projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
cfg80211: clean up station WME attribute parsing
[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 },
9d62a986
JM		 371 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
372 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
55682965
JB		 373};
374
e31b8213 375/* policy for the key attributes */
b54452b0 376static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 377 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 378 [NL80211_KEY_IDX] = { .type = NLA_U8 },
379 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 380 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 381 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
382 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 383 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 384 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
385};
386
387/* policy for the key default flags */
388static const struct nla_policy
389nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
390 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
391 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 392};
393
ff1b6e69
JB		 394/* policy for WoWLAN attributes */
395static const struct nla_policy
396nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
397 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
398 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
399 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
400 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 401 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
402 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
403 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
404 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
2a0e047e
JB		 405 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
406};
407
408static const struct nla_policy
409nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
410 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
411 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
412 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
413 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
414 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
415 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
416 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
417 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
418 },
419 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
420 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
421 },
422 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
423 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
424 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
ff1b6e69
JB		 425};
426
e5497d76
JB		 427/* policy for GTK rekey offload attributes */
428static const struct nla_policy
429nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
430 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
431 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
432 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
433};
434
a1f1c21c
LC		 435static const struct nla_policy
436nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 437 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 438 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 439 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 440};
441
a043897a
HS		 442/* ifidx get helper */
443static int nl80211_get_ifidx(struct netlink_callback *cb)
444{
445 int res;
446
447 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
448 nl80211_fam.attrbuf, nl80211_fam.maxattr,
449 nl80211_policy);
450 if (res)
451 return res;
452
453 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
454 return -EINVAL;
455
456 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
457 if (!res)
458 return -EINVAL;
459 return res;
460}
461
67748893
JB		 462static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
463 struct netlink_callback *cb,
464 struct cfg80211_registered_device **rdev,
465 struct net_device **dev)
466{
467 int ifidx = cb->args[0];
468 int err;
469
470 if (!ifidx)
471 ifidx = nl80211_get_ifidx(cb);
472 if (ifidx < 0)
473 return ifidx;
474
475 cb->args[0] = ifidx;
476
477 rtnl_lock();
478
479 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
480 if (!*dev) {
481 err = -ENODEV;
482 goto out_rtnl;
483 }
484
485 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 486 if (IS_ERR(*rdev)) {
487 err = PTR_ERR(*rdev);
67748893
JB		 488 goto out_rtnl;
489 }
490
491 return 0;
492 out_rtnl:
493 rtnl_unlock();
494 return err;
495}
496
497static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
498{
499 cfg80211_unlock_rdev(rdev);
500 rtnl_unlock();
501}
502
f4a11bb0
JB		 503/* IE validation */
504static bool is_valid_ie_attr(const struct nlattr *attr)
505{
506 const u8 *pos;
507 int len;
508
509 if (!attr)
510 return true;
511
512 pos = nla_data(attr);
513 len = nla_len(attr);
514
515 while (len) {
516 u8 elemlen;
517
518 if (len < 2)
519 return false;
520 len -= 2;
521
522 elemlen = pos[1];
523 if (elemlen > len)
524 return false;
525
526 len -= elemlen;
527 pos += 2 + elemlen;
528 }
529
530 return true;
531}
532
55682965 533/* message building helper */
15e47304 534static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
55682965
JB		 535 int flags, u8 cmd)
536{
537 /* since there is no private header just add the generic one */
15e47304 538 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
55682965
JB		 539}
540
5dab3b8a
LR		 541static int nl80211_msg_put_channel(struct sk_buff *msg,
542 struct ieee80211_channel *chan)
543{
9360ffd1
DM		 544 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
545 chan->center_freq))
546 goto nla_put_failure;
5dab3b8a 547
9360ffd1
DM		 548 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
549 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
550 goto nla_put_failure;
551 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
552 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
553 goto nla_put_failure;
554 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
555 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
556 goto nla_put_failure;
1c33a059
JB		 557 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
558 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
559 goto nla_put_failure;
5dab3b8a 560
9360ffd1
DM		 561 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
562 DBM_TO_MBM(chan->max_power)))
563 goto nla_put_failure;
5dab3b8a
LR		 564
565 return 0;
566
567 nla_put_failure:
568 return -ENOBUFS;
569}
570
55682965
JB		 571/* netlink command implementations */
572
b9454e83
JB		 573struct key_parse {
574 struct key_params p;
575 int idx;
e31b8213 576 int type;
b9454e83 577 bool def, defmgmt;
dbd2fd65 578 bool def_uni, def_multi;
b9454e83
JB		 579};
580
581static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
582{
583 struct nlattr *tb[NL80211_KEY_MAX + 1];
584 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
585 nl80211_key_policy);
586 if (err)
587 return err;
588
589 k->def = !!tb[NL80211_KEY_DEFAULT];
590 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
591
dbd2fd65
JB		 592 if (k->def) {
593 k->def_uni = true;
594 k->def_multi = true;
595 }
596 if (k->defmgmt)
597 k->def_multi = true;
598
b9454e83
JB		 599 if (tb[NL80211_KEY_IDX])
600 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
601
602 if (tb[NL80211_KEY_DATA]) {
603 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
604 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
605 }
606
607 if (tb[NL80211_KEY_SEQ]) {
608 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
609 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
610 }
611
612 if (tb[NL80211_KEY_CIPHER])
613 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
614
e31b8213
JB		 615 if (tb[NL80211_KEY_TYPE]) {
616 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
617 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
618 return -EINVAL;
619 }
620
dbd2fd65
JB		 621 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
622 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 623 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
624 tb[NL80211_KEY_DEFAULT_TYPES],
625 nl80211_key_default_policy);
dbd2fd65
JB		 626 if (err)
627 return err;
628
629 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
630 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
631 }
632
b9454e83
JB		 633 return 0;
634}
635
636static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
637{
638 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
639 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
640 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
641 }
642
643 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
644 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
645 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
646 }
647
648 if (info->attrs[NL80211_ATTR_KEY_IDX])
649 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
650
651 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
652 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
653
654 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
655 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
656
dbd2fd65
JB		 657 if (k->def) {
658 k->def_uni = true;
659 k->def_multi = true;
660 }
661 if (k->defmgmt)
662 k->def_multi = true;
663
e31b8213
JB		 664 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
665 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
666 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
667 return -EINVAL;
668 }
669
dbd2fd65
JB		 670 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
671 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
672 int err = nla_parse_nested(
673 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
674 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
675 nl80211_key_default_policy);
676 if (err)
677 return err;
678
679 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
680 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
681 }
682
b9454e83
JB		 683 return 0;
684}
685
686static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
687{
688 int err;
689
690 memset(k, 0, sizeof(*k));
691 k->idx = -1;
e31b8213 692 k->type = -1;
b9454e83
JB		 693
694 if (info->attrs[NL80211_ATTR_KEY])
695 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
696 else
697 err = nl80211_parse_key_old(info, k);
698
699 if (err)
700 return err;
701
702 if (k->def && k->defmgmt)
703 return -EINVAL;
704
dbd2fd65
JB		 705 if (k->defmgmt) {
706 if (k->def_uni || !k->def_multi)
707 return -EINVAL;
708 }
709
b9454e83
JB		 710 if (k->idx != -1) {
711 if (k->defmgmt) {
712 if (k->idx < 4 || k->idx > 5)
713 return -EINVAL;
714 } else if (k->def) {
715 if (k->idx < 0 || k->idx > 3)
716 return -EINVAL;
717 } else {
718 if (k->idx < 0 || k->idx > 5)
719 return -EINVAL;
720 }
721 }
722
723 return 0;
724}
725
fffd0934
JB		 726static struct cfg80211_cached_keys *
727nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
de7044ee 728 struct nlattr *keys, bool *no_ht)
fffd0934
JB		 729{
730 struct key_parse parse;
731 struct nlattr *key;
732 struct cfg80211_cached_keys *result;
733 int rem, err, def = 0;
734
735 result = kzalloc(sizeof(*result), GFP_KERNEL);
736 if (!result)
737 return ERR_PTR(-ENOMEM);
738
739 result->def = -1;
740 result->defmgmt = -1;
741
742 nla_for_each_nested(key, keys, rem) {
743 memset(&parse, 0, sizeof(parse));
744 parse.idx = -1;
745
746 err = nl80211_parse_key_new(key, &parse);
747 if (err)
748 goto error;
749 err = -EINVAL;
750 if (!parse.p.key)
751 goto error;
752 if (parse.idx < 0 || parse.idx > 4)
753 goto error;
754 if (parse.def) {
755 if (def)
756 goto error;
757 def = 1;
758 result->def = parse.idx;
dbd2fd65
JB		 759 if (!parse.def_uni || !parse.def_multi)
760 goto error;
fffd0934
JB		 761 } else if (parse.defmgmt)
762 goto error;
763 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 764 parse.idx, false, NULL);
fffd0934
JB		 765 if (err)
766 goto error;
767 result->params[parse.idx].cipher = parse.p.cipher;
768 result->params[parse.idx].key_len = parse.p.key_len;
769 result->params[parse.idx].key = result->data[parse.idx];
770 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
de7044ee
SM		 771
772 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
773 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
774 if (no_ht)
775 *no_ht = true;
776 }
fffd0934
JB		 777 }
778
779 return result;
780 error:
781 kfree(result);
782 return ERR_PTR(err);
783}
784
785static int nl80211_key_allowed(struct wireless_dev *wdev)
786{
787 ASSERT_WDEV_LOCK(wdev);
788
fffd0934
JB		 789 switch (wdev->iftype) {
790 case NL80211_IFTYPE_AP:
791 case NL80211_IFTYPE_AP_VLAN:
074ac8df 792 case NL80211_IFTYPE_P2P_GO:
ff973af7 793 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 794 break;
795 case NL80211_IFTYPE_ADHOC:
796 if (!wdev->current_bss)
797 return -ENOLINK;
798 break;
799 case NL80211_IFTYPE_STATION:
074ac8df 800 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 801 if (wdev->sme_state != CFG80211_SME_CONNECTED)
802 return -ENOLINK;
803 break;
804 default:
805 return -EINVAL;
806 }
807
808 return 0;
809}
810
7527a782
JB		 811static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
812{
813 struct nlattr *nl_modes = nla_nest_start(msg, attr);
814 int i;
815
816 if (!nl_modes)
817 goto nla_put_failure;
818
819 i = 0;
820 while (ifmodes) {
9360ffd1
DM		 821 if ((ifmodes & 1) && nla_put_flag(msg, i))
822 goto nla_put_failure;
7527a782
JB		 823 ifmodes >>= 1;
824 i++;
825 }
826
827 nla_nest_end(msg, nl_modes);
828 return 0;
829
830nla_put_failure:
831 return -ENOBUFS;
832}
833
834static int nl80211_put_iface_combinations(struct wiphy *wiphy,
835 struct sk_buff *msg)
836{
837 struct nlattr *nl_combis;
838 int i, j;
839
840 nl_combis = nla_nest_start(msg,
841 NL80211_ATTR_INTERFACE_COMBINATIONS);
842 if (!nl_combis)
843 goto nla_put_failure;
844
845 for (i = 0; i < wiphy->n_iface_combinations; i++) {
846 const struct ieee80211_iface_combination *c;
847 struct nlattr *nl_combi, *nl_limits;
848
849 c = &wiphy->iface_combinations[i];
850
851 nl_combi = nla_nest_start(msg, i + 1);
852 if (!nl_combi)
853 goto nla_put_failure;
854
855 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
856 if (!nl_limits)
857 goto nla_put_failure;
858
859 for (j = 0; j < c->n_limits; j++) {
860 struct nlattr *nl_limit;
861
862 nl_limit = nla_nest_start(msg, j + 1);
863 if (!nl_limit)
864 goto nla_put_failure;
9360ffd1
DM		 865 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
866 c->limits[j].max))
867 goto nla_put_failure;
7527a782
JB		 868 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
869 c->limits[j].types))
870 goto nla_put_failure;
871 nla_nest_end(msg, nl_limit);
872 }
873
874 nla_nest_end(msg, nl_limits);
875
9360ffd1
DM		 876 if (c->beacon_int_infra_match &&
877 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
878 goto nla_put_failure;
879 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
880 c->num_different_channels) ||
881 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
882 c->max_interfaces))
883 goto nla_put_failure;
7527a782
JB		 884
885 nla_nest_end(msg, nl_combi);
886 }
887
888 nla_nest_end(msg, nl_combis);
889
890 return 0;
891nla_put_failure:
892 return -ENOBUFS;
893}
894
15e47304 895static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
55682965
JB		 896 struct cfg80211_registered_device *dev)
897{
898 void *hdr;
ee688b00
JB		 899 struct nlattr *nl_bands, *nl_band;
900 struct nlattr *nl_freqs, *nl_freq;
901 struct nlattr *nl_rates, *nl_rate;
8fdc621d 902 struct nlattr *nl_cmds;
ee688b00
JB		 903 enum ieee80211_band band;
904 struct ieee80211_channel *chan;
905 struct ieee80211_rate *rate;
906 int i;
2e161f78
JB		 907 const struct ieee80211_txrx_stypes *mgmt_stypes =
908 dev->wiphy.mgmt_stypes;
55682965 909
15e47304 910 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
55682965
JB		 911 if (!hdr)
912 return -1;
913
9360ffd1
DM		 914 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
915 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
916 nla_put_u32(msg, NL80211_ATTR_GENERATION,
917 cfg80211_rdev_list_generation) ||
918 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
919 dev->wiphy.retry_short) ||
920 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
921 dev->wiphy.retry_long) ||
922 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
923 dev->wiphy.frag_threshold) ||
924 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
925 dev->wiphy.rts_threshold) ||
926 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
927 dev->wiphy.coverage_class) ||
928 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
929 dev->wiphy.max_scan_ssids) ||
930 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
931 dev->wiphy.max_sched_scan_ssids) ||
932 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
933 dev->wiphy.max_scan_ie_len) ||
934 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
935 dev->wiphy.max_sched_scan_ie_len) ||
936 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
937 dev->wiphy.max_match_sets))
938 goto nla_put_failure;
939
940 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
941 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
942 goto nla_put_failure;
943 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
944 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
945 goto nla_put_failure;
946 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
947 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
948 goto nla_put_failure;
949 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
950 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
951 goto nla_put_failure;
952 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
953 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
954 goto nla_put_failure;
955 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
956 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
957 goto nla_put_failure;
958
959 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
960 sizeof(u32) * dev->wiphy.n_cipher_suites,
961 dev->wiphy.cipher_suites))
962 goto nla_put_failure;
963
964 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
965 dev->wiphy.max_num_pmkids))
966 goto nla_put_failure;
967
968 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
969 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
970 goto nla_put_failure;
971
972 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
973 dev->wiphy.available_antennas_tx) ||
974 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
975 dev->wiphy.available_antennas_rx))
976 goto nla_put_failure;
977
978 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
979 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
980 dev->wiphy.probe_resp_offload))
981 goto nla_put_failure;
87bbbe22 982
7f531e03
BR		 983 if ((dev->wiphy.available_antennas_tx ||
984 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 985 u32 tx_ant = 0, rx_ant = 0;
986 int res;
e35e4d28 987 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
afe0cbf8 988 if (!res) {
9360ffd1
DM		 989 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
990 tx_ant) ||
991 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
992 rx_ant))
993 goto nla_put_failure;
afe0cbf8
BR		 994 }
995 }
996
7527a782
JB		 997 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
998 dev->wiphy.interface_modes))
f59ac048
LR		 999 goto nla_put_failure;
1000
ee688b00
JB		 1001 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1002 if (!nl_bands)
1003 goto nla_put_failure;
1004
1005 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1006 if (!dev->wiphy.bands[band])
1007 continue;
1008
1009 nl_band = nla_nest_start(msg, band);
1010 if (!nl_band)
1011 goto nla_put_failure;
1012
d51626df 1013 /* add HT info */
9360ffd1
DM		 1014 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
1015 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1016 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
1017 &dev->wiphy.bands[band]->ht_cap.mcs) ||
1018 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1019 dev->wiphy.bands[band]->ht_cap.cap) ||
1020 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1021 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
1022 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1023 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
1024 goto nla_put_failure;
d51626df 1025
bf0c111e
MP		 1026 /* add VHT info */
1027 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1028 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1029 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1030 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1031 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1032 dev->wiphy.bands[band]->vht_cap.cap)))
1033 goto nla_put_failure;
1034
ee688b00
JB		 1035 /* add frequencies */
1036 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1037 if (!nl_freqs)
1038 goto nla_put_failure;
1039
1040 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1041 nl_freq = nla_nest_start(msg, i);
1042 if (!nl_freq)
1043 goto nla_put_failure;
1044
1045 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 1046
1047 if (nl80211_msg_put_channel(msg, chan))
1048 goto nla_put_failure;
e2f367f2 1049
ee688b00
JB		 1050 nla_nest_end(msg, nl_freq);
1051 }
1052
1053 nla_nest_end(msg, nl_freqs);
1054
1055 /* add bitrates */
1056 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1057 if (!nl_rates)
1058 goto nla_put_failure;
1059
1060 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1061 nl_rate = nla_nest_start(msg, i);
1062 if (!nl_rate)
1063 goto nla_put_failure;
1064
1065 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 1066 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1067 rate->bitrate))
1068 goto nla_put_failure;
1069 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1070 nla_put_flag(msg,
1071 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1072 goto nla_put_failure;
ee688b00
JB		 1073
1074 nla_nest_end(msg, nl_rate);
1075 }
1076
1077 nla_nest_end(msg, nl_rates);
1078
1079 nla_nest_end(msg, nl_band);
1080 }
1081 nla_nest_end(msg, nl_bands);
1082
8fdc621d
JB		 1083 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1084 if (!nl_cmds)
1085 goto nla_put_failure;
1086
1087 i = 0;
1088#define CMD(op, n) \
1089 do { \
1090 if (dev->ops->op) { \
1091 i++; \
9360ffd1
DM		 1092 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1093 goto nla_put_failure; \
8fdc621d
JB		 1094 } \
1095 } while (0)
1096
1097 CMD(add_virtual_intf, NEW_INTERFACE);
1098 CMD(change_virtual_intf, SET_INTERFACE);
1099 CMD(add_key, NEW_KEY);
8860020e 1100 CMD(start_ap, START_AP);
8fdc621d
JB		 1101 CMD(add_station, NEW_STATION);
1102 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1103 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1104 CMD(change_bss, SET_BSS);
636a5d36
JM		 1105 CMD(auth, AUTHENTICATE);
1106 CMD(assoc, ASSOCIATE);
1107 CMD(deauth, DEAUTHENTICATE);
1108 CMD(disassoc, DISASSOCIATE);
04a773ad 1109 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1110 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1111 CMD(set_pmksa, SET_PMKSA);
1112 CMD(del_pmksa, DEL_PMKSA);
1113 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1114 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1115 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1116 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1117 CMD(mgmt_tx, FRAME);
f7ca38df 1118 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1119 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1120 i++;
9360ffd1
DM		 1121 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1122 goto nla_put_failure;
463d0183 1123 }
e8c9bd5b 1124 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1125 dev->ops->join_mesh) {
aa430da4
JB		 1126 i++;
1127 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1128 goto nla_put_failure;
1129 }
e8347eba 1130 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1131 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1132 CMD(tdls_mgmt, TDLS_MGMT);
1133 CMD(tdls_oper, TDLS_OPER);
1134 }
807f8a8c
LC		 1135 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1136 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1137 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1138 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1139 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1140 i++;
9360ffd1
DM		 1141 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1142 goto nla_put_failure;
5e760230 1143 }
98104fde 1144 CMD(start_p2p_device, START_P2P_DEVICE);
f4e583c8 1145 CMD(set_mcast_rate, SET_MCAST_RATE);
8fdc621d 1146
4745fc09
KV		 1147#ifdef CONFIG_NL80211_TESTMODE
1148 CMD(testmode_cmd, TESTMODE);
1149#endif
1150
8fdc621d 1151#undef CMD
b23aa676 1152
6829c878 1153 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1154 i++;
9360ffd1
DM		 1155 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1156 goto nla_put_failure;
b23aa676
SO		 1157 }
1158
6829c878 1159 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1160 i++;
9360ffd1
DM		 1161 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1162 goto nla_put_failure;
b23aa676
SO		 1163 }
1164
8fdc621d
JB		 1165 nla_nest_end(msg, nl_cmds);
1166
7c4ef712 1167 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1168 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1169 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1170 dev->wiphy.max_remain_on_channel_duration))
1171 goto nla_put_failure;
a293911d 1172
9360ffd1
DM		 1173 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1174 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1175 goto nla_put_failure;
f7ca38df 1176
2e161f78
JB		 1177 if (mgmt_stypes) {
1178 u16 stypes;
1179 struct nlattr *nl_ftypes, *nl_ifs;
1180 enum nl80211_iftype ift;
1181
1182 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1183 if (!nl_ifs)
1184 goto nla_put_failure;
1185
1186 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1187 nl_ftypes = nla_nest_start(msg, ift);
1188 if (!nl_ftypes)
1189 goto nla_put_failure;
1190 i = 0;
1191 stypes = mgmt_stypes[ift].tx;
1192 while (stypes) {
9360ffd1
DM		 1193 if ((stypes & 1) &&
1194 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1195 (i << 4) | IEEE80211_FTYPE_MGMT))
1196 goto nla_put_failure;
2e161f78
JB		 1197 stypes >>= 1;
1198 i++;
1199 }
1200 nla_nest_end(msg, nl_ftypes);
1201 }
1202
74b70a4e
JB		 1203 nla_nest_end(msg, nl_ifs);
1204
2e161f78
JB		 1205 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1206 if (!nl_ifs)
1207 goto nla_put_failure;
1208
1209 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1210 nl_ftypes = nla_nest_start(msg, ift);
1211 if (!nl_ftypes)
1212 goto nla_put_failure;
1213 i = 0;
1214 stypes = mgmt_stypes[ift].rx;
1215 while (stypes) {
9360ffd1
DM		 1216 if ((stypes & 1) &&
1217 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1218 (i << 4) | IEEE80211_FTYPE_MGMT))
1219 goto nla_put_failure;
2e161f78
JB		 1220 stypes >>= 1;
1221 i++;
1222 }
1223 nla_nest_end(msg, nl_ftypes);
1224 }
1225 nla_nest_end(msg, nl_ifs);
1226 }
1227
dfb89c56 1228#ifdef CONFIG_PM
ff1b6e69
JB		 1229 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1230 struct nlattr *nl_wowlan;
1231
1232 nl_wowlan = nla_nest_start(msg,
1233 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1234 if (!nl_wowlan)
1235 goto nla_put_failure;
1236
9360ffd1
DM		 1237 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1238 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1239 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1240 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1241 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1242 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1243 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1244 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1245 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1246 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1247 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1248 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1249 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1250 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1251 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1252 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1253 goto nla_put_failure;
ff1b6e69
JB		 1254 if (dev->wiphy.wowlan.n_patterns) {
1255 struct nl80211_wowlan_pattern_support pat = {
1256 .max_patterns = dev->wiphy.wowlan.n_patterns,
1257 .min_pattern_len =
1258 dev->wiphy.wowlan.pattern_min_len,
1259 .max_pattern_len =
1260 dev->wiphy.wowlan.pattern_max_len,
bb92d199
AK		 1261 .max_pkt_offset =
1262 dev->wiphy.wowlan.max_pkt_offset,
ff1b6e69 1263 };
9360ffd1
DM		 1264 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1265 sizeof(pat), &pat))
1266 goto nla_put_failure;
ff1b6e69
JB		 1267 }
1268
1269 nla_nest_end(msg, nl_wowlan);
1270 }
dfb89c56 1271#endif
ff1b6e69 1272
7527a782
JB		 1273 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1274 dev->wiphy.software_iftypes))
1275 goto nla_put_failure;
1276
1277 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1278 goto nla_put_failure;
1279
9360ffd1
DM		 1280 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1281 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1282 dev->wiphy.ap_sme_capa))
1283 goto nla_put_failure;
562a7480 1284
9360ffd1
DM		 1285 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1286 dev->wiphy.features))
1287 goto nla_put_failure;
1f074bd8 1288
9360ffd1
DM		 1289 if (dev->wiphy.ht_capa_mod_mask &&
1290 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1291 sizeof(*dev->wiphy.ht_capa_mod_mask),
1292 dev->wiphy.ht_capa_mod_mask))
1293 goto nla_put_failure;
7e7c8926 1294
77765eaf
VT		 1295 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1296 dev->wiphy.max_acl_mac_addrs &&
1297 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1298 dev->wiphy.max_acl_mac_addrs))
1299 goto nla_put_failure;
a50df0c4 1300
55682965
JB		 1301 return genlmsg_end(msg, hdr);
1302
1303 nla_put_failure:
bc3ed28c
TG		 1304 genlmsg_cancel(msg, hdr);
1305 return -EMSGSIZE;
55682965
JB		 1306}
1307
1308static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1309{
645e77de 1310 int idx = 0, ret;
55682965
JB		 1311 int start = cb->args[0];
1312 struct cfg80211_registered_device *dev;
1313
a1794390 1314 mutex_lock(&cfg80211_mutex);
79c97e97 1315 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1316 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1317 continue;
b4637271 1318 if (++idx <= start)
55682965 1319 continue;
645e77de
JB		 1320 ret = nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1321 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1322 dev);
1323 if (ret < 0) {
1324 /*
1325 * If sending the wiphy data didn't fit (ENOBUFS or
1326 * EMSGSIZE returned), this SKB is still empty (so
1327 * it's not too big because another wiphy dataset is
1328 * already in the skb) and we've not tried to adjust
1329 * the dump allocation yet ... then adjust the alloc
1330 * size to be bigger, and return 1 but with the empty
1331 * skb. This results in an empty message being RX'ed
1332 * in userspace, but that is ignored.
1333 *
1334 * We can then retry with the larger buffer.
1335 */
1336 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1337 !skb->len &&
1338 cb->min_dump_alloc < 4096) {
1339 cb->min_dump_alloc = 4096;
1340 mutex_unlock(&cfg80211_mutex);
1341 return 1;
1342 }
b4637271 1343 idx--;
55682965 1344 break;
b4637271 1345 }
55682965 1346 }
a1794390 1347 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1348
1349 cb->args[0] = idx;
1350
1351 return skb->len;
1352}
1353
1354static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1355{
1356 struct sk_buff *msg;
4c476991 1357 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1358
645e77de 1359 msg = nlmsg_new(4096, GFP_KERNEL);
55682965 1360 if (!msg)
4c476991 1361 return -ENOMEM;
55682965 1362
15e47304 1363 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
4c476991
JB		 1364 nlmsg_free(msg);
1365 return -ENOBUFS;
1366 }
55682965 1367
134e6375 1368 return genlmsg_reply(msg, info);
55682965
JB		 1369}
1370
31888487
JM		 1371static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1372 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1373 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1374 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1375 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1376 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1377};
1378
1379static int parse_txq_params(struct nlattr *tb[],
1380 struct ieee80211_txq_params *txq_params)
1381{
a3304b0a 1382 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1383 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1384 !tb[NL80211_TXQ_ATTR_AIFS])
1385 return -EINVAL;
1386
a3304b0a 1387 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1388 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1389 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1390 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1391 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1392
a3304b0a
JB		 1393 if (txq_params->ac >= NL80211_NUM_ACS)
1394 return -EINVAL;
1395
31888487
JM		 1396 return 0;
1397}
1398
f444de05
JB		 1399static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1400{
1401 /*
cc1d2806
JB		 1402 * You can only set the channel explicitly for WDS interfaces,
1403 * all others have their channel managed via their respective
1404 * "establish a connection" command (connect, join, ...)
1405 *
1406 * For AP/GO and mesh mode, the channel can be set with the
1407 * channel userspace API, but is only stored and passed to the
1408 * low-level driver when the AP starts or the mesh is joined.
1409 * This is for backward compatibility, userspace can also give
1410 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1411 *
1412 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1413 * whatever else is going on, so they have their own special
1414 * operation to set the monitor channel if possible.
f444de05
JB		 1415 */
1416 return !wdev ||
1417 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1418 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1419 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1420 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1421}
1422
683b6d3b
JB		 1423static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1424 struct genl_info *info,
1425 struct cfg80211_chan_def *chandef)
1426{
dbeca2ea 1427 u32 control_freq;
683b6d3b
JB		 1428
1429 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1430 return -EINVAL;
1431
1432 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1433
1434 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
3d9d1d66
JB		 1435 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1436 chandef->center_freq1 = control_freq;
1437 chandef->center_freq2 = 0;
683b6d3b
JB		 1438
1439 /* Primary channel not allowed */
1440 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1441 return -EINVAL;
1442
3d9d1d66
JB		 1443 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1444 enum nl80211_channel_type chantype;
1445
1446 chantype = nla_get_u32(
1447 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1448
1449 switch (chantype) {
1450 case NL80211_CHAN_NO_HT:
1451 case NL80211_CHAN_HT20:
1452 case NL80211_CHAN_HT40PLUS:
1453 case NL80211_CHAN_HT40MINUS:
1454 cfg80211_chandef_create(chandef, chandef->chan,
1455 chantype);
1456 break;
1457 default:
1458 return -EINVAL;
1459 }
1460 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1461 chandef->width =
1462 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1463 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1464 chandef->center_freq1 =
1465 nla_get_u32(
1466 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1467 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1468 chandef->center_freq2 =
1469 nla_get_u32(
1470 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1471 }
1472
9f5e8f6e 1473 if (!cfg80211_chandef_valid(chandef))
3d9d1d66
JB		 1474 return -EINVAL;
1475
9f5e8f6e
JB		 1476 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1477 IEEE80211_CHAN_DISABLED))
3d9d1d66
JB		 1478 return -EINVAL;
1479
683b6d3b
JB		 1480 return 0;
1481}
1482
f444de05
JB		 1483static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1484 struct wireless_dev *wdev,
1485 struct genl_info *info)
1486{
683b6d3b 1487 struct cfg80211_chan_def chandef;
f444de05 1488 int result;
e8c9bd5b
JB		 1489 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1490
1491 if (wdev)
1492 iftype = wdev->iftype;
f444de05 1493
f444de05
JB		 1494 if (!nl80211_can_set_dev_channel(wdev))
1495 return -EOPNOTSUPP;
1496
683b6d3b
JB		 1497 result = nl80211_parse_chandef(rdev, info, &chandef);
1498 if (result)
1499 return result;
f444de05
JB		 1500
1501 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1502 switch (iftype) {
aa430da4
JB		 1503 case NL80211_IFTYPE_AP:
1504 case NL80211_IFTYPE_P2P_GO:
1505 if (wdev->beacon_interval) {
1506 result = -EBUSY;
1507 break;
1508 }
683b6d3b 1509 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
aa430da4
JB		 1510 result = -EINVAL;
1511 break;
1512 }
683b6d3b 1513 wdev->preset_chandef = chandef;
aa430da4
JB		 1514 result = 0;
1515 break;
cc1d2806 1516 case NL80211_IFTYPE_MESH_POINT:
683b6d3b 1517 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
cc1d2806 1518 break;
e8c9bd5b 1519 case NL80211_IFTYPE_MONITOR:
683b6d3b 1520 result = cfg80211_set_monitor_channel(rdev, &chandef);
e8c9bd5b 1521 break;
aa430da4 1522 default:
e8c9bd5b 1523 result = -EINVAL;
f444de05
JB		 1524 }
1525 mutex_unlock(&rdev->devlist_mtx);
1526
1527 return result;
1528}
1529
1530static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1531{
4c476991
JB		 1532 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1533 struct net_device *netdev = info->user_ptr[1];
f444de05 1534
4c476991 1535 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1536}
1537
e8347eba
BJ		 1538static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1539{
43b19952
JB		 1540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1541 struct net_device *dev = info->user_ptr[1];
1542 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1543 const u8 *bssid;
e8347eba
BJ		 1544
1545 if (!info->attrs[NL80211_ATTR_MAC])
1546 return -EINVAL;
1547
43b19952
JB		 1548 if (netif_running(dev))
1549 return -EBUSY;
e8347eba 1550
43b19952
JB		 1551 if (!rdev->ops->set_wds_peer)
1552 return -EOPNOTSUPP;
e8347eba 1553
43b19952
JB		 1554 if (wdev->iftype != NL80211_IFTYPE_WDS)
1555 return -EOPNOTSUPP;
e8347eba
BJ		 1556
1557 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
e35e4d28 1558 return rdev_set_wds_peer(rdev, dev, bssid);
e8347eba
BJ		 1559}
1560
1561
55682965
JB		 1562static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1563{
1564 struct cfg80211_registered_device *rdev;
f444de05
JB		 1565 struct net_device *netdev = NULL;
1566 struct wireless_dev *wdev;
a1e567c8 1567 int result = 0, rem_txq_params = 0;
31888487 1568 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1569 u32 changed;
1570 u8 retry_short = 0, retry_long = 0;
1571 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1572 u8 coverage_class = 0;
55682965 1573
f444de05
JB		 1574 /*
1575 * Try to find the wiphy and netdev. Normally this
1576 * function shouldn't need the netdev, but this is
1577 * done for backward compatibility -- previously
1578 * setting the channel was done per wiphy, but now
1579 * it is per netdev. Previous userland like hostapd
1580 * also passed a netdev to set_wiphy, so that it is
1581 * possible to let that go to the right netdev!
