB		 1544 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1545 info->attrs);
f444de05
JB		 1546 if (IS_ERR(rdev)) {
1547 mutex_unlock(&cfg80211_mutex);
4c476991 1548 return PTR_ERR(rdev);
f444de05
JB		 1549 }
1550 wdev = NULL;
1551 netdev = NULL;
1552 result = 0;
1553
1554 mutex_lock(&rdev->mtx);
71fe96bf 1555 } else
f444de05 1556 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1557
1558 /*
1559 * end workaround code, by now the rdev is available
1560 * and locked, and wdev may or may not be NULL.
1561 */
4bbf4d56
JB		 1562
1563 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1564 result = cfg80211_dev_rename(
1565 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1566
1567 mutex_unlock(&cfg80211_mutex);
1568
1569 if (result)
1570 goto bad_res;
31888487
JM		 1571
1572 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1573 struct ieee80211_txq_params txq_params;
1574 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1575
1576 if (!rdev->ops->set_txq_params) {
1577 result = -EOPNOTSUPP;
1578 goto bad_res;
1579 }
1580
f70f01c2
EP		 1581 if (!netdev) {
1582 result = -EINVAL;
1583 goto bad_res;
1584 }
1585
133a3ff2
JB		 1586 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1587 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1588 result = -EINVAL;
1589 goto bad_res;
1590 }
1591
2b5f8b0b
JB		 1592 if (!netif_running(netdev)) {
1593 result = -ENETDOWN;
1594 goto bad_res;
1595 }
1596
31888487
JM		 1597 nla_for_each_nested(nl_txq_params,
1598 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1599 rem_txq_params) {
1600 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1601 nla_data(nl_txq_params),
1602 nla_len(nl_txq_params),
1603 txq_params_policy);
1604 result = parse_txq_params(tb, &txq_params);
1605 if (result)
1606 goto bad_res;
1607
e35e4d28
HG		 1608 result = rdev_set_txq_params(rdev, netdev,
1609 &txq_params);
31888487
JM		 1610 if (result)
1611 goto bad_res;
1612 }
1613 }
55682965 1614
72bdcf34 1615 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1616 result = __nl80211_set_channel(rdev,
1617 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1618 info);
72bdcf34
JM		 1619 if (result)
1620 goto bad_res;
1621 }
1622
98d2ff8b 1623 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1624 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1625 enum nl80211_tx_power_setting type;
1626 int idx, mbm = 0;
1627
c8442118
JB		 1628 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1629 txp_wdev = NULL;
1630
98d2ff8b 1631 if (!rdev->ops->set_tx_power) {
60ea385f 1632 result = -EOPNOTSUPP;
98d2ff8b
JO		 1633 goto bad_res;
1634 }
1635
1636 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1637 type = nla_get_u32(info->attrs[idx]);
1638
1639 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1640 (type != NL80211_TX_POWER_AUTOMATIC)) {
1641 result = -EINVAL;
1642 goto bad_res;
1643 }
1644
1645 if (type != NL80211_TX_POWER_AUTOMATIC) {
1646 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1647 mbm = nla_get_u32(info->attrs[idx]);
1648 }
1649
c8442118 1650 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1651 if (result)
1652 goto bad_res;
1653 }
1654
afe0cbf8
BR		 1655 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1656 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1657 u32 tx_ant, rx_ant;
7f531e03
BR		 1658 if ((!rdev->wiphy.available_antennas_tx &&
1659 !rdev->wiphy.available_antennas_rx) ||
1660 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1661 result = -EOPNOTSUPP;
1662 goto bad_res;
1663 }
1664
1665 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1666 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1667
a7ffac95 1668 /* reject antenna configurations which don't match the
7f531e03
BR		 1669 * available antenna masks, except for the "all" mask */
1670 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1671 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1672 result = -EINVAL;
1673 goto bad_res;
1674 }
1675
7f531e03
BR		 1676 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1677 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1678
e35e4d28 1679 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1680 if (result)
1681 goto bad_res;
1682 }
1683
b9a5f8ca
JM		 1684 changed = 0;
1685
1686 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1687 retry_short = nla_get_u8(
1688 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1689 if (retry_short == 0) {
1690 result = -EINVAL;
1691 goto bad_res;
1692 }
1693 changed |= WIPHY_PARAM_RETRY_SHORT;
1694 }
1695
1696 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1697 retry_long = nla_get_u8(
1698 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1699 if (retry_long == 0) {
1700 result = -EINVAL;
1701 goto bad_res;
1702 }
1703 changed |= WIPHY_PARAM_RETRY_LONG;
1704 }
1705
1706 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1707 frag_threshold = nla_get_u32(
1708 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1709 if (frag_threshold < 256) {
1710 result = -EINVAL;
1711 goto bad_res;
1712 }
1713 if (frag_threshold != (u32) -1) {
1714 /*
1715 * Fragments (apart from the last one) are required to
1716 * have even length. Make the fragmentation code
1717 * simpler by stripping LSB should someone try to use
1718 * odd threshold value.
1719 */
1720 frag_threshold &= ~0x1;
1721 }
1722 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1723 }
1724
1725 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1726 rts_threshold = nla_get_u32(
1727 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1728 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1729 }
1730
81077e82
LT		 1731 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1732 coverage_class = nla_get_u8(
1733 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1734 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1735 }
1736
b9a5f8ca
JM		 1737 if (changed) {
1738 u8 old_retry_short, old_retry_long;
1739 u32 old_frag_threshold, old_rts_threshold;
81077e82 1740 u8 old_coverage_class;
b9a5f8ca
JM		 1741
1742 if (!rdev->ops->set_wiphy_params) {
1743 result = -EOPNOTSUPP;
1744 goto bad_res;
1745 }
1746
1747 old_retry_short = rdev->wiphy.retry_short;
1748 old_retry_long = rdev->wiphy.retry_long;
1749 old_frag_threshold = rdev->wiphy.frag_threshold;
1750 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1751 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1752
1753 if (changed & WIPHY_PARAM_RETRY_SHORT)
1754 rdev->wiphy.retry_short = retry_short;
1755 if (changed & WIPHY_PARAM_RETRY_LONG)
1756 rdev->wiphy.retry_long = retry_long;
1757 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1758 rdev->wiphy.frag_threshold = frag_threshold;
1759 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1760 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1761 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1762 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 1763
e35e4d28 1764 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 1765 if (result) {
1766 rdev->wiphy.retry_short = old_retry_short;
1767 rdev->wiphy.retry_long = old_retry_long;
1768 rdev->wiphy.frag_threshold = old_frag_threshold;
1769 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1770 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1771 }
1772 }
72bdcf34 1773
306d6112 1774 bad_res:
4bbf4d56 1775 mutex_unlock(&rdev->mtx);
f444de05
JB		 1776 if (netdev)
1777 dev_put(netdev);
55682965
JB		 1778 return result;
1779}
1780
71bbc994
JB		 1781static inline u64 wdev_id(struct wireless_dev *wdev)
1782{
1783 return (u64)wdev->identifier |
1784 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1785}
55682965 1786
683b6d3b
JB		 1787static int nl80211_send_chandef(struct sk_buff *msg,
1788 struct cfg80211_chan_def *chandef)
1789{
9f5e8f6e 1790 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 1791
683b6d3b
JB		 1792 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1793 chandef->chan->center_freq))
1794 return -ENOBUFS;
3d9d1d66
JB		 1795 switch (chandef->width) {
1796 case NL80211_CHAN_WIDTH_20_NOHT:
1797 case NL80211_CHAN_WIDTH_20:
1798 case NL80211_CHAN_WIDTH_40:
1799 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1800 cfg80211_get_chandef_type(chandef)))
1801 return -ENOBUFS;
1802 break;
1803 default:
1804 break;
1805 }
1806 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1807 return -ENOBUFS;
1808 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1809 return -ENOBUFS;
1810 if (chandef->center_freq2 &&
1811 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 1812 return -ENOBUFS;
1813 return 0;
1814}
1815
15e47304 1816static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 1817 struct cfg80211_registered_device *rdev,
72fb2abc 1818 struct wireless_dev *wdev)
55682965 1819{
72fb2abc 1820 struct net_device *dev = wdev->netdev;
55682965
JB		 1821 void *hdr;
1822
15e47304 1823 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 1824 if (!hdr)
1825 return -1;
1826
72fb2abc
JB		 1827 if (dev &&
1828 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 1829 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 1830 goto nla_put_failure;
1831
1832 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1833 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 1834 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 1835 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 1836 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1837 rdev->devlist_generation ^
1838 (cfg80211_rdev_list_generation << 2)))
1839 goto nla_put_failure;
f5ea9120 1840
5b7ccaf3 1841 if (rdev->ops->get_channel) {
683b6d3b
JB		 1842 int ret;
1843 struct cfg80211_chan_def chandef;
1844
1845 ret = rdev_get_channel(rdev, wdev, &chandef);
1846 if (ret == 0) {
1847 if (nl80211_send_chandef(msg, &chandef))
1848 goto nla_put_failure;
1849 }
d91df0e3
PF		 1850 }
1851
b84e7a05
AQ		 1852 if (wdev->ssid_len) {
1853 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1854 goto nla_put_failure;
1855 }
1856
55682965
JB		 1857 return genlmsg_end(msg, hdr);
1858
1859 nla_put_failure:
bc3ed28c
TG		 1860 genlmsg_cancel(msg, hdr);
1861 return -EMSGSIZE;
55682965
JB		 1862}
1863
1864static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1865{
1866 int wp_idx = 0;
1867 int if_idx = 0;
1868 int wp_start = cb->args[0];
1869 int if_start = cb->args[1];
f5ea9120 1870 struct cfg80211_registered_device *rdev;
55682965
JB		 1871 struct wireless_dev *wdev;
1872
a1794390 1873 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1874 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1875 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1876 continue;
bba95fef
JB		 1877 if (wp_idx < wp_start) {
1878 wp_idx++;
55682965 1879 continue;
bba95fef 1880 }
55682965
JB		 1881 if_idx = 0;
1882
f5ea9120 1883 mutex_lock(&rdev->devlist_mtx);
89a54e48 1884 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1885 if (if_idx < if_start) {
1886 if_idx++;
55682965 1887 continue;
bba95fef 1888 }
15e47304 1889 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 1890 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 1891 rdev, wdev) < 0) {
f5ea9120 1892 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1893 goto out;
1894 }
1895 if_idx++;
55682965 1896 }
f5ea9120 1897 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1898
1899 wp_idx++;
55682965 1900 }
bba95fef 1901 out:
a1794390 1902 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1903
1904 cb->args[0] = wp_idx;
1905 cb->args[1] = if_idx;
1906
1907 return skb->len;
1908}
1909
1910static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1911{
1912 struct sk_buff *msg;
4c476991 1913 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 1914 struct wireless_dev *wdev = info->user_ptr[1];
55682965 1915
fd2120ca 1916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1917 if (!msg)
4c476991 1918 return -ENOMEM;
55682965 1919
15e47304 1920 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 1921 dev, wdev) < 0) {
4c476991
JB		 1922 nlmsg_free(msg);
1923 return -ENOBUFS;
1924 }
55682965 1925
134e6375 1926 return genlmsg_reply(msg, info);
55682965
JB		 1927}
1928
66f7ac50
MW		 1929static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1930 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1931 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1932 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1933 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1934 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1935};
1936
1937static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1938{
1939 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1940 int flag;
1941
1942 *mntrflags = 0;
1943
1944 if (!nla)
1945 return -EINVAL;
1946
1947 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1948 nla, mntr_flags_policy))
1949 return -EINVAL;
1950
1951 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1952 if (flags[flag])
1953 *mntrflags |= (1<<flag);
1954
1955 return 0;
1956}
1957
9bc383de 1958static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1959 struct net_device *netdev, u8 use_4addr,
1960 enum nl80211_iftype iftype)
9bc383de 1961{
ad4bb6f8 1962 if (!use_4addr) {
f350a0a8 1963 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1964 return -EBUSY;
9bc383de 1965 return 0;
ad4bb6f8 1966 }
9bc383de
JB		 1967
1968 switch (iftype) {
1969 case NL80211_IFTYPE_AP_VLAN:
1970 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1971 return 0;
1972 break;
1973 case NL80211_IFTYPE_STATION:
1974 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1975 return 0;
1976 break;
1977 default:
1978 break;
1979 }
1980
1981 return -EOPNOTSUPP;
1982}
1983
55682965
JB		 1984static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1985{
4c476991 1986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1987 struct vif_params params;
e36d56b6 1988 int err;
04a773ad 1989 enum nl80211_iftype otype, ntype;
4c476991 1990 struct net_device *dev = info->user_ptr[1];
92ffe055 1991 u32 _flags, *flags = NULL;
ac7f9cfa 1992 bool change = false;
55682965 1993
2ec600d6
LCC		 1994 memset(&params, 0, sizeof(params));
1995
04a773ad 1996 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1997
723b038d 1998 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1999 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2000 if (otype != ntype)
ac7f9cfa 2001 change = true;
4c476991
JB		 2002 if (ntype > NL80211_IFTYPE_MAX)
2003 return -EINVAL;
723b038d
JB		 2004 }
2005
92ffe055 2006 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2007 struct wireless_dev *wdev = dev->ieee80211_ptr;
2008
4c476991
JB		 2009 if (ntype != NL80211_IFTYPE_MESH_POINT)
2010 return -EINVAL;
29cbe68c
JB		 2011 if (netif_running(dev))
2012 return -EBUSY;
2013
2014 wdev_lock(wdev);
2015 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2016 IEEE80211_MAX_MESH_ID_LEN);
2017 wdev->mesh_id_up_len =
2018 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2019 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2020 wdev->mesh_id_up_len);
2021 wdev_unlock(wdev);
2ec600d6
LCC		 2022 }
2023
8b787643
FF		 2024 if (info->attrs[NL80211_ATTR_4ADDR]) {
2025 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2026 change = true;
ad4bb6f8 2027 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2028 if (err)
4c476991 2029 return err;
8b787643
FF		 2030 } else {
2031 params.use_4addr = -1;
2032 }
2033
92ffe055 2034 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2035 if (ntype != NL80211_IFTYPE_MONITOR)
2036 return -EINVAL;
92ffe055
JB		 2037 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2038 &_flags);
ac7f9cfa 2039 if (err)
4c476991 2040 return err;
ac7f9cfa
JB		 2041
2042 flags = &_flags;
2043 change = true;
92ffe055 2044 }
3b85875a 2045
ac7f9cfa 2046 if (change)
3d54d255 2047 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2048 else
2049 err = 0;
60719ffd 2050
9bc383de
JB		 2051 if (!err && params.use_4addr != -1)
2052 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2053
55682965
JB		 2054 return err;
2055}
2056
2057static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2058{
4c476991 2059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2060 struct vif_params params;
84efbb84 2061 struct wireless_dev *wdev;
1c90f9d4 2062 struct sk_buff *msg;
55682965
JB		 2063 int err;
2064 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2065 u32 flags;
55682965 2066
2ec600d6
LCC		 2067 memset(&params, 0, sizeof(params));
2068
55682965
JB		 2069 if (!info->attrs[NL80211_ATTR_IFNAME])
2070 return -EINVAL;
2071
2072 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2073 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2074 if (type > NL80211_IFTYPE_MAX)
2075 return -EINVAL;
2076 }
2077
79c97e97 2078 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2079 !(rdev->wiphy.interface_modes & (1 << type)))
2080 return -EOPNOTSUPP;
55682965 2081
9bc383de 2082 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2083 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2084 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2085 if (err)
4c476991 2086 return err;
9bc383de 2087 }
8b787643 2088
1c90f9d4
JB		 2089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2090 if (!msg)
2091 return -ENOMEM;
2092
66f7ac50
MW		 2093 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2094 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2095 &flags);
e35e4d28
HG		 2096 wdev = rdev_add_virtual_intf(rdev,
2097 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2098 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2099 if (IS_ERR(wdev)) {
2100 nlmsg_free(msg);
84efbb84 2101 return PTR_ERR(wdev);
1c90f9d4 2102 }
2ec600d6 2103
98104fde
JB		 2104 switch (type) {
2105 case NL80211_IFTYPE_MESH_POINT:
2106 if (!info->attrs[NL80211_ATTR_MESH_ID])
2107 break;
29cbe68c
JB		 2108 wdev_lock(wdev);
2109 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2110 IEEE80211_MAX_MESH_ID_LEN);
2111 wdev->mesh_id_up_len =
2112 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2113 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2114 wdev->mesh_id_up_len);
2115 wdev_unlock(wdev);
98104fde
JB		 2116 break;
2117 case NL80211_IFTYPE_P2P_DEVICE:
2118 /*
2119 * P2P Device doesn't have a netdev, so doesn't go
2120 * through the netdev notifier and must be added here
2121 */
2122 mutex_init(&wdev->mtx);
2123 INIT_LIST_HEAD(&wdev->event_list);
2124 spin_lock_init(&wdev->event_lock);
2125 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2126 spin_lock_init(&wdev->mgmt_registrations_lock);
2127
2128 mutex_lock(&rdev->devlist_mtx);
2129 wdev->identifier = ++rdev->wdev_id;
2130 list_add_rcu(&wdev->list, &rdev->wdev_list);
2131 rdev->devlist_generation++;
2132 mutex_unlock(&rdev->devlist_mtx);
2133 break;
2134 default:
2135 break;
29cbe68c
JB		 2136 }
2137
15e47304 2138 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2139 rdev, wdev) < 0) {
2140 nlmsg_free(msg);
2141 return -ENOBUFS;
2142 }
2143
2144 return genlmsg_reply(msg, info);
55682965
JB		 2145}
2146
2147static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2148{
4c476991 2149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2150 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2151
4c476991
JB		 2152 if (!rdev->ops->del_virtual_intf)
2153 return -EOPNOTSUPP;
55682965 2154
84efbb84
JB		 2155 /*
2156 * If we remove a wireless device without a netdev then clear
2157 * user_ptr[1] so that nl80211_post_doit won't dereference it
2158 * to check if it needs to do dev_put(). Otherwise it crashes
2159 * since the wdev has been freed, unlike with a netdev where
2160 * we need the dev_put() for the netdev to really be freed.
2161 */
2162 if (!wdev->netdev)
2163 info->user_ptr[1] = NULL;
2164
e35e4d28 2165 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2166}
2167
1d9d9213
SW		 2168static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2169{
2170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2171 struct net_device *dev = info->user_ptr[1];
2172 u16 noack_map;
2173
2174 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2175 return -EINVAL;
2176
2177 if (!rdev->ops->set_noack_map)
2178 return -EOPNOTSUPP;
2179
2180 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2181
e35e4d28 2182 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2183}
2184
41ade00f
JB		 2185struct get_key_cookie {
2186 struct sk_buff *msg;
2187 int error;
b9454e83 2188 int idx;
41ade00f
JB		 2189};
2190
2191static void get_key_callback(void *c, struct key_params *params)
2192{
b9454e83 2193 struct nlattr *key;
41ade00f
JB		 2194 struct get_key_cookie *cookie = c;
2195
9360ffd1
DM		 2196 if ((params->key &&
2197 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2198 params->key_len, params->key)) ||
2199 (params->seq &&
2200 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2201 params->seq_len, params->seq)) ||
2202 (params->cipher &&
2203 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2204 params->cipher)))
2205 goto nla_put_failure;
41ade00f 2206
b9454e83
JB		 2207 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2208 if (!key)
2209 goto nla_put_failure;
2210
9360ffd1
DM		 2211 if ((params->key &&
2212 nla_put(cookie->msg, NL80211_KEY_DATA,
2213 params->key_len, params->key)) ||
2214 (params->seq &&
2215 nla_put(cookie->msg, NL80211_KEY_SEQ,
2216 params->seq_len, params->seq)) ||
2217 (params->cipher &&
2218 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2219 params->cipher)))
2220 goto nla_put_failure;
b9454e83 2221
9360ffd1
DM		 2222 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2223 goto nla_put_failure;
b9454e83
JB		 2224
2225 nla_nest_end(cookie->msg, key);
2226
41ade00f
JB		 2227 return;
2228 nla_put_failure:
2229 cookie->error = 1;
2230}
2231
2232static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2233{
4c476991 2234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2235 int err;
4c476991 2236 struct net_device *dev = info->user_ptr[1];
41ade00f 2237 u8 key_idx = 0;
e31b8213
JB		 2238 const u8 *mac_addr = NULL;
2239 bool pairwise;
41ade00f
JB		 2240 struct get_key_cookie cookie = {
2241 .error = 0,
2242 };
2243 void *hdr;
2244 struct sk_buff *msg;
2245
2246 if (info->attrs[NL80211_ATTR_KEY_IDX])
2247 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2248
3cfcf6ac 2249 if (key_idx > 5)
41ade00f
JB		 2250 return -EINVAL;
2251
2252 if (info->attrs[NL80211_ATTR_MAC])
2253 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2254
e31b8213
JB		 2255 pairwise = !!mac_addr;
2256 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2257 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2258 if (kt >= NUM_NL80211_KEYTYPES)
2259 return -EINVAL;
2260 if (kt != NL80211_KEYTYPE_GROUP &&
2261 kt != NL80211_KEYTYPE_PAIRWISE)
2262 return -EINVAL;
2263 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2264 }
2265
4c476991
JB		 2266 if (!rdev->ops->get_key)
2267 return -EOPNOTSUPP;
41ade00f 2268
fd2120ca 2269 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2270 if (!msg)
2271 return -ENOMEM;
41ade00f 2272
15e47304 2273 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2274 NL80211_CMD_NEW_KEY);
4c476991
JB		 2275 if (IS_ERR(hdr))
2276 return PTR_ERR(hdr);
41ade00f
JB		 2277
2278 cookie.msg = msg;
b9454e83 2279 cookie.idx = key_idx;
41ade00f 2280
9360ffd1
DM		 2281 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2282 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2283 goto nla_put_failure;
2284 if (mac_addr &&
2285 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2286 goto nla_put_failure;
41ade00f 2287
e31b8213
JB		 2288 if (pairwise && mac_addr &&
2289 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2290 return -ENOENT;
2291
e35e4d28
HG		 2292 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2293 get_key_callback);
41ade00f
JB		 2294
2295 if (err)
6c95e2a2 2296 goto free_msg;
41ade00f
JB		 2297
2298 if (cookie.error)
2299 goto nla_put_failure;
2300
2301 genlmsg_end(msg, hdr);
4c476991 2302 return genlmsg_reply(msg, info);
41ade00f
JB		 2303
2304 nla_put_failure:
2305 err = -ENOBUFS;
6c95e2a2 2306 free_msg:
41ade00f 2307 nlmsg_free(msg);
41ade00f
JB		 2308 return err;
2309}
2310
2311static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2312{
4c476991 2313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2314 struct key_parse key;
41ade00f 2315 int err;
4c476991 2316 struct net_device *dev = info->user_ptr[1];
41ade00f 2317
b9454e83
JB		 2318 err = nl80211_parse_key(info, &key);
2319 if (err)
2320 return err;
41ade00f 2321
b9454e83 2322 if (key.idx < 0)
41ade00f
JB		 2323 return -EINVAL;
2324
b9454e83
JB		 2325 /* only support setting default key */
2326 if (!key.def && !key.defmgmt)
41ade00f
JB		 2327 return -EINVAL;
2328
dbd2fd65 2329 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2330
dbd2fd65
JB		 2331 if (key.def) {
2332 if (!rdev->ops->set_default_key) {
2333 err = -EOPNOTSUPP;
2334 goto out;
2335 }
41ade00f 2336
dbd2fd65
JB		 2337 err = nl80211_key_allowed(dev->ieee80211_ptr);
2338 if (err)
2339 goto out;
2340
e35e4d28 2341 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2342 key.def_uni, key.def_multi);
2343
2344 if (err)
2345 goto out;
fffd0934 2346
3d23e349 2347#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2348 dev->ieee80211_ptr->wext.default_key = key.idx;
2349#endif
2350 } else {
2351 if (key.def_uni || !key.def_multi) {
2352 err = -EINVAL;
2353 goto out;
2354 }
2355
2356 if (!rdev->ops->set_default_mgmt_key) {
2357 err = -EOPNOTSUPP;
2358 goto out;
2359 }
2360
2361 err = nl80211_key_allowed(dev->ieee80211_ptr);
2362 if (err)
2363 goto out;
2364
e35e4d28 2365 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2366 if (err)
2367 goto out;
2368
2369#ifdef CONFIG_CFG80211_WEXT
2370 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2371#endif
dbd2fd65
JB		 2372 }
2373
2374 out:
fffd0934 2375 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2376
41ade00f
JB		 2377 return err;
2378}
2379
2380static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2381{
4c476991 2382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2383 int err;
4c476991 2384 struct net_device *dev = info->user_ptr[1];
b9454e83 2385 struct key_parse key;
e31b8213 2386 const u8 *mac_addr = NULL;
41ade00f 2387
b9454e83
JB		 2388 err = nl80211_parse_key(info, &key);
2389 if (err)
2390 return err;
41ade00f 2391
b9454e83 2392 if (!key.p.key)
41ade00f
JB		 2393 return -EINVAL;
2394
41ade00f
JB		 2395 if (info->attrs[NL80211_ATTR_MAC])
2396 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2397
e31b8213
JB		 2398 if (key.type == -1) {
2399 if (mac_addr)
2400 key.type = NL80211_KEYTYPE_PAIRWISE;
2401 else
2402 key.type = NL80211_KEYTYPE_GROUP;
2403 }
2404
2405 /* for now */
2406 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2407 key.type != NL80211_KEYTYPE_GROUP)
2408 return -EINVAL;
2409
4c476991
JB		 2410 if (!rdev->ops->add_key)
2411 return -EOPNOTSUPP;
25e47c18 2412
e31b8213
JB		 2413 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2414 key.type == NL80211_KEYTYPE_PAIRWISE,
2415 mac_addr))
4c476991 2416 return -EINVAL;
41ade00f 2417
fffd0934
JB		 2418 wdev_lock(dev->ieee80211_ptr);
2419 err = nl80211_key_allowed(dev->ieee80211_ptr);
2420 if (!err)
e35e4d28
HG		 2421 err = rdev_add_key(rdev, dev, key.idx,
2422 key.type == NL80211_KEYTYPE_PAIRWISE,
2423 mac_addr, &key.p);
fffd0934 2424 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2425
41ade00f
JB		 2426 return err;
2427}
2428
2429static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2430{
4c476991 2431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2432 int err;
4c476991 2433 struct net_device *dev = info->user_ptr[1];
41ade00f 2434 u8 *mac_addr = NULL;
b9454e83 2435 struct key_parse key;
41ade00f 2436
b9454e83
JB		 2437 err = nl80211_parse_key(info, &key);
2438 if (err)
2439 return err;
41ade00f
JB		 2440
2441 if (info->attrs[NL80211_ATTR_MAC])
2442 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2443
e31b8213
JB		 2444 if (key.type == -1) {
2445 if (mac_addr)
2446 key.type = NL80211_KEYTYPE_PAIRWISE;
2447 else
2448 key.type = NL80211_KEYTYPE_GROUP;
2449 }
2450
2451 /* for now */
2452 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2453 key.type != NL80211_KEYTYPE_GROUP)
2454 return -EINVAL;
2455
4c476991
JB		 2456 if (!rdev->ops->del_key)
2457 return -EOPNOTSUPP;
41ade00f 2458
fffd0934
JB		 2459 wdev_lock(dev->ieee80211_ptr);
2460 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2461
2462 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2463 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2464 err = -ENOENT;
2465
fffd0934 2466 if (!err)
e35e4d28
HG		 2467 err = rdev_del_key(rdev, dev, key.idx,
2468 key.type == NL80211_KEYTYPE_PAIRWISE,
2469 mac_addr);
41ade00f 2470
3d23e349 2471#ifdef CONFIG_CFG80211_WEXT
08645126 2472 if (!err) {
b9454e83 2473 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2474 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2475 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2476 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2477 }
2478#endif
fffd0934 2479 wdev_unlock(dev->ieee80211_ptr);
08645126 2480
41ade00f
JB		 2481 return err;
2482}
2483
8860020e
JB		 2484static int nl80211_parse_beacon(struct genl_info *info,
2485 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2486{
8860020e 2487 bool haveinfo = false;
ed1b6cc7 2488
9946ecfb
JM		 2489 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2490 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2491 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2492 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2493 return -EINVAL;
2494
8860020e 2495 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2496
ed1b6cc7 2497 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2498 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2499 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2500 if (!bcn->head_len)
2501 return -EINVAL;
2502 haveinfo = true;
ed1b6cc7
JB		 2503 }
2504
2505 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2506 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2507 bcn->tail_len =
ed1b6cc7 2508 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2509 haveinfo = true;
ed1b6cc7
JB		 2510 }
2511
4c476991
JB		 2512 if (!haveinfo)
2513 return -EINVAL;
3b85875a 2514
9946ecfb 2515 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2516 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2517 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2518 }
2519
2520 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2521 bcn->proberesp_ies =
9946ecfb 2522 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2523 bcn->proberesp_ies_len =
9946ecfb
JM		 2524 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2525 }
2526
2527 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2528 bcn->assocresp_ies =
9946ecfb 2529 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2530 bcn->assocresp_ies_len =
9946ecfb
JM		 2531 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2532 }
2533
00f740e1 2534 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2535 bcn->probe_resp =
00f740e1 2536 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2537 bcn->probe_resp_len =
00f740e1
AN		 2538 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2539 }
2540
8860020e
JB		 2541 return 0;
2542}
2543
46c1dd0c
FF		 2544static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2545 struct cfg80211_ap_settings *params)
2546{
2547 struct wireless_dev *wdev;
2548 bool ret = false;
2549
2550 mutex_lock(&rdev->devlist_mtx);
2551
89a54e48 2552 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2553 if (wdev->iftype != NL80211_IFTYPE_AP &&
2554 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2555 continue;
2556
683b6d3b 2557 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2558 continue;
2559
683b6d3b 2560 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2561 ret = true;
2562 break;
2563 }
2564
2565 mutex_unlock(&rdev->devlist_mtx);
2566
2567 return ret;
2568}
2569
e39e5b5e
JM		 2570static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2571 enum nl80211_auth_type auth_type,
2572 enum nl80211_commands cmd)
2573{
2574 if (auth_type > NL80211_AUTHTYPE_MAX)
2575 return false;
2576
2577 switch (cmd) {
2578 case NL80211_CMD_AUTHENTICATE:
2579 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2580 auth_type == NL80211_AUTHTYPE_SAE)
2581 return false;
2582 return true;
2583 case NL80211_CMD_CONNECT:
2584 case NL80211_CMD_START_AP:
2585 /* SAE not supported yet */
2586 if (auth_type == NL80211_AUTHTYPE_SAE)
2587 return false;
2588 return true;
2589 default:
2590 return false;
2591 }
2592}
2593
8860020e
JB		 2594static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2595{
2596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2597 struct net_device *dev = info->user_ptr[1];
2598 struct wireless_dev *wdev = dev->ieee80211_ptr;
2599 struct cfg80211_ap_settings params;
2600 int err;
2601
2602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2603 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2604 return -EOPNOTSUPP;
2605
2606 if (!rdev->ops->start_ap)
2607 return -EOPNOTSUPP;
2608
2609 if (wdev->beacon_interval)
2610 return -EALREADY;
2611
2612 memset(&params, 0, sizeof(params));
2613
2614 /* these are required for START_AP */
2615 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2616 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2617 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2618 return -EINVAL;
2619
2620 err = nl80211_parse_beacon(info, &params.beacon);
2621 if (err)
2622 return err;
2623
2624 params.beacon_interval =
2625 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2626 params.dtim_period =
2627 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2628
2629 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2630 if (err)
2631 return err;
2632
2633 /*
2634 * In theory, some of these attributes should be required here
2635 * but since they were not used when the command was originally
2636 * added, keep them optional for old user space programs to let
2637 * them continue to work with drivers that do not need the
2638 * additional information -- drivers must check!
