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mac80211: support (partial) VHT radiotap information
[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 },
55682965
JB		 366};
367
e31b8213 368/* policy for the key attributes */
b54452b0 369static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 370 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 371 [NL80211_KEY_IDX] = { .type = NLA_U8 },
372 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 373 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 374 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
375 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 376 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 377 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
378};
379
380/* policy for the key default flags */
381static const struct nla_policy
382nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
383 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
384 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 385};
386
ff1b6e69
JB		 387/* policy for WoWLAN attributes */
388static const struct nla_policy
389nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
390 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
391 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
392 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
393 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 394 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
395 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
396 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
397 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 398};
399
e5497d76
JB		 400/* policy for GTK rekey offload attributes */
401static const struct nla_policy
402nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
403 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
404 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
405 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
406};
407
a1f1c21c
LC		 408static const struct nla_policy
409nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 410 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 411 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 412 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 413};
414
a043897a
HS		 415/* ifidx get helper */
416static int nl80211_get_ifidx(struct netlink_callback *cb)
417{
418 int res;
419
420 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
421 nl80211_fam.attrbuf, nl80211_fam.maxattr,
422 nl80211_policy);
423 if (res)
424 return res;
425
426 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
427 return -EINVAL;
428
429 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
430 if (!res)
431 return -EINVAL;
432 return res;
433}
434
67748893
JB		 435static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
436 struct netlink_callback *cb,
437 struct cfg80211_registered_device **rdev,
438 struct net_device **dev)
439{
440 int ifidx = cb->args[0];
441 int err;
442
443 if (!ifidx)
444 ifidx = nl80211_get_ifidx(cb);
445 if (ifidx < 0)
446 return ifidx;
447
448 cb->args[0] = ifidx;
449
450 rtnl_lock();
451
452 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
453 if (!*dev) {
454 err = -ENODEV;
455 goto out_rtnl;
456 }
457
458 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 459 if (IS_ERR(*rdev)) {
460 err = PTR_ERR(*rdev);
67748893
JB		 461 goto out_rtnl;
462 }
463
464 return 0;
465 out_rtnl:
466 rtnl_unlock();
467 return err;
468}
469
470static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
471{
472 cfg80211_unlock_rdev(rdev);
473 rtnl_unlock();
474}
475
f4a11bb0
JB		 476/* IE validation */
477static bool is_valid_ie_attr(const struct nlattr *attr)
478{
479 const u8 *pos;
480 int len;
481
482 if (!attr)
483 return true;
484
485 pos = nla_data(attr);
486 len = nla_len(attr);
487
488 while (len) {
489 u8 elemlen;
490
491 if (len < 2)
492 return false;
493 len -= 2;
494
495 elemlen = pos[1];
496 if (elemlen > len)
497 return false;
498
499 len -= elemlen;
500 pos += 2 + elemlen;
501 }
502
503 return true;
504}
505
55682965 506/* message building helper */
15e47304 507static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 508 int flags, u8 cmd)
509{
510 /* since there is no private header just add the generic one */
15e47304 511 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 512}
513
5dab3b8a
LR		 514static int nl80211_msg_put_channel(struct sk_buff *msg,
515 struct ieee80211_channel *chan)
516{
9360ffd1
DM		 517 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
518 chan->center_freq))
519 goto nla_put_failure;
5dab3b8a 520
9360ffd1
DM		 521 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
522 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
523 goto nla_put_failure;
524 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
525 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
526 goto nla_put_failure;
527 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
528 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
529 goto nla_put_failure;
530 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
531 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
532 goto nla_put_failure;
5dab3b8a 533
9360ffd1
DM		 534 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
535 DBM_TO_MBM(chan->max_power)))
536 goto nla_put_failure;
5dab3b8a
LR		 537
538 return 0;
539
540 nla_put_failure:
541 return -ENOBUFS;
542}
543
55682965
JB		 544/* netlink command implementations */
545
b9454e83
JB		 546struct key_parse {
547 struct key_params p;
548 int idx;
e31b8213 549 int type;
b9454e83 550 bool def, defmgmt;
dbd2fd65 551 bool def_uni, def_multi;
b9454e83
JB		 552};
553
554static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
555{
556 struct nlattr *tb[NL80211_KEY_MAX + 1];
557 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
558 nl80211_key_policy);
559 if (err)
560 return err;
561
562 k->def = !!tb[NL80211_KEY_DEFAULT];
563 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
564
dbd2fd65
JB		 565 if (k->def) {
566 k->def_uni = true;
567 k->def_multi = true;
568 }
569 if (k->defmgmt)
570 k->def_multi = true;
571
b9454e83
JB		 572 if (tb[NL80211_KEY_IDX])
573 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
574
575 if (tb[NL80211_KEY_DATA]) {
576 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
577 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
578 }
579
580 if (tb[NL80211_KEY_SEQ]) {
581 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
582 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
583 }
584
585 if (tb[NL80211_KEY_CIPHER])
586 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
587
e31b8213
JB		 588 if (tb[NL80211_KEY_TYPE]) {
589 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
590 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
591 return -EINVAL;
592 }
593
dbd2fd65
JB		 594 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
595 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 596 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
597 tb[NL80211_KEY_DEFAULT_TYPES],
598 nl80211_key_default_policy);
dbd2fd65
JB		 599 if (err)
600 return err;
601
602 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
603 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
604 }
605
b9454e83
JB		 606 return 0;
607}
608
609static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
610{
611 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
612 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
613 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
614 }
615
616 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
617 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
618 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
619 }
620
621 if (info->attrs[NL80211_ATTR_KEY_IDX])
622 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
623
624 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
625 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
626
627 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
628 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
629
dbd2fd65
JB		 630 if (k->def) {
631 k->def_uni = true;
632 k->def_multi = true;
633 }
634 if (k->defmgmt)
635 k->def_multi = true;
636
e31b8213
JB		 637 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
638 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
639 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
640 return -EINVAL;
641 }
642
dbd2fd65
JB		 643 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
644 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
645 int err = nla_parse_nested(
646 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
647 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
648 nl80211_key_default_policy);
649 if (err)
650 return err;
651
652 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
653 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
654 }
655
b9454e83
JB		 656 return 0;
657}
658
659static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
660{
661 int err;
662
663 memset(k, 0, sizeof(*k));
664 k->idx = -1;
e31b8213 665 k->type = -1;
b9454e83
JB		 666
667 if (info->attrs[NL80211_ATTR_KEY])
668 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
669 else
670 err = nl80211_parse_key_old(info, k);
671
672 if (err)
673 return err;
674
675 if (k->def && k->defmgmt)
676 return -EINVAL;
677
dbd2fd65
JB		 678 if (k->defmgmt) {
679 if (k->def_uni || !k->def_multi)
680 return -EINVAL;
681 }
682
b9454e83
JB		 683 if (k->idx != -1) {
684 if (k->defmgmt) {
685 if (k->idx < 4 || k->idx > 5)
686 return -EINVAL;
687 } else if (k->def) {
688 if (k->idx < 0 || k->idx > 3)
689 return -EINVAL;
690 } else {
691 if (k->idx < 0 || k->idx > 5)
692 return -EINVAL;
693 }
694 }
695
696 return 0;
697}
698
fffd0934
JB		 699static struct cfg80211_cached_keys *
700nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 701 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 702{
703 struct key_parse parse;
704 struct nlattr *key;
705 struct cfg80211_cached_keys *result;
706 int rem, err, def = 0;
707
708 result = kzalloc(sizeof(*result), GFP_KERNEL);
709 if (!result)
710 return ERR_PTR(-ENOMEM);
711
712 result->def = -1;
713 result->defmgmt = -1;
714
715 nla_for_each_nested(key, keys, rem) {
716 memset(&parse, 0, sizeof(parse));
717 parse.idx = -1;
718
719 err = nl80211_parse_key_new(key, &parse);
720 if (err)
721 goto error;
722 err = -EINVAL;
723 if (!parse.p.key)
724 goto error;
725 if (parse.idx < 0 || parse.idx > 4)
726 goto error;
727 if (parse.def) {
728 if (def)
729 goto error;
730 def = 1;
731 result->def = parse.idx;
dbd2fd65
JB		 732 if (!parse.def_uni || !parse.def_multi)
733 goto error;
fffd0934
JB		 734 } else if (parse.defmgmt)
735 goto error;
736 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 737 parse.idx, false, NULL);
fffd0934
JB		 738 if (err)
739 goto error;
740 result->params[parse.idx].cipher = parse.p.cipher;
741 result->params[parse.idx].key_len = parse.p.key_len;
742 result->params[parse.idx].key = result->data[parse.idx];
743 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 744
745 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
746 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
747 if (no_ht)
748 *no_ht = true;
749 }
fffd0934
JB		 750 }
751
752 return result;
753 error:
754 kfree(result);
755 return ERR_PTR(err);
756}
757
758static int nl80211_key_allowed(struct wireless_dev *wdev)
759{
760 ASSERT_WDEV_LOCK(wdev);
761
fffd0934
JB		 762 switch (wdev->iftype) {
763 case NL80211_IFTYPE_AP:
764 case NL80211_IFTYPE_AP_VLAN:
074ac8df 765 case NL80211_IFTYPE_P2P_GO:
ff973af7 766 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 767 break;
768 case NL80211_IFTYPE_ADHOC:
769 if (!wdev->current_bss)
770 return -ENOLINK;
771 break;
772 case NL80211_IFTYPE_STATION:
074ac8df 773 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 774 if (wdev->sme_state != CFG80211_SME_CONNECTED)
775 return -ENOLINK;
776 break;
777 default:
778 return -EINVAL;
779 }
780
781 return 0;
782}
783
7527a782
JB		 784static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
785{
786 struct nlattr *nl_modes = nla_nest_start(msg, attr);
787 int i;
788
789 if (!nl_modes)
790 goto nla_put_failure;
791
792 i = 0;
793 while (ifmodes) {
9360ffd1
DM		 794 if ((ifmodes & 1) && nla_put_flag(msg, i))
795 goto nla_put_failure;
7527a782
JB		 796 ifmodes >>= 1;
797 i++;
798 }
799
800 nla_nest_end(msg, nl_modes);
801 return 0;
802
803nla_put_failure:
804 return -ENOBUFS;
805}
806
807static int nl80211_put_iface_combinations(struct wiphy *wiphy,
808 struct sk_buff *msg)
809{
810 struct nlattr *nl_combis;
811 int i, j;
812
813 nl_combis = nla_nest_start(msg,
814 NL80211_ATTR_INTERFACE_COMBINATIONS);
815 if (!nl_combis)
816 goto nla_put_failure;
817
818 for (i = 0; i < wiphy->n_iface_combinations; i++) {
819 const struct ieee80211_iface_combination *c;
820 struct nlattr *nl_combi, *nl_limits;
821
822 c = &wiphy->iface_combinations[i];
823
824 nl_combi = nla_nest_start(msg, i + 1);
825 if (!nl_combi)
826 goto nla_put_failure;
827
828 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
829 if (!nl_limits)
830 goto nla_put_failure;
831
832 for (j = 0; j < c->n_limits; j++) {
833 struct nlattr *nl_limit;
834
835 nl_limit = nla_nest_start(msg, j + 1);
836 if (!nl_limit)
837 goto nla_put_failure;
9360ffd1
DM		 838 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
839 c->limits[j].max))
840 goto nla_put_failure;
7527a782
JB		 841 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
842 c->limits[j].types))
843 goto nla_put_failure;
844 nla_nest_end(msg, nl_limit);
845 }
846
847 nla_nest_end(msg, nl_limits);
848
9360ffd1
DM		 849 if (c->beacon_int_infra_match &&
850 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
851 goto nla_put_failure;
852 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
853 c->num_different_channels) ||
854 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
855 c->max_interfaces))
856 goto nla_put_failure;
7527a782
JB		 857
858 nla_nest_end(msg, nl_combi);
859 }
860
861 nla_nest_end(msg, nl_combis);
862
863 return 0;
864nla_put_failure:
865 return -ENOBUFS;
866}
867
15e47304 868static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
55682965
JB		 869 struct cfg80211_registered_device *dev)
870{
871 void *hdr;
ee688b00
JB		 872 struct nlattr *nl_bands, *nl_band;
873 struct nlattr *nl_freqs, *nl_freq;
874 struct nlattr *nl_rates, *nl_rate;
8fdc621d 875 struct nlattr *nl_cmds;
ee688b00
JB		 876 enum ieee80211_band band;
877 struct ieee80211_channel *chan;
878 struct ieee80211_rate *rate;
879 int i;
2e161f78
JB		 880 const struct ieee80211_txrx_stypes *mgmt_stypes =
881 dev->wiphy.mgmt_stypes;
55682965 882
15e47304 883 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
55682965
JB		 884 if (!hdr)
885 return -1;
886
9360ffd1
DM		 887 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
888 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
889 nla_put_u32(msg, NL80211_ATTR_GENERATION,
890 cfg80211_rdev_list_generation) ||
891 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
892 dev->wiphy.retry_short) ||
893 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
894 dev->wiphy.retry_long) ||
895 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
896 dev->wiphy.frag_threshold) ||
897 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
898 dev->wiphy.rts_threshold) ||
899 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
900 dev->wiphy.coverage_class) ||
901 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
902 dev->wiphy.max_scan_ssids) ||
903 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
904 dev->wiphy.max_sched_scan_ssids) ||
905 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
906 dev->wiphy.max_scan_ie_len) ||
907 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
908 dev->wiphy.max_sched_scan_ie_len) ||
909 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
910 dev->wiphy.max_match_sets))
911 goto nla_put_failure;
912
913 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
914 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
915 goto nla_put_failure;
916 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
917 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
918 goto nla_put_failure;
919 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
920 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
921 goto nla_put_failure;
922 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
923 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
924 goto nla_put_failure;
925 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
926 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
927 goto nla_put_failure;
928 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
929 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
930 goto nla_put_failure;
931
932 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
933 sizeof(u32) * dev->wiphy.n_cipher_suites,
934 dev->wiphy.cipher_suites))
935 goto nla_put_failure;
936
937 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
938 dev->wiphy.max_num_pmkids))
939 goto nla_put_failure;
940
941 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
942 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
943 goto nla_put_failure;
944
945 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
946 dev->wiphy.available_antennas_tx) ||
947 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
948 dev->wiphy.available_antennas_rx))
949 goto nla_put_failure;
950
951 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
952 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
953 dev->wiphy.probe_resp_offload))
954 goto nla_put_failure;
87bbbe22 955
7f531e03
BR		 956 if ((dev->wiphy.available_antennas_tx ||
957 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 958 u32 tx_ant = 0, rx_ant = 0;
959 int res;
e35e4d28 960 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
afe0cbf8 961 if (!res) {
9360ffd1
DM		 962 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
963 tx_ant) ||
964 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
965 rx_ant))
966 goto nla_put_failure;
afe0cbf8
BR		 967 }
968 }
969
7527a782
JB		 970 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
971 dev->wiphy.interface_modes))
f59ac048
LR		 972 goto nla_put_failure;
973
ee688b00
JB		 974 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
975 if (!nl_bands)
976 goto nla_put_failure;
977
978 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
979 if (!dev->wiphy.bands[band])
980 continue;
981
982 nl_band = nla_nest_start(msg, band);
983 if (!nl_band)
984 goto nla_put_failure;
985
d51626df 986 /* add HT info */
9360ffd1
DM		 987 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
988 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
989 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
990 &dev->wiphy.bands[band]->ht_cap.mcs) ||
991 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
992 dev->wiphy.bands[band]->ht_cap.cap) ||
993 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
994 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
995 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
996 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
997 goto nla_put_failure;
d51626df 998
bf0c111e
MP		 999 /* add VHT info */
1000 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1001 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1002 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1003 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1004 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1005 dev->wiphy.bands[band]->vht_cap.cap)))
1006 goto nla_put_failure;
1007
ee688b00
JB		 1008 /* add frequencies */
1009 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1010 if (!nl_freqs)
1011 goto nla_put_failure;
1012
1013 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1014 nl_freq = nla_nest_start(msg, i);
1015 if (!nl_freq)
1016 goto nla_put_failure;
1017
1018 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 1019
1020 if (nl80211_msg_put_channel(msg, chan))
1021 goto nla_put_failure;
e2f367f2 1022
ee688b00
JB		 1023 nla_nest_end(msg, nl_freq);
1024 }
1025
1026 nla_nest_end(msg, nl_freqs);
1027
1028 /* add bitrates */
1029 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1030 if (!nl_rates)
1031 goto nla_put_failure;
1032
1033 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1034 nl_rate = nla_nest_start(msg, i);
1035 if (!nl_rate)
1036 goto nla_put_failure;
1037
1038 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 1039 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1040 rate->bitrate))
1041 goto nla_put_failure;
1042 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1043 nla_put_flag(msg,
1044 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1045 goto nla_put_failure;
ee688b00
JB		 1046
1047 nla_nest_end(msg, nl_rate);
1048 }
1049
1050 nla_nest_end(msg, nl_rates);
1051
1052 nla_nest_end(msg, nl_band);
1053 }
1054 nla_nest_end(msg, nl_bands);
1055
8fdc621d
JB		 1056 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1057 if (!nl_cmds)
1058 goto nla_put_failure;
1059
1060 i = 0;
1061#define CMD(op, n) \
1062 do { \
1063 if (dev->ops->op) { \
1064 i++; \
9360ffd1
DM		 1065 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1066 goto nla_put_failure; \
8fdc621d
JB		 1067 } \
1068 } while (0)
1069
1070 CMD(add_virtual_intf, NEW_INTERFACE);
1071 CMD(change_virtual_intf, SET_INTERFACE);
1072 CMD(add_key, NEW_KEY);
8860020e 1073 CMD(start_ap, START_AP);
8fdc621d
JB		 1074 CMD(add_station, NEW_STATION);
1075 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1076 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1077 CMD(change_bss, SET_BSS);
636a5d36
JM		 1078 CMD(auth, AUTHENTICATE);
1079 CMD(assoc, ASSOCIATE);
1080 CMD(deauth, DEAUTHENTICATE);
1081 CMD(disassoc, DISASSOCIATE);
04a773ad 1082 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1083 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1084 CMD(set_pmksa, SET_PMKSA);
1085 CMD(del_pmksa, DEL_PMKSA);
1086 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1087 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1088 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1089 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1090 CMD(mgmt_tx, FRAME);
f7ca38df 1091 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1092 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1093 i++;
9360ffd1
DM		 1094 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1095 goto nla_put_failure;
463d0183 1096 }
e8c9bd5b 1097 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1098 dev->ops->join_mesh) {
aa430da4
JB		 1099 i++;
1100 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1101 goto nla_put_failure;
1102 }
e8347eba 1103 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1104 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1105 CMD(tdls_mgmt, TDLS_MGMT);
1106 CMD(tdls_oper, TDLS_OPER);
1107 }
807f8a8c
LC		 1108 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1109 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1110 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1111 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1112 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1113 i++;
9360ffd1
DM		 1114 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1115 goto nla_put_failure;
5e760230 1116 }
98104fde 1117 CMD(start_p2p_device, START_P2P_DEVICE);
f4e583c8 1118 CMD(set_mcast_rate, SET_MCAST_RATE);
8fdc621d 1119
4745fc09
KV		 1120#ifdef CONFIG_NL80211_TESTMODE
1121 CMD(testmode_cmd, TESTMODE);
1122#endif
1123
8fdc621d 1124#undef CMD
b23aa676 1125
6829c878 1126 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1127 i++;
9360ffd1
DM		 1128 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1129 goto nla_put_failure;
b23aa676
SO		 1130 }
1131
6829c878 1132 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1133 i++;
9360ffd1
DM		 1134 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1135 goto nla_put_failure;
b23aa676
SO		 1136 }
1137
8fdc621d
JB		 1138 nla_nest_end(msg, nl_cmds);
1139
7c4ef712 1140 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1141 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1142 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1143 dev->wiphy.max_remain_on_channel_duration))
1144 goto nla_put_failure;
a293911d 1145
9360ffd1
DM		 1146 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1147 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1148 goto nla_put_failure;
f7ca38df 1149
2e161f78
JB		 1150 if (mgmt_stypes) {
1151 u16 stypes;
1152 struct nlattr *nl_ftypes, *nl_ifs;
1153 enum nl80211_iftype ift;
1154
1155 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1156 if (!nl_ifs)
1157 goto nla_put_failure;
1158
1159 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1160 nl_ftypes = nla_nest_start(msg, ift);
1161 if (!nl_ftypes)
1162 goto nla_put_failure;
1163 i = 0;
1164 stypes = mgmt_stypes[ift].tx;
1165 while (stypes) {
9360ffd1
DM		 1166 if ((stypes & 1) &&
1167 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1168 (i << 4) | IEEE80211_FTYPE_MGMT))
1169 goto nla_put_failure;
2e161f78
JB		 1170 stypes >>= 1;
1171 i++;
1172 }
1173 nla_nest_end(msg, nl_ftypes);
1174 }
1175
74b70a4e
JB		 1176 nla_nest_end(msg, nl_ifs);
1177
2e161f78
JB		 1178 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1179 if (!nl_ifs)
1180 goto nla_put_failure;
1181
1182 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1183 nl_ftypes = nla_nest_start(msg, ift);
1184 if (!nl_ftypes)
1185 goto nla_put_failure;
1186 i = 0;
1187 stypes = mgmt_stypes[ift].rx;
1188 while (stypes) {
9360ffd1
DM		 1189 if ((stypes & 1) &&
1190 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1191 (i << 4) | IEEE80211_FTYPE_MGMT))
1192 goto nla_put_failure;
2e161f78
JB		 1193 stypes >>= 1;
1194 i++;
1195 }
1196 nla_nest_end(msg, nl_ftypes);
1197 }
1198 nla_nest_end(msg, nl_ifs);
1199 }
1200
dfb89c56 1201#ifdef CONFIG_PM
ff1b6e69
JB		 1202 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1203 struct nlattr *nl_wowlan;
1204
1205 nl_wowlan = nla_nest_start(msg,
1206 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1207 if (!nl_wowlan)
1208 goto nla_put_failure;
1209
9360ffd1
DM		 1210 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1211 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1212 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1213 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1214 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1215 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1216 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1217 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1218 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1219 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1220 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1221 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1222 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1223 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1224 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1225 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1226 goto nla_put_failure;
ff1b6e69
JB		 1227 if (dev->wiphy.wowlan.n_patterns) {
1228 struct nl80211_wowlan_pattern_support pat = {
1229 .max_patterns = dev->wiphy.wowlan.n_patterns,
1230 .min_pattern_len =
1231 dev->wiphy.wowlan.pattern_min_len,
1232 .max_pattern_len =
1233 dev->wiphy.wowlan.pattern_max_len,
1234 };
9360ffd1
DM		 1235 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1236 sizeof(pat), &pat))
1237 goto nla_put_failure;
ff1b6e69
JB		 1238 }
1239
1240 nla_nest_end(msg, nl_wowlan);
1241 }
dfb89c56 1242#endif
ff1b6e69 1243
7527a782
JB		 1244 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1245 dev->wiphy.software_iftypes))
1246 goto nla_put_failure;
1247
1248 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1249 goto nla_put_failure;
1250
9360ffd1
DM		 1251 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1252 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1253 dev->wiphy.ap_sme_capa))
1254 goto nla_put_failure;
562a7480 1255
9360ffd1
DM		 1256 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1257 dev->wiphy.features))
1258 goto nla_put_failure;
1f074bd8 1259
9360ffd1
DM		 1260 if (dev->wiphy.ht_capa_mod_mask &&
1261 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1262 sizeof(*dev->wiphy.ht_capa_mod_mask),
1263 dev->wiphy.ht_capa_mod_mask))
1264 goto nla_put_failure;
7e7c8926 1265
55682965
JB		 1266 return genlmsg_end(msg, hdr);
1267
1268 nla_put_failure:
bc3ed28c
TG		 1269 genlmsg_cancel(msg, hdr);
1270 return -EMSGSIZE;
55682965
JB		 1271}
1272
1273static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1274{
1275 int idx = 0;
1276 int start = cb->args[0];
1277 struct cfg80211_registered_device *dev;
1278
a1794390 1279 mutex_lock(&cfg80211_mutex);
79c97e97 1280 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1281 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1282 continue;
b4637271 1283 if (++idx <= start)
55682965 1284 continue;
15e47304 1285 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
55682965 1286 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1287 dev) < 0) {
1288 idx--;
55682965 1289 break;
b4637271 1290 }
55682965 1291 }
a1794390 1292 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1293
1294 cb->args[0] = idx;
1295
1296 return skb->len;
1297}
1298
1299static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1300{
1301 struct sk_buff *msg;
4c476991 1302 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1303
fd2120ca 1304 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1305 if (!msg)
4c476991 1306 return -ENOMEM;
55682965 1307
15e47304 1308 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
4c476991
JB		 1309 nlmsg_free(msg);
1310 return -ENOBUFS;
1311 }
55682965 1312
134e6375 1313 return genlmsg_reply(msg, info);
55682965
JB		 1314}
1315
31888487
JM		 1316static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1317 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1318 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1319 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1320 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1321 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1322};
1323
1324static int parse_txq_params(struct nlattr *tb[],
1325 struct ieee80211_txq_params *txq_params)
1326{
a3304b0a 1327 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1328 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1329 !tb[NL80211_TXQ_ATTR_AIFS])
1330 return -EINVAL;
1331
a3304b0a 1332 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1333 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1334 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1335 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1336 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1337
a3304b0a
JB		 1338 if (txq_params->ac >= NL80211_NUM_ACS)
1339 return -EINVAL;
1340
31888487
JM		 1341 return 0;
1342}
1343
f444de05
JB		 1344static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1345{
1346 /*
cc1d2806
JB		 1347 * You can only set the channel explicitly for WDS interfaces,
1348 * all others have their channel managed via their respective
1349 * "establish a connection" command (connect, join, ...)
1350 *
1351 * For AP/GO and mesh mode, the channel can be set with the
1352 * channel userspace API, but is only stored and passed to the
1353 * low-level driver when the AP starts or the mesh is joined.
1354 * This is for backward compatibility, userspace can also give
1355 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1356 *
1357 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1358 * whatever else is going on, so they have their own special
1359 * operation to set the monitor channel if possible.
f444de05
JB		 1360 */
1361 return !wdev ||
1362 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1363 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1364 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1365 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1366}
1367
683b6d3b
JB		 1368static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1369 struct genl_info *info,
1370 struct cfg80211_chan_def *chandef)
1371{
1372 struct ieee80211_sta_ht_cap *ht_cap;
3d9d1d66
JB		 1373 struct ieee80211_sta_vht_cap *vht_cap;
1374 u32 control_freq, width;
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
683b6d3b 1420 ht_cap = &rdev->wiphy.bands[chandef->chan->band]->ht_cap;
3d9d1d66 1421 vht_cap = &rdev->wiphy.bands[chandef->chan->band]->vht_cap;
683b6d3b 1422
9f5e8f6e 1423 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1424 return -EINVAL;
1425
1426 switch (chandef->width) {
1427 case NL80211_CHAN_WIDTH_20:
3d9d1d66
JB		 1428 case NL80211_CHAN_WIDTH_20_NOHT:
1429 width = 20;
683b6d3b 1430 break;
3d9d1d66
JB		 1431 case NL80211_CHAN_WIDTH_40:
1432 width = 40;
3d9d1d66
JB		 1433 break;
1434 case NL80211_CHAN_WIDTH_80:
1435 width = 80;
3d9d1d66
JB		 1436 break;
1437 case NL80211_CHAN_WIDTH_80P80:
1438 width = 80;
3d9d1d66
JB		 1439 break;
1440 case NL80211_CHAN_WIDTH_160:
1441 width = 160;
683b6d3b 1442 break;
3d9d1d66
JB		 1443 default:
1444 return -EINVAL;
683b6d3b
JB		 1445 }
1446
9f5e8f6e
JB		 1447 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1448 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1449 return -EINVAL;
1450
683b6d3b
JB		 1451 return 0;
1452}
1453
f444de05
JB		 1454static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1455 struct wireless_dev *wdev,
1456 struct genl_info *info)
1457{
683b6d3b 1458 struct cfg80211_chan_def chandef;
f444de05 1459 int result;
e8c9bd5b
JB		 1460 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1461
1462 if (wdev)
1463 iftype = wdev->iftype;
f444de05 1464
f444de05
JB		 1465 if (!nl80211_can_set_dev_channel(wdev))
1466 return -EOPNOTSUPP;
1467
683b6d3b
JB		 1468 result = nl80211_parse_chandef(rdev, info, &chandef);
1469 if (result)
1470 return result;
f444de05
JB		 1471
1472 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1473 switch (iftype) {
aa430da4
JB		 1474 case NL80211_IFTYPE_AP:
1475 case NL80211_IFTYPE_P2P_GO:
1476 if (wdev->beacon_interval) {
1477 result = -EBUSY;
1478 break;
1479 }
683b6d3b 1480 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1481 result = -EINVAL;
1482 break;
1483 }
683b6d3b 1484 wdev->preset_chandef = chandef;
aa430da4
JB		 1485 result = 0;
1486 break;
cc1d2806 1487 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1488 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1489 break;
e8c9bd5b 1490 case NL80211_IFTYPE_MONITOR:
683b6d3b 1491 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1492 break;
aa430da4 1493 default:
e8c9bd5b 1494 result = -EINVAL;
f444de05
JB		 1495 }
1496 mutex_unlock(&rdev->devlist_mtx);
1497
1498 return result;
1499}
1500
1501static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1502{
4c476991
JB		 1503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1504 struct net_device *netdev = info->user_ptr[1];
f444de05 1505
4c476991 1506 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1507}
1508
e8347eba
BJ		 1509static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1510{
43b19952
JB		 1511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1512 struct net_device *dev = info->user_ptr[1];
1513 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1514 const u8 *bssid;
e8347eba
BJ		 1515
1516 if (!info->attrs[NL80211_ATTR_MAC])
1517 return -EINVAL;
1518
43b19952
JB		 1519 if (netif_running(dev))
1520 return -EBUSY;
e8347eba 1521
43b19952
JB		 1522 if (!rdev->ops->set_wds_peer)
1523 return -EOPNOTSUPP;
e8347eba 1524
43b19952
JB		 1525 if (wdev->iftype != NL80211_IFTYPE_WDS)
1526 return -EOPNOTSUPP;
e8347eba
BJ		 1527
1528 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1529 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1530}
1531
1532
55682965
JB		 1533static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1534{
1535 struct cfg80211_registered_device *rdev;
f444de05
JB		 1536 struct net_device *netdev = NULL;
1537 struct wireless_dev *wdev;
a1e567c8 1538 int result = 0, rem_txq_params = 0;
31888487 1539 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1540 u32 changed;
1541 u8 retry_short = 0, retry_long = 0;
1542 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1543 u8 coverage_class = 0;
55682965 1544
f444de05
JB		 1545 /*
1546 * Try to find the wiphy and netdev. Normally this
1547 * function shouldn't need the netdev, but this is
1548 * done for backward compatibility -- previously
1549 * setting the channel was done per wiphy, but now
1550 * it is per netdev. Previous userland like hostapd
1551 * also passed a netdev to set_wiphy, so that it is
1552 * possible to let that go to the right netdev!
