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 },
383 /* policy for the key attributes */
384 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
385 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
386 [NL80211_KEY_IDX] = { .type = NLA_U8 },
387 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
388 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
389 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
390 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
391 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
392 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
395 /* policy for the key default flags */
396 static const struct nla_policy
397 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
398 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
399 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
402 /* policy for WoWLAN attributes */
403 static const struct nla_policy
404 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
405 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
406 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
407 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
408 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
409 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
410 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
411 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
412 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
413 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
416 static const struct nla_policy
417 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
418 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
419 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
420 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
421 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
422 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
423 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
424 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
425 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
427 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
428 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
430 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
431 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
432 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
435 /* policy for GTK rekey offload attributes */
436 static const struct nla_policy
437 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
438 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
439 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
440 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
443 static const struct nla_policy
444 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
445 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
446 .len = IEEE80211_MAX_SSID_LEN },
447 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
450 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
451 struct netlink_callback *cb,
452 struct cfg80211_registered_device **rdev,
453 struct wireless_dev **wdev)
458 mutex_lock(&cfg80211_mutex);
461 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
462 nl80211_fam.attrbuf, nl80211_fam.maxattr,
467 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
468 nl80211_fam.attrbuf);
470 err = PTR_ERR(*wdev);
473 *rdev = wiphy_to_dev((*wdev)->wiphy);
474 cb->args[0] = (*rdev)->wiphy_idx;
475 cb->args[1] = (*wdev)->identifier;
477 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
478 struct wireless_dev *tmp;
484 *rdev = wiphy_to_dev(wiphy);
487 mutex_lock(&(*rdev)->devlist_mtx);
488 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
489 if (tmp->identifier == cb->args[1]) {
494 mutex_unlock(&(*rdev)->devlist_mtx);
502 cfg80211_lock_rdev(*rdev);
504 mutex_unlock(&cfg80211_mutex);
507 mutex_unlock(&cfg80211_mutex);
512 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
514 cfg80211_unlock_rdev(rdev);
519 static bool is_valid_ie_attr(const struct nlattr *attr)
527 pos = nla_data(attr);
548 /* message building helper */
549 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
552 /* since there is no private header just add the generic one */
553 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
556 static int nl80211_msg_put_channel(struct sk_buff *msg,
557 struct ieee80211_channel *chan,
560 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
562 goto nla_put_failure;
564 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
565 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
566 goto nla_put_failure;
567 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
568 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
569 goto nla_put_failure;
570 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
571 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
572 goto nla_put_failure;
573 if (chan->flags & IEEE80211_CHAN_RADAR) {
574 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
575 goto nla_put_failure;
579 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
581 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
583 goto nla_put_failure;
584 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
586 goto nla_put_failure;
591 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
592 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
593 goto nla_put_failure;
594 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
595 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
596 goto nla_put_failure;
597 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
598 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
599 goto nla_put_failure;
600 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
601 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
602 goto nla_put_failure;
605 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
606 DBM_TO_MBM(chan->max_power)))
607 goto nla_put_failure;
615 /* netlink command implementations */
622 bool def_uni, def_multi;
625 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
627 struct nlattr *tb[NL80211_KEY_MAX + 1];
628 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
633 k->def = !!tb[NL80211_KEY_DEFAULT];
634 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
643 if (tb[NL80211_KEY_IDX])
644 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
646 if (tb[NL80211_KEY_DATA]) {
647 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
648 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
651 if (tb[NL80211_KEY_SEQ]) {
652 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
653 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
656 if (tb[NL80211_KEY_CIPHER])
657 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
659 if (tb[NL80211_KEY_TYPE]) {
660 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
661 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
665 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
666 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
667 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
668 tb[NL80211_KEY_DEFAULT_TYPES],
669 nl80211_key_default_policy);
673 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
674 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
680 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
682 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
683 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
684 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
687 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
688 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
689 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
692 if (info->attrs[NL80211_ATTR_KEY_IDX])
693 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
695 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
696 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
698 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
699 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
708 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
709 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
710 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
714 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
715 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
716 int err = nla_parse_nested(
717 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
718 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
719 nl80211_key_default_policy);
723 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
724 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
730 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
734 memset(k, 0, sizeof(*k));
738 if (info->attrs[NL80211_ATTR_KEY])
739 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
741 err = nl80211_parse_key_old(info, k);
746 if (k->def && k->defmgmt)
750 if (k->def_uni || !k->def_multi)
756 if (k->idx < 4 || k->idx > 5)
759 if (k->idx < 0 || k->idx > 3)
762 if (k->idx < 0 || k->idx > 5)
770 static struct cfg80211_cached_keys *
771 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
772 struct nlattr *keys, bool *no_ht)
774 struct key_parse parse;
776 struct cfg80211_cached_keys *result;
777 int rem, err, def = 0;
779 result = kzalloc(sizeof(*result), GFP_KERNEL);
781 return ERR_PTR(-ENOMEM);
784 result->defmgmt = -1;
786 nla_for_each_nested(key, keys, rem) {
787 memset(&parse, 0, sizeof(parse));
790 err = nl80211_parse_key_new(key, &parse);
796 if (parse.idx < 0 || parse.idx > 4)
802 result->def = parse.idx;
803 if (!parse.def_uni || !parse.def_multi)
805 } else if (parse.defmgmt)
807 err = cfg80211_validate_key_settings(rdev, &parse.p,
808 parse.idx, false, NULL);
811 result->params[parse.idx].cipher = parse.p.cipher;
812 result->params[parse.idx].key_len = parse.p.key_len;
813 result->params[parse.idx].key = result->data[parse.idx];
814 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
816 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
817 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
829 static int nl80211_key_allowed(struct wireless_dev *wdev)
831 ASSERT_WDEV_LOCK(wdev);
833 switch (wdev->iftype) {
834 case NL80211_IFTYPE_AP:
835 case NL80211_IFTYPE_AP_VLAN:
836 case NL80211_IFTYPE_P2P_GO:
837 case NL80211_IFTYPE_MESH_POINT:
839 case NL80211_IFTYPE_ADHOC:
840 if (!wdev->current_bss)
843 case NL80211_IFTYPE_STATION:
844 case NL80211_IFTYPE_P2P_CLIENT:
845 if (wdev->sme_state != CFG80211_SME_CONNECTED)
855 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
857 struct nlattr *nl_modes = nla_nest_start(msg, attr);
861 goto nla_put_failure;
865 if ((ifmodes & 1) && nla_put_flag(msg, i))
866 goto nla_put_failure;
871 nla_nest_end(msg, nl_modes);
878 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
882 struct nlattr *nl_combis;
885 nl_combis = nla_nest_start(msg,
886 NL80211_ATTR_INTERFACE_COMBINATIONS);
888 goto nla_put_failure;
890 for (i = 0; i < wiphy->n_iface_combinations; i++) {
891 const struct ieee80211_iface_combination *c;
892 struct nlattr *nl_combi, *nl_limits;
894 c = &wiphy->iface_combinations[i];
896 nl_combi = nla_nest_start(msg, i + 1);
898 goto nla_put_failure;
900 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
902 goto nla_put_failure;
904 for (j = 0; j < c->n_limits; j++) {
905 struct nlattr *nl_limit;
907 nl_limit = nla_nest_start(msg, j + 1);
909 goto nla_put_failure;
910 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
912 goto nla_put_failure;
913 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
915 goto nla_put_failure;
916 nla_nest_end(msg, nl_limit);
919 nla_nest_end(msg, nl_limits);
921 if (c->beacon_int_infra_match &&
922 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
923 goto nla_put_failure;
924 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
925 c->num_different_channels) ||
926 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
928 goto nla_put_failure;
930 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
931 c->radar_detect_widths))
932 goto nla_put_failure;
934 nla_nest_end(msg, nl_combi);
937 nla_nest_end(msg, nl_combis);
945 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
948 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
949 struct nlattr *nl_tcp;
954 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
958 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
959 tcp->data_payload_max))
962 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
963 tcp->data_payload_max))
966 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
969 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
970 sizeof(*tcp->tok), tcp->tok))
973 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
974 tcp->data_interval_max))
977 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
978 tcp->wake_payload_max))
981 nla_nest_end(msg, nl_tcp);
985 static int nl80211_send_wowlan(struct sk_buff *msg,
986 struct cfg80211_registered_device *dev,
989 struct nlattr *nl_wowlan;
991 if (!dev->wiphy.wowlan.flags && !dev->wiphy.wowlan.n_patterns)
994 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
998 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
999 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1000 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1001 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1002 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1003 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1004 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1005 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1006 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1007 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1008 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1009 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1010 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1011 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1012 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1013 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1016 if (dev->wiphy.wowlan.n_patterns) {
1017 struct nl80211_wowlan_pattern_support pat = {
1018 .max_patterns = dev->wiphy.wowlan.n_patterns,
1019 .min_pattern_len = dev->wiphy.wowlan.pattern_min_len,
1020 .max_pattern_len = dev->wiphy.wowlan.pattern_max_len,
1021 .max_pkt_offset = dev->wiphy.wowlan.max_pkt_offset,
1024 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1029 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1032 nla_nest_end(msg, nl_wowlan);
1038 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1039 struct ieee80211_supported_band *sband)
1041 struct nlattr *nl_rates, *nl_rate;
1042 struct ieee80211_rate *rate;
1046 if (sband->ht_cap.ht_supported &&
1047 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1048 sizeof(sband->ht_cap.mcs),
1049 &sband->ht_cap.mcs) ||
1050 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1051 sband->ht_cap.cap) ||
1052 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1053 sband->ht_cap.ampdu_factor) ||
1054 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1055 sband->ht_cap.ampdu_density)))
1059 if (sband->vht_cap.vht_supported &&
1060 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1061 sizeof(sband->vht_cap.vht_mcs),
1062 &sband->vht_cap.vht_mcs) ||
1063 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1064 sband->vht_cap.cap)))
1068 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1072 for (i = 0; i < sband->n_bitrates; i++) {
1073 nl_rate = nla_nest_start(msg, i);
1077 rate = &sband->bitrates[i];
1078 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1081 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1083 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1086 nla_nest_end(msg, nl_rate);
1089 nla_nest_end(msg, nl_rates);
1095 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1096 const struct ieee80211_txrx_stypes *mgmt_stypes)
1099 struct nlattr *nl_ftypes, *nl_ifs;
1100 enum nl80211_iftype ift;
1106 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1110 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1111 nl_ftypes = nla_nest_start(msg, ift);
1115 stypes = mgmt_stypes[ift].tx;
1118 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1119 (i << 4) | IEEE80211_FTYPE_MGMT))
1124 nla_nest_end(msg, nl_ftypes);
1127 nla_nest_end(msg, nl_ifs);
1129 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1133 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1134 nl_ftypes = nla_nest_start(msg, ift);
1138 stypes = mgmt_stypes[ift].rx;
1141 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1142 (i << 4) | IEEE80211_FTYPE_MGMT))
1147 nla_nest_end(msg, nl_ftypes);
1149 nla_nest_end(msg, nl_ifs);
1154 static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1155 struct sk_buff *msg, u32 portid, u32 seq,
1156 int flags, bool split, long *split_start,
1157 long *band_start, long *chan_start)
1160 struct nlattr *nl_bands, *nl_band;
1161 struct nlattr *nl_freqs, *nl_freq;
1162 struct nlattr *nl_cmds;
1163 enum ieee80211_band band;
1164 struct ieee80211_channel *chan;
1166 const struct ieee80211_txrx_stypes *mgmt_stypes =
1167 dev->wiphy.mgmt_stypes;
1168 long start = 0, start_chan = 0, start_band = 0;
1171 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1175 /* allow always using the variables */
1177 split_start = &start;
1178 band_start = &start_band;
1179 chan_start = &start_chan;
1182 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1183 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1184 wiphy_name(&dev->wiphy)) ||
1185 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1186 cfg80211_rdev_list_generation))
1187 goto nla_put_failure;
1189 switch (*split_start) {
1191 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1192 dev->wiphy.retry_short) ||
1193 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1194 dev->wiphy.retry_long) ||
1195 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1196 dev->wiphy.frag_threshold) ||
1197 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1198 dev->wiphy.rts_threshold) ||
1199 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1200 dev->wiphy.coverage_class) ||
1201 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1202 dev->wiphy.max_scan_ssids) ||
1203 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1204 dev->wiphy.max_sched_scan_ssids) ||
1205 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1206 dev->wiphy.max_scan_ie_len) ||
1207 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1208 dev->wiphy.max_sched_scan_ie_len) ||
1209 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1210 dev->wiphy.max_match_sets))
1211 goto nla_put_failure;
1213 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1214 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1215 goto nla_put_failure;
1216 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1217 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1218 goto nla_put_failure;
1219 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1220 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1221 goto nla_put_failure;
1222 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1223 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1224 goto nla_put_failure;
1225 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1226 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1227 goto nla_put_failure;
1228 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1229 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1230 goto nla_put_failure;
1236 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1237 sizeof(u32) * dev->wiphy.n_cipher_suites,
1238 dev->wiphy.cipher_suites))
1239 goto nla_put_failure;
1241 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1242 dev->wiphy.max_num_pmkids))
1243 goto nla_put_failure;
1245 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1246 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1247 goto nla_put_failure;
1249 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1250 dev->wiphy.available_antennas_tx) ||
1251 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1252 dev->wiphy.available_antennas_rx))
1253 goto nla_put_failure;
1255 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1256 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1257 dev->wiphy.probe_resp_offload))
1258 goto nla_put_failure;
1260 if ((dev->wiphy.available_antennas_tx ||
1261 dev->wiphy.available_antennas_rx) &&
1262 dev->ops->get_antenna) {
1263 u32 tx_ant = 0, rx_ant = 0;
1265 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1267 if (nla_put_u32(msg,
1268 NL80211_ATTR_WIPHY_ANTENNA_TX,
1271 NL80211_ATTR_WIPHY_ANTENNA_RX,
1273 goto nla_put_failure;
1281 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1282 dev->wiphy.interface_modes))
1283 goto nla_put_failure;
1288 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1290 goto nla_put_failure;
1292 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1293 struct ieee80211_supported_band *sband;
1295 sband = dev->wiphy.bands[band];
1300 nl_band = nla_nest_start(msg, band);
1302 goto nla_put_failure;
1304 switch (*chan_start) {
1306 if (nl80211_send_band_rateinfo(msg, sband))
1307 goto nla_put_failure;
1312 /* add frequencies */
1313 nl_freqs = nla_nest_start(
1314 msg, NL80211_BAND_ATTR_FREQS);
1316 goto nla_put_failure;
1318 for (i = *chan_start - 1;
1319 i < sband->n_channels;
1321 nl_freq = nla_nest_start(msg, i);
1323 goto nla_put_failure;
1325 chan = &sband->channels[i];
1327 if (nl80211_msg_put_channel(msg, chan,
1329 goto nla_put_failure;
1331 nla_nest_end(msg, nl_freq);
1335 if (i < sband->n_channels)
1336 *chan_start = i + 2;
1339 nla_nest_end(msg, nl_freqs);
1342 nla_nest_end(msg, nl_band);
1345 /* start again here */
1351 nla_nest_end(msg, nl_bands);
1353 if (band < IEEE80211_NUM_BANDS)
1354 *band_start = band + 1;
1358 /* if bands & channels are done, continue outside */
1359 if (*band_start == 0 && *chan_start == 0)
1364 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1366 goto nla_put_failure;
1369 #define CMD(op, n) \
1371 if (dev->ops->op) { \
1373 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1374 goto nla_put_failure; \
1378 CMD(add_virtual_intf, NEW_INTERFACE);
1379 CMD(change_virtual_intf, SET_INTERFACE);
1380 CMD(add_key, NEW_KEY);
1381 CMD(start_ap, START_AP);
1382 CMD(add_station, NEW_STATION);
1383 CMD(add_mpath, NEW_MPATH);
1384 CMD(update_mesh_config, SET_MESH_CONFIG);
1385 CMD(change_bss, SET_BSS);
1386 CMD(auth, AUTHENTICATE);
1387 CMD(assoc, ASSOCIATE);
1388 CMD(deauth, DEAUTHENTICATE);
1389 CMD(disassoc, DISASSOCIATE);
1390 CMD(join_ibss, JOIN_IBSS);
1391 CMD(join_mesh, JOIN_MESH);
1392 CMD(set_pmksa, SET_PMKSA);
1393 CMD(del_pmksa, DEL_PMKSA);
1394 CMD(flush_pmksa, FLUSH_PMKSA);
1395 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1396 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1397 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1398 CMD(mgmt_tx, FRAME);
1399 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1400 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1402 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1403 goto nla_put_failure;
1405 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1406 dev->ops->join_mesh) {
1408 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1409 goto nla_put_failure;
1411 CMD(set_wds_peer, SET_WDS_PEER);
1412 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1413 CMD(tdls_mgmt, TDLS_MGMT);
1414 CMD(tdls_oper, TDLS_OPER);
1416 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1417 CMD(sched_scan_start, START_SCHED_SCAN);
1418 CMD(probe_client, PROBE_CLIENT);
1419 CMD(set_noack_map, SET_NOACK_MAP);
1420 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1422 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1423 goto nla_put_failure;
1425 CMD(start_p2p_device, START_P2P_DEVICE);
1426 CMD(set_mcast_rate, SET_MCAST_RATE);
1428 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1429 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1432 #ifdef CONFIG_NL80211_TESTMODE
1433 CMD(testmode_cmd, TESTMODE);
1438 if (dev->ops->connect || dev->ops->auth) {
1440 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1441 goto nla_put_failure;
1444 if (dev->ops->disconnect || dev->ops->deauth) {
1446 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1447 goto nla_put_failure;
1450 nla_nest_end(msg, nl_cmds);
1455 if (dev->ops->remain_on_channel &&
1456 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1458 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1459 dev->wiphy.max_remain_on_channel_duration))
1460 goto nla_put_failure;
1462 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1463 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1464 goto nla_put_failure;
1466 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1467 goto nla_put_failure;
1473 if (nl80211_send_wowlan(msg, dev, split))
1474 goto nla_put_failure;
1482 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1483 dev->wiphy.software_iftypes))
1484 goto nla_put_failure;
1486 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
1487 goto nla_put_failure;
1493 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1494 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1495 dev->wiphy.ap_sme_capa))
1496 goto nla_put_failure;
1498 features = dev->wiphy.features;
1500 * We can only add the per-channel limit information if the
1501 * dump is split, otherwise it makes it too big. Therefore
1502 * only advertise it in that case.
