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nl80211: prepare for non-netdev wireless devs
[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>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
5fb628e9
JM		 26static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
89a54e48
JB		 49/* returns ERR_PTR values */
50static struct wireless_dev *
51__cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
55682965 52{
89a54e48
JB		 53 struct cfg80211_registered_device *rdev;
54 struct wireless_dev *result = NULL;
55 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
56 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
57 u64 wdev_id;
58 int wiphy_idx = -1;
59 int ifidx = -1;
55682965 60
89a54e48 61 assert_cfg80211_lock();
55682965 62
89a54e48
JB		 63 if (!have_ifidx && !have_wdev_id)
64 return ERR_PTR(-EINVAL);
55682965 65
89a54e48
JB		 66 if (have_ifidx)
67 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
68 if (have_wdev_id) {
69 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
70 wiphy_idx = wdev_id >> 32;
55682965
JB		 71 }
72
89a54e48
JB		 73 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
74 struct wireless_dev *wdev;
75
76 if (wiphy_net(&rdev->wiphy) != netns)
77 continue;
78
79 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
80 continue;
81
82 mutex_lock(&rdev->devlist_mtx);
83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
86 result = wdev;
87 break;
88 }
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
90 result = wdev;
91 break;
92 }
93 }
94 mutex_unlock(&rdev->devlist_mtx);
95
96 if (result)
97 break;
98 }
99
100 if (result)
101 return result;
102 return ERR_PTR(-ENODEV);
55682965
JB		 103}
104
a9455408 105static struct cfg80211_registered_device *
878d9ec7 106__cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
a9455408 107{
7fee4778
JB		 108 struct cfg80211_registered_device *rdev = NULL, *tmp;
109 struct net_device *netdev;
a9455408
JB		 110
111 assert_cfg80211_lock();
112
878d9ec7 113 if (!attrs[NL80211_ATTR_WIPHY] &&
89a54e48
JB		 114 !attrs[NL80211_ATTR_IFINDEX] &&
115 !attrs[NL80211_ATTR_WDEV])
7fee4778
JB		 116 return ERR_PTR(-EINVAL);
117
878d9ec7 118 if (attrs[NL80211_ATTR_WIPHY])
7fee4778 119 rdev = cfg80211_rdev_by_wiphy_idx(
878d9ec7 120 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
a9455408 121
89a54e48
JB		 122 if (attrs[NL80211_ATTR_WDEV]) {
123 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
124 struct wireless_dev *wdev;
125 bool found = false;
126
127 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
128 if (tmp) {
129 /* make sure wdev exists */
130 mutex_lock(&tmp->devlist_mtx);
131 list_for_each_entry(wdev, &tmp->wdev_list, list) {
132 if (wdev->identifier != (u32)wdev_id)
133 continue;
134 found = true;
135 break;
136 }
137 mutex_unlock(&tmp->devlist_mtx);
138
139 if (!found)
140 tmp = NULL;
141
142 if (rdev && tmp != rdev)
143 return ERR_PTR(-EINVAL);
144 rdev = tmp;
145 }
146 }
147
878d9ec7
JB		 148 if (attrs[NL80211_ATTR_IFINDEX]) {
149 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
4f7eff10 150 netdev = dev_get_by_index(netns, ifindex);
7fee4778
JB		 151 if (netdev) {
152 if (netdev->ieee80211_ptr)
153 tmp = wiphy_to_dev(
154 netdev->ieee80211_ptr->wiphy);
155 else
156 tmp = NULL;
157
158 dev_put(netdev);
159
160 /* not wireless device -- return error */
161 if (!tmp)
162 return ERR_PTR(-EINVAL);
163
164 /* mismatch -- return error */
165 if (rdev && tmp != rdev)
166 return ERR_PTR(-EINVAL);
167
168 rdev = tmp;
a9455408 169 }
a9455408 170 }
a9455408 171
4f7eff10
JB		 172 if (!rdev)
173 return ERR_PTR(-ENODEV);
a9455408 174
4f7eff10
JB		 175 if (netns != wiphy_net(&rdev->wiphy))
176 return ERR_PTR(-ENODEV);
177
178 return rdev;
a9455408
JB		 179}
180
181/*
182 * This function returns a pointer to the driver
183 * that the genl_info item that is passed refers to.
184 * If successful, it returns non-NULL and also locks
185 * the driver's mutex!
186 *
187 * This means that you need to call cfg80211_unlock_rdev()
188 * before being allowed to acquire &cfg80211_mutex!
189 *
190 * This is necessary because we need to lock the global
191 * mutex to get an item off the list safely, and then
192 * we lock the rdev mutex so it doesn't go away under us.
193 *
194 * We don't want to keep cfg80211_mutex locked
195 * for all the time in order to allow requests on
196 * other interfaces to go through at the same time.
197 *
198 * The result of this can be a PTR_ERR and hence must
199 * be checked with IS_ERR() for errors.
200 */
201static struct cfg80211_registered_device *
4f7eff10 202cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
a9455408
JB		 203{
204 struct cfg80211_registered_device *rdev;
205
206 mutex_lock(&cfg80211_mutex);
878d9ec7 207 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
a9455408
JB		 208
209 /* if it is not an error we grab the lock on
210 * it to assure it won't be going away while
211 * we operate on it */
212 if (!IS_ERR(rdev))
213 mutex_lock(&rdev->mtx);
214
215 mutex_unlock(&cfg80211_mutex);
216
217 return rdev;
218}
219
55682965 220/* policy for the attributes */
b54452b0 221static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 222 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
223 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 224 .len = 20-1 },
31888487 225 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 226 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 227 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 228 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
229 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
230 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
231 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 232 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 233
234 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
236 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 237
e007b857
EP		 238 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
239 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 240
b9454e83 241 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 242 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
243 .len = WLAN_MAX_KEY_LEN },
244 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
245 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
246 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 247 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 248 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 249
250 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
251 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
252 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
254 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
255 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 256 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
258 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
259 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
260 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 261 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 262 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 263 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6 264 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
a4f606ea 265 .len = IEEE80211_MAX_MESH_ID_LEN },
2ec600d6 266 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 267
b2e1b302
LR		 268 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
269 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
270
9f1ba906
JM		 271 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
273 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 274 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
275 .len = NL80211_MAX_SUPP_RATES },
50b12f59 276 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 277
24bdd9f4 278 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 279 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 280
6c739419 281 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 282
283 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
284 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 286 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
287 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 288
289 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
290 .len = IEEE80211_MAX_SSID_LEN },
291 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
292 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 293 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 294 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 295 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 296 [NL80211_ATTR_STA_FLAGS2] = {
297 .len = sizeof(struct nl80211_sta_flag_update),
298 },
3f77316c 299 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 300 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
301 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 302 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
303 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
304 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 305 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 306 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 307 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
308 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 309 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
310 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 311 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 312 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
313 .len = IEEE80211_MAX_DATA_LEN },
314 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 315 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 316 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 317 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 318 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 319 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 321 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 322 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
323 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 324 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 325 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 326 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 327 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 328 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 329 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 330 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 331 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 332 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 333 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
335 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
336 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 337 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 338 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 339 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 340 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
343 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
344 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 345 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 346 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
347 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 348 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 349 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
351 .len = NL80211_HT_CAPABILITY_LEN
352 },
1d9d9213 353 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 354 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 355 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
89a54e48 356 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
55682965
JB		 357};
358
e31b8213 359/* policy for the key attributes */
b54452b0 360static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 361 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 362 [NL80211_KEY_IDX] = { .type = NLA_U8 },
363 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 364 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 365 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
366 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 367 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 368 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
369};
370
371/* policy for the key default flags */
372static const struct nla_policy
373nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
374 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
375 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 376};
377
ff1b6e69
JB		 378/* policy for WoWLAN attributes */
379static const struct nla_policy
380nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
381 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
382 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
383 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
384 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 385 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
386 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
387 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
388 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 389};
390
e5497d76
JB		 391/* policy for GTK rekey offload attributes */
392static const struct nla_policy
393nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
394 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
395 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
396 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
397};
398
a1f1c21c
LC		 399static const struct nla_policy
400nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 401 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 402 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 403 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 404};
405
a043897a
HS		 406/* ifidx get helper */
407static int nl80211_get_ifidx(struct netlink_callback *cb)
408{
409 int res;
410
411 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
412 nl80211_fam.attrbuf, nl80211_fam.maxattr,
413 nl80211_policy);
414 if (res)
415 return res;
416
417 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
418 return -EINVAL;
419
420 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
421 if (!res)
422 return -EINVAL;
423 return res;
424}
425
67748893
JB		 426static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
427 struct netlink_callback *cb,
428 struct cfg80211_registered_device **rdev,
429 struct net_device **dev)
430{
431 int ifidx = cb->args[0];
432 int err;
433
434 if (!ifidx)
435 ifidx = nl80211_get_ifidx(cb);
436 if (ifidx < 0)
437 return ifidx;
438
439 cb->args[0] = ifidx;
440
441 rtnl_lock();
442
443 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
444 if (!*dev) {
445 err = -ENODEV;
446 goto out_rtnl;
447 }
448
449 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 450 if (IS_ERR(*rdev)) {
451 err = PTR_ERR(*rdev);
67748893
JB		 452 goto out_rtnl;
453 }
454
455 return 0;
456 out_rtnl:
457 rtnl_unlock();
458 return err;
459}
460
461static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
462{
463 cfg80211_unlock_rdev(rdev);
464 rtnl_unlock();
465}
466
f4a11bb0
JB		 467/* IE validation */
468static bool is_valid_ie_attr(const struct nlattr *attr)
469{
470 const u8 *pos;
471 int len;
472
473 if (!attr)
474 return true;
475
476 pos = nla_data(attr);
477 len = nla_len(attr);
478
479 while (len) {
480 u8 elemlen;
481
482 if (len < 2)
483 return false;
484 len -= 2;
485
486 elemlen = pos[1];
487 if (elemlen > len)
488 return false;
489
490 len -= elemlen;
491 pos += 2 + elemlen;
492 }
493
494 return true;
495}
496
55682965
JB		 497/* message building helper */
498static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
499 int flags, u8 cmd)
500{
501 /* since there is no private header just add the generic one */
502 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
503}
504
5dab3b8a
LR		 505static int nl80211_msg_put_channel(struct sk_buff *msg,
506 struct ieee80211_channel *chan)
507{
9360ffd1
DM		 508 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
509 chan->center_freq))
510 goto nla_put_failure;
5dab3b8a 511
9360ffd1
DM		 512 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
513 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
514 goto nla_put_failure;
515 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
516 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
517 goto nla_put_failure;
518 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
519 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
520 goto nla_put_failure;
521 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
522 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
523 goto nla_put_failure;
5dab3b8a 524
9360ffd1
DM		 525 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
526 DBM_TO_MBM(chan->max_power)))
527 goto nla_put_failure;
5dab3b8a
LR		 528
529 return 0;
530
531 nla_put_failure:
532 return -ENOBUFS;
533}
534
55682965
JB		 535/* netlink command implementations */
536
b9454e83
JB		 537struct key_parse {
538 struct key_params p;
539 int idx;
e31b8213 540 int type;
b9454e83 541 bool def, defmgmt;
dbd2fd65 542 bool def_uni, def_multi;
b9454e83
JB		 543};
544
545static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
546{
547 struct nlattr *tb[NL80211_KEY_MAX + 1];
548 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
549 nl80211_key_policy);
550 if (err)
551 return err;
552
553 k->def = !!tb[NL80211_KEY_DEFAULT];
554 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
555
dbd2fd65
JB		 556 if (k->def) {
557 k->def_uni = true;
558 k->def_multi = true;
559 }
560 if (k->defmgmt)
561 k->def_multi = true;
562
b9454e83
JB		 563 if (tb[NL80211_KEY_IDX])
564 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
565
566 if (tb[NL80211_KEY_DATA]) {
567 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
568 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
569 }
570
571 if (tb[NL80211_KEY_SEQ]) {
572 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
573 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
574 }
575
576 if (tb[NL80211_KEY_CIPHER])
577 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
578
e31b8213
JB		 579 if (tb[NL80211_KEY_TYPE]) {
580 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
581 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
582 return -EINVAL;
583 }
584
dbd2fd65
JB		 585 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
586 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 587 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
588 tb[NL80211_KEY_DEFAULT_TYPES],
589 nl80211_key_default_policy);
dbd2fd65
JB		 590 if (err)
591 return err;
592
593 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
594 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
595 }
596
b9454e83
JB		 597 return 0;
598}
599
600static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
601{
602 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
603 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
604 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
605 }
606
607 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
608 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
609 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
610 }
611
612 if (info->attrs[NL80211_ATTR_KEY_IDX])
613 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
614
615 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
616 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
617
618 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
619 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
620
dbd2fd65
JB		 621 if (k->def) {
622 k->def_uni = true;
623 k->def_multi = true;
624 }
625 if (k->defmgmt)
626 k->def_multi = true;
627
e31b8213
JB		 628 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
629 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
630 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
631 return -EINVAL;
632 }
633
dbd2fd65
JB		 634 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
635 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
636 int err = nla_parse_nested(
637 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
638 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
639 nl80211_key_default_policy);
640 if (err)
641 return err;
642
643 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
644 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
645 }
646
b9454e83
JB		 647 return 0;
648}
649
650static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
651{
652 int err;
653
654 memset(k, 0, sizeof(*k));
655 k->idx = -1;
e31b8213 656 k->type = -1;
b9454e83
JB		 657
658 if (info->attrs[NL80211_ATTR_KEY])
659 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
660 else
661 err = nl80211_parse_key_old(info, k);
662
663 if (err)
664 return err;
665
666 if (k->def && k->defmgmt)
667 return -EINVAL;
668
dbd2fd65
JB		 669 if (k->defmgmt) {
670 if (k->def_uni || !k->def_multi)
671 return -EINVAL;
672 }
673
b9454e83
JB		 674 if (k->idx != -1) {
675 if (k->defmgmt) {
676 if (k->idx < 4 || k->idx > 5)
677 return -EINVAL;
678 } else if (k->def) {
679 if (k->idx < 0 || k->idx > 3)
680 return -EINVAL;
681 } else {
682 if (k->idx < 0 || k->idx > 5)
683 return -EINVAL;
684 }
685 }
686
687 return 0;
688}
689
fffd0934
JB		 690static struct cfg80211_cached_keys *
691nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
692 struct nlattr *keys)
693{
694 struct key_parse parse;
695 struct nlattr *key;
696 struct cfg80211_cached_keys *result;
697 int rem, err, def = 0;
698
699 result = kzalloc(sizeof(*result), GFP_KERNEL);
700 if (!result)
701 return ERR_PTR(-ENOMEM);
702
703 result->def = -1;
704 result->defmgmt = -1;
705
706 nla_for_each_nested(key, keys, rem) {
707 memset(&parse, 0, sizeof(parse));
708 parse.idx = -1;
709
710 err = nl80211_parse_key_new(key, &parse);
711 if (err)
712 goto error;
713 err = -EINVAL;
714 if (!parse.p.key)
715 goto error;
716 if (parse.idx < 0 || parse.idx > 4)
717 goto error;
718 if (parse.def) {
719 if (def)
720 goto error;
721 def = 1;
722 result->def = parse.idx;
dbd2fd65
JB		 723 if (!parse.def_uni || !parse.def_multi)
724 goto error;
fffd0934
JB		 725 } else if (parse.defmgmt)
726 goto error;
727 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 728 parse.idx, false, NULL);
fffd0934
JB		 729 if (err)
730 goto error;
731 result->params[parse.idx].cipher = parse.p.cipher;
732 result->params[parse.idx].key_len = parse.p.key_len;
733 result->params[parse.idx].key = result->data[parse.idx];
734 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
735 }
736
737 return result;
738 error:
739 kfree(result);
740 return ERR_PTR(err);
741}
742
743static int nl80211_key_allowed(struct wireless_dev *wdev)
744{
745 ASSERT_WDEV_LOCK(wdev);
746
fffd0934
JB		 747 switch (wdev->iftype) {
748 case NL80211_IFTYPE_AP:
749 case NL80211_IFTYPE_AP_VLAN:
074ac8df 750 case NL80211_IFTYPE_P2P_GO:
ff973af7 751 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 752 break;
753 case NL80211_IFTYPE_ADHOC:
754 if (!wdev->current_bss)
755 return -ENOLINK;
756 break;
757 case NL80211_IFTYPE_STATION:
074ac8df 758 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 759 if (wdev->sme_state != CFG80211_SME_CONNECTED)
760 return -ENOLINK;
761 break;
762 default:
763 return -EINVAL;
764 }
765
766 return 0;
767}
768
7527a782
JB		 769static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
770{
771 struct nlattr *nl_modes = nla_nest_start(msg, attr);
772 int i;
773
774 if (!nl_modes)
775 goto nla_put_failure;
776
777 i = 0;
778 while (ifmodes) {
9360ffd1
DM		 779 if ((ifmodes & 1) && nla_put_flag(msg, i))
780 goto nla_put_failure;
7527a782
JB		 781 ifmodes >>= 1;
782 i++;
783 }
784
785 nla_nest_end(msg, nl_modes);
786 return 0;
787
788nla_put_failure:
789 return -ENOBUFS;
790}
791
792static int nl80211_put_iface_combinations(struct wiphy *wiphy,
793 struct sk_buff *msg)
794{
795 struct nlattr *nl_combis;
796 int i, j;
797
798 nl_combis = nla_nest_start(msg,
799 NL80211_ATTR_INTERFACE_COMBINATIONS);
800 if (!nl_combis)
801 goto nla_put_failure;
802
803 for (i = 0; i < wiphy->n_iface_combinations; i++) {
804 const struct ieee80211_iface_combination *c;
805 struct nlattr *nl_combi, *nl_limits;
806
807 c = &wiphy->iface_combinations[i];
808
809 nl_combi = nla_nest_start(msg, i + 1);
810 if (!nl_combi)
811 goto nla_put_failure;
812
813 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
814 if (!nl_limits)
815 goto nla_put_failure;
816
817 for (j = 0; j < c->n_limits; j++) {
818 struct nlattr *nl_limit;
819
820 nl_limit = nla_nest_start(msg, j + 1);
821 if (!nl_limit)
822 goto nla_put_failure;
9360ffd1
DM		 823 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
824 c->limits[j].max))
825 goto nla_put_failure;
7527a782
JB		 826 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
827 c->limits[j].types))
828 goto nla_put_failure;
829 nla_nest_end(msg, nl_limit);
830 }
831
832 nla_nest_end(msg, nl_limits);
833
9360ffd1
DM		 834 if (c->beacon_int_infra_match &&
835 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
836 goto nla_put_failure;
837 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
838 c->num_different_channels) ||
839 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
840 c->max_interfaces))
841 goto nla_put_failure;
7527a782
JB		 842
843 nla_nest_end(msg, nl_combi);
844 }
845
846 nla_nest_end(msg, nl_combis);
847
848 return 0;
849nla_put_failure:
850 return -ENOBUFS;
851}
852
55682965
JB		 853static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
854 struct cfg80211_registered_device *dev)
855{
856 void *hdr;
ee688b00
JB		 857 struct nlattr *nl_bands, *nl_band;
858 struct nlattr *nl_freqs, *nl_freq;
859 struct nlattr *nl_rates, *nl_rate;
8fdc621d 860 struct nlattr *nl_cmds;
ee688b00
JB		 861 enum ieee80211_band band;
862 struct ieee80211_channel *chan;
863 struct ieee80211_rate *rate;
864 int i;
2e161f78
JB		 865 const struct ieee80211_txrx_stypes *mgmt_stypes =
866 dev->wiphy.mgmt_stypes;
55682965
JB		 867
868 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
869 if (!hdr)
870 return -1;
871
9360ffd1
DM		 872 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
873 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
874 nla_put_u32(msg, NL80211_ATTR_GENERATION,
875 cfg80211_rdev_list_generation) ||
876 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
877 dev->wiphy.retry_short) ||
878 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
879 dev->wiphy.retry_long) ||
880 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
881 dev->wiphy.frag_threshold) ||
882 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
883 dev->wiphy.rts_threshold) ||
884 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
885 dev->wiphy.coverage_class) ||
886 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
887 dev->wiphy.max_scan_ssids) ||
888 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
889 dev->wiphy.max_sched_scan_ssids) ||
890 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
891 dev->wiphy.max_scan_ie_len) ||
892 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
893 dev->wiphy.max_sched_scan_ie_len) ||
894 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
895 dev->wiphy.max_match_sets))
896 goto nla_put_failure;
897
898 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
899 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
900 goto nla_put_failure;
901 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
902 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
903 goto nla_put_failure;
904 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
905 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
906 goto nla_put_failure;
907 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
908 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
909 goto nla_put_failure;
910 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
911 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
912 goto nla_put_failure;
913 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
914 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
915 goto nla_put_failure;
916
917 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
918 sizeof(u32) * dev->wiphy.n_cipher_suites,
919 dev->wiphy.cipher_suites))
920 goto nla_put_failure;
921
922 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
923 dev->wiphy.max_num_pmkids))
924 goto nla_put_failure;
925
926 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
927 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
928 goto nla_put_failure;
929
930 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
931 dev->wiphy.available_antennas_tx) ||
932 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
933 dev->wiphy.available_antennas_rx))
934 goto nla_put_failure;
935
936 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
937 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
938 dev->wiphy.probe_resp_offload))
939 goto nla_put_failure;
87bbbe22 940
7f531e03
BR		 941 if ((dev->wiphy.available_antennas_tx ||
942 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 943 u32 tx_ant = 0, rx_ant = 0;
944 int res;
945 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
946 if (!res) {
9360ffd1
DM		 947 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
948 tx_ant) ||
949 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
950 rx_ant))
951 goto nla_put_failure;
afe0cbf8
BR		 952 }
953 }
954
7527a782
JB		 955 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
956 dev->wiphy.interface_modes))
f59ac048
LR		 957 goto nla_put_failure;
958
ee688b00
JB		 959 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
960 if (!nl_bands)
961 goto nla_put_failure;
962
963 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
964 if (!dev->wiphy.bands[band])
965 continue;
966
967 nl_band = nla_nest_start(msg, band);
968 if (!nl_band)
969 goto nla_put_failure;
970
d51626df 971 /* add HT info */
9360ffd1
DM		 972 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
973 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
974 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
975 &dev->wiphy.bands[band]->ht_cap.mcs) ||
976 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
977 dev->wiphy.bands[band]->ht_cap.cap) ||
978 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
979 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
980 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
981 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
982 goto nla_put_failure;
d51626df 983
bf0c111e
MP		 984 /* add VHT info */
985 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
986 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
987 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
988 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
989 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
990 dev->wiphy.bands[band]->vht_cap.cap)))
991 goto nla_put_failure;
992
ee688b00
JB		 993 /* add frequencies */
994 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
995 if (!nl_freqs)
996 goto nla_put_failure;
997
998 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
999 nl_freq = nla_nest_start(msg, i);
1000 if (!nl_freq)
1001 goto nla_put_failure;
1002
1003 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 1004
1005 if (nl80211_msg_put_channel(msg, chan))
1006 goto nla_put_failure;
e2f367f2 1007
ee688b00
JB		 1008 nla_nest_end(msg, nl_freq);
1009 }
1010
1011 nla_nest_end(msg, nl_freqs);
1012
1013 /* add bitrates */
1014 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1015 if (!nl_rates)
1016 goto nla_put_failure;
1017
1018 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1019 nl_rate = nla_nest_start(msg, i);
1020 if (!nl_rate)
1021 goto nla_put_failure;
1022
1023 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 1024 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1025 rate->bitrate))
1026 goto nla_put_failure;
1027 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1028 nla_put_flag(msg,
1029 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1030 goto nla_put_failure;
ee688b00
JB		 1031
1032 nla_nest_end(msg, nl_rate);
1033 }
1034
1035 nla_nest_end(msg, nl_rates);
1036
1037 nla_nest_end(msg, nl_band);
1038 }
1039 nla_nest_end(msg, nl_bands);
1040
8fdc621d
JB		 1041 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1042 if (!nl_cmds)
1043 goto nla_put_failure;
1044
1045 i = 0;
1046#define CMD(op, n) \
1047 do { \
1048 if (dev->ops->op) { \
1049 i++; \
9360ffd1
DM		 1050 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1051 goto nla_put_failure; \
8fdc621d
JB		 1052 } \
1053 } while (0)
1054
1055 CMD(add_virtual_intf, NEW_INTERFACE);
1056 CMD(change_virtual_intf, SET_INTERFACE);
1057 CMD(add_key, NEW_KEY);
8860020e 1058 CMD(start_ap, START_AP);
8fdc621d
JB		 1059 CMD(add_station, NEW_STATION);
1060 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1061 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1062 CMD(change_bss, SET_BSS);
636a5d36
JM		 1063 CMD(auth, AUTHENTICATE);
1064 CMD(assoc, ASSOCIATE);
1065 CMD(deauth, DEAUTHENTICATE);
1066 CMD(disassoc, DISASSOCIATE);
04a773ad 1067 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1068 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1069 CMD(set_pmksa, SET_PMKSA);
1070 CMD(del_pmksa, DEL_PMKSA);
1071 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1072 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1073 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1074 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1075 CMD(mgmt_tx, FRAME);
f7ca38df 1076 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1077 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1078 i++;
9360ffd1
DM		 1079 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1080 goto nla_put_failure;
463d0183 1081 }
e8c9bd5b 1082 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1083 dev->ops->join_mesh) {
aa430da4
JB		 1084 i++;
1085 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1086 goto nla_put_failure;
1087 }
e8347eba 1088 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1089 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1090 CMD(tdls_mgmt, TDLS_MGMT);
1091 CMD(tdls_oper, TDLS_OPER);
1092 }
807f8a8c
LC		 1093 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1094 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1095 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1096 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1097 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1098 i++;
9360ffd1
DM		 1099 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1100 goto nla_put_failure;
5e760230 1101 }
8fdc621d 1102
4745fc09
KV		 1103#ifdef CONFIG_NL80211_TESTMODE
1104 CMD(testmode_cmd, TESTMODE);
1105#endif
1106
8fdc621d 1107#undef CMD
b23aa676 1108
6829c878 1109 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1110 i++;
9360ffd1
DM		 1111 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1112 goto nla_put_failure;
b23aa676
SO		 1113 }
1114
6829c878 1115 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1116 i++;
9360ffd1
DM		 1117 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1118 goto nla_put_failure;
b23aa676
SO		 1119 }
1120
8fdc621d
JB		 1121 nla_nest_end(msg, nl_cmds);
1122
7c4ef712 1123 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1124 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1125 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1126 dev->wiphy.max_remain_on_channel_duration))
1127 goto nla_put_failure;
a293911d 1128
9360ffd1
DM		 1129 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1130 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1131 goto nla_put_failure;
f7ca38df 1132
2e161f78
JB		 1133 if (mgmt_stypes) {
1134 u16 stypes;
1135 struct nlattr *nl_ftypes, *nl_ifs;
1136 enum nl80211_iftype ift;
1137
1138 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1139 if (!nl_ifs)
1140 goto nla_put_failure;
1141
1142 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1143 nl_ftypes = nla_nest_start(msg, ift);
1144 if (!nl_ftypes)
1145 goto nla_put_failure;
1146 i = 0;
1147 stypes = mgmt_stypes[ift].tx;
1148 while (stypes) {
9360ffd1
DM		 1149 if ((stypes & 1) &&
1150 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1151 (i << 4) | IEEE80211_FTYPE_MGMT))
1152 goto nla_put_failure;
2e161f78
JB		 1153 stypes >>= 1;
1154 i++;
1155 }
1156 nla_nest_end(msg, nl_ftypes);
1157 }
1158
74b70a4e
JB		 1159 nla_nest_end(msg, nl_ifs);
1160
2e161f78
JB		 1161 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1162 if (!nl_ifs)
1163 goto nla_put_failure;
1164
1165 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1166 nl_ftypes = nla_nest_start(msg, ift);
1167 if (!nl_ftypes)
1168 goto nla_put_failure;
1169 i = 0;
1170 stypes = mgmt_stypes[ift].rx;
1171 while (stypes) {
9360ffd1
DM		 1172 if ((stypes & 1) &&
1173 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1174 (i << 4) | IEEE80211_FTYPE_MGMT))
1175 goto nla_put_failure;
2e161f78
JB		 1176 stypes >>= 1;
1177 i++;
1178 }
1179 nla_nest_end(msg, nl_ftypes);
1180 }
1181 nla_nest_end(msg, nl_ifs);
1182 }
1183
dfb89c56 1184#ifdef CONFIG_PM
ff1b6e69
JB		 1185 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1186 struct nlattr *nl_wowlan;
1187
1188 nl_wowlan = nla_nest_start(msg,
1189 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1190 if (!nl_wowlan)
1191 goto nla_put_failure;
1192
9360ffd1
DM		 1193 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1194 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1195 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1196 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1197 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1198 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1199 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1200 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1201 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1202 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1203 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1204 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1205 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1206 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1207 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1208 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1209 goto nla_put_failure;
ff1b6e69
JB		 1210 if (dev->wiphy.wowlan.n_patterns) {
1211 struct nl80211_wowlan_pattern_support pat = {
1212 .max_patterns = dev->wiphy.wowlan.n_patterns,
1213 .min_pattern_len =
1214 dev->wiphy.wowlan.pattern_min_len,
1215 .max_pattern_len =
1216 dev->wiphy.wowlan.pattern_max_len,
1217 };
9360ffd1
DM		 1218 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1219 sizeof(pat), &pat))
1220 goto nla_put_failure;
ff1b6e69
JB		 1221 }
1222
1223 nla_nest_end(msg, nl_wowlan);
1224 }
dfb89c56 1225#endif
ff1b6e69 1226
7527a782
JB		 1227 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1228 dev->wiphy.software_iftypes))
1229 goto nla_put_failure;
1230
1231 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1232 goto nla_put_failure;
1233
9360ffd1
DM		 1234 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1235 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1236 dev->wiphy.ap_sme_capa))
1237 goto nla_put_failure;
562a7480 1238
9360ffd1
DM		 1239 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1240 dev->wiphy.features))
1241 goto nla_put_failure;
1f074bd8 1242
9360ffd1
DM		 1243 if (dev->wiphy.ht_capa_mod_mask &&
1244 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1245 sizeof(*dev->wiphy.ht_capa_mod_mask),
1246 dev->wiphy.ht_capa_mod_mask))
1247 goto nla_put_failure;
7e7c8926 1248
55682965
JB		 1249 return genlmsg_end(msg, hdr);
1250
1251 nla_put_failure:
bc3ed28c
TG		 1252 genlmsg_cancel(msg, hdr);
1253 return -EMSGSIZE;
55682965
JB		 1254}
1255
1256static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1257{
1258 int idx = 0;
1259 int start = cb->args[0];
1260 struct cfg80211_registered_device *dev;
1261
a1794390 1262 mutex_lock(&cfg80211_mutex);
79c97e97 1263 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1264 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1265 continue;
b4637271 1266 if (++idx <= start)
55682965
JB		 1267 continue;
1268 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1269 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1270 dev) < 0) {
1271 idx--;
55682965 1272 break;
b4637271 1273 }
55682965 1274 }
a1794390 1275 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1276
1277 cb->args[0] = idx;
1278
1279 return skb->len;
1280}
1281
1282static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1283{
1284 struct sk_buff *msg;
4c476991 1285 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1286
fd2120ca 1287 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1288 if (!msg)
4c476991 1289 return -ENOMEM;
55682965 1290
4c476991
JB		 1291 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1292 nlmsg_free(msg);
1293 return -ENOBUFS;
1294 }
55682965 1295
134e6375 1296 return genlmsg_reply(msg, info);
55682965
JB		 1297}
1298
31888487
JM		 1299static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1300 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1301 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1302 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1303 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1304 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1305};
1306
1307static int parse_txq_params(struct nlattr *tb[],
1308 struct ieee80211_txq_params *txq_params)
1309{
a3304b0a 1310 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1311 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1312 !tb[NL80211_TXQ_ATTR_AIFS])
1313 return -EINVAL;
1314
a3304b0a 1315 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1316 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1317 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1318 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1319 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1320
a3304b0a
JB		 1321 if (txq_params->ac >= NL80211_NUM_ACS)
1322 return -EINVAL;
1323
31888487
JM		 1324 return 0;
1325}
1326
f444de05
JB		 1327static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1328{
1329 /*
cc1d2806
JB		 1330 * You can only set the channel explicitly for WDS interfaces,
1331 * all others have their channel managed via their respective
1332 * "establish a connection" command (connect, join, ...)