1582 */
4bbf4d56
JB		 1583 mutex_lock(&cfg80211_mutex);
1584
f444de05
JB		 1585 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1586 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1587
1588 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1589 if (netdev && netdev->ieee80211_ptr) {
1590 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1591 mutex_lock(&rdev->mtx);
1592 } else
1593 netdev = NULL;
4bbf4d56
JB		 1594 }
1595
f444de05 1596 if (!netdev) {
878d9ec7
JB		 1597 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1598 info->attrs);
f444de05
JB		 1599 if (IS_ERR(rdev)) {
1600 mutex_unlock(&cfg80211_mutex);
4c476991 1601 return PTR_ERR(rdev);
f444de05
JB		 1602 }
1603 wdev = NULL;
1604 netdev = NULL;
1605 result = 0;
1606
1607 mutex_lock(&rdev->mtx);
71fe96bf 1608 } else
f444de05 1609 wdev = netdev->ieee80211_ptr;
f444de05
JB		 1610
1611 /*
1612 * end workaround code, by now the rdev is available
1613 * and locked, and wdev may or may not be NULL.
1614 */
4bbf4d56
JB		 1615
1616 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1617 result = cfg80211_dev_rename(
1618 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1619
1620 mutex_unlock(&cfg80211_mutex);
1621
1622 if (result)
1623 goto bad_res;
31888487
JM		 1624
1625 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1626 struct ieee80211_txq_params txq_params;
1627 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1628
1629 if (!rdev->ops->set_txq_params) {
1630 result = -EOPNOTSUPP;
1631 goto bad_res;
1632 }
1633
f70f01c2
EP		 1634 if (!netdev) {
1635 result = -EINVAL;
1636 goto bad_res;
1637 }
1638
133a3ff2
JB		 1639 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1640 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1641 result = -EINVAL;
1642 goto bad_res;
1643 }
1644
2b5f8b0b
JB		 1645 if (!netif_running(netdev)) {
1646 result = -ENETDOWN;
1647 goto bad_res;
1648 }
1649
31888487
JM		 1650 nla_for_each_nested(nl_txq_params,
1651 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1652 rem_txq_params) {
1653 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1654 nla_data(nl_txq_params),
1655 nla_len(nl_txq_params),
1656 txq_params_policy);
1657 result = parse_txq_params(tb, &txq_params);
1658 if (result)
1659 goto bad_res;
1660
e35e4d28
HG		 1661 result = rdev_set_txq_params(rdev, netdev,
1662 &txq_params);
31888487
JM		 1663 if (result)
1664 goto bad_res;
1665 }
1666 }
55682965 1667
72bdcf34 1668 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
71fe96bf
JB		 1669 result = __nl80211_set_channel(rdev,
1670 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1671 info);
72bdcf34
JM		 1672 if (result)
1673 goto bad_res;
1674 }
1675
98d2ff8b 1676 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
c8442118 1677 struct wireless_dev *txp_wdev = wdev;
98d2ff8b
JO		 1678 enum nl80211_tx_power_setting type;
1679 int idx, mbm = 0;
1680
c8442118
JB		 1681 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1682 txp_wdev = NULL;
1683
98d2ff8b 1684 if (!rdev->ops->set_tx_power) {
60ea385f 1685 result = -EOPNOTSUPP;
98d2ff8b
JO		 1686 goto bad_res;
1687 }
1688
1689 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1690 type = nla_get_u32(info->attrs[idx]);
1691
1692 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1693 (type != NL80211_TX_POWER_AUTOMATIC)) {
1694 result = -EINVAL;
1695 goto bad_res;
1696 }
1697
1698 if (type != NL80211_TX_POWER_AUTOMATIC) {
1699 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1700 mbm = nla_get_u32(info->attrs[idx]);
1701 }
1702
c8442118 1703 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
98d2ff8b
JO		 1704 if (result)
1705 goto bad_res;
1706 }
1707
afe0cbf8
BR		 1708 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1709 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1710 u32 tx_ant, rx_ant;
7f531e03
BR		 1711 if ((!rdev->wiphy.available_antennas_tx &&
1712 !rdev->wiphy.available_antennas_rx) ||
1713 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1714 result = -EOPNOTSUPP;
1715 goto bad_res;
1716 }
1717
1718 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1719 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1720
a7ffac95 1721 /* reject antenna configurations which don't match the
7f531e03
BR		 1722 * available antenna masks, except for the "all" mask */
1723 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1724 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1725 result = -EINVAL;
1726 goto bad_res;
1727 }
1728
7f531e03
BR		 1729 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1730 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1731
e35e4d28 1732 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
afe0cbf8
BR		 1733 if (result)
1734 goto bad_res;
1735 }
1736
b9a5f8ca
JM		 1737 changed = 0;
1738
1739 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1740 retry_short = nla_get_u8(
1741 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1742 if (retry_short == 0) {
1743 result = -EINVAL;
1744 goto bad_res;
1745 }
1746 changed |= WIPHY_PARAM_RETRY_SHORT;
1747 }
1748
1749 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1750 retry_long = nla_get_u8(
1751 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1752 if (retry_long == 0) {
1753 result = -EINVAL;
1754 goto bad_res;
1755 }
1756 changed |= WIPHY_PARAM_RETRY_LONG;
1757 }
1758
1759 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1760 frag_threshold = nla_get_u32(
1761 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1762 if (frag_threshold < 256) {
1763 result = -EINVAL;
1764 goto bad_res;
1765 }
1766 if (frag_threshold != (u32) -1) {
1767 /*
1768 * Fragments (apart from the last one) are required to
1769 * have even length. Make the fragmentation code
1770 * simpler by stripping LSB should someone try to use
1771 * odd threshold value.
1772 */
1773 frag_threshold &= ~0x1;
1774 }
1775 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1776 }
1777
1778 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1779 rts_threshold = nla_get_u32(
1780 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1781 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1782 }
1783
81077e82
LT		 1784 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1785 coverage_class = nla_get_u8(
1786 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1787 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1788 }
1789
b9a5f8ca
JM		 1790 if (changed) {
1791 u8 old_retry_short, old_retry_long;
1792 u32 old_frag_threshold, old_rts_threshold;
81077e82 1793 u8 old_coverage_class;
b9a5f8ca
JM		 1794
1795 if (!rdev->ops->set_wiphy_params) {
1796 result = -EOPNOTSUPP;
1797 goto bad_res;
1798 }
1799
1800 old_retry_short = rdev->wiphy.retry_short;
1801 old_retry_long = rdev->wiphy.retry_long;
1802 old_frag_threshold = rdev->wiphy.frag_threshold;
1803 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1804 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1805
1806 if (changed & WIPHY_PARAM_RETRY_SHORT)
1807 rdev->wiphy.retry_short = retry_short;
1808 if (changed & WIPHY_PARAM_RETRY_LONG)
1809 rdev->wiphy.retry_long = retry_long;
1810 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1811 rdev->wiphy.frag_threshold = frag_threshold;
1812 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1813 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1814 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1815 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca 1816
e35e4d28 1817 result = rdev_set_wiphy_params(rdev, changed);
b9a5f8ca
JM		 1818 if (result) {
1819 rdev->wiphy.retry_short = old_retry_short;
1820 rdev->wiphy.retry_long = old_retry_long;
1821 rdev->wiphy.frag_threshold = old_frag_threshold;
1822 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1823 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1824 }
1825 }
72bdcf34 1826
306d6112 1827 bad_res:
4bbf4d56 1828 mutex_unlock(&rdev->mtx);
f444de05
JB		 1829 if (netdev)
1830 dev_put(netdev);
55682965
JB		 1831 return result;
1832}
1833
71bbc994
JB		 1834static inline u64 wdev_id(struct wireless_dev *wdev)
1835{
1836 return (u64)wdev->identifier |
1837 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1838}
55682965 1839
683b6d3b
JB		 1840static int nl80211_send_chandef(struct sk_buff *msg,
1841 struct cfg80211_chan_def *chandef)
1842{
9f5e8f6e 1843 WARN_ON(!cfg80211_chandef_valid(chandef));
3d9d1d66 1844
683b6d3b
JB		 1845 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1846 chandef->chan->center_freq))
1847 return -ENOBUFS;
3d9d1d66
JB		 1848 switch (chandef->width) {
1849 case NL80211_CHAN_WIDTH_20_NOHT:
1850 case NL80211_CHAN_WIDTH_20:
1851 case NL80211_CHAN_WIDTH_40:
1852 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1853 cfg80211_get_chandef_type(chandef)))
1854 return -ENOBUFS;
1855 break;
1856 default:
1857 break;
1858 }
1859 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1860 return -ENOBUFS;
1861 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1862 return -ENOBUFS;
1863 if (chandef->center_freq2 &&
1864 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
683b6d3b
JB		 1865 return -ENOBUFS;
1866 return 0;
1867}
1868
15e47304 1869static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
d726405a 1870 struct cfg80211_registered_device *rdev,
72fb2abc 1871 struct wireless_dev *wdev)
55682965 1872{
72fb2abc 1873 struct net_device *dev = wdev->netdev;
55682965
JB		 1874 void *hdr;
1875
15e47304 1876 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
55682965
JB		 1877 if (!hdr)
1878 return -1;
1879
72fb2abc
JB		 1880 if (dev &&
1881 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
98104fde 1882 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
72fb2abc
JB		 1883 goto nla_put_failure;
1884
1885 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1886 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 1887 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
98104fde 1888 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
9360ffd1
DM		 1889 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1890 rdev->devlist_generation ^
1891 (cfg80211_rdev_list_generation << 2)))
1892 goto nla_put_failure;
f5ea9120 1893
5b7ccaf3 1894 if (rdev->ops->get_channel) {
683b6d3b
JB		 1895 int ret;
1896 struct cfg80211_chan_def chandef;
1897
1898 ret = rdev_get_channel(rdev, wdev, &chandef);
1899 if (ret == 0) {
1900 if (nl80211_send_chandef(msg, &chandef))
1901 goto nla_put_failure;
1902 }
d91df0e3
PF		 1903 }
1904
b84e7a05
AQ		 1905 if (wdev->ssid_len) {
1906 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1907 goto nla_put_failure;
1908 }
1909
55682965
JB		 1910 return genlmsg_end(msg, hdr);
1911
1912 nla_put_failure:
bc3ed28c
TG		 1913 genlmsg_cancel(msg, hdr);
1914 return -EMSGSIZE;
55682965
JB		 1915}
1916
1917static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1918{
1919 int wp_idx = 0;
1920 int if_idx = 0;
1921 int wp_start = cb->args[0];
1922 int if_start = cb->args[1];
f5ea9120 1923 struct cfg80211_registered_device *rdev;
55682965
JB		 1924 struct wireless_dev *wdev;
1925
a1794390 1926 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1927 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1928 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1929 continue;
bba95fef
JB		 1930 if (wp_idx < wp_start) {
1931 wp_idx++;
55682965 1932 continue;
bba95fef 1933 }
55682965
JB		 1934 if_idx = 0;
1935
f5ea9120 1936 mutex_lock(&rdev->devlist_mtx);
89a54e48 1937 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1938 if (if_idx < if_start) {
1939 if_idx++;
55682965 1940 continue;
bba95fef 1941 }
15e47304 1942 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
55682965 1943 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 1944 rdev, wdev) < 0) {
f5ea9120 1945 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1946 goto out;
1947 }
1948 if_idx++;
55682965 1949 }
f5ea9120 1950 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1951
1952 wp_idx++;
55682965 1953 }
bba95fef 1954 out:
a1794390 1955 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1956
1957 cb->args[0] = wp_idx;
1958 cb->args[1] = if_idx;
1959
1960 return skb->len;
1961}
1962
1963static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1964{
1965 struct sk_buff *msg;
4c476991 1966 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 1967 struct wireless_dev *wdev = info->user_ptr[1];
55682965 1968
fd2120ca 1969 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1970 if (!msg)
4c476991 1971 return -ENOMEM;
55682965 1972
15e47304 1973 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
72fb2abc 1974 dev, wdev) < 0) {
4c476991
JB		 1975 nlmsg_free(msg);
1976 return -ENOBUFS;
1977 }
55682965 1978
134e6375 1979 return genlmsg_reply(msg, info);
55682965
JB		 1980}
1981
66f7ac50
MW		 1982static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1983 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1984 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1985 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1986 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1987 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1988};
1989
1990static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1991{
1992 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1993 int flag;
1994
1995 *mntrflags = 0;
1996
1997 if (!nla)
1998 return -EINVAL;
1999
2000 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2001 nla, mntr_flags_policy))
2002 return -EINVAL;
2003
2004 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2005 if (flags[flag])
2006 *mntrflags |= (1<<flag);
2007
2008 return 0;
2009}
2010
9bc383de 2011static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 2012 struct net_device *netdev, u8 use_4addr,
2013 enum nl80211_iftype iftype)
9bc383de 2014{
ad4bb6f8 2015 if (!use_4addr) {
f350a0a8 2016 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 2017 return -EBUSY;
9bc383de 2018 return 0;
ad4bb6f8 2019 }
9bc383de
JB		 2020
2021 switch (iftype) {
2022 case NL80211_IFTYPE_AP_VLAN:
2023 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2024 return 0;
2025 break;
2026 case NL80211_IFTYPE_STATION:
2027 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2028 return 0;
2029 break;
2030 default:
2031 break;
2032 }
2033
2034 return -EOPNOTSUPP;
2035}
2036
55682965
JB		 2037static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2038{
4c476991 2039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2040 struct vif_params params;
e36d56b6 2041 int err;
04a773ad 2042 enum nl80211_iftype otype, ntype;
4c476991 2043 struct net_device *dev = info->user_ptr[1];
92ffe055 2044 u32 _flags, *flags = NULL;
ac7f9cfa 2045 bool change = false;
55682965 2046
2ec600d6
LCC		 2047 memset(&params, 0, sizeof(params));
2048
04a773ad 2049 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 2050
723b038d 2051 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 2052 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 2053 if (otype != ntype)
ac7f9cfa 2054 change = true;
4c476991
JB		 2055 if (ntype > NL80211_IFTYPE_MAX)
2056 return -EINVAL;
723b038d
JB		 2057 }
2058
92ffe055 2059 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2060 struct wireless_dev *wdev = dev->ieee80211_ptr;
2061
4c476991
JB		 2062 if (ntype != NL80211_IFTYPE_MESH_POINT)
2063 return -EINVAL;
29cbe68c
JB		 2064 if (netif_running(dev))
2065 return -EBUSY;
2066
2067 wdev_lock(wdev);
2068 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2069 IEEE80211_MAX_MESH_ID_LEN);
2070 wdev->mesh_id_up_len =
2071 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2072 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2073 wdev->mesh_id_up_len);
2074 wdev_unlock(wdev);
2ec600d6
LCC		 2075 }
2076
8b787643
FF		 2077 if (info->attrs[NL80211_ATTR_4ADDR]) {
2078 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2079 change = true;
ad4bb6f8 2080 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 2081 if (err)
4c476991 2082 return err;
8b787643
FF		 2083 } else {
2084 params.use_4addr = -1;
2085 }
2086
92ffe055 2087 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 2088 if (ntype != NL80211_IFTYPE_MONITOR)
2089 return -EINVAL;
92ffe055
JB		 2090 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2091 &_flags);
ac7f9cfa 2092 if (err)
4c476991 2093 return err;
ac7f9cfa
JB		 2094
2095 flags = &_flags;
2096 change = true;
92ffe055 2097 }
3b85875a 2098
ac7f9cfa 2099 if (change)
3d54d255 2100 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 2101 else
2102 err = 0;
60719ffd 2103
9bc383de
JB		 2104 if (!err && params.use_4addr != -1)
2105 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2106
55682965
JB		 2107 return err;
2108}
2109
2110static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2111{
4c476991 2112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2113 struct vif_params params;
84efbb84 2114 struct wireless_dev *wdev;
1c90f9d4 2115 struct sk_buff *msg;
55682965
JB		 2116 int err;
2117 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 2118 u32 flags;
55682965 2119
2ec600d6
LCC		 2120 memset(&params, 0, sizeof(params));
2121
55682965
JB		 2122 if (!info->attrs[NL80211_ATTR_IFNAME])
2123 return -EINVAL;
2124
2125 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2126 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2127 if (type > NL80211_IFTYPE_MAX)
2128 return -EINVAL;
2129 }
2130
79c97e97 2131 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 2132 !(rdev->wiphy.interface_modes & (1 << type)))
2133 return -EOPNOTSUPP;
55682965 2134
1c18f145
AS		 2135 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2136 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2137 ETH_ALEN);
2138 if (!is_valid_ether_addr(params.macaddr))
2139 return -EADDRNOTAVAIL;
2140 }
2141
9bc383de 2142 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2143 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2144 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2145 if (err)
4c476991 2146 return err;
9bc383de 2147 }
8b787643 2148
1c90f9d4
JB		 2149 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2150 if (!msg)
2151 return -ENOMEM;
2152
66f7ac50
MW		 2153 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2154 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2155 &flags);
e35e4d28
HG		 2156 wdev = rdev_add_virtual_intf(rdev,
2157 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2158 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2159 if (IS_ERR(wdev)) {
2160 nlmsg_free(msg);
84efbb84 2161 return PTR_ERR(wdev);
1c90f9d4 2162 }
2ec600d6 2163
98104fde
JB		 2164 switch (type) {
2165 case NL80211_IFTYPE_MESH_POINT:
2166 if (!info->attrs[NL80211_ATTR_MESH_ID])
2167 break;
29cbe68c
JB		 2168 wdev_lock(wdev);
2169 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2170 IEEE80211_MAX_MESH_ID_LEN);
2171 wdev->mesh_id_up_len =
2172 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2173 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2174 wdev->mesh_id_up_len);
2175 wdev_unlock(wdev);
98104fde
JB		 2176 break;
2177 case NL80211_IFTYPE_P2P_DEVICE:
2178 /*
2179 * P2P Device doesn't have a netdev, so doesn't go
2180 * through the netdev notifier and must be added here
2181 */
2182 mutex_init(&wdev->mtx);
2183 INIT_LIST_HEAD(&wdev->event_list);
2184 spin_lock_init(&wdev->event_lock);
2185 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2186 spin_lock_init(&wdev->mgmt_registrations_lock);
2187
2188 mutex_lock(&rdev->devlist_mtx);
2189 wdev->identifier = ++rdev->wdev_id;
2190 list_add_rcu(&wdev->list, &rdev->wdev_list);
2191 rdev->devlist_generation++;
2192 mutex_unlock(&rdev->devlist_mtx);
2193 break;
2194 default:
2195 break;
29cbe68c
JB		 2196 }
2197
15e47304 2198 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1c90f9d4
JB		 2199 rdev, wdev) < 0) {
2200 nlmsg_free(msg);
2201 return -ENOBUFS;
2202 }
2203
2204 return genlmsg_reply(msg, info);
55682965
JB		 2205}
2206
2207static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2208{
4c476991 2209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2210 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2211
4c476991
JB		 2212 if (!rdev->ops->del_virtual_intf)
2213 return -EOPNOTSUPP;
55682965 2214
84efbb84
JB		 2215 /*
2216 * If we remove a wireless device without a netdev then clear
2217 * user_ptr[1] so that nl80211_post_doit won't dereference it
2218 * to check if it needs to do dev_put(). Otherwise it crashes
2219 * since the wdev has been freed, unlike with a netdev where
2220 * we need the dev_put() for the netdev to really be freed.
2221 */
2222 if (!wdev->netdev)
2223 info->user_ptr[1] = NULL;
2224
e35e4d28 2225 return rdev_del_virtual_intf(rdev, wdev);
55682965
JB		 2226}
2227
1d9d9213
SW		 2228static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2229{
2230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2231 struct net_device *dev = info->user_ptr[1];
2232 u16 noack_map;
2233
2234 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2235 return -EINVAL;
2236
2237 if (!rdev->ops->set_noack_map)
2238 return -EOPNOTSUPP;
2239
2240 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2241
e35e4d28 2242 return rdev_set_noack_map(rdev, dev, noack_map);
1d9d9213
SW		 2243}
2244
41ade00f
JB		 2245struct get_key_cookie {
2246 struct sk_buff *msg;
2247 int error;
b9454e83 2248 int idx;
41ade00f
JB		 2249};
2250
2251static void get_key_callback(void *c, struct key_params *params)
2252{
b9454e83 2253 struct nlattr *key;
41ade00f
JB		 2254 struct get_key_cookie *cookie = c;
2255
9360ffd1
DM		 2256 if ((params->key &&
2257 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2258 params->key_len, params->key)) ||
2259 (params->seq &&
2260 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2261 params->seq_len, params->seq)) ||
2262 (params->cipher &&
2263 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2264 params->cipher)))
2265 goto nla_put_failure;
41ade00f 2266
b9454e83
JB		 2267 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2268 if (!key)
2269 goto nla_put_failure;
2270
9360ffd1
DM		 2271 if ((params->key &&
2272 nla_put(cookie->msg, NL80211_KEY_DATA,
2273 params->key_len, params->key)) ||
2274 (params->seq &&
2275 nla_put(cookie->msg, NL80211_KEY_SEQ,
2276 params->seq_len, params->seq)) ||
2277 (params->cipher &&
2278 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2279 params->cipher)))
2280 goto nla_put_failure;
b9454e83 2281
9360ffd1
DM		 2282 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2283 goto nla_put_failure;
b9454e83
JB		 2284
2285 nla_nest_end(cookie->msg, key);
2286
41ade00f
JB		 2287 return;
2288 nla_put_failure:
2289 cookie->error = 1;
2290}
2291
2292static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2293{
4c476991 2294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2295 int err;
4c476991 2296 struct net_device *dev = info->user_ptr[1];
41ade00f 2297 u8 key_idx = 0;
e31b8213
JB		 2298 const u8 *mac_addr = NULL;
2299 bool pairwise;
41ade00f
JB		 2300 struct get_key_cookie cookie = {
2301 .error = 0,
2302 };
2303 void *hdr;
2304 struct sk_buff *msg;
2305
2306 if (info->attrs[NL80211_ATTR_KEY_IDX])
2307 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2308
3cfcf6ac 2309 if (key_idx > 5)
41ade00f
JB		 2310 return -EINVAL;
2311
2312 if (info->attrs[NL80211_ATTR_MAC])
2313 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2314
e31b8213
JB		 2315 pairwise = !!mac_addr;
2316 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2317 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2318 if (kt >= NUM_NL80211_KEYTYPES)
2319 return -EINVAL;
2320 if (kt != NL80211_KEYTYPE_GROUP &&
2321 kt != NL80211_KEYTYPE_PAIRWISE)
2322 return -EINVAL;
2323 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2324 }
2325
4c476991
JB		 2326 if (!rdev->ops->get_key)
2327 return -EOPNOTSUPP;
41ade00f 2328
fd2120ca 2329 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2330 if (!msg)
2331 return -ENOMEM;
41ade00f 2332
15e47304 2333 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
41ade00f 2334 NL80211_CMD_NEW_KEY);
4c476991
JB		 2335 if (IS_ERR(hdr))
2336 return PTR_ERR(hdr);
41ade00f
JB		 2337
2338 cookie.msg = msg;
b9454e83 2339 cookie.idx = key_idx;
41ade00f 2340
9360ffd1
DM		 2341 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2342 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2343 goto nla_put_failure;
2344 if (mac_addr &&
2345 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2346 goto nla_put_failure;
41ade00f 2347
e31b8213
JB		 2348 if (pairwise && mac_addr &&
2349 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2350 return -ENOENT;
2351
e35e4d28
HG		 2352 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2353 get_key_callback);
41ade00f
JB		 2354
2355 if (err)
6c95e2a2 2356 goto free_msg;
41ade00f
JB		 2357
2358 if (cookie.error)
2359 goto nla_put_failure;
2360
2361 genlmsg_end(msg, hdr);
4c476991 2362 return genlmsg_reply(msg, info);
41ade00f
JB		 2363
2364 nla_put_failure:
2365 err = -ENOBUFS;
6c95e2a2 2366 free_msg:
41ade00f 2367 nlmsg_free(msg);
41ade00f
JB		 2368 return err;
2369}
2370
2371static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2372{
4c476991 2373 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2374 struct key_parse key;
41ade00f 2375 int err;
4c476991 2376 struct net_device *dev = info->user_ptr[1];
41ade00f 2377
b9454e83
JB		 2378 err = nl80211_parse_key(info, &key);
2379 if (err)
2380 return err;
41ade00f 2381
b9454e83 2382 if (key.idx < 0)
41ade00f
JB		 2383 return -EINVAL;
2384
b9454e83
JB		 2385 /* only support setting default key */
2386 if (!key.def && !key.defmgmt)
41ade00f
JB		 2387 return -EINVAL;
2388
dbd2fd65 2389 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2390
dbd2fd65
JB		 2391 if (key.def) {
2392 if (!rdev->ops->set_default_key) {
2393 err = -EOPNOTSUPP;
2394 goto out;
2395 }
41ade00f 2396
dbd2fd65
JB		 2397 err = nl80211_key_allowed(dev->ieee80211_ptr);
2398 if (err)
2399 goto out;
2400
e35e4d28 2401 err = rdev_set_default_key(rdev, dev, key.idx,
dbd2fd65
JB		 2402 key.def_uni, key.def_multi);
2403
2404 if (err)
2405 goto out;
fffd0934 2406
3d23e349 2407#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2408 dev->ieee80211_ptr->wext.default_key = key.idx;
2409#endif
2410 } else {
2411 if (key.def_uni || !key.def_multi) {
2412 err = -EINVAL;
2413 goto out;
2414 }
2415
2416 if (!rdev->ops->set_default_mgmt_key) {
2417 err = -EOPNOTSUPP;
2418 goto out;
2419 }
2420
2421 err = nl80211_key_allowed(dev->ieee80211_ptr);
2422 if (err)
2423 goto out;
2424
e35e4d28 2425 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
dbd2fd65
JB		 2426 if (err)
2427 goto out;
2428
2429#ifdef CONFIG_CFG80211_WEXT
2430 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2431#endif
dbd2fd65
JB		 2432 }
2433
2434 out:
fffd0934 2435 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2436
41ade00f
JB		 2437 return err;
2438}
2439
2440static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2441{
4c476991 2442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2443 int err;
4c476991 2444 struct net_device *dev = info->user_ptr[1];
b9454e83 2445 struct key_parse key;
e31b8213 2446 const u8 *mac_addr = NULL;
41ade00f 2447
b9454e83
JB		 2448 err = nl80211_parse_key(info, &key);
2449 if (err)
2450 return err;
41ade00f 2451
b9454e83 2452 if (!key.p.key)
41ade00f
JB		 2453 return -EINVAL;
2454
41ade00f
JB		 2455 if (info->attrs[NL80211_ATTR_MAC])
2456 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2457
e31b8213
JB		 2458 if (key.type == -1) {
2459 if (mac_addr)
2460 key.type = NL80211_KEYTYPE_PAIRWISE;
2461 else
2462 key.type = NL80211_KEYTYPE_GROUP;
2463 }
2464
2465 /* for now */
2466 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2467 key.type != NL80211_KEYTYPE_GROUP)
2468 return -EINVAL;
2469
4c476991
JB		 2470 if (!rdev->ops->add_key)
2471 return -EOPNOTSUPP;
25e47c18 2472
e31b8213
JB		 2473 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2474 key.type == NL80211_KEYTYPE_PAIRWISE,
2475 mac_addr))
4c476991 2476 return -EINVAL;
41ade00f 2477
fffd0934
JB		 2478 wdev_lock(dev->ieee80211_ptr);
2479 err = nl80211_key_allowed(dev->ieee80211_ptr);
2480 if (!err)
e35e4d28
HG		 2481 err = rdev_add_key(rdev, dev, key.idx,
2482 key.type == NL80211_KEYTYPE_PAIRWISE,
2483 mac_addr, &key.p);
fffd0934 2484 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2485
41ade00f
JB		 2486 return err;
2487}
2488
2489static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2490{
4c476991 2491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2492 int err;
4c476991 2493 struct net_device *dev = info->user_ptr[1];
41ade00f 2494 u8 *mac_addr = NULL;
b9454e83 2495 struct key_parse key;
41ade00f 2496
b9454e83
JB		 2497 err = nl80211_parse_key(info, &key);
2498 if (err)
2499 return err;
41ade00f
JB		 2500
2501 if (info->attrs[NL80211_ATTR_MAC])
2502 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2503
e31b8213
JB		 2504 if (key.type == -1) {
2505 if (mac_addr)
2506 key.type = NL80211_KEYTYPE_PAIRWISE;
2507 else
2508 key.type = NL80211_KEYTYPE_GROUP;
2509 }
2510
2511 /* for now */
2512 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2513 key.type != NL80211_KEYTYPE_GROUP)
2514 return -EINVAL;
2515
4c476991
JB		 2516 if (!rdev->ops->del_key)
2517 return -EOPNOTSUPP;
41ade00f 2518
fffd0934
JB		 2519 wdev_lock(dev->ieee80211_ptr);
2520 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2521
2522 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2523 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2524 err = -ENOENT;
2525
fffd0934 2526 if (!err)
e35e4d28
HG		 2527 err = rdev_del_key(rdev, dev, key.idx,
2528 key.type == NL80211_KEYTYPE_PAIRWISE,
2529 mac_addr);
41ade00f 2530
3d23e349 2531#ifdef CONFIG_CFG80211_WEXT
08645126 2532 if (!err) {
b9454e83 2533 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2534 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2535 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2536 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2537 }
2538#endif
fffd0934 2539 wdev_unlock(dev->ieee80211_ptr);
08645126 2540
41ade00f
JB		 2541 return err;
2542}
2543
77765eaf
VT		 2544/* This function returns an error or the number of nested attributes */
2545static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2546{
2547 struct nlattr *attr;
2548 int n_entries = 0, tmp;
2549
2550 nla_for_each_nested(attr, nl_attr, tmp) {
2551 if (nla_len(attr) != ETH_ALEN)
2552 return -EINVAL;
2553
2554 n_entries++;
2555 }
2556
2557 return n_entries;
2558}
2559
2560/*
2561 * This function parses ACL information and allocates memory for ACL data.
2562 * On successful return, the calling function is responsible to free the
2563 * ACL buffer returned by this function.
2564 */
2565static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2566 struct genl_info *info)
2567{
2568 enum nl80211_acl_policy acl_policy;
2569 struct nlattr *attr;
2570 struct cfg80211_acl_data *acl;
2571 int i = 0, n_entries, tmp;
2572
2573 if (!wiphy->max_acl_mac_addrs)
2574 return ERR_PTR(-EOPNOTSUPP);
2575
2576 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2577 return ERR_PTR(-EINVAL);
2578
2579 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2580 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2581 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2582 return ERR_PTR(-EINVAL);
2583
2584 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2585 return ERR_PTR(-EINVAL);
2586
2587 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2588 if (n_entries < 0)
2589 return ERR_PTR(n_entries);
2590
2591 if (n_entries > wiphy->max_acl_mac_addrs)
2592 return ERR_PTR(-ENOTSUPP);
2593
2594 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2595 GFP_KERNEL);
2596 if (!acl)
2597 return ERR_PTR(-ENOMEM);
2598
2599 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2600 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2601 i++;
2602 }
2603
2604 acl->n_acl_entries = n_entries;
2605 acl->acl_policy = acl_policy;
2606
2607 return acl;
2608}
2609
2610static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2611{
2612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2613 struct net_device *dev = info->user_ptr[1];
2614 struct cfg80211_acl_data *acl;
2615 int err;
2616
2617 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2618 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2619 return -EOPNOTSUPP;
2620
2621 if (!dev->ieee80211_ptr->beacon_interval)
2622 return -EINVAL;
2623
2624 acl = parse_acl_data(&rdev->wiphy, info);
2625 if (IS_ERR(acl))
2626 return PTR_ERR(acl);
2627
2628 err = rdev_set_mac_acl(rdev, dev, acl);
2629
2630 kfree(acl);
2631
2632 return err;
2633}
2634
8860020e
JB		 2635static int nl80211_parse_beacon(struct genl_info *info,
2636 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2637{
8860020e 2638 bool haveinfo = false;
ed1b6cc7 2639
9946ecfb
JM		 2640 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2641 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2642 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2643 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2644 return -EINVAL;
2645
8860020e 2646 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2647
ed1b6cc7 2648 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2649 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2650 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2651 if (!bcn->head_len)
2652 return -EINVAL;
2653 haveinfo = true;
ed1b6cc7
JB		 2654 }
2655
2656 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2657 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2658 bcn->tail_len =
ed1b6cc7 2659 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2660 haveinfo = true;
ed1b6cc7
JB		 2661 }
2662
4c476991
JB		 2663 if (!haveinfo)
2664 return -EINVAL;
3b85875a 2665
9946ecfb 2666 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2667 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2668 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2669 }
2670
2671 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2672 bcn->proberesp_ies =
9946ecfb 2673 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2674 bcn->proberesp_ies_len =
9946ecfb
JM		 2675 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2676 }
2677
2678 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2679 bcn->assocresp_ies =
9946ecfb 2680 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2681 bcn->assocresp_ies_len =
9946ecfb
JM		 2682 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2683 }
2684
00f740e1 2685 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2686 bcn->probe_resp =
00f740e1 2687 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2688 bcn->probe_resp_len =
00f740e1
AN		 2689 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2690 }
2691
8860020e
JB		 2692 return 0;
2693}
2694
46c1dd0c
FF		 2695static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2696 struct cfg80211_ap_settings *params)
2697{
2698 struct wireless_dev *wdev;
2699 bool ret = false;
2700
2701 mutex_lock(&rdev->devlist_mtx);
2702
89a54e48 2703 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2704 if (wdev->iftype != NL80211_IFTYPE_AP &&
2705 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2706 continue;
2707
683b6d3b 2708 if (!wdev->preset_chandef.chan)
46c1dd0c
FF		 2709 continue;
2710
683b6d3b 2711 params->chandef = wdev->preset_chandef;
46c1dd0c
FF		 2712 ret = true;
2713 break;
2714 }
2715
2716 mutex_unlock(&rdev->devlist_mtx);
2717
2718 return ret;
2719}
2720
e39e5b5e
JM		 2721static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2722 enum nl80211_auth_type auth_type,
2723 enum nl80211_commands cmd)
2724{
2725 if (auth_type > NL80211_AUTHTYPE_MAX)
2726 return false;
2727
2728 switch (cmd) {
2729 case NL80211_CMD_AUTHENTICATE:
2730 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2731 auth_type == NL80211_AUTHTYPE_SAE)
2732 return false;
2733 return true;
2734 case NL80211_CMD_CONNECT:
2735 case NL80211_CMD_START_AP:
2736 /* SAE not supported yet */
2737 if (auth_type == NL80211_AUTHTYPE_SAE)
2738 return false;
2739 return true;
2740 default:
2741 return false;
2742 }
2743}
2744
8860020e
JB		 2745static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2746{
2747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2748 struct net_device *dev = info->user_ptr[1];
2749 struct wireless_dev *wdev = dev->ieee80211_ptr;
2750 struct cfg80211_ap_settings params;
2751 int err;
04f39047 2752 u8 radar_detect_width = 0;
8860020e
JB		 2753
2754 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2755 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2756 return -EOPNOTSUPP;
2757
2758 if (!rdev->ops->start_ap)
2759 return -EOPNOTSUPP;
2760
2761 if (wdev->beacon_interval)
2762 return -EALREADY;
2763
2764 memset(&params, 0, sizeof(params));
2765
2766 /* these are required for START_AP */
2767 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2768 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2769 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2770 return -EINVAL;
2771
2772 err = nl80211_parse_beacon(info, &params.beacon);
2773 if (err)
2774 return err;
2775
2776 params.beacon_interval =
2777 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2778 params.dtim_period =
2779 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2780
2781 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2782 if (err)
2783 return err;
2784
2785 /*
2786 * In theory, some of these attributes should be required here
2787 * but since they were not used when the command was originally
2788 * added, keep them optional for old user space programs to let
2789 * them continue to work with drivers that do not need the
2790 * additional information -- drivers must check!
