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cfg80211: unify station WME parsing
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
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
ff276691
JB		 3362static int nl80211_parse_sta_wme(struct genl_info *info,
3363 struct station_parameters *params)
df881293 3364{
df881293
JM		 3365 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3366 struct nlattr *nla;
3367 int err;
3368
df881293
JM		 3369 /* parse WME attributes if present */
3370 if (!info->attrs[NL80211_ATTR_STA_WME])
3371 return 0;
3372
3373 nla = info->attrs[NL80211_ATTR_STA_WME];
3374 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3375 nl80211_sta_wme_policy);
3376 if (err)
3377 return err;
3378
3379 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3380 params->uapsd_queues = nla_get_u8(
3381 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3382 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3383 return -EINVAL;
3384
3385 if (tb[NL80211_STA_WME_MAX_SP])
3386 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3387
3388 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3389 return -EINVAL;
3390
3391 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3392
3393 return 0;
3394}
3395
ff276691
JB		 3396static int nl80211_set_station_tdls(struct genl_info *info,
3397 struct station_parameters *params)
3398{
3399 /* Dummy STA entry gets updated once the peer capabilities are known */
3400 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3401 params->ht_capa =
3402 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3403 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3404 params->vht_capa =
3405 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3406
3407 return nl80211_parse_sta_wme(info, params);
3408}
3409
5727ef1b
JB		 3410static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3411{
4c476991 3412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3413 int err;
4c476991 3414 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3415 struct station_parameters params;
3416 u8 *mac_addr = NULL;
3417
3418 memset(&params, 0, sizeof(params));
3419
3420 params.listen_interval = -1;
3421
3422 if (info->attrs[NL80211_ATTR_STA_AID])
3423 return -EINVAL;
3424
3425 if (!info->attrs[NL80211_ATTR_MAC])
3426 return -EINVAL;
3427
3428 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3429
3430 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3431 params.supported_rates =
3432 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3433 params.supported_rates_len =
3434 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3435 }
3436
9d62a986
JM		 3437 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3438 params.capability =
3439 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3440 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3441 }
3442
3443 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3444 params.ext_capab =
3445 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3446 params.ext_capab_len =
3447 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3448 }
3449
df881293 3450 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
ba23d206 3451 return -EINVAL;
36aedc90 3452
bdd90d5e
JB		 3453 if (!rdev->ops->change_station)
3454 return -EOPNOTSUPP;
3455
bdd3ae3d 3456 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3457 return -EINVAL;
3458
f8bacc21 3459 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
2ec600d6 3460 params.plink_action =
f8bacc21
JB		 3461 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3462 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3463 return -EINVAL;
3464 }
2ec600d6 3465
f8bacc21 3466 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
9c3990aa 3467 params.plink_state =
f8bacc21
JB		 3468 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3469 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3470 return -EINVAL;
3471 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3472 }
9c3990aa 3473
3b1c5a53
MP		 3474 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3475 enum nl80211_mesh_power_mode pm = nla_get_u32(
3476 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3477
3478 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3479 pm > NL80211_MESH_POWER_MAX)
3480 return -EINVAL;
3481
3482 params.local_pm = pm;
3483 }
3484
a97f4424
JB		 3485 switch (dev->ieee80211_ptr->iftype) {
3486 case NL80211_IFTYPE_AP:
3487 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3488 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3489 /* disallow mesh-specific things */
3490 if (params.plink_action)
bdd90d5e 3491 return -EINVAL;
3b1c5a53
MP		 3492 if (params.local_pm)
3493 return -EINVAL;
f8bacc21
JB		 3494 if (params.sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3495 return -EINVAL;
bdd90d5e
JB		 3496
3497 /* TDLS can't be set, ... */
3498 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3499 return -EINVAL;
3500 /*
3501 * ... but don't bother the driver with it. This works around
3502 * a hostapd/wpa_supplicant issue -- it always includes the
3503 * TLDS_PEER flag in the mask even for AP mode.
3504 */
3505 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3506
3507 /* accept only the listed bits */
3508 if (params.sta_flags_mask &
3509 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
d582cffb
JB		 3510 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3511 BIT(NL80211_STA_FLAG_ASSOCIATED) |
bdd90d5e
JB		 3512 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3513 BIT(NL80211_STA_FLAG_WME) |
3514 BIT(NL80211_STA_FLAG_MFP)))
3515 return -EINVAL;
3516
d582cffb
JB		 3517 /* but authenticated/associated only if driver handles it */
3518 if (!(rdev->wiphy.features &
3519 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3520 params.sta_flags_mask &
3521 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3522 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3523 return -EINVAL;
3524
ba23d206
JB		 3525 /* reject other things that can't change */
3526 if (params.supported_rates)
3527 return -EINVAL;
9d62a986
JM		 3528 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3529 return -EINVAL;
3530 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3531 return -EINVAL;
df881293
JM		 3532 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3533 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3534 return -EINVAL;
ba23d206 3535
bdd90d5e
JB		 3536 /* must be last in here for error handling */
3537 params.vlan = get_vlan(info, rdev);
3538 if (IS_ERR(params.vlan))
3539 return PTR_ERR(params.vlan);
a97f4424 3540 break;
074ac8df 3541 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3542 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3543 /*
3544 * Don't allow userspace to change the TDLS_PEER flag,
3545 * but silently ignore attempts to change it since we
3546 * don't have state here to verify that it doesn't try
3547 * to change the flag.
3548 */
3549 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
df881293
JM		 3550 /* Include parameters for TDLS peer (driver will check) */
3551 err = nl80211_set_station_tdls(info, &params);
3552 if (err)
3553 return err;
3554 /* disallow things sta doesn't support */
3555 if (params.plink_action)
3556 return -EINVAL;
3557 if (params.local_pm)
3558 return -EINVAL;
f8bacc21
JB		 3559 if (params.sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3560 return -EINVAL;
df881293
JM		 3561 /* reject any changes other than AUTHORIZED or WME (for TDLS) */
3562 if (params.sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3563 BIT(NL80211_STA_FLAG_WME)))
3564 return -EINVAL;
3565 break;
267335d6
AQ		 3566 case NL80211_IFTYPE_ADHOC:
3567 /* disallow things sta doesn't support */
3568 if (params.plink_action)
3569 return -EINVAL;
3b1c5a53
MP		 3570 if (params.local_pm)
3571 return -EINVAL;
f8bacc21
JB		 3572 if (params.sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3573 return -EINVAL;
df881293
JM		 3574 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3575 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3576 return -EINVAL;
bdd90d5e
JB		 3577 /* reject any changes other than AUTHORIZED */
3578 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3579 return -EINVAL;
a97f4424
JB		 3580 break;
3581 case NL80211_IFTYPE_MESH_POINT:
3582 /* disallow things mesh doesn't support */
3583 if (params.vlan)
bdd90d5e 3584 return -EINVAL;
ba23d206 3585 if (params.supported_rates)
bdd90d5e 3586 return -EINVAL;
9d62a986
JM		 3587 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3588 return -EINVAL;
3589 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3590 return -EINVAL;
df881293
JM		 3591 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3592 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3593 return -EINVAL;
bdd90d5e
JB		 3594 /*
3595 * No special handling for TDLS here -- the userspace
3596 * mesh code doesn't have this bug.
3597 */
b39c48fa
JC		 3598 if (params.sta_flags_mask &
3599 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3600 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3601 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3602 return -EINVAL;
a97f4424
JB		 3603 break;
3604 default:
bdd90d5e 3605 return -EOPNOTSUPP;
034d655e
JB		 3606 }
3607
bdd90d5e 3608 /* be aware of params.vlan when changing code here */
5727ef1b 3609
e35e4d28 3610 err = rdev_change_station(rdev, dev, mac_addr, &params);
5727ef1b 3611
5727ef1b
JB		 3612 if (params.vlan)
3613 dev_put(params.vlan);
3b85875a 3614
5727ef1b
JB		 3615 return err;
3616}
3617
3618static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3619{
4c476991 3620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3621 int err;
4c476991 3622 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3623 struct station_parameters params;
3624 u8 *mac_addr = NULL;
3625
3626 memset(&params, 0, sizeof(params));
3627
984c311b
JB		 3628 if (!rdev->ops->add_station)
3629 return -EOPNOTSUPP;
3630
5727ef1b
JB		 3631 if (!info->attrs[NL80211_ATTR_MAC])
3632 return -EINVAL;
3633
5727ef1b
JB		 3634 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3635 return -EINVAL;
3636
3637 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3638 return -EINVAL;
3639
0e956c13
TLSC		 3640 if (!info->attrs[NL80211_ATTR_STA_AID])
3641 return -EINVAL;
3642
5727ef1b
JB		 3643 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3644 params.supported_rates =
3645 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3646 params.supported_rates_len =
3647 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3648 params.listen_interval =
3649 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3650
0e956c13
TLSC		 3651 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3652 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3653 return -EINVAL;
51b50fbe 3654
9d62a986
JM		 3655 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3656 params.capability =
3657 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3658 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3659 }
3660
3661 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3662 params.ext_capab =
3663 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3664 params.ext_capab_len =
3665 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3666 }
3667
36aedc90
JM		 3668 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3669 params.ht_capa =
3670 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3671
f461be3e
MP		 3672 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3673 params.vht_capa =
3674 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3675
f8bacc21 3676 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
96b78dff 3677 params.plink_action =
f8bacc21
JB		 3678 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3679 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3680 return -EINVAL;
3681 }
96b78dff 3682
ff276691
JB		 3683 err = nl80211_parse_sta_wme(info, &params);
3684 if (err)
3685 return err;
bdd90d5e 3686
bdd3ae3d 3687 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3688 return -EINVAL;
3689
bdd90d5e
JB		 3690 switch (dev->ieee80211_ptr->iftype) {
3691 case NL80211_IFTYPE_AP:
3692 case NL80211_IFTYPE_AP_VLAN:
3693 case NL80211_IFTYPE_P2P_GO:
984c311b
JB		 3694 /* ignore WME attributes if iface/sta is not capable */
3695 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
3696 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
3697 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
c75786c9 3698
bdd90d5e
JB		 3699 /* TDLS peers cannot be added */
3700 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3701 return -EINVAL;
bdd90d5e
JB		 3702 /* but don't bother the driver with it */
3703 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3704
d582cffb
JB		 3705 /* allow authenticated/associated only if driver handles it */
3706 if (!(rdev->wiphy.features &
3707 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3708 params.sta_flags_mask &
3709 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3710 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3711 return -EINVAL;
3712
bdd90d5e
JB		 3713 /* must be last in here for error handling */
3714 params.vlan = get_vlan(info, rdev);
3715 if (IS_ERR(params.vlan))
3716 return PTR_ERR(params.vlan);
3717 break;
3718 case NL80211_IFTYPE_MESH_POINT:
984c311b
JB		 3719 /* ignore uAPSD data */
3720 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
3721
d582cffb
JB		 3722 /* associated is disallowed */
3723 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3724 return -EINVAL;
bdd90d5e
JB		 3725 /* TDLS peers cannot be added */
3726 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3727 return -EINVAL;
3728 break;
3729 case NL80211_IFTYPE_STATION:
984c311b
JB		 3730 /* ignore uAPSD data */
3731 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
3732
d582cffb
JB		 3733 /* associated is disallowed */
3734 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3735 return -EINVAL;
bdd90d5e
JB		 3736 /* Only TDLS peers can be added */
3737 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3738 return -EINVAL;
3739 /* Can only add if TDLS ... */
3740 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3741 return -EOPNOTSUPP;
3742 /* ... with external setup is supported */
3743 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3744 return -EOPNOTSUPP;
3745 break;
3746 default:
3747 return -EOPNOTSUPP;
c75786c9
EP		 3748 }
3749
bdd90d5e 3750 /* be aware of params.vlan when changing code here */
5727ef1b 3751
e35e4d28 3752 err = rdev_add_station(rdev, dev, mac_addr, &params);
5727ef1b 3753
5727ef1b
JB		 3754 if (params.vlan)
3755 dev_put(params.vlan);
5727ef1b
JB		 3756 return err;
3757}
3758
3759static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3760{
4c476991
JB		 3761 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3762 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3763 u8 *mac_addr = NULL;
3764
3765 if (info->attrs[NL80211_ATTR_MAC])
3766 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3767
e80cf853 3768 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3769 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3770 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3771 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3772 return -EINVAL;
5727ef1b 3773
4c476991
JB		 3774 if (!rdev->ops->del_station)
3775 return -EOPNOTSUPP;
3b85875a 3776
e35e4d28 3777 return rdev_del_station(rdev, dev, mac_addr);
5727ef1b
JB		 3778}
3779
15e47304 3780static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
2ec600d6
LCC		 3781 int flags, struct net_device *dev,
3782 u8 *dst, u8 *next_hop,
3783 struct mpath_info *pinfo)
3784{
3785 void *hdr;
3786 struct nlattr *pinfoattr;
3787
15e47304 3788 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2ec600d6
LCC		 3789 if (!hdr)
3790 return -1;
3791
9360ffd1
DM		 3792 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3793 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3794 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3795 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3796 goto nla_put_failure;
f5ea9120 3797
2ec600d6
LCC		 3798 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3799 if (!pinfoattr)
3800 goto nla_put_failure;
9360ffd1
DM		 3801 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3802 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3803 pinfo->frame_qlen))
3804 goto nla_put_failure;
3805 if (((pinfo->filled & MPATH_INFO_SN) &&
3806 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3807 ((pinfo->filled & MPATH_INFO_METRIC) &&
3808 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3809 pinfo->metric)) ||
3810 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3811 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3812 pinfo->exptime)) ||
3813 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3814 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3815 pinfo->flags)) ||
3816 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3817 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3818 pinfo->discovery_timeout)) ||
3819 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3820 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3821 pinfo->discovery_retries)))
3822 goto nla_put_failure;
2ec600d6
LCC		 3823
3824 nla_nest_end(msg, pinfoattr);
3825
3826 return genlmsg_end(msg, hdr);
3827
3828 nla_put_failure:
bc3ed28c
TG		 3829 genlmsg_cancel(msg, hdr);
3830 return -EMSGSIZE;
2ec600d6
LCC		 3831}
3832
3833static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3834 struct netlink_callback *cb)
2ec600d6 3835{
2ec600d6
LCC		 3836 struct mpath_info pinfo;
3837 struct cfg80211_registered_device *dev;
bba95fef 3838 struct net_device *netdev;
2ec600d6
LCC		 3839 u8 dst[ETH_ALEN];
3840 u8 next_hop[ETH_ALEN];
bba95fef 3841 int path_idx = cb->args[1];
2ec600d6 3842 int err;
2ec600d6 3843
67748893
JB		 3844 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3845 if (err)
3846 return err;
bba95fef
JB		 3847
3848 if (!dev->ops->dump_mpath) {
eec60b03 3849 err = -EOPNOTSUPP;
bba95fef
JB		 3850 goto out_err;
3851 }
3852
eec60b03
JM		 3853 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3854 err = -EOPNOTSUPP;
0448b5fc 3855 goto out_err;
eec60b03
JM		 3856 }
3857
bba95fef 3858 while (1) {
e35e4d28
HG		 3859 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3860 &pinfo);
bba95fef 3861 if (err == -ENOENT)
2ec600d6 3862 break;
bba95fef 3863 if (err)
3b85875a 3864 goto out_err;
2ec600d6 3865
15e47304 3866 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
bba95fef
JB		 3867 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3868 netdev, dst, next_hop,
3869 &pinfo) < 0)
3870 goto out;
2ec600d6 3871
bba95fef 3872 path_idx++;
2ec600d6 3873 }
2ec600d6 3874
2ec600d6 3875
bba95fef
JB		 3876 out:
3877 cb->args[1] = path_idx;
3878 err = skb->len;
bba95fef 3879 out_err:
67748893 3880 nl80211_finish_netdev_dump(dev);
bba95fef 3881 return err;
2ec600d6
LCC		 3882}
3883
3884static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3885{
4c476991 3886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3887 int err;
4c476991 3888 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3889 struct mpath_info pinfo;
3890 struct sk_buff *msg;
3891 u8 *dst = NULL;
3892 u8 next_hop[ETH_ALEN];
3893
3894 memset(&pinfo, 0, sizeof(pinfo));
3895
3896 if (!info->attrs[NL80211_ATTR_MAC])
3897 return -EINVAL;
3898
3899 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3900
4c476991
JB		 3901 if (!rdev->ops->get_mpath)
3902 return -EOPNOTSUPP;
2ec600d6 3903
4c476991
JB		 3904 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3905 return -EOPNOTSUPP;
eec60b03 3906
e35e4d28 3907 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
2ec600d6 3908 if (err)
4c476991 3909 return err;
2ec600d6 3910
fd2120ca 3911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3912 if (!msg)
4c476991 3913 return -ENOMEM;
2ec600d6 3914
15e47304 3915 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4c476991
JB		 3916 dev, dst, next_hop, &pinfo) < 0) {
3917 nlmsg_free(msg);
3918 return -ENOBUFS;
3919 }
3b85875a 3920
4c476991 3921 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3922}
3923
3924static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3925{
4c476991
JB		 3926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3927 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3928 u8 *dst = NULL;
3929 u8 *next_hop = NULL;
3930
3931 if (!info->attrs[NL80211_ATTR_MAC])
3932 return -EINVAL;
3933
3934 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3935 return -EINVAL;
3936
3937 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3938 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3939
4c476991
JB		 3940 if (!rdev->ops->change_mpath)
3941 return -EOPNOTSUPP;
35a8efe1 3942
4c476991
JB		 3943 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3944 return -EOPNOTSUPP;
2ec600d6 3945
e35e4d28 3946 return rdev_change_mpath(rdev, dev, dst, next_hop);
2ec600d6 3947}
4c476991 3948
2ec600d6
LCC		 3949static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3950{
4c476991
JB		 3951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3952 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3953 u8 *dst = NULL;
3954 u8 *next_hop = NULL;
3955
3956 if (!info->attrs[NL80211_ATTR_MAC])
3957 return -EINVAL;
3958
3959 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3960 return -EINVAL;
3961
3962 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3963 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3964
4c476991
JB		 3965 if (!rdev->ops->add_mpath)
3966 return -EOPNOTSUPP;
35a8efe1 3967
4c476991
JB		 3968 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3969 return -EOPNOTSUPP;
2ec600d6 3970
e35e4d28 3971 return rdev_add_mpath(rdev, dev, dst, next_hop);
2ec600d6
LCC		 3972}
3973
3974static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3975{
4c476991
JB		 3976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3977 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3978 u8 *dst = NULL;
3979
3980 if (info->attrs[NL80211_ATTR_MAC])
3981 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3982
4c476991
JB		 3983 if (!rdev->ops->del_mpath)
3984 return -EOPNOTSUPP;
3b85875a 3985
e35e4d28 3986 return rdev_del_mpath(rdev, dev, dst);
2ec600d6
LCC		 3987}
3988
9f1ba906
JM		 3989static int nl80211_set_bss(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];
9f1ba906
JM		 3993 struct bss_parameters params;
3994
3995 memset(&params, 0, sizeof(params));
3996 /* default to not changing parameters */
3997 params.use_cts_prot = -1;
3998 params.use_short_preamble = -1;
3999 params.use_short_slot_time = -1;
fd8aaaf3 4000 params.ap_isolate = -1;
50b12f59 4001 params.ht_opmode = -1;
53cabad7
JB		 4002 params.p2p_ctwindow = -1;
4003 params.p2p_opp_ps = -1;
9f1ba906
JM		 4004
4005 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4006 params.use_cts_prot =
4007 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4008 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4009 params.use_short_preamble =
4010 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4011 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4012 params.use_short_slot_time =
4013 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 4014 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4015 params.basic_rates =
4016 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4017 params.basic_rates_len =
4018 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4019 }
fd8aaaf3
FF		 4020 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4021 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 4022 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4023 params.ht_opmode =
4024 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 4025
53cabad7
JB		 4026 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4027 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4028 return -EINVAL;
4029 params.p2p_ctwindow =
4030 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4031 if (params.p2p_ctwindow < 0)
4032 return -EINVAL;
4033 if (params.p2p_ctwindow != 0 &&
4034 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4035 return -EINVAL;
4036 }
4037
4038 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4039 u8 tmp;
4040
4041 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4042 return -EINVAL;
4043 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4044 if (tmp > 1)
4045 return -EINVAL;
4046 params.p2p_opp_ps = tmp;
4047 if (params.p2p_opp_ps &&
4048 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4049 return -EINVAL;
4050 }
4051
4c476991
JB		 4052 if (!rdev->ops->change_bss)
4053 return -EOPNOTSUPP;
9f1ba906 4054
074ac8df 4055 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 4056 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4057 return -EOPNOTSUPP;
3b85875a 4058
e35e4d28 4059 return rdev_change_bss(rdev, dev, &params);
9f1ba906
JM		 4060}
4061
b54452b0 4062static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 4063 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4064 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4065 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4066 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4067 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4068 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4069};
4070
4071static int parse_reg_rule(struct nlattr *tb[],
4072 struct ieee80211_reg_rule *reg_rule)
4073{
4074 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
4075 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
4076
4077 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4078 return -EINVAL;
4079 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4080 return -EINVAL;
4081 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4082 return -EINVAL;
4083 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4084 return -EINVAL;
4085 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4086 return -EINVAL;
4087
4088 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4089
4090 freq_range->start_freq_khz =
4091 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4092 freq_range->end_freq_khz =
4093 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4094 freq_range->max_bandwidth_khz =
4095 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4096
4097 power_rule->max_eirp =
4098 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4099
4100 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4101 power_rule->max_antenna_gain =
4102 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4103
4104 return 0;
4105}
4106
4107static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4108{
4109 int r;
4110 char *data = NULL;
57b5ce07 4111 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 4112
80778f18
LR		 4113 /*
4114 * You should only get this when cfg80211 hasn't yet initialized
4115 * completely when built-in to the kernel right between the time
4116 * window between nl80211_init() and regulatory_init(), if that is
4117 * even possible.