1333 *
1334 * For AP/GO and mesh mode, the channel can be set with the
1335 * channel userspace API, but is only stored and passed to the
1336 * low-level driver when the AP starts or the mesh is joined.
1337 * This is for backward compatibility, userspace can also give
1338 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1339 *
1340 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1341 * whatever else is going on, so they have their own special
1342 * operation to set the monitor channel if possible.
f444de05
JB		 1343 */
1344 return !wdev ||
1345 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1346 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1347 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1348 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1349}
1350
cd6c6598
JB		 1351static bool nl80211_valid_channel_type(struct genl_info *info,
1352 enum nl80211_channel_type *channel_type)
1353{
1354 enum nl80211_channel_type tmp;
1355
1356 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1357 return false;
1358
1359 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1360 if (tmp != NL80211_CHAN_NO_HT &&
1361 tmp != NL80211_CHAN_HT20 &&
1362 tmp != NL80211_CHAN_HT40PLUS &&
1363 tmp != NL80211_CHAN_HT40MINUS)
1364 return false;
1365
1366 if (channel_type)
1367 *channel_type = tmp;
1368
1369 return true;
1370}
1371
f444de05
JB		 1372static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1373 struct wireless_dev *wdev,
1374 struct genl_info *info)
1375{
aa430da4 1376 struct ieee80211_channel *channel;
f444de05
JB		 1377 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1378 u32 freq;
1379 int result;
e8c9bd5b
JB		 1380 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1381
1382 if (wdev)
1383 iftype = wdev->iftype;
f444de05
JB		 1384
1385 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1386 return -EINVAL;
1387
1388 if (!nl80211_can_set_dev_channel(wdev))
1389 return -EOPNOTSUPP;
1390
cd6c6598
JB		 1391 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1392 !nl80211_valid_channel_type(info, &channel_type))
1393 return -EINVAL;
f444de05
JB		 1394
1395 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1396
1397 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1398 switch (iftype) {
aa430da4
JB		 1399 case NL80211_IFTYPE_AP:
1400 case NL80211_IFTYPE_P2P_GO:
1401 if (wdev->beacon_interval) {
1402 result = -EBUSY;
1403 break;
1404 }
1405 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1406 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1407 channel,
1408 channel_type)) {
1409 result = -EINVAL;
1410 break;
1411 }
1412 wdev->preset_chan = channel;
1413 wdev->preset_chantype = channel_type;
1414 result = 0;
1415 break;
cc1d2806
JB		 1416 case NL80211_IFTYPE_MESH_POINT:
1417 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1418 break;
e8c9bd5b
JB		 1419 case NL80211_IFTYPE_MONITOR:
1420 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1421 break;
aa430da4 1422 default:
e8c9bd5b 1423 result = -EINVAL;
f444de05
JB		 1424 }
1425 mutex_unlock(&rdev->devlist_mtx);
1426
1427 return result;
1428}
1429
1430static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1431{
4c476991
JB		 1432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1433 struct net_device *netdev = info->user_ptr[1];
f444de05 1434
4c476991 1435 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1436}
1437
e8347eba
BJ		 1438static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1439{
43b19952
JB		 1440 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1441 struct net_device *dev = info->user_ptr[1];
1442 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1443 const u8 *bssid;
e8347eba
BJ		 1444
1445 if (!info->attrs[NL80211_ATTR_MAC])
1446 return -EINVAL;
1447
43b19952
JB		 1448 if (netif_running(dev))
1449 return -EBUSY;
e8347eba 1450
43b19952
JB		 1451 if (!rdev->ops->set_wds_peer)
1452 return -EOPNOTSUPP;
e8347eba 1453
43b19952
JB		 1454 if (wdev->iftype != NL80211_IFTYPE_WDS)
1455 return -EOPNOTSUPP;
e8347eba
BJ		 1456
1457 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1458 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1459}
1460
1461
55682965
JB		 1462static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1463{
1464 struct cfg80211_registered_device *rdev;
f444de05
JB		 1465 struct net_device *netdev = NULL;
1466 struct wireless_dev *wdev;
a1e567c8 1467 int result = 0, rem_txq_params = 0;
31888487 1468 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1469 u32 changed;
1470 u8 retry_short = 0, retry_long = 0;
1471 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1472 u8 coverage_class = 0;
55682965 1473
f444de05
JB		 1474 /*
1475 * Try to find the wiphy and netdev. Normally this
1476 * function shouldn't need the netdev, but this is
1477 * done for backward compatibility -- previously
1478 * setting the channel was done per wiphy, but now
1479 * it is per netdev. Previous userland like hostapd
1480 * also passed a netdev to set_wiphy, so that it is
1481 * possible to let that go to the right netdev!
1482 */
4bbf4d56
JB		 1483 mutex_lock(&cfg80211_mutex);
1484
f444de05
JB		 1485 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1486 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1487
1488 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1489 if (netdev && netdev->ieee80211_ptr) {
1490 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1491 mutex_lock(&rdev->mtx);
1492 } else
1493 netdev = NULL;
4bbf4d56
JB		 1494 }
1495
f444de05 1496 if (!netdev) {
878d9ec7
JB		 1497 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1498 info->attrs);
f444de05
JB		 1499 if (IS_ERR(rdev)) {
1500 mutex_unlock(&cfg80211_mutex);
4c476991 1501 return PTR_ERR(rdev);
f444de05
JB		 1502 }
1503 wdev = NULL;
1504 netdev = NULL;
1505 result = 0;
1506
1507 mutex_lock(&rdev->mtx);
cc1d2806 1508 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
f444de05
JB		 1509 wdev = netdev->ieee80211_ptr;
1510 else
1511 wdev = NULL;
1512
1513 /*
1514 * end workaround code, by now the rdev is available
1515 * and locked, and wdev may or may not be NULL.
1516 */
4bbf4d56
JB		 1517
1518 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1519 result = cfg80211_dev_rename(
1520 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1521
1522 mutex_unlock(&cfg80211_mutex);
1523
1524 if (result)
1525 goto bad_res;
31888487
JM		 1526
1527 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1528 struct ieee80211_txq_params txq_params;
1529 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1530
1531 if (!rdev->ops->set_txq_params) {
1532 result = -EOPNOTSUPP;
1533 goto bad_res;
1534 }
1535
f70f01c2
EP		 1536 if (!netdev) {
1537 result = -EINVAL;
1538 goto bad_res;
1539 }
1540
133a3ff2
JB		 1541 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1542 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1543 result = -EINVAL;
1544 goto bad_res;
1545 }
1546
2b5f8b0b
JB		 1547 if (!netif_running(netdev)) {
1548 result = -ENETDOWN;
1549 goto bad_res;
1550 }
1551
31888487
JM		 1552 nla_for_each_nested(nl_txq_params,
1553 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1554 rem_txq_params) {
1555 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1556 nla_data(nl_txq_params),
1557 nla_len(nl_txq_params),
1558 txq_params_policy);
1559 result = parse_txq_params(tb, &txq_params);
1560 if (result)
1561 goto bad_res;
1562
1563 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1564 netdev,
31888487
JM		 1565 &txq_params);
1566 if (result)
1567 goto bad_res;
1568 }
1569 }
55682965 1570
72bdcf34 1571 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1572 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1573 if (result)
1574 goto bad_res;
1575 }
1576
98d2ff8b
JO		 1577 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1578 enum nl80211_tx_power_setting type;
1579 int idx, mbm = 0;
1580
1581 if (!rdev->ops->set_tx_power) {
60ea385f 1582 result = -EOPNOTSUPP;
98d2ff8b
JO		 1583 goto bad_res;
1584 }
1585
1586 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1587 type = nla_get_u32(info->attrs[idx]);
1588
1589 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1590 (type != NL80211_TX_POWER_AUTOMATIC)) {
1591 result = -EINVAL;
1592 goto bad_res;
1593 }
1594
1595 if (type != NL80211_TX_POWER_AUTOMATIC) {
1596 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1597 mbm = nla_get_u32(info->attrs[idx]);
1598 }
1599
1600 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1601 if (result)
1602 goto bad_res;
1603 }
1604
afe0cbf8
BR		 1605 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1606 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1607 u32 tx_ant, rx_ant;
7f531e03
BR		 1608 if ((!rdev->wiphy.available_antennas_tx &&
1609 !rdev->wiphy.available_antennas_rx) ||
1610 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1611 result = -EOPNOTSUPP;
1612 goto bad_res;
1613 }
1614
1615 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1616 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1617
a7ffac95 1618 /* reject antenna configurations which don't match the
7f531e03
BR		 1619 * available antenna masks, except for the "all" mask */
1620 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1621 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1622 result = -EINVAL;
1623 goto bad_res;
1624 }
1625
7f531e03
BR		 1626 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1627 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1628
afe0cbf8
BR		 1629 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1630 if (result)
1631 goto bad_res;
1632 }
1633
b9a5f8ca
JM		 1634 changed = 0;
1635
1636 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1637 retry_short = nla_get_u8(
1638 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1639 if (retry_short == 0) {
1640 result = -EINVAL;
1641 goto bad_res;
1642 }
1643 changed |= WIPHY_PARAM_RETRY_SHORT;
1644 }
1645
1646 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1647 retry_long = nla_get_u8(
1648 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1649 if (retry_long == 0) {
1650 result = -EINVAL;
1651 goto bad_res;
1652 }
1653 changed |= WIPHY_PARAM_RETRY_LONG;
1654 }
1655
1656 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1657 frag_threshold = nla_get_u32(
1658 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1659 if (frag_threshold < 256) {
1660 result = -EINVAL;
1661 goto bad_res;
1662 }
1663 if (frag_threshold != (u32) -1) {
1664 /*
1665 * Fragments (apart from the last one) are required to
1666 * have even length. Make the fragmentation code
1667 * simpler by stripping LSB should someone try to use
1668 * odd threshold value.
1669 */
1670 frag_threshold &= ~0x1;
1671 }
1672 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1673 }
1674
1675 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1676 rts_threshold = nla_get_u32(
1677 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1678 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1679 }
1680
81077e82
LT		 1681 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1682 coverage_class = nla_get_u8(
1683 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1684 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1685 }
1686
b9a5f8ca
JM		 1687 if (changed) {
1688 u8 old_retry_short, old_retry_long;
1689 u32 old_frag_threshold, old_rts_threshold;
81077e82 1690 u8 old_coverage_class;
b9a5f8ca
JM		 1691
1692 if (!rdev->ops->set_wiphy_params) {
1693 result = -EOPNOTSUPP;
1694 goto bad_res;
1695 }
1696
1697 old_retry_short = rdev->wiphy.retry_short;
1698 old_retry_long = rdev->wiphy.retry_long;
1699 old_frag_threshold = rdev->wiphy.frag_threshold;
1700 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1701 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1702
1703 if (changed & WIPHY_PARAM_RETRY_SHORT)
1704 rdev->wiphy.retry_short = retry_short;
1705 if (changed & WIPHY_PARAM_RETRY_LONG)
1706 rdev->wiphy.retry_long = retry_long;
1707 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1708 rdev->wiphy.frag_threshold = frag_threshold;
1709 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1710 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1711 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1712 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1713
1714 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1715 if (result) {
1716 rdev->wiphy.retry_short = old_retry_short;
1717 rdev->wiphy.retry_long = old_retry_long;
1718 rdev->wiphy.frag_threshold = old_frag_threshold;
1719 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1720 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1721 }
1722 }
72bdcf34 1723
306d6112 1724 bad_res:
4bbf4d56 1725 mutex_unlock(&rdev->mtx);
f444de05
JB		 1726 if (netdev)
1727 dev_put(netdev);
55682965
JB		 1728 return result;
1729}
1730
1731
1732static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1733 struct cfg80211_registered_device *rdev,
55682965
JB		 1734 struct net_device *dev)
1735{
1736 void *hdr;
89a54e48
JB		 1737 u64 wdev_id = (u64)dev->ieee80211_ptr->identifier |
1738 ((u64)rdev->wiphy_idx << 32);
55682965
JB		 1739
1740 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1741 if (!hdr)
1742 return -1;
1743
9360ffd1
DM		 1744 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1745 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1746 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1747 nla_put_u32(msg, NL80211_ATTR_IFTYPE,
1748 dev->ieee80211_ptr->iftype) ||
89a54e48 1749 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id) ||
9360ffd1
DM		 1750 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1751 rdev->devlist_generation ^
1752 (cfg80211_rdev_list_generation << 2)))
1753 goto nla_put_failure;
f5ea9120 1754
2e165b81
MK		 1755 if (rdev->monitor_channel) {
1756 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1757 rdev->monitor_channel->center_freq) ||
1758 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1759 rdev->monitor_channel_type))
59ef43e6 1760 goto nla_put_failure;
d91df0e3
PF		 1761 }
1762
55682965
JB		 1763 return genlmsg_end(msg, hdr);
1764
1765 nla_put_failure:
bc3ed28c
TG		 1766 genlmsg_cancel(msg, hdr);
1767 return -EMSGSIZE;
55682965
JB		 1768}
1769
1770static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1771{
1772 int wp_idx = 0;
1773 int if_idx = 0;
1774 int wp_start = cb->args[0];
1775 int if_start = cb->args[1];
f5ea9120 1776 struct cfg80211_registered_device *rdev;
55682965
JB		 1777 struct wireless_dev *wdev;
1778
a1794390 1779 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1780 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1781 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1782 continue;
bba95fef
JB		 1783 if (wp_idx < wp_start) {
1784 wp_idx++;
55682965 1785 continue;
bba95fef 1786 }
55682965
JB		 1787 if_idx = 0;
1788
f5ea9120 1789 mutex_lock(&rdev->devlist_mtx);
89a54e48 1790 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1791 if (if_idx < if_start) {
1792 if_idx++;
55682965 1793 continue;
bba95fef 1794 }
55682965
JB		 1795 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1796 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1797 rdev, wdev->netdev) < 0) {
1798 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1799 goto out;
1800 }
1801 if_idx++;
55682965 1802 }
f5ea9120 1803 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1804
1805 wp_idx++;
55682965 1806 }
bba95fef 1807 out:
a1794390 1808 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1809
1810 cb->args[0] = wp_idx;
1811 cb->args[1] = if_idx;
1812
1813 return skb->len;
1814}
1815
1816static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1817{
1818 struct sk_buff *msg;
4c476991
JB		 1819 struct cfg80211_registered_device *dev = info->user_ptr[0];
1820 struct net_device *netdev = info->user_ptr[1];
55682965 1821
fd2120ca 1822 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1823 if (!msg)
4c476991 1824 return -ENOMEM;
55682965 1825
d726405a 1826 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1827 dev, netdev) < 0) {
1828 nlmsg_free(msg);
1829 return -ENOBUFS;
1830 }
55682965 1831
134e6375 1832 return genlmsg_reply(msg, info);
55682965
JB		 1833}
1834
66f7ac50
MW		 1835static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1836 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1837 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1838 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1839 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1840 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1841};
1842
1843static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1844{
1845 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1846 int flag;
1847
1848 *mntrflags = 0;
1849
1850 if (!nla)
1851 return -EINVAL;
1852
1853 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1854 nla, mntr_flags_policy))
1855 return -EINVAL;
1856
1857 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1858 if (flags[flag])
1859 *mntrflags |= (1<<flag);
1860
1861 return 0;
1862}
1863
9bc383de 1864static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1865 struct net_device *netdev, u8 use_4addr,
1866 enum nl80211_iftype iftype)
9bc383de 1867{
ad4bb6f8 1868 if (!use_4addr) {
f350a0a8 1869 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1870 return -EBUSY;
9bc383de 1871 return 0;
ad4bb6f8 1872 }
9bc383de
JB		 1873
1874 switch (iftype) {
1875 case NL80211_IFTYPE_AP_VLAN:
1876 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1877 return 0;
1878 break;
1879 case NL80211_IFTYPE_STATION:
1880 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1881 return 0;
1882 break;
1883 default:
1884 break;
1885 }
1886
1887 return -EOPNOTSUPP;
1888}
1889
55682965
JB		 1890static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1891{
4c476991 1892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1893 struct vif_params params;
e36d56b6 1894 int err;
04a773ad 1895 enum nl80211_iftype otype, ntype;
4c476991 1896 struct net_device *dev = info->user_ptr[1];
92ffe055 1897 u32 _flags, *flags = NULL;
ac7f9cfa 1898 bool change = false;
55682965 1899
2ec600d6
LCC		 1900 memset(&params, 0, sizeof(params));
1901
04a773ad 1902 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1903
723b038d 1904 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1905 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1906 if (otype != ntype)
ac7f9cfa 1907 change = true;
4c476991
JB		 1908 if (ntype > NL80211_IFTYPE_MAX)
1909 return -EINVAL;
723b038d
JB		 1910 }
1911
92ffe055 1912 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1913 struct wireless_dev *wdev = dev->ieee80211_ptr;
1914
4c476991
JB		 1915 if (ntype != NL80211_IFTYPE_MESH_POINT)
1916 return -EINVAL;
29cbe68c
JB		 1917 if (netif_running(dev))
1918 return -EBUSY;
1919
1920 wdev_lock(wdev);
1921 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1922 IEEE80211_MAX_MESH_ID_LEN);
1923 wdev->mesh_id_up_len =
1924 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1925 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1926 wdev->mesh_id_up_len);
1927 wdev_unlock(wdev);
2ec600d6
LCC		 1928 }
1929
8b787643
FF		 1930 if (info->attrs[NL80211_ATTR_4ADDR]) {
1931 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1932 change = true;
ad4bb6f8 1933 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1934 if (err)
4c476991 1935 return err;
8b787643
FF		 1936 } else {
1937 params.use_4addr = -1;
1938 }
1939
92ffe055 1940 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1941 if (ntype != NL80211_IFTYPE_MONITOR)
1942 return -EINVAL;
92ffe055
JB		 1943 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1944 &_flags);
ac7f9cfa 1945 if (err)
4c476991 1946 return err;
ac7f9cfa
JB		 1947
1948 flags = &_flags;
1949 change = true;
92ffe055 1950 }
3b85875a 1951
ac7f9cfa 1952 if (change)
3d54d255 1953 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1954 else
1955 err = 0;
60719ffd 1956
9bc383de
JB		 1957 if (!err && params.use_4addr != -1)
1958 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1959
55682965
JB		 1960 return err;
1961}
1962
1963static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1964{
4c476991 1965 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1966 struct vif_params params;
f9e10ce4 1967 struct net_device *dev;
55682965
JB		 1968 int err;
1969 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1970 u32 flags;
55682965 1971
2ec600d6
LCC		 1972 memset(&params, 0, sizeof(params));
1973
55682965
JB		 1974 if (!info->attrs[NL80211_ATTR_IFNAME])
1975 return -EINVAL;
1976
1977 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1978 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1979 if (type > NL80211_IFTYPE_MAX)
1980 return -EINVAL;
1981 }
1982
79c97e97 1983 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1984 !(rdev->wiphy.interface_modes & (1 << type)))
1985 return -EOPNOTSUPP;
55682965 1986
9bc383de 1987 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1988 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1989 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1990 if (err)
4c476991 1991 return err;
9bc383de 1992 }
8b787643 1993
66f7ac50
MW		 1994 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1995 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1996 &flags);
f9e10ce4 1997 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1998 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1999 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 2000 if (IS_ERR(dev))
2001 return PTR_ERR(dev);
2ec600d6 2002
29cbe68c
JB		 2003 if (type == NL80211_IFTYPE_MESH_POINT &&
2004 info->attrs[NL80211_ATTR_MESH_ID]) {
2005 struct wireless_dev *wdev = dev->ieee80211_ptr;
2006
2007 wdev_lock(wdev);
2008 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2009 IEEE80211_MAX_MESH_ID_LEN);
2010 wdev->mesh_id_up_len =
2011 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2012 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2013 wdev->mesh_id_up_len);
2014 wdev_unlock(wdev);
2015 }
2016
f9e10ce4 2017 return 0;
55682965
JB		 2018}
2019
2020static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2021{
4c476991
JB		 2022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2023 struct net_device *dev = info->user_ptr[1];
55682965 2024
4c476991
JB		 2025 if (!rdev->ops->del_virtual_intf)
2026 return -EOPNOTSUPP;
55682965 2027
4c476991 2028 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 2029}
2030
1d9d9213
SW		 2031static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2032{
2033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2034 struct net_device *dev = info->user_ptr[1];
2035 u16 noack_map;
2036
2037 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2038 return -EINVAL;
2039
2040 if (!rdev->ops->set_noack_map)
2041 return -EOPNOTSUPP;
2042
2043 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2044
2045 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
2046}
2047
41ade00f
JB		 2048struct get_key_cookie {
2049 struct sk_buff *msg;
2050 int error;
b9454e83 2051 int idx;
41ade00f
JB		 2052};
2053
2054static void get_key_callback(void *c, struct key_params *params)
2055{
b9454e83 2056 struct nlattr *key;
41ade00f
JB		 2057 struct get_key_cookie *cookie = c;
2058
9360ffd1
DM		 2059 if ((params->key &&
2060 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2061 params->key_len, params->key)) ||
2062 (params->seq &&
2063 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2064 params->seq_len, params->seq)) ||
2065 (params->cipher &&
2066 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2067 params->cipher)))
2068 goto nla_put_failure;
41ade00f 2069
b9454e83
JB		 2070 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2071 if (!key)
2072 goto nla_put_failure;
2073
9360ffd1
DM		 2074 if ((params->key &&
2075 nla_put(cookie->msg, NL80211_KEY_DATA,
2076 params->key_len, params->key)) ||
2077 (params->seq &&
2078 nla_put(cookie->msg, NL80211_KEY_SEQ,
2079 params->seq_len, params->seq)) ||
2080 (params->cipher &&
2081 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2082 params->cipher)))
2083 goto nla_put_failure;
b9454e83 2084
9360ffd1
DM		 2085 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2086 goto nla_put_failure;
b9454e83
JB		 2087
2088 nla_nest_end(cookie->msg, key);
2089
41ade00f
JB		 2090 return;
2091 nla_put_failure:
2092 cookie->error = 1;
2093}
2094
2095static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2096{
4c476991 2097 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2098 int err;
4c476991 2099 struct net_device *dev = info->user_ptr[1];
41ade00f 2100 u8 key_idx = 0;
e31b8213
JB		 2101 const u8 *mac_addr = NULL;
2102 bool pairwise;
41ade00f
JB		 2103 struct get_key_cookie cookie = {
2104 .error = 0,
2105 };
2106 void *hdr;
2107 struct sk_buff *msg;
2108
2109 if (info->attrs[NL80211_ATTR_KEY_IDX])
2110 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2111
3cfcf6ac 2112 if (key_idx > 5)
41ade00f
JB		 2113 return -EINVAL;
2114
2115 if (info->attrs[NL80211_ATTR_MAC])
2116 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2117
e31b8213
JB		 2118 pairwise = !!mac_addr;
2119 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2120 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2121 if (kt >= NUM_NL80211_KEYTYPES)
2122 return -EINVAL;
2123 if (kt != NL80211_KEYTYPE_GROUP &&
2124 kt != NL80211_KEYTYPE_PAIRWISE)
2125 return -EINVAL;
2126 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2127 }
2128
4c476991
JB		 2129 if (!rdev->ops->get_key)
2130 return -EOPNOTSUPP;
41ade00f 2131
fd2120ca 2132 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2133 if (!msg)
2134 return -ENOMEM;
41ade00f
JB		 2135
2136 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2137 NL80211_CMD_NEW_KEY);
4c476991
JB		 2138 if (IS_ERR(hdr))
2139 return PTR_ERR(hdr);
41ade00f
JB		 2140
2141 cookie.msg = msg;
b9454e83 2142 cookie.idx = key_idx;
41ade00f 2143
9360ffd1
DM		 2144 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2145 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2146 goto nla_put_failure;
2147 if (mac_addr &&
2148 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2149 goto nla_put_failure;
41ade00f 2150
e31b8213
JB		 2151 if (pairwise && mac_addr &&
2152 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2153 return -ENOENT;
2154
2155 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2156 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 2157
2158 if (err)
6c95e2a2 2159 goto free_msg;
41ade00f
JB		 2160
2161 if (cookie.error)
2162 goto nla_put_failure;
2163
2164 genlmsg_end(msg, hdr);
4c476991 2165 return genlmsg_reply(msg, info);
41ade00f
JB		 2166
2167 nla_put_failure:
2168 err = -ENOBUFS;
6c95e2a2 2169 free_msg:
41ade00f 2170 nlmsg_free(msg);
41ade00f
JB		 2171 return err;
2172}
2173
2174static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2175{
4c476991 2176 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2177 struct key_parse key;
41ade00f 2178 int err;
4c476991 2179 struct net_device *dev = info->user_ptr[1];
41ade00f 2180
b9454e83
JB		 2181 err = nl80211_parse_key(info, &key);
2182 if (err)
2183 return err;
41ade00f 2184
b9454e83 2185 if (key.idx < 0)
41ade00f
JB		 2186 return -EINVAL;
2187
b9454e83
JB		 2188 /* only support setting default key */
2189 if (!key.def && !key.defmgmt)
41ade00f
JB		 2190 return -EINVAL;
2191
dbd2fd65 2192 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2193
dbd2fd65
JB		 2194 if (key.def) {
2195 if (!rdev->ops->set_default_key) {
2196 err = -EOPNOTSUPP;
2197 goto out;
2198 }
41ade00f 2199
dbd2fd65
JB		 2200 err = nl80211_key_allowed(dev->ieee80211_ptr);
2201 if (err)
2202 goto out;
2203
dbd2fd65
JB		 2204 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2205 key.def_uni, key.def_multi);
2206
2207 if (err)
2208 goto out;
fffd0934 2209
3d23e349 2210#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2211 dev->ieee80211_ptr->wext.default_key = key.idx;
2212#endif
2213 } else {
2214 if (key.def_uni || !key.def_multi) {
2215 err = -EINVAL;
2216 goto out;
2217 }
2218
2219 if (!rdev->ops->set_default_mgmt_key) {
2220 err = -EOPNOTSUPP;
2221 goto out;
2222 }
2223
2224 err = nl80211_key_allowed(dev->ieee80211_ptr);
2225 if (err)
2226 goto out;
2227
2228 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2229 dev, key.idx);
2230 if (err)
2231 goto out;
2232
2233#ifdef CONFIG_CFG80211_WEXT
2234 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2235#endif
dbd2fd65
JB		 2236 }
2237
2238 out:
fffd0934 2239 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2240
41ade00f
JB		 2241 return err;
2242}
2243
2244static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2245{
4c476991 2246 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2247 int err;
4c476991 2248 struct net_device *dev = info->user_ptr[1];
b9454e83 2249 struct key_parse key;
e31b8213 2250 const u8 *mac_addr = NULL;
41ade00f 2251
b9454e83
JB		 2252 err = nl80211_parse_key(info, &key);
2253 if (err)
2254 return err;
41ade00f 2255
b9454e83 2256 if (!key.p.key)
41ade00f
JB		 2257 return -EINVAL;
2258
41ade00f
JB		 2259 if (info->attrs[NL80211_ATTR_MAC])
2260 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2261
e31b8213
JB		 2262 if (key.type == -1) {
2263 if (mac_addr)
2264 key.type = NL80211_KEYTYPE_PAIRWISE;
2265 else
2266 key.type = NL80211_KEYTYPE_GROUP;
2267 }
2268
2269 /* for now */
2270 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2271 key.type != NL80211_KEYTYPE_GROUP)
2272 return -EINVAL;
2273
4c476991
JB		 2274 if (!rdev->ops->add_key)
2275 return -EOPNOTSUPP;
25e47c18 2276
e31b8213
JB		 2277 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2278 key.type == NL80211_KEYTYPE_PAIRWISE,
2279 mac_addr))
4c476991 2280 return -EINVAL;
41ade00f 2281
fffd0934
JB		 2282 wdev_lock(dev->ieee80211_ptr);
2283 err = nl80211_key_allowed(dev->ieee80211_ptr);
2284 if (!err)
2285 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2286 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2287 mac_addr, &key.p);
2288 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2289
41ade00f
JB		 2290 return err;
2291}
2292
2293static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2294{
4c476991 2295 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2296 int err;
4c476991 2297 struct net_device *dev = info->user_ptr[1];
41ade00f 2298 u8 *mac_addr = NULL;
b9454e83 2299 struct key_parse key;
41ade00f 2300
b9454e83
JB		 2301 err = nl80211_parse_key(info, &key);
2302 if (err)
2303 return err;
41ade00f
JB		 2304
2305 if (info->attrs[NL80211_ATTR_MAC])
2306 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2307
e31b8213
JB		 2308 if (key.type == -1) {
2309 if (mac_addr)
2310 key.type = NL80211_KEYTYPE_PAIRWISE;
2311 else
2312 key.type = NL80211_KEYTYPE_GROUP;
2313 }
2314
2315 /* for now */
2316 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2317 key.type != NL80211_KEYTYPE_GROUP)
2318 return -EINVAL;
2319
4c476991
JB		 2320 if (!rdev->ops->del_key)
2321 return -EOPNOTSUPP;
41ade00f 2322
fffd0934
JB		 2323 wdev_lock(dev->ieee80211_ptr);
2324 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2325
2326 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2327 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2328 err = -ENOENT;
2329
fffd0934 2330 if (!err)
e31b8213
JB		 2331 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2332 key.type == NL80211_KEYTYPE_PAIRWISE,
2333 mac_addr);
41ade00f 2334
3d23e349 2335#ifdef CONFIG_CFG80211_WEXT
08645126 2336 if (!err) {
b9454e83 2337 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2338 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2339 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2340 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2341 }
2342#endif
fffd0934 2343 wdev_unlock(dev->ieee80211_ptr);
08645126 2344
41ade00f
JB		 2345 return err;
2346}
2347
8860020e
JB		 2348static int nl80211_parse_beacon(struct genl_info *info,
2349 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2350{
8860020e 2351 bool haveinfo = false;
ed1b6cc7 2352
9946ecfb
JM		 2353 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2354 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2355 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2356 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2357 return -EINVAL;
2358
8860020e 2359 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2360
ed1b6cc7 2361 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2362 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2363 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2364 if (!bcn->head_len)
2365 return -EINVAL;
2366 haveinfo = true;
ed1b6cc7
JB		 2367 }
2368
2369 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2370 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2371 bcn->tail_len =
ed1b6cc7 2372 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2373 haveinfo = true;
ed1b6cc7
JB		 2374 }
2375
4c476991
JB		 2376 if (!haveinfo)
2377 return -EINVAL;
3b85875a 2378
9946ecfb 2379 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2380 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2381 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2382 }
2383
2384 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2385 bcn->proberesp_ies =
9946ecfb 2386 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2387 bcn->proberesp_ies_len =
9946ecfb
JM		 2388 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2389 }
2390
2391 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2392 bcn->assocresp_ies =
9946ecfb 2393 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2394 bcn->assocresp_ies_len =
9946ecfb
JM		 2395 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2396 }
2397
00f740e1 2398 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2399 bcn->probe_resp =
00f740e1 2400 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2401 bcn->probe_resp_len =
00f740e1
AN		 2402 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2403 }
2404
8860020e
JB		 2405 return 0;
2406}
2407
46c1dd0c
FF		 2408static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2409 struct cfg80211_ap_settings *params)
2410{
2411 struct wireless_dev *wdev;
2412 bool ret = false;
2413
2414 mutex_lock(&rdev->devlist_mtx);
2415
89a54e48 2416 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2417 if (wdev->iftype != NL80211_IFTYPE_AP &&
2418 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2419 continue;
2420
2421 if (!wdev->preset_chan)
2422 continue;
2423
2424 params->channel = wdev->preset_chan;
2425 params->channel_type = wdev->preset_chantype;
2426 ret = true;
2427 break;
2428 }
2429
2430 mutex_unlock(&rdev->devlist_mtx);
2431
2432 return ret;
2433}
2434
8860020e
JB		 2435static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2436{
2437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2438 struct net_device *dev = info->user_ptr[1];
2439 struct wireless_dev *wdev = dev->ieee80211_ptr;
2440 struct cfg80211_ap_settings params;
2441 int err;
2442
2443 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2444 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2445 return -EOPNOTSUPP;
2446
2447 if (!rdev->ops->start_ap)
2448 return -EOPNOTSUPP;
2449
2450 if (wdev->beacon_interval)
2451 return -EALREADY;
2452
2453 memset(&params, 0, sizeof(params));
2454
2455 /* these are required for START_AP */
2456 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2457 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2458 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2459 return -EINVAL;
2460
2461 err = nl80211_parse_beacon(info, &params.beacon);
2462 if (err)
2463 return err;
2464
2465 params.beacon_interval =
2466 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2467 params.dtim_period =
2468 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2469
2470 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2471 if (err)
2472 return err;
2473
2474 /*
2475 * In theory, some of these attributes should be required here
2476 * but since they were not used when the command was originally
2477 * added, keep them optional for old user space programs to let
2478 * them continue to work with drivers that do not need the
2479 * additional information -- drivers must check!
