2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/slab.h>
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>
17 #include <linux/etherdevice.h>
18 #include <net/net_namespace.h>
19 #include <net/genetlink.h>
20 #include <net/cfg80211.h>
22 #include <net/inet_connection_sock.h>
28 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
33 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
38 /* the netlink family */
39 static struct genl_family nl80211_fam = {
40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = "nl80211", /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
44 .maxattr = NL80211_ATTR_MAX,
46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
50 /* returns ERR_PTR values */
51 static struct wireless_dev *
52 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
54 struct cfg80211_registered_device *rdev;
55 struct wireless_dev *result = NULL;
56 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
57 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
62 assert_cfg80211_lock();
64 if (!have_ifidx && !have_wdev_id)
65 return ERR_PTR(-EINVAL);
68 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
70 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
71 wiphy_idx = wdev_id >> 32;
74 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
75 struct wireless_dev *wdev;
77 if (wiphy_net(&rdev->wiphy) != netns)
80 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
83 mutex_lock(&rdev->devlist_mtx);
84 list_for_each_entry(wdev, &rdev->wdev_list, list) {
85 if (have_ifidx && wdev->netdev &&
86 wdev->netdev->ifindex == ifidx) {
90 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
95 mutex_unlock(&rdev->devlist_mtx);
103 return ERR_PTR(-ENODEV);
106 static struct cfg80211_registered_device *
107 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
109 struct cfg80211_registered_device *rdev = NULL, *tmp;
110 struct net_device *netdev;
112 assert_cfg80211_lock();
114 if (!attrs[NL80211_ATTR_WIPHY] &&
115 !attrs[NL80211_ATTR_IFINDEX] &&
116 !attrs[NL80211_ATTR_WDEV])
117 return ERR_PTR(-EINVAL);
119 if (attrs[NL80211_ATTR_WIPHY])
120 rdev = cfg80211_rdev_by_wiphy_idx(
121 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
123 if (attrs[NL80211_ATTR_WDEV]) {
124 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
125 struct wireless_dev *wdev;
128 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
130 /* make sure wdev exists */
131 mutex_lock(&tmp->devlist_mtx);
132 list_for_each_entry(wdev, &tmp->wdev_list, list) {
133 if (wdev->identifier != (u32)wdev_id)
138 mutex_unlock(&tmp->devlist_mtx);
143 if (rdev && tmp != rdev)
144 return ERR_PTR(-EINVAL);
149 if (attrs[NL80211_ATTR_IFINDEX]) {
150 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
151 netdev = dev_get_by_index(netns, ifindex);
153 if (netdev->ieee80211_ptr)
155 netdev->ieee80211_ptr->wiphy);
161 /* not wireless device -- return error */
163 return ERR_PTR(-EINVAL);
165 /* mismatch -- return error */
166 if (rdev && tmp != rdev)
167 return ERR_PTR(-EINVAL);
174 return ERR_PTR(-ENODEV);
176 if (netns != wiphy_net(&rdev->wiphy))
177 return ERR_PTR(-ENODEV);
183 * This function returns a pointer to the driver
184 * that the genl_info item that is passed refers to.
185 * If successful, it returns non-NULL and also locks
186 * the driver's mutex!
188 * This means that you need to call cfg80211_unlock_rdev()
189 * before being allowed to acquire &cfg80211_mutex!
191 * This is necessary because we need to lock the global
192 * mutex to get an item off the list safely, and then
193 * we lock the rdev mutex so it doesn't go away under us.
195 * We don't want to keep cfg80211_mutex locked
196 * for all the time in order to allow requests on
197 * other interfaces to go through at the same time.
199 * The result of this can be a PTR_ERR and hence must
200 * be checked with IS_ERR() for errors.
202 static struct cfg80211_registered_device *
203 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
205 struct cfg80211_registered_device *rdev;
207 mutex_lock(&cfg80211_mutex);
208 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
210 /* if it is not an error we grab the lock on
211 * it to assure it won't be going away while
212 * we operate on it */
214 mutex_lock(&rdev->mtx);
216 mutex_unlock(&cfg80211_mutex);
221 /* policy for the attributes */
222 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
223 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
224 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
226 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
228 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
229 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
232 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
234 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
236 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
237 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
238 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
240 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
242 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
244 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
245 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
247 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
248 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
249 .len = WLAN_MAX_KEY_LEN },
250 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
251 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
252 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
253 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
254 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
256 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
257 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
258 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
259 .len = IEEE80211_MAX_DATA_LEN },
260 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
262 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
263 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
264 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
265 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
266 .len = NL80211_MAX_SUPP_RATES },
267 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
268 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
269 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
270 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
271 .len = IEEE80211_MAX_MESH_ID_LEN },
272 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
274 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
275 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
277 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
279 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
280 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
281 .len = NL80211_MAX_SUPP_RATES },
282 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
284 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
285 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
287 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
289 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
290 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
291 .len = IEEE80211_MAX_DATA_LEN },
292 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
293 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
295 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
296 .len = IEEE80211_MAX_SSID_LEN },
297 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
298 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
299 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
300 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
301 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
302 [NL80211_ATTR_STA_FLAGS2] = {
303 .len = sizeof(struct nl80211_sta_flag_update),
305 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
306 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
307 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
308 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
309 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
310 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
311 [NL80211_ATTR_PID] = { .type = NLA_U32 },
312 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
313 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
314 .len = WLAN_PMKID_LEN },
315 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
316 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
317 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
318 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
319 .len = IEEE80211_MAX_DATA_LEN },
320 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
321 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
322 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
323 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
324 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
325 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
326 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
327 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
328 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
329 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
330 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
331 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
332 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
333 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
334 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
335 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
336 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
337 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
338 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
339 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
340 .len = IEEE80211_MAX_DATA_LEN },
341 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
343 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
344 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
345 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
346 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
349 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
351 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
352 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
353 .len = IEEE80211_MAX_DATA_LEN },
354 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
355 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
356 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
357 .len = NL80211_HT_CAPABILITY_LEN
359 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
360 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
361 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
362 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
363 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
364 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
365 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
366 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
367 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
368 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
369 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
370 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
371 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
372 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
373 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
374 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
375 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
376 .len = NL80211_VHT_CAPABILITY_LEN,
378 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
379 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
380 .len = IEEE80211_MAX_DATA_LEN },
381 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
382 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
383 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
384 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
389 /* policy for the key attributes */
390 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
391 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
392 [NL80211_KEY_IDX] = { .type = NLA_U8 },
393 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
394 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
395 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
396 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
397 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
398 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
401 /* policy for the key default flags */
402 static const struct nla_policy
403 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
404 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
405 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
408 /* policy for WoWLAN attributes */
409 static const struct nla_policy
410 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
411 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
412 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
413 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
415 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
422 static const struct nla_policy
423 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
424 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
425 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
426 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
427 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
428 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
429 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
430 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
431 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
433 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
434 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
436 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
437 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
438 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
441 /* policy for GTK rekey offload attributes */
442 static const struct nla_policy
443 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
444 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
445 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
446 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
449 static const struct nla_policy
450 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
451 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
452 .len = IEEE80211_MAX_SSID_LEN },
453 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
456 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
457 struct netlink_callback *cb,
458 struct cfg80211_registered_device **rdev,
459 struct wireless_dev **wdev)
464 mutex_lock(&cfg80211_mutex);
467 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
468 nl80211_fam.attrbuf, nl80211_fam.maxattr,
473 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
474 nl80211_fam.attrbuf);
476 err = PTR_ERR(*wdev);
479 *rdev = wiphy_to_dev((*wdev)->wiphy);
480 /* 0 is the first index - add 1 to parse only once */
481 cb->args[0] = (*rdev)->wiphy_idx + 1;
482 cb->args[1] = (*wdev)->identifier;
484 /* subtract the 1 again here */
485 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
486 struct wireless_dev *tmp;
492 *rdev = wiphy_to_dev(wiphy);
495 mutex_lock(&(*rdev)->devlist_mtx);
496 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
497 if (tmp->identifier == cb->args[1]) {
502 mutex_unlock(&(*rdev)->devlist_mtx);
510 cfg80211_lock_rdev(*rdev);
512 mutex_unlock(&cfg80211_mutex);
515 mutex_unlock(&cfg80211_mutex);
520 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
522 cfg80211_unlock_rdev(rdev);
527 static bool is_valid_ie_attr(const struct nlattr *attr)
535 pos = nla_data(attr);
556 /* message building helper */
557 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
560 /* since there is no private header just add the generic one */
561 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
564 static int nl80211_msg_put_channel(struct sk_buff *msg,
565 struct ieee80211_channel *chan,
568 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
570 goto nla_put_failure;
572 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
573 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
574 goto nla_put_failure;
575 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
576 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
577 goto nla_put_failure;
578 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
579 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
580 goto nla_put_failure;
581 if (chan->flags & IEEE80211_CHAN_RADAR) {
582 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
583 goto nla_put_failure;
587 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
589 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
591 goto nla_put_failure;
592 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
594 goto nla_put_failure;
599 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
600 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
601 goto nla_put_failure;
602 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
603 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
604 goto nla_put_failure;
605 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
606 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
607 goto nla_put_failure;
608 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
609 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
610 goto nla_put_failure;
613 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
614 DBM_TO_MBM(chan->max_power)))
615 goto nla_put_failure;
623 /* netlink command implementations */
630 bool def_uni, def_multi;
633 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
635 struct nlattr *tb[NL80211_KEY_MAX + 1];
636 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
641 k->def = !!tb[NL80211_KEY_DEFAULT];
642 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
651 if (tb[NL80211_KEY_IDX])
652 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
654 if (tb[NL80211_KEY_DATA]) {
655 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
656 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
659 if (tb[NL80211_KEY_SEQ]) {
660 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
661 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
664 if (tb[NL80211_KEY_CIPHER])
665 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
667 if (tb[NL80211_KEY_TYPE]) {
668 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
669 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
673 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
674 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
675 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
676 tb[NL80211_KEY_DEFAULT_TYPES],
677 nl80211_key_default_policy);
681 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
682 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
688 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
690 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
691 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
692 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
695 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
696 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
697 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
700 if (info->attrs[NL80211_ATTR_KEY_IDX])
701 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
703 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
704 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
706 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
707 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
716 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
717 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
718 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
722 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
723 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
724 int err = nla_parse_nested(
725 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
726 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
727 nl80211_key_default_policy);
731 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
732 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
738 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
742 memset(k, 0, sizeof(*k));
746 if (info->attrs[NL80211_ATTR_KEY])
747 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
749 err = nl80211_parse_key_old(info, k);
754 if (k->def && k->defmgmt)
758 if (k->def_uni || !k->def_multi)
764 if (k->idx < 4 || k->idx > 5)
767 if (k->idx < 0 || k->idx > 3)
770 if (k->idx < 0 || k->idx > 5)
778 static struct cfg80211_cached_keys *
779 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
780 struct nlattr *keys, bool *no_ht)
782 struct key_parse parse;
784 struct cfg80211_cached_keys *result;
785 int rem, err, def = 0;
787 result = kzalloc(sizeof(*result), GFP_KERNEL);
789 return ERR_PTR(-ENOMEM);
792 result->defmgmt = -1;
794 nla_for_each_nested(key, keys, rem) {
795 memset(&parse, 0, sizeof(parse));
798 err = nl80211_parse_key_new(key, &parse);
804 if (parse.idx < 0 || parse.idx > 4)
810 result->def = parse.idx;
811 if (!parse.def_uni || !parse.def_multi)
813 } else if (parse.defmgmt)
815 err = cfg80211_validate_key_settings(rdev, &parse.p,
816 parse.idx, false, NULL);
819 result->params[parse.idx].cipher = parse.p.cipher;
820 result->params[parse.idx].key_len = parse.p.key_len;
821 result->params[parse.idx].key = result->data[parse.idx];
822 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
824 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
825 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
837 static int nl80211_key_allowed(struct wireless_dev *wdev)
839 ASSERT_WDEV_LOCK(wdev);
841 switch (wdev->iftype) {
842 case NL80211_IFTYPE_AP:
843 case NL80211_IFTYPE_AP_VLAN:
844 case NL80211_IFTYPE_P2P_GO:
845 case NL80211_IFTYPE_MESH_POINT:
847 case NL80211_IFTYPE_ADHOC:
848 if (!wdev->current_bss)
851 case NL80211_IFTYPE_STATION:
852 case NL80211_IFTYPE_P2P_CLIENT:
853 if (wdev->sme_state != CFG80211_SME_CONNECTED)
863 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
865 struct nlattr *nl_modes = nla_nest_start(msg, attr);
869 goto nla_put_failure;
873 if ((ifmodes & 1) && nla_put_flag(msg, i))
874 goto nla_put_failure;
879 nla_nest_end(msg, nl_modes);
886 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
890 struct nlattr *nl_combis;
893 nl_combis = nla_nest_start(msg,
894 NL80211_ATTR_INTERFACE_COMBINATIONS);
896 goto nla_put_failure;
898 for (i = 0; i < wiphy->n_iface_combinations; i++) {
899 const struct ieee80211_iface_combination *c;
900 struct nlattr *nl_combi, *nl_limits;
902 c = &wiphy->iface_combinations[i];
904 nl_combi = nla_nest_start(msg, i + 1);
906 goto nla_put_failure;
908 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
910 goto nla_put_failure;
912 for (j = 0; j < c->n_limits; j++) {
913 struct nlattr *nl_limit;
915 nl_limit = nla_nest_start(msg, j + 1);
917 goto nla_put_failure;
918 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
920 goto nla_put_failure;
921 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
923 goto nla_put_failure;
924 nla_nest_end(msg, nl_limit);
927 nla_nest_end(msg, nl_limits);
929 if (c->beacon_int_infra_match &&
930 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
931 goto nla_put_failure;
932 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
933 c->num_different_channels) ||
934 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
936 goto nla_put_failure;
938 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
939 c->radar_detect_widths))
940 goto nla_put_failure;
942 nla_nest_end(msg, nl_combi);
945 nla_nest_end(msg, nl_combis);
953 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
956 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
957 struct nlattr *nl_tcp;
962 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
966 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
967 tcp->data_payload_max))
970 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
971 tcp->data_payload_max))
974 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
977 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
978 sizeof(*tcp->tok), tcp->tok))
981 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
982 tcp->data_interval_max))
985 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
986 tcp->wake_payload_max))
989 nla_nest_end(msg, nl_tcp);
993 static int nl80211_send_wowlan(struct sk_buff *msg,
994 struct cfg80211_registered_device *dev,
997 struct nlattr *nl_wowlan;
999 if (!dev->wiphy.wowlan.flags && !dev->wiphy.wowlan.n_patterns)
1002 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1006 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1007 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1008 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1009 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1010 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1011 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1012 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1013 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1014 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1015 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1016 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1017 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1018 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1019 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1020 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1021 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1024 if (dev->wiphy.wowlan.n_patterns) {
1025 struct nl80211_wowlan_pattern_support pat = {
1026 .max_patterns = dev->wiphy.wowlan.n_patterns,
1027 .min_pattern_len = dev->wiphy.wowlan.pattern_min_len,
1028 .max_pattern_len = dev->wiphy.wowlan.pattern_max_len,
1029 .max_pkt_offset = dev->wiphy.wowlan.max_pkt_offset,
1032 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1037 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1040 nla_nest_end(msg, nl_wowlan);
1046 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1047 struct ieee80211_supported_band *sband)
1049 struct nlattr *nl_rates, *nl_rate;
1050 struct ieee80211_rate *rate;
1054 if (sband->ht_cap.ht_supported &&
1055 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1056 sizeof(sband->ht_cap.mcs),
1057 &sband->ht_cap.mcs) ||
1058 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1059 sband->ht_cap.cap) ||
1060 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1061 sband->ht_cap.ampdu_factor) ||
1062 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1063 sband->ht_cap.ampdu_density)))
1067 if (sband->vht_cap.vht_supported &&
1068 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1069 sizeof(sband->vht_cap.vht_mcs),
1070 &sband->vht_cap.vht_mcs) ||
1071 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1072 sband->vht_cap.cap)))
1076 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1080 for (i = 0; i < sband->n_bitrates; i++) {
1081 nl_rate = nla_nest_start(msg, i);
1085 rate = &sband->bitrates[i];
1086 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1089 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1091 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1094 nla_nest_end(msg, nl_rate);
1097 nla_nest_end(msg, nl_rates);
1103 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1104 const struct ieee80211_txrx_stypes *mgmt_stypes)
1107 struct nlattr *nl_ftypes, *nl_ifs;
1108 enum nl80211_iftype ift;
1114 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1118 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1119 nl_ftypes = nla_nest_start(msg, ift);
1123 stypes = mgmt_stypes[ift].tx;
1126 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1127 (i << 4) | IEEE80211_FTYPE_MGMT))
1132 nla_nest_end(msg, nl_ftypes);
1135 nla_nest_end(msg, nl_ifs);
1137 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1141 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1142 nl_ftypes = nla_nest_start(msg, ift);
1146 stypes = mgmt_stypes[ift].rx;
1149 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1150 (i << 4) | IEEE80211_FTYPE_MGMT))
1155 nla_nest_end(msg, nl_ftypes);
1157 nla_nest_end(msg, nl_ifs);
1162 static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1163 struct sk_buff *msg, u32 portid, u32 seq,
1164 int flags, bool split, long *split_start,
1165 long *band_start, long *chan_start)
1168 struct nlattr *nl_bands, *nl_band;
1169 struct nlattr *nl_freqs, *nl_freq;
1170 struct nlattr *nl_cmds;
1171 enum ieee80211_band band;
1172 struct ieee80211_channel *chan;
1174 const struct ieee80211_txrx_stypes *mgmt_stypes =
1175 dev->wiphy.mgmt_stypes;
1176 long start = 0, start_chan = 0, start_band = 0;
1179 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1183 /* allow always using the variables */
1185 split_start = &start;
1186 band_start = &start_band;
1187 chan_start = &start_chan;
1190 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1191 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1192 wiphy_name(&dev->wiphy)) ||
1193 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1194 cfg80211_rdev_list_generation))
1195 goto nla_put_failure;
1197 switch (*split_start) {
1199 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1200 dev->wiphy.retry_short) ||
1201 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1202 dev->wiphy.retry_long) ||
1203 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1204 dev->wiphy.frag_threshold) ||
1205 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1206 dev->wiphy.rts_threshold) ||
1207 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1208 dev->wiphy.coverage_class) ||
1209 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1210 dev->wiphy.max_scan_ssids) ||
1211 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1212 dev->wiphy.max_sched_scan_ssids) ||
1213 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1214 dev->wiphy.max_scan_ie_len) ||
1215 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1216 dev->wiphy.max_sched_scan_ie_len) ||
1217 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1218 dev->wiphy.max_match_sets))
1219 goto nla_put_failure;
1221 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1222 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1223 goto nla_put_failure;
1224 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1225 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1226 goto nla_put_failure;
1227 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1228 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1229 goto nla_put_failure;
1230 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1231 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1232 goto nla_put_failure;
1233 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1234 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1235 goto nla_put_failure;
1236 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1237 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1238 goto nla_put_failure;
1244 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1245 sizeof(u32) * dev->wiphy.n_cipher_suites,
1246 dev->wiphy.cipher_suites))
1247 goto nla_put_failure;
1249 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1250 dev->wiphy.max_num_pmkids))
1251 goto nla_put_failure;
1253 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1254 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1255 goto nla_put_failure;
1257 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1258 dev->wiphy.available_antennas_tx) ||
1259 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1260 dev->wiphy.available_antennas_rx))
1261 goto nla_put_failure;
1263 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1264 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1265 dev->wiphy.probe_resp_offload))
1266 goto nla_put_failure;
1268 if ((dev->wiphy.available_antennas_tx ||
1269 dev->wiphy.available_antennas_rx) &&
1270 dev->ops->get_antenna) {
1271 u32 tx_ant = 0, rx_ant = 0;
1273 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1275 if (nla_put_u32(msg,
1276 NL80211_ATTR_WIPHY_ANTENNA_TX,
1279 NL80211_ATTR_WIPHY_ANTENNA_RX,
1281 goto nla_put_failure;
1289 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1290 dev->wiphy.interface_modes))
1291 goto nla_put_failure;
1296 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1298 goto nla_put_failure;
1300 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1301 struct ieee80211_supported_band *sband;
1303 sband = dev->wiphy.bands[band];
1308 nl_band = nla_nest_start(msg, band);
1310 goto nla_put_failure;
1312 switch (*chan_start) {
1314 if (nl80211_send_band_rateinfo(msg, sband))
1315 goto nla_put_failure;
1320 /* add frequencies */
1321 nl_freqs = nla_nest_start(
1322 msg, NL80211_BAND_ATTR_FREQS);
1324 goto nla_put_failure;
1326 for (i = *chan_start - 1;
1327 i < sband->n_channels;
1329 nl_freq = nla_nest_start(msg, i);
1331 goto nla_put_failure;
1333 chan = &sband->channels[i];
1335 if (nl80211_msg_put_channel(msg, chan,
1337 goto nla_put_failure;
1339 nla_nest_end(msg, nl_freq);
1343 if (i < sband->n_channels)
1344 *chan_start = i + 2;
1347 nla_nest_end(msg, nl_freqs);
1350 nla_nest_end(msg, nl_band);
1353 /* start again here */
1359 nla_nest_end(msg, nl_bands);
1361 if (band < IEEE80211_NUM_BANDS)
1362 *band_start = band + 1;
1366 /* if bands & channels are done, continue outside */
1367 if (*band_start == 0 && *chan_start == 0)
1372 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1374 goto nla_put_failure;
1377 #define CMD(op, n) \
1379 if (dev->ops->op) { \
1381 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1382 goto nla_put_failure; \
1386 CMD(add_virtual_intf, NEW_INTERFACE);
1387 CMD(change_virtual_intf, SET_INTERFACE);
1388 CMD(add_key, NEW_KEY);
1389 CMD(start_ap, START_AP);
1390 CMD(add_station, NEW_STATION);
1391 CMD(add_mpath, NEW_MPATH);
1392 CMD(update_mesh_config, SET_MESH_CONFIG);
1393 CMD(change_bss, SET_BSS);
1394 CMD(auth, AUTHENTICATE);
1395 CMD(assoc, ASSOCIATE);
1396 CMD(deauth, DEAUTHENTICATE);
1397 CMD(disassoc, DISASSOCIATE);
1398 CMD(join_ibss, JOIN_IBSS);
1399 CMD(join_mesh, JOIN_MESH);
1400 CMD(set_pmksa, SET_PMKSA);
1401 CMD(del_pmksa, DEL_PMKSA);
1402 CMD(flush_pmksa, FLUSH_PMKSA);
1403 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1404 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1405 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1406 CMD(mgmt_tx, FRAME);
1407 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1408 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1410 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1411 goto nla_put_failure;
1413 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1414 dev->ops->join_mesh) {
1416 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1417 goto nla_put_failure;
1419 CMD(set_wds_peer, SET_WDS_PEER);
1420 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1421 CMD(tdls_mgmt, TDLS_MGMT);
1422 CMD(tdls_oper, TDLS_OPER);
1424 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1425 CMD(sched_scan_start, START_SCHED_SCAN);
1426 CMD(probe_client, PROBE_CLIENT);
1427 CMD(set_noack_map, SET_NOACK_MAP);
1428 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1430 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1431 goto nla_put_failure;
1433 CMD(start_p2p_device, START_P2P_DEVICE);
1434 CMD(set_mcast_rate, SET_MCAST_RATE);
1436 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1437 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1440 #ifdef CONFIG_NL80211_TESTMODE
1441 CMD(testmode_cmd, TESTMODE);
1446 if (dev->ops->connect || dev->ops->auth) {
1448 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1449 goto nla_put_failure;
1452 if (dev->ops->disconnect || dev->ops->deauth) {
1454 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1455 goto nla_put_failure;
1458 nla_nest_end(msg, nl_cmds);
1463 if (dev->ops->remain_on_channel &&
1464 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1466 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1467 dev->wiphy.max_remain_on_channel_duration))
1468 goto nla_put_failure;
1470 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1471 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1472 goto nla_put_failure;
1474 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1475 goto nla_put_failure;
1481 if (nl80211_send_wowlan(msg, dev, split))
1482 goto nla_put_failure;
1490 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1491 dev->wiphy.software_iftypes))
1492 goto nla_put_failure;
1494 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
1495 goto nla_put_failure;
1501 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1502 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1503 dev->wiphy.ap_sme_capa))
1504 goto nla_put_failure;
1506 features = dev->wiphy.features;
1508 * We can only add the per-channel limit information if the
1509 * dump is split, otherwise it makes it too big. Therefore
1510 * only advertise it in that case.
