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mac80211: make ieee80211_beacon_connection_loss_work static
[GitHub/mt8127/android_kernel_alcatel_ttab.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 },
57b5ce07 357 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
55682965
JB		 358};
359
e31b8213 360/* policy for the key attributes */
b54452b0 361static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 362 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 363 [NL80211_KEY_IDX] = { .type = NLA_U8 },
364 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 365 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 366 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
367 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 368 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 369 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
370};
371
372/* policy for the key default flags */
373static const struct nla_policy
374nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
375 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
376 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 377};
378
ff1b6e69
JB		 379/* policy for WoWLAN attributes */
380static const struct nla_policy
381nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
382 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
383 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
384 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
385 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 386 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
387 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
388 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
389 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 390};
391
e5497d76
JB		 392/* policy for GTK rekey offload attributes */
393static const struct nla_policy
394nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
395 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
396 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
397 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
398};
399
a1f1c21c
LC		 400static const struct nla_policy
401nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
4a4ab0d7 402 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
a1f1c21c 403 .len = IEEE80211_MAX_SSID_LEN },
88e920b4 404 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
a1f1c21c
LC		 405};
406
a043897a
HS		 407/* ifidx get helper */
408static int nl80211_get_ifidx(struct netlink_callback *cb)
409{
410 int res;
411
412 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
413 nl80211_fam.attrbuf, nl80211_fam.maxattr,
414 nl80211_policy);
415 if (res)
416 return res;
417
418 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
419 return -EINVAL;
420
421 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
422 if (!res)
423 return -EINVAL;
424 return res;
425}
426
67748893
JB		 427static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
428 struct netlink_callback *cb,
429 struct cfg80211_registered_device **rdev,
430 struct net_device **dev)
431{
432 int ifidx = cb->args[0];
433 int err;
434
435 if (!ifidx)
436 ifidx = nl80211_get_ifidx(cb);
437 if (ifidx < 0)
438 return ifidx;
439
440 cb->args[0] = ifidx;
441
442 rtnl_lock();
443
444 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
445 if (!*dev) {
446 err = -ENODEV;
447 goto out_rtnl;
448 }
449
450 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 451 if (IS_ERR(*rdev)) {
452 err = PTR_ERR(*rdev);
67748893
JB		 453 goto out_rtnl;
454 }
455
456 return 0;
457 out_rtnl:
458 rtnl_unlock();
459 return err;
460}
461
462static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
463{
464 cfg80211_unlock_rdev(rdev);
465 rtnl_unlock();
466}
467
f4a11bb0
JB		 468/* IE validation */
469static bool is_valid_ie_attr(const struct nlattr *attr)
470{
471 const u8 *pos;
472 int len;
473
474 if (!attr)
475 return true;
476
477 pos = nla_data(attr);
478 len = nla_len(attr);
479
480 while (len) {
481 u8 elemlen;
482
483 if (len < 2)
484 return false;
485 len -= 2;
486
487 elemlen = pos[1];
488 if (elemlen > len)
489 return false;
490
491 len -= elemlen;
492 pos += 2 + elemlen;
493 }
494
495 return true;
496}
497
55682965
JB		 498/* message building helper */
499static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
500 int flags, u8 cmd)
501{
502 /* since there is no private header just add the generic one */
503 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
504}
505
5dab3b8a
LR		 506static int nl80211_msg_put_channel(struct sk_buff *msg,
507 struct ieee80211_channel *chan)
508{
9360ffd1
DM		 509 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
510 chan->center_freq))
511 goto nla_put_failure;
5dab3b8a 512
9360ffd1
DM		 513 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
514 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
515 goto nla_put_failure;
516 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
517 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
518 goto nla_put_failure;
519 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
520 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
521 goto nla_put_failure;
522 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
523 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
524 goto nla_put_failure;
5dab3b8a 525
9360ffd1
DM		 526 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
527 DBM_TO_MBM(chan->max_power)))
528 goto nla_put_failure;
5dab3b8a
LR		 529
530 return 0;
531
532 nla_put_failure:
533 return -ENOBUFS;
534}
535
55682965
JB		 536/* netlink command implementations */
537
b9454e83
JB		 538struct key_parse {
539 struct key_params p;
540 int idx;
e31b8213 541 int type;
b9454e83 542 bool def, defmgmt;
dbd2fd65 543 bool def_uni, def_multi;
b9454e83
JB		 544};
545
546static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
547{
548 struct nlattr *tb[NL80211_KEY_MAX + 1];
549 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
550 nl80211_key_policy);
551 if (err)
552 return err;
553
554 k->def = !!tb[NL80211_KEY_DEFAULT];
555 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
556
dbd2fd65
JB		 557 if (k->def) {
558 k->def_uni = true;
559 k->def_multi = true;
560 }
561 if (k->defmgmt)
562 k->def_multi = true;
563
b9454e83
JB		 564 if (tb[NL80211_KEY_IDX])
565 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
566
567 if (tb[NL80211_KEY_DATA]) {
568 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
569 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
570 }
571
572 if (tb[NL80211_KEY_SEQ]) {
573 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
574 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
575 }
576
577 if (tb[NL80211_KEY_CIPHER])
578 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
579
e31b8213
JB		 580 if (tb[NL80211_KEY_TYPE]) {
581 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
582 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
583 return -EINVAL;
584 }
585
dbd2fd65
JB		 586 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
587 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 588 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
589 tb[NL80211_KEY_DEFAULT_TYPES],
590 nl80211_key_default_policy);
dbd2fd65
JB		 591 if (err)
592 return err;
593
594 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
595 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
596 }
597
b9454e83
JB		 598 return 0;
599}
600
601static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
602{
603 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
604 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
605 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
606 }
607
608 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
609 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
610 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
611 }
612
613 if (info->attrs[NL80211_ATTR_KEY_IDX])
614 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
615
616 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
617 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
618
619 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
620 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
621
dbd2fd65
JB		 622 if (k->def) {
623 k->def_uni = true;
624 k->def_multi = true;
625 }
626 if (k->defmgmt)
627 k->def_multi = true;
628
e31b8213
JB		 629 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
630 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
631 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
632 return -EINVAL;
633 }
634
dbd2fd65
JB		 635 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
636 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
637 int err = nla_parse_nested(
638 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
639 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
640 nl80211_key_default_policy);
641 if (err)
642 return err;
643
644 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
645 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
646 }
647
b9454e83
JB		 648 return 0;
649}
650
651static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
652{
653 int err;
654
655 memset(k, 0, sizeof(*k));
656 k->idx = -1;
e31b8213 657 k->type = -1;
b9454e83
JB		 658
659 if (info->attrs[NL80211_ATTR_KEY])
660 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
661 else
662 err = nl80211_parse_key_old(info, k);
663
664 if (err)
665 return err;
666
667 if (k->def && k->defmgmt)
668 return -EINVAL;
669
dbd2fd65
JB		 670 if (k->defmgmt) {
671 if (k->def_uni || !k->def_multi)
672 return -EINVAL;
673 }
674
b9454e83
JB		 675 if (k->idx != -1) {
676 if (k->defmgmt) {
677 if (k->idx < 4 || k->idx > 5)
678 return -EINVAL;
679 } else if (k->def) {
680 if (k->idx < 0 || k->idx > 3)
681 return -EINVAL;
682 } else {
683 if (k->idx < 0 || k->idx > 5)
684 return -EINVAL;
685 }
686 }
687
688 return 0;
689}
690
fffd0934
JB		 691static struct cfg80211_cached_keys *
692nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
693 struct nlattr *keys)
694{
695 struct key_parse parse;
696 struct nlattr *key;
697 struct cfg80211_cached_keys *result;
698 int rem, err, def = 0;
699
700 result = kzalloc(sizeof(*result), GFP_KERNEL);
701 if (!result)
702 return ERR_PTR(-ENOMEM);
703
704 result->def = -1;
705 result->defmgmt = -1;
706
707 nla_for_each_nested(key, keys, rem) {
708 memset(&parse, 0, sizeof(parse));
709 parse.idx = -1;
710
711 err = nl80211_parse_key_new(key, &parse);
712 if (err)
713 goto error;
714 err = -EINVAL;
715 if (!parse.p.key)
716 goto error;
717 if (parse.idx < 0 || parse.idx > 4)
718 goto error;
719 if (parse.def) {
720 if (def)
721 goto error;
722 def = 1;
723 result->def = parse.idx;
dbd2fd65
JB		 724 if (!parse.def_uni || !parse.def_multi)
725 goto error;
fffd0934
JB		 726 } else if (parse.defmgmt)
727 goto error;
728 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 729 parse.idx, false, NULL);
fffd0934
JB		 730 if (err)
731 goto error;
732 result->params[parse.idx].cipher = parse.p.cipher;
733 result->params[parse.idx].key_len = parse.p.key_len;
734 result->params[parse.idx].key = result->data[parse.idx];
735 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
736 }
737
738 return result;
739 error:
740 kfree(result);
741 return ERR_PTR(err);
742}
743
744static int nl80211_key_allowed(struct wireless_dev *wdev)
745{
746 ASSERT_WDEV_LOCK(wdev);
747
fffd0934
JB		 748 switch (wdev->iftype) {
749 case NL80211_IFTYPE_AP:
750 case NL80211_IFTYPE_AP_VLAN:
074ac8df 751 case NL80211_IFTYPE_P2P_GO:
ff973af7 752 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 753 break;
754 case NL80211_IFTYPE_ADHOC:
755 if (!wdev->current_bss)
756 return -ENOLINK;
757 break;
758 case NL80211_IFTYPE_STATION:
074ac8df 759 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 760 if (wdev->sme_state != CFG80211_SME_CONNECTED)
761 return -ENOLINK;
762 break;
763 default:
764 return -EINVAL;
765 }
766
767 return 0;
768}
769
7527a782
JB		 770static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
771{
772 struct nlattr *nl_modes = nla_nest_start(msg, attr);
773 int i;
774
775 if (!nl_modes)
776 goto nla_put_failure;
777
778 i = 0;
779 while (ifmodes) {
9360ffd1
DM		 780 if ((ifmodes & 1) && nla_put_flag(msg, i))
781 goto nla_put_failure;
7527a782
JB		 782 ifmodes >>= 1;
783 i++;
784 }
785
786 nla_nest_end(msg, nl_modes);
787 return 0;
788
789nla_put_failure:
790 return -ENOBUFS;
791}
792
793static int nl80211_put_iface_combinations(struct wiphy *wiphy,
794 struct sk_buff *msg)
795{
796 struct nlattr *nl_combis;
797 int i, j;
798
799 nl_combis = nla_nest_start(msg,
800 NL80211_ATTR_INTERFACE_COMBINATIONS);
801 if (!nl_combis)
802 goto nla_put_failure;
803
804 for (i = 0; i < wiphy->n_iface_combinations; i++) {
805 const struct ieee80211_iface_combination *c;
806 struct nlattr *nl_combi, *nl_limits;
807
808 c = &wiphy->iface_combinations[i];
809
810 nl_combi = nla_nest_start(msg, i + 1);
811 if (!nl_combi)
812 goto nla_put_failure;
813
814 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
815 if (!nl_limits)
816 goto nla_put_failure;
817
818 for (j = 0; j < c->n_limits; j++) {
819 struct nlattr *nl_limit;
820
821 nl_limit = nla_nest_start(msg, j + 1);
822 if (!nl_limit)
823 goto nla_put_failure;
9360ffd1
DM		 824 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
825 c->limits[j].max))
826 goto nla_put_failure;
7527a782
JB		 827 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
828 c->limits[j].types))
829 goto nla_put_failure;
830 nla_nest_end(msg, nl_limit);
831 }
832
833 nla_nest_end(msg, nl_limits);
834
9360ffd1
DM		 835 if (c->beacon_int_infra_match &&
836 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
837 goto nla_put_failure;
838 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
839 c->num_different_channels) ||
840 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
841 c->max_interfaces))
842 goto nla_put_failure;
7527a782
JB		 843
844 nla_nest_end(msg, nl_combi);
845 }
846
847 nla_nest_end(msg, nl_combis);
848
849 return 0;
850nla_put_failure:
851 return -ENOBUFS;
852}
853
55682965
JB		 854static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
855 struct cfg80211_registered_device *dev)
856{
857 void *hdr;
ee688b00
JB		 858 struct nlattr *nl_bands, *nl_band;
859 struct nlattr *nl_freqs, *nl_freq;
860 struct nlattr *nl_rates, *nl_rate;
8fdc621d 861 struct nlattr *nl_cmds;
ee688b00
JB		 862 enum ieee80211_band band;
863 struct ieee80211_channel *chan;
864 struct ieee80211_rate *rate;
865 int i;
2e161f78
JB		 866 const struct ieee80211_txrx_stypes *mgmt_stypes =
867 dev->wiphy.mgmt_stypes;
55682965
JB		 868
869 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
870 if (!hdr)
871 return -1;
872
9360ffd1
DM		 873 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
874 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
875 nla_put_u32(msg, NL80211_ATTR_GENERATION,
876 cfg80211_rdev_list_generation) ||
877 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
878 dev->wiphy.retry_short) ||
879 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
880 dev->wiphy.retry_long) ||
881 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
882 dev->wiphy.frag_threshold) ||
883 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
884 dev->wiphy.rts_threshold) ||
885 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
886 dev->wiphy.coverage_class) ||
887 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
888 dev->wiphy.max_scan_ssids) ||
889 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
890 dev->wiphy.max_sched_scan_ssids) ||
891 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
892 dev->wiphy.max_scan_ie_len) ||
893 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
894 dev->wiphy.max_sched_scan_ie_len) ||
895 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
896 dev->wiphy.max_match_sets))
897 goto nla_put_failure;
898
899 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
900 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
901 goto nla_put_failure;
902 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
903 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
904 goto nla_put_failure;
905 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
906 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
907 goto nla_put_failure;
908 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
909 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
910 goto nla_put_failure;
911 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
912 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
913 goto nla_put_failure;
914 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
915 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
916 goto nla_put_failure;
917
918 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
919 sizeof(u32) * dev->wiphy.n_cipher_suites,
920 dev->wiphy.cipher_suites))
921 goto nla_put_failure;
922
923 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
924 dev->wiphy.max_num_pmkids))
925 goto nla_put_failure;
926
927 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
928 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
929 goto nla_put_failure;
930
931 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
932 dev->wiphy.available_antennas_tx) ||
933 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
934 dev->wiphy.available_antennas_rx))
935 goto nla_put_failure;
936
937 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
938 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
939 dev->wiphy.probe_resp_offload))
940 goto nla_put_failure;
87bbbe22 941
7f531e03
BR		 942 if ((dev->wiphy.available_antennas_tx ||
943 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 944 u32 tx_ant = 0, rx_ant = 0;
945 int res;
946 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
947 if (!res) {
9360ffd1
DM		 948 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
949 tx_ant) ||
950 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
951 rx_ant))
952 goto nla_put_failure;
afe0cbf8
BR		 953 }
954 }
955
7527a782
JB		 956 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
957 dev->wiphy.interface_modes))
f59ac048
LR		 958 goto nla_put_failure;
959
ee688b00
JB		 960 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
961 if (!nl_bands)
962 goto nla_put_failure;
963
964 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
965 if (!dev->wiphy.bands[band])
966 continue;
967
968 nl_band = nla_nest_start(msg, band);
969 if (!nl_band)
970 goto nla_put_failure;
971
d51626df 972 /* add HT info */
9360ffd1
DM		 973 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
974 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
975 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
976 &dev->wiphy.bands[band]->ht_cap.mcs) ||
977 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
978 dev->wiphy.bands[band]->ht_cap.cap) ||
979 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
980 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
981 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
982 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
983 goto nla_put_failure;
d51626df 984
bf0c111e
MP		 985 /* add VHT info */
986 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
987 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
988 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
989 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
990 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
991 dev->wiphy.bands[band]->vht_cap.cap)))
992 goto nla_put_failure;
993
ee688b00
JB		 994 /* add frequencies */
995 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
996 if (!nl_freqs)
997 goto nla_put_failure;
998
999 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1000 nl_freq = nla_nest_start(msg, i);
1001 if (!nl_freq)
1002 goto nla_put_failure;
1003
1004 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 1005
1006 if (nl80211_msg_put_channel(msg, chan))
1007 goto nla_put_failure;
e2f367f2 1008
ee688b00
JB		 1009 nla_nest_end(msg, nl_freq);
1010 }
1011
1012 nla_nest_end(msg, nl_freqs);
1013
1014 /* add bitrates */
1015 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1016 if (!nl_rates)
1017 goto nla_put_failure;
1018
1019 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1020 nl_rate = nla_nest_start(msg, i);
1021 if (!nl_rate)
1022 goto nla_put_failure;
1023
1024 rate = &dev->wiphy.bands[band]->bitrates[i];
9360ffd1
DM		 1025 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1026 rate->bitrate))
1027 goto nla_put_failure;
1028 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1029 nla_put_flag(msg,
1030 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1031 goto nla_put_failure;
ee688b00
JB		 1032
1033 nla_nest_end(msg, nl_rate);
1034 }
1035
1036 nla_nest_end(msg, nl_rates);
1037
1038 nla_nest_end(msg, nl_band);
1039 }
1040 nla_nest_end(msg, nl_bands);
1041
8fdc621d
JB		 1042 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1043 if (!nl_cmds)
1044 goto nla_put_failure;
1045
1046 i = 0;
1047#define CMD(op, n) \
1048 do { \
1049 if (dev->ops->op) { \
1050 i++; \
9360ffd1
DM		 1051 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1052 goto nla_put_failure; \
8fdc621d
JB		 1053 } \
1054 } while (0)
1055
1056 CMD(add_virtual_intf, NEW_INTERFACE);
1057 CMD(change_virtual_intf, SET_INTERFACE);
1058 CMD(add_key, NEW_KEY);
8860020e 1059 CMD(start_ap, START_AP);
8fdc621d
JB		 1060 CMD(add_station, NEW_STATION);
1061 CMD(add_mpath, NEW_MPATH);
24bdd9f4 1062 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 1063 CMD(change_bss, SET_BSS);
636a5d36
JM		 1064 CMD(auth, AUTHENTICATE);
1065 CMD(assoc, ASSOCIATE);
1066 CMD(deauth, DEAUTHENTICATE);
1067 CMD(disassoc, DISASSOCIATE);
04a773ad 1068 CMD(join_ibss, JOIN_IBSS);
29cbe68c 1069 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 1070 CMD(set_pmksa, SET_PMKSA);
1071 CMD(del_pmksa, DEL_PMKSA);
1072 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 1073 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1074 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 1075 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 1076 CMD(mgmt_tx, FRAME);
f7ca38df 1077 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 1078 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183 1079 i++;
9360ffd1
DM		 1080 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1081 goto nla_put_failure;
463d0183 1082 }
e8c9bd5b 1083 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
cc1d2806 1084 dev->ops->join_mesh) {
aa430da4
JB		 1085 i++;
1086 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1087 goto nla_put_failure;
1088 }
e8347eba 1089 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 1090 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1091 CMD(tdls_mgmt, TDLS_MGMT);
1092 CMD(tdls_oper, TDLS_OPER);
1093 }
807f8a8c
LC		 1094 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1095 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 1096 CMD(probe_client, PROBE_CLIENT);
1d9d9213 1097 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 1098 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1099 i++;
9360ffd1
DM		 1100 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1101 goto nla_put_failure;
5e760230 1102 }
8fdc621d 1103
4745fc09
KV		 1104#ifdef CONFIG_NL80211_TESTMODE
1105 CMD(testmode_cmd, TESTMODE);
1106#endif
1107
8fdc621d 1108#undef CMD
b23aa676 1109
6829c878 1110 if (dev->ops->connect || dev->ops->auth) {
b23aa676 1111 i++;
9360ffd1
DM		 1112 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1113 goto nla_put_failure;
b23aa676
SO		 1114 }
1115
6829c878 1116 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676 1117 i++;
9360ffd1
DM		 1118 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1119 goto nla_put_failure;
b23aa676
SO		 1120 }
1121
8fdc621d
JB		 1122 nla_nest_end(msg, nl_cmds);
1123
7c4ef712 1124 if (dev->ops->remain_on_channel &&
9360ffd1
DM		 1125 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1126 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1127 dev->wiphy.max_remain_on_channel_duration))
1128 goto nla_put_failure;
a293911d 1129
9360ffd1
DM		 1130 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1131 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1132 goto nla_put_failure;
f7ca38df 1133
2e161f78
JB		 1134 if (mgmt_stypes) {
1135 u16 stypes;
1136 struct nlattr *nl_ftypes, *nl_ifs;
1137 enum nl80211_iftype ift;
1138
1139 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1140 if (!nl_ifs)
1141 goto nla_put_failure;
1142
1143 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1144 nl_ftypes = nla_nest_start(msg, ift);
1145 if (!nl_ftypes)
1146 goto nla_put_failure;
1147 i = 0;
1148 stypes = mgmt_stypes[ift].tx;
1149 while (stypes) {
9360ffd1
DM		 1150 if ((stypes & 1) &&
1151 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1152 (i << 4) | IEEE80211_FTYPE_MGMT))
1153 goto nla_put_failure;
2e161f78
JB		 1154 stypes >>= 1;
1155 i++;
1156 }
1157 nla_nest_end(msg, nl_ftypes);
1158 }
1159
74b70a4e
JB		 1160 nla_nest_end(msg, nl_ifs);
1161
2e161f78
JB		 1162 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1163 if (!nl_ifs)
1164 goto nla_put_failure;
1165
1166 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1167 nl_ftypes = nla_nest_start(msg, ift);
1168 if (!nl_ftypes)
1169 goto nla_put_failure;
1170 i = 0;
1171 stypes = mgmt_stypes[ift].rx;
1172 while (stypes) {
9360ffd1
DM		 1173 if ((stypes & 1) &&
1174 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1175 (i << 4) | IEEE80211_FTYPE_MGMT))
1176 goto nla_put_failure;
2e161f78
JB		 1177 stypes >>= 1;
1178 i++;
1179 }
1180 nla_nest_end(msg, nl_ftypes);
1181 }
1182 nla_nest_end(msg, nl_ifs);
1183 }
1184
dfb89c56 1185#ifdef CONFIG_PM
ff1b6e69
JB		 1186 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1187 struct nlattr *nl_wowlan;
1188
1189 nl_wowlan = nla_nest_start(msg,
1190 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1191 if (!nl_wowlan)
1192 goto nla_put_failure;
1193
9360ffd1
DM		 1194 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1195 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1196 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1197 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1198 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1199 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1200 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1201 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1202 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1203 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1204 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1205 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1206 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1207 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1208 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1209 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1210 goto nla_put_failure;
ff1b6e69
JB		 1211 if (dev->wiphy.wowlan.n_patterns) {
1212 struct nl80211_wowlan_pattern_support pat = {
1213 .max_patterns = dev->wiphy.wowlan.n_patterns,
1214 .min_pattern_len =
1215 dev->wiphy.wowlan.pattern_min_len,
1216 .max_pattern_len =
1217 dev->wiphy.wowlan.pattern_max_len,
1218 };
9360ffd1
DM		 1219 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1220 sizeof(pat), &pat))
1221 goto nla_put_failure;
ff1b6e69
JB		 1222 }
1223
1224 nla_nest_end(msg, nl_wowlan);
1225 }
dfb89c56 1226#endif
ff1b6e69 1227
7527a782
JB		 1228 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1229 dev->wiphy.software_iftypes))
1230 goto nla_put_failure;
1231
1232 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1233 goto nla_put_failure;
1234
9360ffd1
DM		 1235 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1236 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1237 dev->wiphy.ap_sme_capa))
1238 goto nla_put_failure;
562a7480 1239
9360ffd1
DM		 1240 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1241 dev->wiphy.features))
1242 goto nla_put_failure;
1f074bd8 1243
9360ffd1
DM		 1244 if (dev->wiphy.ht_capa_mod_mask &&
1245 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1246 sizeof(*dev->wiphy.ht_capa_mod_mask),
1247 dev->wiphy.ht_capa_mod_mask))
1248 goto nla_put_failure;
7e7c8926 1249
55682965
JB		 1250 return genlmsg_end(msg, hdr);
1251
1252 nla_put_failure:
bc3ed28c
TG		 1253 genlmsg_cancel(msg, hdr);
1254 return -EMSGSIZE;
55682965
JB		 1255}
1256
1257static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1258{
1259 int idx = 0;
1260 int start = cb->args[0];
1261 struct cfg80211_registered_device *dev;
1262
a1794390 1263 mutex_lock(&cfg80211_mutex);
79c97e97 1264 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1265 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1266 continue;
b4637271 1267 if (++idx <= start)
55682965
JB		 1268 continue;
1269 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1270 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1271 dev) < 0) {
1272 idx--;
55682965 1273 break;
b4637271 1274 }
55682965 1275 }
a1794390 1276 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1277
1278 cb->args[0] = idx;
1279
1280 return skb->len;
1281}
1282
1283static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1284{
1285 struct sk_buff *msg;
4c476991 1286 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1287
fd2120ca 1288 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1289 if (!msg)
4c476991 1290 return -ENOMEM;
55682965 1291
4c476991
JB		 1292 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1293 nlmsg_free(msg);
1294 return -ENOBUFS;
1295 }
55682965 1296
134e6375 1297 return genlmsg_reply(msg, info);
55682965
JB		 1298}
1299
31888487
JM		 1300static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1301 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1302 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1303 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1304 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1305 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1306};
1307
1308static int parse_txq_params(struct nlattr *tb[],
1309 struct ieee80211_txq_params *txq_params)
1310{
a3304b0a 1311 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1312 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1313 !tb[NL80211_TXQ_ATTR_AIFS])
1314 return -EINVAL;
1315
a3304b0a 1316 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1317 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1318 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1319 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1320 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1321
a3304b0a
JB		 1322 if (txq_params->ac >= NL80211_NUM_ACS)
1323 return -EINVAL;
1324
31888487
JM		 1325 return 0;
1326}
1327
f444de05
JB		 1328static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1329{
1330 /*
cc1d2806
JB		 1331 * You can only set the channel explicitly for WDS interfaces,
1332 * all others have their channel managed via their respective
1333 * "establish a connection" command (connect, join, ...)
1334 *
1335 * For AP/GO and mesh mode, the channel can be set with the
1336 * channel userspace API, but is only stored and passed to the
1337 * low-level driver when the AP starts or the mesh is joined.
1338 * This is for backward compatibility, userspace can also give
1339 * the channel in the start-ap or join-mesh commands instead.
f444de05
JB		 1340 *
1341 * Monitors are special as they are normally slaved to
e8c9bd5b
JB		 1342 * whatever else is going on, so they have their own special
1343 * operation to set the monitor channel if possible.
f444de05
JB		 1344 */
1345 return !wdev ||
1346 wdev->iftype == NL80211_IFTYPE_AP ||
f444de05 1347 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1348 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1349 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1350}
1351
cd6c6598
JB		 1352static bool nl80211_valid_channel_type(struct genl_info *info,
1353 enum nl80211_channel_type *channel_type)
1354{
1355 enum nl80211_channel_type tmp;
1356
1357 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1358 return false;
1359
1360 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1361 if (tmp != NL80211_CHAN_NO_HT &&
1362 tmp != NL80211_CHAN_HT20 &&
1363 tmp != NL80211_CHAN_HT40PLUS &&
1364 tmp != NL80211_CHAN_HT40MINUS)
1365 return false;
1366
1367 if (channel_type)
1368 *channel_type = tmp;
1369
1370 return true;
1371}
1372
f444de05
JB		 1373static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1374 struct wireless_dev *wdev,
1375 struct genl_info *info)
1376{
aa430da4 1377 struct ieee80211_channel *channel;
f444de05
JB		 1378 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1379 u32 freq;
1380 int result;
e8c9bd5b
JB		 1381 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1382
1383 if (wdev)
1384 iftype = wdev->iftype;
f444de05
JB		 1385
1386 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1387 return -EINVAL;
1388
1389 if (!nl80211_can_set_dev_channel(wdev))
1390 return -EOPNOTSUPP;
1391
cd6c6598
JB		 1392 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1393 !nl80211_valid_channel_type(info, &channel_type))
1394 return -EINVAL;
f444de05
JB		 1395
1396 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1397
1398 mutex_lock(&rdev->devlist_mtx);
e8c9bd5b 1399 switch (iftype) {
aa430da4
JB		 1400 case NL80211_IFTYPE_AP:
1401 case NL80211_IFTYPE_P2P_GO:
1402 if (wdev->beacon_interval) {
1403 result = -EBUSY;
1404 break;
1405 }
1406 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1407 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1408 channel,
1409 channel_type)) {
1410 result = -EINVAL;
1411 break;
1412 }
1413 wdev->preset_chan = channel;
1414 wdev->preset_chantype = channel_type;
1415 result = 0;
1416 break;
cc1d2806
JB		 1417 case NL80211_IFTYPE_MESH_POINT:
1418 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1419 break;
e8c9bd5b
JB		 1420 case NL80211_IFTYPE_MONITOR:
1421 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1422 break;
aa430da4 1423 default:
e8c9bd5b 1424 result = -EINVAL;
f444de05
JB		 1425 }
1426 mutex_unlock(&rdev->devlist_mtx);
1427
1428 return result;
1429}
1430
1431static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1432{
4c476991
JB		 1433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1434 struct net_device *netdev = info->user_ptr[1];
f444de05 1435
4c476991 1436 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1437}
1438
e8347eba
BJ		 1439static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1440{
43b19952
JB		 1441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1442 struct net_device *dev = info->user_ptr[1];
1443 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1444 const u8 *bssid;
e8347eba
BJ		 1445
1446 if (!info->attrs[NL80211_ATTR_MAC])
1447 return -EINVAL;
1448
43b19952
JB		 1449 if (netif_running(dev))
1450 return -EBUSY;
e8347eba 1451
43b19952
JB		 1452 if (!rdev->ops->set_wds_peer)
1453 return -EOPNOTSUPP;
e8347eba 1454
43b19952
JB		 1455 if (wdev->iftype != NL80211_IFTYPE_WDS)
1456 return -EOPNOTSUPP;
e8347eba
BJ		 1457
1458 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1459 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1460}
1461
1462
55682965
JB		 1463static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1464{
1465 struct cfg80211_registered_device *rdev;
f444de05
JB		 1466 struct net_device *netdev = NULL;
1467 struct wireless_dev *wdev;
a1e567c8 1468 int result = 0, rem_txq_params = 0;
31888487 1469 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1470 u32 changed;
1471 u8 retry_short = 0, retry_long = 0;
1472 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1473 u8 coverage_class = 0;
55682965 1474
f444de05
JB		 1475 /*
1476 * Try to find the wiphy and netdev. Normally this
1477 * function shouldn't need the netdev, but this is
1478 * done for backward compatibility -- previously
1479 * setting the channel was done per wiphy, but now
1480 * it is per netdev. Previous userland like hostapd
1481 * also passed a netdev to set_wiphy, so that it is
1482 * possible to let that go to the right netdev!