1505 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1506 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1507 goto nla_put_failure;
1509 if (dev->wiphy.ht_capa_mod_mask &&
1510 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1511 sizeof(*dev->wiphy.ht_capa_mod_mask),
1512 dev->wiphy.ht_capa_mod_mask))
1513 goto nla_put_failure;
1515 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1516 dev->wiphy.max_acl_mac_addrs &&
1517 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1518 dev->wiphy.max_acl_mac_addrs))
1519 goto nla_put_failure;
1522 * Any information below this point is only available to
1523 * applications that can deal with it being split. This
1524 * helps ensure that newly added capabilities don't break
1525 * older tools by overrunning their buffers.
1527 * We still increment split_start so that in the split
1528 * case we'll continue with more data in the next round,
1529 * but break unconditionally so unsplit data stops here.
1534 if (dev->wiphy.extended_capabilities &&
1535 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1536 dev->wiphy.extended_capabilities_len,
1537 dev->wiphy.extended_capabilities) ||
1538 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1539 dev->wiphy.extended_capabilities_len,
1540 dev->wiphy.extended_capabilities_mask)))
1541 goto nla_put_failure;
1543 if (dev->wiphy.vht_capa_mod_mask &&
1544 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1545 sizeof(*dev->wiphy.vht_capa_mod_mask),
1546 dev->wiphy.vht_capa_mod_mask))
1547 goto nla_put_failure;
1553 return genlmsg_end(msg, hdr);
1556 genlmsg_cancel(msg, hdr);
1560 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1563 int start = cb->args[0];
1564 struct cfg80211_registered_device *dev;
1565 s64 filter_wiphy = -1;
1567 struct nlattr **tb = nl80211_fam.attrbuf;
1570 mutex_lock(&cfg80211_mutex);
1571 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1572 tb, nl80211_fam.maxattr, nl80211_policy);
1574 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1575 if (tb[NL80211_ATTR_WIPHY])
1576 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1577 if (tb[NL80211_ATTR_WDEV])
1578 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1579 if (tb[NL80211_ATTR_IFINDEX]) {
1580 struct net_device *netdev;
1581 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1583 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1585 mutex_unlock(&cfg80211_mutex);
1588 if (netdev->ieee80211_ptr) {
1590 netdev->ieee80211_ptr->wiphy);
1591 filter_wiphy = dev->wiphy_idx;
1597 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1598 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1602 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1604 /* attempt to fit multiple wiphy data chunks into the skb */
1606 ret = nl80211_send_wiphy(dev, skb,
1607 NETLINK_CB(cb->skb).portid,
1610 split, &cb->args[1],
1615 * If sending the wiphy data didn't fit (ENOBUFS
1616 * or EMSGSIZE returned), this SKB is still
1617 * empty (so it's not too big because another
1618 * wiphy dataset is already in the skb) and
1619 * we've not tried to adjust the dump allocation
1620 * yet ... then adjust the alloc size to be
1621 * bigger, and return 1 but with the empty skb.
1622 * This results in an empty message being RX'ed
1623 * in userspace, but that is ignored.
1625 * We can then retry with the larger buffer.
1627 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1629 cb->min_dump_alloc < 4096) {
1630 cb->min_dump_alloc = 4096;
1631 mutex_unlock(&cfg80211_mutex);
1637 } while (cb->args[1] > 0);
1640 mutex_unlock(&cfg80211_mutex);
1647 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1649 struct sk_buff *msg;
1650 struct cfg80211_registered_device *dev = info->user_ptr[0];
1652 msg = nlmsg_new(4096, GFP_KERNEL);
1656 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1657 false, NULL, NULL, NULL) < 0) {
1662 return genlmsg_reply(msg, info);
1665 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1666 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1667 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1668 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1669 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1670 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1673 static int parse_txq_params(struct nlattr *tb[],
1674 struct ieee80211_txq_params *txq_params)
1676 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1677 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1678 !tb[NL80211_TXQ_ATTR_AIFS])
1681 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1682 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1683 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1684 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1685 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1687 if (txq_params->ac >= NL80211_NUM_ACS)
1693 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1696 * You can only set the channel explicitly for WDS interfaces,
1697 * all others have their channel managed via their respective
1698 * "establish a connection" command (connect, join, ...)
1700 * For AP/GO and mesh mode, the channel can be set with the
1701 * channel userspace API, but is only stored and passed to the
1702 * low-level driver when the AP starts or the mesh is joined.
1703 * This is for backward compatibility, userspace can also give
1704 * the channel in the start-ap or join-mesh commands instead.
1706 * Monitors are special as they are normally slaved to
1707 * whatever else is going on, so they have their own special
1708 * operation to set the monitor channel if possible.
1711 wdev->iftype == NL80211_IFTYPE_AP ||
1712 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1713 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1714 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1717 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1718 struct genl_info *info,
1719 struct cfg80211_chan_def *chandef)
1723 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1726 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1728 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1729 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1730 chandef->center_freq1 = control_freq;
1731 chandef->center_freq2 = 0;
1733 /* Primary channel not allowed */
1734 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1737 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1738 enum nl80211_channel_type chantype;
1740 chantype = nla_get_u32(
1741 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1744 case NL80211_CHAN_NO_HT:
1745 case NL80211_CHAN_HT20:
1746 case NL80211_CHAN_HT40PLUS:
1747 case NL80211_CHAN_HT40MINUS:
1748 cfg80211_chandef_create(chandef, chandef->chan,
1754 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1756 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1757 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1758 chandef->center_freq1 =
1760 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1761 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1762 chandef->center_freq2 =
1764 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1767 if (!cfg80211_chandef_valid(chandef))
1770 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1771 IEEE80211_CHAN_DISABLED))
1777 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1778 struct wireless_dev *wdev,
1779 struct genl_info *info)
1781 struct cfg80211_chan_def chandef;
1783 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1786 iftype = wdev->iftype;
1788 if (!nl80211_can_set_dev_channel(wdev))
1791 result = nl80211_parse_chandef(rdev, info, &chandef);
1795 mutex_lock(&rdev->devlist_mtx);
1797 case NL80211_IFTYPE_AP:
1798 case NL80211_IFTYPE_P2P_GO:
1799 if (wdev->beacon_interval) {
1803 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1807 wdev->preset_chandef = chandef;
1810 case NL80211_IFTYPE_MESH_POINT:
1811 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1813 case NL80211_IFTYPE_MONITOR:
1814 result = cfg80211_set_monitor_channel(rdev, &chandef);
1819 mutex_unlock(&rdev->devlist_mtx);
1824 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1827 struct net_device *netdev = info->user_ptr[1];
1829 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1832 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1835 struct net_device *dev = info->user_ptr[1];
1836 struct wireless_dev *wdev = dev->ieee80211_ptr;
1839 if (!info->attrs[NL80211_ATTR_MAC])
1842 if (netif_running(dev))
1845 if (!rdev->ops->set_wds_peer)
1848 if (wdev->iftype != NL80211_IFTYPE_WDS)
1851 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1852 return rdev_set_wds_peer(rdev, dev, bssid);
1856 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1858 struct cfg80211_registered_device *rdev;
1859 struct net_device *netdev = NULL;
1860 struct wireless_dev *wdev;
1861 int result = 0, rem_txq_params = 0;
1862 struct nlattr *nl_txq_params;
1864 u8 retry_short = 0, retry_long = 0;
1865 u32 frag_threshold = 0, rts_threshold = 0;
1866 u8 coverage_class = 0;
1869 * Try to find the wiphy and netdev. Normally this
1870 * function shouldn't need the netdev, but this is
1871 * done for backward compatibility -- previously
1872 * setting the channel was done per wiphy, but now
1873 * it is per netdev. Previous userland like hostapd
1874 * also passed a netdev to set_wiphy, so that it is
1875 * possible to let that go to the right netdev!
1877 mutex_lock(&cfg80211_mutex);
1879 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1880 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1882 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1883 if (netdev && netdev->ieee80211_ptr) {
1884 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1885 mutex_lock(&rdev->mtx);
1891 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1894 mutex_unlock(&cfg80211_mutex);
1895 return PTR_ERR(rdev);
1901 mutex_lock(&rdev->mtx);
1903 wdev = netdev->ieee80211_ptr;
1906 * end workaround code, by now the rdev is available
1907 * and locked, and wdev may or may not be NULL.
1910 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1911 result = cfg80211_dev_rename(
1912 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1914 mutex_unlock(&cfg80211_mutex);
1919 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1920 struct ieee80211_txq_params txq_params;
1921 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1923 if (!rdev->ops->set_txq_params) {
1924 result = -EOPNOTSUPP;
1933 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1934 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1939 if (!netif_running(netdev)) {
1944 nla_for_each_nested(nl_txq_params,
1945 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1947 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1948 nla_data(nl_txq_params),
1949 nla_len(nl_txq_params),
1951 result = parse_txq_params(tb, &txq_params);
1955 result = rdev_set_txq_params(rdev, netdev,
1962 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1963 result = __nl80211_set_channel(rdev,
1964 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1970 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1971 struct wireless_dev *txp_wdev = wdev;
1972 enum nl80211_tx_power_setting type;
1975 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1978 if (!rdev->ops->set_tx_power) {
1979 result = -EOPNOTSUPP;
1983 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1984 type = nla_get_u32(info->attrs[idx]);
1986 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1987 (type != NL80211_TX_POWER_AUTOMATIC)) {
1992 if (type != NL80211_TX_POWER_AUTOMATIC) {
1993 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1994 mbm = nla_get_u32(info->attrs[idx]);
1997 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2002 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2003 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2005 if ((!rdev->wiphy.available_antennas_tx &&
2006 !rdev->wiphy.available_antennas_rx) ||
2007 !rdev->ops->set_antenna) {
2008 result = -EOPNOTSUPP;
2012 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2013 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2015 /* reject antenna configurations which don't match the
2016 * available antenna masks, except for the "all" mask */
2017 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2018 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
2023 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2024 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2026 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2033 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2034 retry_short = nla_get_u8(
2035 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2036 if (retry_short == 0) {
2040 changed |= WIPHY_PARAM_RETRY_SHORT;
2043 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2044 retry_long = nla_get_u8(
2045 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2046 if (retry_long == 0) {
2050 changed |= WIPHY_PARAM_RETRY_LONG;
2053 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2054 frag_threshold = nla_get_u32(
2055 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2056 if (frag_threshold < 256) {
2060 if (frag_threshold != (u32) -1) {
2062 * Fragments (apart from the last one) are required to
2063 * have even length. Make the fragmentation code
2064 * simpler by stripping LSB should someone try to use
2065 * odd threshold value.
2067 frag_threshold &= ~0x1;
2069 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2072 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2073 rts_threshold = nla_get_u32(
2074 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2075 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2078 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2079 coverage_class = nla_get_u8(
2080 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2081 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2085 u8 old_retry_short, old_retry_long;
2086 u32 old_frag_threshold, old_rts_threshold;
2087 u8 old_coverage_class;
2089 if (!rdev->ops->set_wiphy_params) {
2090 result = -EOPNOTSUPP;
2094 old_retry_short = rdev->wiphy.retry_short;
2095 old_retry_long = rdev->wiphy.retry_long;
2096 old_frag_threshold = rdev->wiphy.frag_threshold;
2097 old_rts_threshold = rdev->wiphy.rts_threshold;
2098 old_coverage_class = rdev->wiphy.coverage_class;
2100 if (changed & WIPHY_PARAM_RETRY_SHORT)
2101 rdev->wiphy.retry_short = retry_short;
2102 if (changed & WIPHY_PARAM_RETRY_LONG)
2103 rdev->wiphy.retry_long = retry_long;
2104 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2105 rdev->wiphy.frag_threshold = frag_threshold;
2106 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2107 rdev->wiphy.rts_threshold = rts_threshold;
2108 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2109 rdev->wiphy.coverage_class = coverage_class;
2111 result = rdev_set_wiphy_params(rdev, changed);
2113 rdev->wiphy.retry_short = old_retry_short;
2114 rdev->wiphy.retry_long = old_retry_long;
2115 rdev->wiphy.frag_threshold = old_frag_threshold;
2116 rdev->wiphy.rts_threshold = old_rts_threshold;
2117 rdev->wiphy.coverage_class = old_coverage_class;
2122 mutex_unlock(&rdev->mtx);
2128 static inline u64 wdev_id(struct wireless_dev *wdev)
2130 return (u64)wdev->identifier |
2131 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2134 static int nl80211_send_chandef(struct sk_buff *msg,
2135 struct cfg80211_chan_def *chandef)
2137 WARN_ON(!cfg80211_chandef_valid(chandef));
2139 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2140 chandef->chan->center_freq))
2142 switch (chandef->width) {
2143 case NL80211_CHAN_WIDTH_20_NOHT:
2144 case NL80211_CHAN_WIDTH_20:
2145 case NL80211_CHAN_WIDTH_40:
2146 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2147 cfg80211_get_chandef_type(chandef)))
2153 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2155 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2157 if (chandef->center_freq2 &&
2158 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2163 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2164 struct cfg80211_registered_device *rdev,
2165 struct wireless_dev *wdev)
2167 struct net_device *dev = wdev->netdev;
2170 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2175 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2176 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2177 goto nla_put_failure;
2179 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2180 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2181 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2182 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2183 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2184 rdev->devlist_generation ^
2185 (cfg80211_rdev_list_generation << 2)))
2186 goto nla_put_failure;
2188 if (rdev->ops->get_channel) {
2190 struct cfg80211_chan_def chandef;
2192 ret = rdev_get_channel(rdev, wdev, &chandef);
2194 if (nl80211_send_chandef(msg, &chandef))
2195 goto nla_put_failure;
2199 if (wdev->ssid_len) {
2200 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2201 goto nla_put_failure;
2204 return genlmsg_end(msg, hdr);
2207 genlmsg_cancel(msg, hdr);
2211 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2215 int wp_start = cb->args[0];
2216 int if_start = cb->args[1];
2217 struct cfg80211_registered_device *rdev;
2218 struct wireless_dev *wdev;
2220 mutex_lock(&cfg80211_mutex);
2221 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2222 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2224 if (wp_idx < wp_start) {
2230 mutex_lock(&rdev->devlist_mtx);
2231 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2232 if (if_idx < if_start) {
2236 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2237 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2239 mutex_unlock(&rdev->devlist_mtx);
2244 mutex_unlock(&rdev->devlist_mtx);
2249 mutex_unlock(&cfg80211_mutex);
2251 cb->args[0] = wp_idx;
2252 cb->args[1] = if_idx;
2257 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2259 struct sk_buff *msg;
2260 struct cfg80211_registered_device *dev = info->user_ptr[0];
2261 struct wireless_dev *wdev = info->user_ptr[1];
2263 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2267 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2273 return genlmsg_reply(msg, info);
2276 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2277 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2278 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2279 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2280 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2281 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2284 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2286 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2294 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2295 nla, mntr_flags_policy))
2298 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2300 *mntrflags |= (1<<flag);
2305 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2306 struct net_device *netdev, u8 use_4addr,
2307 enum nl80211_iftype iftype)
2310 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2316 case NL80211_IFTYPE_AP_VLAN:
2317 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2320 case NL80211_IFTYPE_STATION:
2321 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2331 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2334 struct vif_params params;
2336 enum nl80211_iftype otype, ntype;
2337 struct net_device *dev = info->user_ptr[1];
2338 u32 _flags, *flags = NULL;
2339 bool change = false;
2341 memset(¶ms, 0, sizeof(params));
2343 otype = ntype = dev->ieee80211_ptr->iftype;
2345 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2346 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2349 if (ntype > NL80211_IFTYPE_MAX)
2353 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2354 struct wireless_dev *wdev = dev->ieee80211_ptr;
2356 if (ntype != NL80211_IFTYPE_MESH_POINT)
2358 if (netif_running(dev))
2362 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2363 IEEE80211_MAX_MESH_ID_LEN);
2364 wdev->mesh_id_up_len =
2365 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2366 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2367 wdev->mesh_id_up_len);
2371 if (info->attrs[NL80211_ATTR_4ADDR]) {
2372 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2374 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2378 params.use_4addr = -1;
2381 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2382 if (ntype != NL80211_IFTYPE_MONITOR)
2384 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2394 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2398 if (!err && params.use_4addr != -1)
2399 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2404 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2407 struct vif_params params;
2408 struct wireless_dev *wdev;
2409 struct sk_buff *msg;
2411 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2414 memset(¶ms, 0, sizeof(params));
2416 if (!info->attrs[NL80211_ATTR_IFNAME])
2419 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2420 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2421 if (type > NL80211_IFTYPE_MAX)
2425 if (!rdev->ops->add_virtual_intf ||
2426 !(rdev->wiphy.interface_modes & (1 << type)))
2429 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2430 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2432 if (!is_valid_ether_addr(params.macaddr))
2433 return -EADDRNOTAVAIL;
2436 if (info->attrs[NL80211_ATTR_4ADDR]) {
2437 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2438 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2443 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2447 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2448 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2450 wdev = rdev_add_virtual_intf(rdev,
2451 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2452 type, err ? NULL : &flags, ¶ms);
2455 return PTR_ERR(wdev);
2459 case NL80211_IFTYPE_MESH_POINT:
2460 if (!info->attrs[NL80211_ATTR_MESH_ID])
2463 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2464 IEEE80211_MAX_MESH_ID_LEN);
2465 wdev->mesh_id_up_len =
2466 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2467 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2468 wdev->mesh_id_up_len);
2471 case NL80211_IFTYPE_P2P_DEVICE:
2473 * P2P Device doesn't have a netdev, so doesn't go
2474 * through the netdev notifier and must be added here
2476 mutex_init(&wdev->mtx);
2477 INIT_LIST_HEAD(&wdev->event_list);
2478 spin_lock_init(&wdev->event_lock);
2479 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2480 spin_lock_init(&wdev->mgmt_registrations_lock);
2482 mutex_lock(&rdev->devlist_mtx);
2483 wdev->identifier = ++rdev->wdev_id;
2484 list_add_rcu(&wdev->list, &rdev->wdev_list);
2485 rdev->devlist_generation++;
2486 mutex_unlock(&rdev->devlist_mtx);
2492 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2498 return genlmsg_reply(msg, info);
2501 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2504 struct wireless_dev *wdev = info->user_ptr[1];
2506 if (!rdev->ops->del_virtual_intf)
2510 * If we remove a wireless device without a netdev then clear
2511 * user_ptr[1] so that nl80211_post_doit won't dereference it
2512 * to check if it needs to do dev_put(). Otherwise it crashes
2513 * since the wdev has been freed, unlike with a netdev where
2514 * we need the dev_put() for the netdev to really be freed.
