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cfg80211: fix some tracing output issues
[linux-2.6-block.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
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
3d9d1d66
JB		 1423 if (!cfg80211_chan_def_valid(chandef))
1424 return -EINVAL;
1425
1426 switch (chandef->width) {
1427 case NL80211_CHAN_WIDTH_20:
1428 if (!ht_cap->ht_supported)
1429 return -EINVAL;
1430 case NL80211_CHAN_WIDTH_20_NOHT:
1431 width = 20;
683b6d3b 1432 break;
3d9d1d66
JB		 1433 case NL80211_CHAN_WIDTH_40:
1434 width = 40;
1435 /* quick early regulatory check */
1436 if (chandef->center_freq1 < control_freq &&
1437 chandef->chan->flags & IEEE80211_CHAN_NO_HT40MINUS)
1438 return -EINVAL;
1439 if (chandef->center_freq1 > control_freq &&
1440 chandef->chan->flags & IEEE80211_CHAN_NO_HT40PLUS)
1441 return -EINVAL;
1442 if (!ht_cap->ht_supported)
683b6d3b 1443 return -EINVAL;
683b6d3b
JB		 1444 if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
1445 ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)
1446 return -EINVAL;
3d9d1d66
JB		 1447 break;
1448 case NL80211_CHAN_WIDTH_80:
1449 width = 80;
1450 if (!vht_cap->vht_supported)
683b6d3b 1451 return -EINVAL;
3d9d1d66
JB		 1452 break;
1453 case NL80211_CHAN_WIDTH_80P80:
1454 width = 80;
1455 if (!vht_cap->vht_supported)
1456 return -EINVAL;
1457 if (!(vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ))
1458 return -EINVAL;
1459 break;
1460 case NL80211_CHAN_WIDTH_160:
1461 width = 160;
1462 if (!vht_cap->vht_supported)
1463 return -EINVAL;
1464 if (!(vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ))
683b6d3b
JB		 1465 return -EINVAL;
1466 break;
3d9d1d66
JB		 1467 default:
1468 return -EINVAL;
683b6d3b
JB		 1469 }
1470
3d9d1d66
JB		 1471 if (!cfg80211_secondary_chans_ok(&rdev->wiphy, chandef->center_freq1,
1472 width, IEEE80211_CHAN_DISABLED))
1473 return -EINVAL;
1474 if (chandef->center_freq2 &&
1475 !cfg80211_secondary_chans_ok(&rdev->wiphy, chandef->center_freq2,
1476 width, IEEE80211_CHAN_DISABLED))
1477 return -EINVAL;
1478
1479 /* TODO: missing regulatory check on bandwidth */
1480
683b6d3b
JB		 1481 return 0;
1482}
1483
f444de05
JB		 1484static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1485 struct wireless_dev *wdev,
1486 struct genl_info *info)
1487{
683b6d3b 1488 struct cfg80211_chan_def chandef;
f444de05 1489 int result;
e8c9bd5b
JB		 1490 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1491
1492 if (wdev)
1493 iftype = wdev->iftype;
f444de05 1494
f444de05
JB		 1495 if (!nl80211_can_set_dev_channel(wdev))
1496 return -EOPNOTSUPP;
1497
683b6d3b
JB		 1498 result = nl80211_parse_chandef(rdev, info, &chandef);
1499 if (result)
1500 return result;
f444de05
JB		 1501
1502 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1503 switch (iftype) {
aa430da4
JB		 1504 case NL80211_IFTYPE_AP:
1505 case NL80211_IFTYPE_P2P_GO:
1506 if (wdev->beacon_interval) {
1507 result = -EBUSY;
1508 break;
1509 }
683b6d3b 1510 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1511 result = -EINVAL;
1512 break;
1513 }
683b6d3b 1514 wdev->preset_chandef = chandef;
aa430da4
JB		 1515 result = 0;
1516 break;
cc1d2806 1517 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1518 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1519 break;
e8c9bd5b 1520 case NL80211_IFTYPE_MONITOR:
683b6d3b 1521 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1522 break;
aa430da4 1523 default:
e8c9bd5b 1524 result = -EINVAL;
f444de05
JB		 1525 }
1526 mutex_unlock(&rdev->devlist_mtx);
1527
1528 return result;
1529}
1530
1531static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1532{
4c476991
JB		 1533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1534 struct net_device *netdev = info->user_ptr[1];
f444de05 1535
4c476991 1536 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1537}
1538
e8347eba
BJ		 1539static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1540{
43b19952
JB		 1541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1542 struct net_device *dev = info->user_ptr[1];
1543 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1544 const u8 *bssid;
e8347eba
BJ		 1545
1546 if (!info->attrs[NL80211_ATTR_MAC])
1547 return -EINVAL;
1548
43b19952
JB		 1549 if (netif_running(dev))
1550 return -EBUSY;
e8347eba 1551
43b19952
JB		 1552 if (!rdev->ops->set_wds_peer)
1553 return -EOPNOTSUPP;
e8347eba 1554
43b19952
JB		 1555 if (wdev->iftype != NL80211_IFTYPE_WDS)
1556 return -EOPNOTSUPP;
e8347eba
BJ		 1557
1558 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1559 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1560}
1561
1562
55682965
JB		 1563static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1564{
1565 struct cfg80211_registered_device *rdev;
f444de05
JB		 1566 struct net_device *netdev = NULL;
1567 struct wireless_dev *wdev;
a1e567c8 1568 int result = 0, rem_txq_params = 0;
31888487 1569 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1570 u32 changed;
1571 u8 retry_short = 0, retry_long = 0;
1572 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1573 u8 coverage_class = 0;
55682965 1574
f444de05
JB		 1575 /*
1576 * Try to find the wiphy and netdev. Normally this
1577 * function shouldn't need the netdev, but this is
1578 * done for backward compatibility -- previously
1579 * setting the channel was done per wiphy, but now
1580 * it is per netdev. Previous userland like hostapd
1581 * also passed a netdev to set_wiphy, so that it is
1582 * possible to let that go to the right netdev!
1583 */
4bbf4d56
JB		 1584 mutex_lock(&cfg80211_mutex);
1585
f444de05
JB		 1586 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1587 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1588
1589 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1590 if (netdev && netdev->ieee80211_ptr) {
1591 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1592 mutex_lock(&rdev->mtx);
1593 } else
1594 netdev = NULL;
4bbf4d56
JB		 1595 }
1596
f444de05 1597 if (!netdev) {
878d9ec7
JB		 1598 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1599 info->attrs);
f444de05
JB		 1600 if (IS_ERR(rdev)) {
1601 mutex_unlock(&cfg80211_mutex);
4c476991 1602 return PTR_ERR(rdev);
f444de05
JB		 1603 }
1604 wdev = NULL;
1605 netdev = NULL;
1606 result = 0;
1607
1608 mutex_lock(&rdev->mtx);
71fe96bf 1609 } else
f444de05 1610 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1611
1612 /*
1613 * end workaround code, by now the rdev is available
1614 * and locked, and wdev may or may not be NULL.
1615 */
4bbf4d56
JB		 1616
1617 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1618 result = cfg80211_dev_rename(
1619 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1620
1621 mutex_unlock(&cfg80211_mutex);
1622
1623 if (result)
1624 goto bad_res;
31888487
JM		 1625
1626 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1627 struct ieee80211_txq_params txq_params;
1628 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1629
1630 if (!rdev->ops->set_txq_params) {
1631 result = -EOPNOTSUPP;
1632 goto bad_res;
1633 }
1634
f70f01c2
EP		 1635 if (!netdev) {
1636 result = -EINVAL;
1637 goto bad_res;
1638 }
1639
133a3ff2
JB		 1640 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1641 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1642 result = -EINVAL;
1643 goto bad_res;
1644 }
1645
2b5f8b0b
JB		 1646 if (!netif_running(netdev)) {
1647 result = -ENETDOWN;
1648 goto bad_res;
1649 }
1650
31888487
JM		 1651 nla_for_each_nested(nl_txq_params,
1652 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1653 rem_txq_params) {
1654 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1655 nla_data(nl_txq_params),
1656 nla_len(nl_txq_params),
1657 txq_params_policy);
1658 result = parse_txq_params(tb, &txq_params);
1659 if (result)
1660 goto bad_res;
1661
e35e4d28
HG		 1662 result = rdev_set_txq_params(rdev, netdev,
1663 &txq_params);
31888487
JM		 1664 if (result)
1665 goto bad_res;
1666 }
1667 }
55682965 1668
72bdcf34 1669 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1670 result = __nl80211_set_channel(rdev,
1671 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1672 info);
72bdcf34
JM		 1673 if (result)
1674 goto bad_res;
1675 }
1676
98d2ff8b 1677 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1678 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1679 enum nl80211_tx_power_setting type;
1680 int idx, mbm = 0;
1681
c8442118
JB		 1682 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1683 txp_wdev = NULL;
1684
98d2ff8b 1685 if (!rdev->ops->set_tx_power) {
60ea385f 1686 result = -EOPNOTSUPP;
98d2ff8b
JO		 1687 goto bad_res;
1688 }
1689
1690 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1691 type = nla_get_u32(info->attrs[idx]);
1692
1693 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1694 (type != NL80211_TX_POWER_AUTOMATIC)) {
1695 result = -EINVAL;
1696 goto bad_res;
1697 }
1698
1699 if (type != NL80211_TX_POWER_AUTOMATIC) {
1700 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1701 mbm = nla_get_u32(info->attrs[idx]);
1702 }
1703
c8442118 1704 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1705 if (result)
1706 goto bad_res;
1707 }
1708
afe0cbf8
BR		 1709 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1710 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1711 u32 tx_ant, rx_ant;
7f531e03
BR		 1712 if ((!rdev->wiphy.available_antennas_tx &&
1713 !rdev->wiphy.available_antennas_rx) ||
1714 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1715 result = -EOPNOTSUPP;
1716 goto bad_res;
1717 }
1718
1719 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1720 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1721
a7ffac95 1722 /* reject antenna configurations which don't match the
7f531e03
BR		 1723 * available antenna masks, except for the "all" mask */
1724 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1725 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1726 result = -EINVAL;
1727 goto bad_res;
1728 }
1729
7f531e03
BR		 1730 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1731 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1732
e35e4d28 1733 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1734 if (result)
1735 goto bad_res;
1736 }
1737
b9a5f8ca
JM		 1738 changed = 0;
1739
1740 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1741 retry_short = nla_get_u8(
1742 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1743 if (retry_short == 0) {
1744 result = -EINVAL;
1745 goto bad_res;
1746 }
1747 changed |= WIPHY_PARAM_RETRY_SHORT;
1748 }
1749
1750 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1751 retry_long = nla_get_u8(
1752 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1753 if (retry_long == 0) {
1754 result = -EINVAL;
1755 goto bad_res;
1756 }
1757 changed |= WIPHY_PARAM_RETRY_LONG;
1758 }
1759
1760 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1761 frag_threshold = nla_get_u32(
1762 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1763 if (frag_threshold < 256) {
1764 result = -EINVAL;
1765 goto bad_res;
1766 }
1767 if (frag_threshold != (u32) -1) {
1768 /*
1769 * Fragments (apart from the last one) are required to
1770 * have even length. Make the fragmentation code
1771 * simpler by stripping LSB should someone try to use
1772 * odd threshold value.
1773 */
1774 frag_threshold &= ~0x1;
1775 }
1776 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1777 }
1778
1779 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1780 rts_threshold = nla_get_u32(
1781 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1782 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1783 }
1784
81077e82
LT		 1785 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1786 coverage_class = nla_get_u8(
1787 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1788 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1789 }
1790
b9a5f8ca
JM		 1791 if (changed) {
1792 u8 old_retry_short, old_retry_long;
1793 u32 old_frag_threshold, old_rts_threshold;
81077e82 1794 u8 old_coverage_class;
b9a5f8ca
JM		 1795
1796 if (!rdev->ops->set_wiphy_params) {
1797 result = -EOPNOTSUPP;
1798 goto bad_res;
1799 }
1800
1801 old_retry_short = rdev->wiphy.retry_short;
1802 old_retry_long = rdev->wiphy.retry_long;
1803 old_frag_threshold = rdev->wiphy.frag_threshold;
1804 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1805 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1806
1807 if (changed & WIPHY_PARAM_RETRY_SHORT)
1808 rdev->wiphy.retry_short = retry_short;
1809 if (changed & WIPHY_PARAM_RETRY_LONG)
1810 rdev->wiphy.retry_long = retry_long;
1811 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1812 rdev->wiphy.frag_threshold = frag_threshold;
1813 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1814 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1815 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1816 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 1817
e35e4d28 1818 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 1819 if (result) {
1820 rdev->wiphy.retry_short = old_retry_short;
1821 rdev->wiphy.retry_long = old_retry_long;
1822 rdev->wiphy.frag_threshold = old_frag_threshold;
1823 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1824 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1825 }
1826 }
72bdcf34 1827
306d6112 1828 bad_res:
4bbf4d56 1829 mutex_unlock(&rdev->mtx);
f444de05
JB		 1830 if (netdev)
1831 dev_put(netdev);
55682965
JB		 1832 return result;
1833}
1834
71bbc994
JB		 1835static inline u64 wdev_id(struct wireless_dev *wdev)
1836{
1837 return (u64)wdev->identifier |
1838 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1839}
55682965 1840
683b6d3b
JB		 1841static int nl80211_send_chandef(struct sk_buff *msg,
1842 struct cfg80211_chan_def *chandef)
1843{
3d9d1d66
JB		 1844 WARN_ON(!cfg80211_chan_def_valid(chandef));
1845
683b6d3b
JB		 1846 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1847 chandef->chan->center_freq))
1848 return -ENOBUFS;
3d9d1d66
JB		 1849 switch (chandef->width) {
1850 case NL80211_CHAN_WIDTH_20_NOHT:
1851 case NL80211_CHAN_WIDTH_20:
1852 case NL80211_CHAN_WIDTH_40:
1853 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1854 cfg80211_get_chandef_type(chandef)))
1855 return -ENOBUFS;
1856 break;
1857 default:
1858 break;
1859 }
1860 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1861 return -ENOBUFS;
1862 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1863 return -ENOBUFS;
1864 if (chandef->center_freq2 &&
1865 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 1866 return -ENOBUFS;
1867 return 0;
1868}
1869
15e47304 1870static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 1871 struct cfg80211_registered_device *rdev,
72fb2abc 1872 struct wireless_dev *wdev)
55682965 1873{
72fb2abc 1874 struct net_device *dev = wdev->netdev;
55682965
JB		 1875 void *hdr;
1876
15e47304 1877 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 1878 if (!hdr)
1879 return -1;
1880
72fb2abc
JB		 1881 if (dev &&
1882 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 1883 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 1884 goto nla_put_failure;
1885
1886 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1887 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 1888 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 1889 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 1890 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1891 rdev->devlist_generation ^
1892 (cfg80211_rdev_list_generation << 2)))
1893 goto nla_put_failure;
f5ea9120 1894
5b7ccaf3 1895 if (rdev->ops->get_channel) {
683b6d3b
JB		 1896 int ret;
1897 struct cfg80211_chan_def chandef;
1898
1899 ret = rdev_get_channel(rdev, wdev, &chandef);
1900 if (ret == 0) {
1901 if (nl80211_send_chandef(msg, &chandef))
1902 goto nla_put_failure;
1903 }
d91df0e3
PF		 1904 }
1905
b84e7a05
AQ		 1906 if (wdev->ssid_len) {
1907 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1908 goto nla_put_failure;
1909 }
1910
55682965
JB		 1911 return genlmsg_end(msg, hdr);
1912
1913 nla_put_failure:
bc3ed28c
TG		 1914 genlmsg_cancel(msg, hdr);
1915 return -EMSGSIZE;
55682965
JB		 1916}
1917
1918static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1919{
1920 int wp_idx = 0;
1921 int if_idx = 0;
1922 int wp_start = cb->args[0];
1923 int if_start = cb->args[1];
f5ea9120 1924 struct cfg80211_registered_device *rdev;
55682965
JB		 1925 struct wireless_dev *wdev;
1926
a1794390 1927 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1928 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1929 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1930 continue;
bba95fef
JB		 1931 if (wp_idx < wp_start) {
1932 wp_idx++;
55682965 1933 continue;
bba95fef 1934 }
55682965
JB		 1935 if_idx = 0;
1936
f5ea9120 1937 mutex_lock(&rdev->devlist_mtx);
89a54e48 1938 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1939 if (if_idx < if_start) {
1940 if_idx++;
55682965 1941 continue;
bba95fef 1942 }
15e47304 1943 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 1944 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 1945 rdev, wdev) < 0) {
f5ea9120 1946 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1947 goto out;
1948 }
1949 if_idx++;
55682965 1950 }
f5ea9120 1951 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1952
1953 wp_idx++;
55682965 1954 }
bba95fef 1955 out:
a1794390 1956 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1957
1958 cb->args[0] = wp_idx;
1959 cb->args[1] = if_idx;
1960
1961 return skb->len;
1962}
1963
1964static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1965{
1966 struct sk_buff *msg;
4c476991 1967 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 1968 struct wireless_dev *wdev = info->user_ptr[1];
55682965 1969
fd2120ca 1970 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1971 if (!msg)
4c476991 1972 return -ENOMEM;
55682965 1973
15e47304 1974 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 1975 dev, wdev) < 0) {
4c476991
JB		 1976 nlmsg_free(msg);
1977 return -ENOBUFS;
1978 }
55682965 1979
134e6375 1980 return genlmsg_reply(msg, info);
55682965
JB		 1981}
1982
66f7ac50
MW		 1983static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1984 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1985 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1986 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1987 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1988 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1989};
1990
1991static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1992{
1993 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1994 int flag;
1995
1996 *mntrflags = 0;
1997
1998 if (!nla)
1999 return -EINVAL;
2000
2001 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2002 nla, mntr_flags_policy))
2003 return -EINVAL;
2004
2005 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2006 if (flags[flag])
2007 *mntrflags |= (1<<flag);
2008
2009 return 0;
2010}
2011
9bc383de 2012static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2013 struct net_device *netdev, u8 use_4addr,
2014 enum nl80211_iftype iftype)
9bc383de 2015{
ad4bb6f8 2016 if (!use_4addr) {
f350a0a8 2017 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2018 return -EBUSY;
9bc383de 2019 return 0;
ad4bb6f8 2020 }
9bc383de
JB		 2021
2022 switch (iftype) {
2023 case NL80211_IFTYPE_AP_VLAN:
2024 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2025 return 0;
2026 break;
2027 case NL80211_IFTYPE_STATION:
2028 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2029 return 0;
2030 break;
2031 default:
2032 break;
2033 }
2034
2035 return -EOPNOTSUPP;
2036}
2037
55682965
JB		 2038static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2039{
4c476991 2040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2041 struct vif_params params;
e36d56b6 2042 int err;
04a773ad 2043 enum nl80211_iftype otype, ntype;
4c476991 2044 struct net_device *dev = info->user_ptr[1];
92ffe055 2045 u32 _flags, *flags = NULL;
ac7f9cfa 2046 bool change = false;
55682965 2047
2ec600d6
LCC		 2048 memset(&params, 0, sizeof(params));
2049
04a773ad 2050 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2051
723b038d 2052 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2053 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2054 if (otype != ntype)
ac7f9cfa 2055 change = true;
4c476991
JB		 2056 if (ntype > NL80211_IFTYPE_MAX)
2057 return -EINVAL;
723b038d
JB		 2058 }
2059
92ffe055 2060 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2061 struct wireless_dev *wdev = dev->ieee80211_ptr;
2062
4c476991
JB		 2063 if (ntype != NL80211_IFTYPE_MESH_POINT)
2064 return -EINVAL;
29cbe68c
JB		 2065 if (netif_running(dev))
2066 return -EBUSY;
2067
2068 wdev_lock(wdev);
2069 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2070 IEEE80211_MAX_MESH_ID_LEN);
2071 wdev->mesh_id_up_len =
2072 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2073 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2074 wdev->mesh_id_up_len);
2075 wdev_unlock(wdev);
2ec600d6
LCC		 2076 }
2077
8b787643
FF		 2078 if (info->attrs[NL80211_ATTR_4ADDR]) {
2079 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2080 change = true;
ad4bb6f8 2081 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2082 if (err)
4c476991 2083 return err;
8b787643
FF		 2084 } else {
2085 params.use_4addr = -1;
2086 }
2087
92ffe055 2088 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2089 if (ntype != NL80211_IFTYPE_MONITOR)
2090 return -EINVAL;
92ffe055
JB		 2091 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2092 &_flags);
ac7f9cfa 2093 if (err)
4c476991 2094 return err;
ac7f9cfa
JB		 2095
2096 flags = &_flags;
2097 change = true;
92ffe055 2098 }
3b85875a 2099
ac7f9cfa 2100 if (change)
3d54d255 2101 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2102 else
2103 err = 0;
60719ffd 2104
9bc383de
JB		 2105 if (!err && params.use_4addr != -1)
2106 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2107
55682965
JB		 2108 return err;
2109}
2110
2111static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2112{
4c476991 2113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2114 struct vif_params params;
84efbb84 2115 struct wireless_dev *wdev;
1c90f9d4 2116 struct sk_buff *msg;
55682965
JB		 2117 int err;
2118 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2119 u32 flags;
55682965 2120
2ec600d6
LCC		 2121 memset(&params, 0, sizeof(params));
2122
55682965
JB		 2123 if (!info->attrs[NL80211_ATTR_IFNAME])
2124 return -EINVAL;
2125
2126 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2127 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2128 if (type > NL80211_IFTYPE_MAX)
2129 return -EINVAL;
2130 }
2131
79c97e97 2132 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2133 !(rdev->wiphy.interface_modes & (1 << type)))
2134 return -EOPNOTSUPP;
55682965 2135
9bc383de 2136 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2137 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2138 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2139 if (err)
4c476991 2140 return err;
9bc383de 2141 }
8b787643 2142
1c90f9d4
JB		 2143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2144 if (!msg)
2145 return -ENOMEM;
2146
66f7ac50
MW		 2147 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2148 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2149 &flags);
e35e4d28
HG		 2150 wdev = rdev_add_virtual_intf(rdev,
2151 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2152 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2153 if (IS_ERR(wdev)) {
2154 nlmsg_free(msg);
84efbb84 2155 return PTR_ERR(wdev);
1c90f9d4 2156 }
2ec600d6 2157
98104fde
JB		 2158 switch (type) {
2159 case NL80211_IFTYPE_MESH_POINT:
2160 if (!info->attrs[NL80211_ATTR_MESH_ID])
2161 break;
29cbe68c
JB		 2162 wdev_lock(wdev);
2163 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2164 IEEE80211_MAX_MESH_ID_LEN);
2165 wdev->mesh_id_up_len =
2166 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2167 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2168 wdev->mesh_id_up_len);
2169 wdev_unlock(wdev);
98104fde
JB		 2170 break;
2171 case NL80211_IFTYPE_P2P_DEVICE:
2172 /*
2173 * P2P Device doesn't have a netdev, so doesn't go
2174 * through the netdev notifier and must be added here
2175 */
2176 mutex_init(&wdev->mtx);
2177 INIT_LIST_HEAD(&wdev->event_list);
2178 spin_lock_init(&wdev->event_lock);
2179 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2180 spin_lock_init(&wdev->mgmt_registrations_lock);
2181
2182 mutex_lock(&rdev->devlist_mtx);
2183 wdev->identifier = ++rdev->wdev_id;
2184 list_add_rcu(&wdev->list, &rdev->wdev_list);
2185 rdev->devlist_generation++;
2186 mutex_unlock(&rdev->devlist_mtx);
2187 break;
2188 default:
2189 break;
29cbe68c
JB		 2190 }
2191
15e47304 2192 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2193 rdev, wdev) < 0) {
2194 nlmsg_free(msg);
2195 return -ENOBUFS;
2196 }
2197
2198 return genlmsg_reply(msg, info);
55682965
JB		 2199}
2200
2201static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2202{
4c476991 2203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2204 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2205
4c476991
JB		 2206 if (!rdev->ops->del_virtual_intf)
2207 return -EOPNOTSUPP;
55682965 2208
84efbb84
JB		 2209 /*
2210 * If we remove a wireless device without a netdev then clear
2211 * user_ptr[1] so that nl80211_post_doit won't dereference it
2212 * to check if it needs to do dev_put(). Otherwise it crashes
2213 * since the wdev has been freed, unlike with a netdev where
2214 * we need the dev_put() for the netdev to really be freed.