1483 */
4bbf4d56
JB		 1484 mutex_lock(&cfg80211_mutex);
1485
f444de05
JB		 1486 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1487 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1488
1489 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1490 if (netdev && netdev->ieee80211_ptr) {
1491 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1492 mutex_lock(&rdev->mtx);
1493 } else
1494 netdev = NULL;
4bbf4d56
JB		 1495 }
1496
f444de05 1497 if (!netdev) {
878d9ec7
JB		 1498 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1499 info->attrs);
f444de05
JB		 1500 if (IS_ERR(rdev)) {
1501 mutex_unlock(&cfg80211_mutex);
4c476991 1502 return PTR_ERR(rdev);
f444de05
JB		 1503 }
1504 wdev = NULL;
1505 netdev = NULL;
1506 result = 0;
1507
1508 mutex_lock(&rdev->mtx);
cc1d2806 1509 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
f444de05
JB		 1510 wdev = netdev->ieee80211_ptr;
1511 else
1512 wdev = NULL;
1513
1514 /*
1515 * end workaround code, by now the rdev is available
1516 * and locked, and wdev may or may not be NULL.
1517 */
4bbf4d56
JB		 1518
1519 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1520 result = cfg80211_dev_rename(
1521 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1522
1523 mutex_unlock(&cfg80211_mutex);
1524
1525 if (result)
1526 goto bad_res;
31888487
JM		 1527
1528 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1529 struct ieee80211_txq_params txq_params;
1530 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1531
1532 if (!rdev->ops->set_txq_params) {
1533 result = -EOPNOTSUPP;
1534 goto bad_res;
1535 }
1536
f70f01c2
EP		 1537 if (!netdev) {
1538 result = -EINVAL;
1539 goto bad_res;
1540 }
1541
133a3ff2
JB		 1542 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1543 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1544 result = -EINVAL;
1545 goto bad_res;
1546 }
1547
2b5f8b0b
JB		 1548 if (!netif_running(netdev)) {
1549 result = -ENETDOWN;
1550 goto bad_res;
1551 }
1552
31888487
JM		 1553 nla_for_each_nested(nl_txq_params,
1554 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1555 rem_txq_params) {
1556 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1557 nla_data(nl_txq_params),
1558 nla_len(nl_txq_params),
1559 txq_params_policy);
1560 result = parse_txq_params(tb, &txq_params);
1561 if (result)
1562 goto bad_res;
1563
1564 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1565 netdev,
31888487
JM		 1566 &txq_params);
1567 if (result)
1568 goto bad_res;
1569 }
1570 }
55682965 1571
72bdcf34 1572 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1573 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1574 if (result)
1575 goto bad_res;
1576 }
1577
98d2ff8b
JO		 1578 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1579 enum nl80211_tx_power_setting type;
1580 int idx, mbm = 0;
1581
1582 if (!rdev->ops->set_tx_power) {
60ea385f 1583 result = -EOPNOTSUPP;
98d2ff8b
JO		 1584 goto bad_res;
1585 }
1586
1587 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1588 type = nla_get_u32(info->attrs[idx]);
1589
1590 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1591 (type != NL80211_TX_POWER_AUTOMATIC)) {
1592 result = -EINVAL;
1593 goto bad_res;
1594 }
1595
1596 if (type != NL80211_TX_POWER_AUTOMATIC) {
1597 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1598 mbm = nla_get_u32(info->attrs[idx]);
1599 }
1600
1601 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1602 if (result)
1603 goto bad_res;
1604 }
1605
afe0cbf8
BR		 1606 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1607 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1608 u32 tx_ant, rx_ant;
7f531e03
BR		 1609 if ((!rdev->wiphy.available_antennas_tx &&
1610 !rdev->wiphy.available_antennas_rx) ||
1611 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1612 result = -EOPNOTSUPP;
1613 goto bad_res;
1614 }
1615
1616 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1617 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1618
a7ffac95 1619 /* reject antenna configurations which don't match the
7f531e03
BR		 1620 * available antenna masks, except for the "all" mask */
1621 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1622 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1623 result = -EINVAL;
1624 goto bad_res;
1625 }
1626
7f531e03
BR		 1627 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1628 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1629
afe0cbf8
BR		 1630 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1631 if (result)
1632 goto bad_res;
1633 }
1634
b9a5f8ca
JM		 1635 changed = 0;
1636
1637 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1638 retry_short = nla_get_u8(
1639 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1640 if (retry_short == 0) {
1641 result = -EINVAL;
1642 goto bad_res;
1643 }
1644 changed |= WIPHY_PARAM_RETRY_SHORT;
1645 }
1646
1647 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1648 retry_long = nla_get_u8(
1649 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1650 if (retry_long == 0) {
1651 result = -EINVAL;
1652 goto bad_res;
1653 }
1654 changed |= WIPHY_PARAM_RETRY_LONG;
1655 }
1656
1657 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1658 frag_threshold = nla_get_u32(
1659 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1660 if (frag_threshold < 256) {
1661 result = -EINVAL;
1662 goto bad_res;
1663 }
1664 if (frag_threshold != (u32) -1) {
1665 /*
1666 * Fragments (apart from the last one) are required to
1667 * have even length. Make the fragmentation code
1668 * simpler by stripping LSB should someone try to use
1669 * odd threshold value.
1670 */
1671 frag_threshold &= ~0x1;
1672 }
1673 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1674 }
1675
1676 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1677 rts_threshold = nla_get_u32(
1678 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1679 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1680 }
1681
81077e82
LT		 1682 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1683 coverage_class = nla_get_u8(
1684 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1685 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1686 }
1687
b9a5f8ca
JM		 1688 if (changed) {
1689 u8 old_retry_short, old_retry_long;
1690 u32 old_frag_threshold, old_rts_threshold;
81077e82 1691 u8 old_coverage_class;
b9a5f8ca
JM		 1692
1693 if (!rdev->ops->set_wiphy_params) {
1694 result = -EOPNOTSUPP;
1695 goto bad_res;
1696 }
1697
1698 old_retry_short = rdev->wiphy.retry_short;
1699 old_retry_long = rdev->wiphy.retry_long;
1700 old_frag_threshold = rdev->wiphy.frag_threshold;
1701 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1702 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1703
1704 if (changed & WIPHY_PARAM_RETRY_SHORT)
1705 rdev->wiphy.retry_short = retry_short;
1706 if (changed & WIPHY_PARAM_RETRY_LONG)
1707 rdev->wiphy.retry_long = retry_long;
1708 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1709 rdev->wiphy.frag_threshold = frag_threshold;
1710 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1711 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1712 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1713 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1714
1715 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1716 if (result) {
1717 rdev->wiphy.retry_short = old_retry_short;
1718 rdev->wiphy.retry_long = old_retry_long;
1719 rdev->wiphy.frag_threshold = old_frag_threshold;
1720 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1721 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1722 }
1723 }
72bdcf34 1724
306d6112 1725 bad_res:
4bbf4d56 1726 mutex_unlock(&rdev->mtx);
f444de05
JB		 1727 if (netdev)
1728 dev_put(netdev);
55682965
JB		 1729 return result;
1730}
1731
71bbc994
JB		 1732static inline u64 wdev_id(struct wireless_dev *wdev)
1733{
1734 return (u64)wdev->identifier |
1735 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1736}
55682965
JB		 1737
1738static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1739 struct cfg80211_registered_device *rdev,
72fb2abc 1740 struct wireless_dev *wdev)
55682965 1741{
72fb2abc 1742 struct net_device *dev = wdev->netdev;
55682965
JB		 1743 void *hdr;
1744
1745 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1746 if (!hdr)
1747 return -1;
1748
72fb2abc
JB		 1749 if (dev &&
1750 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1751 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1752 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dev->dev_addr)))
1753 goto nla_put_failure;
1754
1755 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1756 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
71bbc994 1757 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 1758 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1759 rdev->devlist_generation ^
1760 (cfg80211_rdev_list_generation << 2)))
1761 goto nla_put_failure;
f5ea9120 1762
5b7ccaf3
JB		 1763 if (rdev->ops->get_channel) {
1764 struct ieee80211_channel *chan;
1765 enum nl80211_channel_type channel_type;
1766
1767 chan = rdev->ops->get_channel(&rdev->wiphy, wdev,
1768 &channel_type);
1769 if (chan &&
1770 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1771 chan->center_freq) ||
1772 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1773 channel_type)))
59ef43e6 1774 goto nla_put_failure;
d91df0e3
PF		 1775 }
1776
55682965
JB		 1777 return genlmsg_end(msg, hdr);
1778
1779 nla_put_failure:
bc3ed28c
TG		 1780 genlmsg_cancel(msg, hdr);
1781 return -EMSGSIZE;
55682965
JB		 1782}
1783
1784static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1785{
1786 int wp_idx = 0;
1787 int if_idx = 0;
1788 int wp_start = cb->args[0];
1789 int if_start = cb->args[1];
f5ea9120 1790 struct cfg80211_registered_device *rdev;
55682965
JB		 1791 struct wireless_dev *wdev;
1792
a1794390 1793 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1794 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1795 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1796 continue;
bba95fef
JB		 1797 if (wp_idx < wp_start) {
1798 wp_idx++;
55682965 1799 continue;
bba95fef 1800 }
55682965
JB		 1801 if_idx = 0;
1802
f5ea9120 1803 mutex_lock(&rdev->devlist_mtx);
89a54e48 1804 list_for_each_entry(wdev, &rdev->wdev_list, list) {
bba95fef
JB		 1805 if (if_idx < if_start) {
1806 if_idx++;
55682965 1807 continue;
bba95fef 1808 }
55682965
JB		 1809 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1810 cb->nlh->nlmsg_seq, NLM_F_MULTI,
72fb2abc 1811 rdev, wdev) < 0) {
f5ea9120 1812 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1813 goto out;
1814 }
1815 if_idx++;
55682965 1816 }
f5ea9120 1817 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1818
1819 wp_idx++;
55682965 1820 }
bba95fef 1821 out:
a1794390 1822 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1823
1824 cb->args[0] = wp_idx;
1825 cb->args[1] = if_idx;
1826
1827 return skb->len;
1828}
1829
1830static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1831{
1832 struct sk_buff *msg;
4c476991 1833 struct cfg80211_registered_device *dev = info->user_ptr[0];
72fb2abc 1834 struct wireless_dev *wdev = info->user_ptr[1];
55682965 1835
fd2120ca 1836 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1837 if (!msg)
4c476991 1838 return -ENOMEM;
55682965 1839
d726405a 1840 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
72fb2abc 1841 dev, wdev) < 0) {
4c476991
JB		 1842 nlmsg_free(msg);
1843 return -ENOBUFS;
1844 }
55682965 1845
134e6375 1846 return genlmsg_reply(msg, info);
55682965
JB		 1847}
1848
66f7ac50
MW		 1849static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1850 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1851 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1852 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1853 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1854 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1855};
1856
1857static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1858{
1859 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1860 int flag;
1861
1862 *mntrflags = 0;
1863
1864 if (!nla)
1865 return -EINVAL;
1866
1867 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1868 nla, mntr_flags_policy))
1869 return -EINVAL;
1870
1871 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1872 if (flags[flag])
1873 *mntrflags |= (1<<flag);
1874
1875 return 0;
1876}
1877
9bc383de 1878static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1879 struct net_device *netdev, u8 use_4addr,
1880 enum nl80211_iftype iftype)
9bc383de 1881{
ad4bb6f8 1882 if (!use_4addr) {
f350a0a8 1883 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1884 return -EBUSY;
9bc383de 1885 return 0;
ad4bb6f8 1886 }
9bc383de
JB		 1887
1888 switch (iftype) {
1889 case NL80211_IFTYPE_AP_VLAN:
1890 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1891 return 0;
1892 break;
1893 case NL80211_IFTYPE_STATION:
1894 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1895 return 0;
1896 break;
1897 default:
1898 break;
1899 }
1900
1901 return -EOPNOTSUPP;
1902}
1903
55682965
JB		 1904static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1905{
4c476991 1906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1907 struct vif_params params;
e36d56b6 1908 int err;
04a773ad 1909 enum nl80211_iftype otype, ntype;
4c476991 1910 struct net_device *dev = info->user_ptr[1];
92ffe055 1911 u32 _flags, *flags = NULL;
ac7f9cfa 1912 bool change = false;
55682965 1913
2ec600d6
LCC		 1914 memset(&params, 0, sizeof(params));
1915
04a773ad 1916 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1917
723b038d 1918 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1919 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1920 if (otype != ntype)
ac7f9cfa 1921 change = true;
4c476991
JB		 1922 if (ntype > NL80211_IFTYPE_MAX)
1923 return -EINVAL;
723b038d
JB		 1924 }
1925
92ffe055 1926 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1927 struct wireless_dev *wdev = dev->ieee80211_ptr;
1928
4c476991
JB		 1929 if (ntype != NL80211_IFTYPE_MESH_POINT)
1930 return -EINVAL;
29cbe68c
JB		 1931 if (netif_running(dev))
1932 return -EBUSY;
1933
1934 wdev_lock(wdev);
1935 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1936 IEEE80211_MAX_MESH_ID_LEN);
1937 wdev->mesh_id_up_len =
1938 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1939 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1940 wdev->mesh_id_up_len);
1941 wdev_unlock(wdev);
2ec600d6
LCC		 1942 }
1943
8b787643
FF		 1944 if (info->attrs[NL80211_ATTR_4ADDR]) {
1945 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1946 change = true;
ad4bb6f8 1947 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1948 if (err)
4c476991 1949 return err;
8b787643
FF		 1950 } else {
1951 params.use_4addr = -1;
1952 }
1953
92ffe055 1954 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1955 if (ntype != NL80211_IFTYPE_MONITOR)
1956 return -EINVAL;
92ffe055
JB		 1957 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1958 &_flags);
ac7f9cfa 1959 if (err)
4c476991 1960 return err;
ac7f9cfa
JB		 1961
1962 flags = &_flags;
1963 change = true;
92ffe055 1964 }
3b85875a 1965
ac7f9cfa 1966 if (change)
3d54d255 1967 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1968 else
1969 err = 0;
60719ffd 1970
9bc383de
JB		 1971 if (!err && params.use_4addr != -1)
1972 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1973
55682965
JB		 1974 return err;
1975}
1976
1977static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1978{
4c476991 1979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1980 struct vif_params params;
84efbb84 1981 struct wireless_dev *wdev;
1c90f9d4 1982 struct sk_buff *msg;
55682965
JB		 1983 int err;
1984 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1985 u32 flags;
55682965 1986
2ec600d6
LCC		 1987 memset(&params, 0, sizeof(params));
1988
55682965
JB		 1989 if (!info->attrs[NL80211_ATTR_IFNAME])
1990 return -EINVAL;
1991
1992 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1993 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1994 if (type > NL80211_IFTYPE_MAX)
1995 return -EINVAL;
1996 }
1997
79c97e97 1998 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1999 !(rdev->wiphy.interface_modes & (1 << type)))
2000 return -EOPNOTSUPP;
55682965 2001
9bc383de 2002 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 2003 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 2004 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 2005 if (err)
4c476991 2006 return err;
9bc383de 2007 }
8b787643 2008
1c90f9d4
JB		 2009 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2010 if (!msg)
2011 return -ENOMEM;
2012
66f7ac50
MW		 2013 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2014 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2015 &flags);
84efbb84 2016 wdev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 2017 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 2018 type, err ? NULL : &flags, &params);
1c90f9d4
JB		 2019 if (IS_ERR(wdev)) {
2020 nlmsg_free(msg);
84efbb84 2021 return PTR_ERR(wdev);
1c90f9d4 2022 }
2ec600d6 2023
29cbe68c
JB		 2024 if (type == NL80211_IFTYPE_MESH_POINT &&
2025 info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 2026 wdev_lock(wdev);
2027 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2028 IEEE80211_MAX_MESH_ID_LEN);
2029 wdev->mesh_id_up_len =
2030 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2031 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2032 wdev->mesh_id_up_len);
2033 wdev_unlock(wdev);
2034 }
2035
1c90f9d4
JB		 2036 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
2037 rdev, wdev) < 0) {
2038 nlmsg_free(msg);
2039 return -ENOBUFS;
2040 }
2041
2042 return genlmsg_reply(msg, info);
55682965
JB		 2043}
2044
2045static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2046{
4c476991 2047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
84efbb84 2048 struct wireless_dev *wdev = info->user_ptr[1];
55682965 2049
4c476991
JB		 2050 if (!rdev->ops->del_virtual_intf)
2051 return -EOPNOTSUPP;
55682965 2052
84efbb84
JB		 2053 /*
2054 * If we remove a wireless device without a netdev then clear
2055 * user_ptr[1] so that nl80211_post_doit won't dereference it
2056 * to check if it needs to do dev_put(). Otherwise it crashes
2057 * since the wdev has been freed, unlike with a netdev where
2058 * we need the dev_put() for the netdev to really be freed.
2059 */
2060 if (!wdev->netdev)
2061 info->user_ptr[1] = NULL;
2062
2063 return rdev->ops->del_virtual_intf(&rdev->wiphy, wdev);
55682965
JB		 2064}
2065
1d9d9213
SW		 2066static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2067{
2068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2069 struct net_device *dev = info->user_ptr[1];
2070 u16 noack_map;
2071
2072 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2073 return -EINVAL;
2074
2075 if (!rdev->ops->set_noack_map)
2076 return -EOPNOTSUPP;
2077
2078 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2079
2080 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
2081}
2082
41ade00f
JB		 2083struct get_key_cookie {
2084 struct sk_buff *msg;
2085 int error;
b9454e83 2086 int idx;
41ade00f
JB		 2087};
2088
2089static void get_key_callback(void *c, struct key_params *params)
2090{
b9454e83 2091 struct nlattr *key;
41ade00f
JB		 2092 struct get_key_cookie *cookie = c;
2093
9360ffd1
DM		 2094 if ((params->key &&
2095 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2096 params->key_len, params->key)) ||
2097 (params->seq &&
2098 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2099 params->seq_len, params->seq)) ||
2100 (params->cipher &&
2101 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2102 params->cipher)))
2103 goto nla_put_failure;
41ade00f 2104
b9454e83
JB		 2105 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2106 if (!key)
2107 goto nla_put_failure;
2108
9360ffd1
DM		 2109 if ((params->key &&
2110 nla_put(cookie->msg, NL80211_KEY_DATA,
2111 params->key_len, params->key)) ||
2112 (params->seq &&
2113 nla_put(cookie->msg, NL80211_KEY_SEQ,
2114 params->seq_len, params->seq)) ||
2115 (params->cipher &&
2116 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2117 params->cipher)))
2118 goto nla_put_failure;
b9454e83 2119
9360ffd1
DM		 2120 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2121 goto nla_put_failure;
b9454e83
JB		 2122
2123 nla_nest_end(cookie->msg, key);
2124
41ade00f
JB		 2125 return;
2126 nla_put_failure:
2127 cookie->error = 1;
2128}
2129
2130static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2131{
4c476991 2132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2133 int err;
4c476991 2134 struct net_device *dev = info->user_ptr[1];
41ade00f 2135 u8 key_idx = 0;
e31b8213
JB		 2136 const u8 *mac_addr = NULL;
2137 bool pairwise;
41ade00f
JB		 2138 struct get_key_cookie cookie = {
2139 .error = 0,
2140 };
2141 void *hdr;
2142 struct sk_buff *msg;
2143
2144 if (info->attrs[NL80211_ATTR_KEY_IDX])
2145 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2146
3cfcf6ac 2147 if (key_idx > 5)
41ade00f
JB		 2148 return -EINVAL;
2149
2150 if (info->attrs[NL80211_ATTR_MAC])
2151 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2152
e31b8213
JB		 2153 pairwise = !!mac_addr;
2154 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2155 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2156 if (kt >= NUM_NL80211_KEYTYPES)
2157 return -EINVAL;
2158 if (kt != NL80211_KEYTYPE_GROUP &&
2159 kt != NL80211_KEYTYPE_PAIRWISE)
2160 return -EINVAL;
2161 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2162 }
2163
4c476991
JB		 2164 if (!rdev->ops->get_key)
2165 return -EOPNOTSUPP;
41ade00f 2166
fd2120ca 2167 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2168 if (!msg)
2169 return -ENOMEM;
41ade00f
JB		 2170
2171 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2172 NL80211_CMD_NEW_KEY);
4c476991
JB		 2173 if (IS_ERR(hdr))
2174 return PTR_ERR(hdr);
41ade00f
JB		 2175
2176 cookie.msg = msg;
b9454e83 2177 cookie.idx = key_idx;
41ade00f 2178
9360ffd1
DM		 2179 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2180 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2181 goto nla_put_failure;
2182 if (mac_addr &&
2183 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2184 goto nla_put_failure;
41ade00f 2185
e31b8213
JB		 2186 if (pairwise && mac_addr &&
2187 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2188 return -ENOENT;
2189
2190 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2191 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 2192
2193 if (err)
6c95e2a2 2194 goto free_msg;
41ade00f
JB		 2195
2196 if (cookie.error)
2197 goto nla_put_failure;
2198
2199 genlmsg_end(msg, hdr);
4c476991 2200 return genlmsg_reply(msg, info);
41ade00f
JB		 2201
2202 nla_put_failure:
2203 err = -ENOBUFS;
6c95e2a2 2204 free_msg:
41ade00f 2205 nlmsg_free(msg);
41ade00f
JB		 2206 return err;
2207}
2208
2209static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2210{
4c476991 2211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 2212 struct key_parse key;
41ade00f 2213 int err;
4c476991 2214 struct net_device *dev = info->user_ptr[1];
41ade00f 2215
b9454e83
JB		 2216 err = nl80211_parse_key(info, &key);
2217 if (err)
2218 return err;
41ade00f 2219
b9454e83 2220 if (key.idx < 0)
41ade00f
JB		 2221 return -EINVAL;
2222
b9454e83
JB		 2223 /* only support setting default key */
2224 if (!key.def && !key.defmgmt)
41ade00f
JB		 2225 return -EINVAL;
2226
dbd2fd65 2227 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 2228
dbd2fd65
JB		 2229 if (key.def) {
2230 if (!rdev->ops->set_default_key) {
2231 err = -EOPNOTSUPP;
2232 goto out;
2233 }
41ade00f 2234
dbd2fd65
JB		 2235 err = nl80211_key_allowed(dev->ieee80211_ptr);
2236 if (err)
2237 goto out;
2238
dbd2fd65
JB		 2239 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2240 key.def_uni, key.def_multi);
2241
2242 if (err)
2243 goto out;
fffd0934 2244
3d23e349 2245#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 2246 dev->ieee80211_ptr->wext.default_key = key.idx;
2247#endif
2248 } else {
2249 if (key.def_uni || !key.def_multi) {
2250 err = -EINVAL;
2251 goto out;
2252 }
2253
2254 if (!rdev->ops->set_default_mgmt_key) {
2255 err = -EOPNOTSUPP;
2256 goto out;
2257 }
2258
2259 err = nl80211_key_allowed(dev->ieee80211_ptr);
2260 if (err)
2261 goto out;
2262
2263 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2264 dev, key.idx);
2265 if (err)
2266 goto out;
2267
2268#ifdef CONFIG_CFG80211_WEXT
2269 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 2270#endif
dbd2fd65
JB		 2271 }
2272
2273 out:
fffd0934 2274 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2275
41ade00f
JB		 2276 return err;
2277}
2278
2279static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2280{
4c476991 2281 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 2282 int err;
4c476991 2283 struct net_device *dev = info->user_ptr[1];
b9454e83 2284 struct key_parse key;
e31b8213 2285 const u8 *mac_addr = NULL;
41ade00f 2286
b9454e83
JB		 2287 err = nl80211_parse_key(info, &key);
2288 if (err)
2289 return err;
41ade00f 2290
b9454e83 2291 if (!key.p.key)
41ade00f
JB		 2292 return -EINVAL;
2293
41ade00f
JB		 2294 if (info->attrs[NL80211_ATTR_MAC])
2295 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2296
e31b8213
JB		 2297 if (key.type == -1) {
2298 if (mac_addr)
2299 key.type = NL80211_KEYTYPE_PAIRWISE;
2300 else
2301 key.type = NL80211_KEYTYPE_GROUP;
2302 }
2303
2304 /* for now */
2305 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2306 key.type != NL80211_KEYTYPE_GROUP)
2307 return -EINVAL;
2308
4c476991
JB		 2309 if (!rdev->ops->add_key)
2310 return -EOPNOTSUPP;
25e47c18 2311
e31b8213
JB		 2312 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2313 key.type == NL80211_KEYTYPE_PAIRWISE,
2314 mac_addr))
4c476991 2315 return -EINVAL;
41ade00f 2316
fffd0934
JB		 2317 wdev_lock(dev->ieee80211_ptr);
2318 err = nl80211_key_allowed(dev->ieee80211_ptr);
2319 if (!err)
2320 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2321 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2322 mac_addr, &key.p);
2323 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2324
41ade00f
JB		 2325 return err;
2326}
2327
2328static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2329{
4c476991 2330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2331 int err;
4c476991 2332 struct net_device *dev = info->user_ptr[1];
41ade00f 2333 u8 *mac_addr = NULL;
b9454e83 2334 struct key_parse key;
41ade00f 2335
b9454e83
JB		 2336 err = nl80211_parse_key(info, &key);
2337 if (err)
2338 return err;
41ade00f
JB		 2339
2340 if (info->attrs[NL80211_ATTR_MAC])
2341 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2342
e31b8213
JB		 2343 if (key.type == -1) {
2344 if (mac_addr)
2345 key.type = NL80211_KEYTYPE_PAIRWISE;
2346 else
2347 key.type = NL80211_KEYTYPE_GROUP;
2348 }
2349
2350 /* for now */
2351 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2352 key.type != NL80211_KEYTYPE_GROUP)
2353 return -EINVAL;
2354
4c476991
JB		 2355 if (!rdev->ops->del_key)
2356 return -EOPNOTSUPP;
41ade00f 2357
fffd0934
JB		 2358 wdev_lock(dev->ieee80211_ptr);
2359 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2360
2361 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2362 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2363 err = -ENOENT;
2364
fffd0934 2365 if (!err)
e31b8213
JB		 2366 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2367 key.type == NL80211_KEYTYPE_PAIRWISE,
2368 mac_addr);
41ade00f 2369
3d23e349 2370#ifdef CONFIG_CFG80211_WEXT
08645126 2371 if (!err) {
b9454e83 2372 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2373 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2374 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2375 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2376 }
2377#endif
fffd0934 2378 wdev_unlock(dev->ieee80211_ptr);
08645126 2379
41ade00f
JB		 2380 return err;
2381}
2382
8860020e
JB		 2383static int nl80211_parse_beacon(struct genl_info *info,
2384 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2385{
8860020e 2386 bool haveinfo = false;
ed1b6cc7 2387
9946ecfb
JM		 2388 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2389 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2390 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2391 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2392 return -EINVAL;
2393
8860020e 2394 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2395
ed1b6cc7 2396 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2397 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2398 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2399 if (!bcn->head_len)
2400 return -EINVAL;
2401 haveinfo = true;
ed1b6cc7
JB		 2402 }
2403
2404 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2405 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2406 bcn->tail_len =
ed1b6cc7 2407 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2408 haveinfo = true;
ed1b6cc7
JB		 2409 }
2410
4c476991
JB		 2411 if (!haveinfo)
2412 return -EINVAL;
3b85875a 2413
9946ecfb 2414 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2415 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2416 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2417 }
2418
2419 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2420 bcn->proberesp_ies =
9946ecfb 2421 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2422 bcn->proberesp_ies_len =
9946ecfb
JM		 2423 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2424 }
2425
2426 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2427 bcn->assocresp_ies =
9946ecfb 2428 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2429 bcn->assocresp_ies_len =
9946ecfb
JM		 2430 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2431 }
2432
00f740e1 2433 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2434 bcn->probe_resp =
00f740e1 2435 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2436 bcn->probe_resp_len =
00f740e1
AN		 2437 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2438 }
2439
8860020e
JB		 2440 return 0;
2441}
2442
46c1dd0c
FF		 2443static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2444 struct cfg80211_ap_settings *params)
2445{
2446 struct wireless_dev *wdev;
2447 bool ret = false;
2448
2449 mutex_lock(&rdev->devlist_mtx);
2450
89a54e48 2451 list_for_each_entry(wdev, &rdev->wdev_list, list) {
46c1dd0c
FF		 2452 if (wdev->iftype != NL80211_IFTYPE_AP &&
2453 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2454 continue;
2455
2456 if (!wdev->preset_chan)
2457 continue;
2458
2459 params->channel = wdev->preset_chan;
2460 params->channel_type = wdev->preset_chantype;
2461 ret = true;
2462 break;
2463 }
2464
2465 mutex_unlock(&rdev->devlist_mtx);
2466
2467 return ret;
2468}
2469
8860020e
JB		 2470static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2471{
2472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2473 struct net_device *dev = info->user_ptr[1];
2474 struct wireless_dev *wdev = dev->ieee80211_ptr;
2475 struct cfg80211_ap_settings params;
2476 int err;
2477
2478 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2479 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2480 return -EOPNOTSUPP;
2481
2482 if (!rdev->ops->start_ap)
2483 return -EOPNOTSUPP;
2484
2485 if (wdev->beacon_interval)
2486 return -EALREADY;
2487
2488 memset(&params, 0, sizeof(params));
2489
2490 /* these are required for START_AP */
2491 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2492 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2493 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2494 return -EINVAL;
2495
2496 err = nl80211_parse_beacon(info, &params.beacon);
2497 if (err)
2498 return err;
2499
2500 params.beacon_interval =
2501 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2502 params.dtim_period =
2503 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2504
2505 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2506 if (err)
2507 return err;
2508
2509 /*
2510 * In theory, some of these attributes should be required here
2511 * but since they were not used when the command was originally
2512 * added, keep them optional for old user space programs to let
2513 * them continue to work with drivers that do not need the
2514 * additional information -- drivers must check!