2791 */
2792 if (info->attrs[NL80211_ATTR_SSID]) {
2793 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2794 params.ssid_len =
2795 nla_len(info->attrs[NL80211_ATTR_SSID]);
2796 if (params.ssid_len == 0 ||
2797 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2798 return -EINVAL;
2799 }
2800
2801 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2802 params.hidden_ssid = nla_get_u32(
2803 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2804 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2805 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2806 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2807 return -EINVAL;
2808 }
2809
2810 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2811
2812 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2813 params.auth_type = nla_get_u32(
2814 info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 2815 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2816 NL80211_CMD_START_AP))
8860020e
JB		 2817 return -EINVAL;
2818 } else
2819 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2820
2821 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2822 NL80211_MAX_NR_CIPHER_SUITES);
2823 if (err)
2824 return err;
2825
1b658f11
VT		 2826 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2827 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2828 return -EOPNOTSUPP;
2829 params.inactivity_timeout = nla_get_u16(
2830 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2831 }
2832
53cabad7
JB		 2833 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2834 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2835 return -EINVAL;
2836 params.p2p_ctwindow =
2837 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2838 if (params.p2p_ctwindow > 127)
2839 return -EINVAL;
2840 if (params.p2p_ctwindow != 0 &&
2841 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2842 return -EINVAL;
2843 }
2844
2845 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2846 u8 tmp;
2847
2848 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2849 return -EINVAL;
2850 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2851 if (tmp > 1)
2852 return -EINVAL;
2853 params.p2p_opp_ps = tmp;
2854 if (params.p2p_opp_ps != 0 &&
2855 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2856 return -EINVAL;
2857 }
2858
aa430da4 2859 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 2860 err = nl80211_parse_chandef(rdev, info, &params.chandef);
2861 if (err)
2862 return err;
2863 } else if (wdev->preset_chandef.chan) {
2864 params.chandef = wdev->preset_chandef;
46c1dd0c 2865 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2866 return -EINVAL;
2867
683b6d3b 2868 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
aa430da4
JB		 2869 return -EINVAL;
2870
04f39047
SW		 2871 err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
2872 if (err < 0)
2873 return err;
2874 if (err) {
2875 radar_detect_width = BIT(params.chandef.width);
2876 params.radar_required = true;
2877 }
2878
e4e32459 2879 mutex_lock(&rdev->devlist_mtx);
04f39047
SW		 2880 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
2881 params.chandef.chan,
2882 CHAN_MODE_SHARED,
2883 radar_detect_width);
e4e32459
MK		 2884 mutex_unlock(&rdev->devlist_mtx);
2885
2886 if (err)
2887 return err;
2888
77765eaf
VT		 2889 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
2890 params.acl = parse_acl_data(&rdev->wiphy, info);
2891 if (IS_ERR(params.acl))
2892 return PTR_ERR(params.acl);
2893 }
2894
e35e4d28 2895 err = rdev_start_ap(rdev, dev, &params);
46c1dd0c 2896 if (!err) {
683b6d3b 2897 wdev->preset_chandef = params.chandef;
8860020e 2898 wdev->beacon_interval = params.beacon_interval;
683b6d3b 2899 wdev->channel = params.chandef.chan;
06e191e2
AQ		 2900 wdev->ssid_len = params.ssid_len;
2901 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
46c1dd0c 2902 }
77765eaf
VT		 2903
2904 kfree(params.acl);
2905
56d1893d 2906 return err;
ed1b6cc7
JB		 2907}
2908
8860020e
JB		 2909static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2910{
2911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2912 struct net_device *dev = info->user_ptr[1];
2913 struct wireless_dev *wdev = dev->ieee80211_ptr;
2914 struct cfg80211_beacon_data params;
2915 int err;
2916
2917 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2918 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2919 return -EOPNOTSUPP;
2920
2921 if (!rdev->ops->change_beacon)
2922 return -EOPNOTSUPP;
2923
2924 if (!wdev->beacon_interval)
2925 return -EINVAL;
2926
2927 err = nl80211_parse_beacon(info, &params);
2928 if (err)
2929 return err;
2930
e35e4d28 2931 return rdev_change_beacon(rdev, dev, &params);
8860020e
JB		 2932}
2933
2934static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2935{
4c476991
JB		 2936 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2937 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2938
60771780 2939 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2940}
2941
5727ef1b
JB		 2942static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2943 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2944 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2945 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2946 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2947 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2948 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2949};
2950
eccb8e8f 2951static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2952 enum nl80211_iftype iftype,
eccb8e8f 2953 struct station_parameters *params)
5727ef1b
JB		 2954{
2955 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2956 struct nlattr *nla;
5727ef1b
JB		 2957 int flag;
2958
eccb8e8f
JB		 2959 /*
2960 * Try parsing the new attribute first so userspace
2961 * can specify both for older kernels.
2962 */
2963 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2964 if (nla) {
2965 struct nl80211_sta_flag_update *sta_flags;
2966
2967 sta_flags = nla_data(nla);
2968 params->sta_flags_mask = sta_flags->mask;
2969 params->sta_flags_set = sta_flags->set;
2970 if ((params->sta_flags_mask |
2971 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2972 return -EINVAL;
2973 return 0;
2974 }
2975
2976 /* if present, parse the old attribute */
5727ef1b 2977
eccb8e8f 2978 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2979 if (!nla)
2980 return 0;
2981
2982 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2983 nla, sta_flags_policy))
2984 return -EINVAL;
2985
bdd3ae3d
JB		 2986 /*
2987 * Only allow certain flags for interface types so that
2988 * other attributes are silently ignored. Remember that
2989 * this is backward compatibility code with old userspace
2990 * and shouldn't be hit in other cases anyway.
2991 */
2992 switch (iftype) {
2993 case NL80211_IFTYPE_AP:
2994 case NL80211_IFTYPE_AP_VLAN:
2995 case NL80211_IFTYPE_P2P_GO:
2996 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2997 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2998 BIT(NL80211_STA_FLAG_WME) |
2999 BIT(NL80211_STA_FLAG_MFP);
3000 break;
3001 case NL80211_IFTYPE_P2P_CLIENT:
3002 case NL80211_IFTYPE_STATION:
3003 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3004 BIT(NL80211_STA_FLAG_TDLS_PEER);
3005 break;
3006 case NL80211_IFTYPE_MESH_POINT:
3007 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3008 BIT(NL80211_STA_FLAG_MFP) |
3009 BIT(NL80211_STA_FLAG_AUTHORIZED);
3010 default:
3011 return -EINVAL;
3012 }
5727ef1b 3013
3383b5a6
JB		 3014 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3015 if (flags[flag]) {
eccb8e8f 3016 params->sta_flags_set |= (1<<flag);
5727ef1b 3017
3383b5a6
JB		 3018 /* no longer support new API additions in old API */
3019 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3020 return -EINVAL;
3021 }
3022 }
3023
5727ef1b
JB		 3024 return 0;
3025}
3026
c8dcfd8a
FF		 3027static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3028 int attr)
3029{
3030 struct nlattr *rate;
8eb41c8d
VK		 3031 u32 bitrate;
3032 u16 bitrate_compat;
c8dcfd8a
FF		 3033
3034 rate = nla_nest_start(msg, attr);
3035 if (!rate)
db9c64cf 3036 return false;
c8dcfd8a
FF		 3037
3038 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3039 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 3040 /* report 16-bit bitrate only if we can */
3041 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
db9c64cf
JB		 3042 if (bitrate > 0 &&
3043 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3044 return false;
3045 if (bitrate_compat > 0 &&
3046 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3047 return false;
3048
3049 if (info->flags & RATE_INFO_FLAGS_MCS) {
3050 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3051 return false;
3052 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3053 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3054 return false;
3055 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3056 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3057 return false;
3058 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3059 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3060 return false;
3061 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3062 return false;
3063 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3064 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3065 return false;
3066 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3067 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3068 return false;
3069 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3070 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3071 return false;
3072 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3073 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3074 return false;
3075 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3076 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3077 return false;
3078 }
c8dcfd8a
FF		 3079
3080 nla_nest_end(msg, rate);
3081 return true;
c8dcfd8a
FF		 3082}
3083
15e47304 3084static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
66266b3a
JL		 3085 int flags,
3086 struct cfg80211_registered_device *rdev,
3087 struct net_device *dev,
98b62183 3088 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 3089{
3090 void *hdr;
f4263c98 3091 struct nlattr *sinfoattr, *bss_param;
fd5b74dc 3092
15e47304 3093 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
fd5b74dc
JB		 3094 if (!hdr)
3095 return -1;
3096
9360ffd1
DM		 3097 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3098 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3099 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3100 goto nla_put_failure;
f5ea9120 3101
2ec600d6
LCC		 3102 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3103 if (!sinfoattr)
fd5b74dc 3104 goto nla_put_failure;
9360ffd1
DM		 3105 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3106 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3107 sinfo->connected_time))
3108 goto nla_put_failure;
3109 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3110 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3111 sinfo->inactive_time))
3112 goto nla_put_failure;
42745e03
VK		 3113 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3114 STATION_INFO_RX_BYTES64)) &&
9360ffd1 3115 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
42745e03 3116 (u32)sinfo->rx_bytes))
9360ffd1 3117 goto nla_put_failure;
42745e03
VK		 3118 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3119 NL80211_STA_INFO_TX_BYTES64)) &&
9360ffd1 3120 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
42745e03
VK		 3121 (u32)sinfo->tx_bytes))
3122 goto nla_put_failure;
3123 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3124 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3125 sinfo->rx_bytes))
3126 goto nla_put_failure;
3127 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3128 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
9360ffd1
DM		 3129 sinfo->tx_bytes))
3130 goto nla_put_failure;
3131 if ((sinfo->filled & STATION_INFO_LLID) &&
3132 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3133 goto nla_put_failure;
3134 if ((sinfo->filled & STATION_INFO_PLID) &&
3135 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3136 goto nla_put_failure;
3137 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3138 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3139 sinfo->plink_state))
3140 goto nla_put_failure;
66266b3a
JL		 3141 switch (rdev->wiphy.signal_type) {
3142 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 3143 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3144 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3145 sinfo->signal))
3146 goto nla_put_failure;
3147 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3148 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3149 sinfo->signal_avg))
3150 goto nla_put_failure;
66266b3a
JL		 3151 break;
3152 default:
3153 break;
3154 }
420e7fab 3155 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 3156 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3157 NL80211_STA_INFO_TX_BITRATE))
3158 goto nla_put_failure;
3159 }
3160 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3161 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3162 NL80211_STA_INFO_RX_BITRATE))
420e7fab 3163 goto nla_put_failure;
420e7fab 3164 }
9360ffd1
DM		 3165 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3166 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3167 sinfo->rx_packets))
3168 goto nla_put_failure;
3169 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3170 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3171 sinfo->tx_packets))
3172 goto nla_put_failure;
3173 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3174 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3175 sinfo->tx_retries))
3176 goto nla_put_failure;
3177 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3178 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3179 sinfo->tx_failed))
3180 goto nla_put_failure;
3181 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3182 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3183 sinfo->beacon_loss_count))
3184 goto nla_put_failure;
3b1c5a53
MP		 3185 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3186 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3187 sinfo->local_pm))
3188 goto nla_put_failure;
3189 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3190 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3191 sinfo->peer_pm))
3192 goto nla_put_failure;
3193 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3194 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3195 sinfo->nonpeer_pm))
3196 goto nla_put_failure;
f4263c98
PS		 3197 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3198 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3199 if (!bss_param)
3200 goto nla_put_failure;
3201
9360ffd1
DM		 3202 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3203 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3204 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3205 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3206 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3207 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3208 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3209 sinfo->bss_param.dtim_period) ||
3210 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3211 sinfo->bss_param.beacon_interval))
3212 goto nla_put_failure;
f4263c98
PS		 3213
3214 nla_nest_end(msg, bss_param);
3215 }
9360ffd1
DM		 3216 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3217 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3218 sizeof(struct nl80211_sta_flag_update),
3219 &sinfo->sta_flags))
3220 goto nla_put_failure;
7eab0f64
JL		 3221 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3222 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3223 sinfo->t_offset))
3224 goto nla_put_failure;
2ec600d6 3225 nla_nest_end(msg, sinfoattr);
fd5b74dc 3226
9360ffd1
DM		 3227 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3228 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3229 sinfo->assoc_req_ies))
3230 goto nla_put_failure;
50d3dfb7 3231
fd5b74dc
JB		 3232 return genlmsg_end(msg, hdr);
3233
3234 nla_put_failure:
bc3ed28c
TG		 3235 genlmsg_cancel(msg, hdr);
3236 return -EMSGSIZE;
fd5b74dc
JB		 3237}
3238
2ec600d6 3239static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 3240 struct netlink_callback *cb)
2ec600d6 3241{
2ec600d6
LCC		 3242 struct station_info sinfo;
3243 struct cfg80211_registered_device *dev;
bba95fef 3244 struct net_device *netdev;
2ec600d6 3245 u8 mac_addr[ETH_ALEN];
bba95fef 3246 int sta_idx = cb->args[1];
2ec600d6 3247 int err;
2ec600d6 3248
67748893
JB		 3249 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3250 if (err)
3251 return err;
bba95fef
JB		 3252
3253 if (!dev->ops->dump_station) {
eec60b03 3254 err = -EOPNOTSUPP;
bba95fef
JB		 3255 goto out_err;
3256 }
3257
bba95fef 3258 while (1) {
f612cedf 3259 memset(&sinfo, 0, sizeof(sinfo));
e35e4d28
HG		 3260 err = rdev_dump_station(dev, netdev, sta_idx,
3261 mac_addr, &sinfo);
bba95fef
JB		 3262 if (err == -ENOENT)
3263 break;
3264 if (err)
3b85875a 3265 goto out_err;
bba95fef
JB		 3266
3267 if (nl80211_send_station(skb,
15e47304 3268 NETLINK_CB(cb->skb).portid,
bba95fef 3269 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 3270 dev, netdev, mac_addr,
bba95fef
JB		 3271 &sinfo) < 0)
3272 goto out;
3273
3274 sta_idx++;
3275 }
3276
3277
3278 out:
3279 cb->args[1] = sta_idx;
3280 err = skb->len;
bba95fef 3281 out_err:
67748893 3282 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 3283
3284 return err;
2ec600d6 3285}
fd5b74dc 3286
5727ef1b
JB		 3287static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3288{
4c476991
JB		 3289 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3290 struct net_device *dev = info->user_ptr[1];
2ec600d6 3291 struct station_info sinfo;
fd5b74dc
JB		 3292 struct sk_buff *msg;
3293 u8 *mac_addr = NULL;
4c476991 3294 int err;
fd5b74dc 3295
2ec600d6 3296 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 3297
3298 if (!info->attrs[NL80211_ATTR_MAC])
3299 return -EINVAL;
3300
3301 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3302
4c476991
JB		 3303 if (!rdev->ops->get_station)
3304 return -EOPNOTSUPP;
3b85875a 3305
e35e4d28 3306 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
fd5b74dc 3307 if (err)
4c476991 3308 return err;
2ec600d6 3309
fd2120ca 3310 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 3311 if (!msg)
4c476991 3312 return -ENOMEM;
fd5b74dc 3313
15e47304 3314 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
66266b3a 3315 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 3316 nlmsg_free(msg);
3317 return -ENOBUFS;
3318 }
3b85875a 3319
4c476991 3320 return genlmsg_reply(msg, info);
5727ef1b
JB		 3321}
3322
3323/*
c258d2de 3324 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 3325 */
80b99899
JB		 3326static struct net_device *get_vlan(struct genl_info *info,
3327 struct cfg80211_registered_device *rdev)
5727ef1b 3328{
463d0183 3329 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 3330 struct net_device *v;
3331 int ret;
3332
3333 if (!vlanattr)
3334 return NULL;
3335
3336 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3337 if (!v)
3338 return ERR_PTR(-ENODEV);
3339
3340 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3341 ret = -EINVAL;
3342 goto error;
5727ef1b 3343 }
80b99899
JB		 3344
3345 if (!netif_running(v)) {
3346 ret = -ENETDOWN;
3347 goto error;
3348 }
3349
3350 return v;
3351 error:
3352 dev_put(v);
3353 return ERR_PTR(ret);
5727ef1b
JB		 3354}
3355
df881293
JM		 3356static struct nla_policy
3357nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3358 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3359 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3360};
3361
3362static int nl80211_set_station_tdls(struct genl_info *info,
3363 struct station_parameters *params)
3364{
df881293
JM		 3365 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3366 struct nlattr *nla;
3367 int err;
3368
df881293
JM		 3369 /* Dummy STA entry gets updated once the peer capabilities are known */
3370 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3371 params->ht_capa =
3372 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3373 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3374 params->vht_capa =
3375 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3376
3377 /* parse WME attributes if present */
3378 if (!info->attrs[NL80211_ATTR_STA_WME])
3379 return 0;
3380
3381 nla = info->attrs[NL80211_ATTR_STA_WME];
3382 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3383 nl80211_sta_wme_policy);
3384 if (err)
3385 return err;
3386
3387 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3388 params->uapsd_queues = nla_get_u8(
3389 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3390 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3391 return -EINVAL;
3392
3393 if (tb[NL80211_STA_WME_MAX_SP])
3394 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3395
3396 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3397 return -EINVAL;
3398
3399 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3400
3401 return 0;
3402}
3403
5727ef1b
JB		 3404static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3405{
4c476991 3406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3407 int err;
4c476991 3408 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3409 struct station_parameters params;
3410 u8 *mac_addr = NULL;
3411
3412 memset(&params, 0, sizeof(params));
3413
3414 params.listen_interval = -1;
3415
3416 if (info->attrs[NL80211_ATTR_STA_AID])
3417 return -EINVAL;
3418
3419 if (!info->attrs[NL80211_ATTR_MAC])
3420 return -EINVAL;
3421
3422 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3423
3424 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3425 params.supported_rates =
3426 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3427 params.supported_rates_len =
3428 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3429 }
3430
9d62a986
JM		 3431 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3432 params.capability =
3433 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3434 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3435 }
3436
3437 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3438 params.ext_capab =
3439 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3440 params.ext_capab_len =
3441 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3442 }
3443
df881293 3444 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3445 return -EINVAL;
36aedc90 3446
bdd90d5e
JB		 3447 if (!rdev->ops->change_station)
3448 return -EOPNOTSUPP;
3449
bdd3ae3d 3450 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3451 return -EINVAL;
3452
f8bacc21 3453 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3454 params.plink_action =
f8bacc21
JB		 3455 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3456 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3457 return -EINVAL;
3458 }
2ec600d6 3459
f8bacc21 3460 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3461 params.plink_state =
f8bacc21
JB		 3462 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3463 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3464 return -EINVAL;
3465 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3466 }
9c3990aa 3467
3b1c5a53
MP		 3468 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3469 enum nl80211_mesh_power_mode pm = nla_get_u32(
3470 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3471
3472 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3473 pm > NL80211_MESH_POWER_MAX)
3474 return -EINVAL;
3475
3476 params.local_pm = pm;
3477 }
3478
a97f4424
JB		 3479 switch (dev->ieee80211_ptr->iftype) {
3480 case NL80211_IFTYPE_AP:
3481 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3482 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3483 /* disallow mesh-specific things */
3484 if (params.plink_action)
bdd90d5e 3485 return -EINVAL;
3b1c5a53
MP		 3486 if (params.local_pm)
3487 return -EINVAL;
f8bacc21
JB		 3488 if (params.sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3489 return -EINVAL;
bdd90d5e
JB		 3490
3491 /* TDLS can't be set, ... */
3492 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3493 return -EINVAL;
3494 /*
3495 * ... but don't bother the driver with it. This works around
3496 * a hostapd/wpa_supplicant issue -- it always includes the
3497 * TLDS_PEER flag in the mask even for AP mode.
3498 */
3499 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3500
3501 /* accept only the listed bits */
3502 if (params.sta_flags_mask &
3503 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
d582cffb
JB		 3504 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3505 BIT(NL80211_STA_FLAG_ASSOCIATED) |
bdd90d5e
JB		 3506 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3507 BIT(NL80211_STA_FLAG_WME) |
3508 BIT(NL80211_STA_FLAG_MFP)))
3509 return -EINVAL;
3510
d582cffb
JB		 3511 /* but authenticated/associated only if driver handles it */
3512 if (!(rdev->wiphy.features &
3513 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3514 params.sta_flags_mask &
3515 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3516 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3517 return -EINVAL;
3518
ba23d206
JB		 3519 /* reject other things that can't change */
3520 if (params.supported_rates)
3521 return -EINVAL;
9d62a986
JM		 3522 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3523 return -EINVAL;
3524 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3525 return -EINVAL;
df881293
JM		 3526 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3527 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3528 return -EINVAL;
ba23d206 3529
bdd90d5e
JB		 3530 /* must be last in here for error handling */
3531 params.vlan = get_vlan(info, rdev);
3532 if (IS_ERR(params.vlan))
3533 return PTR_ERR(params.vlan);
a97f4424 3534 break;
074ac8df 3535 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3536 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3537 /*
3538 * Don't allow userspace to change the TDLS_PEER flag,
3539 * but silently ignore attempts to change it since we
3540 * don't have state here to verify that it doesn't try
3541 * to change the flag.
3542 */
3543 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
df881293
JM		 3544 /* Include parameters for TDLS peer (driver will check) */
3545 err = nl80211_set_station_tdls(info, &params);
3546 if (err)
3547 return err;
3548 /* disallow things sta doesn't support */
3549 if (params.plink_action)
3550 return -EINVAL;
3551 if (params.local_pm)
3552 return -EINVAL;
f8bacc21
JB		 3553 if (params.sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3554 return -EINVAL;
df881293
JM		 3555 /* reject any changes other than AUTHORIZED or WME (for TDLS) */
3556 if (params.sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3557 BIT(NL80211_STA_FLAG_WME)))
3558 return -EINVAL;
3559 break;
267335d6
AQ		 3560 case NL80211_IFTYPE_ADHOC:
3561 /* disallow things sta doesn't support */
3562 if (params.plink_action)
3563 return -EINVAL;
3b1c5a53
MP		 3564 if (params.local_pm)
3565 return -EINVAL;
f8bacc21
JB		 3566 if (params.sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3567 return -EINVAL;
df881293
JM		 3568 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3569 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3570 return -EINVAL;
bdd90d5e
JB		 3571 /* reject any changes other than AUTHORIZED */
3572 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3573 return -EINVAL;
a97f4424
JB		 3574 break;
3575 case NL80211_IFTYPE_MESH_POINT:
3576 /* disallow things mesh doesn't support */
3577 if (params.vlan)
bdd90d5e 3578 return -EINVAL;
ba23d206 3579 if (params.supported_rates)
bdd90d5e 3580 return -EINVAL;
9d62a986
JM		 3581 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3582 return -EINVAL;
3583 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3584 return -EINVAL;
df881293
JM		 3585 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3586 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3587 return -EINVAL;
bdd90d5e
JB		 3588 /*
3589 * No special handling for TDLS here -- the userspace
3590 * mesh code doesn't have this bug.
3591 */
b39c48fa
JC		 3592 if (params.sta_flags_mask &
3593 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3594 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3595 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3596 return -EINVAL;
a97f4424
JB		 3597 break;
3598 default:
bdd90d5e 3599 return -EOPNOTSUPP;
034d655e
JB		 3600 }
3601
bdd90d5e 3602 /* be aware of params.vlan when changing code here */
5727ef1b 3603
e35e4d28 3604 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3605
5727ef1b
JB		 3606 if (params.vlan)
3607 dev_put(params.vlan);
3b85875a 3608
5727ef1b
JB		 3609 return err;
3610}
3611
3612static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3613{
4c476991 3614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3615 int err;
4c476991 3616 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3617 struct station_parameters params;
3618 u8 *mac_addr = NULL;
3619
3620 memset(&params, 0, sizeof(params));
3621
984c311b
JB		 3622 if (!rdev->ops->add_station)
3623 return -EOPNOTSUPP;
3624
5727ef1b
JB		 3625 if (!info->attrs[NL80211_ATTR_MAC])
3626 return -EINVAL;
3627
5727ef1b
JB		 3628 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3629 return -EINVAL;
3630
3631 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3632 return -EINVAL;
3633
0e956c13
TLSC		 3634 if (!info->attrs[NL80211_ATTR_STA_AID])
3635 return -EINVAL;
3636
5727ef1b
JB		 3637 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3638 params.supported_rates =
3639 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3640 params.supported_rates_len =
3641 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3642 params.listen_interval =
3643 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3644
0e956c13
TLSC		 3645 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3646 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3647 return -EINVAL;
51b50fbe 3648
9d62a986
JM		 3649 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3650 params.capability =
3651 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3652 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3653 }
3654
3655 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3656 params.ext_capab =
3657 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3658 params.ext_capab_len =
3659 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3660 }
3661
36aedc90
JM		 3662 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3663 params.ht_capa =
3664 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3665
f461be3e
MP		 3666 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3667 params.vht_capa =
3668 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3669
f8bacc21 3670 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 3671 params.plink_action =
f8bacc21
JB		 3672 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3673 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3674 return -EINVAL;
3675 }
96b78dff 3676
984c311b
JB		 3677 if (info->attrs[NL80211_ATTR_STA_WME]) {
3678 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3679 struct nlattr *nla;
3680
3681 nla = info->attrs[NL80211_ATTR_STA_WME];
3682 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3683 nl80211_sta_wme_policy);
3684 if (err)
3685 return err;
3686
3687 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3688 params.uapsd_queues =
3689 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3690 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3691 return -EINVAL;
3692
3693 if (tb[NL80211_STA_WME_MAX_SP])
3694 params.max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3695
3696 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3697 return -EINVAL;
3698
3699 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3700 }
bdd90d5e 3701
bdd3ae3d 3702 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3703 return -EINVAL;
3704
bdd90d5e
JB		 3705 switch (dev->ieee80211_ptr->iftype) {
3706 case NL80211_IFTYPE_AP:
3707 case NL80211_IFTYPE_AP_VLAN:
3708 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 3709 /* ignore WME attributes if iface/sta is not capable */
3710 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
3711 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
3712 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 3713
bdd90d5e
JB		 3714 /* TDLS peers cannot be added */
3715 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3716 return -EINVAL;
bdd90d5e
JB		 3717 /* but don't bother the driver with it */
3718 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3719
d582cffb
JB		 3720 /* allow authenticated/associated only if driver handles it */
3721 if (!(rdev->wiphy.features &
3722 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3723 params.sta_flags_mask &
3724 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3725 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3726 return -EINVAL;
3727
bdd90d5e
JB		 3728 /* must be last in here for error handling */
3729 params.vlan = get_vlan(info, rdev);
3730 if (IS_ERR(params.vlan))
3731 return PTR_ERR(params.vlan);
3732 break;
3733 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 3734 /* ignore uAPSD data */
3735 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
3736
d582cffb
JB		 3737 /* associated is disallowed */
3738 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3739 return -EINVAL;
bdd90d5e
JB		 3740 /* TDLS peers cannot be added */
3741 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3742 return -EINVAL;
3743 break;
3744 case NL80211_IFTYPE_STATION:
984c311b
JB		 3745 /* ignore uAPSD data */
3746 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
3747
d582cffb
JB		 3748 /* associated is disallowed */
3749 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3750 return -EINVAL;
bdd90d5e
JB		 3751 /* Only TDLS peers can be added */
3752 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3753 return -EINVAL;
3754 /* Can only add if TDLS ... */
3755 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3756 return -EOPNOTSUPP;
3757 /* ... with external setup is supported */
3758 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3759 return -EOPNOTSUPP;
3760 break;
3761 default:
3762 return -EOPNOTSUPP;
c75786c9
EP		 3763 }
3764
bdd90d5e 3765 /* be aware of params.vlan when changing code here */
5727ef1b 3766
e35e4d28 3767 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 3768
5727ef1b
JB		 3769 if (params.vlan)
3770 dev_put(params.vlan);
5727ef1b
JB		 3771 return err;
3772}
3773
3774static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3775{
4c476991
JB		 3776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3777 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3778 u8 *mac_addr = NULL;
3779
3780 if (info->attrs[NL80211_ATTR_MAC])
3781 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3782
e80cf853 3783 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3784 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3785 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3786 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3787 return -EINVAL;
5727ef1b 3788
4c476991
JB		 3789 if (!rdev->ops->del_station)
3790 return -EOPNOTSUPP;
3b85875a 3791
e35e4d28 3792 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 3793}
3794
15e47304 3795static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3796 int flags, struct net_device *dev,
3797 u8 *dst, u8 *next_hop,
3798 struct mpath_info *pinfo)
3799{
3800 void *hdr;
3801 struct nlattr *pinfoattr;
3802
15e47304 3803 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3804 if (!hdr)
3805 return -1;
3806
9360ffd1
DM		 3807 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3808 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3809 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3810 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3811 goto nla_put_failure;
f5ea9120 3812
2ec600d6
LCC		 3813 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3814 if (!pinfoattr)
3815 goto nla_put_failure;
9360ffd1
DM		 3816 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3817 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3818 pinfo->frame_qlen))
3819 goto nla_put_failure;
3820 if (((pinfo->filled & MPATH_INFO_SN) &&
3821 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3822 ((pinfo->filled & MPATH_INFO_METRIC) &&
3823 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3824 pinfo->metric)) ||
3825 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3826 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3827 pinfo->exptime)) ||
3828 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3829 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3830 pinfo->flags)) ||
3831 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3832 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3833 pinfo->discovery_timeout)) ||
3834 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3835 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3836 pinfo->discovery_retries)))
3837 goto nla_put_failure;
2ec600d6
LCC		 3838
3839 nla_nest_end(msg, pinfoattr);
3840
3841 return genlmsg_end(msg, hdr);
3842
3843 nla_put_failure:
bc3ed28c
TG		 3844 genlmsg_cancel(msg, hdr);
3845 return -EMSGSIZE;
2ec600d6
LCC		 3846}
3847
3848static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3849 struct netlink_callback *cb)
2ec600d6 3850{
2ec600d6
LCC		 3851 struct mpath_info pinfo;
3852 struct cfg80211_registered_device *dev;
bba95fef 3853 struct net_device *netdev;
2ec600d6
LCC		 3854 u8 dst[ETH_ALEN];
3855 u8 next_hop[ETH_ALEN];
bba95fef 3856 int path_idx = cb->args[1];
2ec600d6 3857 int err;
2ec600d6 3858
67748893
JB		 3859 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3860 if (err)
3861 return err;
bba95fef
JB		 3862
3863 if (!dev->ops->dump_mpath) {
eec60b03 3864 err = -EOPNOTSUPP;
bba95fef
JB		 3865 goto out_err;
3866 }
3867
eec60b03
JM		 3868 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3869 err = -EOPNOTSUPP;
0448b5fc 3870 goto out_err;
eec60b03
JM		 3871 }
3872
bba95fef 3873 while (1) {
e35e4d28
HG		 3874 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3875 &pinfo);
bba95fef 3876 if (err == -ENOENT)
2ec600d6 3877 break;
bba95fef 3878 if (err)
3b85875a 3879 goto out_err;
2ec600d6 3880
15e47304 3881 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3882 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3883 netdev, dst, next_hop,
3884 &pinfo) < 0)
3885 goto out;
2ec600d6 3886
bba95fef 3887 path_idx++;
2ec600d6 3888 }
2ec600d6 3889
2ec600d6 3890
bba95fef
JB		 3891 out:
3892 cb->args[1] = path_idx;
3893 err = skb->len;
bba95fef 3894 out_err:
67748893 3895 nl80211_finish_netdev_dump(dev);
bba95fef 3896 return err;
2ec600d6
LCC		 3897}
3898
3899static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3900{
4c476991 3901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3902 int err;
4c476991 3903 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3904 struct mpath_info pinfo;
3905 struct sk_buff *msg;
3906 u8 *dst = NULL;
3907 u8 next_hop[ETH_ALEN];
3908
3909 memset(&pinfo, 0, sizeof(pinfo));
3910
3911 if (!info->attrs[NL80211_ATTR_MAC])
3912 return -EINVAL;
3913
3914 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3915
4c476991
JB		 3916 if (!rdev->ops->get_mpath)
3917 return -EOPNOTSUPP;
2ec600d6 3918
4c476991
JB		 3919 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3920 return -EOPNOTSUPP;
eec60b03 3921
e35e4d28 3922 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 3923 if (err)
4c476991 3924 return err;
2ec600d6 3925
fd2120ca 3926 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3927 if (!msg)
4c476991 3928 return -ENOMEM;
2ec600d6 3929
15e47304 3930 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3931 dev, dst, next_hop, &pinfo) < 0) {
3932 nlmsg_free(msg);
3933 return -ENOBUFS;
3934 }
3b85875a 3935
4c476991 3936 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3937}
3938
3939static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3940{
4c476991
JB		 3941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3942 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3943 u8 *dst = NULL;
3944 u8 *next_hop = NULL;
3945
3946 if (!info->attrs[NL80211_ATTR_MAC])
3947 return -EINVAL;
3948
3949 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3950 return -EINVAL;
3951
3952 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3953 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3954
4c476991
JB		 3955 if (!rdev->ops->change_mpath)
3956 return -EOPNOTSUPP;
35a8efe1 3957
4c476991
JB		 3958 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3959 return -EOPNOTSUPP;
2ec600d6 3960
e35e4d28 3961 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 3962}
4c476991 3963
2ec600d6
LCC		 3964static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3965{
4c476991
JB		 3966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3967 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3968 u8 *dst = NULL;
3969 u8 *next_hop = NULL;
3970
3971 if (!info->attrs[NL80211_ATTR_MAC])
3972 return -EINVAL;
3973
3974 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3975 return -EINVAL;
3976
3977 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3978 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3979
4c476991
JB		 3980 if (!rdev->ops->add_mpath)
3981 return -EOPNOTSUPP;
35a8efe1 3982
4c476991
JB		 3983 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3984 return -EOPNOTSUPP;
2ec600d6 3985
e35e4d28 3986 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 3987}
3988
3989static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3990{
4c476991
JB		 3991 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3992 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3993 u8 *dst = NULL;
3994
3995 if (info->attrs[NL80211_ATTR_MAC])
3996 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3997
4c476991
JB		 3998 if (!rdev->ops->del_mpath)
3999 return -EOPNOTSUPP;
3b85875a 4000
e35e4d28 4001 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 4002}
4003
9f1ba906
JM		 4004static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4005{
4c476991
JB		 4006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4007 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 4008 struct bss_parameters params;
4009
4010 memset(&params, 0, sizeof(params));
4011 /* default to not changing parameters */
4012 params.use_cts_prot = -1;
4013 params.use_short_preamble = -1;
4014 params.use_short_slot_time = -1;
fd8aaaf3 4015 params.ap_isolate = -1;
50b12f59 4016 params.ht_opmode = -1;
53cabad7
JB		 4017 params.p2p_ctwindow = -1;
4018 params.p2p_opp_ps = -1;
9f1ba906
JM		 4019
4020 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4021 params.use_cts_prot =
4022 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4023 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4024 params.use_short_preamble =
4025 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4026 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4027 params.use_short_slot_time =
4028 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4029 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4030 params.basic_rates =
4031 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4032 params.basic_rates_len =
4033 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4034 }
fd8aaaf3
FF		 4035 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4036 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4037 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4038 params.ht_opmode =
4039 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4040
53cabad7
JB		 4041 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4042 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4043 return -EINVAL;
4044 params.p2p_ctwindow =
4045 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4046 if (params.p2p_ctwindow < 0)
4047 return -EINVAL;
4048 if (params.p2p_ctwindow != 0 &&
4049 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4050 return -EINVAL;
4051 }
4052
4053 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4054 u8 tmp;
4055
4056 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4057 return -EINVAL;
4058 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4059 if (tmp > 1)
4060 return -EINVAL;
4061 params.p2p_opp_ps = tmp;
4062 if (params.p2p_opp_ps &&
4063 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4064 return -EINVAL;
4065 }
4066
4c476991
JB		 4067 if (!rdev->ops->change_bss)
4068 return -EOPNOTSUPP;
9f1ba906 4069
074ac8df 4070 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4071 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4072 return -EOPNOTSUPP;
3b85875a 4073
e35e4d28 4074 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4075}
4076
b54452b0 4077static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4078 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4079 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4080 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4081 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4082 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4083 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4084};
4085
4086static int parse_reg_rule(struct nlattr *tb[],
4087 struct ieee80211_reg_rule *reg_rule)
4088{
4089 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4090 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4091
4092 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4093 return -EINVAL;
4094 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4095 return -EINVAL;
4096 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4097 return -EINVAL;
4098 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4099 return -EINVAL;
4100 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4101 return -EINVAL;
4102
4103 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4104
4105 freq_range->start_freq_khz =
4106 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4107 freq_range->end_freq_khz =
4108 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4109 freq_range->max_bandwidth_khz =
4110 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4111
4112 power_rule->max_eirp =
4113 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4114
4115 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4116 power_rule->max_antenna_gain =
4117 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4118
4119 return 0;
4120}
4121
4122static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4123{
4124 int r;
4125 char *data = NULL;
57b5ce07 4126 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4127
80778f18
LR		 4128 /*
4129 * You should only get this when cfg80211 hasn't yet initialized
4130 * completely when built-in to the kernel right between the time
4131 * window between nl80211_init() and regulatory_init(), if that is
4132 * even possible.
