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cfg80211: move some AP code to right file
[mirror_ubuntu-focal-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
e35e4d28 25#include "rdev-ops.h"
55682965 26
5fb628e9
JM		 27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
89a54e48
JB		 49/* returns ERR_PTR values */
50static struct wireless_dev *
51__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 52{
89a54e48
JB		 53 struct cfg80211_registered_device *rdev;
54 struct wireless_dev *result = NULL;
55 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
56 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
57 u64 wdev_id;
58 int wiphy_idx = -1;
59 int ifidx = -1;
55682965 60
89a54e48 61 assert_cfg80211_lock();
55682965 62
89a54e48
JB		 63 if (!have_ifidx && !have_wdev_id)
64 return ERR_PTR(-EINVAL);
55682965 65
89a54e48
JB		 66 if (have_ifidx)
67 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
68 if (have_wdev_id) {
69 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
70 wiphy_idx = wdev_id >> 32;
55682965
JB		 71 }
72
89a54e48
JB		 73 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
74 struct wireless_dev *wdev;
75
76 if (wiphy_net(&rdev->wiphy) != netns)
77 continue;
78
79 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
80 continue;
81
82 mutex_lock(&rdev->devlist_mtx);
83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
86 result = wdev;
87 break;
88 }
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
90 result = wdev;
91 break;
92 }
93 }
94 mutex_unlock(&rdev->devlist_mtx);
95
96 if (result)
97 break;
98 }
99
100 if (result)
101 return result;
102 return ERR_PTR(-ENODEV);
55682965
JB		 103}
104
a9455408 105static struct cfg80211_registered_device *
878d9ec7 106__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 107{
7fee4778
JB		 108 struct cfg80211_registered_device *rdev = NULL, *tmp;
109 struct net_device *netdev;
a9455408
JB		 110
111 assert_cfg80211_lock();
112
878d9ec7 113 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 114 !attrs[NL80211_ATTR_IFINDEX] &&
115 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 116 return ERR_PTR(-EINVAL);
117
878d9ec7 118 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 119 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 120 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 121
89a54e48
JB		 122 if (attrs[NL80211_ATTR_WDEV]) {
123 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
124 struct wireless_dev *wdev;
125 bool found = false;
126
127 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
128 if (tmp) {
129 /* make sure wdev exists */
130 mutex_lock(&tmp->devlist_mtx);
131 list_for_each_entry(wdev, &tmp->wdev_list, list) {
132 if (wdev->identifier != (u32)wdev_id)
133 continue;
134 found = true;
135 break;
136 }
137 mutex_unlock(&tmp->devlist_mtx);
138
139 if (!found)
140 tmp = NULL;
141
142 if (rdev && tmp != rdev)
143 return ERR_PTR(-EINVAL);
144 rdev = tmp;
145 }
146 }
147
878d9ec7
JB		 148 if (attrs[NL80211_ATTR_IFINDEX]) {
149 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 150 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 151 if (netdev) {
152 if (netdev->ieee80211_ptr)
153 tmp = wiphy_to_dev(
154 netdev->ieee80211_ptr->wiphy);
155 else
156 tmp = NULL;
157
158 dev_put(netdev);
159
160 /* not wireless device -- return error */
161 if (!tmp)
162 return ERR_PTR(-EINVAL);
163
164 /* mismatch -- return error */
165 if (rdev && tmp != rdev)
166 return ERR_PTR(-EINVAL);
167
168 rdev = tmp;
a9455408 169 }
a9455408 170 }
a9455408 171
4f7eff10
JB		 172 if (!rdev)
173 return ERR_PTR(-ENODEV);
a9455408 174
4f7eff10
JB		 175 if (netns != wiphy_net(&rdev->wiphy))
176 return ERR_PTR(-ENODEV);
177
178 return rdev;
a9455408
JB		 179}
180
181/*
182 * This function returns a pointer to the driver
183 * that the genl_info item that is passed refers to.
184 * If successful, it returns non-NULL and also locks
185 * the driver's mutex!
186 *
187 * This means that you need to call cfg80211_unlock_rdev()
188 * before being allowed to acquire &cfg80211_mutex!
189 *
190 * This is necessary because we need to lock the global
191 * mutex to get an item off the list safely, and then
192 * we lock the rdev mutex so it doesn't go away under us.
193 *
194 * We don't want to keep cfg80211_mutex locked
195 * for all the time in order to allow requests on
196 * other interfaces to go through at the same time.
197 *
198 * The result of this can be a PTR_ERR and hence must
199 * be checked with IS_ERR() for errors.
200 */
201static struct cfg80211_registered_device *
4f7eff10 202cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408
JB		 203{
204 struct cfg80211_registered_device *rdev;
205
206 mutex_lock(&cfg80211_mutex);
878d9ec7 207 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208
209 /* if it is not an error we grab the lock on
210 * it to assure it won't be going away while
211 * we operate on it */
212 if (!IS_ERR(rdev))
213 mutex_lock(&rdev->mtx);
214
215 mutex_unlock(&cfg80211_mutex);
216
217 return rdev;
218}
219
55682965 220/* policy for the attributes */
b54452b0 221static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 222 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
223 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 224 .len = 20-1 },
31888487 225 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 226
72bdcf34 227 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 228 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 229 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
230 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
232
b9a5f8ca
JM		 233 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
234 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
236 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 237 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 238
239 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
240 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 242
e007b857
EP		 243 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
244 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 245
b9454e83 246 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 247 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
248 .len = WLAN_MAX_KEY_LEN },
249 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
250 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
251 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 252 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 253 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 254
255 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
256 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
257 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
258 .len = IEEE80211_MAX_DATA_LEN },
259 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
260 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 261 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
262 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
263 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
264 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
265 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 266 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 267 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 268 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 269 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 270 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 271 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 272
b2e1b302
LR		 273 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
274 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
275
9f1ba906
JM		 276 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
277 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 279 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
280 .len = NL80211_MAX_SUPP_RATES },
50b12f59 281 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 282
24bdd9f4 283 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 284 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 285
6c739419 286 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 287
288 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
289 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
290 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 291 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
292 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 293
294 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
295 .len = IEEE80211_MAX_SSID_LEN },
296 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
297 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 298 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 299 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 300 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 301 [NL80211_ATTR_STA_FLAGS2] = {
302 .len = sizeof(struct nl80211_sta_flag_update),
303 },
3f77316c 304 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 305 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
306 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 307 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
308 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
309 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 310 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 311 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 312 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
313 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 314 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
315 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 316 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 317 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
318 .len = IEEE80211_MAX_DATA_LEN },
319 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 320 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 321 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 322 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 323 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 324 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
325 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 326 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 327 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
328 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 329 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 330 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 331 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 332 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 333 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 334 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 335 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 336 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 337 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 338 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
339 .len = IEEE80211_MAX_DATA_LEN },
340 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
341 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 342 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 343 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 344 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 345 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
346 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 350 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 351 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
352 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 353 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 354 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
355 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
356 .len = NL80211_HT_CAPABILITY_LEN
357 },
1d9d9213 358 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 359 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 360 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 361 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 362 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 363 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 364 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 365 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 366 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
367 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
55682965
JB		 368};
369
e31b8213 370/* policy for the key attributes */
b54452b0 371static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 372 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 373 [NL80211_KEY_IDX] = { .type = NLA_U8 },
374 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 375 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 376 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
377 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 378 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 379 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
380};
381
382/* policy for the key default flags */
383static const struct nla_policy
384nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
385 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
386 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 387};
388
ff1b6e69
JB		 389/* policy for WoWLAN attributes */
390static const struct nla_policy
391nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
392 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
393 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
394 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
395 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 396 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
397 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
398 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
399 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 400};
401
e5497d76
JB		 402/* policy for GTK rekey offload attributes */
403static const struct nla_policy
404nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
405 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
406 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
407 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
408};
409
a1f1c21c
LC		 410static const struct nla_policy
411nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 412 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 413 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 414 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 415};
416
a043897a
HS		 417/* ifidx get helper */
418static int nl80211_get_ifidx(struct netlink_callback *cb)
419{
420 int res;
421
422 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
423 nl80211_fam.attrbuf, nl80211_fam.maxattr,
424 nl80211_policy);
425 if (res)
426 return res;
427
428 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
429 return -EINVAL;
430
431 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
432 if (!res)
433 return -EINVAL;
434 return res;
435}
436
67748893
JB		 437static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
438 struct netlink_callback *cb,
439 struct cfg80211_registered_device **rdev,
440 struct net_device **dev)
441{
442 int ifidx = cb->args[0];
443 int err;
444
445 if (!ifidx)
446 ifidx = nl80211_get_ifidx(cb);
447 if (ifidx < 0)
448 return ifidx;
449
450 cb->args[0] = ifidx;
451
452 rtnl_lock();
453
454 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
455 if (!*dev) {
456 err = -ENODEV;
457 goto out_rtnl;
458 }
459
460 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 461 if (IS_ERR(*rdev)) {
462 err = PTR_ERR(*rdev);
67748893
JB		 463 goto out_rtnl;
464 }
465
466 return 0;
467 out_rtnl:
468 rtnl_unlock();
469 return err;
470}
471
472static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
473{
474 cfg80211_unlock_rdev(rdev);
475 rtnl_unlock();
476}
477
f4a11bb0
JB		 478/* IE validation */
479static bool is_valid_ie_attr(const struct nlattr *attr)
480{
481 const u8 *pos;
482 int len;
483
484 if (!attr)
485 return true;
486
487 pos = nla_data(attr);
488 len = nla_len(attr);
489
490 while (len) {
491 u8 elemlen;
492
493 if (len < 2)
494 return false;
495 len -= 2;
496
497 elemlen = pos[1];
498 if (elemlen > len)
499 return false;
500
501 len -= elemlen;
502 pos += 2 + elemlen;
503 }
504
505 return true;
506}
507
55682965 508/* message building helper */
15e47304 509static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 510 int flags, u8 cmd)
511{
512 /* since there is no private header just add the generic one */
15e47304 513 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 514}
515
5dab3b8a
LR		 516static int nl80211_msg_put_channel(struct sk_buff *msg,
517 struct ieee80211_channel *chan)
518{
9360ffd1
DM		 519 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
520 chan->center_freq))
521 goto nla_put_failure;
5dab3b8a 522
9360ffd1
DM		 523 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
524 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
525 goto nla_put_failure;
526 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
527 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
528 goto nla_put_failure;
529 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
530 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
531 goto nla_put_failure;
532 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
533 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
534 goto nla_put_failure;
5dab3b8a 535
9360ffd1
DM		 536 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
537 DBM_TO_MBM(chan->max_power)))
538 goto nla_put_failure;
5dab3b8a
LR		 539
540 return 0;
541
542 nla_put_failure:
543 return -ENOBUFS;
544}
545
55682965
JB		 546/* netlink command implementations */
547
b9454e83
JB		 548struct key_parse {
549 struct key_params p;
550 int idx;
e31b8213 551 int type;
b9454e83 552 bool def, defmgmt;
dbd2fd65 553 bool def_uni, def_multi;
b9454e83
JB		 554};
555
556static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
557{
558 struct nlattr *tb[NL80211_KEY_MAX + 1];
559 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
560 nl80211_key_policy);
561 if (err)
562 return err;
563
564 k->def = !!tb[NL80211_KEY_DEFAULT];
565 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
566
dbd2fd65
JB		 567 if (k->def) {
568 k->def_uni = true;
569 k->def_multi = true;
570 }
571 if (k->defmgmt)
572 k->def_multi = true;
573
b9454e83
JB		 574 if (tb[NL80211_KEY_IDX])
575 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
576
577 if (tb[NL80211_KEY_DATA]) {
578 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
579 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
580 }
581
582 if (tb[NL80211_KEY_SEQ]) {
583 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
584 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
585 }
586
587 if (tb[NL80211_KEY_CIPHER])
588 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
589
e31b8213
JB		 590 if (tb[NL80211_KEY_TYPE]) {
591 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
592 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
593 return -EINVAL;
594 }
595
dbd2fd65
JB		 596 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
597 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 598 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
599 tb[NL80211_KEY_DEFAULT_TYPES],
600 nl80211_key_default_policy);
dbd2fd65
JB		 601 if (err)
602 return err;
603
604 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
605 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
606 }
607
b9454e83
JB		 608 return 0;
609}
610
611static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
612{
613 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
614 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
615 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
616 }
617
618 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
619 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
620 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
621 }
622
623 if (info->attrs[NL80211_ATTR_KEY_IDX])
624 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
625
626 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
627 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
628
629 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
630 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
631
dbd2fd65
JB		 632 if (k->def) {
633 k->def_uni = true;
634 k->def_multi = true;
635 }
636 if (k->defmgmt)
637 k->def_multi = true;
638
e31b8213
JB		 639 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
640 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
641 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
642 return -EINVAL;
643 }
644
dbd2fd65
JB		 645 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
646 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
647 int err = nla_parse_nested(
648 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
649 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
650 nl80211_key_default_policy);
651 if (err)
652 return err;
653
654 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
655 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
656 }
657
b9454e83
JB		 658 return 0;
659}
660
661static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
662{
663 int err;
664
665 memset(k, 0, sizeof(*k));
666 k->idx = -1;
e31b8213 667 k->type = -1;
b9454e83
JB		 668
669 if (info->attrs[NL80211_ATTR_KEY])
670 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
671 else
672 err = nl80211_parse_key_old(info, k);
673
674 if (err)
675 return err;
676
677 if (k->def && k->defmgmt)
678 return -EINVAL;
679
dbd2fd65
JB		 680 if (k->defmgmt) {
681 if (k->def_uni || !k->def_multi)
682 return -EINVAL;
683 }
684
b9454e83
JB		 685 if (k->idx != -1) {
686 if (k->defmgmt) {
687 if (k->idx < 4 || k->idx > 5)
688 return -EINVAL;
689 } else if (k->def) {
690 if (k->idx < 0 || k->idx > 3)
691 return -EINVAL;
692 } else {
693 if (k->idx < 0 || k->idx > 5)
694 return -EINVAL;
695 }
696 }
697
698 return 0;
699}
700
fffd0934
JB		 701static struct cfg80211_cached_keys *
702nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 703 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 704{
705 struct key_parse parse;
706 struct nlattr *key;
707 struct cfg80211_cached_keys *result;
708 int rem, err, def = 0;
709
710 result = kzalloc(sizeof(*result), GFP_KERNEL);
711 if (!result)
712 return ERR_PTR(-ENOMEM);
713
714 result->def = -1;
715 result->defmgmt = -1;
716
717 nla_for_each_nested(key, keys, rem) {
718 memset(&parse, 0, sizeof(parse));
719 parse.idx = -1;
720
721 err = nl80211_parse_key_new(key, &parse);
722 if (err)
723 goto error;
724 err = -EINVAL;
725 if (!parse.p.key)
726 goto error;
727 if (parse.idx < 0 || parse.idx > 4)
728 goto error;
729 if (parse.def) {
730 if (def)
731 goto error;
732 def = 1;
733 result->def = parse.idx;
dbd2fd65
JB		 734 if (!parse.def_uni || !parse.def_multi)
735 goto error;
fffd0934
JB		 736 } else if (parse.defmgmt)
737 goto error;
738 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 739 parse.idx, false, NULL);
fffd0934
JB		 740 if (err)
741 goto error;
742 result->params[parse.idx].cipher = parse.p.cipher;
743 result->params[parse.idx].key_len = parse.p.key_len;
744 result->params[parse.idx].key = result->data[parse.idx];
745 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 746
747 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
748 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
749 if (no_ht)
750 *no_ht = true;
751 }
fffd0934
JB		 752 }
753
754 return result;
755 error:
756 kfree(result);
757 return ERR_PTR(err);
758}
759
760static int nl80211_key_allowed(struct wireless_dev *wdev)
761{
762 ASSERT_WDEV_LOCK(wdev);
763
fffd0934
JB		 764 switch (wdev->iftype) {
765 case NL80211_IFTYPE_AP:
766 case NL80211_IFTYPE_AP_VLAN:
074ac8df 767 case NL80211_IFTYPE_P2P_GO:
ff973af7 768 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 769 break;
770 case NL80211_IFTYPE_ADHOC:
771 if (!wdev->current_bss)
772 return -ENOLINK;
773 break;
774 case NL80211_IFTYPE_STATION:
074ac8df 775 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 776 if (wdev->sme_state != CFG80211_SME_CONNECTED)
777 return -ENOLINK;
778 break;
779 default:
780 return -EINVAL;
781 }
782
783 return 0;
784}
785
7527a782
JB		 786static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
787{
788 struct nlattr *nl_modes = nla_nest_start(msg, attr);
789 int i;
790
791 if (!nl_modes)
792 goto nla_put_failure;
793
794 i = 0;
795 while (ifmodes) {
9360ffd1
DM		 796 if ((ifmodes & 1) && nla_put_flag(msg, i))
797 goto nla_put_failure;
7527a782
JB		 798 ifmodes >>= 1;
799 i++;
800 }
801
802 nla_nest_end(msg, nl_modes);
803 return 0;
804
805nla_put_failure:
806 return -ENOBUFS;
807}
808
809static int nl80211_put_iface_combinations(struct wiphy *wiphy,
810 struct sk_buff *msg)
811{
812 struct nlattr *nl_combis;
813 int i, j;
814
815 nl_combis = nla_nest_start(msg,
816 NL80211_ATTR_INTERFACE_COMBINATIONS);
817 if (!nl_combis)
818 goto nla_put_failure;
819
820 for (i = 0; i < wiphy->n_iface_combinations; i++) {
821 const struct ieee80211_iface_combination *c;
822 struct nlattr *nl_combi, *nl_limits;
823
824 c = &wiphy->iface_combinations[i];
825
826 nl_combi = nla_nest_start(msg, i + 1);
827 if (!nl_combi)
828 goto nla_put_failure;
829
830 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
831 if (!nl_limits)
832 goto nla_put_failure;
833
834 for (j = 0; j < c->n_limits; j++) {
835 struct nlattr *nl_limit;
836
837 nl_limit = nla_nest_start(msg, j + 1);
838 if (!nl_limit)
839 goto nla_put_failure;
9360ffd1
DM		 840 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
841 c->limits[j].max))
842 goto nla_put_failure;
7527a782
JB		 843 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
844 c->limits[j].types))
845 goto nla_put_failure;
846 nla_nest_end(msg, nl_limit);
847 }
848
849 nla_nest_end(msg, nl_limits);
850
9360ffd1
DM		 851 if (c->beacon_int_infra_match &&
852 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
853 goto nla_put_failure;
854 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
855 c->num_different_channels) ||
856 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
857 c->max_interfaces))
858 goto nla_put_failure;
7527a782
JB		 859
860 nla_nest_end(msg, nl_combi);
861 }
862
863 nla_nest_end(msg, nl_combis);
864
865 return 0;
866nla_put_failure:
867 return -ENOBUFS;
868}
869
15e47304 870static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
55682965
JB		 871 struct cfg80211_registered_device *dev)
872{
873 void *hdr;
ee688b00
JB		 874 struct nlattr *nl_bands, *nl_band;
875 struct nlattr *nl_freqs, *nl_freq;
876 struct nlattr *nl_rates, *nl_rate;
8fdc621d 877 struct nlattr *nl_cmds;
ee688b00
JB		 878 enum ieee80211_band band;
879 struct ieee80211_channel *chan;
880 struct ieee80211_rate *rate;
881 int i;
2e161f78
JB		 882 const struct ieee80211_txrx_stypes *mgmt_stypes =
883 dev->wiphy.mgmt_stypes;
55682965 884
15e47304 885 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
55682965
JB		 886 if (!hdr)
887 return -1;
888
9360ffd1
DM		 889 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
890 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
891 nla_put_u32(msg, NL80211_ATTR_GENERATION,
892 cfg80211_rdev_list_generation) ||
893 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
894 dev->wiphy.retry_short) ||
895 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
896 dev->wiphy.retry_long) ||
897 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
898 dev->wiphy.frag_threshold) ||
899 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
900 dev->wiphy.rts_threshold) ||
901 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
902 dev->wiphy.coverage_class) ||
903 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
904 dev->wiphy.max_scan_ssids) ||
905 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
906 dev->wiphy.max_sched_scan_ssids) ||
907 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
908 dev->wiphy.max_scan_ie_len) ||
909 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
910 dev->wiphy.max_sched_scan_ie_len) ||
911 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
912 dev->wiphy.max_match_sets))
913 goto nla_put_failure;
914
915 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
916 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
917 goto nla_put_failure;
918 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
919 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
920 goto nla_put_failure;
921 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
922 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
923 goto nla_put_failure;
924 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
925 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
926 goto nla_put_failure;
927 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
928 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
929 goto nla_put_failure;
930 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
931 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
932 goto nla_put_failure;
933
934 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
935 sizeof(u32) * dev->wiphy.n_cipher_suites,
936 dev->wiphy.cipher_suites))
937 goto nla_put_failure;
938
939 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
940 dev->wiphy.max_num_pmkids))
941 goto nla_put_failure;
942
943 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
944 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
945 goto nla_put_failure;
946
947 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
948 dev->wiphy.available_antennas_tx) ||
949 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
950 dev->wiphy.available_antennas_rx))
951 goto nla_put_failure;
952
953 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
954 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
955 dev->wiphy.probe_resp_offload))
956 goto nla_put_failure;
87bbbe22 957
7f531e03
BR		 958 if ((dev->wiphy.available_antennas_tx ||
959 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 960 u32 tx_ant = 0, rx_ant = 0;
961 int res;
e35e4d28 962 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
afe0cbf8 963 if (!res) {
9360ffd1
DM		 964 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
965 tx_ant) ||
966 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
967 rx_ant))
968 goto nla_put_failure;
afe0cbf8
BR		 969 }
970 }
971
7527a782
JB		 972 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
973 dev->wiphy.interface_modes))
f59ac048
LR		 974 goto nla_put_failure;
975
ee688b00
JB		 976 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
977 if (!nl_bands)
978 goto nla_put_failure;
979
980 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
981 if (!dev->wiphy.bands[band])
982 continue;
983
984 nl_band = nla_nest_start(msg, band);
985 if (!nl_band)
986 goto nla_put_failure;
987
d51626df 988 /* add HT info */
9360ffd1
DM		 989 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
990 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
991 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
992 &dev->wiphy.bands[band]->ht_cap.mcs) ||
993 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
994 dev->wiphy.bands[band]->ht_cap.cap) ||
995 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
996 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
997 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
998 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
999 goto nla_put_failure;
d51626df 1000
bf0c111e
MP		 1001 /* add VHT info */
1002 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1003 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1004 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1005 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1006 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1007 dev->wiphy.bands[band]->vht_cap.cap)))
1008 goto nla_put_failure;
1009
ee688b00
JB		 1010 /* add frequencies */
1011 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1012 if (!nl_freqs)
1013 goto nla_put_failure;
1014
1015 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1016 nl_freq = nla_nest_start(msg, i);
1017 if (!nl_freq)
1018 goto nla_put_failure;
1019
1020 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 1021
1022 if (nl80211_msg_put_channel(msg, chan))
1023 goto nla_put_failure;
e2f367f2 1024
ee688b00
JB		 1025 nla_nest_end(msg, nl_freq);
1026 }
1027
1028 nla_nest_end(msg, nl_freqs);
1029
1030 /* add bitrates */
1031 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1032 if (!nl_rates)
1033 goto nla_put_failure;
1034
1035 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1036 nl_rate = nla_nest_start(msg, i);
1037 if (!nl_rate)
1038 goto nla_put_failure;
1039
1040 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 1041 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1042 rate->bitrate))
1043 goto nla_put_failure;
1044 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1045 nla_put_flag(msg,
1046 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1047 goto nla_put_failure;
ee688b00
JB		 1048
1049 nla_nest_end(msg, nl_rate);
1050 }
1051
1052 nla_nest_end(msg, nl_rates);
1053
1054 nla_nest_end(msg, nl_band);
1055 }
1056 nla_nest_end(msg, nl_bands);
1057
8fdc621d
JB		 1058 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1059 if (!nl_cmds)
1060 goto nla_put_failure;
1061
1062 i = 0;
1063#define CMD(op, n) \
1064 do { \
1065 if (dev->ops->op) { \
1066 i++; \
9360ffd1
DM		 1067 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1068 goto nla_put_failure; \
8fdc621d
JB		 1069 } \
1070 } while (0)
1071
1072 CMD(add_virtual_intf, NEW_INTERFACE);
1073 CMD(change_virtual_intf, SET_INTERFACE);
1074 CMD(add_key, NEW_KEY);
8860020e 1075 CMD(start_ap, START_AP);
8fdc621d
JB		 1076 CMD(add_station, NEW_STATION);
1077 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1078 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1079 CMD(change_bss, SET_BSS);
636a5d36
JM		 1080 CMD(auth, AUTHENTICATE);
1081 CMD(assoc, ASSOCIATE);
1082 CMD(deauth, DEAUTHENTICATE);
1083 CMD(disassoc, DISASSOCIATE);
04a773ad 1084 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1085 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1086 CMD(set_pmksa, SET_PMKSA);
1087 CMD(del_pmksa, DEL_PMKSA);
1088 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1089 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1090 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1091 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1092 CMD(mgmt_tx, FRAME);
f7ca38df 1093 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1094 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1095 i++;
9360ffd1
DM		 1096 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1097 goto nla_put_failure;
463d0183 1098 }
e8c9bd5b 1099 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1100 dev->ops->join_mesh) {
aa430da4
JB		 1101 i++;
1102 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1103 goto nla_put_failure;
1104 }
e8347eba 1105 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1106 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1107 CMD(tdls_mgmt, TDLS_MGMT);
1108 CMD(tdls_oper, TDLS_OPER);
1109 }
807f8a8c
LC		 1110 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1111 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1112 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1113 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1114 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1115 i++;
9360ffd1
DM		 1116 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1117 goto nla_put_failure;
5e760230 1118 }
98104fde 1119 CMD(start_p2p_device, START_P2P_DEVICE);
f4e583c8 1120 CMD(set_mcast_rate, SET_MCAST_RATE);
8fdc621d 1121
4745fc09
KV		 1122#ifdef CONFIG_NL80211_TESTMODE
1123 CMD(testmode_cmd, TESTMODE);
1124#endif
1125
8fdc621d 1126#undef CMD
b23aa676 1127
6829c878 1128 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1129 i++;
9360ffd1
DM		 1130 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1131 goto nla_put_failure;
b23aa676
SO		 1132 }
1133
6829c878 1134 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1135 i++;
9360ffd1
DM		 1136 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1137 goto nla_put_failure;
b23aa676
SO		 1138 }
1139
8fdc621d
JB		 1140 nla_nest_end(msg, nl_cmds);
1141
7c4ef712 1142 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1143 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1144 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1145 dev->wiphy.max_remain_on_channel_duration))
1146 goto nla_put_failure;
a293911d 1147
9360ffd1
DM		 1148 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1149 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1150 goto nla_put_failure;
f7ca38df 1151
2e161f78
JB		 1152 if (mgmt_stypes) {
1153 u16 stypes;
1154 struct nlattr *nl_ftypes, *nl_ifs;
1155 enum nl80211_iftype ift;
1156
1157 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1158 if (!nl_ifs)
1159 goto nla_put_failure;
1160
1161 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1162 nl_ftypes = nla_nest_start(msg, ift);
1163 if (!nl_ftypes)
1164 goto nla_put_failure;
1165 i = 0;
1166 stypes = mgmt_stypes[ift].tx;
1167 while (stypes) {
9360ffd1
DM		 1168 if ((stypes & 1) &&
1169 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1170 (i << 4) | IEEE80211_FTYPE_MGMT))
1171 goto nla_put_failure;
2e161f78
JB		 1172 stypes >>= 1;
1173 i++;
1174 }
1175 nla_nest_end(msg, nl_ftypes);
1176 }
1177
74b70a4e
JB		 1178 nla_nest_end(msg, nl_ifs);
1179
2e161f78
JB		 1180 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1181 if (!nl_ifs)
1182 goto nla_put_failure;
1183
1184 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1185 nl_ftypes = nla_nest_start(msg, ift);
1186 if (!nl_ftypes)
1187 goto nla_put_failure;
1188 i = 0;
1189 stypes = mgmt_stypes[ift].rx;
1190 while (stypes) {
9360ffd1
DM		 1191 if ((stypes & 1) &&
1192 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1193 (i << 4) | IEEE80211_FTYPE_MGMT))
1194 goto nla_put_failure;
2e161f78
JB		 1195 stypes >>= 1;
1196 i++;
1197 }
1198 nla_nest_end(msg, nl_ftypes);
1199 }
1200 nla_nest_end(msg, nl_ifs);
1201 }
1202
dfb89c56 1203#ifdef CONFIG_PM
ff1b6e69
JB		 1204 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1205 struct nlattr *nl_wowlan;
1206
1207 nl_wowlan = nla_nest_start(msg,
1208 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1209 if (!nl_wowlan)
1210 goto nla_put_failure;
1211
9360ffd1
DM		 1212 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1213 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1214 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1215 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1216 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1217 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1218 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1219 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1220 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1221 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1222 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1223 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1224 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1225 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1226 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1227 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1228 goto nla_put_failure;
ff1b6e69
JB		 1229 if (dev->wiphy.wowlan.n_patterns) {
1230 struct nl80211_wowlan_pattern_support pat = {
1231 .max_patterns = dev->wiphy.wowlan.n_patterns,
1232 .min_pattern_len =
1233 dev->wiphy.wowlan.pattern_min_len,
1234 .max_pattern_len =
1235 dev->wiphy.wowlan.pattern_max_len,
1236 };
9360ffd1
DM		 1237 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1238 sizeof(pat), &pat))
1239 goto nla_put_failure;
ff1b6e69
JB		 1240 }
1241
1242 nla_nest_end(msg, nl_wowlan);
1243 }
dfb89c56 1244#endif
ff1b6e69 1245
7527a782
JB		 1246 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1247 dev->wiphy.software_iftypes))
1248 goto nla_put_failure;
1249
1250 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1251 goto nla_put_failure;
1252
9360ffd1
DM		 1253 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1254 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1255 dev->wiphy.ap_sme_capa))
1256 goto nla_put_failure;
562a7480 1257
9360ffd1
DM		 1258 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1259 dev->wiphy.features))
1260 goto nla_put_failure;
1f074bd8 1261
9360ffd1
DM		 1262 if (dev->wiphy.ht_capa_mod_mask &&
1263 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1264 sizeof(*dev->wiphy.ht_capa_mod_mask),
1265 dev->wiphy.ht_capa_mod_mask))
1266 goto nla_put_failure;
7e7c8926 1267
55682965
JB		 1268 return genlmsg_end(msg, hdr);
1269
1270 nla_put_failure:
bc3ed28c
TG		 1271 genlmsg_cancel(msg, hdr);
1272 return -EMSGSIZE;
55682965
JB		 1273}
1274
1275static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1276{
1277 int idx = 0;
1278 int start = cb->args[0];
1279 struct cfg80211_registered_device *dev;
1280
a1794390 1281 mutex_lock(&cfg80211_mutex);
79c97e97 1282 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1283 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1284 continue;
b4637271 1285 if (++idx <= start)
55682965 1286 continue;
15e47304 1287 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
55682965 1288 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1289 dev) < 0) {
1290 idx--;
55682965 1291 break;
b4637271 1292 }
55682965 1293 }
a1794390 1294 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1295
1296 cb->args[0] = idx;
1297
1298 return skb->len;
1299}
1300
1301static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1302{
1303 struct sk_buff *msg;
4c476991 1304 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1305
fd2120ca 1306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1307 if (!msg)
4c476991 1308 return -ENOMEM;
55682965 1309
15e47304 1310 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
4c476991
JB		 1311 nlmsg_free(msg);
1312 return -ENOBUFS;
1313 }
55682965 1314
134e6375 1315 return genlmsg_reply(msg, info);
55682965
JB		 1316}
1317
31888487
JM		 1318static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1319 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1320 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1321 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1322 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1323 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1324};
1325
1326static int parse_txq_params(struct nlattr *tb[],
1327 struct ieee80211_txq_params *txq_params)
1328{
a3304b0a 1329 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1330 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1331 !tb[NL80211_TXQ_ATTR_AIFS])
1332 return -EINVAL;
1333
a3304b0a 1334 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1335 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1336 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1337 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1338 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1339
a3304b0a
JB		 1340 if (txq_params->ac >= NL80211_NUM_ACS)
1341 return -EINVAL;
1342
31888487
JM		 1343 return 0;
1344}
1345
f444de05
JB		 1346static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1347{
1348 /*
cc1d2806
JB		 1349 * You can only set the channel explicitly for WDS interfaces,
1350 * all others have their channel managed via their respective
1351 * "establish a connection" command (connect, join, ...)