4118 */
458f4f9e 4119 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
fe33eb39 4120 return -EINPROGRESS;
80778f18 4121
fe33eb39
LR		 4122 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4123 return -EINVAL;
b2e1b302
LR		 4124
4125 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4126
57b5ce07
LR		 4127 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4128 user_reg_hint_type =
4129 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4130 else
4131 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4132
4133 switch (user_reg_hint_type) {
4134 case NL80211_USER_REG_HINT_USER:
4135 case NL80211_USER_REG_HINT_CELL_BASE:
4136 break;
4137 default:
4138 return -EINVAL;
4139 }
4140
4141 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 4142
b2e1b302
LR		 4143 return r;
4144}
4145
24bdd9f4 4146static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 4147 struct genl_info *info)
93da9cc1 4148{
4c476991 4149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 4150 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 4151 struct wireless_dev *wdev = dev->ieee80211_ptr;
4152 struct mesh_config cur_params;
4153 int err = 0;
93da9cc1 4154 void *hdr;
4155 struct nlattr *pinfoattr;
4156 struct sk_buff *msg;
4157
29cbe68c
JB		 4158 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4159 return -EOPNOTSUPP;
4160
24bdd9f4 4161 if (!rdev->ops->get_mesh_config)
4c476991 4162 return -EOPNOTSUPP;
f3f92586 4163
29cbe68c
JB		 4164 wdev_lock(wdev);
4165 /* If not connected, get default parameters */
4166 if (!wdev->mesh_id_len)
4167 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4168 else
e35e4d28 4169 err = rdev_get_mesh_config(rdev, dev, &cur_params);
29cbe68c
JB		 4170 wdev_unlock(wdev);
4171
93da9cc1 4172 if (err)
4c476991 4173 return err;
93da9cc1 4174
4175 /* Draw up a netlink message to send back */
fd2120ca 4176 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4177 if (!msg)
4178 return -ENOMEM;
15e47304 4179 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
24bdd9f4 4180 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 4181 if (!hdr)
efe1cf0c 4182 goto out;
24bdd9f4 4183 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 4184 if (!pinfoattr)
4185 goto nla_put_failure;
9360ffd1
DM		 4186 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4187 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4188 cur_params.dot11MeshRetryTimeout) ||
4189 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4190 cur_params.dot11MeshConfirmTimeout) ||
4191 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4192 cur_params.dot11MeshHoldingTimeout) ||
4193 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4194 cur_params.dot11MeshMaxPeerLinks) ||
4195 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4196 cur_params.dot11MeshMaxRetries) ||
4197 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4198 cur_params.dot11MeshTTL) ||
4199 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4200 cur_params.element_ttl) ||
4201 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4202 cur_params.auto_open_plinks) ||
7eab0f64
JL		 4203 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4204 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 4205 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4206 cur_params.dot11MeshHWMPmaxPREQretries) ||
4207 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4208 cur_params.path_refresh_time) ||
4209 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4210 cur_params.min_discovery_timeout) ||
4211 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4212 cur_params.dot11MeshHWMPactivePathTimeout) ||
4213 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4214 cur_params.dot11MeshHWMPpreqMinInterval) ||
4215 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4216 cur_params.dot11MeshHWMPperrMinInterval) ||
4217 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4218 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4219 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4220 cur_params.dot11MeshHWMPRootMode) ||
4221 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4222 cur_params.dot11MeshHWMPRannInterval) ||
4223 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4224 cur_params.dot11MeshGateAnnouncementProtocol) ||
4225 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4226 cur_params.dot11MeshForwarding) ||
4227 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 4228 cur_params.rssi_threshold) ||
4229 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4230 cur_params.ht_opmode) ||
4231 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4232 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4233 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4234 cur_params.dot11MeshHWMProotInterval) ||
4235 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3b1c5a53
MP		 4236 cur_params.dot11MeshHWMPconfirmationInterval) ||
4237 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4238 cur_params.power_mode) ||
4239 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4240 cur_params.dot11MeshAwakeWindowDuration))
9360ffd1 4241 goto nla_put_failure;
93da9cc1 4242 nla_nest_end(msg, pinfoattr);
4243 genlmsg_end(msg, hdr);
4c476991 4244 return genlmsg_reply(msg, info);
93da9cc1 4245
3b85875a 4246 nla_put_failure:
93da9cc1 4247 genlmsg_cancel(msg, hdr);
efe1cf0c 4248 out:
d080e275 4249 nlmsg_free(msg);
4c476991 4250 return -ENOBUFS;
93da9cc1 4251}
4252
b54452b0 4253static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 4254 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4255 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4256 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4257 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4258 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4259 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 4260 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 4261 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 4262 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 4263 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4264 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4265 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4266 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4267 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 4268 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 4269 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 4270 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 4271 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 4272 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 4273 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 4274 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4275 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 4276 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4277 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 4278 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3b1c5a53
MP		 4279 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4280 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
93da9cc1 4281};
4282
c80d545d
JC		 4283static const struct nla_policy
4284 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 4285 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 4286 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4287 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 4288 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 4289 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 4290 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 4291 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 4292};
4293
24bdd9f4 4294static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 4295 struct mesh_config *cfg,
4296 u32 *mask_out)
93da9cc1 4297{
93da9cc1 4298 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 4299 u32 mask = 0;
93da9cc1 4300
ea54fba2
MP		 4301#define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4302do { \
4303 if (tb[attr]) { \
4304 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4305 return -EINVAL; \
4306 cfg->param = fn(tb[attr]); \
4307 mask |= (1 << (attr - 1)); \
4308 } \
4309} while (0)
bd90fdcc
JB		 4310
4311
24bdd9f4 4312 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 4313 return -EINVAL;
4314 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 4315 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 4316 nl80211_meshconf_params_policy))
93da9cc1 4317 return -EINVAL;
4318
93da9cc1 4319 /* This makes sure that there aren't more than 32 mesh config
4320 * parameters (otherwise our bitfield scheme would not work.) */
4321 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4322
4323 /* Fill in the params struct */
ea54fba2 4324 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
a4f606ea
CYY		 4325 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4326 nla_get_u16);
ea54fba2 4327 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
a4f606ea
CYY		 4328 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4329 nla_get_u16);
ea54fba2 4330 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
a4f606ea
CYY		 4331 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4332 nla_get_u16);
ea54fba2 4333 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
a4f606ea
CYY		 4334 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4335 nla_get_u16);
ea54fba2 4336 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
a4f606ea
CYY		 4337 mask, NL80211_MESHCONF_MAX_RETRIES,
4338 nla_get_u8);
ea54fba2 4339 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
a4f606ea 4340 mask, NL80211_MESHCONF_TTL, nla_get_u8);
ea54fba2 4341 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
a4f606ea
CYY		 4342 mask, NL80211_MESHCONF_ELEMENT_TTL,
4343 nla_get_u8);
ea54fba2 4344 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
a4f606ea
CYY		 4345 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4346 nla_get_u8);
ea54fba2
MP		 4347 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4348 1, 255, mask,
a4f606ea
CYY		 4349 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4350 nla_get_u32);
ea54fba2 4351 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
a4f606ea
CYY		 4352 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4353 nla_get_u8);
ea54fba2 4354 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
a4f606ea
CYY		 4355 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4356 nla_get_u32);
ea54fba2 4357 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
a4f606ea
CYY		 4358 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4359 nla_get_u16);
ea54fba2
MP		 4360 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4361 1, 65535, mask,
a4f606ea
CYY		 4362 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4363 nla_get_u32);
93da9cc1 4364 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
ea54fba2
MP		 4365 1, 65535, mask,
4366 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
a4f606ea 4367 nla_get_u16);
dca7e943 4368 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
ea54fba2
MP		 4369 1, 65535, mask,
4370 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
a4f606ea 4371 nla_get_u16);
93da9cc1 4372 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4373 dot11MeshHWMPnetDiameterTraversalTime,
4374 1, 65535, mask,
a4f606ea
CYY		 4375 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4376 nla_get_u16);
ea54fba2
MP		 4377 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4378 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4379 nla_get_u8);
4380 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4381 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
a4f606ea 4382 nla_get_u16);
63c5723b 4383 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4384 dot11MeshGateAnnouncementProtocol, 0, 1,
4385 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
a4f606ea 4386 nla_get_u8);
ea54fba2 4387 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
a4f606ea
CYY		 4388 mask, NL80211_MESHCONF_FORWARDING,
4389 nla_get_u8);
ea54fba2 4390 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
a4f606ea
CYY		 4391 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4392 nla_get_u32);
ea54fba2 4393 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
a4f606ea 4394 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 4395 nla_get_u16);
4396 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
ea54fba2 4397 1, 65535, mask,
ac1073a6
CYY		 4398 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4399 nla_get_u32);
ea54fba2 4400 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
ac1073a6 4401 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 4402 nla_get_u16);
4403 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
ea54fba2
MP		 4404 dot11MeshHWMPconfirmationInterval,
4405 1, 65535, mask,
728b19e5 4406 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 4407 nla_get_u16);
3b1c5a53
MP		 4408 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4409 NL80211_MESH_POWER_ACTIVE,
4410 NL80211_MESH_POWER_MAX,
4411 mask, NL80211_MESHCONF_POWER_MODE,
4412 nla_get_u32);
4413 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4414 0, 65535, mask,
4415 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
bd90fdcc
JB		 4416 if (mask_out)
4417 *mask_out = mask;
c80d545d 4418
bd90fdcc
JB		 4419 return 0;
4420
4421#undef FILL_IN_MESH_PARAM_IF_SET
4422}
4423
c80d545d
JC		 4424static int nl80211_parse_mesh_setup(struct genl_info *info,
4425 struct mesh_setup *setup)
4426{
4427 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4428
4429 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4430 return -EINVAL;
4431 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4432 info->attrs[NL80211_ATTR_MESH_SETUP],
4433 nl80211_mesh_setup_params_policy))
4434 return -EINVAL;
4435
d299a1f2
JC		 4436 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4437 setup->sync_method =
4438 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4439 IEEE80211_SYNC_METHOD_VENDOR :
4440 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4441
c80d545d
JC		 4442 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4443 setup->path_sel_proto =
4444 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4445 IEEE80211_PATH_PROTOCOL_VENDOR :
4446 IEEE80211_PATH_PROTOCOL_HWMP;
4447
4448 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4449 setup->path_metric =
4450 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4451 IEEE80211_PATH_METRIC_VENDOR :
4452 IEEE80211_PATH_METRIC_AIRTIME;
4453
581a8b0f
JC		 4454
4455 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 4456 struct nlattr *ieattr =
581a8b0f 4457 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 4458 if (!is_valid_ie_attr(ieattr))
4459 return -EINVAL;
581a8b0f
JC		 4460 setup->ie = nla_data(ieattr);
4461 setup->ie_len = nla_len(ieattr);
c80d545d 4462 }
b130e5ce
JC		 4463 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4464 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 4465
4466 return 0;
4467}
4468
24bdd9f4 4469static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 4470 struct genl_info *info)
bd90fdcc
JB		 4471{
4472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4473 struct net_device *dev = info->user_ptr[1];
29cbe68c 4474 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 4475 struct mesh_config cfg;
4476 u32 mask;
4477 int err;
4478
29cbe68c
JB		 4479 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4480 return -EOPNOTSUPP;
4481
24bdd9f4 4482 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 4483 return -EOPNOTSUPP;
4484
24bdd9f4 4485 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 4486 if (err)
4487 return err;
4488
29cbe68c
JB		 4489 wdev_lock(wdev);
4490 if (!wdev->mesh_id_len)
4491 err = -ENOLINK;
4492
4493 if (!err)
e35e4d28 4494 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
29cbe68c
JB		 4495
4496 wdev_unlock(wdev);
4497
4498 return err;
93da9cc1 4499}
4500
f130347c
LR		 4501static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4502{
458f4f9e 4503 const struct ieee80211_regdomain *regdom;
f130347c
LR		 4504 struct sk_buff *msg;
4505 void *hdr = NULL;
4506 struct nlattr *nl_reg_rules;
4507 unsigned int i;
4508 int err = -EINVAL;
4509
a1794390 4510 mutex_lock(&cfg80211_mutex);
f130347c
LR		 4511
4512 if (!cfg80211_regdomain)
4513 goto out;
4514
fd2120ca 4515 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 4516 if (!msg) {
4517 err = -ENOBUFS;
4518 goto out;
4519 }
4520
15e47304 4521 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
f130347c
LR		 4522 NL80211_CMD_GET_REG);
4523 if (!hdr)
efe1cf0c 4524 goto put_failure;
f130347c 4525
57b5ce07
LR		 4526 if (reg_last_request_cell_base() &&
4527 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4528 NL80211_USER_REG_HINT_CELL_BASE))
4529 goto nla_put_failure;
4530
458f4f9e
JB		 4531 rcu_read_lock();
4532 regdom = rcu_dereference(cfg80211_regdomain);
4533
4534 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4535 (regdom->dfs_region &&
4536 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4537 goto nla_put_failure_rcu;
4538
f130347c
LR		 4539 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4540 if (!nl_reg_rules)
458f4f9e 4541 goto nla_put_failure_rcu;
f130347c 4542
458f4f9e 4543 for (i = 0; i < regdom->n_reg_rules; i++) {
f130347c
LR		 4544 struct nlattr *nl_reg_rule;
4545 const struct ieee80211_reg_rule *reg_rule;
4546 const struct ieee80211_freq_range *freq_range;
4547 const struct ieee80211_power_rule *power_rule;
4548
458f4f9e 4549 reg_rule = &regdom->reg_rules[i];
f130347c
LR		 4550 freq_range = &reg_rule->freq_range;
4551 power_rule = &reg_rule->power_rule;
4552
4553 nl_reg_rule = nla_nest_start(msg, i);
4554 if (!nl_reg_rule)
458f4f9e 4555 goto nla_put_failure_rcu;
f130347c 4556
9360ffd1
DM		 4557 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4558 reg_rule->flags) ||
4559 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4560 freq_range->start_freq_khz) ||
4561 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4562 freq_range->end_freq_khz) ||
4563 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4564 freq_range->max_bandwidth_khz) ||
4565 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4566 power_rule->max_antenna_gain) ||
4567 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4568 power_rule->max_eirp))
458f4f9e 4569 goto nla_put_failure_rcu;
f130347c
LR		 4570
4571 nla_nest_end(msg, nl_reg_rule);
4572 }
458f4f9e 4573 rcu_read_unlock();
f130347c
LR		 4574
4575 nla_nest_end(msg, nl_reg_rules);
4576
4577 genlmsg_end(msg, hdr);
134e6375 4578 err = genlmsg_reply(msg, info);
f130347c
LR		 4579 goto out;
4580
458f4f9e
JB		 4581nla_put_failure_rcu:
4582 rcu_read_unlock();
f130347c
LR		 4583nla_put_failure:
4584 genlmsg_cancel(msg, hdr);
efe1cf0c 4585put_failure:
d080e275 4586 nlmsg_free(msg);
f130347c
LR		 4587 err = -EMSGSIZE;
4588out:
a1794390 4589 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4590 return err;
4591}
4592
b2e1b302
LR		 4593static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4594{
4595 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4596 struct nlattr *nl_reg_rule;
4597 char *alpha2 = NULL;
4598 int rem_reg_rules = 0, r = 0;
4599 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4600 u8 dfs_region = 0;
b2e1b302
LR		 4601 struct ieee80211_regdomain *rd = NULL;
4602
4603 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4604 return -EINVAL;
4605
4606 if (!info->attrs[NL80211_ATTR_REG_RULES])
4607 return -EINVAL;
4608
4609 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4610
8b60b078
LR		 4611 if (info->attrs[NL80211_ATTR_DFS_REGION])
4612 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4613
b2e1b302 4614 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4615 rem_reg_rules) {
b2e1b302
LR		 4616 num_rules++;
4617 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4618 return -EINVAL;
b2e1b302
LR		 4619 }
4620
b2e1b302 4621 size_of_regd = sizeof(struct ieee80211_regdomain) +
1a919318 4622 num_rules * sizeof(struct ieee80211_reg_rule);
b2e1b302
LR		 4623
4624 rd = kzalloc(size_of_regd, GFP_KERNEL);
6913b49a
JB		 4625 if (!rd)
4626 return -ENOMEM;
b2e1b302
LR		 4627
4628 rd->n_reg_rules = num_rules;
4629 rd->alpha2[0] = alpha2[0];
4630 rd->alpha2[1] = alpha2[1];
4631
8b60b078
LR		 4632 /*
4633 * Disable DFS master mode if the DFS region was
4634 * not supported or known on this kernel.
4635 */
4636 if (reg_supported_dfs_region(dfs_region))
4637 rd->dfs_region = dfs_region;
4638
b2e1b302 4639 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1a919318 4640 rem_reg_rules) {
b2e1b302 4641 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1a919318
JB		 4642 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4643 reg_rule_policy);
b2e1b302
LR		 4644 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4645 if (r)
4646 goto bad_reg;
4647
4648 rule_idx++;
4649
d0e18f83
LR		 4650 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4651 r = -EINVAL;
b2e1b302 4652 goto bad_reg;
d0e18f83 4653 }
b2e1b302
LR		 4654 }
4655
6913b49a
JB		 4656 mutex_lock(&cfg80211_mutex);
4657
b2e1b302 4658 r = set_regdom(rd);
6913b49a 4659 /* set_regdom took ownership */
1a919318 4660 rd = NULL;
6913b49a 4661 mutex_unlock(&cfg80211_mutex);
b2e1b302 4662
d2372b31 4663 bad_reg:
b2e1b302 4664 kfree(rd);
d0e18f83 4665 return r;
b2e1b302
LR		 4666}
4667
83f5e2cf
JB		 4668static int validate_scan_freqs(struct nlattr *freqs)
4669{
4670 struct nlattr *attr1, *attr2;
4671 int n_channels = 0, tmp1, tmp2;
4672
4673 nla_for_each_nested(attr1, freqs, tmp1) {
4674 n_channels++;
4675 /*
4676 * Some hardware has a limited channel list for
4677 * scanning, and it is pretty much nonsensical
4678 * to scan for a channel twice, so disallow that
4679 * and don't require drivers to check that the
4680 * channel list they get isn't longer than what
4681 * they can scan, as long as they can scan all
4682 * the channels they registered at once.
4683 */
4684 nla_for_each_nested(attr2, freqs, tmp2)
4685 if (attr1 != attr2 &&
4686 nla_get_u32(attr1) == nla_get_u32(attr2))
4687 return 0;
4688 }
4689
4690 return n_channels;
4691}
4692
2a519311
JB		 4693static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4694{
4c476991 4695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4696 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4697 struct cfg80211_scan_request *request;
2a519311
JB		 4698 struct nlattr *attr;
4699 struct wiphy *wiphy;
83f5e2cf 4700 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4701 size_t ie_len;
2a519311 4702
f4a11bb0
JB		 4703 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4704 return -EINVAL;
4705
79c97e97 4706 wiphy = &rdev->wiphy;
2a519311 4707
4c476991
JB		 4708 if (!rdev->ops->scan)
4709 return -EOPNOTSUPP;
2a519311 4710
4c476991
JB		 4711 if (rdev->scan_req)
4712 return -EBUSY;
2a519311
JB		 4713
4714 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4715 n_channels = validate_scan_freqs(
4716 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4717 if (!n_channels)
4718 return -EINVAL;
2a519311 4719 } else {
34850ab2 4720 enum ieee80211_band band;
83f5e2cf
JB		 4721 n_channels = 0;
4722
2a519311
JB		 4723 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4724 if (wiphy->bands[band])
4725 n_channels += wiphy->bands[band]->n_channels;
4726 }
4727
4728 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4729 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4730 n_ssids++;
4731
4c476991
JB		 4732 if (n_ssids > wiphy->max_scan_ssids)
4733 return -EINVAL;
2a519311 4734
70692ad2
JM		 4735 if (info->attrs[NL80211_ATTR_IE])
4736 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4737 else
4738 ie_len = 0;
4739
4c476991
JB		 4740 if (ie_len > wiphy->max_scan_ie_len)
4741 return -EINVAL;
18a83659 4742
2a519311 4743 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4744 + sizeof(*request->ssids) * n_ssids
4745 + sizeof(*request->channels) * n_channels
70692ad2 4746 + ie_len, GFP_KERNEL);
4c476991
JB		 4747 if (!request)
4748 return -ENOMEM;
2a519311 4749
2a519311 4750 if (n_ssids)
5ba63533 4751 request->ssids = (void *)&request->channels[n_channels];
2a519311 4752 request->n_ssids = n_ssids;
70692ad2
JM		 4753 if (ie_len) {
4754 if (request->ssids)
4755 request->ie = (void *)(request->ssids + n_ssids);
4756 else
4757 request->ie = (void *)(request->channels + n_channels);
4758 }
2a519311 4759
584991dc 4760 i = 0;
2a519311
JB		 4761 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4762 /* user specified, bail out if channel not found */
2a519311 4763 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4764 struct ieee80211_channel *chan;
4765
4766 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4767
4768 if (!chan) {
2a519311
JB		 4769 err = -EINVAL;
4770 goto out_free;
4771 }
584991dc
JB		 4772
4773 /* ignore disabled channels */
4774 if (chan->flags & IEEE80211_CHAN_DISABLED)
4775 continue;
4776
4777 request->channels[i] = chan;
2a519311
JB		 4778 i++;
4779 }
4780 } else {
34850ab2
JB		 4781 enum ieee80211_band band;
4782
2a519311 4783 /* all channels */
2a519311
JB		 4784 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4785 int j;
4786 if (!wiphy->bands[band])
4787 continue;
4788 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4789 struct ieee80211_channel *chan;
4790
4791 chan = &wiphy->bands[band]->channels[j];
4792
4793 if (chan->flags & IEEE80211_CHAN_DISABLED)
4794 continue;
4795
4796 request->channels[i] = chan;
2a519311
JB		 4797 i++;
4798 }
4799 }
4800 }
4801
584991dc
JB		 4802 if (!i) {
4803 err = -EINVAL;
4804 goto out_free;
4805 }
4806
4807 request->n_channels = i;
4808
2a519311
JB		 4809 i = 0;
4810 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4811 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4812 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4813 err = -EINVAL;
4814 goto out_free;
4815 }
57a27e1d 4816 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4817 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4818 i++;
4819 }
4820 }
4821
70692ad2
JM		 4822 if (info->attrs[NL80211_ATTR_IE]) {
4823 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4824 memcpy((void *)request->ie,
4825 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4826 request->ie_len);
4827 }
4828
34850ab2 4829 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4830 if (wiphy->bands[i])
4831 request->rates[i] =
4832 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4833
4834 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4835 nla_for_each_nested(attr,
4836 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4837 tmp) {
4838 enum ieee80211_band band = nla_type(attr);
4839
84404623 4840 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4841 err = -EINVAL;
4842 goto out_free;
4843 }
4844 err = ieee80211_get_ratemask(wiphy->bands[band],
4845 nla_data(attr),
4846 nla_len(attr),
4847 &request->rates[band]);
4848 if (err)
4849 goto out_free;
4850 }
4851 }
4852
46856bbf 4853 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 4854 request->flags = nla_get_u32(
4855 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 4856 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4857 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4858 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4859 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 4860 err = -EOPNOTSUPP;
4861 goto out_free;
4862 }
4863 }
ed473771 4864
e9f935e3
RM		 4865 request->no_cck =
4866 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4867
fd014284 4868 request->wdev = wdev;
79c97e97 4869 request->wiphy = &rdev->wiphy;
15d6030b 4870 request->scan_start = jiffies;
2a519311 4871
79c97e97 4872 rdev->scan_req = request;
e35e4d28 4873 err = rdev_scan(rdev, request);
2a519311 4874
463d0183 4875 if (!err) {
fd014284
JB		 4876 nl80211_send_scan_start(rdev, wdev);
4877 if (wdev->netdev)
4878 dev_hold(wdev->netdev);
4c476991 4879 } else {
2a519311 4880 out_free:
79c97e97 4881 rdev->scan_req = NULL;
2a519311
JB		 4882 kfree(request);
4883 }
3b85875a 4884
2a519311
JB		 4885 return err;
4886}
4887
807f8a8c
LC		 4888static int nl80211_start_sched_scan(struct sk_buff *skb,
4889 struct genl_info *info)
4890{
4891 struct cfg80211_sched_scan_request *request;
4892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4893 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4894 struct nlattr *attr;
4895 struct wiphy *wiphy;
a1f1c21c 4896 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4897 u32 interval;
807f8a8c
LC		 4898 enum ieee80211_band band;
4899 size_t ie_len;
a1f1c21c 4900 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4901
4902 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4903 !rdev->ops->sched_scan_start)
4904 return -EOPNOTSUPP;
4905
4906 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4907 return -EINVAL;
4908
bbe6ad6d
LC		 4909 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4910 return -EINVAL;
4911
4912 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4913 if (interval == 0)
4914 return -EINVAL;
4915
807f8a8c
LC		 4916 wiphy = &rdev->wiphy;
4917
4918 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4919 n_channels = validate_scan_freqs(
4920 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4921 if (!n_channels)
4922 return -EINVAL;
4923 } else {
4924 n_channels = 0;
4925
4926 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4927 if (wiphy->bands[band])
4928 n_channels += wiphy->bands[band]->n_channels;
4929 }
4930
4931 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4932 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4933 tmp)
4934 n_ssids++;
4935
93b6aa69 4936 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4937 return -EINVAL;
4938
a1f1c21c
LC		 4939 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4940 nla_for_each_nested(attr,
4941 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4942 tmp)
4943 n_match_sets++;
4944
4945 if (n_match_sets > wiphy->max_match_sets)
4946 return -EINVAL;
4947
807f8a8c
LC		 4948 if (info->attrs[NL80211_ATTR_IE])
4949 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4950 else
4951 ie_len = 0;
4952
5a865bad 4953 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4954 return -EINVAL;
4955
c10841ca
LC		 4956 mutex_lock(&rdev->sched_scan_mtx);
4957
4958 if (rdev->sched_scan_req) {
4959 err = -EINPROGRESS;
4960 goto out;
4961 }
4962
807f8a8c 4963 request = kzalloc(sizeof(*request)
a2cd43c5 4964 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4965 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4966 + sizeof(*request->channels) * n_channels
807f8a8c 4967 + ie_len, GFP_KERNEL);
c10841ca
LC		 4968 if (!request) {
4969 err = -ENOMEM;
4970 goto out;
4971 }
807f8a8c
LC		 4972
4973 if (n_ssids)
4974 request->ssids = (void *)&request->channels[n_channels];
4975 request->n_ssids = n_ssids;
4976 if (ie_len) {
4977 if (request->ssids)
4978 request->ie = (void *)(request->ssids + n_ssids);
4979 else
4980 request->ie = (void *)(request->channels + n_channels);
4981 }
4982
a1f1c21c
LC		 4983 if (n_match_sets) {
4984 if (request->ie)
4985 request->match_sets = (void *)(request->ie + ie_len);
4986 else if (request->ssids)
4987 request->match_sets =
4988 (void *)(request->ssids + n_ssids);
4989 else
4990 request->match_sets =
4991 (void *)(request->channels + n_channels);
4992 }
4993 request->n_match_sets = n_match_sets;
4994
807f8a8c
LC		 4995 i = 0;
4996 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4997 /* user specified, bail out if channel not found */
4998 nla_for_each_nested(attr,
4999 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5000 tmp) {
5001 struct ieee80211_channel *chan;
5002
5003 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5004
5005 if (!chan) {
5006 err = -EINVAL;
5007 goto out_free;
5008 }
5009
5010 /* ignore disabled channels */
5011 if (chan->flags & IEEE80211_CHAN_DISABLED)
5012 continue;
5013
5014 request->channels[i] = chan;
5015 i++;
5016 }
5017 } else {
5018 /* all channels */
5019 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5020 int j;
5021 if (!wiphy->bands[band])
5022 continue;
5023 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5024 struct ieee80211_channel *chan;
5025
5026 chan = &wiphy->bands[band]->channels[j];
5027
5028 if (chan->flags & IEEE80211_CHAN_DISABLED)
5029 continue;
5030
5031 request->channels[i] = chan;
5032 i++;
5033 }
5034 }
5035 }