2215 */
2216 if (!wdev->netdev)
2217 info->user_ptr[1] = NULL;
2218
e35e4d28 2219 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2220}
2221
1d9d9213
SW		 2222static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2223{
2224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2225 struct net_device *dev = info->user_ptr[1];
2226 u16 noack_map;
2227
2228 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2229 return -EINVAL;
2230
2231 if (!rdev->ops->set_noack_map)
2232 return -EOPNOTSUPP;
2233
2234 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2235
e35e4d28 2236 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2237}
2238
41ade00f
JB		 2239struct get_key_cookie {
2240 struct sk_buff *msg;
2241 int error;
b9454e83 2242 int idx;
41ade00f
JB		 2243};
2244
2245static void get_key_callback(void *c, struct key_params *params)
2246{
b9454e83 2247 struct nlattr *key;
41ade00f
JB		 2248 struct get_key_cookie *cookie = c;
2249
9360ffd1
DM		 2250 if ((params->key &&
2251 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2252 params->key_len, params->key)) ||
2253 (params->seq &&
2254 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2255 params->seq_len, params->seq)) ||
2256 (params->cipher &&
2257 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2258 params->cipher)))
2259 goto nla_put_failure;
41ade00f 2260
b9454e83
JB		 2261 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2262 if (!key)
2263 goto nla_put_failure;
2264
9360ffd1
DM		 2265 if ((params->key &&
2266 nla_put(cookie->msg, NL80211_KEY_DATA,
2267 params->key_len, params->key)) ||
2268 (params->seq &&
2269 nla_put(cookie->msg, NL80211_KEY_SEQ,
2270 params->seq_len, params->seq)) ||
2271 (params->cipher &&
2272 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2273 params->cipher)))
2274 goto nla_put_failure;
b9454e83 2275
9360ffd1
DM		 2276 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2277 goto nla_put_failure;
b9454e83
JB		 2278
2279 nla_nest_end(cookie->msg, key);
2280
41ade00f
JB		 2281 return;
2282 nla_put_failure:
2283 cookie->error = 1;
2284}
2285
2286static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2287{
4c476991 2288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2289 int err;
4c476991 2290 struct net_device *dev = info->user_ptr[1];
41ade00f 2291 u8 key_idx = 0;
e31b8213
JB		 2292 const u8 *mac_addr = NULL;
2293 bool pairwise;
41ade00f
JB		 2294 struct get_key_cookie cookie = {
2295 .error = 0,
2296 };
2297 void *hdr;
2298 struct sk_buff *msg;
2299
2300 if (info->attrs[NL80211_ATTR_KEY_IDX])
2301 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2302
3cfcf6ac 2303 if (key_idx > 5)
41ade00f
JB		 2304 return -EINVAL;
2305
2306 if (info->attrs[NL80211_ATTR_MAC])
2307 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2308
e31b8213
JB		 2309 pairwise = !!mac_addr;
2310 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2311 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2312 if (kt >= NUM_NL80211_KEYTYPES)
2313 return -EINVAL;
2314 if (kt != NL80211_KEYTYPE_GROUP &&
2315 kt != NL80211_KEYTYPE_PAIRWISE)
2316 return -EINVAL;
2317 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2318 }
2319
4c476991
JB		 2320 if (!rdev->ops->get_key)
2321 return -EOPNOTSUPP;
41ade00f 2322
fd2120ca 2323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2324 if (!msg)
2325 return -ENOMEM;
41ade00f 2326
15e47304 2327 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2328 NL80211_CMD_NEW_KEY);
4c476991
JB		 2329 if (IS_ERR(hdr))
2330 return PTR_ERR(hdr);
41ade00f
JB		 2331
2332 cookie.msg = msg;
b9454e83 2333 cookie.idx = key_idx;
41ade00f 2334
9360ffd1
DM		 2335 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2336 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2337 goto nla_put_failure;
2338 if (mac_addr &&
2339 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2340 goto nla_put_failure;
41ade00f 2341
e31b8213
JB		 2342 if (pairwise && mac_addr &&
2343 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2344 return -ENOENT;
2345
e35e4d28
HG		 2346 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2347 get_key_callback);
41ade00f
JB		 2348
2349 if (err)
6c95e2a2 2350 goto free_msg;
41ade00f
JB		 2351
2352 if (cookie.error)
2353 goto nla_put_failure;
2354
2355 genlmsg_end(msg, hdr);
4c476991 2356 return genlmsg_reply(msg, info);
41ade00f
JB		 2357
2358 nla_put_failure:
2359 err = -ENOBUFS;
6c95e2a2 2360 free_msg:
41ade00f 2361 nlmsg_free(msg);
41ade00f
JB		 2362 return err;
2363}
2364
2365static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2366{
4c476991 2367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2368 struct key_parse key;
41ade00f 2369 int err;
4c476991 2370 struct net_device *dev = info->user_ptr[1];
41ade00f 2371
b9454e83
JB		 2372 err = nl80211_parse_key(info, &key);
2373 if (err)
2374 return err;
41ade00f 2375
b9454e83 2376 if (key.idx < 0)
41ade00f
JB		 2377 return -EINVAL;
2378
b9454e83
JB		 2379 /* only support setting default key */
2380 if (!key.def && !key.defmgmt)
41ade00f
JB		 2381 return -EINVAL;
2382
dbd2fd65 2383 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2384
dbd2fd65
JB		 2385 if (key.def) {
2386 if (!rdev->ops->set_default_key) {
2387 err = -EOPNOTSUPP;
2388 goto out;
2389 }
41ade00f 2390
dbd2fd65
JB		 2391 err = nl80211_key_allowed(dev->ieee80211_ptr);
2392 if (err)
2393 goto out;
2394
e35e4d28 2395 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2396 key.def_uni, key.def_multi);
2397
2398 if (err)
2399 goto out;
fffd0934 2400
3d23e349 2401#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2402 dev->ieee80211_ptr->wext.default_key = key.idx;
2403#endif
2404 } else {
2405 if (key.def_uni || !key.def_multi) {
2406 err = -EINVAL;
2407 goto out;
2408 }
2409
2410 if (!rdev->ops->set_default_mgmt_key) {
2411 err = -EOPNOTSUPP;
2412 goto out;
2413 }
2414
2415 err = nl80211_key_allowed(dev->ieee80211_ptr);
2416 if (err)
2417 goto out;
2418
e35e4d28 2419 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2420 if (err)
2421 goto out;
2422
2423#ifdef CONFIG_CFG80211_WEXT
2424 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2425#endif
dbd2fd65
JB		 2426 }
2427
2428 out:
fffd0934 2429 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2430
41ade00f
JB		 2431 return err;
2432}
2433
2434static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2435{
4c476991 2436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2437 int err;
4c476991 2438 struct net_device *dev = info->user_ptr[1];
b9454e83 2439 struct key_parse key;
e31b8213 2440 const u8 *mac_addr = NULL;
41ade00f 2441
b9454e83
JB		 2442 err = nl80211_parse_key(info, &key);
2443 if (err)
2444 return err;
41ade00f 2445
b9454e83 2446 if (!key.p.key)
41ade00f
JB		 2447 return -EINVAL;
2448
41ade00f
JB		 2449 if (info->attrs[NL80211_ATTR_MAC])
2450 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2451
e31b8213
JB		 2452 if (key.type == -1) {
2453 if (mac_addr)
2454 key.type = NL80211_KEYTYPE_PAIRWISE;
2455 else
2456 key.type = NL80211_KEYTYPE_GROUP;
2457 }
2458
2459 /* for now */
2460 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2461 key.type != NL80211_KEYTYPE_GROUP)
2462 return -EINVAL;
2463
4c476991
JB		 2464 if (!rdev->ops->add_key)
2465 return -EOPNOTSUPP;
25e47c18 2466
e31b8213
JB		 2467 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2468 key.type == NL80211_KEYTYPE_PAIRWISE,
2469 mac_addr))
4c476991 2470 return -EINVAL;
41ade00f 2471
fffd0934
JB		 2472 wdev_lock(dev->ieee80211_ptr);
2473 err = nl80211_key_allowed(dev->ieee80211_ptr);
2474 if (!err)
e35e4d28
HG		 2475 err = rdev_add_key(rdev, dev, key.idx,
2476 key.type == NL80211_KEYTYPE_PAIRWISE,
2477 mac_addr, &key.p);
fffd0934 2478 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2479
41ade00f
JB		 2480 return err;
2481}
2482
2483static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2484{
4c476991 2485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2486 int err;
4c476991 2487 struct net_device *dev = info->user_ptr[1];
41ade00f 2488 u8 *mac_addr = NULL;
b9454e83 2489 struct key_parse key;
41ade00f 2490
b9454e83
JB		 2491 err = nl80211_parse_key(info, &key);
2492 if (err)
2493 return err;
41ade00f
JB		 2494
2495 if (info->attrs[NL80211_ATTR_MAC])
2496 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2497
e31b8213
JB		 2498 if (key.type == -1) {
2499 if (mac_addr)
2500 key.type = NL80211_KEYTYPE_PAIRWISE;
2501 else
2502 key.type = NL80211_KEYTYPE_GROUP;
2503 }
2504
2505 /* for now */
2506 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2507 key.type != NL80211_KEYTYPE_GROUP)
2508 return -EINVAL;
2509
4c476991
JB		 2510 if (!rdev->ops->del_key)
2511 return -EOPNOTSUPP;
41ade00f 2512
fffd0934
JB		 2513 wdev_lock(dev->ieee80211_ptr);
2514 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2515
2516 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2517 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2518 err = -ENOENT;
2519
fffd0934 2520 if (!err)
e35e4d28
HG		 2521 err = rdev_del_key(rdev, dev, key.idx,
2522 key.type == NL80211_KEYTYPE_PAIRWISE,
2523 mac_addr);
41ade00f 2524
3d23e349 2525#ifdef CONFIG_CFG80211_WEXT
08645126 2526 if (!err) {
b9454e83 2527 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2528 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2529 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2530 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2531 }
2532#endif
fffd0934 2533 wdev_unlock(dev->ieee80211_ptr);
08645126 2534
41ade00f
JB		 2535 return err;
2536}
2537
8860020e
JB		 2538static int nl80211_parse_beacon(struct genl_info *info,
2539 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2540{
8860020e 2541 bool haveinfo = false;
ed1b6cc7 2542
9946ecfb
JM		 2543 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2544 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2545 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2546 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2547 return -EINVAL;
2548
8860020e 2549 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2550
ed1b6cc7 2551 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2552 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2553 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2554 if (!bcn->head_len)
2555 return -EINVAL;
2556 haveinfo = true;
ed1b6cc7
JB		 2557 }
2558
2559 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2560 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2561 bcn->tail_len =
ed1b6cc7 2562 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2563 haveinfo = true;
ed1b6cc7
JB		 2564 }
2565
4c476991
JB		 2566 if (!haveinfo)
2567 return -EINVAL;
3b85875a 2568
9946ecfb 2569 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2570 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2571 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2572 }
2573
2574 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2575 bcn->proberesp_ies =
9946ecfb 2576 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2577 bcn->proberesp_ies_len =
9946ecfb
JM		 2578 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2579 }
2580
2581 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2582 bcn->assocresp_ies =
9946ecfb 2583 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2584 bcn->assocresp_ies_len =
9946ecfb
JM		 2585 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2586 }
2587
00f740e1 2588 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2589 bcn->probe_resp =
00f740e1 2590 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2591 bcn->probe_resp_len =
00f740e1
AN		 2592 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2593 }
2594
8860020e
JB		 2595 return 0;
2596}
2597
46c1dd0c
FF		 2598static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2599 struct cfg80211_ap_settings *params)
2600{
2601 struct wireless_dev *wdev;
2602 bool ret = false;
2603
2604 mutex_lock(&rdev->devlist_mtx);
2605
89a54e48 2606 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2607 if (wdev->iftype != NL80211_IFTYPE_AP &&
2608 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2609 continue;
2610
683b6d3b 2611 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2612 continue;
2613
683b6d3b 2614 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2615 ret = true;
2616 break;
2617 }
2618
2619 mutex_unlock(&rdev->devlist_mtx);
2620
2621 return ret;
2622}
2623
e39e5b5e
JM		 2624static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2625 enum nl80211_auth_type auth_type,
2626 enum nl80211_commands cmd)
2627{
2628 if (auth_type > NL80211_AUTHTYPE_MAX)
2629 return false;
2630
2631 switch (cmd) {
2632 case NL80211_CMD_AUTHENTICATE:
2633 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2634 auth_type == NL80211_AUTHTYPE_SAE)
2635 return false;
2636 return true;
2637 case NL80211_CMD_CONNECT:
2638 case NL80211_CMD_START_AP:
2639 /* SAE not supported yet */
2640 if (auth_type == NL80211_AUTHTYPE_SAE)
2641 return false;
2642 return true;
2643 default:
2644 return false;
2645 }
2646}
2647
8860020e
JB		 2648static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2649{
2650 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2651 struct net_device *dev = info->user_ptr[1];
2652 struct wireless_dev *wdev = dev->ieee80211_ptr;
2653 struct cfg80211_ap_settings params;
2654 int err;
2655
2656 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2657 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2658 return -EOPNOTSUPP;
2659
2660 if (!rdev->ops->start_ap)
2661 return -EOPNOTSUPP;
2662
2663 if (wdev->beacon_interval)
2664 return -EALREADY;
2665
2666 memset(&params, 0, sizeof(params));
2667
2668 /* these are required for START_AP */
2669 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2670 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2671 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2672 return -EINVAL;
2673
2674 err = nl80211_parse_beacon(info, &params.beacon);
2675 if (err)
2676 return err;
2677
2678 params.beacon_interval =
2679 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2680 params.dtim_period =
2681 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2682
2683 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2684 if (err)
2685 return err;
2686
2687 /*
2688 * In theory, some of these attributes should be required here
2689 * but since they were not used when the command was originally
2690 * added, keep them optional for old user space programs to let
2691 * them continue to work with drivers that do not need the
2692 * additional information -- drivers must check!
2693 */
2694 if (info->attrs[NL80211_ATTR_SSID]) {
2695 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2696 params.ssid_len =
2697 nla_len(info->attrs[NL80211_ATTR_SSID]);
2698 if (params.ssid_len == 0 ||
2699 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2700 return -EINVAL;
2701 }
2702
2703 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2704 params.hidden_ssid = nla_get_u32(
2705 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2706 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2707 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2708 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2709 return -EINVAL;
2710 }
2711
2712 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2713
2714 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2715 params.auth_type = nla_get_u32(
2716 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 2717 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2718 NL80211_CMD_START_AP))
8860020e
JB		 2719 return -EINVAL;
2720 } else
2721 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2722
2723 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2724 NL80211_MAX_NR_CIPHER_SUITES);
2725 if (err)
2726 return err;
2727
1b658f11
VT		 2728 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2729 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2730 return -EOPNOTSUPP;
2731 params.inactivity_timeout = nla_get_u16(
2732 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2733 }
2734
aa430da4 2735 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 2736 err = nl80211_parse_chandef(rdev, info, &params.chandef);
2737 if (err)
2738 return err;
2739 } else if (wdev->preset_chandef.chan) {
2740 params.chandef = wdev->preset_chandef;
46c1dd0c 2741 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2742 return -EINVAL;
2743
683b6d3b 2744 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 2745 return -EINVAL;
2746
e4e32459 2747 mutex_lock(&rdev->devlist_mtx);
683b6d3b 2748 err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan,
e4e32459
MK		 2749 CHAN_MODE_SHARED);
2750 mutex_unlock(&rdev->devlist_mtx);
2751
2752 if (err)
2753 return err;
2754
e35e4d28 2755 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 2756 if (!err) {
683b6d3b 2757 wdev->preset_chandef = params.chandef;
8860020e 2758 wdev->beacon_interval = params.beacon_interval;
683b6d3b 2759 wdev->channel = params.chandef.chan;
06e191e2
AQ		 2760 wdev->ssid_len = params.ssid_len;
2761 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 2762 }
56d1893d 2763 return err;
ed1b6cc7
JB		 2764}
2765
8860020e
JB		 2766static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2767{
2768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2769 struct net_device *dev = info->user_ptr[1];
2770 struct wireless_dev *wdev = dev->ieee80211_ptr;
2771 struct cfg80211_beacon_data params;
2772 int err;
2773
2774 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2775 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2776 return -EOPNOTSUPP;
2777
2778 if (!rdev->ops->change_beacon)
2779 return -EOPNOTSUPP;
2780
2781 if (!wdev->beacon_interval)
2782 return -EINVAL;
2783
2784 err = nl80211_parse_beacon(info, &params);
2785 if (err)
2786 return err;
2787
e35e4d28 2788 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 2789}
2790
2791static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2792{
4c476991
JB		 2793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2794 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2795
60771780 2796 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2797}
2798
5727ef1b
JB		 2799static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2800 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2801 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2802 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2803 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2804 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2805 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2806};
2807
eccb8e8f 2808static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2809 enum nl80211_iftype iftype,
eccb8e8f 2810 struct station_parameters *params)
5727ef1b
JB		 2811{
2812 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2813 struct nlattr *nla;
5727ef1b
JB		 2814 int flag;
2815
eccb8e8f
JB		 2816 /*
2817 * Try parsing the new attribute first so userspace
2818 * can specify both for older kernels.
2819 */
2820 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2821 if (nla) {
2822 struct nl80211_sta_flag_update *sta_flags;
2823
2824 sta_flags = nla_data(nla);
2825 params->sta_flags_mask = sta_flags->mask;
2826 params->sta_flags_set = sta_flags->set;
2827 if ((params->sta_flags_mask |
2828 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2829 return -EINVAL;
2830 return 0;
2831 }
2832
2833 /* if present, parse the old attribute */
5727ef1b 2834
eccb8e8f 2835 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2836 if (!nla)
2837 return 0;
2838
2839 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2840 nla, sta_flags_policy))
2841 return -EINVAL;
2842
bdd3ae3d
JB		 2843 /*
2844 * Only allow certain flags for interface types so that
2845 * other attributes are silently ignored. Remember that
2846 * this is backward compatibility code with old userspace
2847 * and shouldn't be hit in other cases anyway.
2848 */
2849 switch (iftype) {
2850 case NL80211_IFTYPE_AP:
2851 case NL80211_IFTYPE_AP_VLAN:
2852 case NL80211_IFTYPE_P2P_GO:
2853 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2854 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2855 BIT(NL80211_STA_FLAG_WME) |
2856 BIT(NL80211_STA_FLAG_MFP);
2857 break;
2858 case NL80211_IFTYPE_P2P_CLIENT:
2859 case NL80211_IFTYPE_STATION:
2860 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2861 BIT(NL80211_STA_FLAG_TDLS_PEER);
2862 break;
2863 case NL80211_IFTYPE_MESH_POINT:
2864 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2865 BIT(NL80211_STA_FLAG_MFP) |
2866 BIT(NL80211_STA_FLAG_AUTHORIZED);
2867 default:
2868 return -EINVAL;
2869 }
5727ef1b 2870
3383b5a6
JB		 2871 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2872 if (flags[flag]) {
eccb8e8f 2873 params->sta_flags_set |= (1<<flag);
5727ef1b 2874
3383b5a6
JB		 2875 /* no longer support new API additions in old API */
2876 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2877 return -EINVAL;
2878 }
2879 }
2880
5727ef1b
JB		 2881 return 0;
2882}
2883
c8dcfd8a
FF		 2884static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2885 int attr)
2886{
2887 struct nlattr *rate;
8eb41c8d
VK		 2888 u32 bitrate;
2889 u16 bitrate_compat;
c8dcfd8a
FF		 2890
2891 rate = nla_nest_start(msg, attr);
2892 if (!rate)
db9c64cf 2893 return false;
c8dcfd8a
FF		 2894
2895 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2896 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 2897 /* report 16-bit bitrate only if we can */
2898 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 2899 if (bitrate > 0 &&
2900 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
2901 return false;
2902 if (bitrate_compat > 0 &&
2903 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
2904 return false;
2905
2906 if (info->flags & RATE_INFO_FLAGS_MCS) {
2907 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
2908 return false;
2909 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2910 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2911 return false;
2912 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2913 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2914 return false;
2915 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
2916 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
2917 return false;
2918 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
2919 return false;
2920 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2921 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2922 return false;
2923 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
2924 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
2925 return false;
2926 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
2927 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
2928 return false;
2929 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
2930 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
2931 return false;
2932 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2933 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2934 return false;
2935 }
c8dcfd8a
FF		 2936
2937 nla_nest_end(msg, rate);
2938 return true;
c8dcfd8a
FF		 2939}
2940
15e47304 2941static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 2942 int flags,
2943 struct cfg80211_registered_device *rdev,
2944 struct net_device *dev,
98b62183 2945 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2946{
2947 void *hdr;
f4263c98 2948 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 2949
15e47304 2950 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 2951 if (!hdr)
2952 return -1;
2953
9360ffd1
DM		 2954 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2955 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2956 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2957 goto nla_put_failure;
f5ea9120 2958
2ec600d6
LCC		 2959 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2960 if (!sinfoattr)
fd5b74dc 2961 goto nla_put_failure;
9360ffd1
DM		 2962 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2963 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2964 sinfo->connected_time))
2965 goto nla_put_failure;
2966 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2967 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2968 sinfo->inactive_time))
2969 goto nla_put_failure;
2970 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2971 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2972 sinfo->rx_bytes))
2973 goto nla_put_failure;
2974 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2975 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2976 sinfo->tx_bytes))
2977 goto nla_put_failure;
2978 if ((sinfo->filled & STATION_INFO_LLID) &&
2979 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2980 goto nla_put_failure;
2981 if ((sinfo->filled & STATION_INFO_PLID) &&
2982 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2983 goto nla_put_failure;
2984 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2985 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2986 sinfo->plink_state))
2987 goto nla_put_failure;
66266b3a
JL		 2988 switch (rdev->wiphy.signal_type) {
2989 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2990 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2991 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2992 sinfo->signal))
2993 goto nla_put_failure;
2994 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2995 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2996 sinfo->signal_avg))
2997 goto nla_put_failure;
66266b3a
JL		 2998 break;
2999 default:
3000 break;
3001 }
420e7fab 3002 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3003 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3004 NL80211_STA_INFO_TX_BITRATE))
3005 goto nla_put_failure;
3006 }
3007 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3008 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3009 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3010 goto nla_put_failure;
420e7fab 3011 }
9360ffd1
DM		 3012 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3013 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3014 sinfo->rx_packets))
3015 goto nla_put_failure;
3016 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3017 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3018 sinfo->tx_packets))
3019 goto nla_put_failure;
3020 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3021 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3022 sinfo->tx_retries))
3023 goto nla_put_failure;
3024 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3025 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3026 sinfo->tx_failed))
3027 goto nla_put_failure;
3028 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3029 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3030 sinfo->beacon_loss_count))
3031 goto nla_put_failure;
f4263c98
PS		 3032 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3033 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3034 if (!bss_param)
3035 goto nla_put_failure;
3036
9360ffd1
DM		 3037 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3038 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3039 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3040 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3041 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3042 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3043 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3044 sinfo->bss_param.dtim_period) ||
3045 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3046 sinfo->bss_param.beacon_interval))
3047 goto nla_put_failure;
f4263c98
PS		 3048
3049 nla_nest_end(msg, bss_param);
3050 }
9360ffd1
DM		 3051 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3052 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3053 sizeof(struct nl80211_sta_flag_update),
3054 &sinfo->sta_flags))
3055 goto nla_put_failure;
7eab0f64
JL		 3056 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3057 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3058 sinfo->t_offset))
3059 goto nla_put_failure;
2ec600d6 3060 nla_nest_end(msg, sinfoattr);
fd5b74dc 3061
9360ffd1
DM		 3062 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3063 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3064 sinfo->assoc_req_ies))
3065 goto nla_put_failure;
50d3dfb7 3066
fd5b74dc
JB		 3067 return genlmsg_end(msg, hdr);
3068
3069 nla_put_failure:
bc3ed28c
TG		 3070 genlmsg_cancel(msg, hdr);
3071 return -EMSGSIZE;
fd5b74dc
JB		 3072}
3073
2ec600d6 3074static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3075 struct netlink_callback *cb)
2ec600d6 3076{
2ec600d6
LCC		 3077 struct station_info sinfo;
3078 struct cfg80211_registered_device *dev;
bba95fef 3079 struct net_device *netdev;
2ec600d6 3080 u8 mac_addr[ETH_ALEN];
bba95fef 3081 int sta_idx = cb->args[1];
2ec600d6 3082 int err;
2ec600d6 3083
67748893
JB		 3084 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3085 if (err)
3086 return err;
bba95fef
JB		 3087
3088 if (!dev->ops->dump_station) {
eec60b03 3089 err = -EOPNOTSUPP;
bba95fef
JB		 3090 goto out_err;
3091 }
3092
bba95fef 3093 while (1) {
f612cedf 3094 memset(&sinfo, 0, sizeof(sinfo));
e35e4d28
HG		 3095 err = rdev_dump_station(dev, netdev, sta_idx,
3096 mac_addr, &sinfo);
bba95fef
JB		 3097 if (err == -ENOENT)
3098 break;
3099 if (err)
3b85875a 3100 goto out_err;
bba95fef
JB		 3101
3102 if (nl80211_send_station(skb,
15e47304 3103 NETLINK_CB(cb->skb).portid,
bba95fef 3104 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 3105 dev, netdev, mac_addr,
bba95fef
JB		 3106 &sinfo) < 0)
3107 goto out;
3108
3109 sta_idx++;
3110 }
3111
3112
3113 out:
3114 cb->args[1] = sta_idx;
3115 err = skb->len;
bba95fef 3116 out_err:
67748893 3117 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 3118
3119 return err;
2ec600d6 3120}
fd5b74dc 3121
5727ef1b
JB		 3122static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3123{
4c476991
JB		 3124 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3125 struct net_device *dev = info->user_ptr[1];
2ec600d6 3126 struct station_info sinfo;
fd5b74dc
JB		 3127 struct sk_buff *msg;
3128 u8 *mac_addr = NULL;
4c476991 3129 int err;
fd5b74dc 3130
2ec600d6 3131 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3132
3133 if (!info->attrs[NL80211_ATTR_MAC])
3134 return -EINVAL;
3135
3136 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3137
4c476991
JB		 3138 if (!rdev->ops->get_station)
3139 return -EOPNOTSUPP;
3b85875a 3140
e35e4d28 3141 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3142 if (err)
4c476991 3143 return err;
2ec600d6 3144
fd2120ca 3145 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3146 if (!msg)
4c476991 3147 return -ENOMEM;
fd5b74dc 3148
15e47304 3149 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3150 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3151 nlmsg_free(msg);
3152 return -ENOBUFS;
3153 }
3b85875a 3154
4c476991 3155 return genlmsg_reply(msg, info);
5727ef1b
JB		 3156}
3157
3158/*
c258d2de 3159 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3160 */
80b99899
JB		 3161static struct net_device *get_vlan(struct genl_info *info,
3162 struct cfg80211_registered_device *rdev)
5727ef1b 3163{
463d0183 3164 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3165 struct net_device *v;
3166 int ret;
3167
3168 if (!vlanattr)
3169 return NULL;
3170
3171 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3172 if (!v)
3173 return ERR_PTR(-ENODEV);
3174
3175 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3176 ret = -EINVAL;
3177 goto error;
5727ef1b 3178 }
80b99899
JB		 3179
3180 if (!netif_running(v)) {
3181 ret = -ENETDOWN;
3182 goto error;
3183 }
3184
3185 return v;
3186 error:
3187 dev_put(v);
3188 return ERR_PTR(ret);
5727ef1b
JB		 3189}
3190
3191static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3192{
4c476991 3193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3194 int err;
4c476991 3195 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3196 struct station_parameters params;
3197 u8 *mac_addr = NULL;
3198
3199 memset(&params, 0, sizeof(params));
3200
3201 params.listen_interval = -1;
57cf8043 3202 params.plink_state = -1;
5727ef1b
JB		 3203
3204 if (info->attrs[NL80211_ATTR_STA_AID])
3205 return -EINVAL;
3206
3207 if (!info->attrs[NL80211_ATTR_MAC])
3208 return -EINVAL;
3209
3210 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3211
3212 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3213 params.supported_rates =
3214 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3215 params.supported_rates_len =
3216 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3217 }
3218
3219 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3220 params.listen_interval =
3221 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3222
36aedc90
JM		 3223 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3224 params.ht_capa =
3225 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3226
bdd90d5e
JB		 3227 if (!rdev->ops->change_station)
3228 return -EOPNOTSUPP;
3229
bdd3ae3d 3230 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3231 return -EINVAL;
3232
2ec600d6
LCC		 3233 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3234 params.plink_action =
3235 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3236
9c3990aa
JC		 3237 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3238 params.plink_state =
3239 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3240
a97f4424
JB		 3241 switch (dev->ieee80211_ptr->iftype) {
3242 case NL80211_IFTYPE_AP:
3243 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3244 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3245 /* disallow mesh-specific things */
3246 if (params.plink_action)
bdd90d5e
JB		 3247 return -EINVAL;
3248
3249 /* TDLS can't be set, ... */
3250 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3251 return -EINVAL;
3252 /*
3253 * ... but don't bother the driver with it. This works around
3254 * a hostapd/wpa_supplicant issue -- it always includes the
3255 * TLDS_PEER flag in the mask even for AP mode.
3256 */
3257 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3258
3259 /* accept only the listed bits */
3260 if (params.sta_flags_mask &
3261 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3262 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3263 BIT(NL80211_STA_FLAG_WME) |
3264 BIT(NL80211_STA_FLAG_MFP)))
3265 return -EINVAL;
3266
3267 /* must be last in here for error handling */
3268 params.vlan = get_vlan(info, rdev);
3269 if (IS_ERR(params.vlan))
3270 return PTR_ERR(params.vlan);
a97f4424 3271 break;
074ac8df 3272 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3273 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3274 /*
3275 * Don't allow userspace to change the TDLS_PEER flag,
3276 * but silently ignore attempts to change it since we
3277 * don't have state here to verify that it doesn't try
3278 * to change the flag.