2639 */
2640 if (info->attrs[NL80211_ATTR_SSID]) {
2641 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2642 params.ssid_len =
2643 nla_len(info->attrs[NL80211_ATTR_SSID]);
2644 if (params.ssid_len == 0 ||
2645 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2646 return -EINVAL;
2647 }
2648
2649 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2650 params.hidden_ssid = nla_get_u32(
2651 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2652 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2653 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2654 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2655 return -EINVAL;
2656 }
2657
2658 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2659
2660 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2661 params.auth_type = nla_get_u32(
2662 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 2663 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2664 NL80211_CMD_START_AP))
8860020e
JB		 2665 return -EINVAL;
2666 } else
2667 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2668
2669 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2670 NL80211_MAX_NR_CIPHER_SUITES);
2671 if (err)
2672 return err;
2673
1b658f11
VT		 2674 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2675 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2676 return -EOPNOTSUPP;
2677 params.inactivity_timeout = nla_get_u16(
2678 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2679 }
2680
53cabad7
JB		 2681 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2682 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2683 return -EINVAL;
2684 params.p2p_ctwindow =
2685 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2686 if (params.p2p_ctwindow > 127)
2687 return -EINVAL;
2688 if (params.p2p_ctwindow != 0 &&
2689 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2690 return -EINVAL;
2691 }
2692
2693 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2694 u8 tmp;
2695
2696 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2697 return -EINVAL;
2698 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2699 if (tmp > 1)
2700 return -EINVAL;
2701 params.p2p_opp_ps = tmp;
2702 if (params.p2p_opp_ps != 0 &&
2703 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2704 return -EINVAL;
2705 }
2706
aa430da4 2707 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 2708 err = nl80211_parse_chandef(rdev, info, &params.chandef);
2709 if (err)
2710 return err;
2711 } else if (wdev->preset_chandef.chan) {
2712 params.chandef = wdev->preset_chandef;
46c1dd0c 2713 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2714 return -EINVAL;
2715
683b6d3b 2716 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 2717 return -EINVAL;
2718
e4e32459 2719 mutex_lock(&rdev->devlist_mtx);
683b6d3b 2720 err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan,
e4e32459
MK		 2721 CHAN_MODE_SHARED);
2722 mutex_unlock(&rdev->devlist_mtx);
2723
2724 if (err)
2725 return err;
2726
e35e4d28 2727 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 2728 if (!err) {
683b6d3b 2729 wdev->preset_chandef = params.chandef;
8860020e 2730 wdev->beacon_interval = params.beacon_interval;
683b6d3b 2731 wdev->channel = params.chandef.chan;
06e191e2
AQ		 2732 wdev->ssid_len = params.ssid_len;
2733 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 2734 }
56d1893d 2735 return err;
ed1b6cc7
JB		 2736}
2737
8860020e
JB		 2738static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2739{
2740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2741 struct net_device *dev = info->user_ptr[1];
2742 struct wireless_dev *wdev = dev->ieee80211_ptr;
2743 struct cfg80211_beacon_data params;
2744 int err;
2745
2746 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2747 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2748 return -EOPNOTSUPP;
2749
2750 if (!rdev->ops->change_beacon)
2751 return -EOPNOTSUPP;
2752
2753 if (!wdev->beacon_interval)
2754 return -EINVAL;
2755
2756 err = nl80211_parse_beacon(info, &params);
2757 if (err)
2758 return err;
2759
e35e4d28 2760 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 2761}
2762
2763static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2764{
4c476991
JB		 2765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2766 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2767
60771780 2768 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2769}
2770
5727ef1b
JB		 2771static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2772 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2773 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2774 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2775 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2776 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2777 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2778};
2779
eccb8e8f 2780static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2781 enum nl80211_iftype iftype,
eccb8e8f 2782 struct station_parameters *params)
5727ef1b
JB		 2783{
2784 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2785 struct nlattr *nla;
5727ef1b
JB		 2786 int flag;
2787
eccb8e8f
JB		 2788 /*
2789 * Try parsing the new attribute first so userspace
2790 * can specify both for older kernels.
2791 */
2792 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2793 if (nla) {
2794 struct nl80211_sta_flag_update *sta_flags;
2795
2796 sta_flags = nla_data(nla);
2797 params->sta_flags_mask = sta_flags->mask;
2798 params->sta_flags_set = sta_flags->set;
2799 if ((params->sta_flags_mask |
2800 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2801 return -EINVAL;
2802 return 0;
2803 }
2804
2805 /* if present, parse the old attribute */
5727ef1b 2806
eccb8e8f 2807 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2808 if (!nla)
2809 return 0;
2810
2811 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2812 nla, sta_flags_policy))
2813 return -EINVAL;
2814
bdd3ae3d
JB		 2815 /*
2816 * Only allow certain flags for interface types so that
2817 * other attributes are silently ignored. Remember that
2818 * this is backward compatibility code with old userspace
2819 * and shouldn't be hit in other cases anyway.
2820 */
2821 switch (iftype) {
2822 case NL80211_IFTYPE_AP:
2823 case NL80211_IFTYPE_AP_VLAN:
2824 case NL80211_IFTYPE_P2P_GO:
2825 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2826 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2827 BIT(NL80211_STA_FLAG_WME) |
2828 BIT(NL80211_STA_FLAG_MFP);
2829 break;
2830 case NL80211_IFTYPE_P2P_CLIENT:
2831 case NL80211_IFTYPE_STATION:
2832 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2833 BIT(NL80211_STA_FLAG_TDLS_PEER);
2834 break;
2835 case NL80211_IFTYPE_MESH_POINT:
2836 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2837 BIT(NL80211_STA_FLAG_MFP) |
2838 BIT(NL80211_STA_FLAG_AUTHORIZED);
2839 default:
2840 return -EINVAL;
2841 }
5727ef1b 2842
3383b5a6
JB		 2843 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2844 if (flags[flag]) {
eccb8e8f 2845 params->sta_flags_set |= (1<<flag);
5727ef1b 2846
3383b5a6
JB		 2847 /* no longer support new API additions in old API */
2848 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2849 return -EINVAL;
2850 }
2851 }
2852
5727ef1b
JB		 2853 return 0;
2854}
2855
c8dcfd8a
FF		 2856static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2857 int attr)
2858{
2859 struct nlattr *rate;
8eb41c8d
VK		 2860 u32 bitrate;
2861 u16 bitrate_compat;
c8dcfd8a
FF		 2862
2863 rate = nla_nest_start(msg, attr);
2864 if (!rate)
db9c64cf 2865 return false;
c8dcfd8a
FF		 2866
2867 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2868 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 2869 /* report 16-bit bitrate only if we can */
2870 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 2871 if (bitrate > 0 &&
2872 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
2873 return false;
2874 if (bitrate_compat > 0 &&
2875 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
2876 return false;
2877
2878 if (info->flags & RATE_INFO_FLAGS_MCS) {
2879 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
2880 return false;
2881 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2882 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2883 return false;
2884 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2885 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2886 return false;
2887 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
2888 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
2889 return false;
2890 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
2891 return false;
2892 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2893 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2894 return false;
2895 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
2896 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
2897 return false;
2898 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
2899 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
2900 return false;
2901 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
2902 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
2903 return false;
2904 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2905 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2906 return false;
2907 }
c8dcfd8a
FF		 2908
2909 nla_nest_end(msg, rate);
2910 return true;
c8dcfd8a
FF		 2911}
2912
15e47304 2913static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 2914 int flags,
2915 struct cfg80211_registered_device *rdev,
2916 struct net_device *dev,
98b62183 2917 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2918{
2919 void *hdr;
f4263c98 2920 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 2921
15e47304 2922 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 2923 if (!hdr)
2924 return -1;
2925
9360ffd1
DM		 2926 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2927 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2928 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2929 goto nla_put_failure;
f5ea9120 2930
2ec600d6
LCC		 2931 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2932 if (!sinfoattr)
fd5b74dc 2933 goto nla_put_failure;
9360ffd1
DM		 2934 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2935 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2936 sinfo->connected_time))
2937 goto nla_put_failure;
2938 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2939 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2940 sinfo->inactive_time))
2941 goto nla_put_failure;
2942 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2943 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2944 sinfo->rx_bytes))
2945 goto nla_put_failure;
2946 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2947 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2948 sinfo->tx_bytes))
2949 goto nla_put_failure;
2950 if ((sinfo->filled & STATION_INFO_LLID) &&
2951 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2952 goto nla_put_failure;
2953 if ((sinfo->filled & STATION_INFO_PLID) &&
2954 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2955 goto nla_put_failure;
2956 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2957 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2958 sinfo->plink_state))
2959 goto nla_put_failure;
66266b3a
JL		 2960 switch (rdev->wiphy.signal_type) {
2961 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2962 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2963 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2964 sinfo->signal))
2965 goto nla_put_failure;
2966 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2967 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2968 sinfo->signal_avg))
2969 goto nla_put_failure;
66266b3a
JL		 2970 break;
2971 default:
2972 break;
2973 }
420e7fab 2974 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2975 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2976 NL80211_STA_INFO_TX_BITRATE))
2977 goto nla_put_failure;
2978 }
2979 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2980 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2981 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2982 goto nla_put_failure;
420e7fab 2983 }
9360ffd1
DM		 2984 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2985 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2986 sinfo->rx_packets))
2987 goto nla_put_failure;
2988 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2989 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2990 sinfo->tx_packets))
2991 goto nla_put_failure;
2992 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2993 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2994 sinfo->tx_retries))
2995 goto nla_put_failure;
2996 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2997 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2998 sinfo->tx_failed))
2999 goto nla_put_failure;
3000 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3001 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3002 sinfo->beacon_loss_count))
3003 goto nla_put_failure;
f4263c98
PS		 3004 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3005 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3006 if (!bss_param)
3007 goto nla_put_failure;
3008
9360ffd1
DM		 3009 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3010 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3011 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3012 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3013 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3014 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3015 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3016 sinfo->bss_param.dtim_period) ||
3017 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3018 sinfo->bss_param.beacon_interval))
3019 goto nla_put_failure;
f4263c98
PS		 3020
3021 nla_nest_end(msg, bss_param);
3022 }
9360ffd1
DM		 3023 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3024 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3025 sizeof(struct nl80211_sta_flag_update),
3026 &sinfo->sta_flags))
3027 goto nla_put_failure;
7eab0f64
JL		 3028 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3029 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3030 sinfo->t_offset))
3031 goto nla_put_failure;
2ec600d6 3032 nla_nest_end(msg, sinfoattr);
fd5b74dc 3033
9360ffd1
DM		 3034 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3035 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3036 sinfo->assoc_req_ies))
3037 goto nla_put_failure;
50d3dfb7 3038
fd5b74dc
JB		 3039 return genlmsg_end(msg, hdr);
3040
3041 nla_put_failure:
bc3ed28c
TG		 3042 genlmsg_cancel(msg, hdr);
3043 return -EMSGSIZE;
fd5b74dc
JB		 3044}
3045
2ec600d6 3046static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3047 struct netlink_callback *cb)
2ec600d6 3048{
2ec600d6
LCC		 3049 struct station_info sinfo;
3050 struct cfg80211_registered_device *dev;
bba95fef 3051 struct net_device *netdev;
2ec600d6 3052 u8 mac_addr[ETH_ALEN];
bba95fef 3053 int sta_idx = cb->args[1];
2ec600d6 3054 int err;
2ec600d6 3055
67748893
JB		 3056 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3057 if (err)
3058 return err;
bba95fef
JB		 3059
3060 if (!dev->ops->dump_station) {
eec60b03 3061 err = -EOPNOTSUPP;
bba95fef
JB		 3062 goto out_err;
3063 }
3064
bba95fef 3065 while (1) {
f612cedf 3066 memset(&sinfo, 0, sizeof(sinfo));
e35e4d28
HG		 3067 err = rdev_dump_station(dev, netdev, sta_idx,
3068 mac_addr, &sinfo);
bba95fef
JB		 3069 if (err == -ENOENT)
3070 break;
3071 if (err)
3b85875a 3072 goto out_err;
bba95fef
JB		 3073
3074 if (nl80211_send_station(skb,
15e47304 3075 NETLINK_CB(cb->skb).portid,
bba95fef 3076 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 3077 dev, netdev, mac_addr,
bba95fef
JB		 3078 &sinfo) < 0)
3079 goto out;
3080
3081 sta_idx++;
3082 }
3083
3084
3085 out:
3086 cb->args[1] = sta_idx;
3087 err = skb->len;
bba95fef 3088 out_err:
67748893 3089 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 3090
3091 return err;
2ec600d6 3092}
fd5b74dc 3093
5727ef1b
JB		 3094static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3095{
4c476991
JB		 3096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3097 struct net_device *dev = info->user_ptr[1];
2ec600d6 3098 struct station_info sinfo;
fd5b74dc
JB		 3099 struct sk_buff *msg;
3100 u8 *mac_addr = NULL;
4c476991 3101 int err;
fd5b74dc 3102
2ec600d6 3103 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3104
3105 if (!info->attrs[NL80211_ATTR_MAC])
3106 return -EINVAL;
3107
3108 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3109
4c476991
JB		 3110 if (!rdev->ops->get_station)
3111 return -EOPNOTSUPP;
3b85875a 3112
e35e4d28 3113 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3114 if (err)
4c476991 3115 return err;
2ec600d6 3116
fd2120ca 3117 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3118 if (!msg)
4c476991 3119 return -ENOMEM;
fd5b74dc 3120
15e47304 3121 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3122 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3123 nlmsg_free(msg);
3124 return -ENOBUFS;
3125 }
3b85875a 3126
4c476991 3127 return genlmsg_reply(msg, info);
5727ef1b
JB		 3128}
3129
3130/*
c258d2de 3131 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3132 */
80b99899
JB		 3133static struct net_device *get_vlan(struct genl_info *info,
3134 struct cfg80211_registered_device *rdev)
5727ef1b 3135{
463d0183 3136 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3137 struct net_device *v;
3138 int ret;
3139
3140 if (!vlanattr)
3141 return NULL;
3142
3143 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3144 if (!v)
3145 return ERR_PTR(-ENODEV);
3146
3147 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3148 ret = -EINVAL;
3149 goto error;
5727ef1b 3150 }
80b99899
JB		 3151
3152 if (!netif_running(v)) {
3153 ret = -ENETDOWN;
3154 goto error;
3155 }
3156
3157 return v;
3158 error:
3159 dev_put(v);
3160 return ERR_PTR(ret);
5727ef1b
JB		 3161}
3162
3163static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3164{
4c476991 3165 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3166 int err;
4c476991 3167 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3168 struct station_parameters params;
3169 u8 *mac_addr = NULL;
3170
3171 memset(&params, 0, sizeof(params));
3172
3173 params.listen_interval = -1;
57cf8043 3174 params.plink_state = -1;
5727ef1b
JB		 3175
3176 if (info->attrs[NL80211_ATTR_STA_AID])
3177 return -EINVAL;
3178
3179 if (!info->attrs[NL80211_ATTR_MAC])
3180 return -EINVAL;
3181
3182 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3183
3184 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3185 params.supported_rates =
3186 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3187 params.supported_rates_len =
3188 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3189 }
3190
ba23d206
JB		 3191 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL] ||
3192 info->attrs[NL80211_ATTR_HT_CAPABILITY])
3193 return -EINVAL;
36aedc90 3194
bdd90d5e
JB		 3195 if (!rdev->ops->change_station)
3196 return -EOPNOTSUPP;
3197
bdd3ae3d 3198 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3199 return -EINVAL;
3200
2ec600d6
LCC		 3201 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3202 params.plink_action =
3203 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3204
9c3990aa
JC		 3205 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3206 params.plink_state =
3207 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3208
a97f4424
JB		 3209 switch (dev->ieee80211_ptr->iftype) {
3210 case NL80211_IFTYPE_AP:
3211 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3212 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3213 /* disallow mesh-specific things */
3214 if (params.plink_action)
bdd90d5e
JB		 3215 return -EINVAL;
3216
3217 /* TDLS can't be set, ... */
3218 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3219 return -EINVAL;
3220 /*
3221 * ... but don't bother the driver with it. This works around
3222 * a hostapd/wpa_supplicant issue -- it always includes the
3223 * TLDS_PEER flag in the mask even for AP mode.
3224 */
3225 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3226
3227 /* accept only the listed bits */
3228 if (params.sta_flags_mask &
3229 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
d582cffb
JB		 3230 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3231 BIT(NL80211_STA_FLAG_ASSOCIATED) |
bdd90d5e
JB		 3232 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3233 BIT(NL80211_STA_FLAG_WME) |
3234 BIT(NL80211_STA_FLAG_MFP)))
3235 return -EINVAL;
3236
d582cffb
JB		 3237 /* but authenticated/associated only if driver handles it */
3238 if (!(rdev->wiphy.features &
3239 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3240 params.sta_flags_mask &
3241 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3242 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3243 return -EINVAL;
3244
ba23d206
JB		 3245 /* reject other things that can't change */
3246 if (params.supported_rates)
3247 return -EINVAL;
3248
bdd90d5e
JB		 3249 /* must be last in here for error handling */
3250 params.vlan = get_vlan(info, rdev);
3251 if (IS_ERR(params.vlan))
3252 return PTR_ERR(params.vlan);
a97f4424 3253 break;
074ac8df 3254 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3255 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3256 /*
3257 * Don't allow userspace to change the TDLS_PEER flag,
3258 * but silently ignore attempts to change it since we
3259 * don't have state here to verify that it doesn't try
3260 * to change the flag.
3261 */
3262 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 3263 /* fall through */
3264 case NL80211_IFTYPE_ADHOC:
3265 /* disallow things sta doesn't support */
3266 if (params.plink_action)
3267 return -EINVAL;
bdd90d5e
JB		 3268 /* reject any changes other than AUTHORIZED */
3269 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3270 return -EINVAL;
a97f4424
JB		 3271 break;
3272 case NL80211_IFTYPE_MESH_POINT:
3273 /* disallow things mesh doesn't support */
3274 if (params.vlan)
bdd90d5e 3275 return -EINVAL;
ba23d206 3276 if (params.supported_rates)
bdd90d5e
JB		 3277 return -EINVAL;
3278 /*
3279 * No special handling for TDLS here -- the userspace
3280 * mesh code doesn't have this bug.