1352 *
1353 * For AP/GO and mesh mode, the channel can be set with the
1354 * channel userspace API, but is only stored and passed to the
1355 * low-level driver when the AP starts or the mesh is joined.
1356 * This is for backward compatibility, userspace can also give
1357 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1358 *
1359 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1360 * whatever else is going on, so they have their own special
1361 * operation to set the monitor channel if possible.
f444de05
JB		 1362 */
1363 return !wdev ||
1364 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1365 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1366 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1367 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1368}
1369
683b6d3b
JB		 1370static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1371 struct genl_info *info,
1372 struct cfg80211_chan_def *chandef)
1373{
dbeca2ea 1374 u32 control_freq;
683b6d3b
JB		 1375
1376 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1377 return -EINVAL;
1378
1379 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1380
1381 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1382 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1383 chandef->center_freq1 = control_freq;
1384 chandef->center_freq2 = 0;
683b6d3b
JB		 1385
1386 /* Primary channel not allowed */
1387 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1388 return -EINVAL;
1389
3d9d1d66
JB		 1390 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1391 enum nl80211_channel_type chantype;
1392
1393 chantype = nla_get_u32(
1394 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1395
1396 switch (chantype) {
1397 case NL80211_CHAN_NO_HT:
1398 case NL80211_CHAN_HT20:
1399 case NL80211_CHAN_HT40PLUS:
1400 case NL80211_CHAN_HT40MINUS:
1401 cfg80211_chandef_create(chandef, chandef->chan,
1402 chantype);
1403 break;
1404 default:
1405 return -EINVAL;
1406 }
1407 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1408 chandef->width =
1409 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1410 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1411 chandef->center_freq1 =
1412 nla_get_u32(
1413 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1414 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1415 chandef->center_freq2 =
1416 nla_get_u32(
1417 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1418 }
1419
9f5e8f6e 1420 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1421 return -EINVAL;
1422
9f5e8f6e
JB		 1423 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1424 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1425 return -EINVAL;
1426
683b6d3b
JB		 1427 return 0;
1428}
1429
f444de05
JB		 1430static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1431 struct wireless_dev *wdev,
1432 struct genl_info *info)
1433{
683b6d3b 1434 struct cfg80211_chan_def chandef;
f444de05 1435 int result;
e8c9bd5b
JB		 1436 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1437
1438 if (wdev)
1439 iftype = wdev->iftype;
f444de05 1440
f444de05
JB		 1441 if (!nl80211_can_set_dev_channel(wdev))
1442 return -EOPNOTSUPP;
1443
683b6d3b
JB		 1444 result = nl80211_parse_chandef(rdev, info, &chandef);
1445 if (result)
1446 return result;
f444de05
JB		 1447
1448 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1449 switch (iftype) {
aa430da4
JB		 1450 case NL80211_IFTYPE_AP:
1451 case NL80211_IFTYPE_P2P_GO:
1452 if (wdev->beacon_interval) {
1453 result = -EBUSY;
1454 break;
1455 }
683b6d3b 1456 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1457 result = -EINVAL;
1458 break;
1459 }
683b6d3b 1460 wdev->preset_chandef = chandef;
aa430da4
JB		 1461 result = 0;
1462 break;
cc1d2806 1463 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1464 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1465 break;
e8c9bd5b 1466 case NL80211_IFTYPE_MONITOR:
683b6d3b 1467 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1468 break;
aa430da4 1469 default:
e8c9bd5b 1470 result = -EINVAL;
f444de05
JB		 1471 }
1472 mutex_unlock(&rdev->devlist_mtx);
1473
1474 return result;
1475}
1476
1477static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1478{
4c476991
JB		 1479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1480 struct net_device *netdev = info->user_ptr[1];
f444de05 1481
4c476991 1482 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1483}
1484
e8347eba
BJ		 1485static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1486{
43b19952
JB		 1487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1488 struct net_device *dev = info->user_ptr[1];
1489 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1490 const u8 *bssid;
e8347eba
BJ		 1491
1492 if (!info->attrs[NL80211_ATTR_MAC])
1493 return -EINVAL;
1494
43b19952
JB		 1495 if (netif_running(dev))
1496 return -EBUSY;
e8347eba 1497
43b19952
JB		 1498 if (!rdev->ops->set_wds_peer)
1499 return -EOPNOTSUPP;
e8347eba 1500
43b19952
JB		 1501 if (wdev->iftype != NL80211_IFTYPE_WDS)
1502 return -EOPNOTSUPP;
e8347eba
BJ		 1503
1504 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1505 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1506}
1507
1508
55682965
JB		 1509static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1510{
1511 struct cfg80211_registered_device *rdev;
f444de05
JB		 1512 struct net_device *netdev = NULL;
1513 struct wireless_dev *wdev;
a1e567c8 1514 int result = 0, rem_txq_params = 0;
31888487 1515 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1516 u32 changed;
1517 u8 retry_short = 0, retry_long = 0;
1518 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1519 u8 coverage_class = 0;
55682965 1520
f444de05
JB		 1521 /*
1522 * Try to find the wiphy and netdev. Normally this
1523 * function shouldn't need the netdev, but this is
1524 * done for backward compatibility -- previously
1525 * setting the channel was done per wiphy, but now
1526 * it is per netdev. Previous userland like hostapd
1527 * also passed a netdev to set_wiphy, so that it is
1528 * possible to let that go to the right netdev!
1529 */
4bbf4d56
JB		 1530 mutex_lock(&cfg80211_mutex);
1531
f444de05
JB		 1532 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1533 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1534
1535 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1536 if (netdev && netdev->ieee80211_ptr) {
1537 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1538 mutex_lock(&rdev->mtx);
1539 } else
1540 netdev = NULL;
4bbf4d56
JB		 1541 }
1542
f444de05 1543 if (!netdev) {
878d9ec7
JB		 1544 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1545 info->attrs);
f444de05
JB		 1546 if (IS_ERR(rdev)) {
1547 mutex_unlock(&cfg80211_mutex);
4c476991 1548 return PTR_ERR(rdev);
f444de05
JB		 1549 }
1550 wdev = NULL;
1551 netdev = NULL;
1552 result = 0;
1553
1554 mutex_lock(&rdev->mtx);
71fe96bf 1555 } else
f444de05 1556 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1557
1558 /*
1559 * end workaround code, by now the rdev is available
1560 * and locked, and wdev may or may not be NULL.
1561 */
4bbf4d56
JB		 1562
1563 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1564 result = cfg80211_dev_rename(
1565 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1566
1567 mutex_unlock(&cfg80211_mutex);
1568
1569 if (result)
1570 goto bad_res;
31888487
JM		 1571
1572 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1573 struct ieee80211_txq_params txq_params;
1574 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1575
1576 if (!rdev->ops->set_txq_params) {
1577 result = -EOPNOTSUPP;
1578 goto bad_res;
1579 }
1580
f70f01c2
EP		 1581 if (!netdev) {
1582 result = -EINVAL;
1583 goto bad_res;
1584 }
1585
133a3ff2
JB		 1586 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1587 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1588 result = -EINVAL;
1589 goto bad_res;
1590 }
1591
2b5f8b0b
JB		 1592 if (!netif_running(netdev)) {
1593 result = -ENETDOWN;
1594 goto bad_res;
1595 }
1596
31888487
JM		 1597 nla_for_each_nested(nl_txq_params,
1598 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1599 rem_txq_params) {
1600 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1601 nla_data(nl_txq_params),
1602 nla_len(nl_txq_params),
1603 txq_params_policy);
1604 result = parse_txq_params(tb, &txq_params);
1605 if (result)
1606 goto bad_res;
1607
e35e4d28
HG		 1608 result = rdev_set_txq_params(rdev, netdev,
1609 &txq_params);
31888487
JM		 1610 if (result)
1611 goto bad_res;
1612 }
1613 }
55682965 1614
72bdcf34 1615 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1616 result = __nl80211_set_channel(rdev,
1617 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1618 info);
72bdcf34
JM		 1619 if (result)
1620 goto bad_res;
1621 }
1622
98d2ff8b 1623 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1624 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1625 enum nl80211_tx_power_setting type;
1626 int idx, mbm = 0;
1627
c8442118
JB		 1628 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1629 txp_wdev = NULL;
1630
98d2ff8b 1631 if (!rdev->ops->set_tx_power) {
60ea385f 1632 result = -EOPNOTSUPP;
98d2ff8b
JO		 1633 goto bad_res;
1634 }
1635
1636 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1637 type = nla_get_u32(info->attrs[idx]);
1638
1639 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1640 (type != NL80211_TX_POWER_AUTOMATIC)) {
1641 result = -EINVAL;
1642 goto bad_res;
1643 }
1644
1645 if (type != NL80211_TX_POWER_AUTOMATIC) {
1646 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1647 mbm = nla_get_u32(info->attrs[idx]);
1648 }
1649
c8442118 1650 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1651 if (result)
1652 goto bad_res;
1653 }
1654
afe0cbf8
BR		 1655 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1656 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1657 u32 tx_ant, rx_ant;
7f531e03
BR		 1658 if ((!rdev->wiphy.available_antennas_tx &&
1659 !rdev->wiphy.available_antennas_rx) ||
1660 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1661 result = -EOPNOTSUPP;
1662 goto bad_res;
1663 }
1664
1665 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1666 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1667
a7ffac95 1668 /* reject antenna configurations which don't match the
7f531e03
BR		 1669 * available antenna masks, except for the "all" mask */
1670 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1671 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1672 result = -EINVAL;
1673 goto bad_res;
1674 }
1675
7f531e03
BR		 1676 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1677 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1678
e35e4d28 1679 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1680 if (result)
1681 goto bad_res;
1682 }
1683
b9a5f8ca
JM		 1684 changed = 0;
1685
1686 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1687 retry_short = nla_get_u8(
1688 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1689 if (retry_short == 0) {
1690 result = -EINVAL;
1691 goto bad_res;
1692 }
1693 changed |= WIPHY_PARAM_RETRY_SHORT;
1694 }
1695
1696 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1697 retry_long = nla_get_u8(
1698 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1699 if (retry_long == 0) {
1700 result = -EINVAL;
1701 goto bad_res;
1702 }
1703 changed |= WIPHY_PARAM_RETRY_LONG;
1704 }
1705
1706 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1707 frag_threshold = nla_get_u32(
1708 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1709 if (frag_threshold < 256) {
1710 result = -EINVAL;
1711 goto bad_res;
1712 }
1713 if (frag_threshold != (u32) -1) {
1714 /*
1715 * Fragments (apart from the last one) are required to
1716 * have even length. Make the fragmentation code
1717 * simpler by stripping LSB should someone try to use
1718 * odd threshold value.
1719 */
1720 frag_threshold &= ~0x1;
1721 }
1722 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1723 }
1724
1725 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1726 rts_threshold = nla_get_u32(
1727 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1728 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1729 }
1730
81077e82
LT		 1731 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1732 coverage_class = nla_get_u8(
1733 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1734 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1735 }
1736
b9a5f8ca
JM		 1737 if (changed) {
1738 u8 old_retry_short, old_retry_long;
1739 u32 old_frag_threshold, old_rts_threshold;
81077e82 1740 u8 old_coverage_class;
b9a5f8ca
JM		 1741
1742 if (!rdev->ops->set_wiphy_params) {
1743 result = -EOPNOTSUPP;
1744 goto bad_res;
1745 }
1746
1747 old_retry_short = rdev->wiphy.retry_short;
1748 old_retry_long = rdev->wiphy.retry_long;
1749 old_frag_threshold = rdev->wiphy.frag_threshold;
1750 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1751 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1752
1753 if (changed & WIPHY_PARAM_RETRY_SHORT)
1754 rdev->wiphy.retry_short = retry_short;
1755 if (changed & WIPHY_PARAM_RETRY_LONG)
1756 rdev->wiphy.retry_long = retry_long;
1757 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1758 rdev->wiphy.frag_threshold = frag_threshold;
1759 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1760 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1761 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1762 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 1763
e35e4d28 1764 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 1765 if (result) {
1766 rdev->wiphy.retry_short = old_retry_short;
1767 rdev->wiphy.retry_long = old_retry_long;
1768 rdev->wiphy.frag_threshold = old_frag_threshold;
1769 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1770 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1771 }
1772 }
72bdcf34 1773
306d6112 1774 bad_res:
4bbf4d56 1775 mutex_unlock(&rdev->mtx);
f444de05
JB		 1776 if (netdev)
1777 dev_put(netdev);
55682965
JB		 1778 return result;
1779}
1780
71bbc994
JB		 1781static inline u64 wdev_id(struct wireless_dev *wdev)
1782{
1783 return (u64)wdev->identifier |
1784 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1785}
55682965 1786
683b6d3b
JB		 1787static int nl80211_send_chandef(struct sk_buff *msg,
1788 struct cfg80211_chan_def *chandef)
1789{
9f5e8f6e 1790 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 1791
683b6d3b
JB		 1792 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1793 chandef->chan->center_freq))
1794 return -ENOBUFS;
3d9d1d66
JB		 1795 switch (chandef->width) {
1796 case NL80211_CHAN_WIDTH_20_NOHT:
1797 case NL80211_CHAN_WIDTH_20:
1798 case NL80211_CHAN_WIDTH_40:
1799 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1800 cfg80211_get_chandef_type(chandef)))
1801 return -ENOBUFS;
1802 break;
1803 default:
1804 break;
1805 }
1806 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1807 return -ENOBUFS;
1808 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1809 return -ENOBUFS;
1810 if (chandef->center_freq2 &&
1811 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 1812 return -ENOBUFS;
1813 return 0;
1814}
1815
15e47304 1816static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 1817 struct cfg80211_registered_device *rdev,
72fb2abc 1818 struct wireless_dev *wdev)
55682965 1819{
72fb2abc 1820 struct net_device *dev = wdev->netdev;
55682965
JB		 1821 void *hdr;
1822
15e47304 1823 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 1824 if (!hdr)
1825 return -1;
1826
72fb2abc
JB		 1827 if (dev &&
1828 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 1829 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 1830 goto nla_put_failure;
1831
1832 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1833 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 1834 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 1835 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 1836 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1837 rdev->devlist_generation ^
1838 (cfg80211_rdev_list_generation << 2)))
1839 goto nla_put_failure;
f5ea9120 1840
5b7ccaf3 1841 if (rdev->ops->get_channel) {
683b6d3b
JB		 1842 int ret;
1843 struct cfg80211_chan_def chandef;
1844
1845 ret = rdev_get_channel(rdev, wdev, &chandef);
1846 if (ret == 0) {
1847 if (nl80211_send_chandef(msg, &chandef))
1848 goto nla_put_failure;
1849 }
d91df0e3
PF		 1850 }
1851
b84e7a05
AQ		 1852 if (wdev->ssid_len) {
1853 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1854 goto nla_put_failure;
1855 }
1856
55682965
JB		 1857 return genlmsg_end(msg, hdr);
1858
1859 nla_put_failure:
bc3ed28c
TG		 1860 genlmsg_cancel(msg, hdr);
1861 return -EMSGSIZE;
55682965
JB		 1862}
1863
1864static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1865{
1866 int wp_idx = 0;
1867 int if_idx = 0;
1868 int wp_start = cb->args[0];
1869 int if_start = cb->args[1];
f5ea9120 1870 struct cfg80211_registered_device *rdev;
55682965
JB		 1871 struct wireless_dev *wdev;
1872
a1794390 1873 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1874 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1875 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1876 continue;
bba95fef
JB		 1877 if (wp_idx < wp_start) {
1878 wp_idx++;
55682965 1879 continue;
bba95fef 1880 }
55682965
JB		 1881 if_idx = 0;
1882
f5ea9120 1883 mutex_lock(&rdev->devlist_mtx);
89a54e48 1884 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1885 if (if_idx < if_start) {
1886 if_idx++;
55682965 1887 continue;
bba95fef 1888 }
15e47304 1889 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 1890 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 1891 rdev, wdev) < 0) {
f5ea9120 1892 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1893 goto out;
1894 }
1895 if_idx++;
55682965 1896 }
f5ea9120 1897 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1898
1899 wp_idx++;
55682965 1900 }
bba95fef 1901 out:
a1794390 1902 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1903
1904 cb->args[0] = wp_idx;
1905 cb->args[1] = if_idx;
1906
1907 return skb->len;
1908}
1909
1910static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1911{
1912 struct sk_buff *msg;
4c476991 1913 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 1914 struct wireless_dev *wdev = info->user_ptr[1];
55682965 1915
fd2120ca 1916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1917 if (!msg)
4c476991 1918 return -ENOMEM;
55682965 1919
15e47304 1920 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 1921 dev, wdev) < 0) {
4c476991
JB		 1922 nlmsg_free(msg);
1923 return -ENOBUFS;
1924 }
55682965 1925
134e6375 1926 return genlmsg_reply(msg, info);
55682965
JB		 1927}
1928
66f7ac50
MW		 1929static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1930 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1931 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1932 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1933 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1934 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1935};
1936
1937static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1938{
1939 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1940 int flag;
1941
1942 *mntrflags = 0;
1943
1944 if (!nla)
1945 return -EINVAL;
1946
1947 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1948 nla, mntr_flags_policy))
1949 return -EINVAL;
1950
1951 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1952 if (flags[flag])
1953 *mntrflags |= (1<<flag);
1954
1955 return 0;
1956}
1957
9bc383de 1958static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1959 struct net_device *netdev, u8 use_4addr,
1960 enum nl80211_iftype iftype)
9bc383de 1961{
ad4bb6f8 1962 if (!use_4addr) {
f350a0a8 1963 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1964 return -EBUSY;
9bc383de 1965 return 0;
ad4bb6f8 1966 }
9bc383de
JB		 1967
1968 switch (iftype) {
1969 case NL80211_IFTYPE_AP_VLAN:
1970 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1971 return 0;
1972 break;
1973 case NL80211_IFTYPE_STATION:
1974 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1975 return 0;
1976 break;
1977 default:
1978 break;
1979 }
1980
1981 return -EOPNOTSUPP;
1982}
1983
55682965
JB		 1984static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1985{
4c476991 1986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1987 struct vif_params params;
e36d56b6 1988 int err;
04a773ad 1989 enum nl80211_iftype otype, ntype;
4c476991 1990 struct net_device *dev = info->user_ptr[1];
92ffe055 1991 u32 _flags, *flags = NULL;
ac7f9cfa 1992 bool change = false;
55682965 1993
2ec600d6
LCC		 1994 memset(&params, 0, sizeof(params));
1995
04a773ad 1996 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1997
723b038d 1998 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1999 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2000 if (otype != ntype)
ac7f9cfa 2001 change = true;
4c476991
JB		 2002 if (ntype > NL80211_IFTYPE_MAX)
2003 return -EINVAL;
723b038d
JB		 2004 }
2005
92ffe055 2006 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2007 struct wireless_dev *wdev = dev->ieee80211_ptr;
2008
4c476991
JB		 2009 if (ntype != NL80211_IFTYPE_MESH_POINT)
2010 return -EINVAL;
29cbe68c
JB		 2011 if (netif_running(dev))
2012 return -EBUSY;
2013
2014 wdev_lock(wdev);
2015 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2016 IEEE80211_MAX_MESH_ID_LEN);
2017 wdev->mesh_id_up_len =
2018 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2019 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2020 wdev->mesh_id_up_len);
2021 wdev_unlock(wdev);
2ec600d6
LCC		 2022 }
2023
8b787643
FF		 2024 if (info->attrs[NL80211_ATTR_4ADDR]) {
2025 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2026 change = true;
ad4bb6f8 2027 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2028 if (err)
4c476991 2029 return err;
8b787643
FF		 2030 } else {
2031 params.use_4addr = -1;
2032 }
2033
92ffe055 2034 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2035 if (ntype != NL80211_IFTYPE_MONITOR)
2036 return -EINVAL;
92ffe055
JB		 2037 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2038 &_flags);
ac7f9cfa 2039 if (err)
4c476991 2040 return err;
ac7f9cfa
JB		 2041
2042 flags = &_flags;
2043 change = true;
92ffe055 2044 }
3b85875a 2045
ac7f9cfa 2046 if (change)
3d54d255 2047 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2048 else
2049 err = 0;
60719ffd 2050
9bc383de
JB		 2051 if (!err && params.use_4addr != -1)
2052 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2053
55682965
JB		 2054 return err;
2055}
2056
2057static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2058{
4c476991 2059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2060 struct vif_params params;
84efbb84 2061 struct wireless_dev *wdev;
1c90f9d4 2062 struct sk_buff *msg;
55682965
JB		 2063 int err;
2064 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2065 u32 flags;
55682965 2066
2ec600d6
LCC		 2067 memset(&params, 0, sizeof(params));
2068
55682965
JB		 2069 if (!info->attrs[NL80211_ATTR_IFNAME])
2070 return -EINVAL;
2071
2072 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2073 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2074 if (type > NL80211_IFTYPE_MAX)
2075 return -EINVAL;
2076 }
2077
79c97e97 2078 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2079 !(rdev->wiphy.interface_modes & (1 << type)))
2080 return -EOPNOTSUPP;
55682965 2081
9bc383de 2082 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2083 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2084 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2085 if (err)
4c476991 2086 return err;
9bc383de 2087 }
8b787643 2088
1c90f9d4
JB		 2089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2090 if (!msg)
2091 return -ENOMEM;
2092
66f7ac50
MW		 2093 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2094 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2095 &flags);
e35e4d28
HG		 2096 wdev = rdev_add_virtual_intf(rdev,
2097 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2098 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2099 if (IS_ERR(wdev)) {
2100 nlmsg_free(msg);
84efbb84 2101 return PTR_ERR(wdev);
1c90f9d4 2102 }
2ec600d6 2103
98104fde
JB		 2104 switch (type) {
2105 case NL80211_IFTYPE_MESH_POINT:
2106 if (!info->attrs[NL80211_ATTR_MESH_ID])
2107 break;
29cbe68c
JB		 2108 wdev_lock(wdev);
2109 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2110 IEEE80211_MAX_MESH_ID_LEN);
2111 wdev->mesh_id_up_len =
2112 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2113 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2114 wdev->mesh_id_up_len);
2115 wdev_unlock(wdev);
98104fde
JB		 2116 break;
2117 case NL80211_IFTYPE_P2P_DEVICE:
2118 /*
2119 * P2P Device doesn't have a netdev, so doesn't go
2120 * through the netdev notifier and must be added here
2121 */
2122 mutex_init(&wdev->mtx);
2123 INIT_LIST_HEAD(&wdev->event_list);
2124 spin_lock_init(&wdev->event_lock);
2125 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2126 spin_lock_init(&wdev->mgmt_registrations_lock);
2127
2128 mutex_lock(&rdev->devlist_mtx);
2129 wdev->identifier = ++rdev->wdev_id;
2130 list_add_rcu(&wdev->list, &rdev->wdev_list);
2131 rdev->devlist_generation++;
2132 mutex_unlock(&rdev->devlist_mtx);
2133 break;
2134 default:
2135 break;
29cbe68c
JB		 2136 }
2137
15e47304 2138 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2139 rdev, wdev) < 0) {
2140 nlmsg_free(msg);
2141 return -ENOBUFS;
2142 }
2143
2144 return genlmsg_reply(msg, info);
55682965
JB		 2145}
2146
2147static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2148{
4c476991 2149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2150 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2151
4c476991
JB		 2152 if (!rdev->ops->del_virtual_intf)
2153 return -EOPNOTSUPP;
55682965 2154
84efbb84
JB		 2155 /*
2156 * If we remove a wireless device without a netdev then clear
2157 * user_ptr[1] so that nl80211_post_doit won't dereference it
2158 * to check if it needs to do dev_put(). Otherwise it crashes
2159 * since the wdev has been freed, unlike with a netdev where
2160 * we need the dev_put() for the netdev to really be freed.