3279 */
3280 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 3281 /* fall through */
3282 case NL80211_IFTYPE_ADHOC:
3283 /* disallow things sta doesn't support */
3284 if (params.plink_action)
3285 return -EINVAL;
3286 if (params.ht_capa)
3287 return -EINVAL;
3288 if (params.listen_interval >= 0)
3289 return -EINVAL;
bdd90d5e
JB		 3290 /* reject any changes other than AUTHORIZED */
3291 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3292 return -EINVAL;
a97f4424
JB		 3293 break;
3294 case NL80211_IFTYPE_MESH_POINT:
3295 /* disallow things mesh doesn't support */
3296 if (params.vlan)
bdd90d5e 3297 return -EINVAL;
a97f4424 3298 if (params.ht_capa)
bdd90d5e 3299 return -EINVAL;
a97f4424 3300 if (params.listen_interval >= 0)
bdd90d5e
JB		 3301 return -EINVAL;
3302 /*
3303 * No special handling for TDLS here -- the userspace
3304 * mesh code doesn't have this bug.
3305 */
b39c48fa
JC		 3306 if (params.sta_flags_mask &
3307 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3308 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3309 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3310 return -EINVAL;
a97f4424
JB		 3311 break;
3312 default:
bdd90d5e 3313 return -EOPNOTSUPP;
034d655e
JB		 3314 }
3315
bdd90d5e 3316 /* be aware of params.vlan when changing code here */
5727ef1b 3317
e35e4d28 3318 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3319
5727ef1b
JB		 3320 if (params.vlan)
3321 dev_put(params.vlan);
3b85875a 3322
5727ef1b
JB		 3323 return err;
3324}
3325
c75786c9
EP		 3326static struct nla_policy
3327nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3328 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3329 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3330};
3331
5727ef1b
JB		 3332static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3333{
4c476991 3334 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3335 int err;
4c476991 3336 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3337 struct station_parameters params;
3338 u8 *mac_addr = NULL;
3339
3340 memset(&params, 0, sizeof(params));
3341
3342 if (!info->attrs[NL80211_ATTR_MAC])
3343 return -EINVAL;
3344
5727ef1b
JB		 3345 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3346 return -EINVAL;
3347
3348 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3349 return -EINVAL;
3350
0e956c13
TLSC		 3351 if (!info->attrs[NL80211_ATTR_STA_AID])
3352 return -EINVAL;
3353
5727ef1b
JB		 3354 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3355 params.supported_rates =
3356 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3357 params.supported_rates_len =
3358 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3359 params.listen_interval =
3360 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3361
0e956c13
TLSC		 3362 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3363 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3364 return -EINVAL;
51b50fbe 3365
36aedc90
JM		 3366 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3367 params.ht_capa =
3368 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3369
f461be3e
MP		 3370 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3371 params.vht_capa =
3372 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3373
96b78dff
JC		 3374 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3375 params.plink_action =
3376 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3377
bdd90d5e
JB		 3378 if (!rdev->ops->add_station)
3379 return -EOPNOTSUPP;
3380
bdd3ae3d 3381 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3382 return -EINVAL;
3383
bdd90d5e
JB		 3384 switch (dev->ieee80211_ptr->iftype) {
3385 case NL80211_IFTYPE_AP:
3386 case NL80211_IFTYPE_AP_VLAN:
3387 case NL80211_IFTYPE_P2P_GO:
3388 /* parse WME attributes if sta is WME capable */
3389 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3390 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3391 info->attrs[NL80211_ATTR_STA_WME]) {
3392 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3393 struct nlattr *nla;
3394
3395 nla = info->attrs[NL80211_ATTR_STA_WME];
3396 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3397 nl80211_sta_wme_policy);
3398 if (err)
3399 return err;
3400
3401 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3402 params.uapsd_queues =
3403 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3404 if (params.uapsd_queues &
3405 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3406 return -EINVAL;
c75786c9 3407
bdd90d5e
JB		 3408 if (tb[NL80211_STA_WME_MAX_SP])
3409 params.max_sp =
3410 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3411
bdd90d5e
JB		 3412 if (params.max_sp &
3413 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3414 return -EINVAL;
4319e193 3415
bdd90d5e
JB		 3416 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3417 }
3418 /* TDLS peers cannot be added */
3419 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3420 return -EINVAL;
bdd90d5e
JB		 3421 /* but don't bother the driver with it */
3422 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3423
bdd90d5e
JB		 3424 /* must be last in here for error handling */
3425 params.vlan = get_vlan(info, rdev);
3426 if (IS_ERR(params.vlan))
3427 return PTR_ERR(params.vlan);
3428 break;
3429 case NL80211_IFTYPE_MESH_POINT:
3430 /* TDLS peers cannot be added */
3431 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3432 return -EINVAL;
3433 break;
3434 case NL80211_IFTYPE_STATION:
3435 /* Only TDLS peers can be added */
3436 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3437 return -EINVAL;
3438 /* Can only add if TDLS ... */
3439 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3440 return -EOPNOTSUPP;
3441 /* ... with external setup is supported */
3442 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3443 return -EOPNOTSUPP;
3444 break;
3445 default:
3446 return -EOPNOTSUPP;
c75786c9
EP		 3447 }
3448
bdd90d5e 3449 /* be aware of params.vlan when changing code here */
5727ef1b 3450
e35e4d28 3451 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 3452
5727ef1b
JB		 3453 if (params.vlan)
3454 dev_put(params.vlan);
5727ef1b
JB		 3455 return err;
3456}
3457
3458static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3459{
4c476991
JB		 3460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3461 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3462 u8 *mac_addr = NULL;
3463
3464 if (info->attrs[NL80211_ATTR_MAC])
3465 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3466
e80cf853 3467 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3468 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3469 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3470 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3471 return -EINVAL;
5727ef1b 3472
4c476991
JB		 3473 if (!rdev->ops->del_station)
3474 return -EOPNOTSUPP;
3b85875a 3475
e35e4d28 3476 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 3477}
3478
15e47304 3479static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3480 int flags, struct net_device *dev,
3481 u8 *dst, u8 *next_hop,
3482 struct mpath_info *pinfo)
3483{
3484 void *hdr;
3485 struct nlattr *pinfoattr;
3486
15e47304 3487 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3488 if (!hdr)
3489 return -1;
3490
9360ffd1
DM		 3491 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3492 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3493 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3494 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3495 goto nla_put_failure;
f5ea9120 3496
2ec600d6
LCC		 3497 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3498 if (!pinfoattr)
3499 goto nla_put_failure;
9360ffd1
DM		 3500 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3501 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3502 pinfo->frame_qlen))
3503 goto nla_put_failure;
3504 if (((pinfo->filled & MPATH_INFO_SN) &&
3505 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3506 ((pinfo->filled & MPATH_INFO_METRIC) &&
3507 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3508 pinfo->metric)) ||
3509 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3510 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3511 pinfo->exptime)) ||
3512 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3513 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3514 pinfo->flags)) ||
3515 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3516 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3517 pinfo->discovery_timeout)) ||
3518 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3519 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3520 pinfo->discovery_retries)))
3521 goto nla_put_failure;
2ec600d6
LCC		 3522
3523 nla_nest_end(msg, pinfoattr);
3524
3525 return genlmsg_end(msg, hdr);
3526
3527 nla_put_failure:
bc3ed28c
TG		 3528 genlmsg_cancel(msg, hdr);
3529 return -EMSGSIZE;
2ec600d6
LCC		 3530}
3531
3532static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3533 struct netlink_callback *cb)
2ec600d6 3534{
2ec600d6
LCC		 3535 struct mpath_info pinfo;
3536 struct cfg80211_registered_device *dev;
bba95fef 3537 struct net_device *netdev;
2ec600d6
LCC		 3538 u8 dst[ETH_ALEN];
3539 u8 next_hop[ETH_ALEN];
bba95fef 3540 int path_idx = cb->args[1];
2ec600d6 3541 int err;
2ec600d6 3542
67748893
JB		 3543 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3544 if (err)
3545 return err;
bba95fef
JB		 3546
3547 if (!dev->ops->dump_mpath) {
eec60b03 3548 err = -EOPNOTSUPP;
bba95fef
JB		 3549 goto out_err;
3550 }
3551
eec60b03
JM		 3552 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3553 err = -EOPNOTSUPP;
0448b5fc 3554 goto out_err;
eec60b03
JM		 3555 }
3556
bba95fef 3557 while (1) {
e35e4d28
HG		 3558 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3559 &pinfo);
bba95fef 3560 if (err == -ENOENT)
2ec600d6 3561 break;
bba95fef 3562 if (err)
3b85875a 3563 goto out_err;
2ec600d6 3564
15e47304 3565 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3566 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3567 netdev, dst, next_hop,
3568 &pinfo) < 0)
3569 goto out;
2ec600d6 3570
bba95fef 3571 path_idx++;
2ec600d6 3572 }
2ec600d6 3573
2ec600d6 3574
bba95fef
JB		 3575 out:
3576 cb->args[1] = path_idx;
3577 err = skb->len;
bba95fef 3578 out_err:
67748893 3579 nl80211_finish_netdev_dump(dev);
bba95fef 3580 return err;
2ec600d6
LCC		 3581}
3582
3583static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3584{
4c476991 3585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3586 int err;
4c476991 3587 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3588 struct mpath_info pinfo;
3589 struct sk_buff *msg;
3590 u8 *dst = NULL;
3591 u8 next_hop[ETH_ALEN];
3592
3593 memset(&pinfo, 0, sizeof(pinfo));
3594
3595 if (!info->attrs[NL80211_ATTR_MAC])
3596 return -EINVAL;
3597
3598 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3599
4c476991
JB		 3600 if (!rdev->ops->get_mpath)
3601 return -EOPNOTSUPP;
2ec600d6 3602
4c476991
JB		 3603 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3604 return -EOPNOTSUPP;
eec60b03 3605
e35e4d28 3606 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 3607 if (err)
4c476991 3608 return err;
2ec600d6 3609
fd2120ca 3610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3611 if (!msg)
4c476991 3612 return -ENOMEM;
2ec600d6 3613
15e47304 3614 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3615 dev, dst, next_hop, &pinfo) < 0) {
3616 nlmsg_free(msg);
3617 return -ENOBUFS;
3618 }
3b85875a 3619
4c476991 3620 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3621}
3622
3623static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3624{
4c476991
JB		 3625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3626 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3627 u8 *dst = NULL;
3628 u8 *next_hop = NULL;
3629
3630 if (!info->attrs[NL80211_ATTR_MAC])
3631 return -EINVAL;
3632
3633 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3634 return -EINVAL;
3635
3636 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3637 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3638
4c476991
JB		 3639 if (!rdev->ops->change_mpath)
3640 return -EOPNOTSUPP;
35a8efe1 3641
4c476991
JB		 3642 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3643 return -EOPNOTSUPP;
2ec600d6 3644
e35e4d28 3645 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 3646}
4c476991 3647
2ec600d6
LCC		 3648static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3649{
4c476991
JB		 3650 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3651 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3652 u8 *dst = NULL;
3653 u8 *next_hop = NULL;
3654
3655 if (!info->attrs[NL80211_ATTR_MAC])
3656 return -EINVAL;
3657
3658 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3659 return -EINVAL;
3660
3661 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3662 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3663
4c476991
JB		 3664 if (!rdev->ops->add_mpath)
3665 return -EOPNOTSUPP;
35a8efe1 3666
4c476991
JB		 3667 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3668 return -EOPNOTSUPP;
2ec600d6 3669
e35e4d28 3670 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 3671}
3672
3673static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3674{
4c476991
JB		 3675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3676 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3677 u8 *dst = NULL;
3678
3679 if (info->attrs[NL80211_ATTR_MAC])
3680 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3681
4c476991
JB		 3682 if (!rdev->ops->del_mpath)
3683 return -EOPNOTSUPP;
3b85875a 3684
e35e4d28 3685 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 3686}
3687
9f1ba906
JM		 3688static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3689{
4c476991
JB		 3690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3691 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3692 struct bss_parameters params;
3693
3694 memset(&params, 0, sizeof(params));
3695 /* default to not changing parameters */
3696 params.use_cts_prot = -1;
3697 params.use_short_preamble = -1;
3698 params.use_short_slot_time = -1;
fd8aaaf3 3699 params.ap_isolate = -1;
50b12f59 3700 params.ht_opmode = -1;
9f1ba906
JM		 3701
3702 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3703 params.use_cts_prot =
3704 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3705 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3706 params.use_short_preamble =
3707 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3708 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3709 params.use_short_slot_time =
3710 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3711 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3712 params.basic_rates =
3713 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3714 params.basic_rates_len =
3715 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3716 }
fd8aaaf3
FF		 3717 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3718 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3719 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3720 params.ht_opmode =
3721 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3722
4c476991
JB		 3723 if (!rdev->ops->change_bss)
3724 return -EOPNOTSUPP;
9f1ba906 3725
074ac8df 3726 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3727 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3728 return -EOPNOTSUPP;
3b85875a 3729
e35e4d28 3730 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 3731}
3732
b54452b0 3733static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3734 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3735 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3736 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3737 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3738 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3739 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3740};
3741
3742static int parse_reg_rule(struct nlattr *tb[],
3743 struct ieee80211_reg_rule *reg_rule)
3744{
3745 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3746 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3747
3748 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3749 return -EINVAL;
3750 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3751 return -EINVAL;
3752 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3753 return -EINVAL;
3754 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3755 return -EINVAL;
3756 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3757 return -EINVAL;
3758
3759 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3760
3761 freq_range->start_freq_khz =
3762 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3763 freq_range->end_freq_khz =
3764 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3765 freq_range->max_bandwidth_khz =
3766 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3767
3768 power_rule->max_eirp =
3769 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3770
3771 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3772 power_rule->max_antenna_gain =
3773 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3774
3775 return 0;
3776}
3777
3778static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3779{
3780 int r;
3781 char *data = NULL;
57b5ce07 3782 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 3783
80778f18
LR		 3784 /*
3785 * You should only get this when cfg80211 hasn't yet initialized
3786 * completely when built-in to the kernel right between the time
3787 * window between nl80211_init() and regulatory_init(), if that is
3788 * even possible.
3789 */
3790 mutex_lock(&cfg80211_mutex);
3791 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3792 mutex_unlock(&cfg80211_mutex);
3793 return -EINPROGRESS;
80778f18 3794 }
fe33eb39 3795 mutex_unlock(&cfg80211_mutex);
80778f18 3796
fe33eb39
LR		 3797 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3798 return -EINVAL;
b2e1b302
LR		 3799
3800 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3801
57b5ce07
LR		 3802 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3803 user_reg_hint_type =
3804 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3805 else
3806 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3807
3808 switch (user_reg_hint_type) {
3809 case NL80211_USER_REG_HINT_USER:
3810 case NL80211_USER_REG_HINT_CELL_BASE:
3811 break;
3812 default:
3813 return -EINVAL;
3814 }
3815
3816 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 3817
b2e1b302
LR		 3818 return r;
3819}
3820
24bdd9f4 3821static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3822 struct genl_info *info)
93da9cc1 3823{
4c476991 3824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3825 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3826 struct wireless_dev *wdev = dev->ieee80211_ptr;
3827 struct mesh_config cur_params;
3828 int err = 0;
93da9cc1 3829 void *hdr;
3830 struct nlattr *pinfoattr;
3831 struct sk_buff *msg;
3832
29cbe68c
JB		 3833 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3834 return -EOPNOTSUPP;
3835
24bdd9f4 3836 if (!rdev->ops->get_mesh_config)
4c476991 3837 return -EOPNOTSUPP;
f3f92586 3838
29cbe68c
JB		 3839 wdev_lock(wdev);
3840 /* If not connected, get default parameters */
3841 if (!wdev->mesh_id_len)
3842 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3843 else
e35e4d28 3844 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 3845 wdev_unlock(wdev);
3846
93da9cc1 3847 if (err)
4c476991 3848 return err;
93da9cc1 3849
3850 /* Draw up a netlink message to send back */
fd2120ca 3851 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3852 if (!msg)
3853 return -ENOMEM;
15e47304 3854 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 3855 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3856 if (!hdr)
efe1cf0c 3857 goto out;
24bdd9f4 3858 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3859 if (!pinfoattr)
3860 goto nla_put_failure;
9360ffd1
DM		 3861 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3862 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3863 cur_params.dot11MeshRetryTimeout) ||
3864 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3865 cur_params.dot11MeshConfirmTimeout) ||
3866 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3867 cur_params.dot11MeshHoldingTimeout) ||
3868 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3869 cur_params.dot11MeshMaxPeerLinks) ||
3870 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3871 cur_params.dot11MeshMaxRetries) ||
3872 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3873 cur_params.dot11MeshTTL) ||
3874 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3875 cur_params.element_ttl) ||
3876 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3877 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3878 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3879 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3880 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3881 cur_params.dot11MeshHWMPmaxPREQretries) ||
3882 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3883 cur_params.path_refresh_time) ||
3884 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3885 cur_params.min_discovery_timeout) ||
3886 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3887 cur_params.dot11MeshHWMPactivePathTimeout) ||
3888 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3889 cur_params.dot11MeshHWMPpreqMinInterval) ||
3890 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3891 cur_params.dot11MeshHWMPperrMinInterval) ||
3892 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3893 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3894 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3895 cur_params.dot11MeshHWMPRootMode) ||
3896 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3897 cur_params.dot11MeshHWMPRannInterval) ||
3898 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3899 cur_params.dot11MeshGateAnnouncementProtocol) ||
3900 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3901 cur_params.dot11MeshForwarding) ||
3902 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3903 cur_params.rssi_threshold) ||
3904 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3905 cur_params.ht_opmode) ||
3906 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3907 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3908 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3909 cur_params.dot11MeshHWMProotInterval) ||
3910 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3911 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3912 goto nla_put_failure;
93da9cc1 3913 nla_nest_end(msg, pinfoattr);
3914 genlmsg_end(msg, hdr);
4c476991 3915 return genlmsg_reply(msg, info);
93da9cc1 3916
3b85875a 3917 nla_put_failure:
93da9cc1 3918 genlmsg_cancel(msg, hdr);
efe1cf0c 3919 out:
d080e275 3920 nlmsg_free(msg);
4c476991 3921 return -ENOBUFS;
93da9cc1 3922}
3923
b54452b0 3924static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3925 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3926 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3927 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3928 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3929 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3930 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3931 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3932 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3933 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3934 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3935 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3936 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3937 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3938 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3939 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3940 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3941 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3942 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3943 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3944 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3945 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3946 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3947 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3948 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3949 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3950};
3951
c80d545d
JC		 3952static const struct nla_policy
3953 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3954 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3955 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3956 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3957 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3958 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3959 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3960 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3961};
3962
24bdd9f4 3963static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3964 struct mesh_config *cfg,
3965 u32 *mask_out)
93da9cc1 3966{
93da9cc1 3967 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3968 u32 mask = 0;
93da9cc1 3969
bd90fdcc
JB		 3970#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3971do {\
3972 if (table[attr_num]) {\
3973 cfg->param = nla_fn(table[attr_num]); \
3974 mask |= (1 << (attr_num - 1)); \
3975 } \
3976} while (0);\
3977
3978
24bdd9f4 3979 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3980 return -EINVAL;
3981 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3982 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3983 nl80211_meshconf_params_policy))
93da9cc1 3984 return -EINVAL;
3985
93da9cc1 3986 /* This makes sure that there aren't more than 32 mesh config
3987 * parameters (otherwise our bitfield scheme would not work.) */
3988 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3989
3990 /* Fill in the params struct */
93da9cc1 3991 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
a4f606ea
CYY		 3992 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3993 nla_get_u16);
93da9cc1 3994 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
a4f606ea
CYY		 3995 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3996 nla_get_u16);
93da9cc1 3997 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
a4f606ea
CYY		 3998 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3999 nla_get_u16);
93da9cc1 4000 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
a4f606ea
CYY		 4001 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4002 nla_get_u16);
93da9cc1 4003 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
a4f606ea
CYY		 4004 mask, NL80211_MESHCONF_MAX_RETRIES,
4005 nla_get_u8);
93da9cc1 4006 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
a4f606ea 4007 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21 4008 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
a4f606ea
CYY		 4009 mask, NL80211_MESHCONF_ELEMENT_TTL,
4010 nla_get_u8);
93da9cc1 4011 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
a4f606ea
CYY		 4012 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4013 nla_get_u8);
4014 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
4015 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4016 nla_get_u32);
93da9cc1 4017 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
a4f606ea
CYY		 4018 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4019 nla_get_u8);
93da9cc1 4020 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
a4f606ea
CYY		 4021 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4022 nla_get_u32);
93da9cc1 4023 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
a4f606ea
CYY		 4024 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4025 nla_get_u16);
4026 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
4027 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4028 nla_get_u32);
93da9cc1 4029 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
a4f606ea
CYY		 4030 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4031 nla_get_u16);
dca7e943 4032 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
a4f606ea
CYY		 4033 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4034 nla_get_u16);
93da9cc1 4035 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 4036 dot11MeshHWMPnetDiameterTraversalTime, mask,
4037 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4038 nla_get_u16);
4039 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
4040 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
4041 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
4042 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4043 nla_get_u16);
63c5723b 4044 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 4045 dot11MeshGateAnnouncementProtocol, mask,
4046 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4047 nla_get_u8);
94f90656 4048 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
a4f606ea
CYY		 4049 mask, NL80211_MESHCONF_FORWARDING,
4050 nla_get_u8);
55335137 4051 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
a4f606ea
CYY		 4052 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4053 nla_get_u32);
70c33eaa 4054 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
a4f606ea 4055 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4056 nla_get_u16);
4057 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4058 mask,
4059 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4060 nla_get_u32);
4061 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
4062 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4063 nla_get_u16);
4064 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4065 dot11MeshHWMPconfirmationInterval, mask,
4066 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4067 nla_get_u16);
bd90fdcc
JB		 4068 if (mask_out)
4069 *mask_out = mask;
c80d545d 4070
bd90fdcc
JB		 4071 return 0;
4072
4073#undef FILL_IN_MESH_PARAM_IF_SET
4074}
4075
c80d545d
JC		 4076static int nl80211_parse_mesh_setup(struct genl_info *info,
4077 struct mesh_setup *setup)
4078{
4079 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4080
4081 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4082 return -EINVAL;
4083 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4084 info->attrs[NL80211_ATTR_MESH_SETUP],
4085 nl80211_mesh_setup_params_policy))
4086 return -EINVAL;
4087
d299a1f2
JC		 4088 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4089 setup->sync_method =
4090 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4091 IEEE80211_SYNC_METHOD_VENDOR :
4092 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4093
c80d545d
JC		 4094 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4095 setup->path_sel_proto =
4096 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4097 IEEE80211_PATH_PROTOCOL_VENDOR :
4098 IEEE80211_PATH_PROTOCOL_HWMP;
4099
4100 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4101 setup->path_metric =
4102 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4103 IEEE80211_PATH_METRIC_VENDOR :
4104 IEEE80211_PATH_METRIC_AIRTIME;
4105
581a8b0f
JC		 4106
4107 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4108 struct nlattr *ieattr =
581a8b0f 4109 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4110 if (!is_valid_ie_attr(ieattr))
4111 return -EINVAL;
581a8b0f
JC		 4112 setup->ie = nla_data(ieattr);
4113 setup->ie_len = nla_len(ieattr);
c80d545d 4114 }
b130e5ce
JC		 4115 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4116 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4117
4118 return 0;
4119}
4120
24bdd9f4 4121static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4122 struct genl_info *info)
bd90fdcc
JB		 4123{
4124 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4125 struct net_device *dev = info->user_ptr[1];
29cbe68c 4126 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4127 struct mesh_config cfg;
4128 u32 mask;
4129 int err;
4130
29cbe68c
JB		 4131 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4132 return -EOPNOTSUPP;
4133
24bdd9f4 4134 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4135 return -EOPNOTSUPP;
4136
24bdd9f4 4137 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4138 if (err)
4139 return err;
4140
29cbe68c
JB		 4141 wdev_lock(wdev);
4142 if (!wdev->mesh_id_len)
4143 err = -ENOLINK;
4144
4145 if (!err)
e35e4d28 4146 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4147
4148 wdev_unlock(wdev);
4149
4150 return err;
93da9cc1 4151}
4152
f130347c
LR		 4153static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4154{
4155 struct sk_buff *msg;
4156 void *hdr = NULL;
4157 struct nlattr *nl_reg_rules;
4158 unsigned int i;
4159 int err = -EINVAL;
4160
a1794390 4161 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4162
4163 if (!cfg80211_regdomain)
4164 goto out;
4165
fd2120ca 4166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4167 if (!msg) {
4168 err = -ENOBUFS;
4169 goto out;
4170 }
4171
15e47304 4172 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4173 NL80211_CMD_GET_REG);
4174 if (!hdr)
efe1cf0c 4175 goto put_failure;
f130347c 4176
9360ffd1
DM		 4177 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
4178 cfg80211_regdomain->alpha2) ||
4179 (cfg80211_regdomain->dfs_region &&
4180 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
4181 cfg80211_regdomain->dfs_region)))
4182 goto nla_put_failure;
f130347c 4183
57b5ce07
LR		 4184 if (reg_last_request_cell_base() &&
4185 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4186 NL80211_USER_REG_HINT_CELL_BASE))
4187 goto nla_put_failure;
4188
f130347c
LR		 4189 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4190 if (!nl_reg_rules)
4191 goto nla_put_failure;
4192
4193 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
4194 struct nlattr *nl_reg_rule;
4195 const struct ieee80211_reg_rule *reg_rule;
4196 const struct ieee80211_freq_range *freq_range;
4197 const struct ieee80211_power_rule *power_rule;
4198
4199 reg_rule = &cfg80211_regdomain->reg_rules[i];
4200 freq_range = &reg_rule->freq_range;
4201 power_rule = &reg_rule->power_rule;
4202
4203 nl_reg_rule = nla_nest_start(msg, i);
4204 if (!nl_reg_rule)
4205 goto nla_put_failure;
4206
9360ffd1
DM		 4207 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4208 reg_rule->flags) ||
4209 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4210 freq_range->start_freq_khz) ||
4211 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4212 freq_range->end_freq_khz) ||
4213 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4214 freq_range->max_bandwidth_khz) ||
4215 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4216 power_rule->max_antenna_gain) ||
4217 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4218 power_rule->max_eirp))
4219 goto nla_put_failure;
f130347c
LR		 4220
4221 nla_nest_end(msg, nl_reg_rule);
4222 }
4223
4224 nla_nest_end(msg, nl_reg_rules);
4225
4226 genlmsg_end(msg, hdr);
134e6375 4227 err = genlmsg_reply(msg, info);
f130347c
LR		 4228 goto out;
4229
4230nla_put_failure:
4231 genlmsg_cancel(msg, hdr);
efe1cf0c 4232put_failure:
d080e275 4233 nlmsg_free(msg);
f130347c
LR		 4234 err = -EMSGSIZE;
4235out:
a1794390 4236 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4237 return err;
4238}
4239
b2e1b302
LR		 4240static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4241{
4242 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4243 struct nlattr *nl_reg_rule;
4244 char *alpha2 = NULL;
4245 int rem_reg_rules = 0, r = 0;
4246 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4247 u8 dfs_region = 0;
b2e1b302
LR		 4248 struct ieee80211_regdomain *rd = NULL;
4249
4250 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4251 return -EINVAL;
4252
4253 if (!info->attrs[NL80211_ATTR_REG_RULES])
4254 return -EINVAL;
4255
4256 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4257
8b60b078
LR		 4258 if (info->attrs[NL80211_ATTR_DFS_REGION])
4259 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4260
b2e1b302
LR		 4261 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4262 rem_reg_rules) {
4263 num_rules++;
4264 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4265 return -EINVAL;
b2e1b302
LR		 4266 }
4267
61405e97
LR		 4268 mutex_lock(&cfg80211_mutex);
4269
d0e18f83
LR		 4270 if (!reg_is_valid_request(alpha2)) {
4271 r = -EINVAL;
4272 goto bad_reg;
4273 }
b2e1b302
LR		 4274
4275 size_of_regd = sizeof(struct ieee80211_regdomain) +
4276 (num_rules * sizeof(struct ieee80211_reg_rule));
4277
4278 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 4279 if (!rd) {
4280 r = -ENOMEM;
4281 goto bad_reg;
4282 }
b2e1b302
LR		 4283
4284 rd->n_reg_rules = num_rules;
4285 rd->alpha2[0] = alpha2[0];
4286 rd->alpha2[1] = alpha2[1];
4287
8b60b078
LR		 4288 /*
4289 * Disable DFS master mode if the DFS region was
4290 * not supported or known on this kernel.