1513 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1514 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1515 goto nla_put_failure;
1517 if (dev->wiphy.ht_capa_mod_mask &&
1518 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1519 sizeof(*dev->wiphy.ht_capa_mod_mask),
1520 dev->wiphy.ht_capa_mod_mask))
1521 goto nla_put_failure;
1523 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1524 dev->wiphy.max_acl_mac_addrs &&
1525 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1526 dev->wiphy.max_acl_mac_addrs))
1527 goto nla_put_failure;
1529 if (dev->wiphy.n_vendor_commands) {
1530 const struct nl80211_vendor_cmd_info *info;
1531 struct nlattr *nested;
1533 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1535 goto nla_put_failure;
1537 for (i = 0; i < dev->wiphy.n_vendor_commands; i++) {
1538 info = &dev->wiphy.vendor_commands[i].info;
1539 if (nla_put(msg, i + 1, sizeof(*info), info))
1540 goto nla_put_failure;
1542 nla_nest_end(msg, nested);
1545 if (dev->wiphy.n_vendor_events) {
1546 const struct nl80211_vendor_cmd_info *info;
1547 struct nlattr *nested;
1549 nested = nla_nest_start(msg,
1550 NL80211_ATTR_VENDOR_EVENTS);
1552 goto nla_put_failure;
1554 for (i = 0; i < dev->wiphy.n_vendor_events; i++) {
1555 info = &dev->wiphy.vendor_events[i];
1556 if (nla_put(msg, i + 1, sizeof(*info), info))
1557 goto nla_put_failure;
1559 nla_nest_end(msg, nested);
1563 * Any information below this point is only available to
1564 * applications that can deal with it being split. This
1565 * helps ensure that newly added capabilities don't break
1566 * older tools by overrunning their buffers.
1568 * We still increment split_start so that in the split
1569 * case we'll continue with more data in the next round,
1570 * but break unconditionally so unsplit data stops here.
1575 if (dev->wiphy.extended_capabilities &&
1576 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1577 dev->wiphy.extended_capabilities_len,
1578 dev->wiphy.extended_capabilities) ||
1579 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1580 dev->wiphy.extended_capabilities_len,
1581 dev->wiphy.extended_capabilities_mask)))
1582 goto nla_put_failure;
1584 if (dev->wiphy.vht_capa_mod_mask &&
1585 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1586 sizeof(*dev->wiphy.vht_capa_mod_mask),
1587 dev->wiphy.vht_capa_mod_mask))
1588 goto nla_put_failure;
1594 return genlmsg_end(msg, hdr);
1597 genlmsg_cancel(msg, hdr);
1601 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1604 int start = cb->args[0];
1605 struct cfg80211_registered_device *dev;
1606 s64 filter_wiphy = -1;
1611 /* will be zeroed in nlmsg_parse() */
1612 tb = kmalloc(sizeof(*tb) * (NL80211_ATTR_MAX + 1), GFP_KERNEL);
1616 mutex_lock(&cfg80211_mutex);
1617 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1618 tb, NL80211_ATTR_MAX, nl80211_policy);
1620 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1621 if (tb[NL80211_ATTR_WIPHY])
1622 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1623 if (tb[NL80211_ATTR_WDEV])
1624 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1625 if (tb[NL80211_ATTR_IFINDEX]) {
1626 struct net_device *netdev;
1627 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1629 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1631 mutex_unlock(&cfg80211_mutex);
1635 if (netdev->ieee80211_ptr) {
1637 netdev->ieee80211_ptr->wiphy);
1638 filter_wiphy = dev->wiphy_idx;
1645 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1646 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1650 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1652 /* attempt to fit multiple wiphy data chunks into the skb */
1654 ret = nl80211_send_wiphy(dev, skb,
1655 NETLINK_CB(cb->skb).portid,
1658 split, &cb->args[1],
1663 * If sending the wiphy data didn't fit (ENOBUFS
1664 * or EMSGSIZE returned), this SKB is still
1665 * empty (so it's not too big because another
1666 * wiphy dataset is already in the skb) and
1667 * we've not tried to adjust the dump allocation
1668 * yet ... then adjust the alloc size to be
1669 * bigger, and return 1 but with the empty skb.
1670 * This results in an empty message being RX'ed
1671 * in userspace, but that is ignored.
1673 * We can then retry with the larger buffer.
1675 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1677 cb->min_dump_alloc < 4096) {
1678 cb->min_dump_alloc = 4096;
1679 mutex_unlock(&cfg80211_mutex);
1685 } while (cb->args[1] > 0);
1688 mutex_unlock(&cfg80211_mutex);
1695 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1697 struct sk_buff *msg;
1698 struct cfg80211_registered_device *dev = info->user_ptr[0];
1700 msg = nlmsg_new(4096, GFP_KERNEL);
1704 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1705 false, NULL, NULL, NULL) < 0) {
1710 return genlmsg_reply(msg, info);
1713 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1714 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1715 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1716 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1717 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1718 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1721 static int parse_txq_params(struct nlattr *tb[],
1722 struct ieee80211_txq_params *txq_params)
1724 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1725 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1726 !tb[NL80211_TXQ_ATTR_AIFS])
1729 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1730 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1731 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1732 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1733 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1735 if (txq_params->ac >= NL80211_NUM_ACS)
1741 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1744 * You can only set the channel explicitly for WDS interfaces,
1745 * all others have their channel managed via their respective
1746 * "establish a connection" command (connect, join, ...)
1748 * For AP/GO and mesh mode, the channel can be set with the
1749 * channel userspace API, but is only stored and passed to the
1750 * low-level driver when the AP starts or the mesh is joined.
1751 * This is for backward compatibility, userspace can also give
1752 * the channel in the start-ap or join-mesh commands instead.
1754 * Monitors are special as they are normally slaved to
1755 * whatever else is going on, so they have their own special
1756 * operation to set the monitor channel if possible.
1759 wdev->iftype == NL80211_IFTYPE_AP ||
1760 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1761 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1762 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1765 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1766 struct genl_info *info,
1767 struct cfg80211_chan_def *chandef)
1771 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1774 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1776 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1777 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1778 chandef->center_freq1 = control_freq;
1779 chandef->center_freq2 = 0;
1781 /* Primary channel not allowed */
1782 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1785 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1786 enum nl80211_channel_type chantype;
1788 chantype = nla_get_u32(
1789 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1792 case NL80211_CHAN_NO_HT:
1793 case NL80211_CHAN_HT20:
1794 case NL80211_CHAN_HT40PLUS:
1795 case NL80211_CHAN_HT40MINUS:
1796 cfg80211_chandef_create(chandef, chandef->chan,
1802 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1804 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1805 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1806 chandef->center_freq1 =
1808 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1809 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1810 chandef->center_freq2 =
1812 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1815 if (!cfg80211_chandef_valid(chandef))
1818 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1819 IEEE80211_CHAN_DISABLED))
1825 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1826 struct wireless_dev *wdev,
1827 struct genl_info *info)
1829 struct cfg80211_chan_def chandef;
1831 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1834 iftype = wdev->iftype;
1836 if (!nl80211_can_set_dev_channel(wdev))
1839 result = nl80211_parse_chandef(rdev, info, &chandef);
1843 mutex_lock(&rdev->devlist_mtx);
1845 case NL80211_IFTYPE_AP:
1846 case NL80211_IFTYPE_P2P_GO:
1847 if (wdev->beacon_interval) {
1851 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1855 wdev->preset_chandef = chandef;
1858 case NL80211_IFTYPE_MESH_POINT:
1859 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1861 case NL80211_IFTYPE_MONITOR:
1862 result = cfg80211_set_monitor_channel(rdev, &chandef);
1867 mutex_unlock(&rdev->devlist_mtx);
1872 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1875 struct net_device *netdev = info->user_ptr[1];
1877 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1880 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1882 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1883 struct net_device *dev = info->user_ptr[1];
1884 struct wireless_dev *wdev = dev->ieee80211_ptr;
1887 if (!info->attrs[NL80211_ATTR_MAC])
1890 if (netif_running(dev))
1893 if (!rdev->ops->set_wds_peer)
1896 if (wdev->iftype != NL80211_IFTYPE_WDS)
1899 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1900 return rdev_set_wds_peer(rdev, dev, bssid);
1904 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1906 struct cfg80211_registered_device *rdev;
1907 struct net_device *netdev = NULL;
1908 struct wireless_dev *wdev;
1909 int result = 0, rem_txq_params = 0;
1910 struct nlattr *nl_txq_params;
1912 u8 retry_short = 0, retry_long = 0;
1913 u32 frag_threshold = 0, rts_threshold = 0;
1914 u8 coverage_class = 0;
1917 * Try to find the wiphy and netdev. Normally this
1918 * function shouldn't need the netdev, but this is
1919 * done for backward compatibility -- previously
1920 * setting the channel was done per wiphy, but now
1921 * it is per netdev. Previous userland like hostapd
1922 * also passed a netdev to set_wiphy, so that it is
1923 * possible to let that go to the right netdev!
1925 mutex_lock(&cfg80211_mutex);
1927 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1928 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1930 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1931 if (netdev && netdev->ieee80211_ptr) {
1932 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1933 mutex_lock(&rdev->mtx);
1939 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1942 mutex_unlock(&cfg80211_mutex);
1943 return PTR_ERR(rdev);
1949 mutex_lock(&rdev->mtx);
1951 wdev = netdev->ieee80211_ptr;
1954 * end workaround code, by now the rdev is available
1955 * and locked, and wdev may or may not be NULL.
1958 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1959 result = cfg80211_dev_rename(
1960 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1962 mutex_unlock(&cfg80211_mutex);
1967 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1968 struct ieee80211_txq_params txq_params;
1969 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1971 if (!rdev->ops->set_txq_params) {
1972 result = -EOPNOTSUPP;
1981 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1982 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1987 if (!netif_running(netdev)) {
1992 nla_for_each_nested(nl_txq_params,
1993 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1995 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1996 nla_data(nl_txq_params),
1997 nla_len(nl_txq_params),
1999 result = parse_txq_params(tb, &txq_params);
2003 result = rdev_set_txq_params(rdev, netdev,
2010 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2011 result = __nl80211_set_channel(rdev,
2012 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2018 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2019 struct wireless_dev *txp_wdev = wdev;
2020 enum nl80211_tx_power_setting type;
2023 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2026 if (!rdev->ops->set_tx_power) {
2027 result = -EOPNOTSUPP;
2031 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2032 type = nla_get_u32(info->attrs[idx]);
2034 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2035 (type != NL80211_TX_POWER_AUTOMATIC)) {
2040 if (type != NL80211_TX_POWER_AUTOMATIC) {
2041 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2042 mbm = nla_get_u32(info->attrs[idx]);
2045 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2050 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2051 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2053 if ((!rdev->wiphy.available_antennas_tx &&
2054 !rdev->wiphy.available_antennas_rx) ||
2055 !rdev->ops->set_antenna) {
2056 result = -EOPNOTSUPP;
2060 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2061 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2063 /* reject antenna configurations which don't match the
2064 * available antenna masks, except for the "all" mask */
2065 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2066 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
2071 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2072 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2074 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2081 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2082 retry_short = nla_get_u8(
2083 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2084 if (retry_short == 0) {
2088 changed |= WIPHY_PARAM_RETRY_SHORT;
2091 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2092 retry_long = nla_get_u8(
2093 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2094 if (retry_long == 0) {
2098 changed |= WIPHY_PARAM_RETRY_LONG;
2101 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2102 frag_threshold = nla_get_u32(
2103 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2104 if (frag_threshold < 256) {
2108 if (frag_threshold != (u32) -1) {
2110 * Fragments (apart from the last one) are required to
2111 * have even length. Make the fragmentation code
2112 * simpler by stripping LSB should someone try to use
2113 * odd threshold value.
2115 frag_threshold &= ~0x1;
2117 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2120 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2121 rts_threshold = nla_get_u32(
2122 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2123 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2126 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2127 coverage_class = nla_get_u8(
2128 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2129 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2133 u8 old_retry_short, old_retry_long;
2134 u32 old_frag_threshold, old_rts_threshold;
2135 u8 old_coverage_class;
2137 if (!rdev->ops->set_wiphy_params) {
2138 result = -EOPNOTSUPP;
2142 old_retry_short = rdev->wiphy.retry_short;
2143 old_retry_long = rdev->wiphy.retry_long;
2144 old_frag_threshold = rdev->wiphy.frag_threshold;
2145 old_rts_threshold = rdev->wiphy.rts_threshold;
2146 old_coverage_class = rdev->wiphy.coverage_class;
2148 if (changed & WIPHY_PARAM_RETRY_SHORT)
2149 rdev->wiphy.retry_short = retry_short;
2150 if (changed & WIPHY_PARAM_RETRY_LONG)
2151 rdev->wiphy.retry_long = retry_long;
2152 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2153 rdev->wiphy.frag_threshold = frag_threshold;
2154 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2155 rdev->wiphy.rts_threshold = rts_threshold;
2156 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2157 rdev->wiphy.coverage_class = coverage_class;
2159 result = rdev_set_wiphy_params(rdev, changed);
2161 rdev->wiphy.retry_short = old_retry_short;
2162 rdev->wiphy.retry_long = old_retry_long;
2163 rdev->wiphy.frag_threshold = old_frag_threshold;
2164 rdev->wiphy.rts_threshold = old_rts_threshold;
2165 rdev->wiphy.coverage_class = old_coverage_class;
2170 mutex_unlock(&rdev->mtx);
2176 static inline u64 wdev_id(struct wireless_dev *wdev)
2178 return (u64)wdev->identifier |
2179 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2182 static int nl80211_send_chandef(struct sk_buff *msg,
2183 struct cfg80211_chan_def *chandef)
2185 WARN_ON(!cfg80211_chandef_valid(chandef));
2187 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2188 chandef->chan->center_freq))
2190 switch (chandef->width) {
2191 case NL80211_CHAN_WIDTH_20_NOHT:
2192 case NL80211_CHAN_WIDTH_20:
2193 case NL80211_CHAN_WIDTH_40:
2194 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2195 cfg80211_get_chandef_type(chandef)))
2201 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2203 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2205 if (chandef->center_freq2 &&
2206 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2211 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2212 struct cfg80211_registered_device *rdev,
2213 struct wireless_dev *wdev)
2215 struct net_device *dev = wdev->netdev;
2218 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2223 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2224 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2225 goto nla_put_failure;
2227 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2228 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2229 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2230 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2231 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2232 rdev->devlist_generation ^
2233 (cfg80211_rdev_list_generation << 2)))
2234 goto nla_put_failure;
2236 if (rdev->ops->get_channel) {
2238 struct cfg80211_chan_def chandef;
2240 ret = rdev_get_channel(rdev, wdev, &chandef);
2242 if (nl80211_send_chandef(msg, &chandef))
2243 goto nla_put_failure;
2247 if (wdev->ssid_len) {
2248 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2249 goto nla_put_failure;
2252 return genlmsg_end(msg, hdr);
2255 genlmsg_cancel(msg, hdr);
2259 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2263 int wp_start = cb->args[0];
2264 int if_start = cb->args[1];
2265 struct cfg80211_registered_device *rdev;
2266 struct wireless_dev *wdev;
2268 mutex_lock(&cfg80211_mutex);
2269 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2270 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2272 if (wp_idx < wp_start) {
2278 mutex_lock(&rdev->devlist_mtx);
2279 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2280 if (if_idx < if_start) {
2284 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2285 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2287 mutex_unlock(&rdev->devlist_mtx);
2292 mutex_unlock(&rdev->devlist_mtx);
2297 mutex_unlock(&cfg80211_mutex);
2299 cb->args[0] = wp_idx;
2300 cb->args[1] = if_idx;
2305 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2307 struct sk_buff *msg;
2308 struct cfg80211_registered_device *dev = info->user_ptr[0];
2309 struct wireless_dev *wdev = info->user_ptr[1];
2311 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2315 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2321 return genlmsg_reply(msg, info);
2324 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2325 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2326 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2327 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2328 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2329 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2332 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2334 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2342 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2343 nla, mntr_flags_policy))
2346 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2348 *mntrflags |= (1<<flag);
2353 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2354 struct net_device *netdev, u8 use_4addr,
2355 enum nl80211_iftype iftype)
2358 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2364 case NL80211_IFTYPE_AP_VLAN:
2365 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2368 case NL80211_IFTYPE_STATION:
2369 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2379 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2382 struct vif_params params;
2384 enum nl80211_iftype otype, ntype;
2385 struct net_device *dev = info->user_ptr[1];
2386 u32 _flags, *flags = NULL;
2387 bool change = false;
2389 memset(¶ms, 0, sizeof(params));
2391 otype = ntype = dev->ieee80211_ptr->iftype;
2393 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2394 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2397 if (ntype > NL80211_IFTYPE_MAX)
2401 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2402 struct wireless_dev *wdev = dev->ieee80211_ptr;
2404 if (ntype != NL80211_IFTYPE_MESH_POINT)
2406 if (netif_running(dev))
2410 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2411 IEEE80211_MAX_MESH_ID_LEN);
2412 wdev->mesh_id_up_len =
2413 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2414 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2415 wdev->mesh_id_up_len);
2419 if (info->attrs[NL80211_ATTR_4ADDR]) {
2420 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2422 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2426 params.use_4addr = -1;
2429 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2430 if (ntype != NL80211_IFTYPE_MONITOR)
2432 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2442 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2446 if (!err && params.use_4addr != -1)
2447 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2452 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2454 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2455 struct vif_params params;
2456 struct wireless_dev *wdev;
2457 struct sk_buff *msg;
2459 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2462 memset(¶ms, 0, sizeof(params));
2464 if (!info->attrs[NL80211_ATTR_IFNAME])
2467 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2468 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2469 if (type > NL80211_IFTYPE_MAX)
2473 if (!rdev->ops->add_virtual_intf ||
2474 !(rdev->wiphy.interface_modes & (1 << type)))
2477 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2478 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2480 if (!is_valid_ether_addr(params.macaddr))
2481 return -EADDRNOTAVAIL;
2484 if (info->attrs[NL80211_ATTR_4ADDR]) {
2485 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2486 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2491 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2495 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2496 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2498 wdev = rdev_add_virtual_intf(rdev,
2499 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2500 type, err ? NULL : &flags, ¶ms);
2503 return PTR_ERR(wdev);
2507 case NL80211_IFTYPE_MESH_POINT:
2508 if (!info->attrs[NL80211_ATTR_MESH_ID])
2511 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2512 IEEE80211_MAX_MESH_ID_LEN);
2513 wdev->mesh_id_up_len =
2514 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2515 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2516 wdev->mesh_id_up_len);
2519 case NL80211_IFTYPE_P2P_DEVICE:
2521 * P2P Device doesn't have a netdev, so doesn't go
2522 * through the netdev notifier and must be added here
2524 mutex_init(&wdev->mtx);
2525 INIT_LIST_HEAD(&wdev->event_list);
2526 spin_lock_init(&wdev->event_lock);
2527 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2528 spin_lock_init(&wdev->mgmt_registrations_lock);
2530 mutex_lock(&rdev->devlist_mtx);
2531 wdev->identifier = ++rdev->wdev_id;
2532 list_add_rcu(&wdev->list, &rdev->wdev_list);
2533 rdev->devlist_generation++;
2534 mutex_unlock(&rdev->devlist_mtx);
2540 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2546 return genlmsg_reply(msg, info);
2549 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2551 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2552 struct wireless_dev *wdev = info->user_ptr[1];
2554 if (!rdev->ops->del_virtual_intf)
2558 * If we remove a wireless device without a netdev then clear
2559 * user_ptr[1] so that nl80211_post_doit won't dereference it
2560 * to check if it needs to do dev_put(). Otherwise it crashes
2561 * since the wdev has been freed, unlike with a netdev where
2562 * we need the dev_put() for the netdev to really be freed.
2565 info->user_ptr[1] = NULL;
2567 return rdev_del_virtual_intf(rdev, wdev);
2570 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2572 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2573 struct net_device *dev = info->user_ptr[1];
2576 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2579 if (!rdev->ops->set_noack_map)
2582 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2584 return rdev_set_noack_map(rdev, dev, noack_map);
2587 struct get_key_cookie {
2588 struct sk_buff *msg;
2593 static void get_key_callback(void *c, struct key_params *params)
2596 struct get_key_cookie *cookie = c;
2599 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2600 params->key_len, params->key)) ||
2602 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2603 params->seq_len, params->seq)) ||
2605 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2607 goto nla_put_failure;
2609 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2611 goto nla_put_failure;
2614 nla_put(cookie->msg, NL80211_KEY_DATA,
2615 params->key_len, params->key)) ||
2617 nla_put(cookie->msg, NL80211_KEY_SEQ,
2618 params->seq_len, params->seq)) ||
2620 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2622 goto nla_put_failure;
2624 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2625 goto nla_put_failure;
2627 nla_nest_end(cookie->msg, key);
2634 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2636 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2638 struct net_device *dev = info->user_ptr[1];
2640 const u8 *mac_addr = NULL;
2642 struct get_key_cookie cookie = {
2646 struct sk_buff *msg;
2648 if (info->attrs[NL80211_ATTR_KEY_IDX])
2649 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2654 if (info->attrs[NL80211_ATTR_MAC])
2655 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2657 pairwise = !!mac_addr;
2658 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2659 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2660 if (kt >= NUM_NL80211_KEYTYPES)
2662 if (kt != NL80211_KEYTYPE_GROUP &&
2663 kt != NL80211_KEYTYPE_PAIRWISE)
2665 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2668 if (!rdev->ops->get_key)
2671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2675 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2676 NL80211_CMD_NEW_KEY);
2678 goto nla_put_failure;
2681 cookie.idx = key_idx;
2683 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2684 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2685 goto nla_put_failure;
2687 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2688 goto nla_put_failure;
2690 if (pairwise && mac_addr &&
2691 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2694 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2701 goto nla_put_failure;
2703 genlmsg_end(msg, hdr);
2704 return genlmsg_reply(msg, info);
2713 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2716 struct key_parse key;
2718 struct net_device *dev = info->user_ptr[1];
2720 err = nl80211_parse_key(info, &key);
2727 /* only support setting default key */
2728 if (!key.def && !key.defmgmt)
2731 wdev_lock(dev->ieee80211_ptr);
2734 if (!rdev->ops->set_default_key) {
2739 err = nl80211_key_allowed(dev->ieee80211_ptr);
2743 err = rdev_set_default_key(rdev, dev, key.idx,
2744 key.def_uni, key.def_multi);
2749 #ifdef CONFIG_CFG80211_WEXT
2750 dev->ieee80211_ptr->wext.default_key = key.idx;
2753 if (key.def_uni || !key.def_multi) {
2758 if (!rdev->ops->set_default_mgmt_key) {
2763 err = nl80211_key_allowed(dev->ieee80211_ptr);
2767 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2771 #ifdef CONFIG_CFG80211_WEXT
2772 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2777 wdev_unlock(dev->ieee80211_ptr);
2782 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2786 struct net_device *dev = info->user_ptr[1];
2787 struct key_parse key;
2788 const u8 *mac_addr = NULL;
2790 err = nl80211_parse_key(info, &key);
2797 if (info->attrs[NL80211_ATTR_MAC])
2798 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2800 if (key.type == -1) {
2802 key.type = NL80211_KEYTYPE_PAIRWISE;
2804 key.type = NL80211_KEYTYPE_GROUP;
2808 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2809 key.type != NL80211_KEYTYPE_GROUP)
2812 if (!rdev->ops->add_key)
2815 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2816 key.type == NL80211_KEYTYPE_PAIRWISE,
2820 wdev_lock(dev->ieee80211_ptr);
2821 err = nl80211_key_allowed(dev->ieee80211_ptr);
2823 err = rdev_add_key(rdev, dev, key.idx,
2824 key.type == NL80211_KEYTYPE_PAIRWISE,
2826 wdev_unlock(dev->ieee80211_ptr);
2831 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2833 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2835 struct net_device *dev = info->user_ptr[1];
2836 u8 *mac_addr = NULL;
2837 struct key_parse key;
2839 err = nl80211_parse_key(info, &key);
2843 if (info->attrs[NL80211_ATTR_MAC])
2844 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2846 if (key.type == -1) {
2848 key.type = NL80211_KEYTYPE_PAIRWISE;
2850 key.type = NL80211_KEYTYPE_GROUP;
2854 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2855 key.type != NL80211_KEYTYPE_GROUP)
2858 if (!rdev->ops->del_key)
2861 wdev_lock(dev->ieee80211_ptr);
2862 err = nl80211_key_allowed(dev->ieee80211_ptr);
2864 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2865 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2869 err = rdev_del_key(rdev, dev, key.idx,
2870 key.type == NL80211_KEYTYPE_PAIRWISE,
2873 #ifdef CONFIG_CFG80211_WEXT
2875 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2876 dev->ieee80211_ptr->wext.default_key = -1;
2877 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2878 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2881 wdev_unlock(dev->ieee80211_ptr);
2886 /* This function returns an error or the number of nested attributes */
2887 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2889 struct nlattr *attr;
2890 int n_entries = 0, tmp;
2892 nla_for_each_nested(attr, nl_attr, tmp) {
2893 if (nla_len(attr) != ETH_ALEN)
2903 * This function parses ACL information and allocates memory for ACL data.
