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nl80211: advertise HT/VHT channel limitations
[deliverable/linux.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>
2a0e047e 22#include <net/inet_connection_sock.h>
55682965
JB		 23#include "core.h"
24#include "nl80211.h"
b2e1b302 25#include "reg.h"
e35e4d28 26#include "rdev-ops.h"
55682965 27
5fb628e9
JM		 28static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
31 int cipher_limit);
32
4c476991
JB		 33static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
37
55682965
JB		 38/* the netlink family */
39static struct genl_family nl80211_fam = {
40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = "nl80211", /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
44 .maxattr = NL80211_ATTR_MAX,
463d0183 45 .netnsok = true,
4c476991
JB		 46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
55682965
JB		 48};
49
89a54e48
JB		 50/* returns ERR_PTR values */
51static struct wireless_dev *
52__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 53{
89a54e48
JB		 54 struct cfg80211_registered_device *rdev;
55 struct wireless_dev *result = NULL;
56 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
57 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
58 u64 wdev_id;
59 int wiphy_idx = -1;
60 int ifidx = -1;
55682965 61
89a54e48 62 assert_cfg80211_lock();
55682965 63
89a54e48
JB		 64 if (!have_ifidx && !have_wdev_id)
65 return ERR_PTR(-EINVAL);
55682965 66
89a54e48
JB		 67 if (have_ifidx)
68 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
69 if (have_wdev_id) {
70 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
71 wiphy_idx = wdev_id >> 32;
55682965
JB		 72 }
73
89a54e48
JB		 74 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
75 struct wireless_dev *wdev;
76
77 if (wiphy_net(&rdev->wiphy) != netns)
78 continue;
79
80 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
81 continue;
82
83 mutex_lock(&rdev->devlist_mtx);
84 list_for_each_entry(wdev, &rdev->wdev_list, list) {
85 if (have_ifidx && wdev->netdev &&
86 wdev->netdev->ifindex == ifidx) {
87 result = wdev;
88 break;
89 }
90 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
91 result = wdev;
92 break;
93 }
94 }
95 mutex_unlock(&rdev->devlist_mtx);
96
97 if (result)
98 break;
99 }
100
101 if (result)
102 return result;
103 return ERR_PTR(-ENODEV);
55682965
JB		 104}
105
a9455408 106static struct cfg80211_registered_device *
878d9ec7 107__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 108{
7fee4778
JB		 109 struct cfg80211_registered_device *rdev = NULL, *tmp;
110 struct net_device *netdev;
a9455408
JB		 111
112 assert_cfg80211_lock();
113
878d9ec7 114 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 115 !attrs[NL80211_ATTR_IFINDEX] &&
116 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 117 return ERR_PTR(-EINVAL);
118
878d9ec7 119 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 120 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 121 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 122
89a54e48
JB		 123 if (attrs[NL80211_ATTR_WDEV]) {
124 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
125 struct wireless_dev *wdev;
126 bool found = false;
127
128 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
129 if (tmp) {
130 /* make sure wdev exists */
131 mutex_lock(&tmp->devlist_mtx);
132 list_for_each_entry(wdev, &tmp->wdev_list, list) {
133 if (wdev->identifier != (u32)wdev_id)
134 continue;
135 found = true;
136 break;
137 }
138 mutex_unlock(&tmp->devlist_mtx);
139
140 if (!found)
141 tmp = NULL;
142
143 if (rdev && tmp != rdev)
144 return ERR_PTR(-EINVAL);
145 rdev = tmp;
146 }
147 }
148
878d9ec7
JB		 149 if (attrs[NL80211_ATTR_IFINDEX]) {
150 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 151 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 152 if (netdev) {
153 if (netdev->ieee80211_ptr)
154 tmp = wiphy_to_dev(
155 netdev->ieee80211_ptr->wiphy);
156 else
157 tmp = NULL;
158
159 dev_put(netdev);
160
161 /* not wireless device -- return error */
162 if (!tmp)
163 return ERR_PTR(-EINVAL);
164
165 /* mismatch -- return error */
166 if (rdev && tmp != rdev)
167 return ERR_PTR(-EINVAL);
168
169 rdev = tmp;
a9455408 170 }
a9455408 171 }
a9455408 172
4f7eff10
JB		 173 if (!rdev)
174 return ERR_PTR(-ENODEV);
a9455408 175
4f7eff10
JB		 176 if (netns != wiphy_net(&rdev->wiphy))
177 return ERR_PTR(-ENODEV);
178
179 return rdev;
a9455408
JB		 180}
181
182/*
183 * This function returns a pointer to the driver
184 * that the genl_info item that is passed refers to.
185 * If successful, it returns non-NULL and also locks
186 * the driver's mutex!
187 *
188 * This means that you need to call cfg80211_unlock_rdev()
189 * before being allowed to acquire &cfg80211_mutex!
190 *
191 * This is necessary because we need to lock the global
192 * mutex to get an item off the list safely, and then
193 * we lock the rdev mutex so it doesn't go away under us.
194 *
195 * We don't want to keep cfg80211_mutex locked
196 * for all the time in order to allow requests on
197 * other interfaces to go through at the same time.
198 *
199 * The result of this can be a PTR_ERR and hence must
200 * be checked with IS_ERR() for errors.
201 */
202static struct cfg80211_registered_device *
4f7eff10 203cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408
JB		 204{
205 struct cfg80211_registered_device *rdev;
206
207 mutex_lock(&cfg80211_mutex);
878d9ec7 208 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 209
210 /* if it is not an error we grab the lock on
211 * it to assure it won't be going away while
212 * we operate on it */
213 if (!IS_ERR(rdev))
214 mutex_lock(&rdev->mtx);
215
216 mutex_unlock(&cfg80211_mutex);
217
218 return rdev;
219}
220
55682965 221/* policy for the attributes */
b54452b0 222static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 223 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
224 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 225 .len = 20-1 },
31888487 226 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
3d9d1d66 227
72bdcf34 228 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 229 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
3d9d1d66
JB		 230 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
232 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
233
b9a5f8ca
JM		 234 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
236 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
237 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 238 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 239
240 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
242 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 243
e007b857
EP		 244 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
245 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 246
b9454e83 247 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 248 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
249 .len = WLAN_MAX_KEY_LEN },
250 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
251 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
252 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 253 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 254 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 255
256 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
257 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
258 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
259 .len = IEEE80211_MAX_DATA_LEN },
260 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 262 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
263 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
264 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
265 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
266 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 267 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 268 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 269 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 270 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 271 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 272 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 273
b2e1b302
LR		 274 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
275 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
276
9f1ba906
JM		 277 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
279 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 280 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
281 .len = NL80211_MAX_SUPP_RATES },
50b12f59 282 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 283
24bdd9f4 284 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 285 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 286
6c739419 287 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 288
289 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
290 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
291 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 292 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
293 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 294
295 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
296 .len = IEEE80211_MAX_SSID_LEN },
297 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
298 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 299 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 300 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 301 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 302 [NL80211_ATTR_STA_FLAGS2] = {
303 .len = sizeof(struct nl80211_sta_flag_update),
304 },
3f77316c 305 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 306 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
307 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 308 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
309 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
310 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 311 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 312 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 313 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
314 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 315 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
316 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 317 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 318 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
319 .len = IEEE80211_MAX_DATA_LEN },
320 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 321 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 322 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 323 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 324 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 325 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
326 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 327 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 328 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
329 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 330 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 331 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 332 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 333 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 334 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 335 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 336 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 337 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 338 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 339 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
340 .len = IEEE80211_MAX_DATA_LEN },
341 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 343 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 344 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 345 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 346 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
349 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 351 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 352 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
353 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 354 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 355 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
356 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
357 .len = NL80211_HT_CAPABILITY_LEN
358 },
1d9d9213 359 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 360 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 361 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 362 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
57b5ce07 363 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
e39e5b5e 364 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
f461be3e 365 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
ed473771 366 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
53cabad7
JB		 367 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
368 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
77765eaf
VT		 369 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
370 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
55682965
JB		 371};
372
e31b8213 373/* policy for the key attributes */
b54452b0 374static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 375 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 376 [NL80211_KEY_IDX] = { .type = NLA_U8 },
377 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 378 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 379 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
380 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 381 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 382 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
383};
384
385/* policy for the key default flags */
386static const struct nla_policy
387nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
388 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
389 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 390};
391
ff1b6e69
JB		 392/* policy for WoWLAN attributes */
393static const struct nla_policy
394nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
395 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
396 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
397 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
398 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 399 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
400 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
401 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
402 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 403 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
404};
405
406static const struct nla_policy
407nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
408 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
409 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
410 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
411 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
412 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
413 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
414 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
415 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
416 },
417 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
418 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
419 },
420 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
421 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
422 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 423};
424
e5497d76
JB		 425/* policy for GTK rekey offload attributes */
426static const struct nla_policy
427nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
428 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
429 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
430 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
431};
432
a1f1c21c
LC		 433static const struct nla_policy
434nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 435 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 436 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 437 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 438};
439
a043897a
HS		 440/* ifidx get helper */
441static int nl80211_get_ifidx(struct netlink_callback *cb)
442{
443 int res;
444
445 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
446 nl80211_fam.attrbuf, nl80211_fam.maxattr,
447 nl80211_policy);
448 if (res)
449 return res;
450
451 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
452 return -EINVAL;
453
454 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
455 if (!res)
456 return -EINVAL;
457 return res;
458}
459
67748893
JB		 460static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
461 struct netlink_callback *cb,
462 struct cfg80211_registered_device **rdev,
463 struct net_device **dev)
464{
465 int ifidx = cb->args[0];
466 int err;
467
468 if (!ifidx)
469 ifidx = nl80211_get_ifidx(cb);
470 if (ifidx < 0)
471 return ifidx;
472
473 cb->args[0] = ifidx;
474
475 rtnl_lock();
476
477 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
478 if (!*dev) {
479 err = -ENODEV;
480 goto out_rtnl;
481 }
482
483 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 484 if (IS_ERR(*rdev)) {
485 err = PTR_ERR(*rdev);
67748893
JB		 486 goto out_rtnl;
487 }
488
489 return 0;
490 out_rtnl:
491 rtnl_unlock();
492 return err;
493}
494
495static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
496{
497 cfg80211_unlock_rdev(rdev);
498 rtnl_unlock();
499}
500
f4a11bb0
JB		 501/* IE validation */
502static bool is_valid_ie_attr(const struct nlattr *attr)
503{
504 const u8 *pos;
505 int len;
506
507 if (!attr)
508 return true;
509
510 pos = nla_data(attr);
511 len = nla_len(attr);
512
513 while (len) {
514 u8 elemlen;
515
516 if (len < 2)
517 return false;
518 len -= 2;
519
520 elemlen = pos[1];
521 if (elemlen > len)
522 return false;
523
524 len -= elemlen;
525 pos += 2 + elemlen;
526 }
527
528 return true;
529}
530
55682965 531/* message building helper */
15e47304 532static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 533 int flags, u8 cmd)
534{
535 /* since there is no private header just add the generic one */
15e47304 536 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 537}
538
5dab3b8a
LR		 539static int nl80211_msg_put_channel(struct sk_buff *msg,
540 struct ieee80211_channel *chan)
541{
9360ffd1
DM		 542 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
543 chan->center_freq))
544 goto nla_put_failure;
5dab3b8a 545
9360ffd1
DM		 546 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
547 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
548 goto nla_put_failure;
549 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
550 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
551 goto nla_put_failure;
552 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
553 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
554 goto nla_put_failure;
04f39047
SW		 555 if (chan->flags & IEEE80211_CHAN_RADAR) {
556 u32 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
557 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
558 goto nla_put_failure;
559 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
560 chan->dfs_state))
561 goto nla_put_failure;
562 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, time))
563 goto nla_put_failure;
564 }
50640f16
JB		 565 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
566 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
567 goto nla_put_failure;
568 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
569 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
570 goto nla_put_failure;
571 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
572 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
573 goto nla_put_failure;
574 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
575 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
576 goto nla_put_failure;
5dab3b8a 577
9360ffd1
DM		 578 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
579 DBM_TO_MBM(chan->max_power)))
580 goto nla_put_failure;
5dab3b8a
LR		 581
582 return 0;
583
584 nla_put_failure:
585 return -ENOBUFS;
586}
587
55682965
JB		 588/* netlink command implementations */
589
b9454e83
JB		 590struct key_parse {
591 struct key_params p;
592 int idx;
e31b8213 593 int type;
b9454e83 594 bool def, defmgmt;
dbd2fd65 595 bool def_uni, def_multi;
b9454e83
JB		 596};
597
598static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
599{
600 struct nlattr *tb[NL80211_KEY_MAX + 1];
601 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
602 nl80211_key_policy);
603 if (err)
604 return err;
605
606 k->def = !!tb[NL80211_KEY_DEFAULT];
607 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
608
dbd2fd65
JB		 609 if (k->def) {
610 k->def_uni = true;
611 k->def_multi = true;
612 }
613 if (k->defmgmt)
614 k->def_multi = true;
615
b9454e83
JB		 616 if (tb[NL80211_KEY_IDX])
617 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
618
619 if (tb[NL80211_KEY_DATA]) {
620 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
621 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
622 }
623
624 if (tb[NL80211_KEY_SEQ]) {
625 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
626 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
627 }
628
629 if (tb[NL80211_KEY_CIPHER])
630 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
631
e31b8213
JB		 632 if (tb[NL80211_KEY_TYPE]) {
633 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
634 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
635 return -EINVAL;
636 }
637
dbd2fd65
JB		 638 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
639 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 640 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
641 tb[NL80211_KEY_DEFAULT_TYPES],
642 nl80211_key_default_policy);
dbd2fd65
JB		 643 if (err)
644 return err;
645
646 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
647 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
648 }
649
b9454e83
JB		 650 return 0;
651}
652
653static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
654{
655 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
656 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
657 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
658 }
659
660 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
661 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
662 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
663 }
664
665 if (info->attrs[NL80211_ATTR_KEY_IDX])
666 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
667
668 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
669 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
670
671 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
672 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
673
dbd2fd65
JB		 674 if (k->def) {
675 k->def_uni = true;
676 k->def_multi = true;
677 }
678 if (k->defmgmt)
679 k->def_multi = true;
680
e31b8213
JB		 681 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
682 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
683 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
684 return -EINVAL;
685 }
686
dbd2fd65
JB		 687 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
688 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
689 int err = nla_parse_nested(
690 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
691 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
692 nl80211_key_default_policy);
693 if (err)
694 return err;
695
696 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
697 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
698 }
699
b9454e83
JB		 700 return 0;
701}
702
703static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
704{
705 int err;
706
707 memset(k, 0, sizeof(*k));
708 k->idx = -1;
e31b8213 709 k->type = -1;
b9454e83
JB		 710
711 if (info->attrs[NL80211_ATTR_KEY])
712 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
713 else
714 err = nl80211_parse_key_old(info, k);
715
716 if (err)
717 return err;
718
719 if (k->def && k->defmgmt)
720 return -EINVAL;
721
dbd2fd65
JB		 722 if (k->defmgmt) {
723 if (k->def_uni || !k->def_multi)
724 return -EINVAL;
725 }
726
b9454e83
JB		 727 if (k->idx != -1) {
728 if (k->defmgmt) {
729 if (k->idx < 4 || k->idx > 5)
730 return -EINVAL;
731 } else if (k->def) {
732 if (k->idx < 0 || k->idx > 3)
733 return -EINVAL;
734 } else {
735 if (k->idx < 0 || k->idx > 5)
736 return -EINVAL;
737 }
738 }
739
740 return 0;
741}
742
fffd0934
JB		 743static struct cfg80211_cached_keys *
744nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 745 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 746{
747 struct key_parse parse;
748 struct nlattr *key;
749 struct cfg80211_cached_keys *result;
750 int rem, err, def = 0;
751
752 result = kzalloc(sizeof(*result), GFP_KERNEL);
753 if (!result)
754 return ERR_PTR(-ENOMEM);
755
756 result->def = -1;
757 result->defmgmt = -1;
758
759 nla_for_each_nested(key, keys, rem) {
760 memset(&parse, 0, sizeof(parse));
761 parse.idx = -1;
762
763 err = nl80211_parse_key_new(key, &parse);
764 if (err)
765 goto error;
766 err = -EINVAL;
767 if (!parse.p.key)
768 goto error;
769 if (parse.idx < 0 || parse.idx > 4)
770 goto error;
771 if (parse.def) {
772 if (def)
773 goto error;
774 def = 1;
775 result->def = parse.idx;
dbd2fd65
JB		 776 if (!parse.def_uni || !parse.def_multi)
777 goto error;
fffd0934
JB		 778 } else if (parse.defmgmt)
779 goto error;
780 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 781 parse.idx, false, NULL);
fffd0934
JB		 782 if (err)
783 goto error;
784 result->params[parse.idx].cipher = parse.p.cipher;
785 result->params[parse.idx].key_len = parse.p.key_len;
786 result->params[parse.idx].key = result->data[parse.idx];
787 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 788
789 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
790 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
791 if (no_ht)
792 *no_ht = true;
793 }
fffd0934
JB		 794 }
795
796 return result;
797 error:
798 kfree(result);
799 return ERR_PTR(err);
800}
801
802static int nl80211_key_allowed(struct wireless_dev *wdev)
803{
804 ASSERT_WDEV_LOCK(wdev);
805
fffd0934
JB		 806 switch (wdev->iftype) {
807 case NL80211_IFTYPE_AP:
808 case NL80211_IFTYPE_AP_VLAN:
074ac8df 809 case NL80211_IFTYPE_P2P_GO:
ff973af7 810 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 811 break;
812 case NL80211_IFTYPE_ADHOC:
813 if (!wdev->current_bss)
814 return -ENOLINK;
815 break;
816 case NL80211_IFTYPE_STATION:
074ac8df 817 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 818 if (wdev->sme_state != CFG80211_SME_CONNECTED)
819 return -ENOLINK;
820 break;
821 default:
822 return -EINVAL;
823 }
824
825 return 0;
826}
827
7527a782
JB		 828static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
829{
830 struct nlattr *nl_modes = nla_nest_start(msg, attr);
831 int i;
832
833 if (!nl_modes)
834 goto nla_put_failure;
835
836 i = 0;
837 while (ifmodes) {
9360ffd1
DM		 838 if ((ifmodes & 1) && nla_put_flag(msg, i))
839 goto nla_put_failure;
7527a782
JB		 840 ifmodes >>= 1;
841 i++;
842 }
843
844 nla_nest_end(msg, nl_modes);
845 return 0;
846
847nla_put_failure:
848 return -ENOBUFS;
849}
850
851static int nl80211_put_iface_combinations(struct wiphy *wiphy,
852 struct sk_buff *msg)
853{
854 struct nlattr *nl_combis;
855 int i, j;
856
857 nl_combis = nla_nest_start(msg,
858 NL80211_ATTR_INTERFACE_COMBINATIONS);
859 if (!nl_combis)
860 goto nla_put_failure;
861
862 for (i = 0; i < wiphy->n_iface_combinations; i++) {
863 const struct ieee80211_iface_combination *c;
864 struct nlattr *nl_combi, *nl_limits;
865
866 c = &wiphy->iface_combinations[i];
867
868 nl_combi = nla_nest_start(msg, i + 1);
869 if (!nl_combi)
870 goto nla_put_failure;
871
872 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
873 if (!nl_limits)
874 goto nla_put_failure;
875
876 for (j = 0; j < c->n_limits; j++) {
877 struct nlattr *nl_limit;
878
879 nl_limit = nla_nest_start(msg, j + 1);
880 if (!nl_limit)
881 goto nla_put_failure;
9360ffd1
DM		 882 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
883 c->limits[j].max))
884 goto nla_put_failure;
7527a782
JB		 885 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
886 c->limits[j].types))
887 goto nla_put_failure;
888 nla_nest_end(msg, nl_limit);
889 }
890
891 nla_nest_end(msg, nl_limits);
892
9360ffd1
DM		 893 if (c->beacon_int_infra_match &&
894 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
895 goto nla_put_failure;
896 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
897 c->num_different_channels) ||
898 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
899 c->max_interfaces))
900 goto nla_put_failure;
11c4a075
SW		 901 if (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
902 c->radar_detect_widths))
903 goto nla_put_failure;
7527a782
JB		 904
905 nla_nest_end(msg, nl_combi);
906 }
907
908 nla_nest_end(msg, nl_combis);
909
910 return 0;
911nla_put_failure:
912 return -ENOBUFS;
913}
914
2a0e047e
JB		 915#ifdef CONFIG_PM
916static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
917 struct sk_buff *msg)
918{
919 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
920 struct nlattr *nl_tcp;
921
922 if (!tcp)
923 return 0;
924
925 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
926 if (!nl_tcp)
927 return -ENOBUFS;
928
929 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
930 tcp->data_payload_max))
931 return -ENOBUFS;
932
933 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
934 tcp->data_payload_max))
935 return -ENOBUFS;
936
937 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
938 return -ENOBUFS;
939
940 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
941 sizeof(*tcp->tok), tcp->tok))
942 return -ENOBUFS;
943
944 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
945 tcp->data_interval_max))
946 return -ENOBUFS;
947
948 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
949 tcp->wake_payload_max))
950 return -ENOBUFS;
951
952 nla_nest_end(msg, nl_tcp);
953 return 0;
954}
955#endif
956
15e47304 957static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
55682965
JB		 958 struct cfg80211_registered_device *dev)
959{
960 void *hdr;
ee688b00
JB		 961 struct nlattr *nl_bands, *nl_band;
962 struct nlattr *nl_freqs, *nl_freq;
963 struct nlattr *nl_rates, *nl_rate;
8fdc621d 964 struct nlattr *nl_cmds;
ee688b00
JB		 965 enum ieee80211_band band;
966 struct ieee80211_channel *chan;
967 struct ieee80211_rate *rate;
968 int i;
2e161f78
JB		 969 const struct ieee80211_txrx_stypes *mgmt_stypes =
970 dev->wiphy.mgmt_stypes;
55682965 971
15e47304 972 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
55682965
JB		 973 if (!hdr)
974 return -1;
975
9360ffd1
DM		 976 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
977 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
978 nla_put_u32(msg, NL80211_ATTR_GENERATION,
979 cfg80211_rdev_list_generation) ||
980 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
981 dev->wiphy.retry_short) ||
982 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
983 dev->wiphy.retry_long) ||
984 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
985 dev->wiphy.frag_threshold) ||
986 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
987 dev->wiphy.rts_threshold) ||
988 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
989 dev->wiphy.coverage_class) ||
990 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
991 dev->wiphy.max_scan_ssids) ||
992 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
993 dev->wiphy.max_sched_scan_ssids) ||
994 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
995 dev->wiphy.max_scan_ie_len) ||
996 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
997 dev->wiphy.max_sched_scan_ie_len) ||
998 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
999 dev->wiphy.max_match_sets))
1000 goto nla_put_failure;
1001
1002 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1003 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1004 goto nla_put_failure;
1005 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1006 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1007 goto nla_put_failure;
1008 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1009 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1010 goto nla_put_failure;
1011 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1012 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1013 goto nla_put_failure;
1014 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1015 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1016 goto nla_put_failure;
1017 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1018 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1019 goto nla_put_failure;
1020
1021 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1022 sizeof(u32) * dev->wiphy.n_cipher_suites,
1023 dev->wiphy.cipher_suites))
1024 goto nla_put_failure;
1025
1026 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1027 dev->wiphy.max_num_pmkids))
1028 goto nla_put_failure;
1029
1030 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1031 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1032 goto nla_put_failure;
1033
1034 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1035 dev->wiphy.available_antennas_tx) ||
1036 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1037 dev->wiphy.available_antennas_rx))
1038 goto nla_put_failure;
1039
1040 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1041 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1042 dev->wiphy.probe_resp_offload))
1043 goto nla_put_failure;
87bbbe22 1044
7f531e03
BR		 1045 if ((dev->wiphy.available_antennas_tx ||
1046 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 1047 u32 tx_ant = 0, rx_ant = 0;
1048 int res;
e35e4d28 1049 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
afe0cbf8 1050 if (!res) {
9360ffd1
DM		 1051 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
1052 tx_ant) ||
1053 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
1054 rx_ant))
1055 goto nla_put_failure;
afe0cbf8
BR		 1056 }
1057 }
1058
7527a782
JB		 1059 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1060 dev->wiphy.interface_modes))
f59ac048
LR		 1061 goto nla_put_failure;
1062
ee688b00
JB		 1063 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1064 if (!nl_bands)
1065 goto nla_put_failure;
1066
1067 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1068 if (!dev->wiphy.bands[band])
1069 continue;
1070
1071 nl_band = nla_nest_start(msg, band);
1072 if (!nl_band)
1073 goto nla_put_failure;
1074
d51626df 1075 /* add HT info */
9360ffd1
DM		 1076 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
1077 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1078 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
1079 &dev->wiphy.bands[band]->ht_cap.mcs) ||
1080 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1081 dev->wiphy.bands[band]->ht_cap.cap) ||
1082 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1083 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
1084 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1085 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
1086 goto nla_put_failure;
d51626df 1087
bf0c111e
MP		 1088 /* add VHT info */
1089 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1090 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1091 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1092 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1093 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1094 dev->wiphy.bands[band]->vht_cap.cap)))
1095 goto nla_put_failure;
1096
ee688b00
JB		 1097 /* add frequencies */
1098 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1099 if (!nl_freqs)
1100 goto nla_put_failure;
1101
1102 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1103 nl_freq = nla_nest_start(msg, i);
1104 if (!nl_freq)
1105 goto nla_put_failure;
1106
1107 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 1108
1109 if (nl80211_msg_put_channel(msg, chan))
1110 goto nla_put_failure;
e2f367f2 1111
ee688b00
JB		 1112 nla_nest_end(msg, nl_freq);
1113 }
1114
1115 nla_nest_end(msg, nl_freqs);
1116
1117 /* add bitrates */
1118 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1119 if (!nl_rates)
1120 goto nla_put_failure;
1121
1122 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1123 nl_rate = nla_nest_start(msg, i);
1124 if (!nl_rate)
1125 goto nla_put_failure;
1126
1127 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 1128 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1129 rate->bitrate))
1130 goto nla_put_failure;
1131 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1132 nla_put_flag(msg,
1133 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1134 goto nla_put_failure;
ee688b00
JB		 1135
1136 nla_nest_end(msg, nl_rate);
1137 }
1138
1139 nla_nest_end(msg, nl_rates);
1140
1141 nla_nest_end(msg, nl_band);
1142 }
1143 nla_nest_end(msg, nl_bands);
1144
8fdc621d
JB		 1145 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1146 if (!nl_cmds)
1147 goto nla_put_failure;
1148
1149 i = 0;
1150#define CMD(op, n) \
1151 do { \
1152 if (dev->ops->op) { \
1153 i++; \
9360ffd1
DM		 1154 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1155 goto nla_put_failure; \
8fdc621d
JB		 1156 } \
1157 } while (0)
1158
1159 CMD(add_virtual_intf, NEW_INTERFACE);
1160 CMD(change_virtual_intf, SET_INTERFACE);
1161 CMD(add_key, NEW_KEY);
8860020e 1162 CMD(start_ap, START_AP);
8fdc621d
JB		 1163 CMD(add_station, NEW_STATION);
1164 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1165 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1166 CMD(change_bss, SET_BSS);
636a5d36
JM		 1167 CMD(auth, AUTHENTICATE);
1168 CMD(assoc, ASSOCIATE);
1169 CMD(deauth, DEAUTHENTICATE);
1170 CMD(disassoc, DISASSOCIATE);
04a773ad 1171 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1172 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1173 CMD(set_pmksa, SET_PMKSA);
1174 CMD(del_pmksa, DEL_PMKSA);
1175 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1176 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1177 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1178 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1179 CMD(mgmt_tx, FRAME);
f7ca38df 1180 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1181 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1182 i++;
9360ffd1
DM		 1183 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1184 goto nla_put_failure;
463d0183 1185 }
e8c9bd5b 1186 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1187 dev->ops->join_mesh) {
aa430da4
JB		 1188 i++;
1189 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1190 goto nla_put_failure;
1191 }
e8347eba 1192 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1193 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1194 CMD(tdls_mgmt, TDLS_MGMT);
1195 CMD(tdls_oper, TDLS_OPER);
1196 }
807f8a8c
LC		 1197 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1198 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1199 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1200 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1201 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1202 i++;
9360ffd1
DM		 1203 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1204 goto nla_put_failure;
5e760230 1205 }
98104fde 1206 CMD(start_p2p_device, START_P2P_DEVICE);
f4e583c8 1207 CMD(set_mcast_rate, SET_MCAST_RATE);
8fdc621d 1208
4745fc09
KV		 1209#ifdef CONFIG_NL80211_TESTMODE
1210 CMD(testmode_cmd, TESTMODE);
1211#endif
1212
8fdc621d 1213#undef CMD
b23aa676 1214
6829c878 1215 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1216 i++;
9360ffd1
DM		 1217 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1218 goto nla_put_failure;
b23aa676
SO		 1219 }
1220
6829c878 1221 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1222 i++;
9360ffd1
DM		 1223 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1224 goto nla_put_failure;
b23aa676
SO		 1225 }
1226
8fdc621d
JB		 1227 nla_nest_end(msg, nl_cmds);
1228
7c4ef712 1229 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1230 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1231 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1232 dev->wiphy.max_remain_on_channel_duration))
1233 goto nla_put_failure;
a293911d 1234
9360ffd1
DM		 1235 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1236 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1237 goto nla_put_failure;
f7ca38df 1238
2e161f78
JB		 1239 if (mgmt_stypes) {
1240 u16 stypes;
1241 struct nlattr *nl_ftypes, *nl_ifs;
1242 enum nl80211_iftype ift;
1243
1244 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1245 if (!nl_ifs)
1246 goto nla_put_failure;
1247
1248 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1249 nl_ftypes = nla_nest_start(msg, ift);
1250 if (!nl_ftypes)
1251 goto nla_put_failure;
1252 i = 0;
1253 stypes = mgmt_stypes[ift].tx;
1254 while (stypes) {
9360ffd1
DM		 1255 if ((stypes & 1) &&
1256 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1257 (i << 4) | IEEE80211_FTYPE_MGMT))
1258 goto nla_put_failure;
2e161f78
JB		 1259 stypes >>= 1;
1260 i++;
1261 }
1262 nla_nest_end(msg, nl_ftypes);
1263 }
1264
74b70a4e
JB		 1265 nla_nest_end(msg, nl_ifs);
1266
2e161f78
JB		 1267 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1268 if (!nl_ifs)
1269 goto nla_put_failure;
1270
1271 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1272 nl_ftypes = nla_nest_start(msg, ift);
1273 if (!nl_ftypes)
1274 goto nla_put_failure;
1275 i = 0;
1276 stypes = mgmt_stypes[ift].rx;
1277 while (stypes) {
9360ffd1
DM		 1278 if ((stypes & 1) &&
1279 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1280 (i << 4) | IEEE80211_FTYPE_MGMT))
1281 goto nla_put_failure;
2e161f78
JB		 1282 stypes >>= 1;
1283 i++;
1284 }
1285 nla_nest_end(msg, nl_ftypes);
1286 }
1287 nla_nest_end(msg, nl_ifs);
1288 }
1289
dfb89c56 1290#ifdef CONFIG_PM
ff1b6e69
JB		 1291 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1292 struct nlattr *nl_wowlan;
1293
1294 nl_wowlan = nla_nest_start(msg,
1295 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1296 if (!nl_wowlan)
1297 goto nla_put_failure;
1298
9360ffd1
DM		 1299 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1301 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1303 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1305 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1307 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1309 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1310 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1311 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1312 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1313 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1314 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1315 goto nla_put_failure;
ff1b6e69
JB		 1316 if (dev->wiphy.wowlan.n_patterns) {
1317 struct nl80211_wowlan_pattern_support pat = {
1318 .max_patterns = dev->wiphy.wowlan.n_patterns,
1319 .min_pattern_len =
1320 dev->wiphy.wowlan.pattern_min_len,
1321 .max_pattern_len =
1322 dev->wiphy.wowlan.pattern_max_len,
bb92d199
AK		 1323 .max_pkt_offset =
1324 dev->wiphy.wowlan.max_pkt_offset,
ff1b6e69 1325 };
9360ffd1
DM		 1326 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1327 sizeof(pat), &pat))
1328 goto nla_put_failure;
ff1b6e69
JB		 1329 }
1330
2a0e047e
JB		 1331 if (nl80211_send_wowlan_tcp_caps(dev, msg))
1332 goto nla_put_failure;
1333
ff1b6e69
JB		 1334 nla_nest_end(msg, nl_wowlan);
1335 }
dfb89c56 1336#endif
ff1b6e69 1337
7527a782
JB		 1338 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1339 dev->wiphy.software_iftypes))
1340 goto nla_put_failure;
1341
1342 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1343 goto nla_put_failure;
1344
9360ffd1
DM		 1345 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1346 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1347 dev->wiphy.ap_sme_capa))
1348 goto nla_put_failure;
562a7480 1349
9360ffd1
DM		 1350 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1351 dev->wiphy.features))
1352 goto nla_put_failure;
1f074bd8 1353
9360ffd1
DM		 1354 if (dev->wiphy.ht_capa_mod_mask &&
1355 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1356 sizeof(*dev->wiphy.ht_capa_mod_mask),
1357 dev->wiphy.ht_capa_mod_mask))
1358 goto nla_put_failure;
7e7c8926 1359
77765eaf
VT		 1360 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1361 dev->wiphy.max_acl_mac_addrs &&
1362 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1363 dev->wiphy.max_acl_mac_addrs))
1364 goto nla_put_failure;
1365
55682965
JB		 1366 return genlmsg_end(msg, hdr);
1367
1368 nla_put_failure:
bc3ed28c
TG		 1369 genlmsg_cancel(msg, hdr);
1370 return -EMSGSIZE;
55682965
JB		 1371}
1372
1373static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1374{
1375 int idx = 0;
1376 int start = cb->args[0];
1377 struct cfg80211_registered_device *dev;
1378
a1794390 1379 mutex_lock(&cfg80211_mutex);
79c97e97 1380 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1381 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1382 continue;
b4637271 1383 if (++idx <= start)
55682965 1384 continue;
15e47304 1385 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
55682965 1386 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1387 dev) < 0) {
1388 idx--;
55682965 1389 break;
b4637271 1390 }
55682965 1391 }
a1794390 1392 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1393
1394 cb->args[0] = idx;
1395
1396 return skb->len;
1397}
1398
1399static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1400{
1401 struct sk_buff *msg;
4c476991 1402 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1403
fd2120ca 1404 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1405 if (!msg)
4c476991 1406 return -ENOMEM;
55682965 1407
15e47304 1408 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
4c476991
JB		 1409 nlmsg_free(msg);
1410 return -ENOBUFS;
1411 }
55682965 1412
134e6375 1413 return genlmsg_reply(msg, info);
55682965
JB		 1414}
1415
31888487
JM		 1416static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1417 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1418 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1419 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1420 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1421 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1422};
1423
1424static int parse_txq_params(struct nlattr *tb[],
1425 struct ieee80211_txq_params *txq_params)
1426{
a3304b0a 1427 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1428 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1429 !tb[NL80211_TXQ_ATTR_AIFS])
1430 return -EINVAL;
1431
a3304b0a 1432 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1433 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1434 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1435 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1436 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1437
a3304b0a
JB		 1438 if (txq_params->ac >= NL80211_NUM_ACS)
1439 return -EINVAL;
1440
31888487
JM		 1441 return 0;
1442}
1443
f444de05
JB		 1444static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1445{
1446 /*
cc1d2806
JB		 1447 * You can only set the channel explicitly for WDS interfaces,
1448 * all others have their channel managed via their respective
1449 * "establish a connection" command (connect, join, ...)