2517 info->user_ptr[1] = NULL;
2519 return rdev_del_virtual_intf(rdev, wdev);
2522 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2525 struct net_device *dev = info->user_ptr[1];
2528 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2531 if (!rdev->ops->set_noack_map)
2534 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2536 return rdev_set_noack_map(rdev, dev, noack_map);
2539 struct get_key_cookie {
2540 struct sk_buff *msg;
2545 static void get_key_callback(void *c, struct key_params *params)
2548 struct get_key_cookie *cookie = c;
2551 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2552 params->key_len, params->key)) ||
2554 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2555 params->seq_len, params->seq)) ||
2557 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2559 goto nla_put_failure;
2561 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2563 goto nla_put_failure;
2566 nla_put(cookie->msg, NL80211_KEY_DATA,
2567 params->key_len, params->key)) ||
2569 nla_put(cookie->msg, NL80211_KEY_SEQ,
2570 params->seq_len, params->seq)) ||
2572 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2574 goto nla_put_failure;
2576 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2577 goto nla_put_failure;
2579 nla_nest_end(cookie->msg, key);
2586 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2590 struct net_device *dev = info->user_ptr[1];
2592 const u8 *mac_addr = NULL;
2594 struct get_key_cookie cookie = {
2598 struct sk_buff *msg;
2600 if (info->attrs[NL80211_ATTR_KEY_IDX])
2601 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2606 if (info->attrs[NL80211_ATTR_MAC])
2607 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2609 pairwise = !!mac_addr;
2610 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2611 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2612 if (kt >= NUM_NL80211_KEYTYPES)
2614 if (kt != NL80211_KEYTYPE_GROUP &&
2615 kt != NL80211_KEYTYPE_PAIRWISE)
2617 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2620 if (!rdev->ops->get_key)
2623 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2627 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2628 NL80211_CMD_NEW_KEY);
2630 return PTR_ERR(hdr);
2633 cookie.idx = key_idx;
2635 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2636 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2637 goto nla_put_failure;
2639 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2640 goto nla_put_failure;
2642 if (pairwise && mac_addr &&
2643 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2646 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2653 goto nla_put_failure;
2655 genlmsg_end(msg, hdr);
2656 return genlmsg_reply(msg, info);
2665 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2668 struct key_parse key;
2670 struct net_device *dev = info->user_ptr[1];
2672 err = nl80211_parse_key(info, &key);
2679 /* only support setting default key */
2680 if (!key.def && !key.defmgmt)
2683 wdev_lock(dev->ieee80211_ptr);
2686 if (!rdev->ops->set_default_key) {
2691 err = nl80211_key_allowed(dev->ieee80211_ptr);
2695 err = rdev_set_default_key(rdev, dev, key.idx,
2696 key.def_uni, key.def_multi);
2701 #ifdef CONFIG_CFG80211_WEXT
2702 dev->ieee80211_ptr->wext.default_key = key.idx;
2705 if (key.def_uni || !key.def_multi) {
2710 if (!rdev->ops->set_default_mgmt_key) {
2715 err = nl80211_key_allowed(dev->ieee80211_ptr);
2719 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2723 #ifdef CONFIG_CFG80211_WEXT
2724 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2729 wdev_unlock(dev->ieee80211_ptr);
2734 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2736 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2738 struct net_device *dev = info->user_ptr[1];
2739 struct key_parse key;
2740 const u8 *mac_addr = NULL;
2742 err = nl80211_parse_key(info, &key);
2749 if (info->attrs[NL80211_ATTR_MAC])
2750 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2752 if (key.type == -1) {
2754 key.type = NL80211_KEYTYPE_PAIRWISE;
2756 key.type = NL80211_KEYTYPE_GROUP;
2760 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2761 key.type != NL80211_KEYTYPE_GROUP)
2764 if (!rdev->ops->add_key)
2767 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2768 key.type == NL80211_KEYTYPE_PAIRWISE,
2772 wdev_lock(dev->ieee80211_ptr);
2773 err = nl80211_key_allowed(dev->ieee80211_ptr);
2775 err = rdev_add_key(rdev, dev, key.idx,
2776 key.type == NL80211_KEYTYPE_PAIRWISE,
2778 wdev_unlock(dev->ieee80211_ptr);
2783 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2785 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2787 struct net_device *dev = info->user_ptr[1];
2788 u8 *mac_addr = NULL;
2789 struct key_parse key;
2791 err = nl80211_parse_key(info, &key);
2795 if (info->attrs[NL80211_ATTR_MAC])
2796 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2798 if (key.type == -1) {
2800 key.type = NL80211_KEYTYPE_PAIRWISE;
2802 key.type = NL80211_KEYTYPE_GROUP;
2806 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2807 key.type != NL80211_KEYTYPE_GROUP)
2810 if (!rdev->ops->del_key)
2813 wdev_lock(dev->ieee80211_ptr);
2814 err = nl80211_key_allowed(dev->ieee80211_ptr);
2816 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2817 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2821 err = rdev_del_key(rdev, dev, key.idx,
2822 key.type == NL80211_KEYTYPE_PAIRWISE,
2825 #ifdef CONFIG_CFG80211_WEXT
2827 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2828 dev->ieee80211_ptr->wext.default_key = -1;
2829 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2830 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2833 wdev_unlock(dev->ieee80211_ptr);
2838 /* This function returns an error or the number of nested attributes */
2839 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2841 struct nlattr *attr;
2842 int n_entries = 0, tmp;
2844 nla_for_each_nested(attr, nl_attr, tmp) {
2845 if (nla_len(attr) != ETH_ALEN)
2855 * This function parses ACL information and allocates memory for ACL data.
2856 * On successful return, the calling function is responsible to free the
2857 * ACL buffer returned by this function.
2859 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2860 struct genl_info *info)
2862 enum nl80211_acl_policy acl_policy;
2863 struct nlattr *attr;
2864 struct cfg80211_acl_data *acl;
2865 int i = 0, n_entries, tmp;
2867 if (!wiphy->max_acl_mac_addrs)
2868 return ERR_PTR(-EOPNOTSUPP);
2870 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2871 return ERR_PTR(-EINVAL);
2873 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2874 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2875 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2876 return ERR_PTR(-EINVAL);
2878 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2879 return ERR_PTR(-EINVAL);
2881 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2883 return ERR_PTR(n_entries);
2885 if (n_entries > wiphy->max_acl_mac_addrs)
2886 return ERR_PTR(-ENOTSUPP);
2888 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2891 return ERR_PTR(-ENOMEM);
2893 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2894 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2898 acl->n_acl_entries = n_entries;
2899 acl->acl_policy = acl_policy;
2904 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2907 struct net_device *dev = info->user_ptr[1];
2908 struct cfg80211_acl_data *acl;
2911 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2912 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2915 if (!dev->ieee80211_ptr->beacon_interval)
2918 acl = parse_acl_data(&rdev->wiphy, info);
2920 return PTR_ERR(acl);
2922 err = rdev_set_mac_acl(rdev, dev, acl);
2929 static int nl80211_parse_beacon(struct genl_info *info,
2930 struct cfg80211_beacon_data *bcn)
2932 bool haveinfo = false;
2934 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2935 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2936 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2937 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2940 memset(bcn, 0, sizeof(*bcn));
2942 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2943 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2944 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2950 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2951 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2953 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2960 if (info->attrs[NL80211_ATTR_IE]) {
2961 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2962 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2965 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2966 bcn->proberesp_ies =
2967 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2968 bcn->proberesp_ies_len =
2969 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2972 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2973 bcn->assocresp_ies =
2974 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2975 bcn->assocresp_ies_len =
2976 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2979 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2981 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2982 bcn->probe_resp_len =
2983 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2989 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2990 struct cfg80211_ap_settings *params)
2992 struct wireless_dev *wdev;
2995 mutex_lock(&rdev->devlist_mtx);
2997 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2998 if (wdev->iftype != NL80211_IFTYPE_AP &&
2999 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3002 if (!wdev->preset_chandef.chan)
3005 params->chandef = wdev->preset_chandef;
3010 mutex_unlock(&rdev->devlist_mtx);
3015 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3016 enum nl80211_auth_type auth_type,
3017 enum nl80211_commands cmd)
3019 if (auth_type > NL80211_AUTHTYPE_MAX)
3023 case NL80211_CMD_AUTHENTICATE:
3024 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3025 auth_type == NL80211_AUTHTYPE_SAE)
3028 case NL80211_CMD_CONNECT:
3029 case NL80211_CMD_START_AP:
3030 /* SAE not supported yet */
3031 if (auth_type == NL80211_AUTHTYPE_SAE)
3039 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3042 struct net_device *dev = info->user_ptr[1];
3043 struct wireless_dev *wdev = dev->ieee80211_ptr;
3044 struct cfg80211_ap_settings params;
3046 u8 radar_detect_width = 0;
3048 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3049 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3052 if (!rdev->ops->start_ap)
3055 if (wdev->beacon_interval)
3058 memset(¶ms, 0, sizeof(params));
3060 /* these are required for START_AP */
3061 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3062 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3063 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3066 err = nl80211_parse_beacon(info, ¶ms.beacon);
3070 params.beacon_interval =
3071 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3072 params.dtim_period =
3073 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3075 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3080 * In theory, some of these attributes should be required here
3081 * but since they were not used when the command was originally
3082 * added, keep them optional for old user space programs to let
3083 * them continue to work with drivers that do not need the
3084 * additional information -- drivers must check!
3086 if (info->attrs[NL80211_ATTR_SSID]) {
3087 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3089 nla_len(info->attrs[NL80211_ATTR_SSID]);
3090 if (params.ssid_len == 0 ||
3091 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3095 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3096 params.hidden_ssid = nla_get_u32(
3097 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3098 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3099 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3100 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3104 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3106 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3107 params.auth_type = nla_get_u32(
3108 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3109 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3110 NL80211_CMD_START_AP))
3113 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3115 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3116 NL80211_MAX_NR_CIPHER_SUITES);
3120 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3121 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3123 params.inactivity_timeout = nla_get_u16(
3124 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3127 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3128 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3130 params.p2p_ctwindow =
3131 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3132 if (params.p2p_ctwindow > 127)
3134 if (params.p2p_ctwindow != 0 &&
3135 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3139 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3142 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3144 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3147 params.p2p_opp_ps = tmp;
3148 if (params.p2p_opp_ps != 0 &&
3149 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3153 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3154 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3157 } else if (wdev->preset_chandef.chan) {
3158 params.chandef = wdev->preset_chandef;
3159 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3162 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
3165 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
3169 radar_detect_width = BIT(params.chandef.width);
3170 params.radar_required = true;
3173 mutex_lock(&rdev->devlist_mtx);
3174 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3175 params.chandef.chan,
3177 radar_detect_width);
3178 mutex_unlock(&rdev->devlist_mtx);
3183 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3184 params.acl = parse_acl_data(&rdev->wiphy, info);
3185 if (IS_ERR(params.acl))
3186 return PTR_ERR(params.acl);
3189 err = rdev_start_ap(rdev, dev, ¶ms);
3191 wdev->preset_chandef = params.chandef;
3192 wdev->beacon_interval = params.beacon_interval;
3193 wdev->channel = params.chandef.chan;
3194 wdev->ssid_len = params.ssid_len;
3195 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3203 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3205 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3206 struct net_device *dev = info->user_ptr[1];
3207 struct wireless_dev *wdev = dev->ieee80211_ptr;
3208 struct cfg80211_beacon_data params;
3211 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3212 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3215 if (!rdev->ops->change_beacon)
3218 if (!wdev->beacon_interval)
3221 err = nl80211_parse_beacon(info, ¶ms);
3225 return rdev_change_beacon(rdev, dev, ¶ms);
3228 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3231 struct net_device *dev = info->user_ptr[1];
3233 return cfg80211_stop_ap(rdev, dev);
3236 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3237 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3238 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3239 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3240 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3241 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3242 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3245 static int parse_station_flags(struct genl_info *info,
3246 enum nl80211_iftype iftype,
3247 struct station_parameters *params)
3249 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3254 * Try parsing the new attribute first so userspace
3255 * can specify both for older kernels.
3257 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3259 struct nl80211_sta_flag_update *sta_flags;
3261 sta_flags = nla_data(nla);
3262 params->sta_flags_mask = sta_flags->mask;
3263 params->sta_flags_set = sta_flags->set;
3264 params->sta_flags_set &= params->sta_flags_mask;
3265 if ((params->sta_flags_mask |
3266 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3271 /* if present, parse the old attribute */
3273 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3277 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3278 nla, sta_flags_policy))
3282 * Only allow certain flags for interface types so that
3283 * other attributes are silently ignored. Remember that
3284 * this is backward compatibility code with old userspace
3285 * and shouldn't be hit in other cases anyway.
3288 case NL80211_IFTYPE_AP:
3289 case NL80211_IFTYPE_AP_VLAN:
3290 case NL80211_IFTYPE_P2P_GO:
3291 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3292 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3293 BIT(NL80211_STA_FLAG_WME) |
3294 BIT(NL80211_STA_FLAG_MFP);
3296 case NL80211_IFTYPE_P2P_CLIENT:
3297 case NL80211_IFTYPE_STATION:
3298 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3299 BIT(NL80211_STA_FLAG_TDLS_PEER);
3301 case NL80211_IFTYPE_MESH_POINT:
3302 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3303 BIT(NL80211_STA_FLAG_MFP) |
3304 BIT(NL80211_STA_FLAG_AUTHORIZED);
3309 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3311 params->sta_flags_set |= (1<<flag);
3313 /* no longer support new API additions in old API */
3314 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3322 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3325 struct nlattr *rate;
3329 rate = nla_nest_start(msg, attr);
3333 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3334 bitrate = cfg80211_calculate_bitrate(info);
3335 /* report 16-bit bitrate only if we can */
3336 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3338 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3340 if (bitrate_compat > 0 &&
3341 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3344 if (info->flags & RATE_INFO_FLAGS_MCS) {
3345 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3347 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3348 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3350 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3351 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3353 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3354 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3356 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3358 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3359 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3361 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3362 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3364 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3365 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3367 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3368 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3370 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3371 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3375 nla_nest_end(msg, rate);
3379 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3381 struct cfg80211_registered_device *rdev,
3382 struct net_device *dev,
3383 const u8 *mac_addr, struct station_info *sinfo)
3386 struct nlattr *sinfoattr, *bss_param;
3388 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3392 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3393 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3394 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3395 goto nla_put_failure;
3397 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3399 goto nla_put_failure;
3400 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3401 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3402 sinfo->connected_time))
3403 goto nla_put_failure;
3404 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3405 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3406 sinfo->inactive_time))
3407 goto nla_put_failure;
3408 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3409 STATION_INFO_RX_BYTES64)) &&
3410 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3411 (u32)sinfo->rx_bytes))
3412 goto nla_put_failure;
3413 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3414 NL80211_STA_INFO_TX_BYTES64)) &&
3415 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3416 (u32)sinfo->tx_bytes))
3417 goto nla_put_failure;
3418 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3419 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3421 goto nla_put_failure;
3422 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3423 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3425 goto nla_put_failure;
3426 if ((sinfo->filled & STATION_INFO_LLID) &&
3427 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3428 goto nla_put_failure;
3429 if ((sinfo->filled & STATION_INFO_PLID) &&
3430 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3431 goto nla_put_failure;
3432 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3433 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3434 sinfo->plink_state))
3435 goto nla_put_failure;
3436 switch (rdev->wiphy.signal_type) {
3437 case CFG80211_SIGNAL_TYPE_MBM:
3438 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3439 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3441 goto nla_put_failure;
3442 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3443 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3445 goto nla_put_failure;
3450 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3451 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3452 NL80211_STA_INFO_TX_BITRATE))
3453 goto nla_put_failure;
3455 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3456 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3457 NL80211_STA_INFO_RX_BITRATE))
3458 goto nla_put_failure;
3460 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3461 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3463 goto nla_put_failure;
3464 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3465 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3467 goto nla_put_failure;
3468 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3469 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3471 goto nla_put_failure;
3472 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3473 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3475 goto nla_put_failure;
3476 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3477 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3478 sinfo->beacon_loss_count))
3479 goto nla_put_failure;
3480 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3481 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3483 goto nla_put_failure;
3484 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3485 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3487 goto nla_put_failure;
3488 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3489 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3491 goto nla_put_failure;
3492 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3493 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3495 goto nla_put_failure;
3497 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3498 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3499 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3500 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3501 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3502 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3503 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3504 sinfo->bss_param.dtim_period) ||
3505 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3506 sinfo->bss_param.beacon_interval))
3507 goto nla_put_failure;
3509 nla_nest_end(msg, bss_param);
3511 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3512 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3513 sizeof(struct nl80211_sta_flag_update),
3515 goto nla_put_failure;
3516 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3517 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3519 goto nla_put_failure;
3520 nla_nest_end(msg, sinfoattr);
3522 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3523 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3524 sinfo->assoc_req_ies))
3525 goto nla_put_failure;
3527 return genlmsg_end(msg, hdr);
3530 genlmsg_cancel(msg, hdr);
3534 static int nl80211_dump_station(struct sk_buff *skb,
3535 struct netlink_callback *cb)
3537 struct station_info sinfo;
3538 struct cfg80211_registered_device *dev;
3539 struct wireless_dev *wdev;
3540 u8 mac_addr[ETH_ALEN];
3541 int sta_idx = cb->args[2];
3544 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
3548 if (!wdev->netdev) {
3553 if (!dev->ops->dump_station) {
3559 memset(&sinfo, 0, sizeof(sinfo));
3560 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
3567 if (nl80211_send_station(skb,
3568 NETLINK_CB(cb->skb).portid,
3569 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3570 dev, wdev->netdev, mac_addr,
3579 cb->args[2] = sta_idx;
3582 nl80211_finish_wdev_dump(dev);
3587 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3590 struct net_device *dev = info->user_ptr[1];
3591 struct station_info sinfo;
3592 struct sk_buff *msg;
3593 u8 *mac_addr = NULL;
3596 memset(&sinfo, 0, sizeof(sinfo));
3598 if (!info->attrs[NL80211_ATTR_MAC])
3601 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3603 if (!rdev->ops->get_station)
3606 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3614 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3615 rdev, dev, mac_addr, &sinfo) < 0) {
3620 return genlmsg_reply(msg, info);
3623 int cfg80211_check_station_change(struct wiphy *wiphy,
3624 struct station_parameters *params,
3625 enum cfg80211_station_type statype)
3627 if (params->listen_interval != -1)
3632 /* When you run into this, adjust the code below for the new flag */
3633 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3636 case CFG80211_STA_MESH_PEER_KERNEL:
3637 case CFG80211_STA_MESH_PEER_USER:
3639 * No ignoring the TDLS flag here -- the userspace mesh
3640 * code doesn't have the bug of including TDLS in the
3643 if (params->sta_flags_mask &
3644 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3645 BIT(NL80211_STA_FLAG_MFP) |
3646 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3649 case CFG80211_STA_TDLS_PEER_SETUP:
3650 case CFG80211_STA_TDLS_PEER_ACTIVE:
3651 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3653 /* ignore since it can't change */
3654 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3657 /* disallow mesh-specific things */
3658 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3660 if (params->local_pm)
3662 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3666 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3667 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3668 /* TDLS can't be set, ... */
3669 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3672 * ... but don't bother the driver with it. This works around
3673 * a hostapd/wpa_supplicant issue -- it always includes the
3674 * TLDS_PEER flag in the mask even for AP mode.