2480 */
2481 if (info->attrs[NL80211_ATTR_SSID]) {
2482 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2483 params.ssid_len =
2484 nla_len(info->attrs[NL80211_ATTR_SSID]);
2485 if (params.ssid_len == 0 ||
2486 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2487 return -EINVAL;
2488 }
2489
2490 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2491 params.hidden_ssid = nla_get_u32(
2492 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2493 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2494 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2495 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2496 return -EINVAL;
2497 }
2498
2499 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2500
2501 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2502 params.auth_type = nla_get_u32(
2503 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2504 if (!nl80211_valid_auth_type(params.auth_type))
2505 return -EINVAL;
2506 } else
2507 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2508
2509 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2510 NL80211_MAX_NR_CIPHER_SUITES);
2511 if (err)
2512 return err;
2513
1b658f11
VT		 2514 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2515 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2516 return -EOPNOTSUPP;
2517 params.inactivity_timeout = nla_get_u16(
2518 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2519 }
2520
aa430da4
JB		 2521 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2522 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2523
2524 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2525 !nl80211_valid_channel_type(info, &channel_type))
2526 return -EINVAL;
2527
2528 params.channel = rdev_freq_to_chan(rdev,
2529 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2530 channel_type);
2531 if (!params.channel)
2532 return -EINVAL;
2533 params.channel_type = channel_type;
2534 } else if (wdev->preset_chan) {
2535 params.channel = wdev->preset_chan;
2536 params.channel_type = wdev->preset_chantype;
46c1dd0c 2537 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2538 return -EINVAL;
2539
2540 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2541 params.channel_type))
2542 return -EINVAL;
2543
e4e32459
MK		 2544 mutex_lock(&rdev->devlist_mtx);
2545 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2546 CHAN_MODE_SHARED);
2547 mutex_unlock(&rdev->devlist_mtx);
2548
2549 if (err)
2550 return err;
2551
8860020e 2552 err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
46c1dd0c
FF		 2553 if (!err) {
2554 wdev->preset_chan = params.channel;
2555 wdev->preset_chantype = params.channel_type;
8860020e 2556 wdev->beacon_interval = params.beacon_interval;
f4489ebe 2557 wdev->channel = params.channel;
46c1dd0c 2558 }
56d1893d 2559 return err;
ed1b6cc7
JB		 2560}
2561
8860020e
JB		 2562static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2563{
2564 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2565 struct net_device *dev = info->user_ptr[1];
2566 struct wireless_dev *wdev = dev->ieee80211_ptr;
2567 struct cfg80211_beacon_data params;
2568 int err;
2569
2570 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2571 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2572 return -EOPNOTSUPP;
2573
2574 if (!rdev->ops->change_beacon)
2575 return -EOPNOTSUPP;
2576
2577 if (!wdev->beacon_interval)
2578 return -EINVAL;
2579
2580 err = nl80211_parse_beacon(info, &params);
2581 if (err)
2582 return err;
2583
2584 return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
2585}
2586
2587static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2588{
4c476991
JB		 2589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2590 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2591
60771780 2592 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2593}
2594
5727ef1b
JB		 2595static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2596 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2597 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2598 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2599 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2600 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2601 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2602};
2603
eccb8e8f 2604static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2605 enum nl80211_iftype iftype,
eccb8e8f 2606 struct station_parameters *params)
5727ef1b
JB		 2607{
2608 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2609 struct nlattr *nla;
5727ef1b
JB		 2610 int flag;
2611
eccb8e8f
JB		 2612 /*
2613 * Try parsing the new attribute first so userspace
2614 * can specify both for older kernels.
2615 */
2616 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2617 if (nla) {
2618 struct nl80211_sta_flag_update *sta_flags;
2619
2620 sta_flags = nla_data(nla);
2621 params->sta_flags_mask = sta_flags->mask;
2622 params->sta_flags_set = sta_flags->set;
2623 if ((params->sta_flags_mask |
2624 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2625 return -EINVAL;
2626 return 0;
2627 }
2628
2629 /* if present, parse the old attribute */
5727ef1b 2630
eccb8e8f 2631 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2632 if (!nla)
2633 return 0;
2634
2635 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2636 nla, sta_flags_policy))
2637 return -EINVAL;
2638
bdd3ae3d
JB		 2639 /*
2640 * Only allow certain flags for interface types so that
2641 * other attributes are silently ignored. Remember that
2642 * this is backward compatibility code with old userspace
2643 * and shouldn't be hit in other cases anyway.
2644 */
2645 switch (iftype) {
2646 case NL80211_IFTYPE_AP:
2647 case NL80211_IFTYPE_AP_VLAN:
2648 case NL80211_IFTYPE_P2P_GO:
2649 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2650 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2651 BIT(NL80211_STA_FLAG_WME) |
2652 BIT(NL80211_STA_FLAG_MFP);
2653 break;
2654 case NL80211_IFTYPE_P2P_CLIENT:
2655 case NL80211_IFTYPE_STATION:
2656 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2657 BIT(NL80211_STA_FLAG_TDLS_PEER);
2658 break;
2659 case NL80211_IFTYPE_MESH_POINT:
2660 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2661 BIT(NL80211_STA_FLAG_MFP) |
2662 BIT(NL80211_STA_FLAG_AUTHORIZED);
2663 default:
2664 return -EINVAL;
2665 }
5727ef1b 2666
3383b5a6
JB		 2667 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2668 if (flags[flag]) {
eccb8e8f 2669 params->sta_flags_set |= (1<<flag);
5727ef1b 2670
3383b5a6
JB		 2671 /* no longer support new API additions in old API */
2672 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2673 return -EINVAL;
2674 }
2675 }
2676
5727ef1b
JB		 2677 return 0;
2678}
2679
c8dcfd8a
FF		 2680static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2681 int attr)
2682{
2683 struct nlattr *rate;
8eb41c8d
VK		 2684 u32 bitrate;
2685 u16 bitrate_compat;
c8dcfd8a
FF		 2686
2687 rate = nla_nest_start(msg, attr);
2688 if (!rate)
2689 goto nla_put_failure;
2690
2691 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2692 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 2693 /* report 16-bit bitrate only if we can */
2694 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
9360ffd1 2695 if ((bitrate > 0 &&
8eb41c8d
VK		 2696 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
2697 (bitrate_compat > 0 &&
2698 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
9360ffd1
DM		 2699 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2700 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2701 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2702 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2703 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2704 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2705 goto nla_put_failure;
c8dcfd8a
FF		 2706
2707 nla_nest_end(msg, rate);
2708 return true;
2709
2710nla_put_failure:
2711 return false;
2712}
2713
fd5b74dc 2714static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
66266b3a
JL		 2715 int flags,
2716 struct cfg80211_registered_device *rdev,
2717 struct net_device *dev,
98b62183 2718 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2719{
2720 void *hdr;
f4263c98 2721 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2722
2723 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2724 if (!hdr)
2725 return -1;
2726
9360ffd1
DM		 2727 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2728 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2729 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2730 goto nla_put_failure;
f5ea9120 2731
2ec600d6
LCC		 2732 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2733 if (!sinfoattr)
fd5b74dc 2734 goto nla_put_failure;
9360ffd1
DM		 2735 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2736 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2737 sinfo->connected_time))
2738 goto nla_put_failure;
2739 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2740 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2741 sinfo->inactive_time))
2742 goto nla_put_failure;
2743 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2744 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2745 sinfo->rx_bytes))
2746 goto nla_put_failure;
2747 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2748 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2749 sinfo->tx_bytes))
2750 goto nla_put_failure;
2751 if ((sinfo->filled & STATION_INFO_LLID) &&
2752 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2753 goto nla_put_failure;
2754 if ((sinfo->filled & STATION_INFO_PLID) &&
2755 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2756 goto nla_put_failure;
2757 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2758 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2759 sinfo->plink_state))
2760 goto nla_put_failure;
66266b3a
JL		 2761 switch (rdev->wiphy.signal_type) {
2762 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2763 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2764 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2765 sinfo->signal))
2766 goto nla_put_failure;
2767 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2768 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2769 sinfo->signal_avg))
2770 goto nla_put_failure;
66266b3a
JL		 2771 break;
2772 default:
2773 break;
2774 }
420e7fab 2775 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2776 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2777 NL80211_STA_INFO_TX_BITRATE))
2778 goto nla_put_failure;
2779 }
2780 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2781 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2782 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2783 goto nla_put_failure;
420e7fab 2784 }
9360ffd1
DM		 2785 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2786 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2787 sinfo->rx_packets))
2788 goto nla_put_failure;
2789 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2790 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2791 sinfo->tx_packets))
2792 goto nla_put_failure;
2793 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2794 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2795 sinfo->tx_retries))
2796 goto nla_put_failure;
2797 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2798 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2799 sinfo->tx_failed))
2800 goto nla_put_failure;
2801 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2802 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2803 sinfo->beacon_loss_count))
2804 goto nla_put_failure;
f4263c98
PS		 2805 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2806 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2807 if (!bss_param)
2808 goto nla_put_failure;
2809
9360ffd1
DM		 2810 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2811 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2812 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2813 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2814 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2815 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2816 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2817 sinfo->bss_param.dtim_period) ||
2818 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2819 sinfo->bss_param.beacon_interval))
2820 goto nla_put_failure;
f4263c98
PS		 2821
2822 nla_nest_end(msg, bss_param);
2823 }
9360ffd1
DM		 2824 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2825 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2826 sizeof(struct nl80211_sta_flag_update),
2827 &sinfo->sta_flags))
2828 goto nla_put_failure;
7eab0f64
JL		 2829 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2830 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2831 sinfo->t_offset))
2832 goto nla_put_failure;
2ec600d6 2833 nla_nest_end(msg, sinfoattr);
fd5b74dc 2834
9360ffd1
DM		 2835 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2836 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2837 sinfo->assoc_req_ies))
2838 goto nla_put_failure;
50d3dfb7 2839
fd5b74dc
JB		 2840 return genlmsg_end(msg, hdr);
2841
2842 nla_put_failure:
bc3ed28c
TG		 2843 genlmsg_cancel(msg, hdr);
2844 return -EMSGSIZE;
fd5b74dc
JB		 2845}
2846
2ec600d6 2847static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2848 struct netlink_callback *cb)
2ec600d6 2849{
2ec600d6
LCC		 2850 struct station_info sinfo;
2851 struct cfg80211_registered_device *dev;
bba95fef 2852 struct net_device *netdev;
2ec600d6 2853 u8 mac_addr[ETH_ALEN];
bba95fef 2854 int sta_idx = cb->args[1];
2ec600d6 2855 int err;
2ec600d6 2856
67748893
JB		 2857 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2858 if (err)
2859 return err;
bba95fef
JB		 2860
2861 if (!dev->ops->dump_station) {
eec60b03 2862 err = -EOPNOTSUPP;
bba95fef
JB		 2863 goto out_err;
2864 }
2865
bba95fef 2866 while (1) {
f612cedf 2867 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2868 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2869 mac_addr, &sinfo);
2870 if (err == -ENOENT)
2871 break;
2872 if (err)
3b85875a 2873 goto out_err;
bba95fef
JB		 2874
2875 if (nl80211_send_station(skb,
2876 NETLINK_CB(cb->skb).pid,
2877 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 2878 dev, netdev, mac_addr,
bba95fef
JB		 2879 &sinfo) < 0)
2880 goto out;
2881
2882 sta_idx++;
2883 }
2884
2885
2886 out:
2887 cb->args[1] = sta_idx;
2888 err = skb->len;
bba95fef 2889 out_err:
67748893 2890 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2891
2892 return err;
2ec600d6 2893}
fd5b74dc 2894
5727ef1b
JB		 2895static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2896{
4c476991
JB		 2897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2898 struct net_device *dev = info->user_ptr[1];
2ec600d6 2899 struct station_info sinfo;
fd5b74dc
JB		 2900 struct sk_buff *msg;
2901 u8 *mac_addr = NULL;
4c476991 2902 int err;
fd5b74dc 2903
2ec600d6 2904 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2905
2906 if (!info->attrs[NL80211_ATTR_MAC])
2907 return -EINVAL;
2908
2909 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2910
4c476991
JB		 2911 if (!rdev->ops->get_station)
2912 return -EOPNOTSUPP;
3b85875a 2913
4c476991 2914 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2915 if (err)
4c476991 2916 return err;
2ec600d6 2917
fd2120ca 2918 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2919 if (!msg)
4c476991 2920 return -ENOMEM;
fd5b74dc
JB		 2921
2922 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
66266b3a 2923 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 2924 nlmsg_free(msg);
2925 return -ENOBUFS;
2926 }
3b85875a 2927
4c476991 2928 return genlmsg_reply(msg, info);
5727ef1b
JB		 2929}
2930
2931/*
c258d2de 2932 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2933 */
80b99899
JB		 2934static struct net_device *get_vlan(struct genl_info *info,
2935 struct cfg80211_registered_device *rdev)
5727ef1b 2936{
463d0183 2937 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2938 struct net_device *v;
2939 int ret;
2940
2941 if (!vlanattr)
2942 return NULL;
2943
2944 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2945 if (!v)
2946 return ERR_PTR(-ENODEV);
2947
2948 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2949 ret = -EINVAL;
2950 goto error;
5727ef1b 2951 }
80b99899
JB		 2952
2953 if (!netif_running(v)) {
2954 ret = -ENETDOWN;
2955 goto error;
2956 }
2957
2958 return v;
2959 error:
2960 dev_put(v);
2961 return ERR_PTR(ret);
5727ef1b
JB		 2962}
2963
2964static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2965{
4c476991 2966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2967 int err;
4c476991 2968 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2969 struct station_parameters params;
2970 u8 *mac_addr = NULL;
2971
2972 memset(&params, 0, sizeof(params));
2973
2974 params.listen_interval = -1;
57cf8043 2975 params.plink_state = -1;
5727ef1b
JB		 2976
2977 if (info->attrs[NL80211_ATTR_STA_AID])
2978 return -EINVAL;
2979
2980 if (!info->attrs[NL80211_ATTR_MAC])
2981 return -EINVAL;
2982
2983 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2984
2985 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2986 params.supported_rates =
2987 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2988 params.supported_rates_len =
2989 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2990 }
2991
2992 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2993 params.listen_interval =
2994 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2995
36aedc90
JM		 2996 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2997 params.ht_capa =
2998 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2999
bdd90d5e
JB		 3000 if (!rdev->ops->change_station)
3001 return -EOPNOTSUPP;
3002
bdd3ae3d 3003 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3004 return -EINVAL;
3005
2ec600d6
LCC		 3006 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3007 params.plink_action =
3008 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3009
9c3990aa
JC		 3010 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3011 params.plink_state =
3012 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3013
a97f4424
JB		 3014 switch (dev->ieee80211_ptr->iftype) {
3015 case NL80211_IFTYPE_AP:
3016 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3017 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3018 /* disallow mesh-specific things */
3019 if (params.plink_action)
bdd90d5e
JB		 3020 return -EINVAL;
3021
3022 /* TDLS can't be set, ... */
3023 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3024 return -EINVAL;
3025 /*
3026 * ... but don't bother the driver with it. This works around
3027 * a hostapd/wpa_supplicant issue -- it always includes the
3028 * TLDS_PEER flag in the mask even for AP mode.
3029 */
3030 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3031
3032 /* accept only the listed bits */
3033 if (params.sta_flags_mask &
3034 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3035 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3036 BIT(NL80211_STA_FLAG_WME) |
3037 BIT(NL80211_STA_FLAG_MFP)))
3038 return -EINVAL;
3039
3040 /* must be last in here for error handling */
3041 params.vlan = get_vlan(info, rdev);
3042 if (IS_ERR(params.vlan))
3043 return PTR_ERR(params.vlan);
a97f4424 3044 break;
074ac8df 3045 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3046 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3047 /*
3048 * Don't allow userspace to change the TDLS_PEER flag,
3049 * but silently ignore attempts to change it since we
3050 * don't have state here to verify that it doesn't try
3051 * to change the flag.
3052 */
3053 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 3054 /* fall through */
3055 case NL80211_IFTYPE_ADHOC:
3056 /* disallow things sta doesn't support */
3057 if (params.plink_action)
3058 return -EINVAL;
3059 if (params.ht_capa)
3060 return -EINVAL;
3061 if (params.listen_interval >= 0)
3062 return -EINVAL;
bdd90d5e
JB		 3063 /* reject any changes other than AUTHORIZED */
3064 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3065 return -EINVAL;
a97f4424
JB		 3066 break;
3067 case NL80211_IFTYPE_MESH_POINT:
3068 /* disallow things mesh doesn't support */
3069 if (params.vlan)
bdd90d5e 3070 return -EINVAL;
a97f4424 3071 if (params.ht_capa)
bdd90d5e 3072 return -EINVAL;
a97f4424 3073 if (params.listen_interval >= 0)
bdd90d5e
JB		 3074 return -EINVAL;
3075 /*
3076 * No special handling for TDLS here -- the userspace
3077 * mesh code doesn't have this bug.