1450 *
1451 * For AP/GO and mesh mode, the channel can be set with the
1452 * channel userspace API, but is only stored and passed to the
1453 * low-level driver when the AP starts or the mesh is joined.
1454 * This is for backward compatibility, userspace can also give
1455 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1456 *
1457 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1458 * whatever else is going on, so they have their own special
1459 * operation to set the monitor channel if possible.
f444de05
JB		 1460 */
1461 return !wdev ||
1462 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1463 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1464 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1465 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1466}
1467
683b6d3b
JB		 1468static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1469 struct genl_info *info,
1470 struct cfg80211_chan_def *chandef)
1471{
dbeca2ea 1472 u32 control_freq;
683b6d3b
JB		 1473
1474 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1475 return -EINVAL;
1476
1477 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1478
1479 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1480 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1481 chandef->center_freq1 = control_freq;
1482 chandef->center_freq2 = 0;
683b6d3b
JB		 1483
1484 /* Primary channel not allowed */
1485 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1486 return -EINVAL;
1487
3d9d1d66
JB		 1488 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1489 enum nl80211_channel_type chantype;
1490
1491 chantype = nla_get_u32(
1492 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1493
1494 switch (chantype) {
1495 case NL80211_CHAN_NO_HT:
1496 case NL80211_CHAN_HT20:
1497 case NL80211_CHAN_HT40PLUS:
1498 case NL80211_CHAN_HT40MINUS:
1499 cfg80211_chandef_create(chandef, chandef->chan,
1500 chantype);
1501 break;
1502 default:
1503 return -EINVAL;
1504 }
1505 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1506 chandef->width =
1507 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1508 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1509 chandef->center_freq1 =
1510 nla_get_u32(
1511 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1512 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1513 chandef->center_freq2 =
1514 nla_get_u32(
1515 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1516 }
1517
9f5e8f6e 1518 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1519 return -EINVAL;
1520
9f5e8f6e
JB		 1521 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1522 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1523 return -EINVAL;
1524
683b6d3b
JB		 1525 return 0;
1526}
1527
f444de05
JB		 1528static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1529 struct wireless_dev *wdev,
1530 struct genl_info *info)
1531{
683b6d3b 1532 struct cfg80211_chan_def chandef;
f444de05 1533 int result;
e8c9bd5b
JB		 1534 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1535
1536 if (wdev)
1537 iftype = wdev->iftype;
f444de05 1538
f444de05
JB		 1539 if (!nl80211_can_set_dev_channel(wdev))
1540 return -EOPNOTSUPP;
1541
683b6d3b
JB		 1542 result = nl80211_parse_chandef(rdev, info, &chandef);
1543 if (result)
1544 return result;
f444de05
JB		 1545
1546 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1547 switch (iftype) {
aa430da4
JB		 1548 case NL80211_IFTYPE_AP:
1549 case NL80211_IFTYPE_P2P_GO:
1550 if (wdev->beacon_interval) {
1551 result = -EBUSY;
1552 break;
1553 }
683b6d3b 1554 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1555 result = -EINVAL;
1556 break;
1557 }
683b6d3b 1558 wdev->preset_chandef = chandef;
aa430da4
JB		 1559 result = 0;
1560 break;
cc1d2806 1561 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1562 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1563 break;
e8c9bd5b 1564 case NL80211_IFTYPE_MONITOR:
683b6d3b 1565 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1566 break;
aa430da4 1567 default:
e8c9bd5b 1568 result = -EINVAL;
f444de05
JB		 1569 }
1570 mutex_unlock(&rdev->devlist_mtx);
1571
1572 return result;
1573}
1574
1575static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1576{
4c476991
JB		 1577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1578 struct net_device *netdev = info->user_ptr[1];
f444de05 1579
4c476991 1580 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1581}
1582
e8347eba
BJ		 1583static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1584{
43b19952
JB		 1585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1586 struct net_device *dev = info->user_ptr[1];
1587 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1588 const u8 *bssid;
e8347eba
BJ		 1589
1590 if (!info->attrs[NL80211_ATTR_MAC])
1591 return -EINVAL;
1592
43b19952
JB		 1593 if (netif_running(dev))
1594 return -EBUSY;
e8347eba 1595
43b19952
JB		 1596 if (!rdev->ops->set_wds_peer)
1597 return -EOPNOTSUPP;
e8347eba 1598
43b19952
JB		 1599 if (wdev->iftype != NL80211_IFTYPE_WDS)
1600 return -EOPNOTSUPP;
e8347eba
BJ		 1601
1602 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1603 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1604}
1605
1606
55682965
JB		 1607static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1608{
1609 struct cfg80211_registered_device *rdev;
f444de05
JB		 1610 struct net_device *netdev = NULL;
1611 struct wireless_dev *wdev;
a1e567c8 1612 int result = 0, rem_txq_params = 0;
31888487 1613 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1614 u32 changed;
1615 u8 retry_short = 0, retry_long = 0;
1616 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1617 u8 coverage_class = 0;
55682965 1618
f444de05
JB		 1619 /*
1620 * Try to find the wiphy and netdev. Normally this
1621 * function shouldn't need the netdev, but this is
1622 * done for backward compatibility -- previously
1623 * setting the channel was done per wiphy, but now
1624 * it is per netdev. Previous userland like hostapd
1625 * also passed a netdev to set_wiphy, so that it is
1626 * possible to let that go to the right netdev!
1627 */
4bbf4d56
JB		 1628 mutex_lock(&cfg80211_mutex);
1629
f444de05
JB		 1630 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1631 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1632
1633 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1634 if (netdev && netdev->ieee80211_ptr) {
1635 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1636 mutex_lock(&rdev->mtx);
1637 } else
1638 netdev = NULL;
4bbf4d56
JB		 1639 }
1640
f444de05 1641 if (!netdev) {
878d9ec7
JB		 1642 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1643 info->attrs);
f444de05
JB		 1644 if (IS_ERR(rdev)) {
1645 mutex_unlock(&cfg80211_mutex);
4c476991 1646 return PTR_ERR(rdev);
f444de05
JB		 1647 }
1648 wdev = NULL;
1649 netdev = NULL;
1650 result = 0;
1651
1652 mutex_lock(&rdev->mtx);
71fe96bf 1653 } else
f444de05 1654 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1655
1656 /*
1657 * end workaround code, by now the rdev is available
1658 * and locked, and wdev may or may not be NULL.
1659 */
4bbf4d56
JB		 1660
1661 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1662 result = cfg80211_dev_rename(
1663 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1664
1665 mutex_unlock(&cfg80211_mutex);
1666
1667 if (result)
1668 goto bad_res;
31888487
JM		 1669
1670 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1671 struct ieee80211_txq_params txq_params;
1672 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1673
1674 if (!rdev->ops->set_txq_params) {
1675 result = -EOPNOTSUPP;
1676 goto bad_res;
1677 }
1678
f70f01c2
EP		 1679 if (!netdev) {
1680 result = -EINVAL;
1681 goto bad_res;
1682 }
1683
133a3ff2
JB		 1684 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1685 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1686 result = -EINVAL;
1687 goto bad_res;
1688 }
1689
2b5f8b0b
JB		 1690 if (!netif_running(netdev)) {
1691 result = -ENETDOWN;
1692 goto bad_res;
1693 }
1694
31888487
JM		 1695 nla_for_each_nested(nl_txq_params,
1696 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1697 rem_txq_params) {
1698 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1699 nla_data(nl_txq_params),
1700 nla_len(nl_txq_params),
1701 txq_params_policy);
1702 result = parse_txq_params(tb, &txq_params);
1703 if (result)
1704 goto bad_res;
1705
e35e4d28
HG		 1706 result = rdev_set_txq_params(rdev, netdev,
1707 &txq_params);
31888487
JM		 1708 if (result)
1709 goto bad_res;
1710 }
1711 }
55682965 1712
72bdcf34 1713 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1714 result = __nl80211_set_channel(rdev,
1715 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1716 info);
72bdcf34
JM		 1717 if (result)
1718 goto bad_res;
1719 }
1720
98d2ff8b 1721 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1722 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1723 enum nl80211_tx_power_setting type;
1724 int idx, mbm = 0;
1725
c8442118
JB		 1726 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1727 txp_wdev = NULL;
1728
98d2ff8b 1729 if (!rdev->ops->set_tx_power) {
60ea385f 1730 result = -EOPNOTSUPP;
98d2ff8b
JO		 1731 goto bad_res;
1732 }
1733
1734 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1735 type = nla_get_u32(info->attrs[idx]);
1736
1737 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1738 (type != NL80211_TX_POWER_AUTOMATIC)) {
1739 result = -EINVAL;
1740 goto bad_res;
1741 }
1742
1743 if (type != NL80211_TX_POWER_AUTOMATIC) {
1744 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1745 mbm = nla_get_u32(info->attrs[idx]);
1746 }
1747
c8442118 1748 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1749 if (result)
1750 goto bad_res;
1751 }
1752
afe0cbf8
BR		 1753 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1754 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1755 u32 tx_ant, rx_ant;
7f531e03
BR		 1756 if ((!rdev->wiphy.available_antennas_tx &&
1757 !rdev->wiphy.available_antennas_rx) ||
1758 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1759 result = -EOPNOTSUPP;
1760 goto bad_res;
1761 }
1762
1763 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1764 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1765
a7ffac95 1766 /* reject antenna configurations which don't match the
7f531e03
BR		 1767 * available antenna masks, except for the "all" mask */
1768 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1769 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1770 result = -EINVAL;
1771 goto bad_res;
1772 }
1773
7f531e03
BR		 1774 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1775 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1776
e35e4d28 1777 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1778 if (result)
1779 goto bad_res;
1780 }
1781
b9a5f8ca
JM		 1782 changed = 0;
1783
1784 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1785 retry_short = nla_get_u8(
1786 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1787 if (retry_short == 0) {
1788 result = -EINVAL;
1789 goto bad_res;
1790 }
1791 changed |= WIPHY_PARAM_RETRY_SHORT;
1792 }
1793
1794 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1795 retry_long = nla_get_u8(
1796 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1797 if (retry_long == 0) {
1798 result = -EINVAL;
1799 goto bad_res;
1800 }
1801 changed |= WIPHY_PARAM_RETRY_LONG;
1802 }
1803
1804 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1805 frag_threshold = nla_get_u32(
1806 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1807 if (frag_threshold < 256) {
1808 result = -EINVAL;
1809 goto bad_res;
1810 }
1811 if (frag_threshold != (u32) -1) {
1812 /*
1813 * Fragments (apart from the last one) are required to
1814 * have even length. Make the fragmentation code
1815 * simpler by stripping LSB should someone try to use
1816 * odd threshold value.
1817 */
1818 frag_threshold &= ~0x1;
1819 }
1820 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1821 }
1822
1823 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1824 rts_threshold = nla_get_u32(
1825 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1826 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1827 }
1828
81077e82
LT		 1829 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1830 coverage_class = nla_get_u8(
1831 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1832 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1833 }
1834
b9a5f8ca
JM		 1835 if (changed) {
1836 u8 old_retry_short, old_retry_long;
1837 u32 old_frag_threshold, old_rts_threshold;
81077e82 1838 u8 old_coverage_class;
b9a5f8ca
JM		 1839
1840 if (!rdev->ops->set_wiphy_params) {
1841 result = -EOPNOTSUPP;
1842 goto bad_res;
1843 }
1844
1845 old_retry_short = rdev->wiphy.retry_short;
1846 old_retry_long = rdev->wiphy.retry_long;
1847 old_frag_threshold = rdev->wiphy.frag_threshold;
1848 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1849 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1850
1851 if (changed & WIPHY_PARAM_RETRY_SHORT)
1852 rdev->wiphy.retry_short = retry_short;
1853 if (changed & WIPHY_PARAM_RETRY_LONG)
1854 rdev->wiphy.retry_long = retry_long;
1855 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1856 rdev->wiphy.frag_threshold = frag_threshold;
1857 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1858 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1859 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1860 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 1861
e35e4d28 1862 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 1863 if (result) {
1864 rdev->wiphy.retry_short = old_retry_short;
1865 rdev->wiphy.retry_long = old_retry_long;
1866 rdev->wiphy.frag_threshold = old_frag_threshold;
1867 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1868 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1869 }
1870 }
72bdcf34 1871
306d6112 1872 bad_res:
4bbf4d56 1873 mutex_unlock(&rdev->mtx);
f444de05
JB		 1874 if (netdev)
1875 dev_put(netdev);
55682965
JB		 1876 return result;
1877}
1878
71bbc994
JB		 1879static inline u64 wdev_id(struct wireless_dev *wdev)
1880{
1881 return (u64)wdev->identifier |
1882 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1883}
55682965 1884
683b6d3b
JB		 1885static int nl80211_send_chandef(struct sk_buff *msg,
1886 struct cfg80211_chan_def *chandef)
1887{
9f5e8f6e 1888 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 1889
683b6d3b
JB		 1890 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1891 chandef->chan->center_freq))
1892 return -ENOBUFS;
3d9d1d66
JB		 1893 switch (chandef->width) {
1894 case NL80211_CHAN_WIDTH_20_NOHT:
1895 case NL80211_CHAN_WIDTH_20:
1896 case NL80211_CHAN_WIDTH_40:
1897 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1898 cfg80211_get_chandef_type(chandef)))
1899 return -ENOBUFS;
1900 break;
1901 default:
1902 break;
1903 }
1904 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1905 return -ENOBUFS;
1906 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1907 return -ENOBUFS;
1908 if (chandef->center_freq2 &&
1909 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 1910 return -ENOBUFS;
1911 return 0;
1912}
1913
15e47304 1914static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 1915 struct cfg80211_registered_device *rdev,
72fb2abc 1916 struct wireless_dev *wdev)
55682965 1917{
72fb2abc 1918 struct net_device *dev = wdev->netdev;
55682965
JB		 1919 void *hdr;
1920
15e47304 1921 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 1922 if (!hdr)
1923 return -1;
1924
72fb2abc
JB		 1925 if (dev &&
1926 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 1927 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 1928 goto nla_put_failure;
1929
1930 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1931 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 1932 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 1933 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 1934 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1935 rdev->devlist_generation ^
1936 (cfg80211_rdev_list_generation << 2)))
1937 goto nla_put_failure;
f5ea9120 1938
5b7ccaf3 1939 if (rdev->ops->get_channel) {
683b6d3b
JB		 1940 int ret;
1941 struct cfg80211_chan_def chandef;
1942
1943 ret = rdev_get_channel(rdev, wdev, &chandef);
1944 if (ret == 0) {
1945 if (nl80211_send_chandef(msg, &chandef))
1946 goto nla_put_failure;
1947 }
d91df0e3
PF		 1948 }
1949
b84e7a05
AQ		 1950 if (wdev->ssid_len) {
1951 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1952 goto nla_put_failure;
1953 }
1954
55682965
JB		 1955 return genlmsg_end(msg, hdr);
1956
1957 nla_put_failure:
bc3ed28c
TG		 1958 genlmsg_cancel(msg, hdr);
1959 return -EMSGSIZE;
55682965
JB		 1960}
1961
1962static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1963{
1964 int wp_idx = 0;
1965 int if_idx = 0;
1966 int wp_start = cb->args[0];
1967 int if_start = cb->args[1];
f5ea9120 1968 struct cfg80211_registered_device *rdev;
55682965
JB		 1969 struct wireless_dev *wdev;
1970
a1794390 1971 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1972 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1973 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1974 continue;
bba95fef
JB		 1975 if (wp_idx < wp_start) {
1976 wp_idx++;
55682965 1977 continue;
bba95fef 1978 }
55682965
JB		 1979 if_idx = 0;
1980
f5ea9120 1981 mutex_lock(&rdev->devlist_mtx);
89a54e48 1982 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1983 if (if_idx < if_start) {
1984 if_idx++;
55682965 1985 continue;
bba95fef 1986 }
15e47304 1987 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 1988 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 1989 rdev, wdev) < 0) {
f5ea9120 1990 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1991 goto out;
1992 }
1993 if_idx++;
55682965 1994 }
f5ea9120 1995 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1996
1997 wp_idx++;
55682965 1998 }
bba95fef 1999 out:
a1794390 2000 mutex_unlock(&cfg80211_mutex);
55682965
JB		 2001
2002 cb->args[0] = wp_idx;
2003 cb->args[1] = if_idx;
2004
2005 return skb->len;
2006}
2007
2008static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2009{
2010 struct sk_buff *msg;
4c476991 2011 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 2012 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2013
fd2120ca 2014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 2015 if (!msg)
4c476991 2016 return -ENOMEM;
55682965 2017
15e47304 2018 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 2019 dev, wdev) < 0) {
4c476991
JB		 2020 nlmsg_free(msg);
2021 return -ENOBUFS;
2022 }
55682965 2023
134e6375 2024 return genlmsg_reply(msg, info);
55682965
JB		 2025}
2026
66f7ac50
MW		 2027static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2028 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2029 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2030 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2031 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2032 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2033};
2034
2035static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2036{
2037 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2038 int flag;
2039
2040 *mntrflags = 0;
2041
2042 if (!nla)
2043 return -EINVAL;
2044
2045 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2046 nla, mntr_flags_policy))
2047 return -EINVAL;
2048
2049 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2050 if (flags[flag])
2051 *mntrflags |= (1<<flag);
2052
2053 return 0;
2054}
2055
9bc383de 2056static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2057 struct net_device *netdev, u8 use_4addr,
2058 enum nl80211_iftype iftype)
9bc383de 2059{
ad4bb6f8 2060 if (!use_4addr) {
f350a0a8 2061 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2062 return -EBUSY;
9bc383de 2063 return 0;
ad4bb6f8 2064 }
9bc383de
JB		 2065
2066 switch (iftype) {
2067 case NL80211_IFTYPE_AP_VLAN:
2068 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2069 return 0;
2070 break;
2071 case NL80211_IFTYPE_STATION:
2072 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2073 return 0;
2074 break;
2075 default:
2076 break;
2077 }
2078
2079 return -EOPNOTSUPP;
2080}
2081
55682965
JB		 2082static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2083{
4c476991 2084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2085 struct vif_params params;
e36d56b6 2086 int err;
04a773ad 2087 enum nl80211_iftype otype, ntype;
4c476991 2088 struct net_device *dev = info->user_ptr[1];
92ffe055 2089 u32 _flags, *flags = NULL;
ac7f9cfa 2090 bool change = false;
55682965 2091
2ec600d6
LCC		 2092 memset(&params, 0, sizeof(params));
2093
04a773ad 2094 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2095
723b038d 2096 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2097 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2098 if (otype != ntype)
ac7f9cfa 2099 change = true;
4c476991
JB		 2100 if (ntype > NL80211_IFTYPE_MAX)
2101 return -EINVAL;
723b038d
JB		 2102 }
2103
92ffe055 2104 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2105 struct wireless_dev *wdev = dev->ieee80211_ptr;
2106
4c476991
JB		 2107 if (ntype != NL80211_IFTYPE_MESH_POINT)
2108 return -EINVAL;
29cbe68c
JB		 2109 if (netif_running(dev))
2110 return -EBUSY;
2111
2112 wdev_lock(wdev);
2113 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2114 IEEE80211_MAX_MESH_ID_LEN);
2115 wdev->mesh_id_up_len =
2116 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2117 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2118 wdev->mesh_id_up_len);
2119 wdev_unlock(wdev);
2ec600d6
LCC		 2120 }
2121
8b787643
FF		 2122 if (info->attrs[NL80211_ATTR_4ADDR]) {
2123 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2124 change = true;
ad4bb6f8 2125 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2126 if (err)
4c476991 2127 return err;
8b787643
FF		 2128 } else {
2129 params.use_4addr = -1;
2130 }
2131
92ffe055 2132 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2133 if (ntype != NL80211_IFTYPE_MONITOR)
2134 return -EINVAL;
92ffe055
JB		 2135 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2136 &_flags);
ac7f9cfa 2137 if (err)
4c476991 2138 return err;
ac7f9cfa
JB		 2139
2140 flags = &_flags;
2141 change = true;
92ffe055 2142 }
3b85875a 2143
ac7f9cfa 2144 if (change)
3d54d255 2145 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2146 else
2147 err = 0;
60719ffd 2148
9bc383de
JB		 2149 if (!err && params.use_4addr != -1)
2150 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2151
55682965
JB		 2152 return err;
2153}
2154
2155static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2156{
4c476991 2157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2158 struct vif_params params;
84efbb84 2159 struct wireless_dev *wdev;
1c90f9d4 2160 struct sk_buff *msg;
55682965
JB		 2161 int err;
2162 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2163 u32 flags;
55682965 2164
2ec600d6
LCC		 2165 memset(&params, 0, sizeof(params));
2166
55682965
JB		 2167 if (!info->attrs[NL80211_ATTR_IFNAME])
2168 return -EINVAL;
2169
2170 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2171 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2172 if (type > NL80211_IFTYPE_MAX)
2173 return -EINVAL;
2174 }
2175
79c97e97 2176 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2177 !(rdev->wiphy.interface_modes & (1 << type)))
2178 return -EOPNOTSUPP;
55682965 2179
1c18f145
AS		 2180 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2181 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2182 ETH_ALEN);
2183 if (!is_valid_ether_addr(params.macaddr))
2184 return -EADDRNOTAVAIL;
2185 }
2186
9bc383de 2187 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2188 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2189 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2190 if (err)
4c476991 2191 return err;
9bc383de 2192 }
8b787643 2193
1c90f9d4
JB		 2194 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2195 if (!msg)
2196 return -ENOMEM;
2197
66f7ac50
MW		 2198 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2199 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2200 &flags);
e35e4d28
HG		 2201 wdev = rdev_add_virtual_intf(rdev,
2202 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2203 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2204 if (IS_ERR(wdev)) {
2205 nlmsg_free(msg);
84efbb84 2206 return PTR_ERR(wdev);
1c90f9d4 2207 }
2ec600d6 2208
98104fde
JB		 2209 switch (type) {
2210 case NL80211_IFTYPE_MESH_POINT:
2211 if (!info->attrs[NL80211_ATTR_MESH_ID])
2212 break;
29cbe68c
JB		 2213 wdev_lock(wdev);
2214 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2215 IEEE80211_MAX_MESH_ID_LEN);
2216 wdev->mesh_id_up_len =
2217 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2218 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2219 wdev->mesh_id_up_len);
2220 wdev_unlock(wdev);
98104fde
JB		 2221 break;
2222 case NL80211_IFTYPE_P2P_DEVICE:
2223 /*
2224 * P2P Device doesn't have a netdev, so doesn't go
2225 * through the netdev notifier and must be added here
2226 */
2227 mutex_init(&wdev->mtx);
2228 INIT_LIST_HEAD(&wdev->event_list);
2229 spin_lock_init(&wdev->event_lock);
2230 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2231 spin_lock_init(&wdev->mgmt_registrations_lock);
2232
2233 mutex_lock(&rdev->devlist_mtx);
2234 wdev->identifier = ++rdev->wdev_id;
2235 list_add_rcu(&wdev->list, &rdev->wdev_list);
2236 rdev->devlist_generation++;
2237 mutex_unlock(&rdev->devlist_mtx);
2238 break;
2239 default:
2240 break;
29cbe68c
JB		 2241 }
2242
15e47304 2243 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2244 rdev, wdev) < 0) {
2245 nlmsg_free(msg);
2246 return -ENOBUFS;
2247 }
2248
2249 return genlmsg_reply(msg, info);
55682965
JB		 2250}
2251
2252static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2253{
4c476991 2254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2255 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2256
4c476991
JB		 2257 if (!rdev->ops->del_virtual_intf)
2258 return -EOPNOTSUPP;
55682965 2259
84efbb84
JB		 2260 /*
2261 * If we remove a wireless device without a netdev then clear
2262 * user_ptr[1] so that nl80211_post_doit won't dereference it
2263 * to check if it needs to do dev_put(). Otherwise it crashes
2264 * since the wdev has been freed, unlike with a netdev where
2265 * we need the dev_put() for the netdev to really be freed.
2266 */
2267 if (!wdev->netdev)
2268 info->user_ptr[1] = NULL;
2269
e35e4d28 2270 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2271}
2272
1d9d9213
SW		 2273static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2274{
2275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2276 struct net_device *dev = info->user_ptr[1];
2277 u16 noack_map;
2278
2279 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2280 return -EINVAL;
2281
2282 if (!rdev->ops->set_noack_map)
2283 return -EOPNOTSUPP;
2284
2285 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2286
e35e4d28 2287 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2288}
2289
41ade00f
JB		 2290struct get_key_cookie {
2291 struct sk_buff *msg;
2292 int error;
b9454e83 2293 int idx;
41ade00f
JB		 2294};
2295
2296static void get_key_callback(void *c, struct key_params *params)
2297{
b9454e83 2298 struct nlattr *key;
41ade00f
JB		 2299 struct get_key_cookie *cookie = c;
2300
9360ffd1
DM		 2301 if ((params->key &&
2302 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2303 params->key_len, params->key)) ||
2304 (params->seq &&
2305 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2306 params->seq_len, params->seq)) ||
2307 (params->cipher &&
2308 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2309 params->cipher)))
2310 goto nla_put_failure;
41ade00f 2311
b9454e83
JB		 2312 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2313 if (!key)
2314 goto nla_put_failure;
2315
9360ffd1
DM		 2316 if ((params->key &&
2317 nla_put(cookie->msg, NL80211_KEY_DATA,
2318 params->key_len, params->key)) ||
2319 (params->seq &&
2320 nla_put(cookie->msg, NL80211_KEY_SEQ,
2321 params->seq_len, params->seq)) ||
2322 (params->cipher &&
2323 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2324 params->cipher)))
2325 goto nla_put_failure;
b9454e83 2326
9360ffd1
DM		 2327 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2328 goto nla_put_failure;
b9454e83
JB		 2329
2330 nla_nest_end(cookie->msg, key);
2331
41ade00f
JB		 2332 return;
2333 nla_put_failure:
2334 cookie->error = 1;
2335}
2336
2337static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2338{
4c476991 2339 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2340 int err;
4c476991 2341 struct net_device *dev = info->user_ptr[1];
41ade00f 2342 u8 key_idx = 0;
e31b8213
JB		 2343 const u8 *mac_addr = NULL;
2344 bool pairwise;
41ade00f
JB		 2345 struct get_key_cookie cookie = {
2346 .error = 0,
2347 };
2348 void *hdr;
2349 struct sk_buff *msg;
2350
2351 if (info->attrs[NL80211_ATTR_KEY_IDX])
2352 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2353
3cfcf6ac 2354 if (key_idx > 5)
41ade00f
JB		 2355 return -EINVAL;
2356
2357 if (info->attrs[NL80211_ATTR_MAC])
2358 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2359
e31b8213
JB		 2360 pairwise = !!mac_addr;
2361 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2362 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2363 if (kt >= NUM_NL80211_KEYTYPES)
2364 return -EINVAL;
2365 if (kt != NL80211_KEYTYPE_GROUP &&
2366 kt != NL80211_KEYTYPE_PAIRWISE)
2367 return -EINVAL;
2368 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2369 }
2370
4c476991
JB		 2371 if (!rdev->ops->get_key)
2372 return -EOPNOTSUPP;
41ade00f 2373
fd2120ca 2374 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2375 if (!msg)
2376 return -ENOMEM;
41ade00f 2377
15e47304 2378 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2379 NL80211_CMD_NEW_KEY);
4c476991
JB		 2380 if (IS_ERR(hdr))
2381 return PTR_ERR(hdr);
41ade00f
JB		 2382
2383 cookie.msg = msg;
b9454e83 2384 cookie.idx = key_idx;
41ade00f 2385
9360ffd1
DM		 2386 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2387 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2388 goto nla_put_failure;
2389 if (mac_addr &&
2390 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2391 goto nla_put_failure;
41ade00f 2392
e31b8213
JB		 2393 if (pairwise && mac_addr &&
2394 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2395 return -ENOENT;
2396
e35e4d28
HG		 2397 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2398 get_key_callback);
41ade00f
JB		 2399
2400 if (err)
6c95e2a2 2401 goto free_msg;
41ade00f
JB		 2402
2403 if (cookie.error)
2404 goto nla_put_failure;
2405
2406 genlmsg_end(msg, hdr);
4c476991 2407 return genlmsg_reply(msg, info);
41ade00f
JB		 2408
2409 nla_put_failure:
2410 err = -ENOBUFS;
6c95e2a2 2411 free_msg:
41ade00f 2412 nlmsg_free(msg);
41ade00f
JB		 2413 return err;
2414}
2415
2416static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2417{
4c476991 2418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2419 struct key_parse key;
41ade00f 2420 int err;
4c476991 2421 struct net_device *dev = info->user_ptr[1];
41ade00f 2422
b9454e83
JB		 2423 err = nl80211_parse_key(info, &key);
2424 if (err)
2425 return err;
41ade00f 2426
b9454e83 2427 if (key.idx < 0)
41ade00f
JB		 2428 return -EINVAL;
2429
b9454e83
JB		 2430 /* only support setting default key */
2431 if (!key.def && !key.defmgmt)
41ade00f
JB		 2432 return -EINVAL;
2433
dbd2fd65 2434 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2435
dbd2fd65
JB		 2436 if (key.def) {
2437 if (!rdev->ops->set_default_key) {
2438 err = -EOPNOTSUPP;
2439 goto out;
2440 }
41ade00f 2441
dbd2fd65
JB		 2442 err = nl80211_key_allowed(dev->ieee80211_ptr);
2443 if (err)
2444 goto out;
2445
e35e4d28 2446 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2447 key.def_uni, key.def_multi);
2448
2449 if (err)
2450 goto out;
fffd0934 2451
3d23e349 2452#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2453 dev->ieee80211_ptr->wext.default_key = key.idx;
2454#endif
2455 } else {
2456 if (key.def_uni || !key.def_multi) {
2457 err = -EINVAL;
2458 goto out;
2459 }
2460
2461 if (!rdev->ops->set_default_mgmt_key) {
2462 err = -EOPNOTSUPP;
2463 goto out;
2464 }
2465
2466 err = nl80211_key_allowed(dev->ieee80211_ptr);
2467 if (err)
2468 goto out;
2469
e35e4d28 2470 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2471 if (err)
2472 goto out;
2473
2474#ifdef CONFIG_CFG80211_WEXT
2475 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2476#endif
dbd2fd65
JB		 2477 }
2478
2479 out:
fffd0934 2480 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2481
41ade00f
JB		 2482 return err;
2483}
2484
2485static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2486{
4c476991 2487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2488 int err;
4c476991 2489 struct net_device *dev = info->user_ptr[1];
b9454e83 2490 struct key_parse key;
e31b8213 2491 const u8 *mac_addr = NULL;
41ade00f 2492
b9454e83
JB		 2493 err = nl80211_parse_key(info, &key);
2494 if (err)
2495 return err;
41ade00f 2496
b9454e83 2497 if (!key.p.key)
41ade00f
JB		 2498 return -EINVAL;
2499
41ade00f
JB		 2500 if (info->attrs[NL80211_ATTR_MAC])
2501 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2502
e31b8213
JB		 2503 if (key.type == -1) {
2504 if (mac_addr)
2505 key.type = NL80211_KEYTYPE_PAIRWISE;
2506 else
2507 key.type = NL80211_KEYTYPE_GROUP;
2508 }
2509
2510 /* for now */
2511 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2512 key.type != NL80211_KEYTYPE_GROUP)
2513 return -EINVAL;
2514
4c476991
JB		 2515 if (!rdev->ops->add_key)
2516 return -EOPNOTSUPP;
25e47c18 2517
e31b8213
JB		 2518 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2519 key.type == NL80211_KEYTYPE_PAIRWISE,
2520 mac_addr))
4c476991 2521 return -EINVAL;
41ade00f 2522
fffd0934
JB		 2523 wdev_lock(dev->ieee80211_ptr);
2524 err = nl80211_key_allowed(dev->ieee80211_ptr);
2525 if (!err)
e35e4d28
HG		 2526 err = rdev_add_key(rdev, dev, key.idx,
2527 key.type == NL80211_KEYTYPE_PAIRWISE,
2528 mac_addr, &key.p);
fffd0934 2529 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2530
41ade00f
JB		 2531 return err;
2532}
2533
2534static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2535{
4c476991 2536 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2537 int err;
4c476991 2538 struct net_device *dev = info->user_ptr[1];
41ade00f 2539 u8 *mac_addr = NULL;
b9454e83 2540 struct key_parse key;
41ade00f 2541
b9454e83
JB		 2542 err = nl80211_parse_key(info, &key);
2543 if (err)
2544 return err;
41ade00f
JB		 2545
2546 if (info->attrs[NL80211_ATTR_MAC])
2547 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2548
e31b8213
JB		 2549 if (key.type == -1) {
2550 if (mac_addr)
2551 key.type = NL80211_KEYTYPE_PAIRWISE;
2552 else
2553 key.type = NL80211_KEYTYPE_GROUP;
2554 }
2555
2556 /* for now */
2557 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2558 key.type != NL80211_KEYTYPE_GROUP)
2559 return -EINVAL;
2560
4c476991
JB		 2561 if (!rdev->ops->del_key)
2562 return -EOPNOTSUPP;
41ade00f 2563
fffd0934
JB		 2564 wdev_lock(dev->ieee80211_ptr);
2565 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2566
2567 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2568 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2569 err = -ENOENT;
2570
fffd0934 2571 if (!err)
e35e4d28
HG		 2572 err = rdev_del_key(rdev, dev, key.idx,
2573 key.type == NL80211_KEYTYPE_PAIRWISE,
2574 mac_addr);
41ade00f 2575
3d23e349 2576#ifdef CONFIG_CFG80211_WEXT
08645126 2577 if (!err) {
b9454e83 2578 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2579 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2580 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2581 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2582 }
2583#endif
fffd0934 2584 wdev_unlock(dev->ieee80211_ptr);
08645126 2585
41ade00f
JB		 2586 return err;
2587}
2588
77765eaf
VT		 2589/* This function returns an error or the number of nested attributes */
2590static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2591{
2592 struct nlattr *attr;
2593 int n_entries = 0, tmp;
2594
2595 nla_for_each_nested(attr, nl_attr, tmp) {
2596 if (nla_len(attr) != ETH_ALEN)
2597 return -EINVAL;
2598
2599 n_entries++;
2600 }
2601
2602 return n_entries;
2603}
2604
2605/*
2606 * This function parses ACL information and allocates memory for ACL data.