2515 */
2516 if (info->attrs[NL80211_ATTR_SSID]) {
2517 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2518 params.ssid_len =
2519 nla_len(info->attrs[NL80211_ATTR_SSID]);
2520 if (params.ssid_len == 0 ||
2521 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2522 return -EINVAL;
2523 }
2524
2525 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2526 params.hidden_ssid = nla_get_u32(
2527 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2528 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2529 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2530 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2531 return -EINVAL;
2532 }
2533
2534 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2535
2536 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2537 params.auth_type = nla_get_u32(
2538 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2539 if (!nl80211_valid_auth_type(params.auth_type))
2540 return -EINVAL;
2541 } else
2542 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2543
2544 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2545 NL80211_MAX_NR_CIPHER_SUITES);
2546 if (err)
2547 return err;
2548
1b658f11
VT		 2549 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2550 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2551 return -EOPNOTSUPP;
2552 params.inactivity_timeout = nla_get_u16(
2553 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2554 }
2555
aa430da4
JB		 2556 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2557 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2558
2559 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2560 !nl80211_valid_channel_type(info, &channel_type))
2561 return -EINVAL;
2562
2563 params.channel = rdev_freq_to_chan(rdev,
2564 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2565 channel_type);
2566 if (!params.channel)
2567 return -EINVAL;
2568 params.channel_type = channel_type;
2569 } else if (wdev->preset_chan) {
2570 params.channel = wdev->preset_chan;
2571 params.channel_type = wdev->preset_chantype;
46c1dd0c 2572 } else if (!nl80211_get_ap_channel(rdev, &params))
aa430da4
JB		 2573 return -EINVAL;
2574
2575 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2576 params.channel_type))
2577 return -EINVAL;
2578
e4e32459
MK		 2579 mutex_lock(&rdev->devlist_mtx);
2580 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2581 CHAN_MODE_SHARED);
2582 mutex_unlock(&rdev->devlist_mtx);
2583
2584 if (err)
2585 return err;
2586
8860020e 2587 err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
46c1dd0c
FF		 2588 if (!err) {
2589 wdev->preset_chan = params.channel;
2590 wdev->preset_chantype = params.channel_type;
8860020e 2591 wdev->beacon_interval = params.beacon_interval;
f4489ebe 2592 wdev->channel = params.channel;
46c1dd0c 2593 }
56d1893d 2594 return err;
ed1b6cc7
JB		 2595}
2596
8860020e
JB		 2597static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2598{
2599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2600 struct net_device *dev = info->user_ptr[1];
2601 struct wireless_dev *wdev = dev->ieee80211_ptr;
2602 struct cfg80211_beacon_data params;
2603 int err;
2604
2605 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2606 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2607 return -EOPNOTSUPP;
2608
2609 if (!rdev->ops->change_beacon)
2610 return -EOPNOTSUPP;
2611
2612 if (!wdev->beacon_interval)
2613 return -EINVAL;
2614
2615 err = nl80211_parse_beacon(info, &params);
2616 if (err)
2617 return err;
2618
2619 return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
2620}
2621
2622static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2623{
4c476991
JB		 2624 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2625 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 2626
60771780 2627 return cfg80211_stop_ap(rdev, dev);
ed1b6cc7
JB		 2628}
2629
5727ef1b
JB		 2630static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2631 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2632 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2633 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2634 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2635 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2636 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2637};
2638
eccb8e8f 2639static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2640 enum nl80211_iftype iftype,
eccb8e8f 2641 struct station_parameters *params)
5727ef1b
JB		 2642{
2643 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2644 struct nlattr *nla;
5727ef1b
JB		 2645 int flag;
2646
eccb8e8f
JB		 2647 /*
2648 * Try parsing the new attribute first so userspace
2649 * can specify both for older kernels.
2650 */
2651 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2652 if (nla) {
2653 struct nl80211_sta_flag_update *sta_flags;
2654
2655 sta_flags = nla_data(nla);
2656 params->sta_flags_mask = sta_flags->mask;
2657 params->sta_flags_set = sta_flags->set;
2658 if ((params->sta_flags_mask |
2659 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2660 return -EINVAL;
2661 return 0;
2662 }
2663
2664 /* if present, parse the old attribute */
5727ef1b 2665
eccb8e8f 2666 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2667 if (!nla)
2668 return 0;
2669
2670 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2671 nla, sta_flags_policy))
2672 return -EINVAL;
2673
bdd3ae3d
JB		 2674 /*
2675 * Only allow certain flags for interface types so that
2676 * other attributes are silently ignored. Remember that
2677 * this is backward compatibility code with old userspace
2678 * and shouldn't be hit in other cases anyway.
2679 */
2680 switch (iftype) {
2681 case NL80211_IFTYPE_AP:
2682 case NL80211_IFTYPE_AP_VLAN:
2683 case NL80211_IFTYPE_P2P_GO:
2684 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2685 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2686 BIT(NL80211_STA_FLAG_WME) |
2687 BIT(NL80211_STA_FLAG_MFP);
2688 break;
2689 case NL80211_IFTYPE_P2P_CLIENT:
2690 case NL80211_IFTYPE_STATION:
2691 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2692 BIT(NL80211_STA_FLAG_TDLS_PEER);
2693 break;
2694 case NL80211_IFTYPE_MESH_POINT:
2695 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2696 BIT(NL80211_STA_FLAG_MFP) |
2697 BIT(NL80211_STA_FLAG_AUTHORIZED);
2698 default:
2699 return -EINVAL;
2700 }
5727ef1b 2701
3383b5a6
JB		 2702 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2703 if (flags[flag]) {
eccb8e8f 2704 params->sta_flags_set |= (1<<flag);
5727ef1b 2705
3383b5a6
JB		 2706 /* no longer support new API additions in old API */
2707 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2708 return -EINVAL;
2709 }
2710 }
2711
5727ef1b
JB		 2712 return 0;
2713}
2714
c8dcfd8a
FF		 2715static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2716 int attr)
2717{
2718 struct nlattr *rate;
8eb41c8d
VK		 2719 u32 bitrate;
2720 u16 bitrate_compat;
c8dcfd8a
FF		 2721
2722 rate = nla_nest_start(msg, attr);
2723 if (!rate)
2724 goto nla_put_failure;
2725
2726 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2727 bitrate = cfg80211_calculate_bitrate(info);
8eb41c8d
VK		 2728 /* report 16-bit bitrate only if we can */
2729 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
9360ffd1 2730 if ((bitrate > 0 &&
8eb41c8d
VK		 2731 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
2732 (bitrate_compat > 0 &&
2733 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
9360ffd1
DM		 2734 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2735 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2736 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2737 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2738 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2739 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2740 goto nla_put_failure;
c8dcfd8a
FF		 2741
2742 nla_nest_end(msg, rate);
2743 return true;
2744
2745nla_put_failure:
2746 return false;
2747}
2748
fd5b74dc 2749static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
66266b3a
JL		 2750 int flags,
2751 struct cfg80211_registered_device *rdev,
2752 struct net_device *dev,
98b62183 2753 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2754{
2755 void *hdr;
f4263c98 2756 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2757
2758 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2759 if (!hdr)
2760 return -1;
2761
9360ffd1
DM		 2762 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2763 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2764 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2765 goto nla_put_failure;
f5ea9120 2766
2ec600d6
LCC		 2767 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2768 if (!sinfoattr)
fd5b74dc 2769 goto nla_put_failure;
9360ffd1
DM		 2770 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2771 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2772 sinfo->connected_time))
2773 goto nla_put_failure;
2774 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2775 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2776 sinfo->inactive_time))
2777 goto nla_put_failure;
2778 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2779 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2780 sinfo->rx_bytes))
2781 goto nla_put_failure;
2782 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2783 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2784 sinfo->tx_bytes))
2785 goto nla_put_failure;
2786 if ((sinfo->filled & STATION_INFO_LLID) &&
2787 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2788 goto nla_put_failure;
2789 if ((sinfo->filled & STATION_INFO_PLID) &&
2790 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2791 goto nla_put_failure;
2792 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2793 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2794 sinfo->plink_state))
2795 goto nla_put_failure;
66266b3a
JL		 2796 switch (rdev->wiphy.signal_type) {
2797 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 2798 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2799 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2800 sinfo->signal))
2801 goto nla_put_failure;
2802 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2803 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2804 sinfo->signal_avg))
2805 goto nla_put_failure;
66266b3a
JL		 2806 break;
2807 default:
2808 break;
2809 }
420e7fab 2810 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2811 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2812 NL80211_STA_INFO_TX_BITRATE))
2813 goto nla_put_failure;
2814 }
2815 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2816 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2817 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2818 goto nla_put_failure;
420e7fab 2819 }
9360ffd1
DM		 2820 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2821 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2822 sinfo->rx_packets))
2823 goto nla_put_failure;
2824 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2825 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2826 sinfo->tx_packets))
2827 goto nla_put_failure;
2828 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2829 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2830 sinfo->tx_retries))
2831 goto nla_put_failure;
2832 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2833 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2834 sinfo->tx_failed))
2835 goto nla_put_failure;
2836 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2837 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2838 sinfo->beacon_loss_count))
2839 goto nla_put_failure;
f4263c98
PS		 2840 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2841 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2842 if (!bss_param)
2843 goto nla_put_failure;
2844
9360ffd1
DM		 2845 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2846 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2847 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2848 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2849 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2850 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2851 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2852 sinfo->bss_param.dtim_period) ||
2853 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2854 sinfo->bss_param.beacon_interval))
2855 goto nla_put_failure;
f4263c98
PS		 2856
2857 nla_nest_end(msg, bss_param);
2858 }
9360ffd1
DM		 2859 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2860 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2861 sizeof(struct nl80211_sta_flag_update),
2862 &sinfo->sta_flags))
2863 goto nla_put_failure;
7eab0f64
JL		 2864 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2865 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2866 sinfo->t_offset))
2867 goto nla_put_failure;
2ec600d6 2868 nla_nest_end(msg, sinfoattr);
fd5b74dc 2869
9360ffd1
DM		 2870 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2871 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2872 sinfo->assoc_req_ies))
2873 goto nla_put_failure;
50d3dfb7 2874
fd5b74dc
JB		 2875 return genlmsg_end(msg, hdr);
2876
2877 nla_put_failure:
bc3ed28c
TG		 2878 genlmsg_cancel(msg, hdr);
2879 return -EMSGSIZE;
fd5b74dc
JB		 2880}
2881
2ec600d6 2882static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2883 struct netlink_callback *cb)
2ec600d6 2884{
2ec600d6
LCC		 2885 struct station_info sinfo;
2886 struct cfg80211_registered_device *dev;
bba95fef 2887 struct net_device *netdev;
2ec600d6 2888 u8 mac_addr[ETH_ALEN];
bba95fef 2889 int sta_idx = cb->args[1];
2ec600d6 2890 int err;
2ec600d6 2891
67748893
JB		 2892 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2893 if (err)
2894 return err;
bba95fef
JB		 2895
2896 if (!dev->ops->dump_station) {
eec60b03 2897 err = -EOPNOTSUPP;
bba95fef
JB		 2898 goto out_err;
2899 }
2900
bba95fef 2901 while (1) {
f612cedf 2902 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2903 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2904 mac_addr, &sinfo);
2905 if (err == -ENOENT)
2906 break;
2907 if (err)
3b85875a 2908 goto out_err;
bba95fef
JB		 2909
2910 if (nl80211_send_station(skb,
2911 NETLINK_CB(cb->skb).pid,
2912 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 2913 dev, netdev, mac_addr,
bba95fef
JB		 2914 &sinfo) < 0)
2915 goto out;
2916
2917 sta_idx++;
2918 }
2919
2920
2921 out:
2922 cb->args[1] = sta_idx;
2923 err = skb->len;
bba95fef 2924 out_err:
67748893 2925 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2926
2927 return err;
2ec600d6 2928}
fd5b74dc 2929
5727ef1b
JB		 2930static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2931{
4c476991
JB		 2932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2933 struct net_device *dev = info->user_ptr[1];
2ec600d6 2934 struct station_info sinfo;
fd5b74dc
JB		 2935 struct sk_buff *msg;
2936 u8 *mac_addr = NULL;
4c476991 2937 int err;
fd5b74dc 2938
2ec600d6 2939 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2940
2941 if (!info->attrs[NL80211_ATTR_MAC])
2942 return -EINVAL;
2943
2944 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2945
4c476991
JB		 2946 if (!rdev->ops->get_station)
2947 return -EOPNOTSUPP;
3b85875a 2948
4c476991 2949 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2950 if (err)
4c476991 2951 return err;
2ec600d6 2952
fd2120ca 2953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2954 if (!msg)
4c476991 2955 return -ENOMEM;
fd5b74dc
JB		 2956
2957 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
66266b3a 2958 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 2959 nlmsg_free(msg);
2960 return -ENOBUFS;
2961 }
3b85875a 2962
4c476991 2963 return genlmsg_reply(msg, info);
5727ef1b
JB		 2964}
2965
2966/*
c258d2de 2967 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2968 */
80b99899
JB		 2969static struct net_device *get_vlan(struct genl_info *info,
2970 struct cfg80211_registered_device *rdev)
5727ef1b 2971{
463d0183 2972 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2973 struct net_device *v;
2974 int ret;
2975
2976 if (!vlanattr)
2977 return NULL;
2978
2979 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2980 if (!v)
2981 return ERR_PTR(-ENODEV);
2982
2983 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2984 ret = -EINVAL;
2985 goto error;
5727ef1b 2986 }
80b99899
JB		 2987
2988 if (!netif_running(v)) {
2989 ret = -ENETDOWN;
2990 goto error;
2991 }
2992
2993 return v;
2994 error:
2995 dev_put(v);
2996 return ERR_PTR(ret);
5727ef1b
JB		 2997}
2998
2999static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3000{
4c476991 3001 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3002 int err;
4c476991 3003 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3004 struct station_parameters params;
3005 u8 *mac_addr = NULL;
3006
3007 memset(&params, 0, sizeof(params));
3008
3009 params.listen_interval = -1;
57cf8043 3010 params.plink_state = -1;
5727ef1b
JB		 3011
3012 if (info->attrs[NL80211_ATTR_STA_AID])
3013 return -EINVAL;
3014
3015 if (!info->attrs[NL80211_ATTR_MAC])
3016 return -EINVAL;
3017
3018 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3019
3020 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3021 params.supported_rates =
3022 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3023 params.supported_rates_len =
3024 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3025 }
3026
3027 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3028 params.listen_interval =
3029 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3030
36aedc90
JM		 3031 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3032 params.ht_capa =
3033 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3034
bdd90d5e
JB		 3035 if (!rdev->ops->change_station)
3036 return -EOPNOTSUPP;
3037
bdd3ae3d 3038 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3039 return -EINVAL;
3040
2ec600d6
LCC		 3041 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3042 params.plink_action =
3043 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3044
9c3990aa
JC		 3045 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3046 params.plink_state =
3047 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3048
a97f4424
JB		 3049 switch (dev->ieee80211_ptr->iftype) {
3050 case NL80211_IFTYPE_AP:
3051 case NL80211_IFTYPE_AP_VLAN:
074ac8df 3052 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 3053 /* disallow mesh-specific things */
3054 if (params.plink_action)
bdd90d5e
JB		 3055 return -EINVAL;
3056
3057 /* TDLS can't be set, ... */
3058 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3059 return -EINVAL;
3060 /*
3061 * ... but don't bother the driver with it. This works around
3062 * a hostapd/wpa_supplicant issue -- it always includes the
3063 * TLDS_PEER flag in the mask even for AP mode.
3064 */
3065 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3066
3067 /* accept only the listed bits */
3068 if (params.sta_flags_mask &
3069 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3070 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3071 BIT(NL80211_STA_FLAG_WME) |
3072 BIT(NL80211_STA_FLAG_MFP)))
3073 return -EINVAL;
3074
3075 /* must be last in here for error handling */
3076 params.vlan = get_vlan(info, rdev);
3077 if (IS_ERR(params.vlan))
3078 return PTR_ERR(params.vlan);
a97f4424 3079 break;
074ac8df 3080 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 3081 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 3082 /*
3083 * Don't allow userspace to change the TDLS_PEER flag,
3084 * but silently ignore attempts to change it since we
3085 * don't have state here to verify that it doesn't try
3086 * to change the flag.
3087 */
3088 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 3089 /* fall through */
3090 case NL80211_IFTYPE_ADHOC:
3091 /* disallow things sta doesn't support */
3092 if (params.plink_action)
3093 return -EINVAL;
3094 if (params.ht_capa)
3095 return -EINVAL;
3096 if (params.listen_interval >= 0)
3097 return -EINVAL;
bdd90d5e
JB		 3098 /* reject any changes other than AUTHORIZED */
3099 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3100 return -EINVAL;
a97f4424
JB		 3101 break;
3102 case NL80211_IFTYPE_MESH_POINT:
3103 /* disallow things mesh doesn't support */
3104 if (params.vlan)
bdd90d5e 3105 return -EINVAL;
a97f4424 3106 if (params.ht_capa)
bdd90d5e 3107 return -EINVAL;
a97f4424 3108 if (params.listen_interval >= 0)
bdd90d5e
JB		 3109 return -EINVAL;
3110 /*
3111 * No special handling for TDLS here -- the userspace
3112 * mesh code doesn't have this bug.
3113 */
b39c48fa
JC		 3114 if (params.sta_flags_mask &
3115 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 3116 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 3117 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 3118 return -EINVAL;
a97f4424
JB		 3119 break;
3120 default:
bdd90d5e 3121 return -EOPNOTSUPP;
034d655e
JB		 3122 }
3123
bdd90d5e 3124 /* be aware of params.vlan when changing code here */
5727ef1b 3125
79c97e97 3126 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3127
5727ef1b
JB		 3128 if (params.vlan)
3129 dev_put(params.vlan);
3b85875a 3130
5727ef1b
JB		 3131 return err;
3132}
3133
c75786c9
EP		 3134static struct nla_policy
3135nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3136 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3137 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3138};
3139
5727ef1b
JB		 3140static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3141{
4c476991 3142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 3143 int err;
4c476991 3144 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3145 struct station_parameters params;
3146 u8 *mac_addr = NULL;
3147
3148 memset(&params, 0, sizeof(params));
3149
3150 if (!info->attrs[NL80211_ATTR_MAC])
3151 return -EINVAL;
3152
5727ef1b
JB		 3153 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3154 return -EINVAL;
3155
3156 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3157 return -EINVAL;
3158
0e956c13
TLSC		 3159 if (!info->attrs[NL80211_ATTR_STA_AID])
3160 return -EINVAL;
3161
5727ef1b
JB		 3162 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3163 params.supported_rates =
3164 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3165 params.supported_rates_len =
3166 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3167 params.listen_interval =
3168 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 3169
0e956c13
TLSC		 3170 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3171 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3172 return -EINVAL;
51b50fbe 3173
36aedc90
JM		 3174 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3175 params.ht_capa =
3176 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 3177
96b78dff
JC		 3178 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3179 params.plink_action =
3180 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3181
bdd90d5e
JB		 3182 if (!rdev->ops->add_station)
3183 return -EOPNOTSUPP;
3184
bdd3ae3d 3185 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 3186 return -EINVAL;
3187
bdd90d5e
JB		 3188 switch (dev->ieee80211_ptr->iftype) {
3189 case NL80211_IFTYPE_AP:
3190 case NL80211_IFTYPE_AP_VLAN:
3191 case NL80211_IFTYPE_P2P_GO:
3192 /* parse WME attributes if sta is WME capable */
3193 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3194 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3195 info->attrs[NL80211_ATTR_STA_WME]) {
3196 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3197 struct nlattr *nla;
3198
3199 nla = info->attrs[NL80211_ATTR_STA_WME];
3200 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3201 nl80211_sta_wme_policy);
3202 if (err)
3203 return err;
3204
3205 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3206 params.uapsd_queues =
3207 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3208 if (params.uapsd_queues &
3209 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3210 return -EINVAL;
c75786c9 3211
bdd90d5e
JB		 3212 if (tb[NL80211_STA_WME_MAX_SP])
3213 params.max_sp =
3214 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 3215
bdd90d5e
JB		 3216 if (params.max_sp &
3217 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3218 return -EINVAL;
4319e193 3219
bdd90d5e
JB		 3220 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3221 }
3222 /* TDLS peers cannot be added */
3223 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 3224 return -EINVAL;
bdd90d5e
JB		 3225 /* but don't bother the driver with it */
3226 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 3227
bdd90d5e
JB		 3228 /* must be last in here for error handling */
3229 params.vlan = get_vlan(info, rdev);
3230 if (IS_ERR(params.vlan))
3231 return PTR_ERR(params.vlan);
3232 break;
3233 case NL80211_IFTYPE_MESH_POINT:
3234 /* TDLS peers cannot be added */
3235 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3236 return -EINVAL;
3237 break;
3238 case NL80211_IFTYPE_STATION:
3239 /* Only TDLS peers can be added */
3240 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3241 return -EINVAL;
3242 /* Can only add if TDLS ... */
3243 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3244 return -EOPNOTSUPP;
3245 /* ... with external setup is supported */
3246 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3247 return -EOPNOTSUPP;
3248 break;
3249 default:
3250 return -EOPNOTSUPP;
c75786c9
EP		 3251 }
3252
bdd90d5e 3253 /* be aware of params.vlan when changing code here */
5727ef1b 3254
79c97e97 3255 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 3256
5727ef1b
JB		 3257 if (params.vlan)
3258 dev_put(params.vlan);
5727ef1b
JB		 3259 return err;
3260}
3261
3262static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3263{
4c476991
JB		 3264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3265 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 3266 u8 *mac_addr = NULL;
3267
3268 if (info->attrs[NL80211_ATTR_MAC])
3269 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3270
e80cf853 3271 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 3272 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 3273 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 3274 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3275 return -EINVAL;
5727ef1b 3276
4c476991
JB		 3277 if (!rdev->ops->del_station)
3278 return -EOPNOTSUPP;
3b85875a 3279
4c476991 3280 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 3281}
3282
2ec600d6
LCC		 3283static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3284 int flags, struct net_device *dev,
3285 u8 *dst, u8 *next_hop,
3286 struct mpath_info *pinfo)
3287{
3288 void *hdr;
3289 struct nlattr *pinfoattr;
3290
3291 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3292 if (!hdr)
3293 return -1;
3294
9360ffd1
DM		 3295 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3296 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3297 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3298 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3299 goto nla_put_failure;
f5ea9120 3300
2ec600d6
LCC		 3301 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3302 if (!pinfoattr)
3303 goto nla_put_failure;
9360ffd1
DM		 3304 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3305 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3306 pinfo->frame_qlen))
3307 goto nla_put_failure;
3308 if (((pinfo->filled & MPATH_INFO_SN) &&
3309 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3310 ((pinfo->filled & MPATH_INFO_METRIC) &&
3311 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3312 pinfo->metric)) ||
3313 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3314 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3315 pinfo->exptime)) ||
3316 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3317 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3318 pinfo->flags)) ||
3319 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3320 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3321 pinfo->discovery_timeout)) ||
3322 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3323 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3324 pinfo->discovery_retries)))
3325 goto nla_put_failure;
2ec600d6
LCC		 3326
3327 nla_nest_end(msg, pinfoattr);
3328
3329 return genlmsg_end(msg, hdr);
3330
3331 nla_put_failure:
bc3ed28c
TG		 3332 genlmsg_cancel(msg, hdr);
3333 return -EMSGSIZE;
2ec600d6
LCC		 3334}
3335
3336static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 3337 struct netlink_callback *cb)
2ec600d6 3338{
2ec600d6
LCC		 3339 struct mpath_info pinfo;
3340 struct cfg80211_registered_device *dev;
bba95fef 3341 struct net_device *netdev;
2ec600d6
LCC		 3342 u8 dst[ETH_ALEN];
3343 u8 next_hop[ETH_ALEN];
bba95fef 3344 int path_idx = cb->args[1];
2ec600d6 3345 int err;
2ec600d6 3346
67748893
JB		 3347 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3348 if (err)
3349 return err;
bba95fef
JB		 3350
3351 if (!dev->ops->dump_mpath) {
eec60b03 3352 err = -EOPNOTSUPP;
bba95fef
JB		 3353 goto out_err;
3354 }
3355
eec60b03
JM		 3356 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3357 err = -EOPNOTSUPP;
0448b5fc 3358 goto out_err;
eec60b03
JM		 3359 }
3360
bba95fef
JB		 3361 while (1) {
3362 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3363 dst, next_hop, &pinfo);
3364 if (err == -ENOENT)
2ec600d6 3365 break;
bba95fef 3366 if (err)
3b85875a 3367 goto out_err;
2ec600d6 3368
bba95fef
JB		 3369 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3370 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3371 netdev, dst, next_hop,
3372 &pinfo) < 0)
3373 goto out;
2ec600d6 3374
bba95fef 3375 path_idx++;
2ec600d6 3376 }
2ec600d6 3377
2ec600d6 3378
bba95fef
JB		 3379 out:
3380 cb->args[1] = path_idx;
3381 err = skb->len;
bba95fef 3382 out_err:
67748893 3383 nl80211_finish_netdev_dump(dev);
bba95fef 3384 return err;
2ec600d6
LCC		 3385}
3386
3387static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3388{
4c476991 3389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3390 int err;
4c476991 3391 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3392 struct mpath_info pinfo;
3393 struct sk_buff *msg;
3394 u8 *dst = NULL;
3395 u8 next_hop[ETH_ALEN];
3396
3397 memset(&pinfo, 0, sizeof(pinfo));
3398
3399 if (!info->attrs[NL80211_ATTR_MAC])
3400 return -EINVAL;
3401
3402 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3403
4c476991
JB		 3404 if (!rdev->ops->get_mpath)
3405 return -EOPNOTSUPP;
2ec600d6 3406
4c476991
JB		 3407 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3408 return -EOPNOTSUPP;
eec60b03 3409
79c97e97 3410 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 3411 if (err)
4c476991 3412 return err;
2ec600d6 3413
fd2120ca 3414 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3415 if (!msg)
4c476991 3416 return -ENOMEM;
2ec600d6
LCC		 3417
3418 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 3419 dev, dst, next_hop, &pinfo) < 0) {
3420 nlmsg_free(msg);
3421 return -ENOBUFS;
3422 }
3b85875a 3423
4c476991 3424 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3425}
3426
3427static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3428{
4c476991
JB		 3429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3430 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3431 u8 *dst = NULL;
3432 u8 *next_hop = NULL;
3433
3434 if (!info->attrs[NL80211_ATTR_MAC])
3435 return -EINVAL;
3436
3437 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3438 return -EINVAL;
3439
3440 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3441 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3442
4c476991
JB		 3443 if (!rdev->ops->change_mpath)
3444 return -EOPNOTSUPP;
35a8efe1 3445
4c476991
JB		 3446 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3447 return -EOPNOTSUPP;
2ec600d6 3448
4c476991 3449 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3450}
4c476991 3451
2ec600d6
LCC		 3452static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3453{
4c476991
JB		 3454 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3455 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3456 u8 *dst = NULL;
3457 u8 *next_hop = NULL;
3458
3459 if (!info->attrs[NL80211_ATTR_MAC])
3460 return -EINVAL;
3461
3462 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3463 return -EINVAL;
3464
3465 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3466 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3467
4c476991
JB		 3468 if (!rdev->ops->add_mpath)
3469 return -EOPNOTSUPP;
35a8efe1 3470
4c476991
JB		 3471 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3472 return -EOPNOTSUPP;
2ec600d6 3473
4c476991 3474 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3475}
3476
3477static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3478{
4c476991
JB		 3479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3480 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3481 u8 *dst = NULL;
3482
3483 if (info->attrs[NL80211_ATTR_MAC])
3484 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3485
4c476991
JB		 3486 if (!rdev->ops->del_mpath)
3487 return -EOPNOTSUPP;
3b85875a 3488
4c476991 3489 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3490}
3491
9f1ba906
JM		 3492static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3493{
4c476991
JB		 3494 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3495 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3496 struct bss_parameters params;
3497
3498 memset(&params, 0, sizeof(params));
3499 /* default to not changing parameters */
3500 params.use_cts_prot = -1;
3501 params.use_short_preamble = -1;
3502 params.use_short_slot_time = -1;
fd8aaaf3 3503 params.ap_isolate = -1;
50b12f59 3504 params.ht_opmode = -1;
9f1ba906
JM		 3505
3506 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3507 params.use_cts_prot =
3508 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3509 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3510 params.use_short_preamble =
3511 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3512 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3513 params.use_short_slot_time =
3514 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3515 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3516 params.basic_rates =
3517 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3518 params.basic_rates_len =
3519 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3520 }
fd8aaaf3
FF		 3521 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3522 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3523 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3524 params.ht_opmode =
3525 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3526
4c476991
JB		 3527 if (!rdev->ops->change_bss)
3528 return -EOPNOTSUPP;
9f1ba906 3529
074ac8df 3530 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3531 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3532 return -EOPNOTSUPP;
3b85875a 3533
4c476991 3534 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3535}
3536
b54452b0 3537static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3538 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3539 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3540 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3541 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3542 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3543 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3544};
3545
3546static int parse_reg_rule(struct nlattr *tb[],
3547 struct ieee80211_reg_rule *reg_rule)
3548{
3549 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3550 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3551
3552 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3553 return -EINVAL;
3554 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3555 return -EINVAL;
3556 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3557 return -EINVAL;
3558 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3559 return -EINVAL;
3560 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3561 return -EINVAL;
3562
3563 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3564
3565 freq_range->start_freq_khz =
3566 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3567 freq_range->end_freq_khz =
3568 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3569 freq_range->max_bandwidth_khz =
3570 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3571
3572 power_rule->max_eirp =
3573 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3574
3575 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3576 power_rule->max_antenna_gain =
3577 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3578
3579 return 0;
3580}
3581
3582static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3583{
3584 int r;
3585 char *data = NULL;
57b5ce07 3586 enum nl80211_user_reg_hint_type user_reg_hint_type;
b2e1b302 3587
80778f18
LR		 3588 /*
3589 * You should only get this when cfg80211 hasn't yet initialized
3590 * completely when built-in to the kernel right between the time
3591 * window between nl80211_init() and regulatory_init(), if that is
3592 * even possible.