3676 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3679 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3680 /* reject other things that can't change */
3681 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3683 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3685 if (params->supported_rates)
3687 if (params->ext_capab || params->ht_capa || params->vht_capa)
3691 if (statype != CFG80211_STA_AP_CLIENT) {
3697 case CFG80211_STA_AP_MLME_CLIENT:
3698 /* Use this only for authorizing/unauthorizing a station */
3699 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3702 case CFG80211_STA_AP_CLIENT:
3703 /* accept only the listed bits */
3704 if (params->sta_flags_mask &
3705 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3706 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3707 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3708 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3709 BIT(NL80211_STA_FLAG_WME) |
3710 BIT(NL80211_STA_FLAG_MFP)))
3713 /* but authenticated/associated only if driver handles it */
3714 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3715 params->sta_flags_mask &
3716 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3717 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3720 case CFG80211_STA_IBSS:
3721 case CFG80211_STA_AP_STA:
3722 /* reject any changes other than AUTHORIZED */
3723 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3726 case CFG80211_STA_TDLS_PEER_SETUP:
3727 /* reject any changes other than AUTHORIZED or WME */
3728 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3729 BIT(NL80211_STA_FLAG_WME)))
3731 /* force (at least) rates when authorizing */
3732 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3733 !params->supported_rates)
3736 case CFG80211_STA_TDLS_PEER_ACTIVE:
3737 /* reject any changes */
3739 case CFG80211_STA_MESH_PEER_KERNEL:
3740 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3743 case CFG80211_STA_MESH_PEER_USER:
3744 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3751 EXPORT_SYMBOL(cfg80211_check_station_change);
3754 * Get vlan interface making sure it is running and on the right wiphy.
3756 static struct net_device *get_vlan(struct genl_info *info,
3757 struct cfg80211_registered_device *rdev)
3759 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3760 struct net_device *v;
3766 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3768 return ERR_PTR(-ENODEV);
3770 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3775 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3776 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3777 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3782 if (!netif_running(v)) {
3790 return ERR_PTR(ret);
3793 static struct nla_policy
3794 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3795 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3796 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3799 static int nl80211_parse_sta_wme(struct genl_info *info,
3800 struct station_parameters *params)
3802 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3806 /* parse WME attributes if present */
3807 if (!info->attrs[NL80211_ATTR_STA_WME])
3810 nla = info->attrs[NL80211_ATTR_STA_WME];
3811 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3812 nl80211_sta_wme_policy);
3816 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3817 params->uapsd_queues = nla_get_u8(
3818 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3819 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3822 if (tb[NL80211_STA_WME_MAX_SP])
3823 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3825 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3828 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3833 static int nl80211_set_station_tdls(struct genl_info *info,
3834 struct station_parameters *params)
3836 /* Dummy STA entry gets updated once the peer capabilities are known */
3837 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3839 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3840 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3842 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3844 return nl80211_parse_sta_wme(info, params);
3847 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3850 struct net_device *dev = info->user_ptr[1];
3851 struct station_parameters params;
3855 memset(¶ms, 0, sizeof(params));
3857 params.listen_interval = -1;
3859 if (!rdev->ops->change_station)
3862 if (info->attrs[NL80211_ATTR_STA_AID])
3865 if (!info->attrs[NL80211_ATTR_MAC])
3868 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3870 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3871 params.supported_rates =
3872 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3873 params.supported_rates_len =
3874 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3877 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3879 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3880 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3883 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3885 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3886 params.ext_capab_len =
3887 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3890 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3893 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3896 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
3897 params.plink_action =
3898 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3899 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3903 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
3904 params.plink_state =
3905 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3906 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3908 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3911 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3912 enum nl80211_mesh_power_mode pm = nla_get_u32(
3913 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3915 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3916 pm > NL80211_MESH_POWER_MAX)
3919 params.local_pm = pm;
3922 /* Include parameters for TDLS peer (will check later) */
3923 err = nl80211_set_station_tdls(info, ¶ms);
3927 params.vlan = get_vlan(info, rdev);
3928 if (IS_ERR(params.vlan))
3929 return PTR_ERR(params.vlan);
3931 switch (dev->ieee80211_ptr->iftype) {
3932 case NL80211_IFTYPE_AP:
3933 case NL80211_IFTYPE_AP_VLAN:
3934 case NL80211_IFTYPE_P2P_GO:
3935 case NL80211_IFTYPE_P2P_CLIENT:
3936 case NL80211_IFTYPE_STATION:
3937 case NL80211_IFTYPE_ADHOC:
3938 case NL80211_IFTYPE_MESH_POINT:
3945 /* driver will call cfg80211_check_station_change() */
3946 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3950 dev_put(params.vlan);
3955 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3959 struct net_device *dev = info->user_ptr[1];
3960 struct station_parameters params;
3961 u8 *mac_addr = NULL;
3963 memset(¶ms, 0, sizeof(params));
3965 if (!rdev->ops->add_station)
3968 if (!info->attrs[NL80211_ATTR_MAC])
3971 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3974 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3977 if (!info->attrs[NL80211_ATTR_STA_AID])
3980 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3981 params.supported_rates =
3982 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3983 params.supported_rates_len =
3984 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3985 params.listen_interval =
3986 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3988 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3989 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3992 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3994 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3995 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3998 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4000 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4001 params.ext_capab_len =
4002 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4005 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4007 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4009 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4011 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4013 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4014 params.plink_action =
4015 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4016 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4020 err = nl80211_parse_sta_wme(info, ¶ms);
4024 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4027 /* When you run into this, adjust the code below for the new flag */
4028 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4030 switch (dev->ieee80211_ptr->iftype) {
4031 case NL80211_IFTYPE_AP:
4032 case NL80211_IFTYPE_AP_VLAN:
4033 case NL80211_IFTYPE_P2P_GO:
4034 /* ignore WME attributes if iface/sta is not capable */
4035 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4036 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4037 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4039 /* TDLS peers cannot be added */
4040 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4042 /* but don't bother the driver with it */
4043 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4045 /* allow authenticated/associated only if driver handles it */
4046 if (!(rdev->wiphy.features &
4047 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4048 params.sta_flags_mask &
4049 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4050 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4053 /* must be last in here for error handling */
4054 params.vlan = get_vlan(info, rdev);
4055 if (IS_ERR(params.vlan))
4056 return PTR_ERR(params.vlan);
4058 case NL80211_IFTYPE_MESH_POINT:
4059 /* ignore uAPSD data */
4060 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4062 /* associated is disallowed */
4063 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4065 /* TDLS peers cannot be added */
4066 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4069 case NL80211_IFTYPE_STATION:
4070 case NL80211_IFTYPE_P2P_CLIENT:
4071 /* ignore uAPSD data */
4072 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4074 /* these are disallowed */
4075 if (params.sta_flags_mask &
4076 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4077 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4079 /* Only TDLS peers can be added */
4080 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4082 /* Can only add if TDLS ... */
4083 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4085 /* ... with external setup is supported */
4086 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4089 * Older wpa_supplicant versions always mark the TDLS peer
4090 * as authorized, but it shouldn't yet be.
4092 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4098 /* be aware of params.vlan when changing code here */
4100 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4103 dev_put(params.vlan);
4107 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4110 struct net_device *dev = info->user_ptr[1];
4111 u8 *mac_addr = NULL;
4113 if (info->attrs[NL80211_ATTR_MAC])
4114 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4116 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4117 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4118 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4119 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4122 if (!rdev->ops->del_station)
4125 return rdev_del_station(rdev, dev, mac_addr);
4128 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4129 int flags, struct net_device *dev,
4130 u8 *dst, u8 *next_hop,
4131 struct mpath_info *pinfo)
4134 struct nlattr *pinfoattr;
4136 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4140 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4141 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4142 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4143 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4144 goto nla_put_failure;
4146 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4148 goto nla_put_failure;
4149 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4150 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4152 goto nla_put_failure;
4153 if (((pinfo->filled & MPATH_INFO_SN) &&
4154 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4155 ((pinfo->filled & MPATH_INFO_METRIC) &&
4156 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4158 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4159 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4161 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4162 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4164 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4165 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4166 pinfo->discovery_timeout)) ||
4167 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4168 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4169 pinfo->discovery_retries)))
4170 goto nla_put_failure;
4172 nla_nest_end(msg, pinfoattr);
4174 return genlmsg_end(msg, hdr);
4177 genlmsg_cancel(msg, hdr);
4181 static int nl80211_dump_mpath(struct sk_buff *skb,
4182 struct netlink_callback *cb)
4184 struct mpath_info pinfo;
4185 struct cfg80211_registered_device *dev;
4186 struct wireless_dev *wdev;
4188 u8 next_hop[ETH_ALEN];
4189 int path_idx = cb->args[2];
4192 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
4196 if (!dev->ops->dump_mpath) {
4201 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4207 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4214 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4215 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4216 wdev->netdev, dst, next_hop,
4225 cb->args[2] = path_idx;
4228 nl80211_finish_wdev_dump(dev);
4232 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4236 struct net_device *dev = info->user_ptr[1];
4237 struct mpath_info pinfo;
4238 struct sk_buff *msg;
4240 u8 next_hop[ETH_ALEN];
4242 memset(&pinfo, 0, sizeof(pinfo));
4244 if (!info->attrs[NL80211_ATTR_MAC])
4247 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4249 if (!rdev->ops->get_mpath)
4252 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4255 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4259 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4263 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4264 dev, dst, next_hop, &pinfo) < 0) {
4269 return genlmsg_reply(msg, info);
4272 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4275 struct net_device *dev = info->user_ptr[1];
4277 u8 *next_hop = NULL;
4279 if (!info->attrs[NL80211_ATTR_MAC])
4282 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4285 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4286 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4288 if (!rdev->ops->change_mpath)
4291 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4294 return rdev_change_mpath(rdev, dev, dst, next_hop);
4297 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4300 struct net_device *dev = info->user_ptr[1];
4302 u8 *next_hop = NULL;
4304 if (!info->attrs[NL80211_ATTR_MAC])
4307 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4310 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4311 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4313 if (!rdev->ops->add_mpath)
4316 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4319 return rdev_add_mpath(rdev, dev, dst, next_hop);
4322 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4325 struct net_device *dev = info->user_ptr[1];
4328 if (info->attrs[NL80211_ATTR_MAC])
4329 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4331 if (!rdev->ops->del_mpath)
4334 return rdev_del_mpath(rdev, dev, dst);
4337 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4339 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4340 struct net_device *dev = info->user_ptr[1];
4341 struct bss_parameters params;
4343 memset(¶ms, 0, sizeof(params));
4344 /* default to not changing parameters */
4345 params.use_cts_prot = -1;
4346 params.use_short_preamble = -1;
4347 params.use_short_slot_time = -1;
4348 params.ap_isolate = -1;
4349 params.ht_opmode = -1;
4350 params.p2p_ctwindow = -1;
4351 params.p2p_opp_ps = -1;
4353 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4354 params.use_cts_prot =
4355 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4356 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4357 params.use_short_preamble =
4358 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4359 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4360 params.use_short_slot_time =
4361 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4362 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4363 params.basic_rates =
4364 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4365 params.basic_rates_len =
4366 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4368 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4369 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4370 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4372 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4374 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4375 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4377 params.p2p_ctwindow =
4378 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4379 if (params.p2p_ctwindow < 0)
4381 if (params.p2p_ctwindow != 0 &&
4382 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4386 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4389 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4391 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4394 params.p2p_opp_ps = tmp;
4395 if (params.p2p_opp_ps &&
4396 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4400 if (!rdev->ops->change_bss)
4403 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4404 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4407 return rdev_change_bss(rdev, dev, ¶ms);
4410 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4411 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4412 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4413 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4414 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4415 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4416 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4419 static int parse_reg_rule(struct nlattr *tb[],
4420 struct ieee80211_reg_rule *reg_rule)
4422 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4423 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4425 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4427 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4429 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4431 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4433 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4436 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4438 freq_range->start_freq_khz =
4439 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4440 freq_range->end_freq_khz =
4441 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4442 freq_range->max_bandwidth_khz =
4443 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4445 power_rule->max_eirp =
4446 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4448 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4449 power_rule->max_antenna_gain =
4450 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4455 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4459 enum nl80211_user_reg_hint_type user_reg_hint_type;
4462 * You should only get this when cfg80211 hasn't yet initialized
4463 * completely when built-in to the kernel right between the time
4464 * window between nl80211_init() and regulatory_init(), if that is
4467 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4468 return -EINPROGRESS;
4470 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4473 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4475 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4476 user_reg_hint_type =
4477 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4479 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4481 switch (user_reg_hint_type) {
4482 case NL80211_USER_REG_HINT_USER:
4483 case NL80211_USER_REG_HINT_CELL_BASE:
4489 r = regulatory_hint_user(data, user_reg_hint_type);
4494 static int nl80211_get_mesh_config(struct sk_buff *skb,
4495 struct genl_info *info)
4497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4498 struct net_device *dev = info->user_ptr[1];
4499 struct wireless_dev *wdev = dev->ieee80211_ptr;
4500 struct mesh_config cur_params;
4503 struct nlattr *pinfoattr;
4504 struct sk_buff *msg;
4506 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4509 if (!rdev->ops->get_mesh_config)
4513 /* If not connected, get default parameters */
4514 if (!wdev->mesh_id_len)
4515 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4517 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4523 /* Draw up a netlink message to send back */
4524 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4527 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4528 NL80211_CMD_GET_MESH_CONFIG);
4531 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4533 goto nla_put_failure;
4534 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4535 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4536 cur_params.dot11MeshRetryTimeout) ||
4537 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4538 cur_params.dot11MeshConfirmTimeout) ||
4539 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4540 cur_params.dot11MeshHoldingTimeout) ||
4541 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4542 cur_params.dot11MeshMaxPeerLinks) ||
4543 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4544 cur_params.dot11MeshMaxRetries) ||
4545 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4546 cur_params.dot11MeshTTL) ||
4547 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4548 cur_params.element_ttl) ||
4549 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4550 cur_params.auto_open_plinks) ||
4551 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4552 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4553 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4554 cur_params.dot11MeshHWMPmaxPREQretries) ||
4555 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4556 cur_params.path_refresh_time) ||
4557 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4558 cur_params.min_discovery_timeout) ||
4559 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4560 cur_params.dot11MeshHWMPactivePathTimeout) ||
4561 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4562 cur_params.dot11MeshHWMPpreqMinInterval) ||
4563 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4564 cur_params.dot11MeshHWMPperrMinInterval) ||
4565 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4566 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4567 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4568 cur_params.dot11MeshHWMPRootMode) ||
4569 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4570 cur_params.dot11MeshHWMPRannInterval) ||
4571 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4572 cur_params.dot11MeshGateAnnouncementProtocol) ||
4573 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4574 cur_params.dot11MeshForwarding) ||
4575 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4576 cur_params.rssi_threshold) ||
4577 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4578 cur_params.ht_opmode) ||
4579 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4580 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4581 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4582 cur_params.dot11MeshHWMProotInterval) ||
4583 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4584 cur_params.dot11MeshHWMPconfirmationInterval) ||
4585 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4586 cur_params.power_mode) ||
4587 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4588 cur_params.dot11MeshAwakeWindowDuration))
4589 goto nla_put_failure;
4590 nla_nest_end(msg, pinfoattr);
4591 genlmsg_end(msg, hdr);
4592 return genlmsg_reply(msg, info);
4595 genlmsg_cancel(msg, hdr);
4601 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4602 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4603 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4604 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4605 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4606 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4607 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4608 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4609 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4610 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4611 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4612 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4613 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4614 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4615 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4616 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4617 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4618 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4619 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4620 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4621 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4622 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4623 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4624 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4625 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4626 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4627 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4628 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4631 static const struct nla_policy
4632 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4633 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4634 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4635 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4636 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4637 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4638 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4639 .len = IEEE80211_MAX_DATA_LEN },
4640 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4643 static int nl80211_parse_mesh_config(struct genl_info *info,
4644 struct mesh_config *cfg,
4647 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4650 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4653 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4655 cfg->param = fn(tb[attr]); \
4656 mask |= (1 << (attr - 1)); \
4661 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4663 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4664 info->attrs[NL80211_ATTR_MESH_CONFIG],
4665 nl80211_meshconf_params_policy))
4668 /* This makes sure that there aren't more than 32 mesh config
4669 * parameters (otherwise our bitfield scheme would not work.) */
4670 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4672 /* Fill in the params struct */
4673 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4674 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4676 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4677 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4679 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4680 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4682 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4683 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4685 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4686 mask, NL80211_MESHCONF_MAX_RETRIES,
4688 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4689 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4691 mask, NL80211_MESHCONF_ELEMENT_TTL,
4693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4694 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4696 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4698 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4701 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4703 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4704 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4706 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4707 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4711 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4715 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4719 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4722 dot11MeshHWMPnetDiameterTraversalTime,
4724 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4727 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4729 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4730 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4732 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4733 dot11MeshGateAnnouncementProtocol, 0, 1,
4734 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4736 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4737 mask, NL80211_MESHCONF_FORWARDING,
4739 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
4740 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4742 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4743 mask, NL80211_MESHCONF_HT_OPMODE,
4745 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4747 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4749 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4750 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4752 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4753 dot11MeshHWMPconfirmationInterval,
4755 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4757 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4758 NL80211_MESH_POWER_ACTIVE,
4759 NL80211_MESH_POWER_MAX,
4760 mask, NL80211_MESHCONF_POWER_MODE,
4762 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4764 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4770 #undef FILL_IN_MESH_PARAM_IF_SET
4773 static int nl80211_parse_mesh_setup(struct genl_info *info,
4774 struct mesh_setup *setup)
4776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4777 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4779 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4781 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4782 info->attrs[NL80211_ATTR_MESH_SETUP],
4783 nl80211_mesh_setup_params_policy))
4786 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4787 setup->sync_method =
4788 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4789 IEEE80211_SYNC_METHOD_VENDOR :
4790 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4792 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4793 setup->path_sel_proto =
4794 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4795 IEEE80211_PATH_PROTOCOL_VENDOR :
4796 IEEE80211_PATH_PROTOCOL_HWMP;
4798 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4799 setup->path_metric =
4800 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4801 IEEE80211_PATH_METRIC_VENDOR :
4802 IEEE80211_PATH_METRIC_AIRTIME;
4805 if (tb[NL80211_MESH_SETUP_IE]) {
4806 struct nlattr *ieattr =
4807 tb[NL80211_MESH_SETUP_IE];
4808 if (!is_valid_ie_attr(ieattr))
4810 setup->ie = nla_data(ieattr);
4811 setup->ie_len = nla_len(ieattr);
4813 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4814 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4816 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
4817 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4818 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4819 if (setup->is_secure)
4820 setup->user_mpm = true;
4825 static int nl80211_update_mesh_config(struct sk_buff *skb,
4826 struct genl_info *info)
4828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4829 struct net_device *dev = info->user_ptr[1];
4830 struct wireless_dev *wdev = dev->ieee80211_ptr;
4831 struct mesh_config cfg;
4835 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4838 if (!rdev->ops->update_mesh_config)
4841 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4846 if (!wdev->mesh_id_len)
4850 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4857 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4859 const struct ieee80211_regdomain *regdom;
4860 struct sk_buff *msg;
4862 struct nlattr *nl_reg_rules;
4866 mutex_lock(&cfg80211_mutex);
4868 if (!cfg80211_regdomain)
4871 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4877 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4878 NL80211_CMD_GET_REG);
4882 if (reg_last_request_cell_base() &&
4883 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4884 NL80211_USER_REG_HINT_CELL_BASE))
4885 goto nla_put_failure;
4888 regdom = rcu_dereference(cfg80211_regdomain);
4890 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4891 (regdom->dfs_region &&
4892 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4893 goto nla_put_failure_rcu;
4895 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4897 goto nla_put_failure_rcu;
4899 for (i = 0; i < regdom->n_reg_rules; i++) {
4900 struct nlattr *nl_reg_rule;
4901 const struct ieee80211_reg_rule *reg_rule;
4902 const struct ieee80211_freq_range *freq_range;
4903 const struct ieee80211_power_rule *power_rule;
4905 reg_rule = ®dom->reg_rules[i];
4906 freq_range = ®_rule->freq_range;
4907 power_rule = ®_rule->power_rule;
4909 nl_reg_rule = nla_nest_start(msg, i);
4911 goto nla_put_failure_rcu;
4913 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4915 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4916 freq_range->start_freq_khz) ||
4917 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4918 freq_range->end_freq_khz) ||
4919 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4920 freq_range->max_bandwidth_khz) ||
4921 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4922 power_rule->max_antenna_gain) ||
4923 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4924 power_rule->max_eirp))
4925 goto nla_put_failure_rcu;
4927 nla_nest_end(msg, nl_reg_rule);
4931 nla_nest_end(msg, nl_reg_rules);
4933 genlmsg_end(msg, hdr);
4934 err = genlmsg_reply(msg, info);
4937 nla_put_failure_rcu:
4940 genlmsg_cancel(msg, hdr);
4945 mutex_unlock(&cfg80211_mutex);
4949 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4951 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4952 struct nlattr *nl_reg_rule;
4953 char *alpha2 = NULL;
4954 int rem_reg_rules = 0, r = 0;
4955 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4957 struct ieee80211_regdomain *rd = NULL;
4959 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4962 if (!info->attrs[NL80211_ATTR_REG_RULES])
4965 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4967 if (info->attrs[NL80211_ATTR_DFS_REGION])
4968 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4970 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4973 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4977 size_of_regd = sizeof(struct ieee80211_regdomain) +
4978 num_rules * sizeof(struct ieee80211_reg_rule);
4980 rd = kzalloc(size_of_regd, GFP_KERNEL);
4984 rd->n_reg_rules = num_rules;
4985 rd->alpha2[0] = alpha2[0];
4986 rd->alpha2[1] = alpha2[1];
4989 * Disable DFS master mode if the DFS region was
4990 * not supported or known on this kernel.