2607 * On successful return, the calling function is responsible to free the
2608 * ACL buffer returned by this function.
2609 */
2610static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2611 struct genl_info *info)
2612{
2613 enum nl80211_acl_policy acl_policy;
2614 struct nlattr *attr;
2615 struct cfg80211_acl_data *acl;
2616 int i = 0, n_entries, tmp;
2617
2618 if (!wiphy->max_acl_mac_addrs)
2619 return ERR_PTR(-EOPNOTSUPP);
2620
2621 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2622 return ERR_PTR(-EINVAL);
2623
2624 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2625 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2626 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2627 return ERR_PTR(-EINVAL);
2628
2629 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2630 return ERR_PTR(-EINVAL);
2631
2632 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2633 if (n_entries < 0)
2634 return ERR_PTR(n_entries);
2635
2636 if (n_entries > wiphy->max_acl_mac_addrs)
2637 return ERR_PTR(-ENOTSUPP);
2638
2639 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2640 GFP_KERNEL);
2641 if (!acl)
2642 return ERR_PTR(-ENOMEM);
2643
2644 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2645 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2646 i++;
2647 }
2648
2649 acl->n_acl_entries = n_entries;
2650 acl->acl_policy = acl_policy;
2651
2652 return acl;
2653}
2654
2655static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2656{
2657 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2658 struct net_device *dev = info->user_ptr[1];
2659 struct cfg80211_acl_data *acl;
2660 int err;
2661
2662 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2663 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2664 return -EOPNOTSUPP;
2665
2666 if (!dev->ieee80211_ptr->beacon_interval)
2667 return -EINVAL;
2668
2669 acl = parse_acl_data(&rdev->wiphy, info);
2670 if (IS_ERR(acl))
2671 return PTR_ERR(acl);
2672
2673 err = rdev_set_mac_acl(rdev, dev, acl);
2674
2675 kfree(acl);
2676
2677 return err;
2678}
2679
8860020e
JB		 2680static int nl80211_parse_beacon(struct genl_info *info,
2681 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2682{
8860020e 2683 bool haveinfo = false;
ed1b6cc7 2684
9946ecfb
JM		 2685 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2686 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2687 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2688 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2689 return -EINVAL;
2690
8860020e 2691 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2692
ed1b6cc7 2693 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2694 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2695 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2696 if (!bcn->head_len)
2697 return -EINVAL;
2698 haveinfo = true;
ed1b6cc7
JB		 2699 }
2700
2701 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2702 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2703 bcn->tail_len =
ed1b6cc7 2704 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2705 haveinfo = true;
ed1b6cc7
JB		 2706 }
2707
4c476991
JB		 2708 if (!haveinfo)
2709 return -EINVAL;
3b85875a 2710
9946ecfb 2711 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2712 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2713 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2714 }
2715
2716 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2717 bcn->proberesp_ies =
9946ecfb 2718 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2719 bcn->proberesp_ies_len =
9946ecfb
JM		 2720 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2721 }
2722
2723 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2724 bcn->assocresp_ies =
9946ecfb 2725 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2726 bcn->assocresp_ies_len =
9946ecfb
JM		 2727 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2728 }
2729
00f740e1 2730 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2731 bcn->probe_resp =
00f740e1 2732 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2733 bcn->probe_resp_len =
00f740e1
AN		 2734 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2735 }
2736
8860020e
JB		 2737 return 0;
2738}
2739
46c1dd0c
FF		 2740static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2741 struct cfg80211_ap_settings *params)
2742{
2743 struct wireless_dev *wdev;
2744 bool ret = false;
2745
2746 mutex_lock(&rdev->devlist_mtx);
2747
89a54e48 2748 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2749 if (wdev->iftype != NL80211_IFTYPE_AP &&
2750 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2751 continue;
2752
683b6d3b 2753 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2754 continue;
2755
683b6d3b 2756 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2757 ret = true;
2758 break;
2759 }
2760
2761 mutex_unlock(&rdev->devlist_mtx);
2762
2763 return ret;
2764}
2765
e39e5b5e
JM		 2766static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2767 enum nl80211_auth_type auth_type,
2768 enum nl80211_commands cmd)
2769{
2770 if (auth_type > NL80211_AUTHTYPE_MAX)
2771 return false;
2772
2773 switch (cmd) {
2774 case NL80211_CMD_AUTHENTICATE:
2775 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2776 auth_type == NL80211_AUTHTYPE_SAE)
2777 return false;
2778 return true;
2779 case NL80211_CMD_CONNECT:
2780 case NL80211_CMD_START_AP:
2781 /* SAE not supported yet */
2782 if (auth_type == NL80211_AUTHTYPE_SAE)
2783 return false;
2784 return true;
2785 default:
2786 return false;
2787 }
2788}
2789
8860020e
JB		 2790static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2791{
2792 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2793 struct net_device *dev = info->user_ptr[1];
2794 struct wireless_dev *wdev = dev->ieee80211_ptr;
2795 struct cfg80211_ap_settings params;
2796 int err;
04f39047 2797 u8 radar_detect_width = 0;
8860020e
JB		 2798
2799 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2800 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2801 return -EOPNOTSUPP;
2802
2803 if (!rdev->ops->start_ap)
2804 return -EOPNOTSUPP;
2805
2806 if (wdev->beacon_interval)
2807 return -EALREADY;
2808
2809 memset(&params, 0, sizeof(params));
2810
2811 /* these are required for START_AP */
2812 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2813 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2814 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2815 return -EINVAL;
2816
2817 err = nl80211_parse_beacon(info, &params.beacon);
2818 if (err)
2819 return err;
2820
2821 params.beacon_interval =
2822 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2823 params.dtim_period =
2824 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2825
2826 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2827 if (err)
2828 return err;
2829
2830 /*
2831 * In theory, some of these attributes should be required here
2832 * but since they were not used when the command was originally
2833 * added, keep them optional for old user space programs to let
2834 * them continue to work with drivers that do not need the
2835 * additional information -- drivers must check!
2836 */
2837 if (info->attrs[NL80211_ATTR_SSID]) {
2838 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2839 params.ssid_len =
2840 nla_len(info->attrs[NL80211_ATTR_SSID]);
2841 if (params.ssid_len == 0 ||
2842 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2843 return -EINVAL;
2844 }
2845
2846 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2847 params.hidden_ssid = nla_get_u32(
2848 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2849 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2850 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2851 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2852 return -EINVAL;
2853 }
2854
2855 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2856
2857 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2858 params.auth_type = nla_get_u32(
2859 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 2860 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2861 NL80211_CMD_START_AP))
8860020e
JB		 2862 return -EINVAL;
2863 } else
2864 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2865
2866 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2867 NL80211_MAX_NR_CIPHER_SUITES);
2868 if (err)
2869 return err;
2870
1b658f11
VT		 2871 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2872 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2873 return -EOPNOTSUPP;
2874 params.inactivity_timeout = nla_get_u16(
2875 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2876 }
2877
53cabad7
JB		 2878 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2879 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2880 return -EINVAL;
2881 params.p2p_ctwindow =
2882 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2883 if (params.p2p_ctwindow > 127)
2884 return -EINVAL;
2885 if (params.p2p_ctwindow != 0 &&
2886 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2887 return -EINVAL;
2888 }
2889
2890 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2891 u8 tmp;
2892
2893 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2894 return -EINVAL;
2895 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2896 if (tmp > 1)
2897 return -EINVAL;
2898 params.p2p_opp_ps = tmp;
2899 if (params.p2p_opp_ps != 0 &&
2900 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2901 return -EINVAL;
2902 }
2903
aa430da4 2904 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 2905 err = nl80211_parse_chandef(rdev, info, &params.chandef);
2906 if (err)
2907 return err;
2908 } else if (wdev->preset_chandef.chan) {
2909 params.chandef = wdev->preset_chandef;
46c1dd0c 2910 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2911 return -EINVAL;
2912
683b6d3b 2913 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 2914 return -EINVAL;
2915
04f39047
SW		 2916 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
2917 if (err < 0)
2918 return err;
2919 if (err) {
2920 radar_detect_width = BIT(params.chandef.width);
2921 params.radar_required = true;
2922 }
2923
e4e32459 2924 mutex_lock(&rdev->devlist_mtx);
04f39047
SW		 2925 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
2926 params.chandef.chan,
2927 CHAN_MODE_SHARED,
2928 radar_detect_width);
e4e32459
MK		 2929 mutex_unlock(&rdev->devlist_mtx);
2930
2931 if (err)
2932 return err;
2933
77765eaf
VT		 2934 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
2935 params.acl = parse_acl_data(&rdev->wiphy, info);
2936 if (IS_ERR(params.acl))
2937 return PTR_ERR(params.acl);
2938 }
2939
e35e4d28 2940 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 2941 if (!err) {
683b6d3b 2942 wdev->preset_chandef = params.chandef;
8860020e 2943 wdev->beacon_interval = params.beacon_interval;
683b6d3b 2944 wdev->channel = params.chandef.chan;
06e191e2
AQ		 2945 wdev->ssid_len = params.ssid_len;
2946 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 2947 }
77765eaf
VT		 2948
2949 kfree(params.acl);
2950
56d1893d 2951 return err;
ed1b6cc7
JB		 2952}
2953
8860020e
JB		 2954static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2955{
2956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2957 struct net_device *dev = info->user_ptr[1];
2958 struct wireless_dev *wdev = dev->ieee80211_ptr;
2959 struct cfg80211_beacon_data params;
2960 int err;
2961
2962 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2963 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2964 return -EOPNOTSUPP;
2965
2966 if (!rdev->ops->change_beacon)
2967 return -EOPNOTSUPP;
2968
2969 if (!wdev->beacon_interval)
2970 return -EINVAL;
2971
2972 err = nl80211_parse_beacon(info, &params);
2973 if (err)
2974 return err;
2975
e35e4d28 2976 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 2977}
2978
2979static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2980{
4c476991
JB		 2981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2982 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2983
60771780 2984 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2985}
2986
5727ef1b
JB		 2987static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2988 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2989 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2990 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2991 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2992 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2993 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2994};
2995
eccb8e8f 2996static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2997 enum nl80211_iftype iftype,
eccb8e8f 2998 struct station_parameters *params)
5727ef1b
JB		 2999{
3000 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 3001 struct nlattr *nla;
5727ef1b
JB		 3002 int flag;
3003
eccb8e8f
JB		 3004 /*
3005 * Try parsing the new attribute first so userspace
3006 * can specify both for older kernels.
3007 */
3008 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3009 if (nla) {
3010 struct nl80211_sta_flag_update *sta_flags;
3011
3012 sta_flags = nla_data(nla);
3013 params->sta_flags_mask = sta_flags->mask;
3014 params->sta_flags_set = sta_flags->set;
3015 if ((params->sta_flags_mask |
3016 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3017 return -EINVAL;
3018 return 0;
3019 }
3020
3021 /* if present, parse the old attribute */
5727ef1b 3022
eccb8e8f 3023 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 3024 if (!nla)
3025 return 0;
3026
3027 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3028 nla, sta_flags_policy))
3029 return -EINVAL;
3030
bdd3ae3d
JB		 3031 /*
3032 * Only allow certain flags for interface types so that
3033 * other attributes are silently ignored. Remember that
3034 * this is backward compatibility code with old userspace
3035 * and shouldn't be hit in other cases anyway.
3036 */
3037 switch (iftype) {
3038 case NL80211_IFTYPE_AP:
3039 case NL80211_IFTYPE_AP_VLAN:
3040 case NL80211_IFTYPE_P2P_GO:
3041 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3042 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3043 BIT(NL80211_STA_FLAG_WME) |
3044 BIT(NL80211_STA_FLAG_MFP);
3045 break;
3046 case NL80211_IFTYPE_P2P_CLIENT:
3047 case NL80211_IFTYPE_STATION:
3048 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3049 BIT(NL80211_STA_FLAG_TDLS_PEER);
3050 break;
3051 case NL80211_IFTYPE_MESH_POINT:
3052 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3053 BIT(NL80211_STA_FLAG_MFP) |
3054 BIT(NL80211_STA_FLAG_AUTHORIZED);
3055 default:
3056 return -EINVAL;
3057 }
5727ef1b 3058
3383b5a6
JB		 3059 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3060 if (flags[flag]) {
eccb8e8f 3061 params->sta_flags_set |= (1<<flag);
5727ef1b 3062
3383b5a6
JB		 3063 /* no longer support new API additions in old API */
3064 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3065 return -EINVAL;
3066 }
3067 }
3068
5727ef1b
JB		 3069 return 0;
3070}
3071
c8dcfd8a
FF		 3072static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3073 int attr)
3074{
3075 struct nlattr *rate;
8eb41c8d
VK		 3076 u32 bitrate;
3077 u16 bitrate_compat;
c8dcfd8a
FF		 3078
3079 rate = nla_nest_start(msg, attr);
3080 if (!rate)
db9c64cf 3081 return false;
c8dcfd8a
FF		 3082
3083 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3084 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3085 /* report 16-bit bitrate only if we can */
3086 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3087 if (bitrate > 0 &&
3088 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3089 return false;
3090 if (bitrate_compat > 0 &&
3091 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3092 return false;
3093
3094 if (info->flags & RATE_INFO_FLAGS_MCS) {
3095 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3096 return false;
3097 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3098 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3099 return false;
3100 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3101 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3102 return false;
3103 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3104 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3105 return false;
3106 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3107 return false;
3108 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3109 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3110 return false;
3111 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3112 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3113 return false;
3114 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3115 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3116 return false;
3117 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3118 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3119 return false;
3120 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3121 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3122 return false;
3123 }
c8dcfd8a
FF		 3124
3125 nla_nest_end(msg, rate);
3126 return true;
c8dcfd8a
FF		 3127}
3128
15e47304 3129static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3130 int flags,
3131 struct cfg80211_registered_device *rdev,
3132 struct net_device *dev,
98b62183 3133 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3134{
3135 void *hdr;
f4263c98 3136 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3137
15e47304 3138 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3139 if (!hdr)
3140 return -1;
3141
9360ffd1
DM		 3142 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3143 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3144 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3145 goto nla_put_failure;
f5ea9120 3146
2ec600d6
LCC		 3147 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3148 if (!sinfoattr)
fd5b74dc 3149 goto nla_put_failure;
9360ffd1
DM		 3150 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3151 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3152 sinfo->connected_time))
3153 goto nla_put_failure;
3154 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3155 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3156 sinfo->inactive_time))
3157 goto nla_put_failure;
42745e03
VK		 3158 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3159 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3160 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3161 (u32)sinfo->rx_bytes))
9360ffd1 3162 goto nla_put_failure;
42745e03
VK		 3163 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3164 NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3165 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3166 (u32)sinfo->tx_bytes))
3167 goto nla_put_failure;
3168 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3169 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3170 sinfo->rx_bytes))
3171 goto nla_put_failure;
3172 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3173 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3174 sinfo->tx_bytes))
3175 goto nla_put_failure;
3176 if ((sinfo->filled & STATION_INFO_LLID) &&
3177 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3178 goto nla_put_failure;
3179 if ((sinfo->filled & STATION_INFO_PLID) &&
3180 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3181 goto nla_put_failure;
3182 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3183 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3184 sinfo->plink_state))
3185 goto nla_put_failure;
66266b3a
JL		 3186 switch (rdev->wiphy.signal_type) {
3187 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3188 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3189 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3190 sinfo->signal))
3191 goto nla_put_failure;
3192 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3193 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3194 sinfo->signal_avg))
3195 goto nla_put_failure;
66266b3a
JL		 3196 break;
3197 default:
3198 break;
3199 }
420e7fab 3200 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3201 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3202 NL80211_STA_INFO_TX_BITRATE))
3203 goto nla_put_failure;
3204 }
3205 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3206 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3207 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3208 goto nla_put_failure;
420e7fab 3209 }
9360ffd1
DM		 3210 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3211 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3212 sinfo->rx_packets))
3213 goto nla_put_failure;
3214 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3215 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3216 sinfo->tx_packets))
3217 goto nla_put_failure;
3218 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3219 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3220 sinfo->tx_retries))
3221 goto nla_put_failure;
3222 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3223 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3224 sinfo->tx_failed))
3225 goto nla_put_failure;
3226 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3227 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3228 sinfo->beacon_loss_count))
3229 goto nla_put_failure;
3b1c5a53
MP		 3230 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3231 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3232 sinfo->local_pm))
3233 goto nla_put_failure;
3234 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3235 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3236 sinfo->peer_pm))
3237 goto nla_put_failure;
3238 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3239 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3240 sinfo->nonpeer_pm))
3241 goto nla_put_failure;
f4263c98
PS		 3242 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3243 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3244 if (!bss_param)
3245 goto nla_put_failure;
3246
9360ffd1
DM		 3247 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3248 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3249 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3250 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3251 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3252 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3253 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3254 sinfo->bss_param.dtim_period) ||
3255 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3256 sinfo->bss_param.beacon_interval))
3257 goto nla_put_failure;
f4263c98
PS		 3258
3259 nla_nest_end(msg, bss_param);
3260 }
9360ffd1
DM		 3261 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3262 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3263 sizeof(struct nl80211_sta_flag_update),
3264 &sinfo->sta_flags))
3265 goto nla_put_failure;
7eab0f64
JL		 3266 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3267 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3268 sinfo->t_offset))
3269 goto nla_put_failure;
2ec600d6 3270 nla_nest_end(msg, sinfoattr);
fd5b74dc 3271
9360ffd1
DM		 3272 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3273 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3274 sinfo->assoc_req_ies))
3275 goto nla_put_failure;
50d3dfb7 3276
fd5b74dc
JB		 3277 return genlmsg_end(msg, hdr);
3278
3279 nla_put_failure:
bc3ed28c
TG		 3280 genlmsg_cancel(msg, hdr);
3281 return -EMSGSIZE;
fd5b74dc
JB		 3282}
3283
2ec600d6 3284static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3285 struct netlink_callback *cb)
2ec600d6 3286{
2ec600d6
LCC		 3287 struct station_info sinfo;
3288 struct cfg80211_registered_device *dev;
bba95fef 3289 struct net_device *netdev;
2ec600d6 3290 u8 mac_addr[ETH_ALEN];
bba95fef 3291 int sta_idx = cb->args[1];
2ec600d6 3292 int err;
2ec600d6 3293
67748893
JB		 3294 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3295 if (err)
3296 return err;
bba95fef
JB		 3297
3298 if (!dev->ops->dump_station) {
eec60b03 3299 err = -EOPNOTSUPP;
bba95fef
JB		 3300 goto out_err;
3301 }
3302
bba95fef 3303 while (1) {
f612cedf 3304 memset(&sinfo, 0, sizeof(sinfo));
e35e4d28
HG		 3305 err = rdev_dump_station(dev, netdev, sta_idx,
3306 mac_addr, &sinfo);
bba95fef
JB		 3307 if (err == -ENOENT)
3308 break;
3309 if (err)
3b85875a 3310 goto out_err;
bba95fef
JB		 3311
3312 if (nl80211_send_station(skb,
15e47304 3313 NETLINK_CB(cb->skb).portid,
bba95fef 3314 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 3315 dev, netdev, mac_addr,
bba95fef
JB		 3316 &sinfo) < 0)
3317 goto out;
3318
3319 sta_idx++;
3320 }
3321
3322
3323 out:
3324 cb->args[1] = sta_idx;
3325 err = skb->len;
bba95fef 3326 out_err:
67748893 3327 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 3328
3329 return err;
2ec600d6 3330}
fd5b74dc 3331
5727ef1b
JB		 3332static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3333{
4c476991
JB		 3334 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3335 struct net_device *dev = info->user_ptr[1];
2ec600d6 3336 struct station_info sinfo;
fd5b74dc
JB		 3337 struct sk_buff *msg;
3338 u8 *mac_addr = NULL;
4c476991 3339 int err;
fd5b74dc 3340
2ec600d6 3341 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3342
3343 if (!info->attrs[NL80211_ATTR_MAC])
3344 return -EINVAL;
3345
3346 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3347
4c476991
JB		 3348 if (!rdev->ops->get_station)
3349 return -EOPNOTSUPP;
3b85875a 3350
e35e4d28 3351 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3352 if (err)
4c476991 3353 return err;
2ec600d6 3354
fd2120ca 3355 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3356 if (!msg)
4c476991 3357 return -ENOMEM;
fd5b74dc 3358
15e47304 3359 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3360 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3361 nlmsg_free(msg);
3362 return -ENOBUFS;
3363 }
3b85875a 3364
4c476991 3365 return genlmsg_reply(msg, info);
5727ef1b
JB		 3366}
3367
3368/*
c258d2de 3369 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3370 */
80b99899
JB		 3371static struct net_device *get_vlan(struct genl_info *info,
3372 struct cfg80211_registered_device *rdev)
5727ef1b 3373{
463d0183 3374 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3375 struct net_device *v;
3376 int ret;
3377
3378 if (!vlanattr)
3379 return NULL;
3380
3381 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3382 if (!v)
3383 return ERR_PTR(-ENODEV);
3384
3385 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3386 ret = -EINVAL;
3387 goto error;
5727ef1b 3388 }
80b99899
JB		 3389
3390 if (!netif_running(v)) {
3391 ret = -ENETDOWN;
3392 goto error;
3393 }
3394
3395 return v;
3396 error:
3397 dev_put(v);
3398 return ERR_PTR(ret);
5727ef1b
JB		 3399}
3400
3401static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3402{
4c476991 3403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3404 int err;
4c476991 3405 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3406 struct station_parameters params;
3407 u8 *mac_addr = NULL;
3408
3409 memset(&params, 0, sizeof(params));
3410
3411 params.listen_interval = -1;
57cf8043 3412 params.plink_state = -1;
5727ef1b
JB		 3413
3414 if (info->attrs[NL80211_ATTR_STA_AID])
3415 return -EINVAL;
3416
3417 if (!info->attrs[NL80211_ATTR_MAC])
3418 return -EINVAL;
3419
3420 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3421
3422 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3423 params.supported_rates =
3424 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3425 params.supported_rates_len =
3426 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3427 }
3428
ba23d206
JB		 3429 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL] ||
3430 info->attrs[NL80211_ATTR_HT_CAPABILITY])
3431 return -EINVAL;
36aedc90 3432
bdd90d5e
JB		 3433 if (!rdev->ops->change_station)
3434 return -EOPNOTSUPP;
3435
bdd3ae3d 3436 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3437 return -EINVAL;
3438
2ec600d6
LCC		 3439 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3440 params.plink_action =
3441 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3442
9c3990aa
JC		 3443 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3444 params.plink_state =
3445 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3446
3b1c5a53
MP		 3447 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3448 enum nl80211_mesh_power_mode pm = nla_get_u32(
3449 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3450
3451 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3452 pm > NL80211_MESH_POWER_MAX)
3453 return -EINVAL;
3454
3455 params.local_pm = pm;
3456 }
3457
a97f4424
JB		 3458 switch (dev->ieee80211_ptr->iftype) {
3459 case NL80211_IFTYPE_AP:
3460 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3461 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3462 /* disallow mesh-specific things */
3463 if (params.plink_action)
bdd90d5e 3464 return -EINVAL;
3b1c5a53
MP		 3465 if (params.local_pm)
3466 return -EINVAL;
bdd90d5e
JB		 3467
3468 /* TDLS can't be set, ... */
3469 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3470 return -EINVAL;
3471 /*
3472 * ... but don't bother the driver with it. This works around
3473 * a hostapd/wpa_supplicant issue -- it always includes the
3474 * TLDS_PEER flag in the mask even for AP mode.
3475 */
3476 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3477
3478 /* accept only the listed bits */
3479 if (params.sta_flags_mask &
3480 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
d582cffb
JB		 3481 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3482 BIT(NL80211_STA_FLAG_ASSOCIATED) |
bdd90d5e
JB		 3483 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3484 BIT(NL80211_STA_FLAG_WME) |
3485 BIT(NL80211_STA_FLAG_MFP)))
3486 return -EINVAL;
3487
d582cffb
JB		 3488 /* but authenticated/associated only if driver handles it */
3489 if (!(rdev->wiphy.features &
3490 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3491 params.sta_flags_mask &
3492 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3493 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3494 return -EINVAL;
3495
ba23d206
JB		 3496 /* reject other things that can't change */
3497 if (params.supported_rates)
3498 return -EINVAL;
3499
bdd90d5e
JB		 3500 /* must be last in here for error handling */
3501 params.vlan = get_vlan(info, rdev);
3502 if (IS_ERR(params.vlan))
3503 return PTR_ERR(params.vlan);
a97f4424 3504 break;
074ac8df 3505 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3506 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3507 /*
3508 * Don't allow userspace to change the TDLS_PEER flag,
3509 * but silently ignore attempts to change it since we
3510 * don't have state here to verify that it doesn't try
3511 * to change the flag.
3512 */
3513 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 3514 /* fall through */
3515 case NL80211_IFTYPE_ADHOC:
3516 /* disallow things sta doesn't support */
3517 if (params.plink_action)
3518 return -EINVAL;
3b1c5a53
MP		 3519 if (params.local_pm)
3520 return -EINVAL;
bdd90d5e
JB		 3521 /* reject any changes other than AUTHORIZED */
3522 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3523 return -EINVAL;
a97f4424
JB		 3524 break;
3525 case NL80211_IFTYPE_MESH_POINT:
3526 /* disallow things mesh doesn't support */
3527 if (params.vlan)
bdd90d5e 3528 return -EINVAL;
ba23d206 3529 if (params.supported_rates)
bdd90d5e
JB		 3530 return -EINVAL;
3531 /*
3532 * No special handling for TDLS here -- the userspace
3533 * mesh code doesn't have this bug.