3078 */
b39c48fa
JC		 3079 if (params.sta_flags_mask &
3080 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3081 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3082 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3083 return -EINVAL;
a97f4424
JB		 3084 break;
3085 default:
bdd90d5e 3086 return -EOPNOTSUPP;
034d655e
JB		 3087 }
3088
bdd90d5e 3089 /* be aware of params.vlan when changing code here */
5727ef1b 3090
79c97e97 3091 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3092
5727ef1b
JB		 3093 if (params.vlan)
3094 dev_put(params.vlan);
3b85875a 3095
5727ef1b
JB		 3096 return err;
3097}
3098
c75786c9
EP		 3099static struct nla_policy
3100nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3101 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3102 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3103};
3104
5727ef1b
JB		 3105static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3106{
4c476991 3107 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3108 int err;
4c476991 3109 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3110 struct station_parameters params;
3111 u8 *mac_addr = NULL;
3112
3113 memset(&params, 0, sizeof(params));
3114
3115 if (!info->attrs[NL80211_ATTR_MAC])
3116 return -EINVAL;
3117
5727ef1b
JB		 3118 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3119 return -EINVAL;
3120
3121 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3122 return -EINVAL;
3123
0e956c13
TLSC		 3124 if (!info->attrs[NL80211_ATTR_STA_AID])
3125 return -EINVAL;
3126
5727ef1b
JB		 3127 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3128 params.supported_rates =
3129 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3130 params.supported_rates_len =
3131 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3132 params.listen_interval =
3133 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3134
0e956c13
TLSC		 3135 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3136 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3137 return -EINVAL;
51b50fbe 3138
36aedc90
JM		 3139 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3140 params.ht_capa =
3141 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3142
96b78dff
JC		 3143 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3144 params.plink_action =
3145 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3146
bdd90d5e
JB		 3147 if (!rdev->ops->add_station)
3148 return -EOPNOTSUPP;
3149
bdd3ae3d 3150 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3151 return -EINVAL;
3152
bdd90d5e
JB		 3153 switch (dev->ieee80211_ptr->iftype) {
3154 case NL80211_IFTYPE_AP:
3155 case NL80211_IFTYPE_AP_VLAN:
3156 case NL80211_IFTYPE_P2P_GO:
3157 /* parse WME attributes if sta is WME capable */
3158 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3159 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3160 info->attrs[NL80211_ATTR_STA_WME]) {
3161 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3162 struct nlattr *nla;
3163
3164 nla = info->attrs[NL80211_ATTR_STA_WME];
3165 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3166 nl80211_sta_wme_policy);
3167 if (err)
3168 return err;
3169
3170 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3171 params.uapsd_queues =
3172 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3173 if (params.uapsd_queues &
3174 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3175 return -EINVAL;
c75786c9 3176
bdd90d5e
JB		 3177 if (tb[NL80211_STA_WME_MAX_SP])
3178 params.max_sp =
3179 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3180
bdd90d5e
JB		 3181 if (params.max_sp &
3182 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3183 return -EINVAL;
4319e193 3184
bdd90d5e
JB		 3185 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3186 }
3187 /* TDLS peers cannot be added */
3188 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3189 return -EINVAL;
bdd90d5e
JB		 3190 /* but don't bother the driver with it */
3191 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3192
bdd90d5e
JB		 3193 /* must be last in here for error handling */
3194 params.vlan = get_vlan(info, rdev);
3195 if (IS_ERR(params.vlan))
3196 return PTR_ERR(params.vlan);
3197 break;
3198 case NL80211_IFTYPE_MESH_POINT:
3199 /* TDLS peers cannot be added */
3200 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3201 return -EINVAL;
3202 break;
3203 case NL80211_IFTYPE_STATION:
3204 /* Only TDLS peers can be added */
3205 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3206 return -EINVAL;
3207 /* Can only add if TDLS ... */
3208 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3209 return -EOPNOTSUPP;
3210 /* ... with external setup is supported */
3211 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3212 return -EOPNOTSUPP;
3213 break;
3214 default:
3215 return -EOPNOTSUPP;
c75786c9
EP		 3216 }
3217
bdd90d5e 3218 /* be aware of params.vlan when changing code here */
5727ef1b 3219
79c97e97 3220 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3221
5727ef1b
JB		 3222 if (params.vlan)
3223 dev_put(params.vlan);
5727ef1b
JB		 3224 return err;
3225}
3226
3227static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3228{
4c476991
JB		 3229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3230 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3231 u8 *mac_addr = NULL;
3232
3233 if (info->attrs[NL80211_ATTR_MAC])
3234 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3235
e80cf853 3236 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3237 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3238 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3239 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3240 return -EINVAL;
5727ef1b 3241
4c476991
JB		 3242 if (!rdev->ops->del_station)
3243 return -EOPNOTSUPP;
3b85875a 3244
4c476991 3245 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 3246}
3247
2ec600d6
LCC		 3248static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3249 int flags, struct net_device *dev,
3250 u8 *dst, u8 *next_hop,
3251 struct mpath_info *pinfo)
3252{
3253 void *hdr;
3254 struct nlattr *pinfoattr;
3255
3256 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3257 if (!hdr)
3258 return -1;
3259
9360ffd1
DM		 3260 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3261 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3262 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3263 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3264 goto nla_put_failure;
f5ea9120 3265
2ec600d6
LCC		 3266 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3267 if (!pinfoattr)
3268 goto nla_put_failure;
9360ffd1
DM		 3269 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3270 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3271 pinfo->frame_qlen))
3272 goto nla_put_failure;
3273 if (((pinfo->filled & MPATH_INFO_SN) &&
3274 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3275 ((pinfo->filled & MPATH_INFO_METRIC) &&
3276 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3277 pinfo->metric)) ||
3278 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3279 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3280 pinfo->exptime)) ||
3281 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3282 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3283 pinfo->flags)) ||
3284 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3285 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3286 pinfo->discovery_timeout)) ||
3287 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3288 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3289 pinfo->discovery_retries)))
3290 goto nla_put_failure;
2ec600d6
LCC		 3291
3292 nla_nest_end(msg, pinfoattr);
3293
3294 return genlmsg_end(msg, hdr);
3295
3296 nla_put_failure:
bc3ed28c
TG		 3297 genlmsg_cancel(msg, hdr);
3298 return -EMSGSIZE;
2ec600d6
LCC		 3299}
3300
3301static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3302 struct netlink_callback *cb)
2ec600d6 3303{
2ec600d6
LCC		 3304 struct mpath_info pinfo;
3305 struct cfg80211_registered_device *dev;
bba95fef 3306 struct net_device *netdev;
2ec600d6
LCC		 3307 u8 dst[ETH_ALEN];
3308 u8 next_hop[ETH_ALEN];
bba95fef 3309 int path_idx = cb->args[1];
2ec600d6 3310 int err;
2ec600d6 3311
67748893
JB		 3312 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3313 if (err)
3314 return err;
bba95fef
JB		 3315
3316 if (!dev->ops->dump_mpath) {
eec60b03 3317 err = -EOPNOTSUPP;
bba95fef
JB		 3318 goto out_err;
3319 }
3320
eec60b03
JM		 3321 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3322 err = -EOPNOTSUPP;
0448b5fc 3323 goto out_err;
eec60b03
JM		 3324 }
3325
bba95fef
JB		 3326 while (1) {
3327 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3328 dst, next_hop, &pinfo);
3329 if (err == -ENOENT)
2ec600d6 3330 break;
bba95fef 3331 if (err)
3b85875a 3332 goto out_err;
2ec600d6 3333
bba95fef
JB		 3334 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3335 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3336 netdev, dst, next_hop,
3337 &pinfo) < 0)
3338 goto out;
2ec600d6 3339
bba95fef 3340 path_idx++;
2ec600d6 3341 }
2ec600d6 3342
2ec600d6 3343
bba95fef
JB		 3344 out:
3345 cb->args[1] = path_idx;
3346 err = skb->len;
bba95fef 3347 out_err:
67748893 3348 nl80211_finish_netdev_dump(dev);
bba95fef 3349 return err;
2ec600d6
LCC		 3350}
3351
3352static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3353{
4c476991 3354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3355 int err;
4c476991 3356 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3357 struct mpath_info pinfo;
3358 struct sk_buff *msg;
3359 u8 *dst = NULL;
3360 u8 next_hop[ETH_ALEN];
3361
3362 memset(&pinfo, 0, sizeof(pinfo));
3363
3364 if (!info->attrs[NL80211_ATTR_MAC])
3365 return -EINVAL;
3366
3367 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3368
4c476991
JB		 3369 if (!rdev->ops->get_mpath)
3370 return -EOPNOTSUPP;
2ec600d6 3371
4c476991
JB		 3372 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3373 return -EOPNOTSUPP;
eec60b03 3374
79c97e97 3375 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 3376 if (err)
4c476991 3377 return err;
2ec600d6 3378
fd2120ca 3379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3380 if (!msg)
4c476991 3381 return -ENOMEM;
2ec600d6
LCC		 3382
3383 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 3384 dev, dst, next_hop, &pinfo) < 0) {
3385 nlmsg_free(msg);
3386 return -ENOBUFS;
3387 }
3b85875a 3388
4c476991 3389 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3390}
3391
3392static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3393{
4c476991
JB		 3394 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3395 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3396 u8 *dst = NULL;
3397 u8 *next_hop = NULL;
3398
3399 if (!info->attrs[NL80211_ATTR_MAC])
3400 return -EINVAL;
3401
3402 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3403 return -EINVAL;
3404
3405 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3406 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3407
4c476991
JB		 3408 if (!rdev->ops->change_mpath)
3409 return -EOPNOTSUPP;
35a8efe1 3410
4c476991
JB		 3411 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3412 return -EOPNOTSUPP;
2ec600d6 3413
4c476991 3414 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3415}
4c476991 3416
2ec600d6
LCC		 3417static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3418{
4c476991
JB		 3419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3420 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3421 u8 *dst = NULL;
3422 u8 *next_hop = NULL;
3423
3424 if (!info->attrs[NL80211_ATTR_MAC])
3425 return -EINVAL;
3426
3427 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3428 return -EINVAL;
3429
3430 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3431 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3432
4c476991
JB		 3433 if (!rdev->ops->add_mpath)
3434 return -EOPNOTSUPP;
35a8efe1 3435
4c476991
JB		 3436 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3437 return -EOPNOTSUPP;
2ec600d6 3438
4c476991 3439 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3440}
3441
3442static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3443{
4c476991
JB		 3444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3445 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3446 u8 *dst = NULL;
3447
3448 if (info->attrs[NL80211_ATTR_MAC])
3449 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3450
4c476991
JB		 3451 if (!rdev->ops->del_mpath)
3452 return -EOPNOTSUPP;
3b85875a 3453
4c476991 3454 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3455}
3456
9f1ba906
JM		 3457static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3458{
4c476991
JB		 3459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3460 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3461 struct bss_parameters params;
3462
3463 memset(&params, 0, sizeof(params));
3464 /* default to not changing parameters */
3465 params.use_cts_prot = -1;
3466 params.use_short_preamble = -1;
3467 params.use_short_slot_time = -1;
fd8aaaf3 3468 params.ap_isolate = -1;
50b12f59 3469 params.ht_opmode = -1;
9f1ba906
JM		 3470
3471 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3472 params.use_cts_prot =
3473 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3474 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3475 params.use_short_preamble =
3476 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3477 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3478 params.use_short_slot_time =
3479 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3480 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3481 params.basic_rates =
3482 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3483 params.basic_rates_len =
3484 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3485 }
fd8aaaf3
FF		 3486 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3487 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3488 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3489 params.ht_opmode =
3490 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3491
4c476991
JB		 3492 if (!rdev->ops->change_bss)
3493 return -EOPNOTSUPP;
9f1ba906 3494
074ac8df 3495 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3496 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3497 return -EOPNOTSUPP;
3b85875a 3498
4c476991 3499 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3500}
3501
b54452b0 3502static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3503 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3504 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3505 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3506 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3507 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3508 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3509};
3510
3511static int parse_reg_rule(struct nlattr *tb[],
3512 struct ieee80211_reg_rule *reg_rule)
3513{
3514 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3515 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3516
3517 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3518 return -EINVAL;
3519 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3520 return -EINVAL;
3521 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3522 return -EINVAL;
3523 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3524 return -EINVAL;
3525 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3526 return -EINVAL;
3527
3528 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3529
3530 freq_range->start_freq_khz =
3531 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3532 freq_range->end_freq_khz =
3533 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3534 freq_range->max_bandwidth_khz =
3535 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3536
3537 power_rule->max_eirp =
3538 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3539
3540 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3541 power_rule->max_antenna_gain =
3542 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3543
3544 return 0;
3545}
3546
3547static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3548{
3549 int r;
3550 char *data = NULL;
3551
80778f18
LR		 3552 /*
3553 * You should only get this when cfg80211 hasn't yet initialized
3554 * completely when built-in to the kernel right between the time
3555 * window between nl80211_init() and regulatory_init(), if that is
3556 * even possible.
3557 */
3558 mutex_lock(&cfg80211_mutex);
3559 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3560 mutex_unlock(&cfg80211_mutex);
3561 return -EINPROGRESS;
80778f18 3562 }
fe33eb39 3563 mutex_unlock(&cfg80211_mutex);
80778f18 3564
fe33eb39
LR		 3565 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3566 return -EINVAL;
b2e1b302
LR		 3567
3568 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3569
fe33eb39
LR		 3570 r = regulatory_hint_user(data);
3571
b2e1b302
LR		 3572 return r;
3573}
3574
24bdd9f4 3575static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3576 struct genl_info *info)
93da9cc1 3577{
4c476991 3578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3579 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3580 struct wireless_dev *wdev = dev->ieee80211_ptr;
3581 struct mesh_config cur_params;
3582 int err = 0;
93da9cc1 3583 void *hdr;
3584 struct nlattr *pinfoattr;
3585 struct sk_buff *msg;
3586
29cbe68c
JB		 3587 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3588 return -EOPNOTSUPP;
3589
24bdd9f4 3590 if (!rdev->ops->get_mesh_config)
4c476991 3591 return -EOPNOTSUPP;
f3f92586 3592
29cbe68c
JB		 3593 wdev_lock(wdev);
3594 /* If not connected, get default parameters */
3595 if (!wdev->mesh_id_len)
3596 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3597 else
24bdd9f4 3598 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3599 &cur_params);
3600 wdev_unlock(wdev);
3601
93da9cc1 3602 if (err)
4c476991 3603 return err;
93da9cc1 3604
3605 /* Draw up a netlink message to send back */
fd2120ca 3606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3607 if (!msg)
3608 return -ENOMEM;
93da9cc1 3609 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3610 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3611 if (!hdr)
efe1cf0c 3612 goto out;
24bdd9f4 3613 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3614 if (!pinfoattr)
3615 goto nla_put_failure;
9360ffd1
DM		 3616 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3617 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3618 cur_params.dot11MeshRetryTimeout) ||
3619 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3620 cur_params.dot11MeshConfirmTimeout) ||
3621 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3622 cur_params.dot11MeshHoldingTimeout) ||
3623 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3624 cur_params.dot11MeshMaxPeerLinks) ||
3625 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3626 cur_params.dot11MeshMaxRetries) ||
3627 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3628 cur_params.dot11MeshTTL) ||
3629 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3630 cur_params.element_ttl) ||
3631 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3632 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3633 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3634 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3635 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3636 cur_params.dot11MeshHWMPmaxPREQretries) ||
3637 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3638 cur_params.path_refresh_time) ||
3639 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3640 cur_params.min_discovery_timeout) ||
3641 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3642 cur_params.dot11MeshHWMPactivePathTimeout) ||
3643 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3644 cur_params.dot11MeshHWMPpreqMinInterval) ||
3645 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3646 cur_params.dot11MeshHWMPperrMinInterval) ||
3647 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3648 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3649 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3650 cur_params.dot11MeshHWMPRootMode) ||
3651 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3652 cur_params.dot11MeshHWMPRannInterval) ||
3653 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3654 cur_params.dot11MeshGateAnnouncementProtocol) ||
3655 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3656 cur_params.dot11MeshForwarding) ||
3657 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3658 cur_params.rssi_threshold) ||
3659 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3660 cur_params.ht_opmode) ||
3661 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3662 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3663 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3664 cur_params.dot11MeshHWMProotInterval) ||
3665 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3666 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3667 goto nla_put_failure;
93da9cc1 3668 nla_nest_end(msg, pinfoattr);
3669 genlmsg_end(msg, hdr);
4c476991 3670 return genlmsg_reply(msg, info);
93da9cc1 3671
3b85875a 3672 nla_put_failure:
93da9cc1 3673 genlmsg_cancel(msg, hdr);
efe1cf0c 3674 out:
d080e275 3675 nlmsg_free(msg);
4c476991 3676 return -ENOBUFS;
93da9cc1 3677}
3678
b54452b0 3679static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3680 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3681 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3682 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3683 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3684 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3685 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3686 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3687 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3688 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3689 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3690 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3691 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3692 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3693 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3694 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3695 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3696 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3697 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3698 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3699 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3700 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3701 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3702 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3703 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3704 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3705};
3706
c80d545d
JC		 3707static const struct nla_policy
3708 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3709 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3710 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3711 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3712 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3713 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3714 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3715 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3716};
3717
24bdd9f4 3718static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3719 struct mesh_config *cfg,
3720 u32 *mask_out)
93da9cc1 3721{
93da9cc1 3722 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3723 u32 mask = 0;
93da9cc1 3724
bd90fdcc
JB		 3725#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3726do {\
3727 if (table[attr_num]) {\
3728 cfg->param = nla_fn(table[attr_num]); \
3729 mask |= (1 << (attr_num - 1)); \
3730 } \
3731} while (0);\
3732
3733
24bdd9f4 3734 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3735 return -EINVAL;
3736 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3737 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3738 nl80211_meshconf_params_policy))
93da9cc1 3739 return -EINVAL;
3740
93da9cc1 3741 /* This makes sure that there aren't more than 32 mesh config
3742 * parameters (otherwise our bitfield scheme would not work.) */
3743 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3744
3745 /* Fill in the params struct */
93da9cc1 3746 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
a4f606ea
CYY		 3747 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3748 nla_get_u16);
93da9cc1 3749 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
a4f606ea
CYY		 3750 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3751 nla_get_u16);
93da9cc1 3752 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
a4f606ea
CYY		 3753 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3754 nla_get_u16);
93da9cc1 3755 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
a4f606ea
CYY		 3756 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3757 nla_get_u16);
93da9cc1 3758 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
a4f606ea
CYY		 3759 mask, NL80211_MESHCONF_MAX_RETRIES,
3760 nla_get_u8);
93da9cc1 3761 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
a4f606ea 3762 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21 3763 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
a4f606ea
CYY		 3764 mask, NL80211_MESHCONF_ELEMENT_TTL,
3765 nla_get_u8);
93da9cc1 3766 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
a4f606ea
CYY		 3767 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3768 nla_get_u8);
3769 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3770 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3771 nla_get_u32);
93da9cc1 3772 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
a4f606ea
CYY		 3773 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3774 nla_get_u8);
93da9cc1 3775 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
a4f606ea
CYY		 3776 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3777 nla_get_u32);
93da9cc1 3778 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
a4f606ea
CYY		 3779 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3780 nla_get_u16);
3781 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3782 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3783 nla_get_u32);
93da9cc1 3784 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
a4f606ea
CYY		 3785 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3786 nla_get_u16);
dca7e943 3787 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
a4f606ea
CYY		 3788 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3789 nla_get_u16);
0507e159 3790 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3791 dot11MeshHWMPnetDiameterTraversalTime, mask,
3792 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3793 nla_get_u16);
3794 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3795 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3796 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3797 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3798 nla_get_u16);
16dd7267 3799 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3800 dot11MeshGateAnnouncementProtocol, mask,
3801 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3802 nla_get_u8);
94f90656 3803 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
a4f606ea
CYY		 3804 mask, NL80211_MESHCONF_FORWARDING,
3805 nla_get_u8);
55335137 3806 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
a4f606ea
CYY		 3807 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3808 nla_get_u32);
70c33eaa 3809 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
a4f606ea 3810 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3811 nla_get_u16);
3812 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3813 mask,
3814 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3815 nla_get_u32);
3816 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3817 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3818 nla_get_u16);
3819 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3820 dot11MeshHWMPconfirmationInterval, mask,
3821 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 3822 nla_get_u16);
bd90fdcc
JB		 3823 if (mask_out)
3824 *mask_out = mask;
c80d545d 3825
bd90fdcc
JB		 3826 return 0;
3827
3828#undef FILL_IN_MESH_PARAM_IF_SET
3829}
3830
c80d545d
JC		 3831static int nl80211_parse_mesh_setup(struct genl_info *info,
3832 struct mesh_setup *setup)
3833{
3834 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3835
3836 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3837 return -EINVAL;
3838 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3839 info->attrs[NL80211_ATTR_MESH_SETUP],
3840 nl80211_mesh_setup_params_policy))
3841 return -EINVAL;
3842
d299a1f2
JC		 3843 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3844 setup->sync_method =
3845 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3846 IEEE80211_SYNC_METHOD_VENDOR :
3847 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3848
c80d545d
JC		 3849 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3850 setup->path_sel_proto =
3851 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3852 IEEE80211_PATH_PROTOCOL_VENDOR :
3853 IEEE80211_PATH_PROTOCOL_HWMP;
3854
3855 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3856 setup->path_metric =
3857 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3858 IEEE80211_PATH_METRIC_VENDOR :
3859 IEEE80211_PATH_METRIC_AIRTIME;
3860
581a8b0f
JC		 3861
3862 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3863 struct nlattr *ieattr =
581a8b0f 3864 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3865 if (!is_valid_ie_attr(ieattr))
3866 return -EINVAL;
581a8b0f
JC		 3867 setup->ie = nla_data(ieattr);
3868 setup->ie_len = nla_len(ieattr);
c80d545d 3869 }
b130e5ce
JC		 3870 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3871 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3872
3873 return 0;
3874}
3875
24bdd9f4 3876static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3877 struct genl_info *info)
bd90fdcc
JB		 3878{
3879 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3880 struct net_device *dev = info->user_ptr[1];
29cbe68c 3881 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3882 struct mesh_config cfg;
3883 u32 mask;
3884 int err;
3885
29cbe68c
JB		 3886 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3887 return -EOPNOTSUPP;
3888
24bdd9f4 3889 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3890 return -EOPNOTSUPP;
3891
24bdd9f4 3892 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3893 if (err)
3894 return err;
3895
29cbe68c
JB		 3896 wdev_lock(wdev);
3897 if (!wdev->mesh_id_len)
3898 err = -ENOLINK;
3899
3900 if (!err)
24bdd9f4 3901 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3902 mask, &cfg);
3903
3904 wdev_unlock(wdev);
3905
3906 return err;
93da9cc1 3907}
3908
f130347c
LR		 3909static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3910{
3911 struct sk_buff *msg;
3912 void *hdr = NULL;
3913 struct nlattr *nl_reg_rules;
3914 unsigned int i;
3915 int err = -EINVAL;
3916
a1794390 3917 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3918
3919 if (!cfg80211_regdomain)
3920 goto out;
3921
fd2120ca 3922 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3923 if (!msg) {
3924 err = -ENOBUFS;
3925 goto out;
3926 }
3927
3928 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3929 NL80211_CMD_GET_REG);
3930 if (!hdr)
efe1cf0c 3931 goto put_failure;
f130347c 3932
9360ffd1
DM		 3933 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3934 cfg80211_regdomain->alpha2) ||
3935 (cfg80211_regdomain->dfs_region &&
3936 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3937 cfg80211_regdomain->dfs_region)))
3938 goto nla_put_failure;
f130347c
LR		 3939
3940 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3941 if (!nl_reg_rules)
3942 goto nla_put_failure;
3943
3944 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3945 struct nlattr *nl_reg_rule;
3946 const struct ieee80211_reg_rule *reg_rule;
3947 const struct ieee80211_freq_range *freq_range;
3948 const struct ieee80211_power_rule *power_rule;
3949
3950 reg_rule = &cfg80211_regdomain->reg_rules[i];
3951 freq_range = &reg_rule->freq_range;
3952 power_rule = &reg_rule->power_rule;
3953
3954 nl_reg_rule = nla_nest_start(msg, i);
3955 if (!nl_reg_rule)
3956 goto nla_put_failure;
3957
9360ffd1
DM		 3958 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3959 reg_rule->flags) ||
3960 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3961 freq_range->start_freq_khz) ||
3962 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3963 freq_range->end_freq_khz) ||
3964 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3965 freq_range->max_bandwidth_khz) ||
3966 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3967 power_rule->max_antenna_gain) ||
3968 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3969 power_rule->max_eirp))
3970 goto nla_put_failure;
f130347c
LR		 3971
3972 nla_nest_end(msg, nl_reg_rule);
3973 }
3974
3975 nla_nest_end(msg, nl_reg_rules);
3976
3977 genlmsg_end(msg, hdr);
134e6375 3978 err = genlmsg_reply(msg, info);
f130347c
LR		 3979 goto out;
3980
3981nla_put_failure:
3982 genlmsg_cancel(msg, hdr);
efe1cf0c 3983put_failure:
d080e275 3984 nlmsg_free(msg);
f130347c
LR		 3985 err = -EMSGSIZE;
3986out:
a1794390 3987 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3988 return err;
3989}
3990
b2e1b302
LR		 3991static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3992{
3993 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3994 struct nlattr *nl_reg_rule;
3995 char *alpha2 = NULL;
3996 int rem_reg_rules = 0, r = 0;
3997 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3998 u8 dfs_region = 0;
b2e1b302
LR		 3999 struct ieee80211_regdomain *rd = NULL;
4000
4001 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4002 return -EINVAL;
4003
4004 if (!info->attrs[NL80211_ATTR_REG_RULES])
4005 return -EINVAL;
4006
4007 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4008
8b60b078
LR		 4009 if (info->attrs[NL80211_ATTR_DFS_REGION])
4010 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4011
b2e1b302
LR		 4012 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4013 rem_reg_rules) {
4014 num_rules++;
4015 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4016 return -EINVAL;
b2e1b302
LR		 4017 }
4018
61405e97
LR		 4019 mutex_lock(&cfg80211_mutex);
4020
d0e18f83
LR		 4021 if (!reg_is_valid_request(alpha2)) {
4022 r = -EINVAL;
4023 goto bad_reg;
4024 }
b2e1b302
LR		 4025
4026 size_of_regd = sizeof(struct ieee80211_regdomain) +
4027 (num_rules * sizeof(struct ieee80211_reg_rule));
4028
4029 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 4030 if (!rd) {
4031 r = -ENOMEM;
4032 goto bad_reg;
4033 }
b2e1b302
LR		 4034
4035 rd->n_reg_rules = num_rules;
4036 rd->alpha2[0] = alpha2[0];
4037 rd->alpha2[1] = alpha2[1];
4038
8b60b078
LR		 4039 /*
4040 * Disable DFS master mode if the DFS region was
4041 * not supported or known on this kernel.
4042 */
4043 if (reg_supported_dfs_region(dfs_region))
4044 rd->dfs_region = dfs_region;
4045
b2e1b302
LR		 4046 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4047 rem_reg_rules) {
4048 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4049 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4050 reg_rule_policy);
4051 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4052 if (r)
4053 goto bad_reg;
4054
4055 rule_idx++;
4056
d0e18f83
LR		 4057 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4058 r = -EINVAL;
b2e1b302 4059 goto bad_reg;
d0e18f83 4060 }
b2e1b302
LR		 4061 }
4062
4063 BUG_ON(rule_idx != num_rules);
4064
b2e1b302 4065 r = set_regdom(rd);
61405e97 4066
a1794390 4067 mutex_unlock(&cfg80211_mutex);
d0e18f83 4068
b2e1b302
LR		 4069 return r;
4070
d2372b31 4071 bad_reg:
61405e97 4072 mutex_unlock(&cfg80211_mutex);
b2e1b302 4073 kfree(rd);
d0e18f83 4074 return r;
b2e1b302
LR		 4075}
4076
83f5e2cf
JB		 4077static int validate_scan_freqs(struct nlattr *freqs)
4078{
4079 struct nlattr *attr1, *attr2;
4080 int n_channels = 0, tmp1, tmp2;
4081
4082 nla_for_each_nested(attr1, freqs, tmp1) {
4083 n_channels++;
4084 /*
4085 * Some hardware has a limited channel list for
4086 * scanning, and it is pretty much nonsensical
4087 * to scan for a channel twice, so disallow that
4088 * and don't require drivers to check that the
4089 * channel list they get isn't longer than what
4090 * they can scan, as long as they can scan all
4091 * the channels they registered at once.