3593 */
3594 mutex_lock(&cfg80211_mutex);
3595 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3596 mutex_unlock(&cfg80211_mutex);
3597 return -EINPROGRESS;
80778f18 3598 }
fe33eb39 3599 mutex_unlock(&cfg80211_mutex);
80778f18 3600
fe33eb39
LR		 3601 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3602 return -EINVAL;
b2e1b302
LR		 3603
3604 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3605
57b5ce07
LR		 3606 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3607 user_reg_hint_type =
3608 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3609 else
3610 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3611
3612 switch (user_reg_hint_type) {
3613 case NL80211_USER_REG_HINT_USER:
3614 case NL80211_USER_REG_HINT_CELL_BASE:
3615 break;
3616 default:
3617 return -EINVAL;
3618 }
3619
3620 r = regulatory_hint_user(data, user_reg_hint_type);
fe33eb39 3621
b2e1b302
LR		 3622 return r;
3623}
3624
24bdd9f4 3625static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3626 struct genl_info *info)
93da9cc1 3627{
4c476991 3628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3629 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3630 struct wireless_dev *wdev = dev->ieee80211_ptr;
3631 struct mesh_config cur_params;
3632 int err = 0;
93da9cc1 3633 void *hdr;
3634 struct nlattr *pinfoattr;
3635 struct sk_buff *msg;
3636
29cbe68c
JB		 3637 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3638 return -EOPNOTSUPP;
3639
24bdd9f4 3640 if (!rdev->ops->get_mesh_config)
4c476991 3641 return -EOPNOTSUPP;
f3f92586 3642
29cbe68c
JB		 3643 wdev_lock(wdev);
3644 /* If not connected, get default parameters */
3645 if (!wdev->mesh_id_len)
3646 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3647 else
24bdd9f4 3648 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3649 &cur_params);
3650 wdev_unlock(wdev);
3651
93da9cc1 3652 if (err)
4c476991 3653 return err;
93da9cc1 3654
3655 /* Draw up a netlink message to send back */
fd2120ca 3656 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3657 if (!msg)
3658 return -ENOMEM;
93da9cc1 3659 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3660 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3661 if (!hdr)
efe1cf0c 3662 goto out;
24bdd9f4 3663 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3664 if (!pinfoattr)
3665 goto nla_put_failure;
9360ffd1
DM		 3666 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3667 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3668 cur_params.dot11MeshRetryTimeout) ||
3669 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3670 cur_params.dot11MeshConfirmTimeout) ||
3671 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3672 cur_params.dot11MeshHoldingTimeout) ||
3673 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3674 cur_params.dot11MeshMaxPeerLinks) ||
3675 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3676 cur_params.dot11MeshMaxRetries) ||
3677 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3678 cur_params.dot11MeshTTL) ||
3679 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3680 cur_params.element_ttl) ||
3681 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3682 cur_params.auto_open_plinks) ||
7eab0f64
JL		 3683 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3684 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
9360ffd1
DM		 3685 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3686 cur_params.dot11MeshHWMPmaxPREQretries) ||
3687 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3688 cur_params.path_refresh_time) ||
3689 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3690 cur_params.min_discovery_timeout) ||
3691 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3692 cur_params.dot11MeshHWMPactivePathTimeout) ||
3693 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3694 cur_params.dot11MeshHWMPpreqMinInterval) ||
3695 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3696 cur_params.dot11MeshHWMPperrMinInterval) ||
3697 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3698 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3699 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3700 cur_params.dot11MeshHWMPRootMode) ||
3701 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3702 cur_params.dot11MeshHWMPRannInterval) ||
3703 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3704 cur_params.dot11MeshGateAnnouncementProtocol) ||
3705 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3706 cur_params.dot11MeshForwarding) ||
3707 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
70c33eaa
AN		 3708 cur_params.rssi_threshold) ||
3709 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3710 cur_params.ht_opmode) ||
3711 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3712 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3713 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3714 cur_params.dot11MeshHWMProotInterval) ||
3715 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3716 cur_params.dot11MeshHWMPconfirmationInterval))
9360ffd1 3717 goto nla_put_failure;
93da9cc1 3718 nla_nest_end(msg, pinfoattr);
3719 genlmsg_end(msg, hdr);
4c476991 3720 return genlmsg_reply(msg, info);
93da9cc1 3721
3b85875a 3722 nla_put_failure:
93da9cc1 3723 genlmsg_cancel(msg, hdr);
efe1cf0c 3724 out:
d080e275 3725 nlmsg_free(msg);
4c476991 3726 return -ENOBUFS;
93da9cc1 3727}
3728
b54452b0 3729static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3730 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3731 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3732 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3733 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3734 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3735 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3736 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3737 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
d299a1f2 3738 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
93da9cc1 3739 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3740 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3741 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3742 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3743 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3744 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3745 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3746 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3747 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3748 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3749 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
a4f606ea
CYY		 3750 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3751 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
ac1073a6
CYY		 3752 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3753 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
728b19e5 3754 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3755};
3756
c80d545d
JC		 3757static const struct nla_policy
3758 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
d299a1f2 3759 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
c80d545d
JC		 3760 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3761 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3762 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3763 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
a4f606ea 3764 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3765 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3766};
3767
24bdd9f4 3768static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3769 struct mesh_config *cfg,
3770 u32 *mask_out)
93da9cc1 3771{
93da9cc1 3772 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3773 u32 mask = 0;
93da9cc1 3774
bd90fdcc
JB		 3775#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3776do {\
3777 if (table[attr_num]) {\
3778 cfg->param = nla_fn(table[attr_num]); \
3779 mask |= (1 << (attr_num - 1)); \
3780 } \
3781} while (0);\
3782
3783
24bdd9f4 3784 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3785 return -EINVAL;
3786 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3787 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3788 nl80211_meshconf_params_policy))
93da9cc1 3789 return -EINVAL;
3790
93da9cc1 3791 /* This makes sure that there aren't more than 32 mesh config
3792 * parameters (otherwise our bitfield scheme would not work.) */
3793 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3794
3795 /* Fill in the params struct */
93da9cc1 3796 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
a4f606ea
CYY		 3797 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3798 nla_get_u16);
93da9cc1 3799 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
a4f606ea
CYY		 3800 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3801 nla_get_u16);
93da9cc1 3802 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
a4f606ea
CYY		 3803 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3804 nla_get_u16);
93da9cc1 3805 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
a4f606ea
CYY		 3806 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3807 nla_get_u16);
93da9cc1 3808 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
a4f606ea
CYY		 3809 mask, NL80211_MESHCONF_MAX_RETRIES,
3810 nla_get_u8);
93da9cc1 3811 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
a4f606ea 3812 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21 3813 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
a4f606ea
CYY		 3814 mask, NL80211_MESHCONF_ELEMENT_TTL,
3815 nla_get_u8);
93da9cc1 3816 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
a4f606ea
CYY		 3817 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3818 nla_get_u8);
3819 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3820 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3821 nla_get_u32);
93da9cc1 3822 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
a4f606ea
CYY		 3823 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3824 nla_get_u8);
93da9cc1 3825 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
a4f606ea
CYY		 3826 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3827 nla_get_u32);
93da9cc1 3828 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
a4f606ea
CYY		 3829 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3830 nla_get_u16);
3831 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3832 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3833 nla_get_u32);
93da9cc1 3834 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
a4f606ea
CYY		 3835 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3836 nla_get_u16);
dca7e943 3837 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
a4f606ea
CYY		 3838 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3839 nla_get_u16);
93da9cc1 3840 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3841 dot11MeshHWMPnetDiameterTraversalTime, mask,
3842 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3843 nla_get_u16);
3844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3845 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3846 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3847 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3848 nla_get_u16);
63c5723b 3849 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
a4f606ea
CYY		 3850 dot11MeshGateAnnouncementProtocol, mask,
3851 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3852 nla_get_u8);
94f90656 3853 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
a4f606ea
CYY		 3854 mask, NL80211_MESHCONF_FORWARDING,
3855 nla_get_u8);
55335137 3856 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
a4f606ea
CYY		 3857 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3858 nla_get_u32);
70c33eaa 3859 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
a4f606ea 3860 mask, NL80211_MESHCONF_HT_OPMODE,
ac1073a6
CYY		 3861 nla_get_u16);
3862 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3863 mask,
3864 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3865 nla_get_u32);
3866 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3867 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
728b19e5
CYY		 3868 nla_get_u16);
3869 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3870 dot11MeshHWMPconfirmationInterval, mask,
3871 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
a4f606ea 3872 nla_get_u16);
bd90fdcc
JB		 3873 if (mask_out)
3874 *mask_out = mask;
c80d545d 3875
bd90fdcc
JB		 3876 return 0;
3877
3878#undef FILL_IN_MESH_PARAM_IF_SET
3879}
3880
c80d545d
JC		 3881static int nl80211_parse_mesh_setup(struct genl_info *info,
3882 struct mesh_setup *setup)
3883{
3884 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3885
3886 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3887 return -EINVAL;
3888 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3889 info->attrs[NL80211_ATTR_MESH_SETUP],
3890 nl80211_mesh_setup_params_policy))
3891 return -EINVAL;
3892
d299a1f2
JC		 3893 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3894 setup->sync_method =
3895 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3896 IEEE80211_SYNC_METHOD_VENDOR :
3897 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3898
c80d545d
JC		 3899 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3900 setup->path_sel_proto =
3901 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3902 IEEE80211_PATH_PROTOCOL_VENDOR :
3903 IEEE80211_PATH_PROTOCOL_HWMP;
3904
3905 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3906 setup->path_metric =
3907 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3908 IEEE80211_PATH_METRIC_VENDOR :
3909 IEEE80211_PATH_METRIC_AIRTIME;
3910
581a8b0f
JC		 3911
3912 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3913 struct nlattr *ieattr =
581a8b0f 3914 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3915 if (!is_valid_ie_attr(ieattr))
3916 return -EINVAL;
581a8b0f
JC		 3917 setup->ie = nla_data(ieattr);
3918 setup->ie_len = nla_len(ieattr);
c80d545d 3919 }
b130e5ce
JC		 3920 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3921 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3922
3923 return 0;
3924}
3925
24bdd9f4 3926static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3927 struct genl_info *info)
bd90fdcc
JB		 3928{
3929 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3930 struct net_device *dev = info->user_ptr[1];
29cbe68c 3931 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3932 struct mesh_config cfg;
3933 u32 mask;
3934 int err;
3935
29cbe68c
JB		 3936 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3937 return -EOPNOTSUPP;
3938
24bdd9f4 3939 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3940 return -EOPNOTSUPP;
3941
24bdd9f4 3942 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3943 if (err)
3944 return err;
3945
29cbe68c
JB		 3946 wdev_lock(wdev);
3947 if (!wdev->mesh_id_len)
3948 err = -ENOLINK;
3949
3950 if (!err)
24bdd9f4 3951 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3952 mask, &cfg);
3953
3954 wdev_unlock(wdev);
3955
3956 return err;
93da9cc1 3957}
3958
f130347c
LR		 3959static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3960{
3961 struct sk_buff *msg;
3962 void *hdr = NULL;
3963 struct nlattr *nl_reg_rules;
3964 unsigned int i;
3965 int err = -EINVAL;
3966
a1794390 3967 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3968
3969 if (!cfg80211_regdomain)
3970 goto out;
3971
fd2120ca 3972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3973 if (!msg) {
3974 err = -ENOBUFS;
3975 goto out;
3976 }
3977
3978 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3979 NL80211_CMD_GET_REG);
3980 if (!hdr)
efe1cf0c 3981 goto put_failure;
f130347c 3982
9360ffd1
DM		 3983 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3984 cfg80211_regdomain->alpha2) ||
3985 (cfg80211_regdomain->dfs_region &&
3986 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3987 cfg80211_regdomain->dfs_region)))
3988 goto nla_put_failure;
f130347c 3989
57b5ce07
LR		 3990 if (reg_last_request_cell_base() &&
3991 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
3992 NL80211_USER_REG_HINT_CELL_BASE))
3993 goto nla_put_failure;
3994
f130347c
LR		 3995 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3996 if (!nl_reg_rules)
3997 goto nla_put_failure;
3998
3999 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
4000 struct nlattr *nl_reg_rule;
4001 const struct ieee80211_reg_rule *reg_rule;
4002 const struct ieee80211_freq_range *freq_range;
4003 const struct ieee80211_power_rule *power_rule;
4004
4005 reg_rule = &cfg80211_regdomain->reg_rules[i];
4006 freq_range = &reg_rule->freq_range;
4007 power_rule = &reg_rule->power_rule;
4008
4009 nl_reg_rule = nla_nest_start(msg, i);
4010 if (!nl_reg_rule)
4011 goto nla_put_failure;
4012
9360ffd1
DM		 4013 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4014 reg_rule->flags) ||
4015 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4016 freq_range->start_freq_khz) ||
4017 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4018 freq_range->end_freq_khz) ||
4019 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4020 freq_range->max_bandwidth_khz) ||
4021 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4022 power_rule->max_antenna_gain) ||
4023 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4024 power_rule->max_eirp))
4025 goto nla_put_failure;
f130347c
LR		 4026
4027 nla_nest_end(msg, nl_reg_rule);
4028 }
4029
4030 nla_nest_end(msg, nl_reg_rules);
4031
4032 genlmsg_end(msg, hdr);
134e6375 4033 err = genlmsg_reply(msg, info);
f130347c
LR		 4034 goto out;
4035
4036nla_put_failure:
4037 genlmsg_cancel(msg, hdr);
efe1cf0c 4038put_failure:
d080e275 4039 nlmsg_free(msg);
f130347c
LR		 4040 err = -EMSGSIZE;
4041out:
a1794390 4042 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 4043 return err;
4044}
4045
b2e1b302
LR		 4046static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4047{
4048 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4049 struct nlattr *nl_reg_rule;
4050 char *alpha2 = NULL;
4051 int rem_reg_rules = 0, r = 0;
4052 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 4053 u8 dfs_region = 0;
b2e1b302
LR		 4054 struct ieee80211_regdomain *rd = NULL;
4055
4056 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4057 return -EINVAL;
4058
4059 if (!info->attrs[NL80211_ATTR_REG_RULES])
4060 return -EINVAL;
4061
4062 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4063
8b60b078
LR		 4064 if (info->attrs[NL80211_ATTR_DFS_REGION])
4065 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4066
b2e1b302
LR		 4067 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4068 rem_reg_rules) {
4069 num_rules++;
4070 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 4071 return -EINVAL;
b2e1b302
LR		 4072 }
4073
61405e97
LR		 4074 mutex_lock(&cfg80211_mutex);
4075
d0e18f83
LR		 4076 if (!reg_is_valid_request(alpha2)) {
4077 r = -EINVAL;
4078 goto bad_reg;
4079 }
b2e1b302
LR		 4080
4081 size_of_regd = sizeof(struct ieee80211_regdomain) +
4082 (num_rules * sizeof(struct ieee80211_reg_rule));
4083
4084 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 4085 if (!rd) {
4086 r = -ENOMEM;
4087 goto bad_reg;
4088 }
b2e1b302
LR		 4089
4090 rd->n_reg_rules = num_rules;
4091 rd->alpha2[0] = alpha2[0];
4092 rd->alpha2[1] = alpha2[1];
4093
8b60b078
LR		 4094 /*
4095 * Disable DFS master mode if the DFS region was
4096 * not supported or known on this kernel.
4097 */
4098 if (reg_supported_dfs_region(dfs_region))
4099 rd->dfs_region = dfs_region;
4100
b2e1b302
LR		 4101 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4102 rem_reg_rules) {
4103 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4104 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4105 reg_rule_policy);
4106 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4107 if (r)
4108 goto bad_reg;
4109
4110 rule_idx++;
4111
d0e18f83
LR		 4112 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4113 r = -EINVAL;
b2e1b302 4114 goto bad_reg;
d0e18f83 4115 }
b2e1b302
LR		 4116 }
4117
4118 BUG_ON(rule_idx != num_rules);
4119
b2e1b302 4120 r = set_regdom(rd);
61405e97 4121
a1794390 4122 mutex_unlock(&cfg80211_mutex);
d0e18f83 4123
b2e1b302
LR		 4124 return r;
4125
d2372b31 4126 bad_reg:
61405e97 4127 mutex_unlock(&cfg80211_mutex);
b2e1b302 4128 kfree(rd);
d0e18f83 4129 return r;
b2e1b302
LR		 4130}
4131
83f5e2cf
JB		 4132static int validate_scan_freqs(struct nlattr *freqs)
4133{
4134 struct nlattr *attr1, *attr2;
4135 int n_channels = 0, tmp1, tmp2;
4136
4137 nla_for_each_nested(attr1, freqs, tmp1) {
4138 n_channels++;
4139 /*
4140 * Some hardware has a limited channel list for
4141 * scanning, and it is pretty much nonsensical
4142 * to scan for a channel twice, so disallow that
4143 * and don't require drivers to check that the
4144 * channel list they get isn't longer than what
4145 * they can scan, as long as they can scan all
4146 * the channels they registered at once.
4147 */
4148 nla_for_each_nested(attr2, freqs, tmp2)
4149 if (attr1 != attr2 &&
4150 nla_get_u32(attr1) == nla_get_u32(attr2))
4151 return 0;
4152 }
4153
4154 return n_channels;
4155}
4156
2a519311
JB		 4157static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4158{
4c476991 4159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fd014284 4160 struct wireless_dev *wdev = info->user_ptr[1];
2a519311 4161 struct cfg80211_scan_request *request;
2a519311
JB		 4162 struct nlattr *attr;
4163 struct wiphy *wiphy;
83f5e2cf 4164 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 4165 size_t ie_len;
2a519311 4166
f4a11bb0
JB		 4167 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4168 return -EINVAL;
4169
79c97e97 4170 wiphy = &rdev->wiphy;
2a519311 4171
4c476991
JB		 4172 if (!rdev->ops->scan)
4173 return -EOPNOTSUPP;
2a519311 4174
4c476991
JB		 4175 if (rdev->scan_req)
4176 return -EBUSY;
2a519311
JB		 4177
4178 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 4179 n_channels = validate_scan_freqs(
4180 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 4181 if (!n_channels)
4182 return -EINVAL;
2a519311 4183 } else {
34850ab2 4184 enum ieee80211_band band;
83f5e2cf
JB		 4185 n_channels = 0;
4186
2a519311
JB		 4187 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4188 if (wiphy->bands[band])
4189 n_channels += wiphy->bands[band]->n_channels;
4190 }
4191
4192 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4193 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4194 n_ssids++;
4195
4c476991
JB		 4196 if (n_ssids > wiphy->max_scan_ssids)
4197 return -EINVAL;
2a519311 4198
70692ad2
JM		 4199 if (info->attrs[NL80211_ATTR_IE])
4200 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4201 else
4202 ie_len = 0;
4203
4c476991
JB		 4204 if (ie_len > wiphy->max_scan_ie_len)
4205 return -EINVAL;
18a83659 4206
2a519311 4207 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 4208 + sizeof(*request->ssids) * n_ssids
4209 + sizeof(*request->channels) * n_channels
70692ad2 4210 + ie_len, GFP_KERNEL);
4c476991
JB		 4211 if (!request)
4212 return -ENOMEM;
2a519311 4213
2a519311 4214 if (n_ssids)
5ba63533 4215 request->ssids = (void *)&request->channels[n_channels];
2a519311 4216 request->n_ssids = n_ssids;
70692ad2
JM		 4217 if (ie_len) {
4218 if (request->ssids)
4219 request->ie = (void *)(request->ssids + n_ssids);
4220 else
4221 request->ie = (void *)(request->channels + n_channels);
4222 }
2a519311 4223
584991dc 4224 i = 0;
2a519311
JB		 4225 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4226 /* user specified, bail out if channel not found */
2a519311 4227 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 4228 struct ieee80211_channel *chan;
4229
4230 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4231
4232 if (!chan) {
2a519311
JB		 4233 err = -EINVAL;
4234 goto out_free;
4235 }
584991dc
JB		 4236
4237 /* ignore disabled channels */
4238 if (chan->flags & IEEE80211_CHAN_DISABLED)
4239 continue;
4240
4241 request->channels[i] = chan;
2a519311
JB		 4242 i++;
4243 }
4244 } else {
34850ab2
JB		 4245 enum ieee80211_band band;
4246
2a519311 4247 /* all channels */
2a519311
JB		 4248 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4249 int j;
4250 if (!wiphy->bands[band])
4251 continue;
4252 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 4253 struct ieee80211_channel *chan;
4254
4255 chan = &wiphy->bands[band]->channels[j];
4256
4257 if (chan->flags & IEEE80211_CHAN_DISABLED)
4258 continue;
4259
4260 request->channels[i] = chan;
2a519311
JB		 4261 i++;
4262 }
4263 }
4264 }
4265
584991dc
JB		 4266 if (!i) {
4267 err = -EINVAL;
4268 goto out_free;
4269 }
4270
4271 request->n_channels = i;
4272
2a519311
JB		 4273 i = 0;
4274 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4275 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 4276 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 4277 err = -EINVAL;
4278 goto out_free;
4279 }
57a27e1d 4280 request->ssids[i].ssid_len = nla_len(attr);
2a519311 4281 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 4282 i++;
4283 }
4284 }
4285
70692ad2
JM		 4286 if (info->attrs[NL80211_ATTR_IE]) {
4287 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 4288 memcpy((void *)request->ie,
4289 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 4290 request->ie_len);
4291 }
4292
34850ab2 4293 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 4294 if (wiphy->bands[i])
4295 request->rates[i] =
4296 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 4297
4298 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4299 nla_for_each_nested(attr,
4300 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4301 tmp) {
4302 enum ieee80211_band band = nla_type(attr);
4303
84404623 4304 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 4305 err = -EINVAL;
4306 goto out_free;
4307 }
4308 err = ieee80211_get_ratemask(wiphy->bands[band],
4309 nla_data(attr),
4310 nla_len(attr),
4311 &request->rates[band]);
4312 if (err)
4313 goto out_free;
4314 }
4315 }
4316
e9f935e3
RM		 4317 request->no_cck =
4318 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4319
fd014284 4320 request->wdev = wdev;
79c97e97 4321 request->wiphy = &rdev->wiphy;
2a519311 4322
79c97e97 4323 rdev->scan_req = request;
fd014284 4324 err = rdev->ops->scan(&rdev->wiphy, request);
2a519311 4325
463d0183 4326 if (!err) {
fd014284
JB		 4327 nl80211_send_scan_start(rdev, wdev);
4328 if (wdev->netdev)
4329 dev_hold(wdev->netdev);
4c476991 4330 } else {
2a519311 4331 out_free:
79c97e97 4332 rdev->scan_req = NULL;
2a519311
JB		 4333 kfree(request);
4334 }
3b85875a 4335
2a519311
JB		 4336 return err;
4337}
4338
807f8a8c
LC		 4339static int nl80211_start_sched_scan(struct sk_buff *skb,
4340 struct genl_info *info)
4341{
4342 struct cfg80211_sched_scan_request *request;
4343 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4344 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 4345 struct nlattr *attr;
4346 struct wiphy *wiphy;
a1f1c21c 4347 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 4348 u32 interval;
807f8a8c
LC		 4349 enum ieee80211_band band;
4350 size_t ie_len;
a1f1c21c 4351 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 4352
4353 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4354 !rdev->ops->sched_scan_start)
4355 return -EOPNOTSUPP;
4356
4357 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4358 return -EINVAL;
4359
bbe6ad6d
LC		 4360 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4361 return -EINVAL;
4362
4363 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4364 if (interval == 0)
4365 return -EINVAL;
4366
807f8a8c
LC		 4367 wiphy = &rdev->wiphy;
4368
4369 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4370 n_channels = validate_scan_freqs(
4371 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4372 if (!n_channels)
4373 return -EINVAL;
4374 } else {
4375 n_channels = 0;
4376
4377 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4378 if (wiphy->bands[band])
4379 n_channels += wiphy->bands[band]->n_channels;
4380 }
4381
4382 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4383 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4384 tmp)
4385 n_ssids++;
4386
93b6aa69 4387 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 4388 return -EINVAL;
4389
a1f1c21c
LC		 4390 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4391 nla_for_each_nested(attr,
4392 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4393 tmp)
4394 n_match_sets++;
4395
4396 if (n_match_sets > wiphy->max_match_sets)
4397 return -EINVAL;
4398
807f8a8c
LC		 4399 if (info->attrs[NL80211_ATTR_IE])
4400 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4401 else
4402 ie_len = 0;
4403
5a865bad 4404 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 4405 return -EINVAL;
4406
c10841ca
LC		 4407 mutex_lock(&rdev->sched_scan_mtx);
4408
4409 if (rdev->sched_scan_req) {
4410 err = -EINPROGRESS;
4411 goto out;
4412 }
4413
807f8a8c 4414 request = kzalloc(sizeof(*request)
a2cd43c5 4415 + sizeof(*request->ssids) * n_ssids
a1f1c21c 4416 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 4417 + sizeof(*request->channels) * n_channels
807f8a8c 4418 + ie_len, GFP_KERNEL);
c10841ca
LC		 4419 if (!request) {
4420 err = -ENOMEM;
4421 goto out;
4422 }
807f8a8c
LC		 4423
4424 if (n_ssids)
4425 request->ssids = (void *)&request->channels[n_channels];
4426 request->n_ssids = n_ssids;
4427 if (ie_len) {
4428 if (request->ssids)
4429 request->ie = (void *)(request->ssids + n_ssids);
4430 else
4431 request->ie = (void *)(request->channels + n_channels);
4432 }
4433
a1f1c21c
LC		 4434 if (n_match_sets) {
4435 if (request->ie)
4436 request->match_sets = (void *)(request->ie + ie_len);
4437 else if (request->ssids)
4438 request->match_sets =
4439 (void *)(request->ssids + n_ssids);
4440 else
4441 request->match_sets =
4442 (void *)(request->channels + n_channels);
4443 }
4444 request->n_match_sets = n_match_sets;
4445
807f8a8c
LC		 4446 i = 0;
4447 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4448 /* user specified, bail out if channel not found */
4449 nla_for_each_nested(attr,
4450 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4451 tmp) {
4452 struct ieee80211_channel *chan;
4453
4454 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4455
4456 if (!chan) {
4457 err = -EINVAL;
4458 goto out_free;
4459 }
4460
4461 /* ignore disabled channels */
4462 if (chan->flags & IEEE80211_CHAN_DISABLED)
4463 continue;
4464
4465 request->channels[i] = chan;
4466 i++;
4467 }
4468 } else {
4469 /* all channels */
4470 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4471 int j;
4472 if (!wiphy->bands[band])
4473 continue;
4474 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4475 struct ieee80211_channel *chan;
4476
4477 chan = &wiphy->bands[band]->channels[j];
4478
4479 if (chan->flags & IEEE80211_CHAN_DISABLED)
4480 continue;
4481
4482 request->channels[i] = chan;
4483 i++;
4484 }
4485 }
4486 }
4487
4488 if (!i) {
4489 err = -EINVAL;
4490 goto out_free;
4491 }
4492
4493 request->n_channels = i;
4494
4495 i = 0;
4496 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4497 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4498 tmp) {
57a27e1d 4499 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4500 err = -EINVAL;
4501 goto out_free;
4502 }
57a27e1d 4503 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4504 memcpy(request->ssids[i].ssid, nla_data(attr),
4505 nla_len(attr));
807f8a8c
LC		 4506 i++;
4507 }
4508 }
4509
a1f1c21c
LC		 4510 i = 0;
4511 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4512 nla_for_each_nested(attr,
4513 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4514 tmp) {
88e920b4 4515 struct nlattr *ssid, *rssi;
a1f1c21c
LC		 4516
4517 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4518 nla_data(attr), nla_len(attr),
4519 nl80211_match_policy);
4a4ab0d7 4520 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
a1f1c21c
LC		 4521 if (ssid) {
4522 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4523 err = -EINVAL;
4524 goto out_free;
4525 }
4526 memcpy(request->match_sets[i].ssid.ssid,
4527 nla_data(ssid), nla_len(ssid));
4528 request->match_sets[i].ssid.ssid_len =
4529 nla_len(ssid);
4530 }
88e920b4
TP		 4531 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4532 if (rssi)
4533 request->rssi_thold = nla_get_u32(rssi);
4534 else
4535 request->rssi_thold =
4536 NL80211_SCAN_RSSI_THOLD_OFF;
a1f1c21c
LC		 4537 i++;
4538 }
4539 }
4540
807f8a8c
LC		 4541 if (info->attrs[NL80211_ATTR_IE]) {
4542 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4543 memcpy((void *)request->ie,
4544 nla_data(info->attrs[NL80211_ATTR_IE]),
4545 request->ie_len);
4546 }
4547
4548 request->dev = dev;
4549 request->wiphy = &rdev->wiphy;
bbe6ad6d 4550 request->interval = interval;
807f8a8c
LC		 4551
4552 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4553 if (!err) {
4554 rdev->sched_scan_req = request;
4555 nl80211_send_sched_scan(rdev, dev,
4556 NL80211_CMD_START_SCHED_SCAN);
4557 goto out;
4558 }
4559
4560out_free:
4561 kfree(request);
4562out:
c10841ca 4563 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4564 return err;
4565}
4566
4567static int nl80211_stop_sched_scan(struct sk_buff *skb,
4568 struct genl_info *info)
4569{
4570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4571 int err;
807f8a8c
LC		 4572
4573 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4574 !rdev->ops->sched_scan_stop)
4575 return -EOPNOTSUPP;
4576
c10841ca
LC		 4577 mutex_lock(&rdev->sched_scan_mtx);
4578 err = __cfg80211_stop_sched_scan(rdev, false);
4579 mutex_unlock(&rdev->sched_scan_mtx);
4580
4581 return err;
807f8a8c
LC		 4582}
4583
9720bb3a
JB		 4584static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4585 u32 seq, int flags,
2a519311 4586 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4587 struct wireless_dev *wdev,
4588 struct cfg80211_internal_bss *intbss)
2a519311 4589{
48ab905d 4590 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4591 void *hdr;
4592 struct nlattr *bss;
48ab905d
JB		 4593
4594 ASSERT_WDEV_LOCK(wdev);
2a519311 4595
9720bb3a 4596 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4597 NL80211_CMD_NEW_SCAN_RESULTS);
4598 if (!hdr)
4599 return -1;
4600
9720bb3a
JB		 4601 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4602
9360ffd1
DM		 4603 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4604 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4605 goto nla_put_failure;
2a519311
JB		 4606
4607 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4608 if (!bss)
4609 goto nla_put_failure;
9360ffd1
DM		 4610 if ((!is_zero_ether_addr(res->bssid) &&
4611 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4612 (res->information_elements && res->len_information_elements &&
4613 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4614 res->len_information_elements,
4615 res->information_elements)) ||
4616 (res->beacon_ies && res->len_beacon_ies &&
4617 res->beacon_ies != res->information_elements &&
4618 nla_put(msg, NL80211_BSS_BEACON_IES,
4619 res->len_beacon_ies, res->beacon_ies)))
4620 goto nla_put_failure;
4621 if (res->tsf &&
4622 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4623 goto nla_put_failure;
4624 if (res->beacon_interval &&
4625 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4626 goto nla_put_failure;
4627 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4628 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4629 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4630 jiffies_to_msecs(jiffies - intbss->ts)))
4631 goto nla_put_failure;
2a519311 4632
77965c97 4633 switch (rdev->wiphy.signal_type) {
2a519311 4634 case CFG80211_SIGNAL_TYPE_MBM:
9360ffd1
DM		 4635 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4636 goto nla_put_failure;
2a519311
JB		 4637 break;
4638 case CFG80211_SIGNAL_TYPE_UNSPEC:
9360ffd1
DM		 4639 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4640 goto nla_put_failure;
2a519311
JB		 4641 break;
4642 default:
4643 break;
4644 }
4645
48ab905d 4646 switch (wdev->iftype) {
074ac8df 4647 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d 4648 case NL80211_IFTYPE_STATION:
9360ffd1
DM		 4649 if (intbss == wdev->current_bss &&
4650 nla_put_u32(msg, NL80211_BSS_STATUS,
4651 NL80211_BSS_STATUS_ASSOCIATED))
4652 goto nla_put_failure;
48ab905d
JB		 4653 break;
4654 case NL80211_IFTYPE_ADHOC:
9360ffd1
DM		 4655 if (intbss == wdev->current_bss &&
4656 nla_put_u32(msg, NL80211_BSS_STATUS,
4657 NL80211_BSS_STATUS_IBSS_JOINED))
4658 goto nla_put_failure;
48ab905d
JB		 4659 break;
4660 default:
4661 break;
4662 }
4663
2a519311
JB		 4664 nla_nest_end(msg, bss);
4665
4666 return genlmsg_end(msg, hdr);
4667
4668 nla_put_failure:
4669 genlmsg_cancel(msg, hdr);
4670 return -EMSGSIZE;
4671}
4672
4673static int nl80211_dump_scan(struct sk_buff *skb,
4674 struct netlink_callback *cb)
4675{
48ab905d
JB		 4676 struct cfg80211_registered_device *rdev;
4677 struct net_device *dev;
2a519311 4678 struct cfg80211_internal_bss *scan;