3534 */
b39c48fa
JC		 3535 if (params.sta_flags_mask &
3536 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3537 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3538 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3539 return -EINVAL;
a97f4424
JB		 3540 break;
3541 default:
bdd90d5e 3542 return -EOPNOTSUPP;
034d655e
JB		 3543 }
3544
bdd90d5e 3545 /* be aware of params.vlan when changing code here */
5727ef1b 3546
e35e4d28 3547 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3548
5727ef1b
JB		 3549 if (params.vlan)
3550 dev_put(params.vlan);
3b85875a 3551
5727ef1b
JB		 3552 return err;
3553}
3554
c75786c9
EP		 3555static struct nla_policy
3556nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3557 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3558 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3559};
3560
5727ef1b
JB		 3561static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3562{
4c476991 3563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3564 int err;
4c476991 3565 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3566 struct station_parameters params;
3567 u8 *mac_addr = NULL;
3568
3569 memset(&params, 0, sizeof(params));
3570
3571 if (!info->attrs[NL80211_ATTR_MAC])
3572 return -EINVAL;
3573
5727ef1b
JB		 3574 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3575 return -EINVAL;
3576
3577 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3578 return -EINVAL;
3579
0e956c13
TLSC		 3580 if (!info->attrs[NL80211_ATTR_STA_AID])
3581 return -EINVAL;
3582
5727ef1b
JB		 3583 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3584 params.supported_rates =
3585 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3586 params.supported_rates_len =
3587 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3588 params.listen_interval =
3589 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3590
0e956c13
TLSC		 3591 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3592 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3593 return -EINVAL;
51b50fbe 3594
36aedc90
JM		 3595 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3596 params.ht_capa =
3597 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3598
f461be3e
MP		 3599 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3600 params.vht_capa =
3601 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3602
96b78dff
JC		 3603 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3604 params.plink_action =
3605 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3606
bdd90d5e
JB		 3607 if (!rdev->ops->add_station)
3608 return -EOPNOTSUPP;
3609
bdd3ae3d 3610 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3611 return -EINVAL;
3612
bdd90d5e
JB		 3613 switch (dev->ieee80211_ptr->iftype) {
3614 case NL80211_IFTYPE_AP:
3615 case NL80211_IFTYPE_AP_VLAN:
3616 case NL80211_IFTYPE_P2P_GO:
3617 /* parse WME attributes if sta is WME capable */
3618 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3619 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3620 info->attrs[NL80211_ATTR_STA_WME]) {
3621 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3622 struct nlattr *nla;
3623
3624 nla = info->attrs[NL80211_ATTR_STA_WME];
3625 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3626 nl80211_sta_wme_policy);
3627 if (err)
3628 return err;
3629
3630 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3631 params.uapsd_queues =
3632 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3633 if (params.uapsd_queues &
3634 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3635 return -EINVAL;
c75786c9 3636
bdd90d5e
JB		 3637 if (tb[NL80211_STA_WME_MAX_SP])
3638 params.max_sp =
3639 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3640
bdd90d5e
JB		 3641 if (params.max_sp &
3642 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3643 return -EINVAL;
4319e193 3644
bdd90d5e
JB		 3645 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3646 }
3647 /* TDLS peers cannot be added */
3648 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3649 return -EINVAL;
bdd90d5e
JB		 3650 /* but don't bother the driver with it */
3651 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3652
d582cffb
JB		 3653 /* allow authenticated/associated only if driver handles it */
3654 if (!(rdev->wiphy.features &
3655 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3656 params.sta_flags_mask &
3657 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3658 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3659 return -EINVAL;
3660
bdd90d5e
JB		 3661 /* must be last in here for error handling */
3662 params.vlan = get_vlan(info, rdev);
3663 if (IS_ERR(params.vlan))
3664 return PTR_ERR(params.vlan);
3665 break;
3666 case NL80211_IFTYPE_MESH_POINT:
d582cffb
JB		 3667 /* associated is disallowed */
3668 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3669 return -EINVAL;
bdd90d5e
JB		 3670 /* TDLS peers cannot be added */
3671 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3672 return -EINVAL;
3673 break;
3674 case NL80211_IFTYPE_STATION:
d582cffb
JB		 3675 /* associated is disallowed */
3676 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3677 return -EINVAL;
bdd90d5e
JB		 3678 /* Only TDLS peers can be added */
3679 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3680 return -EINVAL;
3681 /* Can only add if TDLS ... */
3682 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3683 return -EOPNOTSUPP;
3684 /* ... with external setup is supported */
3685 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3686 return -EOPNOTSUPP;
3687 break;
3688 default:
3689 return -EOPNOTSUPP;
c75786c9
EP		 3690 }
3691
bdd90d5e 3692 /* be aware of params.vlan when changing code here */
5727ef1b 3693
e35e4d28 3694 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 3695
5727ef1b
JB		 3696 if (params.vlan)
3697 dev_put(params.vlan);
5727ef1b
JB		 3698 return err;
3699}
3700
3701static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3702{
4c476991
JB		 3703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3704 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3705 u8 *mac_addr = NULL;
3706
3707 if (info->attrs[NL80211_ATTR_MAC])
3708 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3709
e80cf853 3710 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3711 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3712 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3713 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3714 return -EINVAL;
5727ef1b 3715
4c476991
JB		 3716 if (!rdev->ops->del_station)
3717 return -EOPNOTSUPP;
3b85875a 3718
e35e4d28 3719 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 3720}
3721
15e47304 3722static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3723 int flags, struct net_device *dev,
3724 u8 *dst, u8 *next_hop,
3725 struct mpath_info *pinfo)
3726{
3727 void *hdr;
3728 struct nlattr *pinfoattr;
3729
15e47304 3730 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3731 if (!hdr)
3732 return -1;
3733
9360ffd1
DM		 3734 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3735 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3736 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3737 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3738 goto nla_put_failure;
f5ea9120 3739
2ec600d6
LCC		 3740 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3741 if (!pinfoattr)
3742 goto nla_put_failure;
9360ffd1
DM		 3743 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3744 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3745 pinfo->frame_qlen))
3746 goto nla_put_failure;
3747 if (((pinfo->filled & MPATH_INFO_SN) &&
3748 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3749 ((pinfo->filled & MPATH_INFO_METRIC) &&
3750 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3751 pinfo->metric)) ||
3752 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3753 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3754 pinfo->exptime)) ||
3755 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3756 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3757 pinfo->flags)) ||
3758 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3759 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3760 pinfo->discovery_timeout)) ||
3761 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3762 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3763 pinfo->discovery_retries)))
3764 goto nla_put_failure;
2ec600d6
LCC		 3765
3766 nla_nest_end(msg, pinfoattr);
3767
3768 return genlmsg_end(msg, hdr);
3769
3770 nla_put_failure:
bc3ed28c
TG		 3771 genlmsg_cancel(msg, hdr);
3772 return -EMSGSIZE;
2ec600d6
LCC		 3773}
3774
3775static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3776 struct netlink_callback *cb)
2ec600d6 3777{
2ec600d6
LCC		 3778 struct mpath_info pinfo;
3779 struct cfg80211_registered_device *dev;
bba95fef 3780 struct net_device *netdev;
2ec600d6
LCC		 3781 u8 dst[ETH_ALEN];
3782 u8 next_hop[ETH_ALEN];
bba95fef 3783 int path_idx = cb->args[1];
2ec600d6 3784 int err;
2ec600d6 3785
67748893
JB		 3786 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3787 if (err)
3788 return err;
bba95fef
JB		 3789
3790 if (!dev->ops->dump_mpath) {
eec60b03 3791 err = -EOPNOTSUPP;
bba95fef
JB		 3792 goto out_err;
3793 }
3794
eec60b03
JM		 3795 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3796 err = -EOPNOTSUPP;
0448b5fc 3797 goto out_err;
eec60b03
JM		 3798 }
3799
bba95fef 3800 while (1) {
e35e4d28
HG		 3801 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3802 &pinfo);
bba95fef 3803 if (err == -ENOENT)
2ec600d6 3804 break;
bba95fef 3805 if (err)
3b85875a 3806 goto out_err;
2ec600d6 3807
15e47304 3808 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3809 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3810 netdev, dst, next_hop,
3811 &pinfo) < 0)
3812 goto out;
2ec600d6 3813
bba95fef 3814 path_idx++;
2ec600d6 3815 }
2ec600d6 3816
2ec600d6 3817
bba95fef
JB		 3818 out:
3819 cb->args[1] = path_idx;
3820 err = skb->len;
bba95fef 3821 out_err:
67748893 3822 nl80211_finish_netdev_dump(dev);
bba95fef 3823 return err;
2ec600d6
LCC		 3824}
3825
3826static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3827{
4c476991 3828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3829 int err;
4c476991 3830 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3831 struct mpath_info pinfo;
3832 struct sk_buff *msg;
3833 u8 *dst = NULL;
3834 u8 next_hop[ETH_ALEN];
3835
3836 memset(&pinfo, 0, sizeof(pinfo));
3837
3838 if (!info->attrs[NL80211_ATTR_MAC])
3839 return -EINVAL;
3840
3841 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3842
4c476991
JB		 3843 if (!rdev->ops->get_mpath)
3844 return -EOPNOTSUPP;
2ec600d6 3845
4c476991
JB		 3846 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3847 return -EOPNOTSUPP;
eec60b03 3848
e35e4d28 3849 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 3850 if (err)
4c476991 3851 return err;
2ec600d6 3852
fd2120ca 3853 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3854 if (!msg)
4c476991 3855 return -ENOMEM;
2ec600d6 3856
15e47304 3857 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3858 dev, dst, next_hop, &pinfo) < 0) {
3859 nlmsg_free(msg);
3860 return -ENOBUFS;
3861 }
3b85875a 3862
4c476991 3863 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3864}
3865
3866static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3867{
4c476991
JB		 3868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3869 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3870 u8 *dst = NULL;
3871 u8 *next_hop = NULL;
3872
3873 if (!info->attrs[NL80211_ATTR_MAC])
3874 return -EINVAL;
3875
3876 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3877 return -EINVAL;
3878
3879 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3880 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3881
4c476991
JB		 3882 if (!rdev->ops->change_mpath)
3883 return -EOPNOTSUPP;
35a8efe1 3884
4c476991
JB		 3885 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3886 return -EOPNOTSUPP;
2ec600d6 3887
e35e4d28 3888 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 3889}
4c476991 3890
2ec600d6
LCC		 3891static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3892{
4c476991
JB		 3893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3894 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3895 u8 *dst = NULL;
3896 u8 *next_hop = NULL;
3897
3898 if (!info->attrs[NL80211_ATTR_MAC])
3899 return -EINVAL;
3900
3901 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3902 return -EINVAL;
3903
3904 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3905 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3906
4c476991
JB		 3907 if (!rdev->ops->add_mpath)
3908 return -EOPNOTSUPP;
35a8efe1 3909
4c476991
JB		 3910 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3911 return -EOPNOTSUPP;
2ec600d6 3912
e35e4d28 3913 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 3914}
3915
3916static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3917{
4c476991
JB		 3918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3919 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3920 u8 *dst = NULL;
3921
3922 if (info->attrs[NL80211_ATTR_MAC])
3923 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3924
4c476991
JB		 3925 if (!rdev->ops->del_mpath)
3926 return -EOPNOTSUPP;
3b85875a 3927
e35e4d28 3928 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 3929}
3930
9f1ba906
JM		 3931static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3932{
4c476991
JB		 3933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3934 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3935 struct bss_parameters params;
3936
3937 memset(&params, 0, sizeof(params));
3938 /* default to not changing parameters */
3939 params.use_cts_prot = -1;
3940 params.use_short_preamble = -1;
3941 params.use_short_slot_time = -1;
fd8aaaf3 3942 params.ap_isolate = -1;
50b12f59 3943 params.ht_opmode = -1;
53cabad7
JB		 3944 params.p2p_ctwindow = -1;
3945 params.p2p_opp_ps = -1;
9f1ba906
JM		 3946
3947 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3948 params.use_cts_prot =
3949 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3950 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3951 params.use_short_preamble =
3952 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3953 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3954 params.use_short_slot_time =
3955 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3956 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3957 params.basic_rates =
3958 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3959 params.basic_rates_len =
3960 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3961 }
fd8aaaf3
FF		 3962 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3963 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3964 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3965 params.ht_opmode =
3966 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3967
53cabad7
JB		 3968 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3969 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3970 return -EINVAL;
3971 params.p2p_ctwindow =
3972 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3973 if (params.p2p_ctwindow < 0)
3974 return -EINVAL;
3975 if (params.p2p_ctwindow != 0 &&
3976 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3977 return -EINVAL;
3978 }
3979
3980 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3981 u8 tmp;
3982
3983 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3984 return -EINVAL;
3985 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3986 if (tmp > 1)
3987 return -EINVAL;
3988 params.p2p_opp_ps = tmp;
3989 if (params.p2p_opp_ps &&
3990 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3991 return -EINVAL;
3992 }
3993
4c476991
JB		 3994 if (!rdev->ops->change_bss)
3995 return -EOPNOTSUPP;
9f1ba906 3996
074ac8df 3997 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3998 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3999 return -EOPNOTSUPP;
3b85875a 4000
e35e4d28 4001 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4002}
4003
b54452b0 4004static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4005 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4006 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4007 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4008 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4009 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4010 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4011};
4012
4013static int parse_reg_rule(struct nlattr *tb[],
4014 struct ieee80211_reg_rule *reg_rule)
4015{
4016 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4017 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4018
4019 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4020 return -EINVAL;
4021 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4022 return -EINVAL;
4023 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4024 return -EINVAL;
4025 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4026 return -EINVAL;
4027 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4028 return -EINVAL;
4029
4030 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4031
4032 freq_range->start_freq_khz =
4033 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4034 freq_range->end_freq_khz =
4035 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4036 freq_range->max_bandwidth_khz =
4037 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4038
4039 power_rule->max_eirp =
4040 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4041
4042 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4043 power_rule->max_antenna_gain =
4044 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4045
4046 return 0;
4047}
4048
4049static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4050{
4051 int r;
4052 char *data = NULL;
57b5ce07 4053 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4054
80778f18
LR		 4055 /*
4056 * You should only get this when cfg80211 hasn't yet initialized
4057 * completely when built-in to the kernel right between the time
4058 * window between nl80211_init() and regulatory_init(), if that is
4059 * even possible.
4060 */
458f4f9e 4061 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4062 return -EINPROGRESS;
80778f18 4063
fe33eb39
LR		 4064 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4065 return -EINVAL;
b2e1b302
LR		 4066
4067 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4068
57b5ce07
LR		 4069 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4070 user_reg_hint_type =
4071 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4072 else
4073 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4074
4075 switch (user_reg_hint_type) {
4076 case NL80211_USER_REG_HINT_USER:
4077 case NL80211_USER_REG_HINT_CELL_BASE:
4078 break;
4079 default:
4080 return -EINVAL;
4081 }
4082
4083 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4084
b2e1b302
LR		 4085 return r;
4086}
4087
24bdd9f4 4088static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4089 struct genl_info *info)
93da9cc1 4090{
4c476991 4091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4092 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4093 struct wireless_dev *wdev = dev->ieee80211_ptr;
4094 struct mesh_config cur_params;
4095 int err = 0;
93da9cc1 4096 void *hdr;
4097 struct nlattr *pinfoattr;
4098 struct sk_buff *msg;
4099
29cbe68c
JB		 4100 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4101 return -EOPNOTSUPP;
4102
24bdd9f4 4103 if (!rdev->ops->get_mesh_config)
4c476991 4104 return -EOPNOTSUPP;
f3f92586 4105
29cbe68c
JB		 4106 wdev_lock(wdev);
4107 /* If not connected, get default parameters */
4108 if (!wdev->mesh_id_len)
4109 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4110 else
e35e4d28 4111 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4112 wdev_unlock(wdev);
4113
93da9cc1 4114 if (err)
4c476991 4115 return err;
93da9cc1 4116
4117 /* Draw up a netlink message to send back */
fd2120ca 4118 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4119 if (!msg)
4120 return -ENOMEM;
15e47304 4121 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4122 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4123 if (!hdr)
efe1cf0c 4124 goto out;
24bdd9f4 4125 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4126 if (!pinfoattr)
4127 goto nla_put_failure;
9360ffd1
DM		 4128 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4129 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4130 cur_params.dot11MeshRetryTimeout) ||
4131 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4132 cur_params.dot11MeshConfirmTimeout) ||
4133 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4134 cur_params.dot11MeshHoldingTimeout) ||
4135 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4136 cur_params.dot11MeshMaxPeerLinks) ||
4137 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4138 cur_params.dot11MeshMaxRetries) ||
4139 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4140 cur_params.dot11MeshTTL) ||
4141 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4142 cur_params.element_ttl) ||
4143 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4144 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4145 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4146 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4147 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4148 cur_params.dot11MeshHWMPmaxPREQretries) ||
4149 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4150 cur_params.path_refresh_time) ||
4151 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4152 cur_params.min_discovery_timeout) ||
4153 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4154 cur_params.dot11MeshHWMPactivePathTimeout) ||
4155 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4156 cur_params.dot11MeshHWMPpreqMinInterval) ||
4157 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4158 cur_params.dot11MeshHWMPperrMinInterval) ||
4159 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4160 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4161 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4162 cur_params.dot11MeshHWMPRootMode) ||
4163 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4164 cur_params.dot11MeshHWMPRannInterval) ||
4165 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4166 cur_params.dot11MeshGateAnnouncementProtocol) ||
4167 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4168 cur_params.dot11MeshForwarding) ||
4169 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4170 cur_params.rssi_threshold) ||
4171 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4172 cur_params.ht_opmode) ||
4173 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4174 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4175 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4176 cur_params.dot11MeshHWMProotInterval) ||
4177 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4178 cur_params.dot11MeshHWMPconfirmationInterval) ||
4179 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4180 cur_params.power_mode) ||
4181 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4182 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 4183 goto nla_put_failure;
93da9cc1 4184 nla_nest_end(msg, pinfoattr);
4185 genlmsg_end(msg, hdr);
4c476991 4186 return genlmsg_reply(msg, info);
93da9cc1 4187
3b85875a 4188 nla_put_failure:
93da9cc1 4189 genlmsg_cancel(msg, hdr);
efe1cf0c 4190 out:
d080e275 4191 nlmsg_free(msg);
4c476991 4192 return -ENOBUFS;
93da9cc1 4193}
4194
b54452b0 4195static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4196 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4197 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4198 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4199 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4200 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4201 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4202 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4203 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4204 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4205 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4206 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4207 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4208 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4209 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4210 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4211 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4212 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4213 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4214 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4215 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4216 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4217 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4218 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4219 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4220 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4221 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4222 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4223};
4224
c80d545d
JC		 4225static const struct nla_policy
4226 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4227 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4228 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4229 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4230 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 4231 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4232 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4233 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4234};
4235
24bdd9f4 4236static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4237 struct mesh_config *cfg,
4238 u32 *mask_out)
93da9cc1 4239{
93da9cc1 4240 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4241 u32 mask = 0;
93da9cc1 4242
ea54fba2
MP		 4243#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4244do { \
4245 if (tb[attr]) { \
4246 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4247 return -EINVAL; \
4248 cfg->param = fn(tb[attr]); \
4249 mask |= (1 << (attr - 1)); \
4250 } \
4251} while (0)
bd90fdcc
JB		 4252
4253
24bdd9f4 4254 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4255 return -EINVAL;
4256 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4257 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4258 nl80211_meshconf_params_policy))
93da9cc1 4259 return -EINVAL;
4260
93da9cc1 4261 /* This makes sure that there aren't more than 32 mesh config
4262 * parameters (otherwise our bitfield scheme would not work.) */
4263 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4264
4265 /* Fill in the params struct */
ea54fba2 4266 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4267 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4268 nla_get_u16);
ea54fba2 4269 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4270 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4271 nla_get_u16);
ea54fba2 4272 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4273 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4274 nla_get_u16);
ea54fba2 4275 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4276 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4277 nla_get_u16);
ea54fba2 4278 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4279 mask, NL80211_MESHCONF_MAX_RETRIES,
4280 nla_get_u8);
ea54fba2 4281 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4282 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4283 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4284 mask, NL80211_MESHCONF_ELEMENT_TTL,
4285 nla_get_u8);
ea54fba2 4286 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4287 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4288 nla_get_u8);
ea54fba2
MP		 4289 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4290 1, 255, mask,
a4f606ea
CYY		 4291 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4292 nla_get_u32);
ea54fba2 4293 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4294 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4295 nla_get_u8);
ea54fba2 4296 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4297 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4298 nla_get_u32);
ea54fba2 4299 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4300 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4301 nla_get_u16);
ea54fba2
MP		 4302 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4303 1, 65535, mask,
a4f606ea
CYY		 4304 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4305 nla_get_u32);
93da9cc1 4306 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4307 1, 65535, mask,
4308 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4309 nla_get_u16);
dca7e943 4310 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4311 1, 65535, mask,
4312 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4313 nla_get_u16);
93da9cc1 4314 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4315 dot11MeshHWMPnetDiameterTraversalTime,
4316 1, 65535, mask,
a4f606ea
CYY		 4317 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4318 nla_get_u16);
ea54fba2
MP		 4319 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4320 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4321 nla_get_u8);
4322 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4323 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4324 nla_get_u16);
63c5723b 4325 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4326 dot11MeshGateAnnouncementProtocol, 0, 1,
4327 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4328 nla_get_u8);
ea54fba2 4329 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4330 mask, NL80211_MESHCONF_FORWARDING,
4331 nla_get_u8);
ea54fba2 4332 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4333 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4334 nla_get_u32);
ea54fba2 4335 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4336 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4337 nla_get_u16);
4338 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4339 1, 65535, mask,
ac1073a6
CYY		 4340 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4341 nla_get_u32);
ea54fba2 4342 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4343 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4344 nla_get_u16);
4345 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4346 dot11MeshHWMPconfirmationInterval,
4347 1, 65535, mask,
728b19e5 4348 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4349 nla_get_u16);
3b1c5a53
MP		 4350 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4351 NL80211_MESH_POWER_ACTIVE,
4352 NL80211_MESH_POWER_MAX,
4353 mask, NL80211_MESHCONF_POWER_MODE,
4354 nla_get_u32);
4355 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4356 0, 65535, mask,
4357 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4358 if (mask_out)
4359 *mask_out = mask;
c80d545d 4360
bd90fdcc
JB		 4361 return 0;
4362
4363#undef FILL_IN_MESH_PARAM_IF_SET
4364}
4365
c80d545d
JC		 4366static int nl80211_parse_mesh_setup(struct genl_info *info,
4367 struct mesh_setup *setup)
4368{
4369 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4370
4371 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4372 return -EINVAL;
4373 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4374 info->attrs[NL80211_ATTR_MESH_SETUP],
4375 nl80211_mesh_setup_params_policy))
4376 return -EINVAL;
4377
d299a1f2
JC		 4378 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4379 setup->sync_method =
4380 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4381 IEEE80211_SYNC_METHOD_VENDOR :
4382 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4383
c80d545d
JC		 4384 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4385 setup->path_sel_proto =
4386 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4387 IEEE80211_PATH_PROTOCOL_VENDOR :
4388 IEEE80211_PATH_PROTOCOL_HWMP;
4389
4390 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4391 setup->path_metric =
4392 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4393 IEEE80211_PATH_METRIC_VENDOR :
4394 IEEE80211_PATH_METRIC_AIRTIME;
4395
581a8b0f
JC		 4396
4397 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4398 struct nlattr *ieattr =
581a8b0f 4399 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4400 if (!is_valid_ie_attr(ieattr))
4401 return -EINVAL;
581a8b0f
JC		 4402 setup->ie = nla_data(ieattr);
4403 setup->ie_len = nla_len(ieattr);
c80d545d 4404 }
b130e5ce
JC		 4405 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4406 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4407
4408 return 0;
4409}
4410
24bdd9f4 4411static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4412 struct genl_info *info)
bd90fdcc
JB		 4413{
4414 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4415 struct net_device *dev = info->user_ptr[1];
29cbe68c 4416 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4417 struct mesh_config cfg;
4418 u32 mask;
4419 int err;
4420
29cbe68c
JB		 4421 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4422 return -EOPNOTSUPP;
4423
24bdd9f4 4424 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4425 return -EOPNOTSUPP;
4426
24bdd9f4 4427 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4428 if (err)
4429 return err;
4430
29cbe68c
JB		 4431 wdev_lock(wdev);
4432 if (!wdev->mesh_id_len)
4433 err = -ENOLINK;
4434
4435 if (!err)
e35e4d28 4436 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4437
4438 wdev_unlock(wdev);
4439
4440 return err;
93da9cc1 4441}
4442
f130347c
LR		 4443static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4444{
458f4f9e 4445 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4446 struct sk_buff *msg;
4447 void *hdr = NULL;
4448 struct nlattr *nl_reg_rules;
4449 unsigned int i;
4450 int err = -EINVAL;
4451
a1794390 4452 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4453
4454 if (!cfg80211_regdomain)
4455 goto out;
4456
fd2120ca 4457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4458 if (!msg) {
4459 err = -ENOBUFS;
4460 goto out;
4461 }
4462
15e47304 4463 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4464 NL80211_CMD_GET_REG);
4465 if (!hdr)
efe1cf0c 4466 goto put_failure;
f130347c 4467
57b5ce07
LR		 4468 if (reg_last_request_cell_base() &&
4469 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4470 NL80211_USER_REG_HINT_CELL_BASE))
4471 goto nla_put_failure;
4472
458f4f9e
JB		 4473 rcu_read_lock();
4474 regdom = rcu_dereference(cfg80211_regdomain);
4475
4476 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4477 (regdom->dfs_region &&
4478 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4479 goto nla_put_failure_rcu;
4480
f130347c
LR		 4481 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4482 if (!nl_reg_rules)
458f4f9e 4483 goto nla_put_failure_rcu;
f130347c 4484
458f4f9e 4485 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4486 struct nlattr *nl_reg_rule;
4487 const struct ieee80211_reg_rule *reg_rule;
4488 const struct ieee80211_freq_range *freq_range;
4489 const struct ieee80211_power_rule *power_rule;
4490
458f4f9e 4491 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4492 freq_range = &reg_rule->freq_range;
4493 power_rule = &reg_rule->power_rule;
4494
4495 nl_reg_rule = nla_nest_start(msg, i);
4496 if (!nl_reg_rule)
458f4f9e 4497 goto nla_put_failure_rcu;
f130347c 4498
9360ffd1
DM		 4499 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4500 reg_rule->flags) ||
4501 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4502 freq_range->start_freq_khz) ||
4503 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4504 freq_range->end_freq_khz) ||
4505 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4506 freq_range->max_bandwidth_khz) ||
4507 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4508 power_rule->max_antenna_gain) ||
4509 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4510 power_rule->max_eirp))
458f4f9e 4511 goto nla_put_failure_rcu;
f130347c
LR		 4512
4513 nla_nest_end(msg, nl_reg_rule);
4514 }
458f4f9e 4515 rcu_read_unlock();
f130347c
LR		 4516
4517 nla_nest_end(msg, nl_reg_rules);
4518
4519 genlmsg_end(msg, hdr);
134e6375 4520 err = genlmsg_reply(msg, info);
f130347c
LR		 4521 goto out;
4522
458f4f9e
JB		 4523nla_put_failure_rcu:
4524 rcu_read_unlock();
f130347c
LR		 4525nla_put_failure:
4526 genlmsg_cancel(msg, hdr);
efe1cf0c 4527put_failure:
d080e275 4528 nlmsg_free(msg);
f130347c
LR		 4529 err = -EMSGSIZE;
4530out:
a1794390 4531 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4532 return err;
4533}
4534
b2e1b302
LR		 4535static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4536{
4537 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4538 struct nlattr *nl_reg_rule;
4539 char *alpha2 = NULL;
4540 int rem_reg_rules = 0, r = 0;
4541 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4542 u8 dfs_region = 0;
b2e1b302
LR		 4543 struct ieee80211_regdomain *rd = NULL;
4544
4545 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4546 return -EINVAL;
4547
4548 if (!info->attrs[NL80211_ATTR_REG_RULES])
4549 return -EINVAL;
4550
4551 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4552
8b60b078
LR		 4553 if (info->attrs[NL80211_ATTR_DFS_REGION])
4554 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4555
b2e1b302 4556 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4557 rem_reg_rules) {
b2e1b302
LR		 4558 num_rules++;
4559 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4560 return -EINVAL;
b2e1b302
LR		 4561 }
4562
b2e1b302 4563 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4564 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4565
4566 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4567 if (!rd)
4568 return -ENOMEM;
b2e1b302
LR		 4569
4570 rd->n_reg_rules = num_rules;
4571 rd->alpha2[0] = alpha2[0];
4572 rd->alpha2[1] = alpha2[1];
4573
8b60b078
LR		 4574 /*
4575 * Disable DFS master mode if the DFS region was
4576 * not supported or known on this kernel.
4577 */
4578 if (reg_supported_dfs_region(dfs_region))
4579 rd->dfs_region = dfs_region;
4580
b2e1b302 4581 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4582 rem_reg_rules) {
b2e1b302 4583 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4584 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4585 reg_rule_policy);
b2e1b302
LR		 4586 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4587 if (r)
4588 goto bad_reg;
4589
4590 rule_idx++;
4591
d0e18f83
LR		 4592 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4593 r = -EINVAL;
b2e1b302 4594 goto bad_reg;
d0e18f83 4595 }
b2e1b302
LR		 4596 }
4597
6913b49a
JB		 4598 mutex_lock(&cfg80211_mutex);
4599
b2e1b302 4600 r = set_regdom(rd);
6913b49a 4601 /* set_regdom took ownership */
1a919318 4602 rd = NULL;
6913b49a 4603 mutex_unlock(&cfg80211_mutex);
b2e1b302 4604
d2372b31 4605 bad_reg:
b2e1b302 4606 kfree(rd);
d0e18f83 4607 return r;
b2e1b302
LR		 4608}
4609
83f5e2cf
JB		 4610static int validate_scan_freqs(struct nlattr *freqs)
4611{
4612 struct nlattr *attr1, *attr2;
4613 int n_channels = 0, tmp1, tmp2;
4614
4615 nla_for_each_nested(attr1, freqs, tmp1) {
4616 n_channels++;
4617 /*
4618 * Some hardware has a limited channel list for
4619 * scanning, and it is pretty much nonsensical
4620 * to scan for a channel twice, so disallow that
4621 * and don't require drivers to check that the
4622 * channel list they get isn't longer than what
4623 * they can scan, as long as they can scan all
4624 * the channels they registered at once.
4625 */
4626 nla_for_each_nested(attr2, freqs, tmp2)
4627 if (attr1 != attr2 &&
4628 nla_get_u32(attr1) == nla_get_u32(attr2))
4629 return 0;
4630 }
4631
4632 return n_channels;
4633}
4634
2a519311
JB		 4635static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4636{
4c476991 4637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4638 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4639 struct cfg80211_scan_request *request;
2a519311
JB		 4640 struct nlattr *attr;
4641 struct wiphy *wiphy;
83f5e2cf 4642 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4643 size_t ie_len;
2a519311 4644
f4a11bb0
JB		 4645 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4646 return -EINVAL;
4647
79c97e97 4648 wiphy = &rdev->wiphy;
2a519311 4649
4c476991
JB		 4650 if (!rdev->ops->scan)
4651 return -EOPNOTSUPP;
2a519311 4652
4c476991
JB		 4653 if (rdev->scan_req)
4654 return -EBUSY;
2a519311
JB		 4655
4656 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4657 n_channels = validate_scan_freqs(
4658 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4659 if (!n_channels)
4660 return -EINVAL;
2a519311 4661 } else {
34850ab2 4662 enum ieee80211_band band;
83f5e2cf
JB		 4663 n_channels = 0;
4664
2a519311
JB		 4665 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4666 if (wiphy->bands[band])
4667 n_channels += wiphy->bands[band]->n_channels;
4668 }
4669
4670 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4671 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4672 n_ssids++;
4673
4c476991
JB		 4674 if (n_ssids > wiphy->max_scan_ssids)
4675 return -EINVAL;
2a519311 4676
70692ad2
JM		 4677 if (info->attrs[NL80211_ATTR_IE])
4678 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4679 else
4680 ie_len = 0;
4681
4c476991
JB		 4682 if (ie_len > wiphy->max_scan_ie_len)
4683 return -EINVAL;
18a83659 4684
2a519311 4685 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4686 + sizeof(*request->ssids) * n_ssids
4687 + sizeof(*request->channels) * n_channels
70692ad2 4688 + ie_len, GFP_KERNEL);
4c476991
JB		 4689 if (!request)
4690 return -ENOMEM;
2a519311 4691
2a519311 4692 if (n_ssids)
5ba63533 4693 request->ssids = (void *)&request->channels[n_channels];
2a519311 4694 request->n_ssids = n_ssids;
70692ad2
JM		 4695 if (ie_len) {
4696 if (request->ssids)
4697 request->ie = (void *)(request->ssids + n_ssids);
4698 else
4699 request->ie = (void *)(request->channels + n_channels);
4700 }
2a519311 4701
584991dc 4702 i = 0;
2a519311
JB		 4703 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4704 /* user specified, bail out if channel not found */
2a519311 4705 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4706 struct ieee80211_channel *chan;
4707
4708 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4709
4710 if (!chan) {
2a519311
JB		 4711 err = -EINVAL;
4712 goto out_free;
4713 }
584991dc
JB		 4714
4715 /* ignore disabled channels */
4716 if (chan->flags & IEEE80211_CHAN_DISABLED)
4717 continue;
4718
4719 request->channels[i] = chan;
2a519311
JB		 4720 i++;
4721 }
4722 } else {
34850ab2
JB		 4723 enum ieee80211_band band;
4724
2a519311 4725 /* all channels */
2a519311
JB		 4726 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4727 int j;
4728 if (!wiphy->bands[band])
4729 continue;
4730 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4731 struct ieee80211_channel *chan;
4732
4733 chan = &wiphy->bands[band]->channels[j];
4734
4735 if (chan->flags & IEEE80211_CHAN_DISABLED)
4736 continue;
4737
4738 request->channels[i] = chan;
2a519311
JB		 4739 i++;
4740 }
4741 }
4742 }
4743
584991dc
JB		 4744 if (!i) {
4745 err = -EINVAL;
4746 goto out_free;
4747 }
4748
4749 request->n_channels = i;
4750
2a519311
JB		 4751 i = 0;
4752 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4753 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4754 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4755 err = -EINVAL;
4756 goto out_free;
4757 }
57a27e1d 4758 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4759 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4760 i++;
4761 }
4762 }
4763
70692ad2
JM		 4764 if (info->attrs[NL80211_ATTR_IE]) {
4765 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4766 memcpy((void *)request->ie,
4767 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4768 request->ie_len);
4769 }
4770
34850ab2 4771 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4772 if (wiphy->bands[i])
4773 request->rates[i] =
4774 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4775
4776 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4777 nla_for_each_nested(attr,
4778 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4779 tmp) {
4780 enum ieee80211_band band = nla_type(attr);
4781
84404623 4782 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4783 err = -EINVAL;
4784 goto out_free;
4785 }
4786 err = ieee80211_get_ratemask(wiphy->bands[band],
4787 nla_data(attr),
4788 nla_len(attr),
4789 &request->rates[band]);
4790 if (err)
4791 goto out_free;
4792 }
4793 }
4794
46856bbf 4795 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4796 request->flags = nla_get_u32(
4797 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4798 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4799 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4800 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4801 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4802 err = -EOPNOTSUPP;
4803 goto out_free;
4804 }
4805 }
ed473771 4806
e9f935e3
RM		 4807 request->no_cck =
4808 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4809
fd014284 4810 request->wdev = wdev;
79c97e97 4811 request->wiphy = &rdev->wiphy;
15d6030b 4812 request->scan_start = jiffies;
2a519311 4813
79c97e97 4814 rdev->scan_req = request;
e35e4d28 4815 err = rdev_scan(rdev, request);
2a519311 4816
463d0183 4817 if (!err) {
fd014284
JB		 4818 nl80211_send_scan_start(rdev, wdev);
4819 if (wdev->netdev)
4820 dev_hold(wdev->netdev);
4c476991 4821 } else {
2a519311 4822 out_free:
79c97e97 4823 rdev->scan_req = NULL;
2a519311
JB		 4824 kfree(request);
4825 }
3b85875a 4826
2a519311
JB		 4827 return err;
4828}
4829
807f8a8c
LC		 4830static int nl80211_start_sched_scan(struct sk_buff *skb,
4831 struct genl_info *info)
4832{
4833 struct cfg80211_sched_scan_request *request;
4834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4835 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4836 struct nlattr *attr;
4837 struct wiphy *wiphy;
a1f1c21c 4838 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4839 u32 interval;
807f8a8c
LC		 4840 enum ieee80211_band band;
4841 size_t ie_len;
a1f1c21c 4842 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4843
4844 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4845 !rdev->ops->sched_scan_start)
4846 return -EOPNOTSUPP;
4847
4848 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4849 return -EINVAL;
4850
bbe6ad6d
LC		 4851 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4852 return -EINVAL;
4853
4854 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4855 if (interval == 0)
4856 return -EINVAL;
4857
807f8a8c
LC		 4858 wiphy = &rdev->wiphy;
4859
4860 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4861 n_channels = validate_scan_freqs(
4862 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4863 if (!n_channels)
4864 return -EINVAL;
4865 } else {
4866 n_channels = 0;
4867
4868 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4869 if (wiphy->bands[band])
4870 n_channels += wiphy->bands[band]->n_channels;
4871 }
4872
4873 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4874 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4875 tmp)
4876 n_ssids++;
4877
93b6aa69 4878 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4879 return -EINVAL;
4880
a1f1c21c
LC		 4881 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4882 nla_for_each_nested(attr,
4883 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4884 tmp)
4885 n_match_sets++;
4886
4887 if (n_match_sets > wiphy->max_match_sets)
4888 return -EINVAL;
4889
807f8a8c
LC		 4890 if (info->attrs[NL80211_ATTR_IE])
4891 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4892 else
4893 ie_len = 0;
4894
5a865bad 4895 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4896 return -EINVAL;
4897
c10841ca
LC		 4898 mutex_lock(&rdev->sched_scan_mtx);
4899
4900 if (rdev->sched_scan_req) {
4901 err = -EINPROGRESS;
4902 goto out;
4903 }
4904
807f8a8c 4905 request = kzalloc(sizeof(*request)
a2cd43c5 4906 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4907 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4908 + sizeof(*request->channels) * n_channels