2161 */
2162 if (!wdev->netdev)
2163 info->user_ptr[1] = NULL;
2164
e35e4d28 2165 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2166}
2167
1d9d9213
SW		 2168static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2169{
2170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2171 struct net_device *dev = info->user_ptr[1];
2172 u16 noack_map;
2173
2174 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2175 return -EINVAL;
2176
2177 if (!rdev->ops->set_noack_map)
2178 return -EOPNOTSUPP;
2179
2180 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2181
e35e4d28 2182 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2183}
2184
41ade00f
JB		 2185struct get_key_cookie {
2186 struct sk_buff *msg;
2187 int error;
b9454e83 2188 int idx;
41ade00f
JB		 2189};
2190
2191static void get_key_callback(void *c, struct key_params *params)
2192{
b9454e83 2193 struct nlattr *key;
41ade00f
JB		 2194 struct get_key_cookie *cookie = c;
2195
9360ffd1
DM		 2196 if ((params->key &&
2197 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2198 params->key_len, params->key)) ||
2199 (params->seq &&
2200 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2201 params->seq_len, params->seq)) ||
2202 (params->cipher &&
2203 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2204 params->cipher)))
2205 goto nla_put_failure;
41ade00f 2206
b9454e83
JB		 2207 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2208 if (!key)
2209 goto nla_put_failure;
2210
9360ffd1
DM		 2211 if ((params->key &&
2212 nla_put(cookie->msg, NL80211_KEY_DATA,
2213 params->key_len, params->key)) ||
2214 (params->seq &&
2215 nla_put(cookie->msg, NL80211_KEY_SEQ,
2216 params->seq_len, params->seq)) ||
2217 (params->cipher &&
2218 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2219 params->cipher)))
2220 goto nla_put_failure;
b9454e83 2221
9360ffd1
DM		 2222 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2223 goto nla_put_failure;
b9454e83
JB		 2224
2225 nla_nest_end(cookie->msg, key);
2226
41ade00f
JB		 2227 return;
2228 nla_put_failure:
2229 cookie->error = 1;
2230}
2231
2232static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2233{
4c476991 2234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2235 int err;
4c476991 2236 struct net_device *dev = info->user_ptr[1];
41ade00f 2237 u8 key_idx = 0;
e31b8213
JB		 2238 const u8 *mac_addr = NULL;
2239 bool pairwise;
41ade00f
JB		 2240 struct get_key_cookie cookie = {
2241 .error = 0,
2242 };
2243 void *hdr;
2244 struct sk_buff *msg;
2245
2246 if (info->attrs[NL80211_ATTR_KEY_IDX])
2247 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2248
3cfcf6ac 2249 if (key_idx > 5)
41ade00f
JB		 2250 return -EINVAL;
2251
2252 if (info->attrs[NL80211_ATTR_MAC])
2253 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2254
e31b8213
JB		 2255 pairwise = !!mac_addr;
2256 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2257 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2258 if (kt >= NUM_NL80211_KEYTYPES)
2259 return -EINVAL;
2260 if (kt != NL80211_KEYTYPE_GROUP &&
2261 kt != NL80211_KEYTYPE_PAIRWISE)
2262 return -EINVAL;
2263 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2264 }
2265
4c476991
JB		 2266 if (!rdev->ops->get_key)
2267 return -EOPNOTSUPP;
41ade00f 2268
fd2120ca 2269 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2270 if (!msg)
2271 return -ENOMEM;
41ade00f 2272
15e47304 2273 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2274 NL80211_CMD_NEW_KEY);
4c476991
JB		 2275 if (IS_ERR(hdr))
2276 return PTR_ERR(hdr);
41ade00f
JB		 2277
2278 cookie.msg = msg;
b9454e83 2279 cookie.idx = key_idx;
41ade00f 2280
9360ffd1
DM		 2281 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2282 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2283 goto nla_put_failure;
2284 if (mac_addr &&
2285 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2286 goto nla_put_failure;
41ade00f 2287
e31b8213
JB		 2288 if (pairwise && mac_addr &&
2289 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2290 return -ENOENT;
2291
e35e4d28
HG		 2292 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2293 get_key_callback);
41ade00f
JB		 2294
2295 if (err)
6c95e2a2 2296 goto free_msg;
41ade00f
JB		 2297
2298 if (cookie.error)
2299 goto nla_put_failure;
2300
2301 genlmsg_end(msg, hdr);
4c476991 2302 return genlmsg_reply(msg, info);
41ade00f
JB		 2303
2304 nla_put_failure:
2305 err = -ENOBUFS;
6c95e2a2 2306 free_msg:
41ade00f 2307 nlmsg_free(msg);
41ade00f
JB		 2308 return err;
2309}
2310
2311static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2312{
4c476991 2313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2314 struct key_parse key;
41ade00f 2315 int err;
4c476991 2316 struct net_device *dev = info->user_ptr[1];
41ade00f 2317
b9454e83
JB		 2318 err = nl80211_parse_key(info, &key);
2319 if (err)
2320 return err;
41ade00f 2321
b9454e83 2322 if (key.idx < 0)
41ade00f
JB		 2323 return -EINVAL;
2324
b9454e83
JB		 2325 /* only support setting default key */
2326 if (!key.def && !key.defmgmt)
41ade00f
JB		 2327 return -EINVAL;
2328
dbd2fd65 2329 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2330
dbd2fd65
JB		 2331 if (key.def) {
2332 if (!rdev->ops->set_default_key) {
2333 err = -EOPNOTSUPP;
2334 goto out;
2335 }
41ade00f 2336
dbd2fd65
JB		 2337 err = nl80211_key_allowed(dev->ieee80211_ptr);
2338 if (err)
2339 goto out;
2340
e35e4d28 2341 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2342 key.def_uni, key.def_multi);
2343
2344 if (err)
2345 goto out;
fffd0934 2346
3d23e349 2347#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2348 dev->ieee80211_ptr->wext.default_key = key.idx;
2349#endif
2350 } else {
2351 if (key.def_uni || !key.def_multi) {
2352 err = -EINVAL;
2353 goto out;
2354 }
2355
2356 if (!rdev->ops->set_default_mgmt_key) {
2357 err = -EOPNOTSUPP;
2358 goto out;
2359 }
2360
2361 err = nl80211_key_allowed(dev->ieee80211_ptr);
2362 if (err)
2363 goto out;
2364
e35e4d28 2365 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2366 if (err)
2367 goto out;
2368
2369#ifdef CONFIG_CFG80211_WEXT
2370 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2371#endif
dbd2fd65
JB		 2372 }
2373
2374 out:
fffd0934 2375 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2376
41ade00f
JB		 2377 return err;
2378}
2379
2380static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2381{
4c476991 2382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2383 int err;
4c476991 2384 struct net_device *dev = info->user_ptr[1];
b9454e83 2385 struct key_parse key;
e31b8213 2386 const u8 *mac_addr = NULL;
41ade00f 2387
b9454e83
JB		 2388 err = nl80211_parse_key(info, &key);
2389 if (err)
2390 return err;
41ade00f 2391
b9454e83 2392 if (!key.p.key)
41ade00f
JB		 2393 return -EINVAL;
2394
41ade00f
JB		 2395 if (info->attrs[NL80211_ATTR_MAC])
2396 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2397
e31b8213
JB		 2398 if (key.type == -1) {
2399 if (mac_addr)
2400 key.type = NL80211_KEYTYPE_PAIRWISE;
2401 else
2402 key.type = NL80211_KEYTYPE_GROUP;
2403 }
2404
2405 /* for now */
2406 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2407 key.type != NL80211_KEYTYPE_GROUP)
2408 return -EINVAL;
2409
4c476991
JB		 2410 if (!rdev->ops->add_key)
2411 return -EOPNOTSUPP;
25e47c18 2412
e31b8213
JB		 2413 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2414 key.type == NL80211_KEYTYPE_PAIRWISE,
2415 mac_addr))
4c476991 2416 return -EINVAL;
41ade00f 2417
fffd0934
JB		 2418 wdev_lock(dev->ieee80211_ptr);
2419 err = nl80211_key_allowed(dev->ieee80211_ptr);
2420 if (!err)
e35e4d28
HG		 2421 err = rdev_add_key(rdev, dev, key.idx,
2422 key.type == NL80211_KEYTYPE_PAIRWISE,
2423 mac_addr, &key.p);
fffd0934 2424 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2425
41ade00f
JB		 2426 return err;
2427}
2428
2429static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2430{
4c476991 2431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2432 int err;
4c476991 2433 struct net_device *dev = info->user_ptr[1];
41ade00f 2434 u8 *mac_addr = NULL;
b9454e83 2435 struct key_parse key;
41ade00f 2436
b9454e83
JB		 2437 err = nl80211_parse_key(info, &key);
2438 if (err)
2439 return err;
41ade00f
JB		 2440
2441 if (info->attrs[NL80211_ATTR_MAC])
2442 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2443
e31b8213
JB		 2444 if (key.type == -1) {
2445 if (mac_addr)
2446 key.type = NL80211_KEYTYPE_PAIRWISE;
2447 else
2448 key.type = NL80211_KEYTYPE_GROUP;
2449 }
2450
2451 /* for now */
2452 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2453 key.type != NL80211_KEYTYPE_GROUP)
2454 return -EINVAL;
2455
4c476991
JB		 2456 if (!rdev->ops->del_key)
2457 return -EOPNOTSUPP;
41ade00f 2458
fffd0934
JB		 2459 wdev_lock(dev->ieee80211_ptr);
2460 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2461
2462 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2463 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2464 err = -ENOENT;
2465
fffd0934 2466 if (!err)
e35e4d28
HG		 2467 err = rdev_del_key(rdev, dev, key.idx,
2468 key.type == NL80211_KEYTYPE_PAIRWISE,
2469 mac_addr);
41ade00f 2470
3d23e349 2471#ifdef CONFIG_CFG80211_WEXT
08645126 2472 if (!err) {
b9454e83 2473 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2474 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2475 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2476 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2477 }
2478#endif
fffd0934 2479 wdev_unlock(dev->ieee80211_ptr);
08645126 2480
41ade00f
JB		 2481 return err;
2482}
2483
8860020e
JB		 2484static int nl80211_parse_beacon(struct genl_info *info,
2485 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2486{
8860020e 2487 bool haveinfo = false;
ed1b6cc7 2488
9946ecfb
JM		 2489 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2490 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2491 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2492 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2493 return -EINVAL;
2494
8860020e 2495 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2496
ed1b6cc7 2497 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2498 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2499 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2500 if (!bcn->head_len)
2501 return -EINVAL;
2502 haveinfo = true;
ed1b6cc7
JB		 2503 }
2504
2505 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2506 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2507 bcn->tail_len =
ed1b6cc7 2508 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2509 haveinfo = true;
ed1b6cc7
JB		 2510 }
2511
4c476991
JB		 2512 if (!haveinfo)
2513 return -EINVAL;
3b85875a 2514
9946ecfb 2515 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2516 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2517 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2518 }
2519
2520 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2521 bcn->proberesp_ies =
9946ecfb 2522 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2523 bcn->proberesp_ies_len =
9946ecfb
JM		 2524 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2525 }
2526
2527 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2528 bcn->assocresp_ies =
9946ecfb 2529 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2530 bcn->assocresp_ies_len =
9946ecfb
JM		 2531 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2532 }
2533
00f740e1 2534 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2535 bcn->probe_resp =
00f740e1 2536 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2537 bcn->probe_resp_len =
00f740e1
AN		 2538 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2539 }
2540
8860020e
JB		 2541 return 0;
2542}
2543
46c1dd0c
FF		 2544static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2545 struct cfg80211_ap_settings *params)
2546{
2547 struct wireless_dev *wdev;
2548 bool ret = false;
2549
2550 mutex_lock(&rdev->devlist_mtx);
2551
89a54e48 2552 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2553 if (wdev->iftype != NL80211_IFTYPE_AP &&
2554 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2555 continue;
2556
683b6d3b 2557 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2558 continue;
2559
683b6d3b 2560 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2561 ret = true;
2562 break;
2563 }
2564
2565 mutex_unlock(&rdev->devlist_mtx);
2566
2567 return ret;
2568}
2569
e39e5b5e
JM		 2570static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2571 enum nl80211_auth_type auth_type,
2572 enum nl80211_commands cmd)
2573{
2574 if (auth_type > NL80211_AUTHTYPE_MAX)
2575 return false;
2576
2577 switch (cmd) {
2578 case NL80211_CMD_AUTHENTICATE:
2579 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2580 auth_type == NL80211_AUTHTYPE_SAE)
2581 return false;
2582 return true;
2583 case NL80211_CMD_CONNECT:
2584 case NL80211_CMD_START_AP:
2585 /* SAE not supported yet */
2586 if (auth_type == NL80211_AUTHTYPE_SAE)
2587 return false;
2588 return true;
2589 default:
2590 return false;
2591 }
2592}
2593
8860020e
JB		 2594static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2595{
2596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2597 struct net_device *dev = info->user_ptr[1];
2598 struct wireless_dev *wdev = dev->ieee80211_ptr;
2599 struct cfg80211_ap_settings params;
2600 int err;
2601
2602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2603 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2604 return -EOPNOTSUPP;
2605
2606 if (!rdev->ops->start_ap)
2607 return -EOPNOTSUPP;
2608
2609 if (wdev->beacon_interval)
2610 return -EALREADY;
2611
2612 memset(&params, 0, sizeof(params));
2613
2614 /* these are required for START_AP */
2615 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2616 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2617 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2618 return -EINVAL;
2619
2620 err = nl80211_parse_beacon(info, &params.beacon);
2621 if (err)
2622 return err;
2623
2624 params.beacon_interval =
2625 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2626 params.dtim_period =
2627 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2628
2629 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2630 if (err)
2631 return err;
2632
2633 /*
2634 * In theory, some of these attributes should be required here
2635 * but since they were not used when the command was originally
2636 * added, keep them optional for old user space programs to let
2637 * them continue to work with drivers that do not need the
2638 * additional information -- drivers must check!
2639 */
2640 if (info->attrs[NL80211_ATTR_SSID]) {
2641 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2642 params.ssid_len =
2643 nla_len(info->attrs[NL80211_ATTR_SSID]);
2644 if (params.ssid_len == 0 ||
2645 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2646 return -EINVAL;
2647 }
2648
2649 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2650 params.hidden_ssid = nla_get_u32(
2651 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2652 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2653 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2654 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2655 return -EINVAL;
2656 }
2657
2658 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2659
2660 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2661 params.auth_type = nla_get_u32(
2662 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 2663 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2664 NL80211_CMD_START_AP))
8860020e
JB		 2665 return -EINVAL;
2666 } else
2667 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2668
2669 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2670 NL80211_MAX_NR_CIPHER_SUITES);
2671 if (err)
2672 return err;
2673
1b658f11
VT		 2674 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2675 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2676 return -EOPNOTSUPP;
2677 params.inactivity_timeout = nla_get_u16(
2678 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2679 }
2680
53cabad7
JB		 2681 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2682 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2683 return -EINVAL;
2684 params.p2p_ctwindow =
2685 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2686 if (params.p2p_ctwindow > 127)
2687 return -EINVAL;
2688 if (params.p2p_ctwindow != 0 &&
2689 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2690 return -EINVAL;
2691 }
2692
2693 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2694 u8 tmp;
2695
2696 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2697 return -EINVAL;
2698 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2699 if (tmp > 1)
2700 return -EINVAL;
2701 params.p2p_opp_ps = tmp;
2702 if (params.p2p_opp_ps != 0 &&
2703 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2704 return -EINVAL;
2705 }
2706
aa430da4 2707 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 2708 err = nl80211_parse_chandef(rdev, info, &params.chandef);
2709 if (err)
2710 return err;
2711 } else if (wdev->preset_chandef.chan) {
2712 params.chandef = wdev->preset_chandef;
46c1dd0c 2713 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2714 return -EINVAL;
2715
683b6d3b 2716 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 2717 return -EINVAL;
2718
e4e32459 2719 mutex_lock(&rdev->devlist_mtx);
683b6d3b 2720 err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan,
e4e32459
MK		 2721 CHAN_MODE_SHARED);
2722 mutex_unlock(&rdev->devlist_mtx);
2723
2724 if (err)
2725 return err;
2726
e35e4d28 2727 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 2728 if (!err) {
683b6d3b 2729 wdev->preset_chandef = params.chandef;
8860020e 2730 wdev->beacon_interval = params.beacon_interval;
683b6d3b 2731 wdev->channel = params.chandef.chan;
06e191e2
AQ		 2732 wdev->ssid_len = params.ssid_len;
2733 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 2734 }
56d1893d 2735 return err;
ed1b6cc7
JB		 2736}
2737
8860020e
JB		 2738static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2739{
2740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2741 struct net_device *dev = info->user_ptr[1];
2742 struct wireless_dev *wdev = dev->ieee80211_ptr;
2743 struct cfg80211_beacon_data params;
2744 int err;
2745
2746 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2747 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2748 return -EOPNOTSUPP;
2749
2750 if (!rdev->ops->change_beacon)
2751 return -EOPNOTSUPP;
2752
2753 if (!wdev->beacon_interval)
2754 return -EINVAL;
2755
2756 err = nl80211_parse_beacon(info, &params);
2757 if (err)
2758 return err;
2759
e35e4d28 2760 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 2761}
2762
2763static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2764{
4c476991
JB		 2765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2766 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2767
60771780 2768 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2769}
2770
5727ef1b
JB		 2771static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2772 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2773 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2774 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2775 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2776 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2777 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2778};
2779
eccb8e8f 2780static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2781 enum nl80211_iftype iftype,
eccb8e8f 2782 struct station_parameters *params)
5727ef1b
JB		 2783{
2784 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2785 struct nlattr *nla;
5727ef1b
JB		 2786 int flag;
2787
eccb8e8f
JB		 2788 /*
2789 * Try parsing the new attribute first so userspace
2790 * can specify both for older kernels.
2791 */
2792 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2793 if (nla) {
2794 struct nl80211_sta_flag_update *sta_flags;
2795
2796 sta_flags = nla_data(nla);
2797 params->sta_flags_mask = sta_flags->mask;
2798 params->sta_flags_set = sta_flags->set;
2799 if ((params->sta_flags_mask |
2800 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2801 return -EINVAL;
2802 return 0;
2803 }
2804
2805 /* if present, parse the old attribute */
5727ef1b 2806
eccb8e8f 2807 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2808 if (!nla)
2809 return 0;
2810
2811 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2812 nla, sta_flags_policy))
2813 return -EINVAL;
2814
bdd3ae3d
JB		 2815 /*
2816 * Only allow certain flags for interface types so that
2817 * other attributes are silently ignored. Remember that
2818 * this is backward compatibility code with old userspace
2819 * and shouldn't be hit in other cases anyway.
2820 */
2821 switch (iftype) {
2822 case NL80211_IFTYPE_AP:
2823 case NL80211_IFTYPE_AP_VLAN:
2824 case NL80211_IFTYPE_P2P_GO:
2825 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2826 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2827 BIT(NL80211_STA_FLAG_WME) |
2828 BIT(NL80211_STA_FLAG_MFP);
2829 break;
2830 case NL80211_IFTYPE_P2P_CLIENT:
2831 case NL80211_IFTYPE_STATION:
2832 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2833 BIT(NL80211_STA_FLAG_TDLS_PEER);
2834 break;
2835 case NL80211_IFTYPE_MESH_POINT:
2836 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2837 BIT(NL80211_STA_FLAG_MFP) |
2838 BIT(NL80211_STA_FLAG_AUTHORIZED);
2839 default:
2840 return -EINVAL;
2841 }
5727ef1b 2842
3383b5a6
JB		 2843 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2844 if (flags[flag]) {
eccb8e8f 2845 params->sta_flags_set |= (1<<flag);
5727ef1b 2846
3383b5a6
JB		 2847 /* no longer support new API additions in old API */
2848 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2849 return -EINVAL;
2850 }
2851 }
2852
5727ef1b
JB		 2853 return 0;
2854}
2855
c8dcfd8a
FF		 2856static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2857 int attr)
2858{
2859 struct nlattr *rate;
8eb41c8d
VK		 2860 u32 bitrate;
2861 u16 bitrate_compat;
c8dcfd8a
FF		 2862
2863 rate = nla_nest_start(msg, attr);
2864 if (!rate)
db9c64cf 2865 return false;
c8dcfd8a
FF		 2866
2867 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2868 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 2869 /* report 16-bit bitrate only if we can */
2870 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 2871 if (bitrate > 0 &&
2872 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
2873 return false;
2874 if (bitrate_compat > 0 &&
2875 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
2876 return false;
2877
2878 if (info->flags & RATE_INFO_FLAGS_MCS) {
2879 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
2880 return false;
2881 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2882 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2883 return false;
2884 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2885 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2886 return false;
2887 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
2888 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
2889 return false;
2890 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
2891 return false;
2892 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2893 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2894 return false;
2895 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
2896 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
2897 return false;
2898 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
2899 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
2900 return false;
2901 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
2902 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
2903 return false;
2904 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2905 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2906 return false;
2907 }
c8dcfd8a
FF		 2908
2909 nla_nest_end(msg, rate);
2910 return true;
c8dcfd8a
FF		 2911}
2912
15e47304 2913static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 2914 int flags,
2915 struct cfg80211_registered_device *rdev,
2916 struct net_device *dev,
98b62183 2917 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2918{
2919 void *hdr;
f4263c98 2920 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 2921
15e47304 2922 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 2923 if (!hdr)
2924 return -1;
2925
9360ffd1
DM		 2926 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2927 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2928 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2929 goto nla_put_failure;
f5ea9120 2930
2ec600d6
LCC		 2931 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2932 if (!sinfoattr)
fd5b74dc 2933 goto nla_put_failure;
9360ffd1
DM		 2934 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2935 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2936 sinfo->connected_time))
2937 goto nla_put_failure;
2938 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2939 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2940 sinfo->inactive_time))
2941 goto nla_put_failure;
2942 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2943 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2944 sinfo->rx_bytes))
2945 goto nla_put_failure;
2946 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2947 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2948 sinfo->tx_bytes))
2949 goto nla_put_failure;
2950 if ((sinfo->filled & STATION_INFO_LLID) &&
2951 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2952 goto nla_put_failure;
2953 if ((sinfo->filled & STATION_INFO_PLID) &&
2954 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2955 goto nla_put_failure;
2956 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2957 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2958 sinfo->plink_state))
2959 goto nla_put_failure;
66266b3a
JL		 2960 switch (rdev->wiphy.signal_type) {
2961 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2962 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2963 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2964 sinfo->signal))
2965 goto nla_put_failure;
2966 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2967 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2968 sinfo->signal_avg))
2969 goto nla_put_failure;
66266b3a
JL		 2970 break;
2971 default:
2972 break;
2973 }
420e7fab 2974 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2975 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2976 NL80211_STA_INFO_TX_BITRATE))
2977 goto nla_put_failure;
2978 }
2979 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2980 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2981 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2982 goto nla_put_failure;
420e7fab 2983 }
9360ffd1
DM		 2984 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2985 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2986 sinfo->rx_packets))
2987 goto nla_put_failure;
2988 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2989 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2990 sinfo->tx_packets))
2991 goto nla_put_failure;
2992 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2993 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2994 sinfo->tx_retries))
2995 goto nla_put_failure;
2996 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2997 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2998 sinfo->tx_failed))
2999 goto nla_put_failure;
3000 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3001 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3002 sinfo->beacon_loss_count))
3003 goto nla_put_failure;
f4263c98
PS		 3004 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3005 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3006 if (!bss_param)
3007 goto nla_put_failure;
3008
9360ffd1
DM		 3009 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3010 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3011 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3012 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3013 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3014 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3015 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3016 sinfo->bss_param.dtim_period) ||
3017 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3018 sinfo->bss_param.beacon_interval))
3019 goto nla_put_failure;
f4263c98
PS		 3020
3021 nla_nest_end(msg, bss_param);
3022 }
9360ffd1
DM		 3023 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3024 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3025 sizeof(struct nl80211_sta_flag_update),
3026 &sinfo->sta_flags))
3027 goto nla_put_failure;
7eab0f64
JL		 3028 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3029 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3030 sinfo->t_offset))
3031 goto nla_put_failure;
2ec600d6 3032 nla_nest_end(msg, sinfoattr);
fd5b74dc 3033
9360ffd1
DM		 3034 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3035 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3036 sinfo->assoc_req_ies))
3037 goto nla_put_failure;
50d3dfb7 3038
fd5b74dc
JB		 3039 return genlmsg_end(msg, hdr);
3040
3041 nla_put_failure:
bc3ed28c
TG		 3042 genlmsg_cancel(msg, hdr);
3043 return -EMSGSIZE;
fd5b74dc
JB		 3044}
3045
2ec600d6 3046static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3047 struct netlink_callback *cb)
2ec600d6 3048{
2ec600d6
LCC		 3049 struct station_info sinfo;
3050 struct cfg80211_registered_device *dev;
bba95fef 3051 struct net_device *netdev;
2ec600d6 3052 u8 mac_addr[ETH_ALEN];
bba95fef 3053 int sta_idx = cb->args[1];
2ec600d6 3054 int err;
2ec600d6 3055
67748893
JB		 3056 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3057 if (err)
3058 return err;
bba95fef
JB		 3059
3060 if (!dev->ops->dump_station) {
eec60b03 3061 err = -EOPNOTSUPP;
bba95fef
JB		 3062 goto out_err;
3063 }
3064
bba95fef 3065 while (1) {
f612cedf 3066 memset(&sinfo, 0, sizeof(sinfo));
e35e4d28
HG		 3067 err = rdev_dump_station(dev, netdev, sta_idx,
3068 mac_addr, &sinfo);
bba95fef
JB		 3069 if (err == -ENOENT)
3070 break;
3071 if (err)
3b85875a 3072 goto out_err;
bba95fef
JB		 3073
3074 if (nl80211_send_station(skb,
15e47304 3075 NETLINK_CB(cb->skb).portid,
bba95fef 3076 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 3077 dev, netdev, mac_addr,
bba95fef
JB		 3078 &sinfo) < 0)
3079 goto out;
3080
3081 sta_idx++;
3082 }
3083
3084
3085 out:
3086 cb->args[1] = sta_idx;
3087 err = skb->len;
bba95fef 3088 out_err:
67748893 3089 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 3090
3091 return err;
2ec600d6 3092}
fd5b74dc 3093
5727ef1b
JB		 3094static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3095{
4c476991
JB		 3096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3097 struct net_device *dev = info->user_ptr[1];
2ec600d6 3098 struct station_info sinfo;
fd5b74dc
JB		 3099 struct sk_buff *msg;
3100 u8 *mac_addr = NULL;
4c476991 3101 int err;
fd5b74dc 3102
2ec600d6 3103 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3104
3105 if (!info->attrs[NL80211_ATTR_MAC])
3106 return -EINVAL;
3107
3108 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3109
4c476991
JB		 3110 if (!rdev->ops->get_station)
3111 return -EOPNOTSUPP;
3b85875a 3112
e35e4d28 3113 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3114 if (err)
4c476991 3115 return err;
2ec600d6 3116
fd2120ca 3117 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3118 if (!msg)
4c476991 3119 return -ENOMEM;
fd5b74dc 3120
15e47304 3121 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3122 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3123 nlmsg_free(msg);
3124 return -ENOBUFS;
3125 }
3b85875a 3126
4c476991 3127 return genlmsg_reply(msg, info);
5727ef1b
JB		 3128}
3129
3130/*
c258d2de 3131 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3132 */
80b99899
JB		 3133static struct net_device *get_vlan(struct genl_info *info,
3134 struct cfg80211_registered_device *rdev)
5727ef1b 3135{
463d0183 3136 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3137 struct net_device *v;
3138 int ret;
3139
3140 if (!vlanattr)
3141 return NULL;
3142
3143 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3144 if (!v)
3145 return ERR_PTR(-ENODEV);
3146
3147 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3148 ret = -EINVAL;
3149 goto error;
5727ef1b 3150 }
80b99899
JB		 3151
3152 if (!netif_running(v)) {
3153 ret = -ENETDOWN;
3154 goto error;
3155 }
3156
3157 return v;
3158 error:
3159 dev_put(v);
3160 return ERR_PTR(ret);
5727ef1b
JB		 3161}
3162
3163static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3164{
4c476991 3165 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3166 int err;
4c476991 3167 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3168 struct station_parameters params;
3169 u8 *mac_addr = NULL;
3170
3171 memset(&params, 0, sizeof(params));
3172
3173 params.listen_interval = -1;
57cf8043 3174 params.plink_state = -1;
5727ef1b
JB		 3175
3176 if (info->attrs[NL80211_ATTR_STA_AID])
3177 return -EINVAL;
3178
3179 if (!info->attrs[NL80211_ATTR_MAC])
3180 return -EINVAL;
3181
3182 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3183
3184 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3185 params.supported_rates =
3186 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3187 params.supported_rates_len =
3188 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3189 }
3190
3191 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3192 params.listen_interval =
3193 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3194
36aedc90
JM		 3195 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3196 params.ht_capa =
3197 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3198
bdd90d5e
JB		 3199 if (!rdev->ops->change_station)
3200 return -EOPNOTSUPP;
3201
bdd3ae3d 3202 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3203 return -EINVAL;
3204
2ec600d6
LCC		 3205 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3206 params.plink_action =
3207 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3208
9c3990aa
JC		 3209 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3210 params.plink_state =
3211 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3212
a97f4424
JB		 3213 switch (dev->ieee80211_ptr->iftype) {
3214 case NL80211_IFTYPE_AP:
3215 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3216 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3217 /* disallow mesh-specific things */
3218 if (params.plink_action)
bdd90d5e
JB		 3219 return -EINVAL;
3220
3221 /* TDLS can't be set, ... */
3222 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3223 return -EINVAL;
3224 /*
3225 * ... but don't bother the driver with it. This works around
3226 * a hostapd/wpa_supplicant issue -- it always includes the
3227 * TLDS_PEER flag in the mask even for AP mode.