3281 */
b39c48fa
JC		 3282 if (params.sta_flags_mask &
3283 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3284 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3285 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3286 return -EINVAL;
a97f4424
JB		 3287 break;
3288 default:
bdd90d5e 3289 return -EOPNOTSUPP;
034d655e
JB		 3290 }
3291
bdd90d5e 3292 /* be aware of params.vlan when changing code here */
5727ef1b 3293
e35e4d28 3294 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3295
5727ef1b
JB		 3296 if (params.vlan)
3297 dev_put(params.vlan);
3b85875a 3298
5727ef1b
JB		 3299 return err;
3300}
3301
c75786c9
EP		 3302static struct nla_policy
3303nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3304 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3305 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3306};
3307
5727ef1b
JB		 3308static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3309{
4c476991 3310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3311 int err;
4c476991 3312 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3313 struct station_parameters params;
3314 u8 *mac_addr = NULL;
3315
3316 memset(&params, 0, sizeof(params));
3317
3318 if (!info->attrs[NL80211_ATTR_MAC])
3319 return -EINVAL;
3320
5727ef1b
JB		 3321 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3322 return -EINVAL;
3323
3324 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3325 return -EINVAL;
3326
0e956c13
TLSC		 3327 if (!info->attrs[NL80211_ATTR_STA_AID])
3328 return -EINVAL;
3329
5727ef1b
JB		 3330 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3331 params.supported_rates =
3332 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3333 params.supported_rates_len =
3334 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3335 params.listen_interval =
3336 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3337
0e956c13
TLSC		 3338 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3339 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3340 return -EINVAL;
51b50fbe 3341
36aedc90
JM		 3342 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3343 params.ht_capa =
3344 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3345
f461be3e
MP		 3346 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3347 params.vht_capa =
3348 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3349
96b78dff
JC		 3350 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3351 params.plink_action =
3352 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3353
bdd90d5e
JB		 3354 if (!rdev->ops->add_station)
3355 return -EOPNOTSUPP;
3356
bdd3ae3d 3357 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3358 return -EINVAL;
3359
bdd90d5e
JB		 3360 switch (dev->ieee80211_ptr->iftype) {
3361 case NL80211_IFTYPE_AP:
3362 case NL80211_IFTYPE_AP_VLAN:
3363 case NL80211_IFTYPE_P2P_GO:
3364 /* parse WME attributes if sta is WME capable */
3365 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3366 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3367 info->attrs[NL80211_ATTR_STA_WME]) {
3368 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3369 struct nlattr *nla;
3370
3371 nla = info->attrs[NL80211_ATTR_STA_WME];
3372 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3373 nl80211_sta_wme_policy);
3374 if (err)
3375 return err;
3376
3377 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3378 params.uapsd_queues =
3379 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3380 if (params.uapsd_queues &
3381 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3382 return -EINVAL;
c75786c9 3383
bdd90d5e
JB		 3384 if (tb[NL80211_STA_WME_MAX_SP])
3385 params.max_sp =
3386 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3387
bdd90d5e
JB		 3388 if (params.max_sp &
3389 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3390 return -EINVAL;
4319e193 3391
bdd90d5e
JB		 3392 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3393 }
3394 /* TDLS peers cannot be added */
3395 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3396 return -EINVAL;
bdd90d5e
JB		 3397 /* but don't bother the driver with it */
3398 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3399
d582cffb
JB		 3400 /* allow authenticated/associated only if driver handles it */
3401 if (!(rdev->wiphy.features &
3402 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3403 params.sta_flags_mask &
3404 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3405 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3406 return -EINVAL;
3407
bdd90d5e
JB		 3408 /* must be last in here for error handling */
3409 params.vlan = get_vlan(info, rdev);
3410 if (IS_ERR(params.vlan))
3411 return PTR_ERR(params.vlan);
3412 break;
3413 case NL80211_IFTYPE_MESH_POINT:
d582cffb
JB		 3414 /* associated is disallowed */
3415 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3416 return -EINVAL;
bdd90d5e
JB		 3417 /* TDLS peers cannot be added */
3418 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3419 return -EINVAL;
3420 break;
3421 case NL80211_IFTYPE_STATION:
d582cffb
JB		 3422 /* associated is disallowed */
3423 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3424 return -EINVAL;
bdd90d5e
JB		 3425 /* Only TDLS peers can be added */
3426 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3427 return -EINVAL;
3428 /* Can only add if TDLS ... */
3429 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3430 return -EOPNOTSUPP;
3431 /* ... with external setup is supported */
3432 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3433 return -EOPNOTSUPP;
3434 break;
3435 default:
3436 return -EOPNOTSUPP;
c75786c9
EP		 3437 }
3438
bdd90d5e 3439 /* be aware of params.vlan when changing code here */
5727ef1b 3440
e35e4d28 3441 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 3442
5727ef1b
JB		 3443 if (params.vlan)
3444 dev_put(params.vlan);
5727ef1b
JB		 3445 return err;
3446}
3447
3448static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3449{
4c476991
JB		 3450 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3451 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3452 u8 *mac_addr = NULL;
3453
3454 if (info->attrs[NL80211_ATTR_MAC])
3455 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3456
e80cf853 3457 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3458 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3459 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3460 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3461 return -EINVAL;
5727ef1b 3462
4c476991
JB		 3463 if (!rdev->ops->del_station)
3464 return -EOPNOTSUPP;
3b85875a 3465
e35e4d28 3466 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 3467}
3468
15e47304 3469static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3470 int flags, struct net_device *dev,
3471 u8 *dst, u8 *next_hop,
3472 struct mpath_info *pinfo)
3473{
3474 void *hdr;
3475 struct nlattr *pinfoattr;
3476
15e47304 3477 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3478 if (!hdr)
3479 return -1;
3480
9360ffd1
DM		 3481 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3482 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3483 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3484 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3485 goto nla_put_failure;
f5ea9120 3486
2ec600d6
LCC		 3487 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3488 if (!pinfoattr)
3489 goto nla_put_failure;
9360ffd1
DM		 3490 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3491 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3492 pinfo->frame_qlen))
3493 goto nla_put_failure;
3494 if (((pinfo->filled & MPATH_INFO_SN) &&
3495 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3496 ((pinfo->filled & MPATH_INFO_METRIC) &&
3497 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3498 pinfo->metric)) ||
3499 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3500 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3501 pinfo->exptime)) ||
3502 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3503 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3504 pinfo->flags)) ||
3505 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3506 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3507 pinfo->discovery_timeout)) ||
3508 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3509 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3510 pinfo->discovery_retries)))
3511 goto nla_put_failure;
2ec600d6
LCC		 3512
3513 nla_nest_end(msg, pinfoattr);
3514
3515 return genlmsg_end(msg, hdr);
3516
3517 nla_put_failure:
bc3ed28c
TG		 3518 genlmsg_cancel(msg, hdr);
3519 return -EMSGSIZE;
2ec600d6
LCC		 3520}
3521
3522static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3523 struct netlink_callback *cb)
2ec600d6 3524{
2ec600d6
LCC		 3525 struct mpath_info pinfo;
3526 struct cfg80211_registered_device *dev;
bba95fef 3527 struct net_device *netdev;
2ec600d6
LCC		 3528 u8 dst[ETH_ALEN];
3529 u8 next_hop[ETH_ALEN];
bba95fef 3530 int path_idx = cb->args[1];
2ec600d6 3531 int err;
2ec600d6 3532
67748893
JB		 3533 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3534 if (err)
3535 return err;
bba95fef
JB		 3536
3537 if (!dev->ops->dump_mpath) {
eec60b03 3538 err = -EOPNOTSUPP;
bba95fef
JB		 3539 goto out_err;
3540 }
3541
eec60b03
JM		 3542 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3543 err = -EOPNOTSUPP;
0448b5fc 3544 goto out_err;
eec60b03
JM		 3545 }
3546
bba95fef 3547 while (1) {
e35e4d28
HG		 3548 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3549 &pinfo);
bba95fef 3550 if (err == -ENOENT)
2ec600d6 3551 break;
bba95fef 3552 if (err)
3b85875a 3553 goto out_err;
2ec600d6 3554
15e47304 3555 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3556 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3557 netdev, dst, next_hop,
3558 &pinfo) < 0)
3559 goto out;
2ec600d6 3560
bba95fef 3561 path_idx++;
2ec600d6 3562 }
2ec600d6 3563
2ec600d6 3564
bba95fef
JB		 3565 out:
3566 cb->args[1] = path_idx;
3567 err = skb->len;
bba95fef 3568 out_err:
67748893 3569 nl80211_finish_netdev_dump(dev);
bba95fef 3570 return err;
2ec600d6
LCC		 3571}
3572
3573static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3574{
4c476991 3575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3576 int err;
4c476991 3577 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3578 struct mpath_info pinfo;
3579 struct sk_buff *msg;
3580 u8 *dst = NULL;
3581 u8 next_hop[ETH_ALEN];
3582
3583 memset(&pinfo, 0, sizeof(pinfo));
3584
3585 if (!info->attrs[NL80211_ATTR_MAC])
3586 return -EINVAL;
3587
3588 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3589
4c476991
JB		 3590 if (!rdev->ops->get_mpath)
3591 return -EOPNOTSUPP;
2ec600d6 3592
4c476991
JB		 3593 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3594 return -EOPNOTSUPP;
eec60b03 3595
e35e4d28 3596 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 3597 if (err)
4c476991 3598 return err;
2ec600d6 3599
fd2120ca 3600 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3601 if (!msg)
4c476991 3602 return -ENOMEM;
2ec600d6 3603
15e47304 3604 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3605 dev, dst, next_hop, &pinfo) < 0) {
3606 nlmsg_free(msg);
3607 return -ENOBUFS;
3608 }
3b85875a 3609
4c476991 3610 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3611}
3612
3613static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3614{
4c476991
JB		 3615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3616 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3617 u8 *dst = NULL;
3618 u8 *next_hop = NULL;
3619
3620 if (!info->attrs[NL80211_ATTR_MAC])
3621 return -EINVAL;
3622
3623 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3624 return -EINVAL;
3625
3626 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3627 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3628
4c476991
JB		 3629 if (!rdev->ops->change_mpath)
3630 return -EOPNOTSUPP;
35a8efe1 3631
4c476991
JB		 3632 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3633 return -EOPNOTSUPP;
2ec600d6 3634
e35e4d28 3635 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 3636}
4c476991 3637
2ec600d6
LCC		 3638static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3639{
4c476991
JB		 3640 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3641 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3642 u8 *dst = NULL;
3643 u8 *next_hop = NULL;
3644
3645 if (!info->attrs[NL80211_ATTR_MAC])
3646 return -EINVAL;
3647
3648 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3649 return -EINVAL;
3650
3651 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3652 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3653
4c476991
JB		 3654 if (!rdev->ops->add_mpath)
3655 return -EOPNOTSUPP;
35a8efe1 3656
4c476991
JB		 3657 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3658 return -EOPNOTSUPP;
2ec600d6 3659
e35e4d28 3660 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 3661}
3662
3663static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3664{
4c476991
JB		 3665 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3666 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3667 u8 *dst = NULL;
3668
3669 if (info->attrs[NL80211_ATTR_MAC])
3670 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3671
4c476991
JB		 3672 if (!rdev->ops->del_mpath)
3673 return -EOPNOTSUPP;
3b85875a 3674
e35e4d28 3675 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 3676}
3677
9f1ba906
JM		 3678static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3679{
4c476991
JB		 3680 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3681 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3682 struct bss_parameters params;
3683
3684 memset(&params, 0, sizeof(params));
3685 /* default to not changing parameters */
3686 params.use_cts_prot = -1;
3687 params.use_short_preamble = -1;
3688 params.use_short_slot_time = -1;
fd8aaaf3 3689 params.ap_isolate = -1;
50b12f59 3690 params.ht_opmode = -1;
53cabad7
JB		 3691 params.p2p_ctwindow = -1;
3692 params.p2p_opp_ps = -1;
9f1ba906
JM		 3693
3694 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3695 params.use_cts_prot =
3696 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3697 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3698 params.use_short_preamble =
3699 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3700 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3701 params.use_short_slot_time =
3702 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3703 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3704 params.basic_rates =
3705 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3706 params.basic_rates_len =
3707 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3708 }
fd8aaaf3
FF		 3709 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3710 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3711 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3712 params.ht_opmode =
3713 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3714
53cabad7
JB		 3715 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3716 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3717 return -EINVAL;
3718 params.p2p_ctwindow =
3719 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3720 if (params.p2p_ctwindow < 0)
3721 return -EINVAL;
3722 if (params.p2p_ctwindow != 0 &&
3723 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3724 return -EINVAL;
3725 }
3726
3727 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3728 u8 tmp;
3729
3730 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3731 return -EINVAL;
3732 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3733 if (tmp > 1)
3734 return -EINVAL;
3735 params.p2p_opp_ps = tmp;
3736 if (params.p2p_opp_ps &&
3737 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3738 return -EINVAL;
3739 }
3740
4c476991
JB		 3741 if (!rdev->ops->change_bss)
3742 return -EOPNOTSUPP;
9f1ba906 3743
074ac8df 3744 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3745 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3746 return -EOPNOTSUPP;
3b85875a 3747
e35e4d28 3748 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 3749}
3750
b54452b0 3751static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3752 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3753 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3754 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3755 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3756 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3757 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3758};
3759
3760static int parse_reg_rule(struct nlattr *tb[],
3761 struct ieee80211_reg_rule *reg_rule)
3762{
3763 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3764 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3765
3766 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3767 return -EINVAL;
3768 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3769 return -EINVAL;
3770 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3771 return -EINVAL;
3772 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3773 return -EINVAL;
3774 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3775 return -EINVAL;
3776
3777 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3778
3779 freq_range->start_freq_khz =
3780 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3781 freq_range->end_freq_khz =
3782 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3783 freq_range->max_bandwidth_khz =
3784 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3785
3786 power_rule->max_eirp =
3787 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3788
3789 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3790 power_rule->max_antenna_gain =
3791 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3792
3793 return 0;
3794}
3795
3796static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3797{
3798 int r;
3799 char *data = NULL;
57b5ce07 3800 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 3801
80778f18
LR		 3802 /*
3803 * You should only get this when cfg80211 hasn't yet initialized
3804 * completely when built-in to the kernel right between the time
3805 * window between nl80211_init() and regulatory_init(), if that is
3806 * even possible.
3807 */
458f4f9e 3808 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 3809 return -EINPROGRESS;
80778f18 3810
fe33eb39
LR		 3811 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3812 return -EINVAL;
b2e1b302
LR		 3813
3814 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3815
57b5ce07
LR		 3816 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3817 user_reg_hint_type =
3818 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3819 else
3820 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3821
3822 switch (user_reg_hint_type) {
3823 case NL80211_USER_REG_HINT_USER:
3824 case NL80211_USER_REG_HINT_CELL_BASE:
3825 break;
3826 default:
3827 return -EINVAL;
3828 }
3829
3830 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 3831
b2e1b302
LR		 3832 return r;
3833}
3834
24bdd9f4 3835static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3836 struct genl_info *info)
93da9cc1 3837{
4c476991 3838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3839 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3840 struct wireless_dev *wdev = dev->ieee80211_ptr;
3841 struct mesh_config cur_params;
3842 int err = 0;
93da9cc1 3843 void *hdr;
3844 struct nlattr *pinfoattr;
3845 struct sk_buff *msg;
3846
29cbe68c
JB		 3847 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3848 return -EOPNOTSUPP;
3849
24bdd9f4 3850 if (!rdev->ops->get_mesh_config)
4c476991 3851 return -EOPNOTSUPP;
f3f92586 3852
29cbe68c
JB		 3853 wdev_lock(wdev);
3854 /* If not connected, get default parameters */
3855 if (!wdev->mesh_id_len)
3856 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3857 else
e35e4d28 3858 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 3859 wdev_unlock(wdev);
3860
93da9cc1 3861 if (err)
4c476991 3862 return err;
93da9cc1 3863
3864 /* Draw up a netlink message to send back */
fd2120ca 3865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3866 if (!msg)
3867 return -ENOMEM;
15e47304 3868 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 3869 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3870 if (!hdr)
efe1cf0c 3871 goto out;
24bdd9f4 3872 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3873 if (!pinfoattr)
3874 goto nla_put_failure;
9360ffd1
DM		 3875 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3876 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3877 cur_params.dot11MeshRetryTimeout) ||
3878 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3879 cur_params.dot11MeshConfirmTimeout) ||
3880 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3881 cur_params.dot11MeshHoldingTimeout) ||
3882 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3883 cur_params.dot11MeshMaxPeerLinks) ||
3884 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3885 cur_params.dot11MeshMaxRetries) ||
3886 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3887 cur_params.dot11MeshTTL) ||
3888 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3889 cur_params.element_ttl) ||
3890 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3891 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3892 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3893 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3894 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3895 cur_params.dot11MeshHWMPmaxPREQretries) ||
3896 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3897 cur_params.path_refresh_time) ||
3898 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3899 cur_params.min_discovery_timeout) ||
3900 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3901 cur_params.dot11MeshHWMPactivePathTimeout) ||
3902 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3903 cur_params.dot11MeshHWMPpreqMinInterval) ||
3904 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3905 cur_params.dot11MeshHWMPperrMinInterval) ||
3906 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3907 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3908 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3909 cur_params.dot11MeshHWMPRootMode) ||
3910 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3911 cur_params.dot11MeshHWMPRannInterval) ||
3912 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3913 cur_params.dot11MeshGateAnnouncementProtocol) ||
3914 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3915 cur_params.dot11MeshForwarding) ||
3916 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3917 cur_params.rssi_threshold) ||
3918 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3919 cur_params.ht_opmode) ||
3920 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3921 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3922 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3923 cur_params.dot11MeshHWMProotInterval) ||
3924 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3925 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3926 goto nla_put_failure;
93da9cc1 3927 nla_nest_end(msg, pinfoattr);
3928 genlmsg_end(msg, hdr);
4c476991 3929 return genlmsg_reply(msg, info);
93da9cc1 3930
3b85875a 3931 nla_put_failure:
93da9cc1 3932 genlmsg_cancel(msg, hdr);
efe1cf0c 3933 out:
d080e275 3934 nlmsg_free(msg);
4c476991 3935 return -ENOBUFS;
93da9cc1 3936}
3937
b54452b0 3938static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3939 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3940 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3941 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3942 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3943 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3944 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3945 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3946 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3947 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3948 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3949 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3950 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3951 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3952 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3953 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3954 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3955 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3956 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3957 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3958 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3959 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3960 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3961 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3962 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3963 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3964};
3965
c80d545d
JC		 3966static const struct nla_policy
3967 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3968 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3969 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3970 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3971 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3972 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3973 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3974 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3975};
3976
24bdd9f4 3977static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3978 struct mesh_config *cfg,
3979 u32 *mask_out)
93da9cc1 3980{
93da9cc1 3981 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3982 u32 mask = 0;
93da9cc1 3983
ea54fba2
MP		 3984#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
3985do { \
3986 if (tb[attr]) { \
3987 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
3988 return -EINVAL; \
3989 cfg->param = fn(tb[attr]); \
3990 mask |= (1 << (attr - 1)); \
3991 } \
3992} while (0)
bd90fdcc
JB		 3993
3994
24bdd9f4 3995 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3996 return -EINVAL;
3997 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3998 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3999 nl80211_meshconf_params_policy))
93da9cc1 4000 return -EINVAL;
4001
93da9cc1 4002 /* This makes sure that there aren't more than 32 mesh config
4003 * parameters (otherwise our bitfield scheme would not work.) */
4004 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4005
4006 /* Fill in the params struct */
ea54fba2 4007 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4008 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4009 nla_get_u16);
ea54fba2 4010 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4011 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4012 nla_get_u16);
ea54fba2 4013 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4014 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4015 nla_get_u16);
ea54fba2 4016 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4017 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4018 nla_get_u16);
ea54fba2 4019 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4020 mask, NL80211_MESHCONF_MAX_RETRIES,
4021 nla_get_u8);
ea54fba2 4022 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4023 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4024 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4025 mask, NL80211_MESHCONF_ELEMENT_TTL,
4026 nla_get_u8);
ea54fba2 4027 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4028 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4029 nla_get_u8);
ea54fba2
MP		 4030 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4031 1, 255, mask,
a4f606ea
CYY		 4032 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4033 nla_get_u32);
ea54fba2 4034 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4035 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4036 nla_get_u8);
ea54fba2 4037 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4038 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4039 nla_get_u32);
ea54fba2 4040 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4041 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4042 nla_get_u16);
ea54fba2
MP		 4043 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4044 1, 65535, mask,
a4f606ea
CYY		 4045 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4046 nla_get_u32);
93da9cc1 4047 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4048 1, 65535, mask,
4049 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4050 nla_get_u16);
dca7e943 4051 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4052 1, 65535, mask,
4053 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4054 nla_get_u16);
93da9cc1 4055 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4056 dot11MeshHWMPnetDiameterTraversalTime,
4057 1, 65535, mask,
a4f606ea
CYY		 4058 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4059 nla_get_u16);
ea54fba2
MP		 4060 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4061 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4062 nla_get_u8);
4063 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4064 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4065 nla_get_u16);
63c5723b 4066 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4067 dot11MeshGateAnnouncementProtocol, 0, 1,
4068 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4069 nla_get_u8);
ea54fba2 4070 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4071 mask, NL80211_MESHCONF_FORWARDING,
4072 nla_get_u8);
ea54fba2 4073 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4074 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4075 nla_get_u32);
ea54fba2 4076 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4077 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4078 nla_get_u16);
4079 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4080 1, 65535, mask,
ac1073a6
CYY		 4081 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4082 nla_get_u32);
ea54fba2 4083 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4084 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4085 nla_get_u16);
4086 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4087 dot11MeshHWMPconfirmationInterval,
4088 1, 65535, mask,
728b19e5 4089 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4090 nla_get_u16);
bd90fdcc
JB		 4091 if (mask_out)
4092 *mask_out = mask;
c80d545d 4093
bd90fdcc
JB		 4094 return 0;
4095
4096#undef FILL_IN_MESH_PARAM_IF_SET
4097}
4098
c80d545d
JC		 4099static int nl80211_parse_mesh_setup(struct genl_info *info,
4100 struct mesh_setup *setup)
4101{
4102 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4103
4104 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4105 return -EINVAL;
4106 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4107 info->attrs[NL80211_ATTR_MESH_SETUP],
4108 nl80211_mesh_setup_params_policy))
4109 return -EINVAL;
4110
d299a1f2
JC		 4111 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4112 setup->sync_method =
4113 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4114 IEEE80211_SYNC_METHOD_VENDOR :
4115 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4116
c80d545d
JC		 4117 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4118 setup->path_sel_proto =
4119 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4120 IEEE80211_PATH_PROTOCOL_VENDOR :
4121 IEEE80211_PATH_PROTOCOL_HWMP;
4122
4123 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4124 setup->path_metric =
4125 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4126 IEEE80211_PATH_METRIC_VENDOR :
4127 IEEE80211_PATH_METRIC_AIRTIME;
4128
581a8b0f
JC		 4129
4130 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4131 struct nlattr *ieattr =
581a8b0f 4132 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4133 if (!is_valid_ie_attr(ieattr))
4134 return -EINVAL;
581a8b0f
JC		 4135 setup->ie = nla_data(ieattr);
4136 setup->ie_len = nla_len(ieattr);
c80d545d 4137 }
b130e5ce
JC		 4138 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4139 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4140
4141 return 0;
4142}
4143
24bdd9f4 4144static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4145 struct genl_info *info)
bd90fdcc
JB		 4146{
4147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4148 struct net_device *dev = info->user_ptr[1];
29cbe68c 4149 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4150 struct mesh_config cfg;
4151 u32 mask;
4152 int err;
4153
29cbe68c
JB		 4154 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4155 return -EOPNOTSUPP;
4156
24bdd9f4 4157 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4158 return -EOPNOTSUPP;
4159
24bdd9f4 4160 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4161 if (err)
4162 return err;
4163
29cbe68c
JB		 4164 wdev_lock(wdev);
4165 if (!wdev->mesh_id_len)
4166 err = -ENOLINK;
4167
4168 if (!err)
e35e4d28 4169 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4170
4171 wdev_unlock(wdev);
4172
4173 return err;
93da9cc1 4174}
4175
f130347c
LR		 4176static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4177{
458f4f9e 4178 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4179 struct sk_buff *msg;
4180 void *hdr = NULL;
4181 struct nlattr *nl_reg_rules;
4182 unsigned int i;
4183 int err = -EINVAL;
4184
a1794390 4185 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4186
4187 if (!cfg80211_regdomain)
4188 goto out;
4189
fd2120ca 4190 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4191 if (!msg) {
4192 err = -ENOBUFS;
4193 goto out;
4194 }
4195
15e47304 4196 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4197 NL80211_CMD_GET_REG);
4198 if (!hdr)
efe1cf0c 4199 goto put_failure;
f130347c 4200
57b5ce07
LR		 4201 if (reg_last_request_cell_base() &&
4202 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4203 NL80211_USER_REG_HINT_CELL_BASE))
4204 goto nla_put_failure;
4205
458f4f9e
JB		 4206 rcu_read_lock();
4207 regdom = rcu_dereference(cfg80211_regdomain);
4208
4209 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4210 (regdom->dfs_region &&
4211 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4212 goto nla_put_failure_rcu;
4213
f130347c
LR		 4214 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4215 if (!nl_reg_rules)
458f4f9e 4216 goto nla_put_failure_rcu;
f130347c 4217
458f4f9e 4218 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4219 struct nlattr *nl_reg_rule;
4220 const struct ieee80211_reg_rule *reg_rule;
4221 const struct ieee80211_freq_range *freq_range;
4222 const struct ieee80211_power_rule *power_rule;
4223
458f4f9e 4224 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4225 freq_range = &reg_rule->freq_range;
4226 power_rule = &reg_rule->power_rule;
4227
4228 nl_reg_rule = nla_nest_start(msg, i);
4229 if (!nl_reg_rule)
458f4f9e 4230 goto nla_put_failure_rcu;
f130347c 4231
9360ffd1
DM		 4232 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4233 reg_rule->flags) ||
4234 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4235 freq_range->start_freq_khz) ||
4236 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4237 freq_range->end_freq_khz) ||
4238 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4239 freq_range->max_bandwidth_khz) ||
4240 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4241 power_rule->max_antenna_gain) ||
4242 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4243 power_rule->max_eirp))
458f4f9e 4244 goto nla_put_failure_rcu;
f130347c
LR		 4245
4246 nla_nest_end(msg, nl_reg_rule);
4247 }
458f4f9e 4248 rcu_read_unlock();
f130347c
LR		 4249
4250 nla_nest_end(msg, nl_reg_rules);
4251
4252 genlmsg_end(msg, hdr);
134e6375 4253 err = genlmsg_reply(msg, info);
f130347c
LR		 4254 goto out;
4255
458f4f9e
JB		 4256nla_put_failure_rcu:
4257 rcu_read_unlock();
f130347c
LR		 4258nla_put_failure:
4259 genlmsg_cancel(msg, hdr);
efe1cf0c 4260put_failure:
d080e275 4261 nlmsg_free(msg);
f130347c
LR		 4262 err = -EMSGSIZE;
4263out:
a1794390 4264 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4265 return err;
4266}
4267
b2e1b302
LR		 4268static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4269{
4270 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4271 struct nlattr *nl_reg_rule;
4272 char *alpha2 = NULL;
4273 int rem_reg_rules = 0, r = 0;
4274 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4275 u8 dfs_region = 0;
b2e1b302
LR		 4276 struct ieee80211_regdomain *rd = NULL;
4277
4278 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4279 return -EINVAL;
4280
4281 if (!info->attrs[NL80211_ATTR_REG_RULES])
4282 return -EINVAL;
4283
4284 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4285
8b60b078
LR		 4286 if (info->attrs[NL80211_ATTR_DFS_REGION])
4287 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4288
b2e1b302 4289 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4290 rem_reg_rules) {
b2e1b302
LR		 4291 num_rules++;
4292 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4293 return -EINVAL;
b2e1b302
LR		 4294 }
4295
b2e1b302 4296 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4297 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4298
4299 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4300 if (!rd)
4301 return -ENOMEM;
b2e1b302
LR		 4302
4303 rd->n_reg_rules = num_rules;
4304 rd->alpha2[0] = alpha2[0];
4305 rd->alpha2[1] = alpha2[1];
4306
8b60b078
LR		 4307 /*
4308 * Disable DFS master mode if the DFS region was
4309 * not supported or known on this kernel.
4310 */
4311 if (reg_supported_dfs_region(dfs_region))
4312 rd->dfs_region = dfs_region;
4313
b2e1b302 4314 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4315 rem_reg_rules) {
b2e1b302 4316 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4317 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4318 reg_rule_policy);
b2e1b302
LR		 4319 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4320 if (r)
4321 goto bad_reg;
4322
4323 rule_idx++;
4324
d0e18f83
LR		 4325 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4326 r = -EINVAL;
b2e1b302 4327 goto bad_reg;
d0e18f83 4328 }
b2e1b302
LR		 4329 }
4330
6913b49a
JB		 4331 mutex_lock(&cfg80211_mutex);
4332
b2e1b302 4333 r = set_regdom(rd);
6913b49a 4334 /* set_regdom took ownership */
1a919318 4335 rd = NULL;
6913b49a 4336 mutex_unlock(&cfg80211_mutex);
b2e1b302 4337
d2372b31 4338 bad_reg:
b2e1b302 4339 kfree(rd);
d0e18f83 4340 return r;
b2e1b302
LR		 4341}
4342
83f5e2cf
JB		 4343static int validate_scan_freqs(struct nlattr *freqs)
4344{
4345 struct nlattr *attr1, *attr2;
4346 int n_channels = 0, tmp1, tmp2;
4347
4348 nla_for_each_nested(attr1, freqs, tmp1) {
4349 n_channels++;
4350 /*
4351 * Some hardware has a limited channel list for
4352 * scanning, and it is pretty much nonsensical
4353 * to scan for a channel twice, so disallow that
4354 * and don't require drivers to check that the
4355 * channel list they get isn't longer than what
4356 * they can scan, as long as they can scan all
4357 * the channels they registered at once.