4133 */
458f4f9e 4134 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4135 return -EINPROGRESS;
80778f18 4136
fe33eb39
LR		 4137 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4138 return -EINVAL;
b2e1b302
LR		 4139
4140 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4141
57b5ce07
LR		 4142 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4143 user_reg_hint_type =
4144 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4145 else
4146 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4147
4148 switch (user_reg_hint_type) {
4149 case NL80211_USER_REG_HINT_USER:
4150 case NL80211_USER_REG_HINT_CELL_BASE:
4151 break;
4152 default:
4153 return -EINVAL;
4154 }
4155
4156 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4157
b2e1b302
LR		 4158 return r;
4159}
4160
24bdd9f4 4161static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4162 struct genl_info *info)
93da9cc1 4163{
4c476991 4164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4165 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4166 struct wireless_dev *wdev = dev->ieee80211_ptr;
4167 struct mesh_config cur_params;
4168 int err = 0;
93da9cc1 4169 void *hdr;
4170 struct nlattr *pinfoattr;
4171 struct sk_buff *msg;
4172
29cbe68c
JB		 4173 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4174 return -EOPNOTSUPP;
4175
24bdd9f4 4176 if (!rdev->ops->get_mesh_config)
4c476991 4177 return -EOPNOTSUPP;
f3f92586 4178
29cbe68c
JB		 4179 wdev_lock(wdev);
4180 /* If not connected, get default parameters */
4181 if (!wdev->mesh_id_len)
4182 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4183 else
e35e4d28 4184 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4185 wdev_unlock(wdev);
4186
93da9cc1 4187 if (err)
4c476991 4188 return err;
93da9cc1 4189
4190 /* Draw up a netlink message to send back */
fd2120ca 4191 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4192 if (!msg)
4193 return -ENOMEM;
15e47304 4194 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4195 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4196 if (!hdr)
efe1cf0c 4197 goto out;
24bdd9f4 4198 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4199 if (!pinfoattr)
4200 goto nla_put_failure;
9360ffd1
DM		 4201 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4202 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4203 cur_params.dot11MeshRetryTimeout) ||
4204 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4205 cur_params.dot11MeshConfirmTimeout) ||
4206 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4207 cur_params.dot11MeshHoldingTimeout) ||
4208 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4209 cur_params.dot11MeshMaxPeerLinks) ||
4210 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4211 cur_params.dot11MeshMaxRetries) ||
4212 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4213 cur_params.dot11MeshTTL) ||
4214 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4215 cur_params.element_ttl) ||
4216 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4217 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4218 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4219 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4220 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4221 cur_params.dot11MeshHWMPmaxPREQretries) ||
4222 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4223 cur_params.path_refresh_time) ||
4224 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4225 cur_params.min_discovery_timeout) ||
4226 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4227 cur_params.dot11MeshHWMPactivePathTimeout) ||
4228 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4229 cur_params.dot11MeshHWMPpreqMinInterval) ||
4230 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4231 cur_params.dot11MeshHWMPperrMinInterval) ||
4232 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4233 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4234 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4235 cur_params.dot11MeshHWMPRootMode) ||
4236 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4237 cur_params.dot11MeshHWMPRannInterval) ||
4238 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4239 cur_params.dot11MeshGateAnnouncementProtocol) ||
4240 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4241 cur_params.dot11MeshForwarding) ||
4242 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4243 cur_params.rssi_threshold) ||
4244 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4245 cur_params.ht_opmode) ||
4246 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4247 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4248 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4249 cur_params.dot11MeshHWMProotInterval) ||
4250 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4251 cur_params.dot11MeshHWMPconfirmationInterval) ||
4252 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4253 cur_params.power_mode) ||
4254 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4255 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 4256 goto nla_put_failure;
93da9cc1 4257 nla_nest_end(msg, pinfoattr);
4258 genlmsg_end(msg, hdr);
4c476991 4259 return genlmsg_reply(msg, info);
93da9cc1 4260
3b85875a 4261 nla_put_failure:
93da9cc1 4262 genlmsg_cancel(msg, hdr);
efe1cf0c 4263 out:
d080e275 4264 nlmsg_free(msg);
4c476991 4265 return -ENOBUFS;
93da9cc1 4266}
4267
b54452b0 4268static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4269 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4270 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4271 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4272 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4273 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4274 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4275 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4276 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4277 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4278 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4279 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4280 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4281 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4282 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4283 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4284 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4285 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4286 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4287 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4288 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4289 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4290 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4291 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4292 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4293 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4294 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4295 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4296};
4297
c80d545d
JC		 4298static const struct nla_policy
4299 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4300 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4301 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4302 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4303 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 4304 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4305 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4306 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4307};
4308
24bdd9f4 4309static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4310 struct mesh_config *cfg,
4311 u32 *mask_out)
93da9cc1 4312{
93da9cc1 4313 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4314 u32 mask = 0;
93da9cc1 4315
ea54fba2
MP		 4316#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4317do { \
4318 if (tb[attr]) { \
4319 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4320 return -EINVAL; \
4321 cfg->param = fn(tb[attr]); \
4322 mask |= (1 << (attr - 1)); \
4323 } \
4324} while (0)
bd90fdcc
JB		 4325
4326
24bdd9f4 4327 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4328 return -EINVAL;
4329 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4330 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4331 nl80211_meshconf_params_policy))
93da9cc1 4332 return -EINVAL;
4333
93da9cc1 4334 /* This makes sure that there aren't more than 32 mesh config
4335 * parameters (otherwise our bitfield scheme would not work.) */
4336 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4337
4338 /* Fill in the params struct */
ea54fba2 4339 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4340 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4341 nla_get_u16);
ea54fba2 4342 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4343 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4344 nla_get_u16);
ea54fba2 4345 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4346 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4347 nla_get_u16);
ea54fba2 4348 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4349 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4350 nla_get_u16);
ea54fba2 4351 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4352 mask, NL80211_MESHCONF_MAX_RETRIES,
4353 nla_get_u8);
ea54fba2 4354 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4355 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4356 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4357 mask, NL80211_MESHCONF_ELEMENT_TTL,
4358 nla_get_u8);
ea54fba2 4359 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4360 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4361 nla_get_u8);
ea54fba2
MP		 4362 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4363 1, 255, mask,
a4f606ea
CYY		 4364 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4365 nla_get_u32);
ea54fba2 4366 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4367 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4368 nla_get_u8);
ea54fba2 4369 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4370 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4371 nla_get_u32);
ea54fba2 4372 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4373 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4374 nla_get_u16);
ea54fba2
MP		 4375 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4376 1, 65535, mask,
a4f606ea
CYY		 4377 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4378 nla_get_u32);
93da9cc1 4379 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4380 1, 65535, mask,
4381 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4382 nla_get_u16);
dca7e943 4383 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4384 1, 65535, mask,
4385 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4386 nla_get_u16);
93da9cc1 4387 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4388 dot11MeshHWMPnetDiameterTraversalTime,
4389 1, 65535, mask,
a4f606ea
CYY		 4390 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4391 nla_get_u16);
ea54fba2
MP		 4392 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4393 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4394 nla_get_u8);
4395 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4396 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4397 nla_get_u16);
63c5723b 4398 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4399 dot11MeshGateAnnouncementProtocol, 0, 1,
4400 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4401 nla_get_u8);
ea54fba2 4402 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4403 mask, NL80211_MESHCONF_FORWARDING,
4404 nla_get_u8);
ea54fba2 4405 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4406 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4407 nla_get_u32);
ea54fba2 4408 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4409 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4410 nla_get_u16);
4411 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4412 1, 65535, mask,
ac1073a6
CYY		 4413 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4414 nla_get_u32);
ea54fba2 4415 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4416 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4417 nla_get_u16);
4418 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4419 dot11MeshHWMPconfirmationInterval,
4420 1, 65535, mask,
728b19e5 4421 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4422 nla_get_u16);
3b1c5a53
MP		 4423 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4424 NL80211_MESH_POWER_ACTIVE,
4425 NL80211_MESH_POWER_MAX,
4426 mask, NL80211_MESHCONF_POWER_MODE,
4427 nla_get_u32);
4428 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4429 0, 65535, mask,
4430 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4431 if (mask_out)
4432 *mask_out = mask;
c80d545d 4433
bd90fdcc
JB		 4434 return 0;
4435
4436#undef FILL_IN_MESH_PARAM_IF_SET
4437}
4438
c80d545d
JC		 4439static int nl80211_parse_mesh_setup(struct genl_info *info,
4440 struct mesh_setup *setup)
4441{
4442 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4443
4444 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4445 return -EINVAL;
4446 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4447 info->attrs[NL80211_ATTR_MESH_SETUP],
4448 nl80211_mesh_setup_params_policy))
4449 return -EINVAL;
4450
d299a1f2
JC		 4451 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4452 setup->sync_method =
4453 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4454 IEEE80211_SYNC_METHOD_VENDOR :
4455 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4456
c80d545d
JC		 4457 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4458 setup->path_sel_proto =
4459 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4460 IEEE80211_PATH_PROTOCOL_VENDOR :
4461 IEEE80211_PATH_PROTOCOL_HWMP;
4462
4463 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4464 setup->path_metric =
4465 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4466 IEEE80211_PATH_METRIC_VENDOR :
4467 IEEE80211_PATH_METRIC_AIRTIME;
4468
581a8b0f
JC		 4469
4470 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4471 struct nlattr *ieattr =
581a8b0f 4472 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4473 if (!is_valid_ie_attr(ieattr))
4474 return -EINVAL;
581a8b0f
JC		 4475 setup->ie = nla_data(ieattr);
4476 setup->ie_len = nla_len(ieattr);
c80d545d 4477 }
b130e5ce
JC		 4478 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4479 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4480
4481 return 0;
4482}
4483
24bdd9f4 4484static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4485 struct genl_info *info)
bd90fdcc
JB		 4486{
4487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4488 struct net_device *dev = info->user_ptr[1];
29cbe68c 4489 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4490 struct mesh_config cfg;
4491 u32 mask;
4492 int err;
4493
29cbe68c
JB		 4494 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4495 return -EOPNOTSUPP;
4496
24bdd9f4 4497 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4498 return -EOPNOTSUPP;
4499
24bdd9f4 4500 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4501 if (err)
4502 return err;
4503
29cbe68c
JB		 4504 wdev_lock(wdev);
4505 if (!wdev->mesh_id_len)
4506 err = -ENOLINK;
4507
4508 if (!err)
e35e4d28 4509 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4510
4511 wdev_unlock(wdev);
4512
4513 return err;
93da9cc1 4514}
4515
f130347c
LR		 4516static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4517{
458f4f9e 4518 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4519 struct sk_buff *msg;
4520 void *hdr = NULL;
4521 struct nlattr *nl_reg_rules;
4522 unsigned int i;
4523 int err = -EINVAL;
4524
a1794390 4525 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4526
4527 if (!cfg80211_regdomain)
4528 goto out;
4529
fd2120ca 4530 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4531 if (!msg) {
4532 err = -ENOBUFS;
4533 goto out;
4534 }
4535
15e47304 4536 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4537 NL80211_CMD_GET_REG);
4538 if (!hdr)
efe1cf0c 4539 goto put_failure;
f130347c 4540
57b5ce07
LR		 4541 if (reg_last_request_cell_base() &&
4542 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4543 NL80211_USER_REG_HINT_CELL_BASE))
4544 goto nla_put_failure;
4545
458f4f9e
JB		 4546 rcu_read_lock();
4547 regdom = rcu_dereference(cfg80211_regdomain);
4548
4549 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4550 (regdom->dfs_region &&
4551 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4552 goto nla_put_failure_rcu;
4553
f130347c
LR		 4554 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4555 if (!nl_reg_rules)
458f4f9e 4556 goto nla_put_failure_rcu;
f130347c 4557
458f4f9e 4558 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4559 struct nlattr *nl_reg_rule;
4560 const struct ieee80211_reg_rule *reg_rule;
4561 const struct ieee80211_freq_range *freq_range;
4562 const struct ieee80211_power_rule *power_rule;
4563
458f4f9e 4564 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4565 freq_range = &reg_rule->freq_range;
4566 power_rule = &reg_rule->power_rule;
4567
4568 nl_reg_rule = nla_nest_start(msg, i);
4569 if (!nl_reg_rule)
458f4f9e 4570 goto nla_put_failure_rcu;
f130347c 4571
9360ffd1
DM		 4572 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4573 reg_rule->flags) ||
4574 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4575 freq_range->start_freq_khz) ||
4576 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4577 freq_range->end_freq_khz) ||
4578 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4579 freq_range->max_bandwidth_khz) ||
4580 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4581 power_rule->max_antenna_gain) ||
4582 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4583 power_rule->max_eirp))
458f4f9e 4584 goto nla_put_failure_rcu;
f130347c
LR		 4585
4586 nla_nest_end(msg, nl_reg_rule);
4587 }
458f4f9e 4588 rcu_read_unlock();
f130347c
LR		 4589
4590 nla_nest_end(msg, nl_reg_rules);
4591
4592 genlmsg_end(msg, hdr);
134e6375 4593 err = genlmsg_reply(msg, info);
f130347c
LR		 4594 goto out;
4595
458f4f9e
JB		 4596nla_put_failure_rcu:
4597 rcu_read_unlock();
f130347c
LR		 4598nla_put_failure:
4599 genlmsg_cancel(msg, hdr);
efe1cf0c 4600put_failure:
d080e275 4601 nlmsg_free(msg);
f130347c
LR		 4602 err = -EMSGSIZE;
4603out:
a1794390 4604 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4605 return err;
4606}
4607
b2e1b302
LR		 4608static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4609{
4610 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4611 struct nlattr *nl_reg_rule;
4612 char *alpha2 = NULL;
4613 int rem_reg_rules = 0, r = 0;
4614 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4615 u8 dfs_region = 0;
b2e1b302
LR		 4616 struct ieee80211_regdomain *rd = NULL;
4617
4618 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4619 return -EINVAL;
4620
4621 if (!info->attrs[NL80211_ATTR_REG_RULES])
4622 return -EINVAL;
4623
4624 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4625
8b60b078
LR		 4626 if (info->attrs[NL80211_ATTR_DFS_REGION])
4627 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4628
b2e1b302 4629 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4630 rem_reg_rules) {
b2e1b302
LR		 4631 num_rules++;
4632 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4633 return -EINVAL;
b2e1b302
LR		 4634 }
4635
b2e1b302 4636 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4637 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4638
4639 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4640 if (!rd)
4641 return -ENOMEM;
b2e1b302
LR		 4642
4643 rd->n_reg_rules = num_rules;
4644 rd->alpha2[0] = alpha2[0];
4645 rd->alpha2[1] = alpha2[1];
4646
8b60b078
LR		 4647 /*
4648 * Disable DFS master mode if the DFS region was
4649 * not supported or known on this kernel.
4650 */
4651 if (reg_supported_dfs_region(dfs_region))
4652 rd->dfs_region = dfs_region;
4653
b2e1b302 4654 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4655 rem_reg_rules) {
b2e1b302 4656 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4657 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4658 reg_rule_policy);
b2e1b302
LR		 4659 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4660 if (r)
4661 goto bad_reg;
4662
4663 rule_idx++;
4664
d0e18f83
LR		 4665 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4666 r = -EINVAL;
b2e1b302 4667 goto bad_reg;
d0e18f83 4668 }
b2e1b302
LR		 4669 }
4670
6913b49a
JB		 4671 mutex_lock(&cfg80211_mutex);
4672
b2e1b302 4673 r = set_regdom(rd);
6913b49a 4674 /* set_regdom took ownership */
1a919318 4675 rd = NULL;
6913b49a 4676 mutex_unlock(&cfg80211_mutex);
b2e1b302 4677
d2372b31 4678 bad_reg:
b2e1b302 4679 kfree(rd);
d0e18f83 4680 return r;
b2e1b302
LR		 4681}
4682
83f5e2cf
JB		 4683static int validate_scan_freqs(struct nlattr *freqs)
4684{
4685 struct nlattr *attr1, *attr2;
4686 int n_channels = 0, tmp1, tmp2;
4687
4688 nla_for_each_nested(attr1, freqs, tmp1) {
4689 n_channels++;
4690 /*
4691 * Some hardware has a limited channel list for
4692 * scanning, and it is pretty much nonsensical
4693 * to scan for a channel twice, so disallow that
4694 * and don't require drivers to check that the
4695 * channel list they get isn't longer than what
4696 * they can scan, as long as they can scan all
4697 * the channels they registered at once.
4698 */
4699 nla_for_each_nested(attr2, freqs, tmp2)
4700 if (attr1 != attr2 &&
4701 nla_get_u32(attr1) == nla_get_u32(attr2))
4702 return 0;
4703 }
4704
4705 return n_channels;
4706}
4707
2a519311
JB		 4708static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4709{
4c476991 4710 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4711 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4712 struct cfg80211_scan_request *request;
2a519311
JB		 4713 struct nlattr *attr;
4714 struct wiphy *wiphy;
83f5e2cf 4715 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4716 size_t ie_len;
2a519311 4717
f4a11bb0
JB		 4718 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4719 return -EINVAL;
4720
79c97e97 4721 wiphy = &rdev->wiphy;
2a519311 4722
4c476991
JB		 4723 if (!rdev->ops->scan)
4724 return -EOPNOTSUPP;
2a519311 4725
4c476991
JB		 4726 if (rdev->scan_req)
4727 return -EBUSY;
2a519311
JB		 4728
4729 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4730 n_channels = validate_scan_freqs(
4731 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4732 if (!n_channels)
4733 return -EINVAL;
2a519311 4734 } else {
34850ab2 4735 enum ieee80211_band band;
83f5e2cf
JB		 4736 n_channels = 0;
4737
2a519311
JB		 4738 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4739 if (wiphy->bands[band])
4740 n_channels += wiphy->bands[band]->n_channels;
4741 }
4742
4743 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4744 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4745 n_ssids++;
4746
4c476991
JB		 4747 if (n_ssids > wiphy->max_scan_ssids)
4748 return -EINVAL;
2a519311 4749
70692ad2
JM		 4750 if (info->attrs[NL80211_ATTR_IE])
4751 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4752 else
4753 ie_len = 0;
4754
4c476991
JB		 4755 if (ie_len > wiphy->max_scan_ie_len)
4756 return -EINVAL;
18a83659 4757
2a519311 4758 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4759 + sizeof(*request->ssids) * n_ssids
4760 + sizeof(*request->channels) * n_channels
70692ad2 4761 + ie_len, GFP_KERNEL);
4c476991
JB		 4762 if (!request)
4763 return -ENOMEM;
2a519311 4764
2a519311 4765 if (n_ssids)
5ba63533 4766 request->ssids = (void *)&request->channels[n_channels];
2a519311 4767 request->n_ssids = n_ssids;
70692ad2
JM		 4768 if (ie_len) {
4769 if (request->ssids)
4770 request->ie = (void *)(request->ssids + n_ssids);
4771 else
4772 request->ie = (void *)(request->channels + n_channels);
4773 }
2a519311 4774
584991dc 4775 i = 0;
2a519311
JB		 4776 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4777 /* user specified, bail out if channel not found */
2a519311 4778 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4779 struct ieee80211_channel *chan;
4780
4781 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4782
4783 if (!chan) {
2a519311
JB		 4784 err = -EINVAL;
4785 goto out_free;
4786 }
584991dc
JB		 4787
4788 /* ignore disabled channels */
4789 if (chan->flags & IEEE80211_CHAN_DISABLED)
4790 continue;
4791
4792 request->channels[i] = chan;
2a519311
JB		 4793 i++;
4794 }
4795 } else {
34850ab2
JB		 4796 enum ieee80211_band band;
4797
2a519311 4798 /* all channels */
2a519311
JB		 4799 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4800 int j;
4801 if (!wiphy->bands[band])
4802 continue;
4803 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4804 struct ieee80211_channel *chan;
4805
4806 chan = &wiphy->bands[band]->channels[j];
4807
4808 if (chan->flags & IEEE80211_CHAN_DISABLED)
4809 continue;
4810
4811 request->channels[i] = chan;
2a519311
JB		 4812 i++;
4813 }
4814 }
4815 }
4816
584991dc
JB		 4817 if (!i) {
4818 err = -EINVAL;
4819 goto out_free;
4820 }
4821
4822 request->n_channels = i;
4823
2a519311
JB		 4824 i = 0;
4825 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4826 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4827 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4828 err = -EINVAL;
4829 goto out_free;
4830 }
57a27e1d 4831 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4832 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4833 i++;
4834 }
4835 }
4836
70692ad2
JM		 4837 if (info->attrs[NL80211_ATTR_IE]) {
4838 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4839 memcpy((void *)request->ie,
4840 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4841 request->ie_len);
4842 }
4843
34850ab2 4844 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4845 if (wiphy->bands[i])
4846 request->rates[i] =
4847 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4848
4849 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4850 nla_for_each_nested(attr,
4851 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4852 tmp) {
4853 enum ieee80211_band band = nla_type(attr);
4854
84404623 4855 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4856 err = -EINVAL;
4857 goto out_free;
4858 }
4859 err = ieee80211_get_ratemask(wiphy->bands[band],
4860 nla_data(attr),
4861 nla_len(attr),
4862 &request->rates[band]);
4863 if (err)
4864 goto out_free;
4865 }
4866 }
4867
46856bbf 4868 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4869 request->flags = nla_get_u32(
4870 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4871 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4872 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4873 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4874 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4875 err = -EOPNOTSUPP;
4876 goto out_free;
4877 }
4878 }
ed473771 4879
e9f935e3
RM		 4880 request->no_cck =
4881 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4882
fd014284 4883 request->wdev = wdev;
79c97e97 4884 request->wiphy = &rdev->wiphy;
15d6030b 4885 request->scan_start = jiffies;
2a519311 4886
79c97e97 4887 rdev->scan_req = request;
e35e4d28 4888 err = rdev_scan(rdev, request);
2a519311 4889
463d0183 4890 if (!err) {
fd014284
JB		 4891 nl80211_send_scan_start(rdev, wdev);
4892 if (wdev->netdev)
4893 dev_hold(wdev->netdev);
4c476991 4894 } else {
2a519311 4895 out_free:
79c97e97 4896 rdev->scan_req = NULL;
2a519311
JB		 4897 kfree(request);
4898 }
3b85875a 4899
2a519311
JB		 4900 return err;
4901}
4902
807f8a8c
LC		 4903static int nl80211_start_sched_scan(struct sk_buff *skb,
4904 struct genl_info *info)
4905{
4906 struct cfg80211_sched_scan_request *request;
4907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4908 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4909 struct nlattr *attr;
4910 struct wiphy *wiphy;
a1f1c21c 4911 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4912 u32 interval;
807f8a8c
LC		 4913 enum ieee80211_band band;
4914 size_t ie_len;
a1f1c21c 4915 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4916
4917 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4918 !rdev->ops->sched_scan_start)
4919 return -EOPNOTSUPP;
4920
4921 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4922 return -EINVAL;
4923
bbe6ad6d
LC		 4924 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4925 return -EINVAL;
4926
4927 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4928 if (interval == 0)
4929 return -EINVAL;
4930
807f8a8c
LC		 4931 wiphy = &rdev->wiphy;
4932
4933 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4934 n_channels = validate_scan_freqs(
4935 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4936 if (!n_channels)
4937 return -EINVAL;
4938 } else {
4939 n_channels = 0;
4940
4941 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4942 if (wiphy->bands[band])
4943 n_channels += wiphy->bands[band]->n_channels;
4944 }
4945
4946 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4947 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4948 tmp)
4949 n_ssids++;
4950
93b6aa69 4951 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4952 return -EINVAL;
4953
a1f1c21c
LC		 4954 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4955 nla_for_each_nested(attr,
4956 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4957 tmp)
4958 n_match_sets++;
4959
4960 if (n_match_sets > wiphy->max_match_sets)
4961 return -EINVAL;
4962
807f8a8c
LC		 4963 if (info->attrs[NL80211_ATTR_IE])
4964 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4965 else
4966 ie_len = 0;
4967
5a865bad 4968 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4969 return -EINVAL;
4970
c10841ca
LC		 4971 mutex_lock(&rdev->sched_scan_mtx);
4972
4973 if (rdev->sched_scan_req) {
4974 err = -EINPROGRESS;
4975 goto out;
4976 }
4977
807f8a8c 4978 request = kzalloc(sizeof(*request)
a2cd43c5 4979 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4980 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4981 + sizeof(*request->channels) * n_channels
807f8a8c 4982 + ie_len, GFP_KERNEL);
c10841ca
LC		 4983 if (!request) {
4984 err = -ENOMEM;
4985 goto out;
4986 }
807f8a8c
LC		 4987
4988 if (n_ssids)
4989 request->ssids = (void *)&request->channels[n_channels];
4990 request->n_ssids = n_ssids;
4991 if (ie_len) {
4992 if (request->ssids)
4993 request->ie = (void *)(request->ssids + n_ssids);
4994 else
4995 request->ie = (void *)(request->channels + n_channels);
4996 }
4997
a1f1c21c
LC		 4998 if (n_match_sets) {
4999 if (request->ie)
5000 request->match_sets = (void *)(request->ie + ie_len);
5001 else if (request->ssids)
5002 request->match_sets =
5003 (void *)(request->ssids + n_ssids);
5004 else
5005 request->match_sets =
5006 (void *)(request->channels + n_channels);
5007 }
5008 request->n_match_sets = n_match_sets;
5009
807f8a8c
LC		 5010 i = 0;
5011 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5012 /* user specified, bail out if channel not found */
5013 nla_for_each_nested(attr,
5014 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5015 tmp) {
5016 struct ieee80211_channel *chan;
5017
5018 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5019
5020 if (!chan) {
5021 err = -EINVAL;
5022 goto out_free;
5023 }
5024
5025 /* ignore disabled channels */
5026 if (chan->flags & IEEE80211_CHAN_DISABLED)
5027 continue;
5028
5029 request->channels[i] = chan;
5030 i++;
5031 }
5032 } else {
5033 /* all channels */
5034 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5035 int j;
5036 if (!wiphy->bands[band])
5037 continue;
5038 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5039 struct ieee80211_channel *chan;
5040
5041 chan = &wiphy->bands[band]->channels[j];
5042
5043 if (chan->flags & IEEE80211_CHAN_DISABLED)
5044 continue;
5045
5046 request->channels[i] = chan;
5047 i++;
5048 }
5049 }
5050 }
5051
5052 if (!i) {
5053 err = -EINVAL;
5054 goto out_free;
5055 }
5056
5057 request->n_channels = i;
5058
5059 i = 0;
5060 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5061 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5062 tmp) {
57a27e1d 5063 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5064 err = -EINVAL;
5065 goto out_free;
5066 }
57a27e1d 5067 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5068 memcpy(request->ssids[i].ssid, nla_data(attr),
5069 nla_len(attr));
807f8a8c
LC		 5070 i++;
5071 }
5072 }
5073
a1f1c21c
LC		 5074 i = 0;
5075 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5076 nla_for_each_nested(attr,
5077 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5078 tmp) {
88e920b4 5079 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5080
5081 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5082 nla_data(attr), nla_len(attr),
5083 nl80211_match_policy);
4a4ab0d7 5084 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5085 if (ssid) {
5086 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5087 err = -EINVAL;
5088 goto out_free;
5089 }
5090 memcpy(request->match_sets[i].ssid.ssid,
5091 nla_data(ssid), nla_len(ssid));
5092 request->match_sets[i].ssid.ssid_len =
5093 nla_len(ssid);
5094 }
88e920b4
TP		 5095 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5096 if (rssi)
5097 request->rssi_thold = nla_get_u32(rssi);
5098 else
5099 request->rssi_thold =
5100 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5101 i++;
5102 }
5103 }
5104
807f8a8c
LC		 5105 if (info->attrs[NL80211_ATTR_IE]) {
5106 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5107 memcpy((void *)request->ie,
5108 nla_data(info->attrs[NL80211_ATTR_IE]),
5109 request->ie_len);
5110 }
5111
46856bbf 5112 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5113 request->flags = nla_get_u32(
5114 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5115 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5116 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5117 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5118 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5119 err = -EOPNOTSUPP;
5120 goto out_free;
5121 }
5122 }
ed473771 5123
807f8a8c
LC		 5124 request->dev = dev;
5125 request->wiphy = &rdev->wiphy;
bbe6ad6d 5126 request->interval = interval;
15d6030b 5127 request->scan_start = jiffies;
807f8a8c 5128
e35e4d28 5129 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5130 if (!err) {
5131 rdev->sched_scan_req = request;
5132 nl80211_send_sched_scan(rdev, dev,
5133 NL80211_CMD_START_SCHED_SCAN);
5134 goto out;
5135 }
5136
5137out_free:
5138 kfree(request);
5139out:
c10841ca 5140 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 5141 return err;
5142}
5143
5144static int nl80211_stop_sched_scan(struct sk_buff *skb,
5145 struct genl_info *info)
5146{
5147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 5148 int err;
807f8a8c
LC		 5149
5150 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5151 !rdev->ops->sched_scan_stop)
5152 return -EOPNOTSUPP;
5153
c10841ca
LC		 5154 mutex_lock(&rdev->sched_scan_mtx);
5155 err = __cfg80211_stop_sched_scan(rdev, false);
5156 mutex_unlock(&rdev->sched_scan_mtx);
5157
5158 return err;
807f8a8c
LC		 5159}
5160
04f39047
SW		 5161static int nl80211_start_radar_detection(struct sk_buff *skb,
5162 struct genl_info *info)
5163{
5164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5165 struct net_device *dev = info->user_ptr[1];
5166 struct wireless_dev *wdev = dev->ieee80211_ptr;
5167 struct cfg80211_chan_def chandef;
5168 int err;
5169
5170 err = nl80211_parse_chandef(rdev, info, &chandef);
5171 if (err)
5172 return err;
5173
5174 if (wdev->cac_started)
5175 return -EBUSY;
5176
5177 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5178 if (err < 0)
5179 return err;
5180
5181 if (err == 0)
5182 return -EINVAL;
5183
5184 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5185 return -EINVAL;
5186
5187 if (!rdev->ops->start_radar_detection)
5188 return -EOPNOTSUPP;
5189
5190 mutex_lock(&rdev->devlist_mtx);
5191 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5192 chandef.chan, CHAN_MODE_SHARED,
5193 BIT(chandef.width));
5194 if (err)
5195 goto err_locked;
5196
5197 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5198 if (!err) {
5199 wdev->channel = chandef.chan;
5200 wdev->cac_started = true;
5201 wdev->cac_start_time = jiffies;
5202 }
5203err_locked:
5204 mutex_unlock(&rdev->devlist_mtx);
5205
5206 return err;
5207}
5208
9720bb3a
JB		 5209static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5210 u32 seq, int flags,
2a519311 5211 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5212 struct wireless_dev *wdev,
5213 struct cfg80211_internal_bss *intbss)
2a519311 5214{
48ab905d 5215 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5216 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5217 void *hdr;
5218 struct nlattr *bss;
8cef2c9d 5219 bool tsf = false;
48ab905d
JB		 5220
5221 ASSERT_WDEV_LOCK(wdev);
2a519311 5222
15e47304 5223 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5224 NL80211_CMD_NEW_SCAN_RESULTS);
5225 if (!hdr)
5226 return -1;
5227
9720bb3a
JB		 5228 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5229
9360ffd1
DM		 5230 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5231 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5232 goto nla_put_failure;
2a519311
JB		 5233
5234 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5235 if (!bss)
5236 goto nla_put_failure;
9360ffd1 5237 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5238 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5239 goto nla_put_failure;
9caf0364
JB		 5240
5241 rcu_read_lock();
5242 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5243 if (ies) {
5244 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5245 goto fail_unlock_rcu;
5246 tsf = true;
5247 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5248 ies->len, ies->data))
5249 goto fail_unlock_rcu;
9caf0364
JB		 5250 }
5251 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5252 if (ies) {
5253 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5254 goto fail_unlock_rcu;
5255 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5256 ies->len, ies->data))
5257 goto fail_unlock_rcu;
9caf0364
JB		 5258 }
5259 rcu_read_unlock();
5260
9360ffd1
DM		 5261 if (res->beacon_interval &&
5262 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5263 goto nla_put_failure;
5264 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5265 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5266 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5267 jiffies_to_msecs(jiffies - intbss->ts)))
5268 goto nla_put_failure;
2a519311 5269
77965c97 5270 switch (rdev->wiphy.signal_type) {
2a519311 5271 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5272 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5273 goto nla_put_failure;
2a519311
JB		 5274 break;
5275 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5276 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5277 goto nla_put_failure;
2a519311
JB		 5278 break;
5279 default:
5280 break;
5281 }
5282
48ab905d 5283 switch (wdev->iftype) {