2904 * On successful return, the calling function is responsible to free the
2905 * ACL buffer returned by this function.
2907 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2908 struct genl_info *info)
2910 enum nl80211_acl_policy acl_policy;
2911 struct nlattr *attr;
2912 struct cfg80211_acl_data *acl;
2913 int i = 0, n_entries, tmp;
2915 if (!wiphy->max_acl_mac_addrs)
2916 return ERR_PTR(-EOPNOTSUPP);
2918 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2919 return ERR_PTR(-EINVAL);
2921 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2922 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2923 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2924 return ERR_PTR(-EINVAL);
2926 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2927 return ERR_PTR(-EINVAL);
2929 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2931 return ERR_PTR(n_entries);
2933 if (n_entries > wiphy->max_acl_mac_addrs)
2934 return ERR_PTR(-ENOTSUPP);
2936 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2939 return ERR_PTR(-ENOMEM);
2941 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2942 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2946 acl->n_acl_entries = n_entries;
2947 acl->acl_policy = acl_policy;
2952 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2954 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2955 struct net_device *dev = info->user_ptr[1];
2956 struct cfg80211_acl_data *acl;
2959 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2960 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2963 if (!dev->ieee80211_ptr->beacon_interval)
2966 acl = parse_acl_data(&rdev->wiphy, info);
2968 return PTR_ERR(acl);
2970 err = rdev_set_mac_acl(rdev, dev, acl);
2977 static int nl80211_parse_beacon(struct genl_info *info,
2978 struct cfg80211_beacon_data *bcn)
2980 bool haveinfo = false;
2982 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2983 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2984 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2985 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2988 memset(bcn, 0, sizeof(*bcn));
2990 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2991 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2992 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2998 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2999 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
3001 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
3008 if (info->attrs[NL80211_ATTR_IE]) {
3009 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
3010 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3013 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3014 bcn->proberesp_ies =
3015 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
3016 bcn->proberesp_ies_len =
3017 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
3020 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3021 bcn->assocresp_ies =
3022 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3023 bcn->assocresp_ies_len =
3024 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3027 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
3029 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
3030 bcn->probe_resp_len =
3031 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
3037 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3038 struct cfg80211_ap_settings *params)
3040 struct wireless_dev *wdev;
3043 mutex_lock(&rdev->devlist_mtx);
3045 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3046 if (wdev->iftype != NL80211_IFTYPE_AP &&
3047 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3050 if (!wdev->preset_chandef.chan)
3053 params->chandef = wdev->preset_chandef;
3058 mutex_unlock(&rdev->devlist_mtx);
3063 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3064 enum nl80211_auth_type auth_type,
3065 enum nl80211_commands cmd)
3067 if (auth_type > NL80211_AUTHTYPE_MAX)
3071 case NL80211_CMD_AUTHENTICATE:
3072 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3073 auth_type == NL80211_AUTHTYPE_SAE)
3076 case NL80211_CMD_CONNECT:
3077 case NL80211_CMD_START_AP:
3078 /* SAE not supported yet */
3079 if (auth_type == NL80211_AUTHTYPE_SAE)
3087 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3089 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3090 struct net_device *dev = info->user_ptr[1];
3091 struct wireless_dev *wdev = dev->ieee80211_ptr;
3092 struct cfg80211_ap_settings params;
3094 u8 radar_detect_width = 0;
3096 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3097 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3100 if (!rdev->ops->start_ap)
3103 if (wdev->beacon_interval)
3106 memset(¶ms, 0, sizeof(params));
3108 /* these are required for START_AP */
3109 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3110 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3111 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3114 err = nl80211_parse_beacon(info, ¶ms.beacon);
3118 params.beacon_interval =
3119 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3120 params.dtim_period =
3121 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3123 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3128 * In theory, some of these attributes should be required here
3129 * but since they were not used when the command was originally
3130 * added, keep them optional for old user space programs to let
3131 * them continue to work with drivers that do not need the
3132 * additional information -- drivers must check!
3134 if (info->attrs[NL80211_ATTR_SSID]) {
3135 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3137 nla_len(info->attrs[NL80211_ATTR_SSID]);
3138 if (params.ssid_len == 0 ||
3139 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3143 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3144 params.hidden_ssid = nla_get_u32(
3145 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3146 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3147 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3148 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3152 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3154 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3155 params.auth_type = nla_get_u32(
3156 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3157 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3158 NL80211_CMD_START_AP))
3161 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3163 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3164 NL80211_MAX_NR_CIPHER_SUITES);
3168 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3169 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3171 params.inactivity_timeout = nla_get_u16(
3172 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3175 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3176 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3178 params.p2p_ctwindow =
3179 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3180 if (params.p2p_ctwindow > 127)
3182 if (params.p2p_ctwindow != 0 &&
3183 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3187 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3190 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3192 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3195 params.p2p_opp_ps = tmp;
3196 if (params.p2p_opp_ps != 0 &&
3197 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3201 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3202 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3205 } else if (wdev->preset_chandef.chan) {
3206 params.chandef = wdev->preset_chandef;
3207 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3210 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
3213 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
3217 radar_detect_width = BIT(params.chandef.width);
3218 params.radar_required = true;
3221 mutex_lock(&rdev->devlist_mtx);
3222 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3223 params.chandef.chan,
3225 radar_detect_width);
3226 mutex_unlock(&rdev->devlist_mtx);
3231 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3232 params.acl = parse_acl_data(&rdev->wiphy, info);
3233 if (IS_ERR(params.acl))
3234 return PTR_ERR(params.acl);
3237 err = rdev_start_ap(rdev, dev, ¶ms);
3239 wdev->preset_chandef = params.chandef;
3240 wdev->beacon_interval = params.beacon_interval;
3241 wdev->channel = params.chandef.chan;
3242 wdev->ssid_len = params.ssid_len;
3243 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3251 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3254 struct net_device *dev = info->user_ptr[1];
3255 struct wireless_dev *wdev = dev->ieee80211_ptr;
3256 struct cfg80211_beacon_data params;
3259 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3260 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3263 if (!rdev->ops->change_beacon)
3266 if (!wdev->beacon_interval)
3269 err = nl80211_parse_beacon(info, ¶ms);
3273 return rdev_change_beacon(rdev, dev, ¶ms);
3276 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3279 struct net_device *dev = info->user_ptr[1];
3281 return cfg80211_stop_ap(rdev, dev);
3284 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3285 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3286 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3287 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3288 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3289 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3290 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3293 static int parse_station_flags(struct genl_info *info,
3294 enum nl80211_iftype iftype,
3295 struct station_parameters *params)
3297 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3302 * Try parsing the new attribute first so userspace
3303 * can specify both for older kernels.
3305 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3307 struct nl80211_sta_flag_update *sta_flags;
3309 sta_flags = nla_data(nla);
3310 params->sta_flags_mask = sta_flags->mask;
3311 params->sta_flags_set = sta_flags->set;
3312 params->sta_flags_set &= params->sta_flags_mask;
3313 if ((params->sta_flags_mask |
3314 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3319 /* if present, parse the old attribute */
3321 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3325 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3326 nla, sta_flags_policy))
3330 * Only allow certain flags for interface types so that
3331 * other attributes are silently ignored. Remember that
3332 * this is backward compatibility code with old userspace
3333 * and shouldn't be hit in other cases anyway.
3336 case NL80211_IFTYPE_AP:
3337 case NL80211_IFTYPE_AP_VLAN:
3338 case NL80211_IFTYPE_P2P_GO:
3339 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3340 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3341 BIT(NL80211_STA_FLAG_WME) |
3342 BIT(NL80211_STA_FLAG_MFP);
3344 case NL80211_IFTYPE_P2P_CLIENT:
3345 case NL80211_IFTYPE_STATION:
3346 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3347 BIT(NL80211_STA_FLAG_TDLS_PEER);
3349 case NL80211_IFTYPE_MESH_POINT:
3350 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3351 BIT(NL80211_STA_FLAG_MFP) |
3352 BIT(NL80211_STA_FLAG_AUTHORIZED);
3357 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3359 params->sta_flags_set |= (1<<flag);
3361 /* no longer support new API additions in old API */
3362 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3370 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3373 struct nlattr *rate;
3377 rate = nla_nest_start(msg, attr);
3381 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3382 bitrate = cfg80211_calculate_bitrate(info);
3383 /* report 16-bit bitrate only if we can */
3384 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3386 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3388 if (bitrate_compat > 0 &&
3389 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3392 if (info->flags & RATE_INFO_FLAGS_MCS) {
3393 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3395 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3396 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3398 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3399 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3401 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3402 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3404 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3406 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3407 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3409 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3410 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3412 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3413 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3415 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3416 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3418 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3419 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3423 nla_nest_end(msg, rate);
3427 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3429 struct cfg80211_registered_device *rdev,
3430 struct net_device *dev,
3431 const u8 *mac_addr, struct station_info *sinfo)
3434 struct nlattr *sinfoattr, *bss_param;
3436 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3440 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3441 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3442 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3443 goto nla_put_failure;
3445 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3447 goto nla_put_failure;
3448 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3449 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3450 sinfo->connected_time))
3451 goto nla_put_failure;
3452 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3453 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3454 sinfo->inactive_time))
3455 goto nla_put_failure;
3456 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3457 STATION_INFO_RX_BYTES64)) &&
3458 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3459 (u32)sinfo->rx_bytes))
3460 goto nla_put_failure;
3461 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3462 STATION_INFO_TX_BYTES64)) &&
3463 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3464 (u32)sinfo->tx_bytes))
3465 goto nla_put_failure;
3466 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3467 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3469 goto nla_put_failure;
3470 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3471 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3473 goto nla_put_failure;
3474 if ((sinfo->filled & STATION_INFO_LLID) &&
3475 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3476 goto nla_put_failure;
3477 if ((sinfo->filled & STATION_INFO_PLID) &&
3478 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3479 goto nla_put_failure;
3480 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3481 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3482 sinfo->plink_state))
3483 goto nla_put_failure;
3484 switch (rdev->wiphy.signal_type) {
3485 case CFG80211_SIGNAL_TYPE_MBM:
3486 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3487 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3489 goto nla_put_failure;
3490 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3491 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3493 goto nla_put_failure;
3498 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3499 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3500 NL80211_STA_INFO_TX_BITRATE))
3501 goto nla_put_failure;
3503 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3504 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3505 NL80211_STA_INFO_RX_BITRATE))
3506 goto nla_put_failure;
3508 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3509 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3511 goto nla_put_failure;
3512 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3513 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3515 goto nla_put_failure;
3516 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3517 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3519 goto nla_put_failure;
3520 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3521 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3523 goto nla_put_failure;
3524 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3525 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3526 sinfo->beacon_loss_count))
3527 goto nla_put_failure;
3528 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3529 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3531 goto nla_put_failure;
3532 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3533 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3535 goto nla_put_failure;
3536 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3537 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3539 goto nla_put_failure;
3540 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3541 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3543 goto nla_put_failure;
3545 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3546 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3547 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3548 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3549 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3550 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3551 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3552 sinfo->bss_param.dtim_period) ||
3553 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3554 sinfo->bss_param.beacon_interval))
3555 goto nla_put_failure;
3557 nla_nest_end(msg, bss_param);
3559 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3560 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3561 sizeof(struct nl80211_sta_flag_update),
3563 goto nla_put_failure;
3564 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3565 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3567 goto nla_put_failure;
3568 nla_nest_end(msg, sinfoattr);
3570 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3571 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3572 sinfo->assoc_req_ies))
3573 goto nla_put_failure;
3575 return genlmsg_end(msg, hdr);
3578 genlmsg_cancel(msg, hdr);
3582 static int nl80211_dump_station(struct sk_buff *skb,
3583 struct netlink_callback *cb)
3585 struct station_info sinfo;
3586 struct cfg80211_registered_device *dev;
3587 struct wireless_dev *wdev;
3588 u8 mac_addr[ETH_ALEN];
3589 int sta_idx = cb->args[2];
3592 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
3596 if (!wdev->netdev) {
3601 if (!dev->ops->dump_station) {
3607 memset(&sinfo, 0, sizeof(sinfo));
3608 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
3615 if (nl80211_send_station(skb,
3616 NETLINK_CB(cb->skb).portid,
3617 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3618 dev, wdev->netdev, mac_addr,
3627 cb->args[2] = sta_idx;
3630 nl80211_finish_wdev_dump(dev);
3635 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3638 struct net_device *dev = info->user_ptr[1];
3639 struct station_info sinfo;
3640 struct sk_buff *msg;
3641 u8 *mac_addr = NULL;
3644 memset(&sinfo, 0, sizeof(sinfo));
3646 if (!info->attrs[NL80211_ATTR_MAC])
3649 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3651 if (!rdev->ops->get_station)
3654 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3658 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3662 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3663 rdev, dev, mac_addr, &sinfo) < 0) {
3668 return genlmsg_reply(msg, info);
3671 int cfg80211_check_station_change(struct wiphy *wiphy,
3672 struct station_parameters *params,
3673 enum cfg80211_station_type statype)
3675 if (params->listen_interval != -1)
3680 /* When you run into this, adjust the code below for the new flag */
3681 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3684 case CFG80211_STA_MESH_PEER_KERNEL:
3685 case CFG80211_STA_MESH_PEER_USER:
3687 * No ignoring the TDLS flag here -- the userspace mesh
3688 * code doesn't have the bug of including TDLS in the
3691 if (params->sta_flags_mask &
3692 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3693 BIT(NL80211_STA_FLAG_MFP) |
3694 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3697 case CFG80211_STA_TDLS_PEER_SETUP:
3698 case CFG80211_STA_TDLS_PEER_ACTIVE:
3699 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3701 /* ignore since it can't change */
3702 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3705 /* disallow mesh-specific things */
3706 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3708 if (params->local_pm)
3710 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3714 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3715 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3716 /* TDLS can't be set, ... */
3717 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3720 * ... but don't bother the driver with it. This works around
3721 * a hostapd/wpa_supplicant issue -- it always includes the
3722 * TLDS_PEER flag in the mask even for AP mode.
3724 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3727 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3728 /* reject other things that can't change */
3729 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3731 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3733 if (params->supported_rates)
3735 if (params->ext_capab || params->ht_capa || params->vht_capa)
3739 if (statype != CFG80211_STA_AP_CLIENT) {
3745 case CFG80211_STA_AP_MLME_CLIENT:
3746 /* Use this only for authorizing/unauthorizing a station */
3747 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3750 case CFG80211_STA_AP_CLIENT:
3751 /* accept only the listed bits */
3752 if (params->sta_flags_mask &
3753 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3754 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3755 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3756 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3757 BIT(NL80211_STA_FLAG_WME) |
3758 BIT(NL80211_STA_FLAG_MFP)))
3761 /* but authenticated/associated only if driver handles it */
3762 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3763 params->sta_flags_mask &
3764 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3765 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3768 case CFG80211_STA_IBSS:
3769 case CFG80211_STA_AP_STA:
3770 /* reject any changes other than AUTHORIZED */
3771 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3774 case CFG80211_STA_TDLS_PEER_SETUP:
3775 /* reject any changes other than AUTHORIZED or WME */
3776 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3777 BIT(NL80211_STA_FLAG_WME)))
3779 /* force (at least) rates when authorizing */
3780 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3781 !params->supported_rates)
3784 case CFG80211_STA_TDLS_PEER_ACTIVE:
3785 /* reject any changes */
3787 case CFG80211_STA_MESH_PEER_KERNEL:
3788 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3791 case CFG80211_STA_MESH_PEER_USER:
3792 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3799 EXPORT_SYMBOL(cfg80211_check_station_change);
3802 * Get vlan interface making sure it is running and on the right wiphy.
3804 static struct net_device *get_vlan(struct genl_info *info,
3805 struct cfg80211_registered_device *rdev)
3807 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3808 struct net_device *v;
3814 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3816 return ERR_PTR(-ENODEV);
3818 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3823 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3824 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3825 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3830 if (!netif_running(v)) {
3838 return ERR_PTR(ret);
3841 static struct nla_policy
3842 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3843 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3844 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3847 static int nl80211_parse_sta_wme(struct genl_info *info,
3848 struct station_parameters *params)
3850 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3854 /* parse WME attributes if present */
3855 if (!info->attrs[NL80211_ATTR_STA_WME])
3858 nla = info->attrs[NL80211_ATTR_STA_WME];
3859 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3860 nl80211_sta_wme_policy);
3864 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3865 params->uapsd_queues = nla_get_u8(
3866 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3867 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3870 if (tb[NL80211_STA_WME_MAX_SP])
3871 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3873 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3876 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3881 static int nl80211_set_station_tdls(struct genl_info *info,
3882 struct station_parameters *params)
3884 /* Dummy STA entry gets updated once the peer capabilities are known */
3885 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3887 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3888 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3890 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3892 return nl80211_parse_sta_wme(info, params);
3895 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3898 struct net_device *dev = info->user_ptr[1];
3899 struct station_parameters params;
3903 memset(¶ms, 0, sizeof(params));
3905 params.listen_interval = -1;
3907 if (!rdev->ops->change_station)
3910 if (info->attrs[NL80211_ATTR_STA_AID])
3913 if (!info->attrs[NL80211_ATTR_MAC])
3916 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3918 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3919 params.supported_rates =
3920 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3921 params.supported_rates_len =
3922 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3925 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3927 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3928 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3931 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3933 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3934 params.ext_capab_len =
3935 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3938 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3941 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3944 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
3945 params.plink_action =
3946 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3947 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3951 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
3952 params.plink_state =
3953 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3954 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3956 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3959 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3960 enum nl80211_mesh_power_mode pm = nla_get_u32(
3961 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3963 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3964 pm > NL80211_MESH_POWER_MAX)
3967 params.local_pm = pm;
3970 /* Include parameters for TDLS peer (will check later) */
3971 err = nl80211_set_station_tdls(info, ¶ms);
3975 params.vlan = get_vlan(info, rdev);
3976 if (IS_ERR(params.vlan))
3977 return PTR_ERR(params.vlan);
3979 switch (dev->ieee80211_ptr->iftype) {
3980 case NL80211_IFTYPE_AP:
3981 case NL80211_IFTYPE_AP_VLAN:
3982 case NL80211_IFTYPE_P2P_GO:
3983 case NL80211_IFTYPE_P2P_CLIENT:
3984 case NL80211_IFTYPE_STATION:
3985 case NL80211_IFTYPE_ADHOC:
3986 case NL80211_IFTYPE_MESH_POINT:
3993 /* driver will call cfg80211_check_station_change() */
3994 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3998 dev_put(params.vlan);
4003 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4007 struct net_device *dev = info->user_ptr[1];
4008 struct station_parameters params;
4009 u8 *mac_addr = NULL;
4011 memset(¶ms, 0, sizeof(params));
4013 if (!rdev->ops->add_station)
4016 if (!info->attrs[NL80211_ATTR_MAC])
4019 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4022 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4025 if (!info->attrs[NL80211_ATTR_STA_AID])
4028 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4029 params.supported_rates =
4030 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4031 params.supported_rates_len =
4032 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4033 params.listen_interval =
4034 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4036 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4037 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4040 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4042 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4043 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4046 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4048 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4049 params.ext_capab_len =
4050 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4053 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4055 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4057 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4059 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4061 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4062 params.plink_action =
4063 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4064 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4068 err = nl80211_parse_sta_wme(info, ¶ms);
4072 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4075 /* When you run into this, adjust the code below for the new flag */
4076 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4078 switch (dev->ieee80211_ptr->iftype) {
4079 case NL80211_IFTYPE_AP:
4080 case NL80211_IFTYPE_AP_VLAN:
4081 case NL80211_IFTYPE_P2P_GO:
4082 /* ignore WME attributes if iface/sta is not capable */
4083 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4084 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4085 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4087 /* TDLS peers cannot be added */
4088 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4090 /* but don't bother the driver with it */
4091 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4093 /* allow authenticated/associated only if driver handles it */
4094 if (!(rdev->wiphy.features &
4095 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4096 params.sta_flags_mask &
4097 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4098 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4101 /* must be last in here for error handling */
4102 params.vlan = get_vlan(info, rdev);
4103 if (IS_ERR(params.vlan))
4104 return PTR_ERR(params.vlan);
4106 case NL80211_IFTYPE_MESH_POINT:
4107 /* ignore uAPSD data */
4108 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4110 /* associated is disallowed */
4111 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4113 /* TDLS peers cannot be added */
4114 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4117 case NL80211_IFTYPE_STATION:
4118 case NL80211_IFTYPE_P2P_CLIENT:
4119 /* ignore uAPSD data */
4120 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4122 /* these are disallowed */
4123 if (params.sta_flags_mask &
4124 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4125 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4127 /* Only TDLS peers can be added */
4128 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4130 /* Can only add if TDLS ... */
4131 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4133 /* ... with external setup is supported */
4134 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4137 * Older wpa_supplicant versions always mark the TDLS peer
4138 * as authorized, but it shouldn't yet be.