48ab905d 4679 struct wireless_dev *wdev;
2a519311
JB		 4680 int start = cb->args[1], idx = 0;
4681 int err;
4682
67748893
JB		 4683 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4684 if (err)
4685 return err;
2a519311 4686
48ab905d 4687 wdev = dev->ieee80211_ptr;
2a519311 4688
48ab905d
JB		 4689 wdev_lock(wdev);
4690 spin_lock_bh(&rdev->bss_lock);
4691 cfg80211_bss_expire(rdev);
4692
9720bb3a
JB		 4693 cb->seq = rdev->bss_generation;
4694
48ab905d 4695 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4696 if (++idx <= start)
4697 continue;
9720bb3a 4698 if (nl80211_send_bss(skb, cb,
2a519311 4699 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4700 rdev, wdev, scan) < 0) {
2a519311 4701 idx--;
67748893 4702 break;
2a519311
JB		 4703 }
4704 }
4705
48ab905d
JB		 4706 spin_unlock_bh(&rdev->bss_lock);
4707 wdev_unlock(wdev);
2a519311
JB		 4708
4709 cb->args[1] = idx;
67748893 4710 nl80211_finish_netdev_dump(rdev);
2a519311 4711
67748893 4712 return skb->len;
2a519311
JB		 4713}
4714
61fa713c
HS		 4715static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4716 int flags, struct net_device *dev,
4717 struct survey_info *survey)
4718{
4719 void *hdr;
4720 struct nlattr *infoattr;
4721
61fa713c
HS		 4722 hdr = nl80211hdr_put(msg, pid, seq, flags,
4723 NL80211_CMD_NEW_SURVEY_RESULTS);
4724 if (!hdr)
4725 return -ENOMEM;
4726
9360ffd1
DM		 4727 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4728 goto nla_put_failure;
61fa713c
HS		 4729
4730 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4731 if (!infoattr)
4732 goto nla_put_failure;
4733
9360ffd1
DM		 4734 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4735 survey->channel->center_freq))
4736 goto nla_put_failure;
4737
4738 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4739 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4740 goto nla_put_failure;
4741 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4742 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4743 goto nla_put_failure;
4744 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4745 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4746 survey->channel_time))
4747 goto nla_put_failure;
4748 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4749 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4750 survey->channel_time_busy))
4751 goto nla_put_failure;
4752 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4753 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4754 survey->channel_time_ext_busy))
4755 goto nla_put_failure;
4756 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4757 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4758 survey->channel_time_rx))
4759 goto nla_put_failure;
4760 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4761 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4762 survey->channel_time_tx))
4763 goto nla_put_failure;
61fa713c
HS		 4764
4765 nla_nest_end(msg, infoattr);
4766
4767 return genlmsg_end(msg, hdr);
4768
4769 nla_put_failure:
4770 genlmsg_cancel(msg, hdr);
4771 return -EMSGSIZE;
4772}
4773
4774static int nl80211_dump_survey(struct sk_buff *skb,
4775 struct netlink_callback *cb)
4776{
4777 struct survey_info survey;
4778 struct cfg80211_registered_device *dev;
4779 struct net_device *netdev;
61fa713c
HS		 4780 int survey_idx = cb->args[1];
4781 int res;
4782
67748893
JB		 4783 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4784 if (res)
4785 return res;
61fa713c
HS		 4786
4787 if (!dev->ops->dump_survey) {
4788 res = -EOPNOTSUPP;
4789 goto out_err;
4790 }
4791
4792 while (1) {
180cdc79
LR		 4793 struct ieee80211_channel *chan;
4794
61fa713c
HS		 4795 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4796 &survey);
4797 if (res == -ENOENT)
4798 break;
4799 if (res)
4800 goto out_err;
4801
180cdc79
LR		 4802 /* Survey without a channel doesn't make sense */
4803 if (!survey.channel) {
4804 res = -EINVAL;
4805 goto out;
4806 }
4807
4808 chan = ieee80211_get_channel(&dev->wiphy,
4809 survey.channel->center_freq);
4810 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4811 survey_idx++;
4812 continue;
4813 }
4814
61fa713c
HS		 4815 if (nl80211_send_survey(skb,
4816 NETLINK_CB(cb->skb).pid,
4817 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4818 netdev,
4819 &survey) < 0)
4820 goto out;
4821 survey_idx++;
4822 }
4823
4824 out:
4825 cb->args[1] = survey_idx;
4826 res = skb->len;
4827 out_err:
67748893 4828 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4829 return res;
4830}
4831
255e737e
JM		 4832static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4833{
b23aa676
SO		 4834 return auth_type <= NL80211_AUTHTYPE_MAX;
4835}
4836
4837static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4838{
4839 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4840 NL80211_WPA_VERSION_2));
4841}
4842
636a5d36
JM		 4843static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4844{
4c476991
JB		 4845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4846 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4847 struct ieee80211_channel *chan;
4848 const u8 *bssid, *ssid, *ie = NULL;
4849 int err, ssid_len, ie_len = 0;
4850 enum nl80211_auth_type auth_type;
fffd0934 4851 struct key_parse key;
d5cdfacb 4852 bool local_state_change;
636a5d36 4853
f4a11bb0
JB		 4854 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4855 return -EINVAL;
4856
4857 if (!info->attrs[NL80211_ATTR_MAC])
4858 return -EINVAL;
4859
1778092e
JM		 4860 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4861 return -EINVAL;
4862
19957bb3
JB		 4863 if (!info->attrs[NL80211_ATTR_SSID])
4864 return -EINVAL;
4865
4866 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4867 return -EINVAL;
4868
fffd0934
JB		 4869 err = nl80211_parse_key(info, &key);
4870 if (err)
4871 return err;
4872
4873 if (key.idx >= 0) {
e31b8213
JB		 4874 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4875 return -EINVAL;
fffd0934
JB		 4876 if (!key.p.key || !key.p.key_len)
4877 return -EINVAL;
4878 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4879 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4880 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4881 key.p.key_len != WLAN_KEY_LEN_WEP104))
4882 return -EINVAL;
4883 if (key.idx > 4)
4884 return -EINVAL;
4885 } else {
4886 key.p.key_len = 0;
4887 key.p.key = NULL;
4888 }
4889
afea0b7a
JB		 4890 if (key.idx >= 0) {
4891 int i;
4892 bool ok = false;
4893 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4894 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4895 ok = true;
4896 break;
4897 }
4898 }
4c476991
JB		 4899 if (!ok)
4900 return -EINVAL;
afea0b7a
JB		 4901 }
4902
4c476991
JB		 4903 if (!rdev->ops->auth)
4904 return -EOPNOTSUPP;
636a5d36 4905
074ac8df 4906 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4907 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4908 return -EOPNOTSUPP;
eec60b03 4909
19957bb3 4910 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4911 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4912 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4913 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4914 return -EINVAL;
636a5d36 4915
19957bb3
JB		 4916 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4917 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4918
4919 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4920 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4921 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4922 }
4923
19957bb3 4924 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4925 if (!nl80211_valid_auth_type(auth_type))
4926 return -EINVAL;
636a5d36 4927
d5cdfacb
JM		 4928 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4929
95de817b
JB		 4930 /*
4931 * Since we no longer track auth state, ignore
4932 * requests to only change local state.
4933 */
4934 if (local_state_change)
4935 return 0;
4936
4c476991
JB		 4937 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4938 ssid, ssid_len, ie, ie_len,
95de817b 4939 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 4940}
4941
c0692b8f
JB		 4942static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4943 struct genl_info *info,
3dc27d25
JB		 4944 struct cfg80211_crypto_settings *settings,
4945 int cipher_limit)
b23aa676 4946{
c0b2bbd8
JB		 4947 memset(settings, 0, sizeof(*settings));
4948
b23aa676
SO		 4949 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4950
c0692b8f
JB		 4951 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4952 u16 proto;
4953 proto = nla_get_u16(
4954 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4955 settings->control_port_ethertype = cpu_to_be16(proto);
4956 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4957 proto != ETH_P_PAE)
4958 return -EINVAL;
4959 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4960 settings->control_port_no_encrypt = true;
4961 } else
4962 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4963
b23aa676
SO		 4964 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4965 void *data;
4966 int len, i;
4967
4968 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4969 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4970 settings->n_ciphers_pairwise = len / sizeof(u32);
4971
4972 if (len % sizeof(u32))
4973 return -EINVAL;
4974
3dc27d25 4975 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4976 return -EINVAL;
4977
4978 memcpy(settings->ciphers_pairwise, data, len);
4979
4980 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4981 if (!cfg80211_supported_cipher_suite(
4982 &rdev->wiphy,
b23aa676
SO		 4983 settings->ciphers_pairwise[i]))
4984 return -EINVAL;
4985 }
4986
4987 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4988 settings->cipher_group =
4989 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4990 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4991 settings->cipher_group))
b23aa676
SO		 4992 return -EINVAL;
4993 }
4994
4995 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4996 settings->wpa_versions =
4997 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4998 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4999 return -EINVAL;
5000 }
5001
5002 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5003 void *data;
6d30240e 5004 int len;
b23aa676
SO		 5005
5006 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5007 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5008 settings->n_akm_suites = len / sizeof(u32);
5009
5010 if (len % sizeof(u32))
5011 return -EINVAL;
5012
1b9ca027
JM		 5013 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5014 return -EINVAL;
5015
b23aa676 5016 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 5017 }
5018
5019 return 0;
5020}
5021
636a5d36
JM		 5022static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5023{
4c476991
JB		 5024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5025 struct net_device *dev = info->user_ptr[1];
19957bb3 5026 struct cfg80211_crypto_settings crypto;
f444de05 5027 struct ieee80211_channel *chan;
3e5d7649 5028 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 5029 int err, ssid_len, ie_len = 0;
5030 bool use_mfp = false;
7e7c8926
BG		 5031 u32 flags = 0;
5032 struct ieee80211_ht_cap *ht_capa = NULL;
5033 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 5034
f4a11bb0
JB		 5035 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5036 return -EINVAL;
5037
5038 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 5039 !info->attrs[NL80211_ATTR_SSID] ||
5040 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 5041 return -EINVAL;
5042
4c476991
JB		 5043 if (!rdev->ops->assoc)
5044 return -EOPNOTSUPP;
636a5d36 5045
074ac8df 5046 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5047 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5048 return -EOPNOTSUPP;
eec60b03 5049
19957bb3 5050 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5051
19957bb3
JB		 5052 chan = ieee80211_get_channel(&rdev->wiphy,
5053 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 5054 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5055 return -EINVAL;
636a5d36 5056
19957bb3
JB		 5057 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5058 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 5059
5060 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5061 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5062 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5063 }
5064
dc6382ce 5065 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 5066 enum nl80211_mfp mfp =
dc6382ce 5067 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 5068 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 5069 use_mfp = true;
4c476991
JB		 5070 else if (mfp != NL80211_MFP_NO)
5071 return -EINVAL;
dc6382ce
JM		 5072 }
5073
3e5d7649
JB		 5074 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5075 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5076
7e7c8926
BG		 5077 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5078 flags |= ASSOC_REQ_DISABLE_HT;
5079
5080 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5081 ht_capa_mask =
5082 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5083
5084 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5085 if (!ht_capa_mask)
5086 return -EINVAL;
5087 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5088 }
5089
c0692b8f 5090 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 5091 if (!err)
3e5d7649
JB		 5092 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5093 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 5094 &crypto, flags, ht_capa,
5095 ht_capa_mask);
636a5d36 5096
636a5d36
JM		 5097 return err;
5098}
5099
5100static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5101{
4c476991
JB		 5102 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5103 struct net_device *dev = info->user_ptr[1];
19957bb3 5104 const u8 *ie = NULL, *bssid;
4c476991 5105 int ie_len = 0;
19957bb3 5106 u16 reason_code;
d5cdfacb 5107 bool local_state_change;
636a5d36 5108
f4a11bb0
JB		 5109 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5110 return -EINVAL;
5111
5112 if (!info->attrs[NL80211_ATTR_MAC])
5113 return -EINVAL;
5114
5115 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5116 return -EINVAL;
5117
4c476991
JB		 5118 if (!rdev->ops->deauth)
5119 return -EOPNOTSUPP;
636a5d36 5120
074ac8df 5121 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5122 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5123 return -EOPNOTSUPP;
eec60b03 5124
19957bb3 5125 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5126
19957bb3
JB		 5127 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5128 if (reason_code == 0) {
f4a11bb0 5129 /* Reason Code 0 is reserved */
4c476991 5130 return -EINVAL;
255e737e 5131 }
636a5d36
JM		 5132
5133 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5134 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5135 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5136 }
5137
d5cdfacb
JM		 5138 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5139
4c476991
JB		 5140 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5141 local_state_change);
636a5d36
JM		 5142}
5143
5144static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5145{
4c476991
JB		 5146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5147 struct net_device *dev = info->user_ptr[1];
19957bb3 5148 const u8 *ie = NULL, *bssid;
4c476991 5149 int ie_len = 0;
19957bb3 5150 u16 reason_code;
d5cdfacb 5151 bool local_state_change;
636a5d36 5152
f4a11bb0
JB		 5153 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5154 return -EINVAL;
5155
5156 if (!info->attrs[NL80211_ATTR_MAC])
5157 return -EINVAL;
5158
5159 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5160 return -EINVAL;
5161
4c476991
JB		 5162 if (!rdev->ops->disassoc)
5163 return -EOPNOTSUPP;
636a5d36 5164
074ac8df 5165 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5166 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5167 return -EOPNOTSUPP;
eec60b03 5168
19957bb3 5169 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 5170
19957bb3
JB		 5171 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5172 if (reason_code == 0) {
f4a11bb0 5173 /* Reason Code 0 is reserved */
4c476991 5174 return -EINVAL;
255e737e 5175 }
636a5d36
JM		 5176
5177 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 5178 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5179 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 5180 }
5181
d5cdfacb
JM		 5182 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5183
4c476991
JB		 5184 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5185 local_state_change);
636a5d36
JM		 5186}
5187
dd5b4cc7
FF		 5188static bool
5189nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5190 int mcast_rate[IEEE80211_NUM_BANDS],
5191 int rateval)
5192{
5193 struct wiphy *wiphy = &rdev->wiphy;
5194 bool found = false;
5195 int band, i;
5196
5197 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5198 struct ieee80211_supported_band *sband;
5199
5200 sband = wiphy->bands[band];
5201 if (!sband)
5202 continue;
5203
5204 for (i = 0; i < sband->n_bitrates; i++) {
5205 if (sband->bitrates[i].bitrate == rateval) {
5206 mcast_rate[band] = i + 1;
5207 found = true;
5208 break;
5209 }
5210 }
5211 }
5212
5213 return found;
5214}
5215
04a773ad
JB		 5216static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5217{
4c476991
JB		 5218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5219 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 5220 struct cfg80211_ibss_params ibss;
5221 struct wiphy *wiphy;
fffd0934 5222 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 5223 int err;
5224
8e30bc55
JB		 5225 memset(&ibss, 0, sizeof(ibss));
5226
04a773ad
JB		 5227 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5228 return -EINVAL;
5229
5230 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5231 !info->attrs[NL80211_ATTR_SSID] ||
5232 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5233 return -EINVAL;
5234
8e30bc55
JB		 5235 ibss.beacon_interval = 100;
5236
5237 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5238 ibss.beacon_interval =
5239 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5240 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5241 return -EINVAL;
5242 }
5243
4c476991
JB		 5244 if (!rdev->ops->join_ibss)
5245 return -EOPNOTSUPP;
04a773ad 5246
4c476991
JB		 5247 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5248 return -EOPNOTSUPP;
04a773ad 5249
79c97e97 5250 wiphy = &rdev->wiphy;
04a773ad 5251
39193498 5252 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 5253 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 5254
5255 if (!is_valid_ether_addr(ibss.bssid))
5256 return -EINVAL;
5257 }
04a773ad
JB		 5258 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5259 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5260
5261 if (info->attrs[NL80211_ATTR_IE]) {
5262 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5263 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5264 }
5265
54858ee5
AS		 5266 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5267 enum nl80211_channel_type channel_type;
5268
cd6c6598 5269 if (!nl80211_valid_channel_type(info, &channel_type))
54858ee5
AS		 5270 return -EINVAL;
5271
5272 if (channel_type != NL80211_CHAN_NO_HT &&
5273 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5274 return -EINVAL;
5275
5276 ibss.channel_type = channel_type;
5277 } else {
5278 ibss.channel_type = NL80211_CHAN_NO_HT;
5279 }
5280
5281 ibss.channel = rdev_freq_to_chan(rdev,
5282 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5283 ibss.channel_type);
04a773ad
JB		 5284 if (!ibss.channel ||
5285 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 5286 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5287 return -EINVAL;
04a773ad 5288
54858ee5
AS		 5289 /* Both channels should be able to initiate communication */
5290 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5291 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5292 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5293 ibss.channel_type))
5294 return -EINVAL;
5295
04a773ad 5296 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 5297 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5298
fbd2c8dc
TP		 5299 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5300 u8 *rates =
5301 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5302 int n_rates =
5303 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5304 struct ieee80211_supported_band *sband =
5305 wiphy->bands[ibss.channel->band];
fbd2c8dc 5306
34850ab2
JB		 5307 err = ieee80211_get_ratemask(sband, rates, n_rates,
5308 &ibss.basic_rates);
5309 if (err)
5310 return err;
fbd2c8dc 5311 }
dd5b4cc7
FF		 5312
5313 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5314 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5315 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5316 return -EINVAL;
fbd2c8dc 5317
4c476991
JB		 5318 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5319 connkeys = nl80211_parse_connkeys(rdev,
5320 info->attrs[NL80211_ATTR_KEYS]);
5321 if (IS_ERR(connkeys))
5322 return PTR_ERR(connkeys);
5323 }
04a773ad 5324
267335d6
AQ		 5325 ibss.control_port =
5326 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5327
4c476991 5328 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 5329 if (err)
5330 kfree(connkeys);
04a773ad
JB		 5331 return err;
5332}
5333
5334static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5335{
4c476991
JB		 5336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5337 struct net_device *dev = info->user_ptr[1];
04a773ad 5338
4c476991
JB		 5339 if (!rdev->ops->leave_ibss)
5340 return -EOPNOTSUPP;
04a773ad 5341
4c476991
JB		 5342 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5343 return -EOPNOTSUPP;
04a773ad 5344
4c476991 5345 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 5346}
5347
aff89a9b
JB		 5348#ifdef CONFIG_NL80211_TESTMODE
5349static struct genl_multicast_group nl80211_testmode_mcgrp = {
5350 .name = "testmode",
5351};
5352
5353static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5354{
4c476991 5355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 5356 int err;
5357
5358 if (!info->attrs[NL80211_ATTR_TESTDATA])
5359 return -EINVAL;
5360
aff89a9b
JB		 5361 err = -EOPNOTSUPP;
5362 if (rdev->ops->testmode_cmd) {
5363 rdev->testmode_info = info;
5364 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5365 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5366 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5367 rdev->testmode_info = NULL;
5368 }
5369
aff89a9b
JB		 5370 return err;
5371}
5372
71063f0e
WYG		 5373static int nl80211_testmode_dump(struct sk_buff *skb,
5374 struct netlink_callback *cb)
5375{
00918d33 5376 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 5377 int err;
5378 long phy_idx;
5379 void *data = NULL;
5380 int data_len = 0;
5381
5382 if (cb->args[0]) {
5383 /*
5384 * 0 is a valid index, but not valid for args[0],
5385 * so we need to offset by 1.
5386 */
5387 phy_idx = cb->args[0] - 1;
5388 } else {
5389 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5390 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5391 nl80211_policy);
5392 if (err)
5393 return err;
00918d33 5394
2bd7e35d
JB		 5395 mutex_lock(&cfg80211_mutex);
5396 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5397 nl80211_fam.attrbuf);
5398 if (IS_ERR(rdev)) {
5399 mutex_unlock(&cfg80211_mutex);
5400 return PTR_ERR(rdev);
00918d33 5401 }
2bd7e35d
JB		 5402 phy_idx = rdev->wiphy_idx;
5403 rdev = NULL;
5404 mutex_unlock(&cfg80211_mutex);
5405
71063f0e
WYG		 5406 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5407 cb->args[1] =
5408 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5409 }
5410
5411 if (cb->args[1]) {
5412 data = nla_data((void *)cb->args[1]);
5413 data_len = nla_len((void *)cb->args[1]);
5414 }
5415
5416 mutex_lock(&cfg80211_mutex);
00918d33
JB		 5417 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5418 if (!rdev) {
71063f0e
WYG		 5419 mutex_unlock(&cfg80211_mutex);
5420 return -ENOENT;
5421 }
00918d33 5422 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 5423 mutex_unlock(&cfg80211_mutex);
5424
00918d33 5425 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 5426 err = -EOPNOTSUPP;
5427 goto out_err;
5428 }
5429
5430 while (1) {
5431 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5432 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5433 NL80211_CMD_TESTMODE);
5434 struct nlattr *tmdata;
5435
9360ffd1 5436 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
71063f0e
WYG		 5437 genlmsg_cancel(skb, hdr);
5438 break;
5439 }
5440
5441 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5442 if (!tmdata) {
5443 genlmsg_cancel(skb, hdr);
5444 break;
5445 }
00918d33
JB		 5446 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5447 data, data_len);
71063f0e
WYG		 5448 nla_nest_end(skb, tmdata);
5449
5450 if (err == -ENOBUFS || err == -ENOENT) {
5451 genlmsg_cancel(skb, hdr);
5452 break;
5453 } else if (err) {
5454 genlmsg_cancel(skb, hdr);
5455 goto out_err;
5456 }
5457
5458 genlmsg_end(skb, hdr);
5459 }
5460
5461 err = skb->len;
5462 /* see above */
5463 cb->args[0] = phy_idx + 1;
5464 out_err:
00918d33 5465 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5466 return err;
5467}
5468
aff89a9b
JB		 5469static struct sk_buff *
5470__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5471 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5472{
5473 struct sk_buff *skb;
5474 void *hdr;
5475 struct nlattr *data;
5476
5477 skb = nlmsg_new(approxlen + 100, gfp);
5478 if (!skb)
5479 return NULL;
5480
5481 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5482 if (!hdr) {
5483 kfree_skb(skb);
5484 return NULL;
5485 }
5486
9360ffd1
DM		 5487 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5488 goto nla_put_failure;
aff89a9b
JB		 5489 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5490
5491 ((void **)skb->cb)[0] = rdev;
5492 ((void **)skb->cb)[1] = hdr;
5493 ((void **)skb->cb)[2] = data;
5494
5495 return skb;
5496
5497 nla_put_failure:
5498 kfree_skb(skb);
5499 return NULL;
5500}
5501
5502struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5503 int approxlen)
5504{
5505 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5506
5507 if (WARN_ON(!rdev->testmode_info))
5508 return NULL;
5509
5510 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5511 rdev->testmode_info->snd_pid,
5512 rdev->testmode_info->snd_seq,
5513 GFP_KERNEL);
5514}
5515EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5516
5517int cfg80211_testmode_reply(struct sk_buff *skb)
5518{
5519 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5520 void *hdr = ((void **)skb->cb)[1];
5521 struct nlattr *data = ((void **)skb->cb)[2];
5522
5523 if (WARN_ON(!rdev->testmode_info)) {
5524 kfree_skb(skb);
5525 return -EINVAL;
5526 }
5527
5528 nla_nest_end(skb, data);
5529 genlmsg_end(skb, hdr);
5530 return genlmsg_reply(skb, rdev->testmode_info);
5531}
5532EXPORT_SYMBOL(cfg80211_testmode_reply);
5533
5534struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5535 int approxlen, gfp_t gfp)
5536{
5537 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5538
5539 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5540}
5541EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5542
5543void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5544{
5545 void *hdr = ((void **)skb->cb)[1];
5546 struct nlattr *data = ((void **)skb->cb)[2];
5547
5548 nla_nest_end(skb, data);
5549 genlmsg_end(skb, hdr);
5550 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5551}
5552EXPORT_SYMBOL(cfg80211_testmode_event);
5553#endif
5554
b23aa676
SO		 5555static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5556{
4c476991
JB		 5557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5558 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5559 struct cfg80211_connect_params connect;
5560 struct wiphy *wiphy;
fffd0934 5561 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5562 int err;
5563
5564 memset(&connect, 0, sizeof(connect));
5565
5566 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5567 return -EINVAL;
5568
5569 if (!info->attrs[NL80211_ATTR_SSID] ||
5570 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5571 return -EINVAL;
5572
5573 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5574 connect.auth_type =
5575 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5576 if (!nl80211_valid_auth_type(connect.auth_type))
5577 return -EINVAL;
5578 } else
5579 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5580
5581 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5582
c0692b8f 5583 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5584 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5585 if (err)
5586 return err;
b23aa676 5587
074ac8df 5588 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5589 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5590 return -EOPNOTSUPP;
b23aa676 5591
79c97e97 5592 wiphy = &rdev->wiphy;
b23aa676 5593
4486ea98
BS		 5594 connect.bg_scan_period = -1;
5595 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5596 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5597 connect.bg_scan_period =
5598 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5599 }
5600
b23aa676
SO		 5601 if (info->attrs[NL80211_ATTR_MAC])
5602 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5603 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5604 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5605
5606 if (info->attrs[NL80211_ATTR_IE]) {
5607 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5608 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5609 }
5610
5611 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5612 connect.channel =
5613 ieee80211_get_channel(wiphy,
5614 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5615 if (!connect.channel ||
4c476991
JB		 5616 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5617 return -EINVAL;
b23aa676
SO		 5618 }
5619
fffd0934
JB		 5620 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5621 connkeys = nl80211_parse_connkeys(rdev,
5622 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5623 if (IS_ERR(connkeys))
5624 return PTR_ERR(connkeys);
fffd0934
JB		 5625 }
5626
7e7c8926
BG		 5627 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5628 connect.flags |= ASSOC_REQ_DISABLE_HT;
5629
5630 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5631 memcpy(&connect.ht_capa_mask,
5632 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5633 sizeof(connect.ht_capa_mask));
5634
5635 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5636 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5637 return -EINVAL;
5638 memcpy(&connect.ht_capa,
5639 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5640 sizeof(connect.ht_capa));
5641 }
5642
fffd0934 5643 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5644 if (err)
5645 kfree(connkeys);
b23aa676
SO		 5646 return err;
5647}
5648
5649static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5650{
4c476991
JB		 5651 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5652 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5653 u16 reason;
5654
5655 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5656 reason = WLAN_REASON_DEAUTH_LEAVING;
5657 else
5658 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5659
5660 if (reason == 0)
5661 return -EINVAL;
5662
074ac8df 5663 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5664 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5665 return -EOPNOTSUPP;
b23aa676 5666
4c476991 5667 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5668}
5669
463d0183
JB		 5670static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5671{
4c476991 5672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5673 struct net *net;
5674 int err;
5675 u32 pid;
5676
5677 if (!info->attrs[NL80211_ATTR_PID])
5678 return -EINVAL;
5679
5680 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5681
463d0183 5682 net = get_net_ns_by_pid(pid);
4c476991
JB		 5683 if (IS_ERR(net))
5684 return PTR_ERR(net);
463d0183
JB		 5685
5686 err = 0;
5687
5688 /* check if anything to do */
4c476991
JB		 5689 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5690 err = cfg80211_switch_netns(rdev, net);
463d0183 5691
463d0183 5692 put_net(net);
463d0183
JB		 5693 return err;
5694}
5695
67fbb16b
SO		 5696static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5697{
4c476991 5698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5699 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5700 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5701 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5702 struct cfg80211_pmksa pmksa;
5703
5704 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5705
5706 if (!info->attrs[NL80211_ATTR_MAC])
5707 return -EINVAL;
5708
5709 if (!info->attrs[NL80211_ATTR_PMKID])
5710 return -EINVAL;
5711
67fbb16b
SO		 5712 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5713 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5714
074ac8df 5715 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5716 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5717 return -EOPNOTSUPP;
67fbb16b
SO		 5718
5719 switch (info->genlhdr->cmd) {
5720 case NL80211_CMD_SET_PMKSA:
5721 rdev_ops = rdev->ops->set_pmksa;
5722 break;
5723 case NL80211_CMD_DEL_PMKSA:
5724 rdev_ops = rdev->ops->del_pmksa;
5725 break;
5726 default:
5727 WARN_ON(1);
5728 break;
5729 }
5730
4c476991
JB		 5731 if (!rdev_ops)
5732 return -EOPNOTSUPP;
67fbb16b 5733
4c476991 5734 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5735}
5736
5737static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5738{
4c476991
JB		 5739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5740 struct net_device *dev = info->user_ptr[1];
67fbb16b 5741
074ac8df 5742 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5743 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5744 return -EOPNOTSUPP;
67fbb16b 5745
4c476991
JB		 5746 if (!rdev->ops->flush_pmksa)
5747 return -EOPNOTSUPP;
67fbb16b 5748
4c476991 5749 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5750}
5751
109086ce
AN		 5752static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5753{
5754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5755 struct net_device *dev = info->user_ptr[1];
5756 u8 action_code, dialog_token;
5757 u16 status_code;
5758 u8 *peer;
5759
5760 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5761 !rdev->ops->tdls_mgmt)
5762 return -EOPNOTSUPP;
5763
5764 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5765 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5766 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5767 !info->attrs[NL80211_ATTR_IE] ||
5768 !info->attrs[NL80211_ATTR_MAC])
5769 return -EINVAL;
5770
5771 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5772 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5773 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5774 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5775
5776 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5777 dialog_token, status_code,
5778 nla_data(info->attrs[NL80211_ATTR_IE]),
5779 nla_len(info->attrs[NL80211_ATTR_IE]));
5780}
5781
5782static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5783{
5784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5785 struct net_device *dev = info->user_ptr[1];
5786 enum nl80211_tdls_operation operation;
5787 u8 *peer;
5788
5789 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5790 !rdev->ops->tdls_oper)
5791 return -EOPNOTSUPP;
5792
5793 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5794 !info->attrs[NL80211_ATTR_MAC])
5795 return -EINVAL;
5796
5797 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5798 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5799
5800 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5801}
5802
9588bbd5
JM		 5803static int nl80211_remain_on_channel(struct sk_buff *skb,
5804 struct genl_info *info)
5805{
4c476991 5806 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 5807 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5
JM		 5808 struct ieee80211_channel *chan;
5809 struct sk_buff *msg;
5810 void *hdr;
5811 u64 cookie;
5812 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5813 u32 freq, duration;
5814 int err;
5815
5816 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5817 !info->attrs[NL80211_ATTR_DURATION])
5818 return -EINVAL;
5819
5820 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5821
ebf348fc
JB		 5822 if (!rdev->ops->remain_on_channel ||
5823 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5824 return -EOPNOTSUPP;
5825
9588bbd5 5826 /*
ebf348fc
JB		 5827 * We should be on that channel for at least a minimum amount of
5828 * time (10ms) but no longer than the driver supports.