4992 if (reg_supported_dfs_region(dfs_region))
4993 rd->dfs_region = dfs_region;
4995 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4997 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4998 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5000 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5006 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5012 mutex_lock(&cfg80211_mutex);
5015 /* set_regdom took ownership */
5017 mutex_unlock(&cfg80211_mutex);
5024 static int validate_scan_freqs(struct nlattr *freqs)
5026 struct nlattr *attr1, *attr2;
5027 int n_channels = 0, tmp1, tmp2;
5029 nla_for_each_nested(attr1, freqs, tmp1) {
5032 * Some hardware has a limited channel list for
5033 * scanning, and it is pretty much nonsensical
5034 * to scan for a channel twice, so disallow that
5035 * and don't require drivers to check that the
5036 * channel list they get isn't longer than what
5037 * they can scan, as long as they can scan all
5038 * the channels they registered at once.
5040 nla_for_each_nested(attr2, freqs, tmp2)
5041 if (attr1 != attr2 &&
5042 nla_get_u32(attr1) == nla_get_u32(attr2))
5049 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5052 struct wireless_dev *wdev = info->user_ptr[1];
5053 struct cfg80211_scan_request *request;
5054 struct nlattr *attr;
5055 struct wiphy *wiphy;
5056 int err, tmp, n_ssids = 0, n_channels, i;
5059 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5062 wiphy = &rdev->wiphy;
5064 if (!rdev->ops->scan)
5067 mutex_lock(&rdev->sched_scan_mtx);
5068 if (rdev->scan_req) {
5073 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5074 n_channels = validate_scan_freqs(
5075 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5081 enum ieee80211_band band;
5084 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5085 if (wiphy->bands[band])
5086 n_channels += wiphy->bands[band]->n_channels;
5089 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5090 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5093 if (n_ssids > wiphy->max_scan_ssids) {
5098 if (info->attrs[NL80211_ATTR_IE])
5099 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5103 if (ie_len > wiphy->max_scan_ie_len) {
5108 request = kzalloc(sizeof(*request)
5109 + sizeof(*request->ssids) * n_ssids
5110 + sizeof(*request->channels) * n_channels
5111 + ie_len, GFP_KERNEL);
5118 request->ssids = (void *)&request->channels[n_channels];
5119 request->n_ssids = n_ssids;
5122 request->ie = (void *)(request->ssids + n_ssids);
5124 request->ie = (void *)(request->channels + n_channels);
5128 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5129 /* user specified, bail out if channel not found */
5130 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5131 struct ieee80211_channel *chan;
5133 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5140 /* ignore disabled channels */
5141 if (chan->flags & IEEE80211_CHAN_DISABLED)
5144 request->channels[i] = chan;
5148 enum ieee80211_band band;
5151 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5153 if (!wiphy->bands[band])
5155 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5156 struct ieee80211_channel *chan;
5158 chan = &wiphy->bands[band]->channels[j];
5160 if (chan->flags & IEEE80211_CHAN_DISABLED)
5163 request->channels[i] = chan;
5174 request->n_channels = i;
5177 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5178 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5179 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5183 request->ssids[i].ssid_len = nla_len(attr);
5184 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5189 if (info->attrs[NL80211_ATTR_IE]) {
5190 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5191 memcpy((void *)request->ie,
5192 nla_data(info->attrs[NL80211_ATTR_IE]),
5196 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5197 if (wiphy->bands[i])
5199 (1 << wiphy->bands[i]->n_bitrates) - 1;
5201 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5202 nla_for_each_nested(attr,
5203 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5205 enum ieee80211_band band = nla_type(attr);
5207 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5211 err = ieee80211_get_ratemask(wiphy->bands[band],
5214 &request->rates[band]);
5220 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5221 request->flags = nla_get_u32(
5222 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5223 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5224 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5225 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5226 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5233 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5235 request->wdev = wdev;
5236 request->wiphy = &rdev->wiphy;
5237 request->scan_start = jiffies;
5239 rdev->scan_req = request;
5240 err = rdev_scan(rdev, request);
5243 nl80211_send_scan_start(rdev, wdev);
5245 dev_hold(wdev->netdev);
5248 rdev->scan_req = NULL;
5253 mutex_unlock(&rdev->sched_scan_mtx);
5257 static int nl80211_start_sched_scan(struct sk_buff *skb,
5258 struct genl_info *info)
5260 struct cfg80211_sched_scan_request *request;
5261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5262 struct net_device *dev = info->user_ptr[1];
5263 struct nlattr *attr;
5264 struct wiphy *wiphy;
5265 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5267 enum ieee80211_band band;
5269 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5271 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5272 !rdev->ops->sched_scan_start)
5275 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5278 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5281 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5285 wiphy = &rdev->wiphy;
5287 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5288 n_channels = validate_scan_freqs(
5289 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5295 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5296 if (wiphy->bands[band])
5297 n_channels += wiphy->bands[band]->n_channels;
5300 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5301 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5305 if (n_ssids > wiphy->max_sched_scan_ssids)
5308 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5309 nla_for_each_nested(attr,
5310 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5314 if (n_match_sets > wiphy->max_match_sets)
5317 if (info->attrs[NL80211_ATTR_IE])
5318 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5322 if (ie_len > wiphy->max_sched_scan_ie_len)
5325 mutex_lock(&rdev->sched_scan_mtx);
5327 if (rdev->sched_scan_req) {
5332 request = kzalloc(sizeof(*request)
5333 + sizeof(*request->ssids) * n_ssids
5334 + sizeof(*request->match_sets) * n_match_sets
5335 + sizeof(*request->channels) * n_channels
5336 + ie_len, GFP_KERNEL);
5343 request->ssids = (void *)&request->channels[n_channels];
5344 request->n_ssids = n_ssids;
5347 request->ie = (void *)(request->ssids + n_ssids);
5349 request->ie = (void *)(request->channels + n_channels);
5354 request->match_sets = (void *)(request->ie + ie_len);
5355 else if (request->ssids)
5356 request->match_sets =
5357 (void *)(request->ssids + n_ssids);
5359 request->match_sets =
5360 (void *)(request->channels + n_channels);
5362 request->n_match_sets = n_match_sets;
5365 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5366 /* user specified, bail out if channel not found */
5367 nla_for_each_nested(attr,
5368 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5370 struct ieee80211_channel *chan;
5372 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5379 /* ignore disabled channels */
5380 if (chan->flags & IEEE80211_CHAN_DISABLED)
5383 request->channels[i] = chan;
5388 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5390 if (!wiphy->bands[band])
5392 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5393 struct ieee80211_channel *chan;
5395 chan = &wiphy->bands[band]->channels[j];
5397 if (chan->flags & IEEE80211_CHAN_DISABLED)
5400 request->channels[i] = chan;
5411 request->n_channels = i;
5414 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5415 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5417 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5421 request->ssids[i].ssid_len = nla_len(attr);
5422 memcpy(request->ssids[i].ssid, nla_data(attr),
5429 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5430 nla_for_each_nested(attr,
5431 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5433 struct nlattr *ssid, *rssi;
5435 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5436 nla_data(attr), nla_len(attr),
5437 nl80211_match_policy);
5438 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5440 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5444 memcpy(request->match_sets[i].ssid.ssid,
5445 nla_data(ssid), nla_len(ssid));
5446 request->match_sets[i].ssid.ssid_len =
5449 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5451 request->rssi_thold = nla_get_u32(rssi);
5453 request->rssi_thold =
5454 NL80211_SCAN_RSSI_THOLD_OFF;
5459 if (info->attrs[NL80211_ATTR_IE]) {
5460 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5461 memcpy((void *)request->ie,
5462 nla_data(info->attrs[NL80211_ATTR_IE]),
5466 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5467 request->flags = nla_get_u32(
5468 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5469 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5470 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5471 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5472 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5479 request->wiphy = &rdev->wiphy;
5480 request->interval = interval;
5481 request->scan_start = jiffies;
5483 err = rdev_sched_scan_start(rdev, dev, request);
5485 rdev->sched_scan_req = request;
5486 nl80211_send_sched_scan(rdev, dev,
5487 NL80211_CMD_START_SCHED_SCAN);
5494 mutex_unlock(&rdev->sched_scan_mtx);
5498 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5499 struct genl_info *info)
5501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5504 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5505 !rdev->ops->sched_scan_stop)
5508 mutex_lock(&rdev->sched_scan_mtx);
5509 err = __cfg80211_stop_sched_scan(rdev, false);
5510 mutex_unlock(&rdev->sched_scan_mtx);
5515 static int nl80211_start_radar_detection(struct sk_buff *skb,
5516 struct genl_info *info)
5518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5519 struct net_device *dev = info->user_ptr[1];
5520 struct wireless_dev *wdev = dev->ieee80211_ptr;
5521 struct cfg80211_chan_def chandef;
5524 err = nl80211_parse_chandef(rdev, info, &chandef);
5528 if (wdev->cac_started)
5531 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5538 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5541 if (!rdev->ops->start_radar_detection)
5544 mutex_lock(&rdev->devlist_mtx);
5545 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5546 chandef.chan, CHAN_MODE_SHARED,
5547 BIT(chandef.width));
5551 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5553 wdev->channel = chandef.chan;
5554 wdev->cac_started = true;
5555 wdev->cac_start_time = jiffies;
5558 mutex_unlock(&rdev->devlist_mtx);
5563 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5565 struct cfg80211_registered_device *rdev,
5566 struct wireless_dev *wdev,
5567 struct cfg80211_internal_bss *intbss)
5569 struct cfg80211_bss *res = &intbss->pub;
5570 const struct cfg80211_bss_ies *ies;
5575 ASSERT_WDEV_LOCK(wdev);
5577 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5578 NL80211_CMD_NEW_SCAN_RESULTS);
5582 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5584 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5585 goto nla_put_failure;
5587 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5588 goto nla_put_failure;
5589 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5590 goto nla_put_failure;
5592 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5594 goto nla_put_failure;
5595 if ((!is_zero_ether_addr(res->bssid) &&
5596 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5597 goto nla_put_failure;
5600 ies = rcu_dereference(res->ies);
5602 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5603 goto fail_unlock_rcu;
5605 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5606 ies->len, ies->data))
5607 goto fail_unlock_rcu;
5609 ies = rcu_dereference(res->beacon_ies);
5611 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5612 goto fail_unlock_rcu;
5613 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5614 ies->len, ies->data))
5615 goto fail_unlock_rcu;
5619 if (res->beacon_interval &&
5620 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5621 goto nla_put_failure;
5622 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5623 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5624 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5625 jiffies_to_msecs(jiffies - intbss->ts)))
5626 goto nla_put_failure;
5628 switch (rdev->wiphy.signal_type) {
5629 case CFG80211_SIGNAL_TYPE_MBM:
5630 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5631 goto nla_put_failure;
5633 case CFG80211_SIGNAL_TYPE_UNSPEC:
5634 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5635 goto nla_put_failure;
5641 switch (wdev->iftype) {
5642 case NL80211_IFTYPE_P2P_CLIENT:
5643 case NL80211_IFTYPE_STATION:
5644 if (intbss == wdev->current_bss &&
5645 nla_put_u32(msg, NL80211_BSS_STATUS,
5646 NL80211_BSS_STATUS_ASSOCIATED))
5647 goto nla_put_failure;
5649 case NL80211_IFTYPE_ADHOC:
5650 if (intbss == wdev->current_bss &&
5651 nla_put_u32(msg, NL80211_BSS_STATUS,
5652 NL80211_BSS_STATUS_IBSS_JOINED))
5653 goto nla_put_failure;
5659 nla_nest_end(msg, bss);
5661 return genlmsg_end(msg, hdr);
5666 genlmsg_cancel(msg, hdr);
5670 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
5672 struct cfg80211_registered_device *rdev;
5673 struct cfg80211_internal_bss *scan;
5674 struct wireless_dev *wdev;
5675 int start = cb->args[2], idx = 0;
5678 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5683 spin_lock_bh(&rdev->bss_lock);
5684 cfg80211_bss_expire(rdev);
5686 cb->seq = rdev->bss_generation;
5688 list_for_each_entry(scan, &rdev->bss_list, list) {
5691 if (nl80211_send_bss(skb, cb,
5692 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5693 rdev, wdev, scan) < 0) {
5699 spin_unlock_bh(&rdev->bss_lock);
5703 nl80211_finish_wdev_dump(rdev);
5708 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5709 int flags, struct net_device *dev,
5710 struct survey_info *survey)
5713 struct nlattr *infoattr;
5715 hdr = nl80211hdr_put(msg, portid, seq, flags,
5716 NL80211_CMD_NEW_SURVEY_RESULTS);
5720 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5721 goto nla_put_failure;
5723 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5725 goto nla_put_failure;
5727 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5728 survey->channel->center_freq))
5729 goto nla_put_failure;
5731 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5732 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5733 goto nla_put_failure;
5734 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5735 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5736 goto nla_put_failure;
5737 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5738 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5739 survey->channel_time))
5740 goto nla_put_failure;
5741 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5742 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5743 survey->channel_time_busy))
5744 goto nla_put_failure;
5745 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5746 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5747 survey->channel_time_ext_busy))
5748 goto nla_put_failure;
5749 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5750 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5751 survey->channel_time_rx))
5752 goto nla_put_failure;
5753 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5754 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5755 survey->channel_time_tx))
5756 goto nla_put_failure;
5758 nla_nest_end(msg, infoattr);
5760 return genlmsg_end(msg, hdr);
5763 genlmsg_cancel(msg, hdr);
5767 static int nl80211_dump_survey(struct sk_buff *skb,
5768 struct netlink_callback *cb)
5770 struct survey_info survey;
5771 struct cfg80211_registered_device *dev;
5772 struct wireless_dev *wdev;
5773 int survey_idx = cb->args[2];
5776 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
5780 if (!wdev->netdev) {
5785 if (!dev->ops->dump_survey) {
5791 struct ieee80211_channel *chan;
5793 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
5799 /* Survey without a channel doesn't make sense */
5800 if (!survey.channel) {
5805 chan = ieee80211_get_channel(&dev->wiphy,
5806 survey.channel->center_freq);
5807 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5812 if (nl80211_send_survey(skb,
5813 NETLINK_CB(cb->skb).portid,
5814 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5815 wdev->netdev, &survey) < 0)
5821 cb->args[2] = survey_idx;
5824 nl80211_finish_wdev_dump(dev);
5828 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5830 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5831 NL80211_WPA_VERSION_2));
5834 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5837 struct net_device *dev = info->user_ptr[1];
5838 struct ieee80211_channel *chan;
5839 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5840 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5841 enum nl80211_auth_type auth_type;
5842 struct key_parse key;
5843 bool local_state_change;
5845 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5848 if (!info->attrs[NL80211_ATTR_MAC])
5851 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5854 if (!info->attrs[NL80211_ATTR_SSID])
5857 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5860 err = nl80211_parse_key(info, &key);
5865 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5867 if (!key.p.key || !key.p.key_len)
5869 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5870 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5871 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5872 key.p.key_len != WLAN_KEY_LEN_WEP104))
5884 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5885 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5894 if (!rdev->ops->auth)
5897 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5898 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5901 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5902 chan = ieee80211_get_channel(&rdev->wiphy,
5903 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5904 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5907 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5908 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5910 if (info->attrs[NL80211_ATTR_IE]) {
5911 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5912 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5915 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5916 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5919 if (auth_type == NL80211_AUTHTYPE_SAE &&
5920 !info->attrs[NL80211_ATTR_SAE_DATA])
5923 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5924 if (auth_type != NL80211_AUTHTYPE_SAE)
5926 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5927 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5928 /* need to include at least Auth Transaction and Status Code */
5929 if (sae_data_len < 4)
5933 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5936 * Since we no longer track auth state, ignore
5937 * requests to only change local state.