807f8a8c 4909 + ie_len, GFP_KERNEL);
c10841ca
LC		 4910 if (!request) {
4911 err = -ENOMEM;
4912 goto out;
4913 }
807f8a8c
LC		 4914
4915 if (n_ssids)
4916 request->ssids = (void *)&request->channels[n_channels];
4917 request->n_ssids = n_ssids;
4918 if (ie_len) {
4919 if (request->ssids)
4920 request->ie = (void *)(request->ssids + n_ssids);
4921 else
4922 request->ie = (void *)(request->channels + n_channels);
4923 }
4924
a1f1c21c
LC		 4925 if (n_match_sets) {
4926 if (request->ie)
4927 request->match_sets = (void *)(request->ie + ie_len);
4928 else if (request->ssids)
4929 request->match_sets =
4930 (void *)(request->ssids + n_ssids);
4931 else
4932 request->match_sets =
4933 (void *)(request->channels + n_channels);
4934 }
4935 request->n_match_sets = n_match_sets;
4936
807f8a8c
LC		 4937 i = 0;
4938 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4939 /* user specified, bail out if channel not found */
4940 nla_for_each_nested(attr,
4941 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4942 tmp) {
4943 struct ieee80211_channel *chan;
4944
4945 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4946
4947 if (!chan) {
4948 err = -EINVAL;
4949 goto out_free;
4950 }
4951
4952 /* ignore disabled channels */
4953 if (chan->flags & IEEE80211_CHAN_DISABLED)
4954 continue;
4955
4956 request->channels[i] = chan;
4957 i++;
4958 }
4959 } else {
4960 /* all channels */
4961 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4962 int j;
4963 if (!wiphy->bands[band])
4964 continue;
4965 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4966 struct ieee80211_channel *chan;
4967
4968 chan = &wiphy->bands[band]->channels[j];
4969
4970 if (chan->flags & IEEE80211_CHAN_DISABLED)
4971 continue;
4972
4973 request->channels[i] = chan;
4974 i++;
4975 }
4976 }
4977 }
4978
4979 if (!i) {
4980 err = -EINVAL;
4981 goto out_free;
4982 }
4983
4984 request->n_channels = i;
4985
4986 i = 0;
4987 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4988 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4989 tmp) {
57a27e1d 4990 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4991 err = -EINVAL;
4992 goto out_free;
4993 }
57a27e1d 4994 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4995 memcpy(request->ssids[i].ssid, nla_data(attr),
4996 nla_len(attr));
807f8a8c
LC		 4997 i++;
4998 }
4999 }
5000
a1f1c21c
LC		 5001 i = 0;
5002 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5003 nla_for_each_nested(attr,
5004 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5005 tmp) {
88e920b4 5006 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5007
5008 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5009 nla_data(attr), nla_len(attr),
5010 nl80211_match_policy);
4a4ab0d7 5011 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5012 if (ssid) {
5013 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5014 err = -EINVAL;
5015 goto out_free;
5016 }
5017 memcpy(request->match_sets[i].ssid.ssid,
5018 nla_data(ssid), nla_len(ssid));
5019 request->match_sets[i].ssid.ssid_len =
5020 nla_len(ssid);
5021 }
88e920b4
TP		 5022 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5023 if (rssi)
5024 request->rssi_thold = nla_get_u32(rssi);
5025 else
5026 request->rssi_thold =
5027 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5028 i++;
5029 }
5030 }
5031
807f8a8c
LC		 5032 if (info->attrs[NL80211_ATTR_IE]) {
5033 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5034 memcpy((void *)request->ie,
5035 nla_data(info->attrs[NL80211_ATTR_IE]),
5036 request->ie_len);
5037 }
5038
46856bbf 5039 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5040 request->flags = nla_get_u32(
5041 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5042 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5043 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5044 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5045 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5046 err = -EOPNOTSUPP;
5047 goto out_free;
5048 }
5049 }
ed473771 5050
807f8a8c
LC		 5051 request->dev = dev;
5052 request->wiphy = &rdev->wiphy;
bbe6ad6d 5053 request->interval = interval;
15d6030b 5054 request->scan_start = jiffies;
807f8a8c 5055
e35e4d28 5056 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5057 if (!err) {
5058 rdev->sched_scan_req = request;
5059 nl80211_send_sched_scan(rdev, dev,
5060 NL80211_CMD_START_SCHED_SCAN);
5061 goto out;
5062 }
5063
5064out_free:
5065 kfree(request);
5066out:
c10841ca 5067 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 5068 return err;
5069}
5070
5071static int nl80211_stop_sched_scan(struct sk_buff *skb,
5072 struct genl_info *info)
5073{
5074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 5075 int err;
807f8a8c
LC		 5076
5077 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5078 !rdev->ops->sched_scan_stop)
5079 return -EOPNOTSUPP;
5080
c10841ca
LC		 5081 mutex_lock(&rdev->sched_scan_mtx);
5082 err = __cfg80211_stop_sched_scan(rdev, false);
5083 mutex_unlock(&rdev->sched_scan_mtx);
5084
5085 return err;
807f8a8c
LC		 5086}
5087
04f39047
SW		 5088static int nl80211_start_radar_detection(struct sk_buff *skb,
5089 struct genl_info *info)
5090{
5091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5092 struct net_device *dev = info->user_ptr[1];
5093 struct wireless_dev *wdev = dev->ieee80211_ptr;
5094 struct cfg80211_chan_def chandef;
5095 int err;
5096
5097 err = nl80211_parse_chandef(rdev, info, &chandef);
5098 if (err)
5099 return err;
5100
5101 if (wdev->cac_started)
5102 return -EBUSY;
5103
5104 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5105 if (err < 0)
5106 return err;
5107
5108 if (err == 0)
5109 return -EINVAL;
5110
5111 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5112 return -EINVAL;
5113
5114 if (!rdev->ops->start_radar_detection)
5115 return -EOPNOTSUPP;
5116
5117 mutex_lock(&rdev->devlist_mtx);
5118 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5119 chandef.chan, CHAN_MODE_SHARED,
5120 BIT(chandef.width));
5121 if (err)
5122 goto err_locked;
5123
5124 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5125 if (!err) {
5126 wdev->channel = chandef.chan;
5127 wdev->cac_started = true;
5128 wdev->cac_start_time = jiffies;
5129 }
5130err_locked:
5131 mutex_unlock(&rdev->devlist_mtx);
5132
5133 return err;
5134}
5135
9720bb3a
JB		 5136static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5137 u32 seq, int flags,
2a519311 5138 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5139 struct wireless_dev *wdev,
5140 struct cfg80211_internal_bss *intbss)
2a519311 5141{
48ab905d 5142 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5143 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5144 void *hdr;
5145 struct nlattr *bss;
8cef2c9d 5146 bool tsf = false;
48ab905d
JB		 5147
5148 ASSERT_WDEV_LOCK(wdev);
2a519311 5149
15e47304 5150 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5151 NL80211_CMD_NEW_SCAN_RESULTS);
5152 if (!hdr)
5153 return -1;
5154
9720bb3a
JB		 5155 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5156
9360ffd1
DM		 5157 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5158 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5159 goto nla_put_failure;
2a519311
JB		 5160
5161 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5162 if (!bss)
5163 goto nla_put_failure;
9360ffd1 5164 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5165 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5166 goto nla_put_failure;
9caf0364
JB		 5167
5168 rcu_read_lock();
5169 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5170 if (ies) {
5171 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5172 goto fail_unlock_rcu;
5173 tsf = true;
5174 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5175 ies->len, ies->data))
5176 goto fail_unlock_rcu;
9caf0364
JB		 5177 }
5178 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5179 if (ies) {
5180 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5181 goto fail_unlock_rcu;
5182 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5183 ies->len, ies->data))
5184 goto fail_unlock_rcu;
9caf0364
JB		 5185 }
5186 rcu_read_unlock();
5187
9360ffd1
DM		 5188 if (res->beacon_interval &&
5189 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5190 goto nla_put_failure;
5191 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5192 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5193 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5194 jiffies_to_msecs(jiffies - intbss->ts)))
5195 goto nla_put_failure;
2a519311 5196
77965c97 5197 switch (rdev->wiphy.signal_type) {
2a519311 5198 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5199 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5200 goto nla_put_failure;
2a519311
JB		 5201 break;
5202 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5203 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5204 goto nla_put_failure;
2a519311
JB		 5205 break;
5206 default:
5207 break;
5208 }
5209
48ab905d 5210 switch (wdev->iftype) {
074ac8df 5211 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5212 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5213 if (intbss == wdev->current_bss &&
5214 nla_put_u32(msg, NL80211_BSS_STATUS,
5215 NL80211_BSS_STATUS_ASSOCIATED))
5216 goto nla_put_failure;
48ab905d
JB		 5217 break;
5218 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5219 if (intbss == wdev->current_bss &&
5220 nla_put_u32(msg, NL80211_BSS_STATUS,
5221 NL80211_BSS_STATUS_IBSS_JOINED))
5222 goto nla_put_failure;
48ab905d
JB		 5223 break;
5224 default:
5225 break;
5226 }
5227
2a519311
JB		 5228 nla_nest_end(msg, bss);
5229
5230 return genlmsg_end(msg, hdr);
5231
8cef2c9d
JB		 5232 fail_unlock_rcu:
5233 rcu_read_unlock();
2a519311
JB		 5234 nla_put_failure:
5235 genlmsg_cancel(msg, hdr);
5236 return -EMSGSIZE;
5237}
5238
5239static int nl80211_dump_scan(struct sk_buff *skb,
5240 struct netlink_callback *cb)
5241{
48ab905d
JB		 5242 struct cfg80211_registered_device *rdev;
5243 struct net_device *dev;
2a519311 5244 struct cfg80211_internal_bss *scan;
48ab905d 5245 struct wireless_dev *wdev;
2a519311
JB		 5246 int start = cb->args[1], idx = 0;
5247 int err;
5248
67748893
JB		 5249 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5250 if (err)
5251 return err;
2a519311 5252
48ab905d 5253 wdev = dev->ieee80211_ptr;
2a519311 5254
48ab905d
JB		 5255 wdev_lock(wdev);
5256 spin_lock_bh(&rdev->bss_lock);
5257 cfg80211_bss_expire(rdev);
5258
9720bb3a
JB		 5259 cb->seq = rdev->bss_generation;
5260
48ab905d 5261 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5262 if (++idx <= start)
5263 continue;
9720bb3a 5264 if (nl80211_send_bss(skb, cb,
2a519311 5265 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5266 rdev, wdev, scan) < 0) {
2a519311 5267 idx--;
67748893 5268 break;
2a519311
JB		 5269 }
5270 }
5271
48ab905d
JB		 5272 spin_unlock_bh(&rdev->bss_lock);
5273 wdev_unlock(wdev);
2a519311
JB		 5274
5275 cb->args[1] = idx;
67748893 5276 nl80211_finish_netdev_dump(rdev);
2a519311 5277
67748893 5278 return skb->len;
2a519311
JB		 5279}
5280
15e47304 5281static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5282 int flags, struct net_device *dev,
5283 struct survey_info *survey)
5284{
5285 void *hdr;
5286 struct nlattr *infoattr;
5287
15e47304 5288 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5289 NL80211_CMD_NEW_SURVEY_RESULTS);
5290 if (!hdr)
5291 return -ENOMEM;
5292
9360ffd1
DM		 5293 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5294 goto nla_put_failure;
61fa713c
HS		 5295
5296 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5297 if (!infoattr)
5298 goto nla_put_failure;
5299
9360ffd1
DM		 5300 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5301 survey->channel->center_freq))
5302 goto nla_put_failure;
5303
5304 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5305 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5306 goto nla_put_failure;
5307 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5308 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5309 goto nla_put_failure;
5310 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5311 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5312 survey->channel_time))
5313 goto nla_put_failure;
5314 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5315 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5316 survey->channel_time_busy))
5317 goto nla_put_failure;
5318 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5319 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5320 survey->channel_time_ext_busy))
5321 goto nla_put_failure;
5322 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5323 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5324 survey->channel_time_rx))
5325 goto nla_put_failure;
5326 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5327 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5328 survey->channel_time_tx))
5329 goto nla_put_failure;
61fa713c
HS		 5330
5331 nla_nest_end(msg, infoattr);
5332
5333 return genlmsg_end(msg, hdr);
5334
5335 nla_put_failure:
5336 genlmsg_cancel(msg, hdr);
5337 return -EMSGSIZE;
5338}
5339
5340static int nl80211_dump_survey(struct sk_buff *skb,
5341 struct netlink_callback *cb)
5342{
5343 struct survey_info survey;
5344 struct cfg80211_registered_device *dev;
5345 struct net_device *netdev;
61fa713c
HS		 5346 int survey_idx = cb->args[1];
5347 int res;
5348
67748893
JB		 5349 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5350 if (res)
5351 return res;
61fa713c
HS		 5352
5353 if (!dev->ops->dump_survey) {
5354 res = -EOPNOTSUPP;
5355 goto out_err;
5356 }
5357
5358 while (1) {
180cdc79
LR		 5359 struct ieee80211_channel *chan;
5360
e35e4d28 5361 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5362 if (res == -ENOENT)
5363 break;
5364 if (res)
5365 goto out_err;
5366
180cdc79
LR		 5367 /* Survey without a channel doesn't make sense */
5368 if (!survey.channel) {
5369 res = -EINVAL;
5370 goto out;
5371 }
5372
5373 chan = ieee80211_get_channel(&dev->wiphy,
5374 survey.channel->center_freq);
5375 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5376 survey_idx++;
5377 continue;
5378 }
5379
61fa713c 5380 if (nl80211_send_survey(skb,
15e47304 5381 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5382 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5383 netdev,
5384 &survey) < 0)
5385 goto out;
5386 survey_idx++;
5387 }
5388
5389 out:
5390 cb->args[1] = survey_idx;
5391 res = skb->len;
5392 out_err:
67748893 5393 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5394 return res;
5395}
5396
b23aa676
SO		 5397static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5398{
5399 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5400 NL80211_WPA_VERSION_2));
5401}
5402
636a5d36
JM		 5403static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5404{
4c476991
JB		 5405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5406 struct net_device *dev = info->user_ptr[1];
19957bb3 5407 struct ieee80211_channel *chan;
e39e5b5e
JM		 5408 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5409 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5410 enum nl80211_auth_type auth_type;
fffd0934 5411 struct key_parse key;
d5cdfacb 5412 bool local_state_change;
636a5d36 5413
f4a11bb0
JB		 5414 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5415 return -EINVAL;
5416
5417 if (!info->attrs[NL80211_ATTR_MAC])
5418 return -EINVAL;
5419
1778092e
JM		 5420 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5421 return -EINVAL;
5422
19957bb3
JB		 5423 if (!info->attrs[NL80211_ATTR_SSID])
5424 return -EINVAL;
5425
5426 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5427 return -EINVAL;
5428
fffd0934
JB		 5429 err = nl80211_parse_key(info, &key);
5430 if (err)
5431 return err;
5432
5433 if (key.idx >= 0) {
e31b8213
JB		 5434 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5435 return -EINVAL;
fffd0934
JB		 5436 if (!key.p.key || !key.p.key_len)
5437 return -EINVAL;
5438 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5439 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5440 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5441 key.p.key_len != WLAN_KEY_LEN_WEP104))
5442 return -EINVAL;
5443 if (key.idx > 4)
5444 return -EINVAL;
5445 } else {
5446 key.p.key_len = 0;
5447 key.p.key = NULL;
5448 }
5449
afea0b7a
JB		 5450 if (key.idx >= 0) {
5451 int i;
5452 bool ok = false;
5453 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5454 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5455 ok = true;
5456 break;
5457 }
5458 }
4c476991
JB		 5459 if (!ok)
5460 return -EINVAL;
afea0b7a
JB		 5461 }
5462
4c476991
JB		 5463 if (!rdev->ops->auth)
5464 return -EOPNOTSUPP;
636a5d36 5465
074ac8df 5466 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5467 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5468 return -EOPNOTSUPP;
eec60b03 5469
19957bb3 5470 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5471 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5472 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5473 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5474 return -EINVAL;
636a5d36 5475
19957bb3
JB		 5476 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5477 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5478
5479 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5480 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5481 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5482 }
5483
19957bb3 5484 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5485 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5486 return -EINVAL;
636a5d36 5487
e39e5b5e
JM		 5488 if (auth_type == NL80211_AUTHTYPE_SAE &&
5489 !info->attrs[NL80211_ATTR_SAE_DATA])
5490 return -EINVAL;
5491
5492 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5493 if (auth_type != NL80211_AUTHTYPE_SAE)
5494 return -EINVAL;
5495 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5496 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5497 /* need to include at least Auth Transaction and Status Code */
5498 if (sae_data_len < 4)
5499 return -EINVAL;
5500 }
5501
d5cdfacb
JM		 5502 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5503
95de817b
JB		 5504 /*
5505 * Since we no longer track auth state, ignore
5506 * requests to only change local state.
5507 */
5508 if (local_state_change)
5509 return 0;
5510
4c476991
JB		 5511 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5512 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5513 key.p.key, key.p.key_len, key.idx,
5514 sae_data, sae_data_len);
636a5d36
JM		 5515}
5516
c0692b8f
JB		 5517static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5518 struct genl_info *info,
3dc27d25
JB		 5519 struct cfg80211_crypto_settings *settings,
5520 int cipher_limit)
b23aa676 5521{
c0b2bbd8
JB		 5522 memset(settings, 0, sizeof(*settings));
5523
b23aa676
SO		 5524 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5525
c0692b8f
JB		 5526 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5527 u16 proto;
5528 proto = nla_get_u16(
5529 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5530 settings->control_port_ethertype = cpu_to_be16(proto);
5531 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5532 proto != ETH_P_PAE)
5533 return -EINVAL;
5534 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5535 settings->control_port_no_encrypt = true;
5536 } else
5537 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5538
b23aa676
SO		 5539 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5540 void *data;
5541 int len, i;
5542
5543 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5544 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5545 settings->n_ciphers_pairwise = len / sizeof(u32);
5546
5547 if (len % sizeof(u32))
5548 return -EINVAL;
5549
3dc27d25 5550 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5551 return -EINVAL;
5552
5553 memcpy(settings->ciphers_pairwise, data, len);
5554
5555 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5556 if (!cfg80211_supported_cipher_suite(
5557 &rdev->wiphy,
b23aa676
SO		 5558 settings->ciphers_pairwise[i]))
5559 return -EINVAL;
5560 }
5561
5562 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5563 settings->cipher_group =
5564 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5565 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5566 settings->cipher_group))
b23aa676
SO		 5567 return -EINVAL;
5568 }
5569
5570 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5571 settings->wpa_versions =
5572 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5573 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5574 return -EINVAL;
5575 }
5576
5577 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5578 void *data;
6d30240e 5579 int len;
b23aa676
SO		 5580
5581 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5582 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5583 settings->n_akm_suites = len / sizeof(u32);
5584
5585 if (len % sizeof(u32))
5586 return -EINVAL;
5587
1b9ca027
JM		 5588 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5589 return -EINVAL;
5590
b23aa676 5591 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5592 }
5593
5594 return 0;
5595}
5596
636a5d36
JM		 5597static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5598{
4c476991
JB		 5599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5600 struct net_device *dev = info->user_ptr[1];
19957bb3 5601 struct cfg80211_crypto_settings crypto;
f444de05 5602 struct ieee80211_channel *chan;
3e5d7649 5603 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5604 int err, ssid_len, ie_len = 0;
5605 bool use_mfp = false;
7e7c8926
BG		 5606 u32 flags = 0;
5607 struct ieee80211_ht_cap *ht_capa = NULL;
5608 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5609
f4a11bb0
JB		 5610 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5611 return -EINVAL;
5612
5613 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5614 !info->attrs[NL80211_ATTR_SSID] ||
5615 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5616 return -EINVAL;
5617
4c476991
JB		 5618 if (!rdev->ops->assoc)
5619 return -EOPNOTSUPP;
636a5d36 5620
074ac8df 5621 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5622 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5623 return -EOPNOTSUPP;
eec60b03 5624
19957bb3 5625 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5626
19957bb3
JB		 5627 chan = ieee80211_get_channel(&rdev->wiphy,
5628 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5629 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5630 return -EINVAL;
636a5d36 5631
19957bb3
JB		 5632 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5633 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5634
5635 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5636 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5637 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5638 }
5639
dc6382ce 5640 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5641 enum nl80211_mfp mfp =
dc6382ce 5642 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5643 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5644 use_mfp = true;
4c476991
JB		 5645 else if (mfp != NL80211_MFP_NO)
5646 return -EINVAL;
dc6382ce
JM		 5647 }
5648
3e5d7649
JB		 5649 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5650 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5651
7e7c8926
BG		 5652 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5653 flags |= ASSOC_REQ_DISABLE_HT;
5654
5655 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5656 ht_capa_mask =
5657 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5658
5659 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5660 if (!ht_capa_mask)
5661 return -EINVAL;
5662 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5663 }
5664
c0692b8f 5665 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5666 if (!err)
3e5d7649
JB		 5667 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5668 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5669 &crypto, flags, ht_capa,
5670 ht_capa_mask);
636a5d36 5671
636a5d36
JM		 5672 return err;
5673}
5674
5675static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5676{
4c476991
JB		 5677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5678 struct net_device *dev = info->user_ptr[1];
19957bb3 5679 const u8 *ie = NULL, *bssid;
4c476991 5680 int ie_len = 0;
19957bb3 5681 u16 reason_code;
d5cdfacb 5682 bool local_state_change;
636a5d36 5683
f4a11bb0
JB		 5684 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5685 return -EINVAL;
5686
5687 if (!info->attrs[NL80211_ATTR_MAC])
5688 return -EINVAL;
5689
5690 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5691 return -EINVAL;
5692
4c476991
JB		 5693 if (!rdev->ops->deauth)
5694 return -EOPNOTSUPP;
636a5d36 5695
074ac8df 5696 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5697 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5698 return -EOPNOTSUPP;
eec60b03 5699
19957bb3 5700 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5701
19957bb3
JB		 5702 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5703 if (reason_code == 0) {
f4a11bb0 5704 /* Reason Code 0 is reserved */
4c476991 5705 return -EINVAL;
255e737e 5706 }
636a5d36
JM		 5707
5708 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5709 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5710 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5711 }
5712
d5cdfacb
JM		 5713 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5714
4c476991
JB		 5715 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5716 local_state_change);
636a5d36
JM		 5717}
5718
5719static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5720{
4c476991
JB		 5721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5722 struct net_device *dev = info->user_ptr[1];
19957bb3 5723 const u8 *ie = NULL, *bssid;
4c476991 5724 int ie_len = 0;
19957bb3 5725 u16 reason_code;
d5cdfacb 5726 bool local_state_change;
636a5d36 5727
f4a11bb0
JB		 5728 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5729 return -EINVAL;
5730
5731 if (!info->attrs[NL80211_ATTR_MAC])
5732 return -EINVAL;
5733
5734 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5735 return -EINVAL;
5736
4c476991
JB		 5737 if (!rdev->ops->disassoc)
5738 return -EOPNOTSUPP;
636a5d36 5739
074ac8df 5740 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5741 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5742 return -EOPNOTSUPP;
eec60b03 5743
19957bb3 5744 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5745
19957bb3
JB		 5746 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5747 if (reason_code == 0) {
f4a11bb0 5748 /* Reason Code 0 is reserved */
4c476991 5749 return -EINVAL;
255e737e 5750 }
636a5d36
JM		 5751
5752 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5753 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5754 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5755 }
5756
d5cdfacb
JM		 5757 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5758
4c476991
JB		 5759 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5760 local_state_change);
636a5d36
JM		 5761}
5762
dd5b4cc7
FF		 5763static bool
5764nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5765 int mcast_rate[IEEE80211_NUM_BANDS],
5766 int rateval)
5767{
5768 struct wiphy *wiphy = &rdev->wiphy;
5769 bool found = false;
5770 int band, i;
5771
5772 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5773 struct ieee80211_supported_band *sband;
5774
5775 sband = wiphy->bands[band];
5776 if (!sband)
5777 continue;
5778
5779 for (i = 0; i < sband->n_bitrates; i++) {
5780 if (sband->bitrates[i].bitrate == rateval) {
5781 mcast_rate[band] = i + 1;
5782 found = true;
5783 break;
5784 }
5785 }
5786 }
5787
5788 return found;
5789}
5790
04a773ad
JB		 5791static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5792{
4c476991
JB		 5793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5794 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5795 struct cfg80211_ibss_params ibss;
5796 struct wiphy *wiphy;
fffd0934 5797 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5798 int err;
5799
8e30bc55
JB		 5800 memset(&ibss, 0, sizeof(ibss));
5801
04a773ad
JB		 5802 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5803 return -EINVAL;
5804
683b6d3b 5805 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 5806 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5807 return -EINVAL;
5808
8e30bc55
JB		 5809 ibss.beacon_interval = 100;
5810
5811 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5812 ibss.beacon_interval =
5813 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5814 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5815 return -EINVAL;
5816 }
5817
4c476991
JB		 5818 if (!rdev->ops->join_ibss)
5819 return -EOPNOTSUPP;
04a773ad 5820
4c476991
JB		 5821 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5822 return -EOPNOTSUPP;
04a773ad 5823
79c97e97 5824 wiphy = &rdev->wiphy;
04a773ad 5825
39193498 5826 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5827 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5828
5829 if (!is_valid_ether_addr(ibss.bssid))
5830 return -EINVAL;
5831 }
04a773ad
JB		 5832 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5833 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5834
5835 if (info->attrs[NL80211_ATTR_IE]) {
5836 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5837 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5838 }
5839
683b6d3b
JB		 5840 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5841 if (err)
5842 return err;
04a773ad 5843
683b6d3b 5844 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 5845 return -EINVAL;
5846
db9c64cf
JB		 5847 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5848 return -EINVAL;
5849 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5850 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 5851 return -EINVAL;
db9c64cf 5852
04a773ad 5853 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5854 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5855
fbd2c8dc
TP		 5856 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5857 u8 *rates =
5858 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5859 int n_rates =
5860 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5861 struct ieee80211_supported_band *sband =
683b6d3b 5862 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 5863
34850ab2
JB		 5864 err = ieee80211_get_ratemask(sband, rates, n_rates,
5865 &ibss.basic_rates);
5866 if (err)
5867 return err;
fbd2c8dc 5868 }
dd5b4cc7
FF		 5869
5870 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5871 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5872 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5873 return -EINVAL;
fbd2c8dc 5874
4c476991 5875 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 5876 bool no_ht = false;
5877
4c476991 5878 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 5879 info->attrs[NL80211_ATTR_KEYS],
5880 &no_ht);
4c476991
JB		 5881 if (IS_ERR(connkeys))
5882 return PTR_ERR(connkeys);
de7044ee 5883
3d9d1d66
JB		 5884 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5885 no_ht) {
de7044ee
SM		 5886 kfree(connkeys);
5887 return -EINVAL;
5888 }
4c476991 5889 }
04a773ad 5890
267335d6
AQ		 5891 ibss.control_port =
5892 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5893
4c476991 5894 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5895 if (err)
5896 kfree(connkeys);
04a773ad
JB		 5897 return err;
5898}
5899
5900static int nl80211_leave_ibss(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];
04a773ad 5904
4c476991
JB		 5905 if (!rdev->ops->leave_ibss)
5906 return -EOPNOTSUPP;
04a773ad 5907
4c476991
JB		 5908 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5909 return -EOPNOTSUPP;
04a773ad 5910
4c476991 5911 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5912}
5913
f4e583c8
AQ		 5914static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5915{
5916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5917 struct net_device *dev = info->user_ptr[1];
5918 int mcast_rate[IEEE80211_NUM_BANDS];
5919 u32 nla_rate;
5920 int err;
5921
5922 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5923 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5924 return -EOPNOTSUPP;
5925
5926 if (!rdev->ops->set_mcast_rate)
5927 return -EOPNOTSUPP;
5928
5929 memset(mcast_rate, 0, sizeof(mcast_rate));
5930
5931 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5932 return -EINVAL;
5933
5934 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5935 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5936 return -EINVAL;
5937
5938 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5939
5940 return err;
5941}
5942
5943
aff89a9b
JB		 5944#ifdef CONFIG_NL80211_TESTMODE
5945static struct genl_multicast_group nl80211_testmode_mcgrp = {
5946 .name = "testmode",
5947};
5948
5949static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5950{
4c476991 5951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5952 int err;
5953
5954 if (!info->attrs[NL80211_ATTR_TESTDATA])
5955 return -EINVAL;
5956
aff89a9b
JB		 5957 err = -EOPNOTSUPP;
5958 if (rdev->ops->testmode_cmd) {
5959 rdev->testmode_info = info;
e35e4d28 5960 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 5961 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5962 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5963 rdev->testmode_info = NULL;
5964 }
5965
aff89a9b
JB		 5966 return err;
5967}
5968
71063f0e
WYG		 5969static int nl80211_testmode_dump(struct sk_buff *skb,
5970 struct netlink_callback *cb)
5971{
00918d33 5972 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5973 int err;
5974 long phy_idx;
5975 void *data = NULL;
5976 int data_len = 0;
5977
5978 if (cb->args[0]) {
5979 /*
5980 * 0 is a valid index, but not valid for args[0],
5981 * so we need to offset by 1.
5982 */
5983 phy_idx = cb->args[0] - 1;
5984 } else {
5985 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5986 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5987 nl80211_policy);
5988 if (err)
5989 return err;
00918d33 5990
2bd7e35d
JB		 5991 mutex_lock(&cfg80211_mutex);
5992 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5993 nl80211_fam.attrbuf);
5994 if (IS_ERR(rdev)) {
5995 mutex_unlock(&cfg80211_mutex);
5996 return PTR_ERR(rdev);
00918d33 5997 }
2bd7e35d
JB		 5998 phy_idx = rdev->wiphy_idx;
5999 rdev = NULL;
6000 mutex_unlock(&cfg80211_mutex);
6001
71063f0e
WYG		 6002 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6003 cb->args[1] =
6004 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6005 }
6006
6007 if (cb->args[1]) {
6008 data = nla_data((void *)cb->args[1]);
6009 data_len = nla_len((void *)cb->args[1]);
6010 }
6011
6012 mutex_lock(&cfg80211_mutex);
00918d33
JB		 6013 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6014 if (!rdev) {
71063f0e
WYG		 6015 mutex_unlock(&cfg80211_mutex);
6016 return -ENOENT;
6017 }
00918d33 6018 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 6019 mutex_unlock(&cfg80211_mutex);
6020
00918d33 6021 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6022 err = -EOPNOTSUPP;
6023 goto out_err;
6024 }
6025
6026 while (1) {
15e47304 6027 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6028 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6029 NL80211_CMD_TESTMODE);
6030 struct nlattr *tmdata;
6031
9360ffd1 6032 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6033 genlmsg_cancel(skb, hdr);
6034 break;
6035 }
6036
6037 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6038 if (!tmdata) {
6039 genlmsg_cancel(skb, hdr);
6040 break;
6041 }
e35e4d28 6042 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6043 nla_nest_end(skb, tmdata);
6044
6045 if (err == -ENOBUFS || err == -ENOENT) {
6046 genlmsg_cancel(skb, hdr);
6047 break;
6048 } else if (err) {
6049 genlmsg_cancel(skb, hdr);
6050 goto out_err;
6051 }
6052
6053 genlmsg_end(skb, hdr);
6054 }
6055
6056 err = skb->len;
6057 /* see above */
6058 cb->args[0] = phy_idx + 1;
6059 out_err:
00918d33 6060 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 6061 return err;
6062}
6063
aff89a9b
JB		 6064static struct sk_buff *
6065__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6066 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6067{
6068 struct sk_buff *skb;
6069 void *hdr;
6070 struct nlattr *data;
6071
6072 skb = nlmsg_new(approxlen + 100, gfp);
6073 if (!skb)
6074 return NULL;
6075
15e47304 6076 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6077 if (!hdr) {
6078 kfree_skb(skb);
6079 return NULL;
6080 }
6081
9360ffd1
DM		 6082 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6083 goto nla_put_failure;
aff89a9b
JB		 6084 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6085
6086 ((void **)skb->cb)[0] = rdev;
6087 ((void **)skb->cb)[1] = hdr;
6088 ((void **)skb->cb)[2] = data;
6089
6090 return skb;
6091
6092 nla_put_failure:
6093 kfree_skb(skb);
6094 return NULL;
6095}
6096
6097struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6098 int approxlen)
6099{
6100 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6101
6102 if (WARN_ON(!rdev->testmode_info))
6103 return NULL;
6104
6105 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6106 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6107 rdev->testmode_info->snd_seq,
6108 GFP_KERNEL);
6109}
6110EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6111
6112int cfg80211_testmode_reply(struct sk_buff *skb)
6113{
6114 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6115 void *hdr = ((void **)skb->cb)[1];
6116 struct nlattr *data = ((void **)skb->cb)[2];
6117
6118 if (WARN_ON(!rdev->testmode_info)) {
6119 kfree_skb(skb);
6120 return -EINVAL;
6121 }
6122
6123 nla_nest_end(skb, data);
6124 genlmsg_end(skb, hdr);
6125 return genlmsg_reply(skb, rdev->testmode_info);
6126}
6127EXPORT_SYMBOL(cfg80211_testmode_reply);
6128
6129struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6130 int approxlen, gfp_t gfp)
6131{
6132 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6133
6134 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6135}
6136EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6137
6138void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6139{
6140 void *hdr = ((void **)skb->cb)[1];
6141 struct nlattr *data = ((void **)skb->cb)[2];
6142
6143 nla_nest_end(skb, data);
6144 genlmsg_end(skb, hdr);
6145 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6146}
6147EXPORT_SYMBOL(cfg80211_testmode_event);
6148#endif
6149
b23aa676
SO		 6150static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6151{
4c476991
JB		 6152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6153 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6154 struct cfg80211_connect_params connect;
6155 struct wiphy *wiphy;
fffd0934 6156 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6157 int err;
6158
6159 memset(&connect, 0, sizeof(connect));
6160
6161 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6162 return -EINVAL;
6163
6164 if (!info->attrs[NL80211_ATTR_SSID] ||
6165 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6166 return -EINVAL;
6167
6168 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6169 connect.auth_type =
6170 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6171 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6172 NL80211_CMD_CONNECT))
b23aa676
SO		 6173 return -EINVAL;
6174 } else
6175 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6176
6177 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6178
c0692b8f 6179 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6180 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6181 if (err)
6182 return err;
b23aa676 6183
074ac8df 6184 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6185 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6186 return -EOPNOTSUPP;
b23aa676 6187
79c97e97 6188 wiphy = &rdev->wiphy;
b23aa676 6189
4486ea98
BS		 6190 connect.bg_scan_period = -1;
6191 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6192 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6193 connect.bg_scan_period =
6194 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6195 }
6196
b23aa676
SO		 6197 if (info->attrs[NL80211_ATTR_MAC])
6198 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6199 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6200 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6201
6202 if (info->attrs[NL80211_ATTR_IE]) {
6203 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6204 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6205 }
6206
cee00a95
JM		 6207 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6208 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6209 if (connect.mfp != NL80211_MFP_REQUIRED &&
6210 connect.mfp != NL80211_MFP_NO)
6211 return -EINVAL;
6212 } else {
6213 connect.mfp = NL80211_MFP_NO;
6214 }
6215
b23aa676
SO		 6216 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6217 connect.channel =
6218 ieee80211_get_channel(wiphy,
6219 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6220 if (!connect.channel ||
4c476991
JB		 6221 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6222 return -EINVAL;
b23aa676
SO		 6223 }
6224
fffd0934
JB		 6225 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6226 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6227 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6228 if (IS_ERR(connkeys))
6229 return PTR_ERR(connkeys);
fffd0934
JB		 6230 }
6231
7e7c8926
BG		 6232 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6233 connect.flags |= ASSOC_REQ_DISABLE_HT;
6234
6235 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6236 memcpy(&connect.ht_capa_mask,
6237 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6238 sizeof(connect.ht_capa_mask));
6239
6240 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6241 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6242 kfree(connkeys);
7e7c8926 6243 return -EINVAL;
b4e4f47e 6244 }
7e7c8926
BG		 6245 memcpy(&connect.ht_capa,
6246 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6247 sizeof(connect.ht_capa));
6248 }
6249
fffd0934 6250 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 6251 if (err)
6252 kfree(connkeys);
b23aa676
SO		 6253 return err;
6254}
6255
6256static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6257{
4c476991
JB		 6258 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6259 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6260 u16 reason;
6261
6262 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6263 reason = WLAN_REASON_DEAUTH_LEAVING;
6264 else
6265 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6266
6267 if (reason == 0)
6268 return -EINVAL;
6269
074ac8df 6270 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6271 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6272 return -EOPNOTSUPP;
b23aa676 6273
4c476991 6274 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 6275}
6276
463d0183
JB		 6277static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6278{
4c476991 6279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6280 struct net *net;
6281 int err;
6282 u32 pid;
6283
6284 if (!info->attrs[NL80211_ATTR_PID])
6285 return -EINVAL;
6286
6287 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6288
463d0183 6289 net = get_net_ns_by_pid(pid);
4c476991
JB		 6290 if (IS_ERR(net))
6291 return PTR_ERR(net);
463d0183
JB		 6292
6293 err = 0;
6294
6295 /* check if anything to do */
4c476991
JB		 6296 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6297 err = cfg80211_switch_netns(rdev, net);
463d0183 6298
463d0183 6299 put_net(net);
463d0183
JB		 6300 return err;
6301}
6302
67fbb16b
SO		 6303static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6304{
4c476991 6305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6306 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6307 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6308 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6309 struct cfg80211_pmksa pmksa;
6310
6311 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6312
6313 if (!info->attrs[NL80211_ATTR_MAC])
6314 return -EINVAL;
6315
6316 if (!info->attrs[NL80211_ATTR_PMKID])
6317 return -EINVAL;
6318
67fbb16b
SO		 6319 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6320 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6321
074ac8df 6322 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6323 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6324 return -EOPNOTSUPP;
67fbb16b
SO		 6325
6326 switch (info->genlhdr->cmd) {
6327 case NL80211_CMD_SET_PMKSA:
6328 rdev_ops = rdev->ops->set_pmksa;
6329 break;
6330 case NL80211_CMD_DEL_PMKSA:
6331 rdev_ops = rdev->ops->del_pmksa;
6332 break;
6333 default:
6334 WARN_ON(1);
6335 break;
6336 }
6337
4c476991
JB		 6338 if (!rdev_ops)
6339 return -EOPNOTSUPP;
67fbb16b 6340
4c476991 6341 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6342}
6343
6344static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6345{
4c476991
JB		 6346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6347 struct net_device *dev = info->user_ptr[1];
67fbb16b 6348
074ac8df 6349 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6350 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6351 return -EOPNOTSUPP;
67fbb16b 6352
4c476991
JB		 6353 if (!rdev->ops->flush_pmksa)
6354 return -EOPNOTSUPP;
67fbb16b 6355
e35e4d28 6356 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6357}
6358
109086ce
AN		 6359static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6360{
6361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6362 struct net_device *dev = info->user_ptr[1];
6363 u8 action_code, dialog_token;
6364 u16 status_code;
6365 u8 *peer;
6366
6367 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6368 !rdev->ops->tdls_mgmt)
6369 return -EOPNOTSUPP;
6370
6371 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6372 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6373 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6374 !info->attrs[NL80211_ATTR_IE] ||
6375 !info->attrs[NL80211_ATTR_MAC])
6376 return -EINVAL;
6377
6378 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6379 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6380 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6381 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6382
e35e4d28
HG		 6383 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6384 dialog_token, status_code,
6385 nla_data(info->attrs[NL80211_ATTR_IE]),
6386 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6387}
6388
6389static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6390{
6391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6392 struct net_device *dev = info->user_ptr[1];
6393 enum nl80211_tdls_operation operation;
6394 u8 *peer;
6395
6396 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6397 !rdev->ops->tdls_oper)
6398 return -EOPNOTSUPP;
6399
6400 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6401 !info->attrs[NL80211_ATTR_MAC])
6402 return -EINVAL;
6403
6404 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6405 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6406
e35e4d28 6407 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6408}
6409
9588bbd5
JM		 6410static int nl80211_remain_on_channel(struct sk_buff *skb,
6411 struct genl_info *info)
6412{
4c476991 6413 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6414 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6415 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6416 struct sk_buff *msg;
6417 void *hdr;
6418 u64 cookie;
683b6d3b 6419 u32 duration;
9588bbd5
JM		 6420 int err;
6421
6422 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6423 !info->attrs[NL80211_ATTR_DURATION])
6424 return -EINVAL;
6425
6426 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6427
ebf348fc
JB		 6428 if (!rdev->ops->remain_on_channel ||
6429 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6430 return -EOPNOTSUPP;
6431
9588bbd5 6432 /*
ebf348fc
JB		 6433 * We should be on that channel for at least a minimum amount of
6434 * time (10ms) but no longer than the driver supports.