9588bbd5 5829 */
ebf348fc 5830 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
a293911d 5831 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5832 return -EINVAL;
5833
cd6c6598
JB		 5834 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5835 !nl80211_valid_channel_type(info, &channel_type))
5836 return -EINVAL;
9588bbd5
JM		 5837
5838 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5839 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5840 if (chan == NULL)
5841 return -EINVAL;
9588bbd5
JM		 5842
5843 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5844 if (!msg)
5845 return -ENOMEM;
9588bbd5
JM		 5846
5847 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5848 NL80211_CMD_REMAIN_ON_CHANNEL);
5849
5850 if (IS_ERR(hdr)) {
5851 err = PTR_ERR(hdr);
5852 goto free_msg;
5853 }
5854
71bbc994 5855 err = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
9588bbd5
JM		 5856 channel_type, duration, &cookie);
5857
5858 if (err)
5859 goto free_msg;
5860
9360ffd1
DM		 5861 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5862 goto nla_put_failure;
9588bbd5
JM		 5863
5864 genlmsg_end(msg, hdr);
4c476991
JB		 5865
5866 return genlmsg_reply(msg, info);
9588bbd5
JM		 5867
5868 nla_put_failure:
5869 err = -ENOBUFS;
5870 free_msg:
5871 nlmsg_free(msg);
9588bbd5
JM		 5872 return err;
5873}
5874
5875static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5876 struct genl_info *info)
5877{
4c476991 5878 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 5879 struct wireless_dev *wdev = info->user_ptr[1];
9588bbd5 5880 u64 cookie;
9588bbd5
JM		 5881
5882 if (!info->attrs[NL80211_ATTR_COOKIE])
5883 return -EINVAL;
5884
4c476991
JB		 5885 if (!rdev->ops->cancel_remain_on_channel)
5886 return -EOPNOTSUPP;
9588bbd5 5887
9588bbd5
JM		 5888 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5889
71bbc994 5890 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
9588bbd5
JM		 5891}
5892
13ae75b1
JM		 5893static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5894 u8 *rates, u8 rates_len)
5895{
5896 u8 i;
5897 u32 mask = 0;
5898
5899 for (i = 0; i < rates_len; i++) {
5900 int rate = (rates[i] & 0x7f) * 5;
5901 int ridx;
5902 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5903 struct ieee80211_rate *srate =
5904 &sband->bitrates[ridx];
5905 if (rate == srate->bitrate) {
5906 mask |= 1 << ridx;
5907 break;
5908 }
5909 }
5910 if (ridx == sband->n_bitrates)
5911 return 0; /* rate not found */
5912 }
5913
5914 return mask;
5915}
5916
24db78c0
SW		 5917static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5918 u8 *rates, u8 rates_len,
5919 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5920{
5921 u8 i;
5922
5923 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5924
5925 for (i = 0; i < rates_len; i++) {
5926 int ridx, rbit;
5927
5928 ridx = rates[i] / 8;
5929 rbit = BIT(rates[i] % 8);
5930
5931 /* check validity */
910570b5 5932 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 5933 return false;
5934
5935 /* check availability */
5936 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5937 mcs[ridx] |= rbit;
5938 else
5939 return false;
5940 }
5941
5942 return true;
5943}
5944
b54452b0 5945static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5946 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5947 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 5948 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5949 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 5950};
5951
5952static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5953 struct genl_info *info)
5954{
5955 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5957 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5958 int rem, i;
5959 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5960 struct nlattr *tx_rates;
5961 struct ieee80211_supported_band *sband;
5962
5963 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5964 return -EINVAL;
5965
4c476991
JB		 5966 if (!rdev->ops->set_bitrate_mask)
5967 return -EOPNOTSUPP;
13ae75b1
JM		 5968
5969 memset(&mask, 0, sizeof(mask));
5970 /* Default to all rates enabled */
5971 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5972 sband = rdev->wiphy.bands[i];
5973 mask.control[i].legacy =
5974 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 5975 if (sband)
5976 memcpy(mask.control[i].mcs,
5977 sband->ht_cap.mcs.rx_mask,
5978 sizeof(mask.control[i].mcs));
5979 else
5980 memset(mask.control[i].mcs, 0,
5981 sizeof(mask.control[i].mcs));
13ae75b1
JM		 5982 }
5983
5984 /*
5985 * The nested attribute uses enum nl80211_band as the index. This maps
5986 * directly to the enum ieee80211_band values used in cfg80211.
5987 */
24db78c0 5988 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 5989 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5990 {
5991 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5992 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5993 return -EINVAL;
13ae75b1 5994 sband = rdev->wiphy.bands[band];
4c476991
JB		 5995 if (sband == NULL)
5996 return -EINVAL;
13ae75b1
JM		 5997 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5998 nla_len(tx_rates), nl80211_txattr_policy);
5999 if (tb[NL80211_TXRATE_LEGACY]) {
6000 mask.control[band].legacy = rateset_to_mask(
6001 sband,
6002 nla_data(tb[NL80211_TXRATE_LEGACY]),
6003 nla_len(tb[NL80211_TXRATE_LEGACY]));
218d2e26
BS		 6004 if ((mask.control[band].legacy == 0) &&
6005 nla_len(tb[NL80211_TXRATE_LEGACY]))
6006 return -EINVAL;
24db78c0
SW		 6007 }
6008 if (tb[NL80211_TXRATE_MCS]) {
6009 if (!ht_rateset_to_mask(
6010 sband,
6011 nla_data(tb[NL80211_TXRATE_MCS]),
6012 nla_len(tb[NL80211_TXRATE_MCS]),
6013 mask.control[band].mcs))
6014 return -EINVAL;
6015 }
6016
6017 if (mask.control[band].legacy == 0) {
6018 /* don't allow empty legacy rates if HT
6019 * is not even supported. */
6020 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6021 return -EINVAL;
6022
6023 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6024 if (mask.control[band].mcs[i])
6025 break;
6026
6027 /* legacy and mcs rates may not be both empty */
6028 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 6029 return -EINVAL;
13ae75b1
JM		 6030 }
6031 }
6032
4c476991 6033 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 6034}
6035
2e161f78 6036static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6037{
4c476991 6038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6039 struct wireless_dev *wdev = info->user_ptr[1];
2e161f78 6040 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 6041
6042 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6043 return -EINVAL;
6044
2e161f78
JB		 6045 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6046 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 6047
71bbc994
JB		 6048 switch (wdev->iftype) {
6049 case NL80211_IFTYPE_STATION:
6050 case NL80211_IFTYPE_ADHOC:
6051 case NL80211_IFTYPE_P2P_CLIENT:
6052 case NL80211_IFTYPE_AP:
6053 case NL80211_IFTYPE_AP_VLAN:
6054 case NL80211_IFTYPE_MESH_POINT:
6055 case NL80211_IFTYPE_P2P_GO:
6056 break;
6057 default:
4c476991 6058 return -EOPNOTSUPP;
71bbc994 6059 }
026331c4
JM		 6060
6061 /* not much point in registering if we can't reply */
4c476991
JB		 6062 if (!rdev->ops->mgmt_tx)
6063 return -EOPNOTSUPP;
026331c4 6064
71bbc994 6065 return cfg80211_mlme_register_mgmt(wdev, info->snd_pid, frame_type,
026331c4
JM		 6066 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6067 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 6068}
6069
2e161f78 6070static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 6071{
4c476991 6072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6073 struct wireless_dev *wdev = info->user_ptr[1];
026331c4
JM		 6074 struct ieee80211_channel *chan;
6075 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 6076 bool channel_type_valid = false;
026331c4
JM		 6077 u32 freq;
6078 int err;
d64d373f 6079 void *hdr = NULL;
026331c4 6080 u64 cookie;
e247bd90 6081 struct sk_buff *msg = NULL;
f7ca38df 6082 unsigned int wait = 0;
e247bd90
JB		 6083 bool offchan, no_cck, dont_wait_for_ack;
6084
6085 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 6086
6087 if (!info->attrs[NL80211_ATTR_FRAME] ||
6088 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6089 return -EINVAL;
6090
4c476991
JB		 6091 if (!rdev->ops->mgmt_tx)
6092 return -EOPNOTSUPP;
026331c4 6093
71bbc994
JB		 6094 switch (wdev->iftype) {
6095 case NL80211_IFTYPE_STATION:
6096 case NL80211_IFTYPE_ADHOC:
6097 case NL80211_IFTYPE_P2P_CLIENT:
6098 case NL80211_IFTYPE_AP:
6099 case NL80211_IFTYPE_AP_VLAN:
6100 case NL80211_IFTYPE_MESH_POINT:
6101 case NL80211_IFTYPE_P2P_GO:
6102 break;
6103 default:
4c476991 6104 return -EOPNOTSUPP;
71bbc994 6105 }
026331c4 6106
f7ca38df 6107 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 6108 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 6109 return -EINVAL;
6110 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
ebf348fc
JB		 6111
6112 /*
6113 * We should wait on the channel for at least a minimum amount
6114 * of time (10ms) but no longer than the driver supports.
6115 */
6116 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6117 wait > rdev->wiphy.max_remain_on_channel_duration)
6118 return -EINVAL;
6119
f7ca38df
JB		 6120 }
6121
026331c4 6122 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
cd6c6598 6123 if (!nl80211_valid_channel_type(info, &channel_type))
4c476991 6124 return -EINVAL;
252aa631 6125 channel_type_valid = true;
026331c4
JM		 6126 }
6127
f7ca38df
JB		 6128 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6129
7c4ef712
JB		 6130 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6131 return -EINVAL;
6132
e9f935e3
RM		 6133 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6134
026331c4
JM		 6135 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6136 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 6137 if (chan == NULL)
6138 return -EINVAL;
026331c4 6139
e247bd90
JB		 6140 if (!dont_wait_for_ack) {
6141 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6142 if (!msg)
6143 return -ENOMEM;
026331c4 6144
e247bd90
JB		 6145 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6146 NL80211_CMD_FRAME);
026331c4 6147
e247bd90
JB		 6148 if (IS_ERR(hdr)) {
6149 err = PTR_ERR(hdr);
6150 goto free_msg;
6151 }
026331c4 6152 }
e247bd90 6153
71bbc994 6154 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
f7ca38df 6155 channel_type_valid, wait,
2e161f78
JB		 6156 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6157 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 6158 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 6159 if (err)
6160 goto free_msg;
6161
e247bd90 6162 if (msg) {
9360ffd1
DM		 6163 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6164 goto nla_put_failure;
026331c4 6165
e247bd90
JB		 6166 genlmsg_end(msg, hdr);
6167 return genlmsg_reply(msg, info);
6168 }
6169
6170 return 0;
026331c4
JM		 6171
6172 nla_put_failure:
6173 err = -ENOBUFS;
6174 free_msg:
6175 nlmsg_free(msg);
026331c4
JM		 6176 return err;
6177}
6178
f7ca38df
JB		 6179static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6180{
6181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
71bbc994 6182 struct wireless_dev *wdev = info->user_ptr[1];
f7ca38df
JB		 6183 u64 cookie;
6184
6185 if (!info->attrs[NL80211_ATTR_COOKIE])
6186 return -EINVAL;
6187
6188 if (!rdev->ops->mgmt_tx_cancel_wait)
6189 return -EOPNOTSUPP;
6190
71bbc994
JB		 6191 switch (wdev->iftype) {
6192 case NL80211_IFTYPE_STATION:
6193 case NL80211_IFTYPE_ADHOC:
6194 case NL80211_IFTYPE_P2P_CLIENT:
6195 case NL80211_IFTYPE_AP:
6196 case NL80211_IFTYPE_AP_VLAN:
6197 case NL80211_IFTYPE_P2P_GO:
6198 break;
6199 default:
f7ca38df 6200 return -EOPNOTSUPP;
71bbc994 6201 }
f7ca38df
JB		 6202
6203 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6204
71bbc994 6205 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie);
f7ca38df
JB		 6206}
6207
ffb9eb3d
KV		 6208static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6209{
4c476991 6210 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 6211 struct wireless_dev *wdev;
4c476991 6212 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6213 u8 ps_state;
6214 bool state;
6215 int err;
6216
4c476991
JB		 6217 if (!info->attrs[NL80211_ATTR_PS_STATE])
6218 return -EINVAL;
ffb9eb3d
KV		 6219
6220 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6221
4c476991
JB		 6222 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6223 return -EINVAL;
ffb9eb3d
KV		 6224
6225 wdev = dev->ieee80211_ptr;
6226
4c476991
JB		 6227 if (!rdev->ops->set_power_mgmt)
6228 return -EOPNOTSUPP;
ffb9eb3d
KV		 6229
6230 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6231
6232 if (state == wdev->ps)
4c476991 6233 return 0;
ffb9eb3d 6234
4c476991
JB		 6235 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6236 wdev->ps_timeout);
6237 if (!err)
6238 wdev->ps = state;
ffb9eb3d
KV		 6239 return err;
6240}
6241
6242static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6243{
4c476991 6244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 6245 enum nl80211_ps_state ps_state;
6246 struct wireless_dev *wdev;
4c476991 6247 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 6248 struct sk_buff *msg;
6249 void *hdr;
6250 int err;
6251
ffb9eb3d
KV		 6252 wdev = dev->ieee80211_ptr;
6253
4c476991
JB		 6254 if (!rdev->ops->set_power_mgmt)
6255 return -EOPNOTSUPP;
ffb9eb3d
KV		 6256
6257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 6258 if (!msg)
6259 return -ENOMEM;
ffb9eb3d
KV		 6260
6261 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6262 NL80211_CMD_GET_POWER_SAVE);
6263 if (!hdr) {
4c476991 6264 err = -ENOBUFS;
ffb9eb3d
KV		 6265 goto free_msg;
6266 }
6267
6268 if (wdev->ps)
6269 ps_state = NL80211_PS_ENABLED;
6270 else
6271 ps_state = NL80211_PS_DISABLED;
6272
9360ffd1
DM		 6273 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6274 goto nla_put_failure;
ffb9eb3d
KV		 6275
6276 genlmsg_end(msg, hdr);
4c476991 6277 return genlmsg_reply(msg, info);
ffb9eb3d 6278
4c476991 6279 nla_put_failure:
ffb9eb3d 6280 err = -ENOBUFS;
4c476991 6281 free_msg:
ffb9eb3d 6282 nlmsg_free(msg);
ffb9eb3d
KV		 6283 return err;
6284}
6285
d6dc1a38
JO		 6286static struct nla_policy
6287nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6288 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6289 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6290 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
84f10708
TP		 6291 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6292 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6293 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
d6dc1a38
JO		 6294};
6295
84f10708
TP		 6296static int nl80211_set_cqm_txe(struct genl_info *info,
6297 u32 rate, u32 pkts, u32 intvl)
6298{
6299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6300 struct wireless_dev *wdev;
6301 struct net_device *dev = info->user_ptr[1];
6302
6303 if ((rate < 0 || rate > 100) ||
6304 (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
6305 return -EINVAL;
6306
6307 wdev = dev->ieee80211_ptr;
6308
6309 if (!rdev->ops->set_cqm_txe_config)
6310 return -EOPNOTSUPP;
6311
6312 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6313 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6314 return -EOPNOTSUPP;
6315
6316 return rdev->ops->set_cqm_txe_config(wdev->wiphy, dev,
6317 rate, pkts, intvl);
6318}
6319
d6dc1a38
JO		 6320static int nl80211_set_cqm_rssi(struct genl_info *info,
6321 s32 threshold, u32 hysteresis)
6322{
4c476991 6323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 6324 struct wireless_dev *wdev;
4c476991 6325 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 6326
6327 if (threshold > 0)
6328 return -EINVAL;
6329
d6dc1a38
JO		 6330 wdev = dev->ieee80211_ptr;
6331
4c476991
JB		 6332 if (!rdev->ops->set_cqm_rssi_config)
6333 return -EOPNOTSUPP;
d6dc1a38 6334
074ac8df 6335 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 6336 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6337 return -EOPNOTSUPP;
d6dc1a38 6338
4c476991
JB		 6339 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6340 threshold, hysteresis);
d6dc1a38
JO		 6341}
6342
6343static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6344{
6345 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6346 struct nlattr *cqm;
6347 int err;
6348
6349 cqm = info->attrs[NL80211_ATTR_CQM];
6350 if (!cqm) {
6351 err = -EINVAL;
6352 goto out;
6353 }
6354
6355 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6356 nl80211_attr_cqm_policy);
6357 if (err)
6358 goto out;
6359
6360 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6361 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6362 s32 threshold;
6363 u32 hysteresis;
6364 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6365 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6366 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
84f10708
TP		 6367 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6368 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6369 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6370 u32 rate, pkts, intvl;
6371 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6372 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6373 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6374 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
d6dc1a38
JO		 6375 } else
6376 err = -EINVAL;
6377
6378out:
6379 return err;
6380}
6381
29cbe68c
JB		 6382static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6383{
6384 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6385 struct net_device *dev = info->user_ptr[1];
6386 struct mesh_config cfg;
c80d545d 6387 struct mesh_setup setup;
29cbe68c
JB		 6388 int err;
6389
6390 /* start with default */
6391 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 6392 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 6393
24bdd9f4 6394 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 6395 /* and parse parameters if given */
24bdd9f4 6396 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 6397 if (err)
6398 return err;
6399 }
6400
6401 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6402 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6403 return -EINVAL;
6404
c80d545d
JC		 6405 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6406 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6407
4bb62344
CYY		 6408 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6409 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6410 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6411 return -EINVAL;
6412
c80d545d
JC		 6413 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6414 /* parse additional setup parameters if given */
6415 err = nl80211_parse_mesh_setup(info, &setup);
6416 if (err)
6417 return err;
6418 }
6419
cc1d2806
JB		 6420 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6421 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6422
6423 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6424 !nl80211_valid_channel_type(info, &channel_type))
6425 return -EINVAL;
6426
6427 setup.channel = rdev_freq_to_chan(rdev,
6428 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6429 channel_type);
6430 if (!setup.channel)
6431 return -EINVAL;
6432 setup.channel_type = channel_type;
6433 } else {
6434 /* cfg80211_join_mesh() will sort it out */
6435 setup.channel = NULL;
6436 }
6437
c80d545d 6438 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 6439}
6440
6441static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6442{
6443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6444 struct net_device *dev = info->user_ptr[1];
6445
6446 return cfg80211_leave_mesh(rdev, dev);
6447}
6448
dfb89c56 6449#ifdef CONFIG_PM
ff1b6e69
JB		 6450static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6451{
6452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6453 struct sk_buff *msg;
6454 void *hdr;
6455
6456 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6457 return -EOPNOTSUPP;
6458
6459 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6460 if (!msg)
6461 return -ENOMEM;
6462
6463 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6464 NL80211_CMD_GET_WOWLAN);
6465 if (!hdr)
6466 goto nla_put_failure;
6467
6468 if (rdev->wowlan) {
6469 struct nlattr *nl_wowlan;
6470
6471 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6472 if (!nl_wowlan)
6473 goto nla_put_failure;
6474
9360ffd1
DM		 6475 if ((rdev->wowlan->any &&
6476 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6477 (rdev->wowlan->disconnect &&
6478 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6479 (rdev->wowlan->magic_pkt &&
6480 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6481 (rdev->wowlan->gtk_rekey_failure &&
6482 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6483 (rdev->wowlan->eap_identity_req &&
6484 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6485 (rdev->wowlan->four_way_handshake &&
6486 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6487 (rdev->wowlan->rfkill_release &&
6488 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6489 goto nla_put_failure;
ff1b6e69
JB		 6490 if (rdev->wowlan->n_patterns) {
6491 struct nlattr *nl_pats, *nl_pat;
6492 int i, pat_len;
6493
6494 nl_pats = nla_nest_start(msg,
6495 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6496 if (!nl_pats)
6497 goto nla_put_failure;
6498
6499 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6500 nl_pat = nla_nest_start(msg, i + 1);
6501 if (!nl_pat)
6502 goto nla_put_failure;
6503 pat_len = rdev->wowlan->patterns[i].pattern_len;
9360ffd1
DM		 6504 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6505 DIV_ROUND_UP(pat_len, 8),
6506 rdev->wowlan->patterns[i].mask) ||
6507 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6508 pat_len,
6509 rdev->wowlan->patterns[i].pattern))
6510 goto nla_put_failure;
ff1b6e69
JB		 6511 nla_nest_end(msg, nl_pat);
6512 }
6513 nla_nest_end(msg, nl_pats);
6514 }
6515
6516 nla_nest_end(msg, nl_wowlan);
6517 }
6518
6519 genlmsg_end(msg, hdr);
6520 return genlmsg_reply(msg, info);
6521
6522nla_put_failure:
6523 nlmsg_free(msg);
6524 return -ENOBUFS;
6525}
6526
6527static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6528{
6529 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6530 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
ff1b6e69 6531 struct cfg80211_wowlan new_triggers = {};
ae33bd81 6532 struct cfg80211_wowlan *ntrig;
ff1b6e69
JB		 6533 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6534 int err, i;
6d52563f 6535 bool prev_enabled = rdev->wowlan;
ff1b6e69
JB		 6536
6537 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6538 return -EOPNOTSUPP;
6539
ae33bd81
JB		 6540 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6541 cfg80211_rdev_free_wowlan(rdev);
6542 rdev->wowlan = NULL;
6543 goto set_wakeup;
6544 }
ff1b6e69
JB		 6545
6546 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6547 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6548 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6549 nl80211_wowlan_policy);
6550 if (err)
6551 return err;
6552
6553 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6554 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6555 return -EINVAL;
6556 new_triggers.any = true;
6557 }
6558
6559 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6560 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6561 return -EINVAL;
6562 new_triggers.disconnect = true;
6563 }
6564
6565 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6566 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6567 return -EINVAL;
6568 new_triggers.magic_pkt = true;
6569 }
6570
77dbbb13
JB		 6571 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6572 return -EINVAL;
6573
6574 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6575 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6576 return -EINVAL;
6577 new_triggers.gtk_rekey_failure = true;
6578 }
6579
6580 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6581 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6582 return -EINVAL;
6583 new_triggers.eap_identity_req = true;
6584 }
6585
6586 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6587 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6588 return -EINVAL;
6589 new_triggers.four_way_handshake = true;
6590 }
6591
6592 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6593 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6594 return -EINVAL;
6595 new_triggers.rfkill_release = true;
6596 }
6597
ff1b6e69
JB		 6598 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6599 struct nlattr *pat;
6600 int n_patterns = 0;
6601 int rem, pat_len, mask_len;
6602 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6603
6604 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6605 rem)
6606 n_patterns++;
6607 if (n_patterns > wowlan->n_patterns)
6608 return -EINVAL;
6609
6610 new_triggers.patterns = kcalloc(n_patterns,
6611 sizeof(new_triggers.patterns[0]),
6612 GFP_KERNEL);
6613 if (!new_triggers.patterns)
6614 return -ENOMEM;
6615
6616 new_triggers.n_patterns = n_patterns;
6617 i = 0;
6618
6619 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6620 rem) {
6621 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6622 nla_data(pat), nla_len(pat), NULL);
6623 err = -EINVAL;
6624 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6625 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6626 goto error;
6627 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6628 mask_len = DIV_ROUND_UP(pat_len, 8);
6629 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6630 mask_len)
6631 goto error;
6632 if (pat_len > wowlan->pattern_max_len ||
6633 pat_len < wowlan->pattern_min_len)
6634 goto error;
6635
6636 new_triggers.patterns[i].mask =
6637 kmalloc(mask_len + pat_len, GFP_KERNEL);
6638 if (!new_triggers.patterns[i].mask) {
6639 err = -ENOMEM;
6640 goto error;
6641 }
6642 new_triggers.patterns[i].pattern =
6643 new_triggers.patterns[i].mask + mask_len;
6644 memcpy(new_triggers.patterns[i].mask,
6645 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6646 mask_len);
6647 new_triggers.patterns[i].pattern_len = pat_len;
6648 memcpy(new_triggers.patterns[i].pattern,
6649 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6650 pat_len);
6651 i++;
6652 }
6653 }
6654
ae33bd81
JB		 6655 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6656 if (!ntrig) {
6657 err = -ENOMEM;
6658 goto error;
ff1b6e69 6659 }
ae33bd81
JB		 6660 cfg80211_rdev_free_wowlan(rdev);
6661 rdev->wowlan = ntrig;
ff1b6e69 6662
ae33bd81 6663 set_wakeup:
6d52563f
JB		 6664 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6665 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6666
ff1b6e69
JB		 6667 return 0;
6668 error:
6669 for (i = 0; i < new_triggers.n_patterns; i++)
6670 kfree(new_triggers.patterns[i].mask);
6671 kfree(new_triggers.patterns);
6672 return err;
6673}
dfb89c56 6674#endif
ff1b6e69 6675
e5497d76
JB		 6676static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6677{
6678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6679 struct net_device *dev = info->user_ptr[1];
6680 struct wireless_dev *wdev = dev->ieee80211_ptr;
6681 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6682 struct cfg80211_gtk_rekey_data rekey_data;
6683 int err;
6684
6685 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6686 return -EINVAL;
6687
6688 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6689 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6690 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6691 nl80211_rekey_policy);
6692 if (err)
6693 return err;
6694
6695 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6696 return -ERANGE;
6697 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6698 return -ERANGE;
6699 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6700 return -ERANGE;
6701
6702 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6703 NL80211_KEK_LEN);
6704 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6705 NL80211_KCK_LEN);
6706 memcpy(rekey_data.replay_ctr,
6707 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6708 NL80211_REPLAY_CTR_LEN);
6709
6710 wdev_lock(wdev);
6711 if (!wdev->current_bss) {
6712 err = -ENOTCONN;
6713 goto out;
6714 }
6715
6716 if (!rdev->ops->set_rekey_data) {
6717 err = -EOPNOTSUPP;
6718 goto out;
6719 }
6720
6721 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6722 out:
6723 wdev_unlock(wdev);
6724 return err;
6725}
6726
28946da7
JB		 6727static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6728 struct genl_info *info)
6729{
6730 struct net_device *dev = info->user_ptr[1];
6731 struct wireless_dev *wdev = dev->ieee80211_ptr;
6732
6733 if (wdev->iftype != NL80211_IFTYPE_AP &&
6734 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6735 return -EINVAL;
6736
6737 if (wdev->ap_unexpected_nlpid)
6738 return -EBUSY;
6739
6740 wdev->ap_unexpected_nlpid = info->snd_pid;
6741 return 0;
6742}
6743
7f6cf311
JB		 6744static int nl80211_probe_client(struct sk_buff *skb,
6745 struct genl_info *info)
6746{
6747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6748 struct net_device *dev = info->user_ptr[1];