1553 */
4bbf4d56
JB		 1554 mutex_lock(&cfg80211_mutex);
1555
f444de05
JB		 1556 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1557 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1558
1559 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1560 if (netdev && netdev->ieee80211_ptr) {
1561 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1562 mutex_lock(&rdev->mtx);
1563 } else
1564 netdev = NULL;
4bbf4d56
JB		 1565 }
1566
f444de05 1567 if (!netdev) {
878d9ec7
JB		 1568 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1569 info->attrs);
f444de05
JB		 1570 if (IS_ERR(rdev)) {
1571 mutex_unlock(&cfg80211_mutex);
4c476991 1572 return PTR_ERR(rdev);
f444de05
JB		 1573 }
1574 wdev = NULL;
1575 netdev = NULL;
1576 result = 0;
1577
1578 mutex_lock(&rdev->mtx);
71fe96bf 1579 } else
f444de05 1580 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1581
1582 /*
1583 * end workaround code, by now the rdev is available
1584 * and locked, and wdev may or may not be NULL.
1585 */
4bbf4d56
JB		 1586
1587 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1588 result = cfg80211_dev_rename(
1589 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1590
1591 mutex_unlock(&cfg80211_mutex);
1592
1593 if (result)
1594 goto bad_res;
31888487
JM		 1595
1596 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1597 struct ieee80211_txq_params txq_params;
1598 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1599
1600 if (!rdev->ops->set_txq_params) {
1601 result = -EOPNOTSUPP;
1602 goto bad_res;
1603 }
1604
f70f01c2
EP		 1605 if (!netdev) {
1606 result = -EINVAL;
1607 goto bad_res;
1608 }
1609
133a3ff2
JB		 1610 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1611 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1612 result = -EINVAL;
1613 goto bad_res;
1614 }
1615
2b5f8b0b
JB		 1616 if (!netif_running(netdev)) {
1617 result = -ENETDOWN;
1618 goto bad_res;
1619 }
1620
31888487
JM		 1621 nla_for_each_nested(nl_txq_params,
1622 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1623 rem_txq_params) {
1624 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1625 nla_data(nl_txq_params),
1626 nla_len(nl_txq_params),
1627 txq_params_policy);
1628 result = parse_txq_params(tb, &txq_params);
1629 if (result)
1630 goto bad_res;
1631
e35e4d28
HG		 1632 result = rdev_set_txq_params(rdev, netdev,
1633 &txq_params);
31888487
JM		 1634 if (result)
1635 goto bad_res;
1636 }
1637 }
55682965 1638
72bdcf34 1639 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1640 result = __nl80211_set_channel(rdev,
1641 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1642 info);
72bdcf34
JM		 1643 if (result)
1644 goto bad_res;
1645 }
1646
98d2ff8b 1647 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1648 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1649 enum nl80211_tx_power_setting type;
1650 int idx, mbm = 0;
1651
c8442118
JB		 1652 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1653 txp_wdev = NULL;
1654
98d2ff8b 1655 if (!rdev->ops->set_tx_power) {
60ea385f 1656 result = -EOPNOTSUPP;
98d2ff8b
JO		 1657 goto bad_res;
1658 }
1659
1660 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1661 type = nla_get_u32(info->attrs[idx]);
1662
1663 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1664 (type != NL80211_TX_POWER_AUTOMATIC)) {
1665 result = -EINVAL;
1666 goto bad_res;
1667 }
1668
1669 if (type != NL80211_TX_POWER_AUTOMATIC) {
1670 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1671 mbm = nla_get_u32(info->attrs[idx]);
1672 }
1673
c8442118 1674 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1675 if (result)
1676 goto bad_res;
1677 }
1678
afe0cbf8
BR		 1679 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1680 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1681 u32 tx_ant, rx_ant;
7f531e03
BR		 1682 if ((!rdev->wiphy.available_antennas_tx &&
1683 !rdev->wiphy.available_antennas_rx) ||
1684 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1685 result = -EOPNOTSUPP;
1686 goto bad_res;
1687 }
1688
1689 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1690 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1691
a7ffac95 1692 /* reject antenna configurations which don't match the
7f531e03
BR		 1693 * available antenna masks, except for the "all" mask */
1694 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1695 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1696 result = -EINVAL;
1697 goto bad_res;
1698 }
1699
7f531e03
BR		 1700 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1701 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1702
e35e4d28 1703 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1704 if (result)
1705 goto bad_res;
1706 }
1707
b9a5f8ca
JM		 1708 changed = 0;
1709
1710 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1711 retry_short = nla_get_u8(
1712 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1713 if (retry_short == 0) {
1714 result = -EINVAL;
1715 goto bad_res;
1716 }
1717 changed |= WIPHY_PARAM_RETRY_SHORT;
1718 }
1719
1720 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1721 retry_long = nla_get_u8(
1722 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1723 if (retry_long == 0) {
1724 result = -EINVAL;
1725 goto bad_res;
1726 }
1727 changed |= WIPHY_PARAM_RETRY_LONG;
1728 }
1729
1730 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1731 frag_threshold = nla_get_u32(
1732 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1733 if (frag_threshold < 256) {
1734 result = -EINVAL;
1735 goto bad_res;
1736 }
1737 if (frag_threshold != (u32) -1) {
1738 /*
1739 * Fragments (apart from the last one) are required to
1740 * have even length. Make the fragmentation code
1741 * simpler by stripping LSB should someone try to use
1742 * odd threshold value.
1743 */
1744 frag_threshold &= ~0x1;
1745 }
1746 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1747 }
1748
1749 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1750 rts_threshold = nla_get_u32(
1751 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1752 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1753 }
1754
81077e82
LT		 1755 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1756 coverage_class = nla_get_u8(
1757 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1758 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1759 }
1760
b9a5f8ca
JM		 1761 if (changed) {
1762 u8 old_retry_short, old_retry_long;
1763 u32 old_frag_threshold, old_rts_threshold;
81077e82 1764 u8 old_coverage_class;
b9a5f8ca
JM		 1765
1766 if (!rdev->ops->set_wiphy_params) {
1767 result = -EOPNOTSUPP;
1768 goto bad_res;
1769 }
1770
1771 old_retry_short = rdev->wiphy.retry_short;
1772 old_retry_long = rdev->wiphy.retry_long;
1773 old_frag_threshold = rdev->wiphy.frag_threshold;
1774 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1775 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1776
1777 if (changed & WIPHY_PARAM_RETRY_SHORT)
1778 rdev->wiphy.retry_short = retry_short;
1779 if (changed & WIPHY_PARAM_RETRY_LONG)
1780 rdev->wiphy.retry_long = retry_long;
1781 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1782 rdev->wiphy.frag_threshold = frag_threshold;
1783 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1784 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1785 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1786 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 1787
e35e4d28 1788 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 1789 if (result) {
1790 rdev->wiphy.retry_short = old_retry_short;
1791 rdev->wiphy.retry_long = old_retry_long;
1792 rdev->wiphy.frag_threshold = old_frag_threshold;
1793 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1794 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1795 }
1796 }
72bdcf34 1797
306d6112 1798 bad_res:
4bbf4d56 1799 mutex_unlock(&rdev->mtx);
f444de05
JB		 1800 if (netdev)
1801 dev_put(netdev);
55682965
JB		 1802 return result;
1803}
1804
71bbc994
JB		 1805static inline u64 wdev_id(struct wireless_dev *wdev)
1806{
1807 return (u64)wdev->identifier |
1808 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1809}
55682965 1810
683b6d3b
JB		 1811static int nl80211_send_chandef(struct sk_buff *msg,
1812 struct cfg80211_chan_def *chandef)
1813{
9f5e8f6e 1814 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 1815
683b6d3b
JB		 1816 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1817 chandef->chan->center_freq))
1818 return -ENOBUFS;
3d9d1d66
JB		 1819 switch (chandef->width) {
1820 case NL80211_CHAN_WIDTH_20_NOHT:
1821 case NL80211_CHAN_WIDTH_20:
1822 case NL80211_CHAN_WIDTH_40:
1823 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1824 cfg80211_get_chandef_type(chandef)))
1825 return -ENOBUFS;
1826 break;
1827 default:
1828 break;
1829 }
1830 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1831 return -ENOBUFS;
1832 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1833 return -ENOBUFS;
1834 if (chandef->center_freq2 &&
1835 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 1836 return -ENOBUFS;
1837 return 0;
1838}
1839
15e47304 1840static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 1841 struct cfg80211_registered_device *rdev,
72fb2abc 1842 struct wireless_dev *wdev)
55682965 1843{
72fb2abc 1844 struct net_device *dev = wdev->netdev;
55682965
JB		 1845 void *hdr;
1846
15e47304 1847 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 1848 if (!hdr)
1849 return -1;
1850
72fb2abc
JB		 1851 if (dev &&
1852 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 1853 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 1854 goto nla_put_failure;
1855
1856 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1857 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 1858 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 1859 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 1860 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1861 rdev->devlist_generation ^
1862 (cfg80211_rdev_list_generation << 2)))
1863 goto nla_put_failure;
f5ea9120 1864
5b7ccaf3 1865 if (rdev->ops->get_channel) {
683b6d3b
JB		 1866 int ret;
1867 struct cfg80211_chan_def chandef;
1868
1869 ret = rdev_get_channel(rdev, wdev, &chandef);
1870 if (ret == 0) {
1871 if (nl80211_send_chandef(msg, &chandef))
1872 goto nla_put_failure;
1873 }
d91df0e3
PF		 1874 }
1875
b84e7a05
AQ		 1876 if (wdev->ssid_len) {
1877 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1878 goto nla_put_failure;
1879 }
1880
55682965
JB		 1881 return genlmsg_end(msg, hdr);
1882
1883 nla_put_failure:
bc3ed28c
TG		 1884 genlmsg_cancel(msg, hdr);
1885 return -EMSGSIZE;
55682965
JB		 1886}
1887
1888static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1889{
1890 int wp_idx = 0;
1891 int if_idx = 0;
1892 int wp_start = cb->args[0];
1893 int if_start = cb->args[1];
f5ea9120 1894 struct cfg80211_registered_device *rdev;
55682965
JB		 1895 struct wireless_dev *wdev;
1896
a1794390 1897 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1898 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1899 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1900 continue;
bba95fef
JB		 1901 if (wp_idx < wp_start) {
1902 wp_idx++;
55682965 1903 continue;
bba95fef 1904 }
55682965
JB		 1905 if_idx = 0;
1906
f5ea9120 1907 mutex_lock(&rdev->devlist_mtx);
89a54e48 1908 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1909 if (if_idx < if_start) {
1910 if_idx++;
55682965 1911 continue;
bba95fef 1912 }
15e47304 1913 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 1914 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 1915 rdev, wdev) < 0) {
f5ea9120 1916 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1917 goto out;
1918 }
1919 if_idx++;
55682965 1920 }
f5ea9120 1921 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1922
1923 wp_idx++;
55682965 1924 }
bba95fef 1925 out:
a1794390 1926 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1927
1928 cb->args[0] = wp_idx;
1929 cb->args[1] = if_idx;
1930
1931 return skb->len;
1932}
1933
1934static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1935{
1936 struct sk_buff *msg;
4c476991 1937 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 1938 struct wireless_dev *wdev = info->user_ptr[1];
55682965 1939
fd2120ca 1940 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1941 if (!msg)
4c476991 1942 return -ENOMEM;
55682965 1943
15e47304 1944 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 1945 dev, wdev) < 0) {
4c476991
JB		 1946 nlmsg_free(msg);
1947 return -ENOBUFS;
1948 }
55682965 1949
134e6375 1950 return genlmsg_reply(msg, info);
55682965
JB		 1951}
1952
66f7ac50
MW		 1953static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1954 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1955 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1956 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1957 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1958 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1959};
1960
1961static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1962{
1963 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1964 int flag;
1965
1966 *mntrflags = 0;
1967
1968 if (!nla)
1969 return -EINVAL;
1970
1971 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1972 nla, mntr_flags_policy))
1973 return -EINVAL;
1974
1975 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1976 if (flags[flag])
1977 *mntrflags |= (1<<flag);
1978
1979 return 0;
1980}
1981
9bc383de 1982static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1983 struct net_device *netdev, u8 use_4addr,
1984 enum nl80211_iftype iftype)
9bc383de 1985{
ad4bb6f8 1986 if (!use_4addr) {
f350a0a8 1987 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1988 return -EBUSY;
9bc383de 1989 return 0;
ad4bb6f8 1990 }
9bc383de
JB		 1991
1992 switch (iftype) {
1993 case NL80211_IFTYPE_AP_VLAN:
1994 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1995 return 0;
1996 break;
1997 case NL80211_IFTYPE_STATION:
1998 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1999 return 0;
2000 break;
2001 default:
2002 break;
2003 }
2004
2005 return -EOPNOTSUPP;
2006}
2007
55682965
JB		 2008static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2009{
4c476991 2010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2011 struct vif_params params;
e36d56b6 2012 int err;
04a773ad 2013 enum nl80211_iftype otype, ntype;
4c476991 2014 struct net_device *dev = info->user_ptr[1];
92ffe055 2015 u32 _flags, *flags = NULL;
ac7f9cfa 2016 bool change = false;
55682965 2017
2ec600d6
LCC		 2018 memset(&params, 0, sizeof(params));
2019
04a773ad 2020 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2021
723b038d 2022 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2023 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2024 if (otype != ntype)
ac7f9cfa 2025 change = true;
4c476991
JB		 2026 if (ntype > NL80211_IFTYPE_MAX)
2027 return -EINVAL;
723b038d
JB		 2028 }
2029
92ffe055 2030 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2031 struct wireless_dev *wdev = dev->ieee80211_ptr;
2032
4c476991
JB		 2033 if (ntype != NL80211_IFTYPE_MESH_POINT)
2034 return -EINVAL;
29cbe68c
JB		 2035 if (netif_running(dev))
2036 return -EBUSY;
2037
2038 wdev_lock(wdev);
2039 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2040 IEEE80211_MAX_MESH_ID_LEN);
2041 wdev->mesh_id_up_len =
2042 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2043 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2044 wdev->mesh_id_up_len);
2045 wdev_unlock(wdev);
2ec600d6
LCC		 2046 }
2047
8b787643
FF		 2048 if (info->attrs[NL80211_ATTR_4ADDR]) {
2049 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2050 change = true;
ad4bb6f8 2051 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2052 if (err)
4c476991 2053 return err;
8b787643
FF		 2054 } else {
2055 params.use_4addr = -1;
2056 }
2057
92ffe055 2058 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2059 if (ntype != NL80211_IFTYPE_MONITOR)
2060 return -EINVAL;
92ffe055
JB		 2061 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2062 &_flags);
ac7f9cfa 2063 if (err)
4c476991 2064 return err;
ac7f9cfa
JB		 2065
2066 flags = &_flags;
2067 change = true;
92ffe055 2068 }
3b85875a 2069
ac7f9cfa 2070 if (change)
3d54d255 2071 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2072 else
2073 err = 0;
60719ffd 2074
9bc383de
JB		 2075 if (!err && params.use_4addr != -1)
2076 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2077
55682965
JB		 2078 return err;
2079}
2080
2081static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2082{
4c476991 2083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2084 struct vif_params params;
84efbb84 2085 struct wireless_dev *wdev;
1c90f9d4 2086 struct sk_buff *msg;
55682965
JB		 2087 int err;
2088 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2089 u32 flags;
55682965 2090
2ec600d6
LCC		 2091 memset(&params, 0, sizeof(params));
2092
55682965
JB		 2093 if (!info->attrs[NL80211_ATTR_IFNAME])
2094 return -EINVAL;
2095
2096 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2097 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2098 if (type > NL80211_IFTYPE_MAX)
2099 return -EINVAL;
2100 }
2101
79c97e97 2102 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2103 !(rdev->wiphy.interface_modes & (1 << type)))
2104 return -EOPNOTSUPP;
55682965 2105
9bc383de 2106 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2107 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2108 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2109 if (err)
4c476991 2110 return err;
9bc383de 2111 }
8b787643 2112
1c90f9d4
JB		 2113 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2114 if (!msg)
2115 return -ENOMEM;
2116
66f7ac50
MW		 2117 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2118 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2119 &flags);
e35e4d28
HG		 2120 wdev = rdev_add_virtual_intf(rdev,
2121 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2122 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2123 if (IS_ERR(wdev)) {
2124 nlmsg_free(msg);
84efbb84 2125 return PTR_ERR(wdev);
1c90f9d4 2126 }
2ec600d6 2127
98104fde
JB		 2128 switch (type) {
2129 case NL80211_IFTYPE_MESH_POINT:
2130 if (!info->attrs[NL80211_ATTR_MESH_ID])
2131 break;
29cbe68c
JB		 2132 wdev_lock(wdev);
2133 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2134 IEEE80211_MAX_MESH_ID_LEN);
2135 wdev->mesh_id_up_len =
2136 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2137 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2138 wdev->mesh_id_up_len);
2139 wdev_unlock(wdev);
98104fde
JB		 2140 break;
2141 case NL80211_IFTYPE_P2P_DEVICE:
2142 /*
2143 * P2P Device doesn't have a netdev, so doesn't go
2144 * through the netdev notifier and must be added here
2145 */
2146 mutex_init(&wdev->mtx);
2147 INIT_LIST_HEAD(&wdev->event_list);
2148 spin_lock_init(&wdev->event_lock);
2149 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2150 spin_lock_init(&wdev->mgmt_registrations_lock);
2151
2152 mutex_lock(&rdev->devlist_mtx);
2153 wdev->identifier = ++rdev->wdev_id;
2154 list_add_rcu(&wdev->list, &rdev->wdev_list);
2155 rdev->devlist_generation++;
2156 mutex_unlock(&rdev->devlist_mtx);
2157 break;
2158 default:
2159 break;
29cbe68c
JB		 2160 }
2161
15e47304 2162 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2163 rdev, wdev) < 0) {
2164 nlmsg_free(msg);
2165 return -ENOBUFS;
2166 }
2167
2168 return genlmsg_reply(msg, info);
55682965
JB		 2169}
2170
2171static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2172{
4c476991 2173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2174 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2175
4c476991
JB		 2176 if (!rdev->ops->del_virtual_intf)
2177 return -EOPNOTSUPP;
55682965 2178
84efbb84
JB		 2179 /*
2180 * If we remove a wireless device without a netdev then clear
2181 * user_ptr[1] so that nl80211_post_doit won't dereference it
2182 * to check if it needs to do dev_put(). Otherwise it crashes
2183 * since the wdev has been freed, unlike with a netdev where
2184 * we need the dev_put() for the netdev to really be freed.
2185 */
2186 if (!wdev->netdev)
2187 info->user_ptr[1] = NULL;
2188
e35e4d28 2189 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2190}
2191
1d9d9213
SW		 2192static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2193{
2194 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2195 struct net_device *dev = info->user_ptr[1];
2196 u16 noack_map;
2197
2198 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2199 return -EINVAL;
2200
2201 if (!rdev->ops->set_noack_map)
2202 return -EOPNOTSUPP;
2203
2204 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2205
e35e4d28 2206 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2207}
2208
41ade00f
JB		 2209struct get_key_cookie {
2210 struct sk_buff *msg;
2211 int error;
b9454e83 2212 int idx;
41ade00f
JB		 2213};
2214
2215static void get_key_callback(void *c, struct key_params *params)
2216{
b9454e83 2217 struct nlattr *key;
41ade00f
JB		 2218 struct get_key_cookie *cookie = c;
2219
9360ffd1
DM		 2220 if ((params->key &&
2221 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2222 params->key_len, params->key)) ||
2223 (params->seq &&
2224 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2225 params->seq_len, params->seq)) ||
2226 (params->cipher &&
2227 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2228 params->cipher)))
2229 goto nla_put_failure;
41ade00f 2230
b9454e83
JB		 2231 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2232 if (!key)
2233 goto nla_put_failure;
2234
9360ffd1
DM		 2235 if ((params->key &&
2236 nla_put(cookie->msg, NL80211_KEY_DATA,
2237 params->key_len, params->key)) ||
2238 (params->seq &&
2239 nla_put(cookie->msg, NL80211_KEY_SEQ,
2240 params->seq_len, params->seq)) ||
2241 (params->cipher &&
2242 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2243 params->cipher)))
2244 goto nla_put_failure;
b9454e83 2245
9360ffd1
DM		 2246 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2247 goto nla_put_failure;
b9454e83
JB		 2248
2249 nla_nest_end(cookie->msg, key);
2250
41ade00f
JB		 2251 return;
2252 nla_put_failure:
2253 cookie->error = 1;
2254}
2255
2256static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2257{
4c476991 2258 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2259 int err;
4c476991 2260 struct net_device *dev = info->user_ptr[1];
41ade00f 2261 u8 key_idx = 0;
e31b8213
JB		 2262 const u8 *mac_addr = NULL;
2263 bool pairwise;
41ade00f
JB		 2264 struct get_key_cookie cookie = {
2265 .error = 0,
2266 };
2267 void *hdr;
2268 struct sk_buff *msg;
2269
2270 if (info->attrs[NL80211_ATTR_KEY_IDX])
2271 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2272
3cfcf6ac 2273 if (key_idx > 5)
41ade00f
JB		 2274 return -EINVAL;
2275
2276 if (info->attrs[NL80211_ATTR_MAC])
2277 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2278
e31b8213
JB		 2279 pairwise = !!mac_addr;
2280 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2281 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2282 if (kt >= NUM_NL80211_KEYTYPES)
2283 return -EINVAL;
2284 if (kt != NL80211_KEYTYPE_GROUP &&
2285 kt != NL80211_KEYTYPE_PAIRWISE)
2286 return -EINVAL;
2287 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2288 }
2289
4c476991
JB		 2290 if (!rdev->ops->get_key)
2291 return -EOPNOTSUPP;
41ade00f 2292
fd2120ca 2293 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2294 if (!msg)
2295 return -ENOMEM;
41ade00f 2296
15e47304 2297 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2298 NL80211_CMD_NEW_KEY);
4c476991
JB		 2299 if (IS_ERR(hdr))
2300 return PTR_ERR(hdr);
41ade00f
JB		 2301
2302 cookie.msg = msg;
b9454e83 2303 cookie.idx = key_idx;
41ade00f 2304
9360ffd1
DM		 2305 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2306 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2307 goto nla_put_failure;
2308 if (mac_addr &&
2309 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2310 goto nla_put_failure;
41ade00f 2311
e31b8213
JB		 2312 if (pairwise && mac_addr &&
2313 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2314 return -ENOENT;
2315
e35e4d28
HG		 2316 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2317 get_key_callback);
41ade00f
JB		 2318
2319 if (err)
6c95e2a2 2320 goto free_msg;
41ade00f
JB		 2321
2322 if (cookie.error)
2323 goto nla_put_failure;
2324
2325 genlmsg_end(msg, hdr);
4c476991 2326 return genlmsg_reply(msg, info);
41ade00f
JB		 2327
2328 nla_put_failure:
2329 err = -ENOBUFS;
6c95e2a2 2330 free_msg:
41ade00f 2331 nlmsg_free(msg);
41ade00f
JB		 2332 return err;
2333}
2334
2335static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2336{
4c476991 2337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2338 struct key_parse key;
41ade00f 2339 int err;
4c476991 2340 struct net_device *dev = info->user_ptr[1];
41ade00f 2341
b9454e83
JB		 2342 err = nl80211_parse_key(info, &key);
2343 if (err)
2344 return err;
41ade00f 2345
b9454e83 2346 if (key.idx < 0)
41ade00f
JB		 2347 return -EINVAL;
2348
b9454e83
JB		 2349 /* only support setting default key */
2350 if (!key.def && !key.defmgmt)
41ade00f
JB		 2351 return -EINVAL;
2352
dbd2fd65 2353 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2354
dbd2fd65
JB		 2355 if (key.def) {
2356 if (!rdev->ops->set_default_key) {
2357 err = -EOPNOTSUPP;
2358 goto out;
2359 }
41ade00f 2360
dbd2fd65
JB		 2361 err = nl80211_key_allowed(dev->ieee80211_ptr);
2362 if (err)
2363 goto out;
2364
e35e4d28 2365 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2366 key.def_uni, key.def_multi);
2367
2368 if (err)
2369 goto out;
fffd0934 2370
3d23e349 2371#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2372 dev->ieee80211_ptr->wext.default_key = key.idx;
2373#endif
2374 } else {
2375 if (key.def_uni || !key.def_multi) {
2376 err = -EINVAL;
2377 goto out;
2378 }
2379
2380 if (!rdev->ops->set_default_mgmt_key) {
2381 err = -EOPNOTSUPP;
2382 goto out;
2383 }
2384
2385 err = nl80211_key_allowed(dev->ieee80211_ptr);
2386 if (err)
2387 goto out;
2388
e35e4d28 2389 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2390 if (err)
2391 goto out;
2392
2393#ifdef CONFIG_CFG80211_WEXT
2394 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2395#endif
dbd2fd65
JB		 2396 }
2397
2398 out:
fffd0934 2399 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2400
41ade00f
JB		 2401 return err;
2402}
2403
2404static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2405{
4c476991 2406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2407 int err;
4c476991 2408 struct net_device *dev = info->user_ptr[1];
b9454e83 2409 struct key_parse key;
e31b8213 2410 const u8 *mac_addr = NULL;
41ade00f 2411
b9454e83
JB		 2412 err = nl80211_parse_key(info, &key);
2413 if (err)
2414 return err;
41ade00f 2415
b9454e83 2416 if (!key.p.key)
41ade00f
JB		 2417 return -EINVAL;
2418
41ade00f
JB		 2419 if (info->attrs[NL80211_ATTR_MAC])
2420 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2421
e31b8213
JB		 2422 if (key.type == -1) {
2423 if (mac_addr)
2424 key.type = NL80211_KEYTYPE_PAIRWISE;
2425 else
2426 key.type = NL80211_KEYTYPE_GROUP;
2427 }
2428
2429 /* for now */
2430 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2431 key.type != NL80211_KEYTYPE_GROUP)
2432 return -EINVAL;
2433
4c476991
JB		 2434 if (!rdev->ops->add_key)
2435 return -EOPNOTSUPP;
25e47c18 2436
e31b8213
JB		 2437 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2438 key.type == NL80211_KEYTYPE_PAIRWISE,
2439 mac_addr))
4c476991 2440 return -EINVAL;
41ade00f 2441
fffd0934
JB		 2442 wdev_lock(dev->ieee80211_ptr);
2443 err = nl80211_key_allowed(dev->ieee80211_ptr);
2444 if (!err)
e35e4d28
HG		 2445 err = rdev_add_key(rdev, dev, key.idx,
2446 key.type == NL80211_KEYTYPE_PAIRWISE,
2447 mac_addr, &key.p);
fffd0934 2448 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2449
41ade00f
JB		 2450 return err;
2451}
2452
2453static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2454{
4c476991 2455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2456 int err;
4c476991 2457 struct net_device *dev = info->user_ptr[1];
41ade00f 2458 u8 *mac_addr = NULL;
b9454e83 2459 struct key_parse key;
41ade00f 2460
b9454e83
JB		 2461 err = nl80211_parse_key(info, &key);
2462 if (err)
2463 return err;
41ade00f
JB		 2464
2465 if (info->attrs[NL80211_ATTR_MAC])
2466 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2467
e31b8213
JB		 2468 if (key.type == -1) {
2469 if (mac_addr)
2470 key.type = NL80211_KEYTYPE_PAIRWISE;
2471 else
2472 key.type = NL80211_KEYTYPE_GROUP;
2473 }
2474
2475 /* for now */
2476 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2477 key.type != NL80211_KEYTYPE_GROUP)
2478 return -EINVAL;
2479
4c476991
JB		 2480 if (!rdev->ops->del_key)
2481 return -EOPNOTSUPP;
41ade00f 2482
fffd0934
JB		 2483 wdev_lock(dev->ieee80211_ptr);
2484 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2485
2486 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2487 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2488 err = -ENOENT;
2489
fffd0934 2490 if (!err)
e35e4d28
HG		 2491 err = rdev_del_key(rdev, dev, key.idx,
2492 key.type == NL80211_KEYTYPE_PAIRWISE,
2493 mac_addr);
41ade00f 2494
3d23e349 2495#ifdef CONFIG_CFG80211_WEXT
08645126 2496 if (!err) {
b9454e83 2497 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2498 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2499 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2500 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2501 }
2502#endif
fffd0934 2503 wdev_unlock(dev->ieee80211_ptr);
08645126 2504
41ade00f
JB		 2505 return err;
2506}
2507
8860020e
JB		 2508static int nl80211_parse_beacon(struct genl_info *info,
2509 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2510{
8860020e 2511 bool haveinfo = false;
ed1b6cc7 2512
9946ecfb
JM		 2513 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2514 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2515 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2516 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2517 return -EINVAL;
2518
8860020e 2519 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2520
ed1b6cc7 2521 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2522 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2523 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2524 if (!bcn->head_len)
2525 return -EINVAL;
2526 haveinfo = true;
ed1b6cc7
JB		 2527 }
2528
2529 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2530 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2531 bcn->tail_len =
ed1b6cc7 2532 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2533 haveinfo = true;
ed1b6cc7
JB		 2534 }
2535
4c476991
JB		 2536 if (!haveinfo)
2537 return -EINVAL;
3b85875a 2538
9946ecfb 2539 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2540 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2541 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2542 }
2543
2544 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2545 bcn->proberesp_ies =
9946ecfb 2546 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2547 bcn->proberesp_ies_len =
9946ecfb
JM		 2548 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2549 }
2550
2551 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2552 bcn->assocresp_ies =
9946ecfb 2553 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2554 bcn->assocresp_ies_len =
9946ecfb
JM		 2555 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2556 }
2557
00f740e1 2558 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2559 bcn->probe_resp =
00f740e1 2560 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2561 bcn->probe_resp_len =
00f740e1
AN		 2562 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2563 }
2564
8860020e
JB		 2565 return 0;
2566}
2567
46c1dd0c
FF		 2568static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2569 struct cfg80211_ap_settings *params)
2570{
2571 struct wireless_dev *wdev;
2572 bool ret = false;
2573
2574 mutex_lock(&rdev->devlist_mtx);
2575
89a54e48 2576 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2577 if (wdev->iftype != NL80211_IFTYPE_AP &&
2578 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2579 continue;
2580
683b6d3b 2581 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2582 continue;
2583
683b6d3b 2584 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2585 ret = true;
2586 break;
2587 }
2588
2589 mutex_unlock(&rdev->devlist_mtx);
2590
2591 return ret;
2592}
2593
e39e5b5e
JM		 2594static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2595 enum nl80211_auth_type auth_type,
2596 enum nl80211_commands cmd)
2597{
2598 if (auth_type > NL80211_AUTHTYPE_MAX)
2599 return false;
2600
2601 switch (cmd) {
2602 case NL80211_CMD_AUTHENTICATE:
2603 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2604 auth_type == NL80211_AUTHTYPE_SAE)
2605 return false;
2606 return true;
2607 case NL80211_CMD_CONNECT:
2608 case NL80211_CMD_START_AP:
2609 /* SAE not supported yet */
2610 if (auth_type == NL80211_AUTHTYPE_SAE)
2611 return false;
2612 return true;
2613 default:
2614 return false;
2615 }
2616}
2617
8860020e
JB		 2618static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2619{
2620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2621 struct net_device *dev = info->user_ptr[1];
2622 struct wireless_dev *wdev = dev->ieee80211_ptr;
2623 struct cfg80211_ap_settings params;
2624 int err;
2625
2626 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2627 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2628 return -EOPNOTSUPP;
2629
2630 if (!rdev->ops->start_ap)
2631 return -EOPNOTSUPP;
2632
2633 if (wdev->beacon_interval)
2634 return -EALREADY;
2635
2636 memset(&params, 0, sizeof(params));
2637
2638 /* these are required for START_AP */
2639 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2640 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2641 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2642 return -EINVAL;
2643
2644 err = nl80211_parse_beacon(info, &params.beacon);
2645 if (err)
2646 return err;
2647
2648 params.beacon_interval =
2649 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2650 params.dtim_period =
2651 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2652
2653 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2654 if (err)
2655 return err;
2656
2657 /*
2658 * In theory, some of these attributes should be required here
2659 * but since they were not used when the command was originally
2660 * added, keep them optional for old user space programs to let
2661 * them continue to work with drivers that do not need the
2662 * additional information -- drivers must check!