074ac8df 5284 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5285 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5286 if (intbss == wdev->current_bss &&
5287 nla_put_u32(msg, NL80211_BSS_STATUS,
5288 NL80211_BSS_STATUS_ASSOCIATED))
5289 goto nla_put_failure;
48ab905d
JB		 5290 break;
5291 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5292 if (intbss == wdev->current_bss &&
5293 nla_put_u32(msg, NL80211_BSS_STATUS,
5294 NL80211_BSS_STATUS_IBSS_JOINED))
5295 goto nla_put_failure;
48ab905d
JB		 5296 break;
5297 default:
5298 break;
5299 }
5300
2a519311
JB		 5301 nla_nest_end(msg, bss);
5302
5303 return genlmsg_end(msg, hdr);
5304
8cef2c9d
JB		 5305 fail_unlock_rcu:
5306 rcu_read_unlock();
2a519311
JB		 5307 nla_put_failure:
5308 genlmsg_cancel(msg, hdr);
5309 return -EMSGSIZE;
5310}
5311
5312static int nl80211_dump_scan(struct sk_buff *skb,
5313 struct netlink_callback *cb)
5314{
48ab905d
JB		 5315 struct cfg80211_registered_device *rdev;
5316 struct net_device *dev;
2a519311 5317 struct cfg80211_internal_bss *scan;
48ab905d 5318 struct wireless_dev *wdev;
2a519311
JB		 5319 int start = cb->args[1], idx = 0;
5320 int err;
5321
67748893
JB		 5322 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5323 if (err)
5324 return err;
2a519311 5325
48ab905d 5326 wdev = dev->ieee80211_ptr;
2a519311 5327
48ab905d
JB		 5328 wdev_lock(wdev);
5329 spin_lock_bh(&rdev->bss_lock);
5330 cfg80211_bss_expire(rdev);
5331
9720bb3a
JB		 5332 cb->seq = rdev->bss_generation;
5333
48ab905d 5334 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5335 if (++idx <= start)
5336 continue;
9720bb3a 5337 if (nl80211_send_bss(skb, cb,
2a519311 5338 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5339 rdev, wdev, scan) < 0) {
2a519311 5340 idx--;
67748893 5341 break;
2a519311
JB		 5342 }
5343 }
5344
48ab905d
JB		 5345 spin_unlock_bh(&rdev->bss_lock);
5346 wdev_unlock(wdev);
2a519311
JB		 5347
5348 cb->args[1] = idx;
67748893 5349 nl80211_finish_netdev_dump(rdev);
2a519311 5350
67748893 5351 return skb->len;
2a519311
JB		 5352}
5353
15e47304 5354static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5355 int flags, struct net_device *dev,
5356 struct survey_info *survey)
5357{
5358 void *hdr;
5359 struct nlattr *infoattr;
5360
15e47304 5361 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5362 NL80211_CMD_NEW_SURVEY_RESULTS);
5363 if (!hdr)
5364 return -ENOMEM;
5365
9360ffd1
DM		 5366 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5367 goto nla_put_failure;
61fa713c
HS		 5368
5369 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5370 if (!infoattr)
5371 goto nla_put_failure;
5372
9360ffd1
DM		 5373 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5374 survey->channel->center_freq))
5375 goto nla_put_failure;
5376
5377 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5378 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5379 goto nla_put_failure;
5380 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5381 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5382 goto nla_put_failure;
5383 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5384 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5385 survey->channel_time))
5386 goto nla_put_failure;
5387 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5388 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5389 survey->channel_time_busy))
5390 goto nla_put_failure;
5391 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5392 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5393 survey->channel_time_ext_busy))
5394 goto nla_put_failure;
5395 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5396 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5397 survey->channel_time_rx))
5398 goto nla_put_failure;
5399 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5400 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5401 survey->channel_time_tx))
5402 goto nla_put_failure;
61fa713c
HS		 5403
5404 nla_nest_end(msg, infoattr);
5405
5406 return genlmsg_end(msg, hdr);
5407
5408 nla_put_failure:
5409 genlmsg_cancel(msg, hdr);
5410 return -EMSGSIZE;
5411}
5412
5413static int nl80211_dump_survey(struct sk_buff *skb,
5414 struct netlink_callback *cb)
5415{
5416 struct survey_info survey;
5417 struct cfg80211_registered_device *dev;
5418 struct net_device *netdev;
61fa713c
HS		 5419 int survey_idx = cb->args[1];
5420 int res;
5421
67748893
JB		 5422 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5423 if (res)
5424 return res;
61fa713c
HS		 5425
5426 if (!dev->ops->dump_survey) {
5427 res = -EOPNOTSUPP;
5428 goto out_err;
5429 }
5430
5431 while (1) {
180cdc79
LR		 5432 struct ieee80211_channel *chan;
5433
e35e4d28 5434 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5435 if (res == -ENOENT)
5436 break;
5437 if (res)
5438 goto out_err;
5439
180cdc79
LR		 5440 /* Survey without a channel doesn't make sense */
5441 if (!survey.channel) {
5442 res = -EINVAL;
5443 goto out;
5444 }
5445
5446 chan = ieee80211_get_channel(&dev->wiphy,
5447 survey.channel->center_freq);
5448 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5449 survey_idx++;
5450 continue;
5451 }
5452
61fa713c 5453 if (nl80211_send_survey(skb,
15e47304 5454 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5455 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5456 netdev,
5457 &survey) < 0)
5458 goto out;
5459 survey_idx++;
5460 }
5461
5462 out:
5463 cb->args[1] = survey_idx;
5464 res = skb->len;
5465 out_err:
67748893 5466 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5467 return res;
5468}
5469
b23aa676
SO		 5470static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5471{
5472 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5473 NL80211_WPA_VERSION_2));
5474}
5475
636a5d36
JM		 5476static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5477{
4c476991
JB		 5478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5479 struct net_device *dev = info->user_ptr[1];
19957bb3 5480 struct ieee80211_channel *chan;
e39e5b5e
JM		 5481 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5482 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5483 enum nl80211_auth_type auth_type;
fffd0934 5484 struct key_parse key;
d5cdfacb 5485 bool local_state_change;
636a5d36 5486
f4a11bb0
JB		 5487 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5488 return -EINVAL;
5489
5490 if (!info->attrs[NL80211_ATTR_MAC])
5491 return -EINVAL;
5492
1778092e
JM		 5493 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5494 return -EINVAL;
5495
19957bb3
JB		 5496 if (!info->attrs[NL80211_ATTR_SSID])
5497 return -EINVAL;
5498
5499 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5500 return -EINVAL;
5501
fffd0934
JB		 5502 err = nl80211_parse_key(info, &key);
5503 if (err)
5504 return err;
5505
5506 if (key.idx >= 0) {
e31b8213
JB		 5507 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5508 return -EINVAL;
fffd0934
JB		 5509 if (!key.p.key || !key.p.key_len)
5510 return -EINVAL;
5511 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5512 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5513 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5514 key.p.key_len != WLAN_KEY_LEN_WEP104))
5515 return -EINVAL;
5516 if (key.idx > 4)
5517 return -EINVAL;
5518 } else {
5519 key.p.key_len = 0;
5520 key.p.key = NULL;
5521 }
5522
afea0b7a
JB		 5523 if (key.idx >= 0) {
5524 int i;
5525 bool ok = false;
5526 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5527 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5528 ok = true;
5529 break;
5530 }
5531 }
4c476991
JB		 5532 if (!ok)
5533 return -EINVAL;
afea0b7a
JB		 5534 }
5535
4c476991
JB		 5536 if (!rdev->ops->auth)
5537 return -EOPNOTSUPP;
636a5d36 5538
074ac8df 5539 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5540 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5541 return -EOPNOTSUPP;
eec60b03 5542
19957bb3 5543 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5544 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5545 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5546 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5547 return -EINVAL;
636a5d36 5548
19957bb3
JB		 5549 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5550 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5551
5552 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5553 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5554 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5555 }
5556
19957bb3 5557 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5558 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5559 return -EINVAL;
636a5d36 5560
e39e5b5e
JM		 5561 if (auth_type == NL80211_AUTHTYPE_SAE &&
5562 !info->attrs[NL80211_ATTR_SAE_DATA])
5563 return -EINVAL;
5564
5565 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5566 if (auth_type != NL80211_AUTHTYPE_SAE)
5567 return -EINVAL;
5568 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5569 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5570 /* need to include at least Auth Transaction and Status Code */
5571 if (sae_data_len < 4)
5572 return -EINVAL;
5573 }
5574
d5cdfacb
JM		 5575 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5576
95de817b
JB		 5577 /*
5578 * Since we no longer track auth state, ignore
5579 * requests to only change local state.
5580 */
5581 if (local_state_change)
5582 return 0;
5583
4c476991
JB		 5584 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5585 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5586 key.p.key, key.p.key_len, key.idx,
5587 sae_data, sae_data_len);
636a5d36
JM		 5588}
5589
c0692b8f
JB		 5590static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5591 struct genl_info *info,
3dc27d25
JB		 5592 struct cfg80211_crypto_settings *settings,
5593 int cipher_limit)
b23aa676 5594{
c0b2bbd8
JB		 5595 memset(settings, 0, sizeof(*settings));
5596
b23aa676
SO		 5597 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5598
c0692b8f
JB		 5599 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5600 u16 proto;
5601 proto = nla_get_u16(
5602 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5603 settings->control_port_ethertype = cpu_to_be16(proto);
5604 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5605 proto != ETH_P_PAE)
5606 return -EINVAL;
5607 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5608 settings->control_port_no_encrypt = true;
5609 } else
5610 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5611
b23aa676
SO		 5612 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5613 void *data;
5614 int len, i;
5615
5616 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5617 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5618 settings->n_ciphers_pairwise = len / sizeof(u32);
5619
5620 if (len % sizeof(u32))
5621 return -EINVAL;
5622
3dc27d25 5623 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5624 return -EINVAL;
5625
5626 memcpy(settings->ciphers_pairwise, data, len);
5627
5628 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5629 if (!cfg80211_supported_cipher_suite(
5630 &rdev->wiphy,
b23aa676
SO		 5631 settings->ciphers_pairwise[i]))
5632 return -EINVAL;
5633 }
5634
5635 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5636 settings->cipher_group =
5637 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5638 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5639 settings->cipher_group))
b23aa676
SO		 5640 return -EINVAL;
5641 }
5642
5643 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5644 settings->wpa_versions =
5645 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5646 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5647 return -EINVAL;
5648 }
5649
5650 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5651 void *data;
6d30240e 5652 int len;
b23aa676
SO		 5653
5654 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5655 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5656 settings->n_akm_suites = len / sizeof(u32);
5657
5658 if (len % sizeof(u32))
5659 return -EINVAL;
5660
1b9ca027
JM		 5661 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5662 return -EINVAL;
5663
b23aa676 5664 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5665 }
5666
5667 return 0;
5668}
5669
636a5d36
JM		 5670static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5671{
4c476991
JB		 5672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5673 struct net_device *dev = info->user_ptr[1];
19957bb3 5674 struct cfg80211_crypto_settings crypto;
f444de05 5675 struct ieee80211_channel *chan;
3e5d7649 5676 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5677 int err, ssid_len, ie_len = 0;
5678 bool use_mfp = false;
7e7c8926
BG		 5679 u32 flags = 0;
5680 struct ieee80211_ht_cap *ht_capa = NULL;
5681 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5682
f4a11bb0
JB		 5683 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5684 return -EINVAL;
5685
5686 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5687 !info->attrs[NL80211_ATTR_SSID] ||
5688 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5689 return -EINVAL;
5690
4c476991
JB		 5691 if (!rdev->ops->assoc)
5692 return -EOPNOTSUPP;
636a5d36 5693
074ac8df 5694 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5695 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5696 return -EOPNOTSUPP;
eec60b03 5697
19957bb3 5698 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5699
19957bb3
JB		 5700 chan = ieee80211_get_channel(&rdev->wiphy,
5701 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5702 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5703 return -EINVAL;
636a5d36 5704
19957bb3
JB		 5705 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5706 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
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
dc6382ce 5713 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5714 enum nl80211_mfp mfp =
dc6382ce 5715 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5716 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5717 use_mfp = true;
4c476991
JB		 5718 else if (mfp != NL80211_MFP_NO)
5719 return -EINVAL;
dc6382ce
JM		 5720 }
5721
3e5d7649
JB		 5722 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5723 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5724
7e7c8926
BG		 5725 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5726 flags |= ASSOC_REQ_DISABLE_HT;
5727
5728 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5729 ht_capa_mask =
5730 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5731
5732 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5733 if (!ht_capa_mask)
5734 return -EINVAL;
5735 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5736 }
5737
c0692b8f 5738 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5739 if (!err)
3e5d7649
JB		 5740 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5741 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5742 &crypto, flags, ht_capa,
5743 ht_capa_mask);
636a5d36 5744
636a5d36
JM		 5745 return err;
5746}
5747
5748static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5749{
4c476991
JB		 5750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5751 struct net_device *dev = info->user_ptr[1];
19957bb3 5752 const u8 *ie = NULL, *bssid;
4c476991 5753 int ie_len = 0;
19957bb3 5754 u16 reason_code;
d5cdfacb 5755 bool local_state_change;
636a5d36 5756
f4a11bb0
JB		 5757 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5758 return -EINVAL;
5759
5760 if (!info->attrs[NL80211_ATTR_MAC])
5761 return -EINVAL;
5762
5763 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5764 return -EINVAL;
5765
4c476991
JB		 5766 if (!rdev->ops->deauth)
5767 return -EOPNOTSUPP;
636a5d36 5768
074ac8df 5769 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5770 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5771 return -EOPNOTSUPP;
eec60b03 5772
19957bb3 5773 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5774
19957bb3
JB		 5775 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5776 if (reason_code == 0) {
f4a11bb0 5777 /* Reason Code 0 is reserved */
4c476991 5778 return -EINVAL;
255e737e 5779 }
636a5d36
JM		 5780
5781 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5782 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5783 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5784 }
5785
d5cdfacb
JM		 5786 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5787
4c476991
JB		 5788 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5789 local_state_change);
636a5d36
JM		 5790}
5791
5792static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5793{
4c476991
JB		 5794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5795 struct net_device *dev = info->user_ptr[1];
19957bb3 5796 const u8 *ie = NULL, *bssid;
4c476991 5797 int ie_len = 0;
19957bb3 5798 u16 reason_code;
d5cdfacb 5799 bool local_state_change;
636a5d36 5800
f4a11bb0
JB		 5801 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5802 return -EINVAL;
5803
5804 if (!info->attrs[NL80211_ATTR_MAC])
5805 return -EINVAL;
5806
5807 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5808 return -EINVAL;
5809
4c476991
JB		 5810 if (!rdev->ops->disassoc)
5811 return -EOPNOTSUPP;
636a5d36 5812
074ac8df 5813 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5814 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5815 return -EOPNOTSUPP;
eec60b03 5816
19957bb3 5817 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5818
19957bb3
JB		 5819 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5820 if (reason_code == 0) {
f4a11bb0 5821 /* Reason Code 0 is reserved */
4c476991 5822 return -EINVAL;
255e737e 5823 }
636a5d36
JM		 5824
5825 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5826 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5827 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5828 }
5829
d5cdfacb
JM		 5830 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5831
4c476991
JB		 5832 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5833 local_state_change);
636a5d36
JM		 5834}
5835
dd5b4cc7
FF		 5836static bool
5837nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5838 int mcast_rate[IEEE80211_NUM_BANDS],
5839 int rateval)
5840{
5841 struct wiphy *wiphy = &rdev->wiphy;
5842 bool found = false;
5843 int band, i;
5844
5845 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5846 struct ieee80211_supported_band *sband;
5847
5848 sband = wiphy->bands[band];
5849 if (!sband)
5850 continue;
5851
5852 for (i = 0; i < sband->n_bitrates; i++) {
5853 if (sband->bitrates[i].bitrate == rateval) {
5854 mcast_rate[band] = i + 1;
5855 found = true;
5856 break;
5857 }
5858 }
5859 }
5860
5861 return found;
5862}
5863
04a773ad
JB		 5864static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5865{
4c476991
JB		 5866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5867 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5868 struct cfg80211_ibss_params ibss;
5869 struct wiphy *wiphy;
fffd0934 5870 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5871 int err;
5872
8e30bc55
JB		 5873 memset(&ibss, 0, sizeof(ibss));
5874
04a773ad
JB		 5875 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5876 return -EINVAL;
5877
683b6d3b 5878 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 5879 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5880 return -EINVAL;
5881
8e30bc55
JB		 5882 ibss.beacon_interval = 100;
5883
5884 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5885 ibss.beacon_interval =
5886 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5887 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5888 return -EINVAL;
5889 }
5890
4c476991
JB		 5891 if (!rdev->ops->join_ibss)
5892 return -EOPNOTSUPP;
04a773ad 5893
4c476991
JB		 5894 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5895 return -EOPNOTSUPP;
04a773ad 5896
79c97e97 5897 wiphy = &rdev->wiphy;
04a773ad 5898
39193498 5899 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5900 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5901
5902 if (!is_valid_ether_addr(ibss.bssid))
5903 return -EINVAL;
5904 }
04a773ad
JB		 5905 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5906 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5907
5908 if (info->attrs[NL80211_ATTR_IE]) {
5909 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5910 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5911 }
5912
683b6d3b
JB		 5913 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5914 if (err)
5915 return err;
04a773ad 5916
683b6d3b 5917 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 5918 return -EINVAL;
5919
db9c64cf
JB		 5920 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5921 return -EINVAL;
5922 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5923 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 5924 return -EINVAL;
db9c64cf 5925
04a773ad 5926 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5927 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5928
fbd2c8dc
TP		 5929 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5930 u8 *rates =
5931 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5932 int n_rates =
5933 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5934 struct ieee80211_supported_band *sband =
683b6d3b 5935 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 5936
34850ab2
JB		 5937 err = ieee80211_get_ratemask(sband, rates, n_rates,
5938 &ibss.basic_rates);
5939 if (err)
5940 return err;
fbd2c8dc 5941 }
dd5b4cc7
FF		 5942
5943 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5944 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5945 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5946 return -EINVAL;
fbd2c8dc 5947
4c476991 5948 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 5949 bool no_ht = false;
5950
4c476991 5951 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 5952 info->attrs[NL80211_ATTR_KEYS],
5953 &no_ht);
4c476991
JB		 5954 if (IS_ERR(connkeys))
5955 return PTR_ERR(connkeys);
de7044ee 5956
3d9d1d66
JB		 5957 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5958 no_ht) {
de7044ee
SM		 5959 kfree(connkeys);
5960 return -EINVAL;
5961 }
4c476991 5962 }
04a773ad 5963
267335d6
AQ		 5964 ibss.control_port =
5965 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5966
4c476991 5967 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5968 if (err)
5969 kfree(connkeys);
04a773ad
JB		 5970 return err;
5971}
5972
5973static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5974{
4c476991
JB		 5975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5976 struct net_device *dev = info->user_ptr[1];
04a773ad 5977
4c476991
JB		 5978 if (!rdev->ops->leave_ibss)
5979 return -EOPNOTSUPP;
04a773ad 5980
4c476991
JB		 5981 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5982 return -EOPNOTSUPP;
04a773ad 5983
4c476991 5984 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5985}
5986
f4e583c8
AQ		 5987static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5988{
5989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5990 struct net_device *dev = info->user_ptr[1];
5991 int mcast_rate[IEEE80211_NUM_BANDS];
5992 u32 nla_rate;
5993 int err;
5994
5995 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5996 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5997 return -EOPNOTSUPP;
5998
5999 if (!rdev->ops->set_mcast_rate)
6000 return -EOPNOTSUPP;
6001
6002 memset(mcast_rate, 0, sizeof(mcast_rate));
6003
6004 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6005 return -EINVAL;
6006
6007 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6008 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6009 return -EINVAL;
6010
6011 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6012
6013 return err;
6014}
6015
6016
aff89a9b
JB		 6017#ifdef CONFIG_NL80211_TESTMODE
6018static struct genl_multicast_group nl80211_testmode_mcgrp = {
6019 .name = "testmode",
6020};
6021
6022static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6023{
4c476991 6024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6025 int err;
6026
6027 if (!info->attrs[NL80211_ATTR_TESTDATA])
6028 return -EINVAL;
6029
aff89a9b
JB		 6030 err = -EOPNOTSUPP;
6031 if (rdev->ops->testmode_cmd) {
6032 rdev->testmode_info = info;
e35e4d28 6033 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6034 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6035 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6036 rdev->testmode_info = NULL;
6037 }
6038
aff89a9b
JB		 6039 return err;
6040}
6041
71063f0e
WYG		 6042static int nl80211_testmode_dump(struct sk_buff *skb,
6043 struct netlink_callback *cb)
6044{
00918d33 6045 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6046 int err;
6047 long phy_idx;
6048 void *data = NULL;
6049 int data_len = 0;
6050
6051 if (cb->args[0]) {
6052 /*
6053 * 0 is a valid index, but not valid for args[0],
6054 * so we need to offset by 1.
6055 */
6056 phy_idx = cb->args[0] - 1;
6057 } else {
6058 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6059 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6060 nl80211_policy);
6061 if (err)
6062 return err;
00918d33 6063
2bd7e35d
JB		 6064 mutex_lock(&cfg80211_mutex);
6065 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6066 nl80211_fam.attrbuf);
6067 if (IS_ERR(rdev)) {
6068 mutex_unlock(&cfg80211_mutex);
6069 return PTR_ERR(rdev);
00918d33 6070 }
2bd7e35d
JB		 6071 phy_idx = rdev->wiphy_idx;
6072 rdev = NULL;
6073 mutex_unlock(&cfg80211_mutex);
6074
71063f0e
WYG		 6075 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6076 cb->args[1] =
6077 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6078 }
6079
6080 if (cb->args[1]) {
6081 data = nla_data((void *)cb->args[1]);
6082 data_len = nla_len((void *)cb->args[1]);
6083 }
6084
6085 mutex_lock(&cfg80211_mutex);
00918d33
JB		 6086 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6087 if (!rdev) {
71063f0e
WYG		 6088 mutex_unlock(&cfg80211_mutex);
6089 return -ENOENT;
6090 }
00918d33 6091 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 6092 mutex_unlock(&cfg80211_mutex);
6093
00918d33 6094 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6095 err = -EOPNOTSUPP;
6096 goto out_err;
6097 }
6098
6099 while (1) {
15e47304 6100 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6101 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6102 NL80211_CMD_TESTMODE);
6103 struct nlattr *tmdata;
6104
9360ffd1 6105 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6106 genlmsg_cancel(skb, hdr);
6107 break;
6108 }
6109
6110 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6111 if (!tmdata) {
6112 genlmsg_cancel(skb, hdr);
6113 break;
6114 }
e35e4d28 6115 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6116 nla_nest_end(skb, tmdata);
6117
6118 if (err == -ENOBUFS || err == -ENOENT) {
6119 genlmsg_cancel(skb, hdr);
6120 break;
6121 } else if (err) {
6122 genlmsg_cancel(skb, hdr);
6123 goto out_err;
6124 }
6125
6126 genlmsg_end(skb, hdr);
6127 }
6128
6129 err = skb->len;
6130 /* see above */
6131 cb->args[0] = phy_idx + 1;
6132 out_err:
00918d33 6133 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 6134 return err;
6135}
6136
aff89a9b
JB		 6137static struct sk_buff *
6138__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6139 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6140{
6141 struct sk_buff *skb;
6142 void *hdr;
6143 struct nlattr *data;
6144
6145 skb = nlmsg_new(approxlen + 100, gfp);
6146 if (!skb)
6147 return NULL;
6148
15e47304 6149 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6150 if (!hdr) {
6151 kfree_skb(skb);
6152 return NULL;
6153 }
6154
9360ffd1
DM		 6155 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6156 goto nla_put_failure;
aff89a9b
JB		 6157 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6158
6159 ((void **)skb->cb)[0] = rdev;
6160 ((void **)skb->cb)[1] = hdr;
6161 ((void **)skb->cb)[2] = data;
6162
6163 return skb;
6164
6165 nla_put_failure:
6166 kfree_skb(skb);
6167 return NULL;
6168}
6169
6170struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6171 int approxlen)
6172{
6173 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6174
6175 if (WARN_ON(!rdev->testmode_info))
6176 return NULL;
6177
6178 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6179 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6180 rdev->testmode_info->snd_seq,
6181 GFP_KERNEL);
6182}
6183EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6184
6185int cfg80211_testmode_reply(struct sk_buff *skb)
6186{
6187 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6188 void *hdr = ((void **)skb->cb)[1];
6189 struct nlattr *data = ((void **)skb->cb)[2];
6190
6191 if (WARN_ON(!rdev->testmode_info)) {
6192 kfree_skb(skb);
6193 return -EINVAL;
6194 }
6195
6196 nla_nest_end(skb, data);
6197 genlmsg_end(skb, hdr);
6198 return genlmsg_reply(skb, rdev->testmode_info);
6199}
6200EXPORT_SYMBOL(cfg80211_testmode_reply);
6201
6202struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6203 int approxlen, gfp_t gfp)
6204{
6205 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6206
6207 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6208}
6209EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6210
6211void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6212{
6213 void *hdr = ((void **)skb->cb)[1];
6214 struct nlattr *data = ((void **)skb->cb)[2];
6215
6216 nla_nest_end(skb, data);
6217 genlmsg_end(skb, hdr);
6218 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6219}
6220EXPORT_SYMBOL(cfg80211_testmode_event);
6221#endif
6222
b23aa676
SO		 6223static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6224{
4c476991
JB		 6225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6226 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6227 struct cfg80211_connect_params connect;
6228 struct wiphy *wiphy;
fffd0934 6229 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6230 int err;
6231
6232 memset(&connect, 0, sizeof(connect));
6233
6234 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6235 return -EINVAL;
6236
6237 if (!info->attrs[NL80211_ATTR_SSID] ||
6238 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6239 return -EINVAL;
6240
6241 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6242 connect.auth_type =
6243 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6244 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6245 NL80211_CMD_CONNECT))
b23aa676
SO		 6246 return -EINVAL;
6247 } else
6248 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6249
6250 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6251
c0692b8f 6252 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6253 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6254 if (err)
6255 return err;
b23aa676 6256
074ac8df 6257 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6258 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6259 return -EOPNOTSUPP;
b23aa676 6260
79c97e97 6261 wiphy = &rdev->wiphy;
b23aa676 6262
4486ea98
BS		 6263 connect.bg_scan_period = -1;
6264 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6265 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6266 connect.bg_scan_period =
6267 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6268 }
6269
b23aa676
SO		 6270 if (info->attrs[NL80211_ATTR_MAC])
6271 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6272 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6273 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6274
6275 if (info->attrs[NL80211_ATTR_IE]) {
6276 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6277 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6278 }
6279
cee00a95
JM		 6280 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6281 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6282 if (connect.mfp != NL80211_MFP_REQUIRED &&
6283 connect.mfp != NL80211_MFP_NO)
6284 return -EINVAL;
6285 } else {
6286 connect.mfp = NL80211_MFP_NO;
6287 }
6288
b23aa676
SO		 6289 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6290 connect.channel =
6291 ieee80211_get_channel(wiphy,
6292 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6293 if (!connect.channel ||
4c476991
JB		 6294 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6295 return -EINVAL;
b23aa676
SO		 6296 }
6297
fffd0934
JB		 6298 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6299 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6300 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6301 if (IS_ERR(connkeys))
6302 return PTR_ERR(connkeys);
fffd0934
JB		 6303 }
6304
7e7c8926
BG		 6305 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6306 connect.flags |= ASSOC_REQ_DISABLE_HT;
6307
6308 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6309 memcpy(&connect.ht_capa_mask,
6310 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6311 sizeof(connect.ht_capa_mask));
6312
6313 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6314 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6315 kfree(connkeys);
7e7c8926 6316 return -EINVAL;
b4e4f47e 6317 }
7e7c8926
BG		 6318 memcpy(&connect.ht_capa,
6319 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6320 sizeof(connect.ht_capa));
6321 }
6322
fffd0934 6323 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 6324 if (err)
6325 kfree(connkeys);
b23aa676
SO		 6326 return err;
6327}
6328
6329static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6330{
4c476991
JB		 6331 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6332 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6333 u16 reason;
6334
6335 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6336 reason = WLAN_REASON_DEAUTH_LEAVING;
6337 else
6338 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6339
6340 if (reason == 0)
6341 return -EINVAL;
6342
074ac8df 6343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6345 return -EOPNOTSUPP;
b23aa676 6346
4c476991 6347 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 6348}
6349
463d0183
JB		 6350static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6351{
4c476991 6352 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6353 struct net *net;
6354 int err;
6355 u32 pid;
6356
6357 if (!info->attrs[NL80211_ATTR_PID])
6358 return -EINVAL;
6359
6360 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6361
463d0183 6362 net = get_net_ns_by_pid(pid);
4c476991
JB		 6363 if (IS_ERR(net))
6364 return PTR_ERR(net);
463d0183
JB		 6365
6366 err = 0;
6367
6368 /* check if anything to do */
4c476991
JB		 6369 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6370 err = cfg80211_switch_netns(rdev, net);
463d0183 6371
463d0183 6372 put_net(net);
463d0183
JB		 6373 return err;
6374}
6375
67fbb16b
SO		 6376static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6377{
4c476991 6378 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6379 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6380 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6381 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6382 struct cfg80211_pmksa pmksa;
6383
6384 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6385
6386 if (!info->attrs[NL80211_ATTR_MAC])
6387 return -EINVAL;
6388
6389 if (!info->attrs[NL80211_ATTR_PMKID])
6390 return -EINVAL;
6391
67fbb16b
SO		 6392 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6393 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6394
074ac8df 6395 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6396 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6397 return -EOPNOTSUPP;
67fbb16b
SO		 6398
6399 switch (info->genlhdr->cmd) {
6400 case NL80211_CMD_SET_PMKSA:
6401 rdev_ops = rdev->ops->set_pmksa;
6402 break;
6403 case NL80211_CMD_DEL_PMKSA:
6404 rdev_ops = rdev->ops->del_pmksa;
6405 break;
6406 default:
6407 WARN_ON(1);
6408 break;
6409 }
6410
4c476991
JB		 6411 if (!rdev_ops)
6412 return -EOPNOTSUPP;
67fbb16b 6413
4c476991 6414 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6415}
6416
6417static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6418{
4c476991
JB		 6419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6420 struct net_device *dev = info->user_ptr[1];
67fbb16b 6421
074ac8df 6422 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6423 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6424 return -EOPNOTSUPP;
67fbb16b 6425
4c476991
JB		 6426 if (!rdev->ops->flush_pmksa)
6427 return -EOPNOTSUPP;
67fbb16b 6428
e35e4d28 6429 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6430}
6431
109086ce
AN		 6432static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6433{
6434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6435 struct net_device *dev = info->user_ptr[1];
6436 u8 action_code, dialog_token;
6437 u16 status_code;
6438 u8 *peer;
6439
6440 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6441 !rdev->ops->tdls_mgmt)
6442 return -EOPNOTSUPP;
6443
6444 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6445 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6446 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6447 !info->attrs[NL80211_ATTR_IE] ||
6448 !info->attrs[NL80211_ATTR_MAC])
6449 return -EINVAL;
6450
6451 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6452 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6453 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6454 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6455
e35e4d28
HG		 6456 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6457 dialog_token, status_code,
6458 nla_data(info->attrs[NL80211_ATTR_IE]),
6459 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6460}
6461
6462static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6463{
6464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6465 struct net_device *dev = info->user_ptr[1];
6466 enum nl80211_tdls_operation operation;
6467 u8 *peer;
6468
6469 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6470 !rdev->ops->tdls_oper)
6471 return -EOPNOTSUPP;
6472
6473 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6474 !info->attrs[NL80211_ATTR_MAC])
6475 return -EINVAL;
6476
6477 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6478 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6479
e35e4d28 6480 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6481}
6482
9588bbd5
JM		 6483static int nl80211_remain_on_channel(struct sk_buff *skb,
6484 struct genl_info *info)
6485{
4c476991 6486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6487 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6488 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6489 struct sk_buff *msg;
6490 void *hdr;
6491 u64 cookie;
683b6d3b 6492 u32 duration;
9588bbd5
JM		 6493 int err;
6494
6495 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6496 !info->attrs[NL80211_ATTR_DURATION])
6497 return -EINVAL;
6498
6499 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6500
ebf348fc
JB		 6501 if (!rdev->ops->remain_on_channel ||
6502 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6503 return -EOPNOTSUPP;
6504
9588bbd5 6505 /*
ebf348fc
JB		 6506 * We should be on that channel for at least a minimum amount of
6507 * time (10ms) but no longer than the driver supports.