6749 struct wireless_dev *wdev = dev->ieee80211_ptr;
6750 struct sk_buff *msg;
6751 void *hdr;
6752 const u8 *addr;
6753 u64 cookie;
6754 int err;
6755
6756 if (wdev->iftype != NL80211_IFTYPE_AP &&
6757 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6758 return -EOPNOTSUPP;
6759
6760 if (!info->attrs[NL80211_ATTR_MAC])
6761 return -EINVAL;
6762
6763 if (!rdev->ops->probe_client)
6764 return -EOPNOTSUPP;
6765
6766 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6767 if (!msg)
6768 return -ENOMEM;
6769
6770 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6771 NL80211_CMD_PROBE_CLIENT);
6772
6773 if (IS_ERR(hdr)) {
6774 err = PTR_ERR(hdr);
6775 goto free_msg;
6776 }
6777
6778 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6779
6780 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6781 if (err)
6782 goto free_msg;
6783
9360ffd1
DM		 6784 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6785 goto nla_put_failure;
7f6cf311
JB		 6786
6787 genlmsg_end(msg, hdr);
6788
6789 return genlmsg_reply(msg, info);
6790
6791 nla_put_failure:
6792 err = -ENOBUFS;
6793 free_msg:
6794 nlmsg_free(msg);
6795 return err;
6796}
6797
5e760230
JB		 6798static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6799{
6800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6801
6802 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6803 return -EOPNOTSUPP;
6804
6805 if (rdev->ap_beacons_nlpid)
6806 return -EBUSY;
6807
6808 rdev->ap_beacons_nlpid = info->snd_pid;
6809
6810 return 0;
6811}
6812
4c476991
JB		 6813#define NL80211_FLAG_NEED_WIPHY 0x01
6814#define NL80211_FLAG_NEED_NETDEV 0x02
6815#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6816#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6817#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6818 NL80211_FLAG_CHECK_NETDEV_UP)
1bf614ef
JB		 6819#define NL80211_FLAG_NEED_WDEV 0x10
6820/* If a netdev is associated, it must be UP */
6821#define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
6822 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6823
6824static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6825 struct genl_info *info)
6826{
6827 struct cfg80211_registered_device *rdev;
89a54e48 6828 struct wireless_dev *wdev;
4c476991 6829 struct net_device *dev;
4c476991
JB		 6830 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6831
6832 if (rtnl)
6833 rtnl_lock();
6834
6835 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4f7eff10 6836 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
4c476991
JB		 6837 if (IS_ERR(rdev)) {
6838 if (rtnl)
6839 rtnl_unlock();
6840 return PTR_ERR(rdev);
6841 }
6842 info->user_ptr[0] = rdev;
1bf614ef
JB		 6843 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
6844 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
89a54e48
JB		 6845 mutex_lock(&cfg80211_mutex);
6846 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
6847 info->attrs);
6848 if (IS_ERR(wdev)) {
6849 mutex_unlock(&cfg80211_mutex);
4c476991
JB		 6850 if (rtnl)
6851 rtnl_unlock();
89a54e48 6852 return PTR_ERR(wdev);
4c476991 6853 }
89a54e48 6854
89a54e48
JB		 6855 dev = wdev->netdev;
6856 rdev = wiphy_to_dev(wdev->wiphy);
6857
1bf614ef
JB		 6858 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6859 if (!dev) {
6860 mutex_unlock(&cfg80211_mutex);
6861 if (rtnl)
6862 rtnl_unlock();
6863 return -EINVAL;
6864 }
6865
6866 info->user_ptr[1] = dev;
6867 } else {
6868 info->user_ptr[1] = wdev;
41265714 6869 }
1bf614ef
JB		 6870
6871 if (dev) {
6872 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6873 !netif_running(dev)) {
6874 mutex_unlock(&cfg80211_mutex);
6875 if (rtnl)
6876 rtnl_unlock();
6877 return -ENETDOWN;
6878 }
6879
6880 dev_hold(dev);
41265714 6881 }
89a54e48 6882
89a54e48
JB		 6883 cfg80211_lock_rdev(rdev);
6884
6885 mutex_unlock(&cfg80211_mutex);
6886
4c476991 6887 info->user_ptr[0] = rdev;
4c476991
JB		 6888 }
6889
6890 return 0;
6891}
6892
6893static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6894 struct genl_info *info)
6895{
6896 if (info->user_ptr[0])
6897 cfg80211_unlock_rdev(info->user_ptr[0]);
1bf614ef
JB		 6898 if (info->user_ptr[1]) {
6899 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6900 struct wireless_dev *wdev = info->user_ptr[1];
6901
6902 if (wdev->netdev)
6903 dev_put(wdev->netdev);
6904 } else {
6905 dev_put(info->user_ptr[1]);
6906 }
6907 }
4c476991
JB		 6908 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6909 rtnl_unlock();
6910}
6911
55682965
JB		 6912static struct genl_ops nl80211_ops[] = {
6913 {
6914 .cmd = NL80211_CMD_GET_WIPHY,
6915 .doit = nl80211_get_wiphy,
6916 .dumpit = nl80211_dump_wiphy,
6917 .policy = nl80211_policy,
6918 /* can be retrieved by unprivileged users */
4c476991 6919 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6920 },
6921 {
6922 .cmd = NL80211_CMD_SET_WIPHY,
6923 .doit = nl80211_set_wiphy,
6924 .policy = nl80211_policy,
6925 .flags = GENL_ADMIN_PERM,
4c476991 6926 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6927 },
6928 {
6929 .cmd = NL80211_CMD_GET_INTERFACE,
6930 .doit = nl80211_get_interface,
6931 .dumpit = nl80211_dump_interface,
6932 .policy = nl80211_policy,
6933 /* can be retrieved by unprivileged users */
72fb2abc 6934 .internal_flags = NL80211_FLAG_NEED_WDEV,
55682965
JB		 6935 },
6936 {
6937 .cmd = NL80211_CMD_SET_INTERFACE,
6938 .doit = nl80211_set_interface,
6939 .policy = nl80211_policy,
6940 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6941 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6942 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6943 },
6944 {
6945 .cmd = NL80211_CMD_NEW_INTERFACE,
6946 .doit = nl80211_new_interface,
6947 .policy = nl80211_policy,
6948 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6949 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6950 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6951 },
6952 {
6953 .cmd = NL80211_CMD_DEL_INTERFACE,
6954 .doit = nl80211_del_interface,
6955 .policy = nl80211_policy,
41ade00f 6956 .flags = GENL_ADMIN_PERM,
84efbb84 6957 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 6958 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6959 },
6960 {
6961 .cmd = NL80211_CMD_GET_KEY,
6962 .doit = nl80211_get_key,
6963 .policy = nl80211_policy,
6964 .flags = GENL_ADMIN_PERM,
2b5f8b0b 6965 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6966 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6967 },
6968 {
6969 .cmd = NL80211_CMD_SET_KEY,
6970 .doit = nl80211_set_key,
6971 .policy = nl80211_policy,
6972 .flags = GENL_ADMIN_PERM,
41265714 6973 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6974 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6975 },
6976 {
6977 .cmd = NL80211_CMD_NEW_KEY,
6978 .doit = nl80211_new_key,
6979 .policy = nl80211_policy,
6980 .flags = GENL_ADMIN_PERM,
41265714 6981 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6982 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6983 },
6984 {
6985 .cmd = NL80211_CMD_DEL_KEY,
6986 .doit = nl80211_del_key,
6987 .policy = nl80211_policy,
55682965 6988 .flags = GENL_ADMIN_PERM,
41265714 6989 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6990 NL80211_FLAG_NEED_RTNL,
55682965 6991 },
ed1b6cc7
JB		 6992 {
6993 .cmd = NL80211_CMD_SET_BEACON,
6994 .policy = nl80211_policy,
6995 .flags = GENL_ADMIN_PERM,
8860020e 6996 .doit = nl80211_set_beacon,
2b5f8b0b 6997 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6998 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6999 },
7000 {
8860020e 7001 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 7002 .policy = nl80211_policy,
7003 .flags = GENL_ADMIN_PERM,
8860020e 7004 .doit = nl80211_start_ap,
2b5f8b0b 7005 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7006 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 7007 },
7008 {
8860020e 7009 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 7010 .policy = nl80211_policy,
7011 .flags = GENL_ADMIN_PERM,
8860020e 7012 .doit = nl80211_stop_ap,
2b5f8b0b 7013 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7014 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 7015 },
5727ef1b
JB		 7016 {
7017 .cmd = NL80211_CMD_GET_STATION,
7018 .doit = nl80211_get_station,
2ec600d6 7019 .dumpit = nl80211_dump_station,
5727ef1b 7020 .policy = nl80211_policy,
4c476991
JB		 7021 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7022 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7023 },
7024 {
7025 .cmd = NL80211_CMD_SET_STATION,
7026 .doit = nl80211_set_station,
7027 .policy = nl80211_policy,
7028 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7029 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7030 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7031 },
7032 {
7033 .cmd = NL80211_CMD_NEW_STATION,
7034 .doit = nl80211_new_station,
7035 .policy = nl80211_policy,
7036 .flags = GENL_ADMIN_PERM,
41265714 7037 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7038 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 7039 },
7040 {
7041 .cmd = NL80211_CMD_DEL_STATION,
7042 .doit = nl80211_del_station,
7043 .policy = nl80211_policy,
2ec600d6 7044 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7045 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7046 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7047 },
7048 {
7049 .cmd = NL80211_CMD_GET_MPATH,
7050 .doit = nl80211_get_mpath,
7051 .dumpit = nl80211_dump_mpath,
7052 .policy = nl80211_policy,
7053 .flags = GENL_ADMIN_PERM,
41265714 7054 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7055 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7056 },
7057 {
7058 .cmd = NL80211_CMD_SET_MPATH,
7059 .doit = nl80211_set_mpath,
7060 .policy = nl80211_policy,
7061 .flags = GENL_ADMIN_PERM,
41265714 7062 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7063 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7064 },
7065 {
7066 .cmd = NL80211_CMD_NEW_MPATH,
7067 .doit = nl80211_new_mpath,
7068 .policy = nl80211_policy,
7069 .flags = GENL_ADMIN_PERM,
41265714 7070 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7071 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 7072 },
7073 {
7074 .cmd = NL80211_CMD_DEL_MPATH,
7075 .doit = nl80211_del_mpath,
7076 .policy = nl80211_policy,
9f1ba906 7077 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7078 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7079 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 7080 },
7081 {
7082 .cmd = NL80211_CMD_SET_BSS,
7083 .doit = nl80211_set_bss,
7084 .policy = nl80211_policy,
b2e1b302 7085 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7086 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7087 NL80211_FLAG_NEED_RTNL,
b2e1b302 7088 },
f130347c
LR		 7089 {
7090 .cmd = NL80211_CMD_GET_REG,
7091 .doit = nl80211_get_reg,
7092 .policy = nl80211_policy,
7093 /* can be retrieved by unprivileged users */
7094 },
b2e1b302
LR		 7095 {
7096 .cmd = NL80211_CMD_SET_REG,
7097 .doit = nl80211_set_reg,
7098 .policy = nl80211_policy,
7099 .flags = GENL_ADMIN_PERM,
7100 },
7101 {
7102 .cmd = NL80211_CMD_REQ_SET_REG,
7103 .doit = nl80211_req_set_reg,
7104 .policy = nl80211_policy,
93da9cc1 7105 .flags = GENL_ADMIN_PERM,
7106 },
7107 {
24bdd9f4
JC		 7108 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7109 .doit = nl80211_get_mesh_config,
93da9cc1 7110 .policy = nl80211_policy,
7111 /* can be retrieved by unprivileged users */
2b5f8b0b 7112 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7113 NL80211_FLAG_NEED_RTNL,
93da9cc1 7114 },
7115 {
24bdd9f4
JC		 7116 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7117 .doit = nl80211_update_mesh_config,
93da9cc1 7118 .policy = nl80211_policy,
9aed3cc1 7119 .flags = GENL_ADMIN_PERM,
29cbe68c 7120 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7121 NL80211_FLAG_NEED_RTNL,
9aed3cc1 7122 },
2a519311
JB		 7123 {
7124 .cmd = NL80211_CMD_TRIGGER_SCAN,
7125 .doit = nl80211_trigger_scan,
7126 .policy = nl80211_policy,
7127 .flags = GENL_ADMIN_PERM,
fd014284 7128 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7129 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 7130 },
7131 {
7132 .cmd = NL80211_CMD_GET_SCAN,
7133 .policy = nl80211_policy,
7134 .dumpit = nl80211_dump_scan,
7135 },
807f8a8c
LC		 7136 {
7137 .cmd = NL80211_CMD_START_SCHED_SCAN,
7138 .doit = nl80211_start_sched_scan,
7139 .policy = nl80211_policy,
7140 .flags = GENL_ADMIN_PERM,
7141 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7142 NL80211_FLAG_NEED_RTNL,
7143 },
7144 {
7145 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7146 .doit = nl80211_stop_sched_scan,
7147 .policy = nl80211_policy,
7148 .flags = GENL_ADMIN_PERM,
7149 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7150 NL80211_FLAG_NEED_RTNL,
7151 },
636a5d36
JM		 7152 {
7153 .cmd = NL80211_CMD_AUTHENTICATE,
7154 .doit = nl80211_authenticate,
7155 .policy = nl80211_policy,
7156 .flags = GENL_ADMIN_PERM,
41265714 7157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7158 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7159 },
7160 {
7161 .cmd = NL80211_CMD_ASSOCIATE,
7162 .doit = nl80211_associate,
7163 .policy = nl80211_policy,
7164 .flags = GENL_ADMIN_PERM,
41265714 7165 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7166 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7167 },
7168 {
7169 .cmd = NL80211_CMD_DEAUTHENTICATE,
7170 .doit = nl80211_deauthenticate,
7171 .policy = nl80211_policy,
7172 .flags = GENL_ADMIN_PERM,
41265714 7173 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7174 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 7175 },
7176 {
7177 .cmd = NL80211_CMD_DISASSOCIATE,
7178 .doit = nl80211_disassociate,
7179 .policy = nl80211_policy,
7180 .flags = GENL_ADMIN_PERM,
41265714 7181 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7182 NL80211_FLAG_NEED_RTNL,
636a5d36 7183 },
04a773ad
JB		 7184 {
7185 .cmd = NL80211_CMD_JOIN_IBSS,
7186 .doit = nl80211_join_ibss,
7187 .policy = nl80211_policy,
7188 .flags = GENL_ADMIN_PERM,
41265714 7189 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7190 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 7191 },
7192 {
7193 .cmd = NL80211_CMD_LEAVE_IBSS,
7194 .doit = nl80211_leave_ibss,
7195 .policy = nl80211_policy,
7196 .flags = GENL_ADMIN_PERM,
41265714 7197 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7198 NL80211_FLAG_NEED_RTNL,
04a773ad 7199 },
aff89a9b
JB		 7200#ifdef CONFIG_NL80211_TESTMODE
7201 {
7202 .cmd = NL80211_CMD_TESTMODE,
7203 .doit = nl80211_testmode_do,
71063f0e 7204 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 7205 .policy = nl80211_policy,
7206 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7207 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7208 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 7209 },
7210#endif
b23aa676
SO		 7211 {
7212 .cmd = NL80211_CMD_CONNECT,
7213 .doit = nl80211_connect,
7214 .policy = nl80211_policy,
7215 .flags = GENL_ADMIN_PERM,
41265714 7216 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7217 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 7218 },
7219 {
7220 .cmd = NL80211_CMD_DISCONNECT,
7221 .doit = nl80211_disconnect,
7222 .policy = nl80211_policy,
7223 .flags = GENL_ADMIN_PERM,
41265714 7224 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7225 NL80211_FLAG_NEED_RTNL,
b23aa676 7226 },
463d0183
JB		 7227 {
7228 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7229 .doit = nl80211_wiphy_netns,
7230 .policy = nl80211_policy,
7231 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7232 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7233 NL80211_FLAG_NEED_RTNL,
463d0183 7234 },
61fa713c
HS		 7235 {
7236 .cmd = NL80211_CMD_GET_SURVEY,
7237 .policy = nl80211_policy,
7238 .dumpit = nl80211_dump_survey,
7239 },
67fbb16b
SO		 7240 {
7241 .cmd = NL80211_CMD_SET_PMKSA,
7242 .doit = nl80211_setdel_pmksa,
7243 .policy = nl80211_policy,
7244 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7246 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7247 },
7248 {
7249 .cmd = NL80211_CMD_DEL_PMKSA,
7250 .doit = nl80211_setdel_pmksa,
7251 .policy = nl80211_policy,
7252 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7253 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7254 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 7255 },
7256 {
7257 .cmd = NL80211_CMD_FLUSH_PMKSA,
7258 .doit = nl80211_flush_pmksa,
7259 .policy = nl80211_policy,
7260 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7261 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 7262 NL80211_FLAG_NEED_RTNL,
67fbb16b 7263 },
9588bbd5
JM		 7264 {
7265 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7266 .doit = nl80211_remain_on_channel,
7267 .policy = nl80211_policy,
7268 .flags = GENL_ADMIN_PERM,
71bbc994 7269 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7270 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 7271 },
7272 {
7273 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7274 .doit = nl80211_cancel_remain_on_channel,
7275 .policy = nl80211_policy,
7276 .flags = GENL_ADMIN_PERM,
71bbc994 7277 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7278 NL80211_FLAG_NEED_RTNL,
9588bbd5 7279 },
13ae75b1
JM		 7280 {
7281 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7282 .doit = nl80211_set_tx_bitrate_mask,
7283 .policy = nl80211_policy,
7284 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7285 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7286 NL80211_FLAG_NEED_RTNL,
13ae75b1 7287 },
026331c4 7288 {
2e161f78
JB		 7289 .cmd = NL80211_CMD_REGISTER_FRAME,
7290 .doit = nl80211_register_mgmt,
026331c4
JM		 7291 .policy = nl80211_policy,
7292 .flags = GENL_ADMIN_PERM,
71bbc994 7293 .internal_flags = NL80211_FLAG_NEED_WDEV |
4c476991 7294 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 7295 },
7296 {
2e161f78
JB		 7297 .cmd = NL80211_CMD_FRAME,
7298 .doit = nl80211_tx_mgmt,
026331c4 7299 .policy = nl80211_policy,
f7ca38df 7300 .flags = GENL_ADMIN_PERM,
71bbc994 7301 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
f7ca38df
JB		 7302 NL80211_FLAG_NEED_RTNL,
7303 },
7304 {
7305 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7306 .doit = nl80211_tx_mgmt_cancel_wait,
7307 .policy = nl80211_policy,
026331c4 7308 .flags = GENL_ADMIN_PERM,
71bbc994 7309 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
4c476991 7310 NL80211_FLAG_NEED_RTNL,
026331c4 7311 },
ffb9eb3d
KV		 7312 {
7313 .cmd = NL80211_CMD_SET_POWER_SAVE,
7314 .doit = nl80211_set_power_save,
7315 .policy = nl80211_policy,
7316 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7317 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7318 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 7319 },
7320 {
7321 .cmd = NL80211_CMD_GET_POWER_SAVE,
7322 .doit = nl80211_get_power_save,
7323 .policy = nl80211_policy,
7324 /* can be retrieved by unprivileged users */
4c476991
JB		 7325 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7326 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 7327 },
d6dc1a38
JO		 7328 {
7329 .cmd = NL80211_CMD_SET_CQM,
7330 .doit = nl80211_set_cqm,
7331 .policy = nl80211_policy,
7332 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7333 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7334 NL80211_FLAG_NEED_RTNL,
d6dc1a38 7335 },
f444de05
JB		 7336 {
7337 .cmd = NL80211_CMD_SET_CHANNEL,
7338 .doit = nl80211_set_channel,
7339 .policy = nl80211_policy,
7340 .flags = GENL_ADMIN_PERM,
4c476991
JB		 7341 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7342 NL80211_FLAG_NEED_RTNL,
f444de05 7343 },
e8347eba
BJ		 7344 {
7345 .cmd = NL80211_CMD_SET_WDS_PEER,
7346 .doit = nl80211_set_wds_peer,
7347 .policy = nl80211_policy,
7348 .flags = GENL_ADMIN_PERM,
43b19952
JB		 7349 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7350 NL80211_FLAG_NEED_RTNL,
e8347eba 7351 },
29cbe68c
JB		 7352 {
7353 .cmd = NL80211_CMD_JOIN_MESH,
7354 .doit = nl80211_join_mesh,
7355 .policy = nl80211_policy,
7356 .flags = GENL_ADMIN_PERM,
7357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7358 NL80211_FLAG_NEED_RTNL,
7359 },
7360 {
7361 .cmd = NL80211_CMD_LEAVE_MESH,
7362 .doit = nl80211_leave_mesh,
7363 .policy = nl80211_policy,
7364 .flags = GENL_ADMIN_PERM,
7365 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7366 NL80211_FLAG_NEED_RTNL,
7367 },
dfb89c56 7368#ifdef CONFIG_PM
ff1b6e69
JB		 7369 {
7370 .cmd = NL80211_CMD_GET_WOWLAN,
7371 .doit = nl80211_get_wowlan,
7372 .policy = nl80211_policy,
7373 /* can be retrieved by unprivileged users */
7374 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7375 NL80211_FLAG_NEED_RTNL,
7376 },
7377 {
7378 .cmd = NL80211_CMD_SET_WOWLAN,
7379 .doit = nl80211_set_wowlan,
7380 .policy = nl80211_policy,
7381 .flags = GENL_ADMIN_PERM,
7382 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7383 NL80211_FLAG_NEED_RTNL,
7384 },
dfb89c56 7385#endif
e5497d76
JB		 7386 {
7387 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7388 .doit = nl80211_set_rekey_data,
7389 .policy = nl80211_policy,
7390 .flags = GENL_ADMIN_PERM,
7391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7392 NL80211_FLAG_NEED_RTNL,
7393 },
109086ce
AN		 7394 {
7395 .cmd = NL80211_CMD_TDLS_MGMT,
7396 .doit = nl80211_tdls_mgmt,
7397 .policy = nl80211_policy,
7398 .flags = GENL_ADMIN_PERM,
7399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7400 NL80211_FLAG_NEED_RTNL,
7401 },
7402 {
7403 .cmd = NL80211_CMD_TDLS_OPER,
7404 .doit = nl80211_tdls_oper,
7405 .policy = nl80211_policy,
7406 .flags = GENL_ADMIN_PERM,
7407 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7408 NL80211_FLAG_NEED_RTNL,
7409 },
28946da7
JB		 7410 {
7411 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7412 .doit = nl80211_register_unexpected_frame,
7413 .policy = nl80211_policy,
7414 .flags = GENL_ADMIN_PERM,
7415 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7416 NL80211_FLAG_NEED_RTNL,
7417 },
7f6cf311
JB		 7418 {
7419 .cmd = NL80211_CMD_PROBE_CLIENT,
7420 .doit = nl80211_probe_client,
7421 .policy = nl80211_policy,
7422 .flags = GENL_ADMIN_PERM,
2b5f8b0b 7423 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7f6cf311
JB		 7424 NL80211_FLAG_NEED_RTNL,
7425 },
5e760230
JB		 7426 {
7427 .cmd = NL80211_CMD_REGISTER_BEACONS,
7428 .doit = nl80211_register_beacons,
7429 .policy = nl80211_policy,
7430 .flags = GENL_ADMIN_PERM,
7431 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7432 NL80211_FLAG_NEED_RTNL,
7433 },
1d9d9213
SW		 7434 {
7435 .cmd = NL80211_CMD_SET_NOACK_MAP,
7436 .doit = nl80211_set_noack_map,
7437 .policy = nl80211_policy,
7438 .flags = GENL_ADMIN_PERM,
7439 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7440 NL80211_FLAG_NEED_RTNL,
7441 },
7442
55682965 7443};
9588bbd5 7444
6039f6d2
JM		 7445static struct genl_multicast_group nl80211_mlme_mcgrp = {
7446 .name = "mlme",
7447};
55682965
JB		 7448
7449/* multicast groups */
7450static struct genl_multicast_group nl80211_config_mcgrp = {
7451 .name = "config",
7452};
2a519311
JB		 7453static struct genl_multicast_group nl80211_scan_mcgrp = {
7454 .name = "scan",
7455};
73d54c9e
LR		 7456static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7457 .name = "regulatory",
7458};
55682965
JB		 7459
7460/* notification functions */
7461
7462void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7463{
7464 struct sk_buff *msg;
7465
fd2120ca 7466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 7467 if (!msg)
7468 return;
7469
7470 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7471 nlmsg_free(msg);
7472 return;
7473 }
7474
463d0183
JB		 7475 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7476 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 7477}
7478
362a415d
JB		 7479static int nl80211_add_scan_req(struct sk_buff *msg,
7480 struct cfg80211_registered_device *rdev)
7481{
7482 struct cfg80211_scan_request *req = rdev->scan_req;
7483 struct nlattr *nest;
7484 int i;
7485
667503dd
JB		 7486 ASSERT_RDEV_LOCK(rdev);
7487
362a415d
JB		 7488 if (WARN_ON(!req))
7489 return 0;
7490
7491 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7492 if (!nest)
7493 goto nla_put_failure;
9360ffd1
DM		 7494 for (i = 0; i < req->n_ssids; i++) {
7495 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7496 goto nla_put_failure;
7497 }
362a415d
JB		 7498 nla_nest_end(msg, nest);
7499
7500 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7501 if (!nest)
7502 goto nla_put_failure;
9360ffd1
DM		 7503 for (i = 0; i < req->n_channels; i++) {
7504 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7505 goto nla_put_failure;
7506 }
362a415d
JB		 7507 nla_nest_end(msg, nest);
7508
9360ffd1
DM		 7509 if (req->ie &&
7510 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7511 goto nla_put_failure;
362a415d
JB		 7512
7513 return 0;
7514 nla_put_failure:
7515 return -ENOBUFS;
7516}
7517
a538e2d5
JB		 7518static int nl80211_send_scan_msg(struct sk_buff *msg,
7519 struct cfg80211_registered_device *rdev,
fd014284 7520 struct wireless_dev *wdev,
a538e2d5
JB		 7521 u32 pid, u32 seq, int flags,
7522 u32 cmd)
2a519311
JB		 7523{
7524 void *hdr;
7525
7526 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7527 if (!hdr)
7528 return -1;
7529
9360ffd1 7530 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
fd014284
JB		 7531 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7532 wdev->netdev->ifindex)) ||
7533 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9360ffd1 7534 goto nla_put_failure;
2a519311 7535
362a415d
JB		 7536 /* ignore errors and send incomplete event anyway */
7537 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 7538
7539 return genlmsg_end(msg, hdr);
7540
7541 nla_put_failure:
7542 genlmsg_cancel(msg, hdr);
7543 return -EMSGSIZE;
7544}
7545
807f8a8c
LC		 7546static int
7547nl80211_send_sched_scan_msg(struct sk_buff *msg,
7548 struct cfg80211_registered_device *rdev,
7549 struct net_device *netdev,
7550 u32 pid, u32 seq, int flags, u32 cmd)
7551{
7552 void *hdr;
7553
7554 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7555 if (!hdr)
7556 return -1;
7557
9360ffd1
DM		 7558 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7559 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7560 goto nla_put_failure;
807f8a8c
LC		 7561
7562 return genlmsg_end(msg, hdr);
7563
7564 nla_put_failure:
7565 genlmsg_cancel(msg, hdr);
7566 return -EMSGSIZE;
7567}
7568
a538e2d5 7569void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
fd014284 7570 struct wireless_dev *wdev)
a538e2d5
JB		 7571{
7572 struct sk_buff *msg;
7573
58050fce 7574 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a538e2d5
JB		 7575 if (!msg)
7576 return;
7577
fd014284 7578 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5
JB		 7579 NL80211_CMD_TRIGGER_SCAN) < 0) {
7580 nlmsg_free(msg);
7581 return;
7582 }
7583
463d0183
JB		 7584 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7585 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7586}
7587
2a519311 7588void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
fd014284 7589 struct wireless_dev *wdev)
2a519311
JB		 7590{
7591 struct sk_buff *msg;
7592
fd2120ca 7593 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7594 if (!msg)
7595 return;
7596
fd014284 7597 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7598 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7599 nlmsg_free(msg);
7600 return;
7601 }
7602
463d0183
JB		 7603 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7604 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7605}
7606
7607void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
fd014284 7608 struct wireless_dev *wdev)
2a519311
JB		 7609{
7610 struct sk_buff *msg;
7611
fd2120ca 7612 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7613 if (!msg)
7614 return;
7615
fd014284 7616 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
a538e2d5 7617 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7618 nlmsg_free(msg);
7619 return;
7620 }
7621
463d0183
JB		 7622 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7623 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7624}
7625
807f8a8c
LC		 7626void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7627 struct net_device *netdev)
7628{
7629 struct sk_buff *msg;
7630
7631 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7632 if (!msg)
7633 return;
7634
7635 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7636 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7637 nlmsg_free(msg);
7638 return;
7639 }
7640
7641 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7642 nl80211_scan_mcgrp.id, GFP_KERNEL);
7643}
7644
7645void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7646 struct net_device *netdev, u32 cmd)
7647{
7648 struct sk_buff *msg;
7649
58050fce 7650 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
807f8a8c
LC		 7651 if (!msg)
7652 return;
7653
7654 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7655 nlmsg_free(msg);
7656 return;
7657 }
7658
7659 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7660 nl80211_scan_mcgrp.id, GFP_KERNEL);
7661}
7662
73d54c9e
LR		 7663/*
7664 * This can happen on global regulatory changes or device specific settings
7665 * based on custom world regulatory domains.