2663 */
2664 if (info->attrs[NL80211_ATTR_SSID]) {
2665 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2666 params.ssid_len =
2667 nla_len(info->attrs[NL80211_ATTR_SSID]);
2668 if (params.ssid_len == 0 ||
2669 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2670 return -EINVAL;
2671 }
2672
2673 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2674 params.hidden_ssid = nla_get_u32(
2675 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2676 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2677 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2678 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2679 return -EINVAL;
2680 }
2681
2682 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2683
2684 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2685 params.auth_type = nla_get_u32(
2686 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 2687 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2688 NL80211_CMD_START_AP))
8860020e
JB		 2689 return -EINVAL;
2690 } else
2691 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2692
2693 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2694 NL80211_MAX_NR_CIPHER_SUITES);
2695 if (err)
2696 return err;
2697
1b658f11
VT		 2698 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2699 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2700 return -EOPNOTSUPP;
2701 params.inactivity_timeout = nla_get_u16(
2702 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2703 }
2704
aa430da4 2705 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 2706 err = nl80211_parse_chandef(rdev, info, &params.chandef);
2707 if (err)
2708 return err;
2709 } else if (wdev->preset_chandef.chan) {
2710 params.chandef = wdev->preset_chandef;
46c1dd0c 2711 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2712 return -EINVAL;
2713
683b6d3b 2714 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 2715 return -EINVAL;
2716
e4e32459 2717 mutex_lock(&rdev->devlist_mtx);
683b6d3b 2718 err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan,
e4e32459
MK		 2719 CHAN_MODE_SHARED);
2720 mutex_unlock(&rdev->devlist_mtx);
2721
2722 if (err)
2723 return err;
2724
e35e4d28 2725 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 2726 if (!err) {
683b6d3b 2727 wdev->preset_chandef = params.chandef;
8860020e 2728 wdev->beacon_interval = params.beacon_interval;
683b6d3b 2729 wdev->channel = params.chandef.chan;
06e191e2
AQ		 2730 wdev->ssid_len = params.ssid_len;
2731 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 2732 }
56d1893d 2733 return err;
ed1b6cc7
JB		 2734}
2735
8860020e
JB		 2736static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2737{
2738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2739 struct net_device *dev = info->user_ptr[1];
2740 struct wireless_dev *wdev = dev->ieee80211_ptr;
2741 struct cfg80211_beacon_data params;
2742 int err;
2743
2744 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2745 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2746 return -EOPNOTSUPP;
2747
2748 if (!rdev->ops->change_beacon)
2749 return -EOPNOTSUPP;
2750
2751 if (!wdev->beacon_interval)
2752 return -EINVAL;
2753
2754 err = nl80211_parse_beacon(info, &params);
2755 if (err)
2756 return err;
2757
e35e4d28 2758 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 2759}
2760
2761static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2762{
4c476991
JB		 2763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2764 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2765
60771780 2766 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2767}
2768
5727ef1b
JB		 2769static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2770 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2771 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2772 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2773 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2774 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2775 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2776};
2777
eccb8e8f 2778static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2779 enum nl80211_iftype iftype,
eccb8e8f 2780 struct station_parameters *params)
5727ef1b
JB		 2781{
2782 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2783 struct nlattr *nla;
5727ef1b
JB		 2784 int flag;
2785
eccb8e8f
JB		 2786 /*
2787 * Try parsing the new attribute first so userspace
2788 * can specify both for older kernels.
2789 */
2790 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2791 if (nla) {
2792 struct nl80211_sta_flag_update *sta_flags;
2793
2794 sta_flags = nla_data(nla);
2795 params->sta_flags_mask = sta_flags->mask;
2796 params->sta_flags_set = sta_flags->set;
2797 if ((params->sta_flags_mask |
2798 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2799 return -EINVAL;
2800 return 0;
2801 }
2802
2803 /* if present, parse the old attribute */
5727ef1b 2804
eccb8e8f 2805 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2806 if (!nla)
2807 return 0;
2808
2809 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2810 nla, sta_flags_policy))
2811 return -EINVAL;
2812
bdd3ae3d
JB		 2813 /*
2814 * Only allow certain flags for interface types so that
2815 * other attributes are silently ignored. Remember that
2816 * this is backward compatibility code with old userspace
2817 * and shouldn't be hit in other cases anyway.
2818 */
2819 switch (iftype) {
2820 case NL80211_IFTYPE_AP:
2821 case NL80211_IFTYPE_AP_VLAN:
2822 case NL80211_IFTYPE_P2P_GO:
2823 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2824 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2825 BIT(NL80211_STA_FLAG_WME) |
2826 BIT(NL80211_STA_FLAG_MFP);
2827 break;
2828 case NL80211_IFTYPE_P2P_CLIENT:
2829 case NL80211_IFTYPE_STATION:
2830 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2831 BIT(NL80211_STA_FLAG_TDLS_PEER);
2832 break;
2833 case NL80211_IFTYPE_MESH_POINT:
2834 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2835 BIT(NL80211_STA_FLAG_MFP) |
2836 BIT(NL80211_STA_FLAG_AUTHORIZED);
2837 default:
2838 return -EINVAL;
2839 }
5727ef1b 2840
3383b5a6
JB		 2841 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2842 if (flags[flag]) {
eccb8e8f 2843 params->sta_flags_set |= (1<<flag);
5727ef1b 2844
3383b5a6
JB		 2845 /* no longer support new API additions in old API */
2846 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2847 return -EINVAL;
2848 }
2849 }
2850
5727ef1b
JB		 2851 return 0;
2852}
2853
c8dcfd8a
FF		 2854static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2855 int attr)
2856{
2857 struct nlattr *rate;
8eb41c8d
VK		 2858 u32 bitrate;
2859 u16 bitrate_compat;
c8dcfd8a
FF		 2860
2861 rate = nla_nest_start(msg, attr);
2862 if (!rate)
db9c64cf 2863 return false;
c8dcfd8a
FF		 2864
2865 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2866 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 2867 /* report 16-bit bitrate only if we can */
2868 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 2869 if (bitrate > 0 &&
2870 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
2871 return false;
2872 if (bitrate_compat > 0 &&
2873 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
2874 return false;
2875
2876 if (info->flags & RATE_INFO_FLAGS_MCS) {
2877 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
2878 return false;
2879 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2880 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2881 return false;
2882 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2883 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2884 return false;
2885 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
2886 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
2887 return false;
2888 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
2889 return false;
2890 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2891 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2892 return false;
2893 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
2894 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
2895 return false;
2896 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
2897 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
2898 return false;
2899 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
2900 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
2901 return false;
2902 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2903 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2904 return false;
2905 }
c8dcfd8a
FF		 2906
2907 nla_nest_end(msg, rate);
2908 return true;
c8dcfd8a
FF		 2909}
2910
15e47304 2911static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 2912 int flags,
2913 struct cfg80211_registered_device *rdev,
2914 struct net_device *dev,
98b62183 2915 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2916{
2917 void *hdr;
f4263c98 2918 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 2919
15e47304 2920 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 2921 if (!hdr)
2922 return -1;
2923
9360ffd1
DM		 2924 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2925 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2926 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2927 goto nla_put_failure;
f5ea9120 2928
2ec600d6
LCC		 2929 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2930 if (!sinfoattr)
fd5b74dc 2931 goto nla_put_failure;
9360ffd1
DM		 2932 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2933 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2934 sinfo->connected_time))
2935 goto nla_put_failure;
2936 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2937 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2938 sinfo->inactive_time))
2939 goto nla_put_failure;
2940 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2941 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2942 sinfo->rx_bytes))
2943 goto nla_put_failure;
2944 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2945 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2946 sinfo->tx_bytes))
2947 goto nla_put_failure;
2948 if ((sinfo->filled & STATION_INFO_LLID) &&
2949 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2950 goto nla_put_failure;
2951 if ((sinfo->filled & STATION_INFO_PLID) &&
2952 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2953 goto nla_put_failure;
2954 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2955 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2956 sinfo->plink_state))
2957 goto nla_put_failure;
66266b3a
JL		 2958 switch (rdev->wiphy.signal_type) {
2959 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2960 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2961 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2962 sinfo->signal))
2963 goto nla_put_failure;
2964 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2965 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2966 sinfo->signal_avg))
2967 goto nla_put_failure;
66266b3a
JL		 2968 break;
2969 default:
2970 break;
2971 }
420e7fab 2972 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2973 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2974 NL80211_STA_INFO_TX_BITRATE))
2975 goto nla_put_failure;
2976 }
2977 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2978 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2979 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2980 goto nla_put_failure;
420e7fab 2981 }
9360ffd1
DM		 2982 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2983 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2984 sinfo->rx_packets))
2985 goto nla_put_failure;
2986 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2987 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2988 sinfo->tx_packets))
2989 goto nla_put_failure;
2990 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2991 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2992 sinfo->tx_retries))
2993 goto nla_put_failure;
2994 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2995 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2996 sinfo->tx_failed))
2997 goto nla_put_failure;
2998 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2999 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3000 sinfo->beacon_loss_count))
3001 goto nla_put_failure;
f4263c98
PS		 3002 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3003 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3004 if (!bss_param)
3005 goto nla_put_failure;
3006
9360ffd1
DM		 3007 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3008 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3009 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3010 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3011 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3012 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3013 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3014 sinfo->bss_param.dtim_period) ||
3015 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3016 sinfo->bss_param.beacon_interval))
3017 goto nla_put_failure;
f4263c98
PS		 3018
3019 nla_nest_end(msg, bss_param);
3020 }
9360ffd1
DM		 3021 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3022 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3023 sizeof(struct nl80211_sta_flag_update),
3024 &sinfo->sta_flags))
3025 goto nla_put_failure;
7eab0f64
JL		 3026 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3027 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3028 sinfo->t_offset))
3029 goto nla_put_failure;
2ec600d6 3030 nla_nest_end(msg, sinfoattr);
fd5b74dc 3031
9360ffd1
DM		 3032 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3033 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3034 sinfo->assoc_req_ies))
3035 goto nla_put_failure;
50d3dfb7 3036
fd5b74dc
JB		 3037 return genlmsg_end(msg, hdr);
3038
3039 nla_put_failure:
bc3ed28c
TG		 3040 genlmsg_cancel(msg, hdr);
3041 return -EMSGSIZE;
fd5b74dc
JB		 3042}
3043
2ec600d6 3044static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3045 struct netlink_callback *cb)
2ec600d6 3046{
2ec600d6
LCC		 3047 struct station_info sinfo;
3048 struct cfg80211_registered_device *dev;
bba95fef 3049 struct net_device *netdev;
2ec600d6 3050 u8 mac_addr[ETH_ALEN];
bba95fef 3051 int sta_idx = cb->args[1];
2ec600d6 3052 int err;
2ec600d6 3053
67748893
JB		 3054 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3055 if (err)
3056 return err;
bba95fef
JB		 3057
3058 if (!dev->ops->dump_station) {
eec60b03 3059 err = -EOPNOTSUPP;
bba95fef
JB		 3060 goto out_err;
3061 }
3062
bba95fef 3063 while (1) {
f612cedf 3064 memset(&sinfo, 0, sizeof(sinfo));
e35e4d28
HG		 3065 err = rdev_dump_station(dev, netdev, sta_idx,
3066 mac_addr, &sinfo);
bba95fef
JB		 3067 if (err == -ENOENT)
3068 break;
3069 if (err)
3b85875a 3070 goto out_err;
bba95fef
JB		 3071
3072 if (nl80211_send_station(skb,
15e47304 3073 NETLINK_CB(cb->skb).portid,
bba95fef 3074 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 3075 dev, netdev, mac_addr,
bba95fef
JB		 3076 &sinfo) < 0)
3077 goto out;
3078
3079 sta_idx++;
3080 }
3081
3082
3083 out:
3084 cb->args[1] = sta_idx;
3085 err = skb->len;
bba95fef 3086 out_err:
67748893 3087 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 3088
3089 return err;
2ec600d6 3090}
fd5b74dc 3091
5727ef1b
JB		 3092static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3093{
4c476991
JB		 3094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3095 struct net_device *dev = info->user_ptr[1];
2ec600d6 3096 struct station_info sinfo;
fd5b74dc
JB		 3097 struct sk_buff *msg;
3098 u8 *mac_addr = NULL;
4c476991 3099 int err;
fd5b74dc 3100
2ec600d6 3101 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3102
3103 if (!info->attrs[NL80211_ATTR_MAC])
3104 return -EINVAL;
3105
3106 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3107
4c476991
JB		 3108 if (!rdev->ops->get_station)
3109 return -EOPNOTSUPP;
3b85875a 3110
e35e4d28 3111 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3112 if (err)
4c476991 3113 return err;
2ec600d6 3114
fd2120ca 3115 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3116 if (!msg)
4c476991 3117 return -ENOMEM;
fd5b74dc 3118
15e47304 3119 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3120 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3121 nlmsg_free(msg);
3122 return -ENOBUFS;
3123 }
3b85875a 3124
4c476991 3125 return genlmsg_reply(msg, info);
5727ef1b
JB		 3126}
3127
3128/*
c258d2de 3129 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3130 */
80b99899
JB		 3131static struct net_device *get_vlan(struct genl_info *info,
3132 struct cfg80211_registered_device *rdev)
5727ef1b 3133{
463d0183 3134 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3135 struct net_device *v;
3136 int ret;
3137
3138 if (!vlanattr)
3139 return NULL;
3140
3141 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3142 if (!v)
3143 return ERR_PTR(-ENODEV);
3144
3145 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3146 ret = -EINVAL;
3147 goto error;
5727ef1b 3148 }
80b99899
JB		 3149
3150 if (!netif_running(v)) {
3151 ret = -ENETDOWN;
3152 goto error;
3153 }
3154
3155 return v;
3156 error:
3157 dev_put(v);
3158 return ERR_PTR(ret);
5727ef1b
JB		 3159}
3160
3161static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3162{
4c476991 3163 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3164 int err;
4c476991 3165 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3166 struct station_parameters params;
3167 u8 *mac_addr = NULL;
3168
3169 memset(&params, 0, sizeof(params));
3170
3171 params.listen_interval = -1;
57cf8043 3172 params.plink_state = -1;
5727ef1b
JB		 3173
3174 if (info->attrs[NL80211_ATTR_STA_AID])
3175 return -EINVAL;
3176
3177 if (!info->attrs[NL80211_ATTR_MAC])
3178 return -EINVAL;
3179
3180 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3181
3182 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3183 params.supported_rates =
3184 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3185 params.supported_rates_len =
3186 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3187 }
3188
3189 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3190 params.listen_interval =
3191 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3192
36aedc90
JM		 3193 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3194 params.ht_capa =
3195 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3196
bdd90d5e
JB		 3197 if (!rdev->ops->change_station)
3198 return -EOPNOTSUPP;
3199
bdd3ae3d 3200 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3201 return -EINVAL;
3202
2ec600d6
LCC		 3203 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3204 params.plink_action =
3205 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3206
9c3990aa
JC		 3207 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3208 params.plink_state =
3209 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3210
a97f4424
JB		 3211 switch (dev->ieee80211_ptr->iftype) {
3212 case NL80211_IFTYPE_AP:
3213 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3214 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3215 /* disallow mesh-specific things */
3216 if (params.plink_action)
bdd90d5e
JB		 3217 return -EINVAL;
3218
3219 /* TDLS can't be set, ... */
3220 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3221 return -EINVAL;
3222 /*
3223 * ... but don't bother the driver with it. This works around
3224 * a hostapd/wpa_supplicant issue -- it always includes the
3225 * TLDS_PEER flag in the mask even for AP mode.
3226 */
3227 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3228
3229 /* accept only the listed bits */
3230 if (params.sta_flags_mask &
3231 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3232 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3233 BIT(NL80211_STA_FLAG_WME) |
3234 BIT(NL80211_STA_FLAG_MFP)))
3235 return -EINVAL;
3236
3237 /* must be last in here for error handling */
3238 params.vlan = get_vlan(info, rdev);
3239 if (IS_ERR(params.vlan))
3240 return PTR_ERR(params.vlan);
a97f4424 3241 break;
074ac8df 3242 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3243 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3244 /*
3245 * Don't allow userspace to change the TDLS_PEER flag,
3246 * but silently ignore attempts to change it since we
3247 * don't have state here to verify that it doesn't try
3248 * to change the flag.
3249 */
3250 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 3251 /* fall through */
3252 case NL80211_IFTYPE_ADHOC:
3253 /* disallow things sta doesn't support */
3254 if (params.plink_action)
3255 return -EINVAL;
3256 if (params.ht_capa)
3257 return -EINVAL;
3258 if (params.listen_interval >= 0)
3259 return -EINVAL;
bdd90d5e
JB		 3260 /* reject any changes other than AUTHORIZED */
3261 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3262 return -EINVAL;
a97f4424
JB		 3263 break;
3264 case NL80211_IFTYPE_MESH_POINT:
3265 /* disallow things mesh doesn't support */
3266 if (params.vlan)
bdd90d5e 3267 return -EINVAL;
a97f4424 3268 if (params.ht_capa)
bdd90d5e 3269 return -EINVAL;
a97f4424 3270 if (params.listen_interval >= 0)
bdd90d5e
JB		 3271 return -EINVAL;
3272 /*
3273 * No special handling for TDLS here -- the userspace
3274 * mesh code doesn't have this bug.
3275 */
b39c48fa
JC		 3276 if (params.sta_flags_mask &
3277 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3278 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3279 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3280 return -EINVAL;
a97f4424
JB		 3281 break;
3282 default:
bdd90d5e 3283 return -EOPNOTSUPP;
034d655e
JB		 3284 }
3285
bdd90d5e 3286 /* be aware of params.vlan when changing code here */
5727ef1b 3287
e35e4d28 3288 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3289
5727ef1b
JB		 3290 if (params.vlan)
3291 dev_put(params.vlan);
3b85875a 3292
5727ef1b
JB		 3293 return err;
3294}
3295
c75786c9
EP		 3296static struct nla_policy
3297nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3298 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3299 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3300};
3301
5727ef1b
JB		 3302static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3303{
4c476991 3304 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3305 int err;
4c476991 3306 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3307 struct station_parameters params;
3308 u8 *mac_addr = NULL;
3309
3310 memset(&params, 0, sizeof(params));
3311
3312 if (!info->attrs[NL80211_ATTR_MAC])
3313 return -EINVAL;
3314
5727ef1b
JB		 3315 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3316 return -EINVAL;
3317
3318 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3319 return -EINVAL;
3320
0e956c13
TLSC		 3321 if (!info->attrs[NL80211_ATTR_STA_AID])
3322 return -EINVAL;
3323
5727ef1b
JB		 3324 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3325 params.supported_rates =
3326 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3327 params.supported_rates_len =
3328 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3329 params.listen_interval =
3330 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3331
0e956c13
TLSC		 3332 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3333 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3334 return -EINVAL;
51b50fbe 3335
36aedc90
JM		 3336 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3337 params.ht_capa =
3338 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3339
f461be3e
MP		 3340 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3341 params.vht_capa =
3342 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3343
96b78dff
JC		 3344 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3345 params.plink_action =
3346 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3347
bdd90d5e
JB		 3348 if (!rdev->ops->add_station)
3349 return -EOPNOTSUPP;
3350
bdd3ae3d 3351 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3352 return -EINVAL;
3353
bdd90d5e
JB		 3354 switch (dev->ieee80211_ptr->iftype) {
3355 case NL80211_IFTYPE_AP:
3356 case NL80211_IFTYPE_AP_VLAN:
3357 case NL80211_IFTYPE_P2P_GO:
3358 /* parse WME attributes if sta is WME capable */
3359 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3360 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3361 info->attrs[NL80211_ATTR_STA_WME]) {
3362 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3363 struct nlattr *nla;
3364
3365 nla = info->attrs[NL80211_ATTR_STA_WME];
3366 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3367 nl80211_sta_wme_policy);
3368 if (err)
3369 return err;
3370
3371 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3372 params.uapsd_queues =
3373 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3374 if (params.uapsd_queues &
3375 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3376 return -EINVAL;
c75786c9 3377
bdd90d5e
JB		 3378 if (tb[NL80211_STA_WME_MAX_SP])
3379 params.max_sp =
3380 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3381
bdd90d5e
JB		 3382 if (params.max_sp &
3383 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3384 return -EINVAL;
4319e193 3385
bdd90d5e
JB		 3386 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3387 }
3388 /* TDLS peers cannot be added */
3389 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3390 return -EINVAL;
bdd90d5e
JB		 3391 /* but don't bother the driver with it */
3392 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3393
bdd90d5e
JB		 3394 /* must be last in here for error handling */
3395 params.vlan = get_vlan(info, rdev);
3396 if (IS_ERR(params.vlan))
3397 return PTR_ERR(params.vlan);
3398 break;
3399 case NL80211_IFTYPE_MESH_POINT:
3400 /* TDLS peers cannot be added */
3401 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3402 return -EINVAL;
3403 break;
3404 case NL80211_IFTYPE_STATION:
3405 /* Only TDLS peers can be added */
3406 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3407 return -EINVAL;
3408 /* Can only add if TDLS ... */
3409 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3410 return -EOPNOTSUPP;
3411 /* ... with external setup is supported */
3412 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3413 return -EOPNOTSUPP;
3414 break;
3415 default:
3416 return -EOPNOTSUPP;
c75786c9
EP		 3417 }
3418
bdd90d5e 3419 /* be aware of params.vlan when changing code here */
5727ef1b 3420
e35e4d28 3421 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 3422
5727ef1b
JB		 3423 if (params.vlan)
3424 dev_put(params.vlan);
5727ef1b
JB		 3425 return err;
3426}
3427
3428static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3429{
4c476991
JB		 3430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3431 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3432 u8 *mac_addr = NULL;
3433
3434 if (info->attrs[NL80211_ATTR_MAC])
3435 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3436
e80cf853 3437 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3438 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3439 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3440 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3441 return -EINVAL;
5727ef1b 3442
4c476991
JB		 3443 if (!rdev->ops->del_station)
3444 return -EOPNOTSUPP;
3b85875a 3445
e35e4d28 3446 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 3447}
3448
15e47304 3449static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3450 int flags, struct net_device *dev,
3451 u8 *dst, u8 *next_hop,
3452 struct mpath_info *pinfo)
3453{
3454 void *hdr;
3455 struct nlattr *pinfoattr;
3456
15e47304 3457 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3458 if (!hdr)
3459 return -1;
3460
9360ffd1
DM		 3461 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3462 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3463 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3464 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3465 goto nla_put_failure;
f5ea9120 3466
2ec600d6
LCC		 3467 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3468 if (!pinfoattr)
3469 goto nla_put_failure;
9360ffd1
DM		 3470 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3471 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3472 pinfo->frame_qlen))
3473 goto nla_put_failure;
3474 if (((pinfo->filled & MPATH_INFO_SN) &&
3475 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3476 ((pinfo->filled & MPATH_INFO_METRIC) &&
3477 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3478 pinfo->metric)) ||
3479 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3480 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3481 pinfo->exptime)) ||
3482 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3483 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3484 pinfo->flags)) ||
3485 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3486 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3487 pinfo->discovery_timeout)) ||
3488 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3489 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3490 pinfo->discovery_retries)))
3491 goto nla_put_failure;
2ec600d6
LCC		 3492
3493 nla_nest_end(msg, pinfoattr);
3494
3495 return genlmsg_end(msg, hdr);
3496
3497 nla_put_failure:
bc3ed28c
TG		 3498 genlmsg_cancel(msg, hdr);
3499 return -EMSGSIZE;
2ec600d6
LCC		 3500}
3501
3502static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3503 struct netlink_callback *cb)
2ec600d6 3504{
2ec600d6
LCC		 3505 struct mpath_info pinfo;
3506 struct cfg80211_registered_device *dev;
bba95fef 3507 struct net_device *netdev;
2ec600d6
LCC		 3508 u8 dst[ETH_ALEN];
3509 u8 next_hop[ETH_ALEN];
bba95fef 3510 int path_idx = cb->args[1];
2ec600d6 3511 int err;
2ec600d6 3512
67748893
JB		 3513 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3514 if (err)
3515 return err;
bba95fef
JB		 3516
3517 if (!dev->ops->dump_mpath) {
eec60b03 3518 err = -EOPNOTSUPP;
bba95fef
JB		 3519 goto out_err;
3520 }
3521
eec60b03
JM		 3522 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3523 err = -EOPNOTSUPP;
0448b5fc 3524 goto out_err;
eec60b03
JM		 3525 }
3526
bba95fef 3527 while (1) {
e35e4d28
HG		 3528 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3529 &pinfo);
bba95fef 3530 if (err == -ENOENT)
2ec600d6 3531 break;
bba95fef 3532 if (err)
3b85875a 3533 goto out_err;
2ec600d6 3534
15e47304 3535 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3536 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3537 netdev, dst, next_hop,
3538 &pinfo) < 0)
3539 goto out;
2ec600d6 3540
bba95fef 3541 path_idx++;
2ec600d6 3542 }
2ec600d6 3543
2ec600d6 3544
bba95fef
JB		 3545 out:
3546 cb->args[1] = path_idx;
3547 err = skb->len;
bba95fef 3548 out_err:
67748893 3549 nl80211_finish_netdev_dump(dev);
bba95fef 3550 return err;
2ec600d6
LCC		 3551}
3552
3553static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3554{
4c476991 3555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3556 int err;
4c476991 3557 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3558 struct mpath_info pinfo;
3559 struct sk_buff *msg;
3560 u8 *dst = NULL;
3561 u8 next_hop[ETH_ALEN];
3562
3563 memset(&pinfo, 0, sizeof(pinfo));
3564
3565 if (!info->attrs[NL80211_ATTR_MAC])
3566 return -EINVAL;
3567
3568 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3569
4c476991
JB		 3570 if (!rdev->ops->get_mpath)
3571 return -EOPNOTSUPP;
2ec600d6 3572
4c476991
JB		 3573 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3574 return -EOPNOTSUPP;
eec60b03 3575
e35e4d28 3576 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 3577 if (err)
4c476991 3578 return err;
2ec600d6 3579
fd2120ca 3580 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3581 if (!msg)
4c476991 3582 return -ENOMEM;
2ec600d6 3583
15e47304 3584 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3585 dev, dst, next_hop, &pinfo) < 0) {
3586 nlmsg_free(msg);
3587 return -ENOBUFS;
3588 }
3b85875a 3589
4c476991 3590 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3591}
3592
3593static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3594{
4c476991
JB		 3595 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3596 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3597 u8 *dst = NULL;
3598 u8 *next_hop = NULL;
3599
3600 if (!info->attrs[NL80211_ATTR_MAC])
3601 return -EINVAL;
3602
3603 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3604 return -EINVAL;
3605
3606 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3607 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3608
4c476991
JB		 3609 if (!rdev->ops->change_mpath)
3610 return -EOPNOTSUPP;
35a8efe1 3611
4c476991
JB		 3612 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3613 return -EOPNOTSUPP;
2ec600d6 3614
e35e4d28 3615 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 3616}
4c476991 3617
2ec600d6
LCC		 3618static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3619{
4c476991
JB		 3620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3621 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3622 u8 *dst = NULL;
3623 u8 *next_hop = NULL;
3624
3625 if (!info->attrs[NL80211_ATTR_MAC])
3626 return -EINVAL;
3627
3628 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3629 return -EINVAL;
3630
3631 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3632 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3633
4c476991
JB		 3634 if (!rdev->ops->add_mpath)
3635 return -EOPNOTSUPP;
35a8efe1 3636
4c476991
JB		 3637 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3638 return -EOPNOTSUPP;
2ec600d6 3639
e35e4d28 3640 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 3641}
3642
3643static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3644{
4c476991
JB		 3645 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3646 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3647 u8 *dst = NULL;
3648
3649 if (info->attrs[NL80211_ATTR_MAC])
3650 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3651
4c476991
JB		 3652 if (!rdev->ops->del_mpath)
3653 return -EOPNOTSUPP;
3b85875a 3654
e35e4d28 3655 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 3656}
3657
9f1ba906
JM		 3658static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3659{
4c476991
JB		 3660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3661 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3662 struct bss_parameters params;
3663
3664 memset(&params, 0, sizeof(params));
3665 /* default to not changing parameters */
3666 params.use_cts_prot = -1;
3667 params.use_short_preamble = -1;
3668 params.use_short_slot_time = -1;
fd8aaaf3 3669 params.ap_isolate = -1;
50b12f59 3670 params.ht_opmode = -1;
9f1ba906
JM		 3671
3672 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3673 params.use_cts_prot =
3674 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3675 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3676 params.use_short_preamble =
3677 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3678 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3679 params.use_short_slot_time =
3680 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3681 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3682 params.basic_rates =
3683 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3684 params.basic_rates_len =
3685 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3686 }
fd8aaaf3
FF		 3687 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3688 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3689 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3690 params.ht_opmode =
3691 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3692
4c476991
JB		 3693 if (!rdev->ops->change_bss)
3694 return -EOPNOTSUPP;
9f1ba906 3695
074ac8df 3696 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3697 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3698 return -EOPNOTSUPP;
3b85875a 3699
e35e4d28 3700 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 3701}
3702
b54452b0 3703static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3704 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3705 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3706 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3707 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3708 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3709 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3710};
3711
3712static int parse_reg_rule(struct nlattr *tb[],
3713 struct ieee80211_reg_rule *reg_rule)
3714{
3715 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3716 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3717
3718 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3719 return -EINVAL;
3720 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3721 return -EINVAL;
3722 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3723 return -EINVAL;
3724 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3725 return -EINVAL;
3726 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3727 return -EINVAL;
3728
3729 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3730
3731 freq_range->start_freq_khz =
3732 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3733 freq_range->end_freq_khz =
3734 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3735 freq_range->max_bandwidth_khz =
3736 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3737
3738 power_rule->max_eirp =
3739 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3740
3741 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3742 power_rule->max_antenna_gain =
3743 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3744
3745 return 0;
3746}
3747
3748static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3749{
3750 int r;
3751 char *data = NULL;
57b5ce07 3752 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 3753
80778f18
LR		 3754 /*
3755 * You should only get this when cfg80211 hasn't yet initialized
3756 * completely when built-in to the kernel right between the time
3757 * window between nl80211_init() and regulatory_init(), if that is
3758 * even possible.