4358 */
4359 nla_for_each_nested(attr2, freqs, tmp2)
4360 if (attr1 != attr2 &&
4361 nla_get_u32(attr1) == nla_get_u32(attr2))
4362 return 0;
4363 }
4364
4365 return n_channels;
4366}
4367
2a519311
JB		 4368static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4369{
4c476991 4370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4371 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4372 struct cfg80211_scan_request *request;
2a519311
JB		 4373 struct nlattr *attr;
4374 struct wiphy *wiphy;
83f5e2cf 4375 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4376 size_t ie_len;
2a519311 4377
f4a11bb0
JB		 4378 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4379 return -EINVAL;
4380
79c97e97 4381 wiphy = &rdev->wiphy;
2a519311 4382
4c476991
JB		 4383 if (!rdev->ops->scan)
4384 return -EOPNOTSUPP;
2a519311 4385
4c476991
JB		 4386 if (rdev->scan_req)
4387 return -EBUSY;
2a519311
JB		 4388
4389 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4390 n_channels = validate_scan_freqs(
4391 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4392 if (!n_channels)
4393 return -EINVAL;
2a519311 4394 } else {
34850ab2 4395 enum ieee80211_band band;
83f5e2cf
JB		 4396 n_channels = 0;
4397
2a519311
JB		 4398 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4399 if (wiphy->bands[band])
4400 n_channels += wiphy->bands[band]->n_channels;
4401 }
4402
4403 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4404 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4405 n_ssids++;
4406
4c476991
JB		 4407 if (n_ssids > wiphy->max_scan_ssids)
4408 return -EINVAL;
2a519311 4409
70692ad2
JM		 4410 if (info->attrs[NL80211_ATTR_IE])
4411 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4412 else
4413 ie_len = 0;
4414
4c476991
JB		 4415 if (ie_len > wiphy->max_scan_ie_len)
4416 return -EINVAL;
18a83659 4417
2a519311 4418 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4419 + sizeof(*request->ssids) * n_ssids
4420 + sizeof(*request->channels) * n_channels
70692ad2 4421 + ie_len, GFP_KERNEL);
4c476991
JB		 4422 if (!request)
4423 return -ENOMEM;
2a519311 4424
2a519311 4425 if (n_ssids)
5ba63533 4426 request->ssids = (void *)&request->channels[n_channels];
2a519311 4427 request->n_ssids = n_ssids;
70692ad2
JM		 4428 if (ie_len) {
4429 if (request->ssids)
4430 request->ie = (void *)(request->ssids + n_ssids);
4431 else
4432 request->ie = (void *)(request->channels + n_channels);
4433 }
2a519311 4434
584991dc 4435 i = 0;
2a519311
JB		 4436 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4437 /* user specified, bail out if channel not found */
2a519311 4438 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4439 struct ieee80211_channel *chan;
4440
4441 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4442
4443 if (!chan) {
2a519311
JB		 4444 err = -EINVAL;
4445 goto out_free;
4446 }
584991dc
JB		 4447
4448 /* ignore disabled channels */
4449 if (chan->flags & IEEE80211_CHAN_DISABLED)
4450 continue;
4451
4452 request->channels[i] = chan;
2a519311
JB		 4453 i++;
4454 }
4455 } else {
34850ab2
JB		 4456 enum ieee80211_band band;
4457
2a519311 4458 /* all channels */
2a519311
JB		 4459 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4460 int j;
4461 if (!wiphy->bands[band])
4462 continue;
4463 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4464 struct ieee80211_channel *chan;
4465
4466 chan = &wiphy->bands[band]->channels[j];
4467
4468 if (chan->flags & IEEE80211_CHAN_DISABLED)
4469 continue;
4470
4471 request->channels[i] = chan;
2a519311
JB		 4472 i++;
4473 }
4474 }
4475 }
4476
584991dc
JB		 4477 if (!i) {
4478 err = -EINVAL;
4479 goto out_free;
4480 }
4481
4482 request->n_channels = i;
4483
2a519311
JB		 4484 i = 0;
4485 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4486 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4487 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4488 err = -EINVAL;
4489 goto out_free;
4490 }
57a27e1d 4491 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4492 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4493 i++;
4494 }
4495 }
4496
70692ad2
JM		 4497 if (info->attrs[NL80211_ATTR_IE]) {
4498 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4499 memcpy((void *)request->ie,
4500 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4501 request->ie_len);
4502 }
4503
34850ab2 4504 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4505 if (wiphy->bands[i])
4506 request->rates[i] =
4507 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4508
4509 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4510 nla_for_each_nested(attr,
4511 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4512 tmp) {
4513 enum ieee80211_band band = nla_type(attr);
4514
84404623 4515 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4516 err = -EINVAL;
4517 goto out_free;
4518 }
4519 err = ieee80211_get_ratemask(wiphy->bands[band],
4520 nla_data(attr),
4521 nla_len(attr),
4522 &request->rates[band]);
4523 if (err)
4524 goto out_free;
4525 }
4526 }
4527
46856bbf 4528 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4529 request->flags = nla_get_u32(
4530 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4531 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4532 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4533 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4534 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4535 err = -EOPNOTSUPP;
4536 goto out_free;
4537 }
4538 }
ed473771 4539
e9f935e3
RM		 4540 request->no_cck =
4541 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4542
fd014284 4543 request->wdev = wdev;
79c97e97 4544 request->wiphy = &rdev->wiphy;
15d6030b 4545 request->scan_start = jiffies;
2a519311 4546
79c97e97 4547 rdev->scan_req = request;
e35e4d28 4548 err = rdev_scan(rdev, request);
2a519311 4549
463d0183 4550 if (!err) {
fd014284
JB		 4551 nl80211_send_scan_start(rdev, wdev);
4552 if (wdev->netdev)
4553 dev_hold(wdev->netdev);
4c476991 4554 } else {
2a519311 4555 out_free:
79c97e97 4556 rdev->scan_req = NULL;
2a519311
JB		 4557 kfree(request);
4558 }
3b85875a 4559
2a519311
JB		 4560 return err;
4561}
4562
807f8a8c
LC		 4563static int nl80211_start_sched_scan(struct sk_buff *skb,
4564 struct genl_info *info)
4565{
4566 struct cfg80211_sched_scan_request *request;
4567 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4568 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4569 struct nlattr *attr;
4570 struct wiphy *wiphy;
a1f1c21c 4571 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4572 u32 interval;
807f8a8c
LC		 4573 enum ieee80211_band band;
4574 size_t ie_len;
a1f1c21c 4575 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4576
4577 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4578 !rdev->ops->sched_scan_start)
4579 return -EOPNOTSUPP;
4580
4581 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4582 return -EINVAL;
4583
bbe6ad6d
LC		 4584 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4585 return -EINVAL;
4586
4587 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4588 if (interval == 0)
4589 return -EINVAL;
4590
807f8a8c
LC		 4591 wiphy = &rdev->wiphy;
4592
4593 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4594 n_channels = validate_scan_freqs(
4595 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4596 if (!n_channels)
4597 return -EINVAL;
4598 } else {
4599 n_channels = 0;
4600
4601 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4602 if (wiphy->bands[band])
4603 n_channels += wiphy->bands[band]->n_channels;
4604 }
4605
4606 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4607 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4608 tmp)
4609 n_ssids++;
4610
93b6aa69 4611 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4612 return -EINVAL;
4613
a1f1c21c
LC		 4614 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4615 nla_for_each_nested(attr,
4616 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4617 tmp)
4618 n_match_sets++;
4619
4620 if (n_match_sets > wiphy->max_match_sets)
4621 return -EINVAL;
4622
807f8a8c
LC		 4623 if (info->attrs[NL80211_ATTR_IE])
4624 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4625 else
4626 ie_len = 0;
4627
5a865bad 4628 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4629 return -EINVAL;
4630
c10841ca
LC		 4631 mutex_lock(&rdev->sched_scan_mtx);
4632
4633 if (rdev->sched_scan_req) {
4634 err = -EINPROGRESS;
4635 goto out;
4636 }
4637
807f8a8c 4638 request = kzalloc(sizeof(*request)
a2cd43c5 4639 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4640 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4641 + sizeof(*request->channels) * n_channels
807f8a8c 4642 + ie_len, GFP_KERNEL);
c10841ca
LC		 4643 if (!request) {
4644 err = -ENOMEM;
4645 goto out;
4646 }
807f8a8c
LC		 4647
4648 if (n_ssids)
4649 request->ssids = (void *)&request->channels[n_channels];
4650 request->n_ssids = n_ssids;
4651 if (ie_len) {
4652 if (request->ssids)
4653 request->ie = (void *)(request->ssids + n_ssids);
4654 else
4655 request->ie = (void *)(request->channels + n_channels);
4656 }
4657
a1f1c21c
LC		 4658 if (n_match_sets) {
4659 if (request->ie)
4660 request->match_sets = (void *)(request->ie + ie_len);
4661 else if (request->ssids)
4662 request->match_sets =
4663 (void *)(request->ssids + n_ssids);
4664 else
4665 request->match_sets =
4666 (void *)(request->channels + n_channels);
4667 }
4668 request->n_match_sets = n_match_sets;
4669
807f8a8c
LC		 4670 i = 0;
4671 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4672 /* user specified, bail out if channel not found */
4673 nla_for_each_nested(attr,
4674 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4675 tmp) {
4676 struct ieee80211_channel *chan;
4677
4678 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4679
4680 if (!chan) {
4681 err = -EINVAL;
4682 goto out_free;
4683 }
4684
4685 /* ignore disabled channels */
4686 if (chan->flags & IEEE80211_CHAN_DISABLED)
4687 continue;
4688
4689 request->channels[i] = chan;
4690 i++;
4691 }
4692 } else {
4693 /* all channels */
4694 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4695 int j;
4696 if (!wiphy->bands[band])
4697 continue;
4698 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4699 struct ieee80211_channel *chan;
4700
4701 chan = &wiphy->bands[band]->channels[j];
4702
4703 if (chan->flags & IEEE80211_CHAN_DISABLED)
4704 continue;
4705
4706 request->channels[i] = chan;
4707 i++;
4708 }
4709 }
4710 }
4711
4712 if (!i) {
4713 err = -EINVAL;
4714 goto out_free;
4715 }
4716
4717 request->n_channels = i;
4718
4719 i = 0;
4720 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4721 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4722 tmp) {
57a27e1d 4723 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4724 err = -EINVAL;
4725 goto out_free;
4726 }
57a27e1d 4727 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4728 memcpy(request->ssids[i].ssid, nla_data(attr),
4729 nla_len(attr));
807f8a8c
LC		 4730 i++;
4731 }
4732 }
4733
a1f1c21c
LC		 4734 i = 0;
4735 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4736 nla_for_each_nested(attr,
4737 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4738 tmp) {
88e920b4 4739 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4740
4741 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4742 nla_data(attr), nla_len(attr),
4743 nl80211_match_policy);
4a4ab0d7 4744 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4745 if (ssid) {
4746 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4747 err = -EINVAL;
4748 goto out_free;
4749 }
4750 memcpy(request->match_sets[i].ssid.ssid,
4751 nla_data(ssid), nla_len(ssid));
4752 request->match_sets[i].ssid.ssid_len =
4753 nla_len(ssid);
4754 }
88e920b4
TP		 4755 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4756 if (rssi)
4757 request->rssi_thold = nla_get_u32(rssi);
4758 else
4759 request->rssi_thold =
4760 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4761 i++;
4762 }
4763 }
4764
807f8a8c
LC		 4765 if (info->attrs[NL80211_ATTR_IE]) {
4766 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4767 memcpy((void *)request->ie,
4768 nla_data(info->attrs[NL80211_ATTR_IE]),
4769 request->ie_len);
4770 }
4771
46856bbf 4772 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4773 request->flags = nla_get_u32(
4774 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4775 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4776 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4777 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4778 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4779 err = -EOPNOTSUPP;
4780 goto out_free;
4781 }
4782 }
ed473771 4783
807f8a8c
LC		 4784 request->dev = dev;
4785 request->wiphy = &rdev->wiphy;
bbe6ad6d 4786 request->interval = interval;
15d6030b 4787 request->scan_start = jiffies;
807f8a8c 4788
e35e4d28 4789 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 4790 if (!err) {
4791 rdev->sched_scan_req = request;
4792 nl80211_send_sched_scan(rdev, dev,
4793 NL80211_CMD_START_SCHED_SCAN);
4794 goto out;
4795 }
4796
4797out_free:
4798 kfree(request);
4799out:
c10841ca 4800 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4801 return err;
4802}
4803
4804static int nl80211_stop_sched_scan(struct sk_buff *skb,
4805 struct genl_info *info)
4806{
4807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4808 int err;
807f8a8c
LC		 4809
4810 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4811 !rdev->ops->sched_scan_stop)
4812 return -EOPNOTSUPP;
4813
c10841ca
LC		 4814 mutex_lock(&rdev->sched_scan_mtx);
4815 err = __cfg80211_stop_sched_scan(rdev, false);
4816 mutex_unlock(&rdev->sched_scan_mtx);
4817
4818 return err;
807f8a8c
LC		 4819}
4820
9720bb3a
JB		 4821static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4822 u32 seq, int flags,
2a519311 4823 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4824 struct wireless_dev *wdev,
4825 struct cfg80211_internal_bss *intbss)
2a519311 4826{
48ab905d 4827 struct cfg80211_bss *res = &intbss->pub;
9caf0364 4828 const struct cfg80211_bss_ies *ies;
2a519311
JB		 4829 void *hdr;
4830 struct nlattr *bss;
48ab905d
JB		 4831
4832 ASSERT_WDEV_LOCK(wdev);
2a519311 4833
15e47304 4834 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 4835 NL80211_CMD_NEW_SCAN_RESULTS);
4836 if (!hdr)
4837 return -1;
4838
9720bb3a
JB		 4839 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4840
9360ffd1
DM		 4841 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4842 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4843 goto nla_put_failure;
2a519311
JB		 4844
4845 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4846 if (!bss)
4847 goto nla_put_failure;
9360ffd1 4848 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 4849 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 4850 goto nla_put_failure;
9caf0364
JB		 4851
4852 rcu_read_lock();
4853 ies = rcu_dereference(res->ies);
4854 if (ies && ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4855 ies->len, ies->data)) {
4856 rcu_read_unlock();
4857 goto nla_put_failure;
4858 }
4859 ies = rcu_dereference(res->beacon_ies);
4860 if (ies && ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
4861 ies->len, ies->data)) {
4862 rcu_read_unlock();
4863 goto nla_put_failure;
4864 }
4865 rcu_read_unlock();
4866
9360ffd1
DM		 4867 if (res->tsf &&
4868 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4869 goto nla_put_failure;
4870 if (res->beacon_interval &&
4871 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4872 goto nla_put_failure;
4873 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4874 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4875 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4876 jiffies_to_msecs(jiffies - intbss->ts)))
4877 goto nla_put_failure;
2a519311 4878
77965c97 4879 switch (rdev->wiphy.signal_type) {
2a519311 4880 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4881 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4882 goto nla_put_failure;
2a519311
JB		 4883 break;
4884 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4885 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4886 goto nla_put_failure;
2a519311
JB		 4887 break;
4888 default:
4889 break;
4890 }
4891
48ab905d 4892 switch (wdev->iftype) {
074ac8df 4893 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4894 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4895 if (intbss == wdev->current_bss &&
4896 nla_put_u32(msg, NL80211_BSS_STATUS,
4897 NL80211_BSS_STATUS_ASSOCIATED))
4898 goto nla_put_failure;
48ab905d
JB		 4899 break;
4900 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4901 if (intbss == wdev->current_bss &&
4902 nla_put_u32(msg, NL80211_BSS_STATUS,
4903 NL80211_BSS_STATUS_IBSS_JOINED))
4904 goto nla_put_failure;
48ab905d
JB		 4905 break;
4906 default:
4907 break;
4908 }
4909
2a519311
JB		 4910 nla_nest_end(msg, bss);
4911
4912 return genlmsg_end(msg, hdr);
4913
4914 nla_put_failure:
4915 genlmsg_cancel(msg, hdr);
4916 return -EMSGSIZE;
4917}
4918
4919static int nl80211_dump_scan(struct sk_buff *skb,
4920 struct netlink_callback *cb)
4921{
48ab905d
JB		 4922 struct cfg80211_registered_device *rdev;
4923 struct net_device *dev;
2a519311 4924 struct cfg80211_internal_bss *scan;
48ab905d 4925 struct wireless_dev *wdev;
2a519311
JB		 4926 int start = cb->args[1], idx = 0;
4927 int err;
4928
67748893
JB		 4929 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4930 if (err)
4931 return err;
2a519311 4932
48ab905d 4933 wdev = dev->ieee80211_ptr;
2a519311 4934
48ab905d
JB		 4935 wdev_lock(wdev);
4936 spin_lock_bh(&rdev->bss_lock);
4937 cfg80211_bss_expire(rdev);
4938
9720bb3a
JB		 4939 cb->seq = rdev->bss_generation;
4940
48ab905d 4941 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4942 if (++idx <= start)
4943 continue;
9720bb3a 4944 if (nl80211_send_bss(skb, cb,
2a519311 4945 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4946 rdev, wdev, scan) < 0) {
2a519311 4947 idx--;
67748893 4948 break;
2a519311
JB		 4949 }
4950 }
4951
48ab905d
JB		 4952 spin_unlock_bh(&rdev->bss_lock);
4953 wdev_unlock(wdev);
2a519311
JB		 4954
4955 cb->args[1] = idx;
67748893 4956 nl80211_finish_netdev_dump(rdev);
2a519311 4957
67748893 4958 return skb->len;
2a519311
JB		 4959}
4960
15e47304 4961static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 4962 int flags, struct net_device *dev,
4963 struct survey_info *survey)
4964{
4965 void *hdr;
4966 struct nlattr *infoattr;
4967
15e47304 4968 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 4969 NL80211_CMD_NEW_SURVEY_RESULTS);
4970 if (!hdr)
4971 return -ENOMEM;
4972
9360ffd1
DM		 4973 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4974 goto nla_put_failure;
61fa713c
HS		 4975
4976 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4977 if (!infoattr)
4978 goto nla_put_failure;
4979
9360ffd1
DM		 4980 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4981 survey->channel->center_freq))
4982 goto nla_put_failure;
4983
4984 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4985 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4986 goto nla_put_failure;
4987 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4988 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4989 goto nla_put_failure;
4990 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4991 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4992 survey->channel_time))
4993 goto nla_put_failure;
4994 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4995 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4996 survey->channel_time_busy))
4997 goto nla_put_failure;
4998 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4999 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5000 survey->channel_time_ext_busy))
5001 goto nla_put_failure;
5002 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5003 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5004 survey->channel_time_rx))
5005 goto nla_put_failure;
5006 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5007 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5008 survey->channel_time_tx))
5009 goto nla_put_failure;
61fa713c
HS		 5010
5011 nla_nest_end(msg, infoattr);
5012
5013 return genlmsg_end(msg, hdr);
5014
5015 nla_put_failure:
5016 genlmsg_cancel(msg, hdr);
5017 return -EMSGSIZE;
5018}
5019
5020static int nl80211_dump_survey(struct sk_buff *skb,
5021 struct netlink_callback *cb)
5022{
5023 struct survey_info survey;
5024 struct cfg80211_registered_device *dev;
5025 struct net_device *netdev;
61fa713c
HS		 5026 int survey_idx = cb->args[1];
5027 int res;
5028
67748893
JB		 5029 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5030 if (res)
5031 return res;
61fa713c
HS		 5032
5033 if (!dev->ops->dump_survey) {
5034 res = -EOPNOTSUPP;
5035 goto out_err;
5036 }
5037
5038 while (1) {
180cdc79
LR		 5039 struct ieee80211_channel *chan;
5040
e35e4d28 5041 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5042 if (res == -ENOENT)
5043 break;
5044 if (res)
5045 goto out_err;
5046
180cdc79
LR		 5047 /* Survey without a channel doesn't make sense */
5048 if (!survey.channel) {
5049 res = -EINVAL;
5050 goto out;
5051 }
5052
5053 chan = ieee80211_get_channel(&dev->wiphy,
5054 survey.channel->center_freq);
5055 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5056 survey_idx++;
5057 continue;
5058 }
5059
61fa713c 5060 if (nl80211_send_survey(skb,
15e47304 5061 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5062 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5063 netdev,
5064 &survey) < 0)
5065 goto out;
5066 survey_idx++;
5067 }
5068
5069 out:
5070 cb->args[1] = survey_idx;
5071 res = skb->len;
5072 out_err:
67748893 5073 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5074 return res;
5075}
5076
b23aa676
SO		 5077static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5078{
5079 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5080 NL80211_WPA_VERSION_2));
5081}
5082
636a5d36
JM		 5083static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5084{
4c476991
JB		 5085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5086 struct net_device *dev = info->user_ptr[1];
19957bb3 5087 struct ieee80211_channel *chan;
e39e5b5e
JM		 5088 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5089 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5090 enum nl80211_auth_type auth_type;
fffd0934 5091 struct key_parse key;
d5cdfacb 5092 bool local_state_change;
636a5d36 5093
f4a11bb0
JB		 5094 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5095 return -EINVAL;
5096
5097 if (!info->attrs[NL80211_ATTR_MAC])
5098 return -EINVAL;
5099
1778092e
JM		 5100 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5101 return -EINVAL;
5102
19957bb3
JB		 5103 if (!info->attrs[NL80211_ATTR_SSID])
5104 return -EINVAL;
5105
5106 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5107 return -EINVAL;
5108
fffd0934
JB		 5109 err = nl80211_parse_key(info, &key);
5110 if (err)
5111 return err;
5112
5113 if (key.idx >= 0) {
e31b8213
JB		 5114 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5115 return -EINVAL;
fffd0934
JB		 5116 if (!key.p.key || !key.p.key_len)
5117 return -EINVAL;
5118 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5119 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5120 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5121 key.p.key_len != WLAN_KEY_LEN_WEP104))
5122 return -EINVAL;
5123 if (key.idx > 4)
5124 return -EINVAL;
5125 } else {
5126 key.p.key_len = 0;
5127 key.p.key = NULL;
5128 }
5129
afea0b7a
JB		 5130 if (key.idx >= 0) {
5131 int i;
5132 bool ok = false;
5133 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5134 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5135 ok = true;
5136 break;
5137 }
5138 }
4c476991
JB		 5139 if (!ok)
5140 return -EINVAL;
afea0b7a
JB		 5141 }
5142
4c476991
JB		 5143 if (!rdev->ops->auth)
5144 return -EOPNOTSUPP;
636a5d36 5145
074ac8df 5146 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5147 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5148 return -EOPNOTSUPP;
eec60b03 5149
19957bb3 5150 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5151 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5152 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5153 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5154 return -EINVAL;
636a5d36 5155
19957bb3
JB		 5156 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5157 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5158
5159 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5160 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5161 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5162 }
5163
19957bb3 5164 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5165 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5166 return -EINVAL;
636a5d36 5167
e39e5b5e
JM		 5168 if (auth_type == NL80211_AUTHTYPE_SAE &&
5169 !info->attrs[NL80211_ATTR_SAE_DATA])
5170 return -EINVAL;
5171
5172 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5173 if (auth_type != NL80211_AUTHTYPE_SAE)
5174 return -EINVAL;
5175 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5176 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5177 /* need to include at least Auth Transaction and Status Code */
5178 if (sae_data_len < 4)
5179 return -EINVAL;
5180 }
5181
d5cdfacb
JM		 5182 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5183
95de817b
JB		 5184 /*
5185 * Since we no longer track auth state, ignore
5186 * requests to only change local state.