9588bbd5 6435 */
ebf348fc 6436 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6437 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6438 return -EINVAL;
6439
683b6d3b
JB		 6440 err = nl80211_parse_chandef(rdev, info, &chandef);
6441 if (err)
6442 return err;
9588bbd5
JM		 6443
6444 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6445 if (!msg)
6446 return -ENOMEM;
9588bbd5 6447
15e47304 6448 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6449 NL80211_CMD_REMAIN_ON_CHANNEL);
6450
6451 if (IS_ERR(hdr)) {
6452 err = PTR_ERR(hdr);
6453 goto free_msg;
6454 }
6455
683b6d3b
JB		 6456 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6457 duration, &cookie);
9588bbd5
JM		 6458
6459 if (err)
6460 goto free_msg;
6461
9360ffd1
DM		 6462 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6463 goto nla_put_failure;
9588bbd5
JM		 6464
6465 genlmsg_end(msg, hdr);
4c476991
JB		 6466
6467 return genlmsg_reply(msg, info);
9588bbd5
JM		 6468
6469 nla_put_failure:
6470 err = -ENOBUFS;
6471 free_msg:
6472 nlmsg_free(msg);
9588bbd5
JM		 6473 return err;
6474}
6475
6476static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6477 struct genl_info *info)
6478{
4c476991 6479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6480 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6481 u64 cookie;
9588bbd5
JM		 6482
6483 if (!info->attrs[NL80211_ATTR_COOKIE])
6484 return -EINVAL;
6485
4c476991
JB		 6486 if (!rdev->ops->cancel_remain_on_channel)
6487 return -EOPNOTSUPP;
9588bbd5 6488
9588bbd5
JM		 6489 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6490
e35e4d28 6491 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6492}
6493
13ae75b1
JM		 6494static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6495 u8 *rates, u8 rates_len)
6496{
6497 u8 i;
6498 u32 mask = 0;
6499
6500 for (i = 0; i < rates_len; i++) {
6501 int rate = (rates[i] & 0x7f) * 5;
6502 int ridx;
6503 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6504 struct ieee80211_rate *srate =
6505 &sband->bitrates[ridx];
6506 if (rate == srate->bitrate) {
6507 mask |= 1 << ridx;
6508 break;
6509 }
6510 }
6511 if (ridx == sband->n_bitrates)
6512 return 0; /* rate not found */
6513 }
6514
6515 return mask;
6516}
6517
24db78c0
SW		 6518static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6519 u8 *rates, u8 rates_len,
6520 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6521{
6522 u8 i;
6523
6524 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6525
6526 for (i = 0; i < rates_len; i++) {
6527 int ridx, rbit;
6528
6529 ridx = rates[i] / 8;
6530 rbit = BIT(rates[i] % 8);
6531
6532 /* check validity */
910570b5 6533 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6534 return false;
6535
6536 /* check availability */
6537 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6538 mcs[ridx] |= rbit;
6539 else
6540 return false;
6541 }
6542
6543 return true;
6544}
6545
b54452b0 6546static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6547 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6548 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6549 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6550 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6551};
6552
6553static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6554 struct genl_info *info)
6555{
6556 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6558 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6559 int rem, i;
6560 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6561 struct nlattr *tx_rates;
6562 struct ieee80211_supported_band *sband;
6563
6564 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6565 return -EINVAL;
6566
4c476991
JB		 6567 if (!rdev->ops->set_bitrate_mask)
6568 return -EOPNOTSUPP;
13ae75b1
JM		 6569
6570 memset(&mask, 0, sizeof(mask));
6571 /* Default to all rates enabled */
6572 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6573 sband = rdev->wiphy.bands[i];
6574 mask.control[i].legacy =
6575 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6576 if (sband)
6577 memcpy(mask.control[i].mcs,
6578 sband->ht_cap.mcs.rx_mask,
6579 sizeof(mask.control[i].mcs));
6580 else
6581 memset(mask.control[i].mcs, 0,
6582 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6583 }
6584
6585 /*
6586 * The nested attribute uses enum nl80211_band as the index. This maps
6587 * directly to the enum ieee80211_band values used in cfg80211.
6588 */
24db78c0 6589 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6590 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6591 {
6592 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6593 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6594 return -EINVAL;
13ae75b1 6595 sband = rdev->wiphy.bands[band];
4c476991
JB		 6596 if (sband == NULL)
6597 return -EINVAL;
13ae75b1
JM		 6598 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6599 nla_len(tx_rates), nl80211_txattr_policy);
6600 if (tb[NL80211_TXRATE_LEGACY]) {
6601 mask.control[band].legacy = rateset_to_mask(
6602 sband,
6603 nla_data(tb[NL80211_TXRATE_LEGACY]),
6604 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6605 if ((mask.control[band].legacy == 0) &&
6606 nla_len(tb[NL80211_TXRATE_LEGACY]))
6607 return -EINVAL;
24db78c0
SW		 6608 }
6609 if (tb[NL80211_TXRATE_MCS]) {
6610 if (!ht_rateset_to_mask(
6611 sband,
6612 nla_data(tb[NL80211_TXRATE_MCS]),
6613 nla_len(tb[NL80211_TXRATE_MCS]),
6614 mask.control[band].mcs))
6615 return -EINVAL;
6616 }
6617
6618 if (mask.control[band].legacy == 0) {
6619 /* don't allow empty legacy rates if HT
6620 * is not even supported. */
6621 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6622 return -EINVAL;
6623
6624 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6625 if (mask.control[band].mcs[i])
6626 break;
6627
6628 /* legacy and mcs rates may not be both empty */
6629 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6630 return -EINVAL;
13ae75b1
JM		 6631 }
6632 }
6633
e35e4d28 6634 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 6635}
6636
2e161f78 6637static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6638{
4c476991 6639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6640 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6641 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6642
6643 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6644 return -EINVAL;
6645
2e161f78
JB		 6646 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6647 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6648
71bbc994
JB		 6649 switch (wdev->iftype) {
6650 case NL80211_IFTYPE_STATION:
6651 case NL80211_IFTYPE_ADHOC:
6652 case NL80211_IFTYPE_P2P_CLIENT:
6653 case NL80211_IFTYPE_AP:
6654 case NL80211_IFTYPE_AP_VLAN:
6655 case NL80211_IFTYPE_MESH_POINT:
6656 case NL80211_IFTYPE_P2P_GO:
98104fde 6657 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6658 break;
6659 default:
4c476991 6660 return -EOPNOTSUPP;
71bbc994 6661 }
026331c4
JM		 6662
6663 /* not much point in registering if we can't reply */
4c476991
JB		 6664 if (!rdev->ops->mgmt_tx)
6665 return -EOPNOTSUPP;
026331c4 6666
15e47304 6667 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6668 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6669 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6670}
6671
2e161f78 6672static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6673{
4c476991 6674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6675 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6676 struct cfg80211_chan_def chandef;
026331c4 6677 int err;
d64d373f 6678 void *hdr = NULL;
026331c4 6679 u64 cookie;
e247bd90 6680 struct sk_buff *msg = NULL;
f7ca38df 6681 unsigned int wait = 0;
e247bd90
JB		 6682 bool offchan, no_cck, dont_wait_for_ack;
6683
6684 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 6685
683b6d3b 6686 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 6687 return -EINVAL;
6688
4c476991
JB		 6689 if (!rdev->ops->mgmt_tx)
6690 return -EOPNOTSUPP;
026331c4 6691
71bbc994
JB		 6692 switch (wdev->iftype) {
6693 case NL80211_IFTYPE_STATION:
6694 case NL80211_IFTYPE_ADHOC:
6695 case NL80211_IFTYPE_P2P_CLIENT:
6696 case NL80211_IFTYPE_AP:
6697 case NL80211_IFTYPE_AP_VLAN:
6698 case NL80211_IFTYPE_MESH_POINT:
6699 case NL80211_IFTYPE_P2P_GO:
98104fde 6700 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6701 break;
6702 default:
4c476991 6703 return -EOPNOTSUPP;
71bbc994 6704 }
026331c4 6705
f7ca38df 6706 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6707 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6708 return -EINVAL;
6709 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6710
6711 /*
6712 * We should wait on the channel for at least a minimum amount
6713 * of time (10ms) but no longer than the driver supports.
6714 */
6715 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6716 wait > rdev->wiphy.max_remain_on_channel_duration)
6717 return -EINVAL;
6718
f7ca38df
JB		 6719 }
6720
f7ca38df
JB		 6721 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6722
7c4ef712
JB		 6723 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6724 return -EINVAL;
6725
e9f935e3
RM		 6726 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6727
683b6d3b
JB		 6728 err = nl80211_parse_chandef(rdev, info, &chandef);
6729 if (err)
6730 return err;
026331c4 6731
e247bd90
JB		 6732 if (!dont_wait_for_ack) {
6733 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6734 if (!msg)
6735 return -ENOMEM;
026331c4 6736
15e47304 6737 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6738 NL80211_CMD_FRAME);
026331c4 6739
e247bd90
JB		 6740 if (IS_ERR(hdr)) {
6741 err = PTR_ERR(hdr);
6742 goto free_msg;
6743 }
026331c4 6744 }
e247bd90 6745
683b6d3b 6746 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 6747 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6748 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6749 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6750 if (err)
6751 goto free_msg;
6752
e247bd90 6753 if (msg) {
9360ffd1
DM		 6754 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6755 goto nla_put_failure;
026331c4 6756
e247bd90
JB		 6757 genlmsg_end(msg, hdr);
6758 return genlmsg_reply(msg, info);
6759 }
6760
6761 return 0;
026331c4
JM		 6762
6763 nla_put_failure:
6764 err = -ENOBUFS;
6765 free_msg:
6766 nlmsg_free(msg);
026331c4
JM		 6767 return err;
6768}
6769
f7ca38df
JB		 6770static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6771{
6772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6773 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6774 u64 cookie;
6775
6776 if (!info->attrs[NL80211_ATTR_COOKIE])
6777 return -EINVAL;
6778
6779 if (!rdev->ops->mgmt_tx_cancel_wait)
6780 return -EOPNOTSUPP;
6781
71bbc994
JB		 6782 switch (wdev->iftype) {
6783 case NL80211_IFTYPE_STATION:
6784 case NL80211_IFTYPE_ADHOC:
6785 case NL80211_IFTYPE_P2P_CLIENT:
6786 case NL80211_IFTYPE_AP:
6787 case NL80211_IFTYPE_AP_VLAN:
6788 case NL80211_IFTYPE_P2P_GO:
98104fde 6789 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6790 break;
6791 default:
f7ca38df 6792 return -EOPNOTSUPP;
71bbc994 6793 }
f7ca38df
JB		 6794
6795 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6796
e35e4d28 6797 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 6798}
6799
ffb9eb3d
KV		 6800static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6801{
4c476991 6802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6803 struct wireless_dev *wdev;
4c476991 6804 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6805 u8 ps_state;
6806 bool state;
6807 int err;
6808
4c476991
JB		 6809 if (!info->attrs[NL80211_ATTR_PS_STATE])
6810 return -EINVAL;
ffb9eb3d
KV		 6811
6812 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6813
4c476991
JB		 6814 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6815 return -EINVAL;
ffb9eb3d
KV		 6816
6817 wdev = dev->ieee80211_ptr;
6818
4c476991
JB		 6819 if (!rdev->ops->set_power_mgmt)
6820 return -EOPNOTSUPP;
ffb9eb3d
KV		 6821
6822 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6823
6824 if (state == wdev->ps)
4c476991 6825 return 0;
ffb9eb3d 6826
e35e4d28 6827 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 6828 if (!err)
6829 wdev->ps = state;
ffb9eb3d
KV		 6830 return err;
6831}
6832
6833static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6834{
4c476991 6835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6836 enum nl80211_ps_state ps_state;
6837 struct wireless_dev *wdev;
4c476991 6838 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6839 struct sk_buff *msg;
6840 void *hdr;
6841 int err;
6842
ffb9eb3d
KV		 6843 wdev = dev->ieee80211_ptr;
6844
4c476991
JB		 6845 if (!rdev->ops->set_power_mgmt)
6846 return -EOPNOTSUPP;
ffb9eb3d
KV		 6847
6848 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6849 if (!msg)
6850 return -ENOMEM;
ffb9eb3d 6851
15e47304 6852 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6853 NL80211_CMD_GET_POWER_SAVE);
6854 if (!hdr) {
4c476991 6855 err = -ENOBUFS;
ffb9eb3d
KV		 6856 goto free_msg;
6857 }
6858
6859 if (wdev->ps)
6860 ps_state = NL80211_PS_ENABLED;
6861 else
6862 ps_state = NL80211_PS_DISABLED;
6863
9360ffd1
DM		 6864 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6865 goto nla_put_failure;
ffb9eb3d
KV		 6866
6867 genlmsg_end(msg, hdr);
4c476991 6868 return genlmsg_reply(msg, info);
ffb9eb3d 6869
4c476991 6870 nla_put_failure:
ffb9eb3d 6871 err = -ENOBUFS;
4c476991 6872 free_msg:
ffb9eb3d 6873 nlmsg_free(msg);
ffb9eb3d
KV		 6874 return err;
6875}
6876
d6dc1a38
JO		 6877static struct nla_policy
6878nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6879 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6880 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6881 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6882 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6883 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6884 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6885};
6886
84f10708 6887static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 6888 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 6889{
6890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6891 struct wireless_dev *wdev;
6892 struct net_device *dev = info->user_ptr[1];
6893
d9d8b019 6894 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 6895 return -EINVAL;
6896
6897 wdev = dev->ieee80211_ptr;
6898
6899 if (!rdev->ops->set_cqm_txe_config)
6900 return -EOPNOTSUPP;
6901
6902 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6903 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6904 return -EOPNOTSUPP;
6905
e35e4d28 6906 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 6907}
6908
d6dc1a38
JO		 6909static int nl80211_set_cqm_rssi(struct genl_info *info,
6910 s32 threshold, u32 hysteresis)
6911{
4c476991 6912 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6913 struct wireless_dev *wdev;
4c476991 6914 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6915
6916 if (threshold > 0)
6917 return -EINVAL;
6918
d6dc1a38
JO		 6919 wdev = dev->ieee80211_ptr;
6920
4c476991
JB		 6921 if (!rdev->ops->set_cqm_rssi_config)
6922 return -EOPNOTSUPP;
d6dc1a38 6923
074ac8df 6924 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6925 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6926 return -EOPNOTSUPP;
d6dc1a38 6927
e35e4d28 6928 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 6929}
6930
6931static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6932{
6933 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6934 struct nlattr *cqm;
6935 int err;
6936
6937 cqm = info->attrs[NL80211_ATTR_CQM];
6938 if (!cqm) {
6939 err = -EINVAL;
6940 goto out;
6941 }
6942
6943 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6944 nl80211_attr_cqm_policy);
6945 if (err)
6946 goto out;
6947
6948 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6949 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6950 s32 threshold;
6951 u32 hysteresis;
6952 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6953 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6954 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 6955 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6956 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6957 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6958 u32 rate, pkts, intvl;
6959 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6960 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6961 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6962 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 6963 } else
6964 err = -EINVAL;
6965
6966out:
6967 return err;
6968}
6969
29cbe68c
JB		 6970static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6971{
6972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6973 struct net_device *dev = info->user_ptr[1];
6974 struct mesh_config cfg;
c80d545d 6975 struct mesh_setup setup;
29cbe68c
JB		 6976 int err;
6977
6978 /* start with default */
6979 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6980 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6981
24bdd9f4 6982 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6983 /* and parse parameters if given */
24bdd9f4 6984 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6985 if (err)
6986 return err;
6987 }
6988
6989 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6990 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6991 return -EINVAL;
6992
c80d545d
JC		 6993 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6994 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6995
4bb62344
CYY		 6996 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6997 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6998 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6999 return -EINVAL;
7000
9bdbf04d
MP		 7001 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7002 setup.beacon_interval =
7003 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7004 if (setup.beacon_interval < 10 ||
7005 setup.beacon_interval > 10000)
7006 return -EINVAL;
7007 }
7008
7009 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7010 setup.dtim_period =
7011 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7012 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7013 return -EINVAL;
7014 }
7015
c80d545d
JC		 7016 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7017 /* parse additional setup parameters if given */
7018 err = nl80211_parse_mesh_setup(info, &setup);
7019 if (err)
7020 return err;
7021 }
7022
cc1d2806 7023 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7024 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7025 if (err)
7026 return err;
cc1d2806
JB		 7027 } else {
7028 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7029 setup.chandef.chan = NULL;
cc1d2806
JB		 7030 }
7031
c80d545d 7032 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7033}
7034
7035static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7036{
7037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7038 struct net_device *dev = info->user_ptr[1];
7039
7040 return cfg80211_leave_mesh(rdev, dev);
7041}
7042
dfb89c56 7043#ifdef CONFIG_PM
bb92d199
AK		 7044static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7045 struct cfg80211_registered_device *rdev)
7046{
7047 struct nlattr *nl_pats, *nl_pat;
7048 int i, pat_len;
7049
7050 if (!rdev->wowlan->n_patterns)
7051 return 0;
7052
7053 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7054 if (!nl_pats)
7055 return -ENOBUFS;
7056
7057 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7058 nl_pat = nla_nest_start(msg, i + 1);
7059 if (!nl_pat)
7060 return -ENOBUFS;
7061 pat_len = rdev->wowlan->patterns[i].pattern_len;
7062 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7063 DIV_ROUND_UP(pat_len, 8),
7064 rdev->wowlan->patterns[i].mask) ||
7065 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7066 pat_len, rdev->wowlan->patterns[i].pattern) ||
7067 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7068 rdev->wowlan->patterns[i].pkt_offset))
7069 return -ENOBUFS;
7070 nla_nest_end(msg, nl_pat);
7071 }
7072 nla_nest_end(msg, nl_pats);
7073
7074 return 0;
7075}
7076
2a0e047e
JB		 7077static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7078 struct cfg80211_wowlan_tcp *tcp)
7079{
7080 struct nlattr *nl_tcp;
7081
7082 if (!tcp)
7083 return 0;
7084
7085 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7086 if (!nl_tcp)
7087 return -ENOBUFS;
7088
7089 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7090 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7091 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7092 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7093 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7094 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7095 tcp->payload_len, tcp->payload) ||
7096 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7097 tcp->data_interval) ||
7098 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7099 tcp->wake_len, tcp->wake_data) ||
7100 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7101 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7102 return -ENOBUFS;
7103
7104 if (tcp->payload_seq.len &&
7105 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7106 sizeof(tcp->payload_seq), &tcp->payload_seq))
7107 return -ENOBUFS;
7108
7109 if (tcp->payload_tok.len &&
7110 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7111 sizeof(tcp->payload_tok) + tcp->tokens_size,
7112 &tcp->payload_tok))
7113 return -ENOBUFS;
7114
7115 return 0;
7116}
7117
ff1b6e69
JB		 7118static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7119{
7120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7121 struct sk_buff *msg;
7122 void *hdr;
2a0e047e 7123 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7124
2a0e047e
JB		 7125 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7126 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7127 return -EOPNOTSUPP;
7128
2a0e047e
JB		 7129 if (rdev->wowlan && rdev->wowlan->tcp) {
7130 /* adjust size to have room for all the data */
7131 size += rdev->wowlan->tcp->tokens_size +
7132 rdev->wowlan->tcp->payload_len +
7133 rdev->wowlan->tcp->wake_len +
7134 rdev->wowlan->tcp->wake_len / 8;
7135 }
7136
7137 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7138 if (!msg)
7139 return -ENOMEM;
7140
15e47304 7141 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7142 NL80211_CMD_GET_WOWLAN);
7143 if (!hdr)
7144 goto nla_put_failure;
7145
7146 if (rdev->wowlan) {
7147 struct nlattr *nl_wowlan;
7148
7149 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7150 if (!nl_wowlan)
7151 goto nla_put_failure;
7152
9360ffd1
DM		 7153 if ((rdev->wowlan->any &&
7154 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7155 (rdev->wowlan->disconnect &&
7156 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7157 (rdev->wowlan->magic_pkt &&
7158 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7159 (rdev->wowlan->gtk_rekey_failure &&
7160 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7161 (rdev->wowlan->eap_identity_req &&
7162 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7163 (rdev->wowlan->four_way_handshake &&
7164 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7165 (rdev->wowlan->rfkill_release &&
7166 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7167 goto nla_put_failure;
2a0e047e 7168
bb92d199
AK		 7169 if (nl80211_send_wowlan_patterns(msg, rdev))
7170 goto nla_put_failure;
2a0e047e
JB		 7171
7172 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7173 goto nla_put_failure;
7174
ff1b6e69
JB		 7175 nla_nest_end(msg, nl_wowlan);
7176 }
7177
7178 genlmsg_end(msg, hdr);
7179 return genlmsg_reply(msg, info);
7180
7181nla_put_failure:
7182 nlmsg_free(msg);
7183 return -ENOBUFS;
7184}
7185
2a0e047e
JB		 7186static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7187 struct nlattr *attr,
7188 struct cfg80211_wowlan *trig)
7189{
7190 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7191 struct cfg80211_wowlan_tcp *cfg;
7192 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7193 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7194 u32 size;
7195 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7196 int err, port;
7197
7198 if (!rdev->wiphy.wowlan.tcp)
7199 return -EINVAL;
7200
7201 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7202 nla_data(attr), nla_len(attr),
7203 nl80211_wowlan_tcp_policy);
7204 if (err)
7205 return err;
7206
7207 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7208 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7209 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7210 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7211 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7212 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7213 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7214 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7215 return -EINVAL;
7216
7217 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7218 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7219 return -EINVAL;
7220
7221 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7222 rdev->wiphy.wowlan.tcp->data_interval_max)
7223 return -EINVAL;
7224
7225 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7226 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7227 return -EINVAL;
7228
7229 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7230 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7231 return -EINVAL;
7232
7233 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7234 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7235
7236 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7237 tokens_size = tokln - sizeof(*tok);
7238
7239 if (!tok->len || tokens_size % tok->len)
7240 return -EINVAL;
7241 if (!rdev->wiphy.wowlan.tcp->tok)
7242 return -EINVAL;
7243 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7244 return -EINVAL;
7245 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7246 return -EINVAL;
7247 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7248 return -EINVAL;
7249 if (tok->offset + tok->len > data_size)
7250 return -EINVAL;
7251 }
7252
7253 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7254 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7255 if (!rdev->wiphy.wowlan.tcp->seq)
7256 return -EINVAL;
7257 if (seq->len == 0 || seq->len > 4)
7258 return -EINVAL;
7259 if (seq->len + seq->offset > data_size)
7260 return -EINVAL;
7261 }
7262
7263 size = sizeof(*cfg);
7264 size += data_size;
7265 size += wake_size + wake_mask_size;
7266 size += tokens_size;
7267
7268 cfg = kzalloc(size, GFP_KERNEL);
7269 if (!cfg)
7270 return -ENOMEM;
7271 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7272 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7273 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7274 ETH_ALEN);
7275 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7276 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7277 else
7278 port = 0;
7279#ifdef CONFIG_INET
7280 /* allocate a socket and port for it and use it */
7281 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7282 IPPROTO_TCP, &cfg->sock, 1);
7283 if (err) {
7284 kfree(cfg);
7285 return err;
7286 }
7287 if (inet_csk_get_port(cfg->sock->sk, port)) {
7288 sock_release(cfg->sock);
7289 kfree(cfg);
7290 return -EADDRINUSE;
7291 }
7292 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7293#else
7294 if (!port) {
7295 kfree(cfg);
7296 return -EINVAL;
7297 }
7298 cfg->src_port = port;
7299#endif
7300
7301 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7302 cfg->payload_len = data_size;
7303 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7304 memcpy((void *)cfg->payload,
7305 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7306 data_size);
7307 if (seq)
7308 cfg->payload_seq = *seq;
7309 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7310 cfg->wake_len = wake_size;
7311 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7312 memcpy((void *)cfg->wake_data,
7313 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7314 wake_size);
7315 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7316 data_size + wake_size;
7317 memcpy((void *)cfg->wake_mask,
7318 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7319 wake_mask_size);
7320 if (tok) {
7321 cfg->tokens_size = tokens_size;
7322 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7323 }
7324
7325 trig->tcp = cfg;
7326
7327 return 0;
7328}
7329
ff1b6e69
JB		 7330static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7331{
7332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7333 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7334 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7335 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 7336 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7337 int err, i;
6d52563f 7338 bool prev_enabled = rdev->wowlan;
ff1b6e69 7339
2a0e047e
JB		 7340 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7341 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7342 return -EOPNOTSUPP;
7343
ae33bd81
JB		 7344 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7345 cfg80211_rdev_free_wowlan(rdev);
7346 rdev->wowlan = NULL;
7347 goto set_wakeup;
7348 }
ff1b6e69
JB		 7349
7350 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7351 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7352 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7353 nl80211_wowlan_policy);
7354 if (err)
7355 return err;
7356
7357 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7358 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7359 return -EINVAL;
7360 new_triggers.any = true;
7361 }
7362
7363 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7364 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7365 return -EINVAL;
7366 new_triggers.disconnect = true;
7367 }
7368
7369 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7370 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7371 return -EINVAL;
7372 new_triggers.magic_pkt = true;
7373 }
7374
77dbbb13
JB		 7375 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7376 return -EINVAL;
7377
7378 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7379 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7380 return -EINVAL;
7381 new_triggers.gtk_rekey_failure = true;
7382 }
7383
7384 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7385 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7386 return -EINVAL;
7387 new_triggers.eap_identity_req = true;
7388 }
7389
7390 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7391 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7392 return -EINVAL;
7393 new_triggers.four_way_handshake = true;
7394 }
7395
7396 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7397 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7398 return -EINVAL;
7399 new_triggers.rfkill_release = true;
7400 }
7401
ff1b6e69
JB		 7402 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7403 struct nlattr *pat;
7404 int n_patterns = 0;
bb92d199 7405 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7406 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7407
7408 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7409 rem)
7410 n_patterns++;
7411 if (n_patterns > wowlan->n_patterns)
7412 return -EINVAL;
7413
7414 new_triggers.patterns = kcalloc(n_patterns,
7415 sizeof(new_triggers.patterns[0]),
7416 GFP_KERNEL);
7417 if (!new_triggers.patterns)
7418 return -ENOMEM;
7419
7420 new_triggers.n_patterns = n_patterns;
7421 i = 0;
7422
7423 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7424 rem) {
7425 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7426 nla_data(pat), nla_len(pat), NULL);
7427 err = -EINVAL;
7428 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7429 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7430 goto error;
7431 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7432 mask_len = DIV_ROUND_UP(pat_len, 8);
7433 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7434 mask_len)
7435 goto error;
7436 if (pat_len > wowlan->pattern_max_len ||
7437 pat_len < wowlan->pattern_min_len)
7438 goto error;
7439
bb92d199
AK		 7440 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7441 pkt_offset = 0;
7442 else
7443 pkt_offset = nla_get_u32(
7444 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7445 if (pkt_offset > wowlan->max_pkt_offset)
7446 goto error;
7447 new_triggers.patterns[i].pkt_offset = pkt_offset;
7448
ff1b6e69
JB		 7449 new_triggers.patterns[i].mask =
7450 kmalloc(mask_len + pat_len, GFP_KERNEL);
7451 if (!new_triggers.patterns[i].mask) {
7452 err = -ENOMEM;
7453 goto error;
7454 }
7455 new_triggers.patterns[i].pattern =
7456 new_triggers.patterns[i].mask + mask_len;
7457 memcpy(new_triggers.patterns[i].mask,
7458 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7459 mask_len);
7460 new_triggers.patterns[i].pattern_len = pat_len;
7461 memcpy(new_triggers.patterns[i].pattern,
7462 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7463 pat_len);
7464 i++;
7465 }
7466 }
7467
2a0e047e
JB		 7468 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7469 err = nl80211_parse_wowlan_tcp(
7470 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7471 &new_triggers);
7472 if (err)
7473 goto error;
7474 }
7475
ae33bd81
JB		 7476 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7477 if (!ntrig) {
7478 err = -ENOMEM;
7479 goto error;
ff1b6e69 7480 }
ae33bd81
JB		 7481 cfg80211_rdev_free_wowlan(rdev);
7482 rdev->wowlan = ntrig;
ff1b6e69 7483
ae33bd81 7484 set_wakeup:
6d52563f 7485 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 7486 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 7487
ff1b6e69
JB		 7488 return 0;
7489 error:
7490 for (i = 0; i < new_triggers.n_patterns; i++)
7491 kfree(new_triggers.patterns[i].mask);
7492 kfree(new_triggers.patterns);
2a0e047e
JB		 7493 if (new_triggers.tcp && new_triggers.tcp->sock)
7494 sock_release(new_triggers.tcp->sock);
7495 kfree(new_triggers.tcp);
ff1b6e69
JB		 7496 return err;
7497}
dfb89c56 7498#endif
ff1b6e69 7499
e5497d76
JB		 7500static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7501{
7502 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7503 struct net_device *dev = info->user_ptr[1];
7504 struct wireless_dev *wdev = dev->ieee80211_ptr;
7505 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7506 struct cfg80211_gtk_rekey_data rekey_data;
7507 int err;
7508
7509 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7510 return -EINVAL;
7511
7512 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7513 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7514 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7515 nl80211_rekey_policy);