4140 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4146 /* be aware of params.vlan when changing code here */
4148 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4151 dev_put(params.vlan);
4155 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4158 struct net_device *dev = info->user_ptr[1];
4159 u8 *mac_addr = NULL;
4161 if (info->attrs[NL80211_ATTR_MAC])
4162 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4164 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4165 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4166 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4167 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4170 if (!rdev->ops->del_station)
4173 return rdev_del_station(rdev, dev, mac_addr);
4176 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4177 int flags, struct net_device *dev,
4178 u8 *dst, u8 *next_hop,
4179 struct mpath_info *pinfo)
4182 struct nlattr *pinfoattr;
4184 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4188 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4189 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4190 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4191 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4192 goto nla_put_failure;
4194 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4196 goto nla_put_failure;
4197 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4198 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4200 goto nla_put_failure;
4201 if (((pinfo->filled & MPATH_INFO_SN) &&
4202 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4203 ((pinfo->filled & MPATH_INFO_METRIC) &&
4204 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4206 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4207 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4209 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4210 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4212 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4213 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4214 pinfo->discovery_timeout)) ||
4215 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4216 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4217 pinfo->discovery_retries)))
4218 goto nla_put_failure;
4220 nla_nest_end(msg, pinfoattr);
4222 return genlmsg_end(msg, hdr);
4225 genlmsg_cancel(msg, hdr);
4229 static int nl80211_dump_mpath(struct sk_buff *skb,
4230 struct netlink_callback *cb)
4232 struct mpath_info pinfo;
4233 struct cfg80211_registered_device *dev;
4234 struct wireless_dev *wdev;
4236 u8 next_hop[ETH_ALEN];
4237 int path_idx = cb->args[2];
4240 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
4244 if (!dev->ops->dump_mpath) {
4249 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4255 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4262 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4263 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4264 wdev->netdev, dst, next_hop,
4273 cb->args[2] = path_idx;
4276 nl80211_finish_wdev_dump(dev);
4280 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4284 struct net_device *dev = info->user_ptr[1];
4285 struct mpath_info pinfo;
4286 struct sk_buff *msg;
4288 u8 next_hop[ETH_ALEN];
4290 memset(&pinfo, 0, sizeof(pinfo));
4292 if (!info->attrs[NL80211_ATTR_MAC])
4295 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4297 if (!rdev->ops->get_mpath)
4300 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4303 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4307 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4311 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4312 dev, dst, next_hop, &pinfo) < 0) {
4317 return genlmsg_reply(msg, info);
4320 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4323 struct net_device *dev = info->user_ptr[1];
4325 u8 *next_hop = NULL;
4327 if (!info->attrs[NL80211_ATTR_MAC])
4330 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4333 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4334 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4336 if (!rdev->ops->change_mpath)
4339 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4342 return rdev_change_mpath(rdev, dev, dst, next_hop);
4345 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4348 struct net_device *dev = info->user_ptr[1];
4350 u8 *next_hop = NULL;
4352 if (!info->attrs[NL80211_ATTR_MAC])
4355 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4358 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4359 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4361 if (!rdev->ops->add_mpath)
4364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4367 return rdev_add_mpath(rdev, dev, dst, next_hop);
4370 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4373 struct net_device *dev = info->user_ptr[1];
4376 if (info->attrs[NL80211_ATTR_MAC])
4377 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4379 if (!rdev->ops->del_mpath)
4382 return rdev_del_mpath(rdev, dev, dst);
4385 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4387 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4388 struct net_device *dev = info->user_ptr[1];
4389 struct bss_parameters params;
4391 memset(¶ms, 0, sizeof(params));
4392 /* default to not changing parameters */
4393 params.use_cts_prot = -1;
4394 params.use_short_preamble = -1;
4395 params.use_short_slot_time = -1;
4396 params.ap_isolate = -1;
4397 params.ht_opmode = -1;
4398 params.p2p_ctwindow = -1;
4399 params.p2p_opp_ps = -1;
4401 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4402 params.use_cts_prot =
4403 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4404 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4405 params.use_short_preamble =
4406 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4407 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4408 params.use_short_slot_time =
4409 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4410 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4411 params.basic_rates =
4412 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4413 params.basic_rates_len =
4414 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4416 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4417 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4418 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4420 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4422 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4423 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4425 params.p2p_ctwindow =
4426 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4427 if (params.p2p_ctwindow < 0)
4429 if (params.p2p_ctwindow != 0 &&
4430 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4434 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4437 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4439 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4442 params.p2p_opp_ps = tmp;
4443 if (params.p2p_opp_ps &&
4444 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4448 if (!rdev->ops->change_bss)
4451 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4452 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4455 return rdev_change_bss(rdev, dev, ¶ms);
4458 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4459 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4460 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4461 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4462 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4463 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4464 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4467 static int parse_reg_rule(struct nlattr *tb[],
4468 struct ieee80211_reg_rule *reg_rule)
4470 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4471 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4473 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4475 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4477 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4479 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4481 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4484 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4486 freq_range->start_freq_khz =
4487 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4488 freq_range->end_freq_khz =
4489 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4490 freq_range->max_bandwidth_khz =
4491 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4493 power_rule->max_eirp =
4494 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4496 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4497 power_rule->max_antenna_gain =
4498 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4503 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4507 enum nl80211_user_reg_hint_type user_reg_hint_type;
4510 * You should only get this when cfg80211 hasn't yet initialized
4511 * completely when built-in to the kernel right between the time
4512 * window between nl80211_init() and regulatory_init(), if that is
4515 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4516 return -EINPROGRESS;
4518 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4521 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4523 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4524 user_reg_hint_type =
4525 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4527 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4529 switch (user_reg_hint_type) {
4530 case NL80211_USER_REG_HINT_USER:
4531 case NL80211_USER_REG_HINT_CELL_BASE:
4537 r = regulatory_hint_user(data, user_reg_hint_type);
4542 static int nl80211_get_mesh_config(struct sk_buff *skb,
4543 struct genl_info *info)
4545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4546 struct net_device *dev = info->user_ptr[1];
4547 struct wireless_dev *wdev = dev->ieee80211_ptr;
4548 struct mesh_config cur_params;
4551 struct nlattr *pinfoattr;
4552 struct sk_buff *msg;
4554 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4557 if (!rdev->ops->get_mesh_config)
4561 /* If not connected, get default parameters */
4562 if (!wdev->mesh_id_len)
4563 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4565 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4571 /* Draw up a netlink message to send back */
4572 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4575 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4576 NL80211_CMD_GET_MESH_CONFIG);
4579 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4581 goto nla_put_failure;
4582 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4583 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4584 cur_params.dot11MeshRetryTimeout) ||
4585 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4586 cur_params.dot11MeshConfirmTimeout) ||
4587 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4588 cur_params.dot11MeshHoldingTimeout) ||
4589 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4590 cur_params.dot11MeshMaxPeerLinks) ||
4591 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4592 cur_params.dot11MeshMaxRetries) ||
4593 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4594 cur_params.dot11MeshTTL) ||
4595 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4596 cur_params.element_ttl) ||
4597 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4598 cur_params.auto_open_plinks) ||
4599 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4600 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4601 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4602 cur_params.dot11MeshHWMPmaxPREQretries) ||
4603 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4604 cur_params.path_refresh_time) ||
4605 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4606 cur_params.min_discovery_timeout) ||
4607 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4608 cur_params.dot11MeshHWMPactivePathTimeout) ||
4609 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4610 cur_params.dot11MeshHWMPpreqMinInterval) ||
4611 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4612 cur_params.dot11MeshHWMPperrMinInterval) ||
4613 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4614 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4615 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4616 cur_params.dot11MeshHWMPRootMode) ||
4617 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4618 cur_params.dot11MeshHWMPRannInterval) ||
4619 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4620 cur_params.dot11MeshGateAnnouncementProtocol) ||
4621 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4622 cur_params.dot11MeshForwarding) ||
4623 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4624 cur_params.rssi_threshold) ||
4625 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4626 cur_params.ht_opmode) ||
4627 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4628 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4629 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4630 cur_params.dot11MeshHWMProotInterval) ||
4631 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4632 cur_params.dot11MeshHWMPconfirmationInterval) ||
4633 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4634 cur_params.power_mode) ||
4635 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4636 cur_params.dot11MeshAwakeWindowDuration))
4637 goto nla_put_failure;
4638 nla_nest_end(msg, pinfoattr);
4639 genlmsg_end(msg, hdr);
4640 return genlmsg_reply(msg, info);
4643 genlmsg_cancel(msg, hdr);
4649 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4650 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4651 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4652 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4653 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4654 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4655 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4656 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4657 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4658 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4659 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4660 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4661 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4662 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4663 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4664 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4665 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4666 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4667 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4668 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4669 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4670 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4671 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4672 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4673 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4674 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4675 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4676 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4679 static const struct nla_policy
4680 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4681 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4682 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4683 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4684 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4685 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4686 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4687 .len = IEEE80211_MAX_DATA_LEN },
4688 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4691 static int nl80211_parse_mesh_config(struct genl_info *info,
4692 struct mesh_config *cfg,
4695 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4698 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4701 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4703 cfg->param = fn(tb[attr]); \
4704 mask |= (1 << (attr - 1)); \
4709 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4711 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4712 info->attrs[NL80211_ATTR_MESH_CONFIG],
4713 nl80211_meshconf_params_policy))
4716 /* This makes sure that there aren't more than 32 mesh config
4717 * parameters (otherwise our bitfield scheme would not work.) */
4718 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4720 /* Fill in the params struct */
4721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4722 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4724 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4725 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4727 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4728 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4730 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4731 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4733 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4734 mask, NL80211_MESHCONF_MAX_RETRIES,
4736 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4737 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4738 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4739 mask, NL80211_MESHCONF_ELEMENT_TTL,
4741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4742 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4744 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4746 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4748 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4749 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4751 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4752 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4754 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4755 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4757 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4759 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4761 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4763 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4765 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4767 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4769 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4770 dot11MeshHWMPnetDiameterTraversalTime,
4772 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4774 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4775 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4777 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4778 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4780 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4781 dot11MeshGateAnnouncementProtocol, 0, 1,
4782 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4784 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4785 mask, NL80211_MESHCONF_FORWARDING,
4787 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
4788 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4790 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4791 mask, NL80211_MESHCONF_HT_OPMODE,
4793 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4795 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4797 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4798 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4800 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4801 dot11MeshHWMPconfirmationInterval,
4803 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4805 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4806 NL80211_MESH_POWER_ACTIVE,
4807 NL80211_MESH_POWER_MAX,
4808 mask, NL80211_MESHCONF_POWER_MODE,
4810 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4812 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4818 #undef FILL_IN_MESH_PARAM_IF_SET
4821 static int nl80211_parse_mesh_setup(struct genl_info *info,
4822 struct mesh_setup *setup)
4824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4825 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4827 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4829 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4830 info->attrs[NL80211_ATTR_MESH_SETUP],
4831 nl80211_mesh_setup_params_policy))
4834 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4835 setup->sync_method =
4836 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4837 IEEE80211_SYNC_METHOD_VENDOR :
4838 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4840 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4841 setup->path_sel_proto =
4842 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4843 IEEE80211_PATH_PROTOCOL_VENDOR :
4844 IEEE80211_PATH_PROTOCOL_HWMP;
4846 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4847 setup->path_metric =
4848 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4849 IEEE80211_PATH_METRIC_VENDOR :
4850 IEEE80211_PATH_METRIC_AIRTIME;
4853 if (tb[NL80211_MESH_SETUP_IE]) {
4854 struct nlattr *ieattr =
4855 tb[NL80211_MESH_SETUP_IE];
4856 if (!is_valid_ie_attr(ieattr))
4858 setup->ie = nla_data(ieattr);
4859 setup->ie_len = nla_len(ieattr);
4861 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4862 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4864 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
4865 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4866 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4867 if (setup->is_secure)
4868 setup->user_mpm = true;
4873 static int nl80211_update_mesh_config(struct sk_buff *skb,
4874 struct genl_info *info)
4876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4877 struct net_device *dev = info->user_ptr[1];
4878 struct wireless_dev *wdev = dev->ieee80211_ptr;
4879 struct mesh_config cfg;
4883 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4886 if (!rdev->ops->update_mesh_config)
4889 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4894 if (!wdev->mesh_id_len)
4898 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4905 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4907 const struct ieee80211_regdomain *regdom;
4908 struct sk_buff *msg;
4910 struct nlattr *nl_reg_rules;
4914 mutex_lock(&cfg80211_mutex);
4916 if (!cfg80211_regdomain)
4919 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4925 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4926 NL80211_CMD_GET_REG);
4930 if (reg_last_request_cell_base() &&
4931 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4932 NL80211_USER_REG_HINT_CELL_BASE))
4933 goto nla_put_failure;
4936 regdom = rcu_dereference(cfg80211_regdomain);
4938 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4939 (regdom->dfs_region &&
4940 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4941 goto nla_put_failure_rcu;
4943 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4945 goto nla_put_failure_rcu;
4947 for (i = 0; i < regdom->n_reg_rules; i++) {
4948 struct nlattr *nl_reg_rule;
4949 const struct ieee80211_reg_rule *reg_rule;
4950 const struct ieee80211_freq_range *freq_range;
4951 const struct ieee80211_power_rule *power_rule;
4953 reg_rule = ®dom->reg_rules[i];
4954 freq_range = ®_rule->freq_range;
4955 power_rule = ®_rule->power_rule;
4957 nl_reg_rule = nla_nest_start(msg, i);
4959 goto nla_put_failure_rcu;
4961 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4963 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4964 freq_range->start_freq_khz) ||
4965 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4966 freq_range->end_freq_khz) ||
4967 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4968 freq_range->max_bandwidth_khz) ||
4969 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4970 power_rule->max_antenna_gain) ||
4971 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4972 power_rule->max_eirp))
4973 goto nla_put_failure_rcu;
4975 nla_nest_end(msg, nl_reg_rule);
4979 nla_nest_end(msg, nl_reg_rules);
4981 genlmsg_end(msg, hdr);
4982 err = genlmsg_reply(msg, info);
4985 nla_put_failure_rcu:
4988 genlmsg_cancel(msg, hdr);
4993 mutex_unlock(&cfg80211_mutex);
4997 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4999 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5000 struct nlattr *nl_reg_rule;
5001 char *alpha2 = NULL;
5002 int rem_reg_rules = 0, r = 0;
5003 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5005 struct ieee80211_regdomain *rd = NULL;
5007 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5010 if (!info->attrs[NL80211_ATTR_REG_RULES])
5013 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5015 if (info->attrs[NL80211_ATTR_DFS_REGION])
5016 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5018 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5021 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5025 size_of_regd = sizeof(struct ieee80211_regdomain) +
5026 num_rules * sizeof(struct ieee80211_reg_rule);
5028 rd = kzalloc(size_of_regd, GFP_KERNEL);
5032 rd->n_reg_rules = num_rules;
5033 rd->alpha2[0] = alpha2[0];
5034 rd->alpha2[1] = alpha2[1];
5037 * Disable DFS master mode if the DFS region was
5038 * not supported or known on this kernel.
5040 if (reg_supported_dfs_region(dfs_region))
5041 rd->dfs_region = dfs_region;
5043 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5045 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5046 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5048 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5054 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5060 mutex_lock(&cfg80211_mutex);
5063 /* set_regdom took ownership */
5065 mutex_unlock(&cfg80211_mutex);
5072 static int validate_scan_freqs(struct nlattr *freqs)
5074 struct nlattr *attr1, *attr2;
5075 int n_channels = 0, tmp1, tmp2;
5077 nla_for_each_nested(attr1, freqs, tmp1) {
5080 * Some hardware has a limited channel list for
5081 * scanning, and it is pretty much nonsensical
5082 * to scan for a channel twice, so disallow that
5083 * and don't require drivers to check that the
5084 * channel list they get isn't longer than what
5085 * they can scan, as long as they can scan all
5086 * the channels they registered at once.
5088 nla_for_each_nested(attr2, freqs, tmp2)
5089 if (attr1 != attr2 &&
5090 nla_get_u32(attr1) == nla_get_u32(attr2))
5097 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5099 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5100 struct wireless_dev *wdev = info->user_ptr[1];
5101 struct cfg80211_scan_request *request;
5102 struct nlattr *attr;
5103 struct wiphy *wiphy;
5104 int err, tmp, n_ssids = 0, n_channels, i;
5107 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5110 wiphy = &rdev->wiphy;
5112 if (!rdev->ops->scan)
5115 mutex_lock(&rdev->sched_scan_mtx);
5116 if (rdev->scan_req) {
5121 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5122 n_channels = validate_scan_freqs(
5123 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5129 enum ieee80211_band band;
5132 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5133 if (wiphy->bands[band])
5134 n_channels += wiphy->bands[band]->n_channels;
5137 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5138 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5141 if (n_ssids > wiphy->max_scan_ssids) {
5146 if (info->attrs[NL80211_ATTR_IE])
5147 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5151 if (ie_len > wiphy->max_scan_ie_len) {
5156 request = kzalloc(sizeof(*request)
5157 + sizeof(*request->ssids) * n_ssids
5158 + sizeof(*request->channels) * n_channels
5159 + ie_len, GFP_KERNEL);
5166 request->ssids = (void *)&request->channels[n_channels];
5167 request->n_ssids = n_ssids;
5170 request->ie = (void *)(request->ssids + n_ssids);
5172 request->ie = (void *)(request->channels + n_channels);
5176 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5177 /* user specified, bail out if channel not found */
5178 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5179 struct ieee80211_channel *chan;
5181 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5188 /* ignore disabled channels */
5189 if (chan->flags & IEEE80211_CHAN_DISABLED)
5192 request->channels[i] = chan;
5196 enum ieee80211_band band;
5199 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5201 if (!wiphy->bands[band])
5203 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5204 struct ieee80211_channel *chan;
5206 chan = &wiphy->bands[band]->channels[j];
5208 if (chan->flags & IEEE80211_CHAN_DISABLED)
5211 request->channels[i] = chan;
5222 request->n_channels = i;
5225 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5226 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5227 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5231 request->ssids[i].ssid_len = nla_len(attr);
5232 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5237 if (info->attrs[NL80211_ATTR_IE]) {
5238 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5239 memcpy((void *)request->ie,
5240 nla_data(info->attrs[NL80211_ATTR_IE]),
5244 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5245 if (wiphy->bands[i])
5247 (1 << wiphy->bands[i]->n_bitrates) - 1;
5249 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5250 nla_for_each_nested(attr,
5251 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5253 enum ieee80211_band band = nla_type(attr);
5255 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5259 err = ieee80211_get_ratemask(wiphy->bands[band],
5262 &request->rates[band]);
5268 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5269 request->flags = nla_get_u32(
5270 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5271 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5272 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5273 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5274 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5281 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5283 request->wdev = wdev;
5284 request->wiphy = &rdev->wiphy;
5285 request->scan_start = jiffies;
5287 rdev->scan_req = request;
5288 err = rdev_scan(rdev, request);
5291 nl80211_send_scan_start(rdev, wdev);
5293 dev_hold(wdev->netdev);
5296 rdev->scan_req = NULL;
5301 mutex_unlock(&rdev->sched_scan_mtx);
5305 static int nl80211_start_sched_scan(struct sk_buff *skb,
5306 struct genl_info *info)
5308 struct cfg80211_sched_scan_request *request;
5309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5310 struct net_device *dev = info->user_ptr[1];
5311 struct nlattr *attr;
5312 struct wiphy *wiphy;
5313 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5315 enum ieee80211_band band;
5317 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5319 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5320 !rdev->ops->sched_scan_start)
5323 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5326 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5329 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5333 wiphy = &rdev->wiphy;
5335 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5336 n_channels = validate_scan_freqs(
5337 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5343 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5344 if (wiphy->bands[band])
5345 n_channels += wiphy->bands[band]->n_channels;
5348 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5349 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5353 if (n_ssids > wiphy->max_sched_scan_ssids)
5356 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5357 nla_for_each_nested(attr,
5358 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5362 if (n_match_sets > wiphy->max_match_sets)
5365 if (info->attrs[NL80211_ATTR_IE])
5366 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5370 if (ie_len > wiphy->max_sched_scan_ie_len)
5373 mutex_lock(&rdev->sched_scan_mtx);
5375 if (rdev->sched_scan_req) {
5380 request = kzalloc(sizeof(*request)
5381 + sizeof(*request->ssids) * n_ssids
5382 + sizeof(*request->match_sets) * n_match_sets
5383 + sizeof(*request->channels) * n_channels
5384 + ie_len, GFP_KERNEL);
5391 request->ssids = (void *)&request->channels[n_channels];
5392 request->n_ssids = n_ssids;
5395 request->ie = (void *)(request->ssids + n_ssids);
5397 request->ie = (void *)(request->channels + n_channels);
5402 request->match_sets = (void *)(request->ie + ie_len);
5403 else if (request->ssids)
5404 request->match_sets =
5405 (void *)(request->ssids + n_ssids);
5407 request->match_sets =
5408 (void *)(request->channels + n_channels);
5410 request->n_match_sets = n_match_sets;
5413 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5414 /* user specified, bail out if channel not found */
5415 nla_for_each_nested(attr,
5416 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5418 struct ieee80211_channel *chan;
5420 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5427 /* ignore disabled channels */
5428 if (chan->flags & IEEE80211_CHAN_DISABLED)
5431 request->channels[i] = chan;
5436 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5438 if (!wiphy->bands[band])
5440 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5441 struct ieee80211_channel *chan;
5443 chan = &wiphy->bands[band]->channels[j];
5445 if (chan->flags & IEEE80211_CHAN_DISABLED)
5448 request->channels[i] = chan;
5459 request->n_channels = i;
5462 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5463 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5465 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5469 request->ssids[i].ssid_len = nla_len(attr);
5470 memcpy(request->ssids[i].ssid, nla_data(attr),
5477 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5478 nla_for_each_nested(attr,
5479 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5481 struct nlattr *ssid, *rssi;
5483 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5484 nla_data(attr), nla_len(attr),
5485 nl80211_match_policy);
5486 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5488 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5492 memcpy(request->match_sets[i].ssid.ssid,
5493 nla_data(ssid), nla_len(ssid));
5494 request->match_sets[i].ssid.ssid_len =
5497 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5499 request->rssi_thold = nla_get_u32(rssi);
5501 request->rssi_thold =
5502 NL80211_SCAN_RSSI_THOLD_OFF;
5507 if (info->attrs[NL80211_ATTR_IE]) {
5508 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5509 memcpy((void *)request->ie,
5510 nla_data(info->attrs[NL80211_ATTR_IE]),
5514 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5515 request->flags = nla_get_u32(
5516 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5517 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5518 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5519 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5520 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5527 request->wiphy = &rdev->wiphy;
5528 request->interval = interval;
5529 request->scan_start = jiffies;
5531 err = rdev_sched_scan_start(rdev, dev, request);
5533 rdev->sched_scan_req = request;
5534 nl80211_send_sched_scan(rdev, dev,
5535 NL80211_CMD_START_SCHED_SCAN);
5542 mutex_unlock(&rdev->sched_scan_mtx);
5546 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5547 struct genl_info *info)
5549 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5552 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5553 !rdev->ops->sched_scan_stop)
5556 mutex_lock(&rdev->sched_scan_mtx);
5557 err = __cfg80211_stop_sched_scan(rdev, false);
5558 mutex_unlock(&rdev->sched_scan_mtx);
5563 static int nl80211_start_radar_detection(struct sk_buff *skb,
5564 struct genl_info *info)
5566 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5567 struct net_device *dev = info->user_ptr[1];
5568 struct wireless_dev *wdev = dev->ieee80211_ptr;
5569 struct cfg80211_chan_def chandef;
5572 err = nl80211_parse_chandef(rdev, info, &chandef);
5576 if (wdev->cac_started)
5579 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5586 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5589 if (!rdev->ops->start_radar_detection)
5592 mutex_lock(&rdev->devlist_mtx);
5593 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5594 chandef.chan, CHAN_MODE_SHARED,
5595 BIT(chandef.width));
5599 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5601 wdev->channel = chandef.chan;
5602 wdev->cac_started = true;
5603 wdev->cac_start_time = jiffies;
5606 mutex_unlock(&rdev->devlist_mtx);
5611 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5613 struct cfg80211_registered_device *rdev,
5614 struct wireless_dev *wdev,
5615 struct cfg80211_internal_bss *intbss)
5617 struct cfg80211_bss *res = &intbss->pub;
5618 const struct cfg80211_bss_ies *ies;
5623 ASSERT_WDEV_LOCK(wdev);
5625 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5626 NL80211_CMD_NEW_SCAN_RESULTS);
5630 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5632 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5633 goto nla_put_failure;
5635 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5636 goto nla_put_failure;
5637 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5638 goto nla_put_failure;
5640 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5642 goto nla_put_failure;
5643 if ((!is_zero_ether_addr(res->bssid) &&
5644 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5645 goto nla_put_failure;
5648 ies = rcu_dereference(res->ies);
5650 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5651 goto fail_unlock_rcu;
5653 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5654 ies->len, ies->data))
5655 goto fail_unlock_rcu;
5657 ies = rcu_dereference(res->beacon_ies);
5659 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5660 goto fail_unlock_rcu;
5661 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5662 ies->len, ies->data))
5663 goto fail_unlock_rcu;
5667 if (res->beacon_interval &&
5668 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5669 goto nla_put_failure;
5670 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5671 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5672 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5673 jiffies_to_msecs(jiffies - intbss->ts)))
5674 goto nla_put_failure;
5676 switch (rdev->wiphy.signal_type) {
5677 case CFG80211_SIGNAL_TYPE_MBM:
5678 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5679 goto nla_put_failure;
5681 case CFG80211_SIGNAL_TYPE_UNSPEC:
5682 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5683 goto nla_put_failure;
5689 switch (wdev->iftype) {
5690 case NL80211_IFTYPE_P2P_CLIENT:
5691 case NL80211_IFTYPE_STATION:
5692 if (intbss == wdev->current_bss &&
5693 nla_put_u32(msg, NL80211_BSS_STATUS,
5694 NL80211_BSS_STATUS_ASSOCIATED))
5695 goto nla_put_failure;
5697 case NL80211_IFTYPE_ADHOC:
5698 if (intbss == wdev->current_bss &&
5699 nla_put_u32(msg, NL80211_BSS_STATUS,
5700 NL80211_BSS_STATUS_IBSS_JOINED))
5701 goto nla_put_failure;
5707 nla_nest_end(msg, bss);
5709 return genlmsg_end(msg, hdr);
5714 genlmsg_cancel(msg, hdr);
5718 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
5720 struct cfg80211_registered_device *rdev;
5721 struct cfg80211_internal_bss *scan;
5722 struct wireless_dev *wdev;
5723 int start = cb->args[2], idx = 0;
5726 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5731 spin_lock_bh(&rdev->bss_lock);
5732 cfg80211_bss_expire(rdev);
5734 cb->seq = rdev->bss_generation;
5736 list_for_each_entry(scan, &rdev->bss_list, list) {
5739 if (nl80211_send_bss(skb, cb,
5740 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5741 rdev, wdev, scan) < 0) {
5747 spin_unlock_bh(&rdev->bss_lock);
5751 nl80211_finish_wdev_dump(rdev);
5756 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5757 int flags, struct net_device *dev,
5758 struct survey_info *survey)
5761 struct nlattr *infoattr;
5763 hdr = nl80211hdr_put(msg, portid, seq, flags,
5764 NL80211_CMD_NEW_SURVEY_RESULTS);
5768 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5769 goto nla_put_failure;
5771 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5773 goto nla_put_failure;
5775 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5776 survey->channel->center_freq))
5777 goto nla_put_failure;
5779 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5780 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5781 goto nla_put_failure;
5782 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5783 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5784 goto nla_put_failure;
5785 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5786 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5787 survey->channel_time))
5788 goto nla_put_failure;
5789 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5790 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5791 survey->channel_time_busy))
5792 goto nla_put_failure;
5793 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5794 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5795 survey->channel_time_ext_busy))
5796 goto nla_put_failure;
5797 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5798 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5799 survey->channel_time_rx))
5800 goto nla_put_failure;
5801 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5802 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5803 survey->channel_time_tx))
5804 goto nla_put_failure;
5806 nla_nest_end(msg, infoattr);
5808 return genlmsg_end(msg, hdr);
5811 genlmsg_cancel(msg, hdr);
5815 static int nl80211_dump_survey(struct sk_buff *skb,
5816 struct netlink_callback *cb)
5818 struct survey_info survey;
5819 struct cfg80211_registered_device *dev;
5820 struct wireless_dev *wdev;
5821 int survey_idx = cb->args[2];
5824 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
5828 if (!wdev->netdev) {
5833 if (!dev->ops->dump_survey) {
5839 struct ieee80211_channel *chan;
5841 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
5847 /* Survey without a channel doesn't make sense */
5848 if (!survey.channel) {
5853 chan = ieee80211_get_channel(&dev->wiphy,
5854 survey.channel->center_freq);
5855 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5860 if (nl80211_send_survey(skb,
5861 NETLINK_CB(cb->skb).portid,
5862 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5863 wdev->netdev, &survey) < 0)
5869 cb->args[2] = survey_idx;
5872 nl80211_finish_wdev_dump(dev);
5876 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5878 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5879 NL80211_WPA_VERSION_2 |
5880 NL80211_WAPI_VERSION_1));
5883 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5886 struct net_device *dev = info->user_ptr[1];
5887 struct ieee80211_channel *chan;
5888 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5889 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5890 enum nl80211_auth_type auth_type;
5891 struct key_parse key;
5892 bool local_state_change;
5894 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5897 if (!info->attrs[NL80211_ATTR_MAC])
5900 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5903 if (!info->attrs[NL80211_ATTR_SSID])
5906 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5909 err = nl80211_parse_key(info, &key);
5914 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5916 if (!key.p.key || !key.p.key_len)
5918 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5919 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5920 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5921 key.p.key_len != WLAN_KEY_LEN_WEP104))
5933 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5934 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5943 if (!rdev->ops->auth)
5946 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5947 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5950 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5951 chan = ieee80211_get_channel(&rdev->wiphy,
5952 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5953 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5956 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5957 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5959 if (info->attrs[NL80211_ATTR_IE]) {
5960 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5961 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5964 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5965 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5968 if (auth_type == NL80211_AUTHTYPE_SAE &&
5969 !info->attrs[NL80211_ATTR_SAE_DATA])
5972 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5973 if (auth_type != NL80211_AUTHTYPE_SAE)
5975 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5976 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5977 /* need to include at least Auth Transaction and Status Code */
5978 if (sae_data_len < 4)
5982 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5985 * Since we no longer track auth state, ignore
5986 * requests to only change local state.