5187 */
5188 if (local_state_change)
5189 return 0;
5190
4c476991
JB		 5191 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5192 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5193 key.p.key, key.p.key_len, key.idx,
5194 sae_data, sae_data_len);
636a5d36
JM		 5195}
5196
c0692b8f
JB		 5197static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5198 struct genl_info *info,
3dc27d25
JB		 5199 struct cfg80211_crypto_settings *settings,
5200 int cipher_limit)
b23aa676 5201{
c0b2bbd8
JB		 5202 memset(settings, 0, sizeof(*settings));
5203
b23aa676
SO		 5204 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5205
c0692b8f
JB		 5206 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5207 u16 proto;
5208 proto = nla_get_u16(
5209 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5210 settings->control_port_ethertype = cpu_to_be16(proto);
5211 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5212 proto != ETH_P_PAE)
5213 return -EINVAL;
5214 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5215 settings->control_port_no_encrypt = true;
5216 } else
5217 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5218
b23aa676
SO		 5219 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5220 void *data;
5221 int len, i;
5222
5223 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5224 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5225 settings->n_ciphers_pairwise = len / sizeof(u32);
5226
5227 if (len % sizeof(u32))
5228 return -EINVAL;
5229
3dc27d25 5230 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5231 return -EINVAL;
5232
5233 memcpy(settings->ciphers_pairwise, data, len);
5234
5235 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5236 if (!cfg80211_supported_cipher_suite(
5237 &rdev->wiphy,
b23aa676
SO		 5238 settings->ciphers_pairwise[i]))
5239 return -EINVAL;
5240 }
5241
5242 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5243 settings->cipher_group =
5244 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5245 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5246 settings->cipher_group))
b23aa676
SO		 5247 return -EINVAL;
5248 }
5249
5250 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5251 settings->wpa_versions =
5252 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5253 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5254 return -EINVAL;
5255 }
5256
5257 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5258 void *data;
6d30240e 5259 int len;
b23aa676
SO		 5260
5261 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5262 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5263 settings->n_akm_suites = len / sizeof(u32);
5264
5265 if (len % sizeof(u32))
5266 return -EINVAL;
5267
1b9ca027
JM		 5268 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5269 return -EINVAL;
5270
b23aa676 5271 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5272 }
5273
5274 return 0;
5275}
5276
636a5d36
JM		 5277static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5278{
4c476991
JB		 5279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5280 struct net_device *dev = info->user_ptr[1];
19957bb3 5281 struct cfg80211_crypto_settings crypto;
f444de05 5282 struct ieee80211_channel *chan;
3e5d7649 5283 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5284 int err, ssid_len, ie_len = 0;
5285 bool use_mfp = false;
7e7c8926
BG		 5286 u32 flags = 0;
5287 struct ieee80211_ht_cap *ht_capa = NULL;
5288 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5289
f4a11bb0
JB		 5290 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5291 return -EINVAL;
5292
5293 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5294 !info->attrs[NL80211_ATTR_SSID] ||
5295 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5296 return -EINVAL;
5297
4c476991
JB		 5298 if (!rdev->ops->assoc)
5299 return -EOPNOTSUPP;
636a5d36 5300
074ac8df 5301 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5302 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5303 return -EOPNOTSUPP;
eec60b03 5304
19957bb3 5305 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5306
19957bb3
JB		 5307 chan = ieee80211_get_channel(&rdev->wiphy,
5308 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5309 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5310 return -EINVAL;
636a5d36 5311
19957bb3
JB		 5312 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5313 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5314
5315 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5316 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5317 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5318 }
5319
dc6382ce 5320 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5321 enum nl80211_mfp mfp =
dc6382ce 5322 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5323 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5324 use_mfp = true;
4c476991
JB		 5325 else if (mfp != NL80211_MFP_NO)
5326 return -EINVAL;
dc6382ce
JM		 5327 }
5328
3e5d7649
JB		 5329 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5330 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5331
7e7c8926
BG		 5332 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5333 flags |= ASSOC_REQ_DISABLE_HT;
5334
5335 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5336 ht_capa_mask =
5337 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5338
5339 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5340 if (!ht_capa_mask)
5341 return -EINVAL;
5342 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5343 }
5344
c0692b8f 5345 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5346 if (!err)
3e5d7649
JB		 5347 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5348 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5349 &crypto, flags, ht_capa,
5350 ht_capa_mask);
636a5d36 5351
636a5d36
JM		 5352 return err;
5353}
5354
5355static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5356{
4c476991
JB		 5357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5358 struct net_device *dev = info->user_ptr[1];
19957bb3 5359 const u8 *ie = NULL, *bssid;
4c476991 5360 int ie_len = 0;
19957bb3 5361 u16 reason_code;
d5cdfacb 5362 bool local_state_change;
636a5d36 5363
f4a11bb0
JB		 5364 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5365 return -EINVAL;
5366
5367 if (!info->attrs[NL80211_ATTR_MAC])
5368 return -EINVAL;
5369
5370 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5371 return -EINVAL;
5372
4c476991
JB		 5373 if (!rdev->ops->deauth)
5374 return -EOPNOTSUPP;
636a5d36 5375
074ac8df 5376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5377 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5378 return -EOPNOTSUPP;
eec60b03 5379
19957bb3 5380 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5381
19957bb3
JB		 5382 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5383 if (reason_code == 0) {
f4a11bb0 5384 /* Reason Code 0 is reserved */
4c476991 5385 return -EINVAL;
255e737e 5386 }
636a5d36
JM		 5387
5388 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5389 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5390 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5391 }
5392
d5cdfacb
JM		 5393 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5394
4c476991
JB		 5395 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5396 local_state_change);
636a5d36
JM		 5397}
5398
5399static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5400{
4c476991
JB		 5401 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5402 struct net_device *dev = info->user_ptr[1];
19957bb3 5403 const u8 *ie = NULL, *bssid;
4c476991 5404 int ie_len = 0;
19957bb3 5405 u16 reason_code;
d5cdfacb 5406 bool local_state_change;
636a5d36 5407
f4a11bb0
JB		 5408 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5409 return -EINVAL;
5410
5411 if (!info->attrs[NL80211_ATTR_MAC])
5412 return -EINVAL;
5413
5414 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5415 return -EINVAL;
5416
4c476991
JB		 5417 if (!rdev->ops->disassoc)
5418 return -EOPNOTSUPP;
636a5d36 5419
074ac8df 5420 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5421 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5422 return -EOPNOTSUPP;
eec60b03 5423
19957bb3 5424 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5425
19957bb3
JB		 5426 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5427 if (reason_code == 0) {
f4a11bb0 5428 /* Reason Code 0 is reserved */
4c476991 5429 return -EINVAL;
255e737e 5430 }
636a5d36
JM		 5431
5432 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5433 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5434 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5435 }
5436
d5cdfacb
JM		 5437 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5438
4c476991
JB		 5439 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5440 local_state_change);
636a5d36
JM		 5441}
5442
dd5b4cc7
FF		 5443static bool
5444nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5445 int mcast_rate[IEEE80211_NUM_BANDS],
5446 int rateval)
5447{
5448 struct wiphy *wiphy = &rdev->wiphy;
5449 bool found = false;
5450 int band, i;
5451
5452 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5453 struct ieee80211_supported_band *sband;
5454
5455 sband = wiphy->bands[band];
5456 if (!sband)
5457 continue;
5458
5459 for (i = 0; i < sband->n_bitrates; i++) {
5460 if (sband->bitrates[i].bitrate == rateval) {
5461 mcast_rate[band] = i + 1;
5462 found = true;
5463 break;
5464 }
5465 }
5466 }
5467
5468 return found;
5469}
5470
04a773ad
JB		 5471static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5472{
4c476991
JB		 5473 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5474 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5475 struct cfg80211_ibss_params ibss;
5476 struct wiphy *wiphy;
fffd0934 5477 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5478 int err;
5479
8e30bc55
JB		 5480 memset(&ibss, 0, sizeof(ibss));
5481
04a773ad
JB		 5482 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5483 return -EINVAL;
5484
683b6d3b 5485 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 5486 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5487 return -EINVAL;
5488
8e30bc55
JB		 5489 ibss.beacon_interval = 100;
5490
5491 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5492 ibss.beacon_interval =
5493 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5494 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5495 return -EINVAL;
5496 }
5497
4c476991
JB		 5498 if (!rdev->ops->join_ibss)
5499 return -EOPNOTSUPP;
04a773ad 5500
4c476991
JB		 5501 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5502 return -EOPNOTSUPP;
04a773ad 5503
79c97e97 5504 wiphy = &rdev->wiphy;
04a773ad 5505
39193498 5506 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5507 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5508
5509 if (!is_valid_ether_addr(ibss.bssid))
5510 return -EINVAL;
5511 }
04a773ad
JB		 5512 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5513 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5514
5515 if (info->attrs[NL80211_ATTR_IE]) {
5516 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5517 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5518 }
5519
683b6d3b
JB		 5520 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5521 if (err)
5522 return err;
04a773ad 5523
683b6d3b 5524 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 5525 return -EINVAL;
5526
db9c64cf
JB		 5527 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5528 return -EINVAL;
5529 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5530 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 5531 return -EINVAL;
db9c64cf 5532
04a773ad 5533 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5534 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5535
fbd2c8dc
TP		 5536 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5537 u8 *rates =
5538 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5539 int n_rates =
5540 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5541 struct ieee80211_supported_band *sband =
683b6d3b 5542 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 5543
34850ab2
JB		 5544 err = ieee80211_get_ratemask(sband, rates, n_rates,
5545 &ibss.basic_rates);
5546 if (err)
5547 return err;
fbd2c8dc 5548 }
dd5b4cc7
FF		 5549
5550 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5551 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5552 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5553 return -EINVAL;
fbd2c8dc 5554
4c476991 5555 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 5556 bool no_ht = false;
5557
4c476991 5558 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 5559 info->attrs[NL80211_ATTR_KEYS],
5560 &no_ht);
4c476991
JB		 5561 if (IS_ERR(connkeys))
5562 return PTR_ERR(connkeys);
de7044ee 5563
3d9d1d66
JB		 5564 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5565 no_ht) {
de7044ee
SM		 5566 kfree(connkeys);
5567 return -EINVAL;
5568 }
4c476991 5569 }
04a773ad 5570
267335d6
AQ		 5571 ibss.control_port =
5572 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5573
4c476991 5574 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5575 if (err)
5576 kfree(connkeys);
04a773ad
JB		 5577 return err;
5578}
5579
5580static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5581{
4c476991
JB		 5582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5583 struct net_device *dev = info->user_ptr[1];
04a773ad 5584
4c476991
JB		 5585 if (!rdev->ops->leave_ibss)
5586 return -EOPNOTSUPP;
04a773ad 5587
4c476991
JB		 5588 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5589 return -EOPNOTSUPP;
04a773ad 5590
4c476991 5591 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5592}
5593
f4e583c8
AQ		 5594static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5595{
5596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5597 struct net_device *dev = info->user_ptr[1];
5598 int mcast_rate[IEEE80211_NUM_BANDS];
5599 u32 nla_rate;
5600 int err;
5601
5602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5603 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5604 return -EOPNOTSUPP;
5605
5606 if (!rdev->ops->set_mcast_rate)
5607 return -EOPNOTSUPP;
5608
5609 memset(mcast_rate, 0, sizeof(mcast_rate));
5610
5611 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5612 return -EINVAL;
5613
5614 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5615 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5616 return -EINVAL;
5617
5618 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5619
5620 return err;
5621}
5622
5623
aff89a9b
JB		 5624#ifdef CONFIG_NL80211_TESTMODE
5625static struct genl_multicast_group nl80211_testmode_mcgrp = {
5626 .name = "testmode",
5627};
5628
5629static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5630{
4c476991 5631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5632 int err;
5633
5634 if (!info->attrs[NL80211_ATTR_TESTDATA])
5635 return -EINVAL;
5636
aff89a9b
JB		 5637 err = -EOPNOTSUPP;
5638 if (rdev->ops->testmode_cmd) {
5639 rdev->testmode_info = info;
e35e4d28 5640 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 5641 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5642 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5643 rdev->testmode_info = NULL;
5644 }
5645
aff89a9b
JB		 5646 return err;
5647}
5648
71063f0e
WYG		 5649static int nl80211_testmode_dump(struct sk_buff *skb,
5650 struct netlink_callback *cb)
5651{
00918d33 5652 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5653 int err;
5654 long phy_idx;
5655 void *data = NULL;
5656 int data_len = 0;
5657
5658 if (cb->args[0]) {
5659 /*
5660 * 0 is a valid index, but not valid for args[0],
5661 * so we need to offset by 1.
5662 */
5663 phy_idx = cb->args[0] - 1;
5664 } else {
5665 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5666 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5667 nl80211_policy);
5668 if (err)
5669 return err;
00918d33 5670
2bd7e35d
JB		 5671 mutex_lock(&cfg80211_mutex);
5672 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5673 nl80211_fam.attrbuf);
5674 if (IS_ERR(rdev)) {
5675 mutex_unlock(&cfg80211_mutex);
5676 return PTR_ERR(rdev);
00918d33 5677 }
2bd7e35d
JB		 5678 phy_idx = rdev->wiphy_idx;
5679 rdev = NULL;
5680 mutex_unlock(&cfg80211_mutex);
5681
71063f0e
WYG		 5682 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5683 cb->args[1] =
5684 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5685 }
5686
5687 if (cb->args[1]) {
5688 data = nla_data((void *)cb->args[1]);
5689 data_len = nla_len((void *)cb->args[1]);
5690 }
5691
5692 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5693 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5694 if (!rdev) {
71063f0e
WYG		 5695 mutex_unlock(&cfg80211_mutex);
5696 return -ENOENT;
5697 }
00918d33 5698 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5699 mutex_unlock(&cfg80211_mutex);
5700
00918d33 5701 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5702 err = -EOPNOTSUPP;
5703 goto out_err;
5704 }
5705
5706 while (1) {
15e47304 5707 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 5708 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5709 NL80211_CMD_TESTMODE);
5710 struct nlattr *tmdata;
5711
9360ffd1 5712 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5713 genlmsg_cancel(skb, hdr);
5714 break;
5715 }
5716
5717 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5718 if (!tmdata) {
5719 genlmsg_cancel(skb, hdr);
5720 break;
5721 }
e35e4d28 5722 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 5723 nla_nest_end(skb, tmdata);
5724
5725 if (err == -ENOBUFS || err == -ENOENT) {
5726 genlmsg_cancel(skb, hdr);
5727 break;
5728 } else if (err) {
5729 genlmsg_cancel(skb, hdr);
5730 goto out_err;
5731 }
5732
5733 genlmsg_end(skb, hdr);
5734 }
5735
5736 err = skb->len;
5737 /* see above */
5738 cb->args[0] = phy_idx + 1;
5739 out_err:
00918d33 5740 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5741 return err;
5742}
5743
aff89a9b
JB		 5744static struct sk_buff *
5745__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 5746 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 5747{
5748 struct sk_buff *skb;
5749 void *hdr;
5750 struct nlattr *data;
5751
5752 skb = nlmsg_new(approxlen + 100, gfp);
5753 if (!skb)
5754 return NULL;
5755
15e47304 5756 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 5757 if (!hdr) {
5758 kfree_skb(skb);
5759 return NULL;
5760 }
5761
9360ffd1
DM		 5762 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5763 goto nla_put_failure;
aff89a9b
JB		 5764 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5765
5766 ((void **)skb->cb)[0] = rdev;
5767 ((void **)skb->cb)[1] = hdr;
5768 ((void **)skb->cb)[2] = data;
5769
5770 return skb;
5771
5772 nla_put_failure:
5773 kfree_skb(skb);
5774 return NULL;
5775}
5776
5777struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5778 int approxlen)
5779{
5780 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5781
5782 if (WARN_ON(!rdev->testmode_info))
5783 return NULL;
5784
5785 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 5786 rdev->testmode_info->snd_portid,
aff89a9b
JB		 5787 rdev->testmode_info->snd_seq,
5788 GFP_KERNEL);
5789}
5790EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5791
5792int cfg80211_testmode_reply(struct sk_buff *skb)
5793{
5794 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5795 void *hdr = ((void **)skb->cb)[1];
5796 struct nlattr *data = ((void **)skb->cb)[2];
5797
5798 if (WARN_ON(!rdev->testmode_info)) {
5799 kfree_skb(skb);
5800 return -EINVAL;
5801 }
5802
5803 nla_nest_end(skb, data);
5804 genlmsg_end(skb, hdr);
5805 return genlmsg_reply(skb, rdev->testmode_info);
5806}
5807EXPORT_SYMBOL(cfg80211_testmode_reply);
5808
5809struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5810 int approxlen, gfp_t gfp)
5811{
5812 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5813
5814 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5815}
5816EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5817
5818void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5819{
5820 void *hdr = ((void **)skb->cb)[1];
5821 struct nlattr *data = ((void **)skb->cb)[2];
5822
5823 nla_nest_end(skb, data);
5824 genlmsg_end(skb, hdr);
5825 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5826}
5827EXPORT_SYMBOL(cfg80211_testmode_event);
5828#endif
5829
b23aa676
SO		 5830static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5831{
4c476991
JB		 5832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5833 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5834 struct cfg80211_connect_params connect;
5835 struct wiphy *wiphy;
fffd0934 5836 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5837 int err;
5838
5839 memset(&connect, 0, sizeof(connect));
5840
5841 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5842 return -EINVAL;
5843
5844 if (!info->attrs[NL80211_ATTR_SSID] ||
5845 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5846 return -EINVAL;
5847
5848 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5849 connect.auth_type =
5850 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 5851 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5852 NL80211_CMD_CONNECT))
b23aa676
SO		 5853 return -EINVAL;
5854 } else
5855 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5856
5857 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5858
c0692b8f 5859 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5860 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5861 if (err)
5862 return err;
b23aa676 5863
074ac8df 5864 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5865 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5866 return -EOPNOTSUPP;
b23aa676 5867
79c97e97 5868 wiphy = &rdev->wiphy;
b23aa676 5869
4486ea98
BS		 5870 connect.bg_scan_period = -1;
5871 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5872 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5873 connect.bg_scan_period =
5874 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5875 }
5876
b23aa676
SO		 5877 if (info->attrs[NL80211_ATTR_MAC])
5878 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5879 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5880 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5881
5882 if (info->attrs[NL80211_ATTR_IE]) {
5883 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5884 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5885 }
5886
5887 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5888 connect.channel =
5889 ieee80211_get_channel(wiphy,
5890 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5891 if (!connect.channel ||
4c476991
JB		 5892 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5893 return -EINVAL;
b23aa676
SO		 5894 }
5895
fffd0934
JB		 5896 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5897 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 5898 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 5899 if (IS_ERR(connkeys))
5900 return PTR_ERR(connkeys);
fffd0934
JB		 5901 }
5902
7e7c8926
BG		 5903 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5904 connect.flags |= ASSOC_REQ_DISABLE_HT;
5905
5906 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5907 memcpy(&connect.ht_capa_mask,
5908 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5909 sizeof(connect.ht_capa_mask));
5910
5911 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 5912 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5913 kfree(connkeys);
7e7c8926 5914 return -EINVAL;
b4e4f47e 5915 }
7e7c8926
BG		 5916 memcpy(&connect.ht_capa,
5917 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5918 sizeof(connect.ht_capa));
5919 }
5920
fffd0934 5921 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5922 if (err)
5923 kfree(connkeys);
b23aa676
SO		 5924 return err;
5925}
5926
5927static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5928{
4c476991
JB		 5929 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5930 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5931 u16 reason;
5932
5933 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5934 reason = WLAN_REASON_DEAUTH_LEAVING;
5935 else
5936 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5937
5938 if (reason == 0)
5939 return -EINVAL;
5940
074ac8df 5941 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5942 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5943 return -EOPNOTSUPP;
b23aa676 5944
4c476991 5945 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5946}
5947
463d0183
JB		 5948static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5949{
4c476991 5950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5951 struct net *net;
5952 int err;
5953 u32 pid;
5954
5955 if (!info->attrs[NL80211_ATTR_PID])
5956 return -EINVAL;
5957
5958 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5959
463d0183 5960 net = get_net_ns_by_pid(pid);
4c476991
JB		 5961 if (IS_ERR(net))
5962 return PTR_ERR(net);
463d0183
JB		 5963
5964 err = 0;
5965
5966 /* check if anything to do */
4c476991
JB		 5967 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5968 err = cfg80211_switch_netns(rdev, net);
463d0183 5969
463d0183 5970 put_net(net);
463d0183
JB		 5971 return err;
5972}
5973
67fbb16b
SO		 5974static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5975{
4c476991 5976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5977 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5978 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5979 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5980 struct cfg80211_pmksa pmksa;
5981
5982 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5983
5984 if (!info->attrs[NL80211_ATTR_MAC])
5985 return -EINVAL;
5986
5987 if (!info->attrs[NL80211_ATTR_PMKID])
5988 return -EINVAL;
5989
67fbb16b
SO		 5990 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5991 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5992
074ac8df 5993 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5994 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5995 return -EOPNOTSUPP;
67fbb16b
SO		 5996
5997 switch (info->genlhdr->cmd) {
5998 case NL80211_CMD_SET_PMKSA:
5999 rdev_ops = rdev->ops->set_pmksa;
6000 break;
6001 case NL80211_CMD_DEL_PMKSA:
6002 rdev_ops = rdev->ops->del_pmksa;
6003 break;
6004 default:
6005 WARN_ON(1);
6006 break;
6007 }
6008
4c476991
JB		 6009 if (!rdev_ops)
6010 return -EOPNOTSUPP;
67fbb16b 6011
4c476991 6012 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6013}
6014
6015static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6016{
4c476991
JB		 6017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6018 struct net_device *dev = info->user_ptr[1];
67fbb16b 6019
074ac8df 6020 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6021 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6022 return -EOPNOTSUPP;
67fbb16b 6023
4c476991
JB		 6024 if (!rdev->ops->flush_pmksa)
6025 return -EOPNOTSUPP;
67fbb16b 6026
e35e4d28 6027 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6028}
6029
109086ce
AN		 6030static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6031{
6032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6033 struct net_device *dev = info->user_ptr[1];
6034 u8 action_code, dialog_token;
6035 u16 status_code;
6036 u8 *peer;
6037
6038 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6039 !rdev->ops->tdls_mgmt)
6040 return -EOPNOTSUPP;
6041
6042 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6043 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6044 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6045 !info->attrs[NL80211_ATTR_IE] ||
6046 !info->attrs[NL80211_ATTR_MAC])
6047 return -EINVAL;
6048
6049 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6050 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6051 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6052 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6053
e35e4d28
HG		 6054 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6055 dialog_token, status_code,
6056 nla_data(info->attrs[NL80211_ATTR_IE]),
6057 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6058}
6059
6060static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6061{
6062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6063 struct net_device *dev = info->user_ptr[1];
6064 enum nl80211_tdls_operation operation;
6065 u8 *peer;
6066
6067 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6068 !rdev->ops->tdls_oper)
6069 return -EOPNOTSUPP;
6070
6071 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6072 !info->attrs[NL80211_ATTR_MAC])
6073 return -EINVAL;
6074
6075 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6076 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6077
e35e4d28 6078 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6079}
6080
9588bbd5
JM		 6081static int nl80211_remain_on_channel(struct sk_buff *skb,
6082 struct genl_info *info)
6083{
4c476991 6084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6085 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6086 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6087 struct sk_buff *msg;
6088 void *hdr;
6089 u64 cookie;
683b6d3b 6090 u32 duration;
9588bbd5
JM		 6091 int err;
6092
6093 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6094 !info->attrs[NL80211_ATTR_DURATION])
6095 return -EINVAL;
6096
6097 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6098
ebf348fc
JB		 6099 if (!rdev->ops->remain_on_channel ||
6100 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6101 return -EOPNOTSUPP;
6102
9588bbd5 6103 /*
ebf348fc
JB		 6104 * We should be on that channel for at least a minimum amount of
6105 * time (10ms) but no longer than the driver supports.
9588bbd5 6106 */
ebf348fc 6107 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6108 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6109 return -EINVAL;
6110
683b6d3b
JB		 6111 err = nl80211_parse_chandef(rdev, info, &chandef);
6112 if (err)
6113 return err;
9588bbd5
JM		 6114
6115 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6116 if (!msg)
6117 return -ENOMEM;
9588bbd5 6118
15e47304 6119 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6120 NL80211_CMD_REMAIN_ON_CHANNEL);
6121
6122 if (IS_ERR(hdr)) {
6123 err = PTR_ERR(hdr);
6124 goto free_msg;
6125 }
6126
683b6d3b
JB		 6127 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6128 duration, &cookie);
9588bbd5
JM		 6129
6130 if (err)
6131 goto free_msg;
6132
9360ffd1
DM		 6133 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6134 goto nla_put_failure;
9588bbd5
JM		 6135
6136 genlmsg_end(msg, hdr);
4c476991
JB		 6137
6138 return genlmsg_reply(msg, info);
9588bbd5
JM		 6139
6140 nla_put_failure:
6141 err = -ENOBUFS;
6142 free_msg:
6143 nlmsg_free(msg);
9588bbd5
JM		 6144 return err;
6145}
6146
6147static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6148 struct genl_info *info)
6149{
4c476991 6150 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6151 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6152 u64 cookie;
9588bbd5
JM		 6153
6154 if (!info->attrs[NL80211_ATTR_COOKIE])
6155 return -EINVAL;
6156
4c476991
JB		 6157 if (!rdev->ops->cancel_remain_on_channel)
6158 return -EOPNOTSUPP;
9588bbd5 6159
9588bbd5
JM		 6160 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6161
e35e4d28 6162 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6163}
6164
13ae75b1
JM		 6165static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6166 u8 *rates, u8 rates_len)
6167{
6168 u8 i;
6169 u32 mask = 0;
6170
6171 for (i = 0; i < rates_len; i++) {
6172 int rate = (rates[i] & 0x7f) * 5;
6173 int ridx;
6174 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6175 struct ieee80211_rate *srate =
6176 &sband->bitrates[ridx];
6177 if (rate == srate->bitrate) {
6178 mask |= 1 << ridx;
6179 break;
6180 }
6181 }
6182 if (ridx == sband->n_bitrates)
6183 return 0; /* rate not found */
6184 }
6185
6186 return mask;
6187}
6188
24db78c0
SW		 6189static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6190 u8 *rates, u8 rates_len,
6191 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6192{
6193 u8 i;
6194
6195 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6196
6197 for (i = 0; i < rates_len; i++) {
6198 int ridx, rbit;
6199
6200 ridx = rates[i] / 8;
6201 rbit = BIT(rates[i] % 8);
6202
6203 /* check validity */
910570b5 6204 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6205 return false;
6206
6207 /* check availability */
6208 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6209 mcs[ridx] |= rbit;
6210 else
6211 return false;
6212 }
6213
6214 return true;
6215}
6216
b54452b0 6217static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6218 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6219 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6220 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6221 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6222};
6223
6224static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6225 struct genl_info *info)
6226{
6227 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6229 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6230 int rem, i;
6231 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6232 struct nlattr *tx_rates;
6233 struct ieee80211_supported_band *sband;
6234
6235 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6236 return -EINVAL;
6237
4c476991
JB		 6238 if (!rdev->ops->set_bitrate_mask)
6239 return -EOPNOTSUPP;
13ae75b1
JM		 6240
6241 memset(&mask, 0, sizeof(mask));
6242 /* Default to all rates enabled */
6243 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6244 sband = rdev->wiphy.bands[i];
6245 mask.control[i].legacy =
6246 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6247 if (sband)
6248 memcpy(mask.control[i].mcs,
6249 sband->ht_cap.mcs.rx_mask,
6250 sizeof(mask.control[i].mcs));
6251 else
6252 memset(mask.control[i].mcs, 0,
6253 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6254 }
6255
6256 /*
6257 * The nested attribute uses enum nl80211_band as the index. This maps
6258 * directly to the enum ieee80211_band values used in cfg80211.
6259 */
24db78c0 6260 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6261 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6262 {
6263 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6264 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6265 return -EINVAL;
13ae75b1 6266 sband = rdev->wiphy.bands[band];
4c476991
JB		 6267 if (sband == NULL)
6268 return -EINVAL;
13ae75b1
JM		 6269 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6270 nla_len(tx_rates), nl80211_txattr_policy);
6271 if (tb[NL80211_TXRATE_LEGACY]) {
6272 mask.control[band].legacy = rateset_to_mask(
6273 sband,
6274 nla_data(tb[NL80211_TXRATE_LEGACY]),
6275 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6276 if ((mask.control[band].legacy == 0) &&
6277 nla_len(tb[NL80211_TXRATE_LEGACY]))
6278 return -EINVAL;
24db78c0
SW		 6279 }
6280 if (tb[NL80211_TXRATE_MCS]) {
6281 if (!ht_rateset_to_mask(
6282 sband,
6283 nla_data(tb[NL80211_TXRATE_MCS]),
6284 nla_len(tb[NL80211_TXRATE_MCS]),
6285 mask.control[band].mcs))
6286 return -EINVAL;
6287 }
6288
6289 if (mask.control[band].legacy == 0) {
6290 /* don't allow empty legacy rates if HT
6291 * is not even supported. */
6292 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6293 return -EINVAL;
6294
6295 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6296 if (mask.control[band].mcs[i])
6297 break;
6298
6299 /* legacy and mcs rates may not be both empty */
6300 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6301 return -EINVAL;
13ae75b1
JM		 6302 }
6303 }
6304
e35e4d28 6305 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 6306}
6307
2e161f78 6308static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6309{
4c476991 6310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6311 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6312 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6313
6314 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6315 return -EINVAL;
6316
2e161f78
JB		 6317 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6318 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6319
71bbc994
JB		 6320 switch (wdev->iftype) {
6321 case NL80211_IFTYPE_STATION:
6322 case NL80211_IFTYPE_ADHOC:
6323 case NL80211_IFTYPE_P2P_CLIENT:
6324 case NL80211_IFTYPE_AP:
6325 case NL80211_IFTYPE_AP_VLAN:
6326 case NL80211_IFTYPE_MESH_POINT:
6327 case NL80211_IFTYPE_P2P_GO:
98104fde 6328 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6329 break;
6330 default:
4c476991 6331 return -EOPNOTSUPP;
71bbc994 6332 }
026331c4
JM		 6333
6334 /* not much point in registering if we can't reply */
4c476991
JB		 6335 if (!rdev->ops->mgmt_tx)
6336 return -EOPNOTSUPP;
026331c4 6337
15e47304 6338 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6339 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6340 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6341}
6342
2e161f78 6343static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6344{
4c476991 6345 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6346 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6347 struct cfg80211_chan_def chandef;
026331c4 6348 int err;
d64d373f 6349 void *hdr = NULL;
026331c4 6350 u64 cookie;
e247bd90 6351 struct sk_buff *msg = NULL;
f7ca38df 6352 unsigned int wait = 0;
e247bd90
JB		 6353 bool offchan, no_cck, dont_wait_for_ack;
6354
6355 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 6356
683b6d3b 6357 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 6358 return -EINVAL;
6359
4c476991
JB		 6360 if (!rdev->ops->mgmt_tx)
6361 return -EOPNOTSUPP;
026331c4 6362
71bbc994
JB		 6363 switch (wdev->iftype) {
6364 case NL80211_IFTYPE_STATION:
6365 case NL80211_IFTYPE_ADHOC:
6366 case NL80211_IFTYPE_P2P_CLIENT:
6367 case NL80211_IFTYPE_AP:
6368 case NL80211_IFTYPE_AP_VLAN:
6369 case NL80211_IFTYPE_MESH_POINT:
6370 case NL80211_IFTYPE_P2P_GO:
98104fde 6371 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6372 break;
6373 default:
4c476991 6374 return -EOPNOTSUPP;
71bbc994 6375 }
026331c4 6376
f7ca38df 6377 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6378 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6379 return -EINVAL;
6380 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6381
6382 /*
6383 * We should wait on the channel for at least a minimum amount
6384 * of time (10ms) but no longer than the driver supports.