5036
5037 if (!i) {
5038 err = -EINVAL;
5039 goto out_free;
5040 }
5041
5042 request->n_channels = i;
5043
5044 i = 0;
5045 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5046 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5047 tmp) {
57a27e1d 5048 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 5049 err = -EINVAL;
5050 goto out_free;
5051 }
57a27e1d 5052 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 5053 memcpy(request->ssids[i].ssid, nla_data(attr),
5054 nla_len(attr));
807f8a8c
LC		 5055 i++;
5056 }
5057 }
5058
a1f1c21c
LC		 5059 i = 0;
5060 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5061 nla_for_each_nested(attr,
5062 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5063 tmp) {
88e920b4 5064 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 5065
5066 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5067 nla_data(attr), nla_len(attr),
5068 nl80211_match_policy);
4a4ab0d7 5069 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 5070 if (ssid) {
5071 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5072 err = -EINVAL;
5073 goto out_free;
5074 }
5075 memcpy(request->match_sets[i].ssid.ssid,
5076 nla_data(ssid), nla_len(ssid));
5077 request->match_sets[i].ssid.ssid_len =
5078 nla_len(ssid);
5079 }
88e920b4
TP		 5080 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5081 if (rssi)
5082 request->rssi_thold = nla_get_u32(rssi);
5083 else
5084 request->rssi_thold =
5085 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 5086 i++;
5087 }
5088 }
5089
807f8a8c
LC		 5090 if (info->attrs[NL80211_ATTR_IE]) {
5091 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5092 memcpy((void *)request->ie,
5093 nla_data(info->attrs[NL80211_ATTR_IE]),
5094 request->ie_len);
5095 }
5096
46856bbf 5097 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
ed473771
SL		 5098 request->flags = nla_get_u32(
5099 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
15d6030b
SL		 5100 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5101 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5102 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5103 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
46856bbf
SL		 5104 err = -EOPNOTSUPP;
5105 goto out_free;
5106 }
5107 }
ed473771 5108
807f8a8c
LC		 5109 request->dev = dev;
5110 request->wiphy = &rdev->wiphy;
bbe6ad6d 5111 request->interval = interval;
15d6030b 5112 request->scan_start = jiffies;
807f8a8c 5113
e35e4d28 5114 err = rdev_sched_scan_start(rdev, dev, request);
807f8a8c
LC		 5115 if (!err) {
5116 rdev->sched_scan_req = request;
5117 nl80211_send_sched_scan(rdev, dev,
5118 NL80211_CMD_START_SCHED_SCAN);
5119 goto out;
5120 }
5121
5122out_free:
5123 kfree(request);
5124out:
c10841ca 5125 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 5126 return err;
5127}
5128
5129static int nl80211_stop_sched_scan(struct sk_buff *skb,
5130 struct genl_info *info)
5131{
5132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 5133 int err;
807f8a8c
LC		 5134
5135 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5136 !rdev->ops->sched_scan_stop)
5137 return -EOPNOTSUPP;
5138
c10841ca
LC		 5139 mutex_lock(&rdev->sched_scan_mtx);
5140 err = __cfg80211_stop_sched_scan(rdev, false);
5141 mutex_unlock(&rdev->sched_scan_mtx);
5142
5143 return err;
807f8a8c
LC		 5144}
5145
04f39047
SW		 5146static int nl80211_start_radar_detection(struct sk_buff *skb,
5147 struct genl_info *info)
5148{
5149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5150 struct net_device *dev = info->user_ptr[1];
5151 struct wireless_dev *wdev = dev->ieee80211_ptr;
5152 struct cfg80211_chan_def chandef;
5153 int err;
5154
5155 err = nl80211_parse_chandef(rdev, info, &chandef);
5156 if (err)
5157 return err;
5158
5159 if (wdev->cac_started)
5160 return -EBUSY;
5161
5162 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5163 if (err < 0)
5164 return err;
5165
5166 if (err == 0)
5167 return -EINVAL;
5168
5169 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5170 return -EINVAL;
5171
5172 if (!rdev->ops->start_radar_detection)
5173 return -EOPNOTSUPP;
5174
5175 mutex_lock(&rdev->devlist_mtx);
5176 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5177 chandef.chan, CHAN_MODE_SHARED,
5178 BIT(chandef.width));
5179 if (err)
5180 goto err_locked;
5181
5182 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5183 if (!err) {
5184 wdev->channel = chandef.chan;
5185 wdev->cac_started = true;
5186 wdev->cac_start_time = jiffies;
5187 }
5188err_locked:
5189 mutex_unlock(&rdev->devlist_mtx);
5190
5191 return err;
5192}
5193
9720bb3a
JB		 5194static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5195 u32 seq, int flags,
2a519311 5196 struct cfg80211_registered_device *rdev,
48ab905d
JB		 5197 struct wireless_dev *wdev,
5198 struct cfg80211_internal_bss *intbss)
2a519311 5199{
48ab905d 5200 struct cfg80211_bss *res = &intbss->pub;
9caf0364 5201 const struct cfg80211_bss_ies *ies;
2a519311
JB		 5202 void *hdr;
5203 struct nlattr *bss;
8cef2c9d 5204 bool tsf = false;
48ab905d
JB		 5205
5206 ASSERT_WDEV_LOCK(wdev);
2a519311 5207
15e47304 5208 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
2a519311
JB		 5209 NL80211_CMD_NEW_SCAN_RESULTS);
5210 if (!hdr)
5211 return -1;
5212
9720bb3a
JB		 5213 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5214
9360ffd1
DM		 5215 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5216 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5217 goto nla_put_failure;
2a519311
JB		 5218
5219 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5220 if (!bss)
5221 goto nla_put_failure;
9360ffd1 5222 if ((!is_zero_ether_addr(res->bssid) &&
9caf0364 5223 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
9360ffd1 5224 goto nla_put_failure;
9caf0364
JB		 5225
5226 rcu_read_lock();
5227 ies = rcu_dereference(res->ies);
8cef2c9d
JB		 5228 if (ies) {
5229 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5230 goto fail_unlock_rcu;
5231 tsf = true;
5232 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5233 ies->len, ies->data))
5234 goto fail_unlock_rcu;
9caf0364
JB		 5235 }
5236 ies = rcu_dereference(res->beacon_ies);
8cef2c9d
JB		 5237 if (ies) {
5238 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5239 goto fail_unlock_rcu;
5240 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5241 ies->len, ies->data))
5242 goto fail_unlock_rcu;
9caf0364
JB		 5243 }
5244 rcu_read_unlock();
5245
9360ffd1
DM		 5246 if (res->beacon_interval &&
5247 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5248 goto nla_put_failure;
5249 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5250 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5251 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5252 jiffies_to_msecs(jiffies - intbss->ts)))
5253 goto nla_put_failure;
2a519311 5254
77965c97 5255 switch (rdev->wiphy.signal_type) {
2a519311 5256 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 5257 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5258 goto nla_put_failure;
2a519311
JB		 5259 break;
5260 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 5261 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5262 goto nla_put_failure;
2a519311
JB		 5263 break;
5264 default:
5265 break;
5266 }
5267
48ab905d 5268 switch (wdev->iftype) {
074ac8df 5269 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 5270 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 5271 if (intbss == wdev->current_bss &&
5272 nla_put_u32(msg, NL80211_BSS_STATUS,
5273 NL80211_BSS_STATUS_ASSOCIATED))
5274 goto nla_put_failure;
48ab905d
JB		 5275 break;
5276 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 5277 if (intbss == wdev->current_bss &&
5278 nla_put_u32(msg, NL80211_BSS_STATUS,
5279 NL80211_BSS_STATUS_IBSS_JOINED))
5280 goto nla_put_failure;
48ab905d
JB		 5281 break;
5282 default:
5283 break;
5284 }
5285
2a519311
JB		 5286 nla_nest_end(msg, bss);
5287
5288 return genlmsg_end(msg, hdr);
5289
8cef2c9d
JB		 5290 fail_unlock_rcu:
5291 rcu_read_unlock();
2a519311
JB		 5292 nla_put_failure:
5293 genlmsg_cancel(msg, hdr);
5294 return -EMSGSIZE;
5295}
5296
5297static int nl80211_dump_scan(struct sk_buff *skb,
5298 struct netlink_callback *cb)
5299{
48ab905d
JB		 5300 struct cfg80211_registered_device *rdev;
5301 struct net_device *dev;
2a519311 5302 struct cfg80211_internal_bss *scan;
48ab905d 5303 struct wireless_dev *wdev;
2a519311
JB		 5304 int start = cb->args[1], idx = 0;
5305 int err;
5306
67748893
JB		 5307 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5308 if (err)
5309 return err;
2a519311 5310
48ab905d 5311 wdev = dev->ieee80211_ptr;
2a519311 5312
48ab905d
JB		 5313 wdev_lock(wdev);
5314 spin_lock_bh(&rdev->bss_lock);
5315 cfg80211_bss_expire(rdev);
5316
9720bb3a
JB		 5317 cb->seq = rdev->bss_generation;
5318
48ab905d 5319 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 5320 if (++idx <= start)
5321 continue;
9720bb3a 5322 if (nl80211_send_bss(skb, cb,
2a519311 5323 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 5324 rdev, wdev, scan) < 0) {
2a519311 5325 idx--;
67748893 5326 break;
2a519311
JB		 5327 }
5328 }
5329
48ab905d
JB		 5330 spin_unlock_bh(&rdev->bss_lock);
5331 wdev_unlock(wdev);
2a519311
JB		 5332
5333 cb->args[1] = idx;
67748893 5334 nl80211_finish_netdev_dump(rdev);
2a519311 5335
67748893 5336 return skb->len;
2a519311
JB		 5337}
5338
15e47304 5339static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
61fa713c
HS		 5340 int flags, struct net_device *dev,
5341 struct survey_info *survey)
5342{
5343 void *hdr;
5344 struct nlattr *infoattr;
5345
15e47304 5346 hdr = nl80211hdr_put(msg, portid, seq, flags,
61fa713c
HS		 5347 NL80211_CMD_NEW_SURVEY_RESULTS);
5348 if (!hdr)
5349 return -ENOMEM;
5350
9360ffd1
DM		 5351 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5352 goto nla_put_failure;
61fa713c
HS		 5353
5354 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5355 if (!infoattr)
5356 goto nla_put_failure;
5357
9360ffd1
DM		 5358 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5359 survey->channel->center_freq))
5360 goto nla_put_failure;
5361
5362 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5363 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5364 goto nla_put_failure;
5365 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5366 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5367 goto nla_put_failure;
5368 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5369 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5370 survey->channel_time))
5371 goto nla_put_failure;
5372 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5373 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5374 survey->channel_time_busy))
5375 goto nla_put_failure;
5376 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5377 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5378 survey->channel_time_ext_busy))
5379 goto nla_put_failure;
5380 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5381 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5382 survey->channel_time_rx))
5383 goto nla_put_failure;
5384 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5385 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5386 survey->channel_time_tx))
5387 goto nla_put_failure;
61fa713c
HS		 5388
5389 nla_nest_end(msg, infoattr);
5390
5391 return genlmsg_end(msg, hdr);
5392
5393 nla_put_failure:
5394 genlmsg_cancel(msg, hdr);
5395 return -EMSGSIZE;
5396}
5397
5398static int nl80211_dump_survey(struct sk_buff *skb,
5399 struct netlink_callback *cb)
5400{
5401 struct survey_info survey;
5402 struct cfg80211_registered_device *dev;
5403 struct net_device *netdev;
61fa713c
HS		 5404 int survey_idx = cb->args[1];
5405 int res;
5406
67748893
JB		 5407 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5408 if (res)
5409 return res;
61fa713c
HS		 5410
5411 if (!dev->ops->dump_survey) {
5412 res = -EOPNOTSUPP;
5413 goto out_err;
5414 }
5415
5416 while (1) {
180cdc79
LR		 5417 struct ieee80211_channel *chan;
5418
e35e4d28 5419 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
61fa713c
HS		 5420 if (res == -ENOENT)
5421 break;
5422 if (res)
5423 goto out_err;
5424
180cdc79
LR		 5425 /* Survey without a channel doesn't make sense */
5426 if (!survey.channel) {
5427 res = -EINVAL;
5428 goto out;
5429 }
5430
5431 chan = ieee80211_get_channel(&dev->wiphy,
5432 survey.channel->center_freq);
5433 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5434 survey_idx++;
5435 continue;
5436 }
5437
61fa713c 5438 if (nl80211_send_survey(skb,
15e47304 5439 NETLINK_CB(cb->skb).portid,
61fa713c
HS		 5440 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5441 netdev,
5442 &survey) < 0)
5443 goto out;
5444 survey_idx++;
5445 }
5446
5447 out:
5448 cb->args[1] = survey_idx;
5449 res = skb->len;
5450 out_err:
67748893 5451 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 5452 return res;
5453}
5454
b23aa676
SO		 5455static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5456{
5457 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5458 NL80211_WPA_VERSION_2));
5459}
5460
636a5d36
JM		 5461static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5462{
4c476991
JB		 5463 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5464 struct net_device *dev = info->user_ptr[1];
19957bb3 5465 struct ieee80211_channel *chan;
e39e5b5e
JM		 5466 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5467 int err, ssid_len, ie_len = 0, sae_data_len = 0;
19957bb3 5468 enum nl80211_auth_type auth_type;
fffd0934 5469 struct key_parse key;
d5cdfacb 5470 bool local_state_change;
636a5d36 5471
f4a11bb0
JB		 5472 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5473 return -EINVAL;
5474
5475 if (!info->attrs[NL80211_ATTR_MAC])
5476 return -EINVAL;
5477
1778092e
JM		 5478 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5479 return -EINVAL;
5480
19957bb3
JB		 5481 if (!info->attrs[NL80211_ATTR_SSID])
5482 return -EINVAL;
5483
5484 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5485 return -EINVAL;
5486
fffd0934
JB		 5487 err = nl80211_parse_key(info, &key);
5488 if (err)
5489 return err;
5490
5491 if (key.idx >= 0) {
e31b8213
JB		 5492 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5493 return -EINVAL;
fffd0934
JB		 5494 if (!key.p.key || !key.p.key_len)
5495 return -EINVAL;
5496 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5497 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5498 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5499 key.p.key_len != WLAN_KEY_LEN_WEP104))
5500 return -EINVAL;
5501 if (key.idx > 4)
5502 return -EINVAL;
5503 } else {
5504 key.p.key_len = 0;
5505 key.p.key = NULL;
5506 }
5507
afea0b7a
JB		 5508 if (key.idx >= 0) {
5509 int i;
5510 bool ok = false;
5511 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5512 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5513 ok = true;
5514 break;
5515 }
5516 }
4c476991
JB		 5517 if (!ok)
5518 return -EINVAL;
afea0b7a
JB		 5519 }
5520
4c476991
JB		 5521 if (!rdev->ops->auth)
5522 return -EOPNOTSUPP;
636a5d36 5523
074ac8df 5524 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5525 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5526 return -EOPNOTSUPP;
eec60b03 5527
19957bb3 5528 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 5529 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 5530 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5531 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5532 return -EINVAL;
636a5d36 5533
19957bb3
JB		 5534 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5535 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5536
5537 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5538 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5539 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5540 }
5541
19957bb3 5542 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e 5543 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
4c476991 5544 return -EINVAL;
636a5d36 5545
e39e5b5e
JM		 5546 if (auth_type == NL80211_AUTHTYPE_SAE &&
5547 !info->attrs[NL80211_ATTR_SAE_DATA])
5548 return -EINVAL;
5549
5550 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5551 if (auth_type != NL80211_AUTHTYPE_SAE)
5552 return -EINVAL;
5553 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5554 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5555 /* need to include at least Auth Transaction and Status Code */
5556 if (sae_data_len < 4)
5557 return -EINVAL;
5558 }
5559
d5cdfacb
JM		 5560 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5561
95de817b
JB		 5562 /*
5563 * Since we no longer track auth state, ignore
5564 * requests to only change local state.
5565 */
5566 if (local_state_change)
5567 return 0;
5568
4c476991
JB		 5569 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5570 ssid, ssid_len, ie, ie_len,
e39e5b5e
JM		 5571 key.p.key, key.p.key_len, key.idx,
5572 sae_data, sae_data_len);
636a5d36
JM		 5573}
5574
c0692b8f
JB		 5575static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5576 struct genl_info *info,
3dc27d25
JB		 5577 struct cfg80211_crypto_settings *settings,
5578 int cipher_limit)
b23aa676 5579{
c0b2bbd8
JB		 5580 memset(settings, 0, sizeof(*settings));
5581
b23aa676
SO		 5582 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5583
c0692b8f
JB		 5584 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5585 u16 proto;
5586 proto = nla_get_u16(
5587 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5588 settings->control_port_ethertype = cpu_to_be16(proto);
5589 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5590 proto != ETH_P_PAE)
5591 return -EINVAL;
5592 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5593 settings->control_port_no_encrypt = true;
5594 } else
5595 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5596
b23aa676
SO		 5597 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5598 void *data;
5599 int len, i;
5600
5601 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5602 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5603 settings->n_ciphers_pairwise = len / sizeof(u32);
5604
5605 if (len % sizeof(u32))
5606 return -EINVAL;
5607
3dc27d25 5608 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 5609 return -EINVAL;
5610
5611 memcpy(settings->ciphers_pairwise, data, len);
5612
5613 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 5614 if (!cfg80211_supported_cipher_suite(
5615 &rdev->wiphy,
b23aa676
SO		 5616 settings->ciphers_pairwise[i]))
5617 return -EINVAL;
5618 }
5619
5620 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5621 settings->cipher_group =
5622 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 5623 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5624 settings->cipher_group))
b23aa676
SO		 5625 return -EINVAL;
5626 }
5627
5628 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5629 settings->wpa_versions =
5630 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5631 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5632 return -EINVAL;
5633 }
5634
5635 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5636 void *data;
6d30240e 5637 int len;
b23aa676
SO		 5638
5639 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5640 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5641 settings->n_akm_suites = len / sizeof(u32);
5642
5643 if (len % sizeof(u32))
5644 return -EINVAL;
5645
1b9ca027
JM		 5646 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5647 return -EINVAL;
5648
b23aa676 5649 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5650 }
5651
5652 return 0;
5653}
5654
636a5d36
JM		 5655static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5656{
4c476991
JB		 5657 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5658 struct net_device *dev = info->user_ptr[1];
19957bb3 5659 struct cfg80211_crypto_settings crypto;
f444de05 5660 struct ieee80211_channel *chan;
3e5d7649 5661 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5662 int err, ssid_len, ie_len = 0;
5663 bool use_mfp = false;
7e7c8926
BG		 5664 u32 flags = 0;
5665 struct ieee80211_ht_cap *ht_capa = NULL;
5666 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5667
f4a11bb0
JB		 5668 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5669 return -EINVAL;
5670
5671 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5672 !info->attrs[NL80211_ATTR_SSID] ||
5673 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5674 return -EINVAL;
5675
4c476991
JB		 5676 if (!rdev->ops->assoc)
5677 return -EOPNOTSUPP;
636a5d36 5678
074ac8df 5679 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5680 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5681 return -EOPNOTSUPP;
eec60b03 5682
19957bb3 5683 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5684
19957bb3
JB		 5685 chan = ieee80211_get_channel(&rdev->wiphy,
5686 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5687 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5688 return -EINVAL;
636a5d36 5689
19957bb3
JB		 5690 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5691 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5692
5693 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5694 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5695 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5696 }
5697
dc6382ce 5698 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5699 enum nl80211_mfp mfp =
dc6382ce 5700 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5701 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5702 use_mfp = true;
4c476991
JB		 5703 else if (mfp != NL80211_MFP_NO)
5704 return -EINVAL;
dc6382ce
JM		 5705 }
5706
3e5d7649
JB		 5707 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5708 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5709
7e7c8926
BG		 5710 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5711 flags |= ASSOC_REQ_DISABLE_HT;
5712
5713 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5714 ht_capa_mask =
5715 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5716
5717 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5718 if (!ht_capa_mask)
5719 return -EINVAL;
5720 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5721 }
5722
c0692b8f 5723 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5724 if (!err)
3e5d7649
JB		 5725 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5726 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5727 &crypto, flags, ht_capa,
5728 ht_capa_mask);
636a5d36 5729
636a5d36
JM		 5730 return err;
5731}
5732
5733static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5734{
4c476991
JB		 5735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5736 struct net_device *dev = info->user_ptr[1];
19957bb3 5737 const u8 *ie = NULL, *bssid;
4c476991 5738 int ie_len = 0;
19957bb3 5739 u16 reason_code;
d5cdfacb 5740 bool local_state_change;
636a5d36 5741
f4a11bb0
JB		 5742 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5743 return -EINVAL;
5744
5745 if (!info->attrs[NL80211_ATTR_MAC])
5746 return -EINVAL;
5747
5748 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5749 return -EINVAL;
5750
4c476991
JB		 5751 if (!rdev->ops->deauth)
5752 return -EOPNOTSUPP;
636a5d36 5753
074ac8df 5754 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5755 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5756 return -EOPNOTSUPP;
eec60b03 5757
19957bb3 5758 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5759
19957bb3
JB		 5760 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5761 if (reason_code == 0) {
f4a11bb0 5762 /* Reason Code 0 is reserved */
4c476991 5763 return -EINVAL;
255e737e 5764 }
636a5d36
JM		 5765
5766 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5767 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5768 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5769 }
5770
d5cdfacb
JM		 5771 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5772
4c476991
JB		 5773 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5774 local_state_change);
636a5d36
JM		 5775}
5776
5777static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5778{
4c476991
JB		 5779 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5780 struct net_device *dev = info->user_ptr[1];
19957bb3 5781 const u8 *ie = NULL, *bssid;
4c476991 5782 int ie_len = 0;
19957bb3 5783 u16 reason_code;
d5cdfacb 5784 bool local_state_change;
636a5d36 5785
f4a11bb0
JB		 5786 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5787 return -EINVAL;
5788
5789 if (!info->attrs[NL80211_ATTR_MAC])
5790 return -EINVAL;
5791
5792 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5793 return -EINVAL;
5794
4c476991
JB		 5795 if (!rdev->ops->disassoc)
5796 return -EOPNOTSUPP;
636a5d36 5797
074ac8df 5798 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5799 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5800 return -EOPNOTSUPP;
eec60b03 5801
19957bb3 5802 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5803
19957bb3
JB		 5804 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5805 if (reason_code == 0) {
f4a11bb0 5806 /* Reason Code 0 is reserved */
4c476991 5807 return -EINVAL;
255e737e 5808 }
636a5d36
JM		 5809
5810 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5811 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5812 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5813 }
5814
d5cdfacb
JM		 5815 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5816
4c476991
JB		 5817 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5818 local_state_change);
636a5d36
JM		 5819}
5820
dd5b4cc7
FF		 5821static bool
5822nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5823 int mcast_rate[IEEE80211_NUM_BANDS],
5824 int rateval)
5825{
5826 struct wiphy *wiphy = &rdev->wiphy;
5827 bool found = false;
5828 int band, i;
5829
5830 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5831 struct ieee80211_supported_band *sband;
5832
5833 sband = wiphy->bands[band];
5834 if (!sband)
5835 continue;
5836
5837 for (i = 0; i < sband->n_bitrates; i++) {
5838 if (sband->bitrates[i].bitrate == rateval) {
5839 mcast_rate[band] = i + 1;
5840 found = true;
5841 break;
5842 }
5843 }
5844 }
5845
5846 return found;
5847}
5848
04a773ad
JB		 5849static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5850{
4c476991
JB		 5851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5852 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5853 struct cfg80211_ibss_params ibss;
5854 struct wiphy *wiphy;
fffd0934 5855 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5856 int err;
5857
8e30bc55
JB		 5858 memset(&ibss, 0, sizeof(ibss));
5859
04a773ad
JB		 5860 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5861 return -EINVAL;
5862
683b6d3b 5863 if (!info->attrs[NL80211_ATTR_SSID] ||
04a773ad
JB		 5864 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5865 return -EINVAL;
5866
8e30bc55
JB		 5867 ibss.beacon_interval = 100;
5868
5869 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5870 ibss.beacon_interval =
5871 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5872 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5873 return -EINVAL;
5874 }
5875
4c476991
JB		 5876 if (!rdev->ops->join_ibss)
5877 return -EOPNOTSUPP;
04a773ad 5878
4c476991
JB		 5879 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5880 return -EOPNOTSUPP;
04a773ad 5881
79c97e97 5882 wiphy = &rdev->wiphy;
04a773ad 5883
39193498 5884 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5885 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5886
5887 if (!is_valid_ether_addr(ibss.bssid))
5888 return -EINVAL;
5889 }
04a773ad
JB		 5890 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5891 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5892
5893 if (info->attrs[NL80211_ATTR_IE]) {
5894 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5895 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5896 }
5897
683b6d3b
JB		 5898 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5899 if (err)
5900 return err;
04a773ad 5901
683b6d3b 5902 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
54858ee5
AS		 5903 return -EINVAL;
5904
db9c64cf
JB		 5905 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5906 return -EINVAL;
5907 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5908 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
c04d6150 5909 return -EINVAL;
db9c64cf 5910
04a773ad 5911 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5912 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5913
fbd2c8dc
TP		 5914 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5915 u8 *rates =
5916 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5917 int n_rates =
5918 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5919 struct ieee80211_supported_band *sband =
683b6d3b 5920 wiphy->bands[ibss.chandef.chan->band];
fbd2c8dc 5921
34850ab2
JB		 5922 err = ieee80211_get_ratemask(sband, rates, n_rates,
5923 &ibss.basic_rates);
5924 if (err)
5925 return err;
fbd2c8dc 5926 }
dd5b4cc7
FF		 5927
5928 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5929 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5930 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5931 return -EINVAL;
fbd2c8dc 5932
4c476991 5933 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
de7044ee
SM		 5934 bool no_ht = false;
5935
4c476991 5936 connkeys = nl80211_parse_connkeys(rdev,
de7044ee
SM		 5937 info->attrs[NL80211_ATTR_KEYS],
5938 &no_ht);
4c476991
JB		 5939 if (IS_ERR(connkeys))
5940 return PTR_ERR(connkeys);
de7044ee 5941
3d9d1d66
JB		 5942 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5943 no_ht) {
de7044ee
SM		 5944 kfree(connkeys);
5945 return -EINVAL;
5946 }
4c476991 5947 }
04a773ad 5948
267335d6
AQ		 5949 ibss.control_port =
5950 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5951
4c476991 5952 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5953 if (err)
5954 kfree(connkeys);
04a773ad
JB		 5955 return err;
5956}
5957
5958static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5959{
4c476991
JB		 5960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5961 struct net_device *dev = info->user_ptr[1];
04a773ad 5962
4c476991
JB		 5963 if (!rdev->ops->leave_ibss)
5964 return -EOPNOTSUPP;
04a773ad 5965
4c476991
JB		 5966 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5967 return -EOPNOTSUPP;
04a773ad 5968
4c476991 5969 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5970}
5971
f4e583c8
AQ		 5972static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5973{
5974 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5975 struct net_device *dev = info->user_ptr[1];
5976 int mcast_rate[IEEE80211_NUM_BANDS];
5977 u32 nla_rate;
5978 int err;
5979
5980 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5981 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5982 return -EOPNOTSUPP;
5983
5984 if (!rdev->ops->set_mcast_rate)
5985 return -EOPNOTSUPP;
5986
5987 memset(mcast_rate, 0, sizeof(mcast_rate));
5988
5989 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5990 return -EINVAL;
5991
5992 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5993 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5994 return -EINVAL;
5995
5996 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5997
5998 return err;
5999}
6000
6001
aff89a9b
JB		 6002#ifdef CONFIG_NL80211_TESTMODE
6003static struct genl_multicast_group nl80211_testmode_mcgrp = {
6004 .name = "testmode",
6005};
6006
6007static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6008{
4c476991 6009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 6010 int err;
6011
6012 if (!info->attrs[NL80211_ATTR_TESTDATA])
6013 return -EINVAL;
6014
aff89a9b
JB		 6015 err = -EOPNOTSUPP;
6016 if (rdev->ops->testmode_cmd) {
6017 rdev->testmode_info = info;
e35e4d28 6018 err = rdev_testmode_cmd(rdev,
aff89a9b
JB		 6019 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6020 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6021 rdev->testmode_info = NULL;
6022 }
6023
aff89a9b
JB		 6024 return err;
6025}
6026
71063f0e
WYG		 6027static int nl80211_testmode_dump(struct sk_buff *skb,
6028 struct netlink_callback *cb)
6029{
00918d33 6030 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 6031 int err;
6032 long phy_idx;
6033 void *data = NULL;
6034 int data_len = 0;
6035
6036 if (cb->args[0]) {
6037 /*
6038 * 0 is a valid index, but not valid for args[0],
6039 * so we need to offset by 1.