3759 */
3760 mutex_lock(&cfg80211_mutex);
3761 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3762 mutex_unlock(&cfg80211_mutex);
3763 return -EINPROGRESS;
80778f18 3764 }
fe33eb39 3765 mutex_unlock(&cfg80211_mutex);
80778f18 3766
fe33eb39
LR		 3767 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3768 return -EINVAL;
b2e1b302
LR		 3769
3770 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3771
57b5ce07
LR		 3772 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3773 user_reg_hint_type =
3774 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3775 else
3776 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3777
3778 switch (user_reg_hint_type) {
3779 case NL80211_USER_REG_HINT_USER:
3780 case NL80211_USER_REG_HINT_CELL_BASE:
3781 break;
3782 default:
3783 return -EINVAL;
3784 }
3785
3786 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 3787
b2e1b302
LR		 3788 return r;
3789}
3790
24bdd9f4 3791static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3792 struct genl_info *info)
93da9cc1 3793{
4c476991 3794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3795 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3796 struct wireless_dev *wdev = dev->ieee80211_ptr;
3797 struct mesh_config cur_params;
3798 int err = 0;
93da9cc1 3799 void *hdr;
3800 struct nlattr *pinfoattr;
3801 struct sk_buff *msg;
3802
29cbe68c
JB		 3803 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3804 return -EOPNOTSUPP;
3805
24bdd9f4 3806 if (!rdev->ops->get_mesh_config)
4c476991 3807 return -EOPNOTSUPP;
f3f92586 3808
29cbe68c
JB		 3809 wdev_lock(wdev);
3810 /* If not connected, get default parameters */
3811 if (!wdev->mesh_id_len)
3812 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3813 else
e35e4d28 3814 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 3815 wdev_unlock(wdev);
3816
93da9cc1 3817 if (err)
4c476991 3818 return err;
93da9cc1 3819
3820 /* Draw up a netlink message to send back */
fd2120ca 3821 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3822 if (!msg)
3823 return -ENOMEM;
15e47304 3824 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 3825 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3826 if (!hdr)
efe1cf0c 3827 goto out;
24bdd9f4 3828 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3829 if (!pinfoattr)
3830 goto nla_put_failure;
9360ffd1
DM		 3831 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3832 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3833 cur_params.dot11MeshRetryTimeout) ||
3834 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3835 cur_params.dot11MeshConfirmTimeout) ||
3836 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3837 cur_params.dot11MeshHoldingTimeout) ||
3838 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3839 cur_params.dot11MeshMaxPeerLinks) ||
3840 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3841 cur_params.dot11MeshMaxRetries) ||
3842 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3843 cur_params.dot11MeshTTL) ||
3844 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3845 cur_params.element_ttl) ||
3846 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3847 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3848 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3849 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3850 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3851 cur_params.dot11MeshHWMPmaxPREQretries) ||
3852 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3853 cur_params.path_refresh_time) ||
3854 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3855 cur_params.min_discovery_timeout) ||
3856 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3857 cur_params.dot11MeshHWMPactivePathTimeout) ||
3858 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3859 cur_params.dot11MeshHWMPpreqMinInterval) ||
3860 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3861 cur_params.dot11MeshHWMPperrMinInterval) ||
3862 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3863 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3864 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3865 cur_params.dot11MeshHWMPRootMode) ||
3866 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3867 cur_params.dot11MeshHWMPRannInterval) ||
3868 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3869 cur_params.dot11MeshGateAnnouncementProtocol) ||
3870 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3871 cur_params.dot11MeshForwarding) ||
3872 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3873 cur_params.rssi_threshold) ||
3874 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3875 cur_params.ht_opmode) ||
3876 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3877 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3878 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3879 cur_params.dot11MeshHWMProotInterval) ||
3880 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3881 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3882 goto nla_put_failure;
93da9cc1 3883 nla_nest_end(msg, pinfoattr);
3884 genlmsg_end(msg, hdr);
4c476991 3885 return genlmsg_reply(msg, info);
93da9cc1 3886
3b85875a 3887 nla_put_failure:
93da9cc1 3888 genlmsg_cancel(msg, hdr);
efe1cf0c 3889 out:
d080e275 3890 nlmsg_free(msg);
4c476991 3891 return -ENOBUFS;
93da9cc1 3892}
3893
b54452b0 3894static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3895 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3896 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3897 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3898 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3899 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3900 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3901 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3902 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3903 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3904 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3905 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3906 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3907 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3908 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3909 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3910 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3911 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3912 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3913 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3914 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3915 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3916 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3917 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3918 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3919 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3920};
3921
c80d545d
JC		 3922static const struct nla_policy
3923 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3924 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3925 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3926 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3927 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3928 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3929 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3930 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3931};
3932
24bdd9f4 3933static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3934 struct mesh_config *cfg,
3935 u32 *mask_out)
93da9cc1 3936{
93da9cc1 3937 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3938 u32 mask = 0;
93da9cc1 3939
bd90fdcc
JB		 3940#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3941do {\
3942 if (table[attr_num]) {\
3943 cfg->param = nla_fn(table[attr_num]); \
3944 mask |= (1 << (attr_num - 1)); \
3945 } \
3946} while (0);\
3947
3948
24bdd9f4 3949 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3950 return -EINVAL;
3951 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3952 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3953 nl80211_meshconf_params_policy))
93da9cc1 3954 return -EINVAL;
3955
93da9cc1 3956 /* This makes sure that there aren't more than 32 mesh config
3957 * parameters (otherwise our bitfield scheme would not work.) */
3958 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3959
3960 /* Fill in the params struct */
93da9cc1 3961 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
a4f606ea
CYY		 3962 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3963 nla_get_u16);
93da9cc1 3964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
a4f606ea
CYY		 3965 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3966 nla_get_u16);
93da9cc1 3967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
a4f606ea
CYY		 3968 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3969 nla_get_u16);
93da9cc1 3970 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
a4f606ea
CYY		 3971 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3972 nla_get_u16);
93da9cc1 3973 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
a4f606ea
CYY		 3974 mask, NL80211_MESHCONF_MAX_RETRIES,
3975 nla_get_u8);
93da9cc1 3976 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
a4f606ea 3977 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21 3978 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
a4f606ea
CYY		 3979 mask, NL80211_MESHCONF_ELEMENT_TTL,
3980 nla_get_u8);
93da9cc1 3981 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
a4f606ea
CYY		 3982 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3983 nla_get_u8);
3984 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3985 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3986 nla_get_u32);
93da9cc1 3987 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
a4f606ea
CYY		 3988 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3989 nla_get_u8);
93da9cc1 3990 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
a4f606ea
CYY		 3991 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3992 nla_get_u32);
93da9cc1 3993 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
a4f606ea
CYY		 3994 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3995 nla_get_u16);
3996 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3997 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3998 nla_get_u32);
93da9cc1 3999 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
a4f606ea
CYY		 4000 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4001 nla_get_u16);
dca7e943 4002 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
a4f606ea
CYY		 4003 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4004 nla_get_u16);
93da9cc1 4005 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 4006 dot11MeshHWMPnetDiameterTraversalTime, mask,
4007 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4008 nla_get_u16);
4009 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
4010 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
4011 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
4012 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4013 nla_get_u16);
63c5723b 4014 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 4015 dot11MeshGateAnnouncementProtocol, mask,
4016 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4017 nla_get_u8);
94f90656 4018 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
a4f606ea
CYY		 4019 mask, NL80211_MESHCONF_FORWARDING,
4020 nla_get_u8);
55335137 4021 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
a4f606ea
CYY		 4022 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4023 nla_get_u32);
70c33eaa 4024 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
a4f606ea 4025 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4026 nla_get_u16);
4027 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4028 mask,
4029 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4030 nla_get_u32);
4031 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
4032 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4033 nla_get_u16);
4034 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4035 dot11MeshHWMPconfirmationInterval, mask,
4036 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4037 nla_get_u16);
bd90fdcc
JB		 4038 if (mask_out)
4039 *mask_out = mask;
c80d545d 4040
bd90fdcc
JB		 4041 return 0;
4042
4043#undef FILL_IN_MESH_PARAM_IF_SET
4044}
4045
c80d545d
JC		 4046static int nl80211_parse_mesh_setup(struct genl_info *info,
4047 struct mesh_setup *setup)
4048{
4049 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4050
4051 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4052 return -EINVAL;
4053 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4054 info->attrs[NL80211_ATTR_MESH_SETUP],
4055 nl80211_mesh_setup_params_policy))
4056 return -EINVAL;
4057
d299a1f2
JC		 4058 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4059 setup->sync_method =
4060 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4061 IEEE80211_SYNC_METHOD_VENDOR :
4062 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4063
c80d545d
JC		 4064 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4065 setup->path_sel_proto =
4066 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4067 IEEE80211_PATH_PROTOCOL_VENDOR :
4068 IEEE80211_PATH_PROTOCOL_HWMP;
4069
4070 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4071 setup->path_metric =
4072 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4073 IEEE80211_PATH_METRIC_VENDOR :
4074 IEEE80211_PATH_METRIC_AIRTIME;
4075
581a8b0f
JC		 4076
4077 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4078 struct nlattr *ieattr =
581a8b0f 4079 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4080 if (!is_valid_ie_attr(ieattr))
4081 return -EINVAL;
581a8b0f
JC		 4082 setup->ie = nla_data(ieattr);
4083 setup->ie_len = nla_len(ieattr);
c80d545d 4084 }
b130e5ce
JC		 4085 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4086 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4087
4088 return 0;
4089}
4090
24bdd9f4 4091static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4092 struct genl_info *info)
bd90fdcc
JB		 4093{
4094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4095 struct net_device *dev = info->user_ptr[1];
29cbe68c 4096 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4097 struct mesh_config cfg;
4098 u32 mask;
4099 int err;
4100
29cbe68c
JB		 4101 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4102 return -EOPNOTSUPP;
4103
24bdd9f4 4104 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4105 return -EOPNOTSUPP;
4106
24bdd9f4 4107 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4108 if (err)
4109 return err;
4110
29cbe68c
JB		 4111 wdev_lock(wdev);
4112 if (!wdev->mesh_id_len)
4113 err = -ENOLINK;
4114
4115 if (!err)
e35e4d28 4116 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4117
4118 wdev_unlock(wdev);
4119
4120 return err;
93da9cc1 4121}
4122
f130347c
LR		 4123static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4124{
4125 struct sk_buff *msg;
4126 void *hdr = NULL;
4127 struct nlattr *nl_reg_rules;
4128 unsigned int i;
4129 int err = -EINVAL;
4130
a1794390 4131 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4132
4133 if (!cfg80211_regdomain)
4134 goto out;
4135
fd2120ca 4136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4137 if (!msg) {
4138 err = -ENOBUFS;
4139 goto out;
4140 }
4141
15e47304 4142 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4143 NL80211_CMD_GET_REG);
4144 if (!hdr)
efe1cf0c 4145 goto put_failure;
f130347c 4146
9360ffd1
DM		 4147 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
4148 cfg80211_regdomain->alpha2) ||
4149 (cfg80211_regdomain->dfs_region &&
4150 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
4151 cfg80211_regdomain->dfs_region)))
4152 goto nla_put_failure;
f130347c 4153
57b5ce07
LR		 4154 if (reg_last_request_cell_base() &&
4155 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4156 NL80211_USER_REG_HINT_CELL_BASE))
4157 goto nla_put_failure;
4158
f130347c
LR		 4159 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4160 if (!nl_reg_rules)
4161 goto nla_put_failure;
4162
4163 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
4164 struct nlattr *nl_reg_rule;
4165 const struct ieee80211_reg_rule *reg_rule;
4166 const struct ieee80211_freq_range *freq_range;
4167 const struct ieee80211_power_rule *power_rule;
4168
4169 reg_rule = &cfg80211_regdomain->reg_rules[i];
4170 freq_range = &reg_rule->freq_range;
4171 power_rule = &reg_rule->power_rule;
4172
4173 nl_reg_rule = nla_nest_start(msg, i);
4174 if (!nl_reg_rule)
4175 goto nla_put_failure;
4176
9360ffd1
DM		 4177 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4178 reg_rule->flags) ||
4179 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4180 freq_range->start_freq_khz) ||
4181 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4182 freq_range->end_freq_khz) ||
4183 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4184 freq_range->max_bandwidth_khz) ||
4185 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4186 power_rule->max_antenna_gain) ||
4187 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4188 power_rule->max_eirp))
4189 goto nla_put_failure;
f130347c
LR		 4190
4191 nla_nest_end(msg, nl_reg_rule);
4192 }
4193
4194 nla_nest_end(msg, nl_reg_rules);
4195
4196 genlmsg_end(msg, hdr);
134e6375 4197 err = genlmsg_reply(msg, info);
f130347c
LR		 4198 goto out;
4199
4200nla_put_failure:
4201 genlmsg_cancel(msg, hdr);
efe1cf0c 4202put_failure:
d080e275 4203 nlmsg_free(msg);
f130347c
LR		 4204 err = -EMSGSIZE;
4205out:
a1794390 4206 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4207 return err;
4208}
4209
b2e1b302
LR		 4210static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4211{
4212 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4213 struct nlattr *nl_reg_rule;
4214 char *alpha2 = NULL;
4215 int rem_reg_rules = 0, r = 0;
4216 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4217 u8 dfs_region = 0;
b2e1b302
LR		 4218 struct ieee80211_regdomain *rd = NULL;
4219
4220 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4221 return -EINVAL;
4222
4223 if (!info->attrs[NL80211_ATTR_REG_RULES])
4224 return -EINVAL;
4225
4226 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4227
8b60b078
LR		 4228 if (info->attrs[NL80211_ATTR_DFS_REGION])
4229 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4230
b2e1b302
LR		 4231 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4232 rem_reg_rules) {
4233 num_rules++;
4234 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4235 return -EINVAL;
b2e1b302
LR		 4236 }
4237
61405e97
LR		 4238 mutex_lock(&cfg80211_mutex);
4239
d0e18f83
LR		 4240 if (!reg_is_valid_request(alpha2)) {
4241 r = -EINVAL;
4242 goto bad_reg;
4243 }
b2e1b302
LR		 4244
4245 size_of_regd = sizeof(struct ieee80211_regdomain) +
4246 (num_rules * sizeof(struct ieee80211_reg_rule));
4247
4248 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 4249 if (!rd) {
4250 r = -ENOMEM;
4251 goto bad_reg;
4252 }
b2e1b302
LR		 4253
4254 rd->n_reg_rules = num_rules;
4255 rd->alpha2[0] = alpha2[0];
4256 rd->alpha2[1] = alpha2[1];
4257
8b60b078
LR		 4258 /*
4259 * Disable DFS master mode if the DFS region was
4260 * not supported or known on this kernel.
4261 */
4262 if (reg_supported_dfs_region(dfs_region))
4263 rd->dfs_region = dfs_region;
4264
b2e1b302
LR		 4265 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4266 rem_reg_rules) {
4267 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4268 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4269 reg_rule_policy);
4270 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4271 if (r)
4272 goto bad_reg;
4273
4274 rule_idx++;
4275
d0e18f83
LR		 4276 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4277 r = -EINVAL;
b2e1b302 4278 goto bad_reg;
d0e18f83 4279 }
b2e1b302
LR		 4280 }
4281
4282 BUG_ON(rule_idx != num_rules);
4283
b2e1b302 4284 r = set_regdom(rd);
61405e97 4285
a1794390 4286 mutex_unlock(&cfg80211_mutex);
d0e18f83 4287
b2e1b302
LR		 4288 return r;
4289
d2372b31 4290 bad_reg:
61405e97 4291 mutex_unlock(&cfg80211_mutex);
b2e1b302 4292 kfree(rd);
d0e18f83 4293 return r;
b2e1b302
LR		 4294}
4295
83f5e2cf
JB		 4296static int validate_scan_freqs(struct nlattr *freqs)
4297{
4298 struct nlattr *attr1, *attr2;
4299 int n_channels = 0, tmp1, tmp2;
4300
4301 nla_for_each_nested(attr1, freqs, tmp1) {
4302 n_channels++;
4303 /*
4304 * Some hardware has a limited channel list for
4305 * scanning, and it is pretty much nonsensical
4306 * to scan for a channel twice, so disallow that
4307 * and don't require drivers to check that the
4308 * channel list they get isn't longer than what
4309 * they can scan, as long as they can scan all
4310 * the channels they registered at once.
4311 */
4312 nla_for_each_nested(attr2, freqs, tmp2)
4313 if (attr1 != attr2 &&
4314 nla_get_u32(attr1) == nla_get_u32(attr2))
4315 return 0;
4316 }
4317
4318 return n_channels;
4319}
4320
2a519311
JB		 4321static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4322{
4c476991 4323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4324 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4325 struct cfg80211_scan_request *request;
2a519311
JB		 4326 struct nlattr *attr;
4327 struct wiphy *wiphy;
83f5e2cf 4328 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4329 size_t ie_len;
2a519311 4330
f4a11bb0
JB		 4331 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4332 return -EINVAL;
4333
79c97e97 4334 wiphy = &rdev->wiphy;
2a519311 4335
4c476991
JB		 4336 if (!rdev->ops->scan)
4337 return -EOPNOTSUPP;
2a519311 4338
4c476991
JB		 4339 if (rdev->scan_req)
4340 return -EBUSY;
2a519311
JB		 4341
4342 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4343 n_channels = validate_scan_freqs(
4344 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4345 if (!n_channels)
4346 return -EINVAL;
2a519311 4347 } else {
34850ab2 4348 enum ieee80211_band band;
83f5e2cf
JB		 4349 n_channels = 0;
4350
2a519311
JB		 4351 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4352 if (wiphy->bands[band])
4353 n_channels += wiphy->bands[band]->n_channels;
4354 }
4355
4356 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4357 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4358 n_ssids++;
4359
4c476991
JB		 4360 if (n_ssids > wiphy->max_scan_ssids)
4361 return -EINVAL;
2a519311 4362
70692ad2
JM		 4363 if (info->attrs[NL80211_ATTR_IE])
4364 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4365 else
4366 ie_len = 0;
4367
4c476991
JB		 4368 if (ie_len > wiphy->max_scan_ie_len)
4369 return -EINVAL;
18a83659 4370
2a519311 4371 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4372 + sizeof(*request->ssids) * n_ssids
4373 + sizeof(*request->channels) * n_channels
70692ad2 4374 + ie_len, GFP_KERNEL);
4c476991
JB		 4375 if (!request)
4376 return -ENOMEM;
2a519311 4377
2a519311 4378 if (n_ssids)
5ba63533 4379 request->ssids = (void *)&request->channels[n_channels];
2a519311 4380 request->n_ssids = n_ssids;
70692ad2
JM		 4381 if (ie_len) {
4382 if (request->ssids)
4383 request->ie = (void *)(request->ssids + n_ssids);
4384 else
4385 request->ie = (void *)(request->channels + n_channels);
4386 }
2a519311 4387
584991dc 4388 i = 0;
2a519311
JB		 4389 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4390 /* user specified, bail out if channel not found */
2a519311 4391 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4392 struct ieee80211_channel *chan;
4393
4394 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4395
4396 if (!chan) {
2a519311
JB		 4397 err = -EINVAL;
4398 goto out_free;
4399 }
584991dc
JB		 4400
4401 /* ignore disabled channels */
4402 if (chan->flags & IEEE80211_CHAN_DISABLED)
4403 continue;
4404
4405 request->channels[i] = chan;
2a519311
JB		 4406 i++;
4407 }
4408 } else {
34850ab2
JB		 4409 enum ieee80211_band band;
4410
2a519311 4411 /* all channels */
2a519311
JB		 4412 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4413 int j;
4414 if (!wiphy->bands[band])
4415 continue;
4416 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4417 struct ieee80211_channel *chan;
4418
4419 chan = &wiphy->bands[band]->channels[j];
4420
4421 if (chan->flags & IEEE80211_CHAN_DISABLED)
4422 continue;
4423
4424 request->channels[i] = chan;
2a519311
JB		 4425 i++;
4426 }
4427 }
4428 }
4429
584991dc
JB		 4430 if (!i) {
4431 err = -EINVAL;
4432 goto out_free;
4433 }
4434
4435 request->n_channels = i;
4436
2a519311
JB		 4437 i = 0;
4438 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4439 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4440 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4441 err = -EINVAL;
4442 goto out_free;
4443 }
57a27e1d 4444 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4445 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4446 i++;
4447 }
4448 }
4449
70692ad2
JM		 4450 if (info->attrs[NL80211_ATTR_IE]) {
4451 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4452 memcpy((void *)request->ie,
4453 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4454 request->ie_len);
4455 }
4456
34850ab2 4457 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4458 if (wiphy->bands[i])
4459 request->rates[i] =
4460 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4461
4462 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4463 nla_for_each_nested(attr,
4464 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4465 tmp) {
4466 enum ieee80211_band band = nla_type(attr);
4467
84404623 4468 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4469 err = -EINVAL;
4470 goto out_free;
4471 }
4472 err = ieee80211_get_ratemask(wiphy->bands[band],
4473 nla_data(attr),
4474 nla_len(attr),
4475 &request->rates[band]);
4476 if (err)
4477 goto out_free;
4478 }
4479 }
4480
46856bbf 4481 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4482 request->flags = nla_get_u32(
4483 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4484 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4485 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4486 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4487 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4488 err = -EOPNOTSUPP;
4489 goto out_free;
4490 }
4491 }
ed473771 4492
e9f935e3
RM		 4493 request->no_cck =
4494 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4495
fd014284 4496 request->wdev = wdev;
79c97e97 4497 request->wiphy = &rdev->wiphy;
15d6030b 4498 request->scan_start = jiffies;
2a519311 4499
79c97e97 4500 rdev->scan_req = request;
e35e4d28 4501 err = rdev_scan(rdev, request);
2a519311 4502
463d0183 4503 if (!err) {
fd014284
JB		 4504 nl80211_send_scan_start(rdev, wdev);
4505 if (wdev->netdev)
4506 dev_hold(wdev->netdev);
4c476991 4507 } else {
2a519311 4508 out_free:
79c97e97 4509 rdev->scan_req = NULL;
2a519311
JB		 4510 kfree(request);
4511 }
3b85875a 4512
2a519311
JB		 4513 return err;
4514}
4515
807f8a8c
LC		 4516static int nl80211_start_sched_scan(struct sk_buff *skb,
4517 struct genl_info *info)
4518{
4519 struct cfg80211_sched_scan_request *request;
4520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4521 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4522 struct nlattr *attr;
4523 struct wiphy *wiphy;
a1f1c21c 4524 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4525 u32 interval;
807f8a8c
LC		 4526 enum ieee80211_band band;
4527 size_t ie_len;
a1f1c21c 4528 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4529
4530 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4531 !rdev->ops->sched_scan_start)
4532 return -EOPNOTSUPP;
4533
4534 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4535 return -EINVAL;
4536
bbe6ad6d
LC		 4537 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4538 return -EINVAL;
4539
4540 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4541 if (interval == 0)
4542 return -EINVAL;
4543
807f8a8c
LC		 4544 wiphy = &rdev->wiphy;
4545
4546 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4547 n_channels = validate_scan_freqs(
4548 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4549 if (!n_channels)
4550 return -EINVAL;
4551 } else {
4552 n_channels = 0;
4553
4554 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4555 if (wiphy->bands[band])
4556 n_channels += wiphy->bands[band]->n_channels;
4557 }
4558
4559 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4560 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4561 tmp)
4562 n_ssids++;
4563
93b6aa69 4564 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4565 return -EINVAL;
4566
a1f1c21c
LC		 4567 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4568 nla_for_each_nested(attr,
4569 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4570 tmp)
4571 n_match_sets++;
4572
4573 if (n_match_sets > wiphy->max_match_sets)
4574 return -EINVAL;
4575
807f8a8c
LC		 4576 if (info->attrs[NL80211_ATTR_IE])
4577 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4578 else
4579 ie_len = 0;
4580
5a865bad 4581 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4582 return -EINVAL;
4583
c10841ca
LC		 4584 mutex_lock(&rdev->sched_scan_mtx);
4585
4586 if (rdev->sched_scan_req) {
4587 err = -EINPROGRESS;
4588 goto out;
4589 }
4590
807f8a8c 4591 request = kzalloc(sizeof(*request)
a2cd43c5 4592 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4593 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4594 + sizeof(*request->channels) * n_channels
807f8a8c 4595 + ie_len, GFP_KERNEL);
c10841ca
LC		 4596 if (!request) {
4597 err = -ENOMEM;
4598 goto out;
4599 }
807f8a8c
LC		 4600
4601 if (n_ssids)
4602 request->ssids = (void *)&request->channels[n_channels];
4603 request->n_ssids = n_ssids;
4604 if (ie_len) {
4605 if (request->ssids)
4606 request->ie = (void *)(request->ssids + n_ssids);
4607 else
4608 request->ie = (void *)(request->channels + n_channels);
4609 }
4610
a1f1c21c
LC		 4611 if (n_match_sets) {
4612 if (request->ie)
4613 request->match_sets = (void *)(request->ie + ie_len);
4614 else if (request->ssids)
4615 request->match_sets =
4616 (void *)(request->ssids + n_ssids);
4617 else
4618 request->match_sets =
4619 (void *)(request->channels + n_channels);
4620 }
4621 request->n_match_sets = n_match_sets;
4622
807f8a8c
LC		 4623 i = 0;
4624 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4625 /* user specified, bail out if channel not found */
4626 nla_for_each_nested(attr,
4627 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4628 tmp) {
4629 struct ieee80211_channel *chan;
4630
4631 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4632
4633 if (!chan) {
4634 err = -EINVAL;
4635 goto out_free;
4636 }
4637
4638 /* ignore disabled channels */
4639 if (chan->flags & IEEE80211_CHAN_DISABLED)
4640 continue;
4641
4642 request->channels[i] = chan;
4643 i++;
4644 }
4645 } else {
4646 /* all channels */
4647 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4648 int j;
4649 if (!wiphy->bands[band])
4650 continue;
4651 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4652 struct ieee80211_channel *chan;
4653
4654 chan = &wiphy->bands[band]->channels[j];
4655
4656 if (chan->flags & IEEE80211_CHAN_DISABLED)
4657 continue;
4658
4659 request->channels[i] = chan;
4660 i++;
4661 }
4662 }
4663 }
4664
4665 if (!i) {
4666 err = -EINVAL;
4667 goto out_free;
4668 }
4669
4670 request->n_channels = i;
4671
4672 i = 0;
4673 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4674 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4675 tmp) {
57a27e1d 4676 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4677 err = -EINVAL;
4678 goto out_free;
4679 }
57a27e1d 4680 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4681 memcpy(request->ssids[i].ssid, nla_data(attr),
4682 nla_len(attr));
807f8a8c
LC		 4683 i++;
4684 }
4685 }
4686
a1f1c21c
LC		 4687 i = 0;
4688 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4689 nla_for_each_nested(attr,
4690 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4691 tmp) {
88e920b4 4692 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4693
4694 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4695 nla_data(attr), nla_len(attr),
4696 nl80211_match_policy);
4a4ab0d7 4697 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4698 if (ssid) {
4699 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4700 err = -EINVAL;
4701 goto out_free;
4702 }
4703 memcpy(request->match_sets[i].ssid.ssid,
4704 nla_data(ssid), nla_len(ssid));
4705 request->match_sets[i].ssid.ssid_len =
4706 nla_len(ssid);
4707 }
88e920b4
TP		 4708 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4709 if (rssi)
4710 request->rssi_thold = nla_get_u32(rssi);
4711 else
4712 request->rssi_thold =
4713 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4714 i++;
4715 }
4716 }
4717
807f8a8c
LC		 4718 if (info->attrs[NL80211_ATTR_IE]) {
4719 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4720 memcpy((void *)request->ie,
4721 nla_data(info->attrs[NL80211_ATTR_IE]),
4722 request->ie_len);
4723 }
4724
46856bbf 4725 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4726 request->flags = nla_get_u32(
4727 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4728 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4729 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4730 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4731 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4732 err = -EOPNOTSUPP;
4733 goto out_free;
4734 }
4735 }
ed473771 4736
807f8a8c
LC		 4737 request->dev = dev;
4738 request->wiphy = &rdev->wiphy;
bbe6ad6d 4739 request->interval = interval;
15d6030b 4740 request->scan_start = jiffies;
807f8a8c 4741
e35e4d28 4742 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 4743 if (!err) {
4744 rdev->sched_scan_req = request;
4745 nl80211_send_sched_scan(rdev, dev,
4746 NL80211_CMD_START_SCHED_SCAN);
4747 goto out;
4748 }
4749
4750out_free:
4751 kfree(request);
4752out:
c10841ca 4753 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4754 return err;
4755}
4756
4757static int nl80211_stop_sched_scan(struct sk_buff *skb,
4758 struct genl_info *info)
4759{
4760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4761 int err;
807f8a8c
LC		 4762
4763 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4764 !rdev->ops->sched_scan_stop)
4765 return -EOPNOTSUPP;
4766
c10841ca
LC		 4767 mutex_lock(&rdev->sched_scan_mtx);
4768 err = __cfg80211_stop_sched_scan(rdev, false);
4769 mutex_unlock(&rdev->sched_scan_mtx);
4770
4771 return err;
807f8a8c
LC		 4772}
4773
9720bb3a
JB		 4774static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4775 u32 seq, int flags,
2a519311 4776 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4777 struct wireless_dev *wdev,
4778 struct cfg80211_internal_bss *intbss)
2a519311 4779{
48ab905d 4780 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4781 void *hdr;
4782 struct nlattr *bss;
48ab905d
JB		 4783
4784 ASSERT_WDEV_LOCK(wdev);
2a519311 4785
15e47304 4786 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 4787 NL80211_CMD_NEW_SCAN_RESULTS);
4788 if (!hdr)
4789 return -1;
4790
9720bb3a
JB		 4791 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4792
9360ffd1
DM		 4793 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4794 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4795 goto nla_put_failure;
2a519311
JB		 4796
4797 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4798 if (!bss)
4799 goto nla_put_failure;
9360ffd1
DM		 4800 if ((!is_zero_ether_addr(res->bssid) &&
4801 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4802 (res->information_elements && res->len_information_elements &&
4803 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4804 res->len_information_elements,
4805 res->information_elements)) ||
4806 (res->beacon_ies && res->len_beacon_ies &&
4807 res->beacon_ies != res->information_elements &&
4808 nla_put(msg, NL80211_BSS_BEACON_IES,
4809 res->len_beacon_ies, res->beacon_ies)))
4810 goto nla_put_failure;
4811 if (res->tsf &&
4812 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4813 goto nla_put_failure;
4814 if (res->beacon_interval &&
4815 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4816 goto nla_put_failure;
4817 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4818 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4819 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4820 jiffies_to_msecs(jiffies - intbss->ts)))
4821 goto nla_put_failure;
2a519311 4822
77965c97 4823 switch (rdev->wiphy.signal_type) {
2a519311 4824 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4825 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4826 goto nla_put_failure;
2a519311
JB		 4827 break;
4828 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4829 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4830 goto nla_put_failure;
2a519311
JB		 4831 break;
4832 default:
4833 break;
4834 }
4835
48ab905d 4836 switch (wdev->iftype) {
074ac8df 4837 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4838 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4839 if (intbss == wdev->current_bss &&
4840 nla_put_u32(msg, NL80211_BSS_STATUS,
4841 NL80211_BSS_STATUS_ASSOCIATED))
4842 goto nla_put_failure;
48ab905d
JB		 4843 break;
4844 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4845 if (intbss == wdev->current_bss &&
4846 nla_put_u32(msg, NL80211_BSS_STATUS,
4847 NL80211_BSS_STATUS_IBSS_JOINED))
4848 goto nla_put_failure;
48ab905d
JB		 4849 break;
4850 default:
4851 break;
4852 }
4853
2a519311
JB		 4854 nla_nest_end(msg, bss);
4855
4856 return genlmsg_end(msg, hdr);
4857
4858 nla_put_failure:
4859 genlmsg_cancel(msg, hdr);
4860 return -EMSGSIZE;
4861}
4862
4863static int nl80211_dump_scan(struct sk_buff *skb,
4864 struct netlink_callback *cb)
4865{
48ab905d
JB		 4866 struct cfg80211_registered_device *rdev;
4867 struct net_device *dev;
2a519311 4868 struct cfg80211_internal_bss *scan;
48ab905d 4869 struct wireless_dev *wdev;