6385 */
6386 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6387 wait > rdev->wiphy.max_remain_on_channel_duration)
6388 return -EINVAL;
6389
f7ca38df
JB		 6390 }
6391
f7ca38df
JB		 6392 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6393
7c4ef712
JB		 6394 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6395 return -EINVAL;
6396
e9f935e3
RM		 6397 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6398
683b6d3b
JB		 6399 err = nl80211_parse_chandef(rdev, info, &chandef);
6400 if (err)
6401 return err;
026331c4 6402
e247bd90
JB		 6403 if (!dont_wait_for_ack) {
6404 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6405 if (!msg)
6406 return -ENOMEM;
026331c4 6407
15e47304 6408 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6409 NL80211_CMD_FRAME);
026331c4 6410
e247bd90
JB		 6411 if (IS_ERR(hdr)) {
6412 err = PTR_ERR(hdr);
6413 goto free_msg;
6414 }
026331c4 6415 }
e247bd90 6416
683b6d3b 6417 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 6418 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6419 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6420 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6421 if (err)
6422 goto free_msg;
6423
e247bd90 6424 if (msg) {
9360ffd1
DM		 6425 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6426 goto nla_put_failure;
026331c4 6427
e247bd90
JB		 6428 genlmsg_end(msg, hdr);
6429 return genlmsg_reply(msg, info);
6430 }
6431
6432 return 0;
026331c4
JM		 6433
6434 nla_put_failure:
6435 err = -ENOBUFS;
6436 free_msg:
6437 nlmsg_free(msg);
026331c4
JM		 6438 return err;
6439}
6440
f7ca38df
JB		 6441static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6442{
6443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6444 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6445 u64 cookie;
6446
6447 if (!info->attrs[NL80211_ATTR_COOKIE])
6448 return -EINVAL;
6449
6450 if (!rdev->ops->mgmt_tx_cancel_wait)
6451 return -EOPNOTSUPP;
6452
71bbc994
JB		 6453 switch (wdev->iftype) {
6454 case NL80211_IFTYPE_STATION:
6455 case NL80211_IFTYPE_ADHOC:
6456 case NL80211_IFTYPE_P2P_CLIENT:
6457 case NL80211_IFTYPE_AP:
6458 case NL80211_IFTYPE_AP_VLAN:
6459 case NL80211_IFTYPE_P2P_GO:
98104fde 6460 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6461 break;
6462 default:
f7ca38df 6463 return -EOPNOTSUPP;
71bbc994 6464 }
f7ca38df
JB		 6465
6466 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6467
e35e4d28 6468 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 6469}
6470
ffb9eb3d
KV		 6471static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6472{
4c476991 6473 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6474 struct wireless_dev *wdev;
4c476991 6475 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6476 u8 ps_state;
6477 bool state;
6478 int err;
6479
4c476991
JB		 6480 if (!info->attrs[NL80211_ATTR_PS_STATE])
6481 return -EINVAL;
ffb9eb3d
KV		 6482
6483 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6484
4c476991
JB		 6485 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6486 return -EINVAL;
ffb9eb3d
KV		 6487
6488 wdev = dev->ieee80211_ptr;
6489
4c476991
JB		 6490 if (!rdev->ops->set_power_mgmt)
6491 return -EOPNOTSUPP;
ffb9eb3d
KV		 6492
6493 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6494
6495 if (state == wdev->ps)
4c476991 6496 return 0;
ffb9eb3d 6497
e35e4d28 6498 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 6499 if (!err)
6500 wdev->ps = state;
ffb9eb3d
KV		 6501 return err;
6502}
6503
6504static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6505{
4c476991 6506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6507 enum nl80211_ps_state ps_state;
6508 struct wireless_dev *wdev;
4c476991 6509 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6510 struct sk_buff *msg;
6511 void *hdr;
6512 int err;
6513
ffb9eb3d
KV		 6514 wdev = dev->ieee80211_ptr;
6515
4c476991
JB		 6516 if (!rdev->ops->set_power_mgmt)
6517 return -EOPNOTSUPP;
ffb9eb3d
KV		 6518
6519 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6520 if (!msg)
6521 return -ENOMEM;
ffb9eb3d 6522
15e47304 6523 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6524 NL80211_CMD_GET_POWER_SAVE);
6525 if (!hdr) {
4c476991 6526 err = -ENOBUFS;
ffb9eb3d
KV		 6527 goto free_msg;
6528 }
6529
6530 if (wdev->ps)
6531 ps_state = NL80211_PS_ENABLED;
6532 else
6533 ps_state = NL80211_PS_DISABLED;
6534
9360ffd1
DM		 6535 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6536 goto nla_put_failure;
ffb9eb3d
KV		 6537
6538 genlmsg_end(msg, hdr);
4c476991 6539 return genlmsg_reply(msg, info);
ffb9eb3d 6540
4c476991 6541 nla_put_failure:
ffb9eb3d 6542 err = -ENOBUFS;
4c476991 6543 free_msg:
ffb9eb3d 6544 nlmsg_free(msg);
ffb9eb3d
KV		 6545 return err;
6546}
6547
d6dc1a38
JO		 6548static struct nla_policy
6549nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6550 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6551 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6552 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6553 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6554 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6555 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6556};
6557
84f10708 6558static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 6559 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 6560{
6561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6562 struct wireless_dev *wdev;
6563 struct net_device *dev = info->user_ptr[1];
6564
d9d8b019 6565 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 6566 return -EINVAL;
6567
6568 wdev = dev->ieee80211_ptr;
6569
6570 if (!rdev->ops->set_cqm_txe_config)
6571 return -EOPNOTSUPP;
6572
6573 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6574 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6575 return -EOPNOTSUPP;
6576
e35e4d28 6577 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 6578}
6579
d6dc1a38
JO		 6580static int nl80211_set_cqm_rssi(struct genl_info *info,
6581 s32 threshold, u32 hysteresis)
6582{
4c476991 6583 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6584 struct wireless_dev *wdev;
4c476991 6585 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6586
6587 if (threshold > 0)
6588 return -EINVAL;
6589
d6dc1a38
JO		 6590 wdev = dev->ieee80211_ptr;
6591
4c476991
JB		 6592 if (!rdev->ops->set_cqm_rssi_config)
6593 return -EOPNOTSUPP;
d6dc1a38 6594
074ac8df 6595 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6596 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6597 return -EOPNOTSUPP;
d6dc1a38 6598
e35e4d28 6599 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 6600}
6601
6602static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6603{
6604 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6605 struct nlattr *cqm;
6606 int err;
6607
6608 cqm = info->attrs[NL80211_ATTR_CQM];
6609 if (!cqm) {
6610 err = -EINVAL;
6611 goto out;
6612 }
6613
6614 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6615 nl80211_attr_cqm_policy);
6616 if (err)
6617 goto out;
6618
6619 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6620 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6621 s32 threshold;
6622 u32 hysteresis;
6623 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6624 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6625 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 6626 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6627 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6628 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6629 u32 rate, pkts, intvl;
6630 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6631 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6632 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6633 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 6634 } else
6635 err = -EINVAL;
6636
6637out:
6638 return err;
6639}
6640
29cbe68c
JB		 6641static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6642{
6643 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6644 struct net_device *dev = info->user_ptr[1];
6645 struct mesh_config cfg;
c80d545d 6646 struct mesh_setup setup;
29cbe68c
JB		 6647 int err;
6648
6649 /* start with default */
6650 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6651 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6652
24bdd9f4 6653 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6654 /* and parse parameters if given */
24bdd9f4 6655 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6656 if (err)
6657 return err;
6658 }
6659
6660 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6661 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6662 return -EINVAL;
6663
c80d545d
JC		 6664 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6665 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6666
4bb62344
CYY		 6667 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6668 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6669 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6670 return -EINVAL;
6671
c80d545d
JC		 6672 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6673 /* parse additional setup parameters if given */
6674 err = nl80211_parse_mesh_setup(info, &setup);
6675 if (err)
6676 return err;
6677 }
6678
cc1d2806 6679 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 6680 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
6681 if (err)
6682 return err;
cc1d2806
JB		 6683 } else {
6684 /* cfg80211_join_mesh() will sort it out */
683b6d3b 6685 setup.chandef.chan = NULL;
cc1d2806
JB		 6686 }
6687
c80d545d 6688 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6689}
6690
6691static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6692{
6693 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6694 struct net_device *dev = info->user_ptr[1];
6695
6696 return cfg80211_leave_mesh(rdev, dev);
6697}
6698
dfb89c56 6699#ifdef CONFIG_PM
ff1b6e69
JB		 6700static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6701{
6702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6703 struct sk_buff *msg;
6704 void *hdr;
6705
6706 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6707 return -EOPNOTSUPP;
6708
6709 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6710 if (!msg)
6711 return -ENOMEM;
6712
15e47304 6713 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 6714 NL80211_CMD_GET_WOWLAN);
6715 if (!hdr)
6716 goto nla_put_failure;
6717
6718 if (rdev->wowlan) {
6719 struct nlattr *nl_wowlan;
6720
6721 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6722 if (!nl_wowlan)
6723 goto nla_put_failure;
6724
9360ffd1
DM		 6725 if ((rdev->wowlan->any &&
6726 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6727 (rdev->wowlan->disconnect &&
6728 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6729 (rdev->wowlan->magic_pkt &&
6730 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6731 (rdev->wowlan->gtk_rekey_failure &&
6732 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6733 (rdev->wowlan->eap_identity_req &&
6734 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6735 (rdev->wowlan->four_way_handshake &&
6736 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6737 (rdev->wowlan->rfkill_release &&
6738 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6739 goto nla_put_failure;
ff1b6e69
JB		 6740 if (rdev->wowlan->n_patterns) {
6741 struct nlattr *nl_pats, *nl_pat;
6742 int i, pat_len;
6743
6744 nl_pats = nla_nest_start(msg,
6745 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6746 if (!nl_pats)
6747 goto nla_put_failure;
6748
6749 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6750 nl_pat = nla_nest_start(msg, i + 1);
6751 if (!nl_pat)
6752 goto nla_put_failure;
6753 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6754 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6755 DIV_ROUND_UP(pat_len, 8),
6756 rdev->wowlan->patterns[i].mask) ||
6757 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6758 pat_len,
6759 rdev->wowlan->patterns[i].pattern))
6760 goto nla_put_failure;
ff1b6e69
JB		 6761 nla_nest_end(msg, nl_pat);
6762 }
6763 nla_nest_end(msg, nl_pats);
6764 }
6765
6766 nla_nest_end(msg, nl_wowlan);
6767 }
6768
6769 genlmsg_end(msg, hdr);
6770 return genlmsg_reply(msg, info);
6771
6772nla_put_failure:
6773 nlmsg_free(msg);
6774 return -ENOBUFS;
6775}
6776
6777static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6778{
6779 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6780 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 6781 struct cfg80211_wowlan new_triggers = {};
ae33bd81 6782 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 6783 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6784 int err, i;
6d52563f 6785 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6786
6787 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6788 return -EOPNOTSUPP;
6789
ae33bd81
JB		 6790 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6791 cfg80211_rdev_free_wowlan(rdev);
6792 rdev->wowlan = NULL;
6793 goto set_wakeup;
6794 }
ff1b6e69
JB		 6795
6796 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6797 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6798 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6799 nl80211_wowlan_policy);
6800 if (err)
6801 return err;
6802
6803 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6804 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6805 return -EINVAL;
6806 new_triggers.any = true;
6807 }
6808
6809 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6810 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6811 return -EINVAL;
6812 new_triggers.disconnect = true;
6813 }
6814
6815 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6816 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6817 return -EINVAL;
6818 new_triggers.magic_pkt = true;
6819 }
6820
77dbbb13
JB		 6821 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6822 return -EINVAL;
6823
6824 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6825 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6826 return -EINVAL;
6827 new_triggers.gtk_rekey_failure = true;
6828 }
6829
6830 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6831 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6832 return -EINVAL;
6833 new_triggers.eap_identity_req = true;
6834 }
6835
6836 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6837 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6838 return -EINVAL;
6839 new_triggers.four_way_handshake = true;
6840 }
6841
6842 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6843 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6844 return -EINVAL;
6845 new_triggers.rfkill_release = true;
6846 }
6847
ff1b6e69
JB		 6848 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6849 struct nlattr *pat;
6850 int n_patterns = 0;
6851 int rem, pat_len, mask_len;
6852 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6853
6854 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6855 rem)
6856 n_patterns++;
6857 if (n_patterns > wowlan->n_patterns)
6858 return -EINVAL;
6859
6860 new_triggers.patterns = kcalloc(n_patterns,
6861 sizeof(new_triggers.patterns[0]),
6862 GFP_KERNEL);
6863 if (!new_triggers.patterns)
6864 return -ENOMEM;
6865
6866 new_triggers.n_patterns = n_patterns;
6867 i = 0;
6868
6869 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6870 rem) {
6871 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6872 nla_data(pat), nla_len(pat), NULL);
6873 err = -EINVAL;
6874 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6875 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6876 goto error;
6877 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6878 mask_len = DIV_ROUND_UP(pat_len, 8);
6879 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6880 mask_len)
6881 goto error;
6882 if (pat_len > wowlan->pattern_max_len ||
6883 pat_len < wowlan->pattern_min_len)
6884 goto error;
6885
6886 new_triggers.patterns[i].mask =
6887 kmalloc(mask_len + pat_len, GFP_KERNEL);
6888 if (!new_triggers.patterns[i].mask) {
6889 err = -ENOMEM;
6890 goto error;
6891 }
6892 new_triggers.patterns[i].pattern =
6893 new_triggers.patterns[i].mask + mask_len;
6894 memcpy(new_triggers.patterns[i].mask,
6895 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6896 mask_len);
6897 new_triggers.patterns[i].pattern_len = pat_len;
6898 memcpy(new_triggers.patterns[i].pattern,
6899 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6900 pat_len);
6901 i++;
6902 }
6903 }
6904
ae33bd81
JB		 6905 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6906 if (!ntrig) {
6907 err = -ENOMEM;
6908 goto error;
ff1b6e69 6909 }
ae33bd81
JB		 6910 cfg80211_rdev_free_wowlan(rdev);
6911 rdev->wowlan = ntrig;
ff1b6e69 6912
ae33bd81 6913 set_wakeup:
6d52563f 6914 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 6915 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 6916
ff1b6e69
JB		 6917 return 0;
6918 error:
6919 for (i = 0; i < new_triggers.n_patterns; i++)
6920 kfree(new_triggers.patterns[i].mask);
6921 kfree(new_triggers.patterns);
6922 return err;
6923}
dfb89c56 6924#endif
ff1b6e69 6925
e5497d76
JB		 6926static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6927{
6928 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6929 struct net_device *dev = info->user_ptr[1];
6930 struct wireless_dev *wdev = dev->ieee80211_ptr;
6931 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6932 struct cfg80211_gtk_rekey_data rekey_data;
6933 int err;
6934
6935 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6936 return -EINVAL;
6937
6938 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6939 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6940 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6941 nl80211_rekey_policy);
6942 if (err)
6943 return err;
6944
6945 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6946 return -ERANGE;
6947 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6948 return -ERANGE;
6949 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6950 return -ERANGE;
6951
6952 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6953 NL80211_KEK_LEN);
6954 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6955 NL80211_KCK_LEN);
6956 memcpy(rekey_data.replay_ctr,
6957 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6958 NL80211_REPLAY_CTR_LEN);
6959
6960 wdev_lock(wdev);
6961 if (!wdev->current_bss) {
6962 err = -ENOTCONN;
6963 goto out;
6964 }
6965
6966 if (!rdev->ops->set_rekey_data) {
6967 err = -EOPNOTSUPP;
6968 goto out;
6969 }
6970
e35e4d28 6971 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 6972 out:
6973 wdev_unlock(wdev);
6974 return err;
6975}
6976
28946da7
JB		 6977static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6978 struct genl_info *info)
6979{
6980 struct net_device *dev = info->user_ptr[1];
6981 struct wireless_dev *wdev = dev->ieee80211_ptr;
6982
6983 if (wdev->iftype != NL80211_IFTYPE_AP &&
6984 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6985 return -EINVAL;
6986
15e47304 6987 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 6988 return -EBUSY;
6989
15e47304 6990 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 6991 return 0;
6992}
6993
7f6cf311
JB		 6994static int nl80211_probe_client(struct sk_buff *skb,
6995 struct genl_info *info)
6996{
6997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6998 struct net_device *dev = info->user_ptr[1];
6999 struct wireless_dev *wdev = dev->ieee80211_ptr;
7000 struct sk_buff *msg;
7001 void *hdr;
7002 const u8 *addr;
7003 u64 cookie;
7004 int err;
7005
7006 if (wdev->iftype != NL80211_IFTYPE_AP &&
7007 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7008 return -EOPNOTSUPP;
7009
7010 if (!info->attrs[NL80211_ATTR_MAC])
7011 return -EINVAL;
7012
7013 if (!rdev->ops->probe_client)
7014 return -EOPNOTSUPP;
7015
7016 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7017 if (!msg)
7018 return -ENOMEM;
7019
15e47304 7020 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 7021 NL80211_CMD_PROBE_CLIENT);
7022
7023 if (IS_ERR(hdr)) {
7024 err = PTR_ERR(hdr);
7025 goto free_msg;
7026 }
7027
7028 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7029
e35e4d28 7030 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 7031 if (err)
7032 goto free_msg;
7033
9360ffd1
DM		 7034 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7035 goto nla_put_failure;
7f6cf311
JB		 7036
7037 genlmsg_end(msg, hdr);
7038
7039 return genlmsg_reply(msg, info);
7040
7041 nla_put_failure:
7042 err = -ENOBUFS;
7043 free_msg:
7044 nlmsg_free(msg);
7045 return err;
7046}
7047
5e760230
JB		 7048static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7049{
7050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 7051 struct cfg80211_beacon_registration *reg, *nreg;
7052 int rv;
5e760230
JB		 7053
7054 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7055 return -EOPNOTSUPP;
7056
37c73b5f
BG		 7057 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7058 if (!nreg)
7059 return -ENOMEM;
7060
7061 /* First, check if already registered. */
7062 spin_lock_bh(&rdev->beacon_registrations_lock);
7063 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7064 if (reg->nlportid == info->snd_portid) {
7065 rv = -EALREADY;
7066 goto out_err;
7067 }
7068 }
7069 /* Add it to the list */
7070 nreg->nlportid = info->snd_portid;
7071 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 7072
37c73b5f 7073 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 7074
7075 return 0;
37c73b5f
BG		 7076out_err:
7077 spin_unlock_bh(&rdev->beacon_registrations_lock);
7078 kfree(nreg);
7079 return rv;
5e760230
JB		 7080}
7081
98104fde
JB		 7082static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7083{
7084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7085 struct wireless_dev *wdev = info->user_ptr[1];
7086 int err;
7087
7088 if (!rdev->ops->start_p2p_device)
7089 return -EOPNOTSUPP;
7090
7091 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7092 return -EOPNOTSUPP;
7093
7094 if (wdev->p2p_started)
7095 return 0;
7096
7097 mutex_lock(&rdev->devlist_mtx);
7098 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7099 mutex_unlock(&rdev->devlist_mtx);
7100 if (err)
7101 return err;
7102
eeb126e9 7103 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 7104 if (err)
7105 return err;
7106
7107 wdev->p2p_started = true;
7108 mutex_lock(&rdev->devlist_mtx);
7109 rdev->opencount++;
7110 mutex_unlock(&rdev->devlist_mtx);
7111
7112 return 0;
7113}
7114
7115static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7116{
7117 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7118 struct wireless_dev *wdev = info->user_ptr[1];
7119
7120 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7121 return -EOPNOTSUPP;
7122
7123 if (!rdev->ops->stop_p2p_device)
7124 return -EOPNOTSUPP;
7125
7126 if (!wdev->p2p_started)
7127 return 0;
7128
eeb126e9 7129 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 7130 wdev->p2p_started = false;
7131
7132 mutex_lock(&rdev->devlist_mtx);
7133 rdev->opencount--;
7134 mutex_unlock(&rdev->devlist_mtx);
7135
7136 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7137 rdev->scan_req->aborted = true;
7138 ___cfg80211_scan_done(rdev, true);
7139 }
7140
7141 return 0;
7142}
7143
4c476991
JB		 7144#define NL80211_FLAG_NEED_WIPHY 0x01
7145#define NL80211_FLAG_NEED_NETDEV 0x02
7146#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 7147#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7148#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7149 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 7150#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 7151/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 7152#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7153 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 7154
7155static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7156 struct genl_info *info)
7157{
7158 struct cfg80211_registered_device *rdev;
89a54e48 7159 struct wireless_dev *wdev;
4c476991 7160 struct net_device *dev;
4c476991
JB		 7161 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7162
7163 if (rtnl)
7164 rtnl_lock();
7165
7166 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 7167 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 7168 if (IS_ERR(rdev)) {
7169 if (rtnl)
7170 rtnl_unlock();
7171 return PTR_ERR(rdev);
7172 }
7173 info->user_ptr[0] = rdev;
1bf614ef
JB		 7174 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7175 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7176 mutex_lock(&cfg80211_mutex);
7177 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7178 info->attrs);
7179 if (IS_ERR(wdev)) {
7180 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7181 if (rtnl)
7182 rtnl_unlock();
89a54e48 7183 return PTR_ERR(wdev);
4c476991 7184 }
89a54e48 7185
89a54e48
JB		 7186 dev = wdev->netdev;
7187 rdev = wiphy_to_dev(wdev->wiphy);
7188
1bf614ef
JB		 7189 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7190 if (!dev) {
7191 mutex_unlock(&cfg80211_mutex);
7192 if (rtnl)
7193 rtnl_unlock();
7194 return -EINVAL;
7195 }
7196
7197 info->user_ptr[1] = dev;
7198 } else {
7199 info->user_ptr[1] = wdev;
41265714 7200 }
1bf614ef
JB		 7201
7202 if (dev) {
7203 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7204 !netif_running(dev)) {
7205 mutex_unlock(&cfg80211_mutex);
7206 if (rtnl)
7207 rtnl_unlock();
7208 return -ENETDOWN;
7209 }
7210
7211 dev_hold(dev);
98104fde
JB		 7212 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7213 if (!wdev->p2p_started) {
7214 mutex_unlock(&cfg80211_mutex);
7215 if (rtnl)
7216 rtnl_unlock();
7217 return -ENETDOWN;
7218 }
41265714 7219 }
89a54e48 7220
89a54e48
JB		 7221 cfg80211_lock_rdev(rdev);
7222
7223 mutex_unlock(&cfg80211_mutex);
7224
4c476991 7225 info->user_ptr[0] = rdev;
4c476991
JB		 7226 }
7227
7228 return 0;
7229}
7230