6040 */
6041 phy_idx = cb->args[0] - 1;
6042 } else {
6043 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6044 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6045 nl80211_policy);
6046 if (err)
6047 return err;
00918d33 6048
2bd7e35d
JB		 6049 mutex_lock(&cfg80211_mutex);
6050 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6051 nl80211_fam.attrbuf);
6052 if (IS_ERR(rdev)) {
6053 mutex_unlock(&cfg80211_mutex);
6054 return PTR_ERR(rdev);
00918d33 6055 }
2bd7e35d
JB		 6056 phy_idx = rdev->wiphy_idx;
6057 rdev = NULL;
6058 mutex_unlock(&cfg80211_mutex);
6059
71063f0e
WYG		 6060 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6061 cb->args[1] =
6062 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6063 }
6064
6065 if (cb->args[1]) {
6066 data = nla_data((void *)cb->args[1]);
6067 data_len = nla_len((void *)cb->args[1]);
6068 }
6069
6070 mutex_lock(&cfg80211_mutex);
00918d33
JB		 6071 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6072 if (!rdev) {
71063f0e
WYG		 6073 mutex_unlock(&cfg80211_mutex);
6074 return -ENOENT;
6075 }
00918d33 6076 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 6077 mutex_unlock(&cfg80211_mutex);
6078
00918d33 6079 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 6080 err = -EOPNOTSUPP;
6081 goto out_err;
6082 }
6083
6084 while (1) {
15e47304 6085 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
71063f0e
WYG		 6086 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6087 NL80211_CMD_TESTMODE);
6088 struct nlattr *tmdata;
6089
9360ffd1 6090 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 6091 genlmsg_cancel(skb, hdr);
6092 break;
6093 }
6094
6095 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6096 if (!tmdata) {
6097 genlmsg_cancel(skb, hdr);
6098 break;
6099 }
e35e4d28 6100 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
71063f0e
WYG		 6101 nla_nest_end(skb, tmdata);
6102
6103 if (err == -ENOBUFS || err == -ENOENT) {
6104 genlmsg_cancel(skb, hdr);
6105 break;
6106 } else if (err) {
6107 genlmsg_cancel(skb, hdr);
6108 goto out_err;
6109 }
6110
6111 genlmsg_end(skb, hdr);
6112 }
6113
6114 err = skb->len;
6115 /* see above */
6116 cb->args[0] = phy_idx + 1;
6117 out_err:
00918d33 6118 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 6119 return err;
6120}
6121
aff89a9b
JB		 6122static struct sk_buff *
6123__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
15e47304 6124 int approxlen, u32 portid, u32 seq, gfp_t gfp)
aff89a9b
JB		 6125{
6126 struct sk_buff *skb;
6127 void *hdr;
6128 struct nlattr *data;
6129
6130 skb = nlmsg_new(approxlen + 100, gfp);
6131 if (!skb)
6132 return NULL;
6133
15e47304 6134 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
aff89a9b
JB		 6135 if (!hdr) {
6136 kfree_skb(skb);
6137 return NULL;
6138 }
6139
9360ffd1
DM		 6140 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6141 goto nla_put_failure;
aff89a9b
JB		 6142 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6143
6144 ((void **)skb->cb)[0] = rdev;
6145 ((void **)skb->cb)[1] = hdr;
6146 ((void **)skb->cb)[2] = data;
6147
6148 return skb;
6149
6150 nla_put_failure:
6151 kfree_skb(skb);
6152 return NULL;
6153}
6154
6155struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6156 int approxlen)
6157{
6158 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6159
6160 if (WARN_ON(!rdev->testmode_info))
6161 return NULL;
6162
6163 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
15e47304 6164 rdev->testmode_info->snd_portid,
aff89a9b
JB		 6165 rdev->testmode_info->snd_seq,
6166 GFP_KERNEL);
6167}
6168EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6169
6170int cfg80211_testmode_reply(struct sk_buff *skb)
6171{
6172 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6173 void *hdr = ((void **)skb->cb)[1];
6174 struct nlattr *data = ((void **)skb->cb)[2];
6175
6176 if (WARN_ON(!rdev->testmode_info)) {
6177 kfree_skb(skb);
6178 return -EINVAL;
6179 }
6180
6181 nla_nest_end(skb, data);
6182 genlmsg_end(skb, hdr);
6183 return genlmsg_reply(skb, rdev->testmode_info);
6184}
6185EXPORT_SYMBOL(cfg80211_testmode_reply);
6186
6187struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6188 int approxlen, gfp_t gfp)
6189{
6190 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6191
6192 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6193}
6194EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6195
6196void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6197{
6198 void *hdr = ((void **)skb->cb)[1];
6199 struct nlattr *data = ((void **)skb->cb)[2];
6200
6201 nla_nest_end(skb, data);
6202 genlmsg_end(skb, hdr);
6203 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6204}
6205EXPORT_SYMBOL(cfg80211_testmode_event);
6206#endif
6207
b23aa676
SO		 6208static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6209{
4c476991
JB		 6210 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6211 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6212 struct cfg80211_connect_params connect;
6213 struct wiphy *wiphy;
fffd0934 6214 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 6215 int err;
6216
6217 memset(&connect, 0, sizeof(connect));
6218
6219 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6220 return -EINVAL;
6221
6222 if (!info->attrs[NL80211_ATTR_SSID] ||
6223 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6224 return -EINVAL;
6225
6226 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6227 connect.auth_type =
6228 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
e39e5b5e
JM		 6229 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6230 NL80211_CMD_CONNECT))
b23aa676
SO		 6231 return -EINVAL;
6232 } else
6233 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6234
6235 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6236
c0692b8f 6237 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 6238 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 6239 if (err)
6240 return err;
b23aa676 6241
074ac8df 6242 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6243 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6244 return -EOPNOTSUPP;
b23aa676 6245
79c97e97 6246 wiphy = &rdev->wiphy;
b23aa676 6247
4486ea98
BS		 6248 connect.bg_scan_period = -1;
6249 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6250 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6251 connect.bg_scan_period =
6252 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6253 }
6254
b23aa676
SO		 6255 if (info->attrs[NL80211_ATTR_MAC])
6256 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6257 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6258 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6259
6260 if (info->attrs[NL80211_ATTR_IE]) {
6261 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6262 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6263 }
6264
cee00a95
JM		 6265 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6266 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6267 if (connect.mfp != NL80211_MFP_REQUIRED &&
6268 connect.mfp != NL80211_MFP_NO)
6269 return -EINVAL;
6270 } else {
6271 connect.mfp = NL80211_MFP_NO;
6272 }
6273
b23aa676
SO		 6274 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6275 connect.channel =
6276 ieee80211_get_channel(wiphy,
6277 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6278 if (!connect.channel ||
4c476991
JB		 6279 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6280 return -EINVAL;
b23aa676
SO		 6281 }
6282
fffd0934
JB		 6283 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6284 connkeys = nl80211_parse_connkeys(rdev,
de7044ee 6285 info->attrs[NL80211_ATTR_KEYS], NULL);
4c476991
JB		 6286 if (IS_ERR(connkeys))
6287 return PTR_ERR(connkeys);
fffd0934
JB		 6288 }
6289
7e7c8926
BG		 6290 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6291 connect.flags |= ASSOC_REQ_DISABLE_HT;
6292
6293 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6294 memcpy(&connect.ht_capa_mask,
6295 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6296 sizeof(connect.ht_capa_mask));
6297
6298 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
b4e4f47e
WY		 6299 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6300 kfree(connkeys);
7e7c8926 6301 return -EINVAL;
b4e4f47e 6302 }
7e7c8926
BG		 6303 memcpy(&connect.ht_capa,
6304 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6305 sizeof(connect.ht_capa));
6306 }
6307
fffd0934 6308 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 6309 if (err)
6310 kfree(connkeys);
b23aa676
SO		 6311 return err;
6312}
6313
6314static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6315{
4c476991
JB		 6316 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6317 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 6318 u16 reason;
6319
6320 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6321 reason = WLAN_REASON_DEAUTH_LEAVING;
6322 else
6323 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6324
6325 if (reason == 0)
6326 return -EINVAL;
6327
074ac8df 6328 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6329 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6330 return -EOPNOTSUPP;
b23aa676 6331
4c476991 6332 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 6333}
6334
463d0183
JB		 6335static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6336{
4c476991 6337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 6338 struct net *net;
6339 int err;
6340 u32 pid;
6341
6342 if (!info->attrs[NL80211_ATTR_PID])
6343 return -EINVAL;
6344
6345 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6346
463d0183 6347 net = get_net_ns_by_pid(pid);
4c476991
JB		 6348 if (IS_ERR(net))
6349 return PTR_ERR(net);
463d0183
JB		 6350
6351 err = 0;
6352
6353 /* check if anything to do */
4c476991
JB		 6354 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6355 err = cfg80211_switch_netns(rdev, net);
463d0183 6356
463d0183 6357 put_net(net);
463d0183
JB		 6358 return err;
6359}
6360
67fbb16b
SO		 6361static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6362{
4c476991 6363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 6364 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6365 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 6366 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 6367 struct cfg80211_pmksa pmksa;
6368
6369 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6370
6371 if (!info->attrs[NL80211_ATTR_MAC])
6372 return -EINVAL;
6373
6374 if (!info->attrs[NL80211_ATTR_PMKID])
6375 return -EINVAL;
6376
67fbb16b
SO		 6377 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6378 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6379
074ac8df 6380 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6381 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6382 return -EOPNOTSUPP;
67fbb16b
SO		 6383
6384 switch (info->genlhdr->cmd) {
6385 case NL80211_CMD_SET_PMKSA:
6386 rdev_ops = rdev->ops->set_pmksa;
6387 break;
6388 case NL80211_CMD_DEL_PMKSA:
6389 rdev_ops = rdev->ops->del_pmksa;
6390 break;
6391 default:
6392 WARN_ON(1);
6393 break;
6394 }
6395
4c476991
JB		 6396 if (!rdev_ops)
6397 return -EOPNOTSUPP;
67fbb16b 6398
4c476991 6399 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 6400}
6401
6402static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6403{
4c476991
JB		 6404 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6405 struct net_device *dev = info->user_ptr[1];
67fbb16b 6406
074ac8df 6407 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6408 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6409 return -EOPNOTSUPP;
67fbb16b 6410
4c476991
JB		 6411 if (!rdev->ops->flush_pmksa)
6412 return -EOPNOTSUPP;
67fbb16b 6413
e35e4d28 6414 return rdev_flush_pmksa(rdev, dev);
67fbb16b
SO		 6415}
6416
109086ce
AN		 6417static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6418{
6419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6420 struct net_device *dev = info->user_ptr[1];
6421 u8 action_code, dialog_token;
6422 u16 status_code;
6423 u8 *peer;
6424
6425 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6426 !rdev->ops->tdls_mgmt)
6427 return -EOPNOTSUPP;
6428
6429 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6430 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6431 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6432 !info->attrs[NL80211_ATTR_IE] ||
6433 !info->attrs[NL80211_ATTR_MAC])
6434 return -EINVAL;
6435
6436 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6437 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6438 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6439 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6440
e35e4d28
HG		 6441 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6442 dialog_token, status_code,
6443 nla_data(info->attrs[NL80211_ATTR_IE]),
6444 nla_len(info->attrs[NL80211_ATTR_IE]));
109086ce
AN		 6445}
6446
6447static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6448{
6449 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6450 struct net_device *dev = info->user_ptr[1];
6451 enum nl80211_tdls_operation operation;
6452 u8 *peer;
6453
6454 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6455 !rdev->ops->tdls_oper)
6456 return -EOPNOTSUPP;
6457
6458 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6459 !info->attrs[NL80211_ATTR_MAC])
6460 return -EINVAL;
6461
6462 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6463 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6464
e35e4d28 6465 return rdev_tdls_oper(rdev, dev, peer, operation);
109086ce
AN		 6466}
6467
9588bbd5
JM		 6468static int nl80211_remain_on_channel(struct sk_buff *skb,
6469 struct genl_info *info)
6470{
4c476991 6471 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6472 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6473 struct cfg80211_chan_def chandef;
9588bbd5
JM		 6474 struct sk_buff *msg;
6475 void *hdr;
6476 u64 cookie;
683b6d3b 6477 u32 duration;
9588bbd5
JM		 6478 int err;
6479
6480 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6481 !info->attrs[NL80211_ATTR_DURATION])
6482 return -EINVAL;
6483
6484 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6485
ebf348fc
JB		 6486 if (!rdev->ops->remain_on_channel ||
6487 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6488 return -EOPNOTSUPP;
6489
9588bbd5 6490 /*
ebf348fc
JB		 6491 * We should be on that channel for at least a minimum amount of
6492 * time (10ms) but no longer than the driver supports.
9588bbd5 6493 */
ebf348fc 6494 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 6495 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 6496 return -EINVAL;
6497
683b6d3b
JB		 6498 err = nl80211_parse_chandef(rdev, info, &chandef);
6499 if (err)
6500 return err;
9588bbd5
JM		 6501
6502 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6503 if (!msg)
6504 return -ENOMEM;
9588bbd5 6505
15e47304 6506 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9588bbd5
JM		 6507 NL80211_CMD_REMAIN_ON_CHANNEL);
6508
6509 if (IS_ERR(hdr)) {
6510 err = PTR_ERR(hdr);
6511 goto free_msg;
6512 }
6513
683b6d3b
JB		 6514 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6515 duration, &cookie);
9588bbd5
JM		 6516
6517 if (err)
6518 goto free_msg;
6519
9360ffd1
DM		 6520 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6521 goto nla_put_failure;
9588bbd5
JM		 6522
6523 genlmsg_end(msg, hdr);
4c476991
JB		 6524
6525 return genlmsg_reply(msg, info);
9588bbd5
JM		 6526
6527 nla_put_failure:
6528 err = -ENOBUFS;
6529 free_msg:
6530 nlmsg_free(msg);
9588bbd5
JM		 6531 return err;
6532}
6533
6534static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6535 struct genl_info *info)
6536{
4c476991 6537 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6538 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 6539 u64 cookie;
9588bbd5
JM		 6540
6541 if (!info->attrs[NL80211_ATTR_COOKIE])
6542 return -EINVAL;
6543
4c476991
JB		 6544 if (!rdev->ops->cancel_remain_on_channel)
6545 return -EOPNOTSUPP;
9588bbd5 6546
9588bbd5
JM		 6547 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6548
e35e4d28 6549 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
9588bbd5
JM		 6550}
6551
13ae75b1
JM		 6552static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6553 u8 *rates, u8 rates_len)
6554{
6555 u8 i;
6556 u32 mask = 0;
6557
6558 for (i = 0; i < rates_len; i++) {
6559 int rate = (rates[i] & 0x7f) * 5;
6560 int ridx;
6561 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6562 struct ieee80211_rate *srate =
6563 &sband->bitrates[ridx];
6564 if (rate == srate->bitrate) {
6565 mask |= 1 << ridx;
6566 break;
6567 }
6568 }
6569 if (ridx == sband->n_bitrates)
6570 return 0; /* rate not found */
6571 }
6572
6573 return mask;
6574}
6575
24db78c0
SW		 6576static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6577 u8 *rates, u8 rates_len,
6578 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6579{
6580 u8 i;
6581
6582 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6583
6584 for (i = 0; i < rates_len; i++) {
6585 int ridx, rbit;
6586
6587 ridx = rates[i] / 8;
6588 rbit = BIT(rates[i] % 8);
6589
6590 /* check validity */
910570b5 6591 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 6592 return false;
6593
6594 /* check availability */
6595 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6596 mcs[ridx] |= rbit;
6597 else
6598 return false;
6599 }
6600
6601 return true;
6602}
6603
b54452b0 6604static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 6605 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6606 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 6607 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6608 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 6609};
6610
6611static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6612 struct genl_info *info)
6613{
6614 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 6615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 6616 struct cfg80211_bitrate_mask mask;
4c476991
JB		 6617 int rem, i;
6618 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 6619 struct nlattr *tx_rates;
6620 struct ieee80211_supported_band *sband;
6621
6622 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6623 return -EINVAL;
6624
4c476991
JB		 6625 if (!rdev->ops->set_bitrate_mask)
6626 return -EOPNOTSUPP;
13ae75b1
JM		 6627
6628 memset(&mask, 0, sizeof(mask));
6629 /* Default to all rates enabled */
6630 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6631 sband = rdev->wiphy.bands[i];
6632 mask.control[i].legacy =
6633 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 6634 if (sband)
6635 memcpy(mask.control[i].mcs,
6636 sband->ht_cap.mcs.rx_mask,
6637 sizeof(mask.control[i].mcs));
6638 else
6639 memset(mask.control[i].mcs, 0,
6640 sizeof(mask.control[i].mcs));
13ae75b1
JM		 6641 }
6642
6643 /*
6644 * The nested attribute uses enum nl80211_band as the index. This maps
6645 * directly to the enum ieee80211_band values used in cfg80211.