9588bbd5 6508 */
ebf348fc 6509 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6510 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6511 return -EINVAL;
6512
683b6d3b
JB		 6513 err = nl80211_parse_chandef(rdev, info, &chandef);
6514 if (err)
6515 return err;
9588bbd5
JM		 6516
6517 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6518 if (!msg)
6519 return -ENOMEM;
9588bbd5 6520
15e47304 6521 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6522 NL80211_CMD_REMAIN_ON_CHANNEL);
6523
6524 if (IS_ERR(hdr)) {
6525 err = PTR_ERR(hdr);
6526 goto free_msg;
6527 }
6528
683b6d3b
JB		 6529 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6530 duration, &cookie);
9588bbd5
JM		 6531
6532 if (err)
6533 goto free_msg;
6534
9360ffd1
DM		 6535 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6536 goto nla_put_failure;
9588bbd5
JM		 6537
6538 genlmsg_end(msg, hdr);
4c476991
JB		 6539
6540 return genlmsg_reply(msg, info);
9588bbd5
JM		 6541
6542 nla_put_failure:
6543 err = -ENOBUFS;
6544 free_msg:
6545 nlmsg_free(msg);
9588bbd5
JM		 6546 return err;
6547}
6548
6549static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6550 struct genl_info *info)
6551{
4c476991 6552 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6553 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6554 u64 cookie;
9588bbd5
JM		 6555
6556 if (!info->attrs[NL80211_ATTR_COOKIE])
6557 return -EINVAL;
6558
4c476991
JB		 6559 if (!rdev->ops->cancel_remain_on_channel)
6560 return -EOPNOTSUPP;
9588bbd5 6561
9588bbd5
JM		 6562 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6563
e35e4d28 6564 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6565}
6566
13ae75b1
JM		 6567static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6568 u8 *rates, u8 rates_len)
6569{
6570 u8 i;
6571 u32 mask = 0;
6572
6573 for (i = 0; i < rates_len; i++) {
6574 int rate = (rates[i] & 0x7f) * 5;
6575 int ridx;
6576 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6577 struct ieee80211_rate *srate =
6578 &sband->bitrates[ridx];
6579 if (rate == srate->bitrate) {
6580 mask |= 1 << ridx;
6581 break;
6582 }
6583 }
6584 if (ridx == sband->n_bitrates)
6585 return 0; /* rate not found */
6586 }
6587
6588 return mask;
6589}
6590
24db78c0
SW		 6591static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6592 u8 *rates, u8 rates_len,
6593 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6594{
6595 u8 i;
6596
6597 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6598
6599 for (i = 0; i < rates_len; i++) {
6600 int ridx, rbit;
6601
6602 ridx = rates[i] / 8;
6603 rbit = BIT(rates[i] % 8);
6604
6605 /* check validity */
910570b5 6606 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6607 return false;
6608
6609 /* check availability */
6610 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6611 mcs[ridx] |= rbit;
6612 else
6613 return false;
6614 }
6615
6616 return true;
6617}
6618
b54452b0 6619static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6620 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6621 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6622 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6623 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6624};
6625
6626static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6627 struct genl_info *info)
6628{
6629 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6631 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6632 int rem, i;
6633 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6634 struct nlattr *tx_rates;
6635 struct ieee80211_supported_band *sband;
6636
6637 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6638 return -EINVAL;
6639
4c476991
JB		 6640 if (!rdev->ops->set_bitrate_mask)
6641 return -EOPNOTSUPP;
13ae75b1
JM		 6642
6643 memset(&mask, 0, sizeof(mask));
6644 /* Default to all rates enabled */
6645 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6646 sband = rdev->wiphy.bands[i];
6647 mask.control[i].legacy =
6648 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6649 if (sband)
6650 memcpy(mask.control[i].mcs,
6651 sband->ht_cap.mcs.rx_mask,
6652 sizeof(mask.control[i].mcs));
6653 else
6654 memset(mask.control[i].mcs, 0,
6655 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6656 }
6657
6658 /*
6659 * The nested attribute uses enum nl80211_band as the index. This maps
6660 * directly to the enum ieee80211_band values used in cfg80211.
6661 */
24db78c0 6662 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6663 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6664 {
6665 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6666 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6667 return -EINVAL;
13ae75b1 6668 sband = rdev->wiphy.bands[band];
4c476991
JB		 6669 if (sband == NULL)
6670 return -EINVAL;
13ae75b1
JM		 6671 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6672 nla_len(tx_rates), nl80211_txattr_policy);
6673 if (tb[NL80211_TXRATE_LEGACY]) {
6674 mask.control[band].legacy = rateset_to_mask(
6675 sband,
6676 nla_data(tb[NL80211_TXRATE_LEGACY]),
6677 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6678 if ((mask.control[band].legacy == 0) &&
6679 nla_len(tb[NL80211_TXRATE_LEGACY]))
6680 return -EINVAL;
24db78c0
SW		 6681 }
6682 if (tb[NL80211_TXRATE_MCS]) {
6683 if (!ht_rateset_to_mask(
6684 sband,
6685 nla_data(tb[NL80211_TXRATE_MCS]),
6686 nla_len(tb[NL80211_TXRATE_MCS]),
6687 mask.control[band].mcs))
6688 return -EINVAL;
6689 }
6690
6691 if (mask.control[band].legacy == 0) {
6692 /* don't allow empty legacy rates if HT
6693 * is not even supported. */
6694 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6695 return -EINVAL;
6696
6697 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6698 if (mask.control[band].mcs[i])
6699 break;
6700
6701 /* legacy and mcs rates may not be both empty */
6702 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6703 return -EINVAL;
13ae75b1
JM		 6704 }
6705 }
6706
e35e4d28 6707 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 6708}
6709
2e161f78 6710static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6711{
4c476991 6712 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6713 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6714 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6715
6716 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6717 return -EINVAL;
6718
2e161f78
JB		 6719 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6720 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6721
71bbc994
JB		 6722 switch (wdev->iftype) {
6723 case NL80211_IFTYPE_STATION:
6724 case NL80211_IFTYPE_ADHOC:
6725 case NL80211_IFTYPE_P2P_CLIENT:
6726 case NL80211_IFTYPE_AP:
6727 case NL80211_IFTYPE_AP_VLAN:
6728 case NL80211_IFTYPE_MESH_POINT:
6729 case NL80211_IFTYPE_P2P_GO:
98104fde 6730 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6731 break;
6732 default:
4c476991 6733 return -EOPNOTSUPP;
71bbc994 6734 }
026331c4
JM		 6735
6736 /* not much point in registering if we can't reply */
4c476991
JB		 6737 if (!rdev->ops->mgmt_tx)
6738 return -EOPNOTSUPP;
026331c4 6739
15e47304 6740 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6741 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6742 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6743}
6744
2e161f78 6745static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6746{
4c476991 6747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6748 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6749 struct cfg80211_chan_def chandef;
026331c4 6750 int err;
d64d373f 6751 void *hdr = NULL;
026331c4 6752 u64 cookie;
e247bd90 6753 struct sk_buff *msg = NULL;
f7ca38df 6754 unsigned int wait = 0;
e247bd90
JB		 6755 bool offchan, no_cck, dont_wait_for_ack;
6756
6757 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 6758
683b6d3b 6759 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 6760 return -EINVAL;
6761
4c476991
JB		 6762 if (!rdev->ops->mgmt_tx)
6763 return -EOPNOTSUPP;
026331c4 6764
71bbc994
JB		 6765 switch (wdev->iftype) {
6766 case NL80211_IFTYPE_STATION:
6767 case NL80211_IFTYPE_ADHOC:
6768 case NL80211_IFTYPE_P2P_CLIENT:
6769 case NL80211_IFTYPE_AP:
6770 case NL80211_IFTYPE_AP_VLAN:
6771 case NL80211_IFTYPE_MESH_POINT:
6772 case NL80211_IFTYPE_P2P_GO:
98104fde 6773 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6774 break;
6775 default:
4c476991 6776 return -EOPNOTSUPP;
71bbc994 6777 }
026331c4 6778
f7ca38df 6779 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6780 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6781 return -EINVAL;
6782 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6783
6784 /*
6785 * We should wait on the channel for at least a minimum amount
6786 * of time (10ms) but no longer than the driver supports.
6787 */
6788 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6789 wait > rdev->wiphy.max_remain_on_channel_duration)
6790 return -EINVAL;
6791
f7ca38df
JB		 6792 }
6793
f7ca38df
JB		 6794 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6795
7c4ef712
JB		 6796 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6797 return -EINVAL;
6798
e9f935e3
RM		 6799 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6800
683b6d3b
JB		 6801 err = nl80211_parse_chandef(rdev, info, &chandef);
6802 if (err)
6803 return err;
026331c4 6804
e247bd90
JB		 6805 if (!dont_wait_for_ack) {
6806 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6807 if (!msg)
6808 return -ENOMEM;
026331c4 6809
15e47304 6810 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6811 NL80211_CMD_FRAME);
026331c4 6812
e247bd90
JB		 6813 if (IS_ERR(hdr)) {
6814 err = PTR_ERR(hdr);
6815 goto free_msg;
6816 }
026331c4 6817 }
e247bd90 6818
683b6d3b 6819 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 6820 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6821 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6822 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6823 if (err)
6824 goto free_msg;
6825
e247bd90 6826 if (msg) {
9360ffd1
DM		 6827 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6828 goto nla_put_failure;
026331c4 6829
e247bd90
JB		 6830 genlmsg_end(msg, hdr);
6831 return genlmsg_reply(msg, info);
6832 }
6833
6834 return 0;
026331c4
JM		 6835
6836 nla_put_failure:
6837 err = -ENOBUFS;
6838 free_msg:
6839 nlmsg_free(msg);
026331c4
JM		 6840 return err;
6841}
6842
f7ca38df
JB		 6843static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6844{
6845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6846 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6847 u64 cookie;
6848
6849 if (!info->attrs[NL80211_ATTR_COOKIE])
6850 return -EINVAL;
6851
6852 if (!rdev->ops->mgmt_tx_cancel_wait)
6853 return -EOPNOTSUPP;
6854
71bbc994
JB		 6855 switch (wdev->iftype) {
6856 case NL80211_IFTYPE_STATION:
6857 case NL80211_IFTYPE_ADHOC:
6858 case NL80211_IFTYPE_P2P_CLIENT:
6859 case NL80211_IFTYPE_AP:
6860 case NL80211_IFTYPE_AP_VLAN:
6861 case NL80211_IFTYPE_P2P_GO:
98104fde 6862 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6863 break;
6864 default:
f7ca38df 6865 return -EOPNOTSUPP;
71bbc994 6866 }
f7ca38df
JB		 6867
6868 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6869
e35e4d28 6870 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 6871}
6872
ffb9eb3d
KV		 6873static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6874{
4c476991 6875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6876 struct wireless_dev *wdev;
4c476991 6877 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6878 u8 ps_state;
6879 bool state;
6880 int err;
6881
4c476991
JB		 6882 if (!info->attrs[NL80211_ATTR_PS_STATE])
6883 return -EINVAL;
ffb9eb3d
KV		 6884
6885 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6886
4c476991
JB		 6887 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6888 return -EINVAL;
ffb9eb3d
KV		 6889
6890 wdev = dev->ieee80211_ptr;
6891
4c476991
JB		 6892 if (!rdev->ops->set_power_mgmt)
6893 return -EOPNOTSUPP;
ffb9eb3d
KV		 6894
6895 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6896
6897 if (state == wdev->ps)
4c476991 6898 return 0;
ffb9eb3d 6899
e35e4d28 6900 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 6901 if (!err)
6902 wdev->ps = state;
ffb9eb3d
KV		 6903 return err;
6904}
6905
6906static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6907{
4c476991 6908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6909 enum nl80211_ps_state ps_state;
6910 struct wireless_dev *wdev;
4c476991 6911 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6912 struct sk_buff *msg;
6913 void *hdr;
6914 int err;
6915
ffb9eb3d
KV		 6916 wdev = dev->ieee80211_ptr;
6917
4c476991
JB		 6918 if (!rdev->ops->set_power_mgmt)
6919 return -EOPNOTSUPP;
ffb9eb3d
KV		 6920
6921 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6922 if (!msg)
6923 return -ENOMEM;
ffb9eb3d 6924
15e47304 6925 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6926 NL80211_CMD_GET_POWER_SAVE);
6927 if (!hdr) {
4c476991 6928 err = -ENOBUFS;
ffb9eb3d
KV		 6929 goto free_msg;
6930 }
6931
6932 if (wdev->ps)
6933 ps_state = NL80211_PS_ENABLED;
6934 else
6935 ps_state = NL80211_PS_DISABLED;
6936
9360ffd1
DM		 6937 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6938 goto nla_put_failure;
ffb9eb3d
KV		 6939
6940 genlmsg_end(msg, hdr);
4c476991 6941 return genlmsg_reply(msg, info);
ffb9eb3d 6942
4c476991 6943 nla_put_failure:
ffb9eb3d 6944 err = -ENOBUFS;
4c476991 6945 free_msg:
ffb9eb3d 6946 nlmsg_free(msg);
ffb9eb3d
KV		 6947 return err;
6948}
6949
d6dc1a38
JO		 6950static struct nla_policy
6951nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6952 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6953 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6954 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6955 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6956 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6957 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6958};
6959
84f10708 6960static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 6961 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 6962{
6963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6964 struct wireless_dev *wdev;
6965 struct net_device *dev = info->user_ptr[1];
6966
d9d8b019 6967 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 6968 return -EINVAL;
6969
6970 wdev = dev->ieee80211_ptr;
6971
6972 if (!rdev->ops->set_cqm_txe_config)
6973 return -EOPNOTSUPP;
6974
6975 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6976 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6977 return -EOPNOTSUPP;
6978
e35e4d28 6979 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 6980}
6981
d6dc1a38
JO		 6982static int nl80211_set_cqm_rssi(struct genl_info *info,
6983 s32 threshold, u32 hysteresis)
6984{
4c476991 6985 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6986 struct wireless_dev *wdev;
4c476991 6987 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6988
6989 if (threshold > 0)
6990 return -EINVAL;
6991
d6dc1a38
JO		 6992 wdev = dev->ieee80211_ptr;
6993
4c476991
JB		 6994 if (!rdev->ops->set_cqm_rssi_config)
6995 return -EOPNOTSUPP;
d6dc1a38 6996
074ac8df 6997 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6998 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6999 return -EOPNOTSUPP;
d6dc1a38 7000
e35e4d28 7001 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 7002}
7003
7004static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7005{
7006 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7007 struct nlattr *cqm;
7008 int err;
7009
7010 cqm = info->attrs[NL80211_ATTR_CQM];
7011 if (!cqm) {
7012 err = -EINVAL;
7013 goto out;
7014 }
7015
7016 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7017 nl80211_attr_cqm_policy);
7018 if (err)
7019 goto out;
7020
7021 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7022 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7023 s32 threshold;
7024 u32 hysteresis;
7025 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7026 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7027 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7028 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7029 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7030 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7031 u32 rate, pkts, intvl;
7032 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7033 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7034 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7035 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7036 } else
7037 err = -EINVAL;
7038
7039out:
7040 return err;
7041}
7042
29cbe68c
JB		 7043static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7044{
7045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7046 struct net_device *dev = info->user_ptr[1];
7047 struct mesh_config cfg;
c80d545d 7048 struct mesh_setup setup;
29cbe68c
JB		 7049 int err;
7050
7051 /* start with default */
7052 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7053 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7054
24bdd9f4 7055 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7056 /* and parse parameters if given */
24bdd9f4 7057 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7058 if (err)
7059 return err;
7060 }
7061
7062 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7063 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7064 return -EINVAL;
7065
c80d545d
JC		 7066 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7067 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7068
4bb62344
CYY		 7069 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7070 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7071 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7072 return -EINVAL;
7073
9bdbf04d
MP		 7074 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7075 setup.beacon_interval =
7076 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7077 if (setup.beacon_interval < 10 ||
7078 setup.beacon_interval > 10000)
7079 return -EINVAL;
7080 }
7081
7082 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7083 setup.dtim_period =
7084 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7085 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7086 return -EINVAL;
7087 }
7088
c80d545d
JC		 7089 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7090 /* parse additional setup parameters if given */
7091 err = nl80211_parse_mesh_setup(info, &setup);
7092 if (err)
7093 return err;
7094 }
7095
cc1d2806 7096 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7097 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7098 if (err)
7099 return err;
cc1d2806
JB		 7100 } else {
7101 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7102 setup.chandef.chan = NULL;
cc1d2806
JB		 7103 }
7104
c80d545d 7105 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7106}
7107
7108static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7109{
7110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7111 struct net_device *dev = info->user_ptr[1];
7112
7113 return cfg80211_leave_mesh(rdev, dev);
7114}
7115
dfb89c56 7116#ifdef CONFIG_PM
bb92d199
AK		 7117static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7118 struct cfg80211_registered_device *rdev)
7119{
7120 struct nlattr *nl_pats, *nl_pat;
7121 int i, pat_len;
7122
7123 if (!rdev->wowlan->n_patterns)
7124 return 0;
7125
7126 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7127 if (!nl_pats)
7128 return -ENOBUFS;
7129
7130 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7131 nl_pat = nla_nest_start(msg, i + 1);
7132 if (!nl_pat)
7133 return -ENOBUFS;
7134 pat_len = rdev->wowlan->patterns[i].pattern_len;
7135 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7136 DIV_ROUND_UP(pat_len, 8),
7137 rdev->wowlan->patterns[i].mask) ||
7138 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7139 pat_len, rdev->wowlan->patterns[i].pattern) ||
7140 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7141 rdev->wowlan->patterns[i].pkt_offset))
7142 return -ENOBUFS;
7143 nla_nest_end(msg, nl_pat);
7144 }
7145 nla_nest_end(msg, nl_pats);
7146
7147 return 0;
7148}
7149
2a0e047e
JB		 7150static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7151 struct cfg80211_wowlan_tcp *tcp)
7152{
7153 struct nlattr *nl_tcp;
7154
7155 if (!tcp)
7156 return 0;
7157
7158 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7159 if (!nl_tcp)
7160 return -ENOBUFS;
7161
7162 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7163 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7164 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7165 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7166 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7167 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7168 tcp->payload_len, tcp->payload) ||
7169 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7170 tcp->data_interval) ||
7171 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7172 tcp->wake_len, tcp->wake_data) ||
7173 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7174 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7175 return -ENOBUFS;
7176
7177 if (tcp->payload_seq.len &&
7178 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7179 sizeof(tcp->payload_seq), &tcp->payload_seq))
7180 return -ENOBUFS;
7181
7182 if (tcp->payload_tok.len &&
7183 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7184 sizeof(tcp->payload_tok) + tcp->tokens_size,
7185 &tcp->payload_tok))
7186 return -ENOBUFS;
7187
7188 return 0;
7189}
7190
ff1b6e69
JB		 7191static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7192{
7193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7194 struct sk_buff *msg;
7195 void *hdr;
2a0e047e 7196 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7197
2a0e047e
JB		 7198 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7199 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7200 return -EOPNOTSUPP;
7201
2a0e047e
JB		 7202 if (rdev->wowlan && rdev->wowlan->tcp) {
7203 /* adjust size to have room for all the data */
7204 size += rdev->wowlan->tcp->tokens_size +
7205 rdev->wowlan->tcp->payload_len +
7206 rdev->wowlan->tcp->wake_len +
7207 rdev->wowlan->tcp->wake_len / 8;
7208 }
7209
7210 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7211 if (!msg)
7212 return -ENOMEM;
7213
15e47304 7214 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7215 NL80211_CMD_GET_WOWLAN);
7216 if (!hdr)
7217 goto nla_put_failure;
7218
7219 if (rdev->wowlan) {
7220 struct nlattr *nl_wowlan;
7221
7222 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7223 if (!nl_wowlan)
7224 goto nla_put_failure;
7225
9360ffd1
DM		 7226 if ((rdev->wowlan->any &&
7227 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7228 (rdev->wowlan->disconnect &&
7229 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7230 (rdev->wowlan->magic_pkt &&
7231 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7232 (rdev->wowlan->gtk_rekey_failure &&
7233 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7234 (rdev->wowlan->eap_identity_req &&
7235 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7236 (rdev->wowlan->four_way_handshake &&
7237 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7238 (rdev->wowlan->rfkill_release &&
7239 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7240 goto nla_put_failure;
2a0e047e 7241
bb92d199
AK		 7242 if (nl80211_send_wowlan_patterns(msg, rdev))
7243 goto nla_put_failure;
2a0e047e
JB		 7244
7245 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7246 goto nla_put_failure;
7247
ff1b6e69
JB		 7248 nla_nest_end(msg, nl_wowlan);
7249 }
7250
7251 genlmsg_end(msg, hdr);
7252 return genlmsg_reply(msg, info);
7253
7254nla_put_failure:
7255 nlmsg_free(msg);
7256 return -ENOBUFS;
7257}
7258
2a0e047e
JB		 7259static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7260 struct nlattr *attr,
7261 struct cfg80211_wowlan *trig)
7262{
7263 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7264 struct cfg80211_wowlan_tcp *cfg;
7265 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7266 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7267 u32 size;
7268 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7269 int err, port;
7270
7271 if (!rdev->wiphy.wowlan.tcp)
7272 return -EINVAL;
7273
7274 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7275 nla_data(attr), nla_len(attr),
7276 nl80211_wowlan_tcp_policy);
7277 if (err)
7278 return err;
7279
7280 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7281 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7282 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7283 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7284 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7285 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7286 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7287 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7288 return -EINVAL;
7289
7290 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7291 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7292 return -EINVAL;
7293
7294 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7295 rdev->wiphy.wowlan.tcp->data_interval_max)
7296 return -EINVAL;
7297
7298 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7299 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7300 return -EINVAL;
7301
7302 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7303 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7304 return -EINVAL;
7305
7306 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7307 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7308
7309 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7310 tokens_size = tokln - sizeof(*tok);
7311
7312 if (!tok->len || tokens_size % tok->len)
7313 return -EINVAL;
7314 if (!rdev->wiphy.wowlan.tcp->tok)
7315 return -EINVAL;
7316 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7317 return -EINVAL;
7318 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7319 return -EINVAL;
7320 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7321 return -EINVAL;
7322 if (tok->offset + tok->len > data_size)
7323 return -EINVAL;
7324 }
7325
7326 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7327 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7328 if (!rdev->wiphy.wowlan.tcp->seq)
7329 return -EINVAL;
7330 if (seq->len == 0 || seq->len > 4)
7331 return -EINVAL;
7332 if (seq->len + seq->offset > data_size)
7333 return -EINVAL;
7334 }
7335
7336 size = sizeof(*cfg);
7337 size += data_size;
7338 size += wake_size + wake_mask_size;
7339 size += tokens_size;
7340
7341 cfg = kzalloc(size, GFP_KERNEL);
7342 if (!cfg)
7343 return -ENOMEM;
7344 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7345 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7346 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7347 ETH_ALEN);
7348 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7349 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7350 else
7351 port = 0;
7352#ifdef CONFIG_INET
7353 /* allocate a socket and port for it and use it */
7354 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7355 IPPROTO_TCP, &cfg->sock, 1);
7356 if (err) {
7357 kfree(cfg);
7358 return err;
7359 }
7360 if (inet_csk_get_port(cfg->sock->sk, port)) {
7361 sock_release(cfg->sock);
7362 kfree(cfg);
7363 return -EADDRINUSE;
7364 }
7365 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7366#else
7367 if (!port) {
7368 kfree(cfg);
7369 return -EINVAL;
7370 }
7371 cfg->src_port = port;
7372#endif
7373
7374 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7375 cfg->payload_len = data_size;
7376 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7377 memcpy((void *)cfg->payload,
7378 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7379 data_size);
7380 if (seq)
7381 cfg->payload_seq = *seq;
7382 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7383 cfg->wake_len = wake_size;
7384 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7385 memcpy((void *)cfg->wake_data,
7386 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7387 wake_size);
7388 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7389 data_size + wake_size;
7390 memcpy((void *)cfg->wake_mask,
7391 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7392 wake_mask_size);
7393 if (tok) {
7394 cfg->tokens_size = tokens_size;
7395 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7396 }
7397
7398 trig->tcp = cfg;
7399
7400 return 0;
7401}
7402
ff1b6e69
JB		 7403static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7404{
7405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7406 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7407 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7408 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 7409 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7410 int err, i;
6d52563f 7411 bool prev_enabled = rdev->wowlan;
ff1b6e69 7412
2a0e047e
JB		 7413 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7414 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7415 return -EOPNOTSUPP;
7416
ae33bd81
JB		 7417 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7418 cfg80211_rdev_free_wowlan(rdev);
7419 rdev->wowlan = NULL;
7420 goto set_wakeup;
7421 }
ff1b6e69
JB		 7422
7423 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7424 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7425 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7426 nl80211_wowlan_policy);
7427 if (err)
7428 return err;
7429
7430 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7431 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7432 return -EINVAL;
7433 new_triggers.any = true;
7434 }
7435
7436 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7437 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7438 return -EINVAL;
7439 new_triggers.disconnect = true;
7440 }
7441
7442 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7443 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7444 return -EINVAL;
7445 new_triggers.magic_pkt = true;
7446 }
7447
77dbbb13
JB		 7448 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7449 return -EINVAL;
7450
7451 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7452 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7453 return -EINVAL;
7454 new_triggers.gtk_rekey_failure = true;
7455 }
7456
7457 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7458 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7459 return -EINVAL;
7460 new_triggers.eap_identity_req = true;
7461 }
7462
7463 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7464 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7465 return -EINVAL;
7466 new_triggers.four_way_handshake = true;
7467 }
7468
7469 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7470 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7471 return -EINVAL;
7472 new_triggers.rfkill_release = true;
7473 }
7474
ff1b6e69
JB		 7475 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7476 struct nlattr *pat;
7477 int n_patterns = 0;
bb92d199 7478 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7479 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7480
7481 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7482 rem)
7483 n_patterns++;
7484 if (n_patterns > wowlan->n_patterns)
7485 return -EINVAL;
7486
7487 new_triggers.patterns = kcalloc(n_patterns,
7488 sizeof(new_triggers.patterns[0]),
7489 GFP_KERNEL);
7490 if (!new_triggers.patterns)
7491 return -ENOMEM;
7492
7493 new_triggers.n_patterns = n_patterns;
7494 i = 0;
7495
7496 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7497 rem) {
7498 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7499 nla_data(pat), nla_len(pat), NULL);
7500 err = -EINVAL;
7501 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7502 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7503 goto error;
7504 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7505 mask_len = DIV_ROUND_UP(pat_len, 8);
7506 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7507 mask_len)
7508 goto error;
7509 if (pat_len > wowlan->pattern_max_len ||
7510 pat_len < wowlan->pattern_min_len)
7511 goto error;
7512
bb92d199
AK		 7513 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7514 pkt_offset = 0;
7515 else
7516 pkt_offset = nla_get_u32(
7517 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7518 if (pkt_offset > wowlan->max_pkt_offset)
7519 goto error;
7520 new_triggers.patterns[i].pkt_offset = pkt_offset;
7521
ff1b6e69
JB		 7522 new_triggers.patterns[i].mask =
7523 kmalloc(mask_len + pat_len, GFP_KERNEL);
7524 if (!new_triggers.patterns[i].mask) {
7525 err = -ENOMEM;
7526 goto error;
7527 }
7528 new_triggers.patterns[i].pattern =
7529 new_triggers.patterns[i].mask + mask_len;
7530 memcpy(new_triggers.patterns[i].mask,
7531 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7532 mask_len);
7533 new_triggers.patterns[i].pattern_len = pat_len;
7534 memcpy(new_triggers.patterns[i].pattern,
7535 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7536 pat_len);
7537 i++;
7538 }
7539 }
7540
2a0e047e
JB		 7541 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7542 err = nl80211_parse_wowlan_tcp(
7543 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7544 &new_triggers);
7545 if (err)
7546 goto error;
7547 }
7548
ae33bd81
JB		 7549 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7550 if (!ntrig) {
7551 err = -ENOMEM;
7552 goto error;
ff1b6e69 7553 }
ae33bd81
JB		 7554 cfg80211_rdev_free_wowlan(rdev);
7555 rdev->wowlan = ntrig;
ff1b6e69 7556
ae33bd81 7557 set_wakeup:
6d52563f 7558 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 7559 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 7560
ff1b6e69
JB		 7561 return 0;
7562 error:
7563 for (i = 0; i < new_triggers.n_patterns; i++)
7564 kfree(new_triggers.patterns[i].mask);
7565 kfree(new_triggers.patterns);
2a0e047e
JB		 7566 if (new_triggers.tcp && new_triggers.tcp->sock)
7567 sock_release(new_triggers.tcp->sock);
7568 kfree(new_triggers.tcp);
ff1b6e69
JB		 7569 return err;
7570}
dfb89c56 7571#endif
ff1b6e69 7572
e5497d76
JB		 7573static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7574{
7575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7576 struct net_device *dev = info->user_ptr[1];
7577 struct wireless_dev *wdev = dev->ieee80211_ptr;
7578 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7579 struct cfg80211_gtk_rekey_data rekey_data;
7580 int err;
7581
7582 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7583 return -EINVAL;
7584
7585 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7586 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7587 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7588 nl80211_rekey_policy);