4291 */
4292 if (reg_supported_dfs_region(dfs_region))
4293 rd->dfs_region = dfs_region;
4294
b2e1b302
LR		 4295 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4296 rem_reg_rules) {
4297 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4298 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4299 reg_rule_policy);
4300 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4301 if (r)
4302 goto bad_reg;
4303
4304 rule_idx++;
4305
d0e18f83
LR		 4306 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4307 r = -EINVAL;
b2e1b302 4308 goto bad_reg;
d0e18f83 4309 }
b2e1b302
LR		 4310 }
4311
4312 BUG_ON(rule_idx != num_rules);
4313
b2e1b302 4314 r = set_regdom(rd);
61405e97 4315
a1794390 4316 mutex_unlock(&cfg80211_mutex);
d0e18f83 4317
b2e1b302
LR		 4318 return r;
4319
d2372b31 4320 bad_reg:
61405e97 4321 mutex_unlock(&cfg80211_mutex);
b2e1b302 4322 kfree(rd);
d0e18f83 4323 return r;
b2e1b302
LR		 4324}
4325
83f5e2cf
JB		 4326static int validate_scan_freqs(struct nlattr *freqs)
4327{
4328 struct nlattr *attr1, *attr2;
4329 int n_channels = 0, tmp1, tmp2;
4330
4331 nla_for_each_nested(attr1, freqs, tmp1) {
4332 n_channels++;
4333 /*
4334 * Some hardware has a limited channel list for
4335 * scanning, and it is pretty much nonsensical
4336 * to scan for a channel twice, so disallow that
4337 * and don't require drivers to check that the
4338 * channel list they get isn't longer than what
4339 * they can scan, as long as they can scan all
4340 * the channels they registered at once.
4341 */
4342 nla_for_each_nested(attr2, freqs, tmp2)
4343 if (attr1 != attr2 &&
4344 nla_get_u32(attr1) == nla_get_u32(attr2))
4345 return 0;
4346 }
4347
4348 return n_channels;
4349}
4350
2a519311
JB		 4351static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4352{
4c476991 4353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4354 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4355 struct cfg80211_scan_request *request;
2a519311
JB		 4356 struct nlattr *attr;
4357 struct wiphy *wiphy;
83f5e2cf 4358 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4359 size_t ie_len;
2a519311 4360
f4a11bb0
JB		 4361 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4362 return -EINVAL;
4363
79c97e97 4364 wiphy = &rdev->wiphy;
2a519311 4365
4c476991
JB		 4366 if (!rdev->ops->scan)
4367 return -EOPNOTSUPP;
2a519311 4368
4c476991
JB		 4369 if (rdev->scan_req)
4370 return -EBUSY;
2a519311
JB		 4371
4372 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4373 n_channels = validate_scan_freqs(
4374 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4375 if (!n_channels)
4376 return -EINVAL;
2a519311 4377 } else {
34850ab2 4378 enum ieee80211_band band;
83f5e2cf
JB		 4379 n_channels = 0;
4380
2a519311
JB		 4381 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4382 if (wiphy->bands[band])
4383 n_channels += wiphy->bands[band]->n_channels;
4384 }
4385
4386 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4387 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4388 n_ssids++;
4389
4c476991
JB		 4390 if (n_ssids > wiphy->max_scan_ssids)
4391 return -EINVAL;
2a519311 4392
70692ad2
JM		 4393 if (info->attrs[NL80211_ATTR_IE])
4394 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4395 else
4396 ie_len = 0;
4397
4c476991
JB		 4398 if (ie_len > wiphy->max_scan_ie_len)
4399 return -EINVAL;
18a83659 4400
2a519311 4401 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4402 + sizeof(*request->ssids) * n_ssids
4403 + sizeof(*request->channels) * n_channels
70692ad2 4404 + ie_len, GFP_KERNEL);
4c476991
JB		 4405 if (!request)
4406 return -ENOMEM;
2a519311 4407
2a519311 4408 if (n_ssids)
5ba63533 4409 request->ssids = (void *)&request->channels[n_channels];
2a519311 4410 request->n_ssids = n_ssids;
70692ad2
JM		 4411 if (ie_len) {
4412 if (request->ssids)
4413 request->ie = (void *)(request->ssids + n_ssids);
4414 else
4415 request->ie = (void *)(request->channels + n_channels);
4416 }
2a519311 4417
584991dc 4418 i = 0;
2a519311
JB		 4419 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4420 /* user specified, bail out if channel not found */
2a519311 4421 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4422 struct ieee80211_channel *chan;
4423
4424 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4425
4426 if (!chan) {
2a519311
JB		 4427 err = -EINVAL;
4428 goto out_free;
4429 }
584991dc
JB		 4430
4431 /* ignore disabled channels */
4432 if (chan->flags & IEEE80211_CHAN_DISABLED)
4433 continue;
4434
4435 request->channels[i] = chan;
2a519311
JB		 4436 i++;
4437 }
4438 } else {
34850ab2
JB		 4439 enum ieee80211_band band;
4440
2a519311 4441 /* all channels */
2a519311
JB		 4442 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4443 int j;
4444 if (!wiphy->bands[band])
4445 continue;
4446 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4447 struct ieee80211_channel *chan;
4448
4449 chan = &wiphy->bands[band]->channels[j];
4450
4451 if (chan->flags & IEEE80211_CHAN_DISABLED)
4452 continue;
4453
4454 request->channels[i] = chan;
2a519311
JB		 4455 i++;
4456 }
4457 }
4458 }
4459
584991dc
JB		 4460 if (!i) {
4461 err = -EINVAL;
4462 goto out_free;
4463 }
4464
4465 request->n_channels = i;
4466
2a519311
JB		 4467 i = 0;
4468 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4469 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4470 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4471 err = -EINVAL;
4472 goto out_free;
4473 }
57a27e1d 4474 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4475 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4476 i++;
4477 }
4478 }
4479
70692ad2
JM		 4480 if (info->attrs[NL80211_ATTR_IE]) {
4481 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4482 memcpy((void *)request->ie,
4483 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4484 request->ie_len);
4485 }
4486
34850ab2 4487 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4488 if (wiphy->bands[i])
4489 request->rates[i] =
4490 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4491
4492 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4493 nla_for_each_nested(attr,
4494 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4495 tmp) {
4496 enum ieee80211_band band = nla_type(attr);
4497
84404623 4498 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4499 err = -EINVAL;
4500 goto out_free;
4501 }
4502 err = ieee80211_get_ratemask(wiphy->bands[band],
4503 nla_data(attr),
4504 nla_len(attr),
4505 &request->rates[band]);
4506 if (err)
4507 goto out_free;
4508 }
4509 }
4510
46856bbf 4511 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4512 request->flags = nla_get_u32(
4513 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4514 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4515 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4516 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4517 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4518 err = -EOPNOTSUPP;
4519 goto out_free;
4520 }
4521 }
ed473771 4522
e9f935e3
RM		 4523 request->no_cck =
4524 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4525
fd014284 4526 request->wdev = wdev;
79c97e97 4527 request->wiphy = &rdev->wiphy;
15d6030b 4528 request->scan_start = jiffies;
2a519311 4529
79c97e97 4530 rdev->scan_req = request;
e35e4d28 4531 err = rdev_scan(rdev, request);
2a519311 4532
463d0183 4533 if (!err) {
fd014284
JB		 4534 nl80211_send_scan_start(rdev, wdev);
4535 if (wdev->netdev)
4536 dev_hold(wdev->netdev);
4c476991 4537 } else {
2a519311 4538 out_free:
79c97e97 4539 rdev->scan_req = NULL;
2a519311
JB		 4540 kfree(request);
4541 }
3b85875a 4542
2a519311
JB		 4543 return err;
4544}
4545
807f8a8c
LC		 4546static int nl80211_start_sched_scan(struct sk_buff *skb,
4547 struct genl_info *info)
4548{
4549 struct cfg80211_sched_scan_request *request;
4550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4551 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4552 struct nlattr *attr;
4553 struct wiphy *wiphy;
a1f1c21c 4554 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4555 u32 interval;
807f8a8c
LC		 4556 enum ieee80211_band band;
4557 size_t ie_len;
a1f1c21c 4558 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4559
4560 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4561 !rdev->ops->sched_scan_start)
4562 return -EOPNOTSUPP;
4563
4564 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4565 return -EINVAL;
4566
bbe6ad6d
LC		 4567 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4568 return -EINVAL;
4569
4570 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4571 if (interval == 0)
4572 return -EINVAL;
4573
807f8a8c
LC		 4574 wiphy = &rdev->wiphy;
4575
4576 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4577 n_channels = validate_scan_freqs(
4578 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4579 if (!n_channels)
4580 return -EINVAL;
4581 } else {
4582 n_channels = 0;
4583
4584 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4585 if (wiphy->bands[band])
4586 n_channels += wiphy->bands[band]->n_channels;
4587 }
4588
4589 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4590 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4591 tmp)
4592 n_ssids++;
4593
93b6aa69 4594 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4595 return -EINVAL;
4596
a1f1c21c
LC		 4597 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4598 nla_for_each_nested(attr,
4599 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4600 tmp)
4601 n_match_sets++;
4602
4603 if (n_match_sets > wiphy->max_match_sets)
4604 return -EINVAL;
4605
807f8a8c
LC		 4606 if (info->attrs[NL80211_ATTR_IE])
4607 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4608 else
4609 ie_len = 0;
4610
5a865bad 4611 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4612 return -EINVAL;
4613
c10841ca
LC		 4614 mutex_lock(&rdev->sched_scan_mtx);
4615
4616 if (rdev->sched_scan_req) {
4617 err = -EINPROGRESS;
4618 goto out;
4619 }
4620
807f8a8c 4621 request = kzalloc(sizeof(*request)
a2cd43c5 4622 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4623 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4624 + sizeof(*request->channels) * n_channels
807f8a8c 4625 + ie_len, GFP_KERNEL);
c10841ca
LC		 4626 if (!request) {
4627 err = -ENOMEM;
4628 goto out;
4629 }
807f8a8c
LC		 4630
4631 if (n_ssids)
4632 request->ssids = (void *)&request->channels[n_channels];
4633 request->n_ssids = n_ssids;
4634 if (ie_len) {
4635 if (request->ssids)
4636 request->ie = (void *)(request->ssids + n_ssids);
4637 else
4638 request->ie = (void *)(request->channels + n_channels);
4639 }
4640
a1f1c21c
LC		 4641 if (n_match_sets) {
4642 if (request->ie)
4643 request->match_sets = (void *)(request->ie + ie_len);
4644 else if (request->ssids)
4645 request->match_sets =
4646 (void *)(request->ssids + n_ssids);
4647 else
4648 request->match_sets =
4649 (void *)(request->channels + n_channels);
4650 }
4651 request->n_match_sets = n_match_sets;
4652
807f8a8c
LC		 4653 i = 0;
4654 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4655 /* user specified, bail out if channel not found */
4656 nla_for_each_nested(attr,
4657 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4658 tmp) {
4659 struct ieee80211_channel *chan;
4660
4661 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4662
4663 if (!chan) {
4664 err = -EINVAL;
4665 goto out_free;
4666 }
4667
4668 /* ignore disabled channels */
4669 if (chan->flags & IEEE80211_CHAN_DISABLED)
4670 continue;
4671
4672 request->channels[i] = chan;
4673 i++;
4674 }
4675 } else {
4676 /* all channels */
4677 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4678 int j;
4679 if (!wiphy->bands[band])
4680 continue;
4681 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4682 struct ieee80211_channel *chan;
4683
4684 chan = &wiphy->bands[band]->channels[j];
4685
4686 if (chan->flags & IEEE80211_CHAN_DISABLED)
4687 continue;
4688
4689 request->channels[i] = chan;
4690 i++;
4691 }
4692 }
4693 }
4694
4695 if (!i) {
4696 err = -EINVAL;
4697 goto out_free;
4698 }
4699
4700 request->n_channels = i;
4701
4702 i = 0;
4703 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4704 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4705 tmp) {
57a27e1d 4706 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4707 err = -EINVAL;
4708 goto out_free;
4709 }
57a27e1d 4710 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4711 memcpy(request->ssids[i].ssid, nla_data(attr),
4712 nla_len(attr));
807f8a8c
LC		 4713 i++;
4714 }
4715 }
4716
a1f1c21c
LC		 4717 i = 0;
4718 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4719 nla_for_each_nested(attr,
4720 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4721 tmp) {
88e920b4 4722 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4723
4724 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4725 nla_data(attr), nla_len(attr),
4726 nl80211_match_policy);
4a4ab0d7 4727 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4728 if (ssid) {
4729 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4730 err = -EINVAL;
4731 goto out_free;
4732 }
4733 memcpy(request->match_sets[i].ssid.ssid,
4734 nla_data(ssid), nla_len(ssid));
4735 request->match_sets[i].ssid.ssid_len =
4736 nla_len(ssid);
4737 }
88e920b4
TP		 4738 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4739 if (rssi)
4740 request->rssi_thold = nla_get_u32(rssi);
4741 else
4742 request->rssi_thold =
4743 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4744 i++;
4745 }
4746 }
4747
807f8a8c
LC		 4748 if (info->attrs[NL80211_ATTR_IE]) {
4749 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4750 memcpy((void *)request->ie,
4751 nla_data(info->attrs[NL80211_ATTR_IE]),
4752 request->ie_len);
4753 }
4754
46856bbf 4755 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4756 request->flags = nla_get_u32(
4757 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4758 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4759 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4760 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4761 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4762 err = -EOPNOTSUPP;
4763 goto out_free;
4764 }
4765 }
ed473771 4766
807f8a8c
LC		 4767 request->dev = dev;
4768 request->wiphy = &rdev->wiphy;
bbe6ad6d 4769 request->interval = interval;
15d6030b 4770 request->scan_start = jiffies;
807f8a8c 4771
e35e4d28 4772 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 4773 if (!err) {
4774 rdev->sched_scan_req = request;
4775 nl80211_send_sched_scan(rdev, dev,
4776 NL80211_CMD_START_SCHED_SCAN);
4777 goto out;
4778 }
4779
4780out_free:
4781 kfree(request);
4782out:
c10841ca 4783 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4784 return err;
4785}
4786
4787static int nl80211_stop_sched_scan(struct sk_buff *skb,
4788 struct genl_info *info)
4789{
4790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4791 int err;
807f8a8c
LC		 4792
4793 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4794 !rdev->ops->sched_scan_stop)
4795 return -EOPNOTSUPP;
4796
c10841ca
LC		 4797 mutex_lock(&rdev->sched_scan_mtx);
4798 err = __cfg80211_stop_sched_scan(rdev, false);
4799 mutex_unlock(&rdev->sched_scan_mtx);
4800
4801 return err;
807f8a8c
LC		 4802}
4803
9720bb3a
JB		 4804static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4805 u32 seq, int flags,
2a519311 4806 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4807 struct wireless_dev *wdev,
4808 struct cfg80211_internal_bss *intbss)
2a519311 4809{
48ab905d 4810 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4811 void *hdr;
4812 struct nlattr *bss;
48ab905d
JB		 4813
4814 ASSERT_WDEV_LOCK(wdev);
2a519311 4815
15e47304 4816 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 4817 NL80211_CMD_NEW_SCAN_RESULTS);
4818 if (!hdr)
4819 return -1;
4820
9720bb3a
JB		 4821 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4822
9360ffd1
DM		 4823 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4824 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4825 goto nla_put_failure;
2a519311
JB		 4826
4827 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4828 if (!bss)
4829 goto nla_put_failure;
9360ffd1
DM		 4830 if ((!is_zero_ether_addr(res->bssid) &&
4831 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4832 (res->information_elements && res->len_information_elements &&
4833 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4834 res->len_information_elements,
4835 res->information_elements)) ||
4836 (res->beacon_ies && res->len_beacon_ies &&
4837 res->beacon_ies != res->information_elements &&
4838 nla_put(msg, NL80211_BSS_BEACON_IES,
4839 res->len_beacon_ies, res->beacon_ies)))
4840 goto nla_put_failure;
4841 if (res->tsf &&
4842 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4843 goto nla_put_failure;
4844 if (res->beacon_interval &&
4845 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4846 goto nla_put_failure;
4847 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4848 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4849 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4850 jiffies_to_msecs(jiffies - intbss->ts)))
4851 goto nla_put_failure;
2a519311 4852
77965c97 4853 switch (rdev->wiphy.signal_type) {
2a519311 4854 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4855 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4856 goto nla_put_failure;
2a519311
JB		 4857 break;
4858 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4859 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4860 goto nla_put_failure;
2a519311
JB		 4861 break;
4862 default:
4863 break;
4864 }
4865
48ab905d 4866 switch (wdev->iftype) {
074ac8df 4867 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4868 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4869 if (intbss == wdev->current_bss &&
4870 nla_put_u32(msg, NL80211_BSS_STATUS,
4871 NL80211_BSS_STATUS_ASSOCIATED))
4872 goto nla_put_failure;
48ab905d
JB		 4873 break;
4874 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4875 if (intbss == wdev->current_bss &&
4876 nla_put_u32(msg, NL80211_BSS_STATUS,
4877 NL80211_BSS_STATUS_IBSS_JOINED))
4878 goto nla_put_failure;
48ab905d
JB		 4879 break;
4880 default:
4881 break;
4882 }
4883
2a519311
JB		 4884 nla_nest_end(msg, bss);
4885
4886 return genlmsg_end(msg, hdr);
4887
4888 nla_put_failure:
4889 genlmsg_cancel(msg, hdr);
4890 return -EMSGSIZE;
4891}
4892
4893static int nl80211_dump_scan(struct sk_buff *skb,
4894 struct netlink_callback *cb)
4895{
48ab905d
JB		 4896 struct cfg80211_registered_device *rdev;
4897 struct net_device *dev;
2a519311 4898 struct cfg80211_internal_bss *scan;
48ab905d 4899 struct wireless_dev *wdev;
2a519311
JB		 4900 int start = cb->args[1], idx = 0;
4901 int err;
4902
67748893
JB		 4903 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4904 if (err)
4905 return err;
2a519311 4906
48ab905d 4907 wdev = dev->ieee80211_ptr;
2a519311 4908
48ab905d
JB		 4909 wdev_lock(wdev);
4910 spin_lock_bh(&rdev->bss_lock);
4911 cfg80211_bss_expire(rdev);
4912
9720bb3a
JB		 4913 cb->seq = rdev->bss_generation;
4914
48ab905d 4915 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4916 if (++idx <= start)
4917 continue;
9720bb3a 4918 if (nl80211_send_bss(skb, cb,
2a519311 4919 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4920 rdev, wdev, scan) < 0) {
2a519311 4921 idx--;
67748893 4922 break;
2a519311
JB		 4923 }
4924 }
4925
48ab905d
JB		 4926 spin_unlock_bh(&rdev->bss_lock);
4927 wdev_unlock(wdev);
2a519311
JB		 4928
4929 cb->args[1] = idx;
67748893 4930 nl80211_finish_netdev_dump(rdev);
2a519311 4931
67748893 4932 return skb->len;
2a519311
JB		 4933}
4934
15e47304 4935static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 4936 int flags, struct net_device *dev,
4937 struct survey_info *survey)
4938{
4939 void *hdr;
4940 struct nlattr *infoattr;
4941
15e47304 4942 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 4943 NL80211_CMD_NEW_SURVEY_RESULTS);
4944 if (!hdr)
4945 return -ENOMEM;
4946
9360ffd1
DM		 4947 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4948 goto nla_put_failure;
61fa713c
HS		 4949
4950 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4951 if (!infoattr)
4952 goto nla_put_failure;
4953
9360ffd1
DM		 4954 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4955 survey->channel->center_freq))
4956 goto nla_put_failure;
4957
4958 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4959 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4960 goto nla_put_failure;
4961 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4962 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4963 goto nla_put_failure;
4964 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4965 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4966 survey->channel_time))
4967 goto nla_put_failure;
4968 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4969 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4970 survey->channel_time_busy))
4971 goto nla_put_failure;
4972 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4973 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4974 survey->channel_time_ext_busy))
4975 goto nla_put_failure;
4976 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4977 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4978 survey->channel_time_rx))
4979 goto nla_put_failure;
4980 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4981 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4982 survey->channel_time_tx))
4983 goto nla_put_failure;
61fa713c
HS		 4984
4985 nla_nest_end(msg, infoattr);
4986
4987 return genlmsg_end(msg, hdr);
4988
4989 nla_put_failure:
4990 genlmsg_cancel(msg, hdr);
4991 return -EMSGSIZE;
4992}
4993
4994static int nl80211_dump_survey(struct sk_buff *skb,
4995 struct netlink_callback *cb)
4996{
4997 struct survey_info survey;
4998 struct cfg80211_registered_device *dev;
4999 struct net_device *netdev;
61fa713c
HS		 5000 int survey_idx = cb->args[1];
5001 int res;
5002
67748893
JB		 5003 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5004 if (res)
5005 return res;
61fa713c
HS		 5006
5007 if (!dev->ops->dump_survey) {
5008 res = -EOPNOTSUPP;
5009 goto out_err;
5010 }
5011
5012 while (1) {
180cdc79
LR		 5013 struct ieee80211_channel *chan;
5014
e35e4d28 5015 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5016 if (res == -ENOENT)
5017 break;
5018 if (res)
5019 goto out_err;
5020
180cdc79
LR		 5021 /* Survey without a channel doesn't make sense */
5022 if (!survey.channel) {
5023 res = -EINVAL;
5024 goto out;
5025 }
5026
5027 chan = ieee80211_get_channel(&dev->wiphy,
5028 survey.channel->center_freq);
5029 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5030 survey_idx++;
5031 continue;
5032 }
5033
61fa713c 5034 if (nl80211_send_survey(skb,
15e47304 5035 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5036 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5037 netdev,
5038 &survey) < 0)
5039 goto out;
5040 survey_idx++;
5041 }
5042
5043 out:
5044 cb->args[1] = survey_idx;
5045 res = skb->len;
5046 out_err:
67748893 5047 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5048 return res;
5049}
5050
b23aa676
SO		 5051static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5052{
5053 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5054 NL80211_WPA_VERSION_2));
5055}
5056
636a5d36
JM		 5057static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5058{
4c476991
JB		 5059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5060 struct net_device *dev = info->user_ptr[1];
19957bb3 5061 struct ieee80211_channel *chan;
e39e5b5e
JM		 5062 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5063 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5064 enum nl80211_auth_type auth_type;
fffd0934 5065 struct key_parse key;
d5cdfacb 5066 bool local_state_change;
636a5d36 5067
f4a11bb0
JB		 5068 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5069 return -EINVAL;
5070
5071 if (!info->attrs[NL80211_ATTR_MAC])
5072 return -EINVAL;
5073
1778092e
JM		 5074 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5075 return -EINVAL;
5076
19957bb3
JB		 5077 if (!info->attrs[NL80211_ATTR_SSID])
5078 return -EINVAL;
5079
5080 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5081 return -EINVAL;
5082
fffd0934
JB		 5083 err = nl80211_parse_key(info, &key);
5084 if (err)
5085 return err;
5086
5087 if (key.idx >= 0) {
e31b8213
JB		 5088 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5089 return -EINVAL;
fffd0934
JB		 5090 if (!key.p.key || !key.p.key_len)
5091 return -EINVAL;
5092 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5093 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5094 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5095 key.p.key_len != WLAN_KEY_LEN_WEP104))
5096 return -EINVAL;
5097 if (key.idx > 4)
5098 return -EINVAL;
5099 } else {
5100 key.p.key_len = 0;
5101 key.p.key = NULL;
5102 }
5103
afea0b7a
JB		 5104 if (key.idx >= 0) {
5105 int i;
5106 bool ok = false;
5107 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5108 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5109 ok = true;
5110 break;
5111 }
5112 }
4c476991
JB		 5113 if (!ok)
5114 return -EINVAL;
afea0b7a
JB		 5115 }
5116
4c476991
JB		 5117 if (!rdev->ops->auth)
5118 return -EOPNOTSUPP;
636a5d36 5119
074ac8df 5120 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5121 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5122 return -EOPNOTSUPP;
eec60b03 5123
19957bb3 5124 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5125 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5126 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5127 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5128 return -EINVAL;
636a5d36 5129
19957bb3
JB		 5130 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5131 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5132
5133 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5134 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5135 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5136 }
5137
19957bb3 5138 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5139 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5140 return -EINVAL;
636a5d36 5141
e39e5b5e
JM		 5142 if (auth_type == NL80211_AUTHTYPE_SAE &&
5143 !info->attrs[NL80211_ATTR_SAE_DATA])
5144 return -EINVAL;
5145
5146 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5147 if (auth_type != NL80211_AUTHTYPE_SAE)
5148 return -EINVAL;
5149 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5150 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5151 /* need to include at least Auth Transaction and Status Code */
5152 if (sae_data_len < 4)
5153 return -EINVAL;
5154 }
5155
d5cdfacb
JM		 5156 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5157
95de817b
JB		 5158 /*
5159 * Since we no longer track auth state, ignore
5160 * requests to only change local state.