7231static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7232 struct genl_info *info)
7233{
7234 if (info->user_ptr[0])
7235 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7236 if (info->user_ptr[1]) {
7237 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7238 struct wireless_dev *wdev = info->user_ptr[1];
7239
7240 if (wdev->netdev)
7241 dev_put(wdev->netdev);
7242 } else {
7243 dev_put(info->user_ptr[1]);
7244 }
7245 }
4c476991
JB		 7246 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7247 rtnl_unlock();
7248}
7249
55682965
JB		 7250static struct genl_ops nl80211_ops[] = {
7251 {
7252 .cmd = NL80211_CMD_GET_WIPHY,
7253 .doit = nl80211_get_wiphy,
7254 .dumpit = nl80211_dump_wiphy,
7255 .policy = nl80211_policy,
7256 /* can be retrieved by unprivileged users */
4c476991 7257 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7258 },
7259 {
7260 .cmd = NL80211_CMD_SET_WIPHY,
7261 .doit = nl80211_set_wiphy,
7262 .policy = nl80211_policy,
7263 .flags = GENL_ADMIN_PERM,
4c476991 7264 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7265 },
7266 {
7267 .cmd = NL80211_CMD_GET_INTERFACE,
7268 .doit = nl80211_get_interface,
7269 .dumpit = nl80211_dump_interface,
7270 .policy = nl80211_policy,
7271 /* can be retrieved by unprivileged users */
72fb2abc 7272 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7273 },
7274 {
7275 .cmd = NL80211_CMD_SET_INTERFACE,
7276 .doit = nl80211_set_interface,
7277 .policy = nl80211_policy,
7278 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7279 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7280 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7281 },
7282 {
7283 .cmd = NL80211_CMD_NEW_INTERFACE,
7284 .doit = nl80211_new_interface,
7285 .policy = nl80211_policy,
7286 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7287 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7288 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7289 },
7290 {
7291 .cmd = NL80211_CMD_DEL_INTERFACE,
7292 .doit = nl80211_del_interface,
7293 .policy = nl80211_policy,
41ade00f 7294 .flags = GENL_ADMIN_PERM,
84efbb84 7295 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7296 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7297 },
7298 {
7299 .cmd = NL80211_CMD_GET_KEY,
7300 .doit = nl80211_get_key,
7301 .policy = nl80211_policy,
7302 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7303 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7304 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7305 },
7306 {
7307 .cmd = NL80211_CMD_SET_KEY,
7308 .doit = nl80211_set_key,
7309 .policy = nl80211_policy,
7310 .flags = GENL_ADMIN_PERM,
41265714 7311 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7312 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7313 },
7314 {
7315 .cmd = NL80211_CMD_NEW_KEY,
7316 .doit = nl80211_new_key,
7317 .policy = nl80211_policy,
7318 .flags = GENL_ADMIN_PERM,
41265714 7319 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7320 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7321 },
7322 {
7323 .cmd = NL80211_CMD_DEL_KEY,
7324 .doit = nl80211_del_key,
7325 .policy = nl80211_policy,
55682965 7326 .flags = GENL_ADMIN_PERM,
41265714 7327 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7328 NL80211_FLAG_NEED_RTNL,
55682965 7329 },
ed1b6cc7
JB		 7330 {
7331 .cmd = NL80211_CMD_SET_BEACON,
7332 .policy = nl80211_policy,
7333 .flags = GENL_ADMIN_PERM,
8860020e 7334 .doit = nl80211_set_beacon,
2b5f8b0b 7335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7336 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7337 },
7338 {
8860020e 7339 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7340 .policy = nl80211_policy,
7341 .flags = GENL_ADMIN_PERM,
8860020e 7342 .doit = nl80211_start_ap,
2b5f8b0b 7343 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7344 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7345 },
7346 {
8860020e 7347 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7348 .policy = nl80211_policy,
7349 .flags = GENL_ADMIN_PERM,
8860020e 7350 .doit = nl80211_stop_ap,
2b5f8b0b 7351 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7352 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7353 },
5727ef1b
JB		 7354 {
7355 .cmd = NL80211_CMD_GET_STATION,
7356 .doit = nl80211_get_station,
2ec600d6 7357 .dumpit = nl80211_dump_station,
5727ef1b 7358 .policy = nl80211_policy,
4c476991
JB		 7359 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7360 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7361 },
7362 {
7363 .cmd = NL80211_CMD_SET_STATION,
7364 .doit = nl80211_set_station,
7365 .policy = nl80211_policy,
7366 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7367 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7368 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7369 },
7370 {
7371 .cmd = NL80211_CMD_NEW_STATION,
7372 .doit = nl80211_new_station,
7373 .policy = nl80211_policy,
7374 .flags = GENL_ADMIN_PERM,
41265714 7375 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7376 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7377 },
7378 {
7379 .cmd = NL80211_CMD_DEL_STATION,
7380 .doit = nl80211_del_station,
7381 .policy = nl80211_policy,
2ec600d6 7382 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7383 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7384 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7385 },
7386 {
7387 .cmd = NL80211_CMD_GET_MPATH,
7388 .doit = nl80211_get_mpath,
7389 .dumpit = nl80211_dump_mpath,
7390 .policy = nl80211_policy,
7391 .flags = GENL_ADMIN_PERM,
41265714 7392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7393 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7394 },
7395 {
7396 .cmd = NL80211_CMD_SET_MPATH,
7397 .doit = nl80211_set_mpath,
7398 .policy = nl80211_policy,
7399 .flags = GENL_ADMIN_PERM,
41265714 7400 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7401 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7402 },
7403 {
7404 .cmd = NL80211_CMD_NEW_MPATH,
7405 .doit = nl80211_new_mpath,
7406 .policy = nl80211_policy,
7407 .flags = GENL_ADMIN_PERM,
41265714 7408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7409 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7410 },
7411 {
7412 .cmd = NL80211_CMD_DEL_MPATH,
7413 .doit = nl80211_del_mpath,
7414 .policy = nl80211_policy,
9f1ba906 7415 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7417 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 7418 },
7419 {
7420 .cmd = NL80211_CMD_SET_BSS,
7421 .doit = nl80211_set_bss,
7422 .policy = nl80211_policy,
b2e1b302 7423 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7425 NL80211_FLAG_NEED_RTNL,
b2e1b302 7426 },
f130347c
LR		 7427 {
7428 .cmd = NL80211_CMD_GET_REG,
7429 .doit = nl80211_get_reg,
7430 .policy = nl80211_policy,
7431 /* can be retrieved by unprivileged users */
7432 },
b2e1b302
LR		 7433 {
7434 .cmd = NL80211_CMD_SET_REG,
7435 .doit = nl80211_set_reg,
7436 .policy = nl80211_policy,
7437 .flags = GENL_ADMIN_PERM,
7438 },
7439 {
7440 .cmd = NL80211_CMD_REQ_SET_REG,
7441 .doit = nl80211_req_set_reg,
7442 .policy = nl80211_policy,
93da9cc1 7443 .flags = GENL_ADMIN_PERM,
7444 },
7445 {
24bdd9f4
JC		 7446 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7447 .doit = nl80211_get_mesh_config,
93da9cc1 7448 .policy = nl80211_policy,
7449 /* can be retrieved by unprivileged users */
2b5f8b0b 7450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7451 NL80211_FLAG_NEED_RTNL,
93da9cc1 7452 },
7453 {
24bdd9f4
JC		 7454 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7455 .doit = nl80211_update_mesh_config,
93da9cc1 7456 .policy = nl80211_policy,
9aed3cc1 7457 .flags = GENL_ADMIN_PERM,
29cbe68c 7458 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7459 NL80211_FLAG_NEED_RTNL,
9aed3cc1 7460 },
2a519311
JB		 7461 {
7462 .cmd = NL80211_CMD_TRIGGER_SCAN,
7463 .doit = nl80211_trigger_scan,
7464 .policy = nl80211_policy,
7465 .flags = GENL_ADMIN_PERM,
fd014284 7466 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7467 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 7468 },
7469 {
7470 .cmd = NL80211_CMD_GET_SCAN,
7471 .policy = nl80211_policy,
7472 .dumpit = nl80211_dump_scan,
7473 },
807f8a8c
LC		 7474 {
7475 .cmd = NL80211_CMD_START_SCHED_SCAN,
7476 .doit = nl80211_start_sched_scan,
7477 .policy = nl80211_policy,
7478 .flags = GENL_ADMIN_PERM,
7479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7480 NL80211_FLAG_NEED_RTNL,
7481 },
7482 {
7483 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7484 .doit = nl80211_stop_sched_scan,
7485 .policy = nl80211_policy,
7486 .flags = GENL_ADMIN_PERM,
7487 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7488 NL80211_FLAG_NEED_RTNL,
7489 },
636a5d36
JM		 7490 {
7491 .cmd = NL80211_CMD_AUTHENTICATE,
7492 .doit = nl80211_authenticate,
7493 .policy = nl80211_policy,
7494 .flags = GENL_ADMIN_PERM,
41265714 7495 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7496 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7497 },
7498 {
7499 .cmd = NL80211_CMD_ASSOCIATE,
7500 .doit = nl80211_associate,
7501 .policy = nl80211_policy,
7502 .flags = GENL_ADMIN_PERM,
41265714 7503 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7504 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7505 },
7506 {
7507 .cmd = NL80211_CMD_DEAUTHENTICATE,
7508 .doit = nl80211_deauthenticate,
7509 .policy = nl80211_policy,
7510 .flags = GENL_ADMIN_PERM,
41265714 7511 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7512 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7513 },
7514 {
7515 .cmd = NL80211_CMD_DISASSOCIATE,
7516 .doit = nl80211_disassociate,
7517 .policy = nl80211_policy,
7518 .flags = GENL_ADMIN_PERM,
41265714 7519 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7520 NL80211_FLAG_NEED_RTNL,
636a5d36 7521 },
04a773ad
JB		 7522 {
7523 .cmd = NL80211_CMD_JOIN_IBSS,
7524 .doit = nl80211_join_ibss,
7525 .policy = nl80211_policy,
7526 .flags = GENL_ADMIN_PERM,
41265714 7527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7528 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 7529 },
7530 {
7531 .cmd = NL80211_CMD_LEAVE_IBSS,
7532 .doit = nl80211_leave_ibss,
7533 .policy = nl80211_policy,
7534 .flags = GENL_ADMIN_PERM,
41265714 7535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7536 NL80211_FLAG_NEED_RTNL,
04a773ad 7537 },
aff89a9b
JB		 7538#ifdef CONFIG_NL80211_TESTMODE
7539 {
7540 .cmd = NL80211_CMD_TESTMODE,
7541 .doit = nl80211_testmode_do,
71063f0e 7542 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7543 .policy = nl80211_policy,
7544 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7545 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7546 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7547 },
7548#endif
b23aa676
SO		 7549 {
7550 .cmd = NL80211_CMD_CONNECT,
7551 .doit = nl80211_connect,
7552 .policy = nl80211_policy,
7553 .flags = GENL_ADMIN_PERM,
41265714 7554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7555 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7556 },
7557 {
7558 .cmd = NL80211_CMD_DISCONNECT,
7559 .doit = nl80211_disconnect,
7560 .policy = nl80211_policy,
7561 .flags = GENL_ADMIN_PERM,
41265714 7562 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7563 NL80211_FLAG_NEED_RTNL,
b23aa676 7564 },
463d0183
JB		 7565 {
7566 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7567 .doit = nl80211_wiphy_netns,
7568 .policy = nl80211_policy,
7569 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7570 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7571 NL80211_FLAG_NEED_RTNL,
463d0183 7572 },
61fa713c
HS		 7573 {
7574 .cmd = NL80211_CMD_GET_SURVEY,
7575 .policy = nl80211_policy,
7576 .dumpit = nl80211_dump_survey,
7577 },
67fbb16b
SO		 7578 {
7579 .cmd = NL80211_CMD_SET_PMKSA,
7580 .doit = nl80211_setdel_pmksa,
7581 .policy = nl80211_policy,
7582 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7584 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7585 },
7586 {
7587 .cmd = NL80211_CMD_DEL_PMKSA,
7588 .doit = nl80211_setdel_pmksa,
7589 .policy = nl80211_policy,
7590 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7592 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7593 },
7594 {
7595 .cmd = NL80211_CMD_FLUSH_PMKSA,
7596 .doit = nl80211_flush_pmksa,
7597 .policy = nl80211_policy,
7598 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7600 NL80211_FLAG_NEED_RTNL,
67fbb16b 7601 },
9588bbd5
JM		 7602 {
7603 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7604 .doit = nl80211_remain_on_channel,
7605 .policy = nl80211_policy,
7606 .flags = GENL_ADMIN_PERM,
71bbc994 7607 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7608 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7609 },
7610 {
7611 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7612 .doit = nl80211_cancel_remain_on_channel,
7613 .policy = nl80211_policy,
7614 .flags = GENL_ADMIN_PERM,
71bbc994 7615 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7616 NL80211_FLAG_NEED_RTNL,
9588bbd5 7617 },
13ae75b1
JM		 7618 {
7619 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7620 .doit = nl80211_set_tx_bitrate_mask,
7621 .policy = nl80211_policy,
7622 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7623 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7624 NL80211_FLAG_NEED_RTNL,
13ae75b1 7625 },
026331c4 7626 {
2e161f78
JB		 7627 .cmd = NL80211_CMD_REGISTER_FRAME,
7628 .doit = nl80211_register_mgmt,
026331c4
JM		 7629 .policy = nl80211_policy,
7630 .flags = GENL_ADMIN_PERM,
71bbc994 7631 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7632 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7633 },
7634 {
2e161f78
JB		 7635 .cmd = NL80211_CMD_FRAME,
7636 .doit = nl80211_tx_mgmt,
026331c4 7637 .policy = nl80211_policy,
f7ca38df 7638 .flags = GENL_ADMIN_PERM,
71bbc994 7639 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 7640 NL80211_FLAG_NEED_RTNL,
7641 },
7642 {
7643 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7644 .doit = nl80211_tx_mgmt_cancel_wait,
7645 .policy = nl80211_policy,
026331c4 7646 .flags = GENL_ADMIN_PERM,
71bbc994 7647 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7648 NL80211_FLAG_NEED_RTNL,
026331c4 7649 },
ffb9eb3d
KV		 7650 {
7651 .cmd = NL80211_CMD_SET_POWER_SAVE,
7652 .doit = nl80211_set_power_save,
7653 .policy = nl80211_policy,
7654 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7655 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7656 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7657 },
7658 {
7659 .cmd = NL80211_CMD_GET_POWER_SAVE,
7660 .doit = nl80211_get_power_save,
7661 .policy = nl80211_policy,
7662 /* can be retrieved by unprivileged users */
4c476991
JB		 7663 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7664 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7665 },
d6dc1a38
JO		 7666 {
7667 .cmd = NL80211_CMD_SET_CQM,
7668 .doit = nl80211_set_cqm,
7669 .policy = nl80211_policy,
7670 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7671 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7672 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7673 },
f444de05
JB		 7674 {
7675 .cmd = NL80211_CMD_SET_CHANNEL,
7676 .doit = nl80211_set_channel,
7677 .policy = nl80211_policy,
7678 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7679 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7680 NL80211_FLAG_NEED_RTNL,
f444de05 7681 },
e8347eba
BJ		 7682 {
7683 .cmd = NL80211_CMD_SET_WDS_PEER,
7684 .doit = nl80211_set_wds_peer,
7685 .policy = nl80211_policy,
7686 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7687 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7688 NL80211_FLAG_NEED_RTNL,
e8347eba 7689 },
29cbe68c
JB		 7690 {
7691 .cmd = NL80211_CMD_JOIN_MESH,
7692 .doit = nl80211_join_mesh,
7693 .policy = nl80211_policy,
7694 .flags = GENL_ADMIN_PERM,
7695 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7696 NL80211_FLAG_NEED_RTNL,
7697 },
7698 {
7699 .cmd = NL80211_CMD_LEAVE_MESH,
7700 .doit = nl80211_leave_mesh,
7701 .policy = nl80211_policy,
7702 .flags = GENL_ADMIN_PERM,
7703 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7704 NL80211_FLAG_NEED_RTNL,
7705 },
dfb89c56 7706#ifdef CONFIG_PM
ff1b6e69
JB		 7707 {
7708 .cmd = NL80211_CMD_GET_WOWLAN,
7709 .doit = nl80211_get_wowlan,
7710 .policy = nl80211_policy,
7711 /* can be retrieved by unprivileged users */
7712 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7713 NL80211_FLAG_NEED_RTNL,
7714 },
7715 {
7716 .cmd = NL80211_CMD_SET_WOWLAN,
7717 .doit = nl80211_set_wowlan,
7718 .policy = nl80211_policy,
7719 .flags = GENL_ADMIN_PERM,
7720 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7721 NL80211_FLAG_NEED_RTNL,
7722 },
dfb89c56 7723#endif
e5497d76
JB		 7724 {
7725 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7726 .doit = nl80211_set_rekey_data,
7727 .policy = nl80211_policy,
7728 .flags = GENL_ADMIN_PERM,
7729 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7730 NL80211_FLAG_NEED_RTNL,
7731 },
109086ce
AN		 7732 {
7733 .cmd = NL80211_CMD_TDLS_MGMT,
7734 .doit = nl80211_tdls_mgmt,
7735 .policy = nl80211_policy,
7736 .flags = GENL_ADMIN_PERM,
7737 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7738 NL80211_FLAG_NEED_RTNL,
7739 },
7740 {
7741 .cmd = NL80211_CMD_TDLS_OPER,
7742 .doit = nl80211_tdls_oper,
7743 .policy = nl80211_policy,
7744 .flags = GENL_ADMIN_PERM,
7745 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7746 NL80211_FLAG_NEED_RTNL,
7747 },
28946da7
JB		 7748 {
7749 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7750 .doit = nl80211_register_unexpected_frame,
7751 .policy = nl80211_policy,
7752 .flags = GENL_ADMIN_PERM,
7753 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7754 NL80211_FLAG_NEED_RTNL,
7755 },
7f6cf311
JB		 7756 {
7757 .cmd = NL80211_CMD_PROBE_CLIENT,
7758 .doit = nl80211_probe_client,
7759 .policy = nl80211_policy,
7760 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7761 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7762 NL80211_FLAG_NEED_RTNL,
7763 },
5e760230
JB		 7764 {
7765 .cmd = NL80211_CMD_REGISTER_BEACONS,
7766 .doit = nl80211_register_beacons,
7767 .policy = nl80211_policy,
7768 .flags = GENL_ADMIN_PERM,
7769 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7770 NL80211_FLAG_NEED_RTNL,
7771 },
1d9d9213
SW		 7772 {
7773 .cmd = NL80211_CMD_SET_NOACK_MAP,
7774 .doit = nl80211_set_noack_map,
7775 .policy = nl80211_policy,
7776 .flags = GENL_ADMIN_PERM,
7777 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7778 NL80211_FLAG_NEED_RTNL,
7779 },
98104fde
JB		 7780 {
7781 .cmd = NL80211_CMD_START_P2P_DEVICE,
7782 .doit = nl80211_start_p2p_device,
7783 .policy = nl80211_policy,
7784 .flags = GENL_ADMIN_PERM,
7785 .internal_flags = NL80211_FLAG_NEED_WDEV |
7786 NL80211_FLAG_NEED_RTNL,
7787 },
7788 {
7789 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7790 .doit = nl80211_stop_p2p_device,
7791 .policy = nl80211_policy,
7792 .flags = GENL_ADMIN_PERM,
7793 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7794 NL80211_FLAG_NEED_RTNL,
7795 },
f4e583c8
AQ		 7796 {
7797 .cmd = NL80211_CMD_SET_MCAST_RATE,
7798 .doit = nl80211_set_mcast_rate,
7799 .policy = nl80211_policy,
7800 .flags = GENL_ADMIN_PERM,
7801 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7802 NL80211_FLAG_NEED_RTNL,
7803 },
55682965 7804};
9588bbd5 7805
6039f6d2
JM		 7806static struct genl_multicast_group nl80211_mlme_mcgrp = {
7807 .name = "mlme",
7808};
55682965
JB		 7809
7810/* multicast groups */
7811static struct genl_multicast_group nl80211_config_mcgrp = {
7812 .name = "config",
7813};
2a519311
JB		 7814static struct genl_multicast_group nl80211_scan_mcgrp = {
7815 .name = "scan",
7816};
73d54c9e
LR		 7817static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7818 .name = "regulatory",
7819};
55682965
JB		 7820
7821/* notification functions */
7822
7823void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7824{
7825 struct sk_buff *msg;
7826
fd2120ca 7827 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7828 if (!msg)
7829 return;
7830
7831 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7832 nlmsg_free(msg);
7833 return;
7834 }
7835
463d0183
JB		 7836 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7837 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7838}
7839
362a415d
JB		 7840static int nl80211_add_scan_req(struct sk_buff *msg,
7841 struct cfg80211_registered_device *rdev)
7842{
7843 struct cfg80211_scan_request *req = rdev->scan_req;
7844 struct nlattr *nest;
7845 int i;
7846
667503dd
JB		 7847 ASSERT_RDEV_LOCK(rdev);
7848
362a415d
JB		 7849 if (WARN_ON(!req))
7850 return 0;
7851
7852 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7853 if (!nest)
7854 goto nla_put_failure;
9360ffd1
DM		 7855 for (i = 0; i < req->n_ssids; i++) {
7856 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7857 goto nla_put_failure;
7858 }
362a415d
JB		 7859 nla_nest_end(msg, nest);
7860
7861 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7862 if (!nest)
7863 goto nla_put_failure;
9360ffd1
DM		 7864 for (i = 0; i < req->n_channels; i++) {
7865 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7866 goto nla_put_failure;
7867 }
362a415d
JB		 7868 nla_nest_end(msg, nest);
7869
9360ffd1
DM		 7870 if (req->ie &&
7871 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7872 goto nla_put_failure;
362a415d 7873
ed473771
SL		 7874 if (req->flags)
7875 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7876
362a415d
JB		 7877 return 0;
7878 nla_put_failure:
7879 return -ENOBUFS;
7880}
7881
a538e2d5
JB		 7882static int nl80211_send_scan_msg(struct sk_buff *msg,
7883 struct cfg80211_registered_device *rdev,
fd014284 7884 struct wireless_dev *wdev,
15e47304 7885 u32 portid, u32 seq, int flags,
a538e2d5 7886 u32 cmd)
2a519311
JB		 7887{
7888 void *hdr;
7889
15e47304 7890 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 7891 if (!hdr)
7892 return -1;
7893
9360ffd1 7894 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 7895 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7896 wdev->netdev->ifindex)) ||
7897 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 7898 goto nla_put_failure;
2a519311 7899
362a415d
JB		 7900 /* ignore errors and send incomplete event anyway */
7901 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7902
7903 return genlmsg_end(msg, hdr);
7904
7905 nla_put_failure:
7906 genlmsg_cancel(msg, hdr);
7907 return -EMSGSIZE;
7908}
7909
807f8a8c
LC		 7910static int
7911nl80211_send_sched_scan_msg(struct sk_buff *msg,
7912 struct cfg80211_registered_device *rdev,
7913 struct net_device *netdev,
15e47304 7914 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 7915{
7916 void *hdr;
7917
15e47304 7918 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 7919 if (!hdr)
7920 return -1;
7921
9360ffd1
DM		 7922 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7923 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7924 goto nla_put_failure;
807f8a8c
LC		 7925
7926 return genlmsg_end(msg, hdr);
7927
7928 nla_put_failure:
7929 genlmsg_cancel(msg, hdr);
7930 return -EMSGSIZE;
7931}
7932
a538e2d5 7933void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 7934 struct wireless_dev *wdev)
a538e2d5
JB		 7935{
7936 struct sk_buff *msg;
7937
58050fce 7938 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 7939 if (!msg)
7940 return;
7941
fd014284 7942 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 7943 NL80211_CMD_TRIGGER_SCAN) < 0) {
7944 nlmsg_free(msg);
7945 return;
7946 }
7947
463d0183
JB		 7948 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7949 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7950}
7951
2a519311 7952void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 7953 struct wireless_dev *wdev)
2a519311
JB		 7954{
7955 struct sk_buff *msg;
7956
fd2120ca 7957 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7958 if (!msg)
7959 return;
7960
fd014284 7961 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7962 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7963 nlmsg_free(msg);
7964 return;
7965 }
7966
463d0183
JB		 7967 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7968 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7969}
7970
7971void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 7972 struct wireless_dev *wdev)
2a519311
JB		 7973{
7974 struct sk_buff *msg;
7975
fd2120ca 7976 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7977 if (!msg)
7978 return;
7979
fd014284 7980 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7981 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7982 nlmsg_free(msg);
7983 return;
7984 }
7985
463d0183
JB		 7986 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7987 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7988}
7989
807f8a8c
LC		 7990void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7991 struct net_device *netdev)
7992{
7993 struct sk_buff *msg;
7994
7995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7996 if (!msg)
7997 return;
7998
7999 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8000 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8001 nlmsg_free(msg);
8002 return;
8003 }
8004
8005 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8006 nl80211_scan_mcgrp.id, GFP_KERNEL);
8007}
8008
8009void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8010 struct net_device *netdev, u32 cmd)
8011{
8012 struct sk_buff *msg;
8013
58050fce 8014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 8015 if (!msg)
8016 return;
8017
8018 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8019 nlmsg_free(msg);
8020 return;
8021 }
8022
8023 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8024 nl80211_scan_mcgrp.id, GFP_KERNEL);
8025}
8026
73d54c9e
LR		 8027/*
8028 * This can happen on global regulatory changes or device specific settings
8029 * based on custom world regulatory domains.