7589 if (err)
7590 return err;
7591
7592 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7593 return -ERANGE;
7594 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7595 return -ERANGE;
7596 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7597 return -ERANGE;
7598
7599 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7600 NL80211_KEK_LEN);
7601 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7602 NL80211_KCK_LEN);
7603 memcpy(rekey_data.replay_ctr,
7604 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7605 NL80211_REPLAY_CTR_LEN);
7606
7607 wdev_lock(wdev);
7608 if (!wdev->current_bss) {
7609 err = -ENOTCONN;
7610 goto out;
7611 }
7612
7613 if (!rdev->ops->set_rekey_data) {
7614 err = -EOPNOTSUPP;
7615 goto out;
7616 }
7617
e35e4d28 7618 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 7619 out:
7620 wdev_unlock(wdev);
7621 return err;
7622}
7623
28946da7
JB		 7624static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7625 struct genl_info *info)
7626{
7627 struct net_device *dev = info->user_ptr[1];
7628 struct wireless_dev *wdev = dev->ieee80211_ptr;
7629
7630 if (wdev->iftype != NL80211_IFTYPE_AP &&
7631 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7632 return -EINVAL;
7633
15e47304 7634 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 7635 return -EBUSY;
7636
15e47304 7637 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 7638 return 0;
7639}
7640
7f6cf311
JB		 7641static int nl80211_probe_client(struct sk_buff *skb,
7642 struct genl_info *info)
7643{
7644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7645 struct net_device *dev = info->user_ptr[1];
7646 struct wireless_dev *wdev = dev->ieee80211_ptr;
7647 struct sk_buff *msg;
7648 void *hdr;
7649 const u8 *addr;
7650 u64 cookie;
7651 int err;
7652
7653 if (wdev->iftype != NL80211_IFTYPE_AP &&
7654 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7655 return -EOPNOTSUPP;
7656
7657 if (!info->attrs[NL80211_ATTR_MAC])
7658 return -EINVAL;
7659
7660 if (!rdev->ops->probe_client)
7661 return -EOPNOTSUPP;
7662
7663 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7664 if (!msg)
7665 return -ENOMEM;
7666
15e47304 7667 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 7668 NL80211_CMD_PROBE_CLIENT);
7669
7670 if (IS_ERR(hdr)) {
7671 err = PTR_ERR(hdr);
7672 goto free_msg;
7673 }
7674
7675 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7676
e35e4d28 7677 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 7678 if (err)
7679 goto free_msg;
7680
9360ffd1
DM		 7681 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7682 goto nla_put_failure;
7f6cf311
JB		 7683
7684 genlmsg_end(msg, hdr);
7685
7686 return genlmsg_reply(msg, info);
7687
7688 nla_put_failure:
7689 err = -ENOBUFS;
7690 free_msg:
7691 nlmsg_free(msg);
7692 return err;
7693}
7694
5e760230
JB		 7695static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7696{
7697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 7698 struct cfg80211_beacon_registration *reg, *nreg;
7699 int rv;
5e760230
JB		 7700
7701 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7702 return -EOPNOTSUPP;
7703
37c73b5f
BG		 7704 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7705 if (!nreg)
7706 return -ENOMEM;
7707
7708 /* First, check if already registered. */
7709 spin_lock_bh(&rdev->beacon_registrations_lock);
7710 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7711 if (reg->nlportid == info->snd_portid) {
7712 rv = -EALREADY;
7713 goto out_err;
7714 }
7715 }
7716 /* Add it to the list */
7717 nreg->nlportid = info->snd_portid;
7718 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 7719
37c73b5f 7720 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 7721
7722 return 0;
37c73b5f
BG		 7723out_err:
7724 spin_unlock_bh(&rdev->beacon_registrations_lock);
7725 kfree(nreg);
7726 return rv;
5e760230
JB		 7727}
7728
98104fde
JB		 7729static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7730{
7731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7732 struct wireless_dev *wdev = info->user_ptr[1];
7733 int err;
7734
7735 if (!rdev->ops->start_p2p_device)
7736 return -EOPNOTSUPP;
7737
7738 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7739 return -EOPNOTSUPP;
7740
7741 if (wdev->p2p_started)
7742 return 0;
7743
7744 mutex_lock(&rdev->devlist_mtx);
7745 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7746 mutex_unlock(&rdev->devlist_mtx);
7747 if (err)
7748 return err;
7749
eeb126e9 7750 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 7751 if (err)
7752 return err;
7753
7754 wdev->p2p_started = true;
7755 mutex_lock(&rdev->devlist_mtx);
7756 rdev->opencount++;
7757 mutex_unlock(&rdev->devlist_mtx);
7758
7759 return 0;
7760}
7761
7762static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7763{
7764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7765 struct wireless_dev *wdev = info->user_ptr[1];
7766
7767 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7768 return -EOPNOTSUPP;
7769
7770 if (!rdev->ops->stop_p2p_device)
7771 return -EOPNOTSUPP;
7772
7773 if (!wdev->p2p_started)
7774 return 0;
7775
eeb126e9 7776 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 7777 wdev->p2p_started = false;
7778
7779 mutex_lock(&rdev->devlist_mtx);
7780 rdev->opencount--;
7781 mutex_unlock(&rdev->devlist_mtx);
7782
7783 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7784 rdev->scan_req->aborted = true;
7785 ___cfg80211_scan_done(rdev, true);
7786 }
7787
7788 return 0;
7789}
7790
4c476991
JB		 7791#define NL80211_FLAG_NEED_WIPHY 0x01
7792#define NL80211_FLAG_NEED_NETDEV 0x02
7793#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 7794#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7795#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7796 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 7797#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 7798/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 7799#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7800 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 7801
7802static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7803 struct genl_info *info)
7804{
7805 struct cfg80211_registered_device *rdev;
89a54e48 7806 struct wireless_dev *wdev;
4c476991 7807 struct net_device *dev;
4c476991
JB		 7808 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7809
7810 if (rtnl)
7811 rtnl_lock();
7812
7813 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 7814 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 7815 if (IS_ERR(rdev)) {
7816 if (rtnl)
7817 rtnl_unlock();
7818 return PTR_ERR(rdev);
7819 }
7820 info->user_ptr[0] = rdev;
1bf614ef
JB		 7821 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7822 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7823 mutex_lock(&cfg80211_mutex);
7824 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7825 info->attrs);
7826 if (IS_ERR(wdev)) {
7827 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7828 if (rtnl)
7829 rtnl_unlock();
89a54e48 7830 return PTR_ERR(wdev);
4c476991 7831 }
89a54e48 7832
89a54e48
JB		 7833 dev = wdev->netdev;
7834 rdev = wiphy_to_dev(wdev->wiphy);
7835
1bf614ef
JB		 7836 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7837 if (!dev) {
7838 mutex_unlock(&cfg80211_mutex);
7839 if (rtnl)
7840 rtnl_unlock();
7841 return -EINVAL;
7842 }
7843
7844 info->user_ptr[1] = dev;
7845 } else {
7846 info->user_ptr[1] = wdev;
41265714 7847 }
1bf614ef
JB		 7848
7849 if (dev) {
7850 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7851 !netif_running(dev)) {
7852 mutex_unlock(&cfg80211_mutex);
7853 if (rtnl)
7854 rtnl_unlock();
7855 return -ENETDOWN;
7856 }
7857
7858 dev_hold(dev);
98104fde
JB		 7859 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7860 if (!wdev->p2p_started) {
7861 mutex_unlock(&cfg80211_mutex);
7862 if (rtnl)
7863 rtnl_unlock();
7864 return -ENETDOWN;
7865 }
41265714 7866 }
89a54e48 7867
89a54e48
JB		 7868 cfg80211_lock_rdev(rdev);
7869
7870 mutex_unlock(&cfg80211_mutex);
7871
4c476991 7872 info->user_ptr[0] = rdev;
4c476991
JB		 7873 }
7874
7875 return 0;
7876}
7877
7878static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7879 struct genl_info *info)
7880{
7881 if (info->user_ptr[0])
7882 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7883 if (info->user_ptr[1]) {
7884 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7885 struct wireless_dev *wdev = info->user_ptr[1];
7886
7887 if (wdev->netdev)
7888 dev_put(wdev->netdev);
7889 } else {
7890 dev_put(info->user_ptr[1]);
7891 }
7892 }
4c476991
JB		 7893 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7894 rtnl_unlock();
7895}
7896
55682965
JB		 7897static struct genl_ops nl80211_ops[] = {
7898 {
7899 .cmd = NL80211_CMD_GET_WIPHY,
7900 .doit = nl80211_get_wiphy,
7901 .dumpit = nl80211_dump_wiphy,
7902 .policy = nl80211_policy,
7903 /* can be retrieved by unprivileged users */
4c476991 7904 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7905 },
7906 {
7907 .cmd = NL80211_CMD_SET_WIPHY,
7908 .doit = nl80211_set_wiphy,
7909 .policy = nl80211_policy,
7910 .flags = GENL_ADMIN_PERM,
4c476991 7911 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7912 },
7913 {
7914 .cmd = NL80211_CMD_GET_INTERFACE,
7915 .doit = nl80211_get_interface,
7916 .dumpit = nl80211_dump_interface,
7917 .policy = nl80211_policy,
7918 /* can be retrieved by unprivileged users */
72fb2abc 7919 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7920 },
7921 {
7922 .cmd = NL80211_CMD_SET_INTERFACE,
7923 .doit = nl80211_set_interface,
7924 .policy = nl80211_policy,
7925 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7926 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7927 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7928 },
7929 {
7930 .cmd = NL80211_CMD_NEW_INTERFACE,
7931 .doit = nl80211_new_interface,
7932 .policy = nl80211_policy,
7933 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7934 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7935 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7936 },
7937 {
7938 .cmd = NL80211_CMD_DEL_INTERFACE,
7939 .doit = nl80211_del_interface,
7940 .policy = nl80211_policy,
41ade00f 7941 .flags = GENL_ADMIN_PERM,
84efbb84 7942 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7943 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7944 },
7945 {
7946 .cmd = NL80211_CMD_GET_KEY,
7947 .doit = nl80211_get_key,
7948 .policy = nl80211_policy,
7949 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7950 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7951 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7952 },
7953 {
7954 .cmd = NL80211_CMD_SET_KEY,
7955 .doit = nl80211_set_key,
7956 .policy = nl80211_policy,
7957 .flags = GENL_ADMIN_PERM,
41265714 7958 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7959 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7960 },
7961 {
7962 .cmd = NL80211_CMD_NEW_KEY,
7963 .doit = nl80211_new_key,
7964 .policy = nl80211_policy,
7965 .flags = GENL_ADMIN_PERM,
41265714 7966 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7967 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7968 },
7969 {
7970 .cmd = NL80211_CMD_DEL_KEY,
7971 .doit = nl80211_del_key,
7972 .policy = nl80211_policy,
55682965 7973 .flags = GENL_ADMIN_PERM,
41265714 7974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7975 NL80211_FLAG_NEED_RTNL,
55682965 7976 },
ed1b6cc7
JB		 7977 {
7978 .cmd = NL80211_CMD_SET_BEACON,
7979 .policy = nl80211_policy,
7980 .flags = GENL_ADMIN_PERM,
8860020e 7981 .doit = nl80211_set_beacon,
2b5f8b0b 7982 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7983 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7984 },
7985 {
8860020e 7986 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7987 .policy = nl80211_policy,
7988 .flags = GENL_ADMIN_PERM,
8860020e 7989 .doit = nl80211_start_ap,
2b5f8b0b 7990 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7991 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7992 },
7993 {
8860020e 7994 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7995 .policy = nl80211_policy,
7996 .flags = GENL_ADMIN_PERM,
8860020e 7997 .doit = nl80211_stop_ap,
2b5f8b0b 7998 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7999 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 8000 },
5727ef1b
JB		 8001 {
8002 .cmd = NL80211_CMD_GET_STATION,
8003 .doit = nl80211_get_station,
2ec600d6 8004 .dumpit = nl80211_dump_station,
5727ef1b 8005 .policy = nl80211_policy,
4c476991
JB		 8006 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8007 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8008 },
8009 {
8010 .cmd = NL80211_CMD_SET_STATION,
8011 .doit = nl80211_set_station,
8012 .policy = nl80211_policy,
8013 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8014 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8015 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8016 },
8017 {
8018 .cmd = NL80211_CMD_NEW_STATION,
8019 .doit = nl80211_new_station,
8020 .policy = nl80211_policy,
8021 .flags = GENL_ADMIN_PERM,
41265714 8022 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8023 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8024 },
8025 {
8026 .cmd = NL80211_CMD_DEL_STATION,
8027 .doit = nl80211_del_station,
8028 .policy = nl80211_policy,
2ec600d6 8029 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8030 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8031 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8032 },
8033 {
8034 .cmd = NL80211_CMD_GET_MPATH,
8035 .doit = nl80211_get_mpath,
8036 .dumpit = nl80211_dump_mpath,
8037 .policy = nl80211_policy,
8038 .flags = GENL_ADMIN_PERM,
41265714 8039 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8040 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8041 },
8042 {
8043 .cmd = NL80211_CMD_SET_MPATH,
8044 .doit = nl80211_set_mpath,
8045 .policy = nl80211_policy,
8046 .flags = GENL_ADMIN_PERM,
41265714 8047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8048 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8049 },
8050 {
8051 .cmd = NL80211_CMD_NEW_MPATH,
8052 .doit = nl80211_new_mpath,
8053 .policy = nl80211_policy,
8054 .flags = GENL_ADMIN_PERM,
41265714 8055 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8056 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8057 },
8058 {
8059 .cmd = NL80211_CMD_DEL_MPATH,
8060 .doit = nl80211_del_mpath,
8061 .policy = nl80211_policy,
9f1ba906 8062 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8063 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8064 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8065 },
8066 {
8067 .cmd = NL80211_CMD_SET_BSS,
8068 .doit = nl80211_set_bss,
8069 .policy = nl80211_policy,
b2e1b302 8070 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8071 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8072 NL80211_FLAG_NEED_RTNL,
b2e1b302 8073 },
f130347c
LR		 8074 {
8075 .cmd = NL80211_CMD_GET_REG,
8076 .doit = nl80211_get_reg,
8077 .policy = nl80211_policy,
8078 /* can be retrieved by unprivileged users */
8079 },
b2e1b302
LR		 8080 {
8081 .cmd = NL80211_CMD_SET_REG,
8082 .doit = nl80211_set_reg,
8083 .policy = nl80211_policy,
8084 .flags = GENL_ADMIN_PERM,
8085 },
8086 {
8087 .cmd = NL80211_CMD_REQ_SET_REG,
8088 .doit = nl80211_req_set_reg,
8089 .policy = nl80211_policy,
93da9cc1 8090 .flags = GENL_ADMIN_PERM,
8091 },
8092 {
24bdd9f4
JC		 8093 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8094 .doit = nl80211_get_mesh_config,
93da9cc1 8095 .policy = nl80211_policy,
8096 /* can be retrieved by unprivileged users */
2b5f8b0b 8097 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8098 NL80211_FLAG_NEED_RTNL,
93da9cc1 8099 },
8100 {
24bdd9f4
JC		 8101 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8102 .doit = nl80211_update_mesh_config,
93da9cc1 8103 .policy = nl80211_policy,
9aed3cc1 8104 .flags = GENL_ADMIN_PERM,
29cbe68c 8105 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8106 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8107 },
2a519311
JB		 8108 {
8109 .cmd = NL80211_CMD_TRIGGER_SCAN,
8110 .doit = nl80211_trigger_scan,
8111 .policy = nl80211_policy,
8112 .flags = GENL_ADMIN_PERM,
fd014284 8113 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8114 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8115 },
8116 {
8117 .cmd = NL80211_CMD_GET_SCAN,
8118 .policy = nl80211_policy,
8119 .dumpit = nl80211_dump_scan,
8120 },
807f8a8c
LC		 8121 {
8122 .cmd = NL80211_CMD_START_SCHED_SCAN,
8123 .doit = nl80211_start_sched_scan,
8124 .policy = nl80211_policy,
8125 .flags = GENL_ADMIN_PERM,
8126 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8127 NL80211_FLAG_NEED_RTNL,
8128 },
8129 {
8130 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8131 .doit = nl80211_stop_sched_scan,
8132 .policy = nl80211_policy,
8133 .flags = GENL_ADMIN_PERM,
8134 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8135 NL80211_FLAG_NEED_RTNL,
8136 },
636a5d36
JM		 8137 {
8138 .cmd = NL80211_CMD_AUTHENTICATE,
8139 .doit = nl80211_authenticate,
8140 .policy = nl80211_policy,
8141 .flags = GENL_ADMIN_PERM,
41265714 8142 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8143 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8144 },
8145 {
8146 .cmd = NL80211_CMD_ASSOCIATE,
8147 .doit = nl80211_associate,
8148 .policy = nl80211_policy,
8149 .flags = GENL_ADMIN_PERM,
41265714 8150 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8151 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8152 },
8153 {
8154 .cmd = NL80211_CMD_DEAUTHENTICATE,
8155 .doit = nl80211_deauthenticate,
8156 .policy = nl80211_policy,
8157 .flags = GENL_ADMIN_PERM,
41265714 8158 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8159 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8160 },
8161 {
8162 .cmd = NL80211_CMD_DISASSOCIATE,
8163 .doit = nl80211_disassociate,
8164 .policy = nl80211_policy,
8165 .flags = GENL_ADMIN_PERM,
41265714 8166 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8167 NL80211_FLAG_NEED_RTNL,
636a5d36 8168 },
04a773ad
JB		 8169 {
8170 .cmd = NL80211_CMD_JOIN_IBSS,
8171 .doit = nl80211_join_ibss,
8172 .policy = nl80211_policy,
8173 .flags = GENL_ADMIN_PERM,
41265714 8174 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8175 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8176 },
8177 {
8178 .cmd = NL80211_CMD_LEAVE_IBSS,
8179 .doit = nl80211_leave_ibss,
8180 .policy = nl80211_policy,
8181 .flags = GENL_ADMIN_PERM,
41265714 8182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8183 NL80211_FLAG_NEED_RTNL,
04a773ad 8184 },
aff89a9b
JB		 8185#ifdef CONFIG_NL80211_TESTMODE
8186 {
8187 .cmd = NL80211_CMD_TESTMODE,
8188 .doit = nl80211_testmode_do,
71063f0e 8189 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8190 .policy = nl80211_policy,
8191 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8192 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8193 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8194 },
8195#endif
b23aa676
SO		 8196 {
8197 .cmd = NL80211_CMD_CONNECT,
8198 .doit = nl80211_connect,
8199 .policy = nl80211_policy,
8200 .flags = GENL_ADMIN_PERM,
41265714 8201 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8202 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8203 },
8204 {
8205 .cmd = NL80211_CMD_DISCONNECT,
8206 .doit = nl80211_disconnect,
8207 .policy = nl80211_policy,
8208 .flags = GENL_ADMIN_PERM,
41265714 8209 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8210 NL80211_FLAG_NEED_RTNL,
b23aa676 8211 },
463d0183
JB		 8212 {
8213 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8214 .doit = nl80211_wiphy_netns,
8215 .policy = nl80211_policy,
8216 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8217 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8218 NL80211_FLAG_NEED_RTNL,
463d0183 8219 },
61fa713c
HS		 8220 {
8221 .cmd = NL80211_CMD_GET_SURVEY,
8222 .policy = nl80211_policy,
8223 .dumpit = nl80211_dump_survey,
8224 },
67fbb16b
SO		 8225 {
8226 .cmd = NL80211_CMD_SET_PMKSA,
8227 .doit = nl80211_setdel_pmksa,
8228 .policy = nl80211_policy,
8229 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8230 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8231 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8232 },
8233 {
8234 .cmd = NL80211_CMD_DEL_PMKSA,
8235 .doit = nl80211_setdel_pmksa,
8236 .policy = nl80211_policy,
8237 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8238 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8239 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8240 },
8241 {
8242 .cmd = NL80211_CMD_FLUSH_PMKSA,
8243 .doit = nl80211_flush_pmksa,
8244 .policy = nl80211_policy,
8245 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8246 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8247 NL80211_FLAG_NEED_RTNL,
67fbb16b 8248 },
9588bbd5
JM		 8249 {
8250 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8251 .doit = nl80211_remain_on_channel,
8252 .policy = nl80211_policy,
8253 .flags = GENL_ADMIN_PERM,
71bbc994 8254 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8255 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8256 },
8257 {
8258 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8259 .doit = nl80211_cancel_remain_on_channel,
8260 .policy = nl80211_policy,
8261 .flags = GENL_ADMIN_PERM,
71bbc994 8262 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8263 NL80211_FLAG_NEED_RTNL,
9588bbd5 8264 },
13ae75b1
JM		 8265 {
8266 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8267 .doit = nl80211_set_tx_bitrate_mask,
8268 .policy = nl80211_policy,
8269 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8270 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8271 NL80211_FLAG_NEED_RTNL,
13ae75b1 8272 },
026331c4 8273 {
2e161f78
JB		 8274 .cmd = NL80211_CMD_REGISTER_FRAME,
8275 .doit = nl80211_register_mgmt,
026331c4
JM		 8276 .policy = nl80211_policy,
8277 .flags = GENL_ADMIN_PERM,
71bbc994 8278 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8279 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8280 },
8281 {
2e161f78
JB		 8282 .cmd = NL80211_CMD_FRAME,
8283 .doit = nl80211_tx_mgmt,
026331c4 8284 .policy = nl80211_policy,
f7ca38df 8285 .flags = GENL_ADMIN_PERM,
71bbc994 8286 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8287 NL80211_FLAG_NEED_RTNL,
8288 },
8289 {
8290 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8291 .doit = nl80211_tx_mgmt_cancel_wait,
8292 .policy = nl80211_policy,
026331c4 8293 .flags = GENL_ADMIN_PERM,
71bbc994 8294 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8295 NL80211_FLAG_NEED_RTNL,
026331c4 8296 },
ffb9eb3d
KV		 8297 {
8298 .cmd = NL80211_CMD_SET_POWER_SAVE,
8299 .doit = nl80211_set_power_save,
8300 .policy = nl80211_policy,
8301 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8302 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8303 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8304 },
8305 {
8306 .cmd = NL80211_CMD_GET_POWER_SAVE,
8307 .doit = nl80211_get_power_save,
8308 .policy = nl80211_policy,
8309 /* can be retrieved by unprivileged users */
4c476991
JB		 8310 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8311 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8312 },
d6dc1a38
JO		 8313 {
8314 .cmd = NL80211_CMD_SET_CQM,
8315 .doit = nl80211_set_cqm,
8316 .policy = nl80211_policy,
8317 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8318 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8319 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8320 },
f444de05
JB		 8321 {
8322 .cmd = NL80211_CMD_SET_CHANNEL,
8323 .doit = nl80211_set_channel,
8324 .policy = nl80211_policy,
8325 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8326 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8327 NL80211_FLAG_NEED_RTNL,
f444de05 8328 },
e8347eba
BJ		 8329 {
8330 .cmd = NL80211_CMD_SET_WDS_PEER,
8331 .doit = nl80211_set_wds_peer,
8332 .policy = nl80211_policy,
8333 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8334 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8335 NL80211_FLAG_NEED_RTNL,
e8347eba 8336 },
29cbe68c
JB		 8337 {
8338 .cmd = NL80211_CMD_JOIN_MESH,
8339 .doit = nl80211_join_mesh,
8340 .policy = nl80211_policy,
8341 .flags = GENL_ADMIN_PERM,
8342 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8343 NL80211_FLAG_NEED_RTNL,
8344 },
8345 {
8346 .cmd = NL80211_CMD_LEAVE_MESH,
8347 .doit = nl80211_leave_mesh,
8348 .policy = nl80211_policy,
8349 .flags = GENL_ADMIN_PERM,
8350 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8351 NL80211_FLAG_NEED_RTNL,
8352 },
dfb89c56 8353#ifdef CONFIG_PM
ff1b6e69
JB		 8354 {
8355 .cmd = NL80211_CMD_GET_WOWLAN,
8356 .doit = nl80211_get_wowlan,
8357 .policy = nl80211_policy,
8358 /* can be retrieved by unprivileged users */
8359 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8360 NL80211_FLAG_NEED_RTNL,
8361 },
8362 {
8363 .cmd = NL80211_CMD_SET_WOWLAN,
8364 .doit = nl80211_set_wowlan,
8365 .policy = nl80211_policy,
8366 .flags = GENL_ADMIN_PERM,
8367 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8368 NL80211_FLAG_NEED_RTNL,
8369 },
dfb89c56 8370#endif
e5497d76
JB		 8371 {
8372 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8373 .doit = nl80211_set_rekey_data,
8374 .policy = nl80211_policy,
8375 .flags = GENL_ADMIN_PERM,
8376 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8377 NL80211_FLAG_NEED_RTNL,
8378 },
109086ce
AN		 8379 {
8380 .cmd = NL80211_CMD_TDLS_MGMT,
8381 .doit = nl80211_tdls_mgmt,
8382 .policy = nl80211_policy,
8383 .flags = GENL_ADMIN_PERM,
8384 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8385 NL80211_FLAG_NEED_RTNL,
8386 },
8387 {
8388 .cmd = NL80211_CMD_TDLS_OPER,
8389 .doit = nl80211_tdls_oper,
8390 .policy = nl80211_policy,
8391 .flags = GENL_ADMIN_PERM,
8392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8393 NL80211_FLAG_NEED_RTNL,
8394 },
28946da7
JB		 8395 {
8396 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8397 .doit = nl80211_register_unexpected_frame,
8398 .policy = nl80211_policy,
8399 .flags = GENL_ADMIN_PERM,
8400 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8401 NL80211_FLAG_NEED_RTNL,
8402 },
7f6cf311
JB		 8403 {
8404 .cmd = NL80211_CMD_PROBE_CLIENT,
8405 .doit = nl80211_probe_client,
8406 .policy = nl80211_policy,
8407 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8409 NL80211_FLAG_NEED_RTNL,
8410 },
5e760230
JB		 8411 {
8412 .cmd = NL80211_CMD_REGISTER_BEACONS,
8413 .doit = nl80211_register_beacons,
8414 .policy = nl80211_policy,
8415 .flags = GENL_ADMIN_PERM,
8416 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8417 NL80211_FLAG_NEED_RTNL,
8418 },
1d9d9213
SW		 8419 {
8420 .cmd = NL80211_CMD_SET_NOACK_MAP,
8421 .doit = nl80211_set_noack_map,
8422 .policy = nl80211_policy,
8423 .flags = GENL_ADMIN_PERM,
8424 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8425 NL80211_FLAG_NEED_RTNL,
8426 },
98104fde
JB		 8427 {
8428 .cmd = NL80211_CMD_START_P2P_DEVICE,
8429 .doit = nl80211_start_p2p_device,
8430 .policy = nl80211_policy,
8431 .flags = GENL_ADMIN_PERM,
8432 .internal_flags = NL80211_FLAG_NEED_WDEV |
8433 NL80211_FLAG_NEED_RTNL,
8434 },
8435 {
8436 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8437 .doit = nl80211_stop_p2p_device,
8438 .policy = nl80211_policy,
8439 .flags = GENL_ADMIN_PERM,
8440 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8441 NL80211_FLAG_NEED_RTNL,
8442 },
f4e583c8
AQ		 8443 {
8444 .cmd = NL80211_CMD_SET_MCAST_RATE,
8445 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8446 .policy = nl80211_policy,
8447 .flags = GENL_ADMIN_PERM,
8448 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8449 NL80211_FLAG_NEED_RTNL,
8450 },
8451 {
8452 .cmd = NL80211_CMD_SET_MAC_ACL,
8453 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8454 .policy = nl80211_policy,
8455 .flags = GENL_ADMIN_PERM,
8456 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8457 NL80211_FLAG_NEED_RTNL,
8458 },
04f39047
SW		 8459 {
8460 .cmd = NL80211_CMD_RADAR_DETECT,
8461 .doit = nl80211_start_radar_detection,
8462 .policy = nl80211_policy,
8463 .flags = GENL_ADMIN_PERM,
8464 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8465 NL80211_FLAG_NEED_RTNL,
8466 },
55682965 8467};
9588bbd5 8468
6039f6d2
JM		 8469static struct genl_multicast_group nl80211_mlme_mcgrp = {
8470 .name = "mlme",
8471};
55682965
JB		 8472
8473/* multicast groups */
8474static struct genl_multicast_group nl80211_config_mcgrp = {
8475 .name = "config",
8476};
2a519311
JB		 8477static struct genl_multicast_group nl80211_scan_mcgrp = {
8478 .name = "scan",
8479};
73d54c9e
LR		 8480static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8481 .name = "regulatory",
8482};
55682965
JB		 8483
8484/* notification functions */
8485
8486void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8487{
8488 struct sk_buff *msg;
8489
fd2120ca 8490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 8491 if (!msg)
8492 return;
8493
8494 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
8495 nlmsg_free(msg);
8496 return;
8497 }
8498
463d0183
JB		 8499 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8500 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 8501}
8502
362a415d
JB		 8503static int nl80211_add_scan_req(struct sk_buff *msg,
8504 struct cfg80211_registered_device *rdev)
8505{
8506 struct cfg80211_scan_request *req = rdev->scan_req;
8507 struct nlattr *nest;
8508 int i;
8509
667503dd
JB		 8510 ASSERT_RDEV_LOCK(rdev);
8511
362a415d
JB		 8512 if (WARN_ON(!req))
8513 return 0;
8514
8515 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8516 if (!nest)
8517 goto nla_put_failure;
9360ffd1
DM		 8518 for (i = 0; i < req->n_ssids; i++) {
8519 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8520 goto nla_put_failure;
8521 }
362a415d
JB		 8522 nla_nest_end(msg, nest);
8523
8524 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8525 if (!nest)
8526 goto nla_put_failure;
9360ffd1
DM		 8527 for (i = 0; i < req->n_channels; i++) {
8528 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8529 goto nla_put_failure;
8530 }
362a415d
JB		 8531 nla_nest_end(msg, nest);
8532
9360ffd1
DM		 8533 if (req->ie &&
8534 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8535 goto nla_put_failure;
362a415d 8536
ed473771
SL		 8537 if (req->flags)
8538 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8539
362a415d
JB		 8540 return 0;
8541 nla_put_failure:
8542 return -ENOBUFS;
8543}
8544
a538e2d5
JB		 8545static int nl80211_send_scan_msg(struct sk_buff *msg,
8546 struct cfg80211_registered_device *rdev,
fd014284 8547 struct wireless_dev *wdev,
15e47304 8548 u32 portid, u32 seq, int flags,
a538e2d5 8549 u32 cmd)
2a519311
JB		 8550{
8551 void *hdr;
8552
15e47304 8553 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 8554 if (!hdr)
8555 return -1;
8556
9360ffd1 8557 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 8558 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8559 wdev->netdev->ifindex)) ||
8560 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 8561 goto nla_put_failure;
2a519311 8562
362a415d
JB		 8563 /* ignore errors and send incomplete event anyway */
8564 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 8565
8566 return genlmsg_end(msg, hdr);
8567
8568 nla_put_failure:
8569 genlmsg_cancel(msg, hdr);
8570 return -EMSGSIZE;
8571}
8572
807f8a8c
LC		 8573static int
8574nl80211_send_sched_scan_msg(struct sk_buff *msg,
8575 struct cfg80211_registered_device *rdev,
8576 struct net_device *netdev,
15e47304 8577 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 8578{
8579 void *hdr;
8580
15e47304 8581 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 8582 if (!hdr)
8583 return -1;
8584
9360ffd1
DM		 8585 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8586 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8587 goto nla_put_failure;
807f8a8c
LC		 8588
8589 return genlmsg_end(msg, hdr);
8590
8591 nla_put_failure:
8592 genlmsg_cancel(msg, hdr);
8593 return -EMSGSIZE;
8594}
8595
a538e2d5 8596void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 8597 struct wireless_dev *wdev)
a538e2d5
JB		 8598{
8599 struct sk_buff *msg;
8600
58050fce 8601 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 8602 if (!msg)
8603 return;
8604
fd014284 8605 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 8606 NL80211_CMD_TRIGGER_SCAN) < 0) {
8607 nlmsg_free(msg);
8608 return;
8609 }
8610
463d0183
JB		 8611 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8612 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 8613}
8614
2a519311 8615void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 8616 struct wireless_dev *wdev)
2a519311
JB		 8617{
8618 struct sk_buff *msg;
8619
fd2120ca 8620 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8621 if (!msg)
8622 return;
8623
fd014284 8624 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8625 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 8626 nlmsg_free(msg);
8627 return;
8628 }
8629
463d0183
JB		 8630 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8631 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8632}
8633
8634void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 8635 struct wireless_dev *wdev)
2a519311
JB		 8636{
8637 struct sk_buff *msg;
8638
fd2120ca 8639 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8640 if (!msg)
8641 return;
8642
fd014284 8643 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8644 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 8645 nlmsg_free(msg);
8646 return;
8647 }
8648
463d0183
JB		 8649 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8650 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8651}
8652
807f8a8c
LC		 8653void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8654 struct net_device *netdev)
8655{
8656 struct sk_buff *msg;
8657
8658 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8659 if (!msg)
8660 return;
8661
8662 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8663 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8664 nlmsg_free(msg);
8665 return;
8666 }
8667
8668 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8669 nl80211_scan_mcgrp.id, GFP_KERNEL);
8670}
8671
8672void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8673 struct net_device *netdev, u32 cmd)
8674{
8675 struct sk_buff *msg;
8676
58050fce 8677 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 8678 if (!msg)
8679 return;
8680
8681 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8682 nlmsg_free(msg);
8683 return;
8684 }
8685
8686 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8687 nl80211_scan_mcgrp.id, GFP_KERNEL);
8688}
8689
73d54c9e
LR		 8690/*
8691 * This can happen on global regulatory changes or device specific settings
8692 * based on custom world regulatory domains.