7516 if (err)
7517 return err;
7518
7519 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7520 return -ERANGE;
7521 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7522 return -ERANGE;
7523 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7524 return -ERANGE;
7525
7526 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7527 NL80211_KEK_LEN);
7528 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7529 NL80211_KCK_LEN);
7530 memcpy(rekey_data.replay_ctr,
7531 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7532 NL80211_REPLAY_CTR_LEN);
7533
7534 wdev_lock(wdev);
7535 if (!wdev->current_bss) {
7536 err = -ENOTCONN;
7537 goto out;
7538 }
7539
7540 if (!rdev->ops->set_rekey_data) {
7541 err = -EOPNOTSUPP;
7542 goto out;
7543 }
7544
e35e4d28 7545 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 7546 out:
7547 wdev_unlock(wdev);
7548 return err;
7549}
7550
28946da7
JB		 7551static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7552 struct genl_info *info)
7553{
7554 struct net_device *dev = info->user_ptr[1];
7555 struct wireless_dev *wdev = dev->ieee80211_ptr;
7556
7557 if (wdev->iftype != NL80211_IFTYPE_AP &&
7558 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7559 return -EINVAL;
7560
15e47304 7561 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 7562 return -EBUSY;
7563
15e47304 7564 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 7565 return 0;
7566}
7567
7f6cf311
JB		 7568static int nl80211_probe_client(struct sk_buff *skb,
7569 struct genl_info *info)
7570{
7571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7572 struct net_device *dev = info->user_ptr[1];
7573 struct wireless_dev *wdev = dev->ieee80211_ptr;
7574 struct sk_buff *msg;
7575 void *hdr;
7576 const u8 *addr;
7577 u64 cookie;
7578 int err;
7579
7580 if (wdev->iftype != NL80211_IFTYPE_AP &&
7581 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7582 return -EOPNOTSUPP;
7583
7584 if (!info->attrs[NL80211_ATTR_MAC])
7585 return -EINVAL;
7586
7587 if (!rdev->ops->probe_client)
7588 return -EOPNOTSUPP;
7589
7590 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7591 if (!msg)
7592 return -ENOMEM;
7593
15e47304 7594 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 7595 NL80211_CMD_PROBE_CLIENT);
7596
7597 if (IS_ERR(hdr)) {
7598 err = PTR_ERR(hdr);
7599 goto free_msg;
7600 }
7601
7602 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7603
e35e4d28 7604 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 7605 if (err)
7606 goto free_msg;
7607
9360ffd1
DM		 7608 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7609 goto nla_put_failure;
7f6cf311
JB		 7610
7611 genlmsg_end(msg, hdr);
7612
7613 return genlmsg_reply(msg, info);
7614
7615 nla_put_failure:
7616 err = -ENOBUFS;
7617 free_msg:
7618 nlmsg_free(msg);
7619 return err;
7620}
7621
5e760230
JB		 7622static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7623{
7624 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 7625 struct cfg80211_beacon_registration *reg, *nreg;
7626 int rv;
5e760230
JB		 7627
7628 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7629 return -EOPNOTSUPP;
7630
37c73b5f
BG		 7631 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7632 if (!nreg)
7633 return -ENOMEM;
7634
7635 /* First, check if already registered. */
7636 spin_lock_bh(&rdev->beacon_registrations_lock);
7637 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7638 if (reg->nlportid == info->snd_portid) {
7639 rv = -EALREADY;
7640 goto out_err;
7641 }
7642 }
7643 /* Add it to the list */
7644 nreg->nlportid = info->snd_portid;
7645 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 7646
37c73b5f 7647 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 7648
7649 return 0;
37c73b5f
BG		 7650out_err:
7651 spin_unlock_bh(&rdev->beacon_registrations_lock);
7652 kfree(nreg);
7653 return rv;
5e760230
JB		 7654}
7655
98104fde
JB		 7656static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7657{
7658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7659 struct wireless_dev *wdev = info->user_ptr[1];
7660 int err;
7661
7662 if (!rdev->ops->start_p2p_device)
7663 return -EOPNOTSUPP;
7664
7665 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7666 return -EOPNOTSUPP;
7667
7668 if (wdev->p2p_started)
7669 return 0;
7670
7671 mutex_lock(&rdev->devlist_mtx);
7672 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7673 mutex_unlock(&rdev->devlist_mtx);
7674 if (err)
7675 return err;
7676
eeb126e9 7677 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 7678 if (err)
7679 return err;
7680
7681 wdev->p2p_started = true;
7682 mutex_lock(&rdev->devlist_mtx);
7683 rdev->opencount++;
7684 mutex_unlock(&rdev->devlist_mtx);
7685
7686 return 0;
7687}
7688
7689static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7690{
7691 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7692 struct wireless_dev *wdev = info->user_ptr[1];
7693
7694 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7695 return -EOPNOTSUPP;
7696
7697 if (!rdev->ops->stop_p2p_device)
7698 return -EOPNOTSUPP;
7699
7700 if (!wdev->p2p_started)
7701 return 0;
7702
eeb126e9 7703 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 7704 wdev->p2p_started = false;
7705
7706 mutex_lock(&rdev->devlist_mtx);
7707 rdev->opencount--;
7708 mutex_unlock(&rdev->devlist_mtx);
7709
7710 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7711 rdev->scan_req->aborted = true;
7712 ___cfg80211_scan_done(rdev, true);
7713 }
7714
7715 return 0;
7716}
7717
4c476991
JB		 7718#define NL80211_FLAG_NEED_WIPHY 0x01
7719#define NL80211_FLAG_NEED_NETDEV 0x02
7720#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 7721#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7722#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7723 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 7724#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 7725/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 7726#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7727 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 7728
7729static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7730 struct genl_info *info)
7731{
7732 struct cfg80211_registered_device *rdev;
89a54e48 7733 struct wireless_dev *wdev;
4c476991 7734 struct net_device *dev;
4c476991
JB		 7735 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7736
7737 if (rtnl)
7738 rtnl_lock();
7739
7740 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 7741 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 7742 if (IS_ERR(rdev)) {
7743 if (rtnl)
7744 rtnl_unlock();
7745 return PTR_ERR(rdev);
7746 }
7747 info->user_ptr[0] = rdev;
1bf614ef
JB		 7748 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7749 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7750 mutex_lock(&cfg80211_mutex);
7751 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7752 info->attrs);
7753 if (IS_ERR(wdev)) {
7754 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7755 if (rtnl)
7756 rtnl_unlock();
89a54e48 7757 return PTR_ERR(wdev);
4c476991 7758 }
89a54e48 7759
89a54e48
JB		 7760 dev = wdev->netdev;
7761 rdev = wiphy_to_dev(wdev->wiphy);
7762
1bf614ef
JB		 7763 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7764 if (!dev) {
7765 mutex_unlock(&cfg80211_mutex);
7766 if (rtnl)
7767 rtnl_unlock();
7768 return -EINVAL;
7769 }
7770
7771 info->user_ptr[1] = dev;
7772 } else {
7773 info->user_ptr[1] = wdev;
41265714 7774 }
1bf614ef
JB		 7775
7776 if (dev) {
7777 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7778 !netif_running(dev)) {
7779 mutex_unlock(&cfg80211_mutex);
7780 if (rtnl)
7781 rtnl_unlock();
7782 return -ENETDOWN;
7783 }
7784
7785 dev_hold(dev);
98104fde
JB		 7786 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7787 if (!wdev->p2p_started) {
7788 mutex_unlock(&cfg80211_mutex);
7789 if (rtnl)
7790 rtnl_unlock();
7791 return -ENETDOWN;
7792 }
41265714 7793 }
89a54e48 7794
89a54e48
JB		 7795 cfg80211_lock_rdev(rdev);
7796
7797 mutex_unlock(&cfg80211_mutex);
7798
4c476991 7799 info->user_ptr[0] = rdev;
4c476991
JB		 7800 }
7801
7802 return 0;
7803}
7804
7805static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7806 struct genl_info *info)
7807{
7808 if (info->user_ptr[0])
7809 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7810 if (info->user_ptr[1]) {
7811 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7812 struct wireless_dev *wdev = info->user_ptr[1];
7813
7814 if (wdev->netdev)
7815 dev_put(wdev->netdev);
7816 } else {
7817 dev_put(info->user_ptr[1]);
7818 }
7819 }
4c476991
JB		 7820 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7821 rtnl_unlock();
7822}
7823
55682965
JB		 7824static struct genl_ops nl80211_ops[] = {
7825 {
7826 .cmd = NL80211_CMD_GET_WIPHY,
7827 .doit = nl80211_get_wiphy,
7828 .dumpit = nl80211_dump_wiphy,
7829 .policy = nl80211_policy,
7830 /* can be retrieved by unprivileged users */
4c476991 7831 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7832 },
7833 {
7834 .cmd = NL80211_CMD_SET_WIPHY,
7835 .doit = nl80211_set_wiphy,
7836 .policy = nl80211_policy,
7837 .flags = GENL_ADMIN_PERM,
4c476991 7838 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7839 },
7840 {
7841 .cmd = NL80211_CMD_GET_INTERFACE,
7842 .doit = nl80211_get_interface,
7843 .dumpit = nl80211_dump_interface,
7844 .policy = nl80211_policy,
7845 /* can be retrieved by unprivileged users */
72fb2abc 7846 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7847 },
7848 {
7849 .cmd = NL80211_CMD_SET_INTERFACE,
7850 .doit = nl80211_set_interface,
7851 .policy = nl80211_policy,
7852 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7853 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7854 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7855 },
7856 {
7857 .cmd = NL80211_CMD_NEW_INTERFACE,
7858 .doit = nl80211_new_interface,
7859 .policy = nl80211_policy,
7860 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7861 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7862 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7863 },
7864 {
7865 .cmd = NL80211_CMD_DEL_INTERFACE,
7866 .doit = nl80211_del_interface,
7867 .policy = nl80211_policy,
41ade00f 7868 .flags = GENL_ADMIN_PERM,
84efbb84 7869 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7870 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7871 },
7872 {
7873 .cmd = NL80211_CMD_GET_KEY,
7874 .doit = nl80211_get_key,
7875 .policy = nl80211_policy,
7876 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7877 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7878 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7879 },
7880 {
7881 .cmd = NL80211_CMD_SET_KEY,
7882 .doit = nl80211_set_key,
7883 .policy = nl80211_policy,
7884 .flags = GENL_ADMIN_PERM,
41265714 7885 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7886 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7887 },
7888 {
7889 .cmd = NL80211_CMD_NEW_KEY,
7890 .doit = nl80211_new_key,
7891 .policy = nl80211_policy,
7892 .flags = GENL_ADMIN_PERM,
41265714 7893 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7894 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7895 },
7896 {
7897 .cmd = NL80211_CMD_DEL_KEY,
7898 .doit = nl80211_del_key,
7899 .policy = nl80211_policy,
55682965 7900 .flags = GENL_ADMIN_PERM,
41265714 7901 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7902 NL80211_FLAG_NEED_RTNL,
55682965 7903 },
ed1b6cc7
JB		 7904 {
7905 .cmd = NL80211_CMD_SET_BEACON,
7906 .policy = nl80211_policy,
7907 .flags = GENL_ADMIN_PERM,
8860020e 7908 .doit = nl80211_set_beacon,
2b5f8b0b 7909 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7910 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7911 },
7912 {
8860020e 7913 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7914 .policy = nl80211_policy,
7915 .flags = GENL_ADMIN_PERM,
8860020e 7916 .doit = nl80211_start_ap,
2b5f8b0b 7917 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7918 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7919 },
7920 {
8860020e 7921 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7922 .policy = nl80211_policy,
7923 .flags = GENL_ADMIN_PERM,
8860020e 7924 .doit = nl80211_stop_ap,
2b5f8b0b 7925 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7926 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7927 },
5727ef1b
JB		 7928 {
7929 .cmd = NL80211_CMD_GET_STATION,
7930 .doit = nl80211_get_station,
2ec600d6 7931 .dumpit = nl80211_dump_station,
5727ef1b 7932 .policy = nl80211_policy,
4c476991
JB		 7933 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7934 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7935 },
7936 {
7937 .cmd = NL80211_CMD_SET_STATION,
7938 .doit = nl80211_set_station,
7939 .policy = nl80211_policy,
7940 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7941 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7942 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7943 },
7944 {
7945 .cmd = NL80211_CMD_NEW_STATION,
7946 .doit = nl80211_new_station,
7947 .policy = nl80211_policy,
7948 .flags = GENL_ADMIN_PERM,
41265714 7949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7950 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7951 },
7952 {
7953 .cmd = NL80211_CMD_DEL_STATION,
7954 .doit = nl80211_del_station,
7955 .policy = nl80211_policy,
2ec600d6 7956 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7958 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7959 },
7960 {
7961 .cmd = NL80211_CMD_GET_MPATH,
7962 .doit = nl80211_get_mpath,
7963 .dumpit = nl80211_dump_mpath,
7964 .policy = nl80211_policy,
7965 .flags = GENL_ADMIN_PERM,
41265714 7966 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7967 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7968 },
7969 {
7970 .cmd = NL80211_CMD_SET_MPATH,
7971 .doit = nl80211_set_mpath,
7972 .policy = nl80211_policy,
7973 .flags = GENL_ADMIN_PERM,
41265714 7974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7975 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7976 },
7977 {
7978 .cmd = NL80211_CMD_NEW_MPATH,
7979 .doit = nl80211_new_mpath,
7980 .policy = nl80211_policy,
7981 .flags = GENL_ADMIN_PERM,
41265714 7982 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7983 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7984 },
7985 {
7986 .cmd = NL80211_CMD_DEL_MPATH,
7987 .doit = nl80211_del_mpath,
7988 .policy = nl80211_policy,
9f1ba906 7989 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7990 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7991 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 7992 },
7993 {
7994 .cmd = NL80211_CMD_SET_BSS,
7995 .doit = nl80211_set_bss,
7996 .policy = nl80211_policy,
b2e1b302 7997 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7998 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7999 NL80211_FLAG_NEED_RTNL,
b2e1b302 8000 },
f130347c
LR		 8001 {
8002 .cmd = NL80211_CMD_GET_REG,
8003 .doit = nl80211_get_reg,
8004 .policy = nl80211_policy,
8005 /* can be retrieved by unprivileged users */
8006 },
b2e1b302
LR		 8007 {
8008 .cmd = NL80211_CMD_SET_REG,
8009 .doit = nl80211_set_reg,
8010 .policy = nl80211_policy,
8011 .flags = GENL_ADMIN_PERM,
8012 },
8013 {
8014 .cmd = NL80211_CMD_REQ_SET_REG,
8015 .doit = nl80211_req_set_reg,
8016 .policy = nl80211_policy,
93da9cc1 8017 .flags = GENL_ADMIN_PERM,
8018 },
8019 {
24bdd9f4
JC		 8020 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8021 .doit = nl80211_get_mesh_config,
93da9cc1 8022 .policy = nl80211_policy,
8023 /* can be retrieved by unprivileged users */
2b5f8b0b 8024 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8025 NL80211_FLAG_NEED_RTNL,
93da9cc1 8026 },
8027 {
24bdd9f4
JC		 8028 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8029 .doit = nl80211_update_mesh_config,
93da9cc1 8030 .policy = nl80211_policy,
9aed3cc1 8031 .flags = GENL_ADMIN_PERM,
29cbe68c 8032 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8033 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8034 },
2a519311
JB		 8035 {
8036 .cmd = NL80211_CMD_TRIGGER_SCAN,
8037 .doit = nl80211_trigger_scan,
8038 .policy = nl80211_policy,
8039 .flags = GENL_ADMIN_PERM,
fd014284 8040 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8041 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8042 },
8043 {
8044 .cmd = NL80211_CMD_GET_SCAN,
8045 .policy = nl80211_policy,
8046 .dumpit = nl80211_dump_scan,
8047 },
807f8a8c
LC		 8048 {
8049 .cmd = NL80211_CMD_START_SCHED_SCAN,
8050 .doit = nl80211_start_sched_scan,
8051 .policy = nl80211_policy,
8052 .flags = GENL_ADMIN_PERM,
8053 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8054 NL80211_FLAG_NEED_RTNL,
8055 },
8056 {
8057 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8058 .doit = nl80211_stop_sched_scan,
8059 .policy = nl80211_policy,
8060 .flags = GENL_ADMIN_PERM,
8061 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8062 NL80211_FLAG_NEED_RTNL,
8063 },
636a5d36
JM		 8064 {
8065 .cmd = NL80211_CMD_AUTHENTICATE,
8066 .doit = nl80211_authenticate,
8067 .policy = nl80211_policy,
8068 .flags = GENL_ADMIN_PERM,
41265714 8069 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8070 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8071 },
8072 {
8073 .cmd = NL80211_CMD_ASSOCIATE,
8074 .doit = nl80211_associate,
8075 .policy = nl80211_policy,
8076 .flags = GENL_ADMIN_PERM,
41265714 8077 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8078 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8079 },
8080 {
8081 .cmd = NL80211_CMD_DEAUTHENTICATE,
8082 .doit = nl80211_deauthenticate,
8083 .policy = nl80211_policy,
8084 .flags = GENL_ADMIN_PERM,
41265714 8085 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8086 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8087 },
8088 {
8089 .cmd = NL80211_CMD_DISASSOCIATE,
8090 .doit = nl80211_disassociate,
8091 .policy = nl80211_policy,
8092 .flags = GENL_ADMIN_PERM,
41265714 8093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8094 NL80211_FLAG_NEED_RTNL,
636a5d36 8095 },
04a773ad
JB		 8096 {
8097 .cmd = NL80211_CMD_JOIN_IBSS,
8098 .doit = nl80211_join_ibss,
8099 .policy = nl80211_policy,
8100 .flags = GENL_ADMIN_PERM,
41265714 8101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8102 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8103 },
8104 {
8105 .cmd = NL80211_CMD_LEAVE_IBSS,
8106 .doit = nl80211_leave_ibss,
8107 .policy = nl80211_policy,
8108 .flags = GENL_ADMIN_PERM,
41265714 8109 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8110 NL80211_FLAG_NEED_RTNL,
04a773ad 8111 },
aff89a9b
JB		 8112#ifdef CONFIG_NL80211_TESTMODE
8113 {
8114 .cmd = NL80211_CMD_TESTMODE,
8115 .doit = nl80211_testmode_do,
71063f0e 8116 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8117 .policy = nl80211_policy,
8118 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8119 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8120 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8121 },
8122#endif
b23aa676
SO		 8123 {
8124 .cmd = NL80211_CMD_CONNECT,
8125 .doit = nl80211_connect,
8126 .policy = nl80211_policy,
8127 .flags = GENL_ADMIN_PERM,
41265714 8128 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8129 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8130 },
8131 {
8132 .cmd = NL80211_CMD_DISCONNECT,
8133 .doit = nl80211_disconnect,
8134 .policy = nl80211_policy,
8135 .flags = GENL_ADMIN_PERM,
41265714 8136 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8137 NL80211_FLAG_NEED_RTNL,
b23aa676 8138 },
463d0183
JB		 8139 {
8140 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8141 .doit = nl80211_wiphy_netns,
8142 .policy = nl80211_policy,
8143 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8144 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8145 NL80211_FLAG_NEED_RTNL,
463d0183 8146 },
61fa713c
HS		 8147 {
8148 .cmd = NL80211_CMD_GET_SURVEY,
8149 .policy = nl80211_policy,
8150 .dumpit = nl80211_dump_survey,
8151 },
67fbb16b
SO		 8152 {
8153 .cmd = NL80211_CMD_SET_PMKSA,
8154 .doit = nl80211_setdel_pmksa,
8155 .policy = nl80211_policy,
8156 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8158 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8159 },
8160 {
8161 .cmd = NL80211_CMD_DEL_PMKSA,
8162 .doit = nl80211_setdel_pmksa,
8163 .policy = nl80211_policy,
8164 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8165 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8166 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8167 },
8168 {
8169 .cmd = NL80211_CMD_FLUSH_PMKSA,
8170 .doit = nl80211_flush_pmksa,
8171 .policy = nl80211_policy,
8172 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8173 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8174 NL80211_FLAG_NEED_RTNL,
67fbb16b 8175 },
9588bbd5
JM		 8176 {
8177 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8178 .doit = nl80211_remain_on_channel,
8179 .policy = nl80211_policy,
8180 .flags = GENL_ADMIN_PERM,
71bbc994 8181 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8182 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8183 },
8184 {
8185 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8186 .doit = nl80211_cancel_remain_on_channel,
8187 .policy = nl80211_policy,
8188 .flags = GENL_ADMIN_PERM,
71bbc994 8189 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8190 NL80211_FLAG_NEED_RTNL,
9588bbd5 8191 },
13ae75b1
JM		 8192 {
8193 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8194 .doit = nl80211_set_tx_bitrate_mask,
8195 .policy = nl80211_policy,
8196 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8197 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8198 NL80211_FLAG_NEED_RTNL,
13ae75b1 8199 },
026331c4 8200 {
2e161f78
JB		 8201 .cmd = NL80211_CMD_REGISTER_FRAME,
8202 .doit = nl80211_register_mgmt,
026331c4
JM		 8203 .policy = nl80211_policy,
8204 .flags = GENL_ADMIN_PERM,
71bbc994 8205 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8206 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8207 },
8208 {
2e161f78
JB		 8209 .cmd = NL80211_CMD_FRAME,
8210 .doit = nl80211_tx_mgmt,
026331c4 8211 .policy = nl80211_policy,
f7ca38df 8212 .flags = GENL_ADMIN_PERM,
71bbc994 8213 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8214 NL80211_FLAG_NEED_RTNL,
8215 },
8216 {
8217 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8218 .doit = nl80211_tx_mgmt_cancel_wait,
8219 .policy = nl80211_policy,
026331c4 8220 .flags = GENL_ADMIN_PERM,
71bbc994 8221 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8222 NL80211_FLAG_NEED_RTNL,
026331c4 8223 },
ffb9eb3d
KV		 8224 {
8225 .cmd = NL80211_CMD_SET_POWER_SAVE,
8226 .doit = nl80211_set_power_save,
8227 .policy = nl80211_policy,
8228 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8229 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8230 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8231 },
8232 {
8233 .cmd = NL80211_CMD_GET_POWER_SAVE,
8234 .doit = nl80211_get_power_save,
8235 .policy = nl80211_policy,
8236 /* can be retrieved by unprivileged users */
4c476991
JB		 8237 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8238 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8239 },
d6dc1a38
JO		 8240 {
8241 .cmd = NL80211_CMD_SET_CQM,
8242 .doit = nl80211_set_cqm,
8243 .policy = nl80211_policy,
8244 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8245 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8246 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8247 },
f444de05
JB		 8248 {
8249 .cmd = NL80211_CMD_SET_CHANNEL,
8250 .doit = nl80211_set_channel,
8251 .policy = nl80211_policy,
8252 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8253 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8254 NL80211_FLAG_NEED_RTNL,
f444de05 8255 },
e8347eba
BJ		 8256 {
8257 .cmd = NL80211_CMD_SET_WDS_PEER,
8258 .doit = nl80211_set_wds_peer,
8259 .policy = nl80211_policy,
8260 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8261 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8262 NL80211_FLAG_NEED_RTNL,
e8347eba 8263 },
29cbe68c
JB		 8264 {
8265 .cmd = NL80211_CMD_JOIN_MESH,
8266 .doit = nl80211_join_mesh,
8267 .policy = nl80211_policy,
8268 .flags = GENL_ADMIN_PERM,
8269 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8270 NL80211_FLAG_NEED_RTNL,
8271 },
8272 {
8273 .cmd = NL80211_CMD_LEAVE_MESH,
8274 .doit = nl80211_leave_mesh,
8275 .policy = nl80211_policy,
8276 .flags = GENL_ADMIN_PERM,
8277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8278 NL80211_FLAG_NEED_RTNL,
8279 },
dfb89c56 8280#ifdef CONFIG_PM
ff1b6e69
JB		 8281 {
8282 .cmd = NL80211_CMD_GET_WOWLAN,
8283 .doit = nl80211_get_wowlan,
8284 .policy = nl80211_policy,
8285 /* can be retrieved by unprivileged users */
8286 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8287 NL80211_FLAG_NEED_RTNL,
8288 },
8289 {
8290 .cmd = NL80211_CMD_SET_WOWLAN,
8291 .doit = nl80211_set_wowlan,
8292 .policy = nl80211_policy,
8293 .flags = GENL_ADMIN_PERM,
8294 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8295 NL80211_FLAG_NEED_RTNL,
8296 },
dfb89c56 8297#endif
e5497d76
JB		 8298 {
8299 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8300 .doit = nl80211_set_rekey_data,
8301 .policy = nl80211_policy,
8302 .flags = GENL_ADMIN_PERM,
8303 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8304 NL80211_FLAG_NEED_RTNL,
8305 },
109086ce
AN		 8306 {
8307 .cmd = NL80211_CMD_TDLS_MGMT,
8308 .doit = nl80211_tdls_mgmt,
8309 .policy = nl80211_policy,
8310 .flags = GENL_ADMIN_PERM,
8311 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8312 NL80211_FLAG_NEED_RTNL,
8313 },
8314 {
8315 .cmd = NL80211_CMD_TDLS_OPER,
8316 .doit = nl80211_tdls_oper,
8317 .policy = nl80211_policy,
8318 .flags = GENL_ADMIN_PERM,
8319 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8320 NL80211_FLAG_NEED_RTNL,
8321 },
28946da7
JB		 8322 {
8323 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8324 .doit = nl80211_register_unexpected_frame,
8325 .policy = nl80211_policy,
8326 .flags = GENL_ADMIN_PERM,
8327 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8328 NL80211_FLAG_NEED_RTNL,
8329 },
7f6cf311
JB		 8330 {
8331 .cmd = NL80211_CMD_PROBE_CLIENT,
8332 .doit = nl80211_probe_client,
8333 .policy = nl80211_policy,
8334 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8336 NL80211_FLAG_NEED_RTNL,
8337 },
5e760230
JB		 8338 {
8339 .cmd = NL80211_CMD_REGISTER_BEACONS,
8340 .doit = nl80211_register_beacons,
8341 .policy = nl80211_policy,
8342 .flags = GENL_ADMIN_PERM,
8343 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8344 NL80211_FLAG_NEED_RTNL,
8345 },
1d9d9213
SW		 8346 {
8347 .cmd = NL80211_CMD_SET_NOACK_MAP,
8348 .doit = nl80211_set_noack_map,
8349 .policy = nl80211_policy,
8350 .flags = GENL_ADMIN_PERM,
8351 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8352 NL80211_FLAG_NEED_RTNL,
8353 },
98104fde
JB		 8354 {
8355 .cmd = NL80211_CMD_START_P2P_DEVICE,
8356 .doit = nl80211_start_p2p_device,
8357 .policy = nl80211_policy,
8358 .flags = GENL_ADMIN_PERM,
8359 .internal_flags = NL80211_FLAG_NEED_WDEV |
8360 NL80211_FLAG_NEED_RTNL,
8361 },
8362 {
8363 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8364 .doit = nl80211_stop_p2p_device,
8365 .policy = nl80211_policy,
8366 .flags = GENL_ADMIN_PERM,
8367 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8368 NL80211_FLAG_NEED_RTNL,
8369 },
f4e583c8
AQ		 8370 {
8371 .cmd = NL80211_CMD_SET_MCAST_RATE,
8372 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8373 .policy = nl80211_policy,
8374 .flags = GENL_ADMIN_PERM,
8375 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8376 NL80211_FLAG_NEED_RTNL,
8377 },
8378 {
8379 .cmd = NL80211_CMD_SET_MAC_ACL,
8380 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8381 .policy = nl80211_policy,
8382 .flags = GENL_ADMIN_PERM,
8383 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8384 NL80211_FLAG_NEED_RTNL,
8385 },
04f39047
SW		 8386 {
8387 .cmd = NL80211_CMD_RADAR_DETECT,
8388 .doit = nl80211_start_radar_detection,
8389 .policy = nl80211_policy,
8390 .flags = GENL_ADMIN_PERM,
8391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8392 NL80211_FLAG_NEED_RTNL,
8393 },
55682965 8394};
9588bbd5 8395
6039f6d2
JM		 8396static struct genl_multicast_group nl80211_mlme_mcgrp = {
8397 .name = "mlme",
8398};
55682965
JB		 8399
8400/* multicast groups */
8401static struct genl_multicast_group nl80211_config_mcgrp = {
8402 .name = "config",
8403};
2a519311
JB		 8404static struct genl_multicast_group nl80211_scan_mcgrp = {
8405 .name = "scan",
8406};
73d54c9e
LR		 8407static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8408 .name = "regulatory",
8409};
55682965
JB		 8410
8411/* notification functions */
8412
8413void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8414{
8415 struct sk_buff *msg;
8416
fd2120ca 8417 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 8418 if (!msg)
8419 return;
8420
8421 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
8422 nlmsg_free(msg);
8423 return;
8424 }
8425
463d0183
JB		 8426 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8427 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 8428}
8429
362a415d
JB		 8430static int nl80211_add_scan_req(struct sk_buff *msg,
8431 struct cfg80211_registered_device *rdev)
8432{
8433 struct cfg80211_scan_request *req = rdev->scan_req;
8434 struct nlattr *nest;
8435 int i;
8436
667503dd
JB		 8437 ASSERT_RDEV_LOCK(rdev);
8438
362a415d
JB		 8439 if (WARN_ON(!req))
8440 return 0;
8441
8442 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8443 if (!nest)
8444 goto nla_put_failure;
9360ffd1
DM		 8445 for (i = 0; i < req->n_ssids; i++) {
8446 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8447 goto nla_put_failure;
8448 }
362a415d
JB		 8449 nla_nest_end(msg, nest);
8450
8451 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8452 if (!nest)
8453 goto nla_put_failure;
9360ffd1
DM		 8454 for (i = 0; i < req->n_channels; i++) {
8455 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8456 goto nla_put_failure;
8457 }
362a415d
JB		 8458 nla_nest_end(msg, nest);
8459
9360ffd1
DM		 8460 if (req->ie &&
8461 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8462 goto nla_put_failure;
362a415d 8463
ed473771
SL		 8464 if (req->flags)
8465 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8466
362a415d
JB		 8467 return 0;
8468 nla_put_failure:
8469 return -ENOBUFS;
8470}
8471
a538e2d5
JB		 8472static int nl80211_send_scan_msg(struct sk_buff *msg,
8473 struct cfg80211_registered_device *rdev,
fd014284 8474 struct wireless_dev *wdev,
15e47304 8475 u32 portid, u32 seq, int flags,
a538e2d5 8476 u32 cmd)
2a519311
JB		 8477{
8478 void *hdr;
8479
15e47304 8480 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 8481 if (!hdr)
8482 return -1;
8483
9360ffd1 8484 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 8485 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8486 wdev->netdev->ifindex)) ||
8487 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 8488 goto nla_put_failure;
2a519311 8489
362a415d
JB		 8490 /* ignore errors and send incomplete event anyway */
8491 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 8492
8493 return genlmsg_end(msg, hdr);
8494
8495 nla_put_failure:
8496 genlmsg_cancel(msg, hdr);
8497 return -EMSGSIZE;
8498}
8499
807f8a8c
LC		 8500static int
8501nl80211_send_sched_scan_msg(struct sk_buff *msg,
8502 struct cfg80211_registered_device *rdev,
8503 struct net_device *netdev,
15e47304 8504 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 8505{
8506 void *hdr;
8507
15e47304 8508 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 8509 if (!hdr)
8510 return -1;
8511
9360ffd1
DM		 8512 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8513 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8514 goto nla_put_failure;
807f8a8c
LC		 8515
8516 return genlmsg_end(msg, hdr);
8517
8518 nla_put_failure:
8519 genlmsg_cancel(msg, hdr);
8520 return -EMSGSIZE;
8521}
8522
a538e2d5 8523void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 8524 struct wireless_dev *wdev)
a538e2d5
JB		 8525{
8526 struct sk_buff *msg;
8527
58050fce 8528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 8529 if (!msg)
8530 return;
8531
fd014284 8532 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 8533 NL80211_CMD_TRIGGER_SCAN) < 0) {
8534 nlmsg_free(msg);
8535 return;
8536 }
8537
463d0183
JB		 8538 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8539 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 8540}
8541
2a519311 8542void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 8543 struct wireless_dev *wdev)
2a519311
JB		 8544{
8545 struct sk_buff *msg;
8546
fd2120ca 8547 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8548 if (!msg)
8549 return;
8550
fd014284 8551 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8552 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 8553 nlmsg_free(msg);
8554 return;
8555 }
8556
463d0183
JB		 8557 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8558 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8559}
8560
8561void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 8562 struct wireless_dev *wdev)
2a519311
JB		 8563{
8564 struct sk_buff *msg;
8565
fd2120ca 8566 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8567 if (!msg)
8568 return;
8569
fd014284 8570 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8571 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 8572 nlmsg_free(msg);
8573 return;
8574 }
8575
463d0183
JB		 8576 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8577 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8578}
8579
807f8a8c
LC		 8580void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8581 struct net_device *netdev)
8582{
8583 struct sk_buff *msg;
8584
8585 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8586 if (!msg)
8587 return;
8588
8589 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8590 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8591 nlmsg_free(msg);
8592 return;
8593 }
8594
8595 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8596 nl80211_scan_mcgrp.id, GFP_KERNEL);
8597}
8598
8599void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8600 struct net_device *netdev, u32 cmd)
8601{
8602 struct sk_buff *msg;
8603
58050fce 8604 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 8605 if (!msg)
8606 return;
8607
8608 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8609 nlmsg_free(msg);
8610 return;
8611 }
8612
8613 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8614 nl80211_scan_mcgrp.id, GFP_KERNEL);
8615}
8616
73d54c9e
LR		 8617/*
8618 * This can happen on global regulatory changes or device specific settings
8619 * based on custom world regulatory domains.