8030 */
8031void nl80211_send_reg_change_event(struct regulatory_request *request)
8032{
8033 struct sk_buff *msg;
8034 void *hdr;
8035
fd2120ca 8036 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 8037 if (!msg)
8038 return;
8039
8040 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8041 if (!hdr) {
8042 nlmsg_free(msg);
8043 return;
8044 }
8045
8046 /* Userspace can always count this one always being set */
9360ffd1
DM		 8047 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8048 goto nla_put_failure;
8049
8050 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8051 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8052 NL80211_REGDOM_TYPE_WORLD))
8053 goto nla_put_failure;
8054 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8055 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8056 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8057 goto nla_put_failure;
8058 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8059 request->intersect) {
8060 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8061 NL80211_REGDOM_TYPE_INTERSECTION))
8062 goto nla_put_failure;
8063 } else {
8064 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8065 NL80211_REGDOM_TYPE_COUNTRY) ||
8066 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8067 request->alpha2))
8068 goto nla_put_failure;
8069 }
8070
f4173766 8071 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 8072 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8073 goto nla_put_failure;
73d54c9e 8074
3b7b72ee 8075 genlmsg_end(msg, hdr);
73d54c9e 8076
bc43b28c 8077 rcu_read_lock();
463d0183 8078 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 8079 GFP_ATOMIC);
8080 rcu_read_unlock();
73d54c9e
LR		 8081
8082 return;
8083
8084nla_put_failure:
8085 genlmsg_cancel(msg, hdr);
8086 nlmsg_free(msg);
8087}
8088
6039f6d2
JM		 8089static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8090 struct net_device *netdev,
8091 const u8 *buf, size_t len,
e6d6e342 8092 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 8093{
8094 struct sk_buff *msg;
8095 void *hdr;
8096
e6d6e342 8097 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 8098 if (!msg)
8099 return;
8100
8101 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8102 if (!hdr) {
8103 nlmsg_free(msg);
8104 return;
8105 }
8106
9360ffd1
DM		 8107 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8108 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8109 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8110 goto nla_put_failure;
6039f6d2 8111
3b7b72ee 8112 genlmsg_end(msg, hdr);
6039f6d2 8113
463d0183
JB		 8114 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8115 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 8116 return;
8117
8118 nla_put_failure:
8119 genlmsg_cancel(msg, hdr);
8120 nlmsg_free(msg);
8121}
8122
8123void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8124 struct net_device *netdev, const u8 *buf,
8125 size_t len, gfp_t gfp)
6039f6d2
JM		 8126{
8127 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8128 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 8129}
8130
8131void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8132 struct net_device *netdev, const u8 *buf,
e6d6e342 8133 size_t len, gfp_t gfp)
6039f6d2 8134{
e6d6e342
JB		 8135 nl80211_send_mlme_event(rdev, netdev, buf, len,
8136 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 8137}
8138
53b46b84 8139void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8140 struct net_device *netdev, const u8 *buf,
8141 size_t len, gfp_t gfp)
6039f6d2
JM		 8142{
8143 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8144 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 8145}
8146
53b46b84
JM		 8147void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8148 struct net_device *netdev, const u8 *buf,
e6d6e342 8149 size_t len, gfp_t gfp)
6039f6d2
JM		 8150{
8151 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8152 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 8153}
8154
cf4e594e
JM		 8155void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8156 struct net_device *netdev, const u8 *buf,
8157 size_t len, gfp_t gfp)
8158{
8159 nl80211_send_mlme_event(rdev, netdev, buf, len,
8160 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8161}
8162
8163void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8164 struct net_device *netdev, const u8 *buf,
8165 size_t len, gfp_t gfp)
8166{
8167 nl80211_send_mlme_event(rdev, netdev, buf, len,
8168 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8169}
8170
1b06bb40
LR		 8171static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8172 struct net_device *netdev, int cmd,
e6d6e342 8173 const u8 *addr, gfp_t gfp)
1965c853
JM		 8174{
8175 struct sk_buff *msg;
8176 void *hdr;
8177
e6d6e342 8178 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 8179 if (!msg)
8180 return;
8181
8182 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8183 if (!hdr) {
8184 nlmsg_free(msg);
8185 return;
8186 }
8187
9360ffd1
DM		 8188 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8189 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8190 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8191 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8192 goto nla_put_failure;
1965c853 8193
3b7b72ee 8194 genlmsg_end(msg, hdr);
1965c853 8195
463d0183
JB		 8196 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8197 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8198 return;
8199
8200 nla_put_failure:
8201 genlmsg_cancel(msg, hdr);
8202 nlmsg_free(msg);
8203}
8204
8205void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8206 struct net_device *netdev, const u8 *addr,
8207 gfp_t gfp)
1965c853
JM		 8208{
8209 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8210 addr, gfp);
1965c853
JM		 8211}
8212
8213void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8214 struct net_device *netdev, const u8 *addr,
8215 gfp_t gfp)
1965c853 8216{
e6d6e342
JB		 8217 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8218 addr, gfp);
1965c853
JM		 8219}
8220
b23aa676
SO		 8221void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8222 struct net_device *netdev, const u8 *bssid,
8223 const u8 *req_ie, size_t req_ie_len,
8224 const u8 *resp_ie, size_t resp_ie_len,
8225 u16 status, gfp_t gfp)
8226{
8227 struct sk_buff *msg;
8228 void *hdr;
8229
58050fce 8230 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8231 if (!msg)
8232 return;
8233
8234 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8235 if (!hdr) {
8236 nlmsg_free(msg);
8237 return;
8238 }
8239
9360ffd1
DM		 8240 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8241 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8242 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8243 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8244 (req_ie &&
8245 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8246 (resp_ie &&
8247 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8248 goto nla_put_failure;
b23aa676 8249
3b7b72ee 8250 genlmsg_end(msg, hdr);
b23aa676 8251
463d0183
JB		 8252 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8253 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8254 return;
8255
8256 nla_put_failure:
8257 genlmsg_cancel(msg, hdr);
8258 nlmsg_free(msg);
8259
8260}
8261
8262void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8263 struct net_device *netdev, const u8 *bssid,
8264 const u8 *req_ie, size_t req_ie_len,
8265 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8266{
8267 struct sk_buff *msg;
8268 void *hdr;
8269
58050fce 8270 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8271 if (!msg)
8272 return;
8273
8274 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8275 if (!hdr) {
8276 nlmsg_free(msg);
8277 return;
8278 }
8279
9360ffd1
DM		 8280 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8281 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8282 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8283 (req_ie &&
8284 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8285 (resp_ie &&
8286 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8287 goto nla_put_failure;
b23aa676 8288
3b7b72ee 8289 genlmsg_end(msg, hdr);
b23aa676 8290
463d0183
JB		 8291 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8292 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8293 return;
8294
8295 nla_put_failure:
8296 genlmsg_cancel(msg, hdr);
8297 nlmsg_free(msg);
8298
8299}
8300
8301void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8302 struct net_device *netdev, u16 reason,
667503dd 8303 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8304{
8305 struct sk_buff *msg;
8306 void *hdr;
8307
58050fce 8308 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8309 if (!msg)
8310 return;
8311
8312 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8313 if (!hdr) {
8314 nlmsg_free(msg);
8315 return;
8316 }
8317
9360ffd1
DM		 8318 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8319 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8320 (from_ap && reason &&
8321 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8322 (from_ap &&
8323 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8324 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8325 goto nla_put_failure;
b23aa676 8326
3b7b72ee 8327 genlmsg_end(msg, hdr);
b23aa676 8328
463d0183
JB		 8329 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8330 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8331 return;
8332
8333 nla_put_failure:
8334 genlmsg_cancel(msg, hdr);
8335 nlmsg_free(msg);
8336
8337}
8338
04a773ad
JB		 8339void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8340 struct net_device *netdev, const u8 *bssid,
8341 gfp_t gfp)
8342{
8343 struct sk_buff *msg;
8344 void *hdr;
8345
fd2120ca 8346 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 8347 if (!msg)
8348 return;
8349
8350 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8351 if (!hdr) {
8352 nlmsg_free(msg);
8353 return;
8354 }
8355
9360ffd1
DM		 8356 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8357 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8358 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8359 goto nla_put_failure;
04a773ad 8360
3b7b72ee 8361 genlmsg_end(msg, hdr);
04a773ad 8362
463d0183
JB		 8363 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8364 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 8365 return;
8366
8367 nla_put_failure:
8368 genlmsg_cancel(msg, hdr);
8369 nlmsg_free(msg);
8370}
8371
c93b5e71
JC		 8372void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8373 struct net_device *netdev,
8374 const u8 *macaddr, const u8* ie, u8 ie_len,
8375 gfp_t gfp)
8376{
8377 struct sk_buff *msg;
8378 void *hdr;
8379
8380 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8381 if (!msg)
8382 return;
8383
8384 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8385 if (!hdr) {
8386 nlmsg_free(msg);
8387 return;
8388 }
8389
9360ffd1
DM		 8390 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8391 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8392 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8393 (ie_len && ie &&
8394 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8395 goto nla_put_failure;
c93b5e71 8396
3b7b72ee 8397 genlmsg_end(msg, hdr);
c93b5e71
JC		 8398
8399 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8400 nl80211_mlme_mcgrp.id, gfp);
8401 return;
8402
8403 nla_put_failure:
8404 genlmsg_cancel(msg, hdr);
8405 nlmsg_free(msg);
8406}
8407
a3b8b056
JM		 8408void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8409 struct net_device *netdev, const u8 *addr,
8410 enum nl80211_key_type key_type, int key_id,
e6d6e342 8411 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 8412{
8413 struct sk_buff *msg;
8414 void *hdr;
8415
e6d6e342 8416 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 8417 if (!msg)
8418 return;
8419
8420 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8421 if (!hdr) {
8422 nlmsg_free(msg);
8423 return;
8424 }
8425
9360ffd1
DM		 8426 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8427 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8428 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8429 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8430 (key_id != -1 &&
8431 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8432 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8433 goto nla_put_failure;
a3b8b056 8434
3b7b72ee 8435 genlmsg_end(msg, hdr);
a3b8b056 8436
463d0183
JB		 8437 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8438 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 8439 return;
8440
8441 nla_put_failure:
8442 genlmsg_cancel(msg, hdr);
8443 nlmsg_free(msg);
8444}
8445
6bad8766
LR		 8446void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8447 struct ieee80211_channel *channel_before,
8448 struct ieee80211_channel *channel_after)
8449{
8450 struct sk_buff *msg;
8451 void *hdr;
8452 struct nlattr *nl_freq;
8453
fd2120ca 8454 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 8455 if (!msg)
8456 return;
8457
8458 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8459 if (!hdr) {
8460 nlmsg_free(msg);
8461 return;
8462 }
8463
8464 /*
8465 * Since we are applying the beacon hint to a wiphy we know its
8466 * wiphy_idx is valid
8467 */
9360ffd1
DM		 8468 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8469 goto nla_put_failure;
6bad8766
LR		 8470
8471 /* Before */
8472 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8473 if (!nl_freq)
8474 goto nla_put_failure;
8475 if (nl80211_msg_put_channel(msg, channel_before))
8476 goto nla_put_failure;
8477 nla_nest_end(msg, nl_freq);
8478
8479 /* After */
8480 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8481 if (!nl_freq)
8482 goto nla_put_failure;
8483 if (nl80211_msg_put_channel(msg, channel_after))
8484 goto nla_put_failure;
8485 nla_nest_end(msg, nl_freq);
8486
3b7b72ee 8487 genlmsg_end(msg, hdr);
6bad8766 8488
463d0183
JB		 8489 rcu_read_lock();
8490 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8491 GFP_ATOMIC);
8492 rcu_read_unlock();
6bad8766
LR		 8493
8494 return;
8495
8496nla_put_failure:
8497 genlmsg_cancel(msg, hdr);
8498 nlmsg_free(msg);
8499}
8500
9588bbd5
JM		 8501static void nl80211_send_remain_on_chan_event(
8502 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 8503 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8504 struct ieee80211_channel *chan,
9588bbd5
JM		 8505 unsigned int duration, gfp_t gfp)
8506{
8507 struct sk_buff *msg;
8508 void *hdr;
8509
8510 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8511 if (!msg)
8512 return;
8513
8514 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8515 if (!hdr) {
8516 nlmsg_free(msg);
8517 return;
8518 }
8519
9360ffd1 8520 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8521 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8522 wdev->netdev->ifindex)) ||
00f53350 8523 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 8524 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 8525 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
8526 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 8527 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8528 goto nla_put_failure;
9588bbd5 8529
9360ffd1
DM		 8530 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8531 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8532 goto nla_put_failure;
9588bbd5 8533
3b7b72ee 8534 genlmsg_end(msg, hdr);
9588bbd5
JM		 8535
8536 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8537 nl80211_mlme_mcgrp.id, gfp);
8538 return;
8539
8540 nla_put_failure:
8541 genlmsg_cancel(msg, hdr);
8542 nlmsg_free(msg);
8543}
8544
8545void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 8546 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8547 struct ieee80211_channel *chan,
9588bbd5
JM		 8548 unsigned int duration, gfp_t gfp)
8549{
8550 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 8551 rdev, wdev, cookie, chan,
42d97a59 8552 duration, gfp);
9588bbd5
JM		 8553}
8554
8555void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 8556 struct cfg80211_registered_device *rdev,
8557 struct wireless_dev *wdev,
42d97a59 8558 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9588bbd5
JM		 8559{
8560 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 8561 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5
JM		 8562}
8563
98b62183
JB		 8564void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8565 struct net_device *dev, const u8 *mac_addr,
8566 struct station_info *sinfo, gfp_t gfp)
8567{
8568 struct sk_buff *msg;
8569
58050fce 8570 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 8571 if (!msg)
8572 return;
8573
66266b3a
JL		 8574 if (nl80211_send_station(msg, 0, 0, 0,
8575 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8576 nlmsg_free(msg);
8577 return;
8578 }
8579
8580 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8581 nl80211_mlme_mcgrp.id, gfp);
8582}
8583
ec15e68b
JM		 8584void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8585 struct net_device *dev, const u8 *mac_addr,
8586 gfp_t gfp)
8587{
8588 struct sk_buff *msg;
8589 void *hdr;
8590
58050fce 8591 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 8592 if (!msg)
8593 return;
8594
8595 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8596 if (!hdr) {
8597 nlmsg_free(msg);
8598 return;
8599 }
8600
9360ffd1
DM		 8601 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8602 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8603 goto nla_put_failure;
ec15e68b 8604
3b7b72ee 8605 genlmsg_end(msg, hdr);
ec15e68b
JM		 8606
8607 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8608 nl80211_mlme_mcgrp.id, gfp);
8609 return;
8610
8611 nla_put_failure:
8612 genlmsg_cancel(msg, hdr);
8613 nlmsg_free(msg);
8614}
8615
ed44a951
PP		 8616void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8617 struct net_device *dev, const u8 *mac_addr,
8618 enum nl80211_connect_failed_reason reason,
8619 gfp_t gfp)
8620{
8621 struct sk_buff *msg;
8622 void *hdr;
8623
8624 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8625 if (!msg)
8626 return;
8627
8628 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8629 if (!hdr) {
8630 nlmsg_free(msg);
8631 return;
8632 }
8633
8634 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8635 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8636 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8637 goto nla_put_failure;
8638
8639 genlmsg_end(msg, hdr);
8640
8641 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8642 nl80211_mlme_mcgrp.id, gfp);
8643 return;
8644
8645 nla_put_failure:
8646 genlmsg_cancel(msg, hdr);
8647 nlmsg_free(msg);
8648}
8649
b92ab5d8
JB		 8650static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8651 const u8 *addr, gfp_t gfp)
28946da7
JB		 8652{
8653 struct wireless_dev *wdev = dev->ieee80211_ptr;
8654 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8655 struct sk_buff *msg;
8656 void *hdr;
8657 int err;
15e47304 8658 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 8659
15e47304 8660 if (!nlportid)
28946da7
JB		 8661 return false;
8662
8663 msg = nlmsg_new(100, gfp);
8664 if (!msg)
8665 return true;
8666
b92ab5d8 8667 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8668 if (!hdr) {
8669 nlmsg_free(msg);
8670 return true;
8671 }
8672
9360ffd1
DM		 8673 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8674 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8675 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8676 goto nla_put_failure;
28946da7
JB		 8677
8678 err = genlmsg_end(msg, hdr);
8679 if (err < 0) {
8680 nlmsg_free(msg);
8681 return true;
8682 }
8683
15e47304 8684 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 8685 return true;
8686
8687 nla_put_failure:
8688 genlmsg_cancel(msg, hdr);
8689 nlmsg_free(msg);
8690 return true;
8691}
8692
b92ab5d8
JB		 8693bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8694{
8695 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8696 addr, gfp);
8697}
8698
8699bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8700 const u8 *addr, gfp_t gfp)
8701{
8702 return __nl80211_unexpected_frame(dev,
8703 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8704 addr, gfp);
8705}
8706
2e161f78 8707int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 8708 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 8709 int freq, int sig_dbm,
8710 const u8 *buf, size_t len, gfp_t gfp)
026331c4 8711{
71bbc994 8712 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8713 struct sk_buff *msg;
8714 void *hdr;
026331c4
JM		 8715
8716 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8717 if (!msg)
8718 return -ENOMEM;
8719
2e161f78 8720 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8721 if (!hdr) {
8722 nlmsg_free(msg);
8723 return -ENOMEM;
8724 }
8725
9360ffd1 8726 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8727 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8728 netdev->ifindex)) ||
9360ffd1
DM		 8729 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8730 (sig_dbm &&
8731 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8732 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8733 goto nla_put_failure;
026331c4 8734
3b7b72ee 8735 genlmsg_end(msg, hdr);
026331c4 8736
15e47304 8737 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 8738
8739 nla_put_failure:
8740 genlmsg_cancel(msg, hdr);
8741 nlmsg_free(msg);
8742 return -ENOBUFS;
8743}
8744
2e161f78 8745void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 8746 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 8747 const u8 *buf, size_t len, bool ack,
8748 gfp_t gfp)
026331c4 8749{
71bbc994 8750 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8751 struct sk_buff *msg;
8752 void *hdr;
8753
8754 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8755 if (!msg)
8756 return;
8757
2e161f78 8758 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8759 if (!hdr) {
8760 nlmsg_free(msg);
8761 return;
8762 }
8763
9360ffd1 8764 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8765 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8766 netdev->ifindex)) ||
9360ffd1
DM		 8767 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8768 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8769 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8770 goto nla_put_failure;
026331c4 8771
3b7b72ee 8772 genlmsg_end(msg, hdr);
026331c4
JM		 8773
8774 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8775 return;
8776
8777 nla_put_failure:
8778 genlmsg_cancel(msg, hdr);
8779 nlmsg_free(msg);
8780}
8781
d6dc1a38
JO		 8782void
8783nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8784 struct net_device *netdev,
8785 enum nl80211_cqm_rssi_threshold_event rssi_event,
8786 gfp_t gfp)
8787{
8788 struct sk_buff *msg;
8789 struct nlattr *pinfoattr;
8790 void *hdr;
8791
58050fce 8792 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 8793 if (!msg)
8794 return;
8795
8796 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8797 if (!hdr) {
8798 nlmsg_free(msg);
8799 return;
8800 }
8801
9360ffd1
DM		 8802 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8803 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8804 goto nla_put_failure;
d6dc1a38
JO		 8805
8806 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8807 if (!pinfoattr)
8808 goto nla_put_failure;
8809
9360ffd1
DM		 8810 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8811 rssi_event))
8812 goto nla_put_failure;
d6dc1a38
JO		 8813
8814 nla_nest_end(msg, pinfoattr);
8815
3b7b72ee 8816 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8817
8818 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8819 nl80211_mlme_mcgrp.id, gfp);
8820 return;
8821
8822 nla_put_failure:
8823 genlmsg_cancel(msg, hdr);
8824 nlmsg_free(msg);
8825}
8826
e5497d76
JB		 8827void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8828 struct net_device *netdev, const u8 *bssid,
8829 const u8 *replay_ctr, gfp_t gfp)
8830{
8831 struct sk_buff *msg;
8832 struct nlattr *rekey_attr;
8833 void *hdr;
8834
58050fce 8835 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 8836 if (!msg)
8837 return;
8838
8839 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8840 if (!hdr) {
8841 nlmsg_free(msg);
8842 return;
8843 }
8844
9360ffd1
DM		 8845 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8846 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8847 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8848 goto nla_put_failure;
e5497d76
JB		 8849
8850 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8851 if (!rekey_attr)
8852 goto nla_put_failure;
8853
9360ffd1
DM		 8854 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8855 NL80211_REPLAY_CTR_LEN, replay_ctr))
8856 goto nla_put_failure;
e5497d76
JB		 8857
8858 nla_nest_end(msg, rekey_attr);
8859
3b7b72ee 8860 genlmsg_end(msg, hdr);
e5497d76
JB		 8861
8862 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8863 nl80211_mlme_mcgrp.id, gfp);
8864 return;
8865
8866 nla_put_failure:
8867 genlmsg_cancel(msg, hdr);
8868 nlmsg_free(msg);
8869}
8870
c9df56b4
JM		 8871void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8872 struct net_device *netdev, int index,
8873 const u8 *bssid, bool preauth, gfp_t gfp)
8874{
8875 struct sk_buff *msg;
8876 struct nlattr *attr;
8877 void *hdr;
8878
58050fce 8879 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 8880 if (!msg)
8881 return;
8882
8883 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8884 if (!hdr) {
8885 nlmsg_free(msg);
8886 return;
8887 }
8888
9360ffd1
DM		 8889 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8890 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8891 goto nla_put_failure;
c9df56b4
JM		 8892
8893 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8894 if (!attr)
8895 goto nla_put_failure;
8896
9360ffd1
DM		 8897 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8898 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8899 (preauth &&
8900 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8901 goto nla_put_failure;
c9df56b4
JM		 8902
8903 nla_nest_end(msg, attr);
8904
3b7b72ee 8905 genlmsg_end(msg, hdr);
c9df56b4
JM		 8906
8907 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8908 nl80211_mlme_mcgrp.id, gfp);
8909 return;
8910
8911 nla_put_failure:
8912 genlmsg_cancel(msg, hdr);
8913 nlmsg_free(msg);
8914}
8915
5314526b 8916void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
683b6d3b
JB		 8917 struct net_device *netdev,
8918 struct cfg80211_chan_def *chandef, gfp_t gfp)
5314526b
TP		 8919{
8920 struct sk_buff *msg;
8921 void *hdr;
8922
58050fce 8923 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 8924 if (!msg)
8925 return;
8926
8927 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8928 if (!hdr) {
8929 nlmsg_free(msg);
8930 return;
8931 }
8932
683b6d3b
JB		 8933 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8934 goto nla_put_failure;
8935
8936 if (nl80211_send_chandef(msg, chandef))
7eab0f64 8937 goto nla_put_failure;
5314526b
TP		 8938
8939 genlmsg_end(msg, hdr);
8940
8941 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8942 nl80211_mlme_mcgrp.id, gfp);
8943 return;
8944
8945 nla_put_failure:
8946 genlmsg_cancel(msg, hdr);
8947 nlmsg_free(msg);
8948}
8949
84f10708
TP		 8950void
8951nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8952 struct net_device *netdev, const u8 *peer,
8953 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8954{
8955 struct sk_buff *msg;
8956 struct nlattr *pinfoattr;
8957 void *hdr;
8958
8959 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8960 if (!msg)
8961 return;
8962
8963 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8964 if (!hdr) {
8965 nlmsg_free(msg);
8966 return;
8967 }
8968
8969 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8970 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8971 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8972 goto nla_put_failure;
8973
8974 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8975 if (!pinfoattr)
8976 goto nla_put_failure;
8977
8978 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8979 goto nla_put_failure;
8980
8981 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8982 goto nla_put_failure;
8983
8984 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8985 goto nla_put_failure;
8986
8987 nla_nest_end(msg, pinfoattr);
8988
8989 genlmsg_end(msg, hdr);
8990
8991 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8992 nl80211_mlme_mcgrp.id, gfp);
8993 return;
8994
8995 nla_put_failure:
8996 genlmsg_cancel(msg, hdr);
8997 nlmsg_free(msg);
8998}
8999
c063dbf5
JB		 9000void
9001nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9002 struct net_device *netdev, const u8 *peer,
9003 u32 num_packets, gfp_t gfp)
9004{
9005 struct sk_buff *msg;
9006 struct nlattr *pinfoattr;
9007 void *hdr;
9008
58050fce 9009 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 9010 if (!msg)
9011 return;
9012
9013 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9014 if (!hdr) {
9015 nlmsg_free(msg);
9016 return;
9017 }
9018
9360ffd1
DM		 9019 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9020 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9021 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9022 goto nla_put_failure;
c063dbf5
JB		 9023
9024 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9025 if (!pinfoattr)
9026 goto nla_put_failure;
9027
9360ffd1
DM		 9028 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9029 goto nla_put_failure;
c063dbf5
JB		 9030
9031 nla_nest_end(msg, pinfoattr);
9032
3b7b72ee 9033 genlmsg_end(msg, hdr);
c063dbf5
JB		 9034
9035 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9036 nl80211_mlme_mcgrp.id, gfp);
9037 return;
9038
9039 nla_put_failure:
9040 genlmsg_cancel(msg, hdr);
9041 nlmsg_free(msg);
9042}
9043
7f6cf311
JB		 9044void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9045 u64 cookie, bool acked, gfp_t gfp)
9046{
9047 struct wireless_dev *wdev = dev->ieee80211_ptr;
9048 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9049 struct sk_buff *msg;
9050 void *hdr;
9051 int err;
9052
4ee3e063
BL		 9053 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9054
58050fce 9055 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 9056
7f6cf311
JB		 9057 if (!msg)
9058 return;
9059
9060 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9061 if (!hdr) {
9062 nlmsg_free(msg);
9063 return;
9064 }
9065
9360ffd1
DM		 9066 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9067 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9068 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9069 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9070 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9071 goto nla_put_failure;
7f6cf311
JB		 9072
9073 err = genlmsg_end(msg, hdr);
9074 if (err < 0) {
9075 nlmsg_free(msg);
9076 return;
9077 }
9078
9079 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9080 nl80211_mlme_mcgrp.id, gfp);
9081 return;
9082
9083 nla_put_failure:
9084 genlmsg_cancel(msg, hdr);
9085 nlmsg_free(msg);
9086}
9087EXPORT_SYMBOL(cfg80211_probe_status);
9088
5e760230
JB		 9089void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9090 const u8 *frame, size_t len,
37c73b5f 9091 int freq, int sig_dbm)
5e760230
JB		 9092{
9093 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9094 struct sk_buff *msg;
9095 void *hdr;
37c73b5f 9096 struct cfg80211_beacon_registration *reg;
5e760230 9097
4ee3e063
BL		 9098 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9099
37c73b5f
BG		 9100 spin_lock_bh(&rdev->beacon_registrations_lock);
9101 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9102 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9103 if (!msg) {
9104 spin_unlock_bh(&rdev->beacon_registrations_lock);
9105 return;
9106 }
5e760230 9107
37c73b5f
BG		 9108 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9109 if (!hdr)
9110 goto nla_put_failure;
5e760230 9111
37c73b5f
BG		 9112 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9113 (freq &&
9114 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9115 (sig_dbm &&
9116 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9117 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9118 goto nla_put_failure;
5e760230 9119
37c73b5f 9120 genlmsg_end(msg, hdr);
5e760230 9121
37c73b5f
BG		 9122 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9123 }
9124 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9125 return;
9126
9127 nla_put_failure:
37c73b5f
BG		 9128 spin_unlock_bh(&rdev->beacon_registrations_lock);
9129 if (hdr)
9130 genlmsg_cancel(msg, hdr);
5e760230
JB		 9131 nlmsg_free(msg);
9132}
9133EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9134
3475b094
JM		 9135void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9136 enum nl80211_tdls_operation oper,
9137 u16 reason_code, gfp_t gfp)
9138{
9139 struct wireless_dev *wdev = dev->ieee80211_ptr;
9140 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9141 struct sk_buff *msg;
9142 void *hdr;
9143 int err;
9144
9145 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9146 reason_code);
9147
9148 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9149 if (!msg)
9150 return;
9151
9152 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9153 if (!hdr) {
9154 nlmsg_free(msg);
9155 return;
9156 }
9157
9158 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9159 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9160 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9161 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9162 (reason_code > 0 &&
9163 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9164 goto nla_put_failure;
9165
9166 err = genlmsg_end(msg, hdr);
9167 if (err < 0) {
9168 nlmsg_free(msg);
9169 return;
9170 }
9171
9172 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9173 nl80211_mlme_mcgrp.id, gfp);
9174 return;
9175
9176 nla_put_failure:
9177 genlmsg_cancel(msg, hdr);
9178 nlmsg_free(msg);
9179}
9180EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9181
026331c4
JM		 9182static int nl80211_netlink_notify(struct notifier_block * nb,
9183 unsigned long state,
9184 void *_notify)
9185{
9186 struct netlink_notify *notify = _notify;
9187 struct cfg80211_registered_device *rdev;
9188 struct wireless_dev *wdev;
37c73b5f 9189 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 9190
9191 if (state != NETLINK_URELEASE)
9192 return NOTIFY_DONE;
9193
9194 rcu_read_lock();
9195
5e760230 9196 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 9197 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 9198 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 9199
9200 spin_lock_bh(&rdev->beacon_registrations_lock);
9201 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9202 list) {
9203 if (reg->nlportid == notify->portid) {
9204 list_del(&reg->list);
9205 kfree(reg);
9206 break;
9207 }
9208 }
9209 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 9210 }
026331c4
JM		 9211
9212 rcu_read_unlock();
9213
9214 return NOTIFY_DONE;
9215}
9216
9217static struct notifier_block nl80211_netlink_notifier = {
9218 .notifier_call = nl80211_netlink_notify,
9219};
9220
55682965
JB		 9221/* initialisation/exit functions */
9222
9223int nl80211_init(void)
9224{
0d63cbb5 9225 int err;
55682965 9226
0d63cbb5
MM		 9227 err = genl_register_family_with_ops(&nl80211_fam,
9228 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 9229 if (err)
9230 return err;
9231
55682965
JB		 9232 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9233 if (err)
9234 goto err_out;
9235
2a519311
JB		 9236 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9237 if (err)
9238 goto err_out;
9239
73d54c9e
LR		 9240 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9241 if (err)
9242 goto err_out;
9243
6039f6d2
JM		 9244 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9245 if (err)
9246 goto err_out;
9247
aff89a9b
JB		 9248#ifdef CONFIG_NL80211_TESTMODE
9249 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9250 if (err)
9251 goto err_out;
9252#endif
9253
026331c4
JM		 9254 err = netlink_register_notifier(&nl80211_netlink_notifier);
9255 if (err)
9256 goto err_out;
9257
55682965
JB		 9258 return 0;
9259 err_out:
9260 genl_unregister_family(&nl80211_fam);
9261 return err;
9262}
9263
9264void nl80211_exit(void)
9265{
026331c4 9266 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 9267 genl_unregister_family(&nl80211_fam);
9268}
ubuntu-bionic-kernel mirror