5988 if (local_state_change)
5991 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5992 ssid, ssid_len, ie, ie_len,
5993 key.p.key, key.p.key_len, key.idx,
5994 sae_data, sae_data_len);
5997 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5998 struct genl_info *info,
5999 struct cfg80211_crypto_settings *settings,
6002 memset(settings, 0, sizeof(*settings));
6004 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6006 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6008 proto = nla_get_u16(
6009 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6010 settings->control_port_ethertype = cpu_to_be16(proto);
6011 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6014 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6015 settings->control_port_no_encrypt = true;
6017 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6019 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6023 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6024 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6025 settings->n_ciphers_pairwise = len / sizeof(u32);
6027 if (len % sizeof(u32))
6030 if (settings->n_ciphers_pairwise > cipher_limit)
6033 memcpy(settings->ciphers_pairwise, data, len);
6035 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6036 if (!cfg80211_supported_cipher_suite(
6038 settings->ciphers_pairwise[i]))
6042 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6043 settings->cipher_group =
6044 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6045 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6046 settings->cipher_group))
6050 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6051 settings->wpa_versions =
6052 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6053 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6057 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6061 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6062 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6063 settings->n_akm_suites = len / sizeof(u32);
6065 if (len % sizeof(u32))
6068 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6071 memcpy(settings->akm_suites, data, len);
6077 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6079 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6080 struct net_device *dev = info->user_ptr[1];
6081 struct ieee80211_channel *chan;
6082 struct cfg80211_assoc_request req = {};
6083 const u8 *bssid, *ssid;
6084 int err, ssid_len = 0;
6086 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6089 if (!info->attrs[NL80211_ATTR_MAC] ||
6090 !info->attrs[NL80211_ATTR_SSID] ||
6091 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6094 if (!rdev->ops->assoc)
6097 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6098 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6101 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6103 chan = ieee80211_get_channel(&rdev->wiphy,
6104 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6105 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6108 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6109 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6111 if (info->attrs[NL80211_ATTR_IE]) {
6112 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6113 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6116 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6117 enum nl80211_mfp mfp =
6118 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6119 if (mfp == NL80211_MFP_REQUIRED)
6121 else if (mfp != NL80211_MFP_NO)
6125 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6126 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6128 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6129 req.flags |= ASSOC_REQ_DISABLE_HT;
6131 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6132 memcpy(&req.ht_capa_mask,
6133 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6134 sizeof(req.ht_capa_mask));
6136 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6137 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6139 memcpy(&req.ht_capa,
6140 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6141 sizeof(req.ht_capa));
6144 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6145 req.flags |= ASSOC_REQ_DISABLE_VHT;
6147 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6148 memcpy(&req.vht_capa_mask,
6149 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6150 sizeof(req.vht_capa_mask));
6152 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6153 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6155 memcpy(&req.vht_capa,
6156 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6157 sizeof(req.vht_capa));
6160 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6162 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6163 ssid, ssid_len, &req);
6168 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6171 struct net_device *dev = info->user_ptr[1];
6172 const u8 *ie = NULL, *bssid;
6175 bool local_state_change;
6177 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6180 if (!info->attrs[NL80211_ATTR_MAC])
6183 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6186 if (!rdev->ops->deauth)
6189 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6190 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6193 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6195 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6196 if (reason_code == 0) {
6197 /* Reason Code 0 is reserved */
6201 if (info->attrs[NL80211_ATTR_IE]) {
6202 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6203 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6206 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6208 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6209 local_state_change);
6212 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6215 struct net_device *dev = info->user_ptr[1];
6216 const u8 *ie = NULL, *bssid;
6219 bool local_state_change;
6221 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6224 if (!info->attrs[NL80211_ATTR_MAC])
6227 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6230 if (!rdev->ops->disassoc)
6233 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6234 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6237 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6239 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6240 if (reason_code == 0) {
6241 /* Reason Code 0 is reserved */
6245 if (info->attrs[NL80211_ATTR_IE]) {
6246 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6247 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6250 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6252 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6253 local_state_change);
6257 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6258 int mcast_rate[IEEE80211_NUM_BANDS],
6261 struct wiphy *wiphy = &rdev->wiphy;
6265 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6266 struct ieee80211_supported_band *sband;
6268 sband = wiphy->bands[band];
6272 for (i = 0; i < sband->n_bitrates; i++) {
6273 if (sband->bitrates[i].bitrate == rateval) {
6274 mcast_rate[band] = i + 1;
6284 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6286 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6287 struct net_device *dev = info->user_ptr[1];
6288 struct cfg80211_ibss_params ibss;
6289 struct wiphy *wiphy;
6290 struct cfg80211_cached_keys *connkeys = NULL;
6293 memset(&ibss, 0, sizeof(ibss));
6295 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6298 if (!info->attrs[NL80211_ATTR_SSID] ||
6299 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6302 ibss.beacon_interval = 100;
6304 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6305 ibss.beacon_interval =
6306 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6307 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6311 if (!rdev->ops->join_ibss)
6314 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6317 wiphy = &rdev->wiphy;
6319 if (info->attrs[NL80211_ATTR_MAC]) {
6320 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6322 if (!is_valid_ether_addr(ibss.bssid))
6325 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6326 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6328 if (info->attrs[NL80211_ATTR_IE]) {
6329 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6330 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6333 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6337 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
6340 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
6342 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
6343 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
6346 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6347 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6349 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6351 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6353 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6354 struct ieee80211_supported_band *sband =
6355 wiphy->bands[ibss.chandef.chan->band];
6357 err = ieee80211_get_ratemask(sband, rates, n_rates,
6363 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6364 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6365 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6368 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6371 connkeys = nl80211_parse_connkeys(rdev,
6372 info->attrs[NL80211_ATTR_KEYS],
6374 if (IS_ERR(connkeys))
6375 return PTR_ERR(connkeys);
6377 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6385 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6387 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6393 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6396 struct net_device *dev = info->user_ptr[1];
6398 if (!rdev->ops->leave_ibss)
6401 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6404 return cfg80211_leave_ibss(rdev, dev, false);
6407 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6409 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6410 struct net_device *dev = info->user_ptr[1];
6411 int mcast_rate[IEEE80211_NUM_BANDS];
6415 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6416 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6419 if (!rdev->ops->set_mcast_rate)
6422 memset(mcast_rate, 0, sizeof(mcast_rate));
6424 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6427 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6428 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6431 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6436 static struct sk_buff *
6437 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6438 int approxlen, u32 portid, u32 seq,
6439 enum nl80211_commands cmd,
6440 enum nl80211_attrs attr,
6441 const struct nl80211_vendor_cmd_info *info,
6444 struct sk_buff *skb;
6446 struct nlattr *data;
6448 skb = nlmsg_new(approxlen + 100, gfp);
6452 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6458 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6459 goto nla_put_failure;
6462 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6464 goto nla_put_failure;
6465 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6467 goto nla_put_failure;
6470 data = nla_nest_start(skb, attr);
6472 ((void **)skb->cb)[0] = rdev;
6473 ((void **)skb->cb)[1] = hdr;
6474 ((void **)skb->cb)[2] = data;
6483 #ifdef CONFIG_NL80211_TESTMODE
6484 static struct genl_multicast_group nl80211_testmode_mcgrp = {
6488 static struct genl_multicast_group nl80211_vendor_mcgrp = {
6492 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6494 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6497 if (!info->attrs[NL80211_ATTR_TESTDATA])
6501 if (rdev->ops->testmode_cmd) {
6502 rdev->cur_cmd_info = info;
6503 err = rdev_testmode_cmd(rdev,
6504 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6505 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6506 rdev->cur_cmd_info = NULL;
6512 static int nl80211_testmode_dump(struct sk_buff *skb,
6513 struct netlink_callback *cb)
6515 struct cfg80211_registered_device *rdev;
6523 * 0 is a valid index, but not valid for args[0],
6524 * so we need to offset by 1.
6526 phy_idx = cb->args[0] - 1;
6528 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6529 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6534 mutex_lock(&cfg80211_mutex);
6535 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6536 nl80211_fam.attrbuf);
6538 mutex_unlock(&cfg80211_mutex);
6539 return PTR_ERR(rdev);
6541 phy_idx = rdev->wiphy_idx;
6543 mutex_unlock(&cfg80211_mutex);
6545 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6547 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6551 data = nla_data((void *)cb->args[1]);
6552 data_len = nla_len((void *)cb->args[1]);
6555 mutex_lock(&cfg80211_mutex);
6556 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6558 mutex_unlock(&cfg80211_mutex);
6561 cfg80211_lock_rdev(rdev);
6562 mutex_unlock(&cfg80211_mutex);
6564 if (!rdev->ops->testmode_dump) {
6570 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6571 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6572 NL80211_CMD_TESTMODE);
6573 struct nlattr *tmdata;
6578 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6579 genlmsg_cancel(skb, hdr);
6583 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6585 genlmsg_cancel(skb, hdr);
6588 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6589 nla_nest_end(skb, tmdata);
6591 if (err == -ENOBUFS || err == -ENOENT) {
6592 genlmsg_cancel(skb, hdr);
6595 genlmsg_cancel(skb, hdr);
6599 genlmsg_end(skb, hdr);
6604 cb->args[0] = phy_idx + 1;
6606 cfg80211_unlock_rdev(rdev);
6610 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6611 enum nl80211_commands cmd,
6612 enum nl80211_attrs attr,
6613 int vendor_event_idx,
6614 int approxlen, gfp_t gfp)
6616 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6617 const struct nl80211_vendor_cmd_info *info;
6620 case NL80211_CMD_TESTMODE:
6621 if (WARN_ON(vendor_event_idx != -1))
6625 case NL80211_CMD_VENDOR:
6626 if (WARN_ON(vendor_event_idx < 0 ||
6627 vendor_event_idx >= wiphy->n_vendor_events))
6629 info = &wiphy->vendor_events[vendor_event_idx];
6635 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6636 cmd, attr, info, gfp);
6638 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6640 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6642 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6643 void *hdr = ((void **)skb->cb)[1];
6644 struct nlattr *data = ((void **)skb->cb)[2];
6646 /* clear CB data for netlink core to own from now on */
6647 memset(skb->cb, 0, sizeof(skb->cb));
6649 nla_nest_end(skb, data);
6650 genlmsg_end(skb, hdr);
6652 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6653 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
6654 nl80211_vendor_mcgrp.id, gfp);
6656 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
6657 nl80211_testmode_mcgrp.id, gfp);
6659 EXPORT_SYMBOL(__cfg80211_send_event_skb);
6662 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6664 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6665 struct net_device *dev = info->user_ptr[1];
6666 struct cfg80211_connect_params connect;
6667 struct wiphy *wiphy;
6668 struct cfg80211_cached_keys *connkeys = NULL;
6671 memset(&connect, 0, sizeof(connect));
6673 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6676 if (!info->attrs[NL80211_ATTR_SSID] ||
6677 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6680 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6682 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6683 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6684 NL80211_CMD_CONNECT))
6687 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6689 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6691 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6692 NL80211_MAX_NR_CIPHER_SUITES);
6696 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6697 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6700 wiphy = &rdev->wiphy;
6702 connect.bg_scan_period = -1;
6703 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6704 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6705 connect.bg_scan_period =
6706 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6709 if (info->attrs[NL80211_ATTR_MAC])
6710 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6711 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6712 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6714 if (info->attrs[NL80211_ATTR_IE]) {
6715 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6716 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6719 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6720 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6721 if (connect.mfp != NL80211_MFP_REQUIRED &&
6722 connect.mfp != NL80211_MFP_NO)
6725 connect.mfp = NL80211_MFP_NO;
6728 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6730 ieee80211_get_channel(wiphy,
6731 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6732 if (!connect.channel ||
6733 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6737 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6738 connkeys = nl80211_parse_connkeys(rdev,
6739 info->attrs[NL80211_ATTR_KEYS], NULL);
6740 if (IS_ERR(connkeys))
6741 return PTR_ERR(connkeys);
6744 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6745 connect.flags |= ASSOC_REQ_DISABLE_HT;
6747 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6748 memcpy(&connect.ht_capa_mask,
6749 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6750 sizeof(connect.ht_capa_mask));
6752 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6753 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6757 memcpy(&connect.ht_capa,
6758 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6759 sizeof(connect.ht_capa));
6762 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6763 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6765 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6766 memcpy(&connect.vht_capa_mask,
6767 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6768 sizeof(connect.vht_capa_mask));
6770 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6771 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6775 memcpy(&connect.vht_capa,
6776 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6777 sizeof(connect.vht_capa));
6780 err = cfg80211_connect(rdev, dev, &connect, connkeys);
6786 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6788 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6789 struct net_device *dev = info->user_ptr[1];
6792 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6793 reason = WLAN_REASON_DEAUTH_LEAVING;
6795 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6800 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6801 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6804 return cfg80211_disconnect(rdev, dev, reason, true);
6807 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6814 if (!info->attrs[NL80211_ATTR_PID])
6817 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6819 net = get_net_ns_by_pid(pid);
6821 return PTR_ERR(net);
6825 /* check if anything to do */
6826 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6827 err = cfg80211_switch_netns(rdev, net);
6833 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6836 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6837 struct cfg80211_pmksa *pmksa) = NULL;
6838 struct net_device *dev = info->user_ptr[1];
6839 struct cfg80211_pmksa pmksa;
6841 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6843 if (!info->attrs[NL80211_ATTR_MAC])
6846 if (!info->attrs[NL80211_ATTR_PMKID])
6849 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6850 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6852 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6853 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6856 switch (info->genlhdr->cmd) {
6857 case NL80211_CMD_SET_PMKSA:
6858 rdev_ops = rdev->ops->set_pmksa;
6860 case NL80211_CMD_DEL_PMKSA:
6861 rdev_ops = rdev->ops->del_pmksa;
6871 return rdev_ops(&rdev->wiphy, dev, &pmksa);
6874 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6877 struct net_device *dev = info->user_ptr[1];
6879 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6880 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6883 if (!rdev->ops->flush_pmksa)
6886 return rdev_flush_pmksa(rdev, dev);
6889 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6891 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6892 struct net_device *dev = info->user_ptr[1];
6893 u8 action_code, dialog_token;
6897 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6898 !rdev->ops->tdls_mgmt)
6901 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6902 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6903 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6904 !info->attrs[NL80211_ATTR_IE] ||
6905 !info->attrs[NL80211_ATTR_MAC])
6908 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6909 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6910 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6911 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6913 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6914 dialog_token, status_code,
6915 nla_data(info->attrs[NL80211_ATTR_IE]),
6916 nla_len(info->attrs[NL80211_ATTR_IE]));
6919 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6922 struct net_device *dev = info->user_ptr[1];
6923 enum nl80211_tdls_operation operation;
6926 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6927 !rdev->ops->tdls_oper)
6930 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6931 !info->attrs[NL80211_ATTR_MAC])
6934 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6935 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6937 return rdev_tdls_oper(rdev, dev, peer, operation);
6940 static int nl80211_remain_on_channel(struct sk_buff *skb,
6941 struct genl_info *info)
6943 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6944 struct wireless_dev *wdev = info->user_ptr[1];
6945 struct cfg80211_chan_def chandef;
6946 struct sk_buff *msg;
6952 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6953 !info->attrs[NL80211_ATTR_DURATION])
6956 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6958 if (!rdev->ops->remain_on_channel ||
6959 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6963 * We should be on that channel for at least a minimum amount of
6964 * time (10ms) but no longer than the driver supports.
6966 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6967 duration > rdev->wiphy.max_remain_on_channel_duration)
6970 err = nl80211_parse_chandef(rdev, info, &chandef);
6974 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6978 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6979 NL80211_CMD_REMAIN_ON_CHANNEL);
6985 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6991 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6992 goto nla_put_failure;
6994 genlmsg_end(msg, hdr);
6996 return genlmsg_reply(msg, info);
7005 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7006 struct genl_info *info)
7008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7009 struct wireless_dev *wdev = info->user_ptr[1];
7012 if (!info->attrs[NL80211_ATTR_COOKIE])
7015 if (!rdev->ops->cancel_remain_on_channel)
7018 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7020 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7023 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7024 u8 *rates, u8 rates_len)
7029 for (i = 0; i < rates_len; i++) {
7030 int rate = (rates[i] & 0x7f) * 5;
7032 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7033 struct ieee80211_rate *srate =
7034 &sband->bitrates[ridx];
7035 if (rate == srate->bitrate) {
7040 if (ridx == sband->n_bitrates)
7041 return 0; /* rate not found */
7047 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7048 u8 *rates, u8 rates_len,
7049 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7053 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7055 for (i = 0; i < rates_len; i++) {
7058 ridx = rates[i] / 8;
7059 rbit = BIT(rates[i] % 8);
7061 /* check validity */
7062 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7065 /* check availability */
7066 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7075 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7076 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7077 .len = NL80211_MAX_SUPP_RATES },
7078 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7079 .len = NL80211_MAX_SUPP_HT_RATES },
7082 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7083 struct genl_info *info)
7085 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7086 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7087 struct cfg80211_bitrate_mask mask;
7089 struct net_device *dev = info->user_ptr[1];
7090 struct nlattr *tx_rates;
7091 struct ieee80211_supported_band *sband;
7093 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7096 if (!rdev->ops->set_bitrate_mask)
7099 memset(&mask, 0, sizeof(mask));
7100 /* Default to all rates enabled */
7101 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7102 sband = rdev->wiphy.bands[i];
7103 mask.control[i].legacy =
7104 sband ? (1 << sband->n_bitrates) - 1 : 0;
7106 memcpy(mask.control[i].mcs,
7107 sband->ht_cap.mcs.rx_mask,
7108 sizeof(mask.control[i].mcs));
7110 memset(mask.control[i].mcs, 0,
7111 sizeof(mask.control[i].mcs));
7115 * The nested attribute uses enum nl80211_band as the index. This maps
7116 * directly to the enum ieee80211_band values used in cfg80211.