4092 */
4093 nla_for_each_nested(attr2, freqs, tmp2)
4094 if (attr1 != attr2 &&
4095 nla_get_u32(attr1) == nla_get_u32(attr2))
4096 return 0;
4097 }
4098
4099 return n_channels;
4100}
4101
2a519311
JB		 4102static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4103{
4c476991
JB		 4104 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4105 struct net_device *dev = info->user_ptr[1];
2a519311 4106 struct cfg80211_scan_request *request;
2a519311
JB		 4107 struct nlattr *attr;
4108 struct wiphy *wiphy;
83f5e2cf 4109 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4110 size_t ie_len;
2a519311 4111
f4a11bb0
JB		 4112 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4113 return -EINVAL;
4114
79c97e97 4115 wiphy = &rdev->wiphy;
2a519311 4116
4c476991
JB		 4117 if (!rdev->ops->scan)
4118 return -EOPNOTSUPP;
2a519311 4119
4c476991
JB		 4120 if (rdev->scan_req)
4121 return -EBUSY;
2a519311
JB		 4122
4123 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4124 n_channels = validate_scan_freqs(
4125 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4126 if (!n_channels)
4127 return -EINVAL;
2a519311 4128 } else {
34850ab2 4129 enum ieee80211_band band;
83f5e2cf
JB		 4130 n_channels = 0;
4131
2a519311
JB		 4132 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4133 if (wiphy->bands[band])
4134 n_channels += wiphy->bands[band]->n_channels;
4135 }
4136
4137 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4138 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4139 n_ssids++;
4140
4c476991
JB		 4141 if (n_ssids > wiphy->max_scan_ssids)
4142 return -EINVAL;
2a519311 4143
70692ad2
JM		 4144 if (info->attrs[NL80211_ATTR_IE])
4145 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4146 else
4147 ie_len = 0;
4148
4c476991
JB		 4149 if (ie_len > wiphy->max_scan_ie_len)
4150 return -EINVAL;
18a83659 4151
2a519311 4152 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4153 + sizeof(*request->ssids) * n_ssids
4154 + sizeof(*request->channels) * n_channels
70692ad2 4155 + ie_len, GFP_KERNEL);
4c476991
JB		 4156 if (!request)
4157 return -ENOMEM;
2a519311 4158
2a519311 4159 if (n_ssids)
5ba63533 4160 request->ssids = (void *)&request->channels[n_channels];
2a519311 4161 request->n_ssids = n_ssids;
70692ad2
JM		 4162 if (ie_len) {
4163 if (request->ssids)
4164 request->ie = (void *)(request->ssids + n_ssids);
4165 else
4166 request->ie = (void *)(request->channels + n_channels);
4167 }
2a519311 4168
584991dc 4169 i = 0;
2a519311
JB		 4170 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4171 /* user specified, bail out if channel not found */
2a519311 4172 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4173 struct ieee80211_channel *chan;
4174
4175 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4176
4177 if (!chan) {
2a519311
JB		 4178 err = -EINVAL;
4179 goto out_free;
4180 }
584991dc
JB		 4181
4182 /* ignore disabled channels */
4183 if (chan->flags & IEEE80211_CHAN_DISABLED)
4184 continue;
4185
4186 request->channels[i] = chan;
2a519311
JB		 4187 i++;
4188 }
4189 } else {
34850ab2
JB		 4190 enum ieee80211_band band;
4191
2a519311 4192 /* all channels */
2a519311
JB		 4193 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4194 int j;
4195 if (!wiphy->bands[band])
4196 continue;
4197 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4198 struct ieee80211_channel *chan;
4199
4200 chan = &wiphy->bands[band]->channels[j];
4201
4202 if (chan->flags & IEEE80211_CHAN_DISABLED)
4203 continue;
4204
4205 request->channels[i] = chan;
2a519311
JB		 4206 i++;
4207 }
4208 }
4209 }
4210
584991dc
JB		 4211 if (!i) {
4212 err = -EINVAL;
4213 goto out_free;
4214 }
4215
4216 request->n_channels = i;
4217
2a519311
JB		 4218 i = 0;
4219 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4220 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4221 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4222 err = -EINVAL;
4223 goto out_free;
4224 }
57a27e1d 4225 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4226 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4227 i++;
4228 }
4229 }
4230
70692ad2
JM		 4231 if (info->attrs[NL80211_ATTR_IE]) {
4232 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4233 memcpy((void *)request->ie,
4234 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4235 request->ie_len);
4236 }
4237
34850ab2 4238 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4239 if (wiphy->bands[i])
4240 request->rates[i] =
4241 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4242
4243 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4244 nla_for_each_nested(attr,
4245 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4246 tmp) {
4247 enum ieee80211_band band = nla_type(attr);
4248
84404623 4249 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4250 err = -EINVAL;
4251 goto out_free;
4252 }
4253 err = ieee80211_get_ratemask(wiphy->bands[band],
4254 nla_data(attr),
4255 nla_len(attr),
4256 &request->rates[band]);
4257 if (err)
4258 goto out_free;
4259 }
4260 }
4261
e9f935e3
RM		 4262 request->no_cck =
4263 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4264
463d0183 4265 request->dev = dev;
79c97e97 4266 request->wiphy = &rdev->wiphy;
2a519311 4267
79c97e97
JB		 4268 rdev->scan_req = request;
4269 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 4270
463d0183 4271 if (!err) {
79c97e97 4272 nl80211_send_scan_start(rdev, dev);
463d0183 4273 dev_hold(dev);
4c476991 4274 } else {
2a519311 4275 out_free:
79c97e97 4276 rdev->scan_req = NULL;
2a519311
JB		 4277 kfree(request);
4278 }
3b85875a 4279
2a519311
JB		 4280 return err;
4281}
4282
807f8a8c
LC		 4283static int nl80211_start_sched_scan(struct sk_buff *skb,
4284 struct genl_info *info)
4285{
4286 struct cfg80211_sched_scan_request *request;
4287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4288 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4289 struct nlattr *attr;
4290 struct wiphy *wiphy;
a1f1c21c 4291 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4292 u32 interval;
807f8a8c
LC		 4293 enum ieee80211_band band;
4294 size_t ie_len;
a1f1c21c 4295 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4296
4297 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4298 !rdev->ops->sched_scan_start)
4299 return -EOPNOTSUPP;
4300
4301 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4302 return -EINVAL;
4303
bbe6ad6d
LC		 4304 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4305 return -EINVAL;
4306
4307 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4308 if (interval == 0)
4309 return -EINVAL;
4310
807f8a8c
LC		 4311 wiphy = &rdev->wiphy;
4312
4313 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4314 n_channels = validate_scan_freqs(
4315 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4316 if (!n_channels)
4317 return -EINVAL;
4318 } else {
4319 n_channels = 0;
4320
4321 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4322 if (wiphy->bands[band])
4323 n_channels += wiphy->bands[band]->n_channels;
4324 }
4325
4326 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4327 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4328 tmp)
4329 n_ssids++;
4330
93b6aa69 4331 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4332 return -EINVAL;
4333
a1f1c21c
LC		 4334 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4335 nla_for_each_nested(attr,
4336 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4337 tmp)
4338 n_match_sets++;
4339
4340 if (n_match_sets > wiphy->max_match_sets)
4341 return -EINVAL;
4342
807f8a8c
LC		 4343 if (info->attrs[NL80211_ATTR_IE])
4344 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4345 else
4346 ie_len = 0;
4347
5a865bad 4348 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4349 return -EINVAL;
4350
c10841ca
LC		 4351 mutex_lock(&rdev->sched_scan_mtx);
4352
4353 if (rdev->sched_scan_req) {
4354 err = -EINPROGRESS;
4355 goto out;
4356 }
4357
807f8a8c 4358 request = kzalloc(sizeof(*request)
a2cd43c5 4359 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4360 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4361 + sizeof(*request->channels) * n_channels
807f8a8c 4362 + ie_len, GFP_KERNEL);
c10841ca
LC		 4363 if (!request) {
4364 err = -ENOMEM;
4365 goto out;
4366 }
807f8a8c
LC		 4367
4368 if (n_ssids)
4369 request->ssids = (void *)&request->channels[n_channels];
4370 request->n_ssids = n_ssids;
4371 if (ie_len) {
4372 if (request->ssids)
4373 request->ie = (void *)(request->ssids + n_ssids);
4374 else
4375 request->ie = (void *)(request->channels + n_channels);
4376 }
4377
a1f1c21c
LC		 4378 if (n_match_sets) {
4379 if (request->ie)
4380 request->match_sets = (void *)(request->ie + ie_len);
4381 else if (request->ssids)
4382 request->match_sets =
4383 (void *)(request->ssids + n_ssids);
4384 else
4385 request->match_sets =
4386 (void *)(request->channels + n_channels);
4387 }
4388 request->n_match_sets = n_match_sets;
4389
807f8a8c
LC		 4390 i = 0;
4391 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4392 /* user specified, bail out if channel not found */
4393 nla_for_each_nested(attr,
4394 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4395 tmp) {
4396 struct ieee80211_channel *chan;
4397
4398 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4399
4400 if (!chan) {
4401 err = -EINVAL;
4402 goto out_free;
4403 }
4404
4405 /* ignore disabled channels */
4406 if (chan->flags & IEEE80211_CHAN_DISABLED)
4407 continue;
4408
4409 request->channels[i] = chan;
4410 i++;
4411 }
4412 } else {
4413 /* all channels */
4414 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4415 int j;
4416 if (!wiphy->bands[band])
4417 continue;
4418 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4419 struct ieee80211_channel *chan;
4420
4421 chan = &wiphy->bands[band]->channels[j];
4422
4423 if (chan->flags & IEEE80211_CHAN_DISABLED)
4424 continue;
4425
4426 request->channels[i] = chan;
4427 i++;
4428 }
4429 }
4430 }
4431
4432 if (!i) {
4433 err = -EINVAL;
4434 goto out_free;
4435 }
4436
4437 request->n_channels = i;
4438
4439 i = 0;
4440 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4441 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4442 tmp) {
57a27e1d 4443 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4444 err = -EINVAL;
4445 goto out_free;
4446 }
57a27e1d 4447 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4448 memcpy(request->ssids[i].ssid, nla_data(attr),
4449 nla_len(attr));
807f8a8c
LC		 4450 i++;
4451 }
4452 }
4453
a1f1c21c
LC		 4454 i = 0;
4455 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4456 nla_for_each_nested(attr,
4457 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4458 tmp) {
88e920b4 4459 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4460
4461 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4462 nla_data(attr), nla_len(attr),
4463 nl80211_match_policy);
4a4ab0d7 4464 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4465 if (ssid) {
4466 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4467 err = -EINVAL;
4468 goto out_free;
4469 }
4470 memcpy(request->match_sets[i].ssid.ssid,
4471 nla_data(ssid), nla_len(ssid));
4472 request->match_sets[i].ssid.ssid_len =
4473 nla_len(ssid);
4474 }
88e920b4
TP		 4475 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4476 if (rssi)
4477 request->rssi_thold = nla_get_u32(rssi);
4478 else
4479 request->rssi_thold =
4480 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4481 i++;
4482 }
4483 }
4484
807f8a8c
LC		 4485 if (info->attrs[NL80211_ATTR_IE]) {
4486 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4487 memcpy((void *)request->ie,
4488 nla_data(info->attrs[NL80211_ATTR_IE]),
4489 request->ie_len);
4490 }
4491
4492 request->dev = dev;
4493 request->wiphy = &rdev->wiphy;
bbe6ad6d 4494 request->interval = interval;
807f8a8c
LC		 4495
4496 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4497 if (!err) {
4498 rdev->sched_scan_req = request;
4499 nl80211_send_sched_scan(rdev, dev,
4500 NL80211_CMD_START_SCHED_SCAN);
4501 goto out;
4502 }
4503
4504out_free:
4505 kfree(request);
4506out:
c10841ca 4507 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4508 return err;
4509}
4510
4511static int nl80211_stop_sched_scan(struct sk_buff *skb,
4512 struct genl_info *info)
4513{
4514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4515 int err;
807f8a8c
LC		 4516
4517 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4518 !rdev->ops->sched_scan_stop)
4519 return -EOPNOTSUPP;
4520
c10841ca
LC		 4521 mutex_lock(&rdev->sched_scan_mtx);
4522 err = __cfg80211_stop_sched_scan(rdev, false);
4523 mutex_unlock(&rdev->sched_scan_mtx);
4524
4525 return err;
807f8a8c
LC		 4526}
4527
9720bb3a
JB		 4528static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4529 u32 seq, int flags,
2a519311 4530 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4531 struct wireless_dev *wdev,
4532 struct cfg80211_internal_bss *intbss)
2a519311 4533{
48ab905d 4534 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4535 void *hdr;
4536 struct nlattr *bss;
48ab905d
JB		 4537
4538 ASSERT_WDEV_LOCK(wdev);
2a519311 4539
9720bb3a 4540 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4541 NL80211_CMD_NEW_SCAN_RESULTS);
4542 if (!hdr)
4543 return -1;
4544
9720bb3a
JB		 4545 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4546
9360ffd1
DM		 4547 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4548 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4549 goto nla_put_failure;
2a519311
JB		 4550
4551 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4552 if (!bss)
4553 goto nla_put_failure;
9360ffd1
DM		 4554 if ((!is_zero_ether_addr(res->bssid) &&
4555 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4556 (res->information_elements && res->len_information_elements &&
4557 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4558 res->len_information_elements,
4559 res->information_elements)) ||
4560 (res->beacon_ies && res->len_beacon_ies &&
4561 res->beacon_ies != res->information_elements &&
4562 nla_put(msg, NL80211_BSS_BEACON_IES,
4563 res->len_beacon_ies, res->beacon_ies)))
4564 goto nla_put_failure;
4565 if (res->tsf &&
4566 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4567 goto nla_put_failure;
4568 if (res->beacon_interval &&
4569 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4570 goto nla_put_failure;
4571 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4572 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4573 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4574 jiffies_to_msecs(jiffies - intbss->ts)))
4575 goto nla_put_failure;
2a519311 4576
77965c97 4577 switch (rdev->wiphy.signal_type) {
2a519311 4578 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4579 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4580 goto nla_put_failure;
2a519311
JB		 4581 break;
4582 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4583 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4584 goto nla_put_failure;
2a519311
JB		 4585 break;
4586 default:
4587 break;
4588 }
4589
48ab905d 4590 switch (wdev->iftype) {
074ac8df 4591 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4592 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4593 if (intbss == wdev->current_bss &&
4594 nla_put_u32(msg, NL80211_BSS_STATUS,
4595 NL80211_BSS_STATUS_ASSOCIATED))
4596 goto nla_put_failure;
48ab905d
JB		 4597 break;
4598 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4599 if (intbss == wdev->current_bss &&
4600 nla_put_u32(msg, NL80211_BSS_STATUS,
4601 NL80211_BSS_STATUS_IBSS_JOINED))
4602 goto nla_put_failure;
48ab905d
JB		 4603 break;
4604 default:
4605 break;
4606 }
4607
2a519311
JB		 4608 nla_nest_end(msg, bss);
4609
4610 return genlmsg_end(msg, hdr);
4611
4612 nla_put_failure:
4613 genlmsg_cancel(msg, hdr);
4614 return -EMSGSIZE;
4615}
4616
4617static int nl80211_dump_scan(struct sk_buff *skb,
4618 struct netlink_callback *cb)
4619{
48ab905d
JB		 4620 struct cfg80211_registered_device *rdev;
4621 struct net_device *dev;
2a519311 4622 struct cfg80211_internal_bss *scan;
48ab905d 4623 struct wireless_dev *wdev;
2a519311
JB		 4624 int start = cb->args[1], idx = 0;
4625 int err;
4626
67748893
JB		 4627 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4628 if (err)
4629 return err;
2a519311 4630
48ab905d 4631 wdev = dev->ieee80211_ptr;
2a519311 4632
48ab905d
JB		 4633 wdev_lock(wdev);
4634 spin_lock_bh(&rdev->bss_lock);
4635 cfg80211_bss_expire(rdev);
4636
9720bb3a
JB		 4637 cb->seq = rdev->bss_generation;
4638
48ab905d 4639 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4640 if (++idx <= start)
4641 continue;
9720bb3a 4642 if (nl80211_send_bss(skb, cb,
2a519311 4643 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4644 rdev, wdev, scan) < 0) {
2a519311 4645 idx--;
67748893 4646 break;
2a519311
JB		 4647 }
4648 }
4649
48ab905d
JB		 4650 spin_unlock_bh(&rdev->bss_lock);
4651 wdev_unlock(wdev);
2a519311
JB		 4652
4653 cb->args[1] = idx;
67748893 4654 nl80211_finish_netdev_dump(rdev);
2a519311 4655
67748893 4656 return skb->len;
2a519311
JB		 4657}
4658
61fa713c
HS		 4659static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4660 int flags, struct net_device *dev,
4661 struct survey_info *survey)
4662{
4663 void *hdr;
4664 struct nlattr *infoattr;
4665
61fa713c
HS		 4666 hdr = nl80211hdr_put(msg, pid, seq, flags,
4667 NL80211_CMD_NEW_SURVEY_RESULTS);
4668 if (!hdr)
4669 return -ENOMEM;
4670
9360ffd1
DM		 4671 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4672 goto nla_put_failure;
61fa713c
HS		 4673
4674 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4675 if (!infoattr)
4676 goto nla_put_failure;
4677
9360ffd1
DM		 4678 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4679 survey->channel->center_freq))
4680 goto nla_put_failure;
4681
4682 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4683 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4684 goto nla_put_failure;
4685 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4686 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4687 goto nla_put_failure;
4688 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4689 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4690 survey->channel_time))
4691 goto nla_put_failure;
4692 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4693 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4694 survey->channel_time_busy))
4695 goto nla_put_failure;
4696 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4697 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4698 survey->channel_time_ext_busy))
4699 goto nla_put_failure;
4700 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4701 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4702 survey->channel_time_rx))
4703 goto nla_put_failure;
4704 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4705 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4706 survey->channel_time_tx))
4707 goto nla_put_failure;
61fa713c
HS		 4708
4709 nla_nest_end(msg, infoattr);
4710
4711 return genlmsg_end(msg, hdr);
4712
4713 nla_put_failure:
4714 genlmsg_cancel(msg, hdr);
4715 return -EMSGSIZE;
4716}
4717
4718static int nl80211_dump_survey(struct sk_buff *skb,
4719 struct netlink_callback *cb)
4720{
4721 struct survey_info survey;
4722 struct cfg80211_registered_device *dev;
4723 struct net_device *netdev;
61fa713c
HS		 4724 int survey_idx = cb->args[1];
4725 int res;
4726
67748893
JB		 4727 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4728 if (res)
4729 return res;
61fa713c
HS		 4730
4731 if (!dev->ops->dump_survey) {
4732 res = -EOPNOTSUPP;
4733 goto out_err;
4734 }
4735
4736 while (1) {
180cdc79
LR		 4737 struct ieee80211_channel *chan;
4738
61fa713c
HS		 4739 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4740 &survey);
4741 if (res == -ENOENT)
4742 break;
4743 if (res)
4744 goto out_err;
4745
180cdc79
LR		 4746 /* Survey without a channel doesn't make sense */
4747 if (!survey.channel) {
4748 res = -EINVAL;
4749 goto out;
4750 }
4751
4752 chan = ieee80211_get_channel(&dev->wiphy,
4753 survey.channel->center_freq);
4754 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4755 survey_idx++;
4756 continue;
4757 }
4758
61fa713c
HS		 4759 if (nl80211_send_survey(skb,
4760 NETLINK_CB(cb->skb).pid,
4761 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4762 netdev,
4763 &survey) < 0)
4764 goto out;
4765 survey_idx++;
4766 }
4767
4768 out:
4769 cb->args[1] = survey_idx;
4770 res = skb->len;
4771 out_err:
67748893 4772 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4773 return res;
4774}
4775
255e737e
JM		 4776static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4777{
b23aa676
SO		 4778 return auth_type <= NL80211_AUTHTYPE_MAX;
4779}
4780
4781static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4782{
4783 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4784 NL80211_WPA_VERSION_2));
4785}
4786
636a5d36
JM		 4787static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4788{
4c476991
JB		 4789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4790 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4791 struct ieee80211_channel *chan;
4792 const u8 *bssid, *ssid, *ie = NULL;
4793 int err, ssid_len, ie_len = 0;
4794 enum nl80211_auth_type auth_type;
fffd0934 4795 struct key_parse key;
d5cdfacb 4796 bool local_state_change;
636a5d36 4797
f4a11bb0
JB		 4798 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4799 return -EINVAL;
4800
4801 if (!info->attrs[NL80211_ATTR_MAC])
4802 return -EINVAL;
4803
1778092e
JM		 4804 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4805 return -EINVAL;
4806
19957bb3
JB		 4807 if (!info->attrs[NL80211_ATTR_SSID])
4808 return -EINVAL;
4809
4810 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4811 return -EINVAL;
4812
fffd0934
JB		 4813 err = nl80211_parse_key(info, &key);
4814 if (err)
4815 return err;
4816
4817 if (key.idx >= 0) {
e31b8213
JB		 4818 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4819 return -EINVAL;
fffd0934
JB		 4820 if (!key.p.key || !key.p.key_len)
4821 return -EINVAL;
4822 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4823 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4824 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4825 key.p.key_len != WLAN_KEY_LEN_WEP104))
4826 return -EINVAL;
4827 if (key.idx > 4)
4828 return -EINVAL;
4829 } else {
4830 key.p.key_len = 0;
4831 key.p.key = NULL;
4832 }
4833
afea0b7a
JB		 4834 if (key.idx >= 0) {
4835 int i;
4836 bool ok = false;
4837 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4838 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4839 ok = true;
4840 break;
4841 }
4842 }
4c476991
JB		 4843 if (!ok)
4844 return -EINVAL;
afea0b7a
JB		 4845 }
4846
4c476991
JB		 4847 if (!rdev->ops->auth)
4848 return -EOPNOTSUPP;
636a5d36 4849
074ac8df 4850 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4851 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4852 return -EOPNOTSUPP;
eec60b03 4853
19957bb3 4854 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4855 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4856 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4857 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4858 return -EINVAL;
636a5d36 4859
19957bb3
JB		 4860 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4861 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4862
4863 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4864 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4865 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4866 }
4867
19957bb3 4868 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4869 if (!nl80211_valid_auth_type(auth_type))
4870 return -EINVAL;
636a5d36 4871
d5cdfacb
JM		 4872 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4873
95de817b
JB		 4874 /*
4875 * Since we no longer track auth state, ignore
4876 * requests to only change local state.
4877 */
4878 if (local_state_change)
4879 return 0;
4880
4c476991
JB		 4881 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4882 ssid, ssid_len, ie, ie_len,
95de817b 4883 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 4884}
4885
c0692b8f
JB		 4886static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4887 struct genl_info *info,
3dc27d25
JB		 4888 struct cfg80211_crypto_settings *settings,
4889 int cipher_limit)
b23aa676 4890{
c0b2bbd8
JB		 4891 memset(settings, 0, sizeof(*settings));
4892
b23aa676
SO		 4893 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4894
c0692b8f
JB		 4895 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4896 u16 proto;
4897 proto = nla_get_u16(
4898 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4899 settings->control_port_ethertype = cpu_to_be16(proto);
4900 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4901 proto != ETH_P_PAE)
4902 return -EINVAL;
4903 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4904 settings->control_port_no_encrypt = true;
4905 } else
4906 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4907
b23aa676
SO		 4908 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4909 void *data;
4910 int len, i;
4911
4912 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4913 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4914 settings->n_ciphers_pairwise = len / sizeof(u32);
4915
4916 if (len % sizeof(u32))
4917 return -EINVAL;
4918
3dc27d25 4919 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4920 return -EINVAL;
4921
4922 memcpy(settings->ciphers_pairwise, data, len);
4923
4924 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4925 if (!cfg80211_supported_cipher_suite(
4926 &rdev->wiphy,
b23aa676
SO		 4927 settings->ciphers_pairwise[i]))
4928 return -EINVAL;
4929 }
4930
4931 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4932 settings->cipher_group =
4933 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4934 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4935 settings->cipher_group))
b23aa676
SO		 4936 return -EINVAL;
4937 }
4938
4939 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4940 settings->wpa_versions =
4941 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4942 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4943 return -EINVAL;
4944 }
4945
4946 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4947 void *data;
6d30240e 4948 int len;
b23aa676
SO		 4949
4950 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4951 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4952 settings->n_akm_suites = len / sizeof(u32);
4953
4954 if (len % sizeof(u32))
4955 return -EINVAL;
4956
1b9ca027
JM		 4957 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4958 return -EINVAL;
4959
b23aa676 4960 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4961 }
4962
4963 return 0;
4964}
4965
636a5d36
JM		 4966static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4967{
4c476991
JB		 4968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4969 struct net_device *dev = info->user_ptr[1];
19957bb3 4970 struct cfg80211_crypto_settings crypto;
f444de05 4971 struct ieee80211_channel *chan;
3e5d7649 4972 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4973 int err, ssid_len, ie_len = 0;
4974 bool use_mfp = false;
7e7c8926
BG		 4975 u32 flags = 0;
4976 struct ieee80211_ht_cap *ht_capa = NULL;
4977 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4978
f4a11bb0
JB		 4979 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4980 return -EINVAL;
4981
4982 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4983 !info->attrs[NL80211_ATTR_SSID] ||
4984 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4985 return -EINVAL;
4986
4c476991
JB		 4987 if (!rdev->ops->assoc)
4988 return -EOPNOTSUPP;
636a5d36 4989
074ac8df 4990 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4991 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4992 return -EOPNOTSUPP;
eec60b03 4993
19957bb3 4994 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4995
19957bb3
JB		 4996 chan = ieee80211_get_channel(&rdev->wiphy,
4997 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4998 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4999 return -EINVAL;
636a5d36 5000
19957bb3
JB		 5001 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5002 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5003
5004 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5005 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5006 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5007 }
5008
dc6382ce 5009 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5010 enum nl80211_mfp mfp =
dc6382ce 5011 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5012 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5013 use_mfp = true;
4c476991
JB		 5014 else if (mfp != NL80211_MFP_NO)
5015 return -EINVAL;
dc6382ce
JM		 5016 }
5017
3e5d7649
JB		 5018 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5019 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5020
7e7c8926
BG		 5021 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5022 flags |= ASSOC_REQ_DISABLE_HT;
5023
5024 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5025 ht_capa_mask =
5026 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5027
5028 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5029 if (!ht_capa_mask)
5030 return -EINVAL;
5031 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5032 }
5033
c0692b8f 5034 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5035 if (!err)
3e5d7649
JB		 5036 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5037 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5038 &crypto, flags, ht_capa,
5039 ht_capa_mask);
636a5d36 5040
636a5d36
JM		 5041 return err;
5042}
5043
5044static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5045{
4c476991
JB		 5046 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5047 struct net_device *dev = info->user_ptr[1];
19957bb3 5048 const u8 *ie = NULL, *bssid;
4c476991 5049 int ie_len = 0;
19957bb3 5050 u16 reason_code;
d5cdfacb 5051 bool local_state_change;
636a5d36 5052
f4a11bb0
JB		 5053 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5054 return -EINVAL;
5055
5056 if (!info->attrs[NL80211_ATTR_MAC])
5057 return -EINVAL;
5058
5059 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5060 return -EINVAL;
5061
4c476991
JB		 5062 if (!rdev->ops->deauth)
5063 return -EOPNOTSUPP;
636a5d36 5064
074ac8df 5065 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5066 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5067 return -EOPNOTSUPP;
eec60b03 5068
19957bb3 5069 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5070
19957bb3
JB		 5071 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5072 if (reason_code == 0) {
f4a11bb0 5073 /* Reason Code 0 is reserved */
4c476991 5074 return -EINVAL;
255e737e 5075 }
636a5d36
JM		 5076
5077 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5078 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5079 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5080 }
5081
d5cdfacb
JM		 5082 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5083
4c476991
JB		 5084 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5085 local_state_change);
636a5d36
JM		 5086}
5087
5088static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5089{
4c476991
JB		 5090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5091 struct net_device *dev = info->user_ptr[1];
19957bb3 5092 const u8 *ie = NULL, *bssid;
4c476991 5093 int ie_len = 0;
19957bb3 5094 u16 reason_code;
d5cdfacb 5095 bool local_state_change;
636a5d36 5096
f4a11bb0
JB		 5097 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5098 return -EINVAL;
5099
5100 if (!info->attrs[NL80211_ATTR_MAC])
5101 return -EINVAL;
5102
5103 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5104 return -EINVAL;
5105
4c476991
JB		 5106 if (!rdev->ops->disassoc)
5107 return -EOPNOTSUPP;
636a5d36 5108
074ac8df 5109 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5110 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5111 return -EOPNOTSUPP;
eec60b03 5112
19957bb3 5113 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5114
19957bb3
JB		 5115 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5116 if (reason_code == 0) {
f4a11bb0 5117 /* Reason Code 0 is reserved */
4c476991 5118 return -EINVAL;
255e737e 5119 }
636a5d36
JM		 5120
5121 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5122 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5123 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5124 }
5125
d5cdfacb
JM		 5126 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5127
4c476991
JB		 5128 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5129 local_state_change);
636a5d36
JM		 5130}
5131
dd5b4cc7
FF		 5132static bool
5133nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5134 int mcast_rate[IEEE80211_NUM_BANDS],
5135 int rateval)
5136{
5137 struct wiphy *wiphy = &rdev->wiphy;
5138 bool found = false;
5139 int band, i;
5140
5141 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5142 struct ieee80211_supported_band *sband;
5143
5144 sband = wiphy->bands[band];
5145 if (!sband)
5146 continue;
5147
5148 for (i = 0; i < sband->n_bitrates; i++) {
5149 if (sband->bitrates[i].bitrate == rateval) {
5150 mcast_rate[band] = i + 1;
5151 found = true;
5152 break;
5153 }
5154 }
5155 }
5156
5157 return found;
5158}
5159
04a773ad
JB		 5160static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5161{
4c476991
JB		 5162 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5163 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5164 struct cfg80211_ibss_params ibss;
5165 struct wiphy *wiphy;
fffd0934 5166 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5167 int err;
5168
8e30bc55
JB		 5169 memset(&ibss, 0, sizeof(ibss));
5170
04a773ad
JB		 5171 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5172 return -EINVAL;
5173
5174 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5175 !info->attrs[NL80211_ATTR_SSID] ||
5176 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5177 return -EINVAL;
5178
8e30bc55
JB		 5179 ibss.beacon_interval = 100;
5180
5181 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5182 ibss.beacon_interval =
5183 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5184 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5185 return -EINVAL;
5186 }
5187
4c476991
JB		 5188 if (!rdev->ops->join_ibss)
5189 return -EOPNOTSUPP;
04a773ad 5190
4c476991
JB		 5191 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5192 return -EOPNOTSUPP;
04a773ad 5193
79c97e97 5194 wiphy = &rdev->wiphy;
04a773ad 5195
39193498 5196 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5197 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5198
5199 if (!is_valid_ether_addr(ibss.bssid))
5200 return -EINVAL;
5201 }
04a773ad
JB		 5202 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5203 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5204
5205 if (info->attrs[NL80211_ATTR_IE]) {
5206 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5207 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5208 }
5209
54858ee5
AS		 5210 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5211 enum nl80211_channel_type channel_type;
5212
cd6c6598 5213 if (!nl80211_valid_channel_type(info, &channel_type))
54858ee5
AS		 5214 return -EINVAL;
5215
5216 if (channel_type != NL80211_CHAN_NO_HT &&
5217 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5218 return -EINVAL;
5219
5220 ibss.channel_type = channel_type;
5221 } else {
5222 ibss.channel_type = NL80211_CHAN_NO_HT;
5223 }
5224
5225 ibss.channel = rdev_freq_to_chan(rdev,
5226 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5227 ibss.channel_type);
04a773ad
JB		 5228 if (!ibss.channel ||
5229 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 5230 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5231 return -EINVAL;
04a773ad 5232
54858ee5
AS		 5233 /* Both channels should be able to initiate communication */
5234 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5235 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5236 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5237 ibss.channel_type))
5238 return -EINVAL;
5239
04a773ad 5240 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5241 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5242
fbd2c8dc
TP		 5243 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5244 u8 *rates =
5245 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5246 int n_rates =
5247 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5248 struct ieee80211_supported_band *sband =
5249 wiphy->bands[ibss.channel->band];
fbd2c8dc 5250
34850ab2
JB		 5251 err = ieee80211_get_ratemask(sband, rates, n_rates,
5252 &ibss.basic_rates);
5253 if (err)
5254 return err;
fbd2c8dc 5255 }
dd5b4cc7
FF		 5256
5257 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5258 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5259 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5260 return -EINVAL;
fbd2c8dc 5261
4c476991
JB		 5262 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5263 connkeys = nl80211_parse_connkeys(rdev,
5264 info->attrs[NL80211_ATTR_KEYS]);
5265 if (IS_ERR(connkeys))
5266 return PTR_ERR(connkeys);
5267 }
04a773ad 5268
267335d6
AQ		 5269 ibss.control_port =
5270 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5271
4c476991 5272 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5273 if (err)
5274 kfree(connkeys);
04a773ad
JB		 5275 return err;
5276}
5277
5278static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5279{
4c476991
JB		 5280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5281 struct net_device *dev = info->user_ptr[1];
04a773ad 5282
4c476991
JB		 5283 if (!rdev->ops->leave_ibss)
5284 return -EOPNOTSUPP;
04a773ad 5285
4c476991
JB		 5286 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5287 return -EOPNOTSUPP;
04a773ad 5288
4c476991 5289 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5290}
5291
aff89a9b
JB		 5292#ifdef CONFIG_NL80211_TESTMODE
5293static struct genl_multicast_group nl80211_testmode_mcgrp = {
5294 .name = "testmode",
5295};
5296
5297static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5298{
4c476991 5299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5300 int err;
5301
5302 if (!info->attrs[NL80211_ATTR_TESTDATA])
5303 return -EINVAL;
5304
aff89a9b
JB		 5305 err = -EOPNOTSUPP;
5306 if (rdev->ops->testmode_cmd) {
5307 rdev->testmode_info = info;
5308 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5309 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5310 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5311 rdev->testmode_info = NULL;
5312 }
5313
aff89a9b
JB		 5314 return err;
5315}
5316
71063f0e
WYG		 5317static int nl80211_testmode_dump(struct sk_buff *skb,
5318 struct netlink_callback *cb)
5319{
00918d33 5320 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5321 int err;
5322 long phy_idx;
5323 void *data = NULL;
5324 int data_len = 0;
5325
5326 if (cb->args[0]) {
5327 /*
5328 * 0 is a valid index, but not valid for args[0],
5329 * so we need to offset by 1.