3228 */
3229 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3230
3231 /* accept only the listed bits */
3232 if (params.sta_flags_mask &
3233 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3234 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3235 BIT(NL80211_STA_FLAG_WME) |
3236 BIT(NL80211_STA_FLAG_MFP)))
3237 return -EINVAL;
3238
3239 /* must be last in here for error handling */
3240 params.vlan = get_vlan(info, rdev);
3241 if (IS_ERR(params.vlan))
3242 return PTR_ERR(params.vlan);
a97f4424 3243 break;
074ac8df 3244 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3245 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3246 /*
3247 * Don't allow userspace to change the TDLS_PEER flag,
3248 * but silently ignore attempts to change it since we
3249 * don't have state here to verify that it doesn't try
3250 * to change the flag.
3251 */
3252 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 3253 /* fall through */
3254 case NL80211_IFTYPE_ADHOC:
3255 /* disallow things sta doesn't support */
3256 if (params.plink_action)
3257 return -EINVAL;
3258 if (params.ht_capa)
3259 return -EINVAL;
3260 if (params.listen_interval >= 0)
3261 return -EINVAL;
bdd90d5e
JB		 3262 /* reject any changes other than AUTHORIZED */
3263 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3264 return -EINVAL;
a97f4424
JB		 3265 break;
3266 case NL80211_IFTYPE_MESH_POINT:
3267 /* disallow things mesh doesn't support */
3268 if (params.vlan)
bdd90d5e 3269 return -EINVAL;
a97f4424 3270 if (params.ht_capa)
bdd90d5e 3271 return -EINVAL;
a97f4424 3272 if (params.listen_interval >= 0)
bdd90d5e
JB		 3273 return -EINVAL;
3274 /*
3275 * No special handling for TDLS here -- the userspace
3276 * mesh code doesn't have this bug.
3277 */
b39c48fa
JC		 3278 if (params.sta_flags_mask &
3279 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3280 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3281 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3282 return -EINVAL;
a97f4424
JB		 3283 break;
3284 default:
bdd90d5e 3285 return -EOPNOTSUPP;
034d655e
JB		 3286 }
3287
bdd90d5e 3288 /* be aware of params.vlan when changing code here */
5727ef1b 3289
e35e4d28 3290 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3291
5727ef1b
JB		 3292 if (params.vlan)
3293 dev_put(params.vlan);
3b85875a 3294
5727ef1b
JB		 3295 return err;
3296}
3297
c75786c9
EP		 3298static struct nla_policy
3299nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3300 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3301 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3302};
3303
5727ef1b
JB		 3304static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3305{
4c476991 3306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3307 int err;
4c476991 3308 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3309 struct station_parameters params;
3310 u8 *mac_addr = NULL;
3311
3312 memset(&params, 0, sizeof(params));
3313
3314 if (!info->attrs[NL80211_ATTR_MAC])
3315 return -EINVAL;
3316
5727ef1b
JB		 3317 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3318 return -EINVAL;
3319
3320 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3321 return -EINVAL;
3322
0e956c13
TLSC		 3323 if (!info->attrs[NL80211_ATTR_STA_AID])
3324 return -EINVAL;
3325
5727ef1b
JB		 3326 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3327 params.supported_rates =
3328 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3329 params.supported_rates_len =
3330 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3331 params.listen_interval =
3332 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3333
0e956c13
TLSC		 3334 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3335 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3336 return -EINVAL;
51b50fbe 3337
36aedc90
JM		 3338 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3339 params.ht_capa =
3340 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3341
f461be3e
MP		 3342 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3343 params.vht_capa =
3344 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3345
96b78dff
JC		 3346 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3347 params.plink_action =
3348 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3349
bdd90d5e
JB		 3350 if (!rdev->ops->add_station)
3351 return -EOPNOTSUPP;
3352
bdd3ae3d 3353 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3354 return -EINVAL;
3355
bdd90d5e
JB		 3356 switch (dev->ieee80211_ptr->iftype) {
3357 case NL80211_IFTYPE_AP:
3358 case NL80211_IFTYPE_AP_VLAN:
3359 case NL80211_IFTYPE_P2P_GO:
3360 /* parse WME attributes if sta is WME capable */
3361 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3362 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3363 info->attrs[NL80211_ATTR_STA_WME]) {
3364 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3365 struct nlattr *nla;
3366
3367 nla = info->attrs[NL80211_ATTR_STA_WME];
3368 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3369 nl80211_sta_wme_policy);
3370 if (err)
3371 return err;
3372
3373 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3374 params.uapsd_queues =
3375 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3376 if (params.uapsd_queues &
3377 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3378 return -EINVAL;
c75786c9 3379
bdd90d5e
JB		 3380 if (tb[NL80211_STA_WME_MAX_SP])
3381 params.max_sp =
3382 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3383
bdd90d5e
JB		 3384 if (params.max_sp &
3385 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3386 return -EINVAL;
4319e193 3387
bdd90d5e
JB		 3388 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3389 }
3390 /* TDLS peers cannot be added */
3391 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3392 return -EINVAL;
bdd90d5e
JB		 3393 /* but don't bother the driver with it */
3394 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3395
bdd90d5e
JB		 3396 /* must be last in here for error handling */
3397 params.vlan = get_vlan(info, rdev);
3398 if (IS_ERR(params.vlan))
3399 return PTR_ERR(params.vlan);
3400 break;
3401 case NL80211_IFTYPE_MESH_POINT:
3402 /* TDLS peers cannot be added */
3403 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3404 return -EINVAL;
3405 break;
3406 case NL80211_IFTYPE_STATION:
3407 /* Only TDLS peers can be added */
3408 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3409 return -EINVAL;
3410 /* Can only add if TDLS ... */
3411 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3412 return -EOPNOTSUPP;
3413 /* ... with external setup is supported */
3414 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3415 return -EOPNOTSUPP;
3416 break;
3417 default:
3418 return -EOPNOTSUPP;
c75786c9
EP		 3419 }
3420
bdd90d5e 3421 /* be aware of params.vlan when changing code here */
5727ef1b 3422
e35e4d28 3423 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 3424
5727ef1b
JB		 3425 if (params.vlan)
3426 dev_put(params.vlan);
5727ef1b
JB		 3427 return err;
3428}
3429
3430static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3431{
4c476991
JB		 3432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3433 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3434 u8 *mac_addr = NULL;
3435
3436 if (info->attrs[NL80211_ATTR_MAC])
3437 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3438
e80cf853 3439 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3440 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3441 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3442 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3443 return -EINVAL;
5727ef1b 3444
4c476991
JB		 3445 if (!rdev->ops->del_station)
3446 return -EOPNOTSUPP;
3b85875a 3447
e35e4d28 3448 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 3449}
3450
15e47304 3451static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3452 int flags, struct net_device *dev,
3453 u8 *dst, u8 *next_hop,
3454 struct mpath_info *pinfo)
3455{
3456 void *hdr;
3457 struct nlattr *pinfoattr;
3458
15e47304 3459 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3460 if (!hdr)
3461 return -1;
3462
9360ffd1
DM		 3463 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3464 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3465 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3466 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3467 goto nla_put_failure;
f5ea9120 3468
2ec600d6
LCC		 3469 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3470 if (!pinfoattr)
3471 goto nla_put_failure;
9360ffd1
DM		 3472 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3473 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3474 pinfo->frame_qlen))
3475 goto nla_put_failure;
3476 if (((pinfo->filled & MPATH_INFO_SN) &&
3477 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3478 ((pinfo->filled & MPATH_INFO_METRIC) &&
3479 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3480 pinfo->metric)) ||
3481 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3482 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3483 pinfo->exptime)) ||
3484 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3485 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3486 pinfo->flags)) ||
3487 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3488 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3489 pinfo->discovery_timeout)) ||
3490 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3491 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3492 pinfo->discovery_retries)))
3493 goto nla_put_failure;
2ec600d6
LCC		 3494
3495 nla_nest_end(msg, pinfoattr);
3496
3497 return genlmsg_end(msg, hdr);
3498
3499 nla_put_failure:
bc3ed28c
TG		 3500 genlmsg_cancel(msg, hdr);
3501 return -EMSGSIZE;
2ec600d6
LCC		 3502}
3503
3504static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3505 struct netlink_callback *cb)
2ec600d6 3506{
2ec600d6
LCC		 3507 struct mpath_info pinfo;
3508 struct cfg80211_registered_device *dev;
bba95fef 3509 struct net_device *netdev;
2ec600d6
LCC		 3510 u8 dst[ETH_ALEN];
3511 u8 next_hop[ETH_ALEN];
bba95fef 3512 int path_idx = cb->args[1];
2ec600d6 3513 int err;
2ec600d6 3514
67748893
JB		 3515 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3516 if (err)
3517 return err;
bba95fef
JB		 3518
3519 if (!dev->ops->dump_mpath) {
eec60b03 3520 err = -EOPNOTSUPP;
bba95fef
JB		 3521 goto out_err;
3522 }
3523
eec60b03
JM		 3524 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3525 err = -EOPNOTSUPP;
0448b5fc 3526 goto out_err;
eec60b03
JM		 3527 }
3528
bba95fef 3529 while (1) {
e35e4d28
HG		 3530 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3531 &pinfo);
bba95fef 3532 if (err == -ENOENT)
2ec600d6 3533 break;
bba95fef 3534 if (err)
3b85875a 3535 goto out_err;
2ec600d6 3536
15e47304 3537 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3538 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3539 netdev, dst, next_hop,
3540 &pinfo) < 0)
3541 goto out;
2ec600d6 3542
bba95fef 3543 path_idx++;
2ec600d6 3544 }
2ec600d6 3545
2ec600d6 3546
bba95fef
JB		 3547 out:
3548 cb->args[1] = path_idx;
3549 err = skb->len;
bba95fef 3550 out_err:
67748893 3551 nl80211_finish_netdev_dump(dev);
bba95fef 3552 return err;
2ec600d6
LCC		 3553}
3554
3555static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3556{
4c476991 3557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3558 int err;
4c476991 3559 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3560 struct mpath_info pinfo;
3561 struct sk_buff *msg;
3562 u8 *dst = NULL;
3563 u8 next_hop[ETH_ALEN];
3564
3565 memset(&pinfo, 0, sizeof(pinfo));
3566
3567 if (!info->attrs[NL80211_ATTR_MAC])
3568 return -EINVAL;
3569
3570 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3571
4c476991
JB		 3572 if (!rdev->ops->get_mpath)
3573 return -EOPNOTSUPP;
2ec600d6 3574
4c476991
JB		 3575 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3576 return -EOPNOTSUPP;
eec60b03 3577
e35e4d28 3578 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 3579 if (err)
4c476991 3580 return err;
2ec600d6 3581
fd2120ca 3582 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3583 if (!msg)
4c476991 3584 return -ENOMEM;
2ec600d6 3585
15e47304 3586 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3587 dev, dst, next_hop, &pinfo) < 0) {
3588 nlmsg_free(msg);
3589 return -ENOBUFS;
3590 }
3b85875a 3591
4c476991 3592 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3593}
3594
3595static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3596{
4c476991
JB		 3597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3598 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3599 u8 *dst = NULL;
3600 u8 *next_hop = NULL;
3601
3602 if (!info->attrs[NL80211_ATTR_MAC])
3603 return -EINVAL;
3604
3605 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3606 return -EINVAL;
3607
3608 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3609 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3610
4c476991
JB		 3611 if (!rdev->ops->change_mpath)
3612 return -EOPNOTSUPP;
35a8efe1 3613
4c476991
JB		 3614 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3615 return -EOPNOTSUPP;
2ec600d6 3616
e35e4d28 3617 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 3618}
4c476991 3619
2ec600d6
LCC		 3620static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3621{
4c476991
JB		 3622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3623 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3624 u8 *dst = NULL;
3625 u8 *next_hop = NULL;
3626
3627 if (!info->attrs[NL80211_ATTR_MAC])
3628 return -EINVAL;
3629
3630 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3631 return -EINVAL;
3632
3633 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3634 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3635
4c476991
JB		 3636 if (!rdev->ops->add_mpath)
3637 return -EOPNOTSUPP;
35a8efe1 3638
4c476991
JB		 3639 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3640 return -EOPNOTSUPP;
2ec600d6 3641
e35e4d28 3642 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 3643}
3644
3645static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3646{
4c476991
JB		 3647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3648 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3649 u8 *dst = NULL;
3650
3651 if (info->attrs[NL80211_ATTR_MAC])
3652 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3653
4c476991
JB		 3654 if (!rdev->ops->del_mpath)
3655 return -EOPNOTSUPP;
3b85875a 3656
e35e4d28 3657 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 3658}
3659
9f1ba906
JM		 3660static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3661{
4c476991
JB		 3662 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3663 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3664 struct bss_parameters params;
3665
3666 memset(&params, 0, sizeof(params));
3667 /* default to not changing parameters */
3668 params.use_cts_prot = -1;
3669 params.use_short_preamble = -1;
3670 params.use_short_slot_time = -1;
fd8aaaf3 3671 params.ap_isolate = -1;
50b12f59 3672 params.ht_opmode = -1;
53cabad7
JB		 3673 params.p2p_ctwindow = -1;
3674 params.p2p_opp_ps = -1;
9f1ba906
JM		 3675
3676 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3677 params.use_cts_prot =
3678 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3679 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3680 params.use_short_preamble =
3681 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3682 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3683 params.use_short_slot_time =
3684 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3685 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3686 params.basic_rates =
3687 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3688 params.basic_rates_len =
3689 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3690 }
fd8aaaf3
FF		 3691 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3692 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3693 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3694 params.ht_opmode =
3695 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3696
53cabad7
JB		 3697 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3698 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3699 return -EINVAL;
3700 params.p2p_ctwindow =
3701 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3702 if (params.p2p_ctwindow < 0)
3703 return -EINVAL;
3704 if (params.p2p_ctwindow != 0 &&
3705 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3706 return -EINVAL;
3707 }
3708
3709 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3710 u8 tmp;
3711
3712 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3713 return -EINVAL;
3714 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3715 if (tmp > 1)
3716 return -EINVAL;
3717 params.p2p_opp_ps = tmp;
3718 if (params.p2p_opp_ps &&
3719 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3720 return -EINVAL;
3721 }
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 */
458f4f9e 3790 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 3791 return -EINPROGRESS;
80778f18 3792
fe33eb39
LR		 3793 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3794 return -EINVAL;
b2e1b302
LR		 3795
3796 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3797
57b5ce07
LR		 3798 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3799 user_reg_hint_type =
3800 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3801 else
3802 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3803
3804 switch (user_reg_hint_type) {
3805 case NL80211_USER_REG_HINT_USER:
3806 case NL80211_USER_REG_HINT_CELL_BASE:
3807 break;
3808 default:
3809 return -EINVAL;
3810 }
3811
3812 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 3813
b2e1b302
LR		 3814 return r;
3815}
3816
24bdd9f4 3817static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3818 struct genl_info *info)
93da9cc1 3819{
4c476991 3820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3821 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3822 struct wireless_dev *wdev = dev->ieee80211_ptr;
3823 struct mesh_config cur_params;
3824 int err = 0;
93da9cc1 3825 void *hdr;
3826 struct nlattr *pinfoattr;
3827 struct sk_buff *msg;
3828
29cbe68c
JB		 3829 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3830 return -EOPNOTSUPP;
3831
24bdd9f4 3832 if (!rdev->ops->get_mesh_config)
4c476991 3833 return -EOPNOTSUPP;
f3f92586 3834
29cbe68c
JB		 3835 wdev_lock(wdev);
3836 /* If not connected, get default parameters */
3837 if (!wdev->mesh_id_len)
3838 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3839 else
e35e4d28 3840 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 3841 wdev_unlock(wdev);
3842
93da9cc1 3843 if (err)
4c476991 3844 return err;
93da9cc1 3845
3846 /* Draw up a netlink message to send back */
fd2120ca 3847 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3848 if (!msg)
3849 return -ENOMEM;
15e47304 3850 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 3851 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3852 if (!hdr)
efe1cf0c 3853 goto out;
24bdd9f4 3854 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3855 if (!pinfoattr)
3856 goto nla_put_failure;
9360ffd1
DM		 3857 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3858 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3859 cur_params.dot11MeshRetryTimeout) ||
3860 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3861 cur_params.dot11MeshConfirmTimeout) ||
3862 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3863 cur_params.dot11MeshHoldingTimeout) ||
3864 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3865 cur_params.dot11MeshMaxPeerLinks) ||
3866 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3867 cur_params.dot11MeshMaxRetries) ||
3868 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3869 cur_params.dot11MeshTTL) ||
3870 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3871 cur_params.element_ttl) ||
3872 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3873 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3874 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3875 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3876 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3877 cur_params.dot11MeshHWMPmaxPREQretries) ||
3878 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3879 cur_params.path_refresh_time) ||
3880 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3881 cur_params.min_discovery_timeout) ||
3882 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3883 cur_params.dot11MeshHWMPactivePathTimeout) ||
3884 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3885 cur_params.dot11MeshHWMPpreqMinInterval) ||
3886 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3887 cur_params.dot11MeshHWMPperrMinInterval) ||
3888 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3889 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3890 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3891 cur_params.dot11MeshHWMPRootMode) ||
3892 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3893 cur_params.dot11MeshHWMPRannInterval) ||
3894 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3895 cur_params.dot11MeshGateAnnouncementProtocol) ||
3896 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3897 cur_params.dot11MeshForwarding) ||
3898 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3899 cur_params.rssi_threshold) ||
3900 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3901 cur_params.ht_opmode) ||
3902 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3903 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3904 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3905 cur_params.dot11MeshHWMProotInterval) ||
3906 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3907 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3908 goto nla_put_failure;
93da9cc1 3909 nla_nest_end(msg, pinfoattr);
3910 genlmsg_end(msg, hdr);
4c476991 3911 return genlmsg_reply(msg, info);
93da9cc1 3912
3b85875a 3913 nla_put_failure:
93da9cc1 3914 genlmsg_cancel(msg, hdr);
efe1cf0c 3915 out:
d080e275 3916 nlmsg_free(msg);
4c476991 3917 return -ENOBUFS;
93da9cc1 3918}
3919
b54452b0 3920static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3921 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3922 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3923 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3924 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3925 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3926 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3927 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3928 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3929 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3930 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3931 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3932 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3933 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3934 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3935 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3936 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3937 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3938 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3939 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3940 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3941 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3942 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3943 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3944 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3945 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3946};
3947
c80d545d
JC		 3948static const struct nla_policy
3949 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3950 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3951 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3952 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3953 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3954 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3955 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3956 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3957};
3958
24bdd9f4 3959static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3960 struct mesh_config *cfg,
3961 u32 *mask_out)
93da9cc1 3962{
93da9cc1 3963 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3964 u32 mask = 0;
93da9cc1 3965
bd90fdcc
JB		 3966#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3967do {\
3968 if (table[attr_num]) {\
3969 cfg->param = nla_fn(table[attr_num]); \
3970 mask |= (1 << (attr_num - 1)); \
3971 } \
3972} while (0);\
3973
3974
24bdd9f4 3975 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3976 return -EINVAL;
3977 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3978 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3979 nl80211_meshconf_params_policy))
93da9cc1 3980 return -EINVAL;
3981
93da9cc1 3982 /* This makes sure that there aren't more than 32 mesh config
3983 * parameters (otherwise our bitfield scheme would not work.) */
3984 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3985
3986 /* Fill in the params struct */
93da9cc1 3987 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
a4f606ea
CYY		 3988 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3989 nla_get_u16);
93da9cc1 3990 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
a4f606ea
CYY		 3991 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3992 nla_get_u16);
93da9cc1 3993 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
a4f606ea
CYY		 3994 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3995 nla_get_u16);
93da9cc1 3996 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
a4f606ea
CYY		 3997 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3998 nla_get_u16);
93da9cc1 3999 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
a4f606ea
CYY		 4000 mask, NL80211_MESHCONF_MAX_RETRIES,
4001 nla_get_u8);
93da9cc1 4002 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
a4f606ea 4003 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21 4004 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
a4f606ea
CYY		 4005 mask, NL80211_MESHCONF_ELEMENT_TTL,
4006 nla_get_u8);
93da9cc1 4007 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
a4f606ea
CYY		 4008 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4009 nla_get_u8);
4010 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
4011 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4012 nla_get_u32);
93da9cc1 4013 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
a4f606ea
CYY		 4014 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4015 nla_get_u8);
93da9cc1 4016 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
a4f606ea
CYY		 4017 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4018 nla_get_u32);
93da9cc1 4019 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
a4f606ea
CYY		 4020 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4021 nla_get_u16);
4022 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
4023 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4024 nla_get_u32);
93da9cc1 4025 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
a4f606ea
CYY		 4026 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4027 nla_get_u16);
dca7e943 4028 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
a4f606ea
CYY		 4029 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4030 nla_get_u16);
93da9cc1 4031 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 4032 dot11MeshHWMPnetDiameterTraversalTime, mask,
4033 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4034 nla_get_u16);
4035 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
4036 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
4037 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
4038 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4039 nla_get_u16);
63c5723b 4040 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 4041 dot11MeshGateAnnouncementProtocol, mask,
4042 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4043 nla_get_u8);
94f90656 4044 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
a4f606ea
CYY		 4045 mask, NL80211_MESHCONF_FORWARDING,
4046 nla_get_u8);
55335137 4047 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
a4f606ea
CYY		 4048 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4049 nla_get_u32);
70c33eaa 4050 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
a4f606ea 4051 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4052 nla_get_u16);
4053 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4054 mask,
4055 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4056 nla_get_u32);
4057 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
4058 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4059 nla_get_u16);
4060 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4061 dot11MeshHWMPconfirmationInterval, mask,
4062 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4063 nla_get_u16);
bd90fdcc
JB		 4064 if (mask_out)
4065 *mask_out = mask;
c80d545d 4066
bd90fdcc
JB		 4067 return 0;
4068
4069#undef FILL_IN_MESH_PARAM_IF_SET
4070}
4071
c80d545d
JC		 4072static int nl80211_parse_mesh_setup(struct genl_info *info,
4073 struct mesh_setup *setup)
4074{
4075 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4076
4077 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4078 return -EINVAL;
4079 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4080 info->attrs[NL80211_ATTR_MESH_SETUP],
4081 nl80211_mesh_setup_params_policy))
4082 return -EINVAL;
4083
d299a1f2
JC		 4084 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4085 setup->sync_method =
4086 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4087 IEEE80211_SYNC_METHOD_VENDOR :
4088 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4089
c80d545d
JC		 4090 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4091 setup->path_sel_proto =
4092 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4093 IEEE80211_PATH_PROTOCOL_VENDOR :
4094 IEEE80211_PATH_PROTOCOL_HWMP;
4095
4096 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4097 setup->path_metric =
4098 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4099 IEEE80211_PATH_METRIC_VENDOR :
4100 IEEE80211_PATH_METRIC_AIRTIME;
4101
581a8b0f
JC		 4102
4103 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4104 struct nlattr *ieattr =
581a8b0f 4105 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4106 if (!is_valid_ie_attr(ieattr))
4107 return -EINVAL;
581a8b0f
JC		 4108 setup->ie = nla_data(ieattr);
4109 setup->ie_len = nla_len(ieattr);
c80d545d 4110 }
b130e5ce
JC		 4111 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4112 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4113
4114 return 0;
4115}
4116
24bdd9f4 4117static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4118 struct genl_info *info)
bd90fdcc
JB		 4119{
4120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4121 struct net_device *dev = info->user_ptr[1];
29cbe68c 4122 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4123 struct mesh_config cfg;
4124 u32 mask;
4125 int err;
4126
29cbe68c
JB		 4127 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4128 return -EOPNOTSUPP;
4129
24bdd9f4 4130 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4131 return -EOPNOTSUPP;
4132
24bdd9f4 4133 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4134 if (err)
4135 return err;
4136
29cbe68c
JB		 4137 wdev_lock(wdev);
4138 if (!wdev->mesh_id_len)
4139 err = -ENOLINK;
4140
4141 if (!err)
e35e4d28 4142 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4143
4144 wdev_unlock(wdev);
4145
4146 return err;
93da9cc1 4147}
4148
f130347c
LR		 4149static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4150{
458f4f9e 4151 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4152 struct sk_buff *msg;
4153 void *hdr = NULL;
4154 struct nlattr *nl_reg_rules;
4155 unsigned int i;
4156 int err = -EINVAL;
4157
a1794390 4158 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4159
4160 if (!cfg80211_regdomain)
4161 goto out;
4162
fd2120ca 4163 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4164 if (!msg) {
4165 err = -ENOBUFS;
4166 goto out;
4167 }
4168
15e47304 4169 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4170 NL80211_CMD_GET_REG);
4171 if (!hdr)
efe1cf0c 4172 goto put_failure;
f130347c 4173
57b5ce07
LR		 4174 if (reg_last_request_cell_base() &&
4175 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4176 NL80211_USER_REG_HINT_CELL_BASE))
4177 goto nla_put_failure;
4178
458f4f9e
JB		 4179 rcu_read_lock();
4180 regdom = rcu_dereference(cfg80211_regdomain);
4181
4182 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4183 (regdom->dfs_region &&
4184 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4185 goto nla_put_failure_rcu;
4186
f130347c
LR		 4187 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4188 if (!nl_reg_rules)
458f4f9e 4189 goto nla_put_failure_rcu;
f130347c 4190
458f4f9e 4191 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4192 struct nlattr *nl_reg_rule;
4193 const struct ieee80211_reg_rule *reg_rule;
4194 const struct ieee80211_freq_range *freq_range;
4195 const struct ieee80211_power_rule *power_rule;
4196
458f4f9e 4197 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4198 freq_range = &reg_rule->freq_range;
4199 power_rule = &reg_rule->power_rule;
4200
4201 nl_reg_rule = nla_nest_start(msg, i);
4202 if (!nl_reg_rule)
458f4f9e 4203 goto nla_put_failure_rcu;
f130347c 4204
9360ffd1
DM		 4205 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4206 reg_rule->flags) ||
4207 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4208 freq_range->start_freq_khz) ||
4209 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4210 freq_range->end_freq_khz) ||
4211 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4212 freq_range->max_bandwidth_khz) ||
4213 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4214 power_rule->max_antenna_gain) ||
4215 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4216 power_rule->max_eirp))
458f4f9e 4217 goto nla_put_failure_rcu;
f130347c
LR		 4218
4219 nla_nest_end(msg, nl_reg_rule);
4220 }
458f4f9e 4221 rcu_read_unlock();
f130347c
LR		 4222
4223 nla_nest_end(msg, nl_reg_rules);
4224
4225 genlmsg_end(msg, hdr);
134e6375 4226 err = genlmsg_reply(msg, info);
f130347c
LR		 4227 goto out;
4228
458f4f9e
JB		 4229nla_put_failure_rcu:
4230 rcu_read_unlock();
f130347c
LR		 4231nla_put_failure:
4232 genlmsg_cancel(msg, hdr);
efe1cf0c 4233put_failure:
d080e275 4234 nlmsg_free(msg);
f130347c
LR		 4235 err = -EMSGSIZE;
4236out:
a1794390 4237 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4238 return err;
4239}
4240
b2e1b302
LR		 4241static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4242{
4243 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4244 struct nlattr *nl_reg_rule;
4245 char *alpha2 = NULL;
4246 int rem_reg_rules = 0, r = 0;
4247 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4248 u8 dfs_region = 0;
b2e1b302
LR		 4249 struct ieee80211_regdomain *rd = NULL;
4250
4251 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4252 return -EINVAL;
4253
4254 if (!info->attrs[NL80211_ATTR_REG_RULES])
4255 return -EINVAL;
4256
4257 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4258
8b60b078
LR		 4259 if (info->attrs[NL80211_ATTR_DFS_REGION])
4260 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4261
b2e1b302 4262 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4263 rem_reg_rules) {
b2e1b302
LR		 4264 num_rules++;
4265 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4266 return -EINVAL;
b2e1b302
LR		 4267 }
4268
b2e1b302 4269 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4270 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4271
4272 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4273 if (!rd)
4274 return -ENOMEM;
b2e1b302
LR		 4275
4276 rd->n_reg_rules = num_rules;
4277 rd->alpha2[0] = alpha2[0];
4278 rd->alpha2[1] = alpha2[1];
4279
8b60b078
LR		 4280 /*
4281 * Disable DFS master mode if the DFS region was
4282 * not supported or known on this kernel.