5161 */
5162 if (local_state_change)
5163 return 0;
5164
4c476991
JB		 5165 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5166 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5167 key.p.key, key.p.key_len, key.idx,
5168 sae_data, sae_data_len);
636a5d36
JM		 5169}
5170
c0692b8f
JB		 5171static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5172 struct genl_info *info,
3dc27d25
JB		 5173 struct cfg80211_crypto_settings *settings,
5174 int cipher_limit)
b23aa676 5175{
c0b2bbd8
JB		 5176 memset(settings, 0, sizeof(*settings));
5177
b23aa676
SO		 5178 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5179
c0692b8f
JB		 5180 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5181 u16 proto;
5182 proto = nla_get_u16(
5183 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5184 settings->control_port_ethertype = cpu_to_be16(proto);
5185 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5186 proto != ETH_P_PAE)
5187 return -EINVAL;
5188 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5189 settings->control_port_no_encrypt = true;
5190 } else
5191 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5192
b23aa676
SO		 5193 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5194 void *data;
5195 int len, i;
5196
5197 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5198 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5199 settings->n_ciphers_pairwise = len / sizeof(u32);
5200
5201 if (len % sizeof(u32))
5202 return -EINVAL;
5203
3dc27d25 5204 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5205 return -EINVAL;
5206
5207 memcpy(settings->ciphers_pairwise, data, len);
5208
5209 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5210 if (!cfg80211_supported_cipher_suite(
5211 &rdev->wiphy,
b23aa676
SO		 5212 settings->ciphers_pairwise[i]))
5213 return -EINVAL;
5214 }
5215
5216 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5217 settings->cipher_group =
5218 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5219 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5220 settings->cipher_group))
b23aa676
SO		 5221 return -EINVAL;
5222 }
5223
5224 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5225 settings->wpa_versions =
5226 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5227 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5228 return -EINVAL;
5229 }
5230
5231 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5232 void *data;
6d30240e 5233 int len;
b23aa676
SO		 5234
5235 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5236 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5237 settings->n_akm_suites = len / sizeof(u32);
5238
5239 if (len % sizeof(u32))
5240 return -EINVAL;
5241
1b9ca027
JM		 5242 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5243 return -EINVAL;
5244
b23aa676 5245 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5246 }
5247
5248 return 0;
5249}
5250
636a5d36
JM		 5251static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5252{
4c476991
JB		 5253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5254 struct net_device *dev = info->user_ptr[1];
19957bb3 5255 struct cfg80211_crypto_settings crypto;
f444de05 5256 struct ieee80211_channel *chan;
3e5d7649 5257 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5258 int err, ssid_len, ie_len = 0;
5259 bool use_mfp = false;
7e7c8926
BG		 5260 u32 flags = 0;
5261 struct ieee80211_ht_cap *ht_capa = NULL;
5262 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5263
f4a11bb0
JB		 5264 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5265 return -EINVAL;
5266
5267 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5268 !info->attrs[NL80211_ATTR_SSID] ||
5269 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5270 return -EINVAL;
5271
4c476991
JB		 5272 if (!rdev->ops->assoc)
5273 return -EOPNOTSUPP;
636a5d36 5274
074ac8df 5275 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5276 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5277 return -EOPNOTSUPP;
eec60b03 5278
19957bb3 5279 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5280
19957bb3
JB		 5281 chan = ieee80211_get_channel(&rdev->wiphy,
5282 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5283 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5284 return -EINVAL;
636a5d36 5285
19957bb3
JB		 5286 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5287 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5288
5289 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5290 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5291 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5292 }
5293
dc6382ce 5294 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5295 enum nl80211_mfp mfp =
dc6382ce 5296 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5297 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5298 use_mfp = true;
4c476991
JB		 5299 else if (mfp != NL80211_MFP_NO)
5300 return -EINVAL;
dc6382ce
JM		 5301 }
5302
3e5d7649
JB		 5303 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5304 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5305
7e7c8926
BG		 5306 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5307 flags |= ASSOC_REQ_DISABLE_HT;
5308
5309 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5310 ht_capa_mask =
5311 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5312
5313 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5314 if (!ht_capa_mask)
5315 return -EINVAL;
5316 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5317 }
5318
c0692b8f 5319 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5320 if (!err)
3e5d7649
JB		 5321 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5322 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5323 &crypto, flags, ht_capa,
5324 ht_capa_mask);
636a5d36 5325
636a5d36
JM		 5326 return err;
5327}
5328
5329static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5330{
4c476991
JB		 5331 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5332 struct net_device *dev = info->user_ptr[1];
19957bb3 5333 const u8 *ie = NULL, *bssid;
4c476991 5334 int ie_len = 0;
19957bb3 5335 u16 reason_code;
d5cdfacb 5336 bool local_state_change;
636a5d36 5337
f4a11bb0
JB		 5338 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5339 return -EINVAL;
5340
5341 if (!info->attrs[NL80211_ATTR_MAC])
5342 return -EINVAL;
5343
5344 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5345 return -EINVAL;
5346
4c476991
JB		 5347 if (!rdev->ops->deauth)
5348 return -EOPNOTSUPP;
636a5d36 5349
074ac8df 5350 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5351 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5352 return -EOPNOTSUPP;
eec60b03 5353
19957bb3 5354 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5355
19957bb3
JB		 5356 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5357 if (reason_code == 0) {
f4a11bb0 5358 /* Reason Code 0 is reserved */
4c476991 5359 return -EINVAL;
255e737e 5360 }
636a5d36
JM		 5361
5362 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5363 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5364 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5365 }
5366
d5cdfacb
JM		 5367 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5368
4c476991
JB		 5369 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5370 local_state_change);
636a5d36
JM		 5371}
5372
5373static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5374{
4c476991
JB		 5375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5376 struct net_device *dev = info->user_ptr[1];
19957bb3 5377 const u8 *ie = NULL, *bssid;
4c476991 5378 int ie_len = 0;
19957bb3 5379 u16 reason_code;
d5cdfacb 5380 bool local_state_change;
636a5d36 5381
f4a11bb0
JB		 5382 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5383 return -EINVAL;
5384
5385 if (!info->attrs[NL80211_ATTR_MAC])
5386 return -EINVAL;
5387
5388 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5389 return -EINVAL;
5390
4c476991
JB		 5391 if (!rdev->ops->disassoc)
5392 return -EOPNOTSUPP;
636a5d36 5393
074ac8df 5394 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5395 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5396 return -EOPNOTSUPP;
eec60b03 5397
19957bb3 5398 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5399
19957bb3
JB		 5400 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5401 if (reason_code == 0) {
f4a11bb0 5402 /* Reason Code 0 is reserved */
4c476991 5403 return -EINVAL;
255e737e 5404 }
636a5d36
JM		 5405
5406 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5407 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5408 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5409 }
5410
d5cdfacb
JM		 5411 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5412
4c476991
JB		 5413 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5414 local_state_change);
636a5d36
JM		 5415}
5416
dd5b4cc7
FF		 5417static bool
5418nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5419 int mcast_rate[IEEE80211_NUM_BANDS],
5420 int rateval)
5421{
5422 struct wiphy *wiphy = &rdev->wiphy;
5423 bool found = false;
5424 int band, i;
5425
5426 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5427 struct ieee80211_supported_band *sband;
5428
5429 sband = wiphy->bands[band];
5430 if (!sband)
5431 continue;
5432
5433 for (i = 0; i < sband->n_bitrates; i++) {
5434 if (sband->bitrates[i].bitrate == rateval) {
5435 mcast_rate[band] = i + 1;
5436 found = true;
5437 break;
5438 }
5439 }
5440 }
5441
5442 return found;
5443}
5444
04a773ad
JB		 5445static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5446{
4c476991
JB		 5447 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5448 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5449 struct cfg80211_ibss_params ibss;
5450 struct wiphy *wiphy;
fffd0934 5451 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5452 int err;
5453
8e30bc55
JB		 5454 memset(&ibss, 0, sizeof(ibss));
5455
04a773ad
JB		 5456 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5457 return -EINVAL;
5458
683b6d3b 5459 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 5460 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5461 return -EINVAL;
5462
8e30bc55
JB		 5463 ibss.beacon_interval = 100;
5464
5465 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5466 ibss.beacon_interval =
5467 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5468 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5469 return -EINVAL;
5470 }
5471
4c476991
JB		 5472 if (!rdev->ops->join_ibss)
5473 return -EOPNOTSUPP;
04a773ad 5474
4c476991
JB		 5475 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5476 return -EOPNOTSUPP;
04a773ad 5477
79c97e97 5478 wiphy = &rdev->wiphy;
04a773ad 5479
39193498 5480 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5481 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5482
5483 if (!is_valid_ether_addr(ibss.bssid))
5484 return -EINVAL;
5485 }
04a773ad
JB		 5486 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5487 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5488
5489 if (info->attrs[NL80211_ATTR_IE]) {
5490 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5491 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5492 }
5493
683b6d3b
JB		 5494 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5495 if (err)
5496 return err;
04a773ad 5497
683b6d3b 5498 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 5499 return -EINVAL;
5500
db9c64cf
JB		 5501 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5502 return -EINVAL;
5503 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5504 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
5505
04a773ad 5506 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5507 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5508
fbd2c8dc
TP		 5509 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5510 u8 *rates =
5511 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5512 int n_rates =
5513 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5514 struct ieee80211_supported_band *sband =
683b6d3b 5515 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 5516
34850ab2
JB		 5517 err = ieee80211_get_ratemask(sband, rates, n_rates,
5518 &ibss.basic_rates);
5519 if (err)
5520 return err;
fbd2c8dc 5521 }
dd5b4cc7
FF		 5522
5523 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5524 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5525 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5526 return -EINVAL;
fbd2c8dc 5527
4c476991 5528 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 5529 bool no_ht = false;
5530
4c476991 5531 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 5532 info->attrs[NL80211_ATTR_KEYS],
5533 &no_ht);
4c476991
JB		 5534 if (IS_ERR(connkeys))
5535 return PTR_ERR(connkeys);
de7044ee 5536
3d9d1d66
JB		 5537 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5538 no_ht) {
de7044ee
SM		 5539 kfree(connkeys);
5540 return -EINVAL;
5541 }
4c476991 5542 }
04a773ad 5543
267335d6
AQ		 5544 ibss.control_port =
5545 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5546
4c476991 5547 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5548 if (err)
5549 kfree(connkeys);
04a773ad
JB		 5550 return err;
5551}
5552
5553static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5554{
4c476991
JB		 5555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5556 struct net_device *dev = info->user_ptr[1];
04a773ad 5557
4c476991
JB		 5558 if (!rdev->ops->leave_ibss)
5559 return -EOPNOTSUPP;
04a773ad 5560
4c476991
JB		 5561 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5562 return -EOPNOTSUPP;
04a773ad 5563
4c476991 5564 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5565}
5566
f4e583c8
AQ		 5567static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5568{
5569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5570 struct net_device *dev = info->user_ptr[1];
5571 int mcast_rate[IEEE80211_NUM_BANDS];
5572 u32 nla_rate;
5573 int err;
5574
5575 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5576 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5577 return -EOPNOTSUPP;
5578
5579 if (!rdev->ops->set_mcast_rate)
5580 return -EOPNOTSUPP;
5581
5582 memset(mcast_rate, 0, sizeof(mcast_rate));
5583
5584 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5585 return -EINVAL;
5586
5587 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5588 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5589 return -EINVAL;
5590
5591 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5592
5593 return err;
5594}
5595
5596
aff89a9b
JB		 5597#ifdef CONFIG_NL80211_TESTMODE
5598static struct genl_multicast_group nl80211_testmode_mcgrp = {
5599 .name = "testmode",
5600};
5601
5602static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5603{
4c476991 5604 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5605 int err;
5606
5607 if (!info->attrs[NL80211_ATTR_TESTDATA])
5608 return -EINVAL;
5609
aff89a9b
JB		 5610 err = -EOPNOTSUPP;
5611 if (rdev->ops->testmode_cmd) {
5612 rdev->testmode_info = info;
e35e4d28 5613 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 5614 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5615 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5616 rdev->testmode_info = NULL;
5617 }
5618
aff89a9b
JB		 5619 return err;
5620}
5621
71063f0e
WYG		 5622static int nl80211_testmode_dump(struct sk_buff *skb,
5623 struct netlink_callback *cb)
5624{
00918d33 5625 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5626 int err;
5627 long phy_idx;
5628 void *data = NULL;
5629 int data_len = 0;
5630
5631 if (cb->args[0]) {
5632 /*
5633 * 0 is a valid index, but not valid for args[0],
5634 * so we need to offset by 1.
5635 */
5636 phy_idx = cb->args[0] - 1;
5637 } else {
5638 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5639 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5640 nl80211_policy);
5641 if (err)
5642 return err;
00918d33 5643
2bd7e35d
JB		 5644 mutex_lock(&cfg80211_mutex);
5645 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5646 nl80211_fam.attrbuf);
5647 if (IS_ERR(rdev)) {
5648 mutex_unlock(&cfg80211_mutex);
5649 return PTR_ERR(rdev);
00918d33 5650 }
2bd7e35d
JB		 5651 phy_idx = rdev->wiphy_idx;
5652 rdev = NULL;
5653 mutex_unlock(&cfg80211_mutex);
5654
71063f0e
WYG		 5655 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5656 cb->args[1] =
5657 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5658 }
5659
5660 if (cb->args[1]) {
5661 data = nla_data((void *)cb->args[1]);
5662 data_len = nla_len((void *)cb->args[1]);
5663 }
5664
5665 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5666 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5667 if (!rdev) {
71063f0e
WYG		 5668 mutex_unlock(&cfg80211_mutex);
5669 return -ENOENT;
5670 }
00918d33 5671 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5672 mutex_unlock(&cfg80211_mutex);
5673
00918d33 5674 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5675 err = -EOPNOTSUPP;
5676 goto out_err;
5677 }
5678
5679 while (1) {
15e47304 5680 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 5681 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5682 NL80211_CMD_TESTMODE);
5683 struct nlattr *tmdata;
5684
9360ffd1 5685 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5686 genlmsg_cancel(skb, hdr);
5687 break;
5688 }
5689
5690 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5691 if (!tmdata) {
5692 genlmsg_cancel(skb, hdr);
5693 break;
5694 }
e35e4d28 5695 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 5696 nla_nest_end(skb, tmdata);
5697
5698 if (err == -ENOBUFS || err == -ENOENT) {
5699 genlmsg_cancel(skb, hdr);
5700 break;
5701 } else if (err) {
5702 genlmsg_cancel(skb, hdr);
5703 goto out_err;
5704 }
5705
5706 genlmsg_end(skb, hdr);
5707 }
5708
5709 err = skb->len;
5710 /* see above */
5711 cb->args[0] = phy_idx + 1;
5712 out_err:
00918d33 5713 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5714 return err;
5715}
5716
aff89a9b
JB		 5717static struct sk_buff *
5718__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 5719 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 5720{
5721 struct sk_buff *skb;
5722 void *hdr;
5723 struct nlattr *data;
5724
5725 skb = nlmsg_new(approxlen + 100, gfp);
5726 if (!skb)
5727 return NULL;
5728
15e47304 5729 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 5730 if (!hdr) {
5731 kfree_skb(skb);
5732 return NULL;
5733 }
5734
9360ffd1
DM		 5735 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5736 goto nla_put_failure;
aff89a9b
JB		 5737 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5738
5739 ((void **)skb->cb)[0] = rdev;
5740 ((void **)skb->cb)[1] = hdr;
5741 ((void **)skb->cb)[2] = data;
5742
5743 return skb;
5744
5745 nla_put_failure:
5746 kfree_skb(skb);
5747 return NULL;
5748}
5749
5750struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5751 int approxlen)
5752{
5753 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5754
5755 if (WARN_ON(!rdev->testmode_info))
5756 return NULL;
5757
5758 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 5759 rdev->testmode_info->snd_portid,
aff89a9b
JB		 5760 rdev->testmode_info->snd_seq,
5761 GFP_KERNEL);
5762}
5763EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5764
5765int cfg80211_testmode_reply(struct sk_buff *skb)
5766{
5767 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5768 void *hdr = ((void **)skb->cb)[1];
5769 struct nlattr *data = ((void **)skb->cb)[2];
5770
5771 if (WARN_ON(!rdev->testmode_info)) {
5772 kfree_skb(skb);
5773 return -EINVAL;
5774 }
5775
5776 nla_nest_end(skb, data);
5777 genlmsg_end(skb, hdr);
5778 return genlmsg_reply(skb, rdev->testmode_info);
5779}
5780EXPORT_SYMBOL(cfg80211_testmode_reply);
5781
5782struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5783 int approxlen, gfp_t gfp)
5784{
5785 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5786
5787 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5788}
5789EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5790
5791void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5792{
5793 void *hdr = ((void **)skb->cb)[1];
5794 struct nlattr *data = ((void **)skb->cb)[2];
5795
5796 nla_nest_end(skb, data);
5797 genlmsg_end(skb, hdr);
5798 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5799}
5800EXPORT_SYMBOL(cfg80211_testmode_event);
5801#endif
5802
b23aa676
SO		 5803static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5804{
4c476991
JB		 5805 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5806 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5807 struct cfg80211_connect_params connect;
5808 struct wiphy *wiphy;
fffd0934 5809 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5810 int err;
5811
5812 memset(&connect, 0, sizeof(connect));
5813
5814 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5815 return -EINVAL;
5816
5817 if (!info->attrs[NL80211_ATTR_SSID] ||
5818 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5819 return -EINVAL;
5820
5821 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5822 connect.auth_type =
5823 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 5824 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5825 NL80211_CMD_CONNECT))
b23aa676
SO		 5826 return -EINVAL;
5827 } else
5828 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5829
5830 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5831
c0692b8f 5832 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5833 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5834 if (err)
5835 return err;
b23aa676 5836
074ac8df 5837 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5838 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5839 return -EOPNOTSUPP;
b23aa676 5840
79c97e97 5841 wiphy = &rdev->wiphy;
b23aa676 5842
4486ea98
BS		 5843 connect.bg_scan_period = -1;
5844 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5845 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5846 connect.bg_scan_period =
5847 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5848 }
5849
b23aa676
SO		 5850 if (info->attrs[NL80211_ATTR_MAC])
5851 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5852 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5853 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5854
5855 if (info->attrs[NL80211_ATTR_IE]) {
5856 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5857 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5858 }
5859
5860 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5861 connect.channel =
5862 ieee80211_get_channel(wiphy,
5863 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5864 if (!connect.channel ||
4c476991
JB		 5865 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5866 return -EINVAL;
b23aa676
SO		 5867 }
5868
fffd0934
JB		 5869 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5870 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 5871 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 5872 if (IS_ERR(connkeys))
5873 return PTR_ERR(connkeys);
fffd0934
JB		 5874 }
5875
7e7c8926
BG		 5876 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5877 connect.flags |= ASSOC_REQ_DISABLE_HT;
5878
5879 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5880 memcpy(&connect.ht_capa_mask,
5881 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5882 sizeof(connect.ht_capa_mask));
5883
5884 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 5885 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5886 kfree(connkeys);
7e7c8926 5887 return -EINVAL;
b4e4f47e 5888 }
7e7c8926
BG		 5889 memcpy(&connect.ht_capa,
5890 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5891 sizeof(connect.ht_capa));
5892 }
5893
fffd0934 5894 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5895 if (err)
5896 kfree(connkeys);
b23aa676
SO		 5897 return err;
5898}
5899
5900static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5901{
4c476991
JB		 5902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5903 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5904 u16 reason;
5905
5906 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5907 reason = WLAN_REASON_DEAUTH_LEAVING;
5908 else
5909 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5910
5911 if (reason == 0)
5912 return -EINVAL;
5913
074ac8df 5914 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5915 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5916 return -EOPNOTSUPP;
b23aa676 5917
4c476991 5918 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5919}
5920
463d0183
JB		 5921static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5922{
4c476991 5923 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5924 struct net *net;
5925 int err;
5926 u32 pid;
5927
5928 if (!info->attrs[NL80211_ATTR_PID])
5929 return -EINVAL;
5930
5931 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5932
463d0183 5933 net = get_net_ns_by_pid(pid);
4c476991
JB		 5934 if (IS_ERR(net))
5935 return PTR_ERR(net);
463d0183
JB		 5936
5937 err = 0;
5938
5939 /* check if anything to do */
4c476991
JB		 5940 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5941 err = cfg80211_switch_netns(rdev, net);
463d0183 5942
463d0183 5943 put_net(net);
463d0183
JB		 5944 return err;
5945}
5946
67fbb16b
SO		 5947static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5948{
4c476991 5949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5950 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5951 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5952 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5953 struct cfg80211_pmksa pmksa;
5954
5955 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5956
5957 if (!info->attrs[NL80211_ATTR_MAC])
5958 return -EINVAL;
5959
5960 if (!info->attrs[NL80211_ATTR_PMKID])
5961 return -EINVAL;
5962
67fbb16b
SO		 5963 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5964 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5965
074ac8df 5966 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5967 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5968 return -EOPNOTSUPP;
67fbb16b
SO		 5969
5970 switch (info->genlhdr->cmd) {
5971 case NL80211_CMD_SET_PMKSA:
5972 rdev_ops = rdev->ops->set_pmksa;
5973 break;
5974 case NL80211_CMD_DEL_PMKSA:
5975 rdev_ops = rdev->ops->del_pmksa;
5976 break;
5977 default:
5978 WARN_ON(1);
5979 break;
5980 }
5981
4c476991
JB		 5982 if (!rdev_ops)
5983 return -EOPNOTSUPP;
67fbb16b 5984
4c476991 5985 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5986}
5987
5988static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5989{
4c476991
JB		 5990 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5991 struct net_device *dev = info->user_ptr[1];
67fbb16b 5992
074ac8df 5993 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5994 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5995 return -EOPNOTSUPP;
67fbb16b 5996
4c476991
JB		 5997 if (!rdev->ops->flush_pmksa)
5998 return -EOPNOTSUPP;
67fbb16b 5999
e35e4d28 6000 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6001}
6002
109086ce
AN		 6003static int nl80211_tdls_mgmt(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 u8 action_code, dialog_token;
6008 u16 status_code;
6009 u8 *peer;
6010
6011 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6012 !rdev->ops->tdls_mgmt)
6013 return -EOPNOTSUPP;
6014
6015 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6016 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6017 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6018 !info->attrs[NL80211_ATTR_IE] ||
6019 !info->attrs[NL80211_ATTR_MAC])
6020 return -EINVAL;
6021
6022 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6023 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6024 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6025 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6026
e35e4d28
HG		 6027 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6028 dialog_token, status_code,
6029 nla_data(info->attrs[NL80211_ATTR_IE]),
6030 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6031}
6032
6033static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6034{
6035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6036 struct net_device *dev = info->user_ptr[1];
6037 enum nl80211_tdls_operation operation;
6038 u8 *peer;
6039
6040 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6041 !rdev->ops->tdls_oper)
6042 return -EOPNOTSUPP;
6043
6044 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6045 !info->attrs[NL80211_ATTR_MAC])
6046 return -EINVAL;
6047
6048 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6049 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6050
e35e4d28 6051 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6052}
6053
9588bbd5
JM		 6054static int nl80211_remain_on_channel(struct sk_buff *skb,
6055 struct genl_info *info)
6056{
4c476991 6057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6058 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6059 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6060 struct sk_buff *msg;
6061 void *hdr;
6062 u64 cookie;
683b6d3b 6063 u32 duration;
9588bbd5
JM		 6064 int err;
6065
6066 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6067 !info->attrs[NL80211_ATTR_DURATION])
6068 return -EINVAL;
6069
6070 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6071
ebf348fc
JB		 6072 if (!rdev->ops->remain_on_channel ||
6073 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6074 return -EOPNOTSUPP;
6075
9588bbd5 6076 /*
ebf348fc
JB		 6077 * We should be on that channel for at least a minimum amount of
6078 * time (10ms) but no longer than the driver supports.
9588bbd5 6079 */
ebf348fc 6080 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6081 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6082 return -EINVAL;
6083
683b6d3b
JB		 6084 err = nl80211_parse_chandef(rdev, info, &chandef);
6085 if (err)
6086 return err;
9588bbd5
JM		 6087
6088 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6089 if (!msg)
6090 return -ENOMEM;
9588bbd5 6091
15e47304 6092 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6093 NL80211_CMD_REMAIN_ON_CHANNEL);
6094
6095 if (IS_ERR(hdr)) {
6096 err = PTR_ERR(hdr);
6097 goto free_msg;
6098 }
6099
683b6d3b
JB		 6100 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6101 duration, &cookie);
9588bbd5
JM		 6102
6103 if (err)
6104 goto free_msg;
6105
9360ffd1
DM		 6106 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6107 goto nla_put_failure;
9588bbd5
JM		 6108
6109 genlmsg_end(msg, hdr);
4c476991
JB		 6110
6111 return genlmsg_reply(msg, info);
9588bbd5
JM		 6112
6113 nla_put_failure:
6114 err = -ENOBUFS;
6115 free_msg:
6116 nlmsg_free(msg);
9588bbd5
JM		 6117 return err;
6118}
6119
6120static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6121 struct genl_info *info)
6122{
4c476991 6123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6124 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6125 u64 cookie;
9588bbd5
JM		 6126
6127 if (!info->attrs[NL80211_ATTR_COOKIE])
6128 return -EINVAL;
6129
4c476991
JB		 6130 if (!rdev->ops->cancel_remain_on_channel)
6131 return -EOPNOTSUPP;
9588bbd5 6132
9588bbd5
JM		 6133 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6134
e35e4d28 6135 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6136}
6137
13ae75b1
JM		 6138static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6139 u8 *rates, u8 rates_len)
6140{
6141 u8 i;
6142 u32 mask = 0;
6143
6144 for (i = 0; i < rates_len; i++) {
6145 int rate = (rates[i] & 0x7f) * 5;
6146 int ridx;
6147 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6148 struct ieee80211_rate *srate =
6149 &sband->bitrates[ridx];
6150 if (rate == srate->bitrate) {
6151 mask |= 1 << ridx;
6152 break;
6153 }
6154 }
6155 if (ridx == sband->n_bitrates)
6156 return 0; /* rate not found */
6157 }
6158
6159 return mask;
6160}
6161
24db78c0
SW		 6162static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6163 u8 *rates, u8 rates_len,
6164 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6165{
6166 u8 i;
6167
6168 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6169
6170 for (i = 0; i < rates_len; i++) {
6171 int ridx, rbit;
6172
6173 ridx = rates[i] / 8;
6174 rbit = BIT(rates[i] % 8);
6175
6176 /* check validity */
910570b5 6177 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6178 return false;
6179
6180 /* check availability */
6181 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6182 mcs[ridx] |= rbit;
6183 else
6184 return false;
6185 }
6186
6187 return true;
6188}
6189
b54452b0 6190static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6191 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6192 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6193 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6194 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6195};
6196
6197static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6198 struct genl_info *info)
6199{
6200 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6202 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6203 int rem, i;
6204 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6205 struct nlattr *tx_rates;
6206 struct ieee80211_supported_band *sband;
6207
6208 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6209 return -EINVAL;
6210
4c476991
JB		 6211 if (!rdev->ops->set_bitrate_mask)
6212 return -EOPNOTSUPP;
13ae75b1
JM		 6213
6214 memset(&mask, 0, sizeof(mask));
6215 /* Default to all rates enabled */
6216 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6217 sband = rdev->wiphy.bands[i];
6218 mask.control[i].legacy =
6219 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6220 if (sband)
6221 memcpy(mask.control[i].mcs,
6222 sband->ht_cap.mcs.rx_mask,
6223 sizeof(mask.control[i].mcs));
6224 else
6225 memset(mask.control[i].mcs, 0,
6226 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6227 }
6228
6229 /*
6230 * The nested attribute uses enum nl80211_band as the index. This maps
6231 * directly to the enum ieee80211_band values used in cfg80211.