5330 */
5331 phy_idx = cb->args[0] - 1;
5332 } else {
5333 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5334 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5335 nl80211_policy);
5336 if (err)
5337 return err;
00918d33 5338
2bd7e35d
JB		 5339 mutex_lock(&cfg80211_mutex);
5340 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5341 nl80211_fam.attrbuf);
5342 if (IS_ERR(rdev)) {
5343 mutex_unlock(&cfg80211_mutex);
5344 return PTR_ERR(rdev);
00918d33 5345 }
2bd7e35d
JB		 5346 phy_idx = rdev->wiphy_idx;
5347 rdev = NULL;
5348 mutex_unlock(&cfg80211_mutex);
5349
71063f0e
WYG		 5350 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5351 cb->args[1] =
5352 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5353 }
5354
5355 if (cb->args[1]) {
5356 data = nla_data((void *)cb->args[1]);
5357 data_len = nla_len((void *)cb->args[1]);
5358 }
5359
5360 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5361 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5362 if (!rdev) {
71063f0e
WYG		 5363 mutex_unlock(&cfg80211_mutex);
5364 return -ENOENT;
5365 }
00918d33 5366 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5367 mutex_unlock(&cfg80211_mutex);
5368
00918d33 5369 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5370 err = -EOPNOTSUPP;
5371 goto out_err;
5372 }
5373
5374 while (1) {
5375 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5376 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5377 NL80211_CMD_TESTMODE);
5378 struct nlattr *tmdata;
5379
9360ffd1 5380 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5381 genlmsg_cancel(skb, hdr);
5382 break;
5383 }
5384
5385 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5386 if (!tmdata) {
5387 genlmsg_cancel(skb, hdr);
5388 break;
5389 }
00918d33
JB		 5390 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5391 data, data_len);
71063f0e
WYG		 5392 nla_nest_end(skb, tmdata);
5393
5394 if (err == -ENOBUFS || err == -ENOENT) {
5395 genlmsg_cancel(skb, hdr);
5396 break;
5397 } else if (err) {
5398 genlmsg_cancel(skb, hdr);
5399 goto out_err;
5400 }
5401
5402 genlmsg_end(skb, hdr);
5403 }
5404
5405 err = skb->len;
5406 /* see above */
5407 cb->args[0] = phy_idx + 1;
5408 out_err:
00918d33 5409 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5410 return err;
5411}
5412
aff89a9b
JB		 5413static struct sk_buff *
5414__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5415 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5416{
5417 struct sk_buff *skb;
5418 void *hdr;
5419 struct nlattr *data;
5420
5421 skb = nlmsg_new(approxlen + 100, gfp);
5422 if (!skb)
5423 return NULL;
5424
5425 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5426 if (!hdr) {
5427 kfree_skb(skb);
5428 return NULL;
5429 }
5430
9360ffd1
DM		 5431 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5432 goto nla_put_failure;
aff89a9b
JB		 5433 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5434
5435 ((void **)skb->cb)[0] = rdev;
5436 ((void **)skb->cb)[1] = hdr;
5437 ((void **)skb->cb)[2] = data;
5438
5439 return skb;
5440
5441 nla_put_failure:
5442 kfree_skb(skb);
5443 return NULL;
5444}
5445
5446struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5447 int approxlen)
5448{
5449 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5450
5451 if (WARN_ON(!rdev->testmode_info))
5452 return NULL;
5453
5454 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5455 rdev->testmode_info->snd_pid,
5456 rdev->testmode_info->snd_seq,
5457 GFP_KERNEL);
5458}
5459EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5460
5461int cfg80211_testmode_reply(struct sk_buff *skb)
5462{
5463 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5464 void *hdr = ((void **)skb->cb)[1];
5465 struct nlattr *data = ((void **)skb->cb)[2];
5466
5467 if (WARN_ON(!rdev->testmode_info)) {
5468 kfree_skb(skb);
5469 return -EINVAL;
5470 }
5471
5472 nla_nest_end(skb, data);
5473 genlmsg_end(skb, hdr);
5474 return genlmsg_reply(skb, rdev->testmode_info);
5475}
5476EXPORT_SYMBOL(cfg80211_testmode_reply);
5477
5478struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5479 int approxlen, gfp_t gfp)
5480{
5481 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5482
5483 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5484}
5485EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5486
5487void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5488{
5489 void *hdr = ((void **)skb->cb)[1];
5490 struct nlattr *data = ((void **)skb->cb)[2];
5491
5492 nla_nest_end(skb, data);
5493 genlmsg_end(skb, hdr);
5494 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5495}
5496EXPORT_SYMBOL(cfg80211_testmode_event);
5497#endif
5498
b23aa676
SO		 5499static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5500{
4c476991
JB		 5501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5502 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5503 struct cfg80211_connect_params connect;
5504 struct wiphy *wiphy;
fffd0934 5505 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5506 int err;
5507
5508 memset(&connect, 0, sizeof(connect));
5509
5510 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5511 return -EINVAL;
5512
5513 if (!info->attrs[NL80211_ATTR_SSID] ||
5514 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5515 return -EINVAL;
5516
5517 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5518 connect.auth_type =
5519 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5520 if (!nl80211_valid_auth_type(connect.auth_type))
5521 return -EINVAL;
5522 } else
5523 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5524
5525 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5526
c0692b8f 5527 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5528 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5529 if (err)
5530 return err;
b23aa676 5531
074ac8df 5532 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5533 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5534 return -EOPNOTSUPP;
b23aa676 5535
79c97e97 5536 wiphy = &rdev->wiphy;
b23aa676 5537
4486ea98
BS		 5538 connect.bg_scan_period = -1;
5539 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5540 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5541 connect.bg_scan_period =
5542 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5543 }
5544
b23aa676
SO		 5545 if (info->attrs[NL80211_ATTR_MAC])
5546 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5547 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5548 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5549
5550 if (info->attrs[NL80211_ATTR_IE]) {
5551 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5552 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5553 }
5554
5555 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5556 connect.channel =
5557 ieee80211_get_channel(wiphy,
5558 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5559 if (!connect.channel ||
4c476991
JB		 5560 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5561 return -EINVAL;
b23aa676
SO		 5562 }
5563
fffd0934
JB		 5564 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5565 connkeys = nl80211_parse_connkeys(rdev,
5566 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5567 if (IS_ERR(connkeys))
5568 return PTR_ERR(connkeys);
fffd0934
JB		 5569 }
5570
7e7c8926
BG		 5571 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5572 connect.flags |= ASSOC_REQ_DISABLE_HT;
5573
5574 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5575 memcpy(&connect.ht_capa_mask,
5576 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5577 sizeof(connect.ht_capa_mask));
5578
5579 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5580 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5581 return -EINVAL;
5582 memcpy(&connect.ht_capa,
5583 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5584 sizeof(connect.ht_capa));
5585 }
5586
fffd0934 5587 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5588 if (err)
5589 kfree(connkeys);
b23aa676
SO		 5590 return err;
5591}
5592
5593static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5594{
4c476991
JB		 5595 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5596 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5597 u16 reason;
5598
5599 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5600 reason = WLAN_REASON_DEAUTH_LEAVING;
5601 else
5602 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5603
5604 if (reason == 0)
5605 return -EINVAL;
5606
074ac8df 5607 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5608 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5609 return -EOPNOTSUPP;
b23aa676 5610
4c476991 5611 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5612}
5613
463d0183
JB		 5614static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5615{
4c476991 5616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5617 struct net *net;
5618 int err;
5619 u32 pid;
5620
5621 if (!info->attrs[NL80211_ATTR_PID])
5622 return -EINVAL;
5623
5624 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5625
463d0183 5626 net = get_net_ns_by_pid(pid);
4c476991
JB		 5627 if (IS_ERR(net))
5628 return PTR_ERR(net);
463d0183
JB		 5629
5630 err = 0;
5631
5632 /* check if anything to do */
4c476991
JB		 5633 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5634 err = cfg80211_switch_netns(rdev, net);
463d0183 5635
463d0183 5636 put_net(net);
463d0183
JB		 5637 return err;
5638}
5639
67fbb16b
SO		 5640static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5641{
4c476991 5642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5643 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5644 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5645 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5646 struct cfg80211_pmksa pmksa;
5647
5648 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5649
5650 if (!info->attrs[NL80211_ATTR_MAC])
5651 return -EINVAL;
5652
5653 if (!info->attrs[NL80211_ATTR_PMKID])
5654 return -EINVAL;
5655
67fbb16b
SO		 5656 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5657 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5658
074ac8df 5659 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5660 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5661 return -EOPNOTSUPP;
67fbb16b
SO		 5662
5663 switch (info->genlhdr->cmd) {
5664 case NL80211_CMD_SET_PMKSA:
5665 rdev_ops = rdev->ops->set_pmksa;
5666 break;
5667 case NL80211_CMD_DEL_PMKSA:
5668 rdev_ops = rdev->ops->del_pmksa;
5669 break;
5670 default:
5671 WARN_ON(1);
5672 break;
5673 }
5674
4c476991
JB		 5675 if (!rdev_ops)
5676 return -EOPNOTSUPP;
67fbb16b 5677
4c476991 5678 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5679}
5680
5681static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5682{
4c476991
JB		 5683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5684 struct net_device *dev = info->user_ptr[1];
67fbb16b 5685
074ac8df 5686 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5687 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5688 return -EOPNOTSUPP;
67fbb16b 5689
4c476991
JB		 5690 if (!rdev->ops->flush_pmksa)
5691 return -EOPNOTSUPP;
67fbb16b 5692
4c476991 5693 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5694}
5695
109086ce
AN		 5696static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5697{
5698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5699 struct net_device *dev = info->user_ptr[1];
5700 u8 action_code, dialog_token;
5701 u16 status_code;
5702 u8 *peer;
5703
5704 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5705 !rdev->ops->tdls_mgmt)
5706 return -EOPNOTSUPP;
5707
5708 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5709 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5710 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5711 !info->attrs[NL80211_ATTR_IE] ||
5712 !info->attrs[NL80211_ATTR_MAC])
5713 return -EINVAL;
5714
5715 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5716 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5717 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5718 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5719
5720 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5721 dialog_token, status_code,
5722 nla_data(info->attrs[NL80211_ATTR_IE]),
5723 nla_len(info->attrs[NL80211_ATTR_IE]));
5724}
5725
5726static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5727{
5728 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5729 struct net_device *dev = info->user_ptr[1];
5730 enum nl80211_tdls_operation operation;
5731 u8 *peer;
5732
5733 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5734 !rdev->ops->tdls_oper)
5735 return -EOPNOTSUPP;
5736
5737 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5738 !info->attrs[NL80211_ATTR_MAC])
5739 return -EINVAL;
5740
5741 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5742 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5743
5744 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5745}
5746
9588bbd5
JM		 5747static int nl80211_remain_on_channel(struct sk_buff *skb,
5748 struct genl_info *info)
5749{
4c476991
JB		 5750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5751 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5752 struct ieee80211_channel *chan;
5753 struct sk_buff *msg;
5754 void *hdr;
5755 u64 cookie;
5756 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5757 u32 freq, duration;
5758 int err;
5759
5760 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5761 !info->attrs[NL80211_ATTR_DURATION])
5762 return -EINVAL;
5763
5764 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5765
ebf348fc
JB		 5766 if (!rdev->ops->remain_on_channel ||
5767 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5768 return -EOPNOTSUPP;
5769
9588bbd5 5770 /*
ebf348fc
JB		 5771 * We should be on that channel for at least a minimum amount of
5772 * time (10ms) but no longer than the driver supports.
9588bbd5 5773 */
ebf348fc 5774 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 5775 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5776 return -EINVAL;
5777
cd6c6598
JB		 5778 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5779 !nl80211_valid_channel_type(info, &channel_type))
5780 return -EINVAL;
9588bbd5
JM		 5781
5782 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5783 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5784 if (chan == NULL)
5785 return -EINVAL;
9588bbd5
JM		 5786
5787 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5788 if (!msg)
5789 return -ENOMEM;
9588bbd5
JM		 5790
5791 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5792 NL80211_CMD_REMAIN_ON_CHANNEL);
5793
5794 if (IS_ERR(hdr)) {
5795 err = PTR_ERR(hdr);
5796 goto free_msg;
5797 }
5798
5799 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5800 channel_type, duration, &cookie);
5801
5802 if (err)
5803 goto free_msg;
5804
9360ffd1
DM		 5805 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5806 goto nla_put_failure;
9588bbd5
JM		 5807
5808 genlmsg_end(msg, hdr);
4c476991
JB		 5809
5810 return genlmsg_reply(msg, info);
9588bbd5
JM		 5811
5812 nla_put_failure:
5813 err = -ENOBUFS;
5814 free_msg:
5815 nlmsg_free(msg);
9588bbd5
JM		 5816 return err;
5817}
5818
5819static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5820 struct genl_info *info)
5821{
4c476991
JB		 5822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5823 struct net_device *dev = info->user_ptr[1];
9588bbd5 5824 u64 cookie;
9588bbd5
JM		 5825
5826 if (!info->attrs[NL80211_ATTR_COOKIE])
5827 return -EINVAL;
5828
4c476991
JB		 5829 if (!rdev->ops->cancel_remain_on_channel)
5830 return -EOPNOTSUPP;
9588bbd5 5831
9588bbd5
JM		 5832 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5833
4c476991 5834 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5835}
5836
13ae75b1
JM		 5837static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5838 u8 *rates, u8 rates_len)
5839{
5840 u8 i;
5841 u32 mask = 0;
5842
5843 for (i = 0; i < rates_len; i++) {
5844 int rate = (rates[i] & 0x7f) * 5;
5845 int ridx;
5846 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5847 struct ieee80211_rate *srate =
5848 &sband->bitrates[ridx];
5849 if (rate == srate->bitrate) {
5850 mask |= 1 << ridx;
5851 break;
5852 }
5853 }
5854 if (ridx == sband->n_bitrates)
5855 return 0; /* rate not found */
5856 }
5857
5858 return mask;
5859}
5860
24db78c0
SW		 5861static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5862 u8 *rates, u8 rates_len,
5863 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5864{
5865 u8 i;
5866
5867 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5868
5869 for (i = 0; i < rates_len; i++) {
5870 int ridx, rbit;
5871
5872 ridx = rates[i] / 8;
5873 rbit = BIT(rates[i] % 8);
5874
5875 /* check validity */
910570b5 5876 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 5877 return false;
5878
5879 /* check availability */
5880 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5881 mcs[ridx] |= rbit;
5882 else
5883 return false;
5884 }
5885
5886 return true;
5887}
5888
b54452b0 5889static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5890 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5891 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 5892 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5893 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 5894};
5895
5896static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5897 struct genl_info *info)
5898{
5899 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5900 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5901 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5902 int rem, i;
5903 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5904 struct nlattr *tx_rates;
5905 struct ieee80211_supported_band *sband;
5906
5907 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5908 return -EINVAL;
5909
4c476991
JB		 5910 if (!rdev->ops->set_bitrate_mask)
5911 return -EOPNOTSUPP;
13ae75b1
JM		 5912
5913 memset(&mask, 0, sizeof(mask));
5914 /* Default to all rates enabled */
5915 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5916 sband = rdev->wiphy.bands[i];
5917 mask.control[i].legacy =
5918 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 5919 if (sband)
5920 memcpy(mask.control[i].mcs,
5921 sband->ht_cap.mcs.rx_mask,
5922 sizeof(mask.control[i].mcs));
5923 else
5924 memset(mask.control[i].mcs, 0,
5925 sizeof(mask.control[i].mcs));
13ae75b1
JM		 5926 }
5927
5928 /*
5929 * The nested attribute uses enum nl80211_band as the index. This maps
5930 * directly to the enum ieee80211_band values used in cfg80211.
5931 */
24db78c0 5932 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 5933 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5934 {
5935 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5936 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5937 return -EINVAL;
13ae75b1 5938 sband = rdev->wiphy.bands[band];
4c476991
JB		 5939 if (sband == NULL)
5940 return -EINVAL;
13ae75b1
JM		 5941 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5942 nla_len(tx_rates), nl80211_txattr_policy);
5943 if (tb[NL80211_TXRATE_LEGACY]) {
5944 mask.control[band].legacy = rateset_to_mask(
5945 sband,
5946 nla_data(tb[NL80211_TXRATE_LEGACY]),
5947 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 5948 if ((mask.control[band].legacy == 0) &&
5949 nla_len(tb[NL80211_TXRATE_LEGACY]))
5950 return -EINVAL;
24db78c0
SW		 5951 }
5952 if (tb[NL80211_TXRATE_MCS]) {
5953 if (!ht_rateset_to_mask(
5954 sband,
5955 nla_data(tb[NL80211_TXRATE_MCS]),
5956 nla_len(tb[NL80211_TXRATE_MCS]),
5957 mask.control[band].mcs))
5958 return -EINVAL;
5959 }
5960
5961 if (mask.control[band].legacy == 0) {
5962 /* don't allow empty legacy rates if HT
5963 * is not even supported. */
5964 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5965 return -EINVAL;
5966
5967 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5968 if (mask.control[band].mcs[i])
5969 break;
5970
5971 /* legacy and mcs rates may not be both empty */
5972 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 5973 return -EINVAL;
13ae75b1
JM		 5974 }
5975 }
5976
4c476991 5977 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5978}
5979
2e161f78 5980static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5981{
4c476991
JB		 5982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5983 struct net_device *dev = info->user_ptr[1];
2e161f78 5984 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5985
5986 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5987 return -EINVAL;
5988
2e161f78
JB		 5989 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5990 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5991
9d38d85d 5992 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5993 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5994 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5995 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5996 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5997 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5998 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5999 return -EOPNOTSUPP;
026331c4
JM		 6000
6001 /* not much point in registering if we can't reply */
4c476991
JB		 6002 if (!rdev->ops->mgmt_tx)
6003 return -EOPNOTSUPP;
026331c4 6004
4c476991 6005 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 6006 frame_type,
026331c4
JM		 6007 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6008 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6009}
6010
2e161f78 6011static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6012{
4c476991
JB		 6013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6014 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 6015 struct ieee80211_channel *chan;
6016 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 6017 bool channel_type_valid = false;
026331c4
JM		 6018 u32 freq;
6019 int err;
d64d373f 6020 void *hdr = NULL;
026331c4 6021 u64 cookie;
e247bd90 6022 struct sk_buff *msg = NULL;
f7ca38df 6023 unsigned int wait = 0;
e247bd90
JB		 6024 bool offchan, no_cck, dont_wait_for_ack;
6025
6026 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 6027
6028 if (!info->attrs[NL80211_ATTR_FRAME] ||
6029 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6030 return -EINVAL;
6031
4c476991
JB		 6032 if (!rdev->ops->mgmt_tx)
6033 return -EOPNOTSUPP;
026331c4 6034
9d38d85d 6035 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 6036 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 6037 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6038 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6039 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 6040 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 6041 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6042 return -EOPNOTSUPP;
026331c4 6043
f7ca38df 6044 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6045 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6046 return -EINVAL;
6047 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6048
6049 /*
6050 * We should wait on the channel for at least a minimum amount
6051 * of time (10ms) but no longer than the driver supports.
6052 */
6053 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6054 wait > rdev->wiphy.max_remain_on_channel_duration)
6055 return -EINVAL;
6056
f7ca38df
JB		 6057 }
6058
026331c4 6059 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
cd6c6598 6060 if (!nl80211_valid_channel_type(info, &channel_type))
4c476991 6061 return -EINVAL;
252aa631 6062 channel_type_valid = true;
026331c4
JM		 6063 }
6064
f7ca38df
JB		 6065 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6066
7c4ef712
JB		 6067 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6068 return -EINVAL;
6069
e9f935e3
RM		 6070 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6071
026331c4
JM		 6072 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6073 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 6074 if (chan == NULL)
6075 return -EINVAL;
026331c4 6076
e247bd90
JB		 6077 if (!dont_wait_for_ack) {
6078 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6079 if (!msg)
6080 return -ENOMEM;
026331c4 6081
e247bd90
JB		 6082 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6083 NL80211_CMD_FRAME);
026331c4 6084
e247bd90
JB		 6085 if (IS_ERR(hdr)) {
6086 err = PTR_ERR(hdr);
6087 goto free_msg;
6088 }
026331c4 6089 }
e247bd90 6090
f7ca38df
JB		 6091 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6092 channel_type_valid, wait,
2e161f78
JB		 6093 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6094 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6095 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6096 if (err)
6097 goto free_msg;
6098
e247bd90 6099 if (msg) {
9360ffd1
DM		 6100 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6101 goto nla_put_failure;
026331c4 6102
e247bd90
JB		 6103 genlmsg_end(msg, hdr);
6104 return genlmsg_reply(msg, info);
6105 }
6106
6107 return 0;
026331c4
JM		 6108
6109 nla_put_failure:
6110 err = -ENOBUFS;
6111 free_msg:
6112 nlmsg_free(msg);
026331c4
JM		 6113 return err;
6114}
6115
f7ca38df
JB		 6116static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6117{
6118 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6119 struct net_device *dev = info->user_ptr[1];
6120 u64 cookie;
6121
6122 if (!info->attrs[NL80211_ATTR_COOKIE])
6123 return -EINVAL;
6124
6125 if (!rdev->ops->mgmt_tx_cancel_wait)
6126 return -EOPNOTSUPP;
6127
6128 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6129 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6130 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6131 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6132 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6133 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6134 return -EOPNOTSUPP;
6135
6136 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6137
6138 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6139}
6140
ffb9eb3d
KV		 6141static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6142{
4c476991 6143 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6144 struct wireless_dev *wdev;
4c476991 6145 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6146 u8 ps_state;
6147 bool state;
6148 int err;
6149
4c476991
JB		 6150 if (!info->attrs[NL80211_ATTR_PS_STATE])
6151 return -EINVAL;
ffb9eb3d
KV		 6152
6153 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6154
4c476991
JB		 6155 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6156 return -EINVAL;
ffb9eb3d
KV		 6157
6158 wdev = dev->ieee80211_ptr;
6159
4c476991
JB		 6160 if (!rdev->ops->set_power_mgmt)
6161 return -EOPNOTSUPP;
ffb9eb3d
KV		 6162
6163 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6164
6165 if (state == wdev->ps)
4c476991 6166 return 0;
ffb9eb3d 6167
4c476991
JB		 6168 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6169 wdev->ps_timeout);
6170 if (!err)
6171 wdev->ps = state;
ffb9eb3d
KV		 6172 return err;
6173}
6174
6175static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6176{
4c476991 6177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6178 enum nl80211_ps_state ps_state;
6179 struct wireless_dev *wdev;
4c476991 6180 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6181 struct sk_buff *msg;
6182 void *hdr;
6183 int err;
6184
ffb9eb3d
KV		 6185 wdev = dev->ieee80211_ptr;
6186
4c476991
JB		 6187 if (!rdev->ops->set_power_mgmt)
6188 return -EOPNOTSUPP;
ffb9eb3d
KV		 6189
6190 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6191 if (!msg)
6192 return -ENOMEM;
ffb9eb3d
KV		 6193
6194 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6195 NL80211_CMD_GET_POWER_SAVE);
6196 if (!hdr) {
4c476991 6197 err = -ENOBUFS;
ffb9eb3d
KV		 6198 goto free_msg;
6199 }
6200
6201 if (wdev->ps)
6202 ps_state = NL80211_PS_ENABLED;
6203 else
6204 ps_state = NL80211_PS_DISABLED;
6205
9360ffd1
DM		 6206 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6207 goto nla_put_failure;
ffb9eb3d
KV		 6208
6209 genlmsg_end(msg, hdr);
4c476991 6210 return genlmsg_reply(msg, info);
ffb9eb3d 6211
4c476991 6212 nla_put_failure:
ffb9eb3d 6213 err = -ENOBUFS;
4c476991 6214 free_msg:
ffb9eb3d 6215 nlmsg_free(msg);
ffb9eb3d
KV		 6216 return err;
6217}
6218
d6dc1a38
JO		 6219static struct nla_policy
6220nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6221 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6222 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6223 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6224};
6225
6226static int nl80211_set_cqm_rssi(struct genl_info *info,
6227 s32 threshold, u32 hysteresis)
6228{
4c476991 6229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6230 struct wireless_dev *wdev;
4c476991 6231 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6232
6233 if (threshold > 0)
6234 return -EINVAL;
6235
d6dc1a38
JO		 6236 wdev = dev->ieee80211_ptr;
6237
4c476991
JB		 6238 if (!rdev->ops->set_cqm_rssi_config)
6239 return -EOPNOTSUPP;
d6dc1a38 6240
074ac8df 6241 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6242 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6243 return -EOPNOTSUPP;
d6dc1a38 6244
4c476991
JB		 6245 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6246 threshold, hysteresis);
d6dc1a38
JO		 6247}
6248
6249static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6250{
6251 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6252 struct nlattr *cqm;
6253 int err;
6254
6255 cqm = info->attrs[NL80211_ATTR_CQM];
6256 if (!cqm) {
6257 err = -EINVAL;
6258 goto out;
6259 }
6260
6261 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6262 nl80211_attr_cqm_policy);
6263 if (err)
6264 goto out;
6265
6266 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6267 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6268 s32 threshold;
6269 u32 hysteresis;
6270 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6271 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6272 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6273 } else
6274 err = -EINVAL;
6275
6276out:
6277 return err;
6278}
6279
29cbe68c
JB		 6280static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6281{
6282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6283 struct net_device *dev = info->user_ptr[1];
6284 struct mesh_config cfg;
c80d545d 6285 struct mesh_setup setup;
29cbe68c
JB		 6286 int err;
6287
6288 /* start with default */
6289 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6290 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6291
24bdd9f4 6292 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6293 /* and parse parameters if given */
24bdd9f4 6294 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6295 if (err)
6296 return err;
6297 }
6298
6299 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6300 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6301 return -EINVAL;
6302
c80d545d
JC		 6303 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6304 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6305
4bb62344
CYY		 6306 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6307 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6308 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6309 return -EINVAL;
6310
c80d545d
JC		 6311 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6312 /* parse additional setup parameters if given */
6313 err = nl80211_parse_mesh_setup(info, &setup);
6314 if (err)
6315 return err;
6316 }
6317
cc1d2806
JB		 6318 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6319 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6320
6321 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6322 !nl80211_valid_channel_type(info, &channel_type))
6323 return -EINVAL;
6324
6325 setup.channel = rdev_freq_to_chan(rdev,
6326 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6327 channel_type);
6328 if (!setup.channel)
6329 return -EINVAL;
6330 setup.channel_type = channel_type;
6331 } else {
6332 /* cfg80211_join_mesh() will sort it out */
6333 setup.channel = NULL;
6334 }
6335
c80d545d 6336 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6337}
6338
6339static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6340{
6341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6342 struct net_device *dev = info->user_ptr[1];
6343
6344 return cfg80211_leave_mesh(rdev, dev);
6345}
6346
dfb89c56 6347#ifdef CONFIG_PM
ff1b6e69
JB		 6348static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6349{
6350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6351 struct sk_buff *msg;
6352 void *hdr;
6353
6354 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6355 return -EOPNOTSUPP;
6356
6357 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6358 if (!msg)
6359 return -ENOMEM;
6360
6361 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6362 NL80211_CMD_GET_WOWLAN);
6363 if (!hdr)
6364 goto nla_put_failure;
6365
6366 if (rdev->wowlan) {
6367 struct nlattr *nl_wowlan;
6368
6369 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6370 if (!nl_wowlan)
6371 goto nla_put_failure;
6372
9360ffd1
DM		 6373 if ((rdev->wowlan->any &&
6374 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6375 (rdev->wowlan->disconnect &&
6376 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6377 (rdev->wowlan->magic_pkt &&
6378 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6379 (rdev->wowlan->gtk_rekey_failure &&
6380 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6381 (rdev->wowlan->eap_identity_req &&
6382 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6383 (rdev->wowlan->four_way_handshake &&
6384 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6385 (rdev->wowlan->rfkill_release &&
6386 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6387 goto nla_put_failure;
ff1b6e69
JB		 6388 if (rdev->wowlan->n_patterns) {
6389 struct nlattr *nl_pats, *nl_pat;
6390 int i, pat_len;
6391
6392 nl_pats = nla_nest_start(msg,
6393 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6394 if (!nl_pats)
6395 goto nla_put_failure;
6396
6397 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6398 nl_pat = nla_nest_start(msg, i + 1);
6399 if (!nl_pat)
6400 goto nla_put_failure;
6401 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6402 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6403 DIV_ROUND_UP(pat_len, 8),
6404 rdev->wowlan->patterns[i].mask) ||
6405 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6406 pat_len,
6407 rdev->wowlan->patterns[i].pattern))
6408 goto nla_put_failure;
ff1b6e69
JB		 6409 nla_nest_end(msg, nl_pat);
6410 }
6411 nla_nest_end(msg, nl_pats);
6412 }
6413
6414 nla_nest_end(msg, nl_wowlan);
6415 }
6416
6417 genlmsg_end(msg, hdr);
6418 return genlmsg_reply(msg, info);
6419
6420nla_put_failure:
6421 nlmsg_free(msg);
6422 return -ENOBUFS;
6423}
6424
6425static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6426{
6427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6428 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6429 struct cfg80211_wowlan no_triggers = {};
6430 struct cfg80211_wowlan new_triggers = {};