2a519311
JB		 4870 int start = cb->args[1], idx = 0;
4871 int err;
4872
67748893
JB		 4873 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4874 if (err)
4875 return err;
2a519311 4876
48ab905d 4877 wdev = dev->ieee80211_ptr;
2a519311 4878
48ab905d
JB		 4879 wdev_lock(wdev);
4880 spin_lock_bh(&rdev->bss_lock);
4881 cfg80211_bss_expire(rdev);
4882
9720bb3a
JB		 4883 cb->seq = rdev->bss_generation;
4884
48ab905d 4885 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4886 if (++idx <= start)
4887 continue;
9720bb3a 4888 if (nl80211_send_bss(skb, cb,
2a519311 4889 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4890 rdev, wdev, scan) < 0) {
2a519311 4891 idx--;
67748893 4892 break;
2a519311
JB		 4893 }
4894 }
4895
48ab905d
JB		 4896 spin_unlock_bh(&rdev->bss_lock);
4897 wdev_unlock(wdev);
2a519311
JB		 4898
4899 cb->args[1] = idx;
67748893 4900 nl80211_finish_netdev_dump(rdev);
2a519311 4901
67748893 4902 return skb->len;
2a519311
JB		 4903}
4904
15e47304 4905static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 4906 int flags, struct net_device *dev,
4907 struct survey_info *survey)
4908{
4909 void *hdr;
4910 struct nlattr *infoattr;
4911
15e47304 4912 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 4913 NL80211_CMD_NEW_SURVEY_RESULTS);
4914 if (!hdr)
4915 return -ENOMEM;
4916
9360ffd1
DM		 4917 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4918 goto nla_put_failure;
61fa713c
HS		 4919
4920 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4921 if (!infoattr)
4922 goto nla_put_failure;
4923
9360ffd1
DM		 4924 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4925 survey->channel->center_freq))
4926 goto nla_put_failure;
4927
4928 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4929 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4930 goto nla_put_failure;
4931 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4932 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4933 goto nla_put_failure;
4934 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4935 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4936 survey->channel_time))
4937 goto nla_put_failure;
4938 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4939 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4940 survey->channel_time_busy))
4941 goto nla_put_failure;
4942 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4943 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4944 survey->channel_time_ext_busy))
4945 goto nla_put_failure;
4946 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4947 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4948 survey->channel_time_rx))
4949 goto nla_put_failure;
4950 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4951 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4952 survey->channel_time_tx))
4953 goto nla_put_failure;
61fa713c
HS		 4954
4955 nla_nest_end(msg, infoattr);
4956
4957 return genlmsg_end(msg, hdr);
4958
4959 nla_put_failure:
4960 genlmsg_cancel(msg, hdr);
4961 return -EMSGSIZE;
4962}
4963
4964static int nl80211_dump_survey(struct sk_buff *skb,
4965 struct netlink_callback *cb)
4966{
4967 struct survey_info survey;
4968 struct cfg80211_registered_device *dev;
4969 struct net_device *netdev;
61fa713c
HS		 4970 int survey_idx = cb->args[1];
4971 int res;
4972
67748893
JB		 4973 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4974 if (res)
4975 return res;
61fa713c
HS		 4976
4977 if (!dev->ops->dump_survey) {
4978 res = -EOPNOTSUPP;
4979 goto out_err;
4980 }
4981
4982 while (1) {
180cdc79
LR		 4983 struct ieee80211_channel *chan;
4984
e35e4d28 4985 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 4986 if (res == -ENOENT)
4987 break;
4988 if (res)
4989 goto out_err;
4990
180cdc79
LR		 4991 /* Survey without a channel doesn't make sense */
4992 if (!survey.channel) {
4993 res = -EINVAL;
4994 goto out;
4995 }
4996
4997 chan = ieee80211_get_channel(&dev->wiphy,
4998 survey.channel->center_freq);
4999 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5000 survey_idx++;
5001 continue;
5002 }
5003
61fa713c 5004 if (nl80211_send_survey(skb,
15e47304 5005 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5006 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5007 netdev,
5008 &survey) < 0)
5009 goto out;
5010 survey_idx++;
5011 }
5012
5013 out:
5014 cb->args[1] = survey_idx;
5015 res = skb->len;
5016 out_err:
67748893 5017 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5018 return res;
5019}
5020
b23aa676
SO		 5021static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5022{
5023 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5024 NL80211_WPA_VERSION_2));
5025}
5026
636a5d36
JM		 5027static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5028{
4c476991
JB		 5029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5030 struct net_device *dev = info->user_ptr[1];
19957bb3 5031 struct ieee80211_channel *chan;
e39e5b5e
JM		 5032 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5033 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5034 enum nl80211_auth_type auth_type;
fffd0934 5035 struct key_parse key;
d5cdfacb 5036 bool local_state_change;
636a5d36 5037
f4a11bb0
JB		 5038 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5039 return -EINVAL;
5040
5041 if (!info->attrs[NL80211_ATTR_MAC])
5042 return -EINVAL;
5043
1778092e
JM		 5044 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5045 return -EINVAL;
5046
19957bb3
JB		 5047 if (!info->attrs[NL80211_ATTR_SSID])
5048 return -EINVAL;
5049
5050 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5051 return -EINVAL;
5052
fffd0934
JB		 5053 err = nl80211_parse_key(info, &key);
5054 if (err)
5055 return err;
5056
5057 if (key.idx >= 0) {
e31b8213
JB		 5058 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5059 return -EINVAL;
fffd0934
JB		 5060 if (!key.p.key || !key.p.key_len)
5061 return -EINVAL;
5062 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5063 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5064 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5065 key.p.key_len != WLAN_KEY_LEN_WEP104))
5066 return -EINVAL;
5067 if (key.idx > 4)
5068 return -EINVAL;
5069 } else {
5070 key.p.key_len = 0;
5071 key.p.key = NULL;
5072 }
5073
afea0b7a
JB		 5074 if (key.idx >= 0) {
5075 int i;
5076 bool ok = false;
5077 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5078 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5079 ok = true;
5080 break;
5081 }
5082 }
4c476991
JB		 5083 if (!ok)
5084 return -EINVAL;
afea0b7a
JB		 5085 }
5086
4c476991
JB		 5087 if (!rdev->ops->auth)
5088 return -EOPNOTSUPP;
636a5d36 5089
074ac8df 5090 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5091 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5092 return -EOPNOTSUPP;
eec60b03 5093
19957bb3 5094 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5095 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5096 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5097 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5098 return -EINVAL;
636a5d36 5099
19957bb3
JB		 5100 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5101 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5102
5103 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5104 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5105 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5106 }
5107
19957bb3 5108 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5109 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5110 return -EINVAL;
636a5d36 5111
e39e5b5e
JM		 5112 if (auth_type == NL80211_AUTHTYPE_SAE &&
5113 !info->attrs[NL80211_ATTR_SAE_DATA])
5114 return -EINVAL;
5115
5116 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5117 if (auth_type != NL80211_AUTHTYPE_SAE)
5118 return -EINVAL;
5119 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5120 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5121 /* need to include at least Auth Transaction and Status Code */
5122 if (sae_data_len < 4)
5123 return -EINVAL;
5124 }
5125
d5cdfacb
JM		 5126 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5127
95de817b
JB		 5128 /*
5129 * Since we no longer track auth state, ignore
5130 * requests to only change local state.
5131 */
5132 if (local_state_change)
5133 return 0;
5134
4c476991
JB		 5135 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5136 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5137 key.p.key, key.p.key_len, key.idx,
5138 sae_data, sae_data_len);
636a5d36
JM		 5139}
5140
c0692b8f
JB		 5141static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5142 struct genl_info *info,
3dc27d25
JB		 5143 struct cfg80211_crypto_settings *settings,
5144 int cipher_limit)
b23aa676 5145{
c0b2bbd8
JB		 5146 memset(settings, 0, sizeof(*settings));
5147
b23aa676
SO		 5148 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5149
c0692b8f
JB		 5150 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5151 u16 proto;
5152 proto = nla_get_u16(
5153 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5154 settings->control_port_ethertype = cpu_to_be16(proto);
5155 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5156 proto != ETH_P_PAE)
5157 return -EINVAL;
5158 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5159 settings->control_port_no_encrypt = true;
5160 } else
5161 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5162
b23aa676
SO		 5163 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5164 void *data;
5165 int len, i;
5166
5167 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5168 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5169 settings->n_ciphers_pairwise = len / sizeof(u32);
5170
5171 if (len % sizeof(u32))
5172 return -EINVAL;
5173
3dc27d25 5174 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5175 return -EINVAL;
5176
5177 memcpy(settings->ciphers_pairwise, data, len);
5178
5179 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5180 if (!cfg80211_supported_cipher_suite(
5181 &rdev->wiphy,
b23aa676
SO		 5182 settings->ciphers_pairwise[i]))
5183 return -EINVAL;
5184 }
5185
5186 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5187 settings->cipher_group =
5188 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5189 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5190 settings->cipher_group))
b23aa676
SO		 5191 return -EINVAL;
5192 }
5193
5194 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5195 settings->wpa_versions =
5196 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5197 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5198 return -EINVAL;
5199 }
5200
5201 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5202 void *data;
6d30240e 5203 int len;
b23aa676
SO		 5204
5205 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5206 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5207 settings->n_akm_suites = len / sizeof(u32);
5208
5209 if (len % sizeof(u32))
5210 return -EINVAL;
5211
1b9ca027
JM		 5212 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5213 return -EINVAL;
5214
b23aa676 5215 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5216 }
5217
5218 return 0;
5219}
5220
636a5d36
JM		 5221static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5222{
4c476991
JB		 5223 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5224 struct net_device *dev = info->user_ptr[1];
19957bb3 5225 struct cfg80211_crypto_settings crypto;
f444de05 5226 struct ieee80211_channel *chan;
3e5d7649 5227 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5228 int err, ssid_len, ie_len = 0;
5229 bool use_mfp = false;
7e7c8926
BG		 5230 u32 flags = 0;
5231 struct ieee80211_ht_cap *ht_capa = NULL;
5232 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5233
f4a11bb0
JB		 5234 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5235 return -EINVAL;
5236
5237 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5238 !info->attrs[NL80211_ATTR_SSID] ||
5239 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5240 return -EINVAL;
5241
4c476991
JB		 5242 if (!rdev->ops->assoc)
5243 return -EOPNOTSUPP;
636a5d36 5244
074ac8df 5245 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5246 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5247 return -EOPNOTSUPP;
eec60b03 5248
19957bb3 5249 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5250
19957bb3
JB		 5251 chan = ieee80211_get_channel(&rdev->wiphy,
5252 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5253 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5254 return -EINVAL;
636a5d36 5255
19957bb3
JB		 5256 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5257 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5258
5259 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5260 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5261 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5262 }
5263
dc6382ce 5264 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5265 enum nl80211_mfp mfp =
dc6382ce 5266 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5267 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5268 use_mfp = true;
4c476991
JB		 5269 else if (mfp != NL80211_MFP_NO)
5270 return -EINVAL;
dc6382ce
JM		 5271 }
5272
3e5d7649
JB		 5273 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5274 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5275
7e7c8926
BG		 5276 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5277 flags |= ASSOC_REQ_DISABLE_HT;
5278
5279 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5280 ht_capa_mask =
5281 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5282
5283 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5284 if (!ht_capa_mask)
5285 return -EINVAL;
5286 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5287 }
5288
c0692b8f 5289 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5290 if (!err)
3e5d7649
JB		 5291 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5292 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5293 &crypto, flags, ht_capa,
5294 ht_capa_mask);
636a5d36 5295
636a5d36
JM		 5296 return err;
5297}
5298
5299static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5300{
4c476991
JB		 5301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5302 struct net_device *dev = info->user_ptr[1];
19957bb3 5303 const u8 *ie = NULL, *bssid;
4c476991 5304 int ie_len = 0;
19957bb3 5305 u16 reason_code;
d5cdfacb 5306 bool local_state_change;
636a5d36 5307
f4a11bb0
JB		 5308 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5309 return -EINVAL;
5310
5311 if (!info->attrs[NL80211_ATTR_MAC])
5312 return -EINVAL;
5313
5314 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5315 return -EINVAL;
5316
4c476991
JB		 5317 if (!rdev->ops->deauth)
5318 return -EOPNOTSUPP;
636a5d36 5319
074ac8df 5320 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5321 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5322 return -EOPNOTSUPP;
eec60b03 5323
19957bb3 5324 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5325
19957bb3
JB		 5326 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5327 if (reason_code == 0) {
f4a11bb0 5328 /* Reason Code 0 is reserved */
4c476991 5329 return -EINVAL;
255e737e 5330 }
636a5d36
JM		 5331
5332 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5333 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5334 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5335 }
5336
d5cdfacb
JM		 5337 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5338
4c476991
JB		 5339 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5340 local_state_change);
636a5d36
JM		 5341}
5342
5343static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5344{
4c476991
JB		 5345 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5346 struct net_device *dev = info->user_ptr[1];
19957bb3 5347 const u8 *ie = NULL, *bssid;
4c476991 5348 int ie_len = 0;
19957bb3 5349 u16 reason_code;
d5cdfacb 5350 bool local_state_change;
636a5d36 5351
f4a11bb0
JB		 5352 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5353 return -EINVAL;
5354
5355 if (!info->attrs[NL80211_ATTR_MAC])
5356 return -EINVAL;
5357
5358 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5359 return -EINVAL;
5360
4c476991
JB		 5361 if (!rdev->ops->disassoc)
5362 return -EOPNOTSUPP;
636a5d36 5363
074ac8df 5364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5366 return -EOPNOTSUPP;
eec60b03 5367
19957bb3 5368 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5369
19957bb3
JB		 5370 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5371 if (reason_code == 0) {
f4a11bb0 5372 /* Reason Code 0 is reserved */
4c476991 5373 return -EINVAL;
255e737e 5374 }
636a5d36
JM		 5375
5376 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5377 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5378 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5379 }
5380
d5cdfacb
JM		 5381 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5382
4c476991
JB		 5383 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5384 local_state_change);
636a5d36
JM		 5385}
5386
dd5b4cc7
FF		 5387static bool
5388nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5389 int mcast_rate[IEEE80211_NUM_BANDS],
5390 int rateval)
5391{
5392 struct wiphy *wiphy = &rdev->wiphy;
5393 bool found = false;
5394 int band, i;
5395
5396 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5397 struct ieee80211_supported_band *sband;
5398
5399 sband = wiphy->bands[band];
5400 if (!sband)
5401 continue;
5402
5403 for (i = 0; i < sband->n_bitrates; i++) {
5404 if (sband->bitrates[i].bitrate == rateval) {
5405 mcast_rate[band] = i + 1;
5406 found = true;
5407 break;
5408 }
5409 }
5410 }
5411
5412 return found;
5413}
5414
04a773ad
JB		 5415static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5416{
4c476991
JB		 5417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5418 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5419 struct cfg80211_ibss_params ibss;
5420 struct wiphy *wiphy;
fffd0934 5421 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5422 int err;
5423
8e30bc55
JB		 5424 memset(&ibss, 0, sizeof(ibss));
5425
04a773ad
JB		 5426 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5427 return -EINVAL;
5428
683b6d3b 5429 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 5430 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5431 return -EINVAL;
5432
8e30bc55
JB		 5433 ibss.beacon_interval = 100;
5434
5435 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5436 ibss.beacon_interval =
5437 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5438 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5439 return -EINVAL;
5440 }
5441
4c476991
JB		 5442 if (!rdev->ops->join_ibss)
5443 return -EOPNOTSUPP;
04a773ad 5444
4c476991
JB		 5445 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5446 return -EOPNOTSUPP;
04a773ad 5447
79c97e97 5448 wiphy = &rdev->wiphy;
04a773ad 5449
39193498 5450 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5451 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5452
5453 if (!is_valid_ether_addr(ibss.bssid))
5454 return -EINVAL;
5455 }
04a773ad
JB		 5456 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5457 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5458
5459 if (info->attrs[NL80211_ATTR_IE]) {
5460 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5461 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5462 }
5463
683b6d3b
JB		 5464 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5465 if (err)
5466 return err;
04a773ad 5467
683b6d3b 5468 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 5469 return -EINVAL;
5470
db9c64cf
JB		 5471 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5472 return -EINVAL;
5473 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5474 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
5475
04a773ad 5476 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5477 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5478
fbd2c8dc
TP		 5479 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5480 u8 *rates =
5481 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5482 int n_rates =
5483 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5484 struct ieee80211_supported_band *sband =
683b6d3b 5485 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 5486
34850ab2
JB		 5487 err = ieee80211_get_ratemask(sband, rates, n_rates,
5488 &ibss.basic_rates);
5489 if (err)
5490 return err;
fbd2c8dc 5491 }
dd5b4cc7
FF		 5492
5493 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5494 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5495 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5496 return -EINVAL;
fbd2c8dc 5497
4c476991 5498 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 5499 bool no_ht = false;
5500
4c476991 5501 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 5502 info->attrs[NL80211_ATTR_KEYS],
5503 &no_ht);
4c476991
JB		 5504 if (IS_ERR(connkeys))
5505 return PTR_ERR(connkeys);
de7044ee 5506
3d9d1d66
JB		 5507 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5508 no_ht) {
de7044ee
SM		 5509 kfree(connkeys);
5510 return -EINVAL;
5511 }
4c476991 5512 }
04a773ad 5513
267335d6
AQ		 5514 ibss.control_port =
5515 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5516
4c476991 5517 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5518 if (err)
5519 kfree(connkeys);
04a773ad
JB		 5520 return err;
5521}
5522
5523static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5524{
4c476991
JB		 5525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5526 struct net_device *dev = info->user_ptr[1];
04a773ad 5527
4c476991
JB		 5528 if (!rdev->ops->leave_ibss)
5529 return -EOPNOTSUPP;
04a773ad 5530
4c476991
JB		 5531 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5532 return -EOPNOTSUPP;
04a773ad 5533
4c476991 5534 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5535}
5536
f4e583c8
AQ		 5537static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5538{
5539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5540 struct net_device *dev = info->user_ptr[1];
5541 int mcast_rate[IEEE80211_NUM_BANDS];
5542 u32 nla_rate;
5543 int err;
5544
5545 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5546 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5547 return -EOPNOTSUPP;
5548
5549 if (!rdev->ops->set_mcast_rate)
5550 return -EOPNOTSUPP;
5551
5552 memset(mcast_rate, 0, sizeof(mcast_rate));
5553
5554 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5555 return -EINVAL;
5556
5557 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5558 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5559 return -EINVAL;
5560
5561 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5562
5563 return err;
5564}
5565
5566
aff89a9b
JB		 5567#ifdef CONFIG_NL80211_TESTMODE
5568static struct genl_multicast_group nl80211_testmode_mcgrp = {
5569 .name = "testmode",
5570};
5571
5572static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5573{
4c476991 5574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5575 int err;
5576
5577 if (!info->attrs[NL80211_ATTR_TESTDATA])
5578 return -EINVAL;
5579
aff89a9b
JB		 5580 err = -EOPNOTSUPP;
5581 if (rdev->ops->testmode_cmd) {
5582 rdev->testmode_info = info;
e35e4d28 5583 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 5584 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5585 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5586 rdev->testmode_info = NULL;
5587 }
5588
aff89a9b
JB		 5589 return err;
5590}
5591
71063f0e
WYG		 5592static int nl80211_testmode_dump(struct sk_buff *skb,
5593 struct netlink_callback *cb)
5594{
00918d33 5595 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5596 int err;
5597 long phy_idx;
5598 void *data = NULL;
5599 int data_len = 0;
5600
5601 if (cb->args[0]) {
5602 /*
5603 * 0 is a valid index, but not valid for args[0],
5604 * so we need to offset by 1.
5605 */
5606 phy_idx = cb->args[0] - 1;
5607 } else {
5608 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5609 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5610 nl80211_policy);
5611 if (err)
5612 return err;
00918d33 5613
2bd7e35d
JB		 5614 mutex_lock(&cfg80211_mutex);
5615 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5616 nl80211_fam.attrbuf);
5617 if (IS_ERR(rdev)) {
5618 mutex_unlock(&cfg80211_mutex);
5619 return PTR_ERR(rdev);
00918d33 5620 }
2bd7e35d
JB		 5621 phy_idx = rdev->wiphy_idx;
5622 rdev = NULL;
5623 mutex_unlock(&cfg80211_mutex);
5624
71063f0e
WYG		 5625 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5626 cb->args[1] =
5627 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5628 }
5629
5630 if (cb->args[1]) {
5631 data = nla_data((void *)cb->args[1]);
5632 data_len = nla_len((void *)cb->args[1]);
5633 }
5634
5635 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5636 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5637 if (!rdev) {
71063f0e
WYG		 5638 mutex_unlock(&cfg80211_mutex);
5639 return -ENOENT;
5640 }
00918d33 5641 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5642 mutex_unlock(&cfg80211_mutex);
5643
00918d33 5644 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5645 err = -EOPNOTSUPP;
5646 goto out_err;
5647 }
5648
5649 while (1) {
15e47304 5650 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 5651 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5652 NL80211_CMD_TESTMODE);
5653 struct nlattr *tmdata;
5654
9360ffd1 5655 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5656 genlmsg_cancel(skb, hdr);
5657 break;
5658 }
5659
5660 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5661 if (!tmdata) {
5662 genlmsg_cancel(skb, hdr);
5663 break;
5664 }
e35e4d28 5665 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 5666 nla_nest_end(skb, tmdata);
5667
5668 if (err == -ENOBUFS || err == -ENOENT) {
5669 genlmsg_cancel(skb, hdr);
5670 break;
5671 } else if (err) {
5672 genlmsg_cancel(skb, hdr);
5673 goto out_err;
5674 }
5675
5676 genlmsg_end(skb, hdr);
5677 }
5678
5679 err = skb->len;
5680 /* see above */
5681 cb->args[0] = phy_idx + 1;
5682 out_err:
00918d33 5683 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5684 return err;
5685}
5686
aff89a9b
JB		 5687static struct sk_buff *
5688__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 5689 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 5690{
5691 struct sk_buff *skb;
5692 void *hdr;
5693 struct nlattr *data;
5694
5695 skb = nlmsg_new(approxlen + 100, gfp);
5696 if (!skb)
5697 return NULL;
5698
15e47304 5699 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 5700 if (!hdr) {
5701 kfree_skb(skb);
5702 return NULL;
5703 }
5704
9360ffd1
DM		 5705 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5706 goto nla_put_failure;
aff89a9b
JB		 5707 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5708
5709 ((void **)skb->cb)[0] = rdev;
5710 ((void **)skb->cb)[1] = hdr;
5711 ((void **)skb->cb)[2] = data;
5712
5713 return skb;
5714
5715 nla_put_failure:
5716 kfree_skb(skb);
5717 return NULL;
5718}
5719
5720struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5721 int approxlen)
5722{
5723 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5724
5725 if (WARN_ON(!rdev->testmode_info))
5726 return NULL;
5727
5728 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 5729 rdev->testmode_info->snd_portid,
aff89a9b
JB		 5730 rdev->testmode_info->snd_seq,
5731 GFP_KERNEL);
5732}
5733EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5734
5735int cfg80211_testmode_reply(struct sk_buff *skb)
5736{
5737 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5738 void *hdr = ((void **)skb->cb)[1];
5739 struct nlattr *data = ((void **)skb->cb)[2];
5740
5741 if (WARN_ON(!rdev->testmode_info)) {
5742 kfree_skb(skb);
5743 return -EINVAL;
5744 }
5745
5746 nla_nest_end(skb, data);
5747 genlmsg_end(skb, hdr);
5748 return genlmsg_reply(skb, rdev->testmode_info);
5749}
5750EXPORT_SYMBOL(cfg80211_testmode_reply);
5751
5752struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5753 int approxlen, gfp_t gfp)
5754{
5755 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5756
5757 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5758}
5759EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5760
5761void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5762{
5763 void *hdr = ((void **)skb->cb)[1];
5764 struct nlattr *data = ((void **)skb->cb)[2];
5765
5766 nla_nest_end(skb, data);
5767 genlmsg_end(skb, hdr);
5768 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5769}
5770EXPORT_SYMBOL(cfg80211_testmode_event);
5771#endif
5772
b23aa676
SO		 5773static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5774{
4c476991
JB		 5775 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5776 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5777 struct cfg80211_connect_params connect;
5778 struct wiphy *wiphy;
fffd0934 5779 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5780 int err;
5781
5782 memset(&connect, 0, sizeof(connect));
5783
5784 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5785 return -EINVAL;
5786
5787 if (!info->attrs[NL80211_ATTR_SSID] ||
5788 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5789 return -EINVAL;
5790
5791 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5792 connect.auth_type =
5793 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 5794 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5795 NL80211_CMD_CONNECT))
b23aa676
SO		 5796 return -EINVAL;
5797 } else
5798 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5799
5800 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5801
c0692b8f 5802 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5803 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5804 if (err)
5805 return err;
b23aa676 5806
074ac8df 5807 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5808 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5809 return -EOPNOTSUPP;
b23aa676 5810
79c97e97 5811 wiphy = &rdev->wiphy;
b23aa676 5812
4486ea98
BS		 5813 connect.bg_scan_period = -1;
5814 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5815 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5816 connect.bg_scan_period =
5817 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5818 }
5819
b23aa676
SO		 5820 if (info->attrs[NL80211_ATTR_MAC])
5821 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5822 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5823 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5824
5825 if (info->attrs[NL80211_ATTR_IE]) {
5826 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5827 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5828 }
5829
5830 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5831 connect.channel =
5832 ieee80211_get_channel(wiphy,
5833 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5834 if (!connect.channel ||
4c476991
JB		 5835 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5836 return -EINVAL;
b23aa676
SO		 5837 }
5838
fffd0934
JB		 5839 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5840 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 5841 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 5842 if (IS_ERR(connkeys))
5843 return PTR_ERR(connkeys);
fffd0934
JB		 5844 }
5845
7e7c8926
BG		 5846 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5847 connect.flags |= ASSOC_REQ_DISABLE_HT;
5848
5849 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5850 memcpy(&connect.ht_capa_mask,
5851 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5852 sizeof(connect.ht_capa_mask));
5853
5854 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 5855 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5856 kfree(connkeys);
7e7c8926 5857 return -EINVAL;
b4e4f47e 5858 }
7e7c8926
BG		 5859 memcpy(&connect.ht_capa,
5860 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5861 sizeof(connect.ht_capa));
5862 }
5863
fffd0934 5864 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5865 if (err)
5866 kfree(connkeys);
b23aa676
SO		 5867 return err;
5868}
5869
5870static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5871{
4c476991
JB		 5872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5873 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5874 u16 reason;
5875
5876 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5877 reason = WLAN_REASON_DEAUTH_LEAVING;
5878 else
5879 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5880
5881 if (reason == 0)
5882 return -EINVAL;
5883
074ac8df 5884 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5885 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5886 return -EOPNOTSUPP;
b23aa676 5887
4c476991 5888 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5889}
5890
463d0183
JB		 5891static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5892{
4c476991 5893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5894 struct net *net;
5895 int err;
5896 u32 pid;
5897
5898 if (!info->attrs[NL80211_ATTR_PID])
5899 return -EINVAL;
5900
5901 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5902
463d0183 5903 net = get_net_ns_by_pid(pid);
4c476991
JB		 5904 if (IS_ERR(net))
5905 return PTR_ERR(net);
463d0183
JB		 5906
5907 err = 0;
5908
5909 /* check if anything to do */
4c476991
JB		 5910 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5911 err = cfg80211_switch_netns(rdev, net);
463d0183 5912
463d0183 5913 put_net(net);
463d0183
JB		 5914 return err;
5915}
5916
67fbb16b
SO		 5917static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5918{
4c476991 5919 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5920 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5921 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5922 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5923 struct cfg80211_pmksa pmksa;
5924
5925 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5926
5927 if (!info->attrs[NL80211_ATTR_MAC])
5928 return -EINVAL;
5929
5930 if (!info->attrs[NL80211_ATTR_PMKID])
5931 return -EINVAL;
5932
67fbb16b
SO		 5933 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5934 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5935
074ac8df 5936 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5937 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5938 return -EOPNOTSUPP;
67fbb16b
SO		 5939
5940 switch (info->genlhdr->cmd) {
5941 case NL80211_CMD_SET_PMKSA:
5942 rdev_ops = rdev->ops->set_pmksa;
5943 break;
5944 case NL80211_CMD_DEL_PMKSA:
5945 rdev_ops = rdev->ops->del_pmksa;
5946 break;
5947 default:
5948 WARN_ON(1);
5949 break;
5950 }
5951
4c476991
JB		 5952 if (!rdev_ops)
5953 return -EOPNOTSUPP;
67fbb16b 5954
4c476991 5955 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5956}
5957
5958static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5959{
4c476991
JB		 5960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5961 struct net_device *dev = info->user_ptr[1];
67fbb16b 5962
074ac8df 5963 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5964 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5965 return -EOPNOTSUPP;
67fbb16b 5966
4c476991
JB		 5967 if (!rdev->ops->flush_pmksa)
5968 return -EOPNOTSUPP;
67fbb16b 5969
e35e4d28 5970 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 5971}
5972
109086ce
AN		 5973static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5974{
5975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5976 struct net_device *dev = info->user_ptr[1];
5977 u8 action_code, dialog_token;
5978 u16 status_code;
5979 u8 *peer;
5980
5981 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5982 !rdev->ops->tdls_mgmt)
5983 return -EOPNOTSUPP;
5984
5985 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5986 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5987 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5988 !info->attrs[NL80211_ATTR_IE] ||
5989 !info->attrs[NL80211_ATTR_MAC])
5990 return -EINVAL;
5991
5992 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5993 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5994 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5995 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5996
e35e4d28
HG		 5997 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
5998 dialog_token, status_code,
5999 nla_data(info->attrs[NL80211_ATTR_IE]),
6000 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6001}
6002
6003static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6004{
6005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6006 struct net_device *dev = info->user_ptr[1];
6007 enum nl80211_tdls_operation operation;
6008 u8 *peer;
6009
6010 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6011 !rdev->ops->tdls_oper)
6012 return -EOPNOTSUPP;
6013
6014 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6015 !info->attrs[NL80211_ATTR_MAC])
6016 return -EINVAL;
6017
6018 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6019 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6020
e35e4d28 6021 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6022}
6023
9588bbd5
JM		 6024static int nl80211_remain_on_channel(struct sk_buff *skb,
6025 struct genl_info *info)
6026{
4c476991 6027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6028 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6029 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6030 struct sk_buff *msg;
6031 void *hdr;
6032 u64 cookie;
683b6d3b 6033 u32 duration;
9588bbd5
JM		 6034 int err;
6035
6036 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6037 !info->attrs[NL80211_ATTR_DURATION])
6038 return -EINVAL;
6039
6040 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6041
ebf348fc
JB		 6042 if (!rdev->ops->remain_on_channel ||
6043 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6044 return -EOPNOTSUPP;
6045
9588bbd5 6046 /*
ebf348fc
JB		 6047 * We should be on that channel for at least a minimum amount of
6048 * time (10ms) but no longer than the driver supports.