8693 */
8694void nl80211_send_reg_change_event(struct regulatory_request *request)
8695{
8696 struct sk_buff *msg;
8697 void *hdr;
8698
fd2120ca 8699 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 8700 if (!msg)
8701 return;
8702
8703 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8704 if (!hdr) {
8705 nlmsg_free(msg);
8706 return;
8707 }
8708
8709 /* Userspace can always count this one always being set */
9360ffd1
DM		 8710 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8711 goto nla_put_failure;
8712
8713 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8714 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8715 NL80211_REGDOM_TYPE_WORLD))
8716 goto nla_put_failure;
8717 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8718 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8719 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8720 goto nla_put_failure;
8721 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8722 request->intersect) {
8723 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8724 NL80211_REGDOM_TYPE_INTERSECTION))
8725 goto nla_put_failure;
8726 } else {
8727 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8728 NL80211_REGDOM_TYPE_COUNTRY) ||
8729 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8730 request->alpha2))
8731 goto nla_put_failure;
8732 }
8733
f4173766 8734 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 8735 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8736 goto nla_put_failure;
73d54c9e 8737
3b7b72ee 8738 genlmsg_end(msg, hdr);
73d54c9e 8739
bc43b28c 8740 rcu_read_lock();
463d0183 8741 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 8742 GFP_ATOMIC);
8743 rcu_read_unlock();
73d54c9e
LR		 8744
8745 return;
8746
8747nla_put_failure:
8748 genlmsg_cancel(msg, hdr);
8749 nlmsg_free(msg);
8750}
8751
6039f6d2
JM		 8752static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8753 struct net_device *netdev,
8754 const u8 *buf, size_t len,
e6d6e342 8755 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 8756{
8757 struct sk_buff *msg;
8758 void *hdr;
8759
e6d6e342 8760 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 8761 if (!msg)
8762 return;
8763
8764 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8765 if (!hdr) {
8766 nlmsg_free(msg);
8767 return;
8768 }
8769
9360ffd1
DM		 8770 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8771 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8772 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8773 goto nla_put_failure;
6039f6d2 8774
3b7b72ee 8775 genlmsg_end(msg, hdr);
6039f6d2 8776
463d0183
JB		 8777 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8778 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 8779 return;
8780
8781 nla_put_failure:
8782 genlmsg_cancel(msg, hdr);
8783 nlmsg_free(msg);
8784}
8785
8786void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8787 struct net_device *netdev, const u8 *buf,
8788 size_t len, gfp_t gfp)
6039f6d2
JM		 8789{
8790 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8791 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 8792}
8793
8794void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8795 struct net_device *netdev, const u8 *buf,
e6d6e342 8796 size_t len, gfp_t gfp)
6039f6d2 8797{
e6d6e342
JB		 8798 nl80211_send_mlme_event(rdev, netdev, buf, len,
8799 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 8800}
8801
53b46b84 8802void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8803 struct net_device *netdev, const u8 *buf,
8804 size_t len, gfp_t gfp)
6039f6d2
JM		 8805{
8806 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8807 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 8808}
8809
53b46b84
JM		 8810void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8811 struct net_device *netdev, const u8 *buf,
e6d6e342 8812 size_t len, gfp_t gfp)
6039f6d2
JM		 8813{
8814 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8815 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 8816}
8817
cf4e594e
JM		 8818void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8819 struct net_device *netdev, const u8 *buf,
8820 size_t len, gfp_t gfp)
8821{
8822 nl80211_send_mlme_event(rdev, netdev, buf, len,
8823 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8824}
8825
8826void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8827 struct net_device *netdev, const u8 *buf,
8828 size_t len, gfp_t gfp)
8829{
8830 nl80211_send_mlme_event(rdev, netdev, buf, len,
8831 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8832}
8833
1b06bb40
LR		 8834static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8835 struct net_device *netdev, int cmd,
e6d6e342 8836 const u8 *addr, gfp_t gfp)
1965c853
JM		 8837{
8838 struct sk_buff *msg;
8839 void *hdr;
8840
e6d6e342 8841 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 8842 if (!msg)
8843 return;
8844
8845 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8846 if (!hdr) {
8847 nlmsg_free(msg);
8848 return;
8849 }
8850
9360ffd1
DM		 8851 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8852 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8853 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8854 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8855 goto nla_put_failure;
1965c853 8856
3b7b72ee 8857 genlmsg_end(msg, hdr);
1965c853 8858
463d0183
JB		 8859 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8860 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8861 return;
8862
8863 nla_put_failure:
8864 genlmsg_cancel(msg, hdr);
8865 nlmsg_free(msg);
8866}
8867
8868void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8869 struct net_device *netdev, const u8 *addr,
8870 gfp_t gfp)
1965c853
JM		 8871{
8872 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8873 addr, gfp);
1965c853
JM		 8874}
8875
8876void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8877 struct net_device *netdev, const u8 *addr,
8878 gfp_t gfp)
1965c853 8879{
e6d6e342
JB		 8880 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8881 addr, gfp);
1965c853
JM		 8882}
8883
b23aa676
SO		 8884void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8885 struct net_device *netdev, const u8 *bssid,
8886 const u8 *req_ie, size_t req_ie_len,
8887 const u8 *resp_ie, size_t resp_ie_len,
8888 u16 status, gfp_t gfp)
8889{
8890 struct sk_buff *msg;
8891 void *hdr;
8892
58050fce 8893 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8894 if (!msg)
8895 return;
8896
8897 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8898 if (!hdr) {
8899 nlmsg_free(msg);
8900 return;
8901 }
8902
9360ffd1
DM		 8903 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8904 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8905 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8906 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8907 (req_ie &&
8908 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8909 (resp_ie &&
8910 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8911 goto nla_put_failure;
b23aa676 8912
3b7b72ee 8913 genlmsg_end(msg, hdr);
b23aa676 8914
463d0183
JB		 8915 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8916 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8917 return;
8918
8919 nla_put_failure:
8920 genlmsg_cancel(msg, hdr);
8921 nlmsg_free(msg);
8922
8923}
8924
8925void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8926 struct net_device *netdev, const u8 *bssid,
8927 const u8 *req_ie, size_t req_ie_len,
8928 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8929{
8930 struct sk_buff *msg;
8931 void *hdr;
8932
58050fce 8933 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8934 if (!msg)
8935 return;
8936
8937 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8938 if (!hdr) {
8939 nlmsg_free(msg);
8940 return;
8941 }
8942
9360ffd1
DM		 8943 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8944 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8945 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8946 (req_ie &&
8947 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8948 (resp_ie &&
8949 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8950 goto nla_put_failure;
b23aa676 8951
3b7b72ee 8952 genlmsg_end(msg, hdr);
b23aa676 8953
463d0183
JB		 8954 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8955 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8956 return;
8957
8958 nla_put_failure:
8959 genlmsg_cancel(msg, hdr);
8960 nlmsg_free(msg);
8961
8962}
8963
8964void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8965 struct net_device *netdev, u16 reason,
667503dd 8966 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8967{
8968 struct sk_buff *msg;
8969 void *hdr;
8970
58050fce 8971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8972 if (!msg)
8973 return;
8974
8975 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8976 if (!hdr) {
8977 nlmsg_free(msg);
8978 return;
8979 }
8980
9360ffd1
DM		 8981 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8982 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8983 (from_ap && reason &&
8984 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8985 (from_ap &&
8986 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8987 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8988 goto nla_put_failure;
b23aa676 8989
3b7b72ee 8990 genlmsg_end(msg, hdr);
b23aa676 8991
463d0183
JB		 8992 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8993 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8994 return;
8995
8996 nla_put_failure:
8997 genlmsg_cancel(msg, hdr);
8998 nlmsg_free(msg);
8999
9000}
9001
04a773ad
JB		 9002void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9003 struct net_device *netdev, const u8 *bssid,
9004 gfp_t gfp)
9005{
9006 struct sk_buff *msg;
9007 void *hdr;
9008
fd2120ca 9009 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 9010 if (!msg)
9011 return;
9012
9013 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9014 if (!hdr) {
9015 nlmsg_free(msg);
9016 return;
9017 }
9018
9360ffd1
DM		 9019 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9020 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9021 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9022 goto nla_put_failure;
04a773ad 9023
3b7b72ee 9024 genlmsg_end(msg, hdr);
04a773ad 9025
463d0183
JB		 9026 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9027 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9028 return;
9029
9030 nla_put_failure:
9031 genlmsg_cancel(msg, hdr);
9032 nlmsg_free(msg);
9033}
9034
c93b5e71
JC		 9035void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
9036 struct net_device *netdev,
9037 const u8 *macaddr, const u8* ie, u8 ie_len,
9038 gfp_t gfp)
9039{
9040 struct sk_buff *msg;
9041 void *hdr;
9042
9043 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9044 if (!msg)
9045 return;
9046
9047 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9048 if (!hdr) {
9049 nlmsg_free(msg);
9050 return;
9051 }
9052
9360ffd1
DM		 9053 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9054 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9055 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
9056 (ie_len && ie &&
9057 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9058 goto nla_put_failure;
c93b5e71 9059
3b7b72ee 9060 genlmsg_end(msg, hdr);
c93b5e71
JC		 9061
9062 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9063 nl80211_mlme_mcgrp.id, gfp);
9064 return;
9065
9066 nla_put_failure:
9067 genlmsg_cancel(msg, hdr);
9068 nlmsg_free(msg);
9069}
9070
a3b8b056
JM		 9071void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9072 struct net_device *netdev, const u8 *addr,
9073 enum nl80211_key_type key_type, int key_id,
e6d6e342 9074 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9075{
9076 struct sk_buff *msg;
9077 void *hdr;
9078
e6d6e342 9079 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9080 if (!msg)
9081 return;
9082
9083 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9084 if (!hdr) {
9085 nlmsg_free(msg);
9086 return;
9087 }
9088
9360ffd1
DM		 9089 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9090 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9091 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9092 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9093 (key_id != -1 &&
9094 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9095 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9096 goto nla_put_failure;
a3b8b056 9097
3b7b72ee 9098 genlmsg_end(msg, hdr);
a3b8b056 9099
463d0183
JB		 9100 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9101 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9102 return;
9103
9104 nla_put_failure:
9105 genlmsg_cancel(msg, hdr);
9106 nlmsg_free(msg);
9107}
9108
6bad8766
LR		 9109void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9110 struct ieee80211_channel *channel_before,
9111 struct ieee80211_channel *channel_after)
9112{
9113 struct sk_buff *msg;
9114 void *hdr;
9115 struct nlattr *nl_freq;
9116
fd2120ca 9117 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9118 if (!msg)
9119 return;
9120
9121 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9122 if (!hdr) {
9123 nlmsg_free(msg);
9124 return;
9125 }
9126
9127 /*
9128 * Since we are applying the beacon hint to a wiphy we know its
9129 * wiphy_idx is valid
9130 */
9360ffd1
DM		 9131 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9132 goto nla_put_failure;
6bad8766
LR		 9133
9134 /* Before */
9135 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9136 if (!nl_freq)
9137 goto nla_put_failure;
9138 if (nl80211_msg_put_channel(msg, channel_before))
9139 goto nla_put_failure;
9140 nla_nest_end(msg, nl_freq);
9141
9142 /* After */
9143 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9144 if (!nl_freq)
9145 goto nla_put_failure;
9146 if (nl80211_msg_put_channel(msg, channel_after))
9147 goto nla_put_failure;
9148 nla_nest_end(msg, nl_freq);
9149
3b7b72ee 9150 genlmsg_end(msg, hdr);
6bad8766 9151
463d0183
JB		 9152 rcu_read_lock();
9153 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9154 GFP_ATOMIC);
9155 rcu_read_unlock();
6bad8766
LR		 9156
9157 return;
9158
9159nla_put_failure:
9160 genlmsg_cancel(msg, hdr);
9161 nlmsg_free(msg);
9162}
9163
9588bbd5
JM		 9164static void nl80211_send_remain_on_chan_event(
9165 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9166 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9167 struct ieee80211_channel *chan,
9588bbd5
JM		 9168 unsigned int duration, gfp_t gfp)
9169{
9170 struct sk_buff *msg;
9171 void *hdr;
9172
9173 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9174 if (!msg)
9175 return;
9176
9177 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9178 if (!hdr) {
9179 nlmsg_free(msg);
9180 return;
9181 }
9182
9360ffd1 9183 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9184 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9185 wdev->netdev->ifindex)) ||
00f53350 9186 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9187 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9188 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9189 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9190 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9191 goto nla_put_failure;
9588bbd5 9192
9360ffd1
DM		 9193 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9194 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9195 goto nla_put_failure;
9588bbd5 9196
3b7b72ee 9197 genlmsg_end(msg, hdr);
9588bbd5
JM		 9198
9199 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9200 nl80211_mlme_mcgrp.id, gfp);
9201 return;
9202
9203 nla_put_failure:
9204 genlmsg_cancel(msg, hdr);
9205 nlmsg_free(msg);
9206}
9207
9208void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 9209 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9210 struct ieee80211_channel *chan,
9588bbd5
JM		 9211 unsigned int duration, gfp_t gfp)
9212{
9213 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9214 rdev, wdev, cookie, chan,
42d97a59 9215 duration, gfp);
9588bbd5
JM		 9216}
9217
9218void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 9219 struct cfg80211_registered_device *rdev,
9220 struct wireless_dev *wdev,
42d97a59 9221 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9588bbd5
JM		 9222{
9223 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9224 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5
JM		 9225}
9226
98b62183
JB		 9227void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
9228 struct net_device *dev, const u8 *mac_addr,
9229 struct station_info *sinfo, gfp_t gfp)
9230{
9231 struct sk_buff *msg;
9232
58050fce 9233 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9234 if (!msg)
9235 return;
9236
66266b3a
JL		 9237 if (nl80211_send_station(msg, 0, 0, 0,
9238 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9239 nlmsg_free(msg);
9240 return;
9241 }
9242
9243 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9244 nl80211_mlme_mcgrp.id, gfp);
9245}
9246
ec15e68b
JM		 9247void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
9248 struct net_device *dev, const u8 *mac_addr,
9249 gfp_t gfp)
9250{
9251 struct sk_buff *msg;
9252 void *hdr;
9253
58050fce 9254 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9255 if (!msg)
9256 return;
9257
9258 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9259 if (!hdr) {
9260 nlmsg_free(msg);
9261 return;
9262 }
9263
9360ffd1
DM		 9264 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9265 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9266 goto nla_put_failure;
ec15e68b 9267
3b7b72ee 9268 genlmsg_end(msg, hdr);
ec15e68b
JM		 9269
9270 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9271 nl80211_mlme_mcgrp.id, gfp);
9272 return;
9273
9274 nla_put_failure:
9275 genlmsg_cancel(msg, hdr);
9276 nlmsg_free(msg);
9277}
9278
ed44a951
PP		 9279void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
9280 struct net_device *dev, const u8 *mac_addr,
9281 enum nl80211_connect_failed_reason reason,
9282 gfp_t gfp)
9283{
9284 struct sk_buff *msg;
9285 void *hdr;
9286
9287 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9288 if (!msg)
9289 return;
9290
9291 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9292 if (!hdr) {
9293 nlmsg_free(msg);
9294 return;
9295 }
9296
9297 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9298 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9299 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9300 goto nla_put_failure;
9301
9302 genlmsg_end(msg, hdr);
9303
9304 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9305 nl80211_mlme_mcgrp.id, gfp);
9306 return;
9307
9308 nla_put_failure:
9309 genlmsg_cancel(msg, hdr);
9310 nlmsg_free(msg);
9311}
9312
b92ab5d8
JB		 9313static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9314 const u8 *addr, gfp_t gfp)
28946da7
JB		 9315{
9316 struct wireless_dev *wdev = dev->ieee80211_ptr;
9317 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9318 struct sk_buff *msg;
9319 void *hdr;
9320 int err;
15e47304 9321 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9322
15e47304 9323 if (!nlportid)
28946da7
JB		 9324 return false;
9325
9326 msg = nlmsg_new(100, gfp);
9327 if (!msg)
9328 return true;
9329
b92ab5d8 9330 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9331 if (!hdr) {
9332 nlmsg_free(msg);
9333 return true;
9334 }
9335
9360ffd1
DM		 9336 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9337 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9338 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9339 goto nla_put_failure;
28946da7
JB		 9340
9341 err = genlmsg_end(msg, hdr);
9342 if (err < 0) {
9343 nlmsg_free(msg);
9344 return true;
9345 }
9346
15e47304 9347 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9348 return true;
9349
9350 nla_put_failure:
9351 genlmsg_cancel(msg, hdr);
9352 nlmsg_free(msg);
9353 return true;
9354}
9355
b92ab5d8
JB		 9356bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
9357{
9358 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9359 addr, gfp);
9360}
9361
9362bool nl80211_unexpected_4addr_frame(struct net_device *dev,
9363 const u8 *addr, gfp_t gfp)
9364{
9365 return __nl80211_unexpected_frame(dev,
9366 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9367 addr, gfp);
9368}
9369
2e161f78 9370int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9371 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9372 int freq, int sig_dbm,
9373 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9374{
71bbc994 9375 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9376 struct sk_buff *msg;
9377 void *hdr;
026331c4
JM		 9378
9379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9380 if (!msg)
9381 return -ENOMEM;
9382
2e161f78 9383 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9384 if (!hdr) {
9385 nlmsg_free(msg);
9386 return -ENOMEM;
9387 }
9388
9360ffd1 9389 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9390 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9391 netdev->ifindex)) ||
9360ffd1
DM		 9392 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9393 (sig_dbm &&
9394 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9395 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9396 goto nla_put_failure;
026331c4 9397
3b7b72ee 9398 genlmsg_end(msg, hdr);
026331c4 9399
15e47304 9400 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9401
9402 nla_put_failure:
9403 genlmsg_cancel(msg, hdr);
9404 nlmsg_free(msg);
9405 return -ENOBUFS;
9406}
9407
2e161f78 9408void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 9409 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 9410 const u8 *buf, size_t len, bool ack,
9411 gfp_t gfp)
026331c4 9412{
71bbc994 9413 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9414 struct sk_buff *msg;
9415 void *hdr;
9416
9417 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9418 if (!msg)
9419 return;
9420
2e161f78 9421 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 9422 if (!hdr) {
9423 nlmsg_free(msg);
9424 return;
9425 }
9426
9360ffd1 9427 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9428 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9429 netdev->ifindex)) ||
9360ffd1
DM		 9430 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9431 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9432 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9433 goto nla_put_failure;
026331c4 9434
3b7b72ee 9435 genlmsg_end(msg, hdr);
026331c4
JM		 9436
9437 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9438 return;
9439
9440 nla_put_failure:
9441 genlmsg_cancel(msg, hdr);
9442 nlmsg_free(msg);
9443}
9444
d6dc1a38
JO		 9445void
9446nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
9447 struct net_device *netdev,
9448 enum nl80211_cqm_rssi_threshold_event rssi_event,
9449 gfp_t gfp)
9450{
9451 struct sk_buff *msg;
9452 struct nlattr *pinfoattr;
9453 void *hdr;
9454
58050fce 9455 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 9456 if (!msg)
9457 return;
9458
9459 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9460 if (!hdr) {
9461 nlmsg_free(msg);
9462 return;
9463 }
9464
9360ffd1
DM		 9465 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9466 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9467 goto nla_put_failure;
d6dc1a38
JO		 9468
9469 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9470 if (!pinfoattr)
9471 goto nla_put_failure;
9472
9360ffd1
DM		 9473 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9474 rssi_event))
9475 goto nla_put_failure;
d6dc1a38
JO		 9476
9477 nla_nest_end(msg, pinfoattr);
9478
3b7b72ee 9479 genlmsg_end(msg, hdr);
d6dc1a38
JO		 9480
9481 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9482 nl80211_mlme_mcgrp.id, gfp);
9483 return;
9484
9485 nla_put_failure:
9486 genlmsg_cancel(msg, hdr);
9487 nlmsg_free(msg);
9488}
9489
e5497d76
JB		 9490void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9491 struct net_device *netdev, const u8 *bssid,
9492 const u8 *replay_ctr, gfp_t gfp)
9493{
9494 struct sk_buff *msg;
9495 struct nlattr *rekey_attr;
9496 void *hdr;
9497
58050fce 9498 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 9499 if (!msg)
9500 return;
9501
9502 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9503 if (!hdr) {
9504 nlmsg_free(msg);
9505 return;
9506 }
9507
9360ffd1
DM		 9508 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9509 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9510 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9511 goto nla_put_failure;
e5497d76
JB		 9512
9513 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9514 if (!rekey_attr)
9515 goto nla_put_failure;
9516
9360ffd1
DM		 9517 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
9518 NL80211_REPLAY_CTR_LEN, replay_ctr))
9519 goto nla_put_failure;
e5497d76
JB		 9520
9521 nla_nest_end(msg, rekey_attr);
9522
3b7b72ee 9523 genlmsg_end(msg, hdr);
e5497d76
JB		 9524
9525 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9526 nl80211_mlme_mcgrp.id, gfp);
9527 return;
9528
9529 nla_put_failure:
9530 genlmsg_cancel(msg, hdr);
9531 nlmsg_free(msg);
9532}
9533
c9df56b4
JM		 9534void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
9535 struct net_device *netdev, int index,
9536 const u8 *bssid, bool preauth, gfp_t gfp)
9537{
9538 struct sk_buff *msg;
9539 struct nlattr *attr;
9540 void *hdr;
9541
58050fce 9542 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 9543 if (!msg)
9544 return;
9545
9546 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
9547 if (!hdr) {
9548 nlmsg_free(msg);
9549 return;
9550 }
9551
9360ffd1
DM		 9552 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9553 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9554 goto nla_put_failure;
c9df56b4
JM		 9555
9556 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
9557 if (!attr)
9558 goto nla_put_failure;
9559
9360ffd1
DM		 9560 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
9561 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
9562 (preauth &&
9563 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
9564 goto nla_put_failure;
c9df56b4
JM		 9565
9566 nla_nest_end(msg, attr);
9567
3b7b72ee 9568 genlmsg_end(msg, hdr);
c9df56b4
JM		 9569
9570 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9571 nl80211_mlme_mcgrp.id, gfp);
9572 return;
9573
9574 nla_put_failure:
9575 genlmsg_cancel(msg, hdr);
9576 nlmsg_free(msg);
9577}
9578
5314526b 9579void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
683b6d3b
JB		 9580 struct net_device *netdev,
9581 struct cfg80211_chan_def *chandef, gfp_t gfp)
5314526b
TP		 9582{
9583 struct sk_buff *msg;
9584 void *hdr;
9585
58050fce 9586 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 9587 if (!msg)
9588 return;
9589
9590 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
9591 if (!hdr) {
9592 nlmsg_free(msg);
9593 return;
9594 }
9595
683b6d3b
JB		 9596 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9597 goto nla_put_failure;
9598
9599 if (nl80211_send_chandef(msg, chandef))
7eab0f64 9600 goto nla_put_failure;
5314526b
TP		 9601
9602 genlmsg_end(msg, hdr);
9603
9604 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9605 nl80211_mlme_mcgrp.id, gfp);
9606 return;
9607
9608 nla_put_failure:
9609 genlmsg_cancel(msg, hdr);
9610 nlmsg_free(msg);
9611}
9612
84f10708
TP		 9613void
9614nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9615 struct net_device *netdev, const u8 *peer,
9616 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9617{
9618 struct sk_buff *msg;
9619 struct nlattr *pinfoattr;
9620 void *hdr;
9621
9622 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9623 if (!msg)
9624 return;
9625
9626 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9627 if (!hdr) {
9628 nlmsg_free(msg);
9629 return;
9630 }
9631
9632 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9633 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9634 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9635 goto nla_put_failure;
9636
9637 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9638 if (!pinfoattr)
9639 goto nla_put_failure;
9640
9641 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9642 goto nla_put_failure;
9643
9644 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9645 goto nla_put_failure;
9646
9647 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9648 goto nla_put_failure;
9649
9650 nla_nest_end(msg, pinfoattr);
9651
9652 genlmsg_end(msg, hdr);
9653
9654 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9655 nl80211_mlme_mcgrp.id, gfp);
9656 return;
9657
9658 nla_put_failure:
9659 genlmsg_cancel(msg, hdr);
9660 nlmsg_free(msg);
9661}
9662
04f39047
SW		 9663void
9664nl80211_radar_notify(struct cfg80211_registered_device *rdev,
9665 struct cfg80211_chan_def *chandef,
9666 enum nl80211_radar_event event,
9667 struct net_device *netdev, gfp_t gfp)
9668{
9669 struct sk_buff *msg;
9670 void *hdr;
9671
9672 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9673 if (!msg)
9674 return;
9675
9676 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
9677 if (!hdr) {
9678 nlmsg_free(msg);
9679 return;
9680 }
9681
9682 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
9683 goto nla_put_failure;
9684
9685 /* NOP and radar events don't need a netdev parameter */
9686 if (netdev) {
9687 struct wireless_dev *wdev = netdev->ieee80211_ptr;
9688
9689 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9690 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9691 goto nla_put_failure;
9692 }
9693
9694 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
9695 goto nla_put_failure;
9696
9697 if (nl80211_send_chandef(msg, chandef))
9698 goto nla_put_failure;
9699
9700 if (genlmsg_end(msg, hdr) < 0) {
9701 nlmsg_free(msg);
9702 return;
9703 }
9704
9705 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9706 nl80211_mlme_mcgrp.id, gfp);
9707 return;
9708
9709 nla_put_failure:
9710 genlmsg_cancel(msg, hdr);
9711 nlmsg_free(msg);
9712}
9713
c063dbf5
JB		 9714void
9715nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9716 struct net_device *netdev, const u8 *peer,
9717 u32 num_packets, gfp_t gfp)
9718{
9719 struct sk_buff *msg;
9720 struct nlattr *pinfoattr;
9721 void *hdr;
9722
58050fce 9723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 9724 if (!msg)
9725 return;
9726
9727 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9728 if (!hdr) {
9729 nlmsg_free(msg);
9730 return;
9731 }
9732
9360ffd1
DM		 9733 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9734 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9735 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9736 goto nla_put_failure;
c063dbf5
JB		 9737
9738 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9739 if (!pinfoattr)
9740 goto nla_put_failure;
9741
9360ffd1
DM		 9742 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9743 goto nla_put_failure;
c063dbf5
JB		 9744
9745 nla_nest_end(msg, pinfoattr);
9746
3b7b72ee 9747 genlmsg_end(msg, hdr);
c063dbf5
JB		 9748
9749 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9750 nl80211_mlme_mcgrp.id, gfp);
9751 return;
9752
9753 nla_put_failure:
9754 genlmsg_cancel(msg, hdr);
9755 nlmsg_free(msg);
9756}
9757
7f6cf311
JB		 9758void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9759 u64 cookie, bool acked, gfp_t gfp)
9760{
9761 struct wireless_dev *wdev = dev->ieee80211_ptr;
9762 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9763 struct sk_buff *msg;
9764 void *hdr;
9765 int err;
9766
4ee3e063
BL		 9767 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9768
58050fce 9769 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 9770
7f6cf311
JB		 9771 if (!msg)
9772 return;
9773
9774 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9775 if (!hdr) {
9776 nlmsg_free(msg);
9777 return;
9778 }
9779
9360ffd1
DM		 9780 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9781 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9782 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9783 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9784 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9785 goto nla_put_failure;
7f6cf311
JB		 9786
9787 err = genlmsg_end(msg, hdr);
9788 if (err < 0) {
9789 nlmsg_free(msg);
9790 return;
9791 }
9792
9793 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9794 nl80211_mlme_mcgrp.id, gfp);
9795 return;
9796
9797 nla_put_failure:
9798 genlmsg_cancel(msg, hdr);
9799 nlmsg_free(msg);
9800}
9801EXPORT_SYMBOL(cfg80211_probe_status);
9802
5e760230
JB		 9803void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9804 const u8 *frame, size_t len,
37c73b5f 9805 int freq, int sig_dbm)
5e760230
JB		 9806{
9807 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9808 struct sk_buff *msg;
9809 void *hdr;
37c73b5f 9810 struct cfg80211_beacon_registration *reg;
5e760230 9811
4ee3e063
BL		 9812 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9813
37c73b5f
BG		 9814 spin_lock_bh(&rdev->beacon_registrations_lock);
9815 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9816 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9817 if (!msg) {
9818 spin_unlock_bh(&rdev->beacon_registrations_lock);
9819 return;
9820 }
5e760230 9821
37c73b5f
BG		 9822 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9823 if (!hdr)
9824 goto nla_put_failure;
5e760230 9825
37c73b5f
BG		 9826 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9827 (freq &&
9828 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9829 (sig_dbm &&
9830 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9831 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9832 goto nla_put_failure;
5e760230 9833
37c73b5f 9834 genlmsg_end(msg, hdr);
5e760230 9835
37c73b5f
BG		 9836 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9837 }
9838 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9839 return;
9840
9841 nla_put_failure:
37c73b5f
BG		 9842 spin_unlock_bh(&rdev->beacon_registrations_lock);
9843 if (hdr)
9844 genlmsg_cancel(msg, hdr);
5e760230
JB		 9845 nlmsg_free(msg);
9846}
9847EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9848
cd8f7cb4
JB		 9849#ifdef CONFIG_PM
9850void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
9851 struct cfg80211_wowlan_wakeup *wakeup,
9852 gfp_t gfp)
9853{
9854 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9855 struct sk_buff *msg;
9856 void *hdr;
9857 int err, size = 200;
9858
9859 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
9860
9861 if (wakeup)
9862 size += wakeup->packet_present_len;
9863
9864 msg = nlmsg_new(size, gfp);
9865 if (!msg)
9866 return;
9867
9868 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
9869 if (!hdr)
9870 goto free_msg;
9871
9872 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9873 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9874 goto free_msg;
9875
9876 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9877 wdev->netdev->ifindex))
9878 goto free_msg;
9879
9880 if (wakeup) {
9881 struct nlattr *reasons;
9882
9883 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9884
9885 if (wakeup->disconnect &&
9886 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
9887 goto free_msg;
9888 if (wakeup->magic_pkt &&
9889 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
9890 goto free_msg;
9891 if (wakeup->gtk_rekey_failure &&
9892 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
9893 goto free_msg;
9894 if (wakeup->eap_identity_req &&
9895 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
9896 goto free_msg;
9897 if (wakeup->four_way_handshake &&
9898 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
9899 goto free_msg;
9900 if (wakeup->rfkill_release &&
9901 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
9902 goto free_msg;
9903
9904 if (wakeup->pattern_idx >= 0 &&
9905 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
9906 wakeup->pattern_idx))
9907 goto free_msg;
9908
2a0e047e
JB		 9909 if (wakeup->tcp_match)
9910 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
9911
9912 if (wakeup->tcp_connlost)
9913 nla_put_flag(msg,
9914 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
9915
9916 if (wakeup->tcp_nomoretokens)
9917 nla_put_flag(msg,
9918 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
9919
cd8f7cb4
JB		 9920 if (wakeup->packet) {
9921 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
9922 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
9923
9924 if (!wakeup->packet_80211) {
9925 pkt_attr =
9926 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
9927 len_attr =
9928 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
9929 }
9930
9931 if (wakeup->packet_len &&
9932 nla_put_u32(msg, len_attr, wakeup->packet_len))
9933 goto free_msg;
9934
9935 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
9936 wakeup->packet))
9937 goto free_msg;
9938 }
9939
9940 nla_nest_end(msg, reasons);
9941 }
9942
9943 err = genlmsg_end(msg, hdr);
9944 if (err < 0)
9945 goto free_msg;
9946
9947 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9948 nl80211_mlme_mcgrp.id, gfp);
9949 return;
9950
9951 free_msg:
9952 nlmsg_free(msg);
9953}
9954EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
9955#endif
9956
3475b094
JM		 9957void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9958 enum nl80211_tdls_operation oper,
9959 u16 reason_code, gfp_t gfp)
9960{
9961 struct wireless_dev *wdev = dev->ieee80211_ptr;
9962 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9963 struct sk_buff *msg;
9964 void *hdr;
9965 int err;
9966
9967 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9968 reason_code);
9969
9970 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9971 if (!msg)
9972 return;
9973
9974 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9975 if (!hdr) {
9976 nlmsg_free(msg);
9977 return;
9978 }
9979
9980 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9981 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9982 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9983 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9984 (reason_code > 0 &&
9985 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9986 goto nla_put_failure;
9987
9988 err = genlmsg_end(msg, hdr);
9989 if (err < 0) {
9990 nlmsg_free(msg);
9991 return;
9992 }
9993
9994 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9995 nl80211_mlme_mcgrp.id, gfp);
9996 return;
9997
9998 nla_put_failure:
9999 genlmsg_cancel(msg, hdr);
10000 nlmsg_free(msg);
10001}
10002EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10003
026331c4
JM		 10004static int nl80211_netlink_notify(struct notifier_block * nb,
10005 unsigned long state,
10006 void *_notify)
10007{
10008 struct netlink_notify *notify = _notify;
10009 struct cfg80211_registered_device *rdev;
10010 struct wireless_dev *wdev;
37c73b5f 10011 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 10012
10013 if (state != NETLINK_URELEASE)
10014 return NOTIFY_DONE;
10015
10016 rcu_read_lock();
10017
5e760230 10018 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10019 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10020 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10021
10022 spin_lock_bh(&rdev->beacon_registrations_lock);
10023 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10024 list) {
10025 if (reg->nlportid == notify->portid) {
10026 list_del(&reg->list);
10027 kfree(reg);
10028 break;
10029 }
10030 }
10031 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10032 }
026331c4
JM		 10033
10034 rcu_read_unlock();
10035
10036 return NOTIFY_DONE;
10037}
10038
10039static struct notifier_block nl80211_netlink_notifier = {
10040 .notifier_call = nl80211_netlink_notify,
10041};
10042
55682965
JB		 10043/* initialisation/exit functions */
10044
10045int nl80211_init(void)
10046{
0d63cbb5 10047 int err;
55682965 10048
0d63cbb5
MM		 10049 err = genl_register_family_with_ops(&nl80211_fam,
10050 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10051 if (err)
10052 return err;
10053
55682965
JB		 10054 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10055 if (err)
10056 goto err_out;
10057
2a519311
JB		 10058 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10059 if (err)
10060 goto err_out;
10061
73d54c9e
LR		 10062 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10063 if (err)
10064 goto err_out;
10065
6039f6d2
JM		 10066 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10067 if (err)
10068 goto err_out;
10069
aff89a9b
JB		 10070#ifdef CONFIG_NL80211_TESTMODE
10071 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10072 if (err)
10073 goto err_out;
10074#endif
10075
026331c4
JM		 10076 err = netlink_register_notifier(&nl80211_netlink_notifier);
10077 if (err)
10078 goto err_out;
10079
55682965
JB		 10080 return 0;
10081 err_out:
10082 genl_unregister_family(&nl80211_fam);
10083 return err;
10084}
10085
10086void nl80211_exit(void)
10087{
026331c4 10088 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10089 genl_unregister_family(&nl80211_fam);
10090}
Linux kernel - Deliverables
This page took 1.201667 seconds and 5 git commands to generate.