6431 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6432 int err, i;
6d52563f 6433 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6434
6435 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6436 return -EOPNOTSUPP;
6437
6438 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6439 goto no_triggers;
6440
6441 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6442 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6443 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6444 nl80211_wowlan_policy);
6445 if (err)
6446 return err;
6447
6448 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6449 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6450 return -EINVAL;
6451 new_triggers.any = true;
6452 }
6453
6454 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6455 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6456 return -EINVAL;
6457 new_triggers.disconnect = true;
6458 }
6459
6460 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6461 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6462 return -EINVAL;
6463 new_triggers.magic_pkt = true;
6464 }
6465
77dbbb13
JB		 6466 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6467 return -EINVAL;
6468
6469 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6470 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6471 return -EINVAL;
6472 new_triggers.gtk_rekey_failure = true;
6473 }
6474
6475 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6476 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6477 return -EINVAL;
6478 new_triggers.eap_identity_req = true;
6479 }
6480
6481 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6482 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6483 return -EINVAL;
6484 new_triggers.four_way_handshake = true;
6485 }
6486
6487 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6488 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6489 return -EINVAL;
6490 new_triggers.rfkill_release = true;
6491 }
6492
ff1b6e69
JB		 6493 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6494 struct nlattr *pat;
6495 int n_patterns = 0;
6496 int rem, pat_len, mask_len;
6497 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6498
6499 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6500 rem)
6501 n_patterns++;
6502 if (n_patterns > wowlan->n_patterns)
6503 return -EINVAL;
6504
6505 new_triggers.patterns = kcalloc(n_patterns,
6506 sizeof(new_triggers.patterns[0]),
6507 GFP_KERNEL);
6508 if (!new_triggers.patterns)
6509 return -ENOMEM;
6510
6511 new_triggers.n_patterns = n_patterns;
6512 i = 0;
6513
6514 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6515 rem) {
6516 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6517 nla_data(pat), nla_len(pat), NULL);
6518 err = -EINVAL;
6519 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6520 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6521 goto error;
6522 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6523 mask_len = DIV_ROUND_UP(pat_len, 8);
6524 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6525 mask_len)
6526 goto error;
6527 if (pat_len > wowlan->pattern_max_len ||
6528 pat_len < wowlan->pattern_min_len)
6529 goto error;
6530
6531 new_triggers.patterns[i].mask =
6532 kmalloc(mask_len + pat_len, GFP_KERNEL);
6533 if (!new_triggers.patterns[i].mask) {
6534 err = -ENOMEM;
6535 goto error;
6536 }
6537 new_triggers.patterns[i].pattern =
6538 new_triggers.patterns[i].mask + mask_len;
6539 memcpy(new_triggers.patterns[i].mask,
6540 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6541 mask_len);
6542 new_triggers.patterns[i].pattern_len = pat_len;
6543 memcpy(new_triggers.patterns[i].pattern,
6544 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6545 pat_len);
6546 i++;
6547 }
6548 }
6549
6550 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6551 struct cfg80211_wowlan *ntrig;
6552 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6553 GFP_KERNEL);
6554 if (!ntrig) {
6555 err = -ENOMEM;
6556 goto error;
6557 }
6558 cfg80211_rdev_free_wowlan(rdev);
6559 rdev->wowlan = ntrig;
6560 } else {
6561 no_triggers:
6562 cfg80211_rdev_free_wowlan(rdev);
6563 rdev->wowlan = NULL;
6564 }
6565
6d52563f
JB		 6566 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6567 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6568
ff1b6e69
JB		 6569 return 0;
6570 error:
6571 for (i = 0; i < new_triggers.n_patterns; i++)
6572 kfree(new_triggers.patterns[i].mask);
6573 kfree(new_triggers.patterns);
6574 return err;
6575}
dfb89c56 6576#endif
ff1b6e69 6577
e5497d76
JB		 6578static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6579{
6580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6581 struct net_device *dev = info->user_ptr[1];
6582 struct wireless_dev *wdev = dev->ieee80211_ptr;
6583 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6584 struct cfg80211_gtk_rekey_data rekey_data;
6585 int err;
6586
6587 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6588 return -EINVAL;
6589
6590 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6591 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6592 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6593 nl80211_rekey_policy);
6594 if (err)
6595 return err;
6596
6597 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6598 return -ERANGE;
6599 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6600 return -ERANGE;
6601 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6602 return -ERANGE;
6603
6604 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6605 NL80211_KEK_LEN);
6606 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6607 NL80211_KCK_LEN);
6608 memcpy(rekey_data.replay_ctr,
6609 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6610 NL80211_REPLAY_CTR_LEN);
6611
6612 wdev_lock(wdev);
6613 if (!wdev->current_bss) {
6614 err = -ENOTCONN;
6615 goto out;
6616 }
6617
6618 if (!rdev->ops->set_rekey_data) {
6619 err = -EOPNOTSUPP;
6620 goto out;
6621 }
6622
6623 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6624 out:
6625 wdev_unlock(wdev);
6626 return err;
6627}
6628
28946da7
JB		 6629static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6630 struct genl_info *info)
6631{
6632 struct net_device *dev = info->user_ptr[1];
6633 struct wireless_dev *wdev = dev->ieee80211_ptr;
6634
6635 if (wdev->iftype != NL80211_IFTYPE_AP &&
6636 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6637 return -EINVAL;
6638
6639 if (wdev->ap_unexpected_nlpid)
6640 return -EBUSY;
6641
6642 wdev->ap_unexpected_nlpid = info->snd_pid;
6643 return 0;
6644}
6645
7f6cf311
JB		 6646static int nl80211_probe_client(struct sk_buff *skb,
6647 struct genl_info *info)
6648{
6649 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6650 struct net_device *dev = info->user_ptr[1];
6651 struct wireless_dev *wdev = dev->ieee80211_ptr;
6652 struct sk_buff *msg;
6653 void *hdr;
6654 const u8 *addr;
6655 u64 cookie;
6656 int err;
6657
6658 if (wdev->iftype != NL80211_IFTYPE_AP &&
6659 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6660 return -EOPNOTSUPP;
6661
6662 if (!info->attrs[NL80211_ATTR_MAC])
6663 return -EINVAL;
6664
6665 if (!rdev->ops->probe_client)
6666 return -EOPNOTSUPP;
6667
6668 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6669 if (!msg)
6670 return -ENOMEM;
6671
6672 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6673 NL80211_CMD_PROBE_CLIENT);
6674
6675 if (IS_ERR(hdr)) {
6676 err = PTR_ERR(hdr);
6677 goto free_msg;
6678 }
6679
6680 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6681
6682 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6683 if (err)
6684 goto free_msg;
6685
9360ffd1
DM		 6686 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6687 goto nla_put_failure;
7f6cf311
JB		 6688
6689 genlmsg_end(msg, hdr);
6690
6691 return genlmsg_reply(msg, info);
6692
6693 nla_put_failure:
6694 err = -ENOBUFS;
6695 free_msg:
6696 nlmsg_free(msg);
6697 return err;
6698}
6699
5e760230
JB		 6700static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6701{
6702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6703
6704 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6705 return -EOPNOTSUPP;
6706
6707 if (rdev->ap_beacons_nlpid)
6708 return -EBUSY;
6709
6710 rdev->ap_beacons_nlpid = info->snd_pid;
6711
6712 return 0;
6713}
6714
4c476991
JB		 6715#define NL80211_FLAG_NEED_WIPHY 0x01
6716#define NL80211_FLAG_NEED_NETDEV 0x02
6717#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6718#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6719#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6720 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6721
6722static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6723 struct genl_info *info)
6724{
6725 struct cfg80211_registered_device *rdev;
89a54e48 6726 struct wireless_dev *wdev;
4c476991 6727 struct net_device *dev;
4c476991
JB		 6728 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6729
6730 if (rtnl)
6731 rtnl_lock();
6732
6733 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 6734 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 6735 if (IS_ERR(rdev)) {
6736 if (rtnl)
6737 rtnl_unlock();
6738 return PTR_ERR(rdev);
6739 }
6740 info->user_ptr[0] = rdev;
6741 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
89a54e48
JB		 6742 mutex_lock(&cfg80211_mutex);
6743 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
6744 info->attrs);
6745 if (IS_ERR(wdev)) {
6746 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 6747 if (rtnl)
6748 rtnl_unlock();
89a54e48 6749 return PTR_ERR(wdev);
4c476991 6750 }
89a54e48
JB		 6751
6752 if (!wdev->netdev) {
6753 mutex_unlock(&cfg80211_mutex);
6754 if (rtnl)
6755 rtnl_unlock();
6756 return -EINVAL;
6757 }
6758
6759 dev = wdev->netdev;
6760 rdev = wiphy_to_dev(wdev->wiphy);
6761
41265714
JB		 6762 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6763 !netif_running(dev)) {
89a54e48 6764 mutex_unlock(&cfg80211_mutex);
41265714
JB		 6765 if (rtnl)
6766 rtnl_unlock();
6767 return -ENETDOWN;
6768 }
89a54e48
JB		 6769
6770 dev_hold(dev);
6771 cfg80211_lock_rdev(rdev);
6772
6773 mutex_unlock(&cfg80211_mutex);
6774
4c476991
JB		 6775 info->user_ptr[0] = rdev;
6776 info->user_ptr[1] = dev;
6777 }
6778
6779 return 0;
6780}
6781
6782static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6783 struct genl_info *info)
6784{
6785 if (info->user_ptr[0])
6786 cfg80211_unlock_rdev(info->user_ptr[0]);
6787 if (info->user_ptr[1])
6788 dev_put(info->user_ptr[1]);
6789 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6790 rtnl_unlock();
6791}
6792
55682965
JB		 6793static struct genl_ops nl80211_ops[] = {
6794 {
6795 .cmd = NL80211_CMD_GET_WIPHY,
6796 .doit = nl80211_get_wiphy,
6797 .dumpit = nl80211_dump_wiphy,
6798 .policy = nl80211_policy,
6799 /* can be retrieved by unprivileged users */
4c476991 6800 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6801 },
6802 {
6803 .cmd = NL80211_CMD_SET_WIPHY,
6804 .doit = nl80211_set_wiphy,
6805 .policy = nl80211_policy,
6806 .flags = GENL_ADMIN_PERM,
4c476991 6807 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6808 },
6809 {
6810 .cmd = NL80211_CMD_GET_INTERFACE,
6811 .doit = nl80211_get_interface,
6812 .dumpit = nl80211_dump_interface,
6813 .policy = nl80211_policy,
6814 /* can be retrieved by unprivileged users */
4c476991 6815 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6816 },
6817 {
6818 .cmd = NL80211_CMD_SET_INTERFACE,
6819 .doit = nl80211_set_interface,
6820 .policy = nl80211_policy,
6821 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6822 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6823 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6824 },
6825 {
6826 .cmd = NL80211_CMD_NEW_INTERFACE,
6827 .doit = nl80211_new_interface,
6828 .policy = nl80211_policy,
6829 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6830 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6831 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6832 },
6833 {
6834 .cmd = NL80211_CMD_DEL_INTERFACE,
6835 .doit = nl80211_del_interface,
6836 .policy = nl80211_policy,
41ade00f 6837 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6838 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6839 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6840 },
6841 {
6842 .cmd = NL80211_CMD_GET_KEY,
6843 .doit = nl80211_get_key,
6844 .policy = nl80211_policy,
6845 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6847 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6848 },
6849 {
6850 .cmd = NL80211_CMD_SET_KEY,
6851 .doit = nl80211_set_key,
6852 .policy = nl80211_policy,
6853 .flags = GENL_ADMIN_PERM,
41265714 6854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6855 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6856 },
6857 {
6858 .cmd = NL80211_CMD_NEW_KEY,
6859 .doit = nl80211_new_key,
6860 .policy = nl80211_policy,
6861 .flags = GENL_ADMIN_PERM,
41265714 6862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6863 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6864 },
6865 {
6866 .cmd = NL80211_CMD_DEL_KEY,
6867 .doit = nl80211_del_key,
6868 .policy = nl80211_policy,
55682965 6869 .flags = GENL_ADMIN_PERM,
41265714 6870 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6871 NL80211_FLAG_NEED_RTNL,
55682965 6872 },
ed1b6cc7
JB		 6873 {
6874 .cmd = NL80211_CMD_SET_BEACON,
6875 .policy = nl80211_policy,
6876 .flags = GENL_ADMIN_PERM,
8860020e 6877 .doit = nl80211_set_beacon,
2b5f8b0b 6878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6879 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6880 },
6881 {
8860020e 6882 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 6883 .policy = nl80211_policy,
6884 .flags = GENL_ADMIN_PERM,
8860020e 6885 .doit = nl80211_start_ap,
2b5f8b0b 6886 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6887 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6888 },
6889 {
8860020e 6890 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 6891 .policy = nl80211_policy,
6892 .flags = GENL_ADMIN_PERM,
8860020e 6893 .doit = nl80211_stop_ap,
2b5f8b0b 6894 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6895 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6896 },
5727ef1b
JB		 6897 {
6898 .cmd = NL80211_CMD_GET_STATION,
6899 .doit = nl80211_get_station,
2ec600d6 6900 .dumpit = nl80211_dump_station,
5727ef1b 6901 .policy = nl80211_policy,
4c476991
JB		 6902 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6903 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6904 },
6905 {
6906 .cmd = NL80211_CMD_SET_STATION,
6907 .doit = nl80211_set_station,
6908 .policy = nl80211_policy,
6909 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6910 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6911 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6912 },
6913 {
6914 .cmd = NL80211_CMD_NEW_STATION,
6915 .doit = nl80211_new_station,
6916 .policy = nl80211_policy,
6917 .flags = GENL_ADMIN_PERM,
41265714 6918 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6919 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6920 },
6921 {
6922 .cmd = NL80211_CMD_DEL_STATION,
6923 .doit = nl80211_del_station,
6924 .policy = nl80211_policy,
2ec600d6 6925 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6926 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6927 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6928 },
6929 {
6930 .cmd = NL80211_CMD_GET_MPATH,
6931 .doit = nl80211_get_mpath,
6932 .dumpit = nl80211_dump_mpath,
6933 .policy = nl80211_policy,
6934 .flags = GENL_ADMIN_PERM,
41265714 6935 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6936 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6937 },
6938 {
6939 .cmd = NL80211_CMD_SET_MPATH,
6940 .doit = nl80211_set_mpath,
6941 .policy = nl80211_policy,
6942 .flags = GENL_ADMIN_PERM,
41265714 6943 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6944 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6945 },
6946 {
6947 .cmd = NL80211_CMD_NEW_MPATH,
6948 .doit = nl80211_new_mpath,
6949 .policy = nl80211_policy,
6950 .flags = GENL_ADMIN_PERM,
41265714 6951 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6952 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6953 },
6954 {
6955 .cmd = NL80211_CMD_DEL_MPATH,
6956 .doit = nl80211_del_mpath,
6957 .policy = nl80211_policy,
9f1ba906 6958 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6959 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6960 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6961 },
6962 {
6963 .cmd = NL80211_CMD_SET_BSS,
6964 .doit = nl80211_set_bss,
6965 .policy = nl80211_policy,
b2e1b302 6966 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6967 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6968 NL80211_FLAG_NEED_RTNL,
b2e1b302 6969 },
f130347c
LR		 6970 {
6971 .cmd = NL80211_CMD_GET_REG,
6972 .doit = nl80211_get_reg,
6973 .policy = nl80211_policy,
6974 /* can be retrieved by unprivileged users */
6975 },
b2e1b302
LR		 6976 {
6977 .cmd = NL80211_CMD_SET_REG,
6978 .doit = nl80211_set_reg,
6979 .policy = nl80211_policy,
6980 .flags = GENL_ADMIN_PERM,
6981 },
6982 {
6983 .cmd = NL80211_CMD_REQ_SET_REG,
6984 .doit = nl80211_req_set_reg,
6985 .policy = nl80211_policy,
93da9cc1 6986 .flags = GENL_ADMIN_PERM,
6987 },
6988 {
24bdd9f4
JC		 6989 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6990 .doit = nl80211_get_mesh_config,
93da9cc1 6991 .policy = nl80211_policy,
6992 /* can be retrieved by unprivileged users */
2b5f8b0b 6993 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6994 NL80211_FLAG_NEED_RTNL,
93da9cc1 6995 },
6996 {
24bdd9f4
JC		 6997 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6998 .doit = nl80211_update_mesh_config,
93da9cc1 6999 .policy = nl80211_policy,
9aed3cc1 7000 .flags = GENL_ADMIN_PERM,
29cbe68c 7001 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7002 NL80211_FLAG_NEED_RTNL,
9aed3cc1 7003 },
2a519311
JB		 7004 {
7005 .cmd = NL80211_CMD_TRIGGER_SCAN,
7006 .doit = nl80211_trigger_scan,
7007 .policy = nl80211_policy,
7008 .flags = GENL_ADMIN_PERM,
41265714 7009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7010 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 7011 },
7012 {
7013 .cmd = NL80211_CMD_GET_SCAN,
7014 .policy = nl80211_policy,
7015 .dumpit = nl80211_dump_scan,
7016 },
807f8a8c
LC		 7017 {
7018 .cmd = NL80211_CMD_START_SCHED_SCAN,
7019 .doit = nl80211_start_sched_scan,
7020 .policy = nl80211_policy,
7021 .flags = GENL_ADMIN_PERM,
7022 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7023 NL80211_FLAG_NEED_RTNL,
7024 },
7025 {
7026 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7027 .doit = nl80211_stop_sched_scan,
7028 .policy = nl80211_policy,
7029 .flags = GENL_ADMIN_PERM,
7030 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7031 NL80211_FLAG_NEED_RTNL,
7032 },
636a5d36
JM		 7033 {
7034 .cmd = NL80211_CMD_AUTHENTICATE,
7035 .doit = nl80211_authenticate,
7036 .policy = nl80211_policy,
7037 .flags = GENL_ADMIN_PERM,
41265714 7038 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7039 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7040 },
7041 {
7042 .cmd = NL80211_CMD_ASSOCIATE,
7043 .doit = nl80211_associate,
7044 .policy = nl80211_policy,
7045 .flags = GENL_ADMIN_PERM,
41265714 7046 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7047 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7048 },
7049 {
7050 .cmd = NL80211_CMD_DEAUTHENTICATE,
7051 .doit = nl80211_deauthenticate,
7052 .policy = nl80211_policy,
7053 .flags = GENL_ADMIN_PERM,
41265714 7054 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7055 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7056 },
7057 {
7058 .cmd = NL80211_CMD_DISASSOCIATE,
7059 .doit = nl80211_disassociate,
7060 .policy = nl80211_policy,
7061 .flags = GENL_ADMIN_PERM,
41265714 7062 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7063 NL80211_FLAG_NEED_RTNL,
636a5d36 7064 },
04a773ad
JB		 7065 {
7066 .cmd = NL80211_CMD_JOIN_IBSS,
7067 .doit = nl80211_join_ibss,
7068 .policy = nl80211_policy,
7069 .flags = GENL_ADMIN_PERM,
41265714 7070 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7071 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 7072 },
7073 {
7074 .cmd = NL80211_CMD_LEAVE_IBSS,
7075 .doit = nl80211_leave_ibss,
7076 .policy = nl80211_policy,
7077 .flags = GENL_ADMIN_PERM,
41265714 7078 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7079 NL80211_FLAG_NEED_RTNL,
04a773ad 7080 },
aff89a9b
JB		 7081#ifdef CONFIG_NL80211_TESTMODE
7082 {
7083 .cmd = NL80211_CMD_TESTMODE,
7084 .doit = nl80211_testmode_do,
71063f0e 7085 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7086 .policy = nl80211_policy,
7087 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7088 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7089 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7090 },
7091#endif
b23aa676
SO		 7092 {
7093 .cmd = NL80211_CMD_CONNECT,
7094 .doit = nl80211_connect,
7095 .policy = nl80211_policy,
7096 .flags = GENL_ADMIN_PERM,
41265714 7097 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7098 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7099 },
7100 {
7101 .cmd = NL80211_CMD_DISCONNECT,
7102 .doit = nl80211_disconnect,
7103 .policy = nl80211_policy,
7104 .flags = GENL_ADMIN_PERM,
41265714 7105 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7106 NL80211_FLAG_NEED_RTNL,
b23aa676 7107 },
463d0183
JB		 7108 {
7109 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7110 .doit = nl80211_wiphy_netns,
7111 .policy = nl80211_policy,
7112 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7113 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7114 NL80211_FLAG_NEED_RTNL,
463d0183 7115 },
61fa713c
HS		 7116 {
7117 .cmd = NL80211_CMD_GET_SURVEY,
7118 .policy = nl80211_policy,
7119 .dumpit = nl80211_dump_survey,
7120 },
67fbb16b
SO		 7121 {
7122 .cmd = NL80211_CMD_SET_PMKSA,
7123 .doit = nl80211_setdel_pmksa,
7124 .policy = nl80211_policy,
7125 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7126 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7127 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7128 },
7129 {
7130 .cmd = NL80211_CMD_DEL_PMKSA,
7131 .doit = nl80211_setdel_pmksa,
7132 .policy = nl80211_policy,
7133 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7134 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7135 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7136 },
7137 {
7138 .cmd = NL80211_CMD_FLUSH_PMKSA,
7139 .doit = nl80211_flush_pmksa,
7140 .policy = nl80211_policy,
7141 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7142 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7143 NL80211_FLAG_NEED_RTNL,
67fbb16b 7144 },
9588bbd5
JM		 7145 {
7146 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7147 .doit = nl80211_remain_on_channel,
7148 .policy = nl80211_policy,
7149 .flags = GENL_ADMIN_PERM,
41265714 7150 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7151 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7152 },
7153 {
7154 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7155 .doit = nl80211_cancel_remain_on_channel,
7156 .policy = nl80211_policy,
7157 .flags = GENL_ADMIN_PERM,
41265714 7158 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7159 NL80211_FLAG_NEED_RTNL,
9588bbd5 7160 },
13ae75b1
JM		 7161 {
7162 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7163 .doit = nl80211_set_tx_bitrate_mask,
7164 .policy = nl80211_policy,
7165 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7166 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7167 NL80211_FLAG_NEED_RTNL,
13ae75b1 7168 },
026331c4 7169 {
2e161f78
JB		 7170 .cmd = NL80211_CMD_REGISTER_FRAME,
7171 .doit = nl80211_register_mgmt,
026331c4
JM		 7172 .policy = nl80211_policy,
7173 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7174 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7175 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7176 },
7177 {
2e161f78
JB		 7178 .cmd = NL80211_CMD_FRAME,
7179 .doit = nl80211_tx_mgmt,
026331c4 7180 .policy = nl80211_policy,
f7ca38df
JB		 7181 .flags = GENL_ADMIN_PERM,
7182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7183 NL80211_FLAG_NEED_RTNL,
7184 },
7185 {
7186 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7187 .doit = nl80211_tx_mgmt_cancel_wait,
7188 .policy = nl80211_policy,
026331c4 7189 .flags = GENL_ADMIN_PERM,
41265714 7190 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7191 NL80211_FLAG_NEED_RTNL,
026331c4 7192 },
ffb9eb3d
KV		 7193 {
7194 .cmd = NL80211_CMD_SET_POWER_SAVE,
7195 .doit = nl80211_set_power_save,
7196 .policy = nl80211_policy,
7197 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7198 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7199 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7200 },
7201 {
7202 .cmd = NL80211_CMD_GET_POWER_SAVE,
7203 .doit = nl80211_get_power_save,
7204 .policy = nl80211_policy,
7205 /* can be retrieved by unprivileged users */
4c476991
JB		 7206 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7207 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7208 },
d6dc1a38
JO		 7209 {
7210 .cmd = NL80211_CMD_SET_CQM,
7211 .doit = nl80211_set_cqm,
7212 .policy = nl80211_policy,
7213 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7214 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7215 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7216 },
f444de05
JB		 7217 {
7218 .cmd = NL80211_CMD_SET_CHANNEL,
7219 .doit = nl80211_set_channel,
7220 .policy = nl80211_policy,
7221 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7222 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7223 NL80211_FLAG_NEED_RTNL,
f444de05 7224 },
e8347eba
BJ		 7225 {
7226 .cmd = NL80211_CMD_SET_WDS_PEER,
7227 .doit = nl80211_set_wds_peer,
7228 .policy = nl80211_policy,
7229 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7230 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7231 NL80211_FLAG_NEED_RTNL,
e8347eba 7232 },
29cbe68c
JB		 7233 {
7234 .cmd = NL80211_CMD_JOIN_MESH,
7235 .doit = nl80211_join_mesh,
7236 .policy = nl80211_policy,
7237 .flags = GENL_ADMIN_PERM,
7238 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7239 NL80211_FLAG_NEED_RTNL,
7240 },
7241 {
7242 .cmd = NL80211_CMD_LEAVE_MESH,
7243 .doit = nl80211_leave_mesh,
7244 .policy = nl80211_policy,
7245 .flags = GENL_ADMIN_PERM,
7246 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7247 NL80211_FLAG_NEED_RTNL,
7248 },
dfb89c56 7249#ifdef CONFIG_PM
ff1b6e69
JB		 7250 {
7251 .cmd = NL80211_CMD_GET_WOWLAN,
7252 .doit = nl80211_get_wowlan,
7253 .policy = nl80211_policy,
7254 /* can be retrieved by unprivileged users */
7255 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7256 NL80211_FLAG_NEED_RTNL,
7257 },
7258 {
7259 .cmd = NL80211_CMD_SET_WOWLAN,
7260 .doit = nl80211_set_wowlan,
7261 .policy = nl80211_policy,
7262 .flags = GENL_ADMIN_PERM,
7263 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7264 NL80211_FLAG_NEED_RTNL,
7265 },
dfb89c56 7266#endif
e5497d76
JB		 7267 {
7268 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7269 .doit = nl80211_set_rekey_data,
7270 .policy = nl80211_policy,
7271 .flags = GENL_ADMIN_PERM,
7272 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7273 NL80211_FLAG_NEED_RTNL,
7274 },
109086ce
AN		 7275 {
7276 .cmd = NL80211_CMD_TDLS_MGMT,
7277 .doit = nl80211_tdls_mgmt,
7278 .policy = nl80211_policy,
7279 .flags = GENL_ADMIN_PERM,
7280 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7281 NL80211_FLAG_NEED_RTNL,
7282 },
7283 {
7284 .cmd = NL80211_CMD_TDLS_OPER,
7285 .doit = nl80211_tdls_oper,
7286 .policy = nl80211_policy,
7287 .flags = GENL_ADMIN_PERM,
7288 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7289 NL80211_FLAG_NEED_RTNL,
7290 },
28946da7
JB		 7291 {
7292 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7293 .doit = nl80211_register_unexpected_frame,
7294 .policy = nl80211_policy,
7295 .flags = GENL_ADMIN_PERM,
7296 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7297 NL80211_FLAG_NEED_RTNL,
7298 },
7f6cf311
JB		 7299 {
7300 .cmd = NL80211_CMD_PROBE_CLIENT,
7301 .doit = nl80211_probe_client,
7302 .policy = nl80211_policy,
7303 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7304 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7305 NL80211_FLAG_NEED_RTNL,
7306 },
5e760230
JB		 7307 {
7308 .cmd = NL80211_CMD_REGISTER_BEACONS,
7309 .doit = nl80211_register_beacons,
7310 .policy = nl80211_policy,
7311 .flags = GENL_ADMIN_PERM,
7312 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7313 NL80211_FLAG_NEED_RTNL,
7314 },
1d9d9213
SW		 7315 {
7316 .cmd = NL80211_CMD_SET_NOACK_MAP,
7317 .doit = nl80211_set_noack_map,
7318 .policy = nl80211_policy,
7319 .flags = GENL_ADMIN_PERM,
7320 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7321 NL80211_FLAG_NEED_RTNL,
7322 },
7323
55682965 7324};
9588bbd5 7325
6039f6d2
JM		 7326static struct genl_multicast_group nl80211_mlme_mcgrp = {
7327 .name = "mlme",
7328};
55682965
JB		 7329
7330/* multicast groups */
7331static struct genl_multicast_group nl80211_config_mcgrp = {
7332 .name = "config",
7333};
2a519311
JB		 7334static struct genl_multicast_group nl80211_scan_mcgrp = {
7335 .name = "scan",
7336};
73d54c9e
LR		 7337static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7338 .name = "regulatory",
7339};
55682965
JB		 7340
7341/* notification functions */
7342
7343void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7344{
7345 struct sk_buff *msg;
7346
fd2120ca 7347 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7348 if (!msg)
7349 return;
7350
7351 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7352 nlmsg_free(msg);
7353 return;
7354 }
7355
463d0183
JB		 7356 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7357 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7358}
7359
362a415d
JB		 7360static int nl80211_add_scan_req(struct sk_buff *msg,
7361 struct cfg80211_registered_device *rdev)
7362{
7363 struct cfg80211_scan_request *req = rdev->scan_req;
7364 struct nlattr *nest;
7365 int i;
7366
667503dd
JB		 7367 ASSERT_RDEV_LOCK(rdev);
7368
362a415d
JB		 7369 if (WARN_ON(!req))
7370 return 0;
7371
7372 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7373 if (!nest)
7374 goto nla_put_failure;
9360ffd1
DM		 7375 for (i = 0; i < req->n_ssids; i++) {
7376 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7377 goto nla_put_failure;
7378 }
362a415d
JB		 7379 nla_nest_end(msg, nest);
7380
7381 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7382 if (!nest)
7383 goto nla_put_failure;
9360ffd1
DM		 7384 for (i = 0; i < req->n_channels; i++) {
7385 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7386 goto nla_put_failure;
7387 }
362a415d
JB		 7388 nla_nest_end(msg, nest);
7389
9360ffd1
DM		 7390 if (req->ie &&
7391 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7392 goto nla_put_failure;
362a415d
JB		 7393
7394 return 0;
7395 nla_put_failure:
7396 return -ENOBUFS;
7397}
7398
a538e2d5
JB		 7399static int nl80211_send_scan_msg(struct sk_buff *msg,
7400 struct cfg80211_registered_device *rdev,
7401 struct net_device *netdev,
7402 u32 pid, u32 seq, int flags,
7403 u32 cmd)
2a519311
JB		 7404{
7405 void *hdr;
7406
7407 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7408 if (!hdr)
7409 return -1;
7410
9360ffd1
DM		 7411 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7412 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7413 goto nla_put_failure;
2a519311 7414
362a415d
JB		 7415 /* ignore errors and send incomplete event anyway */
7416 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7417
7418 return genlmsg_end(msg, hdr);
7419
7420 nla_put_failure:
7421 genlmsg_cancel(msg, hdr);
7422 return -EMSGSIZE;
7423}
7424
807f8a8c
LC		 7425static int
7426nl80211_send_sched_scan_msg(struct sk_buff *msg,
7427 struct cfg80211_registered_device *rdev,
7428 struct net_device *netdev,
7429 u32 pid, u32 seq, int flags, u32 cmd)
7430{
7431 void *hdr;
7432
7433 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7434 if (!hdr)
7435 return -1;
7436
9360ffd1
DM		 7437 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7438 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7439 goto nla_put_failure;
807f8a8c
LC		 7440
7441 return genlmsg_end(msg, hdr);
7442
7443 nla_put_failure:
7444 genlmsg_cancel(msg, hdr);
7445 return -EMSGSIZE;
7446}
7447
a538e2d5
JB		 7448void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7449 struct net_device *netdev)
7450{
7451 struct sk_buff *msg;
7452
7453 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7454 if (!msg)
7455 return;
7456
7457 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7458 NL80211_CMD_TRIGGER_SCAN) < 0) {
7459 nlmsg_free(msg);
7460 return;
7461 }
7462
463d0183
JB		 7463 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7464 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7465}
7466
2a519311
JB		 7467void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7468 struct net_device *netdev)
7469{
7470 struct sk_buff *msg;
7471
fd2120ca 7472 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7473 if (!msg)
7474 return;
7475
a538e2d5
JB		 7476 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7477 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7478 nlmsg_free(msg);
7479 return;
7480 }
7481
463d0183
JB		 7482 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7483 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7484}
7485
7486void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7487 struct net_device *netdev)
7488{
7489 struct sk_buff *msg;
7490
fd2120ca 7491 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7492 if (!msg)
7493 return;
7494
a538e2d5
JB		 7495 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7496 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7497 nlmsg_free(msg);
7498 return;
7499 }
7500
463d0183
JB		 7501 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7502 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7503}
7504
807f8a8c
LC		 7505void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7506 struct net_device *netdev)
7507{
7508 struct sk_buff *msg;
7509
7510 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7511 if (!msg)
7512 return;
7513
7514 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7515 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7516 nlmsg_free(msg);
7517 return;
7518 }
7519
7520 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7521 nl80211_scan_mcgrp.id, GFP_KERNEL);
7522}
7523
7524void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7525 struct net_device *netdev, u32 cmd)
7526{
7527 struct sk_buff *msg;
7528
7529 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7530 if (!msg)
7531 return;
7532
7533 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7534 nlmsg_free(msg);
7535 return;
7536 }
7537
7538 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7539 nl80211_scan_mcgrp.id, GFP_KERNEL);
7540}
7541
73d54c9e
LR		 7542/*
7543 * This can happen on global regulatory changes or device specific settings
7544 * based on custom world regulatory domains.