4283 */
4284 if (reg_supported_dfs_region(dfs_region))
4285 rd->dfs_region = dfs_region;
4286
b2e1b302 4287 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4288 rem_reg_rules) {
b2e1b302 4289 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4290 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4291 reg_rule_policy);
b2e1b302
LR		 4292 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4293 if (r)
4294 goto bad_reg;
4295
4296 rule_idx++;
4297
d0e18f83
LR		 4298 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4299 r = -EINVAL;
b2e1b302 4300 goto bad_reg;
d0e18f83 4301 }
b2e1b302
LR		 4302 }
4303
6913b49a
JB		 4304 mutex_lock(&cfg80211_mutex);
4305
b2e1b302 4306 r = set_regdom(rd);
6913b49a 4307 /* set_regdom took ownership */
1a919318 4308 rd = NULL;
6913b49a 4309 mutex_unlock(&cfg80211_mutex);
b2e1b302 4310
d2372b31 4311 bad_reg:
b2e1b302 4312 kfree(rd);
d0e18f83 4313 return r;
b2e1b302
LR		 4314}
4315
83f5e2cf
JB		 4316static int validate_scan_freqs(struct nlattr *freqs)
4317{
4318 struct nlattr *attr1, *attr2;
4319 int n_channels = 0, tmp1, tmp2;
4320
4321 nla_for_each_nested(attr1, freqs, tmp1) {
4322 n_channels++;
4323 /*
4324 * Some hardware has a limited channel list for
4325 * scanning, and it is pretty much nonsensical
4326 * to scan for a channel twice, so disallow that
4327 * and don't require drivers to check that the
4328 * channel list they get isn't longer than what
4329 * they can scan, as long as they can scan all
4330 * the channels they registered at once.
4331 */
4332 nla_for_each_nested(attr2, freqs, tmp2)
4333 if (attr1 != attr2 &&
4334 nla_get_u32(attr1) == nla_get_u32(attr2))
4335 return 0;
4336 }
4337
4338 return n_channels;
4339}
4340
2a519311
JB		 4341static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4342{
4c476991 4343 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4344 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4345 struct cfg80211_scan_request *request;
2a519311
JB		 4346 struct nlattr *attr;
4347 struct wiphy *wiphy;
83f5e2cf 4348 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4349 size_t ie_len;
2a519311 4350
f4a11bb0
JB		 4351 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4352 return -EINVAL;
4353
79c97e97 4354 wiphy = &rdev->wiphy;
2a519311 4355
4c476991
JB		 4356 if (!rdev->ops->scan)
4357 return -EOPNOTSUPP;
2a519311 4358
4c476991
JB		 4359 if (rdev->scan_req)
4360 return -EBUSY;
2a519311
JB		 4361
4362 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4363 n_channels = validate_scan_freqs(
4364 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4365 if (!n_channels)
4366 return -EINVAL;
2a519311 4367 } else {
34850ab2 4368 enum ieee80211_band band;
83f5e2cf
JB		 4369 n_channels = 0;
4370
2a519311
JB		 4371 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4372 if (wiphy->bands[band])
4373 n_channels += wiphy->bands[band]->n_channels;
4374 }
4375
4376 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4377 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4378 n_ssids++;
4379
4c476991
JB		 4380 if (n_ssids > wiphy->max_scan_ssids)
4381 return -EINVAL;
2a519311 4382
70692ad2
JM		 4383 if (info->attrs[NL80211_ATTR_IE])
4384 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4385 else
4386 ie_len = 0;
4387
4c476991
JB		 4388 if (ie_len > wiphy->max_scan_ie_len)
4389 return -EINVAL;
18a83659 4390
2a519311 4391 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4392 + sizeof(*request->ssids) * n_ssids
4393 + sizeof(*request->channels) * n_channels
70692ad2 4394 + ie_len, GFP_KERNEL);
4c476991
JB		 4395 if (!request)
4396 return -ENOMEM;
2a519311 4397
2a519311 4398 if (n_ssids)
5ba63533 4399 request->ssids = (void *)&request->channels[n_channels];
2a519311 4400 request->n_ssids = n_ssids;
70692ad2
JM		 4401 if (ie_len) {
4402 if (request->ssids)
4403 request->ie = (void *)(request->ssids + n_ssids);
4404 else
4405 request->ie = (void *)(request->channels + n_channels);
4406 }
2a519311 4407
584991dc 4408 i = 0;
2a519311
JB		 4409 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4410 /* user specified, bail out if channel not found */
2a519311 4411 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4412 struct ieee80211_channel *chan;
4413
4414 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4415
4416 if (!chan) {
2a519311
JB		 4417 err = -EINVAL;
4418 goto out_free;
4419 }
584991dc
JB		 4420
4421 /* ignore disabled channels */
4422 if (chan->flags & IEEE80211_CHAN_DISABLED)
4423 continue;
4424
4425 request->channels[i] = chan;
2a519311
JB		 4426 i++;
4427 }
4428 } else {
34850ab2
JB		 4429 enum ieee80211_band band;
4430
2a519311 4431 /* all channels */
2a519311
JB		 4432 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4433 int j;
4434 if (!wiphy->bands[band])
4435 continue;
4436 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4437 struct ieee80211_channel *chan;
4438
4439 chan = &wiphy->bands[band]->channels[j];
4440
4441 if (chan->flags & IEEE80211_CHAN_DISABLED)
4442 continue;
4443
4444 request->channels[i] = chan;
2a519311
JB		 4445 i++;
4446 }
4447 }
4448 }
4449
584991dc
JB		 4450 if (!i) {
4451 err = -EINVAL;
4452 goto out_free;
4453 }
4454
4455 request->n_channels = i;
4456
2a519311
JB		 4457 i = 0;
4458 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4459 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4460 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4461 err = -EINVAL;
4462 goto out_free;
4463 }
57a27e1d 4464 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4465 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4466 i++;
4467 }
4468 }
4469
70692ad2
JM		 4470 if (info->attrs[NL80211_ATTR_IE]) {
4471 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4472 memcpy((void *)request->ie,
4473 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4474 request->ie_len);
4475 }
4476
34850ab2 4477 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4478 if (wiphy->bands[i])
4479 request->rates[i] =
4480 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4481
4482 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4483 nla_for_each_nested(attr,
4484 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4485 tmp) {
4486 enum ieee80211_band band = nla_type(attr);
4487
84404623 4488 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4489 err = -EINVAL;
4490 goto out_free;
4491 }
4492 err = ieee80211_get_ratemask(wiphy->bands[band],
4493 nla_data(attr),
4494 nla_len(attr),
4495 &request->rates[band]);
4496 if (err)
4497 goto out_free;
4498 }
4499 }
4500
46856bbf 4501 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4502 request->flags = nla_get_u32(
4503 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4504 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4505 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4506 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4507 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4508 err = -EOPNOTSUPP;
4509 goto out_free;
4510 }
4511 }
ed473771 4512
e9f935e3
RM		 4513 request->no_cck =
4514 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4515
fd014284 4516 request->wdev = wdev;
79c97e97 4517 request->wiphy = &rdev->wiphy;
15d6030b 4518 request->scan_start = jiffies;
2a519311 4519
79c97e97 4520 rdev->scan_req = request;
e35e4d28 4521 err = rdev_scan(rdev, request);
2a519311 4522
463d0183 4523 if (!err) {
fd014284
JB		 4524 nl80211_send_scan_start(rdev, wdev);
4525 if (wdev->netdev)
4526 dev_hold(wdev->netdev);
4c476991 4527 } else {
2a519311 4528 out_free:
79c97e97 4529 rdev->scan_req = NULL;
2a519311
JB		 4530 kfree(request);
4531 }
3b85875a 4532
2a519311
JB		 4533 return err;
4534}
4535
807f8a8c
LC		 4536static int nl80211_start_sched_scan(struct sk_buff *skb,
4537 struct genl_info *info)
4538{
4539 struct cfg80211_sched_scan_request *request;
4540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4541 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4542 struct nlattr *attr;
4543 struct wiphy *wiphy;
a1f1c21c 4544 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4545 u32 interval;
807f8a8c
LC		 4546 enum ieee80211_band band;
4547 size_t ie_len;
a1f1c21c 4548 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4549
4550 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4551 !rdev->ops->sched_scan_start)
4552 return -EOPNOTSUPP;
4553
4554 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4555 return -EINVAL;
4556
bbe6ad6d
LC		 4557 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4558 return -EINVAL;
4559
4560 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4561 if (interval == 0)
4562 return -EINVAL;
4563
807f8a8c
LC		 4564 wiphy = &rdev->wiphy;
4565
4566 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4567 n_channels = validate_scan_freqs(
4568 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4569 if (!n_channels)
4570 return -EINVAL;
4571 } else {
4572 n_channels = 0;
4573
4574 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4575 if (wiphy->bands[band])
4576 n_channels += wiphy->bands[band]->n_channels;
4577 }
4578
4579 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4580 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4581 tmp)
4582 n_ssids++;
4583
93b6aa69 4584 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4585 return -EINVAL;
4586
a1f1c21c
LC		 4587 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4588 nla_for_each_nested(attr,
4589 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4590 tmp)
4591 n_match_sets++;
4592
4593 if (n_match_sets > wiphy->max_match_sets)
4594 return -EINVAL;
4595
807f8a8c
LC		 4596 if (info->attrs[NL80211_ATTR_IE])
4597 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4598 else
4599 ie_len = 0;
4600
5a865bad 4601 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4602 return -EINVAL;
4603
c10841ca
LC		 4604 mutex_lock(&rdev->sched_scan_mtx);
4605
4606 if (rdev->sched_scan_req) {
4607 err = -EINPROGRESS;
4608 goto out;
4609 }
4610
807f8a8c 4611 request = kzalloc(sizeof(*request)
a2cd43c5 4612 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4613 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4614 + sizeof(*request->channels) * n_channels
807f8a8c 4615 + ie_len, GFP_KERNEL);
c10841ca
LC		 4616 if (!request) {
4617 err = -ENOMEM;
4618 goto out;
4619 }
807f8a8c
LC		 4620
4621 if (n_ssids)
4622 request->ssids = (void *)&request->channels[n_channels];
4623 request->n_ssids = n_ssids;
4624 if (ie_len) {
4625 if (request->ssids)
4626 request->ie = (void *)(request->ssids + n_ssids);
4627 else
4628 request->ie = (void *)(request->channels + n_channels);
4629 }
4630
a1f1c21c
LC		 4631 if (n_match_sets) {
4632 if (request->ie)
4633 request->match_sets = (void *)(request->ie + ie_len);
4634 else if (request->ssids)
4635 request->match_sets =
4636 (void *)(request->ssids + n_ssids);
4637 else
4638 request->match_sets =
4639 (void *)(request->channels + n_channels);
4640 }
4641 request->n_match_sets = n_match_sets;
4642
807f8a8c
LC		 4643 i = 0;
4644 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4645 /* user specified, bail out if channel not found */
4646 nla_for_each_nested(attr,
4647 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4648 tmp) {
4649 struct ieee80211_channel *chan;
4650
4651 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4652
4653 if (!chan) {
4654 err = -EINVAL;
4655 goto out_free;
4656 }
4657
4658 /* ignore disabled channels */
4659 if (chan->flags & IEEE80211_CHAN_DISABLED)
4660 continue;
4661
4662 request->channels[i] = chan;
4663 i++;
4664 }
4665 } else {
4666 /* all channels */
4667 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4668 int j;
4669 if (!wiphy->bands[band])
4670 continue;
4671 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4672 struct ieee80211_channel *chan;
4673
4674 chan = &wiphy->bands[band]->channels[j];
4675
4676 if (chan->flags & IEEE80211_CHAN_DISABLED)
4677 continue;
4678
4679 request->channels[i] = chan;
4680 i++;
4681 }
4682 }
4683 }
4684
4685 if (!i) {
4686 err = -EINVAL;
4687 goto out_free;
4688 }
4689
4690 request->n_channels = i;
4691
4692 i = 0;
4693 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4694 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4695 tmp) {
57a27e1d 4696 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4697 err = -EINVAL;
4698 goto out_free;
4699 }
57a27e1d 4700 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4701 memcpy(request->ssids[i].ssid, nla_data(attr),
4702 nla_len(attr));
807f8a8c
LC		 4703 i++;
4704 }
4705 }
4706
a1f1c21c
LC		 4707 i = 0;
4708 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4709 nla_for_each_nested(attr,
4710 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4711 tmp) {
88e920b4 4712 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4713
4714 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4715 nla_data(attr), nla_len(attr),
4716 nl80211_match_policy);
4a4ab0d7 4717 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4718 if (ssid) {
4719 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4720 err = -EINVAL;
4721 goto out_free;
4722 }
4723 memcpy(request->match_sets[i].ssid.ssid,
4724 nla_data(ssid), nla_len(ssid));
4725 request->match_sets[i].ssid.ssid_len =
4726 nla_len(ssid);
4727 }
88e920b4
TP		 4728 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4729 if (rssi)
4730 request->rssi_thold = nla_get_u32(rssi);
4731 else
4732 request->rssi_thold =
4733 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4734 i++;
4735 }
4736 }
4737
807f8a8c
LC		 4738 if (info->attrs[NL80211_ATTR_IE]) {
4739 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4740 memcpy((void *)request->ie,
4741 nla_data(info->attrs[NL80211_ATTR_IE]),
4742 request->ie_len);
4743 }
4744
46856bbf 4745 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4746 request->flags = nla_get_u32(
4747 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4748 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4749 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4750 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4751 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4752 err = -EOPNOTSUPP;
4753 goto out_free;
4754 }
4755 }
ed473771 4756
807f8a8c
LC		 4757 request->dev = dev;
4758 request->wiphy = &rdev->wiphy;
bbe6ad6d 4759 request->interval = interval;
15d6030b 4760 request->scan_start = jiffies;
807f8a8c 4761
e35e4d28 4762 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 4763 if (!err) {
4764 rdev->sched_scan_req = request;
4765 nl80211_send_sched_scan(rdev, dev,
4766 NL80211_CMD_START_SCHED_SCAN);
4767 goto out;
4768 }
4769
4770out_free:
4771 kfree(request);
4772out:
c10841ca 4773 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4774 return err;
4775}
4776
4777static int nl80211_stop_sched_scan(struct sk_buff *skb,
4778 struct genl_info *info)
4779{
4780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4781 int err;
807f8a8c
LC		 4782
4783 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4784 !rdev->ops->sched_scan_stop)
4785 return -EOPNOTSUPP;
4786
c10841ca
LC		 4787 mutex_lock(&rdev->sched_scan_mtx);
4788 err = __cfg80211_stop_sched_scan(rdev, false);
4789 mutex_unlock(&rdev->sched_scan_mtx);
4790
4791 return err;
807f8a8c
LC		 4792}
4793
9720bb3a
JB		 4794static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4795 u32 seq, int flags,
2a519311 4796 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4797 struct wireless_dev *wdev,
4798 struct cfg80211_internal_bss *intbss)
2a519311 4799{
48ab905d 4800 struct cfg80211_bss *res = &intbss->pub;
9caf0364 4801 const struct cfg80211_bss_ies *ies;
2a519311
JB		 4802 void *hdr;
4803 struct nlattr *bss;
48ab905d
JB		 4804
4805 ASSERT_WDEV_LOCK(wdev);
2a519311 4806
15e47304 4807 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 4808 NL80211_CMD_NEW_SCAN_RESULTS);
4809 if (!hdr)
4810 return -1;
4811
9720bb3a
JB		 4812 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4813
9360ffd1
DM		 4814 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4815 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4816 goto nla_put_failure;
2a519311
JB		 4817
4818 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4819 if (!bss)
4820 goto nla_put_failure;
9360ffd1 4821 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 4822 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 4823 goto nla_put_failure;
9caf0364
JB		 4824
4825 rcu_read_lock();
4826 ies = rcu_dereference(res->ies);
4827 if (ies && ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4828 ies->len, ies->data)) {
4829 rcu_read_unlock();
4830 goto nla_put_failure;
4831 }
4832 ies = rcu_dereference(res->beacon_ies);
4833 if (ies && ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
4834 ies->len, ies->data)) {
4835 rcu_read_unlock();
4836 goto nla_put_failure;
4837 }
4838 rcu_read_unlock();
4839
9360ffd1
DM		 4840 if (res->tsf &&
4841 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4842 goto nla_put_failure;
4843 if (res->beacon_interval &&
4844 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4845 goto nla_put_failure;
4846 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4847 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4848 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4849 jiffies_to_msecs(jiffies - intbss->ts)))
4850 goto nla_put_failure;
2a519311 4851
77965c97 4852 switch (rdev->wiphy.signal_type) {
2a519311 4853 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4854 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4855 goto nla_put_failure;
2a519311
JB		 4856 break;
4857 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4858 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4859 goto nla_put_failure;
2a519311
JB		 4860 break;
4861 default:
4862 break;
4863 }
4864
48ab905d 4865 switch (wdev->iftype) {
074ac8df 4866 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4867 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4868 if (intbss == wdev->current_bss &&
4869 nla_put_u32(msg, NL80211_BSS_STATUS,
4870 NL80211_BSS_STATUS_ASSOCIATED))
4871 goto nla_put_failure;
48ab905d
JB		 4872 break;
4873 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4874 if (intbss == wdev->current_bss &&
4875 nla_put_u32(msg, NL80211_BSS_STATUS,
4876 NL80211_BSS_STATUS_IBSS_JOINED))
4877 goto nla_put_failure;
48ab905d
JB		 4878 break;
4879 default:
4880 break;
4881 }
4882
2a519311
JB		 4883 nla_nest_end(msg, bss);
4884
4885 return genlmsg_end(msg, hdr);
4886
4887 nla_put_failure:
4888 genlmsg_cancel(msg, hdr);
4889 return -EMSGSIZE;
4890}
4891
4892static int nl80211_dump_scan(struct sk_buff *skb,
4893 struct netlink_callback *cb)
4894{
48ab905d
JB		 4895 struct cfg80211_registered_device *rdev;
4896 struct net_device *dev;
2a519311 4897 struct cfg80211_internal_bss *scan;
48ab905d 4898 struct wireless_dev *wdev;
2a519311
JB		 4899 int start = cb->args[1], idx = 0;
4900 int err;
4901
67748893
JB		 4902 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4903 if (err)
4904 return err;
2a519311 4905
48ab905d 4906 wdev = dev->ieee80211_ptr;
2a519311 4907
48ab905d
JB		 4908 wdev_lock(wdev);
4909 spin_lock_bh(&rdev->bss_lock);
4910 cfg80211_bss_expire(rdev);
4911
9720bb3a
JB		 4912 cb->seq = rdev->bss_generation;
4913
48ab905d 4914 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4915 if (++idx <= start)
4916 continue;
9720bb3a 4917 if (nl80211_send_bss(skb, cb,
2a519311 4918 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4919 rdev, wdev, scan) < 0) {
2a519311 4920 idx--;
67748893 4921 break;
2a519311
JB		 4922 }
4923 }
4924
48ab905d
JB		 4925 spin_unlock_bh(&rdev->bss_lock);
4926 wdev_unlock(wdev);
2a519311
JB		 4927
4928 cb->args[1] = idx;
67748893 4929 nl80211_finish_netdev_dump(rdev);
2a519311 4930
67748893 4931 return skb->len;
2a519311
JB		 4932}
4933
15e47304 4934static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 4935 int flags, struct net_device *dev,
4936 struct survey_info *survey)
4937{
4938 void *hdr;
4939 struct nlattr *infoattr;
4940
15e47304 4941 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 4942 NL80211_CMD_NEW_SURVEY_RESULTS);
4943 if (!hdr)
4944 return -ENOMEM;
4945
9360ffd1
DM		 4946 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4947 goto nla_put_failure;
61fa713c
HS		 4948
4949 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4950 if (!infoattr)
4951 goto nla_put_failure;
4952
9360ffd1
DM		 4953 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4954 survey->channel->center_freq))
4955 goto nla_put_failure;
4956
4957 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4958 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4959 goto nla_put_failure;
4960 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4961 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4962 goto nla_put_failure;
4963 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4964 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4965 survey->channel_time))
4966 goto nla_put_failure;
4967 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4968 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4969 survey->channel_time_busy))
4970 goto nla_put_failure;
4971 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4972 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4973 survey->channel_time_ext_busy))
4974 goto nla_put_failure;
4975 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4976 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4977 survey->channel_time_rx))
4978 goto nla_put_failure;
4979 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4980 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4981 survey->channel_time_tx))
4982 goto nla_put_failure;
61fa713c
HS		 4983
4984 nla_nest_end(msg, infoattr);
4985
4986 return genlmsg_end(msg, hdr);
4987
4988 nla_put_failure:
4989 genlmsg_cancel(msg, hdr);
4990 return -EMSGSIZE;
4991}
4992
4993static int nl80211_dump_survey(struct sk_buff *skb,
4994 struct netlink_callback *cb)
4995{
4996 struct survey_info survey;
4997 struct cfg80211_registered_device *dev;
4998 struct net_device *netdev;
61fa713c
HS		 4999 int survey_idx = cb->args[1];
5000 int res;
5001
67748893
JB		 5002 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5003 if (res)
5004 return res;
61fa713c
HS		 5005
5006 if (!dev->ops->dump_survey) {
5007 res = -EOPNOTSUPP;
5008 goto out_err;
5009 }
5010
5011 while (1) {
180cdc79
LR		 5012 struct ieee80211_channel *chan;
5013
e35e4d28 5014 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5015 if (res == -ENOENT)
5016 break;
5017 if (res)
5018 goto out_err;
5019
180cdc79
LR		 5020 /* Survey without a channel doesn't make sense */
5021 if (!survey.channel) {
5022 res = -EINVAL;
5023 goto out;
5024 }
5025
5026 chan = ieee80211_get_channel(&dev->wiphy,
5027 survey.channel->center_freq);
5028 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5029 survey_idx++;
5030 continue;
5031 }
5032
61fa713c 5033 if (nl80211_send_survey(skb,
15e47304 5034 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5035 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5036 netdev,
5037 &survey) < 0)
5038 goto out;
5039 survey_idx++;
5040 }
5041
5042 out:
5043 cb->args[1] = survey_idx;
5044 res = skb->len;
5045 out_err:
67748893 5046 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5047 return res;
5048}
5049
b23aa676
SO		 5050static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5051{
5052 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5053 NL80211_WPA_VERSION_2));
5054}
5055
636a5d36
JM		 5056static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5057{
4c476991
JB		 5058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5059 struct net_device *dev = info->user_ptr[1];
19957bb3 5060 struct ieee80211_channel *chan;
e39e5b5e
JM		 5061 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5062 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5063 enum nl80211_auth_type auth_type;
fffd0934 5064 struct key_parse key;
d5cdfacb 5065 bool local_state_change;
636a5d36 5066
f4a11bb0
JB		 5067 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5068 return -EINVAL;
5069
5070 if (!info->attrs[NL80211_ATTR_MAC])
5071 return -EINVAL;
5072
1778092e
JM		 5073 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5074 return -EINVAL;
5075
19957bb3
JB		 5076 if (!info->attrs[NL80211_ATTR_SSID])
5077 return -EINVAL;
5078
5079 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5080 return -EINVAL;
5081
fffd0934
JB		 5082 err = nl80211_parse_key(info, &key);
5083 if (err)
5084 return err;
5085
5086 if (key.idx >= 0) {
e31b8213
JB		 5087 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5088 return -EINVAL;
fffd0934
JB		 5089 if (!key.p.key || !key.p.key_len)
5090 return -EINVAL;
5091 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5092 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5093 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5094 key.p.key_len != WLAN_KEY_LEN_WEP104))
5095 return -EINVAL;
5096 if (key.idx > 4)
5097 return -EINVAL;
5098 } else {
5099 key.p.key_len = 0;
5100 key.p.key = NULL;
5101 }
5102
afea0b7a
JB		 5103 if (key.idx >= 0) {
5104 int i;
5105 bool ok = false;
5106 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5107 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5108 ok = true;
5109 break;
5110 }
5111 }
4c476991
JB		 5112 if (!ok)
5113 return -EINVAL;
afea0b7a
JB		 5114 }
5115
4c476991
JB		 5116 if (!rdev->ops->auth)
5117 return -EOPNOTSUPP;
636a5d36 5118
074ac8df 5119 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5120 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5121 return -EOPNOTSUPP;
eec60b03 5122
19957bb3 5123 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5124 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5125 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5126 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5127 return -EINVAL;
636a5d36 5128
19957bb3
JB		 5129 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5130 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5131
5132 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5133 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5134 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5135 }
5136
19957bb3 5137 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5138 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5139 return -EINVAL;
636a5d36 5140
e39e5b5e
JM		 5141 if (auth_type == NL80211_AUTHTYPE_SAE &&
5142 !info->attrs[NL80211_ATTR_SAE_DATA])
5143 return -EINVAL;
5144
5145 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5146 if (auth_type != NL80211_AUTHTYPE_SAE)
5147 return -EINVAL;
5148 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5149 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5150 /* need to include at least Auth Transaction and Status Code */
5151 if (sae_data_len < 4)
5152 return -EINVAL;
5153 }
5154
d5cdfacb
JM		 5155 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5156
95de817b
JB		 5157 /*
5158 * Since we no longer track auth state, ignore
5159 * requests to only change local state.