6646 */
24db78c0 6647 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 6648 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6649 {
6650 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 6651 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6652 return -EINVAL;
13ae75b1 6653 sband = rdev->wiphy.bands[band];
4c476991
JB		 6654 if (sband == NULL)
6655 return -EINVAL;
13ae75b1
JM		 6656 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6657 nla_len(tx_rates), nl80211_txattr_policy);
6658 if (tb[NL80211_TXRATE_LEGACY]) {
6659 mask.control[band].legacy = rateset_to_mask(
6660 sband,
6661 nla_data(tb[NL80211_TXRATE_LEGACY]),
6662 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6663 if ((mask.control[band].legacy == 0) &&
6664 nla_len(tb[NL80211_TXRATE_LEGACY]))
6665 return -EINVAL;
24db78c0
SW		 6666 }
6667 if (tb[NL80211_TXRATE_MCS]) {
6668 if (!ht_rateset_to_mask(
6669 sband,
6670 nla_data(tb[NL80211_TXRATE_MCS]),
6671 nla_len(tb[NL80211_TXRATE_MCS]),
6672 mask.control[band].mcs))
6673 return -EINVAL;
6674 }
6675
6676 if (mask.control[band].legacy == 0) {
6677 /* don't allow empty legacy rates if HT
6678 * is not even supported. */
6679 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6680 return -EINVAL;
6681
6682 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6683 if (mask.control[band].mcs[i])
6684 break;
6685
6686 /* legacy and mcs rates may not be both empty */
6687 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6688 return -EINVAL;
13ae75b1
JM		 6689 }
6690 }
6691
e35e4d28 6692 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
13ae75b1
JM		 6693}
6694
2e161f78 6695static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6696{
4c476991 6697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6698 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6699 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6700
6701 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6702 return -EINVAL;
6703
2e161f78
JB		 6704 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6705 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6706
71bbc994
JB		 6707 switch (wdev->iftype) {
6708 case NL80211_IFTYPE_STATION:
6709 case NL80211_IFTYPE_ADHOC:
6710 case NL80211_IFTYPE_P2P_CLIENT:
6711 case NL80211_IFTYPE_AP:
6712 case NL80211_IFTYPE_AP_VLAN:
6713 case NL80211_IFTYPE_MESH_POINT:
6714 case NL80211_IFTYPE_P2P_GO:
98104fde 6715 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6716 break;
6717 default:
4c476991 6718 return -EOPNOTSUPP;
71bbc994 6719 }
026331c4
JM		 6720
6721 /* not much point in registering if we can't reply */
4c476991
JB		 6722 if (!rdev->ops->mgmt_tx)
6723 return -EOPNOTSUPP;
026331c4 6724
15e47304 6725 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
026331c4
JM		 6726 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6727 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6728}
6729
2e161f78 6730static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6731{
4c476991 6732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6733 struct wireless_dev *wdev = info->user_ptr[1];
683b6d3b 6734 struct cfg80211_chan_def chandef;
026331c4 6735 int err;
d64d373f 6736 void *hdr = NULL;
026331c4 6737 u64 cookie;
e247bd90 6738 struct sk_buff *msg = NULL;
f7ca38df 6739 unsigned int wait = 0;
e247bd90
JB		 6740 bool offchan, no_cck, dont_wait_for_ack;
6741
6742 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4 6743
683b6d3b 6744 if (!info->attrs[NL80211_ATTR_FRAME])
026331c4
JM		 6745 return -EINVAL;
6746
4c476991
JB		 6747 if (!rdev->ops->mgmt_tx)
6748 return -EOPNOTSUPP;
026331c4 6749
71bbc994
JB		 6750 switch (wdev->iftype) {
6751 case NL80211_IFTYPE_STATION:
6752 case NL80211_IFTYPE_ADHOC:
6753 case NL80211_IFTYPE_P2P_CLIENT:
6754 case NL80211_IFTYPE_AP:
6755 case NL80211_IFTYPE_AP_VLAN:
6756 case NL80211_IFTYPE_MESH_POINT:
6757 case NL80211_IFTYPE_P2P_GO:
98104fde 6758 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6759 break;
6760 default:
4c476991 6761 return -EOPNOTSUPP;
71bbc994 6762 }
026331c4 6763
f7ca38df 6764 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6765 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6766 return -EINVAL;
6767 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6768
6769 /*
6770 * We should wait on the channel for at least a minimum amount
6771 * of time (10ms) but no longer than the driver supports.
6772 */
6773 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6774 wait > rdev->wiphy.max_remain_on_channel_duration)
6775 return -EINVAL;
6776
f7ca38df
JB		 6777 }
6778
f7ca38df
JB		 6779 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6780
7c4ef712
JB		 6781 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6782 return -EINVAL;
6783
e9f935e3
RM		 6784 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6785
683b6d3b
JB		 6786 err = nl80211_parse_chandef(rdev, info, &chandef);
6787 if (err)
6788 return err;
026331c4 6789
e247bd90
JB		 6790 if (!dont_wait_for_ack) {
6791 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6792 if (!msg)
6793 return -ENOMEM;
026331c4 6794
15e47304 6795 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
e247bd90 6796 NL80211_CMD_FRAME);
026331c4 6797
e247bd90
JB		 6798 if (IS_ERR(hdr)) {
6799 err = PTR_ERR(hdr);
6800 goto free_msg;
6801 }
026331c4 6802 }
e247bd90 6803
683b6d3b 6804 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
2e161f78
JB		 6805 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6806 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6807 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6808 if (err)
6809 goto free_msg;
6810
e247bd90 6811 if (msg) {
9360ffd1
DM		 6812 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6813 goto nla_put_failure;
026331c4 6814
e247bd90
JB		 6815 genlmsg_end(msg, hdr);
6816 return genlmsg_reply(msg, info);
6817 }
6818
6819 return 0;
026331c4
JM		 6820
6821 nla_put_failure:
6822 err = -ENOBUFS;
6823 free_msg:
6824 nlmsg_free(msg);
026331c4
JM		 6825 return err;
6826}
6827
f7ca38df
JB		 6828static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6829{
6830 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6831 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6832 u64 cookie;
6833
6834 if (!info->attrs[NL80211_ATTR_COOKIE])
6835 return -EINVAL;
6836
6837 if (!rdev->ops->mgmt_tx_cancel_wait)
6838 return -EOPNOTSUPP;
6839
71bbc994
JB		 6840 switch (wdev->iftype) {
6841 case NL80211_IFTYPE_STATION:
6842 case NL80211_IFTYPE_ADHOC:
6843 case NL80211_IFTYPE_P2P_CLIENT:
6844 case NL80211_IFTYPE_AP:
6845 case NL80211_IFTYPE_AP_VLAN:
6846 case NL80211_IFTYPE_P2P_GO:
98104fde 6847 case NL80211_IFTYPE_P2P_DEVICE:
71bbc994
JB		 6848 break;
6849 default:
f7ca38df 6850 return -EOPNOTSUPP;
71bbc994 6851 }
f7ca38df
JB		 6852
6853 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6854
e35e4d28 6855 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
f7ca38df
JB		 6856}
6857
ffb9eb3d
KV		 6858static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6859{
4c476991 6860 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6861 struct wireless_dev *wdev;
4c476991 6862 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6863 u8 ps_state;
6864 bool state;
6865 int err;
6866
4c476991
JB		 6867 if (!info->attrs[NL80211_ATTR_PS_STATE])
6868 return -EINVAL;
ffb9eb3d
KV		 6869
6870 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6871
4c476991
JB		 6872 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6873 return -EINVAL;
ffb9eb3d
KV		 6874
6875 wdev = dev->ieee80211_ptr;
6876
4c476991
JB		 6877 if (!rdev->ops->set_power_mgmt)
6878 return -EOPNOTSUPP;
ffb9eb3d
KV		 6879
6880 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6881
6882 if (state == wdev->ps)
4c476991 6883 return 0;
ffb9eb3d 6884
e35e4d28 6885 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
4c476991
JB		 6886 if (!err)
6887 wdev->ps = state;
ffb9eb3d
KV		 6888 return err;
6889}
6890
6891static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6892{
4c476991 6893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6894 enum nl80211_ps_state ps_state;
6895 struct wireless_dev *wdev;
4c476991 6896 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6897 struct sk_buff *msg;
6898 void *hdr;
6899 int err;
6900
ffb9eb3d
KV		 6901 wdev = dev->ieee80211_ptr;
6902
4c476991
JB		 6903 if (!rdev->ops->set_power_mgmt)
6904 return -EOPNOTSUPP;
ffb9eb3d
KV		 6905
6906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6907 if (!msg)
6908 return -ENOMEM;
ffb9eb3d 6909
15e47304 6910 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ffb9eb3d
KV		 6911 NL80211_CMD_GET_POWER_SAVE);
6912 if (!hdr) {
4c476991 6913 err = -ENOBUFS;
ffb9eb3d
KV		 6914 goto free_msg;
6915 }
6916
6917 if (wdev->ps)
6918 ps_state = NL80211_PS_ENABLED;
6919 else
6920 ps_state = NL80211_PS_DISABLED;
6921
9360ffd1
DM		 6922 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6923 goto nla_put_failure;
ffb9eb3d
KV		 6924
6925 genlmsg_end(msg, hdr);
4c476991 6926 return genlmsg_reply(msg, info);
ffb9eb3d 6927
4c476991 6928 nla_put_failure:
ffb9eb3d 6929 err = -ENOBUFS;
4c476991 6930 free_msg:
ffb9eb3d 6931 nlmsg_free(msg);
ffb9eb3d
KV		 6932 return err;
6933}
6934
d6dc1a38
JO		 6935static struct nla_policy
6936nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6937 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6938 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6939 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6940 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6941 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6942 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6943};
6944
84f10708 6945static int nl80211_set_cqm_txe(struct genl_info *info,
d9d8b019 6946 u32 rate, u32 pkts, u32 intvl)
84f10708
TP		 6947{
6948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6949 struct wireless_dev *wdev;
6950 struct net_device *dev = info->user_ptr[1];
6951
d9d8b019 6952 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
84f10708
TP		 6953 return -EINVAL;
6954
6955 wdev = dev->ieee80211_ptr;
6956
6957 if (!rdev->ops->set_cqm_txe_config)
6958 return -EOPNOTSUPP;
6959
6960 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6961 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6962 return -EOPNOTSUPP;
6963
e35e4d28 6964 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
84f10708
TP		 6965}
6966
d6dc1a38
JO		 6967static int nl80211_set_cqm_rssi(struct genl_info *info,
6968 s32 threshold, u32 hysteresis)
6969{
4c476991 6970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6971 struct wireless_dev *wdev;
4c476991 6972 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6973
6974 if (threshold > 0)
6975 return -EINVAL;
6976
d6dc1a38
JO		 6977 wdev = dev->ieee80211_ptr;
6978
4c476991
JB		 6979 if (!rdev->ops->set_cqm_rssi_config)
6980 return -EOPNOTSUPP;
d6dc1a38 6981
074ac8df 6982 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6983 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6984 return -EOPNOTSUPP;
d6dc1a38 6985
e35e4d28 6986 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
d6dc1a38
JO		 6987}
6988
6989static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6990{
6991 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6992 struct nlattr *cqm;
6993 int err;
6994
6995 cqm = info->attrs[NL80211_ATTR_CQM];
6996 if (!cqm) {
6997 err = -EINVAL;
6998 goto out;
6999 }
7000
7001 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7002 nl80211_attr_cqm_policy);
7003 if (err)
7004 goto out;
7005
7006 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7007 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7008 s32 threshold;
7009 u32 hysteresis;
7010 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7011 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7012 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 7013 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7014 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7015 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7016 u32 rate, pkts, intvl;
7017 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7018 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7019 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7020 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 7021 } else
7022 err = -EINVAL;
7023
7024out:
7025 return err;
7026}
7027
29cbe68c
JB		 7028static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7029{
7030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7031 struct net_device *dev = info->user_ptr[1];
7032 struct mesh_config cfg;
c80d545d 7033 struct mesh_setup setup;
29cbe68c
JB		 7034 int err;
7035
7036 /* start with default */
7037 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 7038 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 7039
24bdd9f4 7040 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 7041 /* and parse parameters if given */
24bdd9f4 7042 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 7043 if (err)
7044 return err;
7045 }
7046
7047 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7048 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7049 return -EINVAL;
7050
c80d545d
JC		 7051 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7052 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7053
4bb62344
CYY		 7054 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7055 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7056 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7057 return -EINVAL;
7058
9bdbf04d
MP		 7059 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7060 setup.beacon_interval =
7061 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7062 if (setup.beacon_interval < 10 ||
7063 setup.beacon_interval > 10000)
7064 return -EINVAL;
7065 }
7066
7067 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7068 setup.dtim_period =
7069 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7070 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7071 return -EINVAL;
7072 }
7073
c80d545d
JC		 7074 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7075 /* parse additional setup parameters if given */
7076 err = nl80211_parse_mesh_setup(info, &setup);
7077 if (err)
7078 return err;
7079 }
7080
cc1d2806 7081 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
683b6d3b
JB		 7082 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7083 if (err)
7084 return err;
cc1d2806
JB		 7085 } else {
7086 /* cfg80211_join_mesh() will sort it out */
683b6d3b 7087 setup.chandef.chan = NULL;
cc1d2806
JB		 7088 }
7089
c80d545d 7090 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 7091}
7092
7093static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7094{
7095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7096 struct net_device *dev = info->user_ptr[1];
7097
7098 return cfg80211_leave_mesh(rdev, dev);
7099}
7100
dfb89c56 7101#ifdef CONFIG_PM
bb92d199
AK		 7102static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7103 struct cfg80211_registered_device *rdev)
7104{
7105 struct nlattr *nl_pats, *nl_pat;
7106 int i, pat_len;
7107
7108 if (!rdev->wowlan->n_patterns)
7109 return 0;
7110
7111 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7112 if (!nl_pats)
7113 return -ENOBUFS;
7114
7115 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7116 nl_pat = nla_nest_start(msg, i + 1);
7117 if (!nl_pat)
7118 return -ENOBUFS;
7119 pat_len = rdev->wowlan->patterns[i].pattern_len;
7120 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7121 DIV_ROUND_UP(pat_len, 8),
7122 rdev->wowlan->patterns[i].mask) ||
7123 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7124 pat_len, rdev->wowlan->patterns[i].pattern) ||
7125 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7126 rdev->wowlan->patterns[i].pkt_offset))
7127 return -ENOBUFS;
7128 nla_nest_end(msg, nl_pat);
7129 }
7130 nla_nest_end(msg, nl_pats);
7131
7132 return 0;
7133}
7134
2a0e047e
JB		 7135static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7136 struct cfg80211_wowlan_tcp *tcp)
7137{
7138 struct nlattr *nl_tcp;
7139
7140 if (!tcp)
7141 return 0;
7142
7143 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7144 if (!nl_tcp)
7145 return -ENOBUFS;
7146
7147 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7148 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7149 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7150 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7151 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7152 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7153 tcp->payload_len, tcp->payload) ||
7154 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7155 tcp->data_interval) ||
7156 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7157 tcp->wake_len, tcp->wake_data) ||
7158 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7159 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7160 return -ENOBUFS;
7161
7162 if (tcp->payload_seq.len &&
7163 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7164 sizeof(tcp->payload_seq), &tcp->payload_seq))
7165 return -ENOBUFS;
7166
7167 if (tcp->payload_tok.len &&
7168 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7169 sizeof(tcp->payload_tok) + tcp->tokens_size,
7170 &tcp->payload_tok))
7171 return -ENOBUFS;
7172
7173 return 0;
7174}
7175
ff1b6e69
JB		 7176static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7177{
7178 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7179 struct sk_buff *msg;
7180 void *hdr;
2a0e047e 7181 u32 size = NLMSG_DEFAULT_SIZE;
ff1b6e69 7182
2a0e047e
JB		 7183 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7184 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7185 return -EOPNOTSUPP;
7186
2a0e047e
JB		 7187 if (rdev->wowlan && rdev->wowlan->tcp) {
7188 /* adjust size to have room for all the data */
7189 size += rdev->wowlan->tcp->tokens_size +
7190 rdev->wowlan->tcp->payload_len +
7191 rdev->wowlan->tcp->wake_len +
7192 rdev->wowlan->tcp->wake_len / 8;
7193 }
7194
7195 msg = nlmsg_new(size, GFP_KERNEL);
ff1b6e69
JB		 7196 if (!msg)
7197 return -ENOMEM;
7198
15e47304 7199 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
ff1b6e69
JB		 7200 NL80211_CMD_GET_WOWLAN);
7201 if (!hdr)
7202 goto nla_put_failure;
7203
7204 if (rdev->wowlan) {
7205 struct nlattr *nl_wowlan;
7206
7207 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7208 if (!nl_wowlan)
7209 goto nla_put_failure;
7210
9360ffd1
DM		 7211 if ((rdev->wowlan->any &&
7212 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7213 (rdev->wowlan->disconnect &&
7214 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7215 (rdev->wowlan->magic_pkt &&
7216 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7217 (rdev->wowlan->gtk_rekey_failure &&
7218 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7219 (rdev->wowlan->eap_identity_req &&
7220 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7221 (rdev->wowlan->four_way_handshake &&
7222 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7223 (rdev->wowlan->rfkill_release &&
7224 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7225 goto nla_put_failure;
2a0e047e 7226
bb92d199
AK		 7227 if (nl80211_send_wowlan_patterns(msg, rdev))
7228 goto nla_put_failure;
2a0e047e
JB		 7229
7230 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7231 goto nla_put_failure;
7232
ff1b6e69
JB		 7233 nla_nest_end(msg, nl_wowlan);
7234 }
7235
7236 genlmsg_end(msg, hdr);
7237 return genlmsg_reply(msg, info);
7238
7239nla_put_failure:
7240 nlmsg_free(msg);
7241 return -ENOBUFS;
7242}
7243
2a0e047e
JB		 7244static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7245 struct nlattr *attr,
7246 struct cfg80211_wowlan *trig)
7247{
7248 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7249 struct cfg80211_wowlan_tcp *cfg;
7250 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7251 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7252 u32 size;
7253 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7254 int err, port;
7255
7256 if (!rdev->wiphy.wowlan.tcp)
7257 return -EINVAL;
7258
7259 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7260 nla_data(attr), nla_len(attr),
7261 nl80211_wowlan_tcp_policy);
7262 if (err)
7263 return err;
7264
7265 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7266 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7267 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7268 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7269 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7270 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7271 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7272 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7273 return -EINVAL;
7274
7275 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7276 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7277 return -EINVAL;
7278
7279 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7280 rdev->wiphy.wowlan.tcp->data_interval_max)
7281 return -EINVAL;
7282
7283 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7284 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7285 return -EINVAL;
7286
7287 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7288 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7289 return -EINVAL;
7290
7291 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7292 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7293
7294 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7295 tokens_size = tokln - sizeof(*tok);
7296
7297 if (!tok->len || tokens_size % tok->len)
7298 return -EINVAL;
7299 if (!rdev->wiphy.wowlan.tcp->tok)
7300 return -EINVAL;
7301 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7302 return -EINVAL;
7303 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7304 return -EINVAL;
7305 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7306 return -EINVAL;
7307 if (tok->offset + tok->len > data_size)
7308 return -EINVAL;
7309 }
7310
7311 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7312 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7313 if (!rdev->wiphy.wowlan.tcp->seq)
7314 return -EINVAL;
7315 if (seq->len == 0 || seq->len > 4)
7316 return -EINVAL;
7317 if (seq->len + seq->offset > data_size)
7318 return -EINVAL;
7319 }
7320
7321 size = sizeof(*cfg);
7322 size += data_size;
7323 size += wake_size + wake_mask_size;
7324 size += tokens_size;
7325
7326 cfg = kzalloc(size, GFP_KERNEL);
7327 if (!cfg)
7328 return -ENOMEM;
7329 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7330 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7331 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7332 ETH_ALEN);
7333 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7334 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7335 else
7336 port = 0;
7337#ifdef CONFIG_INET
7338 /* allocate a socket and port for it and use it */
7339 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7340 IPPROTO_TCP, &cfg->sock, 1);
7341 if (err) {
7342 kfree(cfg);
7343 return err;
7344 }
7345 if (inet_csk_get_port(cfg->sock->sk, port)) {
7346 sock_release(cfg->sock);
7347 kfree(cfg);
7348 return -EADDRINUSE;
7349 }
7350 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7351#else
7352 if (!port) {
7353 kfree(cfg);
7354 return -EINVAL;
7355 }
7356 cfg->src_port = port;
7357#endif
7358
7359 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7360 cfg->payload_len = data_size;
7361 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7362 memcpy((void *)cfg->payload,
7363 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7364 data_size);
7365 if (seq)
7366 cfg->payload_seq = *seq;
7367 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7368 cfg->wake_len = wake_size;
7369 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7370 memcpy((void *)cfg->wake_data,
7371 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7372 wake_size);
7373 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7374 data_size + wake_size;
7375 memcpy((void *)cfg->wake_mask,
7376 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7377 wake_mask_size);
7378 if (tok) {
7379 cfg->tokens_size = tokens_size;
7380 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7381 }
7382
7383 trig->tcp = cfg;
7384
7385 return 0;
7386}
7387
ff1b6e69
JB		 7388static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7389{
7390 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7391 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 7392 struct cfg80211_wowlan new_triggers = {};
ae33bd81 7393 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 7394 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7395 int err, i;
6d52563f 7396 bool prev_enabled = rdev->wowlan;
ff1b6e69 7397
2a0e047e
JB		 7398 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7399 !rdev->wiphy.wowlan.tcp)
ff1b6e69
JB		 7400 return -EOPNOTSUPP;
7401
ae33bd81
JB		 7402 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7403 cfg80211_rdev_free_wowlan(rdev);
7404 rdev->wowlan = NULL;
7405 goto set_wakeup;
7406 }
ff1b6e69
JB		 7407
7408 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7409 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7410 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7411 nl80211_wowlan_policy);
7412 if (err)
7413 return err;
7414
7415 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7416 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7417 return -EINVAL;
7418 new_triggers.any = true;
7419 }
7420
7421 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7422 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7423 return -EINVAL;
7424 new_triggers.disconnect = true;
7425 }
7426
7427 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7428 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7429 return -EINVAL;
7430 new_triggers.magic_pkt = true;
7431 }
7432
77dbbb13
JB		 7433 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7434 return -EINVAL;
7435
7436 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7437 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7438 return -EINVAL;
7439 new_triggers.gtk_rekey_failure = true;
7440 }
7441
7442 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7443 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7444 return -EINVAL;
7445 new_triggers.eap_identity_req = true;
7446 }
7447
7448 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7449 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7450 return -EINVAL;
7451 new_triggers.four_way_handshake = true;
7452 }
7453
7454 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7455 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7456 return -EINVAL;