5939 if (local_state_change)
5942 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5943 ssid, ssid_len, ie, ie_len,
5944 key.p.key, key.p.key_len, key.idx,
5945 sae_data, sae_data_len);
5948 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5949 struct genl_info *info,
5950 struct cfg80211_crypto_settings *settings,
5953 memset(settings, 0, sizeof(*settings));
5955 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5957 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5959 proto = nla_get_u16(
5960 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5961 settings->control_port_ethertype = cpu_to_be16(proto);
5962 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5965 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5966 settings->control_port_no_encrypt = true;
5968 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5970 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5974 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5975 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5976 settings->n_ciphers_pairwise = len / sizeof(u32);
5978 if (len % sizeof(u32))
5981 if (settings->n_ciphers_pairwise > cipher_limit)
5984 memcpy(settings->ciphers_pairwise, data, len);
5986 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5987 if (!cfg80211_supported_cipher_suite(
5989 settings->ciphers_pairwise[i]))
5993 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5994 settings->cipher_group =
5995 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5996 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5997 settings->cipher_group))
6001 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6002 settings->wpa_versions =
6003 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6004 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6008 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6012 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6013 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6014 settings->n_akm_suites = len / sizeof(u32);
6016 if (len % sizeof(u32))
6019 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6022 memcpy(settings->akm_suites, data, len);
6028 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6031 struct net_device *dev = info->user_ptr[1];
6032 struct ieee80211_channel *chan;
6033 struct cfg80211_assoc_request req = {};
6034 const u8 *bssid, *ssid;
6035 int err, ssid_len = 0;
6037 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6040 if (!info->attrs[NL80211_ATTR_MAC] ||
6041 !info->attrs[NL80211_ATTR_SSID] ||
6042 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6045 if (!rdev->ops->assoc)
6048 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6049 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6052 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6054 chan = ieee80211_get_channel(&rdev->wiphy,
6055 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6056 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6059 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6060 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6062 if (info->attrs[NL80211_ATTR_IE]) {
6063 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6064 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6067 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6068 enum nl80211_mfp mfp =
6069 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6070 if (mfp == NL80211_MFP_REQUIRED)
6072 else if (mfp != NL80211_MFP_NO)
6076 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6077 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6079 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6080 req.flags |= ASSOC_REQ_DISABLE_HT;
6082 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6083 memcpy(&req.ht_capa_mask,
6084 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6085 sizeof(req.ht_capa_mask));
6087 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6088 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6090 memcpy(&req.ht_capa,
6091 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6092 sizeof(req.ht_capa));
6095 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6096 req.flags |= ASSOC_REQ_DISABLE_VHT;
6098 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6099 memcpy(&req.vht_capa_mask,
6100 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6101 sizeof(req.vht_capa_mask));
6103 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6104 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6106 memcpy(&req.vht_capa,
6107 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6108 sizeof(req.vht_capa));
6111 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6113 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6114 ssid, ssid_len, &req);
6119 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6121 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6122 struct net_device *dev = info->user_ptr[1];
6123 const u8 *ie = NULL, *bssid;
6126 bool local_state_change;
6128 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6131 if (!info->attrs[NL80211_ATTR_MAC])
6134 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6137 if (!rdev->ops->deauth)
6140 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6141 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6144 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6146 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6147 if (reason_code == 0) {
6148 /* Reason Code 0 is reserved */
6152 if (info->attrs[NL80211_ATTR_IE]) {
6153 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6154 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6157 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6159 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6160 local_state_change);
6163 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6165 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6166 struct net_device *dev = info->user_ptr[1];
6167 const u8 *ie = NULL, *bssid;
6170 bool local_state_change;
6172 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6175 if (!info->attrs[NL80211_ATTR_MAC])
6178 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6181 if (!rdev->ops->disassoc)
6184 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6185 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6188 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6190 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6191 if (reason_code == 0) {
6192 /* Reason Code 0 is reserved */
6196 if (info->attrs[NL80211_ATTR_IE]) {
6197 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6198 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6201 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6203 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6204 local_state_change);
6208 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6209 int mcast_rate[IEEE80211_NUM_BANDS],
6212 struct wiphy *wiphy = &rdev->wiphy;
6216 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6217 struct ieee80211_supported_band *sband;
6219 sband = wiphy->bands[band];
6223 for (i = 0; i < sband->n_bitrates; i++) {
6224 if (sband->bitrates[i].bitrate == rateval) {
6225 mcast_rate[band] = i + 1;
6235 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6238 struct net_device *dev = info->user_ptr[1];
6239 struct cfg80211_ibss_params ibss;
6240 struct wiphy *wiphy;
6241 struct cfg80211_cached_keys *connkeys = NULL;
6244 memset(&ibss, 0, sizeof(ibss));
6246 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6249 if (!info->attrs[NL80211_ATTR_SSID] ||
6250 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6253 ibss.beacon_interval = 100;
6255 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6256 ibss.beacon_interval =
6257 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6258 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6262 if (!rdev->ops->join_ibss)
6265 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6268 wiphy = &rdev->wiphy;
6270 if (info->attrs[NL80211_ATTR_MAC]) {
6271 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6273 if (!is_valid_ether_addr(ibss.bssid))
6276 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6277 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6279 if (info->attrs[NL80211_ATTR_IE]) {
6280 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6281 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6284 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6288 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
6291 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
6293 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
6294 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
6297 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6298 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6300 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6302 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6304 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6305 struct ieee80211_supported_band *sband =
6306 wiphy->bands[ibss.chandef.chan->band];
6308 err = ieee80211_get_ratemask(sband, rates, n_rates,
6314 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6315 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6316 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6319 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6322 connkeys = nl80211_parse_connkeys(rdev,
6323 info->attrs[NL80211_ATTR_KEYS],
6325 if (IS_ERR(connkeys))
6326 return PTR_ERR(connkeys);
6328 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6336 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6338 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6344 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6347 struct net_device *dev = info->user_ptr[1];
6349 if (!rdev->ops->leave_ibss)
6352 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6355 return cfg80211_leave_ibss(rdev, dev, false);
6358 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6361 struct net_device *dev = info->user_ptr[1];
6362 int mcast_rate[IEEE80211_NUM_BANDS];
6366 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6367 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6370 if (!rdev->ops->set_mcast_rate)
6373 memset(mcast_rate, 0, sizeof(mcast_rate));
6375 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6378 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6379 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6382 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6388 #ifdef CONFIG_NL80211_TESTMODE
6389 static struct genl_multicast_group nl80211_testmode_mcgrp = {
6393 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6398 if (!info->attrs[NL80211_ATTR_TESTDATA])
6402 if (rdev->ops->testmode_cmd) {
6403 rdev->testmode_info = info;
6404 err = rdev_testmode_cmd(rdev,
6405 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6406 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6407 rdev->testmode_info = NULL;
6413 static int nl80211_testmode_dump(struct sk_buff *skb,
6414 struct netlink_callback *cb)
6416 struct cfg80211_registered_device *rdev;
6424 * 0 is a valid index, but not valid for args[0],
6425 * so we need to offset by 1.
6427 phy_idx = cb->args[0] - 1;
6429 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6430 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6435 mutex_lock(&cfg80211_mutex);
6436 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6437 nl80211_fam.attrbuf);
6439 mutex_unlock(&cfg80211_mutex);
6440 return PTR_ERR(rdev);
6442 phy_idx = rdev->wiphy_idx;
6444 mutex_unlock(&cfg80211_mutex);
6446 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6448 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6452 data = nla_data((void *)cb->args[1]);
6453 data_len = nla_len((void *)cb->args[1]);
6456 mutex_lock(&cfg80211_mutex);
6457 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6459 mutex_unlock(&cfg80211_mutex);
6462 cfg80211_lock_rdev(rdev);
6463 mutex_unlock(&cfg80211_mutex);
6465 if (!rdev->ops->testmode_dump) {
6471 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6472 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6473 NL80211_CMD_TESTMODE);
6474 struct nlattr *tmdata;
6476 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6477 genlmsg_cancel(skb, hdr);
6481 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6483 genlmsg_cancel(skb, hdr);
6486 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6487 nla_nest_end(skb, tmdata);
6489 if (err == -ENOBUFS || err == -ENOENT) {
6490 genlmsg_cancel(skb, hdr);
6493 genlmsg_cancel(skb, hdr);
6497 genlmsg_end(skb, hdr);
6502 cb->args[0] = phy_idx + 1;
6504 cfg80211_unlock_rdev(rdev);
6508 static struct sk_buff *
6509 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
6510 int approxlen, u32 portid, u32 seq, gfp_t gfp)
6512 struct sk_buff *skb;
6514 struct nlattr *data;
6516 skb = nlmsg_new(approxlen + 100, gfp);
6520 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
6526 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6527 goto nla_put_failure;
6528 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6530 ((void **)skb->cb)[0] = rdev;
6531 ((void **)skb->cb)[1] = hdr;
6532 ((void **)skb->cb)[2] = data;
6541 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6544 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6546 if (WARN_ON(!rdev->testmode_info))
6549 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
6550 rdev->testmode_info->snd_portid,
6551 rdev->testmode_info->snd_seq,
6554 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6556 int cfg80211_testmode_reply(struct sk_buff *skb)
6558 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6559 void *hdr = ((void **)skb->cb)[1];
6560 struct nlattr *data = ((void **)skb->cb)[2];
6562 if (WARN_ON(!rdev->testmode_info)) {
6567 nla_nest_end(skb, data);
6568 genlmsg_end(skb, hdr);
6569 return genlmsg_reply(skb, rdev->testmode_info);
6571 EXPORT_SYMBOL(cfg80211_testmode_reply);
6573 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6574 int approxlen, gfp_t gfp)
6576 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6578 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6580 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6582 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6584 void *hdr = ((void **)skb->cb)[1];
6585 struct nlattr *data = ((void **)skb->cb)[2];
6587 nla_nest_end(skb, data);
6588 genlmsg_end(skb, hdr);
6589 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6591 EXPORT_SYMBOL(cfg80211_testmode_event);
6594 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6597 struct net_device *dev = info->user_ptr[1];
6598 struct cfg80211_connect_params connect;
6599 struct wiphy *wiphy;
6600 struct cfg80211_cached_keys *connkeys = NULL;
6603 memset(&connect, 0, sizeof(connect));
6605 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6608 if (!info->attrs[NL80211_ATTR_SSID] ||
6609 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6612 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6614 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6615 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6616 NL80211_CMD_CONNECT))
6619 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6621 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6623 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6624 NL80211_MAX_NR_CIPHER_SUITES);
6628 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6629 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6632 wiphy = &rdev->wiphy;
6634 connect.bg_scan_period = -1;
6635 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6636 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6637 connect.bg_scan_period =
6638 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6641 if (info->attrs[NL80211_ATTR_MAC])
6642 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6643 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6644 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6646 if (info->attrs[NL80211_ATTR_IE]) {
6647 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6648 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6651 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6652 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6653 if (connect.mfp != NL80211_MFP_REQUIRED &&
6654 connect.mfp != NL80211_MFP_NO)
6657 connect.mfp = NL80211_MFP_NO;
6660 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6662 ieee80211_get_channel(wiphy,
6663 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6664 if (!connect.channel ||
6665 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6669 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6670 connkeys = nl80211_parse_connkeys(rdev,
6671 info->attrs[NL80211_ATTR_KEYS], NULL);
6672 if (IS_ERR(connkeys))
6673 return PTR_ERR(connkeys);
6676 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6677 connect.flags |= ASSOC_REQ_DISABLE_HT;
6679 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6680 memcpy(&connect.ht_capa_mask,
6681 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6682 sizeof(connect.ht_capa_mask));
6684 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6685 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6689 memcpy(&connect.ht_capa,
6690 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6691 sizeof(connect.ht_capa));
6694 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6695 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6697 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6698 memcpy(&connect.vht_capa_mask,
6699 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6700 sizeof(connect.vht_capa_mask));
6702 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6703 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6707 memcpy(&connect.vht_capa,
6708 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6709 sizeof(connect.vht_capa));
6712 err = cfg80211_connect(rdev, dev, &connect, connkeys);
6718 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6720 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6721 struct net_device *dev = info->user_ptr[1];
6724 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6725 reason = WLAN_REASON_DEAUTH_LEAVING;
6727 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6732 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6733 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6736 return cfg80211_disconnect(rdev, dev, reason, true);
6739 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6746 if (!info->attrs[NL80211_ATTR_PID])
6749 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6751 net = get_net_ns_by_pid(pid);
6753 return PTR_ERR(net);
6757 /* check if anything to do */
6758 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6759 err = cfg80211_switch_netns(rdev, net);
6765 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6768 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6769 struct cfg80211_pmksa *pmksa) = NULL;
6770 struct net_device *dev = info->user_ptr[1];
6771 struct cfg80211_pmksa pmksa;
6773 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6775 if (!info->attrs[NL80211_ATTR_MAC])
6778 if (!info->attrs[NL80211_ATTR_PMKID])
6781 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6782 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6784 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6785 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6788 switch (info->genlhdr->cmd) {
6789 case NL80211_CMD_SET_PMKSA:
6790 rdev_ops = rdev->ops->set_pmksa;
6792 case NL80211_CMD_DEL_PMKSA:
6793 rdev_ops = rdev->ops->del_pmksa;
6803 return rdev_ops(&rdev->wiphy, dev, &pmksa);
6806 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6809 struct net_device *dev = info->user_ptr[1];
6811 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6812 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6815 if (!rdev->ops->flush_pmksa)
6818 return rdev_flush_pmksa(rdev, dev);
6821 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6824 struct net_device *dev = info->user_ptr[1];
6825 u8 action_code, dialog_token;
6829 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6830 !rdev->ops->tdls_mgmt)
6833 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6834 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6835 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6836 !info->attrs[NL80211_ATTR_IE] ||
6837 !info->attrs[NL80211_ATTR_MAC])
6840 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6841 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6842 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6843 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6845 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6846 dialog_token, status_code,
6847 nla_data(info->attrs[NL80211_ATTR_IE]),
6848 nla_len(info->attrs[NL80211_ATTR_IE]));
6851 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6853 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6854 struct net_device *dev = info->user_ptr[1];
6855 enum nl80211_tdls_operation operation;
6858 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6859 !rdev->ops->tdls_oper)
6862 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6863 !info->attrs[NL80211_ATTR_MAC])
6866 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6867 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6869 return rdev_tdls_oper(rdev, dev, peer, operation);
6872 static int nl80211_remain_on_channel(struct sk_buff *skb,
6873 struct genl_info *info)
6875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6876 struct wireless_dev *wdev = info->user_ptr[1];
6877 struct cfg80211_chan_def chandef;
6878 struct sk_buff *msg;
6884 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6885 !info->attrs[NL80211_ATTR_DURATION])
6888 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6890 if (!rdev->ops->remain_on_channel ||
6891 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6895 * We should be on that channel for at least a minimum amount of
6896 * time (10ms) but no longer than the driver supports.
6898 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6899 duration > rdev->wiphy.max_remain_on_channel_duration)
6902 err = nl80211_parse_chandef(rdev, info, &chandef);
6906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6910 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6911 NL80211_CMD_REMAIN_ON_CHANNEL);
6918 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6924 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6925 goto nla_put_failure;
6927 genlmsg_end(msg, hdr);
6929 return genlmsg_reply(msg, info);
6938 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6939 struct genl_info *info)
6941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6942 struct wireless_dev *wdev = info->user_ptr[1];
6945 if (!info->attrs[NL80211_ATTR_COOKIE])
6948 if (!rdev->ops->cancel_remain_on_channel)
6951 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6953 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6956 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6957 u8 *rates, u8 rates_len)
6962 for (i = 0; i < rates_len; i++) {
6963 int rate = (rates[i] & 0x7f) * 5;
6965 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6966 struct ieee80211_rate *srate =
6967 &sband->bitrates[ridx];
6968 if (rate == srate->bitrate) {
6973 if (ridx == sband->n_bitrates)
6974 return 0; /* rate not found */
6980 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6981 u8 *rates, u8 rates_len,
6982 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6986 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6988 for (i = 0; i < rates_len; i++) {
6991 ridx = rates[i] / 8;
6992 rbit = BIT(rates[i] % 8);
6994 /* check validity */
6995 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6998 /* check availability */
6999 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7008 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7009 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7010 .len = NL80211_MAX_SUPP_RATES },
7011 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7012 .len = NL80211_MAX_SUPP_HT_RATES },
7015 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7016 struct genl_info *info)
7018 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7020 struct cfg80211_bitrate_mask mask;
7022 struct net_device *dev = info->user_ptr[1];
7023 struct nlattr *tx_rates;
7024 struct ieee80211_supported_band *sband;
7026 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7029 if (!rdev->ops->set_bitrate_mask)
7032 memset(&mask, 0, sizeof(mask));
7033 /* Default to all rates enabled */
7034 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7035 sband = rdev->wiphy.bands[i];
7036 mask.control[i].legacy =
7037 sband ? (1 << sband->n_bitrates) - 1 : 0;
7039 memcpy(mask.control[i].mcs,
7040 sband->ht_cap.mcs.rx_mask,
7041 sizeof(mask.control[i].mcs));
7043 memset(mask.control[i].mcs, 0,
7044 sizeof(mask.control[i].mcs));
7048 * The nested attribute uses enum nl80211_band as the index. This maps
7049 * directly to the enum ieee80211_band values used in cfg80211.