5160 */
5161 if (local_state_change)
5162 return 0;
5163
4c476991
JB		 5164 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5165 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5166 key.p.key, key.p.key_len, key.idx,
5167 sae_data, sae_data_len);
636a5d36
JM		 5168}
5169
c0692b8f
JB		 5170static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5171 struct genl_info *info,
3dc27d25
JB		 5172 struct cfg80211_crypto_settings *settings,
5173 int cipher_limit)
b23aa676 5174{
c0b2bbd8
JB		 5175 memset(settings, 0, sizeof(*settings));
5176
b23aa676
SO		 5177 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5178
c0692b8f
JB		 5179 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5180 u16 proto;
5181 proto = nla_get_u16(
5182 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5183 settings->control_port_ethertype = cpu_to_be16(proto);
5184 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5185 proto != ETH_P_PAE)
5186 return -EINVAL;
5187 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5188 settings->control_port_no_encrypt = true;
5189 } else
5190 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5191
b23aa676
SO		 5192 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5193 void *data;
5194 int len, i;
5195
5196 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5197 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5198 settings->n_ciphers_pairwise = len / sizeof(u32);
5199
5200 if (len % sizeof(u32))
5201 return -EINVAL;
5202
3dc27d25 5203 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5204 return -EINVAL;
5205
5206 memcpy(settings->ciphers_pairwise, data, len);
5207
5208 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5209 if (!cfg80211_supported_cipher_suite(
5210 &rdev->wiphy,
b23aa676
SO		 5211 settings->ciphers_pairwise[i]))
5212 return -EINVAL;
5213 }
5214
5215 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5216 settings->cipher_group =
5217 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5218 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5219 settings->cipher_group))
b23aa676
SO		 5220 return -EINVAL;
5221 }
5222
5223 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5224 settings->wpa_versions =
5225 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5226 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5227 return -EINVAL;
5228 }
5229
5230 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5231 void *data;
6d30240e 5232 int len;
b23aa676
SO		 5233
5234 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5235 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5236 settings->n_akm_suites = len / sizeof(u32);
5237
5238 if (len % sizeof(u32))
5239 return -EINVAL;
5240
1b9ca027
JM		 5241 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5242 return -EINVAL;
5243
b23aa676 5244 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5245 }
5246
5247 return 0;
5248}
5249
636a5d36
JM		 5250static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5251{
4c476991
JB		 5252 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5253 struct net_device *dev = info->user_ptr[1];
19957bb3 5254 struct cfg80211_crypto_settings crypto;
f444de05 5255 struct ieee80211_channel *chan;
3e5d7649 5256 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5257 int err, ssid_len, ie_len = 0;
5258 bool use_mfp = false;
7e7c8926
BG		 5259 u32 flags = 0;
5260 struct ieee80211_ht_cap *ht_capa = NULL;
5261 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5262
f4a11bb0
JB		 5263 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5264 return -EINVAL;
5265
5266 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5267 !info->attrs[NL80211_ATTR_SSID] ||
5268 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5269 return -EINVAL;
5270
4c476991
JB		 5271 if (!rdev->ops->assoc)
5272 return -EOPNOTSUPP;
636a5d36 5273
074ac8df 5274 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5275 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5276 return -EOPNOTSUPP;
eec60b03 5277
19957bb3 5278 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5279
19957bb3
JB		 5280 chan = ieee80211_get_channel(&rdev->wiphy,
5281 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5282 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5283 return -EINVAL;
636a5d36 5284
19957bb3
JB		 5285 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5286 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5287
5288 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5289 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5290 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5291 }
5292
dc6382ce 5293 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5294 enum nl80211_mfp mfp =
dc6382ce 5295 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5296 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5297 use_mfp = true;
4c476991
JB		 5298 else if (mfp != NL80211_MFP_NO)
5299 return -EINVAL;
dc6382ce
JM		 5300 }
5301
3e5d7649
JB		 5302 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5303 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5304
7e7c8926
BG		 5305 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5306 flags |= ASSOC_REQ_DISABLE_HT;
5307
5308 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5309 ht_capa_mask =
5310 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5311
5312 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5313 if (!ht_capa_mask)
5314 return -EINVAL;
5315 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5316 }
5317
c0692b8f 5318 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5319 if (!err)
3e5d7649
JB		 5320 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5321 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5322 &crypto, flags, ht_capa,
5323 ht_capa_mask);
636a5d36 5324
636a5d36
JM		 5325 return err;
5326}
5327
5328static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5329{
4c476991
JB		 5330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5331 struct net_device *dev = info->user_ptr[1];
19957bb3 5332 const u8 *ie = NULL, *bssid;
4c476991 5333 int ie_len = 0;
19957bb3 5334 u16 reason_code;
d5cdfacb 5335 bool local_state_change;
636a5d36 5336
f4a11bb0
JB		 5337 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5338 return -EINVAL;
5339
5340 if (!info->attrs[NL80211_ATTR_MAC])
5341 return -EINVAL;
5342
5343 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5344 return -EINVAL;
5345
4c476991
JB		 5346 if (!rdev->ops->deauth)
5347 return -EOPNOTSUPP;
636a5d36 5348
074ac8df 5349 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5350 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5351 return -EOPNOTSUPP;
eec60b03 5352
19957bb3 5353 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5354
19957bb3
JB		 5355 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5356 if (reason_code == 0) {
f4a11bb0 5357 /* Reason Code 0 is reserved */
4c476991 5358 return -EINVAL;
255e737e 5359 }
636a5d36
JM		 5360
5361 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5362 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5363 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5364 }
5365
d5cdfacb
JM		 5366 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5367
4c476991
JB		 5368 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5369 local_state_change);
636a5d36
JM		 5370}
5371
5372static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5373{
4c476991
JB		 5374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5375 struct net_device *dev = info->user_ptr[1];
19957bb3 5376 const u8 *ie = NULL, *bssid;
4c476991 5377 int ie_len = 0;
19957bb3 5378 u16 reason_code;
d5cdfacb 5379 bool local_state_change;
636a5d36 5380
f4a11bb0
JB		 5381 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5382 return -EINVAL;
5383
5384 if (!info->attrs[NL80211_ATTR_MAC])
5385 return -EINVAL;
5386
5387 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5388 return -EINVAL;
5389
4c476991
JB		 5390 if (!rdev->ops->disassoc)
5391 return -EOPNOTSUPP;
636a5d36 5392
074ac8df 5393 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5394 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5395 return -EOPNOTSUPP;
eec60b03 5396
19957bb3 5397 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5398
19957bb3
JB		 5399 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5400 if (reason_code == 0) {
f4a11bb0 5401 /* Reason Code 0 is reserved */
4c476991 5402 return -EINVAL;
255e737e 5403 }
636a5d36
JM		 5404
5405 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5406 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5407 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5408 }
5409
d5cdfacb
JM		 5410 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5411
4c476991
JB		 5412 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5413 local_state_change);
636a5d36
JM		 5414}
5415
dd5b4cc7
FF		 5416static bool
5417nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5418 int mcast_rate[IEEE80211_NUM_BANDS],
5419 int rateval)
5420{
5421 struct wiphy *wiphy = &rdev->wiphy;
5422 bool found = false;
5423 int band, i;
5424
5425 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5426 struct ieee80211_supported_band *sband;
5427
5428 sband = wiphy->bands[band];
5429 if (!sband)
5430 continue;
5431
5432 for (i = 0; i < sband->n_bitrates; i++) {
5433 if (sband->bitrates[i].bitrate == rateval) {
5434 mcast_rate[band] = i + 1;
5435 found = true;
5436 break;
5437 }
5438 }
5439 }
5440
5441 return found;
5442}
5443
04a773ad
JB		 5444static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5445{
4c476991
JB		 5446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5447 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5448 struct cfg80211_ibss_params ibss;
5449 struct wiphy *wiphy;
fffd0934 5450 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5451 int err;
5452
8e30bc55
JB		 5453 memset(&ibss, 0, sizeof(ibss));
5454
04a773ad
JB		 5455 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5456 return -EINVAL;
5457
683b6d3b 5458 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 5459 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5460 return -EINVAL;
5461
8e30bc55
JB		 5462 ibss.beacon_interval = 100;
5463
5464 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5465 ibss.beacon_interval =
5466 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5467 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5468 return -EINVAL;
5469 }
5470
4c476991
JB		 5471 if (!rdev->ops->join_ibss)
5472 return -EOPNOTSUPP;
04a773ad 5473
4c476991
JB		 5474 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5475 return -EOPNOTSUPP;
04a773ad 5476
79c97e97 5477 wiphy = &rdev->wiphy;
04a773ad 5478
39193498 5479 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5480 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5481
5482 if (!is_valid_ether_addr(ibss.bssid))
5483 return -EINVAL;
5484 }
04a773ad
JB		 5485 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5486 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5487
5488 if (info->attrs[NL80211_ATTR_IE]) {
5489 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5490 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5491 }
5492
683b6d3b
JB		 5493 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5494 if (err)
5495 return err;
04a773ad 5496
683b6d3b 5497 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 5498 return -EINVAL;
5499
db9c64cf
JB		 5500 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5501 return -EINVAL;
5502 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5503 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 5504 return -EINVAL;
db9c64cf 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 6531static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 6532 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 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
d9d8b019 6538 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 6539 return -EINVAL;
6540
6541 wdev = dev->ieee80211_ptr;
6542
6543 if (!rdev->ops->set_cqm_txe_config)
6544 return -EOPNOTSUPP;
6545
6546 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6547 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6548 return -EOPNOTSUPP;
6549
e35e4d28 6550 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 6551}
6552
d6dc1a38
JO		 6553static int nl80211_set_cqm_rssi(struct genl_info *info,
6554 s32 threshold, u32 hysteresis)
6555{
4c476991 6556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6557 struct wireless_dev *wdev;
4c476991 6558 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6559
6560 if (threshold > 0)
6561 return -EINVAL;
6562
d6dc1a38
JO		 6563 wdev = dev->ieee80211_ptr;
6564
4c476991
JB		 6565 if (!rdev->ops->set_cqm_rssi_config)
6566 return -EOPNOTSUPP;
d6dc1a38 6567
074ac8df 6568 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6569 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6570 return -EOPNOTSUPP;
d6dc1a38 6571
e35e4d28 6572 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 6573}
6574
6575static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6576{
6577 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6578 struct nlattr *cqm;
6579 int err;
6580
6581 cqm = info->attrs[NL80211_ATTR_CQM];
6582 if (!cqm) {
6583 err = -EINVAL;
6584 goto out;
6585 }
6586
6587 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6588 nl80211_attr_cqm_policy);
6589 if (err)
6590 goto out;
6591
6592 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6593 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6594 s32 threshold;
6595 u32 hysteresis;
6596 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6597 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6598 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 6599 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6600 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6601 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6602 u32 rate, pkts, intvl;
6603 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6604 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6605 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6606 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 6607 } else
6608 err = -EINVAL;
6609
6610out:
6611 return err;
6612}
6613
29cbe68c
JB		 6614static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6615{
6616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6617 struct net_device *dev = info->user_ptr[1];
6618 struct mesh_config cfg;
c80d545d 6619 struct mesh_setup setup;
29cbe68c
JB		 6620 int err;
6621
6622 /* start with default */
6623 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6624 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6625
24bdd9f4 6626 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6627 /* and parse parameters if given */
24bdd9f4 6628 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6629 if (err)
6630 return err;
6631 }
6632
6633 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6634 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6635 return -EINVAL;
6636
c80d545d
JC		 6637 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6638 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6639
4bb62344
CYY		 6640 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6641 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6642 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6643 return -EINVAL;
6644
c80d545d
JC		 6645 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6646 /* parse additional setup parameters if given */
6647 err = nl80211_parse_mesh_setup(info, &setup);
6648 if (err)
6649 return err;
6650 }
6651
cc1d2806 6652 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 6653 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
6654 if (err)
6655 return err;
cc1d2806
JB		 6656 } else {
6657 /* cfg80211_join_mesh() will sort it out */
683b6d3b 6658 setup.chandef.chan = NULL;
cc1d2806
JB		 6659 }
6660
c80d545d 6661 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6662}
6663
6664static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6665{
6666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6667 struct net_device *dev = info->user_ptr[1];
6668
6669 return cfg80211_leave_mesh(rdev, dev);
6670}
6671
dfb89c56 6672#ifdef CONFIG_PM
ff1b6e69
JB		 6673static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6674{
6675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6676 struct sk_buff *msg;
6677 void *hdr;
6678
6679 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6680 return -EOPNOTSUPP;
6681
6682 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6683 if (!msg)
6684 return -ENOMEM;
6685
15e47304 6686 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 6687 NL80211_CMD_GET_WOWLAN);
6688 if (!hdr)
6689 goto nla_put_failure;
6690
6691 if (rdev->wowlan) {
6692 struct nlattr *nl_wowlan;
6693
6694 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6695 if (!nl_wowlan)
6696 goto nla_put_failure;
6697
9360ffd1
DM		 6698 if ((rdev->wowlan->any &&
6699 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6700 (rdev->wowlan->disconnect &&
6701 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6702 (rdev->wowlan->magic_pkt &&
6703 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6704 (rdev->wowlan->gtk_rekey_failure &&
6705 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6706 (rdev->wowlan->eap_identity_req &&
6707 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6708 (rdev->wowlan->four_way_handshake &&
6709 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6710 (rdev->wowlan->rfkill_release &&
6711 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6712 goto nla_put_failure;
ff1b6e69
JB		 6713 if (rdev->wowlan->n_patterns) {
6714 struct nlattr *nl_pats, *nl_pat;
6715 int i, pat_len;
6716
6717 nl_pats = nla_nest_start(msg,
6718 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6719 if (!nl_pats)
6720 goto nla_put_failure;
6721
6722 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6723 nl_pat = nla_nest_start(msg, i + 1);
6724 if (!nl_pat)
6725 goto nla_put_failure;
6726 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6727 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6728 DIV_ROUND_UP(pat_len, 8),
6729 rdev->wowlan->patterns[i].mask) ||
6730 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6731 pat_len,
6732 rdev->wowlan->patterns[i].pattern))
6733 goto nla_put_failure;
ff1b6e69
JB		 6734 nla_nest_end(msg, nl_pat);
6735 }
6736 nla_nest_end(msg, nl_pats);
6737 }
6738
6739 nla_nest_end(msg, nl_wowlan);
6740 }
6741
6742 genlmsg_end(msg, hdr);
6743 return genlmsg_reply(msg, info);
6744
6745nla_put_failure:
6746 nlmsg_free(msg);
6747 return -ENOBUFS;
6748}
6749
6750static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6751{
6752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6753 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 6754 struct cfg80211_wowlan new_triggers = {};
ae33bd81 6755 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 6756 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6757 int err, i;
6d52563f 6758 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6759
6760 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6761 return -EOPNOTSUPP;
6762
ae33bd81
JB		 6763 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6764 cfg80211_rdev_free_wowlan(rdev);
6765 rdev->wowlan = NULL;
6766 goto set_wakeup;
6767 }
ff1b6e69
JB		 6768
6769 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6770 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6771 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6772 nl80211_wowlan_policy);
6773 if (err)
6774 return err;
6775
6776 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6777 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6778 return -EINVAL;
6779 new_triggers.any = true;
6780 }
6781
6782 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6783 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6784 return -EINVAL;
6785 new_triggers.disconnect = true;
6786 }
6787
6788 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6789 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6790 return -EINVAL;
6791 new_triggers.magic_pkt = true;
6792 }
6793
77dbbb13
JB		 6794 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6795 return -EINVAL;
6796
6797 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6798 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6799 return -EINVAL;
6800 new_triggers.gtk_rekey_failure = true;
6801 }
6802
6803 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6804 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6805 return -EINVAL;
6806 new_triggers.eap_identity_req = true;
6807 }
6808
6809 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6810 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6811 return -EINVAL;
6812 new_triggers.four_way_handshake = true;
6813 }
6814
6815 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6816 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6817 return -EINVAL;
6818 new_triggers.rfkill_release = true;
6819 }
6820
ff1b6e69
JB		 6821 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6822 struct nlattr *pat;
6823 int n_patterns = 0;
6824 int rem, pat_len, mask_len;
6825 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6826
6827 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6828 rem)
6829 n_patterns++;
6830 if (n_patterns > wowlan->n_patterns)
6831 return -EINVAL;
6832
6833 new_triggers.patterns = kcalloc(n_patterns,
6834 sizeof(new_triggers.patterns[0]),
6835 GFP_KERNEL);
6836 if (!new_triggers.patterns)
6837 return -ENOMEM;
6838
6839 new_triggers.n_patterns = n_patterns;
6840 i = 0;
6841
6842 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6843 rem) {
6844 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6845 nla_data(pat), nla_len(pat), NULL);
6846 err = -EINVAL;
6847 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6848 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6849 goto error;
6850 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6851 mask_len = DIV_ROUND_UP(pat_len, 8);
6852 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6853 mask_len)
6854 goto error;
6855 if (pat_len > wowlan->pattern_max_len ||
6856 pat_len < wowlan->pattern_min_len)
6857 goto error;
6858
6859 new_triggers.patterns[i].mask =
6860 kmalloc(mask_len + pat_len, GFP_KERNEL);
6861 if (!new_triggers.patterns[i].mask) {
6862 err = -ENOMEM;
6863 goto error;
6864 }
6865 new_triggers.patterns[i].pattern =
6866 new_triggers.patterns[i].mask + mask_len;
6867 memcpy(new_triggers.patterns[i].mask,
6868 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6869 mask_len);
6870 new_triggers.patterns[i].pattern_len = pat_len;
6871 memcpy(new_triggers.patterns[i].pattern,
6872 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6873 pat_len);
6874 i++;
6875 }
6876 }
6877
ae33bd81
JB		 6878 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6879 if (!ntrig) {
6880 err = -ENOMEM;
6881 goto error;
ff1b6e69 6882 }
ae33bd81
JB		 6883 cfg80211_rdev_free_wowlan(rdev);
6884 rdev->wowlan = ntrig;
ff1b6e69 6885
ae33bd81 6886 set_wakeup:
6d52563f 6887 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 6888 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 6889
ff1b6e69
JB		 6890 return 0;
6891 error:
6892 for (i = 0; i < new_triggers.n_patterns; i++)
6893 kfree(new_triggers.patterns[i].mask);
6894 kfree(new_triggers.patterns);
6895 return err;
6896}
dfb89c56 6897#endif
ff1b6e69 6898
e5497d76
JB		 6899static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6900{
6901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6902 struct net_device *dev = info->user_ptr[1];
6903 struct wireless_dev *wdev = dev->ieee80211_ptr;
6904 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6905 struct cfg80211_gtk_rekey_data rekey_data;
6906 int err;
6907
6908 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6909 return -EINVAL;
6910
6911 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6912 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6913 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6914 nl80211_rekey_policy);
6915 if (err)
6916 return err;
6917
6918 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6919 return -ERANGE;
6920 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6921 return -ERANGE;
6922 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6923 return -ERANGE;
6924
6925 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6926 NL80211_KEK_LEN);
6927 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6928 NL80211_KCK_LEN);
6929 memcpy(rekey_data.replay_ctr,
6930 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6931 NL80211_REPLAY_CTR_LEN);
6932
6933 wdev_lock(wdev);
6934 if (!wdev->current_bss) {
6935 err = -ENOTCONN;
6936 goto out;
6937 }
6938
6939 if (!rdev->ops->set_rekey_data) {
6940 err = -EOPNOTSUPP;
6941 goto out;
6942 }
6943
e35e4d28 6944 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 6945 out:
6946 wdev_unlock(wdev);
6947 return err;
6948}
6949
28946da7
JB		 6950static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6951 struct genl_info *info)
6952{
6953 struct net_device *dev = info->user_ptr[1];
6954 struct wireless_dev *wdev = dev->ieee80211_ptr;
6955
6956 if (wdev->iftype != NL80211_IFTYPE_AP &&
6957 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6958 return -EINVAL;
6959
15e47304 6960 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 6961 return -EBUSY;
6962
15e47304 6963 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 6964 return 0;
6965}
6966
7f6cf311
JB		 6967static int nl80211_probe_client(struct sk_buff *skb,
6968 struct genl_info *info)
6969{
6970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6971 struct net_device *dev = info->user_ptr[1];
6972 struct wireless_dev *wdev = dev->ieee80211_ptr;
6973 struct sk_buff *msg;
6974 void *hdr;
6975 const u8 *addr;
6976 u64 cookie;
6977 int err;
6978
6979 if (wdev->iftype != NL80211_IFTYPE_AP &&
6980 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6981 return -EOPNOTSUPP;
6982
6983 if (!info->attrs[NL80211_ATTR_MAC])
6984 return -EINVAL;
6985
6986 if (!rdev->ops->probe_client)
6987 return -EOPNOTSUPP;
6988
6989 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6990 if (!msg)
6991 return -ENOMEM;
6992
15e47304 6993 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 6994 NL80211_CMD_PROBE_CLIENT);
6995
6996 if (IS_ERR(hdr)) {
6997 err = PTR_ERR(hdr);
6998 goto free_msg;
6999 }
7000
7001 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7002
e35e4d28 7003 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 7004 if (err)
7005 goto free_msg;
7006
9360ffd1
DM		 7007 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7008 goto nla_put_failure;
7f6cf311
JB		 7009
7010 genlmsg_end(msg, hdr);
7011
7012 return genlmsg_reply(msg, info);
7013
7014 nla_put_failure:
7015 err = -ENOBUFS;
7016 free_msg:
7017 nlmsg_free(msg);
7018 return err;
7019}
7020
5e760230
JB		 7021static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7022{
7023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 7024 struct cfg80211_beacon_registration *reg, *nreg;
7025 int rv;
5e760230
JB		 7026
7027 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7028 return -EOPNOTSUPP;
7029
37c73b5f
BG		 7030 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7031 if (!nreg)
7032 return -ENOMEM;
7033
7034 /* First, check if already registered. */
7035 spin_lock_bh(&rdev->beacon_registrations_lock);
7036 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7037 if (reg->nlportid == info->snd_portid) {
7038 rv = -EALREADY;
7039 goto out_err;
7040 }
7041 }
7042 /* Add it to the list */
7043 nreg->nlportid = info->snd_portid;
7044 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 7045
37c73b5f 7046 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 7047
7048 return 0;
37c73b5f
BG		 7049out_err:
7050 spin_unlock_bh(&rdev->beacon_registrations_lock);
7051 kfree(nreg);
7052 return rv;
5e760230
JB		 7053}
7054
98104fde
JB		 7055static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7056{
7057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7058 struct wireless_dev *wdev = info->user_ptr[1];
7059 int err;
7060
7061 if (!rdev->ops->start_p2p_device)
7062 return -EOPNOTSUPP;
7063
7064 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7065 return -EOPNOTSUPP;
7066
7067 if (wdev->p2p_started)
7068 return 0;
7069
7070 mutex_lock(&rdev->devlist_mtx);
7071 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7072 mutex_unlock(&rdev->devlist_mtx);
7073 if (err)
7074 return err;
7075
eeb126e9 7076 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 7077 if (err)
7078 return err;
7079
7080 wdev->p2p_started = true;
7081 mutex_lock(&rdev->devlist_mtx);
7082 rdev->opencount++;
7083 mutex_unlock(&rdev->devlist_mtx);
7084
7085 return 0;
7086}
7087
7088static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7089{
7090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7091 struct wireless_dev *wdev = info->user_ptr[1];
7092
7093 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7094 return -EOPNOTSUPP;
7095
7096 if (!rdev->ops->stop_p2p_device)
7097 return -EOPNOTSUPP;
7098