9588bbd5 6049 */
ebf348fc 6050 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6051 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6052 return -EINVAL;
6053
683b6d3b
JB		 6054 err = nl80211_parse_chandef(rdev, info, &chandef);
6055 if (err)
6056 return err;
9588bbd5
JM		 6057
6058 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6059 if (!msg)
6060 return -ENOMEM;
9588bbd5 6061
15e47304 6062 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6063 NL80211_CMD_REMAIN_ON_CHANNEL);
6064
6065 if (IS_ERR(hdr)) {
6066 err = PTR_ERR(hdr);
6067 goto free_msg;
6068 }
6069
683b6d3b
JB		 6070 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6071 duration, &cookie);
9588bbd5
JM		 6072
6073 if (err)
6074 goto free_msg;
6075
9360ffd1
DM		 6076 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6077 goto nla_put_failure;
9588bbd5
JM		 6078
6079 genlmsg_end(msg, hdr);
4c476991
JB		 6080
6081 return genlmsg_reply(msg, info);
9588bbd5
JM		 6082
6083 nla_put_failure:
6084 err = -ENOBUFS;
6085 free_msg:
6086 nlmsg_free(msg);
9588bbd5
JM		 6087 return err;
6088}
6089
6090static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6091 struct genl_info *info)
6092{
4c476991 6093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6094 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6095 u64 cookie;
9588bbd5
JM		 6096
6097 if (!info->attrs[NL80211_ATTR_COOKIE])
6098 return -EINVAL;
6099
4c476991
JB		 6100 if (!rdev->ops->cancel_remain_on_channel)
6101 return -EOPNOTSUPP;
9588bbd5 6102
9588bbd5
JM		 6103 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6104
e35e4d28 6105 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6106}
6107
13ae75b1
JM		 6108static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6109 u8 *rates, u8 rates_len)
6110{
6111 u8 i;
6112 u32 mask = 0;
6113
6114 for (i = 0; i < rates_len; i++) {
6115 int rate = (rates[i] & 0x7f) * 5;
6116 int ridx;
6117 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6118 struct ieee80211_rate *srate =
6119 &sband->bitrates[ridx];
6120 if (rate == srate->bitrate) {
6121 mask |= 1 << ridx;
6122 break;
6123 }
6124 }
6125 if (ridx == sband->n_bitrates)
6126 return 0; /* rate not found */
6127 }
6128
6129 return mask;
6130}
6131
24db78c0
SW		 6132static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6133 u8 *rates, u8 rates_len,
6134 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6135{
6136 u8 i;
6137
6138 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6139
6140 for (i = 0; i < rates_len; i++) {
6141 int ridx, rbit;
6142
6143 ridx = rates[i] / 8;
6144 rbit = BIT(rates[i] % 8);
6145
6146 /* check validity */
910570b5 6147 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6148 return false;
6149
6150 /* check availability */
6151 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6152 mcs[ridx] |= rbit;
6153 else
6154 return false;
6155 }
6156
6157 return true;
6158}
6159
b54452b0 6160static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6161 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6162 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6163 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6164 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6165};
6166
6167static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6168 struct genl_info *info)
6169{
6170 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6172 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6173 int rem, i;
6174 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6175 struct nlattr *tx_rates;
6176 struct ieee80211_supported_band *sband;
6177
6178 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6179 return -EINVAL;
6180
4c476991
JB		 6181 if (!rdev->ops->set_bitrate_mask)
6182 return -EOPNOTSUPP;
13ae75b1
JM		 6183
6184 memset(&mask, 0, sizeof(mask));
6185 /* Default to all rates enabled */
6186 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6187 sband = rdev->wiphy.bands[i];
6188 mask.control[i].legacy =
6189 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6190 if (sband)
6191 memcpy(mask.control[i].mcs,
6192 sband->ht_cap.mcs.rx_mask,
6193 sizeof(mask.control[i].mcs));
6194 else
6195 memset(mask.control[i].mcs, 0,
6196 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6197 }
6198
6199 /*
6200 * The nested attribute uses enum nl80211_band as the index. This maps
6201 * directly to the enum ieee80211_band values used in cfg80211.
6202 */
24db78c0 6203 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6204 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6205 {
6206 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6207 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6208 return -EINVAL;
13ae75b1 6209 sband = rdev->wiphy.bands[band];
4c476991
JB		 6210 if (sband == NULL)
6211 return -EINVAL;
13ae75b1
JM		 6212 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6213 nla_len(tx_rates), nl80211_txattr_policy);
6214 if (tb[NL80211_TXRATE_LEGACY]) {
6215 mask.control[band].legacy = rateset_to_mask(
6216 sband,
6217 nla_data(tb[NL80211_TXRATE_LEGACY]),
6218 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6219 if ((mask.control[band].legacy == 0) &&
6220 nla_len(tb[NL80211_TXRATE_LEGACY]))
6221 return -EINVAL;
24db78c0
SW		 6222 }
6223 if (tb[NL80211_TXRATE_MCS]) {
6224 if (!ht_rateset_to_mask(
6225 sband,
6226 nla_data(tb[NL80211_TXRATE_MCS]),
6227 nla_len(tb[NL80211_TXRATE_MCS]),
6228 mask.control[band].mcs))
6229 return -EINVAL;
6230 }
6231
6232 if (mask.control[band].legacy == 0) {
6233 /* don't allow empty legacy rates if HT
6234 * is not even supported. */
6235 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6236 return -EINVAL;
6237
6238 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6239 if (mask.control[band].mcs[i])
6240 break;
6241
6242 /* legacy and mcs rates may not be both empty */
6243 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6244 return -EINVAL;
13ae75b1
JM		 6245 }
6246 }
6247
e35e4d28 6248 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 6249}
6250
2e161f78 6251static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6252{
4c476991 6253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6254 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6255 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6256
6257 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6258 return -EINVAL;
6259
2e161f78
JB		 6260 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6261 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6262
71bbc994
JB		 6263 switch (wdev->iftype) {
6264 case NL80211_IFTYPE_STATION:
6265 case NL80211_IFTYPE_ADHOC:
6266 case NL80211_IFTYPE_P2P_CLIENT:
6267 case NL80211_IFTYPE_AP:
6268 case NL80211_IFTYPE_AP_VLAN:
6269 case NL80211_IFTYPE_MESH_POINT:
6270 case NL80211_IFTYPE_P2P_GO:
98104fde 6271 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6272 break;
6273 default:
4c476991 6274 return -EOPNOTSUPP;
71bbc994 6275 }
026331c4
JM		 6276
6277 /* not much point in registering if we can't reply */
4c476991
JB		 6278 if (!rdev->ops->mgmt_tx)
6279 return -EOPNOTSUPP;
026331c4 6280
15e47304 6281 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6282 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6283 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6284}
6285
2e161f78 6286static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6287{
4c476991 6288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6289 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6290 struct cfg80211_chan_def chandef;
026331c4 6291 int err;
d64d373f 6292 void *hdr = NULL;
026331c4 6293 u64 cookie;
e247bd90 6294 struct sk_buff *msg = NULL;
f7ca38df 6295 unsigned int wait = 0;
e247bd90
JB		 6296 bool offchan, no_cck, dont_wait_for_ack;
6297
6298 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 6299
683b6d3b 6300 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 6301 return -EINVAL;
6302
4c476991
JB		 6303 if (!rdev->ops->mgmt_tx)
6304 return -EOPNOTSUPP;
026331c4 6305
71bbc994
JB		 6306 switch (wdev->iftype) {
6307 case NL80211_IFTYPE_STATION:
6308 case NL80211_IFTYPE_ADHOC:
6309 case NL80211_IFTYPE_P2P_CLIENT:
6310 case NL80211_IFTYPE_AP:
6311 case NL80211_IFTYPE_AP_VLAN:
6312 case NL80211_IFTYPE_MESH_POINT:
6313 case NL80211_IFTYPE_P2P_GO:
98104fde 6314 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6315 break;
6316 default:
4c476991 6317 return -EOPNOTSUPP;
71bbc994 6318 }
026331c4 6319
f7ca38df 6320 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6321 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6322 return -EINVAL;
6323 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6324
6325 /*
6326 * We should wait on the channel for at least a minimum amount
6327 * of time (10ms) but no longer than the driver supports.
6328 */
6329 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6330 wait > rdev->wiphy.max_remain_on_channel_duration)
6331 return -EINVAL;
6332
f7ca38df
JB		 6333 }
6334
f7ca38df
JB		 6335 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6336
7c4ef712
JB		 6337 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6338 return -EINVAL;
6339
e9f935e3
RM		 6340 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6341
683b6d3b
JB		 6342 err = nl80211_parse_chandef(rdev, info, &chandef);
6343 if (err)
6344 return err;
026331c4 6345
e247bd90
JB		 6346 if (!dont_wait_for_ack) {
6347 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6348 if (!msg)
6349 return -ENOMEM;
026331c4 6350
15e47304 6351 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6352 NL80211_CMD_FRAME);
026331c4 6353
e247bd90
JB		 6354 if (IS_ERR(hdr)) {
6355 err = PTR_ERR(hdr);
6356 goto free_msg;
6357 }
026331c4 6358 }
e247bd90 6359
683b6d3b 6360 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 6361 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6362 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6363 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6364 if (err)
6365 goto free_msg;
6366
e247bd90 6367 if (msg) {
9360ffd1
DM		 6368 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6369 goto nla_put_failure;
026331c4 6370
e247bd90
JB		 6371 genlmsg_end(msg, hdr);
6372 return genlmsg_reply(msg, info);
6373 }
6374
6375 return 0;
026331c4
JM		 6376
6377 nla_put_failure:
6378 err = -ENOBUFS;
6379 free_msg:
6380 nlmsg_free(msg);
026331c4
JM		 6381 return err;
6382}
6383
f7ca38df
JB		 6384static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6385{
6386 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6387 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6388 u64 cookie;
6389
6390 if (!info->attrs[NL80211_ATTR_COOKIE])
6391 return -EINVAL;
6392
6393 if (!rdev->ops->mgmt_tx_cancel_wait)
6394 return -EOPNOTSUPP;
6395
71bbc994
JB		 6396 switch (wdev->iftype) {
6397 case NL80211_IFTYPE_STATION:
6398 case NL80211_IFTYPE_ADHOC:
6399 case NL80211_IFTYPE_P2P_CLIENT:
6400 case NL80211_IFTYPE_AP:
6401 case NL80211_IFTYPE_AP_VLAN:
6402 case NL80211_IFTYPE_P2P_GO:
98104fde 6403 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6404 break;
6405 default:
f7ca38df 6406 return -EOPNOTSUPP;
71bbc994 6407 }
f7ca38df
JB		 6408
6409 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6410
e35e4d28 6411 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 6412}
6413
ffb9eb3d
KV		 6414static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6415{
4c476991 6416 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6417 struct wireless_dev *wdev;
4c476991 6418 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6419 u8 ps_state;
6420 bool state;
6421 int err;
6422
4c476991
JB		 6423 if (!info->attrs[NL80211_ATTR_PS_STATE])
6424 return -EINVAL;
ffb9eb3d
KV		 6425
6426 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6427
4c476991
JB		 6428 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6429 return -EINVAL;
ffb9eb3d
KV		 6430
6431 wdev = dev->ieee80211_ptr;
6432
4c476991
JB		 6433 if (!rdev->ops->set_power_mgmt)
6434 return -EOPNOTSUPP;
ffb9eb3d
KV		 6435
6436 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6437
6438 if (state == wdev->ps)
4c476991 6439 return 0;
ffb9eb3d 6440
e35e4d28 6441 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 6442 if (!err)
6443 wdev->ps = state;
ffb9eb3d
KV		 6444 return err;
6445}
6446
6447static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6448{
4c476991 6449 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6450 enum nl80211_ps_state ps_state;
6451 struct wireless_dev *wdev;
4c476991 6452 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6453 struct sk_buff *msg;
6454 void *hdr;
6455 int err;
6456
ffb9eb3d
KV		 6457 wdev = dev->ieee80211_ptr;
6458
4c476991
JB		 6459 if (!rdev->ops->set_power_mgmt)
6460 return -EOPNOTSUPP;
ffb9eb3d
KV		 6461
6462 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6463 if (!msg)
6464 return -ENOMEM;
ffb9eb3d 6465
15e47304 6466 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6467 NL80211_CMD_GET_POWER_SAVE);
6468 if (!hdr) {
4c476991 6469 err = -ENOBUFS;
ffb9eb3d
KV		 6470 goto free_msg;
6471 }
6472
6473 if (wdev->ps)
6474 ps_state = NL80211_PS_ENABLED;
6475 else
6476 ps_state = NL80211_PS_DISABLED;
6477
9360ffd1
DM		 6478 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6479 goto nla_put_failure;
ffb9eb3d
KV		 6480
6481 genlmsg_end(msg, hdr);
4c476991 6482 return genlmsg_reply(msg, info);
ffb9eb3d 6483
4c476991 6484 nla_put_failure:
ffb9eb3d 6485 err = -ENOBUFS;
4c476991 6486 free_msg:
ffb9eb3d 6487 nlmsg_free(msg);
ffb9eb3d
KV		 6488 return err;
6489}
6490
d6dc1a38
JO		 6491static struct nla_policy
6492nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6493 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6494 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6495 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6496 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6497 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6498 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6499};
6500
84f10708
TP		 6501static int nl80211_set_cqm_txe(struct genl_info *info,
6502 u32 rate, u32 pkts, u32 intvl)
6503{
6504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6505 struct wireless_dev *wdev;
6506 struct net_device *dev = info->user_ptr[1];
6507
6508 if ((rate < 0 || rate > 100) ||
6509 (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
6510 return -EINVAL;
6511
6512 wdev = dev->ieee80211_ptr;
6513
6514 if (!rdev->ops->set_cqm_txe_config)
6515 return -EOPNOTSUPP;
6516
6517 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6518 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6519 return -EOPNOTSUPP;
6520
e35e4d28 6521 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 6522}
6523
d6dc1a38
JO		 6524static int nl80211_set_cqm_rssi(struct genl_info *info,
6525 s32 threshold, u32 hysteresis)
6526{
4c476991 6527 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6528 struct wireless_dev *wdev;
4c476991 6529 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6530
6531 if (threshold > 0)
6532 return -EINVAL;
6533
d6dc1a38
JO		 6534 wdev = dev->ieee80211_ptr;
6535
4c476991
JB		 6536 if (!rdev->ops->set_cqm_rssi_config)
6537 return -EOPNOTSUPP;
d6dc1a38 6538
074ac8df 6539 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6540 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6541 return -EOPNOTSUPP;
d6dc1a38 6542
e35e4d28 6543 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 6544}
6545
6546static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6547{
6548 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6549 struct nlattr *cqm;
6550 int err;
6551
6552 cqm = info->attrs[NL80211_ATTR_CQM];
6553 if (!cqm) {
6554 err = -EINVAL;
6555 goto out;
6556 }
6557
6558 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6559 nl80211_attr_cqm_policy);
6560 if (err)
6561 goto out;
6562
6563 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6564 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6565 s32 threshold;
6566 u32 hysteresis;
6567 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6568 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6569 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 6570 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6571 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6572 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6573 u32 rate, pkts, intvl;
6574 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6575 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6576 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6577 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 6578 } else
6579 err = -EINVAL;
6580
6581out:
6582 return err;
6583}
6584
29cbe68c
JB		 6585static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6586{
6587 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6588 struct net_device *dev = info->user_ptr[1];
6589 struct mesh_config cfg;
c80d545d 6590 struct mesh_setup setup;
29cbe68c
JB		 6591 int err;
6592
6593 /* start with default */
6594 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6595 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6596
24bdd9f4 6597 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6598 /* and parse parameters if given */
24bdd9f4 6599 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6600 if (err)
6601 return err;
6602 }
6603
6604 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6605 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6606 return -EINVAL;
6607
c80d545d
JC		 6608 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6609 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6610
4bb62344
CYY		 6611 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6612 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6613 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6614 return -EINVAL;
6615
c80d545d
JC		 6616 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6617 /* parse additional setup parameters if given */
6618 err = nl80211_parse_mesh_setup(info, &setup);
6619 if (err)
6620 return err;
6621 }
6622
cc1d2806 6623 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 6624 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
6625 if (err)
6626 return err;
cc1d2806
JB		 6627 } else {
6628 /* cfg80211_join_mesh() will sort it out */
683b6d3b 6629 setup.chandef.chan = NULL;
cc1d2806
JB		 6630 }
6631
c80d545d 6632 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6633}
6634
6635static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6636{
6637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6638 struct net_device *dev = info->user_ptr[1];
6639
6640 return cfg80211_leave_mesh(rdev, dev);
6641}
6642
dfb89c56 6643#ifdef CONFIG_PM
ff1b6e69
JB		 6644static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6645{
6646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6647 struct sk_buff *msg;
6648 void *hdr;
6649
6650 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6651 return -EOPNOTSUPP;
6652
6653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6654 if (!msg)
6655 return -ENOMEM;
6656
15e47304 6657 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 6658 NL80211_CMD_GET_WOWLAN);
6659 if (!hdr)
6660 goto nla_put_failure;
6661
6662 if (rdev->wowlan) {
6663 struct nlattr *nl_wowlan;
6664
6665 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6666 if (!nl_wowlan)
6667 goto nla_put_failure;
6668
9360ffd1
DM		 6669 if ((rdev->wowlan->any &&
6670 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6671 (rdev->wowlan->disconnect &&
6672 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6673 (rdev->wowlan->magic_pkt &&
6674 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6675 (rdev->wowlan->gtk_rekey_failure &&
6676 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6677 (rdev->wowlan->eap_identity_req &&
6678 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6679 (rdev->wowlan->four_way_handshake &&
6680 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6681 (rdev->wowlan->rfkill_release &&
6682 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6683 goto nla_put_failure;
ff1b6e69
JB		 6684 if (rdev->wowlan->n_patterns) {
6685 struct nlattr *nl_pats, *nl_pat;
6686 int i, pat_len;
6687
6688 nl_pats = nla_nest_start(msg,
6689 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6690 if (!nl_pats)
6691 goto nla_put_failure;
6692
6693 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6694 nl_pat = nla_nest_start(msg, i + 1);
6695 if (!nl_pat)
6696 goto nla_put_failure;
6697 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6698 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6699 DIV_ROUND_UP(pat_len, 8),
6700 rdev->wowlan->patterns[i].mask) ||
6701 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6702 pat_len,
6703 rdev->wowlan->patterns[i].pattern))
6704 goto nla_put_failure;
ff1b6e69
JB		 6705 nla_nest_end(msg, nl_pat);
6706 }
6707 nla_nest_end(msg, nl_pats);
6708 }
6709
6710 nla_nest_end(msg, nl_wowlan);
6711 }
6712
6713 genlmsg_end(msg, hdr);
6714 return genlmsg_reply(msg, info);
6715
6716nla_put_failure:
6717 nlmsg_free(msg);
6718 return -ENOBUFS;
6719}
6720
6721static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6722{
6723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6724 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 6725 struct cfg80211_wowlan new_triggers = {};
ae33bd81 6726 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 6727 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6728 int err, i;
6d52563f 6729 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6730
6731 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6732 return -EOPNOTSUPP;
6733
ae33bd81
JB		 6734 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6735 cfg80211_rdev_free_wowlan(rdev);
6736 rdev->wowlan = NULL;
6737 goto set_wakeup;
6738 }
ff1b6e69
JB		 6739
6740 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6741 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6742 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6743 nl80211_wowlan_policy);
6744 if (err)
6745 return err;
6746
6747 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6748 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6749 return -EINVAL;
6750 new_triggers.any = true;
6751 }
6752
6753 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6754 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6755 return -EINVAL;
6756 new_triggers.disconnect = true;
6757 }
6758
6759 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6760 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6761 return -EINVAL;
6762 new_triggers.magic_pkt = true;
6763 }
6764
77dbbb13
JB		 6765 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6766 return -EINVAL;
6767
6768 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6769 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6770 return -EINVAL;
6771 new_triggers.gtk_rekey_failure = true;
6772 }
6773
6774 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6775 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6776 return -EINVAL;
6777 new_triggers.eap_identity_req = true;
6778 }
6779
6780 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6781 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6782 return -EINVAL;
6783 new_triggers.four_way_handshake = true;
6784 }
6785
6786 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6787 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6788 return -EINVAL;
6789 new_triggers.rfkill_release = true;
6790 }
6791
ff1b6e69
JB		 6792 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6793 struct nlattr *pat;
6794 int n_patterns = 0;
6795 int rem, pat_len, mask_len;
6796 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6797
6798 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6799 rem)
6800 n_patterns++;
6801 if (n_patterns > wowlan->n_patterns)
6802 return -EINVAL;
6803
6804 new_triggers.patterns = kcalloc(n_patterns,
6805 sizeof(new_triggers.patterns[0]),
6806 GFP_KERNEL);
6807 if (!new_triggers.patterns)
6808 return -ENOMEM;
6809
6810 new_triggers.n_patterns = n_patterns;
6811 i = 0;
6812
6813 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6814 rem) {
6815 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6816 nla_data(pat), nla_len(pat), NULL);
6817 err = -EINVAL;
6818 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6819 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6820 goto error;
6821 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6822 mask_len = DIV_ROUND_UP(pat_len, 8);
6823 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6824 mask_len)
6825 goto error;
6826 if (pat_len > wowlan->pattern_max_len ||
6827 pat_len < wowlan->pattern_min_len)
6828 goto error;
6829
6830 new_triggers.patterns[i].mask =
6831 kmalloc(mask_len + pat_len, GFP_KERNEL);
6832 if (!new_triggers.patterns[i].mask) {
6833 err = -ENOMEM;
6834 goto error;
6835 }
6836 new_triggers.patterns[i].pattern =
6837 new_triggers.patterns[i].mask + mask_len;
6838 memcpy(new_triggers.patterns[i].mask,
6839 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6840 mask_len);
6841 new_triggers.patterns[i].pattern_len = pat_len;
6842 memcpy(new_triggers.patterns[i].pattern,
6843 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6844 pat_len);
6845 i++;
6846 }
6847 }
6848
ae33bd81
JB		 6849 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6850 if (!ntrig) {
6851 err = -ENOMEM;
6852 goto error;
ff1b6e69 6853 }
ae33bd81
JB		 6854 cfg80211_rdev_free_wowlan(rdev);
6855 rdev->wowlan = ntrig;
ff1b6e69 6856
ae33bd81 6857 set_wakeup:
6d52563f 6858 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 6859 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 6860
ff1b6e69
JB		 6861 return 0;
6862 error:
6863 for (i = 0; i < new_triggers.n_patterns; i++)
6864 kfree(new_triggers.patterns[i].mask);
6865 kfree(new_triggers.patterns);
6866 return err;
6867}
dfb89c56 6868#endif
ff1b6e69 6869
e5497d76
JB		 6870static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6871{
6872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6873 struct net_device *dev = info->user_ptr[1];
6874 struct wireless_dev *wdev = dev->ieee80211_ptr;
6875 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6876 struct cfg80211_gtk_rekey_data rekey_data;
6877 int err;
6878
6879 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6880 return -EINVAL;
6881
6882 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6883 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6884 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6885 nl80211_rekey_policy);
6886 if (err)
6887 return err;
6888
6889 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6890 return -ERANGE;
6891 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6892 return -ERANGE;
6893 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6894 return -ERANGE;
6895
6896 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6897 NL80211_KEK_LEN);
6898 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6899 NL80211_KCK_LEN);
6900 memcpy(rekey_data.replay_ctr,
6901 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6902 NL80211_REPLAY_CTR_LEN);
6903
6904 wdev_lock(wdev);
6905 if (!wdev->current_bss) {
6906 err = -ENOTCONN;
6907 goto out;
6908 }
6909
6910 if (!rdev->ops->set_rekey_data) {
6911 err = -EOPNOTSUPP;
6912 goto out;
6913 }
6914
e35e4d28 6915 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 6916 out:
6917 wdev_unlock(wdev);
6918 return err;
6919}
6920
28946da7
JB		 6921static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6922 struct genl_info *info)
6923{
6924 struct net_device *dev = info->user_ptr[1];
6925 struct wireless_dev *wdev = dev->ieee80211_ptr;
6926
6927 if (wdev->iftype != NL80211_IFTYPE_AP &&
6928 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6929 return -EINVAL;
6930
15e47304 6931 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 6932 return -EBUSY;
6933
15e47304 6934 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 6935 return 0;
6936}
6937
7f6cf311
JB		 6938static int nl80211_probe_client(struct sk_buff *skb,
6939 struct genl_info *info)
6940{
6941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6942 struct net_device *dev = info->user_ptr[1];
6943 struct wireless_dev *wdev = dev->ieee80211_ptr;
6944 struct sk_buff *msg;
6945 void *hdr;
6946 const u8 *addr;
6947 u64 cookie;
6948 int err;
6949
6950 if (wdev->iftype != NL80211_IFTYPE_AP &&
6951 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6952 return -EOPNOTSUPP;
6953
6954 if (!info->attrs[NL80211_ATTR_MAC])
6955 return -EINVAL;
6956
6957 if (!rdev->ops->probe_client)
6958 return -EOPNOTSUPP;
6959
6960 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6961 if (!msg)
6962 return -ENOMEM;
6963
15e47304 6964 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 6965 NL80211_CMD_PROBE_CLIENT);
6966
6967 if (IS_ERR(hdr)) {
6968 err = PTR_ERR(hdr);
6969 goto free_msg;
6970 }
6971
6972 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6973
e35e4d28 6974 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 6975 if (err)
6976 goto free_msg;
6977
9360ffd1
DM		 6978 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6979 goto nla_put_failure;
7f6cf311
JB		 6980
6981 genlmsg_end(msg, hdr);
6982
6983 return genlmsg_reply(msg, info);
6984
6985 nla_put_failure:
6986 err = -ENOBUFS;
6987 free_msg:
6988 nlmsg_free(msg);
6989 return err;
6990}
6991
5e760230
JB		 6992static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6993{
6994 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 6995 struct cfg80211_beacon_registration *reg, *nreg;
6996 int rv;
5e760230
JB		 6997
6998 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6999 return -EOPNOTSUPP;
7000
37c73b5f
BG		 7001 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7002 if (!nreg)
7003 return -ENOMEM;
7004
7005 /* First, check if already registered. */
7006 spin_lock_bh(&rdev->beacon_registrations_lock);
7007 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7008 if (reg->nlportid == info->snd_portid) {
7009 rv = -EALREADY;
7010 goto out_err;
7011 }
7012 }
7013 /* Add it to the list */
7014 nreg->nlportid = info->snd_portid;
7015 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 7016
37c73b5f 7017 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 7018
7019 return 0;
37c73b5f
BG		 7020out_err:
7021 spin_unlock_bh(&rdev->beacon_registrations_lock);