7118 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7119 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7121 enum ieee80211_band band = nla_type(tx_rates);
7122 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7124 sband = rdev->wiphy.bands[band];
7127 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7128 nla_len(tx_rates), nl80211_txattr_policy);
7129 if (tb[NL80211_TXRATE_LEGACY]) {
7130 mask.control[band].legacy = rateset_to_mask(
7132 nla_data(tb[NL80211_TXRATE_LEGACY]),
7133 nla_len(tb[NL80211_TXRATE_LEGACY]));
7134 if ((mask.control[band].legacy == 0) &&
7135 nla_len(tb[NL80211_TXRATE_LEGACY]))
7138 if (tb[NL80211_TXRATE_MCS]) {
7139 if (!ht_rateset_to_mask(
7141 nla_data(tb[NL80211_TXRATE_MCS]),
7142 nla_len(tb[NL80211_TXRATE_MCS]),
7143 mask.control[band].mcs))
7147 if (mask.control[band].legacy == 0) {
7148 /* don't allow empty legacy rates if HT
7149 * is not even supported. */
7150 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7153 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7154 if (mask.control[band].mcs[i])
7157 /* legacy and mcs rates may not be both empty */
7158 if (i == IEEE80211_HT_MCS_MASK_LEN)
7163 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7166 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7168 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7169 struct wireless_dev *wdev = info->user_ptr[1];
7170 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7172 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7175 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7176 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7178 switch (wdev->iftype) {
7179 case NL80211_IFTYPE_STATION:
7180 case NL80211_IFTYPE_ADHOC:
7181 case NL80211_IFTYPE_P2P_CLIENT:
7182 case NL80211_IFTYPE_AP:
7183 case NL80211_IFTYPE_AP_VLAN:
7184 case NL80211_IFTYPE_MESH_POINT:
7185 case NL80211_IFTYPE_P2P_GO:
7186 case NL80211_IFTYPE_P2P_DEVICE:
7192 /* not much point in registering if we can't reply */
7193 if (!rdev->ops->mgmt_tx)
7196 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7197 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7198 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7201 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7204 struct wireless_dev *wdev = info->user_ptr[1];
7205 struct cfg80211_chan_def chandef;
7209 struct sk_buff *msg = NULL;
7210 unsigned int wait = 0;
7211 bool offchan, no_cck, dont_wait_for_ack;
7213 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
7215 if (!info->attrs[NL80211_ATTR_FRAME])
7218 if (!rdev->ops->mgmt_tx)
7221 switch (wdev->iftype) {
7222 case NL80211_IFTYPE_STATION:
7223 case NL80211_IFTYPE_ADHOC:
7224 case NL80211_IFTYPE_P2P_CLIENT:
7225 case NL80211_IFTYPE_AP:
7226 case NL80211_IFTYPE_AP_VLAN:
7227 case NL80211_IFTYPE_MESH_POINT:
7228 case NL80211_IFTYPE_P2P_GO:
7229 case NL80211_IFTYPE_P2P_DEVICE:
7235 if (info->attrs[NL80211_ATTR_DURATION]) {
7236 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7238 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7241 * We should wait on the channel for at least a minimum amount
7242 * of time (10ms) but no longer than the driver supports.
7244 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7245 wait > rdev->wiphy.max_remain_on_channel_duration)
7250 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7252 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7255 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7257 err = nl80211_parse_chandef(rdev, info, &chandef);
7261 if (!dont_wait_for_ack) {
7262 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7266 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7274 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
7275 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7276 nla_len(info->attrs[NL80211_ATTR_FRAME]),
7277 no_cck, dont_wait_for_ack, &cookie);
7282 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7283 goto nla_put_failure;
7285 genlmsg_end(msg, hdr);
7286 return genlmsg_reply(msg, info);
7298 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7301 struct wireless_dev *wdev = info->user_ptr[1];
7304 if (!info->attrs[NL80211_ATTR_COOKIE])
7307 if (!rdev->ops->mgmt_tx_cancel_wait)
7310 switch (wdev->iftype) {
7311 case NL80211_IFTYPE_STATION:
7312 case NL80211_IFTYPE_ADHOC:
7313 case NL80211_IFTYPE_P2P_CLIENT:
7314 case NL80211_IFTYPE_AP:
7315 case NL80211_IFTYPE_AP_VLAN:
7316 case NL80211_IFTYPE_P2P_GO:
7317 case NL80211_IFTYPE_P2P_DEVICE:
7323 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7325 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7328 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7331 struct wireless_dev *wdev;
7332 struct net_device *dev = info->user_ptr[1];
7337 if (!info->attrs[NL80211_ATTR_PS_STATE])
7340 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7342 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7345 wdev = dev->ieee80211_ptr;
7347 if (!rdev->ops->set_power_mgmt)
7350 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7352 if (state == wdev->ps)
7355 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7361 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7364 enum nl80211_ps_state ps_state;
7365 struct wireless_dev *wdev;
7366 struct net_device *dev = info->user_ptr[1];
7367 struct sk_buff *msg;
7371 wdev = dev->ieee80211_ptr;
7373 if (!rdev->ops->set_power_mgmt)
7376 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7380 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7381 NL80211_CMD_GET_POWER_SAVE);
7388 ps_state = NL80211_PS_ENABLED;
7390 ps_state = NL80211_PS_DISABLED;
7392 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7393 goto nla_put_failure;
7395 genlmsg_end(msg, hdr);
7396 return genlmsg_reply(msg, info);
7405 static struct nla_policy
7406 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7407 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7408 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7409 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
7410 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7411 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7412 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
7415 static int nl80211_set_cqm_txe(struct genl_info *info,
7416 u32 rate, u32 pkts, u32 intvl)
7418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7419 struct wireless_dev *wdev;
7420 struct net_device *dev = info->user_ptr[1];
7422 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
7425 wdev = dev->ieee80211_ptr;
7427 if (!rdev->ops->set_cqm_txe_config)
7430 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7431 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7434 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
7437 static int nl80211_set_cqm_rssi(struct genl_info *info,
7438 s32 threshold, u32 hysteresis)
7440 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7441 struct wireless_dev *wdev;
7442 struct net_device *dev = info->user_ptr[1];
7447 wdev = dev->ieee80211_ptr;
7449 if (!rdev->ops->set_cqm_rssi_config)
7452 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7453 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7456 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
7459 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7461 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7465 cqm = info->attrs[NL80211_ATTR_CQM];
7471 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7472 nl80211_attr_cqm_policy);
7476 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7477 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7480 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7481 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7482 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
7483 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7484 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7485 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7486 u32 rate, pkts, intvl;
7487 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7488 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7489 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7490 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
7498 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7500 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7501 struct net_device *dev = info->user_ptr[1];
7502 struct mesh_config cfg;
7503 struct mesh_setup setup;
7506 /* start with default */
7507 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7508 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7510 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7511 /* and parse parameters if given */
7512 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7517 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7518 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7521 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7522 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7524 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7525 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7526 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7529 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7530 setup.beacon_interval =
7531 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7532 if (setup.beacon_interval < 10 ||
7533 setup.beacon_interval > 10000)
7537 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7539 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7540 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7544 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7545 /* parse additional setup parameters if given */
7546 err = nl80211_parse_mesh_setup(info, &setup);
7552 cfg.auto_open_plinks = false;
7554 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7555 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7559 /* cfg80211_join_mesh() will sort it out */
7560 setup.chandef.chan = NULL;
7563 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7566 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7569 struct net_device *dev = info->user_ptr[1];
7571 return cfg80211_leave_mesh(rdev, dev);
7575 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7576 struct cfg80211_registered_device *rdev)
7578 struct nlattr *nl_pats, *nl_pat;
7581 if (!rdev->wowlan->n_patterns)
7584 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7588 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7589 nl_pat = nla_nest_start(msg, i + 1);
7592 pat_len = rdev->wowlan->patterns[i].pattern_len;
7593 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7594 DIV_ROUND_UP(pat_len, 8),
7595 rdev->wowlan->patterns[i].mask) ||
7596 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7597 pat_len, rdev->wowlan->patterns[i].pattern) ||
7598 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7599 rdev->wowlan->patterns[i].pkt_offset))
7601 nla_nest_end(msg, nl_pat);
7603 nla_nest_end(msg, nl_pats);
7608 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7609 struct cfg80211_wowlan_tcp *tcp)
7611 struct nlattr *nl_tcp;
7616 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7620 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7621 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7622 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7623 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7624 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7625 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7626 tcp->payload_len, tcp->payload) ||
7627 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7628 tcp->data_interval) ||
7629 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7630 tcp->wake_len, tcp->wake_data) ||
7631 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7632 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7635 if (tcp->payload_seq.len &&
7636 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7637 sizeof(tcp->payload_seq), &tcp->payload_seq))
7640 if (tcp->payload_tok.len &&
7641 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7642 sizeof(tcp->payload_tok) + tcp->tokens_size,
7646 nla_nest_end(msg, nl_tcp);
7651 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7654 struct sk_buff *msg;
7656 u32 size = NLMSG_DEFAULT_SIZE;
7658 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7659 !rdev->wiphy.wowlan.tcp)
7662 if (rdev->wowlan && rdev->wowlan->tcp) {
7663 /* adjust size to have room for all the data */
7664 size += rdev->wowlan->tcp->tokens_size +
7665 rdev->wowlan->tcp->payload_len +
7666 rdev->wowlan->tcp->wake_len +
7667 rdev->wowlan->tcp->wake_len / 8;
7670 msg = nlmsg_new(size, GFP_KERNEL);
7674 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7675 NL80211_CMD_GET_WOWLAN);
7677 goto nla_put_failure;
7680 struct nlattr *nl_wowlan;
7682 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7684 goto nla_put_failure;
7686 if ((rdev->wowlan->any &&
7687 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7688 (rdev->wowlan->disconnect &&
7689 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7690 (rdev->wowlan->magic_pkt &&
7691 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7692 (rdev->wowlan->gtk_rekey_failure &&
7693 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7694 (rdev->wowlan->eap_identity_req &&
7695 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7696 (rdev->wowlan->four_way_handshake &&
7697 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7698 (rdev->wowlan->rfkill_release &&
7699 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7700 goto nla_put_failure;
7702 if (nl80211_send_wowlan_patterns(msg, rdev))
7703 goto nla_put_failure;
7705 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7706 goto nla_put_failure;
7708 nla_nest_end(msg, nl_wowlan);
7711 genlmsg_end(msg, hdr);
7712 return genlmsg_reply(msg, info);
7719 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7720 struct nlattr *attr,
7721 struct cfg80211_wowlan *trig)
7723 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7724 struct cfg80211_wowlan_tcp *cfg;
7725 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7726 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7728 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7731 if (!rdev->wiphy.wowlan.tcp)
7734 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7735 nla_data(attr), nla_len(attr),
7736 nl80211_wowlan_tcp_policy);
7740 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7741 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7742 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7743 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7744 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7745 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7746 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7747 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7750 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7751 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7754 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7755 rdev->wiphy.wowlan.tcp->data_interval_max ||
7756 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
7759 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7760 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7763 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7764 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7767 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7768 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7770 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7771 tokens_size = tokln - sizeof(*tok);
7773 if (!tok->len || tokens_size % tok->len)
7775 if (!rdev->wiphy.wowlan.tcp->tok)
7777 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7779 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7781 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7783 if (tok->offset + tok->len > data_size)
7787 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7788 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7789 if (!rdev->wiphy.wowlan.tcp->seq)
7791 if (seq->len == 0 || seq->len > 4)
7793 if (seq->len + seq->offset > data_size)
7797 size = sizeof(*cfg);
7799 size += wake_size + wake_mask_size;
7800 size += tokens_size;
7802 cfg = kzalloc(size, GFP_KERNEL);
7805 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7806 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7807 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7809 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7810 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7814 /* allocate a socket and port for it and use it */
7815 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7816 IPPROTO_TCP, &cfg->sock, 1);
7821 if (inet_csk_get_port(cfg->sock->sk, port)) {
7822 sock_release(cfg->sock);
7826 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7832 cfg->src_port = port;
7835 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7836 cfg->payload_len = data_size;
7837 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7838 memcpy((void *)cfg->payload,
7839 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7842 cfg->payload_seq = *seq;
7843 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7844 cfg->wake_len = wake_size;
7845 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7846 memcpy((void *)cfg->wake_data,
7847 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7849 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7850 data_size + wake_size;
7851 memcpy((void *)cfg->wake_mask,
7852 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7855 cfg->tokens_size = tokens_size;
7856 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7864 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7867 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
7868 struct cfg80211_wowlan new_triggers = {};
7869 struct cfg80211_wowlan *ntrig;
7870 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7872 bool prev_enabled = rdev->wowlan;
7874 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7875 !rdev->wiphy.wowlan.tcp)
7878 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7879 cfg80211_rdev_free_wowlan(rdev);
7880 rdev->wowlan = NULL;
7884 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7885 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7886 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7887 nl80211_wowlan_policy);
7891 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7892 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7894 new_triggers.any = true;
7897 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7898 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7900 new_triggers.disconnect = true;
7903 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7904 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7906 new_triggers.magic_pkt = true;
7909 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7912 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7913 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7915 new_triggers.gtk_rekey_failure = true;
7918 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7919 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7921 new_triggers.eap_identity_req = true;
7924 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7925 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7927 new_triggers.four_way_handshake = true;
7930 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7931 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7933 new_triggers.rfkill_release = true;
7936 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7939 int rem, pat_len, mask_len, pkt_offset;
7940 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7942 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7945 if (n_patterns > wowlan->n_patterns)
7948 new_triggers.patterns = kcalloc(n_patterns,
7949 sizeof(new_triggers.patterns[0]),
7951 if (!new_triggers.patterns)
7954 new_triggers.n_patterns = n_patterns;
7957 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7959 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7960 nla_data(pat), nla_len(pat), NULL);
7962 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7963 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7965 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7966 mask_len = DIV_ROUND_UP(pat_len, 8);
7967 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7970 if (pat_len > wowlan->pattern_max_len ||
7971 pat_len < wowlan->pattern_min_len)
7974 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7977 pkt_offset = nla_get_u32(
7978 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7979 if (pkt_offset > wowlan->max_pkt_offset)
7981 new_triggers.patterns[i].pkt_offset = pkt_offset;
7983 new_triggers.patterns[i].mask =
7984 kmalloc(mask_len + pat_len, GFP_KERNEL);
7985 if (!new_triggers.patterns[i].mask) {
7989 new_triggers.patterns[i].pattern =
7990 new_triggers.patterns[i].mask + mask_len;
7991 memcpy(new_triggers.patterns[i].mask,
7992 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7994 new_triggers.patterns[i].pattern_len = pat_len;
7995 memcpy(new_triggers.patterns[i].pattern,
7996 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
8002 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8003 err = nl80211_parse_wowlan_tcp(
8004 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8010 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8015 cfg80211_rdev_free_wowlan(rdev);
8016 rdev->wowlan = ntrig;
8019 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
8020 rdev_set_wakeup(rdev, rdev->wowlan);
8024 for (i = 0; i < new_triggers.n_patterns; i++)
8025 kfree(new_triggers.patterns[i].mask);
8026 kfree(new_triggers.patterns);
8027 if (new_triggers.tcp && new_triggers.tcp->sock)
8028 sock_release(new_triggers.tcp->sock);
8029 kfree(new_triggers.tcp);
8034 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8037 struct net_device *dev = info->user_ptr[1];
8038 struct wireless_dev *wdev = dev->ieee80211_ptr;
8039 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8040 struct cfg80211_gtk_rekey_data rekey_data;
8043 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8046 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8047 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8048 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8049 nl80211_rekey_policy);
8053 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8055 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8057 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8060 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8062 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8064 memcpy(rekey_data.replay_ctr,
8065 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8066 NL80211_REPLAY_CTR_LEN);
8069 if (!wdev->current_bss) {
8074 if (!rdev->ops->set_rekey_data) {
8079 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8085 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8086 struct genl_info *info)
8088 struct net_device *dev = info->user_ptr[1];
8089 struct wireless_dev *wdev = dev->ieee80211_ptr;
8091 if (wdev->iftype != NL80211_IFTYPE_AP &&
8092 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8095 if (wdev->ap_unexpected_nlportid)
8098 wdev->ap_unexpected_nlportid = info->snd_portid;
8102 static int nl80211_probe_client(struct sk_buff *skb,
8103 struct genl_info *info)
8105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8106 struct net_device *dev = info->user_ptr[1];
8107 struct wireless_dev *wdev = dev->ieee80211_ptr;
8108 struct sk_buff *msg;
8114 if (wdev->iftype != NL80211_IFTYPE_AP &&
8115 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8118 if (!info->attrs[NL80211_ATTR_MAC])
8121 if (!rdev->ops->probe_client)
8124 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8128 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8129 NL80211_CMD_PROBE_CLIENT);
8135 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8137 err = rdev_probe_client(rdev, dev, addr, &cookie);
8141 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8142 goto nla_put_failure;
8144 genlmsg_end(msg, hdr);
8146 return genlmsg_reply(msg, info);
8155 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8158 struct cfg80211_beacon_registration *reg, *nreg;
8161 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8164 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8168 /* First, check if already registered. */
8169 spin_lock_bh(&rdev->beacon_registrations_lock);
8170 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8171 if (reg->nlportid == info->snd_portid) {
8176 /* Add it to the list */
8177 nreg->nlportid = info->snd_portid;
8178 list_add(&nreg->list, &rdev->beacon_registrations);
8180 spin_unlock_bh(&rdev->beacon_registrations_lock);
8184 spin_unlock_bh(&rdev->beacon_registrations_lock);
8189 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8191 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8192 struct wireless_dev *wdev = info->user_ptr[1];
8195 if (!rdev->ops->start_p2p_device)
8198 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8201 if (wdev->p2p_started)
8204 mutex_lock(&rdev->devlist_mtx);
8205 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8206 mutex_unlock(&rdev->devlist_mtx);
8210 err = rdev_start_p2p_device(rdev, wdev);
8214 wdev->p2p_started = true;
8215 mutex_lock(&rdev->devlist_mtx);
8217 mutex_unlock(&rdev->devlist_mtx);
8222 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8225 struct wireless_dev *wdev = info->user_ptr[1];
8227 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8230 if (!rdev->ops->stop_p2p_device)
8233 mutex_lock(&rdev->devlist_mtx);
8234 mutex_lock(&rdev->sched_scan_mtx);
8235 cfg80211_stop_p2p_device(rdev, wdev);
8236 mutex_unlock(&rdev->sched_scan_mtx);
8237 mutex_unlock(&rdev->devlist_mtx);
8242 static int nl80211_get_protocol_features(struct sk_buff *skb,
8243 struct genl_info *info)
8246 struct sk_buff *msg;
8248 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8252 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8253 NL80211_CMD_GET_PROTOCOL_FEATURES);
8255 goto nla_put_failure;
8257 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8258 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8259 goto nla_put_failure;
8261 genlmsg_end(msg, hdr);
8262 return genlmsg_reply(msg, info);
8269 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8271 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8272 struct cfg80211_update_ft_ies_params ft_params;
8273 struct net_device *dev = info->user_ptr[1];
8275 if (!rdev->ops->update_ft_ies)
8278 if (!info->attrs[NL80211_ATTR_MDID] ||
8279 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8282 memset(&ft_params, 0, sizeof(ft_params));
8283 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8284 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8285 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8287 return rdev_update_ft_ies(rdev, dev, &ft_params);
8290 static int nl80211_crit_protocol_start(struct sk_buff *skb,