6232 */
24db78c0 6233 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6234 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6235 {
6236 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6237 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6238 return -EINVAL;
13ae75b1 6239 sband = rdev->wiphy.bands[band];
4c476991
JB		 6240 if (sband == NULL)
6241 return -EINVAL;
13ae75b1
JM		 6242 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6243 nla_len(tx_rates), nl80211_txattr_policy);
6244 if (tb[NL80211_TXRATE_LEGACY]) {
6245 mask.control[band].legacy = rateset_to_mask(
6246 sband,
6247 nla_data(tb[NL80211_TXRATE_LEGACY]),
6248 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6249 if ((mask.control[band].legacy == 0) &&
6250 nla_len(tb[NL80211_TXRATE_LEGACY]))
6251 return -EINVAL;
24db78c0
SW		 6252 }
6253 if (tb[NL80211_TXRATE_MCS]) {
6254 if (!ht_rateset_to_mask(
6255 sband,
6256 nla_data(tb[NL80211_TXRATE_MCS]),
6257 nla_len(tb[NL80211_TXRATE_MCS]),
6258 mask.control[band].mcs))
6259 return -EINVAL;
6260 }
6261
6262 if (mask.control[band].legacy == 0) {
6263 /* don't allow empty legacy rates if HT
6264 * is not even supported. */
6265 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6266 return -EINVAL;
6267
6268 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6269 if (mask.control[band].mcs[i])
6270 break;
6271
6272 /* legacy and mcs rates may not be both empty */
6273 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6274 return -EINVAL;
13ae75b1
JM		 6275 }
6276 }
6277
e35e4d28 6278 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 6279}
6280
2e161f78 6281static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6282{
4c476991 6283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6284 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6285 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6286
6287 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6288 return -EINVAL;
6289
2e161f78
JB		 6290 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6291 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6292
71bbc994
JB		 6293 switch (wdev->iftype) {
6294 case NL80211_IFTYPE_STATION:
6295 case NL80211_IFTYPE_ADHOC:
6296 case NL80211_IFTYPE_P2P_CLIENT:
6297 case NL80211_IFTYPE_AP:
6298 case NL80211_IFTYPE_AP_VLAN:
6299 case NL80211_IFTYPE_MESH_POINT:
6300 case NL80211_IFTYPE_P2P_GO:
98104fde 6301 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6302 break;
6303 default:
4c476991 6304 return -EOPNOTSUPP;
71bbc994 6305 }
026331c4
JM		 6306
6307 /* not much point in registering if we can't reply */
4c476991
JB		 6308 if (!rdev->ops->mgmt_tx)
6309 return -EOPNOTSUPP;
026331c4 6310
15e47304 6311 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6312 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6313 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6314}
6315
2e161f78 6316static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6317{
4c476991 6318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6319 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6320 struct cfg80211_chan_def chandef;
026331c4 6321 int err;
d64d373f 6322 void *hdr = NULL;
026331c4 6323 u64 cookie;
e247bd90 6324 struct sk_buff *msg = NULL;
f7ca38df 6325 unsigned int wait = 0;
e247bd90
JB		 6326 bool offchan, no_cck, dont_wait_for_ack;
6327
6328 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 6329
683b6d3b 6330 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 6331 return -EINVAL;
6332
4c476991
JB		 6333 if (!rdev->ops->mgmt_tx)
6334 return -EOPNOTSUPP;
026331c4 6335
71bbc994
JB		 6336 switch (wdev->iftype) {
6337 case NL80211_IFTYPE_STATION:
6338 case NL80211_IFTYPE_ADHOC:
6339 case NL80211_IFTYPE_P2P_CLIENT:
6340 case NL80211_IFTYPE_AP:
6341 case NL80211_IFTYPE_AP_VLAN:
6342 case NL80211_IFTYPE_MESH_POINT:
6343 case NL80211_IFTYPE_P2P_GO:
98104fde 6344 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6345 break;
6346 default:
4c476991 6347 return -EOPNOTSUPP;
71bbc994 6348 }
026331c4 6349
f7ca38df 6350 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6351 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6352 return -EINVAL;
6353 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6354
6355 /*
6356 * We should wait on the channel for at least a minimum amount
6357 * of time (10ms) but no longer than the driver supports.
6358 */
6359 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6360 wait > rdev->wiphy.max_remain_on_channel_duration)
6361 return -EINVAL;
6362
f7ca38df
JB		 6363 }
6364
f7ca38df
JB		 6365 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6366
7c4ef712
JB		 6367 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6368 return -EINVAL;
6369
e9f935e3
RM		 6370 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6371
683b6d3b
JB		 6372 err = nl80211_parse_chandef(rdev, info, &chandef);
6373 if (err)
6374 return err;
026331c4 6375
e247bd90
JB		 6376 if (!dont_wait_for_ack) {
6377 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6378 if (!msg)
6379 return -ENOMEM;
026331c4 6380
15e47304 6381 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6382 NL80211_CMD_FRAME);
026331c4 6383
e247bd90
JB		 6384 if (IS_ERR(hdr)) {
6385 err = PTR_ERR(hdr);
6386 goto free_msg;
6387 }
026331c4 6388 }
e247bd90 6389
683b6d3b 6390 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 6391 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6392 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6393 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6394 if (err)
6395 goto free_msg;
6396
e247bd90 6397 if (msg) {
9360ffd1
DM		 6398 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6399 goto nla_put_failure;
026331c4 6400
e247bd90
JB		 6401 genlmsg_end(msg, hdr);
6402 return genlmsg_reply(msg, info);
6403 }
6404
6405 return 0;
026331c4
JM		 6406
6407 nla_put_failure:
6408 err = -ENOBUFS;
6409 free_msg:
6410 nlmsg_free(msg);
026331c4
JM		 6411 return err;
6412}
6413
f7ca38df
JB		 6414static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6415{
6416 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6417 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6418 u64 cookie;
6419
6420 if (!info->attrs[NL80211_ATTR_COOKIE])
6421 return -EINVAL;
6422
6423 if (!rdev->ops->mgmt_tx_cancel_wait)
6424 return -EOPNOTSUPP;
6425
71bbc994
JB		 6426 switch (wdev->iftype) {
6427 case NL80211_IFTYPE_STATION:
6428 case NL80211_IFTYPE_ADHOC:
6429 case NL80211_IFTYPE_P2P_CLIENT:
6430 case NL80211_IFTYPE_AP:
6431 case NL80211_IFTYPE_AP_VLAN:
6432 case NL80211_IFTYPE_P2P_GO:
98104fde 6433 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6434 break;
6435 default:
f7ca38df 6436 return -EOPNOTSUPP;
71bbc994 6437 }
f7ca38df
JB		 6438
6439 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6440
e35e4d28 6441 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 6442}
6443
ffb9eb3d
KV		 6444static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6445{
4c476991 6446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6447 struct wireless_dev *wdev;
4c476991 6448 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6449 u8 ps_state;
6450 bool state;
6451 int err;
6452
4c476991
JB		 6453 if (!info->attrs[NL80211_ATTR_PS_STATE])
6454 return -EINVAL;
ffb9eb3d
KV		 6455
6456 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6457
4c476991
JB		 6458 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6459 return -EINVAL;
ffb9eb3d
KV		 6460
6461 wdev = dev->ieee80211_ptr;
6462
4c476991
JB		 6463 if (!rdev->ops->set_power_mgmt)
6464 return -EOPNOTSUPP;
ffb9eb3d
KV		 6465
6466 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6467
6468 if (state == wdev->ps)
4c476991 6469 return 0;
ffb9eb3d 6470
e35e4d28 6471 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 6472 if (!err)
6473 wdev->ps = state;
ffb9eb3d
KV		 6474 return err;
6475}
6476
6477static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6478{
4c476991 6479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6480 enum nl80211_ps_state ps_state;
6481 struct wireless_dev *wdev;
4c476991 6482 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6483 struct sk_buff *msg;
6484 void *hdr;
6485 int err;
6486
ffb9eb3d
KV		 6487 wdev = dev->ieee80211_ptr;
6488
4c476991
JB		 6489 if (!rdev->ops->set_power_mgmt)
6490 return -EOPNOTSUPP;
ffb9eb3d
KV		 6491
6492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6493 if (!msg)
6494 return -ENOMEM;
ffb9eb3d 6495
15e47304 6496 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6497 NL80211_CMD_GET_POWER_SAVE);
6498 if (!hdr) {
4c476991 6499 err = -ENOBUFS;
ffb9eb3d
KV		 6500 goto free_msg;
6501 }
6502
6503 if (wdev->ps)
6504 ps_state = NL80211_PS_ENABLED;
6505 else
6506 ps_state = NL80211_PS_DISABLED;
6507
9360ffd1
DM		 6508 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6509 goto nla_put_failure;
ffb9eb3d
KV		 6510
6511 genlmsg_end(msg, hdr);
4c476991 6512 return genlmsg_reply(msg, info);
ffb9eb3d 6513
4c476991 6514 nla_put_failure:
ffb9eb3d 6515 err = -ENOBUFS;
4c476991 6516 free_msg:
ffb9eb3d 6517 nlmsg_free(msg);
ffb9eb3d
KV		 6518 return err;
6519}
6520
d6dc1a38
JO		 6521static struct nla_policy
6522nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6523 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6524 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6525 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6526 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6527 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6528 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6529};
6530
84f10708
TP		 6531static int nl80211_set_cqm_txe(struct genl_info *info,
6532 u32 rate, u32 pkts, u32 intvl)
6533{
6534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6535 struct wireless_dev *wdev;
6536 struct net_device *dev = info->user_ptr[1];
6537
6538 if ((rate < 0 || rate > 100) ||
6539 (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
6540 return -EINVAL;
6541
6542 wdev = dev->ieee80211_ptr;
6543
6544 if (!rdev->ops->set_cqm_txe_config)
6545 return -EOPNOTSUPP;
6546
6547 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6548 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6549 return -EOPNOTSUPP;
6550
e35e4d28 6551 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 6552}
6553
d6dc1a38
JO		 6554static int nl80211_set_cqm_rssi(struct genl_info *info,
6555 s32 threshold, u32 hysteresis)
6556{
4c476991 6557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6558 struct wireless_dev *wdev;
4c476991 6559 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6560
6561 if (threshold > 0)
6562 return -EINVAL;
6563
d6dc1a38
JO		 6564 wdev = dev->ieee80211_ptr;
6565
4c476991
JB		 6566 if (!rdev->ops->set_cqm_rssi_config)
6567 return -EOPNOTSUPP;
d6dc1a38 6568
074ac8df 6569 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6570 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6571 return -EOPNOTSUPP;
d6dc1a38 6572
e35e4d28 6573 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 6574}
6575
6576static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6577{
6578 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6579 struct nlattr *cqm;
6580 int err;
6581
6582 cqm = info->attrs[NL80211_ATTR_CQM];
6583 if (!cqm) {
6584 err = -EINVAL;
6585 goto out;
6586 }
6587
6588 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6589 nl80211_attr_cqm_policy);
6590 if (err)
6591 goto out;
6592
6593 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6594 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6595 s32 threshold;
6596 u32 hysteresis;
6597 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6598 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6599 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 6600 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6601 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6602 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6603 u32 rate, pkts, intvl;
6604 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6605 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6606 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6607 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 6608 } else
6609 err = -EINVAL;
6610
6611out:
6612 return err;
6613}
6614
29cbe68c
JB		 6615static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6616{
6617 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6618 struct net_device *dev = info->user_ptr[1];
6619 struct mesh_config cfg;
c80d545d 6620 struct mesh_setup setup;
29cbe68c
JB		 6621 int err;
6622
6623 /* start with default */
6624 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6625 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6626
24bdd9f4 6627 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6628 /* and parse parameters if given */
24bdd9f4 6629 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6630 if (err)
6631 return err;
6632 }
6633
6634 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6635 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6636 return -EINVAL;
6637
c80d545d
JC		 6638 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6639 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6640
4bb62344
CYY		 6641 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6642 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6643 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6644 return -EINVAL;
6645
c80d545d
JC		 6646 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6647 /* parse additional setup parameters if given */
6648 err = nl80211_parse_mesh_setup(info, &setup);
6649 if (err)
6650 return err;
6651 }
6652
cc1d2806 6653 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 6654 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
6655 if (err)
6656 return err;
cc1d2806
JB		 6657 } else {
6658 /* cfg80211_join_mesh() will sort it out */
683b6d3b 6659 setup.chandef.chan = NULL;
cc1d2806
JB		 6660 }
6661
c80d545d 6662 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6663}
6664
6665static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6666{
6667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6668 struct net_device *dev = info->user_ptr[1];
6669
6670 return cfg80211_leave_mesh(rdev, dev);
6671}
6672
dfb89c56 6673#ifdef CONFIG_PM
ff1b6e69
JB		 6674static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6675{
6676 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6677 struct sk_buff *msg;
6678 void *hdr;
6679
6680 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6681 return -EOPNOTSUPP;
6682
6683 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6684 if (!msg)
6685 return -ENOMEM;
6686
15e47304 6687 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 6688 NL80211_CMD_GET_WOWLAN);
6689 if (!hdr)
6690 goto nla_put_failure;
6691
6692 if (rdev->wowlan) {
6693 struct nlattr *nl_wowlan;
6694
6695 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6696 if (!nl_wowlan)
6697 goto nla_put_failure;
6698
9360ffd1
DM		 6699 if ((rdev->wowlan->any &&
6700 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6701 (rdev->wowlan->disconnect &&
6702 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6703 (rdev->wowlan->magic_pkt &&
6704 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6705 (rdev->wowlan->gtk_rekey_failure &&
6706 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6707 (rdev->wowlan->eap_identity_req &&
6708 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6709 (rdev->wowlan->four_way_handshake &&
6710 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6711 (rdev->wowlan->rfkill_release &&
6712 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6713 goto nla_put_failure;
ff1b6e69
JB		 6714 if (rdev->wowlan->n_patterns) {
6715 struct nlattr *nl_pats, *nl_pat;
6716 int i, pat_len;
6717
6718 nl_pats = nla_nest_start(msg,
6719 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6720 if (!nl_pats)
6721 goto nla_put_failure;
6722
6723 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6724 nl_pat = nla_nest_start(msg, i + 1);
6725 if (!nl_pat)
6726 goto nla_put_failure;
6727 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6728 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6729 DIV_ROUND_UP(pat_len, 8),
6730 rdev->wowlan->patterns[i].mask) ||
6731 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6732 pat_len,
6733 rdev->wowlan->patterns[i].pattern))
6734 goto nla_put_failure;
ff1b6e69
JB		 6735 nla_nest_end(msg, nl_pat);
6736 }
6737 nla_nest_end(msg, nl_pats);
6738 }
6739
6740 nla_nest_end(msg, nl_wowlan);
6741 }
6742
6743 genlmsg_end(msg, hdr);
6744 return genlmsg_reply(msg, info);
6745
6746nla_put_failure:
6747 nlmsg_free(msg);
6748 return -ENOBUFS;
6749}
6750
6751static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6752{
6753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6754 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 6755 struct cfg80211_wowlan new_triggers = {};
ae33bd81 6756 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 6757 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6758 int err, i;
6d52563f 6759 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6760
6761 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6762 return -EOPNOTSUPP;
6763
ae33bd81
JB		 6764 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6765 cfg80211_rdev_free_wowlan(rdev);
6766 rdev->wowlan = NULL;
6767 goto set_wakeup;
6768 }
ff1b6e69
JB		 6769
6770 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6771 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6772 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6773 nl80211_wowlan_policy);
6774 if (err)
6775 return err;
6776
6777 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6778 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6779 return -EINVAL;
6780 new_triggers.any = true;
6781 }
6782
6783 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6784 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6785 return -EINVAL;
6786 new_triggers.disconnect = true;
6787 }
6788
6789 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6790 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6791 return -EINVAL;
6792 new_triggers.magic_pkt = true;
6793 }
6794
77dbbb13
JB		 6795 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6796 return -EINVAL;
6797
6798 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6799 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6800 return -EINVAL;
6801 new_triggers.gtk_rekey_failure = true;
6802 }
6803
6804 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6805 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6806 return -EINVAL;
6807 new_triggers.eap_identity_req = true;
6808 }
6809
6810 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6811 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6812 return -EINVAL;
6813 new_triggers.four_way_handshake = true;
6814 }
6815
6816 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6817 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6818 return -EINVAL;
6819 new_triggers.rfkill_release = true;
6820 }
6821
ff1b6e69
JB		 6822 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6823 struct nlattr *pat;
6824 int n_patterns = 0;
6825 int rem, pat_len, mask_len;
6826 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6827
6828 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6829 rem)
6830 n_patterns++;
6831 if (n_patterns > wowlan->n_patterns)
6832 return -EINVAL;
6833
6834 new_triggers.patterns = kcalloc(n_patterns,
6835 sizeof(new_triggers.patterns[0]),
6836 GFP_KERNEL);
6837 if (!new_triggers.patterns)
6838 return -ENOMEM;
6839
6840 new_triggers.n_patterns = n_patterns;
6841 i = 0;
6842
6843 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6844 rem) {
6845 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6846 nla_data(pat), nla_len(pat), NULL);
6847 err = -EINVAL;
6848 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6849 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6850 goto error;
6851 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6852 mask_len = DIV_ROUND_UP(pat_len, 8);
6853 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6854 mask_len)
6855 goto error;
6856 if (pat_len > wowlan->pattern_max_len ||
6857 pat_len < wowlan->pattern_min_len)
6858 goto error;
6859
6860 new_triggers.patterns[i].mask =
6861 kmalloc(mask_len + pat_len, GFP_KERNEL);
6862 if (!new_triggers.patterns[i].mask) {
6863 err = -ENOMEM;
6864 goto error;
6865 }
6866 new_triggers.patterns[i].pattern =
6867 new_triggers.patterns[i].mask + mask_len;
6868 memcpy(new_triggers.patterns[i].mask,
6869 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6870 mask_len);
6871 new_triggers.patterns[i].pattern_len = pat_len;
6872 memcpy(new_triggers.patterns[i].pattern,
6873 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6874 pat_len);
6875 i++;
6876 }
6877 }
6878
ae33bd81
JB		 6879 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6880 if (!ntrig) {
6881 err = -ENOMEM;
6882 goto error;
ff1b6e69 6883 }
ae33bd81
JB		 6884 cfg80211_rdev_free_wowlan(rdev);
6885 rdev->wowlan = ntrig;
ff1b6e69 6886
ae33bd81 6887 set_wakeup:
6d52563f 6888 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 6889 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 6890
ff1b6e69
JB		 6891 return 0;
6892 error:
6893 for (i = 0; i < new_triggers.n_patterns; i++)
6894 kfree(new_triggers.patterns[i].mask);
6895 kfree(new_triggers.patterns);
6896 return err;
6897}
dfb89c56 6898#endif
ff1b6e69 6899
e5497d76
JB		 6900static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6901{
6902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6903 struct net_device *dev = info->user_ptr[1];
6904 struct wireless_dev *wdev = dev->ieee80211_ptr;
6905 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6906 struct cfg80211_gtk_rekey_data rekey_data;
6907 int err;
6908
6909 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6910 return -EINVAL;
6911
6912 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6913 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6914 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6915 nl80211_rekey_policy);
6916 if (err)
6917 return err;
6918
6919 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6920 return -ERANGE;
6921 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6922 return -ERANGE;
6923 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6924 return -ERANGE;
6925
6926 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6927 NL80211_KEK_LEN);
6928 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6929 NL80211_KCK_LEN);
6930 memcpy(rekey_data.replay_ctr,
6931 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6932 NL80211_REPLAY_CTR_LEN);
6933
6934 wdev_lock(wdev);
6935 if (!wdev->current_bss) {
6936 err = -ENOTCONN;
6937 goto out;
6938 }
6939
6940 if (!rdev->ops->set_rekey_data) {
6941 err = -EOPNOTSUPP;
6942 goto out;
6943 }
6944
e35e4d28 6945 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 6946 out:
6947 wdev_unlock(wdev);
6948 return err;
6949}
6950
28946da7
JB		 6951static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6952 struct genl_info *info)
6953{
6954 struct net_device *dev = info->user_ptr[1];
6955 struct wireless_dev *wdev = dev->ieee80211_ptr;
6956
6957 if (wdev->iftype != NL80211_IFTYPE_AP &&
6958 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6959 return -EINVAL;
6960
15e47304 6961 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 6962 return -EBUSY;
6963
15e47304 6964 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 6965 return 0;
6966}
6967
7f6cf311
JB		 6968static int nl80211_probe_client(struct sk_buff *skb,
6969 struct genl_info *info)
6970{
6971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6972 struct net_device *dev = info->user_ptr[1];
6973 struct wireless_dev *wdev = dev->ieee80211_ptr;
6974 struct sk_buff *msg;
6975 void *hdr;
6976 const u8 *addr;
6977 u64 cookie;
6978 int err;
6979
6980 if (wdev->iftype != NL80211_IFTYPE_AP &&
6981 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6982 return -EOPNOTSUPP;
6983
6984 if (!info->attrs[NL80211_ATTR_MAC])
6985 return -EINVAL;
6986
6987 if (!rdev->ops->probe_client)
6988 return -EOPNOTSUPP;
6989
6990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6991 if (!msg)
6992 return -ENOMEM;
6993
15e47304 6994 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 6995 NL80211_CMD_PROBE_CLIENT);
6996
6997 if (IS_ERR(hdr)) {
6998 err = PTR_ERR(hdr);
6999 goto free_msg;
7000 }
7001
7002 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7003
e35e4d28 7004 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 7005 if (err)
7006 goto free_msg;
7007
9360ffd1
DM		 7008 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7009 goto nla_put_failure;
7f6cf311
JB		 7010
7011 genlmsg_end(msg, hdr);
7012
7013 return genlmsg_reply(msg, info);
7014
7015 nla_put_failure:
7016 err = -ENOBUFS;
7017 free_msg:
7018 nlmsg_free(msg);
7019 return err;
7020}
7021
5e760230
JB		 7022static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7023{
7024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 7025 struct cfg80211_beacon_registration *reg, *nreg;
7026 int rv;
5e760230
JB		 7027
7028 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7029 return -EOPNOTSUPP;
7030
37c73b5f
BG		 7031 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7032 if (!nreg)
7033 return -ENOMEM;
7034
7035 /* First, check if already registered. */
7036 spin_lock_bh(&rdev->beacon_registrations_lock);
7037 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7038 if (reg->nlportid == info->snd_portid) {
7039 rv = -EALREADY;
7040 goto out_err;
7041 }
7042 }
7043 /* Add it to the list */
7044 nreg->nlportid = info->snd_portid;
7045 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 7046
37c73b5f 7047 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 7048
7049 return 0;
37c73b5f
BG		 7050out_err:
7051 spin_unlock_bh(&rdev->beacon_registrations_lock);
7052 kfree(nreg);
7053 return rv;
5e760230
JB		 7054}
7055
98104fde
JB		 7056static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7057{
7058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7059 struct wireless_dev *wdev = info->user_ptr[1];
7060 int err;
7061
7062 if (!rdev->ops->start_p2p_device)
7063 return -EOPNOTSUPP;
7064
7065 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7066 return -EOPNOTSUPP;
7067
7068 if (wdev->p2p_started)
7069 return 0;
7070
7071 mutex_lock(&rdev->devlist_mtx);
7072 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7073 mutex_unlock(&rdev->devlist_mtx);
7074 if (err)
7075 return err;
7076
eeb126e9 7077 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 7078 if (err)
7079 return err;
7080
7081 wdev->p2p_started = true;
7082 mutex_lock(&rdev->devlist_mtx);
7083 rdev->opencount++;
7084 mutex_unlock(&rdev->devlist_mtx);
7085
7086 return 0;
7087}
7088
7089static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7090{
7091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7092 struct wireless_dev *wdev = info->user_ptr[1];
7093
7094 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7095 return -EOPNOTSUPP;
7096
7097 if (!rdev->ops->stop_p2p_device)
7098 return -EOPNOTSUPP;
7099
7100 if (!wdev->p2p_started)
7101 return 0;
7102
eeb126e9 7103 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 7104 wdev->p2p_started = false;
7105
7106 mutex_lock(&rdev->devlist_mtx);
7107 rdev->opencount--;
7108 mutex_unlock(&rdev->devlist_mtx);
7109
7110 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7111 rdev->scan_req->aborted = true;
7112 ___cfg80211_scan_done(rdev, true);
7113 }
7114
7115 return 0;
7116}
7117
4c476991
JB		 7118#define NL80211_FLAG_NEED_WIPHY 0x01
7119#define NL80211_FLAG_NEED_NETDEV 0x02
7120#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 7121#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7122#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7123 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 7124#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 7125/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 7126#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7127 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 7128