7051 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7052 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7054 enum ieee80211_band band = nla_type(tx_rates);
7055 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7057 sband = rdev->wiphy.bands[band];
7060 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7061 nla_len(tx_rates), nl80211_txattr_policy);
7062 if (tb[NL80211_TXRATE_LEGACY]) {
7063 mask.control[band].legacy = rateset_to_mask(
7065 nla_data(tb[NL80211_TXRATE_LEGACY]),
7066 nla_len(tb[NL80211_TXRATE_LEGACY]));
7067 if ((mask.control[band].legacy == 0) &&
7068 nla_len(tb[NL80211_TXRATE_LEGACY]))
7071 if (tb[NL80211_TXRATE_MCS]) {
7072 if (!ht_rateset_to_mask(
7074 nla_data(tb[NL80211_TXRATE_MCS]),
7075 nla_len(tb[NL80211_TXRATE_MCS]),
7076 mask.control[band].mcs))
7080 if (mask.control[band].legacy == 0) {
7081 /* don't allow empty legacy rates if HT
7082 * is not even supported. */
7083 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7086 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7087 if (mask.control[band].mcs[i])
7090 /* legacy and mcs rates may not be both empty */
7091 if (i == IEEE80211_HT_MCS_MASK_LEN)
7096 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7099 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7101 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7102 struct wireless_dev *wdev = info->user_ptr[1];
7103 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7105 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7108 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7109 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7111 switch (wdev->iftype) {
7112 case NL80211_IFTYPE_STATION:
7113 case NL80211_IFTYPE_ADHOC:
7114 case NL80211_IFTYPE_P2P_CLIENT:
7115 case NL80211_IFTYPE_AP:
7116 case NL80211_IFTYPE_AP_VLAN:
7117 case NL80211_IFTYPE_MESH_POINT:
7118 case NL80211_IFTYPE_P2P_GO:
7119 case NL80211_IFTYPE_P2P_DEVICE:
7125 /* not much point in registering if we can't reply */
7126 if (!rdev->ops->mgmt_tx)
7129 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7130 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7131 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7134 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7136 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7137 struct wireless_dev *wdev = info->user_ptr[1];
7138 struct cfg80211_chan_def chandef;
7142 struct sk_buff *msg = NULL;
7143 unsigned int wait = 0;
7144 bool offchan, no_cck, dont_wait_for_ack;
7146 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
7148 if (!info->attrs[NL80211_ATTR_FRAME])
7151 if (!rdev->ops->mgmt_tx)
7154 switch (wdev->iftype) {
7155 case NL80211_IFTYPE_STATION:
7156 case NL80211_IFTYPE_ADHOC:
7157 case NL80211_IFTYPE_P2P_CLIENT:
7158 case NL80211_IFTYPE_AP:
7159 case NL80211_IFTYPE_AP_VLAN:
7160 case NL80211_IFTYPE_MESH_POINT:
7161 case NL80211_IFTYPE_P2P_GO:
7162 case NL80211_IFTYPE_P2P_DEVICE:
7168 if (info->attrs[NL80211_ATTR_DURATION]) {
7169 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7171 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7174 * We should wait on the channel for at least a minimum amount
7175 * of time (10ms) but no longer than the driver supports.
7177 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7178 wait > rdev->wiphy.max_remain_on_channel_duration)
7183 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7185 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7188 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7190 err = nl80211_parse_chandef(rdev, info, &chandef);
7194 if (!dont_wait_for_ack) {
7195 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7199 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7208 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
7209 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7210 nla_len(info->attrs[NL80211_ATTR_FRAME]),
7211 no_cck, dont_wait_for_ack, &cookie);
7216 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7217 goto nla_put_failure;
7219 genlmsg_end(msg, hdr);
7220 return genlmsg_reply(msg, info);
7232 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7235 struct wireless_dev *wdev = info->user_ptr[1];
7238 if (!info->attrs[NL80211_ATTR_COOKIE])
7241 if (!rdev->ops->mgmt_tx_cancel_wait)
7244 switch (wdev->iftype) {
7245 case NL80211_IFTYPE_STATION:
7246 case NL80211_IFTYPE_ADHOC:
7247 case NL80211_IFTYPE_P2P_CLIENT:
7248 case NL80211_IFTYPE_AP:
7249 case NL80211_IFTYPE_AP_VLAN:
7250 case NL80211_IFTYPE_P2P_GO:
7251 case NL80211_IFTYPE_P2P_DEVICE:
7257 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7259 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7262 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7265 struct wireless_dev *wdev;
7266 struct net_device *dev = info->user_ptr[1];
7271 if (!info->attrs[NL80211_ATTR_PS_STATE])
7274 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7276 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7279 wdev = dev->ieee80211_ptr;
7281 if (!rdev->ops->set_power_mgmt)
7284 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7286 if (state == wdev->ps)
7289 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7295 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7297 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7298 enum nl80211_ps_state ps_state;
7299 struct wireless_dev *wdev;
7300 struct net_device *dev = info->user_ptr[1];
7301 struct sk_buff *msg;
7305 wdev = dev->ieee80211_ptr;
7307 if (!rdev->ops->set_power_mgmt)
7310 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7314 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7315 NL80211_CMD_GET_POWER_SAVE);
7322 ps_state = NL80211_PS_ENABLED;
7324 ps_state = NL80211_PS_DISABLED;
7326 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7327 goto nla_put_failure;
7329 genlmsg_end(msg, hdr);
7330 return genlmsg_reply(msg, info);
7339 static struct nla_policy
7340 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7341 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7342 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7343 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
7344 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7345 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7346 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
7349 static int nl80211_set_cqm_txe(struct genl_info *info,
7350 u32 rate, u32 pkts, u32 intvl)
7352 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7353 struct wireless_dev *wdev;
7354 struct net_device *dev = info->user_ptr[1];
7356 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
7359 wdev = dev->ieee80211_ptr;
7361 if (!rdev->ops->set_cqm_txe_config)
7364 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7365 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7368 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
7371 static int nl80211_set_cqm_rssi(struct genl_info *info,
7372 s32 threshold, u32 hysteresis)
7374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7375 struct wireless_dev *wdev;
7376 struct net_device *dev = info->user_ptr[1];
7381 wdev = dev->ieee80211_ptr;
7383 if (!rdev->ops->set_cqm_rssi_config)
7386 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7387 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7390 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
7393 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7395 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7399 cqm = info->attrs[NL80211_ATTR_CQM];
7405 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7406 nl80211_attr_cqm_policy);
7410 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7411 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7414 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7415 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7416 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
7417 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7418 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7419 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7420 u32 rate, pkts, intvl;
7421 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7422 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7423 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7424 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
7432 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7435 struct net_device *dev = info->user_ptr[1];
7436 struct mesh_config cfg;
7437 struct mesh_setup setup;
7440 /* start with default */
7441 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7442 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7444 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7445 /* and parse parameters if given */
7446 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7451 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7452 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7455 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7456 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7458 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7459 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7460 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7463 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7464 setup.beacon_interval =
7465 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7466 if (setup.beacon_interval < 10 ||
7467 setup.beacon_interval > 10000)
7471 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7473 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7474 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7478 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7479 /* parse additional setup parameters if given */
7480 err = nl80211_parse_mesh_setup(info, &setup);
7486 cfg.auto_open_plinks = false;
7488 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7489 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7493 /* cfg80211_join_mesh() will sort it out */
7494 setup.chandef.chan = NULL;
7497 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7500 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7502 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7503 struct net_device *dev = info->user_ptr[1];
7505 return cfg80211_leave_mesh(rdev, dev);
7509 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7510 struct cfg80211_registered_device *rdev)
7512 struct nlattr *nl_pats, *nl_pat;
7515 if (!rdev->wowlan->n_patterns)
7518 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7522 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7523 nl_pat = nla_nest_start(msg, i + 1);
7526 pat_len = rdev->wowlan->patterns[i].pattern_len;
7527 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7528 DIV_ROUND_UP(pat_len, 8),
7529 rdev->wowlan->patterns[i].mask) ||
7530 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7531 pat_len, rdev->wowlan->patterns[i].pattern) ||
7532 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7533 rdev->wowlan->patterns[i].pkt_offset))
7535 nla_nest_end(msg, nl_pat);
7537 nla_nest_end(msg, nl_pats);
7542 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7543 struct cfg80211_wowlan_tcp *tcp)
7545 struct nlattr *nl_tcp;
7550 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7554 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7555 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7556 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7557 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7558 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7559 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7560 tcp->payload_len, tcp->payload) ||
7561 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7562 tcp->data_interval) ||
7563 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7564 tcp->wake_len, tcp->wake_data) ||
7565 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7566 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7569 if (tcp->payload_seq.len &&
7570 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7571 sizeof(tcp->payload_seq), &tcp->payload_seq))
7574 if (tcp->payload_tok.len &&
7575 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7576 sizeof(tcp->payload_tok) + tcp->tokens_size,
7583 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7586 struct sk_buff *msg;
7588 u32 size = NLMSG_DEFAULT_SIZE;
7590 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7591 !rdev->wiphy.wowlan.tcp)
7594 if (rdev->wowlan && rdev->wowlan->tcp) {
7595 /* adjust size to have room for all the data */
7596 size += rdev->wowlan->tcp->tokens_size +
7597 rdev->wowlan->tcp->payload_len +
7598 rdev->wowlan->tcp->wake_len +
7599 rdev->wowlan->tcp->wake_len / 8;
7602 msg = nlmsg_new(size, GFP_KERNEL);
7606 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7607 NL80211_CMD_GET_WOWLAN);
7609 goto nla_put_failure;
7612 struct nlattr *nl_wowlan;
7614 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7616 goto nla_put_failure;
7618 if ((rdev->wowlan->any &&
7619 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7620 (rdev->wowlan->disconnect &&
7621 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7622 (rdev->wowlan->magic_pkt &&
7623 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7624 (rdev->wowlan->gtk_rekey_failure &&
7625 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7626 (rdev->wowlan->eap_identity_req &&
7627 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7628 (rdev->wowlan->four_way_handshake &&
7629 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7630 (rdev->wowlan->rfkill_release &&
7631 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7632 goto nla_put_failure;
7634 if (nl80211_send_wowlan_patterns(msg, rdev))
7635 goto nla_put_failure;
7637 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7638 goto nla_put_failure;
7640 nla_nest_end(msg, nl_wowlan);
7643 genlmsg_end(msg, hdr);
7644 return genlmsg_reply(msg, info);
7651 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7652 struct nlattr *attr,
7653 struct cfg80211_wowlan *trig)
7655 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7656 struct cfg80211_wowlan_tcp *cfg;
7657 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7658 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7660 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7663 if (!rdev->wiphy.wowlan.tcp)
7666 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7667 nla_data(attr), nla_len(attr),
7668 nl80211_wowlan_tcp_policy);
7672 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7673 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7674 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7675 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7676 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7677 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7678 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7679 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7682 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7683 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7686 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7687 rdev->wiphy.wowlan.tcp->data_interval_max ||
7688 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
7691 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7692 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7695 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7696 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7699 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7700 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7702 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7703 tokens_size = tokln - sizeof(*tok);
7705 if (!tok->len || tokens_size % tok->len)
7707 if (!rdev->wiphy.wowlan.tcp->tok)
7709 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7711 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7713 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7715 if (tok->offset + tok->len > data_size)
7719 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7720 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7721 if (!rdev->wiphy.wowlan.tcp->seq)
7723 if (seq->len == 0 || seq->len > 4)
7725 if (seq->len + seq->offset > data_size)
7729 size = sizeof(*cfg);
7731 size += wake_size + wake_mask_size;
7732 size += tokens_size;
7734 cfg = kzalloc(size, GFP_KERNEL);
7737 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7738 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7739 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7741 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7742 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7746 /* allocate a socket and port for it and use it */
7747 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7748 IPPROTO_TCP, &cfg->sock, 1);
7753 if (inet_csk_get_port(cfg->sock->sk, port)) {
7754 sock_release(cfg->sock);
7758 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7764 cfg->src_port = port;
7767 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7768 cfg->payload_len = data_size;
7769 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7770 memcpy((void *)cfg->payload,
7771 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7774 cfg->payload_seq = *seq;
7775 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7776 cfg->wake_len = wake_size;
7777 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7778 memcpy((void *)cfg->wake_data,
7779 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7781 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7782 data_size + wake_size;
7783 memcpy((void *)cfg->wake_mask,
7784 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7787 cfg->tokens_size = tokens_size;
7788 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7796 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7798 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7799 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
7800 struct cfg80211_wowlan new_triggers = {};
7801 struct cfg80211_wowlan *ntrig;
7802 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7804 bool prev_enabled = rdev->wowlan;
7806 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7807 !rdev->wiphy.wowlan.tcp)
7810 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7811 cfg80211_rdev_free_wowlan(rdev);
7812 rdev->wowlan = NULL;
7816 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7817 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7818 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7819 nl80211_wowlan_policy);
7823 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7824 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7826 new_triggers.any = true;
7829 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7830 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7832 new_triggers.disconnect = true;
7835 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7836 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7838 new_triggers.magic_pkt = true;
7841 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7844 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7845 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7847 new_triggers.gtk_rekey_failure = true;
7850 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7851 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7853 new_triggers.eap_identity_req = true;
7856 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7857 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7859 new_triggers.four_way_handshake = true;
7862 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7863 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7865 new_triggers.rfkill_release = true;
7868 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7871 int rem, pat_len, mask_len, pkt_offset;
7872 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7874 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7877 if (n_patterns > wowlan->n_patterns)
7880 new_triggers.patterns = kcalloc(n_patterns,
7881 sizeof(new_triggers.patterns[0]),
7883 if (!new_triggers.patterns)
7886 new_triggers.n_patterns = n_patterns;
7889 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7891 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7892 nla_data(pat), nla_len(pat), NULL);
7894 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7895 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7897 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7898 mask_len = DIV_ROUND_UP(pat_len, 8);
7899 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7902 if (pat_len > wowlan->pattern_max_len ||
7903 pat_len < wowlan->pattern_min_len)
7906 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7909 pkt_offset = nla_get_u32(