7457 new_triggers.rfkill_release = true;
7458 }
7459
ff1b6e69
JB		 7460 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7461 struct nlattr *pat;
7462 int n_patterns = 0;
bb92d199 7463 int rem, pat_len, mask_len, pkt_offset;
ff1b6e69
JB		 7464 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7465
7466 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7467 rem)
7468 n_patterns++;
7469 if (n_patterns > wowlan->n_patterns)
7470 return -EINVAL;
7471
7472 new_triggers.patterns = kcalloc(n_patterns,
7473 sizeof(new_triggers.patterns[0]),
7474 GFP_KERNEL);
7475 if (!new_triggers.patterns)
7476 return -ENOMEM;
7477
7478 new_triggers.n_patterns = n_patterns;
7479 i = 0;
7480
7481 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7482 rem) {
7483 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7484 nla_data(pat), nla_len(pat), NULL);
7485 err = -EINVAL;
7486 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7487 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7488 goto error;
7489 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7490 mask_len = DIV_ROUND_UP(pat_len, 8);
7491 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7492 mask_len)
7493 goto error;
7494 if (pat_len > wowlan->pattern_max_len ||
7495 pat_len < wowlan->pattern_min_len)
7496 goto error;
7497
bb92d199
AK		 7498 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7499 pkt_offset = 0;
7500 else
7501 pkt_offset = nla_get_u32(
7502 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7503 if (pkt_offset > wowlan->max_pkt_offset)
7504 goto error;
7505 new_triggers.patterns[i].pkt_offset = pkt_offset;
7506
ff1b6e69
JB		 7507 new_triggers.patterns[i].mask =
7508 kmalloc(mask_len + pat_len, GFP_KERNEL);
7509 if (!new_triggers.patterns[i].mask) {
7510 err = -ENOMEM;
7511 goto error;
7512 }
7513 new_triggers.patterns[i].pattern =
7514 new_triggers.patterns[i].mask + mask_len;
7515 memcpy(new_triggers.patterns[i].mask,
7516 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7517 mask_len);
7518 new_triggers.patterns[i].pattern_len = pat_len;
7519 memcpy(new_triggers.patterns[i].pattern,
7520 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7521 pat_len);
7522 i++;
7523 }
7524 }
7525
2a0e047e
JB		 7526 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7527 err = nl80211_parse_wowlan_tcp(
7528 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7529 &new_triggers);
7530 if (err)
7531 goto error;
7532 }
7533
ae33bd81
JB		 7534 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7535 if (!ntrig) {
7536 err = -ENOMEM;
7537 goto error;
ff1b6e69 7538 }
ae33bd81
JB		 7539 cfg80211_rdev_free_wowlan(rdev);
7540 rdev->wowlan = ntrig;
ff1b6e69 7541
ae33bd81 7542 set_wakeup:
6d52563f 7543 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
e35e4d28 7544 rdev_set_wakeup(rdev, rdev->wowlan);
6d52563f 7545
ff1b6e69
JB		 7546 return 0;
7547 error:
7548 for (i = 0; i < new_triggers.n_patterns; i++)
7549 kfree(new_triggers.patterns[i].mask);
7550 kfree(new_triggers.patterns);
2a0e047e
JB		 7551 if (new_triggers.tcp && new_triggers.tcp->sock)
7552 sock_release(new_triggers.tcp->sock);
7553 kfree(new_triggers.tcp);
ff1b6e69
JB		 7554 return err;
7555}
dfb89c56 7556#endif
ff1b6e69 7557
e5497d76
JB		 7558static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7559{
7560 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7561 struct net_device *dev = info->user_ptr[1];
7562 struct wireless_dev *wdev = dev->ieee80211_ptr;
7563 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7564 struct cfg80211_gtk_rekey_data rekey_data;
7565 int err;
7566
7567 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7568 return -EINVAL;
7569
7570 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7571 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7572 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7573 nl80211_rekey_policy);
7574 if (err)
7575 return err;
7576
7577 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7578 return -ERANGE;
7579 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7580 return -ERANGE;
7581 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7582 return -ERANGE;
7583
7584 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7585 NL80211_KEK_LEN);
7586 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7587 NL80211_KCK_LEN);
7588 memcpy(rekey_data.replay_ctr,
7589 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7590 NL80211_REPLAY_CTR_LEN);
7591
7592 wdev_lock(wdev);
7593 if (!wdev->current_bss) {
7594 err = -ENOTCONN;
7595 goto out;
7596 }
7597
7598 if (!rdev->ops->set_rekey_data) {
7599 err = -EOPNOTSUPP;
7600 goto out;
7601 }
7602
e35e4d28 7603 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
e5497d76
JB		 7604 out:
7605 wdev_unlock(wdev);
7606 return err;
7607}
7608
28946da7
JB		 7609static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7610 struct genl_info *info)
7611{
7612 struct net_device *dev = info->user_ptr[1];
7613 struct wireless_dev *wdev = dev->ieee80211_ptr;
7614
7615 if (wdev->iftype != NL80211_IFTYPE_AP &&
7616 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7617 return -EINVAL;
7618
15e47304 7619 if (wdev->ap_unexpected_nlportid)
28946da7
JB		 7620 return -EBUSY;
7621
15e47304 7622 wdev->ap_unexpected_nlportid = info->snd_portid;
28946da7
JB		 7623 return 0;
7624}
7625
7f6cf311
JB		 7626static int nl80211_probe_client(struct sk_buff *skb,
7627 struct genl_info *info)
7628{
7629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7630 struct net_device *dev = info->user_ptr[1];
7631 struct wireless_dev *wdev = dev->ieee80211_ptr;
7632 struct sk_buff *msg;
7633 void *hdr;
7634 const u8 *addr;
7635 u64 cookie;
7636 int err;
7637
7638 if (wdev->iftype != NL80211_IFTYPE_AP &&
7639 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7640 return -EOPNOTSUPP;
7641
7642 if (!info->attrs[NL80211_ATTR_MAC])
7643 return -EINVAL;
7644
7645 if (!rdev->ops->probe_client)
7646 return -EOPNOTSUPP;
7647
7648 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7649 if (!msg)
7650 return -ENOMEM;
7651
15e47304 7652 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7f6cf311
JB		 7653 NL80211_CMD_PROBE_CLIENT);
7654
7655 if (IS_ERR(hdr)) {
7656 err = PTR_ERR(hdr);
7657 goto free_msg;
7658 }
7659
7660 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7661
e35e4d28 7662 err = rdev_probe_client(rdev, dev, addr, &cookie);
7f6cf311
JB		 7663 if (err)
7664 goto free_msg;
7665
9360ffd1
DM		 7666 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7667 goto nla_put_failure;
7f6cf311
JB		 7668
7669 genlmsg_end(msg, hdr);
7670
7671 return genlmsg_reply(msg, info);
7672
7673 nla_put_failure:
7674 err = -ENOBUFS;
7675 free_msg:
7676 nlmsg_free(msg);
7677 return err;
7678}
7679
5e760230
JB		 7680static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7681{
7682 struct cfg80211_registered_device *rdev = info->user_ptr[0];
37c73b5f
BG		 7683 struct cfg80211_beacon_registration *reg, *nreg;
7684 int rv;
5e760230
JB		 7685
7686 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7687 return -EOPNOTSUPP;
7688
37c73b5f
BG		 7689 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7690 if (!nreg)
7691 return -ENOMEM;
7692
7693 /* First, check if already registered. */
7694 spin_lock_bh(&rdev->beacon_registrations_lock);
7695 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7696 if (reg->nlportid == info->snd_portid) {
7697 rv = -EALREADY;
7698 goto out_err;
7699 }
7700 }
7701 /* Add it to the list */
7702 nreg->nlportid = info->snd_portid;
7703 list_add(&nreg->list, &rdev->beacon_registrations);
5e760230 7704
37c73b5f 7705 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 7706
7707 return 0;
37c73b5f
BG		 7708out_err:
7709 spin_unlock_bh(&rdev->beacon_registrations_lock);
7710 kfree(nreg);
7711 return rv;
5e760230
JB		 7712}
7713
98104fde
JB		 7714static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7715{
7716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7717 struct wireless_dev *wdev = info->user_ptr[1];
7718 int err;
7719
7720 if (!rdev->ops->start_p2p_device)
7721 return -EOPNOTSUPP;
7722
7723 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7724 return -EOPNOTSUPP;
7725
7726 if (wdev->p2p_started)
7727 return 0;
7728
7729 mutex_lock(&rdev->devlist_mtx);
7730 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7731 mutex_unlock(&rdev->devlist_mtx);
7732 if (err)
7733 return err;
7734
eeb126e9 7735 err = rdev_start_p2p_device(rdev, wdev);
98104fde
JB		 7736 if (err)
7737 return err;
7738
7739 wdev->p2p_started = true;
7740 mutex_lock(&rdev->devlist_mtx);
7741 rdev->opencount++;
7742 mutex_unlock(&rdev->devlist_mtx);
7743
7744 return 0;
7745}
7746
7747static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7748{
7749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7750 struct wireless_dev *wdev = info->user_ptr[1];
7751
7752 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7753 return -EOPNOTSUPP;
7754
7755 if (!rdev->ops->stop_p2p_device)
7756 return -EOPNOTSUPP;
7757
7758 if (!wdev->p2p_started)
7759 return 0;
7760
eeb126e9 7761 rdev_stop_p2p_device(rdev, wdev);
98104fde
JB		 7762 wdev->p2p_started = false;
7763
7764 mutex_lock(&rdev->devlist_mtx);
7765 rdev->opencount--;
7766 mutex_unlock(&rdev->devlist_mtx);
7767
7768 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7769 rdev->scan_req->aborted = true;
7770 ___cfg80211_scan_done(rdev, true);
7771 }
7772
7773 return 0;
7774}
7775
4c476991
JB		 7776#define NL80211_FLAG_NEED_WIPHY 0x01
7777#define NL80211_FLAG_NEED_NETDEV 0x02
7778#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 7779#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7780#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7781 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef 7782#define NL80211_FLAG_NEED_WDEV 0x10
98104fde 7783/* If a netdev is associated, it must be UP, P2P must be started */
1bf614ef
JB		 7784#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7785 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 7786
7787static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7788 struct genl_info *info)
7789{
7790 struct cfg80211_registered_device *rdev;
89a54e48 7791 struct wireless_dev *wdev;
4c476991 7792 struct net_device *dev;
4c476991
JB		 7793 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7794
7795 if (rtnl)
7796 rtnl_lock();
7797
7798 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 7799 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 7800 if (IS_ERR(rdev)) {
7801 if (rtnl)
7802 rtnl_unlock();
7803 return PTR_ERR(rdev);
7804 }
7805 info->user_ptr[0] = rdev;
1bf614ef
JB		 7806 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7807 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 7808 mutex_lock(&cfg80211_mutex);
7809 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7810 info->attrs);
7811 if (IS_ERR(wdev)) {
7812 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 7813 if (rtnl)
7814 rtnl_unlock();
89a54e48 7815 return PTR_ERR(wdev);
4c476991 7816 }
89a54e48 7817
89a54e48
JB		 7818 dev = wdev->netdev;
7819 rdev = wiphy_to_dev(wdev->wiphy);
7820
1bf614ef
JB		 7821 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7822 if (!dev) {
7823 mutex_unlock(&cfg80211_mutex);
7824 if (rtnl)
7825 rtnl_unlock();
7826 return -EINVAL;
7827 }
7828
7829 info->user_ptr[1] = dev;
7830 } else {
7831 info->user_ptr[1] = wdev;
41265714 7832 }
1bf614ef
JB		 7833
7834 if (dev) {
7835 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7836 !netif_running(dev)) {
7837 mutex_unlock(&cfg80211_mutex);
7838 if (rtnl)
7839 rtnl_unlock();
7840 return -ENETDOWN;
7841 }
7842
7843 dev_hold(dev);
98104fde
JB		 7844 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7845 if (!wdev->p2p_started) {
7846 mutex_unlock(&cfg80211_mutex);
7847 if (rtnl)
7848 rtnl_unlock();
7849 return -ENETDOWN;
7850 }
41265714 7851 }
89a54e48 7852
89a54e48
JB		 7853 cfg80211_lock_rdev(rdev);
7854
7855 mutex_unlock(&cfg80211_mutex);
7856
4c476991 7857 info->user_ptr[0] = rdev;
4c476991
JB		 7858 }
7859
7860 return 0;
7861}
7862
7863static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7864 struct genl_info *info)
7865{
7866 if (info->user_ptr[0])
7867 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 7868 if (info->user_ptr[1]) {
7869 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7870 struct wireless_dev *wdev = info->user_ptr[1];
7871
7872 if (wdev->netdev)
7873 dev_put(wdev->netdev);
7874 } else {
7875 dev_put(info->user_ptr[1]);
7876 }
7877 }
4c476991
JB		 7878 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7879 rtnl_unlock();
7880}
7881
55682965
JB		 7882static struct genl_ops nl80211_ops[] = {
7883 {
7884 .cmd = NL80211_CMD_GET_WIPHY,
7885 .doit = nl80211_get_wiphy,
7886 .dumpit = nl80211_dump_wiphy,
7887 .policy = nl80211_policy,
7888 /* can be retrieved by unprivileged users */
4c476991 7889 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 7890 },
7891 {
7892 .cmd = NL80211_CMD_SET_WIPHY,
7893 .doit = nl80211_set_wiphy,
7894 .policy = nl80211_policy,
7895 .flags = GENL_ADMIN_PERM,
4c476991 7896 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 7897 },
7898 {
7899 .cmd = NL80211_CMD_GET_INTERFACE,
7900 .doit = nl80211_get_interface,
7901 .dumpit = nl80211_dump_interface,
7902 .policy = nl80211_policy,
7903 /* can be retrieved by unprivileged users */
72fb2abc 7904 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 7905 },
7906 {
7907 .cmd = NL80211_CMD_SET_INTERFACE,
7908 .doit = nl80211_set_interface,
7909 .policy = nl80211_policy,
7910 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7911 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7912 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7913 },
7914 {
7915 .cmd = NL80211_CMD_NEW_INTERFACE,
7916 .doit = nl80211_new_interface,
7917 .policy = nl80211_policy,
7918 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7919 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7920 NL80211_FLAG_NEED_RTNL,
55682965
JB		 7921 },
7922 {
7923 .cmd = NL80211_CMD_DEL_INTERFACE,
7924 .doit = nl80211_del_interface,
7925 .policy = nl80211_policy,
41ade00f 7926 .flags = GENL_ADMIN_PERM,
84efbb84 7927 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7928 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7929 },
7930 {
7931 .cmd = NL80211_CMD_GET_KEY,
7932 .doit = nl80211_get_key,
7933 .policy = nl80211_policy,
7934 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7935 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7936 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7937 },
7938 {
7939 .cmd = NL80211_CMD_SET_KEY,
7940 .doit = nl80211_set_key,
7941 .policy = nl80211_policy,
7942 .flags = GENL_ADMIN_PERM,
41265714 7943 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7944 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7945 },
7946 {
7947 .cmd = NL80211_CMD_NEW_KEY,
7948 .doit = nl80211_new_key,
7949 .policy = nl80211_policy,
7950 .flags = GENL_ADMIN_PERM,
41265714 7951 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7952 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 7953 },
7954 {
7955 .cmd = NL80211_CMD_DEL_KEY,
7956 .doit = nl80211_del_key,
7957 .policy = nl80211_policy,
55682965 7958 .flags = GENL_ADMIN_PERM,
41265714 7959 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7960 NL80211_FLAG_NEED_RTNL,
55682965 7961 },
ed1b6cc7
JB		 7962 {
7963 .cmd = NL80211_CMD_SET_BEACON,
7964 .policy = nl80211_policy,
7965 .flags = GENL_ADMIN_PERM,
8860020e 7966 .doit = nl80211_set_beacon,
2b5f8b0b 7967 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7968 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7969 },
7970 {
8860020e 7971 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7972 .policy = nl80211_policy,
7973 .flags = GENL_ADMIN_PERM,
8860020e 7974 .doit = nl80211_start_ap,
2b5f8b0b 7975 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7976 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7977 },
7978 {
8860020e 7979 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7980 .policy = nl80211_policy,
7981 .flags = GENL_ADMIN_PERM,
8860020e 7982 .doit = nl80211_stop_ap,
2b5f8b0b 7983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7984 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7985 },
5727ef1b
JB		 7986 {
7987 .cmd = NL80211_CMD_GET_STATION,
7988 .doit = nl80211_get_station,
2ec600d6 7989 .dumpit = nl80211_dump_station,
5727ef1b 7990 .policy = nl80211_policy,
4c476991
JB		 7991 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7992 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7993 },
7994 {
7995 .cmd = NL80211_CMD_SET_STATION,
7996 .doit = nl80211_set_station,
7997 .policy = nl80211_policy,
7998 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7999 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8000 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8001 },
8002 {
8003 .cmd = NL80211_CMD_NEW_STATION,
8004 .doit = nl80211_new_station,
8005 .policy = nl80211_policy,
8006 .flags = GENL_ADMIN_PERM,
41265714 8007 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8008 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 8009 },
8010 {
8011 .cmd = NL80211_CMD_DEL_STATION,
8012 .doit = nl80211_del_station,
8013 .policy = nl80211_policy,
2ec600d6 8014 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8015 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8016 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8017 },
8018 {
8019 .cmd = NL80211_CMD_GET_MPATH,
8020 .doit = nl80211_get_mpath,
8021 .dumpit = nl80211_dump_mpath,
8022 .policy = nl80211_policy,
8023 .flags = GENL_ADMIN_PERM,
41265714 8024 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8025 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8026 },
8027 {
8028 .cmd = NL80211_CMD_SET_MPATH,
8029 .doit = nl80211_set_mpath,
8030 .policy = nl80211_policy,
8031 .flags = GENL_ADMIN_PERM,
41265714 8032 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8033 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8034 },
8035 {
8036 .cmd = NL80211_CMD_NEW_MPATH,
8037 .doit = nl80211_new_mpath,
8038 .policy = nl80211_policy,
8039 .flags = GENL_ADMIN_PERM,
41265714 8040 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8041 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 8042 },
8043 {
8044 .cmd = NL80211_CMD_DEL_MPATH,
8045 .doit = nl80211_del_mpath,
8046 .policy = nl80211_policy,
9f1ba906 8047 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8048 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8049 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 8050 },
8051 {
8052 .cmd = NL80211_CMD_SET_BSS,
8053 .doit = nl80211_set_bss,
8054 .policy = nl80211_policy,
b2e1b302 8055 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8056 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8057 NL80211_FLAG_NEED_RTNL,
b2e1b302 8058 },
f130347c
LR		 8059 {
8060 .cmd = NL80211_CMD_GET_REG,
8061 .doit = nl80211_get_reg,
8062 .policy = nl80211_policy,
8063 /* can be retrieved by unprivileged users */
8064 },
b2e1b302
LR		 8065 {
8066 .cmd = NL80211_CMD_SET_REG,
8067 .doit = nl80211_set_reg,
8068 .policy = nl80211_policy,
8069 .flags = GENL_ADMIN_PERM,
8070 },
8071 {
8072 .cmd = NL80211_CMD_REQ_SET_REG,
8073 .doit = nl80211_req_set_reg,
8074 .policy = nl80211_policy,
93da9cc1 8075 .flags = GENL_ADMIN_PERM,
8076 },
8077 {
24bdd9f4
JC		 8078 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8079 .doit = nl80211_get_mesh_config,
93da9cc1 8080 .policy = nl80211_policy,
8081 /* can be retrieved by unprivileged users */
2b5f8b0b 8082 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8083 NL80211_FLAG_NEED_RTNL,
93da9cc1 8084 },
8085 {
24bdd9f4
JC		 8086 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8087 .doit = nl80211_update_mesh_config,
93da9cc1 8088 .policy = nl80211_policy,
9aed3cc1 8089 .flags = GENL_ADMIN_PERM,
29cbe68c 8090 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8091 NL80211_FLAG_NEED_RTNL,
9aed3cc1 8092 },
2a519311
JB		 8093 {
8094 .cmd = NL80211_CMD_TRIGGER_SCAN,
8095 .doit = nl80211_trigger_scan,
8096 .policy = nl80211_policy,
8097 .flags = GENL_ADMIN_PERM,
fd014284 8098 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8099 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 8100 },
8101 {
8102 .cmd = NL80211_CMD_GET_SCAN,
8103 .policy = nl80211_policy,
8104 .dumpit = nl80211_dump_scan,
8105 },
807f8a8c
LC		 8106 {
8107 .cmd = NL80211_CMD_START_SCHED_SCAN,
8108 .doit = nl80211_start_sched_scan,
8109 .policy = nl80211_policy,
8110 .flags = GENL_ADMIN_PERM,
8111 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8112 NL80211_FLAG_NEED_RTNL,
8113 },
8114 {
8115 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8116 .doit = nl80211_stop_sched_scan,
8117 .policy = nl80211_policy,
8118 .flags = GENL_ADMIN_PERM,
8119 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8120 NL80211_FLAG_NEED_RTNL,
8121 },
636a5d36
JM		 8122 {
8123 .cmd = NL80211_CMD_AUTHENTICATE,
8124 .doit = nl80211_authenticate,
8125 .policy = nl80211_policy,
8126 .flags = GENL_ADMIN_PERM,
41265714 8127 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8128 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8129 },
8130 {
8131 .cmd = NL80211_CMD_ASSOCIATE,
8132 .doit = nl80211_associate,
8133 .policy = nl80211_policy,
8134 .flags = GENL_ADMIN_PERM,
41265714 8135 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8136 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8137 },
8138 {
8139 .cmd = NL80211_CMD_DEAUTHENTICATE,
8140 .doit = nl80211_deauthenticate,
8141 .policy = nl80211_policy,
8142 .flags = GENL_ADMIN_PERM,
41265714 8143 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8144 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 8145 },
8146 {
8147 .cmd = NL80211_CMD_DISASSOCIATE,
8148 .doit = nl80211_disassociate,
8149 .policy = nl80211_policy,
8150 .flags = GENL_ADMIN_PERM,
41265714 8151 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8152 NL80211_FLAG_NEED_RTNL,
636a5d36 8153 },
04a773ad
JB		 8154 {
8155 .cmd = NL80211_CMD_JOIN_IBSS,
8156 .doit = nl80211_join_ibss,
8157 .policy = nl80211_policy,
8158 .flags = GENL_ADMIN_PERM,
41265714 8159 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8160 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 8161 },
8162 {
8163 .cmd = NL80211_CMD_LEAVE_IBSS,
8164 .doit = nl80211_leave_ibss,
8165 .policy = nl80211_policy,
8166 .flags = GENL_ADMIN_PERM,
41265714 8167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8168 NL80211_FLAG_NEED_RTNL,
04a773ad 8169 },
aff89a9b
JB		 8170#ifdef CONFIG_NL80211_TESTMODE
8171 {
8172 .cmd = NL80211_CMD_TESTMODE,
8173 .doit = nl80211_testmode_do,
71063f0e 8174 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 8175 .policy = nl80211_policy,
8176 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8177 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8178 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 8179 },
8180#endif
b23aa676
SO		 8181 {
8182 .cmd = NL80211_CMD_CONNECT,
8183 .doit = nl80211_connect,
8184 .policy = nl80211_policy,
8185 .flags = GENL_ADMIN_PERM,
41265714 8186 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8187 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 8188 },
8189 {
8190 .cmd = NL80211_CMD_DISCONNECT,
8191 .doit = nl80211_disconnect,
8192 .policy = nl80211_policy,
8193 .flags = GENL_ADMIN_PERM,
41265714 8194 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8195 NL80211_FLAG_NEED_RTNL,
b23aa676 8196 },
463d0183
JB		 8197 {
8198 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8199 .doit = nl80211_wiphy_netns,
8200 .policy = nl80211_policy,
8201 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8202 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8203 NL80211_FLAG_NEED_RTNL,
463d0183 8204 },
61fa713c
HS		 8205 {
8206 .cmd = NL80211_CMD_GET_SURVEY,
8207 .policy = nl80211_policy,
8208 .dumpit = nl80211_dump_survey,
8209 },
67fbb16b
SO		 8210 {
8211 .cmd = NL80211_CMD_SET_PMKSA,
8212 .doit = nl80211_setdel_pmksa,
8213 .policy = nl80211_policy,
8214 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8216 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8217 },
8218 {
8219 .cmd = NL80211_CMD_DEL_PMKSA,
8220 .doit = nl80211_setdel_pmksa,
8221 .policy = nl80211_policy,
8222 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8223 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8224 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 8225 },
8226 {
8227 .cmd = NL80211_CMD_FLUSH_PMKSA,
8228 .doit = nl80211_flush_pmksa,
8229 .policy = nl80211_policy,
8230 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8231 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 8232 NL80211_FLAG_NEED_RTNL,
67fbb16b 8233 },
9588bbd5
JM		 8234 {
8235 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8236 .doit = nl80211_remain_on_channel,
8237 .policy = nl80211_policy,
8238 .flags = GENL_ADMIN_PERM,
71bbc994 8239 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8240 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 8241 },
8242 {
8243 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8244 .doit = nl80211_cancel_remain_on_channel,
8245 .policy = nl80211_policy,
8246 .flags = GENL_ADMIN_PERM,
71bbc994 8247 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8248 NL80211_FLAG_NEED_RTNL,
9588bbd5 8249 },
13ae75b1
JM		 8250 {
8251 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8252 .doit = nl80211_set_tx_bitrate_mask,
8253 .policy = nl80211_policy,
8254 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8255 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8256 NL80211_FLAG_NEED_RTNL,
13ae75b1 8257 },
026331c4 8258 {
2e161f78
JB		 8259 .cmd = NL80211_CMD_REGISTER_FRAME,
8260 .doit = nl80211_register_mgmt,
026331c4
JM		 8261 .policy = nl80211_policy,
8262 .flags = GENL_ADMIN_PERM,
71bbc994 8263 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 8264 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 8265 },
8266 {
2e161f78
JB		 8267 .cmd = NL80211_CMD_FRAME,
8268 .doit = nl80211_tx_mgmt,
026331c4 8269 .policy = nl80211_policy,
f7ca38df 8270 .flags = GENL_ADMIN_PERM,
71bbc994 8271 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 8272 NL80211_FLAG_NEED_RTNL,
8273 },
8274 {
8275 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8276 .doit = nl80211_tx_mgmt_cancel_wait,
8277 .policy = nl80211_policy,
026331c4 8278 .flags = GENL_ADMIN_PERM,
71bbc994 8279 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 8280 NL80211_FLAG_NEED_RTNL,
026331c4 8281 },
ffb9eb3d
KV		 8282 {
8283 .cmd = NL80211_CMD_SET_POWER_SAVE,