7545 */
7546void nl80211_send_reg_change_event(struct regulatory_request *request)
7547{
7548 struct sk_buff *msg;
7549 void *hdr;
7550
fd2120ca 7551 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7552 if (!msg)
7553 return;
7554
7555 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7556 if (!hdr) {
7557 nlmsg_free(msg);
7558 return;
7559 }
7560
7561 /* Userspace can always count this one always being set */
9360ffd1
DM		 7562 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7563 goto nla_put_failure;
7564
7565 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7566 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7567 NL80211_REGDOM_TYPE_WORLD))
7568 goto nla_put_failure;
7569 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7570 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7571 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7572 goto nla_put_failure;
7573 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7574 request->intersect) {
7575 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7576 NL80211_REGDOM_TYPE_INTERSECTION))
7577 goto nla_put_failure;
7578 } else {
7579 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7580 NL80211_REGDOM_TYPE_COUNTRY) ||
7581 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7582 request->alpha2))
7583 goto nla_put_failure;
7584 }
7585
7586 if (wiphy_idx_valid(request->wiphy_idx) &&
7587 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7588 goto nla_put_failure;
73d54c9e 7589
3b7b72ee 7590 genlmsg_end(msg, hdr);
73d54c9e 7591
bc43b28c 7592 rcu_read_lock();
463d0183 7593 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7594 GFP_ATOMIC);
7595 rcu_read_unlock();
73d54c9e
LR		 7596
7597 return;
7598
7599nla_put_failure:
7600 genlmsg_cancel(msg, hdr);
7601 nlmsg_free(msg);
7602}
7603
6039f6d2
JM		 7604static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7605 struct net_device *netdev,
7606 const u8 *buf, size_t len,
e6d6e342 7607 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7608{
7609 struct sk_buff *msg;
7610 void *hdr;
7611
e6d6e342 7612 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7613 if (!msg)
7614 return;
7615
7616 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7617 if (!hdr) {
7618 nlmsg_free(msg);
7619 return;
7620 }
7621
9360ffd1
DM		 7622 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7623 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7624 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7625 goto nla_put_failure;
6039f6d2 7626
3b7b72ee 7627 genlmsg_end(msg, hdr);
6039f6d2 7628
463d0183
JB		 7629 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7630 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7631 return;
7632
7633 nla_put_failure:
7634 genlmsg_cancel(msg, hdr);
7635 nlmsg_free(msg);
7636}
7637
7638void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7639 struct net_device *netdev, const u8 *buf,
7640 size_t len, gfp_t gfp)
6039f6d2
JM		 7641{
7642 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7643 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7644}
7645
7646void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7647 struct net_device *netdev, const u8 *buf,
e6d6e342 7648 size_t len, gfp_t gfp)
6039f6d2 7649{
e6d6e342
JB		 7650 nl80211_send_mlme_event(rdev, netdev, buf, len,
7651 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7652}
7653
53b46b84 7654void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7655 struct net_device *netdev, const u8 *buf,
7656 size_t len, gfp_t gfp)
6039f6d2
JM		 7657{
7658 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7659 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7660}
7661
53b46b84
JM		 7662void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7663 struct net_device *netdev, const u8 *buf,
e6d6e342 7664 size_t len, gfp_t gfp)
6039f6d2
JM		 7665{
7666 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7667 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7668}
7669
cf4e594e
JM		 7670void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7671 struct net_device *netdev, const u8 *buf,
7672 size_t len, gfp_t gfp)
7673{
7674 nl80211_send_mlme_event(rdev, netdev, buf, len,
7675 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7676}
7677
7678void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7679 struct net_device *netdev, const u8 *buf,
7680 size_t len, gfp_t gfp)
7681{
7682 nl80211_send_mlme_event(rdev, netdev, buf, len,
7683 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7684}
7685
1b06bb40
LR		 7686static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7687 struct net_device *netdev, int cmd,
e6d6e342 7688 const u8 *addr, gfp_t gfp)
1965c853
JM		 7689{
7690 struct sk_buff *msg;
7691 void *hdr;
7692
e6d6e342 7693 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7694 if (!msg)
7695 return;
7696
7697 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7698 if (!hdr) {
7699 nlmsg_free(msg);
7700 return;
7701 }
7702
9360ffd1
DM		 7703 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7704 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7705 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7706 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7707 goto nla_put_failure;
1965c853 7708
3b7b72ee 7709 genlmsg_end(msg, hdr);
1965c853 7710
463d0183
JB		 7711 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7712 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7713 return;
7714
7715 nla_put_failure:
7716 genlmsg_cancel(msg, hdr);
7717 nlmsg_free(msg);
7718}
7719
7720void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7721 struct net_device *netdev, const u8 *addr,
7722 gfp_t gfp)
1965c853
JM		 7723{
7724 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7725 addr, gfp);
1965c853
JM		 7726}
7727
7728void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7729 struct net_device *netdev, const u8 *addr,
7730 gfp_t gfp)
1965c853 7731{
e6d6e342
JB		 7732 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7733 addr, gfp);
1965c853
JM		 7734}
7735
b23aa676
SO		 7736void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7737 struct net_device *netdev, const u8 *bssid,
7738 const u8 *req_ie, size_t req_ie_len,
7739 const u8 *resp_ie, size_t resp_ie_len,
7740 u16 status, gfp_t gfp)
7741{
7742 struct sk_buff *msg;
7743 void *hdr;
7744
7745 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7746 if (!msg)
7747 return;
7748
7749 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7750 if (!hdr) {
7751 nlmsg_free(msg);
7752 return;
7753 }
7754
9360ffd1
DM		 7755 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7756 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7757 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7758 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7759 (req_ie &&
7760 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7761 (resp_ie &&
7762 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7763 goto nla_put_failure;
b23aa676 7764
3b7b72ee 7765 genlmsg_end(msg, hdr);
b23aa676 7766
463d0183
JB		 7767 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7768 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7769 return;
7770
7771 nla_put_failure:
7772 genlmsg_cancel(msg, hdr);
7773 nlmsg_free(msg);
7774
7775}
7776
7777void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7778 struct net_device *netdev, const u8 *bssid,
7779 const u8 *req_ie, size_t req_ie_len,
7780 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7781{
7782 struct sk_buff *msg;
7783 void *hdr;
7784
7785 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7786 if (!msg)
7787 return;
7788
7789 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7790 if (!hdr) {
7791 nlmsg_free(msg);
7792 return;
7793 }
7794
9360ffd1
DM		 7795 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7796 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7797 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7798 (req_ie &&
7799 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7800 (resp_ie &&
7801 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7802 goto nla_put_failure;
b23aa676 7803
3b7b72ee 7804 genlmsg_end(msg, hdr);
b23aa676 7805
463d0183
JB		 7806 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7807 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7808 return;
7809
7810 nla_put_failure:
7811 genlmsg_cancel(msg, hdr);
7812 nlmsg_free(msg);
7813
7814}
7815
7816void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7817 struct net_device *netdev, u16 reason,
667503dd 7818 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7819{
7820 struct sk_buff *msg;
7821 void *hdr;
7822
667503dd 7823 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7824 if (!msg)
7825 return;
7826
7827 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7828 if (!hdr) {
7829 nlmsg_free(msg);
7830 return;
7831 }
7832
9360ffd1
DM		 7833 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7834 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7835 (from_ap && reason &&
7836 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7837 (from_ap &&
7838 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7839 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7840 goto nla_put_failure;
b23aa676 7841
3b7b72ee 7842 genlmsg_end(msg, hdr);
b23aa676 7843
463d0183
JB		 7844 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7845 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7846 return;
7847
7848 nla_put_failure:
7849 genlmsg_cancel(msg, hdr);
7850 nlmsg_free(msg);
7851
7852}
7853
04a773ad
JB		 7854void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7855 struct net_device *netdev, const u8 *bssid,
7856 gfp_t gfp)
7857{
7858 struct sk_buff *msg;
7859 void *hdr;
7860
fd2120ca 7861 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7862 if (!msg)
7863 return;
7864
7865 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7866 if (!hdr) {
7867 nlmsg_free(msg);
7868 return;
7869 }
7870
9360ffd1
DM		 7871 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7872 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7873 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7874 goto nla_put_failure;
04a773ad 7875
3b7b72ee 7876 genlmsg_end(msg, hdr);
04a773ad 7877
463d0183
JB		 7878 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7879 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7880 return;
7881
7882 nla_put_failure:
7883 genlmsg_cancel(msg, hdr);
7884 nlmsg_free(msg);
7885}
7886
c93b5e71
JC		 7887void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7888 struct net_device *netdev,
7889 const u8 *macaddr, const u8* ie, u8 ie_len,
7890 gfp_t gfp)
7891{
7892 struct sk_buff *msg;
7893 void *hdr;
7894
7895 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7896 if (!msg)
7897 return;
7898
7899 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7900 if (!hdr) {
7901 nlmsg_free(msg);
7902 return;
7903 }
7904
9360ffd1
DM		 7905 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7906 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7907 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7908 (ie_len && ie &&
7909 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7910 goto nla_put_failure;
c93b5e71 7911
3b7b72ee 7912 genlmsg_end(msg, hdr);
c93b5e71
JC		 7913
7914 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7915 nl80211_mlme_mcgrp.id, gfp);
7916 return;
7917
7918 nla_put_failure:
7919 genlmsg_cancel(msg, hdr);
7920 nlmsg_free(msg);
7921}
7922
a3b8b056
JM		 7923void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7924 struct net_device *netdev, const u8 *addr,
7925 enum nl80211_key_type key_type, int key_id,
e6d6e342 7926 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7927{
7928 struct sk_buff *msg;
7929 void *hdr;
7930
e6d6e342 7931 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7932 if (!msg)
7933 return;
7934
7935 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7936 if (!hdr) {
7937 nlmsg_free(msg);
7938 return;
7939 }
7940
9360ffd1
DM		 7941 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7942 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7943 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7944 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7945 (key_id != -1 &&
7946 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7947 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7948 goto nla_put_failure;
a3b8b056 7949
3b7b72ee 7950 genlmsg_end(msg, hdr);
a3b8b056 7951
463d0183
JB		 7952 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7953 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7954 return;
7955
7956 nla_put_failure:
7957 genlmsg_cancel(msg, hdr);
7958 nlmsg_free(msg);
7959}
7960
6bad8766
LR		 7961void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7962 struct ieee80211_channel *channel_before,
7963 struct ieee80211_channel *channel_after)
7964{
7965 struct sk_buff *msg;
7966 void *hdr;
7967 struct nlattr *nl_freq;
7968
fd2120ca 7969 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7970 if (!msg)
7971 return;
7972
7973 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7974 if (!hdr) {
7975 nlmsg_free(msg);
7976 return;
7977 }
7978
7979 /*
7980 * Since we are applying the beacon hint to a wiphy we know its
7981 * wiphy_idx is valid
7982 */
9360ffd1
DM		 7983 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
7984 goto nla_put_failure;
6bad8766
LR		 7985
7986 /* Before */
7987 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7988 if (!nl_freq)
7989 goto nla_put_failure;
7990 if (nl80211_msg_put_channel(msg, channel_before))
7991 goto nla_put_failure;
7992 nla_nest_end(msg, nl_freq);
7993
7994 /* After */
7995 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7996 if (!nl_freq)
7997 goto nla_put_failure;
7998 if (nl80211_msg_put_channel(msg, channel_after))
7999 goto nla_put_failure;
8000 nla_nest_end(msg, nl_freq);
8001
3b7b72ee 8002 genlmsg_end(msg, hdr);
6bad8766 8003
463d0183
JB		 8004 rcu_read_lock();
8005 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8006 GFP_ATOMIC);
8007 rcu_read_unlock();
6bad8766
LR		 8008
8009 return;
8010
8011nla_put_failure:
8012 genlmsg_cancel(msg, hdr);
8013 nlmsg_free(msg);
8014}
8015
9588bbd5
JM		 8016static void nl80211_send_remain_on_chan_event(
8017 int cmd, struct cfg80211_registered_device *rdev,
8018 struct net_device *netdev, u64 cookie,
8019 struct ieee80211_channel *chan,
8020 enum nl80211_channel_type channel_type,
8021 unsigned int duration, gfp_t gfp)
8022{
8023 struct sk_buff *msg;
8024 void *hdr;
8025
8026 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8027 if (!msg)
8028 return;
8029
8030 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8031 if (!hdr) {
8032 nlmsg_free(msg);
8033 return;
8034 }
8035
9360ffd1
DM		 8036 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8037 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8038 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8039 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8040 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8041 goto nla_put_failure;
9588bbd5 8042
9360ffd1
DM		 8043 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8044 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8045 goto nla_put_failure;
9588bbd5 8046
3b7b72ee 8047 genlmsg_end(msg, hdr);
9588bbd5
JM		 8048
8049 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8050 nl80211_mlme_mcgrp.id, gfp);
8051 return;
8052
8053 nla_put_failure:
8054 genlmsg_cancel(msg, hdr);
8055 nlmsg_free(msg);
8056}
8057
8058void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8059 struct net_device *netdev, u64 cookie,
8060 struct ieee80211_channel *chan,
8061 enum nl80211_channel_type channel_type,
8062 unsigned int duration, gfp_t gfp)
8063{
8064 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8065 rdev, netdev, cookie, chan,
8066 channel_type, duration, gfp);
8067}
8068
8069void nl80211_send_remain_on_channel_cancel(
8070 struct cfg80211_registered_device *rdev, struct net_device *netdev,
8071 u64 cookie, struct ieee80211_channel *chan,
8072 enum nl80211_channel_type channel_type, gfp_t gfp)
8073{
8074 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8075 rdev, netdev, cookie, chan,
8076 channel_type, 0, gfp);
8077}
8078
98b62183
JB		 8079void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8080 struct net_device *dev, const u8 *mac_addr,
8081 struct station_info *sinfo, gfp_t gfp)
8082{
8083 struct sk_buff *msg;
8084
8085 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8086 if (!msg)
8087 return;
8088
66266b3a
JL		 8089 if (nl80211_send_station(msg, 0, 0, 0,
8090 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8091 nlmsg_free(msg);
8092 return;
8093 }
8094
8095 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8096 nl80211_mlme_mcgrp.id, gfp);
8097}
8098
ec15e68b
JM		 8099void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8100 struct net_device *dev, const u8 *mac_addr,
8101 gfp_t gfp)
8102{
8103 struct sk_buff *msg;
8104 void *hdr;
8105
8106 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8107 if (!msg)
8108 return;
8109
8110 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8111 if (!hdr) {
8112 nlmsg_free(msg);
8113 return;
8114 }
8115
9360ffd1
DM		 8116 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8117 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8118 goto nla_put_failure;
ec15e68b 8119
3b7b72ee 8120 genlmsg_end(msg, hdr);
ec15e68b
JM		 8121
8122 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8123 nl80211_mlme_mcgrp.id, gfp);
8124 return;
8125
8126 nla_put_failure:
8127 genlmsg_cancel(msg, hdr);
8128 nlmsg_free(msg);
8129}
8130
b92ab5d8
JB		 8131static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8132 const u8 *addr, gfp_t gfp)
28946da7
JB		 8133{
8134 struct wireless_dev *wdev = dev->ieee80211_ptr;
8135 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8136 struct sk_buff *msg;
8137 void *hdr;
8138 int err;
8139 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8140
8141 if (!nlpid)
8142 return false;
8143
8144 msg = nlmsg_new(100, gfp);
8145 if (!msg)
8146 return true;
8147
b92ab5d8 8148 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8149 if (!hdr) {
8150 nlmsg_free(msg);
8151 return true;
8152 }
8153
9360ffd1
DM		 8154 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8155 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8156 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8157 goto nla_put_failure;
28946da7
JB		 8158
8159 err = genlmsg_end(msg, hdr);
8160 if (err < 0) {
8161 nlmsg_free(msg);
8162 return true;
8163 }
8164
8165 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8166 return true;
8167
8168 nla_put_failure:
8169 genlmsg_cancel(msg, hdr);
8170 nlmsg_free(msg);
8171 return true;
8172}
8173
b92ab5d8
JB		 8174bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8175{
8176 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8177 addr, gfp);
8178}
8179
8180bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8181 const u8 *addr, gfp_t gfp)
8182{
8183 return __nl80211_unexpected_frame(dev,
8184 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8185 addr, gfp);
8186}
8187
2e161f78
JB		 8188int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8189 struct net_device *netdev, u32 nlpid,
804483e9
JB		 8190 int freq, int sig_dbm,
8191 const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 8192{
8193 struct sk_buff *msg;
8194 void *hdr;
026331c4
JM		 8195
8196 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8197 if (!msg)
8198 return -ENOMEM;
8199
2e161f78 8200 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8201 if (!hdr) {
8202 nlmsg_free(msg);
8203 return -ENOMEM;
8204 }
8205
9360ffd1
DM		 8206 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8207 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8208 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8209 (sig_dbm &&
8210 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8211 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8212 goto nla_put_failure;
026331c4 8213
3b7b72ee 8214 genlmsg_end(msg, hdr);
026331c4 8215
3b7b72ee 8216 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 8217
8218 nla_put_failure:
8219 genlmsg_cancel(msg, hdr);
8220 nlmsg_free(msg);
8221 return -ENOBUFS;
8222}
8223
2e161f78
JB		 8224void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8225 struct net_device *netdev, u64 cookie,
8226 const u8 *buf, size_t len, bool ack,
8227 gfp_t gfp)
026331c4
JM		 8228{
8229 struct sk_buff *msg;
8230 void *hdr;
8231
8232 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8233 if (!msg)
8234 return;
8235
2e161f78 8236 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8237 if (!hdr) {
8238 nlmsg_free(msg);
8239 return;
8240 }
8241
9360ffd1
DM		 8242 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8243 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8244 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8245 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8246 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8247 goto nla_put_failure;
026331c4 8248
3b7b72ee 8249 genlmsg_end(msg, hdr);
026331c4
JM		 8250
8251 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8252 return;
8253
8254 nla_put_failure:
8255 genlmsg_cancel(msg, hdr);
8256 nlmsg_free(msg);
8257}
8258
d6dc1a38
JO		 8259void
8260nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8261 struct net_device *netdev,
8262 enum nl80211_cqm_rssi_threshold_event rssi_event,
8263 gfp_t gfp)
8264{
8265 struct sk_buff *msg;
8266 struct nlattr *pinfoattr;
8267 void *hdr;
8268
8269 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8270 if (!msg)
8271 return;
8272
8273 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8274 if (!hdr) {
8275 nlmsg_free(msg);
8276 return;
8277 }
8278
9360ffd1
DM		 8279 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8280 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8281 goto nla_put_failure;
d6dc1a38
JO		 8282
8283 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8284 if (!pinfoattr)
8285 goto nla_put_failure;
8286
9360ffd1
DM		 8287 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8288 rssi_event))
8289 goto nla_put_failure;
d6dc1a38
JO		 8290
8291 nla_nest_end(msg, pinfoattr);
8292
3b7b72ee 8293 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8294
8295 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8296 nl80211_mlme_mcgrp.id, gfp);
8297 return;
8298
8299 nla_put_failure:
8300 genlmsg_cancel(msg, hdr);
8301 nlmsg_free(msg);
8302}
8303
e5497d76
JB		 8304void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8305 struct net_device *netdev, const u8 *bssid,
8306 const u8 *replay_ctr, gfp_t gfp)
8307{
8308 struct sk_buff *msg;
8309 struct nlattr *rekey_attr;
8310 void *hdr;
8311
8312 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8313 if (!msg)
8314 return;
8315
8316 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8317 if (!hdr) {
8318 nlmsg_free(msg);
8319 return;
8320 }
8321
9360ffd1
DM		 8322 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8323 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8324 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8325 goto nla_put_failure;
e5497d76
JB		 8326
8327 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8328 if (!rekey_attr)
8329 goto nla_put_failure;
8330
9360ffd1
DM		 8331 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8332 NL80211_REPLAY_CTR_LEN, replay_ctr))
8333 goto nla_put_failure;
e5497d76
JB		 8334
8335 nla_nest_end(msg, rekey_attr);
8336
3b7b72ee 8337 genlmsg_end(msg, hdr);
e5497d76
JB		 8338
8339 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8340 nl80211_mlme_mcgrp.id, gfp);
8341 return;
8342
8343 nla_put_failure:
8344 genlmsg_cancel(msg, hdr);
8345 nlmsg_free(msg);
8346}
8347
c9df56b4
JM		 8348void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8349 struct net_device *netdev, int index,
8350 const u8 *bssid, bool preauth, gfp_t gfp)
8351{
8352 struct sk_buff *msg;
8353 struct nlattr *attr;
8354 void *hdr;
8355
8356 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8357 if (!msg)
8358 return;
8359
8360 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8361 if (!hdr) {
8362 nlmsg_free(msg);
8363 return;
8364 }
8365
9360ffd1
DM		 8366 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8367 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8368 goto nla_put_failure;
c9df56b4
JM		 8369
8370 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8371 if (!attr)
8372 goto nla_put_failure;
8373
9360ffd1
DM		 8374 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8375 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8376 (preauth &&
8377 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8378 goto nla_put_failure;
c9df56b4
JM		 8379
8380 nla_nest_end(msg, attr);
8381
3b7b72ee 8382 genlmsg_end(msg, hdr);
c9df56b4
JM		 8383
8384 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8385 nl80211_mlme_mcgrp.id, gfp);
8386 return;
8387
8388 nla_put_failure:
8389 genlmsg_cancel(msg, hdr);
8390 nlmsg_free(msg);
8391}
8392
5314526b
TP		 8393void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8394 struct net_device *netdev, int freq,
8395 enum nl80211_channel_type type, gfp_t gfp)
8396{
8397 struct sk_buff *msg;
8398 void *hdr;
8399
8400 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8401 if (!msg)
8402 return;
8403
8404 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8405 if (!hdr) {
8406 nlmsg_free(msg);
8407 return;
8408 }
8409
7eab0f64
JL		 8410 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8411 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8412 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8413 goto nla_put_failure;
5314526b
TP		 8414
8415 genlmsg_end(msg, hdr);
8416
8417 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8418 nl80211_mlme_mcgrp.id, gfp);
8419 return;
8420
8421 nla_put_failure:
8422 genlmsg_cancel(msg, hdr);
8423 nlmsg_free(msg);
8424}
8425
c063dbf5
JB		 8426void
8427nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8428 struct net_device *netdev, const u8 *peer,
8429 u32 num_packets, gfp_t gfp)
8430{
8431 struct sk_buff *msg;
8432 struct nlattr *pinfoattr;
8433 void *hdr;
8434
8435 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8436 if (!msg)
8437 return;
8438
8439 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8440 if (!hdr) {
8441 nlmsg_free(msg);
8442 return;
8443 }
8444
9360ffd1
DM		 8445 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8446 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8447 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8448 goto nla_put_failure;
c063dbf5
JB		 8449
8450 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8451 if (!pinfoattr)
8452 goto nla_put_failure;
8453
9360ffd1
DM		 8454 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8455 goto nla_put_failure;
c063dbf5
JB		 8456
8457 nla_nest_end(msg, pinfoattr);
8458
3b7b72ee 8459 genlmsg_end(msg, hdr);
c063dbf5
JB		 8460
8461 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8462 nl80211_mlme_mcgrp.id, gfp);
8463 return;
8464
8465 nla_put_failure:
8466 genlmsg_cancel(msg, hdr);
8467 nlmsg_free(msg);
8468}
8469
7f6cf311
JB		 8470void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8471 u64 cookie, bool acked, gfp_t gfp)
8472{
8473 struct wireless_dev *wdev = dev->ieee80211_ptr;
8474 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8475 struct sk_buff *msg;
8476 void *hdr;
8477 int err;
8478
8479 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8480 if (!msg)
8481 return;
8482
8483 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8484 if (!hdr) {
8485 nlmsg_free(msg);
8486 return;
8487 }
8488
9360ffd1
DM		 8489 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8490 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8491 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8492 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8493 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8494 goto nla_put_failure;
7f6cf311
JB		 8495
8496 err = genlmsg_end(msg, hdr);
8497 if (err < 0) {
8498 nlmsg_free(msg);
8499 return;
8500 }
8501
8502 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8503 nl80211_mlme_mcgrp.id, gfp);
8504 return;
8505
8506 nla_put_failure:
8507 genlmsg_cancel(msg, hdr);
8508 nlmsg_free(msg);
8509}
8510EXPORT_SYMBOL(cfg80211_probe_status);
8511
5e760230
JB		 8512void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8513 const u8 *frame, size_t len,
804483e9 8514 int freq, int sig_dbm, gfp_t gfp)
5e760230
JB		 8515{
8516 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8517 struct sk_buff *msg;
8518 void *hdr;
8519 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8520
8521 if (!nlpid)
8522 return;
8523
8524 msg = nlmsg_new(len + 100, gfp);
8525 if (!msg)
8526 return;
8527
8528 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8529 if (!hdr) {
8530 nlmsg_free(msg);
8531 return;
8532 }
8533
9360ffd1
DM		 8534 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8535 (freq &&
8536 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8537 (sig_dbm &&
8538 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8539 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8540 goto nla_put_failure;
5e760230
JB		 8541
8542 genlmsg_end(msg, hdr);
8543
8544 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8545 return;
8546
8547 nla_put_failure:
8548 genlmsg_cancel(msg, hdr);
8549 nlmsg_free(msg);
8550}
8551EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8552
026331c4
JM		 8553static int nl80211_netlink_notify(struct notifier_block * nb,
8554 unsigned long state,
8555 void *_notify)
8556{
8557 struct netlink_notify *notify = _notify;
8558 struct cfg80211_registered_device *rdev;
8559 struct wireless_dev *wdev;
8560
8561 if (state != NETLINK_URELEASE)
8562 return NOTIFY_DONE;
8563
8564 rcu_read_lock();
8565
5e760230 8566 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 8567 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
2e161f78 8568 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 8569 if (rdev->ap_beacons_nlpid == notify->pid)
8570 rdev->ap_beacons_nlpid = 0;
8571 }
026331c4
JM		 8572
8573 rcu_read_unlock();
8574
8575 return NOTIFY_DONE;
8576}
8577
8578static struct notifier_block nl80211_netlink_notifier = {
8579 .notifier_call = nl80211_netlink_notify,
8580};
8581
55682965
JB		 8582/* initialisation/exit functions */
8583
8584int nl80211_init(void)
8585{
0d63cbb5 8586 int err;
55682965 8587
0d63cbb5
MM		 8588 err = genl_register_family_with_ops(&nl80211_fam,
8589 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 8590 if (err)
8591 return err;
8592
55682965
JB		 8593 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8594 if (err)
8595 goto err_out;
8596
2a519311
JB		 8597 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8598 if (err)
8599 goto err_out;
8600
73d54c9e
LR		 8601 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8602 if (err)
8603 goto err_out;
8604
6039f6d2
JM		 8605 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8606 if (err)
8607 goto err_out;
8608
aff89a9b
JB		 8609#ifdef CONFIG_NL80211_TESTMODE
8610 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8611 if (err)
8612 goto err_out;
8613#endif
8614
026331c4
JM		 8615 err = netlink_register_notifier(&nl80211_netlink_notifier);
8616 if (err)
8617 goto err_out;
8618
55682965
JB		 8619 return 0;
8620 err_out:
8621 genl_unregister_family(&nl80211_fam);
8622 return err;
8623}
8624
8625void nl80211_exit(void)
8626{
026331c4 8627 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 8628 genl_unregister_family(&nl80211_fam);
8629}
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