8291 struct genl_info *info)
8293 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8294 struct wireless_dev *wdev = info->user_ptr[1];
8295 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8299 if (!rdev->ops->crit_proto_start)
8302 if (WARN_ON(!rdev->ops->crit_proto_stop))
8305 if (rdev->crit_proto_nlportid)
8308 /* determine protocol if provided */
8309 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8310 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8312 if (proto >= NUM_NL80211_CRIT_PROTO)
8315 /* timeout must be provided */
8316 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8320 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8322 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8325 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8327 rdev->crit_proto_nlportid = info->snd_portid;
8332 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8333 struct genl_info *info)
8335 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8336 struct wireless_dev *wdev = info->user_ptr[1];
8338 if (!rdev->ops->crit_proto_stop)
8341 if (rdev->crit_proto_nlportid) {
8342 rdev->crit_proto_nlportid = 0;
8343 rdev_crit_proto_stop(rdev, wdev);
8348 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
8350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8351 struct wireless_dev *wdev =
8352 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8356 if (!rdev || !rdev->wiphy.vendor_commands)
8360 err = PTR_ERR(wdev);
8364 } else if (wdev->wiphy != &rdev->wiphy) {
8368 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
8369 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
8372 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
8373 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
8374 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
8375 const struct wiphy_vendor_command *vcmd;
8379 vcmd = &rdev->wiphy.vendor_commands[i];
8381 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
8384 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
8385 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
8388 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
8392 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
8393 if (!wdev->netdev ||
8394 !netif_running(wdev->netdev))
8401 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
8402 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
8403 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
8406 rdev->cur_cmd_info = info;
8407 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
8409 rdev->cur_cmd_info = NULL;
8416 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
8417 enum nl80211_commands cmd,
8418 enum nl80211_attrs attr,
8421 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8423 if (WARN_ON(!rdev->cur_cmd_info))
8426 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
8429 cmd, attr, NULL, GFP_KERNEL);
8431 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
8433 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
8435 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
8436 void *hdr = ((void **)skb->cb)[1];
8437 struct nlattr *data = ((void **)skb->cb)[2];
8439 if (WARN_ON(!rdev->cur_cmd_info)) {
8444 nla_nest_end(skb, data);
8445 genlmsg_end(skb, hdr);
8446 return genlmsg_reply(skb, rdev->cur_cmd_info);
8448 EXPORT_SYMBOL(cfg80211_vendor_cmd_reply);
8450 #define NL80211_FLAG_NEED_WIPHY 0x01
8451 #define NL80211_FLAG_NEED_NETDEV 0x02
8452 #define NL80211_FLAG_NEED_RTNL 0x04
8453 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8454 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8455 NL80211_FLAG_CHECK_NETDEV_UP)
8456 #define NL80211_FLAG_NEED_WDEV 0x10
8457 /* If a netdev is associated, it must be UP, P2P must be started */
8458 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8459 NL80211_FLAG_CHECK_NETDEV_UP)
8461 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8462 struct genl_info *info)
8464 struct cfg80211_registered_device *rdev;
8465 struct wireless_dev *wdev;
8466 struct net_device *dev;
8467 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8472 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
8473 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
8477 return PTR_ERR(rdev);
8479 info->user_ptr[0] = rdev;
8480 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8481 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8482 mutex_lock(&cfg80211_mutex);
8483 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8486 mutex_unlock(&cfg80211_mutex);
8489 return PTR_ERR(wdev);
8493 rdev = wiphy_to_dev(wdev->wiphy);
8495 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8497 mutex_unlock(&cfg80211_mutex);
8503 info->user_ptr[1] = dev;
8505 info->user_ptr[1] = wdev;
8509 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8510 !netif_running(dev)) {
8511 mutex_unlock(&cfg80211_mutex);
8518 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8519 if (!wdev->p2p_started) {
8520 mutex_unlock(&cfg80211_mutex);
8527 cfg80211_lock_rdev(rdev);
8529 mutex_unlock(&cfg80211_mutex);
8531 info->user_ptr[0] = rdev;
8537 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8538 struct genl_info *info)
8540 if (info->user_ptr[0])
8541 cfg80211_unlock_rdev(info->user_ptr[0]);
8542 if (info->user_ptr[1]) {
8543 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8544 struct wireless_dev *wdev = info->user_ptr[1];
8547 dev_put(wdev->netdev);
8549 dev_put(info->user_ptr[1]);
8552 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8556 static struct genl_ops nl80211_ops[] = {
8558 .cmd = NL80211_CMD_GET_WIPHY,
8559 .doit = nl80211_get_wiphy,
8560 .dumpit = nl80211_dump_wiphy,
8561 .policy = nl80211_policy,
8562 /* can be retrieved by unprivileged users */
8563 .internal_flags = NL80211_FLAG_NEED_WIPHY,
8566 .cmd = NL80211_CMD_SET_WIPHY,
8567 .doit = nl80211_set_wiphy,
8568 .policy = nl80211_policy,
8569 .flags = GENL_ADMIN_PERM,
8570 .internal_flags = NL80211_FLAG_NEED_RTNL,
8573 .cmd = NL80211_CMD_GET_INTERFACE,
8574 .doit = nl80211_get_interface,
8575 .dumpit = nl80211_dump_interface,
8576 .policy = nl80211_policy,
8577 /* can be retrieved by unprivileged users */
8578 .internal_flags = NL80211_FLAG_NEED_WDEV,
8581 .cmd = NL80211_CMD_SET_INTERFACE,
8582 .doit = nl80211_set_interface,
8583 .policy = nl80211_policy,
8584 .flags = GENL_ADMIN_PERM,
8585 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8586 NL80211_FLAG_NEED_RTNL,
8589 .cmd = NL80211_CMD_NEW_INTERFACE,
8590 .doit = nl80211_new_interface,
8591 .policy = nl80211_policy,
8592 .flags = GENL_ADMIN_PERM,
8593 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8594 NL80211_FLAG_NEED_RTNL,
8597 .cmd = NL80211_CMD_DEL_INTERFACE,
8598 .doit = nl80211_del_interface,
8599 .policy = nl80211_policy,
8600 .flags = GENL_ADMIN_PERM,
8601 .internal_flags = NL80211_FLAG_NEED_WDEV |
8602 NL80211_FLAG_NEED_RTNL,
8605 .cmd = NL80211_CMD_GET_KEY,
8606 .doit = nl80211_get_key,
8607 .policy = nl80211_policy,
8608 .flags = GENL_ADMIN_PERM,
8609 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8610 NL80211_FLAG_NEED_RTNL,
8613 .cmd = NL80211_CMD_SET_KEY,
8614 .doit = nl80211_set_key,
8615 .policy = nl80211_policy,
8616 .flags = GENL_ADMIN_PERM,
8617 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8618 NL80211_FLAG_NEED_RTNL,
8621 .cmd = NL80211_CMD_NEW_KEY,
8622 .doit = nl80211_new_key,
8623 .policy = nl80211_policy,
8624 .flags = GENL_ADMIN_PERM,
8625 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8626 NL80211_FLAG_NEED_RTNL,
8629 .cmd = NL80211_CMD_DEL_KEY,
8630 .doit = nl80211_del_key,
8631 .policy = nl80211_policy,
8632 .flags = GENL_ADMIN_PERM,
8633 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8634 NL80211_FLAG_NEED_RTNL,
8637 .cmd = NL80211_CMD_SET_BEACON,
8638 .policy = nl80211_policy,
8639 .flags = GENL_ADMIN_PERM,
8640 .doit = nl80211_set_beacon,
8641 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8642 NL80211_FLAG_NEED_RTNL,
8645 .cmd = NL80211_CMD_START_AP,
8646 .policy = nl80211_policy,
8647 .flags = GENL_ADMIN_PERM,
8648 .doit = nl80211_start_ap,
8649 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8650 NL80211_FLAG_NEED_RTNL,
8653 .cmd = NL80211_CMD_STOP_AP,
8654 .policy = nl80211_policy,
8655 .flags = GENL_ADMIN_PERM,
8656 .doit = nl80211_stop_ap,
8657 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8658 NL80211_FLAG_NEED_RTNL,
8661 .cmd = NL80211_CMD_GET_STATION,
8662 .doit = nl80211_get_station,
8663 .dumpit = nl80211_dump_station,
8664 .policy = nl80211_policy,
8665 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8666 NL80211_FLAG_NEED_RTNL,
8669 .cmd = NL80211_CMD_SET_STATION,
8670 .doit = nl80211_set_station,
8671 .policy = nl80211_policy,
8672 .flags = GENL_ADMIN_PERM,
8673 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8674 NL80211_FLAG_NEED_RTNL,
8677 .cmd = NL80211_CMD_NEW_STATION,
8678 .doit = nl80211_new_station,
8679 .policy = nl80211_policy,
8680 .flags = GENL_ADMIN_PERM,
8681 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8682 NL80211_FLAG_NEED_RTNL,
8685 .cmd = NL80211_CMD_DEL_STATION,
8686 .doit = nl80211_del_station,
8687 .policy = nl80211_policy,
8688 .flags = GENL_ADMIN_PERM,
8689 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8690 NL80211_FLAG_NEED_RTNL,
8693 .cmd = NL80211_CMD_GET_MPATH,
8694 .doit = nl80211_get_mpath,
8695 .dumpit = nl80211_dump_mpath,
8696 .policy = nl80211_policy,
8697 .flags = GENL_ADMIN_PERM,
8698 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8699 NL80211_FLAG_NEED_RTNL,
8702 .cmd = NL80211_CMD_SET_MPATH,
8703 .doit = nl80211_set_mpath,
8704 .policy = nl80211_policy,
8705 .flags = GENL_ADMIN_PERM,
8706 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8707 NL80211_FLAG_NEED_RTNL,
8710 .cmd = NL80211_CMD_NEW_MPATH,
8711 .doit = nl80211_new_mpath,
8712 .policy = nl80211_policy,
8713 .flags = GENL_ADMIN_PERM,
8714 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8715 NL80211_FLAG_NEED_RTNL,
8718 .cmd = NL80211_CMD_DEL_MPATH,
8719 .doit = nl80211_del_mpath,
8720 .policy = nl80211_policy,
8721 .flags = GENL_ADMIN_PERM,
8722 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8723 NL80211_FLAG_NEED_RTNL,
8726 .cmd = NL80211_CMD_SET_BSS,
8727 .doit = nl80211_set_bss,
8728 .policy = nl80211_policy,
8729 .flags = GENL_ADMIN_PERM,
8730 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8731 NL80211_FLAG_NEED_RTNL,
8734 .cmd = NL80211_CMD_GET_REG,
8735 .doit = nl80211_get_reg,
8736 .policy = nl80211_policy,
8737 /* can be retrieved by unprivileged users */
8740 .cmd = NL80211_CMD_SET_REG,
8741 .doit = nl80211_set_reg,
8742 .policy = nl80211_policy,
8743 .flags = GENL_ADMIN_PERM,
8746 .cmd = NL80211_CMD_REQ_SET_REG,
8747 .doit = nl80211_req_set_reg,
8748 .policy = nl80211_policy,
8749 .flags = GENL_ADMIN_PERM,
8752 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8753 .doit = nl80211_get_mesh_config,
8754 .policy = nl80211_policy,
8755 /* can be retrieved by unprivileged users */
8756 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8757 NL80211_FLAG_NEED_RTNL,
8760 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8761 .doit = nl80211_update_mesh_config,
8762 .policy = nl80211_policy,
8763 .flags = GENL_ADMIN_PERM,
8764 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8765 NL80211_FLAG_NEED_RTNL,
8768 .cmd = NL80211_CMD_TRIGGER_SCAN,
8769 .doit = nl80211_trigger_scan,
8770 .policy = nl80211_policy,
8771 .flags = GENL_ADMIN_PERM,
8772 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8773 NL80211_FLAG_NEED_RTNL,
8776 .cmd = NL80211_CMD_GET_SCAN,
8777 .policy = nl80211_policy,
8778 .dumpit = nl80211_dump_scan,
8781 .cmd = NL80211_CMD_START_SCHED_SCAN,
8782 .doit = nl80211_start_sched_scan,
8783 .policy = nl80211_policy,
8784 .flags = GENL_ADMIN_PERM,
8785 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8786 NL80211_FLAG_NEED_RTNL,
8789 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8790 .doit = nl80211_stop_sched_scan,
8791 .policy = nl80211_policy,
8792 .flags = GENL_ADMIN_PERM,
8793 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8794 NL80211_FLAG_NEED_RTNL,
8797 .cmd = NL80211_CMD_AUTHENTICATE,
8798 .doit = nl80211_authenticate,
8799 .policy = nl80211_policy,
8800 .flags = GENL_ADMIN_PERM,
8801 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8802 NL80211_FLAG_NEED_RTNL,
8805 .cmd = NL80211_CMD_ASSOCIATE,
8806 .doit = nl80211_associate,
8807 .policy = nl80211_policy,
8808 .flags = GENL_ADMIN_PERM,
8809 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8810 NL80211_FLAG_NEED_RTNL,
8813 .cmd = NL80211_CMD_DEAUTHENTICATE,
8814 .doit = nl80211_deauthenticate,
8815 .policy = nl80211_policy,
8816 .flags = GENL_ADMIN_PERM,
8817 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8818 NL80211_FLAG_NEED_RTNL,
8821 .cmd = NL80211_CMD_DISASSOCIATE,
8822 .doit = nl80211_disassociate,
8823 .policy = nl80211_policy,
8824 .flags = GENL_ADMIN_PERM,
8825 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8826 NL80211_FLAG_NEED_RTNL,
8829 .cmd = NL80211_CMD_JOIN_IBSS,
8830 .doit = nl80211_join_ibss,
8831 .policy = nl80211_policy,
8832 .flags = GENL_ADMIN_PERM,
8833 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8834 NL80211_FLAG_NEED_RTNL,
8837 .cmd = NL80211_CMD_LEAVE_IBSS,
8838 .doit = nl80211_leave_ibss,
8839 .policy = nl80211_policy,
8840 .flags = GENL_ADMIN_PERM,
8841 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8842 NL80211_FLAG_NEED_RTNL,
8844 #ifdef CONFIG_NL80211_TESTMODE
8846 .cmd = NL80211_CMD_TESTMODE,
8847 .doit = nl80211_testmode_do,
8848 .dumpit = nl80211_testmode_dump,
8849 .policy = nl80211_policy,
8850 .flags = GENL_ADMIN_PERM,
8851 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8852 NL80211_FLAG_NEED_RTNL,
8856 .cmd = NL80211_CMD_CONNECT,
8857 .doit = nl80211_connect,
8858 .policy = nl80211_policy,
8859 .flags = GENL_ADMIN_PERM,
8860 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8861 NL80211_FLAG_NEED_RTNL,
8864 .cmd = NL80211_CMD_DISCONNECT,
8865 .doit = nl80211_disconnect,
8866 .policy = nl80211_policy,
8867 .flags = GENL_ADMIN_PERM,
8868 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8869 NL80211_FLAG_NEED_RTNL,
8872 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8873 .doit = nl80211_wiphy_netns,
8874 .policy = nl80211_policy,
8875 .flags = GENL_ADMIN_PERM,
8876 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8877 NL80211_FLAG_NEED_RTNL,
8880 .cmd = NL80211_CMD_GET_SURVEY,
8881 .policy = nl80211_policy,
8882 .dumpit = nl80211_dump_survey,
8885 .cmd = NL80211_CMD_SET_PMKSA,
8886 .doit = nl80211_setdel_pmksa,
8887 .policy = nl80211_policy,
8888 .flags = GENL_ADMIN_PERM,
8889 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8890 NL80211_FLAG_NEED_RTNL,
8893 .cmd = NL80211_CMD_DEL_PMKSA,
8894 .doit = nl80211_setdel_pmksa,
8895 .policy = nl80211_policy,
8896 .flags = GENL_ADMIN_PERM,
8897 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8898 NL80211_FLAG_NEED_RTNL,
8901 .cmd = NL80211_CMD_FLUSH_PMKSA,
8902 .doit = nl80211_flush_pmksa,
8903 .policy = nl80211_policy,
8904 .flags = GENL_ADMIN_PERM,
8905 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8906 NL80211_FLAG_NEED_RTNL,
8909 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8910 .doit = nl80211_remain_on_channel,
8911 .policy = nl80211_policy,
8912 .flags = GENL_ADMIN_PERM,
8913 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8914 NL80211_FLAG_NEED_RTNL,
8917 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8918 .doit = nl80211_cancel_remain_on_channel,
8919 .policy = nl80211_policy,
8920 .flags = GENL_ADMIN_PERM,
8921 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8922 NL80211_FLAG_NEED_RTNL,
8925 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8926 .doit = nl80211_set_tx_bitrate_mask,
8927 .policy = nl80211_policy,
8928 .flags = GENL_ADMIN_PERM,
8929 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8930 NL80211_FLAG_NEED_RTNL,
8933 .cmd = NL80211_CMD_REGISTER_FRAME,
8934 .doit = nl80211_register_mgmt,
8935 .policy = nl80211_policy,
8936 .flags = GENL_ADMIN_PERM,
8937 .internal_flags = NL80211_FLAG_NEED_WDEV |
8938 NL80211_FLAG_NEED_RTNL,
8941 .cmd = NL80211_CMD_FRAME,
8942 .doit = nl80211_tx_mgmt,
8943 .policy = nl80211_policy,
8944 .flags = GENL_ADMIN_PERM,
8945 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8946 NL80211_FLAG_NEED_RTNL,
8949 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8950 .doit = nl80211_tx_mgmt_cancel_wait,
8951 .policy = nl80211_policy,
8952 .flags = GENL_ADMIN_PERM,
8953 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8954 NL80211_FLAG_NEED_RTNL,
8957 .cmd = NL80211_CMD_SET_POWER_SAVE,
8958 .doit = nl80211_set_power_save,
8959 .policy = nl80211_policy,
8960 .flags = GENL_ADMIN_PERM,
8961 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8962 NL80211_FLAG_NEED_RTNL,
8965 .cmd = NL80211_CMD_GET_POWER_SAVE,
8966 .doit = nl80211_get_power_save,
8967 .policy = nl80211_policy,
8968 /* can be retrieved by unprivileged users */
8969 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8970 NL80211_FLAG_NEED_RTNL,
8973 .cmd = NL80211_CMD_SET_CQM,
8974 .doit = nl80211_set_cqm,
8975 .policy = nl80211_policy,
8976 .flags = GENL_ADMIN_PERM,
8977 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8978 NL80211_FLAG_NEED_RTNL,
8981 .cmd = NL80211_CMD_SET_CHANNEL,
8982 .doit = nl80211_set_channel,
8983 .policy = nl80211_policy,
8984 .flags = GENL_ADMIN_PERM,
8985 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8986 NL80211_FLAG_NEED_RTNL,
8989 .cmd = NL80211_CMD_SET_WDS_PEER,
8990 .doit = nl80211_set_wds_peer,
8991 .policy = nl80211_policy,
8992 .flags = GENL_ADMIN_PERM,
8993 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8994 NL80211_FLAG_NEED_RTNL,
8997 .cmd = NL80211_CMD_JOIN_MESH,
8998 .doit = nl80211_join_mesh,
8999 .policy = nl80211_policy,
9000 .flags = GENL_ADMIN_PERM,
9001 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9002 NL80211_FLAG_NEED_RTNL,
9005 .cmd = NL80211_CMD_LEAVE_MESH,
9006 .doit = nl80211_leave_mesh,
9007 .policy = nl80211_policy,
9008 .flags = GENL_ADMIN_PERM,
9009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9010 NL80211_FLAG_NEED_RTNL,
9014 .cmd = NL80211_CMD_GET_WOWLAN,
9015 .doit = nl80211_get_wowlan,
9016 .policy = nl80211_policy,
9017 /* can be retrieved by unprivileged users */
9018 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9019 NL80211_FLAG_NEED_RTNL,
9022 .cmd = NL80211_CMD_SET_WOWLAN,
9023 .doit = nl80211_set_wowlan,
9024 .policy = nl80211_policy,
9025 .flags = GENL_ADMIN_PERM,
9026 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9027 NL80211_FLAG_NEED_RTNL,
9031 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9032 .doit = nl80211_set_rekey_data,
9033 .policy = nl80211_policy,
9034 .flags = GENL_ADMIN_PERM,
9035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9036 NL80211_FLAG_NEED_RTNL,
9039 .cmd = NL80211_CMD_TDLS_MGMT,
9040 .doit = nl80211_tdls_mgmt,
9041 .policy = nl80211_policy,
9042 .flags = GENL_ADMIN_PERM,
9043 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9044 NL80211_FLAG_NEED_RTNL,
9047 .cmd = NL80211_CMD_TDLS_OPER,
9048 .doit = nl80211_tdls_oper,
9049 .policy = nl80211_policy,
9050 .flags = GENL_ADMIN_PERM,
9051 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9052 NL80211_FLAG_NEED_RTNL,
9055 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9056 .doit = nl80211_register_unexpected_frame,
9057 .policy = nl80211_policy,
9058 .flags = GENL_ADMIN_PERM,
9059 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9060 NL80211_FLAG_NEED_RTNL,
9063 .cmd = NL80211_CMD_PROBE_CLIENT,
9064 .doit = nl80211_probe_client,
9065 .policy = nl80211_policy,
9066 .flags = GENL_ADMIN_PERM,
9067 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9068 NL80211_FLAG_NEED_RTNL,
9071 .cmd = NL80211_CMD_REGISTER_BEACONS,
9072 .doit = nl80211_register_beacons,
9073 .policy = nl80211_policy,
9074 .flags = GENL_ADMIN_PERM,
9075 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9076 NL80211_FLAG_NEED_RTNL,
9079 .cmd = NL80211_CMD_SET_NOACK_MAP,
9080 .doit = nl80211_set_noack_map,
9081 .policy = nl80211_policy,
9082 .flags = GENL_ADMIN_PERM,
9083 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9084 NL80211_FLAG_NEED_RTNL,
9087 .cmd = NL80211_CMD_START_P2P_DEVICE,
9088 .doit = nl80211_start_p2p_device,
9089 .policy = nl80211_policy,
9090 .flags = GENL_ADMIN_PERM,
9091 .internal_flags = NL80211_FLAG_NEED_WDEV |
9092 NL80211_FLAG_NEED_RTNL,
9095 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9096 .doit = nl80211_stop_p2p_device,
9097 .policy = nl80211_policy,
9098 .flags = GENL_ADMIN_PERM,
9099 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9100 NL80211_FLAG_NEED_RTNL,
9103 .cmd = NL80211_CMD_SET_MCAST_RATE,
9104 .doit = nl80211_set_mcast_rate,
9105 .policy = nl80211_policy,
9106 .flags = GENL_ADMIN_PERM,
9107 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9108 NL80211_FLAG_NEED_RTNL,
9111 .cmd = NL80211_CMD_SET_MAC_ACL,
9112 .doit = nl80211_set_mac_acl,
9113 .policy = nl80211_policy,
9114 .flags = GENL_ADMIN_PERM,
9115 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9116 NL80211_FLAG_NEED_RTNL,
9119 .cmd = NL80211_CMD_RADAR_DETECT,
9120 .doit = nl80211_start_radar_detection,
9121 .policy = nl80211_policy,
9122 .flags = GENL_ADMIN_PERM,
9123 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9124 NL80211_FLAG_NEED_RTNL,
9127 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9128 .doit = nl80211_get_protocol_features,
9129 .policy = nl80211_policy,
9132 .cmd = NL80211_CMD_UPDATE_FT_IES,
9133 .doit = nl80211_update_ft_ies,
9134 .policy = nl80211_policy,
9135 .flags = GENL_ADMIN_PERM,
9136 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9137 NL80211_FLAG_NEED_RTNL,
9140 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9141 .doit = nl80211_crit_protocol_start,
9142 .policy = nl80211_policy,
9143 .flags = GENL_ADMIN_PERM,
9144 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9145 NL80211_FLAG_NEED_RTNL,
9148 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9149 .doit = nl80211_crit_protocol_stop,
9150 .policy = nl80211_policy,
9151 .flags = GENL_ADMIN_PERM,
9152 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9153 NL80211_FLAG_NEED_RTNL,
9156 .cmd = NL80211_CMD_VENDOR,
9157 .doit = nl80211_vendor_cmd,
9158 .policy = nl80211_policy,
9159 .flags = GENL_ADMIN_PERM,
9160 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9161 NL80211_FLAG_NEED_RTNL,
9165 static struct genl_multicast_group nl80211_mlme_mcgrp = {
9169 /* multicast groups */
9170 static struct genl_multicast_group nl80211_config_mcgrp = {
9173 static struct genl_multicast_group nl80211_scan_mcgrp = {
9176 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9177 .name = "regulatory",
9180 /* notification functions */
9182 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9184 struct sk_buff *msg;
9186 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9190 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
9191 false, NULL, NULL, NULL) < 0) {
9196 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9197 nl80211_config_mcgrp.id, GFP_KERNEL);
9200 static int nl80211_add_scan_req(struct sk_buff *msg,
9201 struct cfg80211_registered_device *rdev)
9203 struct cfg80211_scan_request *req = rdev->scan_req;
9204 struct nlattr *nest;
9207 lockdep_assert_held(&rdev->sched_scan_mtx);
9212 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9214 goto nla_put_failure;
9215 for (i = 0; i < req->n_ssids; i++) {
9216 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9217 goto nla_put_failure;
9219 nla_nest_end(msg, nest);
9221 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9223 goto nla_put_failure;
9224 for (i = 0; i < req->n_channels; i++) {
9225 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9226 goto nla_put_failure;
9228 nla_nest_end(msg, nest);
9231 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9232 goto nla_put_failure;
9235 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9242 static int nl80211_send_scan_msg(struct sk_buff *msg,
9243 struct cfg80211_registered_device *rdev,
9244 struct wireless_dev *wdev,
9245 u32 portid, u32 seq, int flags,
9250 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9254 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9255 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9256 wdev->netdev->ifindex)) ||
9257 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9258 goto nla_put_failure;
9260 /* ignore errors and send incomplete event anyway */
9261 nl80211_add_scan_req(msg, rdev);
9263 return genlmsg_end(msg, hdr);
9266 genlmsg_cancel(msg, hdr);
9271 nl80211_send_sched_scan_msg(struct sk_buff *msg,
9272 struct cfg80211_registered_device *rdev,
9273 struct net_device *netdev,
9274 u32 portid, u32 seq, int flags, u32 cmd)
9278 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9282 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9283 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9284 goto nla_put_failure;
9286 return genlmsg_end(msg, hdr);
9289 genlmsg_cancel(msg, hdr);
9293 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
9294 struct wireless_dev *wdev)
9296 struct sk_buff *msg;
9298 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9302 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9303 NL80211_CMD_TRIGGER_SCAN) < 0) {
9308 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9309 nl80211_scan_mcgrp.id, GFP_KERNEL);
9312 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
9313 struct wireless_dev *wdev)
9315 struct sk_buff *msg;
9317 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9321 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9322 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
9327 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9328 nl80211_scan_mcgrp.id, GFP_KERNEL);
9331 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
9332 struct wireless_dev *wdev)
9334 struct sk_buff *msg;
9336 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9340 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9341 NL80211_CMD_SCAN_ABORTED) < 0) {
9346 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9347 nl80211_scan_mcgrp.id, GFP_KERNEL);
9350 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9351 struct net_device *netdev)
9353 struct sk_buff *msg;
9355 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9359 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9360 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9365 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9366 nl80211_scan_mcgrp.id, GFP_KERNEL);
9369 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9370 struct net_device *netdev, u32 cmd)
9372 struct sk_buff *msg;
9374 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9378 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9383 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9384 nl80211_scan_mcgrp.id, GFP_KERNEL);
9388 * This can happen on global regulatory changes or device specific settings
9389 * based on custom world regulatory domains.