8284 .doit = nl80211_set_power_save,
8285 .policy = nl80211_policy,
8286 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8287 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8288 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 8289 },
8290 {
8291 .cmd = NL80211_CMD_GET_POWER_SAVE,
8292 .doit = nl80211_get_power_save,
8293 .policy = nl80211_policy,
8294 /* can be retrieved by unprivileged users */
4c476991
JB		 8295 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8296 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 8297 },
d6dc1a38
JO		 8298 {
8299 .cmd = NL80211_CMD_SET_CQM,
8300 .doit = nl80211_set_cqm,
8301 .policy = nl80211_policy,
8302 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8303 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8304 NL80211_FLAG_NEED_RTNL,
d6dc1a38 8305 },
f444de05
JB		 8306 {
8307 .cmd = NL80211_CMD_SET_CHANNEL,
8308 .doit = nl80211_set_channel,
8309 .policy = nl80211_policy,
8310 .flags = GENL_ADMIN_PERM,
4c476991
JB		 8311 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8312 NL80211_FLAG_NEED_RTNL,
f444de05 8313 },
e8347eba
BJ		 8314 {
8315 .cmd = NL80211_CMD_SET_WDS_PEER,
8316 .doit = nl80211_set_wds_peer,
8317 .policy = nl80211_policy,
8318 .flags = GENL_ADMIN_PERM,
43b19952
JB		 8319 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8320 NL80211_FLAG_NEED_RTNL,
e8347eba 8321 },
29cbe68c
JB		 8322 {
8323 .cmd = NL80211_CMD_JOIN_MESH,
8324 .doit = nl80211_join_mesh,
8325 .policy = nl80211_policy,
8326 .flags = GENL_ADMIN_PERM,
8327 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8328 NL80211_FLAG_NEED_RTNL,
8329 },
8330 {
8331 .cmd = NL80211_CMD_LEAVE_MESH,
8332 .doit = nl80211_leave_mesh,
8333 .policy = nl80211_policy,
8334 .flags = GENL_ADMIN_PERM,
8335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8336 NL80211_FLAG_NEED_RTNL,
8337 },
dfb89c56 8338#ifdef CONFIG_PM
ff1b6e69
JB		 8339 {
8340 .cmd = NL80211_CMD_GET_WOWLAN,
8341 .doit = nl80211_get_wowlan,
8342 .policy = nl80211_policy,
8343 /* can be retrieved by unprivileged users */
8344 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8345 NL80211_FLAG_NEED_RTNL,
8346 },
8347 {
8348 .cmd = NL80211_CMD_SET_WOWLAN,
8349 .doit = nl80211_set_wowlan,
8350 .policy = nl80211_policy,
8351 .flags = GENL_ADMIN_PERM,
8352 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8353 NL80211_FLAG_NEED_RTNL,
8354 },
dfb89c56 8355#endif
e5497d76
JB		 8356 {
8357 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8358 .doit = nl80211_set_rekey_data,
8359 .policy = nl80211_policy,
8360 .flags = GENL_ADMIN_PERM,
8361 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8362 NL80211_FLAG_NEED_RTNL,
8363 },
109086ce
AN		 8364 {
8365 .cmd = NL80211_CMD_TDLS_MGMT,
8366 .doit = nl80211_tdls_mgmt,
8367 .policy = nl80211_policy,
8368 .flags = GENL_ADMIN_PERM,
8369 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8370 NL80211_FLAG_NEED_RTNL,
8371 },
8372 {
8373 .cmd = NL80211_CMD_TDLS_OPER,
8374 .doit = nl80211_tdls_oper,
8375 .policy = nl80211_policy,
8376 .flags = GENL_ADMIN_PERM,
8377 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8378 NL80211_FLAG_NEED_RTNL,
8379 },
28946da7
JB		 8380 {
8381 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8382 .doit = nl80211_register_unexpected_frame,
8383 .policy = nl80211_policy,
8384 .flags = GENL_ADMIN_PERM,
8385 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8386 NL80211_FLAG_NEED_RTNL,
8387 },
7f6cf311
JB		 8388 {
8389 .cmd = NL80211_CMD_PROBE_CLIENT,
8390 .doit = nl80211_probe_client,
8391 .policy = nl80211_policy,
8392 .flags = GENL_ADMIN_PERM,
2b5f8b0b 8393 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 8394 NL80211_FLAG_NEED_RTNL,
8395 },
5e760230
JB		 8396 {
8397 .cmd = NL80211_CMD_REGISTER_BEACONS,
8398 .doit = nl80211_register_beacons,
8399 .policy = nl80211_policy,
8400 .flags = GENL_ADMIN_PERM,
8401 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8402 NL80211_FLAG_NEED_RTNL,
8403 },
1d9d9213
SW		 8404 {
8405 .cmd = NL80211_CMD_SET_NOACK_MAP,
8406 .doit = nl80211_set_noack_map,
8407 .policy = nl80211_policy,
8408 .flags = GENL_ADMIN_PERM,
8409 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8410 NL80211_FLAG_NEED_RTNL,
8411 },
98104fde
JB		 8412 {
8413 .cmd = NL80211_CMD_START_P2P_DEVICE,
8414 .doit = nl80211_start_p2p_device,
8415 .policy = nl80211_policy,
8416 .flags = GENL_ADMIN_PERM,
8417 .internal_flags = NL80211_FLAG_NEED_WDEV |
8418 NL80211_FLAG_NEED_RTNL,
8419 },
8420 {
8421 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8422 .doit = nl80211_stop_p2p_device,
8423 .policy = nl80211_policy,
8424 .flags = GENL_ADMIN_PERM,
8425 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8426 NL80211_FLAG_NEED_RTNL,
8427 },
f4e583c8
AQ		 8428 {
8429 .cmd = NL80211_CMD_SET_MCAST_RATE,
8430 .doit = nl80211_set_mcast_rate,
77765eaf
VT		 8431 .policy = nl80211_policy,
8432 .flags = GENL_ADMIN_PERM,
8433 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8434 NL80211_FLAG_NEED_RTNL,
8435 },
8436 {
8437 .cmd = NL80211_CMD_SET_MAC_ACL,
8438 .doit = nl80211_set_mac_acl,
f4e583c8
AQ		 8439 .policy = nl80211_policy,
8440 .flags = GENL_ADMIN_PERM,
8441 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8442 NL80211_FLAG_NEED_RTNL,
8443 },
04f39047
SW		 8444 {
8445 .cmd = NL80211_CMD_RADAR_DETECT,
8446 .doit = nl80211_start_radar_detection,
8447 .policy = nl80211_policy,
8448 .flags = GENL_ADMIN_PERM,
8449 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8450 NL80211_FLAG_NEED_RTNL,
8451 },
55682965 8452};
9588bbd5 8453
6039f6d2
JM		 8454static struct genl_multicast_group nl80211_mlme_mcgrp = {
8455 .name = "mlme",
8456};
55682965
JB		 8457
8458/* multicast groups */
8459static struct genl_multicast_group nl80211_config_mcgrp = {
8460 .name = "config",
8461};
2a519311
JB		 8462static struct genl_multicast_group nl80211_scan_mcgrp = {
8463 .name = "scan",
8464};
73d54c9e
LR		 8465static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8466 .name = "regulatory",
8467};
55682965
JB		 8468
8469/* notification functions */
8470
8471void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8472{
8473 struct sk_buff *msg;
8474
fd2120ca 8475 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 8476 if (!msg)
8477 return;
8478
8479 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
8480 nlmsg_free(msg);
8481 return;
8482 }
8483
463d0183
JB		 8484 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8485 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 8486}
8487
362a415d
JB		 8488static int nl80211_add_scan_req(struct sk_buff *msg,
8489 struct cfg80211_registered_device *rdev)
8490{
8491 struct cfg80211_scan_request *req = rdev->scan_req;
8492 struct nlattr *nest;
8493 int i;
8494
667503dd
JB		 8495 ASSERT_RDEV_LOCK(rdev);
8496
362a415d
JB		 8497 if (WARN_ON(!req))
8498 return 0;
8499
8500 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8501 if (!nest)
8502 goto nla_put_failure;
9360ffd1
DM		 8503 for (i = 0; i < req->n_ssids; i++) {
8504 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8505 goto nla_put_failure;
8506 }
362a415d
JB		 8507 nla_nest_end(msg, nest);
8508
8509 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8510 if (!nest)
8511 goto nla_put_failure;
9360ffd1
DM		 8512 for (i = 0; i < req->n_channels; i++) {
8513 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8514 goto nla_put_failure;
8515 }
362a415d
JB		 8516 nla_nest_end(msg, nest);
8517
9360ffd1
DM		 8518 if (req->ie &&
8519 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8520 goto nla_put_failure;
362a415d 8521
ed473771
SL		 8522 if (req->flags)
8523 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8524
362a415d
JB		 8525 return 0;
8526 nla_put_failure:
8527 return -ENOBUFS;
8528}
8529
a538e2d5
JB		 8530static int nl80211_send_scan_msg(struct sk_buff *msg,
8531 struct cfg80211_registered_device *rdev,
fd014284 8532 struct wireless_dev *wdev,
15e47304 8533 u32 portid, u32 seq, int flags,
a538e2d5 8534 u32 cmd)
2a519311
JB		 8535{
8536 void *hdr;
8537
15e47304 8538 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2a519311
JB		 8539 if (!hdr)
8540 return -1;
8541
9360ffd1 8542 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 8543 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8544 wdev->netdev->ifindex)) ||
8545 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 8546 goto nla_put_failure;
2a519311 8547
362a415d
JB		 8548 /* ignore errors and send incomplete event anyway */
8549 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 8550
8551 return genlmsg_end(msg, hdr);
8552
8553 nla_put_failure:
8554 genlmsg_cancel(msg, hdr);
8555 return -EMSGSIZE;
8556}
8557
807f8a8c
LC		 8558static int
8559nl80211_send_sched_scan_msg(struct sk_buff *msg,
8560 struct cfg80211_registered_device *rdev,
8561 struct net_device *netdev,
15e47304 8562 u32 portid, u32 seq, int flags, u32 cmd)
807f8a8c
LC		 8563{
8564 void *hdr;
8565
15e47304 8566 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
807f8a8c
LC		 8567 if (!hdr)
8568 return -1;
8569
9360ffd1
DM		 8570 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8571 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8572 goto nla_put_failure;
807f8a8c
LC		 8573
8574 return genlmsg_end(msg, hdr);
8575
8576 nla_put_failure:
8577 genlmsg_cancel(msg, hdr);
8578 return -EMSGSIZE;
8579}
8580
a538e2d5 8581void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 8582 struct wireless_dev *wdev)
a538e2d5
JB		 8583{
8584 struct sk_buff *msg;
8585
58050fce 8586 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 8587 if (!msg)
8588 return;
8589
fd014284 8590 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 8591 NL80211_CMD_TRIGGER_SCAN) < 0) {
8592 nlmsg_free(msg);
8593 return;
8594 }
8595
463d0183
JB		 8596 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8597 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 8598}
8599
2a519311 8600void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 8601 struct wireless_dev *wdev)
2a519311
JB		 8602{
8603 struct sk_buff *msg;
8604
fd2120ca 8605 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8606 if (!msg)
8607 return;
8608
fd014284 8609 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8610 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 8611 nlmsg_free(msg);
8612 return;
8613 }
8614
463d0183
JB		 8615 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8616 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8617}
8618
8619void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 8620 struct wireless_dev *wdev)
2a519311
JB		 8621{
8622 struct sk_buff *msg;
8623
fd2120ca 8624 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 8625 if (!msg)
8626 return;
8627
fd014284 8628 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 8629 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 8630 nlmsg_free(msg);
8631 return;
8632 }
8633
463d0183
JB		 8634 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8635 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 8636}
8637
807f8a8c
LC		 8638void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8639 struct net_device *netdev)
8640{
8641 struct sk_buff *msg;
8642
8643 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8644 if (!msg)
8645 return;
8646
8647 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8648 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8649 nlmsg_free(msg);
8650 return;
8651 }
8652
8653 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8654 nl80211_scan_mcgrp.id, GFP_KERNEL);
8655}
8656
8657void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8658 struct net_device *netdev, u32 cmd)
8659{
8660 struct sk_buff *msg;
8661
58050fce 8662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 8663 if (!msg)
8664 return;
8665
8666 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8667 nlmsg_free(msg);
8668 return;
8669 }
8670
8671 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8672 nl80211_scan_mcgrp.id, GFP_KERNEL);
8673}
8674
73d54c9e
LR		 8675/*
8676 * This can happen on global regulatory changes or device specific settings
8677 * based on custom world regulatory domains.
8678 */
8679void nl80211_send_reg_change_event(struct regulatory_request *request)
8680{
8681 struct sk_buff *msg;
8682 void *hdr;
8683
fd2120ca 8684 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 8685 if (!msg)
8686 return;
8687
8688 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8689 if (!hdr) {
8690 nlmsg_free(msg);
8691 return;
8692 }
8693
8694 /* Userspace can always count this one always being set */
9360ffd1
DM		 8695 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8696 goto nla_put_failure;
8697
8698 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8699 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8700 NL80211_REGDOM_TYPE_WORLD))
8701 goto nla_put_failure;
8702 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8703 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8704 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8705 goto nla_put_failure;
8706 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8707 request->intersect) {
8708 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8709 NL80211_REGDOM_TYPE_INTERSECTION))
8710 goto nla_put_failure;
8711 } else {
8712 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8713 NL80211_REGDOM_TYPE_COUNTRY) ||
8714 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8715 request->alpha2))
8716 goto nla_put_failure;
8717 }
8718
f4173766 8719 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9360ffd1
DM		 8720 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8721 goto nla_put_failure;
73d54c9e 8722
3b7b72ee 8723 genlmsg_end(msg, hdr);
73d54c9e 8724
bc43b28c 8725 rcu_read_lock();
463d0183 8726 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 8727 GFP_ATOMIC);
8728 rcu_read_unlock();
73d54c9e
LR		 8729
8730 return;
8731
8732nla_put_failure:
8733 genlmsg_cancel(msg, hdr);
8734 nlmsg_free(msg);
8735}
8736
6039f6d2
JM		 8737static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8738 struct net_device *netdev,
8739 const u8 *buf, size_t len,
e6d6e342 8740 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 8741{
8742 struct sk_buff *msg;
8743 void *hdr;
8744
e6d6e342 8745 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 8746 if (!msg)
8747 return;
8748
8749 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8750 if (!hdr) {
8751 nlmsg_free(msg);
8752 return;
8753 }
8754
9360ffd1
DM		 8755 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8756 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8757 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8758 goto nla_put_failure;
6039f6d2 8759
3b7b72ee 8760 genlmsg_end(msg, hdr);
6039f6d2 8761
463d0183
JB		 8762 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8763 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 8764 return;
8765
8766 nla_put_failure:
8767 genlmsg_cancel(msg, hdr);
8768 nlmsg_free(msg);
8769}
8770
8771void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8772 struct net_device *netdev, const u8 *buf,
8773 size_t len, gfp_t gfp)
6039f6d2
JM		 8774{
8775 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8776 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 8777}
8778
8779void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8780 struct net_device *netdev, const u8 *buf,
e6d6e342 8781 size_t len, gfp_t gfp)
6039f6d2 8782{
e6d6e342
JB		 8783 nl80211_send_mlme_event(rdev, netdev, buf, len,
8784 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 8785}
8786
53b46b84 8787void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8788 struct net_device *netdev, const u8 *buf,
8789 size_t len, gfp_t gfp)
6039f6d2
JM		 8790{
8791 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8792 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 8793}
8794
53b46b84
JM		 8795void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8796 struct net_device *netdev, const u8 *buf,
e6d6e342 8797 size_t len, gfp_t gfp)
6039f6d2
JM		 8798{
8799 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 8800 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 8801}
8802
cf4e594e
JM		 8803void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8804 struct net_device *netdev, const u8 *buf,
8805 size_t len, gfp_t gfp)
8806{
8807 nl80211_send_mlme_event(rdev, netdev, buf, len,
8808 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8809}
8810
8811void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8812 struct net_device *netdev, const u8 *buf,
8813 size_t len, gfp_t gfp)
8814{
8815 nl80211_send_mlme_event(rdev, netdev, buf, len,
8816 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8817}
8818
1b06bb40
LR		 8819static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8820 struct net_device *netdev, int cmd,
e6d6e342 8821 const u8 *addr, gfp_t gfp)
1965c853
JM		 8822{
8823 struct sk_buff *msg;
8824 void *hdr;
8825
e6d6e342 8826 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 8827 if (!msg)
8828 return;
8829
8830 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8831 if (!hdr) {
8832 nlmsg_free(msg);
8833 return;
8834 }
8835
9360ffd1
DM		 8836 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8837 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8838 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8839 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8840 goto nla_put_failure;
1965c853 8841
3b7b72ee 8842 genlmsg_end(msg, hdr);
1965c853 8843
463d0183
JB		 8844 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8845 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 8846 return;
8847
8848 nla_put_failure:
8849 genlmsg_cancel(msg, hdr);
8850 nlmsg_free(msg);
8851}
8852
8853void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8854 struct net_device *netdev, const u8 *addr,
8855 gfp_t gfp)
1965c853
JM		 8856{
8857 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 8858 addr, gfp);
1965c853
JM		 8859}
8860
8861void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 8862 struct net_device *netdev, const u8 *addr,
8863 gfp_t gfp)
1965c853 8864{
e6d6e342
JB		 8865 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8866 addr, gfp);
1965c853
JM		 8867}
8868
b23aa676
SO		 8869void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8870 struct net_device *netdev, const u8 *bssid,
8871 const u8 *req_ie, size_t req_ie_len,
8872 const u8 *resp_ie, size_t resp_ie_len,
8873 u16 status, gfp_t gfp)
8874{
8875 struct sk_buff *msg;
8876 void *hdr;
8877
58050fce 8878 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8879 if (!msg)
8880 return;
8881
8882 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8883 if (!hdr) {
8884 nlmsg_free(msg);
8885 return;
8886 }
8887
9360ffd1
DM		 8888 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8889 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8890 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8891 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8892 (req_ie &&
8893 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8894 (resp_ie &&
8895 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8896 goto nla_put_failure;
b23aa676 8897
3b7b72ee 8898 genlmsg_end(msg, hdr);
b23aa676 8899
463d0183
JB		 8900 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8901 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8902 return;
8903
8904 nla_put_failure:
8905 genlmsg_cancel(msg, hdr);
8906 nlmsg_free(msg);
8907
8908}
8909
8910void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8911 struct net_device *netdev, const u8 *bssid,
8912 const u8 *req_ie, size_t req_ie_len,
8913 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8914{
8915 struct sk_buff *msg;
8916 void *hdr;
8917
58050fce 8918 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 8919 if (!msg)
8920 return;
8921
8922 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8923 if (!hdr) {
8924 nlmsg_free(msg);
8925 return;
8926 }
8927
9360ffd1
DM		 8928 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8929 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8930 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8931 (req_ie &&
8932 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8933 (resp_ie &&
8934 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8935 goto nla_put_failure;
b23aa676 8936
3b7b72ee 8937 genlmsg_end(msg, hdr);
b23aa676 8938
463d0183
JB		 8939 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8940 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 8941 return;
8942
8943 nla_put_failure:
8944 genlmsg_cancel(msg, hdr);
8945 nlmsg_free(msg);
8946
8947}
8948
8949void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8950 struct net_device *netdev, u16 reason,
667503dd 8951 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 8952{
8953 struct sk_buff *msg;
8954 void *hdr;
8955
58050fce 8956 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 8957 if (!msg)
8958 return;
8959
8960 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8961 if (!hdr) {
8962 nlmsg_free(msg);
8963 return;
8964 }
8965
9360ffd1
DM		 8966 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8967 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8968 (from_ap && reason &&
8969 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8970 (from_ap &&
8971 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8972 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8973 goto nla_put_failure;
b23aa676 8974
3b7b72ee 8975 genlmsg_end(msg, hdr);
b23aa676 8976
463d0183
JB		 8977 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8978 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 8979 return;
8980
8981 nla_put_failure:
8982 genlmsg_cancel(msg, hdr);
8983 nlmsg_free(msg);
8984
8985}
8986
04a773ad
JB		 8987void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8988 struct net_device *netdev, const u8 *bssid,
8989 gfp_t gfp)
8990{
8991 struct sk_buff *msg;
8992 void *hdr;
8993
fd2120ca 8994 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 8995 if (!msg)
8996 return;
8997
8998 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8999 if (!hdr) {
9000 nlmsg_free(msg);
9001 return;
9002 }
9003
9360ffd1
DM		 9004 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9005 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9006 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9007 goto nla_put_failure;
04a773ad 9008
3b7b72ee 9009 genlmsg_end(msg, hdr);
04a773ad 9010
463d0183
JB		 9011 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9012 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 9013 return;
9014
9015 nla_put_failure:
9016 genlmsg_cancel(msg, hdr);
9017 nlmsg_free(msg);
9018}
9019
c93b5e71
JC		 9020void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
9021 struct net_device *netdev,
9022 const u8 *macaddr, const u8* ie, u8 ie_len,
9023 gfp_t gfp)
9024{
9025 struct sk_buff *msg;
9026 void *hdr;
9027
9028 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9029 if (!msg)
9030 return;
9031
9032 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9033 if (!hdr) {
9034 nlmsg_free(msg);
9035 return;
9036 }
9037
9360ffd1
DM		 9038 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9039 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9040 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
9041 (ie_len && ie &&
9042 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9043 goto nla_put_failure;
c93b5e71 9044
3b7b72ee 9045 genlmsg_end(msg, hdr);
c93b5e71
JC		 9046
9047 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9048 nl80211_mlme_mcgrp.id, gfp);
9049 return;
9050
9051 nla_put_failure:
9052 genlmsg_cancel(msg, hdr);
9053 nlmsg_free(msg);
9054}
9055
a3b8b056
JM		 9056void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9057 struct net_device *netdev, const u8 *addr,
9058 enum nl80211_key_type key_type, int key_id,
e6d6e342 9059 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 9060{
9061 struct sk_buff *msg;
9062 void *hdr;
9063
e6d6e342 9064 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 9065 if (!msg)
9066 return;
9067
9068 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9069 if (!hdr) {
9070 nlmsg_free(msg);
9071 return;
9072 }
9073
9360ffd1
DM		 9074 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9075 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9076 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9077 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9078 (key_id != -1 &&
9079 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9080 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9081 goto nla_put_failure;
a3b8b056 9082
3b7b72ee 9083 genlmsg_end(msg, hdr);
a3b8b056 9084
463d0183
JB		 9085 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9086 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 9087 return;
9088
9089 nla_put_failure:
9090 genlmsg_cancel(msg, hdr);
9091 nlmsg_free(msg);
9092}
9093
6bad8766
LR		 9094void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9095 struct ieee80211_channel *channel_before,
9096 struct ieee80211_channel *channel_after)
9097{
9098 struct sk_buff *msg;
9099 void *hdr;
9100 struct nlattr *nl_freq;
9101
fd2120ca 9102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 9103 if (!msg)
9104 return;
9105
9106 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9107 if (!hdr) {
9108 nlmsg_free(msg);
9109 return;
9110 }
9111
9112 /*
9113 * Since we are applying the beacon hint to a wiphy we know its
9114 * wiphy_idx is valid
9115 */
9360ffd1
DM		 9116 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9117 goto nla_put_failure;
6bad8766
LR		 9118
9119 /* Before */
9120 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9121 if (!nl_freq)
9122 goto nla_put_failure;
9123 if (nl80211_msg_put_channel(msg, channel_before))
9124 goto nla_put_failure;
9125 nla_nest_end(msg, nl_freq);
9126
9127 /* After */
9128 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9129 if (!nl_freq)
9130 goto nla_put_failure;
9131 if (nl80211_msg_put_channel(msg, channel_after))
9132 goto nla_put_failure;
9133 nla_nest_end(msg, nl_freq);
9134
3b7b72ee 9135 genlmsg_end(msg, hdr);
6bad8766 9136
463d0183
JB		 9137 rcu_read_lock();
9138 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9139 GFP_ATOMIC);
9140 rcu_read_unlock();
6bad8766
LR		 9141
9142 return;
9143
9144nla_put_failure:
9145 genlmsg_cancel(msg, hdr);
9146 nlmsg_free(msg);
9147}
9148
9588bbd5
JM		 9149static void nl80211_send_remain_on_chan_event(
9150 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 9151 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9152 struct ieee80211_channel *chan,
9588bbd5
JM		 9153 unsigned int duration, gfp_t gfp)