7666 */
7667void nl80211_send_reg_change_event(struct regulatory_request *request)
7668{
7669 struct sk_buff *msg;
7670 void *hdr;
7671
fd2120ca 7672 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7673 if (!msg)
7674 return;
7675
7676 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7677 if (!hdr) {
7678 nlmsg_free(msg);
7679 return;
7680 }
7681
7682 /* Userspace can always count this one always being set */
9360ffd1
DM		 7683 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7684 goto nla_put_failure;
7685
7686 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7687 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7688 NL80211_REGDOM_TYPE_WORLD))
7689 goto nla_put_failure;
7690 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7691 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7692 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7693 goto nla_put_failure;
7694 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7695 request->intersect) {
7696 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7697 NL80211_REGDOM_TYPE_INTERSECTION))
7698 goto nla_put_failure;
7699 } else {
7700 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7701 NL80211_REGDOM_TYPE_COUNTRY) ||
7702 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7703 request->alpha2))
7704 goto nla_put_failure;
7705 }
7706
7707 if (wiphy_idx_valid(request->wiphy_idx) &&
7708 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7709 goto nla_put_failure;
73d54c9e 7710
3b7b72ee 7711 genlmsg_end(msg, hdr);
73d54c9e 7712
bc43b28c 7713 rcu_read_lock();
463d0183 7714 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7715 GFP_ATOMIC);
7716 rcu_read_unlock();
73d54c9e
LR		 7717
7718 return;
7719
7720nla_put_failure:
7721 genlmsg_cancel(msg, hdr);
7722 nlmsg_free(msg);
7723}
7724
6039f6d2
JM		 7725static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7726 struct net_device *netdev,
7727 const u8 *buf, size_t len,
e6d6e342 7728 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7729{
7730 struct sk_buff *msg;
7731 void *hdr;
7732
e6d6e342 7733 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7734 if (!msg)
7735 return;
7736
7737 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7738 if (!hdr) {
7739 nlmsg_free(msg);
7740 return;
7741 }
7742
9360ffd1
DM		 7743 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7744 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7745 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7746 goto nla_put_failure;
6039f6d2 7747
3b7b72ee 7748 genlmsg_end(msg, hdr);
6039f6d2 7749
463d0183
JB		 7750 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7751 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7752 return;
7753
7754 nla_put_failure:
7755 genlmsg_cancel(msg, hdr);
7756 nlmsg_free(msg);
7757}
7758
7759void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7760 struct net_device *netdev, const u8 *buf,
7761 size_t len, gfp_t gfp)
6039f6d2
JM		 7762{
7763 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7764 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7765}
7766
7767void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7768 struct net_device *netdev, const u8 *buf,
e6d6e342 7769 size_t len, gfp_t gfp)
6039f6d2 7770{
e6d6e342
JB		 7771 nl80211_send_mlme_event(rdev, netdev, buf, len,
7772 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7773}
7774
53b46b84 7775void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7776 struct net_device *netdev, const u8 *buf,
7777 size_t len, gfp_t gfp)
6039f6d2
JM		 7778{
7779 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7780 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7781}
7782
53b46b84
JM		 7783void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7784 struct net_device *netdev, const u8 *buf,
e6d6e342 7785 size_t len, gfp_t gfp)
6039f6d2
JM		 7786{
7787 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7788 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7789}
7790
cf4e594e
JM		 7791void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7792 struct net_device *netdev, const u8 *buf,
7793 size_t len, gfp_t gfp)
7794{
7795 nl80211_send_mlme_event(rdev, netdev, buf, len,
7796 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7797}
7798
7799void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7800 struct net_device *netdev, const u8 *buf,
7801 size_t len, gfp_t gfp)
7802{
7803 nl80211_send_mlme_event(rdev, netdev, buf, len,
7804 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7805}
7806
1b06bb40
LR		 7807static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7808 struct net_device *netdev, int cmd,
e6d6e342 7809 const u8 *addr, gfp_t gfp)
1965c853
JM		 7810{
7811 struct sk_buff *msg;
7812 void *hdr;
7813
e6d6e342 7814 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7815 if (!msg)
7816 return;
7817
7818 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7819 if (!hdr) {
7820 nlmsg_free(msg);
7821 return;
7822 }
7823
9360ffd1
DM		 7824 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7825 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7826 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7827 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7828 goto nla_put_failure;
1965c853 7829
3b7b72ee 7830 genlmsg_end(msg, hdr);
1965c853 7831
463d0183
JB		 7832 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7833 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7834 return;
7835
7836 nla_put_failure:
7837 genlmsg_cancel(msg, hdr);
7838 nlmsg_free(msg);
7839}
7840
7841void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7842 struct net_device *netdev, const u8 *addr,
7843 gfp_t gfp)
1965c853
JM		 7844{
7845 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7846 addr, gfp);
1965c853
JM		 7847}
7848
7849void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7850 struct net_device *netdev, const u8 *addr,
7851 gfp_t gfp)
1965c853 7852{
e6d6e342
JB		 7853 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7854 addr, gfp);
1965c853
JM		 7855}
7856
b23aa676
SO		 7857void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7858 struct net_device *netdev, const u8 *bssid,
7859 const u8 *req_ie, size_t req_ie_len,
7860 const u8 *resp_ie, size_t resp_ie_len,
7861 u16 status, gfp_t gfp)
7862{
7863 struct sk_buff *msg;
7864 void *hdr;
7865
58050fce 7866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 7867 if (!msg)
7868 return;
7869
7870 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7871 if (!hdr) {
7872 nlmsg_free(msg);
7873 return;
7874 }
7875
9360ffd1
DM		 7876 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7877 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7878 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7879 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7880 (req_ie &&
7881 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7882 (resp_ie &&
7883 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7884 goto nla_put_failure;
b23aa676 7885
3b7b72ee 7886 genlmsg_end(msg, hdr);
b23aa676 7887
463d0183
JB		 7888 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7889 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7890 return;
7891
7892 nla_put_failure:
7893 genlmsg_cancel(msg, hdr);
7894 nlmsg_free(msg);
7895
7896}
7897
7898void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7899 struct net_device *netdev, const u8 *bssid,
7900 const u8 *req_ie, size_t req_ie_len,
7901 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7902{
7903 struct sk_buff *msg;
7904 void *hdr;
7905
58050fce 7906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
b23aa676
SO		 7907 if (!msg)
7908 return;
7909
7910 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7911 if (!hdr) {
7912 nlmsg_free(msg);
7913 return;
7914 }
7915
9360ffd1
DM		 7916 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7917 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7918 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7919 (req_ie &&
7920 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7921 (resp_ie &&
7922 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7923 goto nla_put_failure;
b23aa676 7924
3b7b72ee 7925 genlmsg_end(msg, hdr);
b23aa676 7926
463d0183
JB		 7927 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7928 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7929 return;
7930
7931 nla_put_failure:
7932 genlmsg_cancel(msg, hdr);
7933 nlmsg_free(msg);
7934
7935}
7936
7937void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7938 struct net_device *netdev, u16 reason,
667503dd 7939 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7940{
7941 struct sk_buff *msg;
7942 void *hdr;
7943
58050fce 7944 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
b23aa676
SO		 7945 if (!msg)
7946 return;
7947
7948 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7949 if (!hdr) {
7950 nlmsg_free(msg);
7951 return;
7952 }
7953
9360ffd1
DM		 7954 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7955 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7956 (from_ap && reason &&
7957 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7958 (from_ap &&
7959 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7960 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7961 goto nla_put_failure;
b23aa676 7962
3b7b72ee 7963 genlmsg_end(msg, hdr);
b23aa676 7964
463d0183
JB		 7965 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7966 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7967 return;
7968
7969 nla_put_failure:
7970 genlmsg_cancel(msg, hdr);
7971 nlmsg_free(msg);
7972
7973}
7974
04a773ad
JB		 7975void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7976 struct net_device *netdev, const u8 *bssid,
7977 gfp_t gfp)
7978{
7979 struct sk_buff *msg;
7980 void *hdr;
7981
fd2120ca 7982 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7983 if (!msg)
7984 return;
7985
7986 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7987 if (!hdr) {
7988 nlmsg_free(msg);
7989 return;
7990 }
7991
9360ffd1
DM		 7992 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7993 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7994 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7995 goto nla_put_failure;
04a773ad 7996
3b7b72ee 7997 genlmsg_end(msg, hdr);
04a773ad 7998
463d0183
JB		 7999 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8000 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 8001 return;
8002
8003 nla_put_failure:
8004 genlmsg_cancel(msg, hdr);
8005 nlmsg_free(msg);
8006}
8007
c93b5e71
JC		 8008void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8009 struct net_device *netdev,
8010 const u8 *macaddr, const u8* ie, u8 ie_len,
8011 gfp_t gfp)
8012{
8013 struct sk_buff *msg;
8014 void *hdr;
8015
8016 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8017 if (!msg)
8018 return;
8019
8020 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8021 if (!hdr) {
8022 nlmsg_free(msg);
8023 return;
8024 }
8025
9360ffd1
DM		 8026 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8027 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8028 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8029 (ie_len && ie &&
8030 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8031 goto nla_put_failure;
c93b5e71 8032
3b7b72ee 8033 genlmsg_end(msg, hdr);
c93b5e71
JC		 8034
8035 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8036 nl80211_mlme_mcgrp.id, gfp);
8037 return;
8038
8039 nla_put_failure:
8040 genlmsg_cancel(msg, hdr);
8041 nlmsg_free(msg);
8042}
8043
a3b8b056
JM		 8044void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8045 struct net_device *netdev, const u8 *addr,
8046 enum nl80211_key_type key_type, int key_id,
e6d6e342 8047 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 8048{
8049 struct sk_buff *msg;
8050 void *hdr;
8051
e6d6e342 8052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 8053 if (!msg)
8054 return;
8055
8056 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8057 if (!hdr) {
8058 nlmsg_free(msg);
8059 return;
8060 }
8061
9360ffd1
DM		 8062 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8063 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8064 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8065 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8066 (key_id != -1 &&
8067 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8068 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8069 goto nla_put_failure;
a3b8b056 8070
3b7b72ee 8071 genlmsg_end(msg, hdr);
a3b8b056 8072
463d0183
JB		 8073 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8074 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 8075 return;
8076
8077 nla_put_failure:
8078 genlmsg_cancel(msg, hdr);
8079 nlmsg_free(msg);
8080}
8081
6bad8766
LR		 8082void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8083 struct ieee80211_channel *channel_before,
8084 struct ieee80211_channel *channel_after)
8085{
8086 struct sk_buff *msg;
8087 void *hdr;
8088 struct nlattr *nl_freq;
8089
fd2120ca 8090 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 8091 if (!msg)
8092 return;
8093
8094 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8095 if (!hdr) {
8096 nlmsg_free(msg);
8097 return;
8098 }
8099
8100 /*
8101 * Since we are applying the beacon hint to a wiphy we know its
8102 * wiphy_idx is valid
8103 */
9360ffd1
DM		 8104 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8105 goto nla_put_failure;
6bad8766
LR		 8106
8107 /* Before */
8108 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8109 if (!nl_freq)
8110 goto nla_put_failure;
8111 if (nl80211_msg_put_channel(msg, channel_before))
8112 goto nla_put_failure;
8113 nla_nest_end(msg, nl_freq);
8114
8115 /* After */
8116 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8117 if (!nl_freq)
8118 goto nla_put_failure;
8119 if (nl80211_msg_put_channel(msg, channel_after))
8120 goto nla_put_failure;
8121 nla_nest_end(msg, nl_freq);
8122
3b7b72ee 8123 genlmsg_end(msg, hdr);
6bad8766 8124
463d0183
JB		 8125 rcu_read_lock();
8126 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8127 GFP_ATOMIC);
8128 rcu_read_unlock();
6bad8766
LR		 8129
8130 return;
8131
8132nla_put_failure:
8133 genlmsg_cancel(msg, hdr);
8134 nlmsg_free(msg);
8135}
8136
9588bbd5
JM		 8137static void nl80211_send_remain_on_chan_event(
8138 int cmd, struct cfg80211_registered_device *rdev,
71bbc994 8139 struct wireless_dev *wdev, u64 cookie,
9588bbd5
JM		 8140 struct ieee80211_channel *chan,
8141 enum nl80211_channel_type channel_type,
8142 unsigned int duration, gfp_t gfp)
8143{
8144 struct sk_buff *msg;
8145 void *hdr;
8146
8147 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8148 if (!msg)
8149 return;
8150
8151 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8152 if (!hdr) {
8153 nlmsg_free(msg);
8154 return;
8155 }
8156
9360ffd1 8157 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8158 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8159 wdev->netdev->ifindex)) ||
00f53350 8160 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9360ffd1
DM		 8161 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8162 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8163 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8164 goto nla_put_failure;
9588bbd5 8165
9360ffd1
DM		 8166 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8167 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8168 goto nla_put_failure;
9588bbd5 8169
3b7b72ee 8170 genlmsg_end(msg, hdr);
9588bbd5
JM		 8171
8172 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8173 nl80211_mlme_mcgrp.id, gfp);
8174 return;
8175
8176 nla_put_failure:
8177 genlmsg_cancel(msg, hdr);
8178 nlmsg_free(msg);
8179}
8180
8181void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
71bbc994 8182 struct wireless_dev *wdev, u64 cookie,
9588bbd5
JM		 8183 struct ieee80211_channel *chan,
8184 enum nl80211_channel_type channel_type,
8185 unsigned int duration, gfp_t gfp)
8186{
8187 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
71bbc994 8188 rdev, wdev, cookie, chan,
9588bbd5
JM		 8189 channel_type, duration, gfp);
8190}
8191
8192void nl80211_send_remain_on_channel_cancel(
71bbc994
JB		 8193 struct cfg80211_registered_device *rdev,
8194 struct wireless_dev *wdev,
9588bbd5
JM		 8195 u64 cookie, struct ieee80211_channel *chan,
8196 enum nl80211_channel_type channel_type, gfp_t gfp)
8197{
8198 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
71bbc994 8199 rdev, wdev, cookie, chan,
9588bbd5
JM		 8200 channel_type, 0, gfp);
8201}
8202
98b62183
JB		 8203void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8204 struct net_device *dev, const u8 *mac_addr,
8205 struct station_info *sinfo, gfp_t gfp)
8206{
8207 struct sk_buff *msg;
8208
58050fce 8209 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
98b62183
JB		 8210 if (!msg)
8211 return;
8212
66266b3a
JL		 8213 if (nl80211_send_station(msg, 0, 0, 0,
8214 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 8215 nlmsg_free(msg);
8216 return;
8217 }
8218
8219 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8220 nl80211_mlme_mcgrp.id, gfp);
8221}
8222
ec15e68b
JM		 8223void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8224 struct net_device *dev, const u8 *mac_addr,
8225 gfp_t gfp)
8226{
8227 struct sk_buff *msg;
8228 void *hdr;
8229
58050fce 8230 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
ec15e68b
JM		 8231 if (!msg)
8232 return;
8233
8234 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8235 if (!hdr) {
8236 nlmsg_free(msg);
8237 return;
8238 }
8239
9360ffd1
DM		 8240 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8241 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8242 goto nla_put_failure;
ec15e68b 8243
3b7b72ee 8244 genlmsg_end(msg, hdr);
ec15e68b
JM		 8245
8246 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8247 nl80211_mlme_mcgrp.id, gfp);
8248 return;
8249
8250 nla_put_failure:
8251 genlmsg_cancel(msg, hdr);
8252 nlmsg_free(msg);
8253}
8254
b92ab5d8
JB		 8255static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8256 const u8 *addr, gfp_t gfp)
28946da7
JB		 8257{
8258 struct wireless_dev *wdev = dev->ieee80211_ptr;
8259 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8260 struct sk_buff *msg;
8261 void *hdr;
8262 int err;
8263 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8264
8265 if (!nlpid)
8266 return false;
8267
8268 msg = nlmsg_new(100, gfp);
8269 if (!msg)
8270 return true;
8271
b92ab5d8 8272 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 8273 if (!hdr) {
8274 nlmsg_free(msg);
8275 return true;
8276 }
8277
9360ffd1
DM		 8278 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8279 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8280 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8281 goto nla_put_failure;
28946da7
JB		 8282
8283 err = genlmsg_end(msg, hdr);
8284 if (err < 0) {
8285 nlmsg_free(msg);
8286 return true;
8287 }
8288
8289 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8290 return true;
8291
8292 nla_put_failure:
8293 genlmsg_cancel(msg, hdr);
8294 nlmsg_free(msg);
8295 return true;
8296}
8297
b92ab5d8
JB		 8298bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8299{
8300 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8301 addr, gfp);
8302}
8303
8304bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8305 const u8 *addr, gfp_t gfp)
8306{
8307 return __nl80211_unexpected_frame(dev,
8308 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8309 addr, gfp);
8310}
8311
2e161f78 8312int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
71bbc994 8313 struct wireless_dev *wdev, u32 nlpid,
804483e9
JB		 8314 int freq, int sig_dbm,
8315 const u8 *buf, size_t len, gfp_t gfp)
026331c4 8316{
71bbc994 8317 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8318 struct sk_buff *msg;
8319 void *hdr;
026331c4
JM		 8320
8321 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8322 if (!msg)
8323 return -ENOMEM;
8324
2e161f78 8325 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 8326 if (!hdr) {
8327 nlmsg_free(msg);
8328 return -ENOMEM;
8329 }
8330
9360ffd1 8331 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8332 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8333 netdev->ifindex)) ||
9360ffd1
DM		 8334 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8335 (sig_dbm &&
8336 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8337 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8338 goto nla_put_failure;
026331c4 8339
3b7b72ee 8340 genlmsg_end(msg, hdr);
026331c4 8341
3b7b72ee 8342 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 8343
8344 nla_put_failure:
8345 genlmsg_cancel(msg, hdr);
8346 nlmsg_free(msg);
8347 return -ENOBUFS;
8348}
8349
2e161f78 8350void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
71bbc994 8351 struct wireless_dev *wdev, u64 cookie,
2e161f78
JB		 8352 const u8 *buf, size_t len, bool ack,
8353 gfp_t gfp)
026331c4 8354{
71bbc994 8355 struct net_device *netdev = wdev->netdev;
026331c4
JM		 8356 struct sk_buff *msg;
8357 void *hdr;
8358
8359 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8360 if (!msg)
8361 return;
8362
2e161f78 8363 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 8364 if (!hdr) {
8365 nlmsg_free(msg);
8366 return;
8367 }
8368
9360ffd1 8369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
71bbc994
JB		 8370 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8371 netdev->ifindex)) ||
9360ffd1
DM		 8372 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8373 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8374 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8375 goto nla_put_failure;
026331c4 8376
3b7b72ee 8377 genlmsg_end(msg, hdr);
026331c4
JM		 8378
8379 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8380 return;
8381
8382 nla_put_failure:
8383 genlmsg_cancel(msg, hdr);
8384 nlmsg_free(msg);
8385}
8386
d6dc1a38
JO		 8387void
8388nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8389 struct net_device *netdev,
8390 enum nl80211_cqm_rssi_threshold_event rssi_event,
8391 gfp_t gfp)
8392{
8393 struct sk_buff *msg;
8394 struct nlattr *pinfoattr;
8395 void *hdr;
8396
58050fce 8397 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
d6dc1a38
JO		 8398 if (!msg)
8399 return;
8400
8401 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8402 if (!hdr) {
8403 nlmsg_free(msg);
8404 return;
8405 }
8406
9360ffd1
DM		 8407 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8408 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8409 goto nla_put_failure;
d6dc1a38
JO		 8410
8411 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8412 if (!pinfoattr)
8413 goto nla_put_failure;
8414
9360ffd1
DM		 8415 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8416 rssi_event))
8417 goto nla_put_failure;
d6dc1a38
JO		 8418
8419 nla_nest_end(msg, pinfoattr);
8420
3b7b72ee 8421 genlmsg_end(msg, hdr);
d6dc1a38
JO		 8422
8423 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8424 nl80211_mlme_mcgrp.id, gfp);
8425 return;
8426
8427 nla_put_failure:
8428 genlmsg_cancel(msg, hdr);
8429 nlmsg_free(msg);
8430}
8431
e5497d76
JB		 8432void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8433 struct net_device *netdev, const u8 *bssid,
8434 const u8 *replay_ctr, gfp_t gfp)
8435{
8436 struct sk_buff *msg;
8437 struct nlattr *rekey_attr;
8438 void *hdr;
8439
58050fce 8440 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
e5497d76
JB		 8441 if (!msg)
8442 return;
8443
8444 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8445 if (!hdr) {
8446 nlmsg_free(msg);
8447 return;
8448 }
8449
9360ffd1
DM		 8450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8451 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8452 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8453 goto nla_put_failure;
e5497d76
JB		 8454
8455 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8456 if (!rekey_attr)
8457 goto nla_put_failure;
8458
9360ffd1
DM		 8459 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8460 NL80211_REPLAY_CTR_LEN, replay_ctr))
8461 goto nla_put_failure;
e5497d76
JB		 8462
8463 nla_nest_end(msg, rekey_attr);
8464
3b7b72ee 8465 genlmsg_end(msg, hdr);
e5497d76
JB		 8466
8467 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8468 nl80211_mlme_mcgrp.id, gfp);
8469 return;
8470
8471 nla_put_failure:
8472 genlmsg_cancel(msg, hdr);
8473 nlmsg_free(msg);
8474}
8475
c9df56b4
JM		 8476void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8477 struct net_device *netdev, int index,
8478 const u8 *bssid, bool preauth, gfp_t gfp)
8479{
8480 struct sk_buff *msg;
8481 struct nlattr *attr;
8482 void *hdr;
8483
58050fce 8484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c9df56b4
JM		 8485 if (!msg)
8486 return;
8487
8488 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8489 if (!hdr) {
8490 nlmsg_free(msg);
8491 return;
8492 }
8493
9360ffd1
DM		 8494 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8495 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8496 goto nla_put_failure;
c9df56b4
JM		 8497
8498 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8499 if (!attr)
8500 goto nla_put_failure;
8501
9360ffd1
DM		 8502 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8503 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8504 (preauth &&
8505 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8506 goto nla_put_failure;
c9df56b4
JM		 8507
8508 nla_nest_end(msg, attr);
8509
3b7b72ee 8510 genlmsg_end(msg, hdr);
c9df56b4
JM		 8511
8512 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8513 nl80211_mlme_mcgrp.id, gfp);
8514 return;
8515
8516 nla_put_failure:
8517 genlmsg_cancel(msg, hdr);
8518 nlmsg_free(msg);
8519}
8520
5314526b
TP		 8521void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8522 struct net_device *netdev, int freq,
8523 enum nl80211_channel_type type, gfp_t gfp)
8524{
8525 struct sk_buff *msg;
8526 void *hdr;
8527
58050fce 8528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5314526b
TP		 8529 if (!msg)
8530 return;
8531
8532 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8533 if (!hdr) {
8534 nlmsg_free(msg);
8535 return;
8536 }
8537
7eab0f64
JL		 8538 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8539 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8540 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8541 goto nla_put_failure;
5314526b
TP		 8542
8543 genlmsg_end(msg, hdr);
8544
8545 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8546 nl80211_mlme_mcgrp.id, gfp);
8547 return;
8548
8549 nla_put_failure:
8550 genlmsg_cancel(msg, hdr);
8551 nlmsg_free(msg);
8552}
8553
84f10708
TP		 8554void
8555nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8556 struct net_device *netdev, const u8 *peer,
8557 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8558{
8559 struct sk_buff *msg;
8560 struct nlattr *pinfoattr;
8561 void *hdr;
8562
8563 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8564 if (!msg)
8565 return;
8566
8567 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8568 if (!hdr) {
8569 nlmsg_free(msg);
8570 return;
8571 }
8572
8573 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8574 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8575 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8576 goto nla_put_failure;
8577
8578 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8579 if (!pinfoattr)
8580 goto nla_put_failure;
8581
8582 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8583 goto nla_put_failure;
8584
8585 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8586 goto nla_put_failure;
8587
8588 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8589 goto nla_put_failure;
8590
8591 nla_nest_end(msg, pinfoattr);
8592
8593 genlmsg_end(msg, hdr);
8594
8595 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8596 nl80211_mlme_mcgrp.id, gfp);
8597 return;
8598
8599 nla_put_failure:
8600 genlmsg_cancel(msg, hdr);
8601 nlmsg_free(msg);
8602}
8603
c063dbf5
JB		 8604void
8605nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8606 struct net_device *netdev, const u8 *peer,
8607 u32 num_packets, gfp_t gfp)
8608{
8609 struct sk_buff *msg;
8610 struct nlattr *pinfoattr;
8611 void *hdr;
8612
58050fce 8613 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
c063dbf5
JB		 8614 if (!msg)
8615 return;
8616
8617 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8618 if (!hdr) {
8619 nlmsg_free(msg);
8620 return;
8621 }
8622
9360ffd1
DM		 8623 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8624 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8625 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8626 goto nla_put_failure;
c063dbf5
JB		 8627
8628 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8629 if (!pinfoattr)
8630 goto nla_put_failure;
8631
9360ffd1
DM		 8632 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8633 goto nla_put_failure;
c063dbf5
JB		 8634
8635 nla_nest_end(msg, pinfoattr);
8636
3b7b72ee 8637 genlmsg_end(msg, hdr);
c063dbf5
JB		 8638
8639 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8640 nl80211_mlme_mcgrp.id, gfp);
8641 return;
8642
8643 nla_put_failure:
8644 genlmsg_cancel(msg, hdr);
8645 nlmsg_free(msg);
8646}
8647
7f6cf311
JB		 8648void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8649 u64 cookie, bool acked, gfp_t gfp)
8650{
8651 struct wireless_dev *wdev = dev->ieee80211_ptr;
8652 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8653 struct sk_buff *msg;
8654 void *hdr;
8655 int err;
8656
58050fce 8657 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7f6cf311
JB		 8658 if (!msg)
8659 return;
8660
8661 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8662 if (!hdr) {
8663 nlmsg_free(msg);
8664 return;
8665 }
8666
9360ffd1
DM		 8667 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8668 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8669 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8670 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8671 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8672 goto nla_put_failure;
7f6cf311
JB		 8673
8674 err = genlmsg_end(msg, hdr);
8675 if (err < 0) {
8676 nlmsg_free(msg);
8677 return;
8678 }
8679
8680 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8681 nl80211_mlme_mcgrp.id, gfp);
8682 return;
8683
8684 nla_put_failure:
8685 genlmsg_cancel(msg, hdr);
8686 nlmsg_free(msg);
8687}
8688EXPORT_SYMBOL(cfg80211_probe_status);
8689
5e760230
JB		 8690void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8691 const u8 *frame, size_t len,
804483e9 8692 int freq, int sig_dbm, gfp_t gfp)
5e760230
JB		 8693{
8694 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8695 struct sk_buff *msg;
8696 void *hdr;
8697 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8698
8699 if (!nlpid)
8700 return;
8701
8702 msg = nlmsg_new(len + 100, gfp);
8703 if (!msg)
8704 return;
8705
8706 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8707 if (!hdr) {
8708 nlmsg_free(msg);
8709 return;
8710 }
8711
9360ffd1
DM		 8712 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8713 (freq &&
8714 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8715 (sig_dbm &&
8716 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8717 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8718 goto nla_put_failure;
5e760230
JB		 8719
8720 genlmsg_end(msg, hdr);
8721
8722 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8723 return;
8724
8725 nla_put_failure:
8726 genlmsg_cancel(msg, hdr);
8727 nlmsg_free(msg);
8728}
8729EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8730
026331c4
JM		 8731static int nl80211_netlink_notify(struct notifier_block * nb,
8732 unsigned long state,
8733 void *_notify)
8734{
8735 struct netlink_notify *notify = _notify;
8736 struct cfg80211_registered_device *rdev;
8737 struct wireless_dev *wdev;
8738
8739 if (state != NETLINK_URELEASE)
8740 return NOTIFY_DONE;
8741
8742 rcu_read_lock();
8743
5e760230 8744 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
89a54e48 8745 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
2e161f78 8746 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 8747 if (rdev->ap_beacons_nlpid == notify->pid)
8748 rdev->ap_beacons_nlpid = 0;
8749 }
026331c4
JM		 8750
8751 rcu_read_unlock();
8752
8753 return NOTIFY_DONE;
8754}
8755
8756static struct notifier_block nl80211_netlink_notifier = {
8757 .notifier_call = nl80211_netlink_notify,
8758};
8759
55682965
JB		 8760/* initialisation/exit functions */
8761
8762int nl80211_init(void)
8763{
0d63cbb5 8764 int err;
55682965 8765
0d63cbb5
MM		 8766 err = genl_register_family_with_ops(&nl80211_fam,
8767 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 8768 if (err)
8769 return err;
8770
55682965
JB		 8771 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8772 if (err)
8773 goto err_out;
8774
2a519311
JB		 8775 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8776 if (err)
8777 goto err_out;
8778
73d54c9e
LR		 8779 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8780 if (err)
8781 goto err_out;
8782
6039f6d2
JM		 8783 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8784 if (err)
8785 goto err_out;
8786
aff89a9b
JB		 8787#ifdef CONFIG_NL80211_TESTMODE
8788 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8789 if (err)
8790 goto err_out;
8791#endif
8792
026331c4
JM		 8793 err = netlink_register_notifier(&nl80211_netlink_notifier);
8794 if (err)
8795 goto err_out;
8796
55682965
JB		 8797 return 0;
8798 err_out:
8799 genl_unregister_family(&nl80211_fam);
8800 return err;
8801}
8802
8803void nl80211_exit(void)
8804{
026331c4 8805 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 8806 genl_unregister_family(&nl80211_fam);
8807}
kernel source for telekom puls (alcatel/mediatek)