7022 kfree(nreg);
7023 return rv;
5e760230
JB		 7024}
7025
98104fde
JB		 7026static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7027{
7028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7029 struct wireless_dev *wdev = info->user_ptr[1];
7030 int err;
7031
7032 if (!rdev->ops->start_p2p_device)
7033 return -EOPNOTSUPP;
7034
7035 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7036 return -EOPNOTSUPP;
7037
7038 if (wdev->p2p_started)
7039 return 0;
7040
7041 mutex_lock(&rdev->devlist_mtx);
7042 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7043 mutex_unlock(&rdev->devlist_mtx);
7044 if (err)
7045 return err;
7046
eeb126e9 7047 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 7048 if (err)
7049 return err;
7050
7051 wdev->p2p_started = true;
7052 mutex_lock(&rdev->devlist_mtx);
7053 rdev->opencount++;
7054 mutex_unlock(&rdev->devlist_mtx);
7055
7056 return 0;
7057}
7058
7059static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7060{
7061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7062 struct wireless_dev *wdev = info->user_ptr[1];
7063
7064 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7065 return -EOPNOTSUPP;
7066
7067 if (!rdev->ops->stop_p2p_device)
7068 return -EOPNOTSUPP;
7069
7070 if (!wdev->p2p_started)
7071 return 0;
7072
eeb126e9 7073 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 7074 wdev->p2p_started = false;
7075
7076 mutex_lock(&rdev->devlist_mtx);
7077 rdev->opencount--;
7078 mutex_unlock(&rdev->devlist_mtx);
7079
7080 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7081 rdev->scan_req->aborted = true;
7082 ___cfg80211_scan_done(rdev, true);
7083 }
7084
7085 return 0;
7086}
7087
4c476991
JB		 7088#define NL80211_FLAG_NEED_WIPHY 0x01
7089#define NL80211_FLAG_NEED_NETDEV 0x02
7090#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 7091#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7092#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7093 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 7094#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 7095/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 7096#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7097 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 7098
7099static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7100 struct genl_info *info)
7101{
7102 struct cfg80211_registered_device *rdev;
89a54e48 7103 struct wireless_dev *wdev;
4c476991 7104 struct net_device *dev;
4c476991
JB		 7105 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7106
7107 if (rtnl)
7108 rtnl_lock();
7109
7110 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 7111 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 7112 if (IS_ERR(rdev)) {
7113 if (rtnl)
7114 rtnl_unlock();
7115 return PTR_ERR(rdev);
7116 }
7117 info->user_ptr[0] = rdev;
1bf614ef
JB		 7118 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7119 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7120 mutex_lock(&cfg80211_mutex);
7121 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7122 info->attrs);
7123 if (IS_ERR(wdev)) {
7124 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7125 if (rtnl)
7126 rtnl_unlock();
89a54e48 7127 return PTR_ERR(wdev);
4c476991 7128 }
89a54e48 7129
89a54e48
JB		 7130 dev = wdev->netdev;
7131 rdev = wiphy_to_dev(wdev->wiphy);
7132
1bf614ef
JB		 7133 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7134 if (!dev) {
7135 mutex_unlock(&cfg80211_mutex);
7136 if (rtnl)
7137 rtnl_unlock();
7138 return -EINVAL;
7139 }
7140
7141 info->user_ptr[1] = dev;
7142 } else {
7143 info->user_ptr[1] = wdev;
41265714 7144 }
1bf614ef
JB		 7145
7146 if (dev) {
7147 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7148 !netif_running(dev)) {
7149 mutex_unlock(&cfg80211_mutex);
7150 if (rtnl)
7151 rtnl_unlock();
7152 return -ENETDOWN;
7153 }
7154
7155 dev_hold(dev);
98104fde
JB		 7156 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7157 if (!wdev->p2p_started) {
7158 mutex_unlock(&cfg80211_mutex);
7159 if (rtnl)
7160 rtnl_unlock();
7161 return -ENETDOWN;
7162 }
41265714 7163 }
89a54e48 7164
89a54e48
JB		 7165 cfg80211_lock_rdev(rdev);
7166
7167 mutex_unlock(&cfg80211_mutex);
7168
4c476991 7169 info->user_ptr[0] = rdev;
4c476991
JB		 7170 }
7171
7172 return 0;
7173}
7174
7175static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7176 struct genl_info *info)
7177{
7178 if (info->user_ptr[0])
7179 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7180 if (info->user_ptr[1]) {
7181 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7182 struct wireless_dev *wdev = info->user_ptr[1];
7183
7184 if (wdev->netdev)
7185 dev_put(wdev->netdev);
7186 } else {
7187 dev_put(info->user_ptr[1]);
7188 }
7189 }
4c476991
JB		 7190 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7191 rtnl_unlock();
7192}
7193
55682965
JB		 7194static struct genl_ops nl80211_ops[] = {
7195 {
7196 .cmd = NL80211_CMD_GET_WIPHY,
7197 .doit = nl80211_get_wiphy,
7198 .dumpit = nl80211_dump_wiphy,
7199 .policy = nl80211_policy,
7200 /* can be retrieved by unprivileged users */
4c476991 7201 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7202 },
7203 {
7204 .cmd = NL80211_CMD_SET_WIPHY,
7205 .doit = nl80211_set_wiphy,
7206 .policy = nl80211_policy,
7207 .flags = GENL_ADMIN_PERM,
4c476991 7208 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7209 },
7210 {
7211 .cmd = NL80211_CMD_GET_INTERFACE,
7212 .doit = nl80211_get_interface,
7213 .dumpit = nl80211_dump_interface,
7214 .policy = nl80211_policy,
7215 /* can be retrieved by unprivileged users */
72fb2abc 7216 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7217 },
7218 {
7219 .cmd = NL80211_CMD_SET_INTERFACE,
7220 .doit = nl80211_set_interface,
7221 .policy = nl80211_policy,
7222 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7223 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7224 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7225 },
7226 {
7227 .cmd = NL80211_CMD_NEW_INTERFACE,
7228 .doit = nl80211_new_interface,
7229 .policy = nl80211_policy,
7230 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7231 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7232 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7233 },
7234 {
7235 .cmd = NL80211_CMD_DEL_INTERFACE,
7236 .doit = nl80211_del_interface,
7237 .policy = nl80211_policy,
41ade00f 7238 .flags = GENL_ADMIN_PERM,
84efbb84 7239 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7240 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7241 },
7242 {
7243 .cmd = NL80211_CMD_GET_KEY,
7244 .doit = nl80211_get_key,
7245 .policy = nl80211_policy,
7246 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7247 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7248 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7249 },
7250 {
7251 .cmd = NL80211_CMD_SET_KEY,
7252 .doit = nl80211_set_key,
7253 .policy = nl80211_policy,
7254 .flags = GENL_ADMIN_PERM,
41265714 7255 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7256 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7257 },
7258 {
7259 .cmd = NL80211_CMD_NEW_KEY,
7260 .doit = nl80211_new_key,
7261 .policy = nl80211_policy,
7262 .flags = GENL_ADMIN_PERM,
41265714 7263 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7264 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7265 },
7266 {
7267 .cmd = NL80211_CMD_DEL_KEY,
7268 .doit = nl80211_del_key,
7269 .policy = nl80211_policy,
55682965 7270 .flags = GENL_ADMIN_PERM,
41265714 7271 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7272 NL80211_FLAG_NEED_RTNL,
55682965 7273 },
ed1b6cc7
JB		 7274 {
7275 .cmd = NL80211_CMD_SET_BEACON,
7276 .policy = nl80211_policy,
7277 .flags = GENL_ADMIN_PERM,
8860020e 7278 .doit = nl80211_set_beacon,
2b5f8b0b 7279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7280 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7281 },
7282 {
8860020e 7283 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7284 .policy = nl80211_policy,
7285 .flags = GENL_ADMIN_PERM,
8860020e 7286 .doit = nl80211_start_ap,
2b5f8b0b 7287 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7288 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7289 },
7290 {
8860020e 7291 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7292 .policy = nl80211_policy,
7293 .flags = GENL_ADMIN_PERM,
8860020e 7294 .doit = nl80211_stop_ap,
2b5f8b0b 7295 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7296 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7297 },
5727ef1b
JB		 7298 {
7299 .cmd = NL80211_CMD_GET_STATION,
7300 .doit = nl80211_get_station,
2ec600d6 7301 .dumpit = nl80211_dump_station,
5727ef1b 7302 .policy = nl80211_policy,
4c476991
JB		 7303 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7304 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7305 },
7306 {
7307 .cmd = NL80211_CMD_SET_STATION,
7308 .doit = nl80211_set_station,
7309 .policy = nl80211_policy,
7310 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7311 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7312 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7313 },
7314 {
7315 .cmd = NL80211_CMD_NEW_STATION,
7316 .doit = nl80211_new_station,
7317 .policy = nl80211_policy,
7318 .flags = GENL_ADMIN_PERM,
41265714 7319 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7320 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7321 },
7322 {
7323 .cmd = NL80211_CMD_DEL_STATION,
7324 .doit = nl80211_del_station,
7325 .policy = nl80211_policy,
2ec600d6 7326 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7327 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7328 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7329 },
7330 {
7331 .cmd = NL80211_CMD_GET_MPATH,
7332 .doit = nl80211_get_mpath,
7333 .dumpit = nl80211_dump_mpath,
7334 .policy = nl80211_policy,
7335 .flags = GENL_ADMIN_PERM,
41265714 7336 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7337 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7338 },
7339 {
7340 .cmd = NL80211_CMD_SET_MPATH,
7341 .doit = nl80211_set_mpath,
7342 .policy = nl80211_policy,
7343 .flags = GENL_ADMIN_PERM,
41265714 7344 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7345 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7346 },
7347 {
7348 .cmd = NL80211_CMD_NEW_MPATH,
7349 .doit = nl80211_new_mpath,
7350 .policy = nl80211_policy,
7351 .flags = GENL_ADMIN_PERM,
41265714 7352 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7353 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7354 },
7355 {
7356 .cmd = NL80211_CMD_DEL_MPATH,
7357 .doit = nl80211_del_mpath,
7358 .policy = nl80211_policy,
9f1ba906 7359 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7360 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7361 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 7362 },
7363 {
7364 .cmd = NL80211_CMD_SET_BSS,
7365 .doit = nl80211_set_bss,
7366 .policy = nl80211_policy,
b2e1b302 7367 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7368 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7369 NL80211_FLAG_NEED_RTNL,
b2e1b302 7370 },
f130347c
LR		 7371 {
7372 .cmd = NL80211_CMD_GET_REG,
7373 .doit = nl80211_get_reg,
7374 .policy = nl80211_policy,
7375 /* can be retrieved by unprivileged users */
7376 },
b2e1b302
LR		 7377 {
7378 .cmd = NL80211_CMD_SET_REG,
7379 .doit = nl80211_set_reg,
7380 .policy = nl80211_policy,
7381 .flags = GENL_ADMIN_PERM,
7382 },
7383 {
7384 .cmd = NL80211_CMD_REQ_SET_REG,
7385 .doit = nl80211_req_set_reg,
7386 .policy = nl80211_policy,
93da9cc1 7387 .flags = GENL_ADMIN_PERM,
7388 },
7389 {
24bdd9f4
JC		 7390 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7391 .doit = nl80211_get_mesh_config,
93da9cc1 7392 .policy = nl80211_policy,
7393 /* can be retrieved by unprivileged users */
2b5f8b0b 7394 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7395 NL80211_FLAG_NEED_RTNL,
93da9cc1 7396 },
7397 {
24bdd9f4
JC		 7398 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7399 .doit = nl80211_update_mesh_config,
93da9cc1 7400 .policy = nl80211_policy,
9aed3cc1 7401 .flags = GENL_ADMIN_PERM,
29cbe68c 7402 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7403 NL80211_FLAG_NEED_RTNL,
9aed3cc1 7404 },
2a519311
JB		 7405 {
7406 .cmd = NL80211_CMD_TRIGGER_SCAN,
7407 .doit = nl80211_trigger_scan,
7408 .policy = nl80211_policy,
7409 .flags = GENL_ADMIN_PERM,
fd014284 7410 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7411 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 7412 },
7413 {
7414 .cmd = NL80211_CMD_GET_SCAN,
7415 .policy = nl80211_policy,
7416 .dumpit = nl80211_dump_scan,
7417 },
807f8a8c
LC		 7418 {
7419 .cmd = NL80211_CMD_START_SCHED_SCAN,
7420 .doit = nl80211_start_sched_scan,
7421 .policy = nl80211_policy,
7422 .flags = GENL_ADMIN_PERM,
7423 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7424 NL80211_FLAG_NEED_RTNL,
7425 },
7426 {
7427 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7428 .doit = nl80211_stop_sched_scan,
7429 .policy = nl80211_policy,
7430 .flags = GENL_ADMIN_PERM,
7431 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7432 NL80211_FLAG_NEED_RTNL,
7433 },
636a5d36
JM		 7434 {
7435 .cmd = NL80211_CMD_AUTHENTICATE,
7436 .doit = nl80211_authenticate,
7437 .policy = nl80211_policy,
7438 .flags = GENL_ADMIN_PERM,
41265714 7439 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7440 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7441 },
7442 {
7443 .cmd = NL80211_CMD_ASSOCIATE,
7444 .doit = nl80211_associate,
7445 .policy = nl80211_policy,
7446 .flags = GENL_ADMIN_PERM,
41265714 7447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7448 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7449 },
7450 {
7451 .cmd = NL80211_CMD_DEAUTHENTICATE,
7452 .doit = nl80211_deauthenticate,
7453 .policy = nl80211_policy,
7454 .flags = GENL_ADMIN_PERM,
41265714 7455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7456 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7457 },
7458 {
7459 .cmd = NL80211_CMD_DISASSOCIATE,
7460 .doit = nl80211_disassociate,
7461 .policy = nl80211_policy,
7462 .flags = GENL_ADMIN_PERM,
41265714 7463 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7464 NL80211_FLAG_NEED_RTNL,
636a5d36 7465 },
04a773ad
JB		 7466 {
7467 .cmd = NL80211_CMD_JOIN_IBSS,
7468 .doit = nl80211_join_ibss,
7469 .policy = nl80211_policy,
7470 .flags = GENL_ADMIN_PERM,
41265714 7471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7472 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 7473 },
7474 {
7475 .cmd = NL80211_CMD_LEAVE_IBSS,
7476 .doit = nl80211_leave_ibss,
7477 .policy = nl80211_policy,
7478 .flags = GENL_ADMIN_PERM,
41265714 7479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7480 NL80211_FLAG_NEED_RTNL,
04a773ad 7481 },
aff89a9b
JB		 7482#ifdef CONFIG_NL80211_TESTMODE
7483 {
7484 .cmd = NL80211_CMD_TESTMODE,
7485 .doit = nl80211_testmode_do,
71063f0e 7486 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7487 .policy = nl80211_policy,
7488 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7489 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7490 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7491 },
7492#endif
b23aa676
SO		 7493 {
7494 .cmd = NL80211_CMD_CONNECT,
7495 .doit = nl80211_connect,
7496 .policy = nl80211_policy,
7497 .flags = GENL_ADMIN_PERM,
41265714 7498 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7499 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7500 },
7501 {
7502 .cmd = NL80211_CMD_DISCONNECT,
7503 .doit = nl80211_disconnect,
7504 .policy = nl80211_policy,
7505 .flags = GENL_ADMIN_PERM,
41265714 7506 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7507 NL80211_FLAG_NEED_RTNL,
b23aa676 7508 },
463d0183
JB		 7509 {
7510 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7511 .doit = nl80211_wiphy_netns,
7512 .policy = nl80211_policy,
7513 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7514 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7515 NL80211_FLAG_NEED_RTNL,
463d0183 7516 },
61fa713c
HS		 7517 {
7518 .cmd = NL80211_CMD_GET_SURVEY,
7519 .policy = nl80211_policy,
7520 .dumpit = nl80211_dump_survey,
7521 },
67fbb16b
SO		 7522 {
7523 .cmd = NL80211_CMD_SET_PMKSA,
7524 .doit = nl80211_setdel_pmksa,
7525 .policy = nl80211_policy,
7526 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7528 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7529 },
7530 {
7531 .cmd = NL80211_CMD_DEL_PMKSA,
7532 .doit = nl80211_setdel_pmksa,
7533 .policy = nl80211_policy,
7534 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7536 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7537 },
7538 {
7539 .cmd = NL80211_CMD_FLUSH_PMKSA,
7540 .doit = nl80211_flush_pmksa,
7541 .policy = nl80211_policy,
7542 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7543 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7544 NL80211_FLAG_NEED_RTNL,
67fbb16b 7545 },
9588bbd5
JM		 7546 {
7547 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7548 .doit = nl80211_remain_on_channel,
7549 .policy = nl80211_policy,
7550 .flags = GENL_ADMIN_PERM,
71bbc994 7551 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7552 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7553 },
7554 {
7555 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7556 .doit = nl80211_cancel_remain_on_channel,
7557 .policy = nl80211_policy,
7558 .flags = GENL_ADMIN_PERM,
71bbc994 7559 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7560 NL80211_FLAG_NEED_RTNL,
9588bbd5 7561 },
13ae75b1
JM		 7562 {
7563 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7564 .doit = nl80211_set_tx_bitrate_mask,
7565 .policy = nl80211_policy,
7566 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7567 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7568 NL80211_FLAG_NEED_RTNL,
13ae75b1 7569 },
026331c4 7570 {
2e161f78
JB		 7571 .cmd = NL80211_CMD_REGISTER_FRAME,
7572 .doit = nl80211_register_mgmt,
026331c4
JM		 7573 .policy = nl80211_policy,
7574 .flags = GENL_ADMIN_PERM,
71bbc994 7575 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7576 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7577 },
7578 {
2e161f78
JB		 7579 .cmd = NL80211_CMD_FRAME,
7580 .doit = nl80211_tx_mgmt,
026331c4 7581 .policy = nl80211_policy,
f7ca38df 7582 .flags = GENL_ADMIN_PERM,
71bbc994 7583 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 7584 NL80211_FLAG_NEED_RTNL,
7585 },
7586 {
7587 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7588 .doit = nl80211_tx_mgmt_cancel_wait,
7589 .policy = nl80211_policy,
026331c4 7590 .flags = GENL_ADMIN_PERM,
71bbc994 7591 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7592 NL80211_FLAG_NEED_RTNL,
026331c4 7593 },
ffb9eb3d
KV		 7594 {
7595 .cmd = NL80211_CMD_SET_POWER_SAVE,
7596 .doit = nl80211_set_power_save,
7597 .policy = nl80211_policy,
7598 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7599 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7600 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7601 },
7602 {
7603 .cmd = NL80211_CMD_GET_POWER_SAVE,
7604 .doit = nl80211_get_power_save,
7605 .policy = nl80211_policy,
7606 /* can be retrieved by unprivileged users */
4c476991
JB		 7607 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7608 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7609 },
d6dc1a38
JO		 7610 {
7611 .cmd = NL80211_CMD_SET_CQM,
7612 .doit = nl80211_set_cqm,
7613 .policy = nl80211_policy,
7614 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7615 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7616 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7617 },
f444de05
JB		 7618 {
7619 .cmd = NL80211_CMD_SET_CHANNEL,
7620 .doit = nl80211_set_channel,
7621 .policy = nl80211_policy,
7622 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7623 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7624 NL80211_FLAG_NEED_RTNL,
f444de05 7625 },
e8347eba
BJ		 7626 {
7627 .cmd = NL80211_CMD_SET_WDS_PEER,
7628 .doit = nl80211_set_wds_peer,
7629 .policy = nl80211_policy,
7630 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7631 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7632 NL80211_FLAG_NEED_RTNL,
e8347eba 7633 },
29cbe68c
JB		 7634 {
7635 .cmd = NL80211_CMD_JOIN_MESH,
7636 .doit = nl80211_join_mesh,
7637 .policy = nl80211_policy,
7638 .flags = GENL_ADMIN_PERM,
7639 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7640 NL80211_FLAG_NEED_RTNL,
7641 },
7642 {
7643 .cmd = NL80211_CMD_LEAVE_MESH,
7644 .doit = nl80211_leave_mesh,
7645 .policy = nl80211_policy,
7646 .flags = GENL_ADMIN_PERM,
7647 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7648 NL80211_FLAG_NEED_RTNL,
7649 },
dfb89c56 7650#ifdef CONFIG_PM
ff1b6e69
JB		 7651 {
7652 .cmd = NL80211_CMD_GET_WOWLAN,
7653 .doit = nl80211_get_wowlan,
7654 .policy = nl80211_policy,
7655 /* can be retrieved by unprivileged users */
7656 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7657 NL80211_FLAG_NEED_RTNL,
7658 },
7659 {
7660 .cmd = NL80211_CMD_SET_WOWLAN,
7661 .doit = nl80211_set_wowlan,
7662 .policy = nl80211_policy,
7663 .flags = GENL_ADMIN_PERM,
7664 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7665 NL80211_FLAG_NEED_RTNL,
7666 },
dfb89c56 7667#endif
e5497d76
JB		 7668 {
7669 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7670 .doit = nl80211_set_rekey_data,
7671 .policy = nl80211_policy,
7672 .flags = GENL_ADMIN_PERM,
7673 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7674 NL80211_FLAG_NEED_RTNL,
7675 },
109086ce
AN		 7676 {
7677 .cmd = NL80211_CMD_TDLS_MGMT,
7678 .doit = nl80211_tdls_mgmt,
7679 .policy = nl80211_policy,
7680 .flags = GENL_ADMIN_PERM,
7681 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7682 NL80211_FLAG_NEED_RTNL,
7683 },
7684 {
7685 .cmd = NL80211_CMD_TDLS_OPER,
7686 .doit = nl80211_tdls_oper,
7687 .policy = nl80211_policy,
7688 .flags = GENL_ADMIN_PERM,
7689 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7690 NL80211_FLAG_NEED_RTNL,
7691 },
28946da7
JB		 7692 {
7693 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7694 .doit = nl80211_register_unexpected_frame,
7695 .policy = nl80211_policy,
7696 .flags = GENL_ADMIN_PERM,
7697 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7698 NL80211_FLAG_NEED_RTNL,
7699 },
7f6cf311
JB		 7700 {
7701 .cmd = NL80211_CMD_PROBE_CLIENT,
7702 .doit = nl80211_probe_client,
7703 .policy = nl80211_policy,
7704 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7706 NL80211_FLAG_NEED_RTNL,
7707 },
5e760230
JB		 7708 {
7709 .cmd = NL80211_CMD_REGISTER_BEACONS,
7710 .doit = nl80211_register_beacons,
7711 .policy = nl80211_policy,
7712 .flags = GENL_ADMIN_PERM,
7713 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7714 NL80211_FLAG_NEED_RTNL,
7715 },
1d9d9213
SW		 7716 {
7717 .cmd = NL80211_CMD_SET_NOACK_MAP,
7718 .doit = nl80211_set_noack_map,
7719 .policy = nl80211_policy,
7720 .flags = GENL_ADMIN_PERM,
7721 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7722 NL80211_FLAG_NEED_RTNL,
7723 },
98104fde
JB		 7724 {
7725 .cmd = NL80211_CMD_START_P2P_DEVICE,
7726 .doit = nl80211_start_p2p_device,
7727 .policy = nl80211_policy,
7728 .flags = GENL_ADMIN_PERM,
7729 .internal_flags = NL80211_FLAG_NEED_WDEV |
7730 NL80211_FLAG_NEED_RTNL,
7731 },
7732 {
7733 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7734 .doit = nl80211_stop_p2p_device,
7735 .policy = nl80211_policy,
7736 .flags = GENL_ADMIN_PERM,
7737 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7738 NL80211_FLAG_NEED_RTNL,
7739 },
f4e583c8
AQ		 7740 {
7741 .cmd = NL80211_CMD_SET_MCAST_RATE,
7742 .doit = nl80211_set_mcast_rate,
7743 .policy = nl80211_policy,
7744 .flags = GENL_ADMIN_PERM,
7745 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7746 NL80211_FLAG_NEED_RTNL,
7747 },
55682965 7748};
9588bbd5 7749
6039f6d2
JM		 7750static struct genl_multicast_group nl80211_mlme_mcgrp = {
7751 .name = "mlme",
7752};
55682965
JB		 7753
7754/* multicast groups */
7755static struct genl_multicast_group nl80211_config_mcgrp = {
7756 .name = "config",
7757};
2a519311
JB		 7758static struct genl_multicast_group nl80211_scan_mcgrp = {
7759 .name = "scan",
7760};
73d54c9e
LR		 7761static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7762 .name = "regulatory",
7763};
55682965
JB		 7764
7765/* notification functions */
7766
7767void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7768{
7769 struct sk_buff *msg;
7770
fd2120ca 7771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7772 if (!msg)
7773 return;
7774
7775 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7776 nlmsg_free(msg);
7777 return;
7778 }
7779
463d0183
JB		 7780 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7781 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7782}
7783
362a415d
JB		 7784static int nl80211_add_scan_req(struct sk_buff *msg,
7785 struct cfg80211_registered_device *rdev)
7786{
7787 struct cfg80211_scan_request *req = rdev->scan_req;
7788 struct nlattr *nest;
7789 int i;
7790
667503dd
JB		 7791 ASSERT_RDEV_LOCK(rdev);
7792
362a415d
JB		 7793 if (WARN_ON(!req))
7794 return 0;
7795
7796 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7797 if (!nest)
7798 goto nla_put_failure;
9360ffd1
DM		 7799 for (i = 0; i < req->n_ssids; i++) {
7800 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7801 goto nla_put_failure;
7802 }
362a415d
JB		 7803 nla_nest_end(msg, nest);
7804
7805 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7806 if (!nest)
7807 goto nla_put_failure;
9360ffd1
DM		 7808 for (i = 0; i < req->n_channels; i++) {
7809 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7810 goto nla_put_failure;
7811 }
362a415d
JB		 7812 nla_nest_end(msg, nest);
7813
9360ffd1
DM		 7814 if (req->ie &&
7815 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7816 goto nla_put_failure;
362a415d 7817
ed473771
SL		 7818 if (req->flags)
7819 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7820
362a415d
JB		 7821 return 0;
7822 nla_put_failure:
7823 return -ENOBUFS;
7824}
7825
a538e2d5
JB		 7826static int nl80211_send_scan_msg(struct sk_buff *msg,
7827 struct cfg80211_registered_device *rdev,
fd014284 7828 struct wireless_dev *wdev,
15e47304 7829 u32 portid, u32 seq, int flags,
a538e2d5 7830 u32 cmd)
2a519311
JB		 7831{
7832 void *hdr;
7833
15e47304 7834 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 7835 if (!hdr)
7836 return -1;
7837
9360ffd1 7838 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 7839 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7840 wdev->netdev->ifindex)) ||
7841 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 7842 goto nla_put_failure;
2a519311 7843
362a415d
JB		 7844 /* ignore errors and send incomplete event anyway */
7845 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7846
7847 return genlmsg_end(msg, hdr);
7848
7849 nla_put_failure:
7850 genlmsg_cancel(msg, hdr);
7851 return -EMSGSIZE;
7852}
7853
807f8a8c
LC		 7854static int
7855nl80211_send_sched_scan_msg(struct sk_buff *msg,
7856 struct cfg80211_registered_device *rdev,
7857 struct net_device *netdev,
15e47304 7858 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 7859{
7860 void *hdr;
7861
15e47304 7862 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 7863 if (!hdr)
7864 return -1;
7865
9360ffd1
DM		 7866 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7867 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7868 goto nla_put_failure;
807f8a8c
LC		 7869
7870 return genlmsg_end(msg, hdr);
7871
7872 nla_put_failure:
7873 genlmsg_cancel(msg, hdr);
7874 return -EMSGSIZE;
7875}
7876
a538e2d5 7877void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 7878 struct wireless_dev *wdev)
a538e2d5
JB		 7879{
7880 struct sk_buff *msg;
7881
58050fce 7882 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 7883 if (!msg)
7884 return;
7885
fd014284 7886 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 7887 NL80211_CMD_TRIGGER_SCAN) < 0) {
7888 nlmsg_free(msg);
7889 return;
7890 }
7891
463d0183
JB		 7892 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7893 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7894}
7895
2a519311 7896void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 7897 struct wireless_dev *wdev)
2a519311
JB		 7898{
7899 struct sk_buff *msg;
7900
fd2120ca 7901 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7902 if (!msg)
7903 return;
7904
fd014284 7905 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7906 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7907 nlmsg_free(msg);
7908 return;
7909 }
7910
463d0183
JB		 7911 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7912 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7913}
7914
7915void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 7916 struct wireless_dev *wdev)
2a519311
JB		 7917{
7918 struct sk_buff *msg;
7919
fd2120ca 7920 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7921 if (!msg)
7922 return;
7923
fd014284 7924 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7925 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7926 nlmsg_free(msg);
7927 return;
7928 }
7929
463d0183
JB		 7930 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7931 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7932}
7933
807f8a8c
LC		 7934void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7935 struct net_device *netdev)
7936{
7937 struct sk_buff *msg;
7938
7939 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7940 if (!msg)
7941 return;
7942
7943 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7944 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7945 nlmsg_free(msg);
7946 return;
7947 }
7948
7949 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7950 nl80211_scan_mcgrp.id, GFP_KERNEL);
7951}
7952
7953void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7954 struct net_device *netdev, u32 cmd)
7955{
7956 struct sk_buff *msg;
7957
58050fce 7958 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 7959 if (!msg)
7960 return;
7961
7962 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7963 nlmsg_free(msg);
7964 return;
7965 }
7966
7967 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7968 nl80211_scan_mcgrp.id, GFP_KERNEL);
7969}
7970
73d54c9e
LR		 7971/*
7972 * This can happen on global regulatory changes or device specific settings
7973 * based on custom world regulatory domains.