7099 if (!wdev->p2p_started)
7100 return 0;
7101
eeb126e9 7102 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 7103 wdev->p2p_started = false;
7104
7105 mutex_lock(&rdev->devlist_mtx);
7106 rdev->opencount--;
7107 mutex_unlock(&rdev->devlist_mtx);
7108
7109 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7110 rdev->scan_req->aborted = true;
7111 ___cfg80211_scan_done(rdev, true);
7112 }
7113
7114 return 0;
7115}
7116
4c476991
JB		 7117#define NL80211_FLAG_NEED_WIPHY 0x01
7118#define NL80211_FLAG_NEED_NETDEV 0x02
7119#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 7120#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7121#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7122 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 7123#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 7124/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 7125#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7126 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 7127
7128static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7129 struct genl_info *info)
7130{
7131 struct cfg80211_registered_device *rdev;
89a54e48 7132 struct wireless_dev *wdev;
4c476991 7133 struct net_device *dev;
4c476991
JB		 7134 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7135
7136 if (rtnl)
7137 rtnl_lock();
7138
7139 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 7140 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 7141 if (IS_ERR(rdev)) {
7142 if (rtnl)
7143 rtnl_unlock();
7144 return PTR_ERR(rdev);
7145 }
7146 info->user_ptr[0] = rdev;
1bf614ef
JB		 7147 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7148 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7149 mutex_lock(&cfg80211_mutex);
7150 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7151 info->attrs);
7152 if (IS_ERR(wdev)) {
7153 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7154 if (rtnl)
7155 rtnl_unlock();
89a54e48 7156 return PTR_ERR(wdev);
4c476991 7157 }
89a54e48 7158
89a54e48
JB		 7159 dev = wdev->netdev;
7160 rdev = wiphy_to_dev(wdev->wiphy);
7161
1bf614ef
JB		 7162 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7163 if (!dev) {
7164 mutex_unlock(&cfg80211_mutex);
7165 if (rtnl)
7166 rtnl_unlock();
7167 return -EINVAL;
7168 }
7169
7170 info->user_ptr[1] = dev;
7171 } else {
7172 info->user_ptr[1] = wdev;
41265714 7173 }
1bf614ef
JB		 7174
7175 if (dev) {
7176 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7177 !netif_running(dev)) {
7178 mutex_unlock(&cfg80211_mutex);
7179 if (rtnl)
7180 rtnl_unlock();
7181 return -ENETDOWN;
7182 }
7183
7184 dev_hold(dev);
98104fde
JB		 7185 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7186 if (!wdev->p2p_started) {
7187 mutex_unlock(&cfg80211_mutex);
7188 if (rtnl)
7189 rtnl_unlock();
7190 return -ENETDOWN;
7191 }
41265714 7192 }
89a54e48 7193
89a54e48
JB		 7194 cfg80211_lock_rdev(rdev);
7195
7196 mutex_unlock(&cfg80211_mutex);
7197
4c476991 7198 info->user_ptr[0] = rdev;
4c476991
JB		 7199 }
7200
7201 return 0;
7202}
7203
7204static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7205 struct genl_info *info)
7206{
7207 if (info->user_ptr[0])
7208 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7209 if (info->user_ptr[1]) {
7210 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7211 struct wireless_dev *wdev = info->user_ptr[1];
7212
7213 if (wdev->netdev)
7214 dev_put(wdev->netdev);
7215 } else {
7216 dev_put(info->user_ptr[1]);
7217 }
7218 }
4c476991
JB		 7219 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7220 rtnl_unlock();
7221}
7222
55682965
JB		 7223static struct genl_ops nl80211_ops[] = {
7224 {
7225 .cmd = NL80211_CMD_GET_WIPHY,
7226 .doit = nl80211_get_wiphy,
7227 .dumpit = nl80211_dump_wiphy,
7228 .policy = nl80211_policy,
7229 /* can be retrieved by unprivileged users */
4c476991 7230 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7231 },
7232 {
7233 .cmd = NL80211_CMD_SET_WIPHY,
7234 .doit = nl80211_set_wiphy,
7235 .policy = nl80211_policy,
7236 .flags = GENL_ADMIN_PERM,
4c476991 7237 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7238 },
7239 {
7240 .cmd = NL80211_CMD_GET_INTERFACE,
7241 .doit = nl80211_get_interface,
7242 .dumpit = nl80211_dump_interface,
7243 .policy = nl80211_policy,
7244 /* can be retrieved by unprivileged users */
72fb2abc 7245 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7246 },
7247 {
7248 .cmd = NL80211_CMD_SET_INTERFACE,
7249 .doit = nl80211_set_interface,
7250 .policy = nl80211_policy,
7251 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7252 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7253 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7254 },
7255 {
7256 .cmd = NL80211_CMD_NEW_INTERFACE,
7257 .doit = nl80211_new_interface,
7258 .policy = nl80211_policy,
7259 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7260 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7261 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7262 },
7263 {
7264 .cmd = NL80211_CMD_DEL_INTERFACE,
7265 .doit = nl80211_del_interface,
7266 .policy = nl80211_policy,
41ade00f 7267 .flags = GENL_ADMIN_PERM,
84efbb84 7268 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7269 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7270 },
7271 {
7272 .cmd = NL80211_CMD_GET_KEY,
7273 .doit = nl80211_get_key,
7274 .policy = nl80211_policy,
7275 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7276 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7277 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7278 },
7279 {
7280 .cmd = NL80211_CMD_SET_KEY,
7281 .doit = nl80211_set_key,
7282 .policy = nl80211_policy,
7283 .flags = GENL_ADMIN_PERM,
41265714 7284 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7285 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7286 },
7287 {
7288 .cmd = NL80211_CMD_NEW_KEY,
7289 .doit = nl80211_new_key,
7290 .policy = nl80211_policy,
7291 .flags = GENL_ADMIN_PERM,
41265714 7292 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7293 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7294 },
7295 {
7296 .cmd = NL80211_CMD_DEL_KEY,
7297 .doit = nl80211_del_key,
7298 .policy = nl80211_policy,
55682965 7299 .flags = GENL_ADMIN_PERM,
41265714 7300 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7301 NL80211_FLAG_NEED_RTNL,
55682965 7302 },
ed1b6cc7
JB		 7303 {
7304 .cmd = NL80211_CMD_SET_BEACON,
7305 .policy = nl80211_policy,
7306 .flags = GENL_ADMIN_PERM,
8860020e 7307 .doit = nl80211_set_beacon,
2b5f8b0b 7308 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7309 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7310 },
7311 {
8860020e 7312 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7313 .policy = nl80211_policy,
7314 .flags = GENL_ADMIN_PERM,
8860020e 7315 .doit = nl80211_start_ap,
2b5f8b0b 7316 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7317 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7318 },
7319 {
8860020e 7320 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7321 .policy = nl80211_policy,
7322 .flags = GENL_ADMIN_PERM,
8860020e 7323 .doit = nl80211_stop_ap,
2b5f8b0b 7324 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7325 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7326 },
5727ef1b
JB		 7327 {
7328 .cmd = NL80211_CMD_GET_STATION,
7329 .doit = nl80211_get_station,
2ec600d6 7330 .dumpit = nl80211_dump_station,
5727ef1b 7331 .policy = nl80211_policy,
4c476991
JB		 7332 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7333 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7334 },
7335 {
7336 .cmd = NL80211_CMD_SET_STATION,
7337 .doit = nl80211_set_station,
7338 .policy = nl80211_policy,
7339 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7340 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7341 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7342 },
7343 {
7344 .cmd = NL80211_CMD_NEW_STATION,
7345 .doit = nl80211_new_station,
7346 .policy = nl80211_policy,
7347 .flags = GENL_ADMIN_PERM,
41265714 7348 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7349 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7350 },
7351 {
7352 .cmd = NL80211_CMD_DEL_STATION,
7353 .doit = nl80211_del_station,
7354 .policy = nl80211_policy,
2ec600d6 7355 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7356 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7357 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7358 },
7359 {
7360 .cmd = NL80211_CMD_GET_MPATH,
7361 .doit = nl80211_get_mpath,
7362 .dumpit = nl80211_dump_mpath,
7363 .policy = nl80211_policy,
7364 .flags = GENL_ADMIN_PERM,
41265714 7365 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7366 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7367 },
7368 {
7369 .cmd = NL80211_CMD_SET_MPATH,
7370 .doit = nl80211_set_mpath,
7371 .policy = nl80211_policy,
7372 .flags = GENL_ADMIN_PERM,
41265714 7373 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7374 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7375 },
7376 {
7377 .cmd = NL80211_CMD_NEW_MPATH,
7378 .doit = nl80211_new_mpath,
7379 .policy = nl80211_policy,
7380 .flags = GENL_ADMIN_PERM,
41265714 7381 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7382 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7383 },
7384 {
7385 .cmd = NL80211_CMD_DEL_MPATH,
7386 .doit = nl80211_del_mpath,
7387 .policy = nl80211_policy,
9f1ba906 7388 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7389 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7390 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 7391 },
7392 {
7393 .cmd = NL80211_CMD_SET_BSS,
7394 .doit = nl80211_set_bss,
7395 .policy = nl80211_policy,
b2e1b302 7396 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7397 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7398 NL80211_FLAG_NEED_RTNL,
b2e1b302 7399 },
f130347c
LR		 7400 {
7401 .cmd = NL80211_CMD_GET_REG,
7402 .doit = nl80211_get_reg,
7403 .policy = nl80211_policy,
7404 /* can be retrieved by unprivileged users */
7405 },
b2e1b302
LR		 7406 {
7407 .cmd = NL80211_CMD_SET_REG,
7408 .doit = nl80211_set_reg,
7409 .policy = nl80211_policy,
7410 .flags = GENL_ADMIN_PERM,
7411 },
7412 {
7413 .cmd = NL80211_CMD_REQ_SET_REG,
7414 .doit = nl80211_req_set_reg,
7415 .policy = nl80211_policy,
93da9cc1 7416 .flags = GENL_ADMIN_PERM,
7417 },
7418 {
24bdd9f4
JC		 7419 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7420 .doit = nl80211_get_mesh_config,
93da9cc1 7421 .policy = nl80211_policy,
7422 /* can be retrieved by unprivileged users */
2b5f8b0b 7423 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7424 NL80211_FLAG_NEED_RTNL,
93da9cc1 7425 },
7426 {
24bdd9f4
JC		 7427 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7428 .doit = nl80211_update_mesh_config,
93da9cc1 7429 .policy = nl80211_policy,
9aed3cc1 7430 .flags = GENL_ADMIN_PERM,
29cbe68c 7431 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7432 NL80211_FLAG_NEED_RTNL,
9aed3cc1 7433 },
2a519311
JB		 7434 {
7435 .cmd = NL80211_CMD_TRIGGER_SCAN,
7436 .doit = nl80211_trigger_scan,
7437 .policy = nl80211_policy,
7438 .flags = GENL_ADMIN_PERM,
fd014284 7439 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7440 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 7441 },
7442 {
7443 .cmd = NL80211_CMD_GET_SCAN,
7444 .policy = nl80211_policy,
7445 .dumpit = nl80211_dump_scan,
7446 },
807f8a8c
LC		 7447 {
7448 .cmd = NL80211_CMD_START_SCHED_SCAN,
7449 .doit = nl80211_start_sched_scan,
7450 .policy = nl80211_policy,
7451 .flags = GENL_ADMIN_PERM,
7452 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7453 NL80211_FLAG_NEED_RTNL,
7454 },
7455 {
7456 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7457 .doit = nl80211_stop_sched_scan,
7458 .policy = nl80211_policy,
7459 .flags = GENL_ADMIN_PERM,
7460 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7461 NL80211_FLAG_NEED_RTNL,
7462 },
636a5d36
JM		 7463 {
7464 .cmd = NL80211_CMD_AUTHENTICATE,
7465 .doit = nl80211_authenticate,
7466 .policy = nl80211_policy,
7467 .flags = GENL_ADMIN_PERM,
41265714 7468 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7469 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7470 },
7471 {
7472 .cmd = NL80211_CMD_ASSOCIATE,
7473 .doit = nl80211_associate,
7474 .policy = nl80211_policy,
7475 .flags = GENL_ADMIN_PERM,
41265714 7476 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7477 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7478 },
7479 {
7480 .cmd = NL80211_CMD_DEAUTHENTICATE,
7481 .doit = nl80211_deauthenticate,
7482 .policy = nl80211_policy,
7483 .flags = GENL_ADMIN_PERM,
41265714 7484 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7485 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7486 },
7487 {
7488 .cmd = NL80211_CMD_DISASSOCIATE,
7489 .doit = nl80211_disassociate,
7490 .policy = nl80211_policy,
7491 .flags = GENL_ADMIN_PERM,
41265714 7492 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7493 NL80211_FLAG_NEED_RTNL,
636a5d36 7494 },
04a773ad
JB		 7495 {
7496 .cmd = NL80211_CMD_JOIN_IBSS,
7497 .doit = nl80211_join_ibss,
7498 .policy = nl80211_policy,
7499 .flags = GENL_ADMIN_PERM,
41265714 7500 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7501 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 7502 },
7503 {
7504 .cmd = NL80211_CMD_LEAVE_IBSS,
7505 .doit = nl80211_leave_ibss,
7506 .policy = nl80211_policy,
7507 .flags = GENL_ADMIN_PERM,
41265714 7508 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7509 NL80211_FLAG_NEED_RTNL,
04a773ad 7510 },
aff89a9b
JB		 7511#ifdef CONFIG_NL80211_TESTMODE
7512 {
7513 .cmd = NL80211_CMD_TESTMODE,
7514 .doit = nl80211_testmode_do,
71063f0e 7515 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7516 .policy = nl80211_policy,
7517 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7518 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7519 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7520 },
7521#endif
b23aa676
SO		 7522 {
7523 .cmd = NL80211_CMD_CONNECT,
7524 .doit = nl80211_connect,
7525 .policy = nl80211_policy,
7526 .flags = GENL_ADMIN_PERM,
41265714 7527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7528 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7529 },
7530 {
7531 .cmd = NL80211_CMD_DISCONNECT,
7532 .doit = nl80211_disconnect,
7533 .policy = nl80211_policy,
7534 .flags = GENL_ADMIN_PERM,
41265714 7535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7536 NL80211_FLAG_NEED_RTNL,
b23aa676 7537 },
463d0183
JB		 7538 {
7539 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7540 .doit = nl80211_wiphy_netns,
7541 .policy = nl80211_policy,
7542 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7543 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7544 NL80211_FLAG_NEED_RTNL,
463d0183 7545 },
61fa713c
HS		 7546 {
7547 .cmd = NL80211_CMD_GET_SURVEY,
7548 .policy = nl80211_policy,
7549 .dumpit = nl80211_dump_survey,
7550 },
67fbb16b
SO		 7551 {
7552 .cmd = NL80211_CMD_SET_PMKSA,
7553 .doit = nl80211_setdel_pmksa,
7554 .policy = nl80211_policy,
7555 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7556 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7557 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7558 },
7559 {
7560 .cmd = NL80211_CMD_DEL_PMKSA,
7561 .doit = nl80211_setdel_pmksa,
7562 .policy = nl80211_policy,
7563 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7564 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7565 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7566 },
7567 {
7568 .cmd = NL80211_CMD_FLUSH_PMKSA,
7569 .doit = nl80211_flush_pmksa,
7570 .policy = nl80211_policy,
7571 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7572 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7573 NL80211_FLAG_NEED_RTNL,
67fbb16b 7574 },
9588bbd5
JM		 7575 {
7576 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7577 .doit = nl80211_remain_on_channel,
7578 .policy = nl80211_policy,
7579 .flags = GENL_ADMIN_PERM,
71bbc994 7580 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7581 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7582 },
7583 {
7584 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7585 .doit = nl80211_cancel_remain_on_channel,
7586 .policy = nl80211_policy,
7587 .flags = GENL_ADMIN_PERM,
71bbc994 7588 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7589 NL80211_FLAG_NEED_RTNL,
9588bbd5 7590 },
13ae75b1
JM		 7591 {
7592 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7593 .doit = nl80211_set_tx_bitrate_mask,
7594 .policy = nl80211_policy,
7595 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7596 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7597 NL80211_FLAG_NEED_RTNL,
13ae75b1 7598 },
026331c4 7599 {
2e161f78
JB		 7600 .cmd = NL80211_CMD_REGISTER_FRAME,
7601 .doit = nl80211_register_mgmt,
026331c4
JM		 7602 .policy = nl80211_policy,
7603 .flags = GENL_ADMIN_PERM,
71bbc994 7604 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7605 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7606 },
7607 {
2e161f78
JB		 7608 .cmd = NL80211_CMD_FRAME,
7609 .doit = nl80211_tx_mgmt,
026331c4 7610 .policy = nl80211_policy,
f7ca38df 7611 .flags = GENL_ADMIN_PERM,
71bbc994 7612 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 7613 NL80211_FLAG_NEED_RTNL,
7614 },
7615 {
7616 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7617 .doit = nl80211_tx_mgmt_cancel_wait,
7618 .policy = nl80211_policy,
026331c4 7619 .flags = GENL_ADMIN_PERM,
71bbc994 7620 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7621 NL80211_FLAG_NEED_RTNL,
026331c4 7622 },
ffb9eb3d
KV		 7623 {
7624 .cmd = NL80211_CMD_SET_POWER_SAVE,
7625 .doit = nl80211_set_power_save,
7626 .policy = nl80211_policy,
7627 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7628 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7629 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7630 },
7631 {
7632 .cmd = NL80211_CMD_GET_POWER_SAVE,
7633 .doit = nl80211_get_power_save,
7634 .policy = nl80211_policy,
7635 /* can be retrieved by unprivileged users */
4c476991
JB		 7636 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7637 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7638 },
d6dc1a38
JO		 7639 {
7640 .cmd = NL80211_CMD_SET_CQM,
7641 .doit = nl80211_set_cqm,
7642 .policy = nl80211_policy,
7643 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7644 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7645 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7646 },
f444de05
JB		 7647 {
7648 .cmd = NL80211_CMD_SET_CHANNEL,
7649 .doit = nl80211_set_channel,
7650 .policy = nl80211_policy,
7651 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7652 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7653 NL80211_FLAG_NEED_RTNL,
f444de05 7654 },
e8347eba
BJ		 7655 {
7656 .cmd = NL80211_CMD_SET_WDS_PEER,
7657 .doit = nl80211_set_wds_peer,
7658 .policy = nl80211_policy,
7659 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7660 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7661 NL80211_FLAG_NEED_RTNL,
e8347eba 7662 },
29cbe68c
JB		 7663 {
7664 .cmd = NL80211_CMD_JOIN_MESH,
7665 .doit = nl80211_join_mesh,
7666 .policy = nl80211_policy,
7667 .flags = GENL_ADMIN_PERM,
7668 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7669 NL80211_FLAG_NEED_RTNL,
7670 },
7671 {
7672 .cmd = NL80211_CMD_LEAVE_MESH,
7673 .doit = nl80211_leave_mesh,
7674 .policy = nl80211_policy,
7675 .flags = GENL_ADMIN_PERM,
7676 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7677 NL80211_FLAG_NEED_RTNL,
7678 },
dfb89c56 7679#ifdef CONFIG_PM
ff1b6e69
JB		 7680 {
7681 .cmd = NL80211_CMD_GET_WOWLAN,
7682 .doit = nl80211_get_wowlan,
7683 .policy = nl80211_policy,
7684 /* can be retrieved by unprivileged users */
7685 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7686 NL80211_FLAG_NEED_RTNL,
7687 },
7688 {
7689 .cmd = NL80211_CMD_SET_WOWLAN,
7690 .doit = nl80211_set_wowlan,
7691 .policy = nl80211_policy,
7692 .flags = GENL_ADMIN_PERM,
7693 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7694 NL80211_FLAG_NEED_RTNL,
7695 },
dfb89c56 7696#endif
e5497d76
JB		 7697 {
7698 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7699 .doit = nl80211_set_rekey_data,
7700 .policy = nl80211_policy,
7701 .flags = GENL_ADMIN_PERM,
7702 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7703 NL80211_FLAG_NEED_RTNL,
7704 },
109086ce
AN		 7705 {
7706 .cmd = NL80211_CMD_TDLS_MGMT,
7707 .doit = nl80211_tdls_mgmt,
7708 .policy = nl80211_policy,
7709 .flags = GENL_ADMIN_PERM,
7710 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7711 NL80211_FLAG_NEED_RTNL,
7712 },
7713 {
7714 .cmd = NL80211_CMD_TDLS_OPER,
7715 .doit = nl80211_tdls_oper,
7716 .policy = nl80211_policy,
7717 .flags = GENL_ADMIN_PERM,
7718 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7719 NL80211_FLAG_NEED_RTNL,
7720 },
28946da7
JB		 7721 {
7722 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7723 .doit = nl80211_register_unexpected_frame,
7724 .policy = nl80211_policy,
7725 .flags = GENL_ADMIN_PERM,
7726 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7727 NL80211_FLAG_NEED_RTNL,
7728 },
7f6cf311
JB		 7729 {
7730 .cmd = NL80211_CMD_PROBE_CLIENT,
7731 .doit = nl80211_probe_client,
7732 .policy = nl80211_policy,
7733 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7734 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7735 NL80211_FLAG_NEED_RTNL,
7736 },
5e760230
JB		 7737 {
7738 .cmd = NL80211_CMD_REGISTER_BEACONS,
7739 .doit = nl80211_register_beacons,
7740 .policy = nl80211_policy,
7741 .flags = GENL_ADMIN_PERM,
7742 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7743 NL80211_FLAG_NEED_RTNL,
7744 },
1d9d9213
SW		 7745 {
7746 .cmd = NL80211_CMD_SET_NOACK_MAP,
7747 .doit = nl80211_set_noack_map,
7748 .policy = nl80211_policy,
7749 .flags = GENL_ADMIN_PERM,
7750 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7751 NL80211_FLAG_NEED_RTNL,
7752 },
98104fde
JB		 7753 {
7754 .cmd = NL80211_CMD_START_P2P_DEVICE,
7755 .doit = nl80211_start_p2p_device,
7756 .policy = nl80211_policy,
7757 .flags = GENL_ADMIN_PERM,
7758 .internal_flags = NL80211_FLAG_NEED_WDEV |
7759 NL80211_FLAG_NEED_RTNL,
7760 },
7761 {
7762 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7763 .doit = nl80211_stop_p2p_device,
7764 .policy = nl80211_policy,
7765 .flags = GENL_ADMIN_PERM,
7766 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7767 NL80211_FLAG_NEED_RTNL,
7768 },
f4e583c8
AQ		 7769 {
7770 .cmd = NL80211_CMD_SET_MCAST_RATE,
7771 .doit = nl80211_set_mcast_rate,
7772 .policy = nl80211_policy,
7773 .flags = GENL_ADMIN_PERM,
7774 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7775 NL80211_FLAG_NEED_RTNL,
7776 },
55682965 7777};
9588bbd5 7778
6039f6d2
JM		 7779static struct genl_multicast_group nl80211_mlme_mcgrp = {
7780 .name = "mlme",
7781};
55682965
JB		 7782
7783/* multicast groups */
7784static struct genl_multicast_group nl80211_config_mcgrp = {
7785 .name = "config",
7786};
2a519311
JB		 7787static struct genl_multicast_group nl80211_scan_mcgrp = {
7788 .name = "scan",
7789};
73d54c9e
LR		 7790static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7791 .name = "regulatory",
7792};
55682965
JB		 7793
7794/* notification functions */
7795
7796void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7797{
7798 struct sk_buff *msg;
7799
fd2120ca 7800 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7801 if (!msg)
7802 return;
7803
7804 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7805 nlmsg_free(msg);
7806 return;
7807 }
7808
463d0183
JB		 7809 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7810 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7811}
7812
362a415d
JB		 7813static int nl80211_add_scan_req(struct sk_buff *msg,
7814 struct cfg80211_registered_device *rdev)
7815{
7816 struct cfg80211_scan_request *req = rdev->scan_req;
7817 struct nlattr *nest;
7818 int i;
7819
667503dd
JB		 7820 ASSERT_RDEV_LOCK(rdev);
7821
362a415d
JB		 7822 if (WARN_ON(!req))
7823 return 0;
7824
7825 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7826 if (!nest)
7827 goto nla_put_failure;
9360ffd1
DM		 7828 for (i = 0; i < req->n_ssids; i++) {
7829 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7830 goto nla_put_failure;
7831 }
362a415d
JB		 7832 nla_nest_end(msg, nest);
7833
7834 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7835 if (!nest)
7836 goto nla_put_failure;
9360ffd1
DM		 7837 for (i = 0; i < req->n_channels; i++) {
7838 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7839 goto nla_put_failure;
7840 }
362a415d
JB		 7841 nla_nest_end(msg, nest);
7842
9360ffd1
DM		 7843 if (req->ie &&
7844 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7845 goto nla_put_failure;
362a415d 7846
ed473771
SL		 7847 if (req->flags)
7848 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7849
362a415d
JB		 7850 return 0;
7851 nla_put_failure:
7852 return -ENOBUFS;
7853}
7854
a538e2d5
JB		 7855static int nl80211_send_scan_msg(struct sk_buff *msg,
7856 struct cfg80211_registered_device *rdev,
fd014284 7857 struct wireless_dev *wdev,
15e47304 7858 u32 portid, u32 seq, int flags,
a538e2d5 7859 u32 cmd)
2a519311
JB		 7860{
7861 void *hdr;
7862
15e47304 7863 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 7864 if (!hdr)
7865 return -1;
7866
9360ffd1 7867 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 7868 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7869 wdev->netdev->ifindex)) ||
7870 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 7871 goto nla_put_failure;
2a519311 7872
362a415d
JB		 7873 /* ignore errors and send incomplete event anyway */
7874 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7875
7876 return genlmsg_end(msg, hdr);
7877
7878 nla_put_failure:
7879 genlmsg_cancel(msg, hdr);
7880 return -EMSGSIZE;
7881}
7882
807f8a8c
LC		 7883static int
7884nl80211_send_sched_scan_msg(struct sk_buff *msg,
7885 struct cfg80211_registered_device *rdev,
7886 struct net_device *netdev,
15e47304 7887 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 7888{
7889 void *hdr;
7890
15e47304 7891 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 7892 if (!hdr)
7893 return -1;
7894
9360ffd1
DM		 7895 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7896 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7897 goto nla_put_failure;
807f8a8c
LC		 7898
7899 return genlmsg_end(msg, hdr);
7900
7901 nla_put_failure:
7902 genlmsg_cancel(msg, hdr);
7903 return -EMSGSIZE;
7904}
7905
a538e2d5 7906void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 7907 struct wireless_dev *wdev)
a538e2d5
JB		 7908{
7909 struct sk_buff *msg;
7910
58050fce 7911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 7912 if (!msg)
7913 return;
7914
fd014284 7915 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 7916 NL80211_CMD_TRIGGER_SCAN) < 0) {
7917 nlmsg_free(msg);
7918 return;
7919 }
7920
463d0183
JB		 7921 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7922 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7923}
7924
2a519311 7925void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 7926 struct wireless_dev *wdev)
2a519311
JB		 7927{
7928 struct sk_buff *msg;
7929
fd2120ca 7930 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7931 if (!msg)
7932 return;
7933
fd014284 7934 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7935 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7936 nlmsg_free(msg);
7937 return;
7938 }
7939
463d0183
JB		 7940 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7941 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7942}
7943
7944void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 7945 struct wireless_dev *wdev)
2a519311
JB		 7946{
7947 struct sk_buff *msg;
7948
fd2120ca 7949 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7950 if (!msg)
7951 return;
7952
fd014284 7953 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7954 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7955 nlmsg_free(msg);
7956 return;
7957 }
7958
463d0183
JB		 7959 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7960 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7961}
7962
807f8a8c
LC		 7963void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7964 struct net_device *netdev)
7965{
7966 struct sk_buff *msg;
7967
7968 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7969 if (!msg)
7970 return;
7971
7972 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7973 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7974 nlmsg_free(msg);
7975 return;
7976 }
7977
7978 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7979 nl80211_scan_mcgrp.id, GFP_KERNEL);
7980}
7981
7982void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7983 struct net_device *netdev, u32 cmd)
7984{
7985 struct sk_buff *msg;
7986
58050fce 7987 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 7988 if (!msg)
7989 return;
7990
7991 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7992 nlmsg_free(msg);
7993 return;
7994 }
7995
7996 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7997 nl80211_scan_mcgrp.id, GFP_KERNEL);
7998}
7999
73d54c9e
LR		 8000/*
8001 * This can happen on global regulatory changes or device specific settings
8002 * based on custom world regulatory domains.