9154{
9155 struct sk_buff *msg;
9156 void *hdr;
9157
9158 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9159 if (!msg)
9160 return;
9161
9162 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9163 if (!hdr) {
9164 nlmsg_free(msg);
9165 return;
9166 }
9167
9360ffd1 9168 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9169 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9170 wdev->netdev->ifindex)) ||
00f53350 9171 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1 9172 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
42d97a59
JB		 9173 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9174 NL80211_CHAN_NO_HT) ||
9360ffd1
DM		 9175 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9176 goto nla_put_failure;
9588bbd5 9177
9360ffd1
DM		 9178 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9179 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9180 goto nla_put_failure;
9588bbd5 9181
3b7b72ee 9182 genlmsg_end(msg, hdr);
9588bbd5
JM		 9183
9184 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9185 nl80211_mlme_mcgrp.id, gfp);
9186 return;
9187
9188 nla_put_failure:
9189 genlmsg_cancel(msg, hdr);
9190 nlmsg_free(msg);
9191}
9192
9193void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 9194 struct wireless_dev *wdev, u64 cookie,
9588bbd5 9195 struct ieee80211_channel *chan,
9588bbd5
JM		 9196 unsigned int duration, gfp_t gfp)
9197{
9198 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 9199 rdev, wdev, cookie, chan,
42d97a59 9200 duration, gfp);
9588bbd5
JM		 9201}
9202
9203void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 9204 struct cfg80211_registered_device *rdev,
9205 struct wireless_dev *wdev,
42d97a59 9206 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9588bbd5
JM		 9207{
9208 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
42d97a59 9209 rdev, wdev, cookie, chan, 0, gfp);
9588bbd5
JM		 9210}
9211
98b62183
JB		 9212void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
9213 struct net_device *dev, const u8 *mac_addr,
9214 struct station_info *sinfo, gfp_t gfp)
9215{
9216 struct sk_buff *msg;
9217
58050fce 9218 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 9219 if (!msg)
9220 return;
9221
66266b3a
JL		 9222 if (nl80211_send_station(msg, 0, 0, 0,
9223 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 9224 nlmsg_free(msg);
9225 return;
9226 }
9227
9228 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9229 nl80211_mlme_mcgrp.id, gfp);
9230}
9231
ec15e68b
JM		 9232void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
9233 struct net_device *dev, const u8 *mac_addr,
9234 gfp_t gfp)
9235{
9236 struct sk_buff *msg;
9237 void *hdr;
9238
58050fce 9239 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 9240 if (!msg)
9241 return;
9242
9243 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9244 if (!hdr) {
9245 nlmsg_free(msg);
9246 return;
9247 }
9248
9360ffd1
DM		 9249 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9250 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9251 goto nla_put_failure;
ec15e68b 9252
3b7b72ee 9253 genlmsg_end(msg, hdr);
ec15e68b
JM		 9254
9255 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9256 nl80211_mlme_mcgrp.id, gfp);
9257 return;
9258
9259 nla_put_failure:
9260 genlmsg_cancel(msg, hdr);
9261 nlmsg_free(msg);
9262}
9263
ed44a951
PP		 9264void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
9265 struct net_device *dev, const u8 *mac_addr,
9266 enum nl80211_connect_failed_reason reason,
9267 gfp_t gfp)
9268{
9269 struct sk_buff *msg;
9270 void *hdr;
9271
9272 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9273 if (!msg)
9274 return;
9275
9276 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9277 if (!hdr) {
9278 nlmsg_free(msg);
9279 return;
9280 }
9281
9282 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9283 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9284 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9285 goto nla_put_failure;
9286
9287 genlmsg_end(msg, hdr);
9288
9289 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9290 nl80211_mlme_mcgrp.id, gfp);
9291 return;
9292
9293 nla_put_failure:
9294 genlmsg_cancel(msg, hdr);
9295 nlmsg_free(msg);
9296}
9297
b92ab5d8
JB		 9298static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9299 const u8 *addr, gfp_t gfp)
28946da7
JB		 9300{
9301 struct wireless_dev *wdev = dev->ieee80211_ptr;
9302 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9303 struct sk_buff *msg;
9304 void *hdr;
9305 int err;
15e47304 9306 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
28946da7 9307
15e47304 9308 if (!nlportid)
28946da7
JB		 9309 return false;
9310
9311 msg = nlmsg_new(100, gfp);
9312 if (!msg)
9313 return true;
9314
b92ab5d8 9315 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 9316 if (!hdr) {
9317 nlmsg_free(msg);
9318 return true;
9319 }
9320
9360ffd1
DM		 9321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9322 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9323 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9324 goto nla_put_failure;
28946da7
JB		 9325
9326 err = genlmsg_end(msg, hdr);
9327 if (err < 0) {
9328 nlmsg_free(msg);
9329 return true;
9330 }
9331
15e47304 9332 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
28946da7
JB		 9333 return true;
9334
9335 nla_put_failure:
9336 genlmsg_cancel(msg, hdr);
9337 nlmsg_free(msg);
9338 return true;
9339}
9340
b92ab5d8
JB		 9341bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
9342{
9343 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9344 addr, gfp);
9345}
9346
9347bool nl80211_unexpected_4addr_frame(struct net_device *dev,
9348 const u8 *addr, gfp_t gfp)
9349{
9350 return __nl80211_unexpected_frame(dev,
9351 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9352 addr, gfp);
9353}
9354
2e161f78 9355int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
15e47304 9356 struct wireless_dev *wdev, u32 nlportid,
804483e9
JB		 9357 int freq, int sig_dbm,
9358 const u8 *buf, size_t len, gfp_t gfp)
026331c4 9359{
71bbc994 9360 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9361 struct sk_buff *msg;
9362 void *hdr;
026331c4
JM		 9363
9364 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9365 if (!msg)
9366 return -ENOMEM;
9367
2e161f78 9368 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 9369 if (!hdr) {
9370 nlmsg_free(msg);
9371 return -ENOMEM;
9372 }
9373
9360ffd1 9374 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9375 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9376 netdev->ifindex)) ||
9360ffd1
DM		 9377 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9378 (sig_dbm &&
9379 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9380 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9381 goto nla_put_failure;
026331c4 9382
3b7b72ee 9383 genlmsg_end(msg, hdr);
026331c4 9384
15e47304 9385 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
026331c4
JM		 9386
9387 nla_put_failure:
9388 genlmsg_cancel(msg, hdr);
9389 nlmsg_free(msg);
9390 return -ENOBUFS;
9391}
9392
2e161f78 9393void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 9394 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 9395 const u8 *buf, size_t len, bool ack,
9396 gfp_t gfp)
026331c4 9397{
71bbc994 9398 struct net_device *netdev = wdev->netdev;
026331c4
JM		 9399 struct sk_buff *msg;
9400 void *hdr;
9401
9402 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9403 if (!msg)
9404 return;
9405
2e161f78 9406 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 9407 if (!hdr) {
9408 nlmsg_free(msg);
9409 return;
9410 }
9411
9360ffd1 9412 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 9413 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9414 netdev->ifindex)) ||
9360ffd1
DM		 9415 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9416 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9417 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9418 goto nla_put_failure;
026331c4 9419
3b7b72ee 9420 genlmsg_end(msg, hdr);
026331c4
JM		 9421
9422 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9423 return;
9424
9425 nla_put_failure:
9426 genlmsg_cancel(msg, hdr);
9427 nlmsg_free(msg);
9428}
9429
d6dc1a38
JO		 9430void
9431nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
9432 struct net_device *netdev,
9433 enum nl80211_cqm_rssi_threshold_event rssi_event,
9434 gfp_t gfp)
9435{
9436 struct sk_buff *msg;
9437 struct nlattr *pinfoattr;
9438 void *hdr;
9439
58050fce 9440 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 9441 if (!msg)
9442 return;
9443
9444 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9445 if (!hdr) {
9446 nlmsg_free(msg);
9447 return;
9448 }
9449
9360ffd1
DM		 9450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9451 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9452 goto nla_put_failure;
d6dc1a38
JO		 9453
9454 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9455 if (!pinfoattr)
9456 goto nla_put_failure;
9457
9360ffd1
DM		 9458 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9459 rssi_event))
9460 goto nla_put_failure;
d6dc1a38
JO		 9461
9462 nla_nest_end(msg, pinfoattr);
9463
3b7b72ee 9464 genlmsg_end(msg, hdr);
d6dc1a38
JO		 9465
9466 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9467 nl80211_mlme_mcgrp.id, gfp);
9468 return;
9469
9470 nla_put_failure:
9471 genlmsg_cancel(msg, hdr);
9472 nlmsg_free(msg);
9473}
9474
e5497d76
JB		 9475void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9476 struct net_device *netdev, const u8 *bssid,
9477 const u8 *replay_ctr, gfp_t gfp)
9478{
9479 struct sk_buff *msg;
9480 struct nlattr *rekey_attr;
9481 void *hdr;
9482
58050fce 9483 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 9484 if (!msg)
9485 return;
9486
9487 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9488 if (!hdr) {
9489 nlmsg_free(msg);
9490 return;
9491 }
9492
9360ffd1
DM		 9493 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9494 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9495 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9496 goto nla_put_failure;
e5497d76
JB		 9497
9498 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9499 if (!rekey_attr)
9500 goto nla_put_failure;
9501
9360ffd1
DM		 9502 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
9503 NL80211_REPLAY_CTR_LEN, replay_ctr))
9504 goto nla_put_failure;
e5497d76
JB		 9505
9506 nla_nest_end(msg, rekey_attr);
9507
3b7b72ee 9508 genlmsg_end(msg, hdr);
e5497d76
JB		 9509
9510 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9511 nl80211_mlme_mcgrp.id, gfp);
9512 return;
9513
9514 nla_put_failure:
9515 genlmsg_cancel(msg, hdr);
9516 nlmsg_free(msg);
9517}
9518
c9df56b4
JM		 9519void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
9520 struct net_device *netdev, int index,
9521 const u8 *bssid, bool preauth, gfp_t gfp)
9522{
9523 struct sk_buff *msg;
9524 struct nlattr *attr;
9525 void *hdr;
9526
58050fce 9527 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 9528 if (!msg)
9529 return;
9530
9531 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
9532 if (!hdr) {
9533 nlmsg_free(msg);
9534 return;
9535 }
9536
9360ffd1
DM		 9537 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9538 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9539 goto nla_put_failure;
c9df56b4
JM		 9540
9541 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
9542 if (!attr)
9543 goto nla_put_failure;
9544
9360ffd1
DM		 9545 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
9546 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
9547 (preauth &&
9548 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
9549 goto nla_put_failure;
c9df56b4
JM		 9550
9551 nla_nest_end(msg, attr);
9552
3b7b72ee 9553 genlmsg_end(msg, hdr);
c9df56b4
JM		 9554
9555 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9556 nl80211_mlme_mcgrp.id, gfp);
9557 return;
9558
9559 nla_put_failure:
9560 genlmsg_cancel(msg, hdr);
9561 nlmsg_free(msg);
9562}
9563
5314526b 9564void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
683b6d3b
JB		 9565 struct net_device *netdev,
9566 struct cfg80211_chan_def *chandef, gfp_t gfp)
5314526b
TP		 9567{
9568 struct sk_buff *msg;
9569 void *hdr;
9570
58050fce 9571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 9572 if (!msg)
9573 return;
9574
9575 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
9576 if (!hdr) {
9577 nlmsg_free(msg);
9578 return;
9579 }
9580
683b6d3b
JB		 9581 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9582 goto nla_put_failure;
9583
9584 if (nl80211_send_chandef(msg, chandef))
7eab0f64 9585 goto nla_put_failure;
5314526b
TP		 9586
9587 genlmsg_end(msg, hdr);
9588
9589 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9590 nl80211_mlme_mcgrp.id, gfp);
9591 return;
9592
9593 nla_put_failure:
9594 genlmsg_cancel(msg, hdr);
9595 nlmsg_free(msg);
9596}
9597
84f10708
TP		 9598void
9599nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9600 struct net_device *netdev, const u8 *peer,
9601 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9602{
9603 struct sk_buff *msg;
9604 struct nlattr *pinfoattr;
9605 void *hdr;
9606
9607 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9608 if (!msg)
9609 return;
9610
9611 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9612 if (!hdr) {
9613 nlmsg_free(msg);
9614 return;
9615 }
9616
9617 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9618 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9619 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9620 goto nla_put_failure;
9621
9622 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9623 if (!pinfoattr)
9624 goto nla_put_failure;
9625
9626 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9627 goto nla_put_failure;
9628
9629 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9630 goto nla_put_failure;
9631
9632 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9633 goto nla_put_failure;
9634
9635 nla_nest_end(msg, pinfoattr);
9636
9637 genlmsg_end(msg, hdr);
9638
9639 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9640 nl80211_mlme_mcgrp.id, gfp);
9641 return;
9642
9643 nla_put_failure:
9644 genlmsg_cancel(msg, hdr);
9645 nlmsg_free(msg);
9646}
9647
04f39047
SW		 9648void
9649nl80211_radar_notify(struct cfg80211_registered_device *rdev,
9650 struct cfg80211_chan_def *chandef,
9651 enum nl80211_radar_event event,
9652 struct net_device *netdev, gfp_t gfp)
9653{
9654 struct sk_buff *msg;
9655 void *hdr;
9656
9657 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9658 if (!msg)
9659 return;
9660
9661 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
9662 if (!hdr) {
9663 nlmsg_free(msg);
9664 return;
9665 }
9666
9667 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
9668 goto nla_put_failure;
9669
9670 /* NOP and radar events don't need a netdev parameter */
9671 if (netdev) {
9672 struct wireless_dev *wdev = netdev->ieee80211_ptr;
9673
9674 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9675 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9676 goto nla_put_failure;
9677 }
9678
9679 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
9680 goto nla_put_failure;
9681
9682 if (nl80211_send_chandef(msg, chandef))
9683 goto nla_put_failure;
9684
9685 if (genlmsg_end(msg, hdr) < 0) {
9686 nlmsg_free(msg);
9687 return;
9688 }
9689
9690 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9691 nl80211_mlme_mcgrp.id, gfp);
9692 return;
9693
9694 nla_put_failure:
9695 genlmsg_cancel(msg, hdr);
9696 nlmsg_free(msg);
9697}
9698
c063dbf5
JB		 9699void
9700nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9701 struct net_device *netdev, const u8 *peer,
9702 u32 num_packets, gfp_t gfp)
9703{
9704 struct sk_buff *msg;
9705 struct nlattr *pinfoattr;
9706 void *hdr;
9707
58050fce 9708 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 9709 if (!msg)
9710 return;
9711
9712 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9713 if (!hdr) {
9714 nlmsg_free(msg);
9715 return;
9716 }
9717
9360ffd1
DM		 9718 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9719 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9720 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9721 goto nla_put_failure;
c063dbf5
JB		 9722
9723 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9724 if (!pinfoattr)
9725 goto nla_put_failure;
9726
9360ffd1
DM		 9727 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9728 goto nla_put_failure;
c063dbf5
JB		 9729
9730 nla_nest_end(msg, pinfoattr);
9731
3b7b72ee 9732 genlmsg_end(msg, hdr);
c063dbf5
JB		 9733
9734 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9735 nl80211_mlme_mcgrp.id, gfp);
9736 return;
9737
9738 nla_put_failure:
9739 genlmsg_cancel(msg, hdr);
9740 nlmsg_free(msg);
9741}
9742
7f6cf311
JB		 9743void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9744 u64 cookie, bool acked, gfp_t gfp)
9745{
9746 struct wireless_dev *wdev = dev->ieee80211_ptr;
9747 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9748 struct sk_buff *msg;
9749 void *hdr;
9750 int err;
9751
4ee3e063
BL		 9752 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9753
58050fce 9754 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
4ee3e063 9755
7f6cf311
JB		 9756 if (!msg)
9757 return;
9758
9759 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9760 if (!hdr) {
9761 nlmsg_free(msg);
9762 return;
9763 }
9764
9360ffd1
DM		 9765 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9766 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9767 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9768 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9769 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9770 goto nla_put_failure;
7f6cf311
JB		 9771
9772 err = genlmsg_end(msg, hdr);
9773 if (err < 0) {
9774 nlmsg_free(msg);
9775 return;
9776 }
9777
9778 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9779 nl80211_mlme_mcgrp.id, gfp);
9780 return;
9781
9782 nla_put_failure:
9783 genlmsg_cancel(msg, hdr);
9784 nlmsg_free(msg);
9785}
9786EXPORT_SYMBOL(cfg80211_probe_status);
9787
5e760230
JB		 9788void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9789 const u8 *frame, size_t len,
37c73b5f 9790 int freq, int sig_dbm)
5e760230
JB		 9791{
9792 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9793 struct sk_buff *msg;
9794 void *hdr;
37c73b5f 9795 struct cfg80211_beacon_registration *reg;
5e760230 9796
4ee3e063
BL		 9797 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9798
37c73b5f
BG		 9799 spin_lock_bh(&rdev->beacon_registrations_lock);
9800 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9801 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9802 if (!msg) {
9803 spin_unlock_bh(&rdev->beacon_registrations_lock);
9804 return;
9805 }
5e760230 9806
37c73b5f
BG		 9807 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9808 if (!hdr)
9809 goto nla_put_failure;
5e760230 9810
37c73b5f
BG		 9811 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9812 (freq &&
9813 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9814 (sig_dbm &&
9815 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9816 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9817 goto nla_put_failure;
5e760230 9818
37c73b5f 9819 genlmsg_end(msg, hdr);
5e760230 9820
37c73b5f
BG		 9821 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9822 }
9823 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230
JB		 9824 return;
9825
9826 nla_put_failure:
37c73b5f
BG		 9827 spin_unlock_bh(&rdev->beacon_registrations_lock);
9828 if (hdr)
9829 genlmsg_cancel(msg, hdr);
5e760230
JB		 9830 nlmsg_free(msg);
9831}
9832EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9833
cd8f7cb4
JB		 9834#ifdef CONFIG_PM
9835void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
9836 struct cfg80211_wowlan_wakeup *wakeup,
9837 gfp_t gfp)
9838{
9839 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9840 struct sk_buff *msg;
9841 void *hdr;
9842 int err, size = 200;
9843
9844 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
9845
9846 if (wakeup)
9847 size += wakeup->packet_present_len;
9848
9849 msg = nlmsg_new(size, gfp);
9850 if (!msg)
9851 return;
9852
9853 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
9854 if (!hdr)
9855 goto free_msg;
9856
9857 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9858 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9859 goto free_msg;
9860
9861 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9862 wdev->netdev->ifindex))
9863 goto free_msg;
9864
9865 if (wakeup) {
9866 struct nlattr *reasons;
9867
9868 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9869
9870 if (wakeup->disconnect &&
9871 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
9872 goto free_msg;
9873 if (wakeup->magic_pkt &&
9874 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
9875 goto free_msg;
9876 if (wakeup->gtk_rekey_failure &&
9877 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
9878 goto free_msg;
9879 if (wakeup->eap_identity_req &&
9880 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
9881 goto free_msg;
9882 if (wakeup->four_way_handshake &&
9883 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
9884 goto free_msg;
9885 if (wakeup->rfkill_release &&
9886 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
9887 goto free_msg;
9888
9889 if (wakeup->pattern_idx >= 0 &&
9890 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
9891 wakeup->pattern_idx))
9892 goto free_msg;
9893
2a0e047e
JB		 9894 if (wakeup->tcp_match)
9895 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
9896
9897 if (wakeup->tcp_connlost)
9898 nla_put_flag(msg,
9899 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
9900
9901 if (wakeup->tcp_nomoretokens)
9902 nla_put_flag(msg,
9903 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
9904
cd8f7cb4
JB		 9905 if (wakeup->packet) {
9906 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
9907 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
9908
9909 if (!wakeup->packet_80211) {
9910 pkt_attr =
9911 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
9912 len_attr =
9913 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
9914 }
9915
9916 if (wakeup->packet_len &&
9917 nla_put_u32(msg, len_attr, wakeup->packet_len))
9918 goto free_msg;
9919
9920 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
9921 wakeup->packet))
9922 goto free_msg;
9923 }
9924
9925 nla_nest_end(msg, reasons);
9926 }
9927
9928 err = genlmsg_end(msg, hdr);
9929 if (err < 0)
9930 goto free_msg;
9931
9932 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9933 nl80211_mlme_mcgrp.id, gfp);
9934 return;
9935
9936 free_msg:
9937 nlmsg_free(msg);
9938}
9939EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
9940#endif
9941
3475b094
JM		 9942void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9943 enum nl80211_tdls_operation oper,
9944 u16 reason_code, gfp_t gfp)
9945{
9946 struct wireless_dev *wdev = dev->ieee80211_ptr;
9947 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9948 struct sk_buff *msg;
9949 void *hdr;
9950 int err;
9951
9952 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9953 reason_code);
9954
9955 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9956 if (!msg)
9957 return;
9958
9959 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9960 if (!hdr) {
9961 nlmsg_free(msg);
9962 return;
9963 }
9964
9965 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9966 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9967 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9968 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9969 (reason_code > 0 &&
9970 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9971 goto nla_put_failure;
9972
9973 err = genlmsg_end(msg, hdr);
9974 if (err < 0) {
9975 nlmsg_free(msg);
9976 return;
9977 }
9978
9979 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9980 nl80211_mlme_mcgrp.id, gfp);
9981 return;
9982
9983 nla_put_failure:
9984 genlmsg_cancel(msg, hdr);
9985 nlmsg_free(msg);
9986}
9987EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9988
026331c4
JM		 9989static int nl80211_netlink_notify(struct notifier_block * nb,
9990 unsigned long state,
9991 void *_notify)
9992{
9993 struct netlink_notify *notify = _notify;
9994 struct cfg80211_registered_device *rdev;
9995 struct wireless_dev *wdev;
37c73b5f 9996 struct cfg80211_beacon_registration *reg, *tmp;
026331c4
JM		 9997
9998 if (state != NETLINK_URELEASE)
9999 return NOTIFY_DONE;
10000
10001 rcu_read_lock();
10002
5e760230 10003 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 10004 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
15e47304 10005 cfg80211_mlme_unregister_socket(wdev, notify->portid);
37c73b5f
BG		 10006
10007 spin_lock_bh(&rdev->beacon_registrations_lock);
10008 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10009 list) {
10010 if (reg->nlportid == notify->portid) {
10011 list_del(&reg->list);
10012 kfree(reg);
10013 break;
10014 }
10015 }
10016 spin_unlock_bh(&rdev->beacon_registrations_lock);
5e760230 10017 }
026331c4
JM		 10018
10019 rcu_read_unlock();
10020
10021 return NOTIFY_DONE;
10022}
10023
10024static struct notifier_block nl80211_netlink_notifier = {
10025 .notifier_call = nl80211_netlink_notify,
10026};
10027
55682965
JB		 10028/* initialisation/exit functions */
10029
10030int nl80211_init(void)
10031{
0d63cbb5 10032 int err;
55682965 10033
0d63cbb5
MM		 10034 err = genl_register_family_with_ops(&nl80211_fam,
10035 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 10036 if (err)
10037 return err;
10038
55682965
JB		 10039 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10040 if (err)
10041 goto err_out;
10042
2a519311
JB		 10043 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10044 if (err)
10045 goto err_out;
10046
73d54c9e
LR		 10047 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10048 if (err)
10049 goto err_out;
10050
6039f6d2
JM		 10051 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10052 if (err)
10053 goto err_out;
10054
aff89a9b
JB		 10055#ifdef CONFIG_NL80211_TESTMODE
10056 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10057 if (err)
10058 goto err_out;
10059#endif
10060
026331c4
JM		 10061 err = netlink_register_notifier(&nl80211_netlink_notifier);
10062 if (err)
10063 goto err_out;
10064
55682965
JB		 10065 return 0;
10066 err_out:
10067 genl_unregister_family(&nl80211_fam);
10068 return err;
10069}
10070
10071void nl80211_exit(void)
10072{
026331c4 10073 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 10074 genl_unregister_family(&nl80211_fam);
10075}
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