9391 void nl80211_send_reg_change_event(struct regulatory_request *request)
9393 struct sk_buff *msg;
9396 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9400 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9406 /* Userspace can always count this one always being set */
9407 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9408 goto nla_put_failure;
9410 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9411 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9412 NL80211_REGDOM_TYPE_WORLD))
9413 goto nla_put_failure;
9414 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9415 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9416 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9417 goto nla_put_failure;
9418 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9419 request->intersect) {
9420 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9421 NL80211_REGDOM_TYPE_INTERSECTION))
9422 goto nla_put_failure;
9424 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9425 NL80211_REGDOM_TYPE_COUNTRY) ||
9426 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9428 goto nla_put_failure;
9431 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9432 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9433 goto nla_put_failure;
9435 genlmsg_end(msg, hdr);
9438 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9445 genlmsg_cancel(msg, hdr);
9449 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9450 struct net_device *netdev,
9451 const u8 *buf, size_t len,
9452 enum nl80211_commands cmd, gfp_t gfp)
9454 struct sk_buff *msg;
9457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9461 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9467 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9468 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9469 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9470 goto nla_put_failure;
9472 genlmsg_end(msg, hdr);
9474 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9475 nl80211_mlme_mcgrp.id, gfp);
9479 genlmsg_cancel(msg, hdr);
9483 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
9484 struct net_device *netdev, const u8 *buf,
9485 size_t len, gfp_t gfp)
9487 nl80211_send_mlme_event(rdev, netdev, buf, len,
9488 NL80211_CMD_AUTHENTICATE, gfp);
9491 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9492 struct net_device *netdev, const u8 *buf,
9493 size_t len, gfp_t gfp)
9495 nl80211_send_mlme_event(rdev, netdev, buf, len,
9496 NL80211_CMD_ASSOCIATE, gfp);
9499 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
9500 struct net_device *netdev, const u8 *buf,
9501 size_t len, gfp_t gfp)
9503 nl80211_send_mlme_event(rdev, netdev, buf, len,
9504 NL80211_CMD_DEAUTHENTICATE, gfp);
9507 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9508 struct net_device *netdev, const u8 *buf,
9509 size_t len, gfp_t gfp)
9511 nl80211_send_mlme_event(rdev, netdev, buf, len,
9512 NL80211_CMD_DISASSOCIATE, gfp);
9515 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
9518 struct wireless_dev *wdev = dev->ieee80211_ptr;
9519 struct wiphy *wiphy = wdev->wiphy;
9520 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9522 trace_cfg80211_send_unprot_deauth(dev);
9523 nl80211_send_mlme_event(rdev, dev, buf, len,
9524 NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
9526 EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
9528 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
9531 struct wireless_dev *wdev = dev->ieee80211_ptr;
9532 struct wiphy *wiphy = wdev->wiphy;
9533 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9535 trace_cfg80211_send_unprot_disassoc(dev);
9536 nl80211_send_mlme_event(rdev, dev, buf, len,
9537 NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
9539 EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
9541 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9542 struct net_device *netdev, int cmd,
9543 const u8 *addr, gfp_t gfp)
9545 struct sk_buff *msg;
9548 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9552 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9558 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9559 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9560 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9561 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9562 goto nla_put_failure;
9564 genlmsg_end(msg, hdr);
9566 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9567 nl80211_mlme_mcgrp.id, gfp);
9571 genlmsg_cancel(msg, hdr);
9575 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
9576 struct net_device *netdev, const u8 *addr,
9579 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
9583 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
9584 struct net_device *netdev, const u8 *addr,
9587 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9591 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9592 struct net_device *netdev, const u8 *bssid,
9593 const u8 *req_ie, size_t req_ie_len,
9594 const u8 *resp_ie, size_t resp_ie_len,
9595 u16 status, gfp_t gfp)
9597 struct sk_buff *msg;
9600 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9604 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9610 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9611 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9612 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9613 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9615 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9617 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9618 goto nla_put_failure;
9620 genlmsg_end(msg, hdr);
9622 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9623 nl80211_mlme_mcgrp.id, gfp);
9627 genlmsg_cancel(msg, hdr);
9632 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9633 struct net_device *netdev, const u8 *bssid,
9634 const u8 *req_ie, size_t req_ie_len,
9635 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9637 struct sk_buff *msg;
9640 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9644 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9650 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9651 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9652 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9654 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9656 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9657 goto nla_put_failure;
9659 genlmsg_end(msg, hdr);
9661 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9662 nl80211_mlme_mcgrp.id, gfp);
9666 genlmsg_cancel(msg, hdr);
9671 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9672 struct net_device *netdev, u16 reason,
9673 const u8 *ie, size_t ie_len, bool from_ap)
9675 struct sk_buff *msg;
9678 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9682 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9688 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9689 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9690 (from_ap && reason &&
9691 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9693 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9694 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9695 goto nla_put_failure;
9697 genlmsg_end(msg, hdr);
9699 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9700 nl80211_mlme_mcgrp.id, GFP_KERNEL);
9704 genlmsg_cancel(msg, hdr);
9709 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9710 struct net_device *netdev, const u8 *bssid,
9713 struct sk_buff *msg;
9716 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9720 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9726 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9727 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9728 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9729 goto nla_put_failure;
9731 genlmsg_end(msg, hdr);
9733 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9734 nl80211_mlme_mcgrp.id, gfp);
9738 genlmsg_cancel(msg, hdr);
9742 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9743 const u8* ie, u8 ie_len, gfp_t gfp)
9745 struct wireless_dev *wdev = dev->ieee80211_ptr;
9746 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9747 struct sk_buff *msg;
9750 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9753 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9759 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9765 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9766 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9767 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9769 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9770 goto nla_put_failure;
9772 genlmsg_end(msg, hdr);
9774 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9775 nl80211_mlme_mcgrp.id, gfp);
9779 genlmsg_cancel(msg, hdr);
9782 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
9784 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9785 struct net_device *netdev, const u8 *addr,
9786 enum nl80211_key_type key_type, int key_id,
9787 const u8 *tsc, gfp_t gfp)
9789 struct sk_buff *msg;
9792 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9796 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9802 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9803 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9804 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9805 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9807 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9808 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9809 goto nla_put_failure;
9811 genlmsg_end(msg, hdr);
9813 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9814 nl80211_mlme_mcgrp.id, gfp);
9818 genlmsg_cancel(msg, hdr);
9822 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9823 struct ieee80211_channel *channel_before,
9824 struct ieee80211_channel *channel_after)
9826 struct sk_buff *msg;
9828 struct nlattr *nl_freq;
9830 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
9834 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9841 * Since we are applying the beacon hint to a wiphy we know its
9842 * wiphy_idx is valid
9844 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9845 goto nla_put_failure;
9848 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9850 goto nla_put_failure;
9851 if (nl80211_msg_put_channel(msg, channel_before, false))
9852 goto nla_put_failure;
9853 nla_nest_end(msg, nl_freq);
9856 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9858 goto nla_put_failure;
9859 if (nl80211_msg_put_channel(msg, channel_after, false))
9860 goto nla_put_failure;
9861 nla_nest_end(msg, nl_freq);
9863 genlmsg_end(msg, hdr);
9866 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9873 genlmsg_cancel(msg, hdr);
9877 static void nl80211_send_remain_on_chan_event(
9878 int cmd, struct cfg80211_registered_device *rdev,
9879 struct wireless_dev *wdev, u64 cookie,
9880 struct ieee80211_channel *chan,
9881 unsigned int duration, gfp_t gfp)
9883 struct sk_buff *msg;
9886 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9890 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9896 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9897 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9898 wdev->netdev->ifindex)) ||
9899 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9900 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
9901 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9902 NL80211_CHAN_NO_HT) ||
9903 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9904 goto nla_put_failure;
9906 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9907 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9908 goto nla_put_failure;
9910 genlmsg_end(msg, hdr);
9912 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9913 nl80211_mlme_mcgrp.id, gfp);
9917 genlmsg_cancel(msg, hdr);
9921 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9922 struct ieee80211_channel *chan,
9923 unsigned int duration, gfp_t gfp)
9925 struct wiphy *wiphy = wdev->wiphy;
9926 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9928 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9929 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
9930 rdev, wdev, cookie, chan,
9933 EXPORT_SYMBOL(cfg80211_ready_on_channel);
9935 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9936 struct ieee80211_channel *chan,
9939 struct wiphy *wiphy = wdev->wiphy;
9940 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9942 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9943 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9944 rdev, wdev, cookie, chan, 0, gfp);
9946 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9948 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9949 struct station_info *sinfo, gfp_t gfp)
9951 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9952 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9953 struct sk_buff *msg;
9955 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9957 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9961 if (nl80211_send_station(msg, 0, 0, 0,
9962 rdev, dev, mac_addr, sinfo) < 0) {
9967 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9968 nl80211_mlme_mcgrp.id, gfp);
9970 EXPORT_SYMBOL(cfg80211_new_sta);
9972 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
9974 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9975 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9976 struct sk_buff *msg;
9979 trace_cfg80211_del_sta(dev, mac_addr);
9981 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9985 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9991 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9992 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9993 goto nla_put_failure;
9995 genlmsg_end(msg, hdr);
9997 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9998 nl80211_mlme_mcgrp.id, gfp);
10002 genlmsg_cancel(msg, hdr);
10005 EXPORT_SYMBOL(cfg80211_del_sta);
10007 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10008 enum nl80211_connect_failed_reason reason,
10011 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10012 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10013 struct sk_buff *msg;
10016 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10020 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10026 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10027 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10028 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10029 goto nla_put_failure;
10031 genlmsg_end(msg, hdr);
10033 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10034 nl80211_mlme_mcgrp.id, gfp);
10038 genlmsg_cancel(msg, hdr);
10041 EXPORT_SYMBOL(cfg80211_conn_failed);
10043 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10044 const u8 *addr, gfp_t gfp)
10046 struct wireless_dev *wdev = dev->ieee80211_ptr;
10047 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10048 struct sk_buff *msg;
10051 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
10056 msg = nlmsg_new(100, gfp);
10060 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10066 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10067 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10068 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10069 goto nla_put_failure;
10071 err = genlmsg_end(msg, hdr);
10077 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10081 genlmsg_cancel(msg, hdr);
10086 bool cfg80211_rx_spurious_frame(struct net_device *dev,
10087 const u8 *addr, gfp_t gfp)
10089 struct wireless_dev *wdev = dev->ieee80211_ptr;
10092 trace_cfg80211_rx_spurious_frame(dev, addr);
10094 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10095 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10096 trace_cfg80211_return_bool(false);
10099 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10101 trace_cfg80211_return_bool(ret);
10104 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
10106 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10107 const u8 *addr, gfp_t gfp)
10109 struct wireless_dev *wdev = dev->ieee80211_ptr;
10112 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10114 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10115 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10116 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10117 trace_cfg80211_return_bool(false);
10120 ret = __nl80211_unexpected_frame(dev,
10121 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10123 trace_cfg80211_return_bool(ret);
10126 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
10128 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
10129 struct wireless_dev *wdev, u32 nlportid,
10130 int freq, int sig_dbm,
10131 const u8 *buf, size_t len, gfp_t gfp)
10133 struct net_device *netdev = wdev->netdev;
10134 struct sk_buff *msg;
10137 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10141 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10147 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10148 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10149 netdev->ifindex)) ||
10150 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10151 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10153 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10154 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10155 goto nla_put_failure;
10157 genlmsg_end(msg, hdr);
10159 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10162 genlmsg_cancel(msg, hdr);
10167 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10168 const u8 *buf, size_t len, bool ack, gfp_t gfp)
10170 struct wiphy *wiphy = wdev->wiphy;
10171 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10172 struct net_device *netdev = wdev->netdev;
10173 struct sk_buff *msg;
10176 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10178 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10182 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
10188 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10189 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10190 netdev->ifindex)) ||
10191 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10192 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10193 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10194 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10195 goto nla_put_failure;
10197 genlmsg_end(msg, hdr);
10199 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10200 nl80211_mlme_mcgrp.id, gfp);
10204 genlmsg_cancel(msg, hdr);
10207 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
10209 void cfg80211_cqm_rssi_notify(struct net_device *dev,
10210 enum nl80211_cqm_rssi_threshold_event rssi_event,
10213 struct wireless_dev *wdev = dev->ieee80211_ptr;
10214 struct wiphy *wiphy = wdev->wiphy;
10215 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10216 struct sk_buff *msg;
10217 struct nlattr *pinfoattr;
10220 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10222 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10226 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10232 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10233 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
10234 goto nla_put_failure;
10236 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10238 goto nla_put_failure;
10240 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10242 goto nla_put_failure;
10244 nla_nest_end(msg, pinfoattr);
10246 genlmsg_end(msg, hdr);
10248 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10249 nl80211_mlme_mcgrp.id, gfp);
10253 genlmsg_cancel(msg, hdr);
10256 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
10258 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10259 struct net_device *netdev, const u8 *bssid,
10260 const u8 *replay_ctr, gfp_t gfp)
10262 struct sk_buff *msg;
10263 struct nlattr *rekey_attr;
10266 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10270 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10276 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10277 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10278 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10279 goto nla_put_failure;
10281 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10283 goto nla_put_failure;
10285 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10286 NL80211_REPLAY_CTR_LEN, replay_ctr))
10287 goto nla_put_failure;
10289 nla_nest_end(msg, rekey_attr);
10291 genlmsg_end(msg, hdr);
10293 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10294 nl80211_mlme_mcgrp.id, gfp);
10298 genlmsg_cancel(msg, hdr);
10302 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10303 const u8 *replay_ctr, gfp_t gfp)
10305 struct wireless_dev *wdev = dev->ieee80211_ptr;
10306 struct wiphy *wiphy = wdev->wiphy;
10307 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10309 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10310 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10312 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10315 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10316 struct net_device *netdev, int index,
10317 const u8 *bssid, bool preauth, gfp_t gfp)
10319 struct sk_buff *msg;
10320 struct nlattr *attr;
10323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10327 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10334 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10335 goto nla_put_failure;
10337 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10339 goto nla_put_failure;
10341 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10342 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10344 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10345 goto nla_put_failure;
10347 nla_nest_end(msg, attr);
10349 genlmsg_end(msg, hdr);
10351 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10352 nl80211_mlme_mcgrp.id, gfp);
10356 genlmsg_cancel(msg, hdr);
10360 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10361 const u8 *bssid, bool preauth, gfp_t gfp)
10363 struct wireless_dev *wdev = dev->ieee80211_ptr;
10364 struct wiphy *wiphy = wdev->wiphy;
10365 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10367 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10368 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10370 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10372 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10373 struct net_device *netdev,
10374 struct cfg80211_chan_def *chandef,
10377 struct sk_buff *msg;
10380 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10384 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10390 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10391 goto nla_put_failure;
10393 if (nl80211_send_chandef(msg, chandef))
10394 goto nla_put_failure;
10396 genlmsg_end(msg, hdr);
10398 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10399 nl80211_mlme_mcgrp.id, gfp);
10403 genlmsg_cancel(msg, hdr);
10407 void cfg80211_ch_switch_notify(struct net_device *dev,
10408 struct cfg80211_chan_def *chandef)
10410 struct wireless_dev *wdev = dev->ieee80211_ptr;
10411 struct wiphy *wiphy = wdev->wiphy;
10412 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10414 trace_cfg80211_ch_switch_notify(dev, chandef);
10418 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10419 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10422 wdev->channel = chandef->chan;
10423 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10428 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10430 void cfg80211_cqm_txe_notify(struct net_device *dev,
10431 const u8 *peer, u32 num_packets,
10432 u32 rate, u32 intvl, gfp_t gfp)
10434 struct wireless_dev *wdev = dev->ieee80211_ptr;
10435 struct wiphy *wiphy = wdev->wiphy;
10436 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10437 struct sk_buff *msg;
10438 struct nlattr *pinfoattr;
10441 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10445 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10451 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10452 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10453 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10454 goto nla_put_failure;
10456 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10458 goto nla_put_failure;
10460 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10461 goto nla_put_failure;
10463 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10464 goto nla_put_failure;
10466 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10467 goto nla_put_failure;
10469 nla_nest_end(msg, pinfoattr);
10471 genlmsg_end(msg, hdr);
10473 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10474 nl80211_mlme_mcgrp.id, gfp);
10478 genlmsg_cancel(msg, hdr);
10481 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
10484 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10485 struct cfg80211_chan_def *chandef,
10486 enum nl80211_radar_event event,
10487 struct net_device *netdev, gfp_t gfp)
10489 struct sk_buff *msg;
10492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10496 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10502 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10503 goto nla_put_failure;
10505 /* NOP and radar events don't need a netdev parameter */
10507 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10509 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10510 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10511 goto nla_put_failure;
10514 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10515 goto nla_put_failure;
10517 if (nl80211_send_chandef(msg, chandef))
10518 goto nla_put_failure;
10520 if (genlmsg_end(msg, hdr) < 0) {
10525 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10526 nl80211_mlme_mcgrp.id, gfp);
10530 genlmsg_cancel(msg, hdr);
10534 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10535 const u8 *peer, u32 num_packets, gfp_t gfp)
10537 struct wireless_dev *wdev = dev->ieee80211_ptr;
10538 struct wiphy *wiphy = wdev->wiphy;
10539 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10540 struct sk_buff *msg;
10541 struct nlattr *pinfoattr;
10544 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10546 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10550 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10556 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10557 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10558 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10559 goto nla_put_failure;
10561 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10563 goto nla_put_failure;
10565 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10566 goto nla_put_failure;
10568 nla_nest_end(msg, pinfoattr);
10570 genlmsg_end(msg, hdr);
10572 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10573 nl80211_mlme_mcgrp.id, gfp);
10577 genlmsg_cancel(msg, hdr);
10580 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
10582 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10583 u64 cookie, bool acked, gfp_t gfp)
10585 struct wireless_dev *wdev = dev->ieee80211_ptr;
10586 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10587 struct sk_buff *msg;
10591 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10593 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10598 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10604 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10605 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10606 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10607 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10608 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10609 goto nla_put_failure;
10611 err = genlmsg_end(msg, hdr);
10617 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10618 nl80211_mlme_mcgrp.id, gfp);
10622 genlmsg_cancel(msg, hdr);
10625 EXPORT_SYMBOL(cfg80211_probe_status);
10627 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10628 const u8 *frame, size_t len,
10629 int freq, int sig_dbm)
10631 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10632 struct sk_buff *msg;
10634 struct cfg80211_beacon_registration *reg;
10636 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10638 spin_lock_bh(&rdev->beacon_registrations_lock);
10639 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10640 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10642 spin_unlock_bh(&rdev->beacon_registrations_lock);
10646 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10648 goto nla_put_failure;
10650 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10652 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10654 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10655 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10656 goto nla_put_failure;
10658 genlmsg_end(msg, hdr);
10660 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10662 spin_unlock_bh(&rdev->beacon_registrations_lock);
10666 spin_unlock_bh(&rdev->beacon_registrations_lock);
10668 genlmsg_cancel(msg, hdr);
10671 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10674 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10675 struct cfg80211_wowlan_wakeup *wakeup,
10678 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10679 struct sk_buff *msg;
10681 int err, size = 200;
10683 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10686 size += wakeup->packet_present_len;
10688 msg = nlmsg_new(size, gfp);
10692 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10696 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10697 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10700 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10701 wdev->netdev->ifindex))
10705 struct nlattr *reasons;
10707 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10709 if (wakeup->disconnect &&
10710 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10712 if (wakeup->magic_pkt &&
10713 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10715 if (wakeup->gtk_rekey_failure &&
10716 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10718 if (wakeup->eap_identity_req &&
10719 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10721 if (wakeup->four_way_handshake &&
10722 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10724 if (wakeup->rfkill_release &&
10725 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10728 if (wakeup->pattern_idx >= 0 &&
10729 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10730 wakeup->pattern_idx))
10733 if (wakeup->tcp_match)
10734 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10736 if (wakeup->tcp_connlost)
10738 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10740 if (wakeup->tcp_nomoretokens)
10742 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10744 if (wakeup->packet) {
10745 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10746 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10748 if (!wakeup->packet_80211) {
10750 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10752 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10755 if (wakeup->packet_len &&
10756 nla_put_u32(msg, len_attr, wakeup->packet_len))
10759 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10764 nla_nest_end(msg, reasons);
10767 err = genlmsg_end(msg, hdr);
10771 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10772 nl80211_mlme_mcgrp.id, gfp);
10778 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10781 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10782 enum nl80211_tdls_operation oper,
10783 u16 reason_code, gfp_t gfp)
10785 struct wireless_dev *wdev = dev->ieee80211_ptr;
10786 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10787 struct sk_buff *msg;
10791 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10794 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10798 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10804 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10805 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10806 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10807 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10808 (reason_code > 0 &&
10809 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10810 goto nla_put_failure;
10812 err = genlmsg_end(msg, hdr);
10818 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10819 nl80211_mlme_mcgrp.id, gfp);
10823 genlmsg_cancel(msg, hdr);
10826 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10828 static int nl80211_netlink_notify(struct notifier_block * nb,
10829 unsigned long state,
10832 struct netlink_notify *notify = _notify;
10833 struct cfg80211_registered_device *rdev;
10834 struct wireless_dev *wdev;
10835 struct cfg80211_beacon_registration *reg, *tmp;
10837 if (state != NETLINK_URELEASE)
10838 return NOTIFY_DONE;
10842 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
10843 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
10844 cfg80211_mlme_unregister_socket(wdev, notify->portid);
10846 spin_lock_bh(&rdev->beacon_registrations_lock);
10847 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10849 if (reg->nlportid == notify->portid) {
10850 list_del(®->list);
10855 spin_unlock_bh(&rdev->beacon_registrations_lock);
10860 return NOTIFY_DONE;
10863 static struct notifier_block nl80211_netlink_notifier = {
10864 .notifier_call = nl80211_netlink_notify,
10867 void cfg80211_ft_event(struct net_device *netdev,
10868 struct cfg80211_ft_event_params *ft_event)
10870 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10871 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10872 struct sk_buff *msg;
10876 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10878 if (!ft_event->target_ap)
10881 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10885 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10891 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10892 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10893 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10895 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10896 if (ft_event->ric_ies)
10897 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10898 ft_event->ric_ies);
10900 err = genlmsg_end(msg, hdr);
10906 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10907 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10909 EXPORT_SYMBOL(cfg80211_ft_event);
10911 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10913 struct cfg80211_registered_device *rdev;
10914 struct sk_buff *msg;
10918 rdev = wiphy_to_dev(wdev->wiphy);
10919 if (!rdev->crit_proto_nlportid)
10922 nlportid = rdev->crit_proto_nlportid;
10923 rdev->crit_proto_nlportid = 0;
10925 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10929 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10931 goto nla_put_failure;
10933 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10934 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10935 goto nla_put_failure;
10937 genlmsg_end(msg, hdr);
10939 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10944 genlmsg_cancel(msg, hdr);
10948 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10950 /* initialisation/exit functions */
10952 int nl80211_init(void)
10956 err = genl_register_family_with_ops(&nl80211_fam,
10957 nl80211_ops, ARRAY_SIZE(nl80211_ops));
10961 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10965 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10969 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10973 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10977 #ifdef CONFIG_NL80211_TESTMODE
10978 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10982 err = genl_register_mc_group(&nl80211_fam, &nl80211_vendor_mcgrp);
10987 err = netlink_register_notifier(&nl80211_netlink_notifier);
10993 genl_unregister_family(&nl80211_fam);
10997 void nl80211_exit(void)
10999 netlink_unregister_notifier(&nl80211_netlink_notifier);
11000 genl_unregister_family(&nl80211_fam);