7129static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7130 struct genl_info *info)
7131{
7132 struct cfg80211_registered_device *rdev;
89a54e48 7133 struct wireless_dev *wdev;
4c476991 7134 struct net_device *dev;
4c476991
JB		 7135 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7136
7137 if (rtnl)
7138 rtnl_lock();
7139
7140 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 7141 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 7142 if (IS_ERR(rdev)) {
7143 if (rtnl)
7144 rtnl_unlock();
7145 return PTR_ERR(rdev);
7146 }
7147 info->user_ptr[0] = rdev;
1bf614ef
JB		 7148 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7149 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7150 mutex_lock(&cfg80211_mutex);
7151 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7152 info->attrs);
7153 if (IS_ERR(wdev)) {
7154 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7155 if (rtnl)
7156 rtnl_unlock();
89a54e48 7157 return PTR_ERR(wdev);
4c476991 7158 }
89a54e48 7159
89a54e48
JB		 7160 dev = wdev->netdev;
7161 rdev = wiphy_to_dev(wdev->wiphy);
7162
1bf614ef
JB		 7163 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7164 if (!dev) {
7165 mutex_unlock(&cfg80211_mutex);
7166 if (rtnl)
7167 rtnl_unlock();
7168 return -EINVAL;
7169 }
7170
7171 info->user_ptr[1] = dev;
7172 } else {
7173 info->user_ptr[1] = wdev;
41265714 7174 }
1bf614ef
JB		 7175
7176 if (dev) {
7177 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7178 !netif_running(dev)) {
7179 mutex_unlock(&cfg80211_mutex);
7180 if (rtnl)
7181 rtnl_unlock();
7182 return -ENETDOWN;
7183 }
7184
7185 dev_hold(dev);
98104fde
JB		 7186 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7187 if (!wdev->p2p_started) {
7188 mutex_unlock(&cfg80211_mutex);
7189 if (rtnl)
7190 rtnl_unlock();
7191 return -ENETDOWN;
7192 }
41265714 7193 }
89a54e48 7194
89a54e48
JB		 7195 cfg80211_lock_rdev(rdev);
7196
7197 mutex_unlock(&cfg80211_mutex);
7198
4c476991 7199 info->user_ptr[0] = rdev;
4c476991
JB		 7200 }
7201
7202 return 0;
7203}
7204
7205static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7206 struct genl_info *info)
7207{
7208 if (info->user_ptr[0])
7209 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7210 if (info->user_ptr[1]) {
7211 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7212 struct wireless_dev *wdev = info->user_ptr[1];
7213
7214 if (wdev->netdev)
7215 dev_put(wdev->netdev);
7216 } else {
7217 dev_put(info->user_ptr[1]);
7218 }
7219 }
4c476991
JB		 7220 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7221 rtnl_unlock();
7222}
7223
55682965
JB		 7224static struct genl_ops nl80211_ops[] = {
7225 {
7226 .cmd = NL80211_CMD_GET_WIPHY,
7227 .doit = nl80211_get_wiphy,
7228 .dumpit = nl80211_dump_wiphy,
7229 .policy = nl80211_policy,
7230 /* can be retrieved by unprivileged users */
4c476991 7231 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7232 },
7233 {
7234 .cmd = NL80211_CMD_SET_WIPHY,
7235 .doit = nl80211_set_wiphy,
7236 .policy = nl80211_policy,
7237 .flags = GENL_ADMIN_PERM,
4c476991 7238 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7239 },
7240 {
7241 .cmd = NL80211_CMD_GET_INTERFACE,
7242 .doit = nl80211_get_interface,
7243 .dumpit = nl80211_dump_interface,
7244 .policy = nl80211_policy,
7245 /* can be retrieved by unprivileged users */
72fb2abc 7246 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7247 },
7248 {
7249 .cmd = NL80211_CMD_SET_INTERFACE,
7250 .doit = nl80211_set_interface,
7251 .policy = nl80211_policy,
7252 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7253 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7254 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7255 },
7256 {
7257 .cmd = NL80211_CMD_NEW_INTERFACE,
7258 .doit = nl80211_new_interface,
7259 .policy = nl80211_policy,
7260 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7261 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7262 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7263 },
7264 {
7265 .cmd = NL80211_CMD_DEL_INTERFACE,
7266 .doit = nl80211_del_interface,
7267 .policy = nl80211_policy,
41ade00f 7268 .flags = GENL_ADMIN_PERM,
84efbb84 7269 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7270 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7271 },
7272 {
7273 .cmd = NL80211_CMD_GET_KEY,
7274 .doit = nl80211_get_key,
7275 .policy = nl80211_policy,
7276 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7278 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7279 },
7280 {
7281 .cmd = NL80211_CMD_SET_KEY,
7282 .doit = nl80211_set_key,
7283 .policy = nl80211_policy,
7284 .flags = GENL_ADMIN_PERM,
41265714 7285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7286 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7287 },
7288 {
7289 .cmd = NL80211_CMD_NEW_KEY,
7290 .doit = nl80211_new_key,
7291 .policy = nl80211_policy,
7292 .flags = GENL_ADMIN_PERM,
41265714 7293 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7294 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7295 },
7296 {
7297 .cmd = NL80211_CMD_DEL_KEY,
7298 .doit = nl80211_del_key,
7299 .policy = nl80211_policy,
55682965 7300 .flags = GENL_ADMIN_PERM,
41265714 7301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7302 NL80211_FLAG_NEED_RTNL,
55682965 7303 },
ed1b6cc7
JB		 7304 {
7305 .cmd = NL80211_CMD_SET_BEACON,
7306 .policy = nl80211_policy,
7307 .flags = GENL_ADMIN_PERM,
8860020e 7308 .doit = nl80211_set_beacon,
2b5f8b0b 7309 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7310 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7311 },
7312 {
8860020e 7313 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7314 .policy = nl80211_policy,
7315 .flags = GENL_ADMIN_PERM,
8860020e 7316 .doit = nl80211_start_ap,
2b5f8b0b 7317 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7318 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7319 },
7320 {
8860020e 7321 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7322 .policy = nl80211_policy,
7323 .flags = GENL_ADMIN_PERM,
8860020e 7324 .doit = nl80211_stop_ap,
2b5f8b0b 7325 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7326 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7327 },
5727ef1b
JB		 7328 {
7329 .cmd = NL80211_CMD_GET_STATION,
7330 .doit = nl80211_get_station,
2ec600d6 7331 .dumpit = nl80211_dump_station,
5727ef1b 7332 .policy = nl80211_policy,
4c476991
JB		 7333 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7334 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7335 },
7336 {
7337 .cmd = NL80211_CMD_SET_STATION,
7338 .doit = nl80211_set_station,
7339 .policy = nl80211_policy,
7340 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7341 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7342 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7343 },
7344 {
7345 .cmd = NL80211_CMD_NEW_STATION,
7346 .doit = nl80211_new_station,
7347 .policy = nl80211_policy,
7348 .flags = GENL_ADMIN_PERM,
41265714 7349 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7350 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7351 },
7352 {
7353 .cmd = NL80211_CMD_DEL_STATION,
7354 .doit = nl80211_del_station,
7355 .policy = nl80211_policy,
2ec600d6 7356 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7358 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7359 },
7360 {
7361 .cmd = NL80211_CMD_GET_MPATH,
7362 .doit = nl80211_get_mpath,
7363 .dumpit = nl80211_dump_mpath,
7364 .policy = nl80211_policy,
7365 .flags = GENL_ADMIN_PERM,
41265714 7366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7367 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7368 },
7369 {
7370 .cmd = NL80211_CMD_SET_MPATH,
7371 .doit = nl80211_set_mpath,
7372 .policy = nl80211_policy,
7373 .flags = GENL_ADMIN_PERM,
41265714 7374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7375 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7376 },
7377 {
7378 .cmd = NL80211_CMD_NEW_MPATH,
7379 .doit = nl80211_new_mpath,
7380 .policy = nl80211_policy,
7381 .flags = GENL_ADMIN_PERM,
41265714 7382 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7383 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7384 },
7385 {
7386 .cmd = NL80211_CMD_DEL_MPATH,
7387 .doit = nl80211_del_mpath,
7388 .policy = nl80211_policy,
9f1ba906 7389 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7390 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7391 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 7392 },
7393 {
7394 .cmd = NL80211_CMD_SET_BSS,
7395 .doit = nl80211_set_bss,
7396 .policy = nl80211_policy,
b2e1b302 7397 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7399 NL80211_FLAG_NEED_RTNL,
b2e1b302 7400 },
f130347c
LR		 7401 {
7402 .cmd = NL80211_CMD_GET_REG,
7403 .doit = nl80211_get_reg,
7404 .policy = nl80211_policy,
7405 /* can be retrieved by unprivileged users */
7406 },
b2e1b302
LR		 7407 {
7408 .cmd = NL80211_CMD_SET_REG,
7409 .doit = nl80211_set_reg,
7410 .policy = nl80211_policy,
7411 .flags = GENL_ADMIN_PERM,
7412 },
7413 {
7414 .cmd = NL80211_CMD_REQ_SET_REG,
7415 .doit = nl80211_req_set_reg,
7416 .policy = nl80211_policy,
93da9cc1 7417 .flags = GENL_ADMIN_PERM,
7418 },
7419 {
24bdd9f4
JC		 7420 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7421 .doit = nl80211_get_mesh_config,
93da9cc1 7422 .policy = nl80211_policy,
7423 /* can be retrieved by unprivileged users */
2b5f8b0b 7424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7425 NL80211_FLAG_NEED_RTNL,
93da9cc1 7426 },
7427 {
24bdd9f4
JC		 7428 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7429 .doit = nl80211_update_mesh_config,
93da9cc1 7430 .policy = nl80211_policy,
9aed3cc1 7431 .flags = GENL_ADMIN_PERM,
29cbe68c 7432 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7433 NL80211_FLAG_NEED_RTNL,
9aed3cc1 7434 },
2a519311
JB		 7435 {
7436 .cmd = NL80211_CMD_TRIGGER_SCAN,
7437 .doit = nl80211_trigger_scan,
7438 .policy = nl80211_policy,
7439 .flags = GENL_ADMIN_PERM,
fd014284 7440 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7441 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 7442 },
7443 {
7444 .cmd = NL80211_CMD_GET_SCAN,
7445 .policy = nl80211_policy,
7446 .dumpit = nl80211_dump_scan,
7447 },
807f8a8c
LC		 7448 {
7449 .cmd = NL80211_CMD_START_SCHED_SCAN,
7450 .doit = nl80211_start_sched_scan,
7451 .policy = nl80211_policy,
7452 .flags = GENL_ADMIN_PERM,
7453 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7454 NL80211_FLAG_NEED_RTNL,
7455 },
7456 {
7457 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7458 .doit = nl80211_stop_sched_scan,
7459 .policy = nl80211_policy,
7460 .flags = GENL_ADMIN_PERM,
7461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7462 NL80211_FLAG_NEED_RTNL,
7463 },
636a5d36
JM		 7464 {
7465 .cmd = NL80211_CMD_AUTHENTICATE,
7466 .doit = nl80211_authenticate,
7467 .policy = nl80211_policy,
7468 .flags = GENL_ADMIN_PERM,
41265714 7469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7470 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7471 },
7472 {
7473 .cmd = NL80211_CMD_ASSOCIATE,
7474 .doit = nl80211_associate,
7475 .policy = nl80211_policy,
7476 .flags = GENL_ADMIN_PERM,
41265714 7477 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7478 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7479 },
7480 {
7481 .cmd = NL80211_CMD_DEAUTHENTICATE,
7482 .doit = nl80211_deauthenticate,
7483 .policy = nl80211_policy,
7484 .flags = GENL_ADMIN_PERM,
41265714 7485 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7486 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7487 },
7488 {
7489 .cmd = NL80211_CMD_DISASSOCIATE,
7490 .doit = nl80211_disassociate,
7491 .policy = nl80211_policy,
7492 .flags = GENL_ADMIN_PERM,
41265714 7493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7494 NL80211_FLAG_NEED_RTNL,
636a5d36 7495 },
04a773ad
JB		 7496 {
7497 .cmd = NL80211_CMD_JOIN_IBSS,
7498 .doit = nl80211_join_ibss,
7499 .policy = nl80211_policy,
7500 .flags = GENL_ADMIN_PERM,
41265714 7501 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7502 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 7503 },
7504 {
7505 .cmd = NL80211_CMD_LEAVE_IBSS,
7506 .doit = nl80211_leave_ibss,
7507 .policy = nl80211_policy,
7508 .flags = GENL_ADMIN_PERM,
41265714 7509 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7510 NL80211_FLAG_NEED_RTNL,
04a773ad 7511 },
aff89a9b
JB		 7512#ifdef CONFIG_NL80211_TESTMODE
7513 {
7514 .cmd = NL80211_CMD_TESTMODE,
7515 .doit = nl80211_testmode_do,
71063f0e 7516 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7517 .policy = nl80211_policy,
7518 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7519 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7520 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7521 },
7522#endif
b23aa676
SO		 7523 {
7524 .cmd = NL80211_CMD_CONNECT,
7525 .doit = nl80211_connect,
7526 .policy = nl80211_policy,
7527 .flags = GENL_ADMIN_PERM,
41265714 7528 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7529 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7530 },
7531 {
7532 .cmd = NL80211_CMD_DISCONNECT,
7533 .doit = nl80211_disconnect,
7534 .policy = nl80211_policy,
7535 .flags = GENL_ADMIN_PERM,
41265714 7536 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7537 NL80211_FLAG_NEED_RTNL,
b23aa676 7538 },
463d0183
JB		 7539 {
7540 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7541 .doit = nl80211_wiphy_netns,
7542 .policy = nl80211_policy,
7543 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7544 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7545 NL80211_FLAG_NEED_RTNL,
463d0183 7546 },
61fa713c
HS		 7547 {
7548 .cmd = NL80211_CMD_GET_SURVEY,
7549 .policy = nl80211_policy,
7550 .dumpit = nl80211_dump_survey,
7551 },
67fbb16b
SO		 7552 {
7553 .cmd = NL80211_CMD_SET_PMKSA,
7554 .doit = nl80211_setdel_pmksa,
7555 .policy = nl80211_policy,
7556 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7557 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7558 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7559 },
7560 {
7561 .cmd = NL80211_CMD_DEL_PMKSA,
7562 .doit = nl80211_setdel_pmksa,
7563 .policy = nl80211_policy,
7564 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7565 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7566 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7567 },
7568 {
7569 .cmd = NL80211_CMD_FLUSH_PMKSA,
7570 .doit = nl80211_flush_pmksa,
7571 .policy = nl80211_policy,
7572 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7573 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7574 NL80211_FLAG_NEED_RTNL,
67fbb16b 7575 },
9588bbd5
JM		 7576 {
7577 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7578 .doit = nl80211_remain_on_channel,
7579 .policy = nl80211_policy,
7580 .flags = GENL_ADMIN_PERM,
71bbc994 7581 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7582 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7583 },
7584 {
7585 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7586 .doit = nl80211_cancel_remain_on_channel,
7587 .policy = nl80211_policy,
7588 .flags = GENL_ADMIN_PERM,
71bbc994 7589 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7590 NL80211_FLAG_NEED_RTNL,
9588bbd5 7591 },
13ae75b1
JM		 7592 {
7593 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7594 .doit = nl80211_set_tx_bitrate_mask,
7595 .policy = nl80211_policy,
7596 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7597 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7598 NL80211_FLAG_NEED_RTNL,
13ae75b1 7599 },
026331c4 7600 {
2e161f78
JB		 7601 .cmd = NL80211_CMD_REGISTER_FRAME,
7602 .doit = nl80211_register_mgmt,
026331c4
JM		 7603 .policy = nl80211_policy,
7604 .flags = GENL_ADMIN_PERM,
71bbc994 7605 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7606 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7607 },
7608 {
2e161f78
JB		 7609 .cmd = NL80211_CMD_FRAME,
7610 .doit = nl80211_tx_mgmt,
026331c4 7611 .policy = nl80211_policy,
f7ca38df 7612 .flags = GENL_ADMIN_PERM,
71bbc994 7613 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 7614 NL80211_FLAG_NEED_RTNL,
7615 },
7616 {
7617 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7618 .doit = nl80211_tx_mgmt_cancel_wait,
7619 .policy = nl80211_policy,
026331c4 7620 .flags = GENL_ADMIN_PERM,
71bbc994 7621 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7622 NL80211_FLAG_NEED_RTNL,
026331c4 7623 },
ffb9eb3d
KV		 7624 {
7625 .cmd = NL80211_CMD_SET_POWER_SAVE,
7626 .doit = nl80211_set_power_save,
7627 .policy = nl80211_policy,
7628 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7629 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7630 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7631 },
7632 {
7633 .cmd = NL80211_CMD_GET_POWER_SAVE,
7634 .doit = nl80211_get_power_save,
7635 .policy = nl80211_policy,
7636 /* can be retrieved by unprivileged users */
4c476991
JB		 7637 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7638 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7639 },
d6dc1a38
JO		 7640 {
7641 .cmd = NL80211_CMD_SET_CQM,
7642 .doit = nl80211_set_cqm,
7643 .policy = nl80211_policy,
7644 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7645 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7646 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7647 },
f444de05
JB		 7648 {
7649 .cmd = NL80211_CMD_SET_CHANNEL,
7650 .doit = nl80211_set_channel,
7651 .policy = nl80211_policy,
7652 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7653 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7654 NL80211_FLAG_NEED_RTNL,
f444de05 7655 },
e8347eba
BJ		 7656 {
7657 .cmd = NL80211_CMD_SET_WDS_PEER,
7658 .doit = nl80211_set_wds_peer,
7659 .policy = nl80211_policy,
7660 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7661 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7662 NL80211_FLAG_NEED_RTNL,
e8347eba 7663 },
29cbe68c
JB		 7664 {
7665 .cmd = NL80211_CMD_JOIN_MESH,
7666 .doit = nl80211_join_mesh,
7667 .policy = nl80211_policy,
7668 .flags = GENL_ADMIN_PERM,
7669 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7670 NL80211_FLAG_NEED_RTNL,
7671 },
7672 {
7673 .cmd = NL80211_CMD_LEAVE_MESH,
7674 .doit = nl80211_leave_mesh,
7675 .policy = nl80211_policy,
7676 .flags = GENL_ADMIN_PERM,
7677 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7678 NL80211_FLAG_NEED_RTNL,
7679 },
dfb89c56 7680#ifdef CONFIG_PM
ff1b6e69
JB		 7681 {
7682 .cmd = NL80211_CMD_GET_WOWLAN,
7683 .doit = nl80211_get_wowlan,
7684 .policy = nl80211_policy,
7685 /* can be retrieved by unprivileged users */
7686 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7687 NL80211_FLAG_NEED_RTNL,
7688 },
7689 {
7690 .cmd = NL80211_CMD_SET_WOWLAN,
7691 .doit = nl80211_set_wowlan,
7692 .policy = nl80211_policy,
7693 .flags = GENL_ADMIN_PERM,
7694 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7695 NL80211_FLAG_NEED_RTNL,
7696 },
dfb89c56 7697#endif
e5497d76
JB		 7698 {
7699 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7700 .doit = nl80211_set_rekey_data,
7701 .policy = nl80211_policy,
7702 .flags = GENL_ADMIN_PERM,
7703 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7704 NL80211_FLAG_NEED_RTNL,
7705 },
109086ce
AN		 7706 {
7707 .cmd = NL80211_CMD_TDLS_MGMT,
7708 .doit = nl80211_tdls_mgmt,
7709 .policy = nl80211_policy,
7710 .flags = GENL_ADMIN_PERM,
7711 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7712 NL80211_FLAG_NEED_RTNL,
7713 },
7714 {
7715 .cmd = NL80211_CMD_TDLS_OPER,
7716 .doit = nl80211_tdls_oper,
7717 .policy = nl80211_policy,
7718 .flags = GENL_ADMIN_PERM,
7719 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7720 NL80211_FLAG_NEED_RTNL,
7721 },
28946da7
JB		 7722 {
7723 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7724 .doit = nl80211_register_unexpected_frame,
7725 .policy = nl80211_policy,
7726 .flags = GENL_ADMIN_PERM,
7727 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7728 NL80211_FLAG_NEED_RTNL,
7729 },
7f6cf311
JB		 7730 {
7731 .cmd = NL80211_CMD_PROBE_CLIENT,
7732 .doit = nl80211_probe_client,
7733 .policy = nl80211_policy,
7734 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7735 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7736 NL80211_FLAG_NEED_RTNL,
7737 },
5e760230
JB		 7738 {
7739 .cmd = NL80211_CMD_REGISTER_BEACONS,
7740 .doit = nl80211_register_beacons,
7741 .policy = nl80211_policy,
7742 .flags = GENL_ADMIN_PERM,
7743 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7744 NL80211_FLAG_NEED_RTNL,
7745 },
1d9d9213
SW		 7746 {
7747 .cmd = NL80211_CMD_SET_NOACK_MAP,
7748 .doit = nl80211_set_noack_map,
7749 .policy = nl80211_policy,
7750 .flags = GENL_ADMIN_PERM,
7751 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7752 NL80211_FLAG_NEED_RTNL,
7753 },
98104fde
JB		 7754 {
7755 .cmd = NL80211_CMD_START_P2P_DEVICE,
7756 .doit = nl80211_start_p2p_device,
7757 .policy = nl80211_policy,
7758 .flags = GENL_ADMIN_PERM,
7759 .internal_flags = NL80211_FLAG_NEED_WDEV |
7760 NL80211_FLAG_NEED_RTNL,
7761 },
7762 {
7763 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7764 .doit = nl80211_stop_p2p_device,
7765 .policy = nl80211_policy,
7766 .flags = GENL_ADMIN_PERM,
7767 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7768 NL80211_FLAG_NEED_RTNL,
7769 },
f4e583c8
AQ		 7770 {
7771 .cmd = NL80211_CMD_SET_MCAST_RATE,
7772 .doit = nl80211_set_mcast_rate,
7773 .policy = nl80211_policy,
7774 .flags = GENL_ADMIN_PERM,
7775 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7776 NL80211_FLAG_NEED_RTNL,
7777 },
55682965 7778};
9588bbd5 7779
6039f6d2
JM		 7780static struct genl_multicast_group nl80211_mlme_mcgrp = {
7781 .name = "mlme",
7782};
55682965
JB		 7783
7784/* multicast groups */
7785static struct genl_multicast_group nl80211_config_mcgrp = {
7786 .name = "config",
7787};
2a519311
JB		 7788static struct genl_multicast_group nl80211_scan_mcgrp = {
7789 .name = "scan",
7790};
73d54c9e
LR		 7791static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7792 .name = "regulatory",
7793};
55682965
JB		 7794
7795/* notification functions */
7796
7797void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7798{
7799 struct sk_buff *msg;
7800
fd2120ca 7801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7802 if (!msg)
7803 return;
7804
7805 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7806 nlmsg_free(msg);
7807 return;
7808 }
7809
463d0183
JB		 7810 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7811 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7812}
7813
362a415d
JB		 7814static int nl80211_add_scan_req(struct sk_buff *msg,
7815 struct cfg80211_registered_device *rdev)
7816{
7817 struct cfg80211_scan_request *req = rdev->scan_req;
7818 struct nlattr *nest;
7819 int i;
7820
667503dd
JB		 7821 ASSERT_RDEV_LOCK(rdev);
7822
362a415d
JB		 7823 if (WARN_ON(!req))
7824 return 0;
7825
7826 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7827 if (!nest)
7828 goto nla_put_failure;
9360ffd1
DM		 7829 for (i = 0; i < req->n_ssids; i++) {
7830 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7831 goto nla_put_failure;
7832 }
362a415d
JB		 7833 nla_nest_end(msg, nest);
7834
7835 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7836 if (!nest)
7837 goto nla_put_failure;
9360ffd1
DM		 7838 for (i = 0; i < req->n_channels; i++) {
7839 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7840 goto nla_put_failure;
7841 }
362a415d
JB		 7842 nla_nest_end(msg, nest);
7843
9360ffd1
DM		 7844 if (req->ie &&
7845 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7846 goto nla_put_failure;
362a415d 7847
ed473771
SL		 7848 if (req->flags)
7849 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7850
362a415d
JB		 7851 return 0;
7852 nla_put_failure:
7853 return -ENOBUFS;
7854}
7855
a538e2d5
JB		 7856static int nl80211_send_scan_msg(struct sk_buff *msg,
7857 struct cfg80211_registered_device *rdev,
fd014284 7858 struct wireless_dev *wdev,
15e47304 7859 u32 portid, u32 seq, int flags,
a538e2d5 7860 u32 cmd)
2a519311
JB		 7861{
7862 void *hdr;
7863
15e47304 7864 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 7865 if (!hdr)
7866 return -1;
7867
9360ffd1 7868 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 7869 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7870 wdev->netdev->ifindex)) ||
7871 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 7872 goto nla_put_failure;
2a519311 7873
362a415d
JB		 7874 /* ignore errors and send incomplete event anyway */
7875 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7876
7877 return genlmsg_end(msg, hdr);
7878
7879 nla_put_failure:
7880 genlmsg_cancel(msg, hdr);
7881 return -EMSGSIZE;
7882}
7883
807f8a8c
LC		 7884static int
7885nl80211_send_sched_scan_msg(struct sk_buff *msg,
7886 struct cfg80211_registered_device *rdev,
7887 struct net_device *netdev,
15e47304 7888 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 7889{
7890 void *hdr;
7891
15e47304 7892 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 7893 if (!hdr)
7894 return -1;
7895
9360ffd1
DM		 7896 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7897 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7898 goto nla_put_failure;
807f8a8c
LC		 7899
7900 return genlmsg_end(msg, hdr);
7901
7902 nla_put_failure:
7903 genlmsg_cancel(msg, hdr);
7904 return -EMSGSIZE;
7905}
7906
a538e2d5 7907void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 7908 struct wireless_dev *wdev)
a538e2d5
JB		 7909{
7910 struct sk_buff *msg;
7911
58050fce 7912 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 7913 if (!msg)
7914 return;
7915
fd014284 7916 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 7917 NL80211_CMD_TRIGGER_SCAN) < 0) {
7918 nlmsg_free(msg);
7919 return;
7920 }
7921
463d0183
JB		 7922 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7923 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7924}
7925
2a519311 7926void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 7927 struct wireless_dev *wdev)
2a519311
JB		 7928{
7929 struct sk_buff *msg;
7930
fd2120ca 7931 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7932 if (!msg)
7933 return;
7934
fd014284 7935 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7936 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7937 nlmsg_free(msg);
7938 return;
7939 }
7940
463d0183
JB		 7941 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7942 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7943}
7944
7945void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 7946 struct wireless_dev *wdev)
2a519311
JB		 7947{
7948 struct sk_buff *msg;
7949
fd2120ca 7950 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7951 if (!msg)
7952 return;
7953
fd014284 7954 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7955 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7956 nlmsg_free(msg);
7957 return;
7958 }
7959
463d0183
JB		 7960 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7961 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7962}
7963
807f8a8c
LC		 7964void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7965 struct net_device *netdev)
7966{
7967 struct sk_buff *msg;
7968
7969 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7970 if (!msg)
7971 return;
7972
7973 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7974 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7975 nlmsg_free(msg);
7976 return;
7977 }
7978
7979 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7980 nl80211_scan_mcgrp.id, GFP_KERNEL);
7981}
7982
7983void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7984 struct net_device *netdev, u32 cmd)
7985{
7986 struct sk_buff *msg;
7987
58050fce 7988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 7989 if (!msg)
7990 return;
7991
7992 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7993 nlmsg_free(msg);
7994 return;
7995 }
7996
7997 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7998 nl80211_scan_mcgrp.id, GFP_KERNEL);
7999}
8000
73d54c9e
LR		 8001/*
8002 * This can happen on global regulatory changes or device specific settings
8003 * based on custom world regulatory domains.