8620 */
8621void nl80211_send_reg_change_event(struct regulatory_request *request)
8622{
8623 struct sk_buff *msg;
8624 void *hdr;
8625
fd2120ca 8626 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 8627 if (!msg)
8628 return;
8629
8630 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8631 if (!hdr) {
8632 nlmsg_free(msg);
8633 return;
8634 }
8635
8636 /* Userspace can always count this one always being set */
9360ffd1
DM		 8637 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8638 goto nla_put_failure;
8639
8640 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8641 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8642 NL80211_REGDOM_TYPE_WORLD))
8643 goto nla_put_failure;
8644 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8645 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8646 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8647 goto nla_put_failure;
8648 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8649 request->intersect) {
8650 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8651 NL80211_REGDOM_TYPE_INTERSECTION))
8652 goto nla_put_failure;
8653 } else {
8654 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8655 NL80211_REGDOM_TYPE_COUNTRY) ||
8656 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8657 request->alpha2))
8658 goto nla_put_failure;
8659 }
8660
f4173766 8661 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 8662 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8663 goto nla_put_failure;
73d54c9e 8664
3b7b72ee 8665 genlmsg_end(msg, hdr);
73d54c9e 8666
bc43b28c 8667 rcu_read_lock();
463d0183 8668 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 8669 GFP_ATOMIC);
8670 rcu_read_unlock();
73d54c9e
LR		 8671
8672 return;
8673
8674nla_put_failure:
8675 genlmsg_cancel(msg, hdr);
8676 nlmsg_free(msg);
8677}
8678
6039f6d2
JM		 8679static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8680 struct net_device *netdev,
8681 const u8 *buf, size_t len,
e6d6e342 8682 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 8683{
8684 struct sk_buff *msg;
8685 void *hdr;
8686
e6d6e342 8687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 8688 if (!msg)
8689 return;
8690
8691 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8692 if (!hdr) {
8693 nlmsg_free(msg);
8694 return;
8695 }
8696
9360ffd1
DM		 8697 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8698 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8699 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8700 goto nla_put_failure;
6039f6d2 8701
3b7b72ee 8702 genlmsg_end(msg, hdr);
6039f6d2 8703
463d0183
JB		 8704 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8705 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 8706 return;
8707
8708 nla_put_failure:
8709 genlmsg_cancel(msg, hdr);
8710 nlmsg_free(msg);
8711}
8712
8713void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8714 struct net_device *netdev, const u8 *buf,
8715 size_t len, gfp_t gfp)
6039f6d2
JM		 8716{
8717 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8718 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 8719}
8720
8721void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8722 struct net_device *netdev, const u8 *buf,
e6d6e342 8723 size_t len, gfp_t gfp)
6039f6d2 8724{
e6d6e342
JB		 8725 nl80211_send_mlme_event(rdev, netdev, buf, len,
8726 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 8727}
8728
53b46b84 8729void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8730 struct net_device *netdev, const u8 *buf,
8731 size_t len, gfp_t gfp)
6039f6d2
JM		 8732{
8733 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8734 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 8735}
8736
53b46b84
JM		 8737void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8738 struct net_device *netdev, const u8 *buf,
e6d6e342 8739 size_t len, gfp_t gfp)
6039f6d2
JM		 8740{
8741 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8742 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 8743}
8744
cf4e594e
JM		 8745void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8746 struct net_device *netdev, const u8 *buf,
8747 size_t len, gfp_t gfp)
8748{
8749 nl80211_send_mlme_event(rdev, netdev, buf, len,
8750 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8751}
8752
8753void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8754 struct net_device *netdev, const u8 *buf,
8755 size_t len, gfp_t gfp)
8756{
8757 nl80211_send_mlme_event(rdev, netdev, buf, len,
8758 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8759}
8760
1b06bb40
LR		 8761static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8762 struct net_device *netdev, int cmd,
e6d6e342 8763 const u8 *addr, gfp_t gfp)
1965c853
JM		 8764{
8765 struct sk_buff *msg;
8766 void *hdr;
8767
e6d6e342 8768 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 8769 if (!msg)
8770 return;
8771
8772 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8773 if (!hdr) {
8774 nlmsg_free(msg);
8775 return;
8776 }
8777
9360ffd1
DM		 8778 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8779 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8780 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8781 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8782 goto nla_put_failure;
1965c853 8783
3b7b72ee 8784 genlmsg_end(msg, hdr);
1965c853 8785
463d0183
JB		 8786 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8787 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8788 return;
8789
8790 nla_put_failure:
8791 genlmsg_cancel(msg, hdr);
8792 nlmsg_free(msg);
8793}
8794
8795void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8796 struct net_device *netdev, const u8 *addr,
8797 gfp_t gfp)
1965c853
JM		 8798{
8799 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8800 addr, gfp);
1965c853
JM		 8801}
8802
8803void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8804 struct net_device *netdev, const u8 *addr,
8805 gfp_t gfp)
1965c853 8806{
e6d6e342
JB		 8807 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8808 addr, gfp);
1965c853
JM		 8809}
8810
b23aa676
SO		 8811void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8812 struct net_device *netdev, const u8 *bssid,
8813 const u8 *req_ie, size_t req_ie_len,
8814 const u8 *resp_ie, size_t resp_ie_len,
8815 u16 status, gfp_t gfp)
8816{
8817 struct sk_buff *msg;
8818 void *hdr;
8819
58050fce 8820 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8821 if (!msg)
8822 return;
8823
8824 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8825 if (!hdr) {
8826 nlmsg_free(msg);
8827 return;
8828 }
8829
9360ffd1
DM		 8830 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8831 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8832 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8833 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8834 (req_ie &&
8835 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8836 (resp_ie &&
8837 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8838 goto nla_put_failure;
b23aa676 8839
3b7b72ee 8840 genlmsg_end(msg, hdr);
b23aa676 8841
463d0183
JB		 8842 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8843 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8844 return;
8845
8846 nla_put_failure:
8847 genlmsg_cancel(msg, hdr);
8848 nlmsg_free(msg);
8849
8850}
8851
8852void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8853 struct net_device *netdev, const u8 *bssid,
8854 const u8 *req_ie, size_t req_ie_len,
8855 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8856{
8857 struct sk_buff *msg;
8858 void *hdr;
8859
58050fce 8860 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8861 if (!msg)
8862 return;
8863
8864 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8865 if (!hdr) {
8866 nlmsg_free(msg);
8867 return;
8868 }
8869
9360ffd1
DM		 8870 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8871 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8872 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8873 (req_ie &&
8874 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8875 (resp_ie &&
8876 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8877 goto nla_put_failure;
b23aa676 8878
3b7b72ee 8879 genlmsg_end(msg, hdr);
b23aa676 8880
463d0183
JB		 8881 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8882 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8883 return;
8884
8885 nla_put_failure:
8886 genlmsg_cancel(msg, hdr);
8887 nlmsg_free(msg);
8888
8889}
8890
8891void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8892 struct net_device *netdev, u16 reason,
667503dd 8893 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8894{
8895 struct sk_buff *msg;
8896 void *hdr;
8897
58050fce 8898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8899 if (!msg)
8900 return;
8901
8902 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8903 if (!hdr) {
8904 nlmsg_free(msg);
8905 return;
8906 }
8907
9360ffd1
DM		 8908 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8909 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8910 (from_ap && reason &&
8911 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8912 (from_ap &&
8913 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8914 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8915 goto nla_put_failure;
b23aa676 8916
3b7b72ee 8917 genlmsg_end(msg, hdr);
b23aa676 8918
463d0183
JB		 8919 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8920 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8921 return;
8922
8923 nla_put_failure:
8924 genlmsg_cancel(msg, hdr);
8925 nlmsg_free(msg);
8926
8927}
8928
04a773ad
JB		 8929void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8930 struct net_device *netdev, const u8 *bssid,
8931 gfp_t gfp)
8932{
8933 struct sk_buff *msg;
8934 void *hdr;
8935
fd2120ca 8936 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 8937 if (!msg)
8938 return;
8939
8940 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8941 if (!hdr) {
8942 nlmsg_free(msg);
8943 return;
8944 }
8945
9360ffd1
DM		 8946 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8947 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8948 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8949 goto nla_put_failure;
04a773ad 8950
3b7b72ee 8951 genlmsg_end(msg, hdr);
04a773ad 8952
463d0183
JB		 8953 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8954 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 8955 return;
8956
8957 nla_put_failure:
8958 genlmsg_cancel(msg, hdr);
8959 nlmsg_free(msg);
8960}
8961
c93b5e71
JC		 8962void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8963 struct net_device *netdev,
8964 const u8 *macaddr, const u8* ie, u8 ie_len,
8965 gfp_t gfp)
8966{
8967 struct sk_buff *msg;
8968 void *hdr;
8969
8970 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8971 if (!msg)
8972 return;
8973
8974 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8975 if (!hdr) {
8976 nlmsg_free(msg);
8977 return;
8978 }
8979
9360ffd1
DM		 8980 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8981 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8982 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8983 (ie_len && ie &&
8984 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8985 goto nla_put_failure;
c93b5e71 8986
3b7b72ee 8987 genlmsg_end(msg, hdr);
c93b5e71
JC		 8988
8989 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8990 nl80211_mlme_mcgrp.id, gfp);
8991 return;
8992
8993 nla_put_failure:
8994 genlmsg_cancel(msg, hdr);
8995 nlmsg_free(msg);
8996}
8997
a3b8b056
JM		 8998void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8999 struct net_device *netdev, const u8 *addr,
9000 enum nl80211_key_type key_type, int key_id,
e6d6e342 9001 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9002{
9003 struct sk_buff *msg;
9004 void *hdr;
9005
e6d6e342 9006 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9007 if (!msg)
9008 return;
9009
9010 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9011 if (!hdr) {
9012 nlmsg_free(msg);
9013 return;
9014 }
9015
9360ffd1
DM		 9016 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9017 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9018 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9019 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9020 (key_id != -1 &&
9021 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9022 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9023 goto nla_put_failure;
a3b8b056 9024
3b7b72ee 9025 genlmsg_end(msg, hdr);
a3b8b056 9026
463d0183
JB		 9027 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9028 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9029 return;
9030
9031 nla_put_failure:
9032 genlmsg_cancel(msg, hdr);
9033 nlmsg_free(msg);
9034}
9035
6bad8766
LR		 9036void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9037 struct ieee80211_channel *channel_before,
9038 struct ieee80211_channel *channel_after)
9039{
9040 struct sk_buff *msg;
9041 void *hdr;
9042 struct nlattr *nl_freq;
9043
fd2120ca 9044 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9045 if (!msg)
9046 return;
9047
9048 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9049 if (!hdr) {
9050 nlmsg_free(msg);
9051 return;
9052 }
9053
9054 /*
9055 * Since we are applying the beacon hint to a wiphy we know its
9056 * wiphy_idx is valid
9057 */
9360ffd1
DM		 9058 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9059 goto nla_put_failure;
6bad8766
LR		 9060
9061 /* Before */
9062 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9063 if (!nl_freq)
9064 goto nla_put_failure;
9065 if (nl80211_msg_put_channel(msg, channel_before))
9066 goto nla_put_failure;
9067 nla_nest_end(msg, nl_freq);
9068
9069 /* After */
9070 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9071 if (!nl_freq)
9072 goto nla_put_failure;
9073 if (nl80211_msg_put_channel(msg, channel_after))
9074 goto nla_put_failure;
9075 nla_nest_end(msg, nl_freq);
9076
3b7b72ee 9077 genlmsg_end(msg, hdr);
6bad8766 9078
463d0183
JB		 9079 rcu_read_lock();
9080 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9081 GFP_ATOMIC);
9082 rcu_read_unlock();
6bad8766
LR		 9083
9084 return;
9085
9086nla_put_failure:
9087 genlmsg_cancel(msg, hdr);
9088 nlmsg_free(msg);
9089}
9090
9588bbd5
JM		 9091static void nl80211_send_remain_on_chan_event(
9092 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9093 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9094 struct ieee80211_channel *chan,
9588bbd5
JM		 9095 unsigned int duration, gfp_t gfp)
9096{
9097 struct sk_buff *msg;
9098 void *hdr;
9099
9100 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9101 if (!msg)
9102 return;
9103
9104 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9105 if (!hdr) {
9106 nlmsg_free(msg);
9107 return;
9108 }
9109
9360ffd1 9110 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9111 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9112 wdev->netdev->ifindex)) ||
00f53350 9113 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9114 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9115 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9116 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9117 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9118 goto nla_put_failure;
9588bbd5 9119
9360ffd1
DM		 9120 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9121 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9122 goto nla_put_failure;
9588bbd5 9123
3b7b72ee 9124 genlmsg_end(msg, hdr);
9588bbd5
JM		 9125
9126 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9127 nl80211_mlme_mcgrp.id, gfp);
9128 return;
9129
9130 nla_put_failure:
9131 genlmsg_cancel(msg, hdr);
9132 nlmsg_free(msg);
9133}
9134
9135void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 9136 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9137 struct ieee80211_channel *chan,
9588bbd5
JM		 9138 unsigned int duration, gfp_t gfp)
9139{
9140 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9141 rdev, wdev, cookie, chan,
42d97a59 9142 duration, gfp);
9588bbd5
JM		 9143}
9144
9145void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 9146 struct cfg80211_registered_device *rdev,
9147 struct wireless_dev *wdev,
42d97a59 9148 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9588bbd5
JM		 9149{
9150 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9151 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5
JM		 9152}
9153
98b62183
JB		 9154void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
9155 struct net_device *dev, const u8 *mac_addr,
9156 struct station_info *sinfo, gfp_t gfp)
9157{
9158 struct sk_buff *msg;
9159
58050fce 9160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9161 if (!msg)
9162 return;
9163
66266b3a
JL		 9164 if (nl80211_send_station(msg, 0, 0, 0,
9165 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9166 nlmsg_free(msg);
9167 return;
9168 }
9169
9170 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9171 nl80211_mlme_mcgrp.id, gfp);
9172}
9173
ec15e68b
JM		 9174void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
9175 struct net_device *dev, const u8 *mac_addr,
9176 gfp_t gfp)
9177{
9178 struct sk_buff *msg;
9179 void *hdr;
9180
58050fce 9181 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9182 if (!msg)
9183 return;
9184
9185 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9186 if (!hdr) {
9187 nlmsg_free(msg);
9188 return;
9189 }
9190
9360ffd1
DM		 9191 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9192 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9193 goto nla_put_failure;
ec15e68b 9194
3b7b72ee 9195 genlmsg_end(msg, hdr);
ec15e68b
JM		 9196
9197 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9198 nl80211_mlme_mcgrp.id, gfp);
9199 return;
9200
9201 nla_put_failure:
9202 genlmsg_cancel(msg, hdr);
9203 nlmsg_free(msg);
9204}
9205
ed44a951
PP		 9206void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
9207 struct net_device *dev, const u8 *mac_addr,
9208 enum nl80211_connect_failed_reason reason,
9209 gfp_t gfp)
9210{
9211 struct sk_buff *msg;
9212 void *hdr;
9213
9214 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9215 if (!msg)
9216 return;
9217
9218 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9219 if (!hdr) {
9220 nlmsg_free(msg);
9221 return;
9222 }
9223
9224 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9225 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9226 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9227 goto nla_put_failure;
9228
9229 genlmsg_end(msg, hdr);
9230
9231 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9232 nl80211_mlme_mcgrp.id, gfp);
9233 return;
9234
9235 nla_put_failure:
9236 genlmsg_cancel(msg, hdr);
9237 nlmsg_free(msg);
9238}
9239
b92ab5d8
JB		 9240static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9241 const u8 *addr, gfp_t gfp)
28946da7
JB		 9242{
9243 struct wireless_dev *wdev = dev->ieee80211_ptr;
9244 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9245 struct sk_buff *msg;
9246 void *hdr;
9247 int err;
15e47304 9248 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9249
15e47304 9250 if (!nlportid)
28946da7
JB		 9251 return false;
9252
9253 msg = nlmsg_new(100, gfp);
9254 if (!msg)
9255 return true;
9256
b92ab5d8 9257 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9258 if (!hdr) {
9259 nlmsg_free(msg);
9260 return true;
9261 }
9262
9360ffd1
DM		 9263 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9264 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9265 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9266 goto nla_put_failure;
28946da7
JB		 9267
9268 err = genlmsg_end(msg, hdr);
9269 if (err < 0) {
9270 nlmsg_free(msg);
9271 return true;
9272 }
9273
15e47304 9274 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9275 return true;
9276
9277 nla_put_failure:
9278 genlmsg_cancel(msg, hdr);
9279 nlmsg_free(msg);
9280 return true;
9281}
9282
b92ab5d8
JB		 9283bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
9284{
9285 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9286 addr, gfp);
9287}
9288
9289bool nl80211_unexpected_4addr_frame(struct net_device *dev,
9290 const u8 *addr, gfp_t gfp)
9291{
9292 return __nl80211_unexpected_frame(dev,
9293 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9294 addr, gfp);
9295}
9296
2e161f78 9297int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9298 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9299 int freq, int sig_dbm,
9300 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9301{
71bbc994 9302 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9303 struct sk_buff *msg;
9304 void *hdr;
026331c4
JM		 9305
9306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9307 if (!msg)
9308 return -ENOMEM;
9309
2e161f78 9310 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9311 if (!hdr) {
9312 nlmsg_free(msg);
9313 return -ENOMEM;
9314 }
9315
9360ffd1 9316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9317 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9318 netdev->ifindex)) ||
9360ffd1
DM		 9319 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9320 (sig_dbm &&
9321 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9322 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9323 goto nla_put_failure;
026331c4 9324
3b7b72ee 9325 genlmsg_end(msg, hdr);
026331c4 9326
15e47304 9327 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9328
9329 nla_put_failure:
9330 genlmsg_cancel(msg, hdr);
9331 nlmsg_free(msg);
9332 return -ENOBUFS;
9333}
9334
2e161f78 9335void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 9336 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 9337 const u8 *buf, size_t len, bool ack,
9338 gfp_t gfp)
026331c4 9339{
71bbc994 9340 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9341 struct sk_buff *msg;
9342 void *hdr;
9343
9344 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9345 if (!msg)
9346 return;
9347
2e161f78 9348 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 9349 if (!hdr) {
9350 nlmsg_free(msg);
9351 return;
9352 }
9353
9360ffd1 9354 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9355 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9356 netdev->ifindex)) ||
9360ffd1
DM		 9357 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9358 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9359 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9360 goto nla_put_failure;
026331c4 9361
3b7b72ee 9362 genlmsg_end(msg, hdr);
026331c4
JM		 9363
9364 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9365 return;
9366
9367 nla_put_failure:
9368 genlmsg_cancel(msg, hdr);
9369 nlmsg_free(msg);
9370}
9371
d6dc1a38
JO		 9372void
9373nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
9374 struct net_device *netdev,
9375 enum nl80211_cqm_rssi_threshold_event rssi_event,
9376 gfp_t gfp)
9377{
9378 struct sk_buff *msg;
9379 struct nlattr *pinfoattr;
9380 void *hdr;
9381
58050fce 9382 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 9383 if (!msg)
9384 return;
9385
9386 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9387 if (!hdr) {
9388 nlmsg_free(msg);
9389 return;
9390 }
9391
9360ffd1
DM		 9392 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9393 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9394 goto nla_put_failure;
d6dc1a38
JO		 9395
9396 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9397 if (!pinfoattr)
9398 goto nla_put_failure;
9399
9360ffd1
DM		 9400 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9401 rssi_event))
9402 goto nla_put_failure;
d6dc1a38
JO		 9403
9404 nla_nest_end(msg, pinfoattr);
9405
3b7b72ee 9406 genlmsg_end(msg, hdr);
d6dc1a38
JO		 9407
9408 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9409 nl80211_mlme_mcgrp.id, gfp);
9410 return;
9411
9412 nla_put_failure:
9413 genlmsg_cancel(msg, hdr);
9414 nlmsg_free(msg);
9415}
9416
e5497d76
JB		 9417void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9418 struct net_device *netdev, const u8 *bssid,
9419 const u8 *replay_ctr, gfp_t gfp)
9420{
9421 struct sk_buff *msg;
9422 struct nlattr *rekey_attr;
9423 void *hdr;
9424
58050fce 9425 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 9426 if (!msg)
9427 return;
9428
9429 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9430 if (!hdr) {
9431 nlmsg_free(msg);
9432 return;
9433 }
9434
9360ffd1
DM		 9435 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9436 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9437 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9438 goto nla_put_failure;
e5497d76
JB		 9439
9440 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9441 if (!rekey_attr)
9442 goto nla_put_failure;
9443
9360ffd1
DM		 9444 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
9445 NL80211_REPLAY_CTR_LEN, replay_ctr))
9446 goto nla_put_failure;
e5497d76
JB		 9447
9448 nla_nest_end(msg, rekey_attr);
9449
3b7b72ee 9450 genlmsg_end(msg, hdr);
e5497d76
JB		 9451
9452 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9453 nl80211_mlme_mcgrp.id, gfp);
9454 return;
9455
9456 nla_put_failure:
9457 genlmsg_cancel(msg, hdr);
9458 nlmsg_free(msg);
9459}
9460
c9df56b4
JM		 9461void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
9462 struct net_device *netdev, int index,
9463 const u8 *bssid, bool preauth, gfp_t gfp)
9464{
9465 struct sk_buff *msg;
9466 struct nlattr *attr;
9467 void *hdr;
9468
58050fce 9469 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 9470 if (!msg)
9471 return;
9472
9473 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
9474 if (!hdr) {
9475 nlmsg_free(msg);
9476 return;
9477 }
9478
9360ffd1
DM		 9479 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9480 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9481 goto nla_put_failure;
c9df56b4
JM		 9482
9483 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
9484 if (!attr)
9485 goto nla_put_failure;
9486
9360ffd1
DM		 9487 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
9488 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
9489 (preauth &&
9490 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
9491 goto nla_put_failure;
c9df56b4
JM		 9492
9493 nla_nest_end(msg, attr);
9494
3b7b72ee 9495 genlmsg_end(msg, hdr);
c9df56b4
JM		 9496
9497 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9498 nl80211_mlme_mcgrp.id, gfp);
9499 return;
9500
9501 nla_put_failure:
9502 genlmsg_cancel(msg, hdr);
9503 nlmsg_free(msg);
9504}
9505
5314526b 9506void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
683b6d3b
JB		 9507 struct net_device *netdev,
9508 struct cfg80211_chan_def *chandef, gfp_t gfp)
5314526b
TP		 9509{
9510 struct sk_buff *msg;
9511 void *hdr;
9512
58050fce 9513 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 9514 if (!msg)
9515 return;
9516
9517 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
9518 if (!hdr) {
9519 nlmsg_free(msg);
9520 return;
9521 }
9522
683b6d3b
JB		 9523 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9524 goto nla_put_failure;
9525
9526 if (nl80211_send_chandef(msg, chandef))
7eab0f64 9527 goto nla_put_failure;
5314526b
TP		 9528
9529 genlmsg_end(msg, hdr);
9530
9531 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9532 nl80211_mlme_mcgrp.id, gfp);
9533 return;
9534
9535 nla_put_failure:
9536 genlmsg_cancel(msg, hdr);
9537 nlmsg_free(msg);
9538}
9539
84f10708
TP		 9540void
9541nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9542 struct net_device *netdev, const u8 *peer,
9543 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9544{
9545 struct sk_buff *msg;
9546 struct nlattr *pinfoattr;
9547 void *hdr;
9548
9549 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9550 if (!msg)
9551 return;
9552
9553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9554 if (!hdr) {
9555 nlmsg_free(msg);
9556 return;
9557 }
9558
9559 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9560 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9561 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9562 goto nla_put_failure;
9563
9564 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9565 if (!pinfoattr)
9566 goto nla_put_failure;
9567
9568 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9569 goto nla_put_failure;
9570
9571 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9572 goto nla_put_failure;
9573
9574 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9575 goto nla_put_failure;
9576
9577 nla_nest_end(msg, pinfoattr);
9578
9579 genlmsg_end(msg, hdr);
9580
9581 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9582 nl80211_mlme_mcgrp.id, gfp);
9583 return;
9584
9585 nla_put_failure:
9586 genlmsg_cancel(msg, hdr);
9587 nlmsg_free(msg);
9588}
9589
04f39047
SW		 9590void
9591nl80211_radar_notify(struct cfg80211_registered_device *rdev,
9592 struct cfg80211_chan_def *chandef,
9593 enum nl80211_radar_event event,
9594 struct net_device *netdev, gfp_t gfp)
9595{
9596 struct sk_buff *msg;
9597 void *hdr;
9598
9599 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9600 if (!msg)
9601 return;
9602
9603 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
9604 if (!hdr) {
9605 nlmsg_free(msg);
9606 return;
9607 }
9608
9609 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
9610 goto nla_put_failure;
9611
9612 /* NOP and radar events don't need a netdev parameter */
9613 if (netdev) {
9614 struct wireless_dev *wdev = netdev->ieee80211_ptr;
9615
9616 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9617 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9618 goto nla_put_failure;
9619 }
9620
9621 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
9622 goto nla_put_failure;
9623
9624 if (nl80211_send_chandef(msg, chandef))
9625 goto nla_put_failure;
9626
9627 if (genlmsg_end(msg, hdr) < 0) {
9628 nlmsg_free(msg);
9629 return;
9630 }
9631
9632 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9633 nl80211_mlme_mcgrp.id, gfp);
9634 return;
9635
9636 nla_put_failure:
9637 genlmsg_cancel(msg, hdr);
9638 nlmsg_free(msg);
9639}
9640
c063dbf5
JB		 9641void
9642nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9643 struct net_device *netdev, const u8 *peer,
9644 u32 num_packets, gfp_t gfp)
9645{
9646 struct sk_buff *msg;
9647 struct nlattr *pinfoattr;
9648 void *hdr;
9649
58050fce 9650 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 9651 if (!msg)
9652 return;
9653
9654 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9655 if (!hdr) {
9656 nlmsg_free(msg);
9657 return;
9658 }
9659
9360ffd1
DM		 9660 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9661 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9662 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9663 goto nla_put_failure;
c063dbf5
JB		 9664
9665 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9666 if (!pinfoattr)
9667 goto nla_put_failure;
9668
9360ffd1
DM		 9669 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9670 goto nla_put_failure;
c063dbf5
JB		 9671
9672 nla_nest_end(msg, pinfoattr);
9673
3b7b72ee 9674 genlmsg_end(msg, hdr);
c063dbf5
JB		 9675
9676 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9677 nl80211_mlme_mcgrp.id, gfp);
9678 return;
9679
9680 nla_put_failure:
9681 genlmsg_cancel(msg, hdr);
9682 nlmsg_free(msg);
9683}
9684
7f6cf311
JB		 9685void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9686 u64 cookie, bool acked, gfp_t gfp)
9687{
9688 struct wireless_dev *wdev = dev->ieee80211_ptr;
9689 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9690 struct sk_buff *msg;
9691 void *hdr;
9692 int err;
9693
4ee3e063
BL		 9694 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9695
58050fce 9696 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 9697
7f6cf311
JB		 9698 if (!msg)
9699 return;
9700
9701 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9702 if (!hdr) {
9703 nlmsg_free(msg);
9704 return;
9705 }
9706
9360ffd1
DM		 9707 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9708 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9709 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9710 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9711 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9712 goto nla_put_failure;
7f6cf311
JB		 9713
9714 err = genlmsg_end(msg, hdr);
9715 if (err < 0) {
9716 nlmsg_free(msg);
9717 return;
9718 }
9719
9720 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9721 nl80211_mlme_mcgrp.id, gfp);
9722 return;
9723
9724 nla_put_failure:
9725 genlmsg_cancel(msg, hdr);
9726 nlmsg_free(msg);
9727}
9728EXPORT_SYMBOL(cfg80211_probe_status);
9729
5e760230
JB		 9730void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9731 const u8 *frame, size_t len,
37c73b5f 9732 int freq, int sig_dbm)
5e760230
JB		 9733{
9734 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9735 struct sk_buff *msg;
9736 void *hdr;
37c73b5f 9737 struct cfg80211_beacon_registration *reg;
5e760230 9738
4ee3e063
BL		 9739 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9740
37c73b5f
BG		 9741 spin_lock_bh(&rdev->beacon_registrations_lock);
9742 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9743 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9744 if (!msg) {
9745 spin_unlock_bh(&rdev->beacon_registrations_lock);
9746 return;
9747 }
5e760230 9748
37c73b5f
BG		 9749 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9750 if (!hdr)
9751 goto nla_put_failure;
5e760230 9752
37c73b5f
BG		 9753 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9754 (freq &&
9755 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9756 (sig_dbm &&
9757 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9758 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9759 goto nla_put_failure;
5e760230 9760
37c73b5f 9761 genlmsg_end(msg, hdr);
5e760230 9762
37c73b5f
BG		 9763 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9764 }
9765 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9766 return;
9767
9768 nla_put_failure:
37c73b5f
BG		 9769 spin_unlock_bh(&rdev->beacon_registrations_lock);
9770 if (hdr)
9771 genlmsg_cancel(msg, hdr);
5e760230
JB		 9772 nlmsg_free(msg);
9773}
9774EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9775
cd8f7cb4
JB		 9776#ifdef CONFIG_PM
9777void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
9778 struct cfg80211_wowlan_wakeup *wakeup,
9779 gfp_t gfp)
9780{
9781 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9782 struct sk_buff *msg;
9783 void *hdr;
9784 int err, size = 200;
9785
9786 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
9787
9788 if (wakeup)
9789 size += wakeup->packet_present_len;
9790
9791 msg = nlmsg_new(size, gfp);
9792 if (!msg)
9793 return;
9794
9795 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
9796 if (!hdr)
9797 goto free_msg;
9798
9799 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9800 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9801 goto free_msg;
9802
9803 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9804 wdev->netdev->ifindex))
9805 goto free_msg;
9806
9807 if (wakeup) {
9808 struct nlattr *reasons;
9809
9810 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9811
9812 if (wakeup->disconnect &&
9813 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
9814 goto free_msg;
9815 if (wakeup->magic_pkt &&
9816 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
9817 goto free_msg;
9818 if (wakeup->gtk_rekey_failure &&
9819 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
9820 goto free_msg;
9821 if (wakeup->eap_identity_req &&
9822 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
9823 goto free_msg;
9824 if (wakeup->four_way_handshake &&
9825 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
9826 goto free_msg;
9827 if (wakeup->rfkill_release &&
9828 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
9829 goto free_msg;
9830
9831 if (wakeup->pattern_idx >= 0 &&
9832 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
9833 wakeup->pattern_idx))
9834 goto free_msg;
9835
2a0e047e
JB		 9836 if (wakeup->tcp_match)
9837 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
9838
9839 if (wakeup->tcp_connlost)
9840 nla_put_flag(msg,
9841 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
9842
9843 if (wakeup->tcp_nomoretokens)
9844 nla_put_flag(msg,
9845 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
9846
cd8f7cb4
JB		 9847 if (wakeup->packet) {
9848 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
9849 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
9850
9851 if (!wakeup->packet_80211) {
9852 pkt_attr =
9853 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
9854 len_attr =
9855 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
9856 }
9857
9858 if (wakeup->packet_len &&
9859 nla_put_u32(msg, len_attr, wakeup->packet_len))
9860 goto free_msg;
9861
9862 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
9863 wakeup->packet))
9864 goto free_msg;
9865 }
9866
9867 nla_nest_end(msg, reasons);
9868 }
9869
9870 err = genlmsg_end(msg, hdr);
9871 if (err < 0)
9872 goto free_msg;
9873
9874 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9875 nl80211_mlme_mcgrp.id, gfp);
9876 return;
9877
9878 free_msg:
9879 nlmsg_free(msg);
9880}
9881EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
9882#endif
9883
3475b094
JM		 9884void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9885 enum nl80211_tdls_operation oper,
9886 u16 reason_code, gfp_t gfp)
9887{
9888 struct wireless_dev *wdev = dev->ieee80211_ptr;
9889 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9890 struct sk_buff *msg;
9891 void *hdr;
9892 int err;
9893
9894 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9895 reason_code);
9896
9897 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9898 if (!msg)
9899 return;
9900
9901 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9902 if (!hdr) {
9903 nlmsg_free(msg);
9904 return;
9905 }
9906
9907 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9908 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9909 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9910 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9911 (reason_code > 0 &&
9912 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9913 goto nla_put_failure;
9914
9915 err = genlmsg_end(msg, hdr);
9916 if (err < 0) {
9917 nlmsg_free(msg);
9918 return;
9919 }
9920
9921 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9922 nl80211_mlme_mcgrp.id, gfp);
9923 return;
9924
9925 nla_put_failure:
9926 genlmsg_cancel(msg, hdr);
9927 nlmsg_free(msg);
9928}
9929EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9930
026331c4
JM		 9931static int nl80211_netlink_notify(struct notifier_block * nb,
9932 unsigned long state,
9933 void *_notify)
9934{
9935 struct netlink_notify *notify = _notify;
9936 struct cfg80211_registered_device *rdev;
9937 struct wireless_dev *wdev;
37c73b5f 9938 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 9939
9940 if (state != NETLINK_URELEASE)
9941 return NOTIFY_DONE;
9942
9943 rcu_read_lock();
9944
5e760230 9945 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 9946 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 9947 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 9948
9949 spin_lock_bh(&rdev->beacon_registrations_lock);
9950 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9951 list) {
9952 if (reg->nlportid == notify->portid) {
9953 list_del(&reg->list);
9954 kfree(reg);
9955 break;
9956 }
9957 }
9958 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 9959 }
026331c4
JM		 9960
9961 rcu_read_unlock();
9962
9963 return NOTIFY_DONE;
9964}
9965
9966static struct notifier_block nl80211_netlink_notifier = {
9967 .notifier_call = nl80211_netlink_notify,
9968};
9969
55682965
JB		 9970/* initialisation/exit functions */
9971
9972int nl80211_init(void)
9973{
0d63cbb5 9974 int err;
55682965 9975
0d63cbb5
MM		 9976 err = genl_register_family_with_ops(&nl80211_fam,
9977 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 9978 if (err)
9979 return err;
9980
55682965
JB		 9981 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9982 if (err)
9983 goto err_out;
9984
2a519311
JB		 9985 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9986 if (err)
9987 goto err_out;
9988
73d54c9e
LR		 9989 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9990 if (err)
9991 goto err_out;
9992
6039f6d2
JM		 9993 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9994 if (err)
9995 goto err_out;
9996
aff89a9b
JB		 9997#ifdef CONFIG_NL80211_TESTMODE
9998 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9999 if (err)
10000 goto err_out;
10001#endif
10002
026331c4
JM		 10003 err = netlink_register_notifier(&nl80211_netlink_notifier);
10004 if (err)
10005 goto err_out;
10006
55682965
JB		 10007 return 0;
10008 err_out:
10009 genl_unregister_family(&nl80211_fam);
10010 return err;
10011}
10012
10013void nl80211_exit(void)
10014{
026331c4 10015 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10016 genl_unregister_family(&nl80211_fam);
10017}
Linux kernel - Deliverables
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