8003 */
8004void nl80211_send_reg_change_event(struct regulatory_request *request)
8005{
8006 struct sk_buff *msg;
8007 void *hdr;
8008
fd2120ca 8009 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 8010 if (!msg)
8011 return;
8012
8013 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8014 if (!hdr) {
8015 nlmsg_free(msg);
8016 return;
8017 }
8018
8019 /* Userspace can always count this one always being set */
9360ffd1
DM		 8020 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8021 goto nla_put_failure;
8022
8023 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8024 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8025 NL80211_REGDOM_TYPE_WORLD))
8026 goto nla_put_failure;
8027 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8028 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8029 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8030 goto nla_put_failure;
8031 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8032 request->intersect) {
8033 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8034 NL80211_REGDOM_TYPE_INTERSECTION))
8035 goto nla_put_failure;
8036 } else {
8037 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8038 NL80211_REGDOM_TYPE_COUNTRY) ||
8039 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8040 request->alpha2))
8041 goto nla_put_failure;
8042 }
8043
f4173766 8044 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 8045 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8046 goto nla_put_failure;
73d54c9e 8047
3b7b72ee 8048 genlmsg_end(msg, hdr);
73d54c9e 8049
bc43b28c 8050 rcu_read_lock();
463d0183 8051 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 8052 GFP_ATOMIC);
8053 rcu_read_unlock();
73d54c9e
LR		 8054
8055 return;
8056
8057nla_put_failure:
8058 genlmsg_cancel(msg, hdr);
8059 nlmsg_free(msg);
8060}
8061
6039f6d2
JM		 8062static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8063 struct net_device *netdev,
8064 const u8 *buf, size_t len,
e6d6e342 8065 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 8066{
8067 struct sk_buff *msg;
8068 void *hdr;
8069
e6d6e342 8070 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 8071 if (!msg)
8072 return;
8073
8074 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8075 if (!hdr) {
8076 nlmsg_free(msg);
8077 return;
8078 }
8079
9360ffd1
DM		 8080 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8081 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8082 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8083 goto nla_put_failure;
6039f6d2 8084
3b7b72ee 8085 genlmsg_end(msg, hdr);
6039f6d2 8086
463d0183
JB		 8087 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8088 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 8089 return;
8090
8091 nla_put_failure:
8092 genlmsg_cancel(msg, hdr);
8093 nlmsg_free(msg);
8094}
8095
8096void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8097 struct net_device *netdev, const u8 *buf,
8098 size_t len, gfp_t gfp)
6039f6d2
JM		 8099{
8100 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8101 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 8102}
8103
8104void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8105 struct net_device *netdev, const u8 *buf,
e6d6e342 8106 size_t len, gfp_t gfp)
6039f6d2 8107{
e6d6e342
JB		 8108 nl80211_send_mlme_event(rdev, netdev, buf, len,
8109 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 8110}
8111
53b46b84 8112void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8113 struct net_device *netdev, const u8 *buf,
8114 size_t len, gfp_t gfp)
6039f6d2
JM		 8115{
8116 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8117 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 8118}
8119
53b46b84
JM		 8120void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8121 struct net_device *netdev, const u8 *buf,
e6d6e342 8122 size_t len, gfp_t gfp)
6039f6d2
JM		 8123{
8124 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8125 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 8126}
8127
cf4e594e
JM		 8128void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8129 struct net_device *netdev, const u8 *buf,
8130 size_t len, gfp_t gfp)
8131{
8132 nl80211_send_mlme_event(rdev, netdev, buf, len,
8133 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8134}
8135
8136void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8137 struct net_device *netdev, const u8 *buf,
8138 size_t len, gfp_t gfp)
8139{
8140 nl80211_send_mlme_event(rdev, netdev, buf, len,
8141 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8142}
8143
1b06bb40
LR		 8144static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8145 struct net_device *netdev, int cmd,
e6d6e342 8146 const u8 *addr, gfp_t gfp)
1965c853
JM		 8147{
8148 struct sk_buff *msg;
8149 void *hdr;
8150
e6d6e342 8151 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 8152 if (!msg)
8153 return;
8154
8155 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8156 if (!hdr) {
8157 nlmsg_free(msg);
8158 return;
8159 }
8160
9360ffd1
DM		 8161 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8162 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8163 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8164 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8165 goto nla_put_failure;
1965c853 8166
3b7b72ee 8167 genlmsg_end(msg, hdr);
1965c853 8168
463d0183
JB		 8169 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8170 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8171 return;
8172
8173 nla_put_failure:
8174 genlmsg_cancel(msg, hdr);
8175 nlmsg_free(msg);
8176}
8177
8178void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8179 struct net_device *netdev, const u8 *addr,
8180 gfp_t gfp)
1965c853
JM		 8181{
8182 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8183 addr, gfp);
1965c853
JM		 8184}
8185
8186void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8187 struct net_device *netdev, const u8 *addr,
8188 gfp_t gfp)
1965c853 8189{
e6d6e342
JB		 8190 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8191 addr, gfp);
1965c853
JM		 8192}
8193
b23aa676
SO		 8194void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8195 struct net_device *netdev, const u8 *bssid,
8196 const u8 *req_ie, size_t req_ie_len,
8197 const u8 *resp_ie, size_t resp_ie_len,
8198 u16 status, gfp_t gfp)
8199{
8200 struct sk_buff *msg;
8201 void *hdr;
8202
58050fce 8203 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8204 if (!msg)
8205 return;
8206
8207 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8208 if (!hdr) {
8209 nlmsg_free(msg);
8210 return;
8211 }
8212
9360ffd1
DM		 8213 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8214 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8215 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8216 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8217 (req_ie &&
8218 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8219 (resp_ie &&
8220 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8221 goto nla_put_failure;
b23aa676 8222
3b7b72ee 8223 genlmsg_end(msg, hdr);
b23aa676 8224
463d0183
JB		 8225 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8226 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8227 return;
8228
8229 nla_put_failure:
8230 genlmsg_cancel(msg, hdr);
8231 nlmsg_free(msg);
8232
8233}
8234
8235void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8236 struct net_device *netdev, const u8 *bssid,
8237 const u8 *req_ie, size_t req_ie_len,
8238 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8239{
8240 struct sk_buff *msg;
8241 void *hdr;
8242
58050fce 8243 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8244 if (!msg)
8245 return;
8246
8247 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8248 if (!hdr) {
8249 nlmsg_free(msg);
8250 return;
8251 }
8252
9360ffd1
DM		 8253 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8254 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8255 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8256 (req_ie &&
8257 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8258 (resp_ie &&
8259 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8260 goto nla_put_failure;
b23aa676 8261
3b7b72ee 8262 genlmsg_end(msg, hdr);
b23aa676 8263
463d0183
JB		 8264 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8265 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8266 return;
8267
8268 nla_put_failure:
8269 genlmsg_cancel(msg, hdr);
8270 nlmsg_free(msg);
8271
8272}
8273
8274void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8275 struct net_device *netdev, u16 reason,
667503dd 8276 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8277{
8278 struct sk_buff *msg;
8279 void *hdr;
8280
58050fce 8281 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8282 if (!msg)
8283 return;
8284
8285 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8286 if (!hdr) {
8287 nlmsg_free(msg);
8288 return;
8289 }
8290
9360ffd1
DM		 8291 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8292 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8293 (from_ap && reason &&
8294 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8295 (from_ap &&
8296 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8297 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8298 goto nla_put_failure;
b23aa676 8299
3b7b72ee 8300 genlmsg_end(msg, hdr);
b23aa676 8301
463d0183
JB		 8302 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8303 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8304 return;
8305
8306 nla_put_failure:
8307 genlmsg_cancel(msg, hdr);
8308 nlmsg_free(msg);
8309
8310}
8311
04a773ad
JB		 8312void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8313 struct net_device *netdev, const u8 *bssid,
8314 gfp_t gfp)
8315{
8316 struct sk_buff *msg;
8317 void *hdr;
8318
fd2120ca 8319 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 8320 if (!msg)
8321 return;
8322
8323 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8324 if (!hdr) {
8325 nlmsg_free(msg);
8326 return;
8327 }
8328
9360ffd1
DM		 8329 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8330 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8331 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8332 goto nla_put_failure;
04a773ad 8333
3b7b72ee 8334 genlmsg_end(msg, hdr);
04a773ad 8335
463d0183
JB		 8336 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8337 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 8338 return;
8339
8340 nla_put_failure:
8341 genlmsg_cancel(msg, hdr);
8342 nlmsg_free(msg);
8343}
8344
c93b5e71
JC		 8345void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8346 struct net_device *netdev,
8347 const u8 *macaddr, const u8* ie, u8 ie_len,
8348 gfp_t gfp)
8349{
8350 struct sk_buff *msg;
8351 void *hdr;
8352
8353 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8354 if (!msg)
8355 return;
8356
8357 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8358 if (!hdr) {
8359 nlmsg_free(msg);
8360 return;
8361 }
8362
9360ffd1
DM		 8363 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8364 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8365 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8366 (ie_len && ie &&
8367 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8368 goto nla_put_failure;
c93b5e71 8369
3b7b72ee 8370 genlmsg_end(msg, hdr);
c93b5e71
JC		 8371
8372 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8373 nl80211_mlme_mcgrp.id, gfp);
8374 return;
8375
8376 nla_put_failure:
8377 genlmsg_cancel(msg, hdr);
8378 nlmsg_free(msg);
8379}
8380
a3b8b056
JM		 8381void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8382 struct net_device *netdev, const u8 *addr,
8383 enum nl80211_key_type key_type, int key_id,
e6d6e342 8384 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 8385{
8386 struct sk_buff *msg;
8387 void *hdr;
8388
e6d6e342 8389 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 8390 if (!msg)
8391 return;
8392
8393 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8394 if (!hdr) {
8395 nlmsg_free(msg);
8396 return;
8397 }
8398
9360ffd1
DM		 8399 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8400 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8401 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8402 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8403 (key_id != -1 &&
8404 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8405 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8406 goto nla_put_failure;
a3b8b056 8407
3b7b72ee 8408 genlmsg_end(msg, hdr);
a3b8b056 8409
463d0183
JB		 8410 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8411 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 8412 return;
8413
8414 nla_put_failure:
8415 genlmsg_cancel(msg, hdr);
8416 nlmsg_free(msg);
8417}
8418
6bad8766
LR		 8419void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8420 struct ieee80211_channel *channel_before,
8421 struct ieee80211_channel *channel_after)
8422{
8423 struct sk_buff *msg;
8424 void *hdr;
8425 struct nlattr *nl_freq;
8426
fd2120ca 8427 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 8428 if (!msg)
8429 return;
8430
8431 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8432 if (!hdr) {
8433 nlmsg_free(msg);
8434 return;
8435 }
8436
8437 /*
8438 * Since we are applying the beacon hint to a wiphy we know its
8439 * wiphy_idx is valid
8440 */
9360ffd1
DM		 8441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8442 goto nla_put_failure;
6bad8766
LR		 8443
8444 /* Before */
8445 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8446 if (!nl_freq)
8447 goto nla_put_failure;
8448 if (nl80211_msg_put_channel(msg, channel_before))
8449 goto nla_put_failure;
8450 nla_nest_end(msg, nl_freq);
8451
8452 /* After */
8453 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8454 if (!nl_freq)
8455 goto nla_put_failure;
8456 if (nl80211_msg_put_channel(msg, channel_after))
8457 goto nla_put_failure;
8458 nla_nest_end(msg, nl_freq);
8459
3b7b72ee 8460 genlmsg_end(msg, hdr);
6bad8766 8461
463d0183
JB		 8462 rcu_read_lock();
8463 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8464 GFP_ATOMIC);
8465 rcu_read_unlock();
6bad8766
LR		 8466
8467 return;
8468
8469nla_put_failure:
8470 genlmsg_cancel(msg, hdr);
8471 nlmsg_free(msg);
8472}
8473
9588bbd5
JM		 8474static void nl80211_send_remain_on_chan_event(
8475 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 8476 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8477 struct ieee80211_channel *chan,
9588bbd5
JM		 8478 unsigned int duration, gfp_t gfp)
8479{
8480 struct sk_buff *msg;
8481 void *hdr;
8482
8483 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8484 if (!msg)
8485 return;
8486
8487 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8488 if (!hdr) {
8489 nlmsg_free(msg);
8490 return;
8491 }
8492
9360ffd1 8493 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8494 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8495 wdev->netdev->ifindex)) ||
00f53350 8496 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 8497 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 8498 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
8499 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 8500 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8501 goto nla_put_failure;
9588bbd5 8502
9360ffd1
DM		 8503 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8504 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8505 goto nla_put_failure;
9588bbd5 8506
3b7b72ee 8507 genlmsg_end(msg, hdr);
9588bbd5
JM		 8508
8509 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8510 nl80211_mlme_mcgrp.id, gfp);
8511 return;
8512
8513 nla_put_failure:
8514 genlmsg_cancel(msg, hdr);
8515 nlmsg_free(msg);
8516}
8517
8518void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 8519 struct wireless_dev *wdev, u64 cookie,
9588bbd5 8520 struct ieee80211_channel *chan,
9588bbd5
JM		 8521 unsigned int duration, gfp_t gfp)
8522{
8523 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 8524 rdev, wdev, cookie, chan,
42d97a59 8525 duration, gfp);
9588bbd5
JM		 8526}
8527
8528void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 8529 struct cfg80211_registered_device *rdev,
8530 struct wireless_dev *wdev,
42d97a59 8531 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9588bbd5
JM		 8532{
8533 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 8534 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5
JM		 8535}
8536
98b62183
JB		 8537void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8538 struct net_device *dev, const u8 *mac_addr,
8539 struct station_info *sinfo, gfp_t gfp)
8540{
8541 struct sk_buff *msg;
8542
58050fce 8543 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 8544 if (!msg)
8545 return;
8546
66266b3a
JL		 8547 if (nl80211_send_station(msg, 0, 0, 0,
8548 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8549 nlmsg_free(msg);
8550 return;
8551 }
8552
8553 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8554 nl80211_mlme_mcgrp.id, gfp);
8555}
8556
ec15e68b
JM		 8557void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8558 struct net_device *dev, const u8 *mac_addr,
8559 gfp_t gfp)
8560{
8561 struct sk_buff *msg;
8562 void *hdr;
8563
58050fce 8564 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 8565 if (!msg)
8566 return;
8567
8568 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8569 if (!hdr) {
8570 nlmsg_free(msg);
8571 return;
8572 }
8573
9360ffd1
DM		 8574 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8575 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8576 goto nla_put_failure;
ec15e68b 8577
3b7b72ee 8578 genlmsg_end(msg, hdr);
ec15e68b
JM		 8579
8580 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8581 nl80211_mlme_mcgrp.id, gfp);
8582 return;
8583
8584 nla_put_failure:
8585 genlmsg_cancel(msg, hdr);
8586 nlmsg_free(msg);
8587}
8588
ed44a951
PP		 8589void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8590 struct net_device *dev, const u8 *mac_addr,
8591 enum nl80211_connect_failed_reason reason,
8592 gfp_t gfp)
8593{
8594 struct sk_buff *msg;
8595 void *hdr;
8596
8597 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8598 if (!msg)
8599 return;
8600
8601 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8602 if (!hdr) {
8603 nlmsg_free(msg);
8604 return;
8605 }
8606
8607 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8608 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8609 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8610 goto nla_put_failure;
8611
8612 genlmsg_end(msg, hdr);
8613
8614 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8615 nl80211_mlme_mcgrp.id, gfp);
8616 return;
8617
8618 nla_put_failure:
8619 genlmsg_cancel(msg, hdr);
8620 nlmsg_free(msg);
8621}
8622
b92ab5d8
JB		 8623static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8624 const u8 *addr, gfp_t gfp)
28946da7
JB		 8625{
8626 struct wireless_dev *wdev = dev->ieee80211_ptr;
8627 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8628 struct sk_buff *msg;
8629 void *hdr;
8630 int err;
15e47304 8631 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 8632
15e47304 8633 if (!nlportid)
28946da7
JB		 8634 return false;
8635
8636 msg = nlmsg_new(100, gfp);
8637 if (!msg)
8638 return true;
8639
b92ab5d8 8640 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8641 if (!hdr) {
8642 nlmsg_free(msg);
8643 return true;
8644 }
8645
9360ffd1
DM		 8646 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8647 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8648 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8649 goto nla_put_failure;
28946da7
JB		 8650
8651 err = genlmsg_end(msg, hdr);
8652 if (err < 0) {
8653 nlmsg_free(msg);
8654 return true;
8655 }
8656
15e47304 8657 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 8658 return true;
8659
8660 nla_put_failure:
8661 genlmsg_cancel(msg, hdr);
8662 nlmsg_free(msg);
8663 return true;
8664}
8665
b92ab5d8
JB		 8666bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8667{
8668 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8669 addr, gfp);
8670}
8671
8672bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8673 const u8 *addr, gfp_t gfp)
8674{
8675 return __nl80211_unexpected_frame(dev,
8676 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8677 addr, gfp);
8678}
8679
2e161f78 8680int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 8681 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 8682 int freq, int sig_dbm,
8683 const u8 *buf, size_t len, gfp_t gfp)
026331c4 8684{
71bbc994 8685 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8686 struct sk_buff *msg;
8687 void *hdr;
026331c4
JM		 8688
8689 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8690 if (!msg)
8691 return -ENOMEM;
8692
2e161f78 8693 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8694 if (!hdr) {
8695 nlmsg_free(msg);
8696 return -ENOMEM;
8697 }
8698
9360ffd1 8699 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8700 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8701 netdev->ifindex)) ||
9360ffd1
DM		 8702 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8703 (sig_dbm &&
8704 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8705 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8706 goto nla_put_failure;
026331c4 8707
3b7b72ee 8708 genlmsg_end(msg, hdr);
026331c4 8709
15e47304 8710 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 8711
8712 nla_put_failure:
8713 genlmsg_cancel(msg, hdr);
8714 nlmsg_free(msg);
8715 return -ENOBUFS;
8716}
8717
2e161f78 8718void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 8719 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 8720 const u8 *buf, size_t len, bool ack,
8721 gfp_t gfp)
026331c4 8722{
71bbc994 8723 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8724 struct sk_buff *msg;
8725 void *hdr;
8726
8727 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8728 if (!msg)
8729 return;
8730
2e161f78 8731 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8732 if (!hdr) {
8733 nlmsg_free(msg);
8734 return;
8735 }
8736
9360ffd1 8737 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8738 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8739 netdev->ifindex)) ||
9360ffd1
DM		 8740 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8741 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8742 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8743 goto nla_put_failure;
026331c4 8744
3b7b72ee 8745 genlmsg_end(msg, hdr);
026331c4
JM		 8746
8747 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8748 return;
8749
8750 nla_put_failure:
8751 genlmsg_cancel(msg, hdr);
8752 nlmsg_free(msg);
8753}
8754
d6dc1a38
JO		 8755void
8756nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8757 struct net_device *netdev,
8758 enum nl80211_cqm_rssi_threshold_event rssi_event,
8759 gfp_t gfp)
8760{
8761 struct sk_buff *msg;
8762 struct nlattr *pinfoattr;
8763 void *hdr;
8764
58050fce 8765 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 8766 if (!msg)
8767 return;
8768
8769 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8770 if (!hdr) {
8771 nlmsg_free(msg);
8772 return;
8773 }
8774
9360ffd1
DM		 8775 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8776 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8777 goto nla_put_failure;
d6dc1a38
JO		 8778
8779 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8780 if (!pinfoattr)
8781 goto nla_put_failure;
8782
9360ffd1
DM		 8783 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8784 rssi_event))
8785 goto nla_put_failure;
d6dc1a38
JO		 8786
8787 nla_nest_end(msg, pinfoattr);
8788
3b7b72ee 8789 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8790
8791 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8792 nl80211_mlme_mcgrp.id, gfp);
8793 return;
8794
8795 nla_put_failure:
8796 genlmsg_cancel(msg, hdr);
8797 nlmsg_free(msg);
8798}
8799
e5497d76
JB		 8800void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8801 struct net_device *netdev, const u8 *bssid,
8802 const u8 *replay_ctr, gfp_t gfp)
8803{
8804 struct sk_buff *msg;
8805 struct nlattr *rekey_attr;
8806 void *hdr;
8807
58050fce 8808 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 8809 if (!msg)
8810 return;
8811
8812 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8813 if (!hdr) {
8814 nlmsg_free(msg);
8815 return;
8816 }
8817
9360ffd1
DM		 8818 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8819 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8820 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8821 goto nla_put_failure;
e5497d76
JB		 8822
8823 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8824 if (!rekey_attr)
8825 goto nla_put_failure;
8826
9360ffd1
DM		 8827 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8828 NL80211_REPLAY_CTR_LEN, replay_ctr))
8829 goto nla_put_failure;
e5497d76
JB		 8830
8831 nla_nest_end(msg, rekey_attr);
8832
3b7b72ee 8833 genlmsg_end(msg, hdr);
e5497d76
JB		 8834
8835 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8836 nl80211_mlme_mcgrp.id, gfp);
8837 return;
8838
8839 nla_put_failure:
8840 genlmsg_cancel(msg, hdr);
8841 nlmsg_free(msg);
8842}
8843
c9df56b4
JM		 8844void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8845 struct net_device *netdev, int index,
8846 const u8 *bssid, bool preauth, gfp_t gfp)
8847{
8848 struct sk_buff *msg;
8849 struct nlattr *attr;
8850 void *hdr;
8851
58050fce 8852 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 8853 if (!msg)
8854 return;
8855
8856 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8857 if (!hdr) {
8858 nlmsg_free(msg);
8859 return;
8860 }
8861
9360ffd1
DM		 8862 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8863 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8864 goto nla_put_failure;
c9df56b4
JM		 8865
8866 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8867 if (!attr)
8868 goto nla_put_failure;
8869
9360ffd1
DM		 8870 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8871 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8872 (preauth &&
8873 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8874 goto nla_put_failure;
c9df56b4
JM		 8875
8876 nla_nest_end(msg, attr);
8877
3b7b72ee 8878 genlmsg_end(msg, hdr);
c9df56b4
JM		 8879
8880 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8881 nl80211_mlme_mcgrp.id, gfp);
8882 return;
8883
8884 nla_put_failure:
8885 genlmsg_cancel(msg, hdr);
8886 nlmsg_free(msg);
8887}
8888
5314526b 8889void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
683b6d3b
JB		 8890 struct net_device *netdev,
8891 struct cfg80211_chan_def *chandef, gfp_t gfp)
5314526b
TP		 8892{
8893 struct sk_buff *msg;
8894 void *hdr;
8895
58050fce 8896 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 8897 if (!msg)
8898 return;
8899
8900 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8901 if (!hdr) {
8902 nlmsg_free(msg);
8903 return;
8904 }
8905
683b6d3b
JB		 8906 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8907 goto nla_put_failure;
8908
8909 if (nl80211_send_chandef(msg, chandef))
7eab0f64 8910 goto nla_put_failure;
5314526b
TP		 8911
8912 genlmsg_end(msg, hdr);
8913
8914 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8915 nl80211_mlme_mcgrp.id, gfp);
8916 return;
8917
8918 nla_put_failure:
8919 genlmsg_cancel(msg, hdr);
8920 nlmsg_free(msg);
8921}
8922
84f10708
TP		 8923void
8924nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8925 struct net_device *netdev, const u8 *peer,
8926 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8927{
8928 struct sk_buff *msg;
8929 struct nlattr *pinfoattr;
8930 void *hdr;
8931
8932 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8933 if (!msg)
8934 return;
8935
8936 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8937 if (!hdr) {
8938 nlmsg_free(msg);
8939 return;
8940 }
8941
8942 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8943 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8944 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8945 goto nla_put_failure;
8946
8947 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8948 if (!pinfoattr)
8949 goto nla_put_failure;
8950
8951 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8952 goto nla_put_failure;
8953
8954 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8955 goto nla_put_failure;
8956
8957 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8958 goto nla_put_failure;
8959
8960 nla_nest_end(msg, pinfoattr);
8961
8962 genlmsg_end(msg, hdr);
8963
8964 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8965 nl80211_mlme_mcgrp.id, gfp);
8966 return;
8967
8968 nla_put_failure:
8969 genlmsg_cancel(msg, hdr);
8970 nlmsg_free(msg);
8971}
8972
c063dbf5
JB		 8973void
8974nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8975 struct net_device *netdev, const u8 *peer,
8976 u32 num_packets, gfp_t gfp)
8977{
8978 struct sk_buff *msg;
8979 struct nlattr *pinfoattr;
8980 void *hdr;
8981
58050fce 8982 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 8983 if (!msg)
8984 return;
8985
8986 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8987 if (!hdr) {
8988 nlmsg_free(msg);
8989 return;
8990 }
8991
9360ffd1
DM		 8992 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8993 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8994 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8995 goto nla_put_failure;
c063dbf5
JB		 8996
8997 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8998 if (!pinfoattr)
8999 goto nla_put_failure;
9000
9360ffd1
DM		 9001 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9002 goto nla_put_failure;
c063dbf5
JB		 9003
9004 nla_nest_end(msg, pinfoattr);
9005
3b7b72ee 9006 genlmsg_end(msg, hdr);
c063dbf5
JB		 9007
9008 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9009 nl80211_mlme_mcgrp.id, gfp);
9010 return;
9011
9012 nla_put_failure:
9013 genlmsg_cancel(msg, hdr);
9014 nlmsg_free(msg);
9015}
9016
7f6cf311
JB		 9017void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9018 u64 cookie, bool acked, gfp_t gfp)
9019{
9020 struct wireless_dev *wdev = dev->ieee80211_ptr;
9021 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9022 struct sk_buff *msg;
9023 void *hdr;
9024 int err;
9025
4ee3e063
BL		 9026 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9027
58050fce 9028 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 9029
7f6cf311
JB		 9030 if (!msg)
9031 return;
9032
9033 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9034 if (!hdr) {
9035 nlmsg_free(msg);
9036 return;
9037 }
9038
9360ffd1
DM		 9039 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9040 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9041 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9042 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9043 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9044 goto nla_put_failure;
7f6cf311
JB		 9045
9046 err = genlmsg_end(msg, hdr);
9047 if (err < 0) {
9048 nlmsg_free(msg);
9049 return;
9050 }
9051
9052 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9053 nl80211_mlme_mcgrp.id, gfp);
9054 return;
9055
9056 nla_put_failure:
9057 genlmsg_cancel(msg, hdr);
9058 nlmsg_free(msg);
9059}
9060EXPORT_SYMBOL(cfg80211_probe_status);
9061
5e760230
JB		 9062void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9063 const u8 *frame, size_t len,
37c73b5f 9064 int freq, int sig_dbm)
5e760230
JB		 9065{
9066 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9067 struct sk_buff *msg;
9068 void *hdr;
37c73b5f 9069 struct cfg80211_beacon_registration *reg;
5e760230 9070
4ee3e063
BL		 9071 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9072
37c73b5f
BG		 9073 spin_lock_bh(&rdev->beacon_registrations_lock);
9074 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9075 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9076 if (!msg) {
9077 spin_unlock_bh(&rdev->beacon_registrations_lock);
9078 return;
9079 }
5e760230 9080
37c73b5f
BG		 9081 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9082 if (!hdr)
9083 goto nla_put_failure;
5e760230 9084
37c73b5f
BG		 9085 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9086 (freq &&
9087 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9088 (sig_dbm &&
9089 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9090 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9091 goto nla_put_failure;
5e760230 9092
37c73b5f 9093 genlmsg_end(msg, hdr);
5e760230 9094
37c73b5f
BG		 9095 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9096 }
9097 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9098 return;
9099
9100 nla_put_failure:
37c73b5f
BG		 9101 spin_unlock_bh(&rdev->beacon_registrations_lock);
9102 if (hdr)
9103 genlmsg_cancel(msg, hdr);
5e760230
JB		 9104 nlmsg_free(msg);
9105}
9106EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9107
3475b094
JM		 9108void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9109 enum nl80211_tdls_operation oper,
9110 u16 reason_code, gfp_t gfp)
9111{
9112 struct wireless_dev *wdev = dev->ieee80211_ptr;
9113 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9114 struct sk_buff *msg;
9115 void *hdr;
9116 int err;
9117
9118 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9119 reason_code);
9120
9121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9122 if (!msg)
9123 return;
9124
9125 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9126 if (!hdr) {
9127 nlmsg_free(msg);
9128 return;
9129 }
9130
9131 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9132 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9133 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9134 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9135 (reason_code > 0 &&
9136 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9137 goto nla_put_failure;
9138
9139 err = genlmsg_end(msg, hdr);
9140 if (err < 0) {
9141 nlmsg_free(msg);
9142 return;
9143 }
9144
9145 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9146 nl80211_mlme_mcgrp.id, gfp);
9147 return;
9148
9149 nla_put_failure:
9150 genlmsg_cancel(msg, hdr);
9151 nlmsg_free(msg);
9152}
9153EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9154
026331c4
JM		 9155static int nl80211_netlink_notify(struct notifier_block * nb,
9156 unsigned long state,
9157 void *_notify)
9158{
9159 struct netlink_notify *notify = _notify;
9160 struct cfg80211_registered_device *rdev;
9161 struct wireless_dev *wdev;
37c73b5f 9162 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 9163
9164 if (state != NETLINK_URELEASE)
9165 return NOTIFY_DONE;
9166
9167 rcu_read_lock();
9168
5e760230 9169 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 9170 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 9171 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 9172
9173 spin_lock_bh(&rdev->beacon_registrations_lock);
9174 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9175 list) {
9176 if (reg->nlportid == notify->portid) {
9177 list_del(&reg->list);
9178 kfree(reg);
9179 break;
9180 }
9181 }
9182 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 9183 }
026331c4
JM		 9184
9185 rcu_read_unlock();
9186
9187 return NOTIFY_DONE;
9188}
9189
9190static struct notifier_block nl80211_netlink_notifier = {
9191 .notifier_call = nl80211_netlink_notify,
9192};
9193
55682965
JB		 9194/* initialisation/exit functions */
9195
9196int nl80211_init(void)
9197{
0d63cbb5 9198 int err;
55682965 9199
0d63cbb5
MM		 9200 err = genl_register_family_with_ops(&nl80211_fam,
9201 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 9202 if (err)
9203 return err;
9204
55682965
JB		 9205 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9206 if (err)
9207 goto err_out;
9208
2a519311
JB		 9209 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9210 if (err)
9211 goto err_out;
9212
73d54c9e
LR		 9213 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9214 if (err)
9215 goto err_out;
9216
6039f6d2
JM		 9217 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9218 if (err)
9219 goto err_out;
9220
aff89a9b
JB		 9221#ifdef CONFIG_NL80211_TESTMODE
9222 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9223 if (err)
9224 goto err_out;
9225#endif
9226
026331c4
JM		 9227 err = netlink_register_notifier(&nl80211_netlink_notifier);
9228 if (err)
9229 goto err_out;
9230
55682965
JB		 9231 return 0;
9232 err_out:
9233 genl_unregister_family(&nl80211_fam);
9234 return err;
9235}
9236
9237void nl80211_exit(void)
9238{
026331c4 9239 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 9240 genl_unregister_family(&nl80211_fam);
9241}
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