8004 */
8005void nl80211_send_reg_change_event(struct regulatory_request *request)
8006{
8007 struct sk_buff *msg;
8008 void *hdr;
8009
fd2120ca 8010 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 8011 if (!msg)
8012 return;
8013
8014 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8015 if (!hdr) {
8016 nlmsg_free(msg);
8017 return;
8018 }
8019
8020 /* Userspace can always count this one always being set */
9360ffd1
DM		 8021 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8022 goto nla_put_failure;
8023
8024 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8025 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8026 NL80211_REGDOM_TYPE_WORLD))
8027 goto nla_put_failure;
8028 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8029 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8030 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8031 goto nla_put_failure;
8032 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8033 request->intersect) {
8034 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8035 NL80211_REGDOM_TYPE_INTERSECTION))
8036 goto nla_put_failure;
8037 } else {
8038 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8039 NL80211_REGDOM_TYPE_COUNTRY) ||
8040 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8041 request->alpha2))
8042 goto nla_put_failure;
8043 }
8044
8045 if (wiphy_idx_valid(request->wiphy_idx) &&
8046 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8047 goto nla_put_failure;
73d54c9e 8048
3b7b72ee 8049 genlmsg_end(msg, hdr);
73d54c9e 8050
bc43b28c 8051 rcu_read_lock();
463d0183 8052 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 8053 GFP_ATOMIC);
8054 rcu_read_unlock();
73d54c9e
LR		 8055
8056 return;
8057
8058nla_put_failure:
8059 genlmsg_cancel(msg, hdr);
8060 nlmsg_free(msg);
8061}
8062
6039f6d2
JM		 8063static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8064 struct net_device *netdev,
8065 const u8 *buf, size_t len,
e6d6e342 8066 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 8067{
8068 struct sk_buff *msg;
8069 void *hdr;
8070
e6d6e342 8071 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 8072 if (!msg)
8073 return;
8074
8075 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8076 if (!hdr) {
8077 nlmsg_free(msg);
8078 return;
8079 }
8080
9360ffd1
DM		 8081 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8082 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8083 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8084 goto nla_put_failure;
6039f6d2 8085
3b7b72ee 8086 genlmsg_end(msg, hdr);
6039f6d2 8087
463d0183
JB		 8088 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8089 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 8090 return;
8091
8092 nla_put_failure:
8093 genlmsg_cancel(msg, hdr);
8094 nlmsg_free(msg);
8095}
8096
8097void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8098 struct net_device *netdev, const u8 *buf,
8099 size_t len, gfp_t gfp)
6039f6d2
JM		 8100{
8101 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8102 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 8103}
8104
8105void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8106 struct net_device *netdev, const u8 *buf,
e6d6e342 8107 size_t len, gfp_t gfp)
6039f6d2 8108{
e6d6e342
JB		 8109 nl80211_send_mlme_event(rdev, netdev, buf, len,
8110 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 8111}
8112
53b46b84 8113void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8114 struct net_device *netdev, const u8 *buf,
8115 size_t len, gfp_t gfp)
6039f6d2
JM		 8116{
8117 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8118 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 8119}
8120
53b46b84
JM		 8121void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8122 struct net_device *netdev, const u8 *buf,
e6d6e342 8123 size_t len, gfp_t gfp)
6039f6d2
JM		 8124{
8125 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8126 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 8127}
8128
cf4e594e
JM		 8129void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8130 struct net_device *netdev, const u8 *buf,
8131 size_t len, gfp_t gfp)
8132{
8133 nl80211_send_mlme_event(rdev, netdev, buf, len,
8134 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8135}
8136
8137void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8138 struct net_device *netdev, const u8 *buf,
8139 size_t len, gfp_t gfp)
8140{
8141 nl80211_send_mlme_event(rdev, netdev, buf, len,
8142 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8143}
8144
1b06bb40
LR		 8145static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8146 struct net_device *netdev, int cmd,
e6d6e342 8147 const u8 *addr, gfp_t gfp)
1965c853
JM		 8148{
8149 struct sk_buff *msg;
8150 void *hdr;
8151
e6d6e342 8152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 8153 if (!msg)
8154 return;
8155
8156 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8157 if (!hdr) {
8158 nlmsg_free(msg);
8159 return;
8160 }
8161
9360ffd1
DM		 8162 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8163 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8164 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8165 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8166 goto nla_put_failure;
1965c853 8167
3b7b72ee 8168 genlmsg_end(msg, hdr);
1965c853 8169
463d0183
JB		 8170 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8171 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8172 return;
8173
8174 nla_put_failure:
8175 genlmsg_cancel(msg, hdr);
8176 nlmsg_free(msg);
8177}
8178
8179void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8180 struct net_device *netdev, const u8 *addr,
8181 gfp_t gfp)
1965c853
JM		 8182{
8183 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8184 addr, gfp);
1965c853
JM		 8185}
8186
8187void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8188 struct net_device *netdev, const u8 *addr,
8189 gfp_t gfp)
1965c853 8190{
e6d6e342
JB		 8191 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8192 addr, gfp);
1965c853
JM		 8193}
8194
b23aa676
SO		 8195void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8196 struct net_device *netdev, const u8 *bssid,
8197 const u8 *req_ie, size_t req_ie_len,
8198 const u8 *resp_ie, size_t resp_ie_len,
8199 u16 status, gfp_t gfp)
8200{
8201 struct sk_buff *msg;
8202 void *hdr;
8203
58050fce 8204 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8205 if (!msg)
8206 return;
8207
8208 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8209 if (!hdr) {
8210 nlmsg_free(msg);
8211 return;
8212 }
8213
9360ffd1
DM		 8214 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8215 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8216 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8217 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8218 (req_ie &&
8219 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8220 (resp_ie &&
8221 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8222 goto nla_put_failure;
b23aa676 8223
3b7b72ee 8224 genlmsg_end(msg, hdr);
b23aa676 8225
463d0183
JB		 8226 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8227 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8228 return;
8229
8230 nla_put_failure:
8231 genlmsg_cancel(msg, hdr);
8232 nlmsg_free(msg);
8233
8234}
8235
8236void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8237 struct net_device *netdev, const u8 *bssid,
8238 const u8 *req_ie, size_t req_ie_len,
8239 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8240{
8241 struct sk_buff *msg;
8242 void *hdr;
8243
58050fce 8244 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8245 if (!msg)
8246 return;
8247
8248 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8249 if (!hdr) {
8250 nlmsg_free(msg);
8251 return;
8252 }
8253
9360ffd1
DM		 8254 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8255 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8256 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8257 (req_ie &&
8258 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8259 (resp_ie &&
8260 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8261 goto nla_put_failure;
b23aa676 8262
3b7b72ee 8263 genlmsg_end(msg, hdr);
b23aa676 8264
463d0183
JB		 8265 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8266 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8267 return;
8268
8269 nla_put_failure:
8270 genlmsg_cancel(msg, hdr);
8271 nlmsg_free(msg);
8272
8273}
8274
8275void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8276 struct net_device *netdev, u16 reason,
667503dd 8277 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8278{
8279 struct sk_buff *msg;
8280 void *hdr;
8281
58050fce 8282 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8283 if (!msg)
8284 return;
8285
8286 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8287 if (!hdr) {
8288 nlmsg_free(msg);
8289 return;
8290 }
8291
9360ffd1
DM		 8292 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8293 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8294 (from_ap && reason &&
8295 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8296 (from_ap &&
8297 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8298 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8299 goto nla_put_failure;
b23aa676 8300
3b7b72ee 8301 genlmsg_end(msg, hdr);
b23aa676 8302
463d0183
JB		 8303 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8304 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8305 return;
8306
8307 nla_put_failure:
8308 genlmsg_cancel(msg, hdr);
8309 nlmsg_free(msg);
8310
8311}
8312
04a773ad
JB		 8313void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8314 struct net_device *netdev, const u8 *bssid,
8315 gfp_t gfp)
8316{
8317 struct sk_buff *msg;
8318 void *hdr;
8319
fd2120ca 8320 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 8321 if (!msg)
8322 return;
8323
8324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8325 if (!hdr) {
8326 nlmsg_free(msg);
8327 return;
8328 }
8329
9360ffd1
DM		 8330 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8331 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8332 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8333 goto nla_put_failure;
04a773ad 8334
3b7b72ee 8335 genlmsg_end(msg, hdr);
04a773ad 8336
463d0183
JB		 8337 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8338 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 8339 return;
8340
8341 nla_put_failure:
8342 genlmsg_cancel(msg, hdr);
8343 nlmsg_free(msg);
8344}
8345
c93b5e71
JC		 8346void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8347 struct net_device *netdev,
8348 const u8 *macaddr, const u8* ie, u8 ie_len,
8349 gfp_t gfp)
8350{
8351 struct sk_buff *msg;
8352 void *hdr;
8353
8354 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8355 if (!msg)
8356 return;
8357
8358 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8359 if (!hdr) {
8360 nlmsg_free(msg);
8361 return;
8362 }
8363
9360ffd1
DM		 8364 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8365 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8366 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8367 (ie_len && ie &&
8368 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8369 goto nla_put_failure;
c93b5e71 8370
3b7b72ee 8371 genlmsg_end(msg, hdr);
c93b5e71
JC		 8372
8373 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8374 nl80211_mlme_mcgrp.id, gfp);
8375 return;
8376
8377 nla_put_failure:
8378 genlmsg_cancel(msg, hdr);
8379 nlmsg_free(msg);
8380}
8381
a3b8b056
JM		 8382void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8383 struct net_device *netdev, const u8 *addr,
8384 enum nl80211_key_type key_type, int key_id,
e6d6e342 8385 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 8386{
8387 struct sk_buff *msg;
8388 void *hdr;
8389
e6d6e342 8390 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 8391 if (!msg)
8392 return;
8393
8394 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8395 if (!hdr) {
8396 nlmsg_free(msg);
8397 return;
8398 }
8399
9360ffd1
DM		 8400 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8401 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8402 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8403 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8404 (key_id != -1 &&
8405 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8406 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8407 goto nla_put_failure;
a3b8b056 8408
3b7b72ee 8409 genlmsg_end(msg, hdr);
a3b8b056 8410
463d0183
JB		 8411 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8412 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 8413 return;
8414
8415 nla_put_failure:
8416 genlmsg_cancel(msg, hdr);
8417 nlmsg_free(msg);
8418}
8419
6bad8766
LR		 8420void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8421 struct ieee80211_channel *channel_before,
8422 struct ieee80211_channel *channel_after)
8423{
8424 struct sk_buff *msg;
8425 void *hdr;
8426 struct nlattr *nl_freq;
8427
fd2120ca 8428 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 8429 if (!msg)
8430 return;
8431
8432 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8433 if (!hdr) {
8434 nlmsg_free(msg);
8435 return;
8436 }
8437
8438 /*
8439 * Since we are applying the beacon hint to a wiphy we know its
8440 * wiphy_idx is valid
8441 */
9360ffd1
DM		 8442 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8443 goto nla_put_failure;
6bad8766
LR		 8444
8445 /* Before */
8446 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8447 if (!nl_freq)
8448 goto nla_put_failure;
8449 if (nl80211_msg_put_channel(msg, channel_before))
8450 goto nla_put_failure;
8451 nla_nest_end(msg, nl_freq);
8452
8453 /* After */
8454 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8455 if (!nl_freq)
8456 goto nla_put_failure;
8457 if (nl80211_msg_put_channel(msg, channel_after))
8458 goto nla_put_failure;
8459 nla_nest_end(msg, nl_freq);
8460
3b7b72ee 8461 genlmsg_end(msg, hdr);
6bad8766 8462
463d0183
JB		 8463 rcu_read_lock();
8464 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8465 GFP_ATOMIC);
8466 rcu_read_unlock();
6bad8766
LR		 8467
8468 return;
8469
8470nla_put_failure:
8471 genlmsg_cancel(msg, hdr);
8472 nlmsg_free(msg);
8473}
8474
9588bbd5
JM		 8475static void nl80211_send_remain_on_chan_event(
8476 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 8477 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8478 struct ieee80211_channel *chan,
9588bbd5
JM		 8479 unsigned int duration, gfp_t gfp)
8480{
8481 struct sk_buff *msg;
8482 void *hdr;
8483
8484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8485 if (!msg)
8486 return;
8487
8488 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8489 if (!hdr) {
8490 nlmsg_free(msg);
8491 return;
8492 }
8493
9360ffd1 8494 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8495 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8496 wdev->netdev->ifindex)) ||
00f53350 8497 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 8498 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 8499 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
8500 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 8501 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8502 goto nla_put_failure;
9588bbd5 8503
9360ffd1
DM		 8504 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8505 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8506 goto nla_put_failure;
9588bbd5 8507
3b7b72ee 8508 genlmsg_end(msg, hdr);
9588bbd5
JM		 8509
8510 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8511 nl80211_mlme_mcgrp.id, gfp);
8512 return;
8513
8514 nla_put_failure:
8515 genlmsg_cancel(msg, hdr);
8516 nlmsg_free(msg);
8517}
8518
8519void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 8520 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8521 struct ieee80211_channel *chan,
9588bbd5
JM		 8522 unsigned int duration, gfp_t gfp)
8523{
8524 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 8525 rdev, wdev, cookie, chan,
42d97a59 8526 duration, gfp);
9588bbd5
JM		 8527}
8528
8529void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 8530 struct cfg80211_registered_device *rdev,
8531 struct wireless_dev *wdev,
42d97a59 8532 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9588bbd5
JM		 8533{
8534 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 8535 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5
JM		 8536}
8537
98b62183
JB		 8538void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8539 struct net_device *dev, const u8 *mac_addr,
8540 struct station_info *sinfo, gfp_t gfp)
8541{
8542 struct sk_buff *msg;
8543
58050fce 8544 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 8545 if (!msg)
8546 return;
8547
66266b3a
JL		 8548 if (nl80211_send_station(msg, 0, 0, 0,
8549 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8550 nlmsg_free(msg);
8551 return;
8552 }
8553
8554 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8555 nl80211_mlme_mcgrp.id, gfp);
8556}
8557
ec15e68b
JM		 8558void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8559 struct net_device *dev, const u8 *mac_addr,
8560 gfp_t gfp)
8561{
8562 struct sk_buff *msg;
8563 void *hdr;
8564
58050fce 8565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 8566 if (!msg)
8567 return;
8568
8569 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8570 if (!hdr) {
8571 nlmsg_free(msg);
8572 return;
8573 }
8574
9360ffd1
DM		 8575 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8576 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8577 goto nla_put_failure;
ec15e68b 8578
3b7b72ee 8579 genlmsg_end(msg, hdr);
ec15e68b
JM		 8580
8581 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8582 nl80211_mlme_mcgrp.id, gfp);
8583 return;
8584
8585 nla_put_failure:
8586 genlmsg_cancel(msg, hdr);
8587 nlmsg_free(msg);
8588}
8589
ed44a951
PP		 8590void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8591 struct net_device *dev, const u8 *mac_addr,
8592 enum nl80211_connect_failed_reason reason,
8593 gfp_t gfp)
8594{
8595 struct sk_buff *msg;
8596 void *hdr;
8597
8598 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8599 if (!msg)
8600 return;
8601
8602 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8603 if (!hdr) {
8604 nlmsg_free(msg);
8605 return;
8606 }
8607
8608 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8609 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8610 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8611 goto nla_put_failure;
8612
8613 genlmsg_end(msg, hdr);
8614
8615 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8616 nl80211_mlme_mcgrp.id, gfp);
8617 return;
8618
8619 nla_put_failure:
8620 genlmsg_cancel(msg, hdr);
8621 nlmsg_free(msg);
8622}
8623
b92ab5d8
JB		 8624static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8625 const u8 *addr, gfp_t gfp)
28946da7
JB		 8626{
8627 struct wireless_dev *wdev = dev->ieee80211_ptr;
8628 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8629 struct sk_buff *msg;
8630 void *hdr;
8631 int err;
15e47304 8632 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 8633
15e47304 8634 if (!nlportid)
28946da7
JB		 8635 return false;
8636
8637 msg = nlmsg_new(100, gfp);
8638 if (!msg)
8639 return true;
8640
b92ab5d8 8641 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8642 if (!hdr) {
8643 nlmsg_free(msg);
8644 return true;
8645 }
8646
9360ffd1
DM		 8647 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8648 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8649 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8650 goto nla_put_failure;
28946da7
JB		 8651
8652 err = genlmsg_end(msg, hdr);
8653 if (err < 0) {
8654 nlmsg_free(msg);
8655 return true;
8656 }
8657
15e47304 8658 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 8659 return true;
8660
8661 nla_put_failure:
8662 genlmsg_cancel(msg, hdr);
8663 nlmsg_free(msg);
8664 return true;
8665}
8666
b92ab5d8
JB		 8667bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8668{
8669 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8670 addr, gfp);
8671}
8672
8673bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8674 const u8 *addr, gfp_t gfp)
8675{
8676 return __nl80211_unexpected_frame(dev,
8677 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8678 addr, gfp);
8679}
8680
2e161f78 8681int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 8682 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 8683 int freq, int sig_dbm,
8684 const u8 *buf, size_t len, gfp_t gfp)
026331c4 8685{
71bbc994 8686 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8687 struct sk_buff *msg;
8688 void *hdr;
026331c4
JM		 8689
8690 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8691 if (!msg)
8692 return -ENOMEM;
8693
2e161f78 8694 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8695 if (!hdr) {
8696 nlmsg_free(msg);
8697 return -ENOMEM;
8698 }
8699
9360ffd1 8700 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8701 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8702 netdev->ifindex)) ||
9360ffd1
DM		 8703 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8704 (sig_dbm &&
8705 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8706 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8707 goto nla_put_failure;
026331c4 8708
3b7b72ee 8709 genlmsg_end(msg, hdr);
026331c4 8710
15e47304 8711 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 8712
8713 nla_put_failure:
8714 genlmsg_cancel(msg, hdr);
8715 nlmsg_free(msg);
8716 return -ENOBUFS;
8717}
8718
2e161f78 8719void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 8720 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 8721 const u8 *buf, size_t len, bool ack,
8722 gfp_t gfp)
026331c4 8723{
71bbc994 8724 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8725 struct sk_buff *msg;
8726 void *hdr;
8727
8728 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8729 if (!msg)
8730 return;
8731
2e161f78 8732 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8733 if (!hdr) {
8734 nlmsg_free(msg);
8735 return;
8736 }
8737
9360ffd1 8738 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8739 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8740 netdev->ifindex)) ||
9360ffd1
DM		 8741 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8742 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8743 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8744 goto nla_put_failure;
026331c4 8745
3b7b72ee 8746 genlmsg_end(msg, hdr);
026331c4
JM		 8747
8748 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8749 return;
8750
8751 nla_put_failure:
8752 genlmsg_cancel(msg, hdr);
8753 nlmsg_free(msg);
8754}
8755
d6dc1a38
JO		 8756void
8757nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8758 struct net_device *netdev,
8759 enum nl80211_cqm_rssi_threshold_event rssi_event,
8760 gfp_t gfp)
8761{
8762 struct sk_buff *msg;
8763 struct nlattr *pinfoattr;
8764 void *hdr;
8765
58050fce 8766 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 8767 if (!msg)
8768 return;
8769
8770 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8771 if (!hdr) {
8772 nlmsg_free(msg);
8773 return;
8774 }
8775
9360ffd1
DM		 8776 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8777 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8778 goto nla_put_failure;
d6dc1a38
JO		 8779
8780 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8781 if (!pinfoattr)
8782 goto nla_put_failure;
8783
9360ffd1
DM		 8784 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8785 rssi_event))
8786 goto nla_put_failure;
d6dc1a38
JO		 8787
8788 nla_nest_end(msg, pinfoattr);
8789
3b7b72ee 8790 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8791
8792 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8793 nl80211_mlme_mcgrp.id, gfp);
8794 return;
8795
8796 nla_put_failure:
8797 genlmsg_cancel(msg, hdr);
8798 nlmsg_free(msg);
8799}
8800
e5497d76
JB		 8801void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8802 struct net_device *netdev, const u8 *bssid,
8803 const u8 *replay_ctr, gfp_t gfp)
8804{
8805 struct sk_buff *msg;
8806 struct nlattr *rekey_attr;
8807 void *hdr;
8808
58050fce 8809 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 8810 if (!msg)
8811 return;
8812
8813 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8814 if (!hdr) {
8815 nlmsg_free(msg);
8816 return;
8817 }
8818
9360ffd1
DM		 8819 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8820 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8821 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8822 goto nla_put_failure;
e5497d76
JB		 8823
8824 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8825 if (!rekey_attr)
8826 goto nla_put_failure;
8827
9360ffd1
DM		 8828 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8829 NL80211_REPLAY_CTR_LEN, replay_ctr))
8830 goto nla_put_failure;
e5497d76
JB		 8831
8832 nla_nest_end(msg, rekey_attr);
8833
3b7b72ee 8834 genlmsg_end(msg, hdr);
e5497d76
JB		 8835
8836 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8837 nl80211_mlme_mcgrp.id, gfp);
8838 return;
8839
8840 nla_put_failure:
8841 genlmsg_cancel(msg, hdr);
8842 nlmsg_free(msg);
8843}
8844
c9df56b4
JM		 8845void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8846 struct net_device *netdev, int index,
8847 const u8 *bssid, bool preauth, gfp_t gfp)
8848{
8849 struct sk_buff *msg;
8850 struct nlattr *attr;
8851 void *hdr;
8852
58050fce 8853 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 8854 if (!msg)
8855 return;
8856
8857 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8858 if (!hdr) {
8859 nlmsg_free(msg);
8860 return;
8861 }
8862
9360ffd1
DM		 8863 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8864 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8865 goto nla_put_failure;
c9df56b4
JM		 8866
8867 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8868 if (!attr)
8869 goto nla_put_failure;
8870
9360ffd1
DM		 8871 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8872 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8873 (preauth &&
8874 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8875 goto nla_put_failure;
c9df56b4
JM		 8876
8877 nla_nest_end(msg, attr);
8878
3b7b72ee 8879 genlmsg_end(msg, hdr);
c9df56b4
JM		 8880
8881 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8882 nl80211_mlme_mcgrp.id, gfp);
8883 return;
8884
8885 nla_put_failure:
8886 genlmsg_cancel(msg, hdr);
8887 nlmsg_free(msg);
8888}
8889
5314526b 8890void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
683b6d3b
JB		 8891 struct net_device *netdev,
8892 struct cfg80211_chan_def *chandef, gfp_t gfp)
5314526b
TP		 8893{
8894 struct sk_buff *msg;
8895 void *hdr;
8896
58050fce 8897 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 8898 if (!msg)
8899 return;
8900
8901 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8902 if (!hdr) {
8903 nlmsg_free(msg);
8904 return;
8905 }
8906
683b6d3b
JB		 8907 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8908 goto nla_put_failure;
8909
8910 if (nl80211_send_chandef(msg, chandef))
7eab0f64 8911 goto nla_put_failure;
5314526b
TP		 8912
8913 genlmsg_end(msg, hdr);
8914
8915 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8916 nl80211_mlme_mcgrp.id, gfp);
8917 return;
8918
8919 nla_put_failure:
8920 genlmsg_cancel(msg, hdr);
8921 nlmsg_free(msg);
8922}
8923
84f10708
TP		 8924void
8925nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8926 struct net_device *netdev, const u8 *peer,
8927 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8928{
8929 struct sk_buff *msg;
8930 struct nlattr *pinfoattr;
8931 void *hdr;
8932
8933 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8934 if (!msg)
8935 return;
8936
8937 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8938 if (!hdr) {
8939 nlmsg_free(msg);
8940 return;
8941 }
8942
8943 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8944 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8945 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8946 goto nla_put_failure;
8947
8948 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8949 if (!pinfoattr)
8950 goto nla_put_failure;
8951
8952 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8953 goto nla_put_failure;
8954
8955 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8956 goto nla_put_failure;
8957
8958 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8959 goto nla_put_failure;
8960
8961 nla_nest_end(msg, pinfoattr);
8962
8963 genlmsg_end(msg, hdr);
8964
8965 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8966 nl80211_mlme_mcgrp.id, gfp);
8967 return;
8968
8969 nla_put_failure:
8970 genlmsg_cancel(msg, hdr);
8971 nlmsg_free(msg);
8972}
8973
c063dbf5
JB		 8974void
8975nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8976 struct net_device *netdev, const u8 *peer,
8977 u32 num_packets, gfp_t gfp)
8978{
8979 struct sk_buff *msg;
8980 struct nlattr *pinfoattr;
8981 void *hdr;
8982
58050fce 8983 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 8984 if (!msg)
8985 return;
8986
8987 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8988 if (!hdr) {
8989 nlmsg_free(msg);
8990 return;
8991 }
8992
9360ffd1
DM		 8993 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8994 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8995 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8996 goto nla_put_failure;
c063dbf5
JB		 8997
8998 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8999 if (!pinfoattr)
9000 goto nla_put_failure;
9001
9360ffd1
DM		 9002 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9003 goto nla_put_failure;
c063dbf5
JB		 9004
9005 nla_nest_end(msg, pinfoattr);
9006
3b7b72ee 9007 genlmsg_end(msg, hdr);
c063dbf5
JB		 9008
9009 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9010 nl80211_mlme_mcgrp.id, gfp);
9011 return;
9012
9013 nla_put_failure:
9014 genlmsg_cancel(msg, hdr);
9015 nlmsg_free(msg);
9016}
9017
7f6cf311
JB		 9018void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9019 u64 cookie, bool acked, gfp_t gfp)
9020{
9021 struct wireless_dev *wdev = dev->ieee80211_ptr;
9022 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9023 struct sk_buff *msg;
9024 void *hdr;
9025 int err;
9026
4ee3e063
BL		 9027 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9028
58050fce 9029 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 9030
7f6cf311
JB		 9031 if (!msg)
9032 return;
9033
9034 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9035 if (!hdr) {
9036 nlmsg_free(msg);
9037 return;
9038 }
9039
9360ffd1
DM		 9040 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9041 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9042 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9043 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9044 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9045 goto nla_put_failure;
7f6cf311
JB		 9046
9047 err = genlmsg_end(msg, hdr);
9048 if (err < 0) {
9049 nlmsg_free(msg);
9050 return;
9051 }
9052
9053 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9054 nl80211_mlme_mcgrp.id, gfp);
9055 return;
9056
9057 nla_put_failure:
9058 genlmsg_cancel(msg, hdr);
9059 nlmsg_free(msg);
9060}
9061EXPORT_SYMBOL(cfg80211_probe_status);
9062
5e760230
JB		 9063void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9064 const u8 *frame, size_t len,
37c73b5f 9065 int freq, int sig_dbm)
5e760230
JB		 9066{
9067 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9068 struct sk_buff *msg;
9069 void *hdr;
37c73b5f 9070 struct cfg80211_beacon_registration *reg;
5e760230 9071
4ee3e063
BL		 9072 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9073
37c73b5f
BG		 9074 spin_lock_bh(&rdev->beacon_registrations_lock);
9075 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9076 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9077 if (!msg) {
9078 spin_unlock_bh(&rdev->beacon_registrations_lock);
9079 return;
9080 }
5e760230 9081
37c73b5f
BG		 9082 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9083 if (!hdr)
9084 goto nla_put_failure;
5e760230 9085
37c73b5f
BG		 9086 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9087 (freq &&
9088 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9089 (sig_dbm &&
9090 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9091 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9092 goto nla_put_failure;
5e760230 9093
37c73b5f 9094 genlmsg_end(msg, hdr);
5e760230 9095
37c73b5f
BG		 9096 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9097 }
9098 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9099 return;
9100
9101 nla_put_failure:
37c73b5f
BG		 9102 spin_unlock_bh(&rdev->beacon_registrations_lock);
9103 if (hdr)
9104 genlmsg_cancel(msg, hdr);
5e760230
JB		 9105 nlmsg_free(msg);
9106}
9107EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9108
3475b094
JM		 9109void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9110 enum nl80211_tdls_operation oper,
9111 u16 reason_code, gfp_t gfp)
9112{
9113 struct wireless_dev *wdev = dev->ieee80211_ptr;
9114 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9115 struct sk_buff *msg;
9116 void *hdr;
9117 int err;
9118
9119 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9120 reason_code);
9121
9122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9123 if (!msg)
9124 return;
9125
9126 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9127 if (!hdr) {
9128 nlmsg_free(msg);
9129 return;
9130 }
9131
9132 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9133 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9134 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9135 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9136 (reason_code > 0 &&
9137 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9138 goto nla_put_failure;
9139
9140 err = genlmsg_end(msg, hdr);
9141 if (err < 0) {
9142 nlmsg_free(msg);
9143 return;
9144 }
9145
9146 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9147 nl80211_mlme_mcgrp.id, gfp);
9148 return;
9149
9150 nla_put_failure:
9151 genlmsg_cancel(msg, hdr);
9152 nlmsg_free(msg);
9153}
9154EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9155
026331c4
JM		 9156static int nl80211_netlink_notify(struct notifier_block * nb,
9157 unsigned long state,
9158 void *_notify)
9159{
9160 struct netlink_notify *notify = _notify;
9161 struct cfg80211_registered_device *rdev;
9162 struct wireless_dev *wdev;
37c73b5f 9163 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 9164
9165 if (state != NETLINK_URELEASE)
9166 return NOTIFY_DONE;
9167
9168 rcu_read_lock();
9169
5e760230 9170 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 9171 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 9172 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 9173
9174 spin_lock_bh(&rdev->beacon_registrations_lock);
9175 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9176 list) {
9177 if (reg->nlportid == notify->portid) {
9178 list_del(&reg->list);
9179 kfree(reg);
9180 break;
9181 }
9182 }
9183 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 9184 }
026331c4
JM		 9185
9186 rcu_read_unlock();
9187
9188 return NOTIFY_DONE;
9189}
9190
9191static struct notifier_block nl80211_netlink_notifier = {
9192 .notifier_call = nl80211_netlink_notify,
9193};
9194
55682965
JB		 9195/* initialisation/exit functions */
9196
9197int nl80211_init(void)
9198{
0d63cbb5 9199 int err;
55682965 9200
0d63cbb5
MM		 9201 err = genl_register_family_with_ops(&nl80211_fam,
9202 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 9203 if (err)
9204 return err;
9205
55682965
JB		 9206 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9207 if (err)
9208 goto err_out;
9209
2a519311
JB		 9210 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9211 if (err)
9212 goto err_out;
9213
73d54c9e
LR		 9214 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9215 if (err)
9216 goto err_out;
9217
6039f6d2
JM		 9218 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9219 if (err)
9220 goto err_out;
9221
aff89a9b
JB		 9222#ifdef CONFIG_NL80211_TESTMODE
9223 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9224 if (err)
9225 goto err_out;
9226#endif
9227
026331c4
JM		 9228 err = netlink_register_notifier(&nl80211_netlink_notifier);
9229 if (err)
9230 goto err_out;
9231
55682965
JB		 9232 return 0;
9233 err_out:
9234 genl_unregister_family(&nl80211_fam);
9235 return err;
9236}
9237
9238void nl80211_exit(void)
9239{
026331c4 9240 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 9241 genl_unregister_family(&nl80211_fam);
9242}
Linux 6.x block layer and io_uring tree(s)