7974 */
7975void nl80211_send_reg_change_event(struct regulatory_request *request)
7976{
7977 struct sk_buff *msg;
7978 void *hdr;
7979
fd2120ca 7980 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7981 if (!msg)
7982 return;
7983
7984 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7985 if (!hdr) {
7986 nlmsg_free(msg);
7987 return;
7988 }
7989
7990 /* Userspace can always count this one always being set */
9360ffd1
DM		 7991 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7992 goto nla_put_failure;
7993
7994 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7995 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7996 NL80211_REGDOM_TYPE_WORLD))
7997 goto nla_put_failure;
7998 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7999 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8000 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8001 goto nla_put_failure;
8002 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8003 request->intersect) {
8004 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8005 NL80211_REGDOM_TYPE_INTERSECTION))
8006 goto nla_put_failure;
8007 } else {
8008 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8009 NL80211_REGDOM_TYPE_COUNTRY) ||
8010 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8011 request->alpha2))
8012 goto nla_put_failure;
8013 }
8014
8015 if (wiphy_idx_valid(request->wiphy_idx) &&
8016 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8017 goto nla_put_failure;
73d54c9e 8018
3b7b72ee 8019 genlmsg_end(msg, hdr);
73d54c9e 8020
bc43b28c 8021 rcu_read_lock();
463d0183 8022 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 8023 GFP_ATOMIC);
8024 rcu_read_unlock();
73d54c9e
LR		 8025
8026 return;
8027
8028nla_put_failure:
8029 genlmsg_cancel(msg, hdr);
8030 nlmsg_free(msg);
8031}
8032
6039f6d2
JM		 8033static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8034 struct net_device *netdev,
8035 const u8 *buf, size_t len,
e6d6e342 8036 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 8037{
8038 struct sk_buff *msg;
8039 void *hdr;
8040
e6d6e342 8041 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 8042 if (!msg)
8043 return;
8044
8045 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8046 if (!hdr) {
8047 nlmsg_free(msg);
8048 return;
8049 }
8050
9360ffd1
DM		 8051 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8052 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8053 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8054 goto nla_put_failure;
6039f6d2 8055
3b7b72ee 8056 genlmsg_end(msg, hdr);
6039f6d2 8057
463d0183
JB		 8058 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8059 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 8060 return;
8061
8062 nla_put_failure:
8063 genlmsg_cancel(msg, hdr);
8064 nlmsg_free(msg);
8065}
8066
8067void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8068 struct net_device *netdev, const u8 *buf,
8069 size_t len, gfp_t gfp)
6039f6d2
JM		 8070{
8071 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8072 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 8073}
8074
8075void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8076 struct net_device *netdev, const u8 *buf,
e6d6e342 8077 size_t len, gfp_t gfp)
6039f6d2 8078{
e6d6e342
JB		 8079 nl80211_send_mlme_event(rdev, netdev, buf, len,
8080 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 8081}
8082
53b46b84 8083void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8084 struct net_device *netdev, const u8 *buf,
8085 size_t len, gfp_t gfp)
6039f6d2
JM		 8086{
8087 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8088 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 8089}
8090
53b46b84
JM		 8091void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8092 struct net_device *netdev, const u8 *buf,
e6d6e342 8093 size_t len, gfp_t gfp)
6039f6d2
JM		 8094{
8095 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8096 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 8097}
8098
cf4e594e
JM		 8099void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8100 struct net_device *netdev, const u8 *buf,
8101 size_t len, gfp_t gfp)
8102{
8103 nl80211_send_mlme_event(rdev, netdev, buf, len,
8104 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8105}
8106
8107void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8108 struct net_device *netdev, const u8 *buf,
8109 size_t len, gfp_t gfp)
8110{
8111 nl80211_send_mlme_event(rdev, netdev, buf, len,
8112 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8113}
8114
1b06bb40
LR		 8115static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8116 struct net_device *netdev, int cmd,
e6d6e342 8117 const u8 *addr, gfp_t gfp)
1965c853
JM		 8118{
8119 struct sk_buff *msg;
8120 void *hdr;
8121
e6d6e342 8122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 8123 if (!msg)
8124 return;
8125
8126 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8127 if (!hdr) {
8128 nlmsg_free(msg);
8129 return;
8130 }
8131
9360ffd1
DM		 8132 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8133 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8134 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8135 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8136 goto nla_put_failure;
1965c853 8137
3b7b72ee 8138 genlmsg_end(msg, hdr);
1965c853 8139
463d0183
JB		 8140 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8141 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8142 return;
8143
8144 nla_put_failure:
8145 genlmsg_cancel(msg, hdr);
8146 nlmsg_free(msg);
8147}
8148
8149void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8150 struct net_device *netdev, const u8 *addr,
8151 gfp_t gfp)
1965c853
JM		 8152{
8153 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8154 addr, gfp);
1965c853
JM		 8155}
8156
8157void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8158 struct net_device *netdev, const u8 *addr,
8159 gfp_t gfp)
1965c853 8160{
e6d6e342
JB		 8161 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8162 addr, gfp);
1965c853
JM		 8163}
8164
b23aa676
SO		 8165void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8166 struct net_device *netdev, const u8 *bssid,
8167 const u8 *req_ie, size_t req_ie_len,
8168 const u8 *resp_ie, size_t resp_ie_len,
8169 u16 status, gfp_t gfp)
8170{
8171 struct sk_buff *msg;
8172 void *hdr;
8173
58050fce 8174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8175 if (!msg)
8176 return;
8177
8178 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8179 if (!hdr) {
8180 nlmsg_free(msg);
8181 return;
8182 }
8183
9360ffd1
DM		 8184 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8185 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8186 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8187 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8188 (req_ie &&
8189 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8190 (resp_ie &&
8191 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8192 goto nla_put_failure;
b23aa676 8193
3b7b72ee 8194 genlmsg_end(msg, hdr);
b23aa676 8195
463d0183
JB		 8196 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8197 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8198 return;
8199
8200 nla_put_failure:
8201 genlmsg_cancel(msg, hdr);
8202 nlmsg_free(msg);
8203
8204}
8205
8206void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8207 struct net_device *netdev, const u8 *bssid,
8208 const u8 *req_ie, size_t req_ie_len,
8209 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8210{
8211 struct sk_buff *msg;
8212 void *hdr;
8213
58050fce 8214 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8215 if (!msg)
8216 return;
8217
8218 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8219 if (!hdr) {
8220 nlmsg_free(msg);
8221 return;
8222 }
8223
9360ffd1
DM		 8224 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8225 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8226 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8227 (req_ie &&
8228 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8229 (resp_ie &&
8230 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8231 goto nla_put_failure;
b23aa676 8232
3b7b72ee 8233 genlmsg_end(msg, hdr);
b23aa676 8234
463d0183
JB		 8235 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8236 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8237 return;
8238
8239 nla_put_failure:
8240 genlmsg_cancel(msg, hdr);
8241 nlmsg_free(msg);
8242
8243}
8244
8245void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8246 struct net_device *netdev, u16 reason,
667503dd 8247 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8248{
8249 struct sk_buff *msg;
8250 void *hdr;
8251
58050fce 8252 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8253 if (!msg)
8254 return;
8255
8256 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8257 if (!hdr) {
8258 nlmsg_free(msg);
8259 return;
8260 }
8261
9360ffd1
DM		 8262 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8263 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8264 (from_ap && reason &&
8265 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8266 (from_ap &&
8267 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8268 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8269 goto nla_put_failure;
b23aa676 8270
3b7b72ee 8271 genlmsg_end(msg, hdr);
b23aa676 8272
463d0183
JB		 8273 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8274 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8275 return;
8276
8277 nla_put_failure:
8278 genlmsg_cancel(msg, hdr);
8279 nlmsg_free(msg);
8280
8281}
8282
04a773ad
JB		 8283void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8284 struct net_device *netdev, const u8 *bssid,
8285 gfp_t gfp)
8286{
8287 struct sk_buff *msg;
8288 void *hdr;
8289
fd2120ca 8290 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 8291 if (!msg)
8292 return;
8293
8294 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8295 if (!hdr) {
8296 nlmsg_free(msg);
8297 return;
8298 }
8299
9360ffd1
DM		 8300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8301 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8302 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8303 goto nla_put_failure;
04a773ad 8304
3b7b72ee 8305 genlmsg_end(msg, hdr);
04a773ad 8306
463d0183
JB		 8307 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8308 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 8309 return;
8310
8311 nla_put_failure:
8312 genlmsg_cancel(msg, hdr);
8313 nlmsg_free(msg);
8314}
8315
c93b5e71
JC		 8316void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8317 struct net_device *netdev,
8318 const u8 *macaddr, const u8* ie, u8 ie_len,
8319 gfp_t gfp)
8320{
8321 struct sk_buff *msg;
8322 void *hdr;
8323
8324 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8325 if (!msg)
8326 return;
8327
8328 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8329 if (!hdr) {
8330 nlmsg_free(msg);
8331 return;
8332 }
8333
9360ffd1
DM		 8334 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8335 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8336 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8337 (ie_len && ie &&
8338 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8339 goto nla_put_failure;
c93b5e71 8340
3b7b72ee 8341 genlmsg_end(msg, hdr);
c93b5e71
JC		 8342
8343 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8344 nl80211_mlme_mcgrp.id, gfp);
8345 return;
8346
8347 nla_put_failure:
8348 genlmsg_cancel(msg, hdr);
8349 nlmsg_free(msg);
8350}
8351
a3b8b056
JM		 8352void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8353 struct net_device *netdev, const u8 *addr,
8354 enum nl80211_key_type key_type, int key_id,
e6d6e342 8355 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 8356{
8357 struct sk_buff *msg;
8358 void *hdr;
8359
e6d6e342 8360 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 8361 if (!msg)
8362 return;
8363
8364 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8365 if (!hdr) {
8366 nlmsg_free(msg);
8367 return;
8368 }
8369
9360ffd1
DM		 8370 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8371 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8372 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8373 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8374 (key_id != -1 &&
8375 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8376 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8377 goto nla_put_failure;
a3b8b056 8378
3b7b72ee 8379 genlmsg_end(msg, hdr);
a3b8b056 8380
463d0183
JB		 8381 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8382 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 8383 return;
8384
8385 nla_put_failure:
8386 genlmsg_cancel(msg, hdr);
8387 nlmsg_free(msg);
8388}
8389
6bad8766
LR		 8390void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8391 struct ieee80211_channel *channel_before,
8392 struct ieee80211_channel *channel_after)
8393{
8394 struct sk_buff *msg;
8395 void *hdr;
8396 struct nlattr *nl_freq;
8397
fd2120ca 8398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 8399 if (!msg)
8400 return;
8401
8402 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8403 if (!hdr) {
8404 nlmsg_free(msg);
8405 return;
8406 }
8407
8408 /*
8409 * Since we are applying the beacon hint to a wiphy we know its
8410 * wiphy_idx is valid
8411 */
9360ffd1
DM		 8412 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8413 goto nla_put_failure;
6bad8766
LR		 8414
8415 /* Before */
8416 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8417 if (!nl_freq)
8418 goto nla_put_failure;
8419 if (nl80211_msg_put_channel(msg, channel_before))
8420 goto nla_put_failure;
8421 nla_nest_end(msg, nl_freq);
8422
8423 /* After */
8424 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8425 if (!nl_freq)
8426 goto nla_put_failure;
8427 if (nl80211_msg_put_channel(msg, channel_after))
8428 goto nla_put_failure;
8429 nla_nest_end(msg, nl_freq);
8430
3b7b72ee 8431 genlmsg_end(msg, hdr);
6bad8766 8432
463d0183
JB		 8433 rcu_read_lock();
8434 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8435 GFP_ATOMIC);
8436 rcu_read_unlock();
6bad8766
LR		 8437
8438 return;
8439
8440nla_put_failure:
8441 genlmsg_cancel(msg, hdr);
8442 nlmsg_free(msg);
8443}
8444
9588bbd5
JM		 8445static void nl80211_send_remain_on_chan_event(
8446 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 8447 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8448 struct ieee80211_channel *chan,
9588bbd5
JM		 8449 unsigned int duration, gfp_t gfp)
8450{
8451 struct sk_buff *msg;
8452 void *hdr;
8453
8454 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8455 if (!msg)
8456 return;
8457
8458 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8459 if (!hdr) {
8460 nlmsg_free(msg);
8461 return;
8462 }
8463
9360ffd1 8464 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8465 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8466 wdev->netdev->ifindex)) ||
00f53350 8467 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 8468 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 8469 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
8470 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 8471 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8472 goto nla_put_failure;
9588bbd5 8473
9360ffd1
DM		 8474 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8475 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8476 goto nla_put_failure;
9588bbd5 8477
3b7b72ee 8478 genlmsg_end(msg, hdr);
9588bbd5
JM		 8479
8480 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8481 nl80211_mlme_mcgrp.id, gfp);
8482 return;
8483
8484 nla_put_failure:
8485 genlmsg_cancel(msg, hdr);
8486 nlmsg_free(msg);
8487}
8488
8489void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 8490 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8491 struct ieee80211_channel *chan,
9588bbd5
JM		 8492 unsigned int duration, gfp_t gfp)
8493{
8494 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 8495 rdev, wdev, cookie, chan,
42d97a59 8496 duration, gfp);
9588bbd5
JM		 8497}
8498
8499void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 8500 struct cfg80211_registered_device *rdev,
8501 struct wireless_dev *wdev,
42d97a59 8502 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9588bbd5
JM		 8503{
8504 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 8505 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5
JM		 8506}
8507
98b62183
JB		 8508void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8509 struct net_device *dev, const u8 *mac_addr,
8510 struct station_info *sinfo, gfp_t gfp)
8511{
8512 struct sk_buff *msg;
8513
58050fce 8514 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 8515 if (!msg)
8516 return;
8517
66266b3a
JL		 8518 if (nl80211_send_station(msg, 0, 0, 0,
8519 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8520 nlmsg_free(msg);
8521 return;
8522 }
8523
8524 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8525 nl80211_mlme_mcgrp.id, gfp);
8526}
8527
ec15e68b
JM		 8528void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8529 struct net_device *dev, const u8 *mac_addr,
8530 gfp_t gfp)
8531{
8532 struct sk_buff *msg;
8533 void *hdr;
8534
58050fce 8535 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 8536 if (!msg)
8537 return;
8538
8539 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8540 if (!hdr) {
8541 nlmsg_free(msg);
8542 return;
8543 }
8544
9360ffd1
DM		 8545 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8546 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8547 goto nla_put_failure;
ec15e68b 8548
3b7b72ee 8549 genlmsg_end(msg, hdr);
ec15e68b
JM		 8550
8551 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8552 nl80211_mlme_mcgrp.id, gfp);
8553 return;
8554
8555 nla_put_failure:
8556 genlmsg_cancel(msg, hdr);
8557 nlmsg_free(msg);
8558}
8559
ed44a951
PP		 8560void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8561 struct net_device *dev, const u8 *mac_addr,
8562 enum nl80211_connect_failed_reason reason,
8563 gfp_t gfp)
8564{
8565 struct sk_buff *msg;
8566 void *hdr;
8567
8568 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8569 if (!msg)
8570 return;
8571
8572 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8573 if (!hdr) {
8574 nlmsg_free(msg);
8575 return;
8576 }
8577
8578 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8579 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8580 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8581 goto nla_put_failure;
8582
8583 genlmsg_end(msg, hdr);
8584
8585 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8586 nl80211_mlme_mcgrp.id, gfp);
8587 return;
8588
8589 nla_put_failure:
8590 genlmsg_cancel(msg, hdr);
8591 nlmsg_free(msg);
8592}
8593
b92ab5d8
JB		 8594static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8595 const u8 *addr, gfp_t gfp)
28946da7
JB		 8596{
8597 struct wireless_dev *wdev = dev->ieee80211_ptr;
8598 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8599 struct sk_buff *msg;
8600 void *hdr;
8601 int err;
15e47304 8602 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 8603
15e47304 8604 if (!nlportid)
28946da7
JB		 8605 return false;
8606
8607 msg = nlmsg_new(100, gfp);
8608 if (!msg)
8609 return true;
8610
b92ab5d8 8611 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8612 if (!hdr) {
8613 nlmsg_free(msg);
8614 return true;
8615 }
8616
9360ffd1
DM		 8617 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8618 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8619 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8620 goto nla_put_failure;
28946da7
JB		 8621
8622 err = genlmsg_end(msg, hdr);
8623 if (err < 0) {
8624 nlmsg_free(msg);
8625 return true;
8626 }
8627
15e47304 8628 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 8629 return true;
8630
8631 nla_put_failure:
8632 genlmsg_cancel(msg, hdr);
8633 nlmsg_free(msg);
8634 return true;
8635}
8636
b92ab5d8
JB		 8637bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8638{
8639 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8640 addr, gfp);
8641}
8642
8643bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8644 const u8 *addr, gfp_t gfp)
8645{
8646 return __nl80211_unexpected_frame(dev,
8647 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8648 addr, gfp);
8649}
8650
2e161f78 8651int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 8652 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 8653 int freq, int sig_dbm,
8654 const u8 *buf, size_t len, gfp_t gfp)
026331c4 8655{
71bbc994 8656 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8657 struct sk_buff *msg;
8658 void *hdr;
026331c4
JM		 8659
8660 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8661 if (!msg)
8662 return -ENOMEM;
8663
2e161f78 8664 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8665 if (!hdr) {
8666 nlmsg_free(msg);
8667 return -ENOMEM;
8668 }
8669
9360ffd1 8670 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8671 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8672 netdev->ifindex)) ||
9360ffd1
DM		 8673 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8674 (sig_dbm &&
8675 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8676 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8677 goto nla_put_failure;
026331c4 8678
3b7b72ee 8679 genlmsg_end(msg, hdr);
026331c4 8680
15e47304 8681 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 8682
8683 nla_put_failure:
8684 genlmsg_cancel(msg, hdr);
8685 nlmsg_free(msg);
8686 return -ENOBUFS;
8687}
8688
2e161f78 8689void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 8690 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 8691 const u8 *buf, size_t len, bool ack,
8692 gfp_t gfp)
026331c4 8693{
71bbc994 8694 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8695 struct sk_buff *msg;
8696 void *hdr;
8697
8698 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8699 if (!msg)
8700 return;
8701
2e161f78 8702 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8703 if (!hdr) {
8704 nlmsg_free(msg);
8705 return;
8706 }
8707
9360ffd1 8708 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8709 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8710 netdev->ifindex)) ||
9360ffd1
DM		 8711 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8712 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8713 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8714 goto nla_put_failure;
026331c4 8715
3b7b72ee 8716 genlmsg_end(msg, hdr);
026331c4
JM		 8717
8718 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8719 return;
8720
8721 nla_put_failure:
8722 genlmsg_cancel(msg, hdr);
8723 nlmsg_free(msg);
8724}
8725
d6dc1a38
JO		 8726void
8727nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8728 struct net_device *netdev,
8729 enum nl80211_cqm_rssi_threshold_event rssi_event,
8730 gfp_t gfp)
8731{
8732 struct sk_buff *msg;
8733 struct nlattr *pinfoattr;
8734 void *hdr;
8735
58050fce 8736 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 8737 if (!msg)
8738 return;
8739
8740 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8741 if (!hdr) {
8742 nlmsg_free(msg);
8743 return;
8744 }
8745
9360ffd1
DM		 8746 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8747 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8748 goto nla_put_failure;
d6dc1a38
JO		 8749
8750 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8751 if (!pinfoattr)
8752 goto nla_put_failure;
8753
9360ffd1
DM		 8754 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8755 rssi_event))
8756 goto nla_put_failure;
d6dc1a38
JO		 8757
8758 nla_nest_end(msg, pinfoattr);
8759
3b7b72ee 8760 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8761
8762 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8763 nl80211_mlme_mcgrp.id, gfp);
8764 return;
8765
8766 nla_put_failure:
8767 genlmsg_cancel(msg, hdr);
8768 nlmsg_free(msg);
8769}
8770
e5497d76
JB		 8771void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8772 struct net_device *netdev, const u8 *bssid,
8773 const u8 *replay_ctr, gfp_t gfp)
8774{
8775 struct sk_buff *msg;
8776 struct nlattr *rekey_attr;
8777 void *hdr;
8778
58050fce 8779 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 8780 if (!msg)
8781 return;
8782
8783 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8784 if (!hdr) {
8785 nlmsg_free(msg);
8786 return;
8787 }
8788
9360ffd1
DM		 8789 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8790 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8791 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8792 goto nla_put_failure;
e5497d76
JB		 8793
8794 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8795 if (!rekey_attr)
8796 goto nla_put_failure;
8797
9360ffd1
DM		 8798 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8799 NL80211_REPLAY_CTR_LEN, replay_ctr))
8800 goto nla_put_failure;
e5497d76
JB		 8801
8802 nla_nest_end(msg, rekey_attr);
8803
3b7b72ee 8804 genlmsg_end(msg, hdr);
e5497d76
JB		 8805
8806 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8807 nl80211_mlme_mcgrp.id, gfp);
8808 return;
8809
8810 nla_put_failure:
8811 genlmsg_cancel(msg, hdr);
8812 nlmsg_free(msg);
8813}
8814
c9df56b4
JM		 8815void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8816 struct net_device *netdev, int index,
8817 const u8 *bssid, bool preauth, gfp_t gfp)
8818{
8819 struct sk_buff *msg;
8820 struct nlattr *attr;
8821 void *hdr;
8822
58050fce 8823 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 8824 if (!msg)
8825 return;
8826
8827 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8828 if (!hdr) {
8829 nlmsg_free(msg);
8830 return;
8831 }
8832
9360ffd1
DM		 8833 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8834 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8835 goto nla_put_failure;
c9df56b4
JM		 8836
8837 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8838 if (!attr)
8839 goto nla_put_failure;
8840
9360ffd1
DM		 8841 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8842 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8843 (preauth &&
8844 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8845 goto nla_put_failure;
c9df56b4
JM		 8846
8847 nla_nest_end(msg, attr);
8848
3b7b72ee 8849 genlmsg_end(msg, hdr);
c9df56b4
JM		 8850
8851 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8852 nl80211_mlme_mcgrp.id, gfp);
8853 return;
8854
8855 nla_put_failure:
8856 genlmsg_cancel(msg, hdr);
8857 nlmsg_free(msg);
8858}
8859
5314526b 8860void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
683b6d3b
JB		 8861 struct net_device *netdev,
8862 struct cfg80211_chan_def *chandef, gfp_t gfp)
5314526b
TP		 8863{
8864 struct sk_buff *msg;
8865 void *hdr;
8866
58050fce 8867 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 8868 if (!msg)
8869 return;
8870
8871 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8872 if (!hdr) {
8873 nlmsg_free(msg);
8874 return;
8875 }
8876
683b6d3b
JB		 8877 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8878 goto nla_put_failure;
8879
8880 if (nl80211_send_chandef(msg, chandef))
7eab0f64 8881 goto nla_put_failure;
5314526b
TP		 8882
8883 genlmsg_end(msg, hdr);
8884
8885 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8886 nl80211_mlme_mcgrp.id, gfp);
8887 return;
8888
8889 nla_put_failure:
8890 genlmsg_cancel(msg, hdr);
8891 nlmsg_free(msg);
8892}
8893
84f10708
TP		 8894void
8895nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8896 struct net_device *netdev, const u8 *peer,
8897 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8898{
8899 struct sk_buff *msg;
8900 struct nlattr *pinfoattr;
8901 void *hdr;
8902
8903 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8904 if (!msg)
8905 return;
8906
8907 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8908 if (!hdr) {
8909 nlmsg_free(msg);
8910 return;
8911 }
8912
8913 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8914 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8915 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8916 goto nla_put_failure;
8917
8918 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8919 if (!pinfoattr)
8920 goto nla_put_failure;
8921
8922 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8923 goto nla_put_failure;
8924
8925 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8926 goto nla_put_failure;
8927
8928 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8929 goto nla_put_failure;
8930
8931 nla_nest_end(msg, pinfoattr);
8932
8933 genlmsg_end(msg, hdr);
8934
8935 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8936 nl80211_mlme_mcgrp.id, gfp);
8937 return;
8938
8939 nla_put_failure:
8940 genlmsg_cancel(msg, hdr);
8941 nlmsg_free(msg);
8942}
8943
c063dbf5
JB		 8944void
8945nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8946 struct net_device *netdev, const u8 *peer,
8947 u32 num_packets, gfp_t gfp)
8948{
8949 struct sk_buff *msg;
8950 struct nlattr *pinfoattr;
8951 void *hdr;
8952
58050fce 8953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 8954 if (!msg)
8955 return;
8956
8957 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8958 if (!hdr) {
8959 nlmsg_free(msg);
8960 return;
8961 }
8962
9360ffd1
DM		 8963 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8964 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8965 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8966 goto nla_put_failure;
c063dbf5
JB		 8967
8968 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8969 if (!pinfoattr)
8970 goto nla_put_failure;
8971
9360ffd1
DM		 8972 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8973 goto nla_put_failure;
c063dbf5
JB		 8974
8975 nla_nest_end(msg, pinfoattr);
8976
3b7b72ee 8977 genlmsg_end(msg, hdr);
c063dbf5
JB		 8978
8979 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8980 nl80211_mlme_mcgrp.id, gfp);
8981 return;
8982
8983 nla_put_failure:
8984 genlmsg_cancel(msg, hdr);
8985 nlmsg_free(msg);
8986}
8987
7f6cf311
JB		 8988void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8989 u64 cookie, bool acked, gfp_t gfp)
8990{
8991 struct wireless_dev *wdev = dev->ieee80211_ptr;
8992 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8993 struct sk_buff *msg;
8994 void *hdr;
8995 int err;
8996
4ee3e063
BL		 8997 trace_cfg80211_probe_status(dev, addr, cookie, acked);
8998
58050fce 8999 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 9000
7f6cf311
JB		 9001 if (!msg)
9002 return;
9003
9004 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9005 if (!hdr) {
9006 nlmsg_free(msg);
9007 return;
9008 }
9009
9360ffd1
DM		 9010 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9011 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9012 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9013 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9014 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9015 goto nla_put_failure;
7f6cf311
JB		 9016
9017 err = genlmsg_end(msg, hdr);
9018 if (err < 0) {
9019 nlmsg_free(msg);
9020 return;
9021 }
9022
9023 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9024 nl80211_mlme_mcgrp.id, gfp);
9025 return;
9026
9027 nla_put_failure:
9028 genlmsg_cancel(msg, hdr);
9029 nlmsg_free(msg);
9030}
9031EXPORT_SYMBOL(cfg80211_probe_status);
9032
5e760230
JB		 9033void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9034 const u8 *frame, size_t len,
37c73b5f 9035 int freq, int sig_dbm)
5e760230
JB		 9036{
9037 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9038 struct sk_buff *msg;
9039 void *hdr;
37c73b5f 9040 struct cfg80211_beacon_registration *reg;
5e760230 9041
4ee3e063
BL		 9042 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9043
37c73b5f
BG		 9044 spin_lock_bh(&rdev->beacon_registrations_lock);
9045 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9046 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9047 if (!msg) {
9048 spin_unlock_bh(&rdev->beacon_registrations_lock);
9049 return;
9050 }
5e760230 9051
37c73b5f
BG		 9052 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9053 if (!hdr)
9054 goto nla_put_failure;
5e760230 9055
37c73b5f
BG		 9056 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9057 (freq &&
9058 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9059 (sig_dbm &&
9060 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9061 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9062 goto nla_put_failure;
5e760230 9063
37c73b5f 9064 genlmsg_end(msg, hdr);
5e760230 9065
37c73b5f
BG		 9066 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9067 }
9068 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9069 return;
9070
9071 nla_put_failure:
37c73b5f
BG		 9072 spin_unlock_bh(&rdev->beacon_registrations_lock);
9073 if (hdr)
9074 genlmsg_cancel(msg, hdr);
5e760230
JB		 9075 nlmsg_free(msg);
9076}
9077EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9078
3475b094
JM		 9079void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9080 enum nl80211_tdls_operation oper,
9081 u16 reason_code, gfp_t gfp)
9082{
9083 struct wireless_dev *wdev = dev->ieee80211_ptr;
9084 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9085 struct sk_buff *msg;
9086 void *hdr;
9087 int err;
9088
9089 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9090 reason_code);
9091
9092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9093 if (!msg)
9094 return;
9095
9096 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9097 if (!hdr) {
9098 nlmsg_free(msg);
9099 return;
9100 }
9101
9102 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9103 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9104 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9105 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9106 (reason_code > 0 &&
9107 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9108 goto nla_put_failure;
9109
9110 err = genlmsg_end(msg, hdr);
9111 if (err < 0) {
9112 nlmsg_free(msg);
9113 return;
9114 }
9115
9116 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9117 nl80211_mlme_mcgrp.id, gfp);
9118 return;
9119
9120 nla_put_failure:
9121 genlmsg_cancel(msg, hdr);
9122 nlmsg_free(msg);
9123}
9124EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9125
026331c4
JM		 9126static int nl80211_netlink_notify(struct notifier_block * nb,
9127 unsigned long state,
9128 void *_notify)
9129{
9130 struct netlink_notify *notify = _notify;
9131 struct cfg80211_registered_device *rdev;
9132 struct wireless_dev *wdev;
37c73b5f 9133 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 9134
9135 if (state != NETLINK_URELEASE)
9136 return NOTIFY_DONE;
9137
9138 rcu_read_lock();
9139
5e760230 9140 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 9141 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 9142 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 9143
9144 spin_lock_bh(&rdev->beacon_registrations_lock);
9145 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9146 list) {
9147 if (reg->nlportid == notify->portid) {
9148 list_del(&reg->list);
9149 kfree(reg);
9150 break;
9151 }
9152 }
9153 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 9154 }
026331c4
JM		 9155
9156 rcu_read_unlock();
9157
9158 return NOTIFY_DONE;
9159}
9160
9161static struct notifier_block nl80211_netlink_notifier = {
9162 .notifier_call = nl80211_netlink_notify,
9163};
9164
55682965
JB		 9165/* initialisation/exit functions */
9166
9167int nl80211_init(void)
9168{
0d63cbb5 9169 int err;
55682965 9170
0d63cbb5
MM		 9171 err = genl_register_family_with_ops(&nl80211_fam,
9172 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 9173 if (err)
9174 return err;
9175
55682965
JB		 9176 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9177 if (err)
9178 goto err_out;
9179
2a519311
JB		 9180 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9181 if (err)
9182 goto err_out;
9183
73d54c9e
LR		 9184 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9185 if (err)
9186 goto err_out;
9187
6039f6d2
JM		 9188 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9189 if (err)
9190 goto err_out;
9191
aff89a9b
JB		 9192#ifdef CONFIG_NL80211_TESTMODE
9193 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9194 if (err)
9195 goto err_out;
9196#endif
9197
026331c4
JM		 9198 err = netlink_register_notifier(&nl80211_netlink_notifier);
9199 if (err)
9200 goto err_out;
9201
55682965
JB		 9202 return 0;
9203 err_out:
9204 genl_unregister_family(&nl80211_fam);
9205 return err;
9206}
9207
9208void nl80211_exit(void)
9209{
026331c4 9210 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 9211 genl_unregister_family(&nl80211_fam);
9212}
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