7910 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7911 if (pkt_offset > wowlan->max_pkt_offset)
7913 new_triggers.patterns[i].pkt_offset = pkt_offset;
7915 new_triggers.patterns[i].mask =
7916 kmalloc(mask_len + pat_len, GFP_KERNEL);
7917 if (!new_triggers.patterns[i].mask) {
7921 new_triggers.patterns[i].pattern =
7922 new_triggers.patterns[i].mask + mask_len;
7923 memcpy(new_triggers.patterns[i].mask,
7924 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7926 new_triggers.patterns[i].pattern_len = pat_len;
7927 memcpy(new_triggers.patterns[i].pattern,
7928 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7934 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7935 err = nl80211_parse_wowlan_tcp(
7936 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7942 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7947 cfg80211_rdev_free_wowlan(rdev);
7948 rdev->wowlan = ntrig;
7951 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
7952 rdev_set_wakeup(rdev, rdev->wowlan);
7956 for (i = 0; i < new_triggers.n_patterns; i++)
7957 kfree(new_triggers.patterns[i].mask);
7958 kfree(new_triggers.patterns);
7959 if (new_triggers.tcp && new_triggers.tcp->sock)
7960 sock_release(new_triggers.tcp->sock);
7961 kfree(new_triggers.tcp);
7966 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7969 struct net_device *dev = info->user_ptr[1];
7970 struct wireless_dev *wdev = dev->ieee80211_ptr;
7971 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7972 struct cfg80211_gtk_rekey_data rekey_data;
7975 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7978 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7979 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7980 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7981 nl80211_rekey_policy);
7985 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7987 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7989 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7992 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7994 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7996 memcpy(rekey_data.replay_ctr,
7997 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7998 NL80211_REPLAY_CTR_LEN);
8001 if (!wdev->current_bss) {
8006 if (!rdev->ops->set_rekey_data) {
8011 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8017 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8018 struct genl_info *info)
8020 struct net_device *dev = info->user_ptr[1];
8021 struct wireless_dev *wdev = dev->ieee80211_ptr;
8023 if (wdev->iftype != NL80211_IFTYPE_AP &&
8024 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8027 if (wdev->ap_unexpected_nlportid)
8030 wdev->ap_unexpected_nlportid = info->snd_portid;
8034 static int nl80211_probe_client(struct sk_buff *skb,
8035 struct genl_info *info)
8037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8038 struct net_device *dev = info->user_ptr[1];
8039 struct wireless_dev *wdev = dev->ieee80211_ptr;
8040 struct sk_buff *msg;
8046 if (wdev->iftype != NL80211_IFTYPE_AP &&
8047 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8050 if (!info->attrs[NL80211_ATTR_MAC])
8053 if (!rdev->ops->probe_client)
8056 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8060 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8061 NL80211_CMD_PROBE_CLIENT);
8068 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8070 err = rdev_probe_client(rdev, dev, addr, &cookie);
8074 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8075 goto nla_put_failure;
8077 genlmsg_end(msg, hdr);
8079 return genlmsg_reply(msg, info);
8088 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8091 struct cfg80211_beacon_registration *reg, *nreg;
8094 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8097 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8101 /* First, check if already registered. */
8102 spin_lock_bh(&rdev->beacon_registrations_lock);
8103 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8104 if (reg->nlportid == info->snd_portid) {
8109 /* Add it to the list */
8110 nreg->nlportid = info->snd_portid;
8111 list_add(&nreg->list, &rdev->beacon_registrations);
8113 spin_unlock_bh(&rdev->beacon_registrations_lock);
8117 spin_unlock_bh(&rdev->beacon_registrations_lock);
8122 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8124 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8125 struct wireless_dev *wdev = info->user_ptr[1];
8128 if (!rdev->ops->start_p2p_device)
8131 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8134 if (wdev->p2p_started)
8137 mutex_lock(&rdev->devlist_mtx);
8138 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8139 mutex_unlock(&rdev->devlist_mtx);
8143 err = rdev_start_p2p_device(rdev, wdev);
8147 wdev->p2p_started = true;
8148 mutex_lock(&rdev->devlist_mtx);
8150 mutex_unlock(&rdev->devlist_mtx);
8155 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8158 struct wireless_dev *wdev = info->user_ptr[1];
8160 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8163 if (!rdev->ops->stop_p2p_device)
8166 mutex_lock(&rdev->devlist_mtx);
8167 mutex_lock(&rdev->sched_scan_mtx);
8168 cfg80211_stop_p2p_device(rdev, wdev);
8169 mutex_unlock(&rdev->sched_scan_mtx);
8170 mutex_unlock(&rdev->devlist_mtx);
8175 static int nl80211_get_protocol_features(struct sk_buff *skb,
8176 struct genl_info *info)
8179 struct sk_buff *msg;
8181 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8185 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8186 NL80211_CMD_GET_PROTOCOL_FEATURES);
8188 goto nla_put_failure;
8190 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8191 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8192 goto nla_put_failure;
8194 genlmsg_end(msg, hdr);
8195 return genlmsg_reply(msg, info);
8202 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8204 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8205 struct cfg80211_update_ft_ies_params ft_params;
8206 struct net_device *dev = info->user_ptr[1];
8208 if (!rdev->ops->update_ft_ies)
8211 if (!info->attrs[NL80211_ATTR_MDID] ||
8212 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8215 memset(&ft_params, 0, sizeof(ft_params));
8216 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8217 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8218 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8220 return rdev_update_ft_ies(rdev, dev, &ft_params);
8223 static int nl80211_crit_protocol_start(struct sk_buff *skb,
8224 struct genl_info *info)
8226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8227 struct wireless_dev *wdev = info->user_ptr[1];
8228 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8232 if (!rdev->ops->crit_proto_start)
8235 if (WARN_ON(!rdev->ops->crit_proto_stop))
8238 if (rdev->crit_proto_nlportid)
8241 /* determine protocol if provided */
8242 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8243 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8245 if (proto >= NUM_NL80211_CRIT_PROTO)
8248 /* timeout must be provided */
8249 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8253 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8255 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8258 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8260 rdev->crit_proto_nlportid = info->snd_portid;
8265 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8266 struct genl_info *info)
8268 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8269 struct wireless_dev *wdev = info->user_ptr[1];
8271 if (!rdev->ops->crit_proto_stop)
8274 if (rdev->crit_proto_nlportid) {
8275 rdev->crit_proto_nlportid = 0;
8276 rdev_crit_proto_stop(rdev, wdev);
8281 #define NL80211_FLAG_NEED_WIPHY 0x01
8282 #define NL80211_FLAG_NEED_NETDEV 0x02
8283 #define NL80211_FLAG_NEED_RTNL 0x04
8284 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8285 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8286 NL80211_FLAG_CHECK_NETDEV_UP)
8287 #define NL80211_FLAG_NEED_WDEV 0x10
8288 /* If a netdev is associated, it must be UP, P2P must be started */
8289 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8290 NL80211_FLAG_CHECK_NETDEV_UP)
8292 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8293 struct genl_info *info)
8295 struct cfg80211_registered_device *rdev;
8296 struct wireless_dev *wdev;
8297 struct net_device *dev;
8298 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8303 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
8304 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
8308 return PTR_ERR(rdev);
8310 info->user_ptr[0] = rdev;
8311 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8312 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8313 mutex_lock(&cfg80211_mutex);
8314 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8317 mutex_unlock(&cfg80211_mutex);
8320 return PTR_ERR(wdev);
8324 rdev = wiphy_to_dev(wdev->wiphy);
8326 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8328 mutex_unlock(&cfg80211_mutex);
8334 info->user_ptr[1] = dev;
8336 info->user_ptr[1] = wdev;
8340 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8341 !netif_running(dev)) {
8342 mutex_unlock(&cfg80211_mutex);
8349 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8350 if (!wdev->p2p_started) {
8351 mutex_unlock(&cfg80211_mutex);
8358 cfg80211_lock_rdev(rdev);
8360 mutex_unlock(&cfg80211_mutex);
8362 info->user_ptr[0] = rdev;
8368 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8369 struct genl_info *info)
8371 if (info->user_ptr[0])
8372 cfg80211_unlock_rdev(info->user_ptr[0]);
8373 if (info->user_ptr[1]) {
8374 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8375 struct wireless_dev *wdev = info->user_ptr[1];
8378 dev_put(wdev->netdev);
8380 dev_put(info->user_ptr[1]);
8383 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8387 static struct genl_ops nl80211_ops[] = {
8389 .cmd = NL80211_CMD_GET_WIPHY,
8390 .doit = nl80211_get_wiphy,
8391 .dumpit = nl80211_dump_wiphy,
8392 .policy = nl80211_policy,
8393 /* can be retrieved by unprivileged users */
8394 .internal_flags = NL80211_FLAG_NEED_WIPHY,
8397 .cmd = NL80211_CMD_SET_WIPHY,
8398 .doit = nl80211_set_wiphy,
8399 .policy = nl80211_policy,
8400 .flags = GENL_ADMIN_PERM,
8401 .internal_flags = NL80211_FLAG_NEED_RTNL,
8404 .cmd = NL80211_CMD_GET_INTERFACE,
8405 .doit = nl80211_get_interface,
8406 .dumpit = nl80211_dump_interface,
8407 .policy = nl80211_policy,
8408 /* can be retrieved by unprivileged users */
8409 .internal_flags = NL80211_FLAG_NEED_WDEV,
8412 .cmd = NL80211_CMD_SET_INTERFACE,
8413 .doit = nl80211_set_interface,
8414 .policy = nl80211_policy,
8415 .flags = GENL_ADMIN_PERM,
8416 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8417 NL80211_FLAG_NEED_RTNL,
8420 .cmd = NL80211_CMD_NEW_INTERFACE,
8421 .doit = nl80211_new_interface,
8422 .policy = nl80211_policy,
8423 .flags = GENL_ADMIN_PERM,
8424 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8425 NL80211_FLAG_NEED_RTNL,
8428 .cmd = NL80211_CMD_DEL_INTERFACE,
8429 .doit = nl80211_del_interface,
8430 .policy = nl80211_policy,
8431 .flags = GENL_ADMIN_PERM,
8432 .internal_flags = NL80211_FLAG_NEED_WDEV |
8433 NL80211_FLAG_NEED_RTNL,
8436 .cmd = NL80211_CMD_GET_KEY,
8437 .doit = nl80211_get_key,
8438 .policy = nl80211_policy,
8439 .flags = GENL_ADMIN_PERM,
8440 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8441 NL80211_FLAG_NEED_RTNL,
8444 .cmd = NL80211_CMD_SET_KEY,
8445 .doit = nl80211_set_key,
8446 .policy = nl80211_policy,
8447 .flags = GENL_ADMIN_PERM,
8448 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8449 NL80211_FLAG_NEED_RTNL,
8452 .cmd = NL80211_CMD_NEW_KEY,
8453 .doit = nl80211_new_key,
8454 .policy = nl80211_policy,
8455 .flags = GENL_ADMIN_PERM,
8456 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8457 NL80211_FLAG_NEED_RTNL,
8460 .cmd = NL80211_CMD_DEL_KEY,
8461 .doit = nl80211_del_key,
8462 .policy = nl80211_policy,
8463 .flags = GENL_ADMIN_PERM,
8464 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8465 NL80211_FLAG_NEED_RTNL,
8468 .cmd = NL80211_CMD_SET_BEACON,
8469 .policy = nl80211_policy,
8470 .flags = GENL_ADMIN_PERM,
8471 .doit = nl80211_set_beacon,
8472 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8473 NL80211_FLAG_NEED_RTNL,
8476 .cmd = NL80211_CMD_START_AP,
8477 .policy = nl80211_policy,
8478 .flags = GENL_ADMIN_PERM,
8479 .doit = nl80211_start_ap,
8480 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8481 NL80211_FLAG_NEED_RTNL,
8484 .cmd = NL80211_CMD_STOP_AP,
8485 .policy = nl80211_policy,
8486 .flags = GENL_ADMIN_PERM,
8487 .doit = nl80211_stop_ap,
8488 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8489 NL80211_FLAG_NEED_RTNL,
8492 .cmd = NL80211_CMD_GET_STATION,
8493 .doit = nl80211_get_station,
8494 .dumpit = nl80211_dump_station,
8495 .policy = nl80211_policy,
8496 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8497 NL80211_FLAG_NEED_RTNL,
8500 .cmd = NL80211_CMD_SET_STATION,
8501 .doit = nl80211_set_station,
8502 .policy = nl80211_policy,
8503 .flags = GENL_ADMIN_PERM,
8504 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8505 NL80211_FLAG_NEED_RTNL,
8508 .cmd = NL80211_CMD_NEW_STATION,
8509 .doit = nl80211_new_station,
8510 .policy = nl80211_policy,
8511 .flags = GENL_ADMIN_PERM,
8512 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8513 NL80211_FLAG_NEED_RTNL,
8516 .cmd = NL80211_CMD_DEL_STATION,
8517 .doit = nl80211_del_station,
8518 .policy = nl80211_policy,
8519 .flags = GENL_ADMIN_PERM,
8520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8521 NL80211_FLAG_NEED_RTNL,
8524 .cmd = NL80211_CMD_GET_MPATH,
8525 .doit = nl80211_get_mpath,
8526 .dumpit = nl80211_dump_mpath,
8527 .policy = nl80211_policy,
8528 .flags = GENL_ADMIN_PERM,
8529 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8530 NL80211_FLAG_NEED_RTNL,
8533 .cmd = NL80211_CMD_SET_MPATH,
8534 .doit = nl80211_set_mpath,
8535 .policy = nl80211_policy,
8536 .flags = GENL_ADMIN_PERM,
8537 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8538 NL80211_FLAG_NEED_RTNL,
8541 .cmd = NL80211_CMD_NEW_MPATH,
8542 .doit = nl80211_new_mpath,
8543 .policy = nl80211_policy,
8544 .flags = GENL_ADMIN_PERM,
8545 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8546 NL80211_FLAG_NEED_RTNL,
8549 .cmd = NL80211_CMD_DEL_MPATH,
8550 .doit = nl80211_del_mpath,
8551 .policy = nl80211_policy,
8552 .flags = GENL_ADMIN_PERM,
8553 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8554 NL80211_FLAG_NEED_RTNL,
8557 .cmd = NL80211_CMD_SET_BSS,
8558 .doit = nl80211_set_bss,
8559 .policy = nl80211_policy,
8560 .flags = GENL_ADMIN_PERM,
8561 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8562 NL80211_FLAG_NEED_RTNL,
8565 .cmd = NL80211_CMD_GET_REG,
8566 .doit = nl80211_get_reg,
8567 .policy = nl80211_policy,
8568 /* can be retrieved by unprivileged users */
8571 .cmd = NL80211_CMD_SET_REG,
8572 .doit = nl80211_set_reg,
8573 .policy = nl80211_policy,
8574 .flags = GENL_ADMIN_PERM,
8577 .cmd = NL80211_CMD_REQ_SET_REG,
8578 .doit = nl80211_req_set_reg,
8579 .policy = nl80211_policy,
8580 .flags = GENL_ADMIN_PERM,
8583 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8584 .doit = nl80211_get_mesh_config,
8585 .policy = nl80211_policy,
8586 /* can be retrieved by unprivileged users */
8587 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8588 NL80211_FLAG_NEED_RTNL,
8591 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8592 .doit = nl80211_update_mesh_config,
8593 .policy = nl80211_policy,
8594 .flags = GENL_ADMIN_PERM,
8595 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8596 NL80211_FLAG_NEED_RTNL,
8599 .cmd = NL80211_CMD_TRIGGER_SCAN,
8600 .doit = nl80211_trigger_scan,
8601 .policy = nl80211_policy,
8602 .flags = GENL_ADMIN_PERM,
8603 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8604 NL80211_FLAG_NEED_RTNL,
8607 .cmd = NL80211_CMD_GET_SCAN,
8608 .policy = nl80211_policy,
8609 .dumpit = nl80211_dump_scan,
8612 .cmd = NL80211_CMD_START_SCHED_SCAN,
8613 .doit = nl80211_start_sched_scan,
8614 .policy = nl80211_policy,
8615 .flags = GENL_ADMIN_PERM,
8616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8617 NL80211_FLAG_NEED_RTNL,
8620 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8621 .doit = nl80211_stop_sched_scan,
8622 .policy = nl80211_policy,
8623 .flags = GENL_ADMIN_PERM,
8624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8625 NL80211_FLAG_NEED_RTNL,
8628 .cmd = NL80211_CMD_AUTHENTICATE,
8629 .doit = nl80211_authenticate,
8630 .policy = nl80211_policy,
8631 .flags = GENL_ADMIN_PERM,
8632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8633 NL80211_FLAG_NEED_RTNL,
8636 .cmd = NL80211_CMD_ASSOCIATE,
8637 .doit = nl80211_associate,
8638 .policy = nl80211_policy,
8639 .flags = GENL_ADMIN_PERM,
8640 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8641 NL80211_FLAG_NEED_RTNL,
8644 .cmd = NL80211_CMD_DEAUTHENTICATE,
8645 .doit = nl80211_deauthenticate,
8646 .policy = nl80211_policy,
8647 .flags = GENL_ADMIN_PERM,
8648 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8649 NL80211_FLAG_NEED_RTNL,
8652 .cmd = NL80211_CMD_DISASSOCIATE,
8653 .doit = nl80211_disassociate,
8654 .policy = nl80211_policy,
8655 .flags = GENL_ADMIN_PERM,
8656 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8657 NL80211_FLAG_NEED_RTNL,
8660 .cmd = NL80211_CMD_JOIN_IBSS,
8661 .doit = nl80211_join_ibss,
8662 .policy = nl80211_policy,
8663 .flags = GENL_ADMIN_PERM,
8664 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8665 NL80211_FLAG_NEED_RTNL,
8668 .cmd = NL80211_CMD_LEAVE_IBSS,
8669 .doit = nl80211_leave_ibss,
8670 .policy = nl80211_policy,
8671 .flags = GENL_ADMIN_PERM,
8672 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8673 NL80211_FLAG_NEED_RTNL,
8675 #ifdef CONFIG_NL80211_TESTMODE
8677 .cmd = NL80211_CMD_TESTMODE,
8678 .doit = nl80211_testmode_do,
8679 .dumpit = nl80211_testmode_dump,
8680 .policy = nl80211_policy,
8681 .flags = GENL_ADMIN_PERM,
8682 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8683 NL80211_FLAG_NEED_RTNL,
8687 .cmd = NL80211_CMD_CONNECT,
8688 .doit = nl80211_connect,
8689 .policy = nl80211_policy,
8690 .flags = GENL_ADMIN_PERM,
8691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8692 NL80211_FLAG_NEED_RTNL,
8695 .cmd = NL80211_CMD_DISCONNECT,
8696 .doit = nl80211_disconnect,
8697 .policy = nl80211_policy,
8698 .flags = GENL_ADMIN_PERM,
8699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8700 NL80211_FLAG_NEED_RTNL,
8703 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8704 .doit = nl80211_wiphy_netns,
8705 .policy = nl80211_policy,
8706 .flags = GENL_ADMIN_PERM,
8707 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8708 NL80211_FLAG_NEED_RTNL,
8711 .cmd = NL80211_CMD_GET_SURVEY,
8712 .policy = nl80211_policy,
8713 .dumpit = nl80211_dump_survey,
8716 .cmd = NL80211_CMD_SET_PMKSA,
8717 .doit = nl80211_setdel_pmksa,
8718 .policy = nl80211_policy,
8719 .flags = GENL_ADMIN_PERM,
8720 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8721 NL80211_FLAG_NEED_RTNL,
8724 .cmd = NL80211_CMD_DEL_PMKSA,
8725 .doit = nl80211_setdel_pmksa,
8726 .policy = nl80211_policy,
8727 .flags = GENL_ADMIN_PERM,
8728 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8729 NL80211_FLAG_NEED_RTNL,
8732 .cmd = NL80211_CMD_FLUSH_PMKSA,
8733 .doit = nl80211_flush_pmksa,
8734 .policy = nl80211_policy,
8735 .flags = GENL_ADMIN_PERM,
8736 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8737 NL80211_FLAG_NEED_RTNL,
8740 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8741 .doit = nl80211_remain_on_channel,
8742 .policy = nl80211_policy,
8743 .flags = GENL_ADMIN_PERM,
8744 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8745 NL80211_FLAG_NEED_RTNL,
8748 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8749 .doit = nl80211_cancel_remain_on_channel,
8750 .policy = nl80211_policy,
8751 .flags = GENL_ADMIN_PERM,
8752 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8753 NL80211_FLAG_NEED_RTNL,
8756 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8757 .doit = nl80211_set_tx_bitrate_mask,
8758 .policy = nl80211_policy,
8759 .flags = GENL_ADMIN_PERM,
8760 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8761 NL80211_FLAG_NEED_RTNL,
8764 .cmd = NL80211_CMD_REGISTER_FRAME,
8765 .doit = nl80211_register_mgmt,
8766 .policy = nl80211_policy,
8767 .flags = GENL_ADMIN_PERM,
8768 .internal_flags = NL80211_FLAG_NEED_WDEV |
8769 NL80211_FLAG_NEED_RTNL,
8772 .cmd = NL80211_CMD_FRAME,
8773 .doit = nl80211_tx_mgmt,
8774 .policy = nl80211_policy,
8775 .flags = GENL_ADMIN_PERM,
8776 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8777 NL80211_FLAG_NEED_RTNL,
8780 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8781 .doit = nl80211_tx_mgmt_cancel_wait,
8782 .policy = nl80211_policy,
8783 .flags = GENL_ADMIN_PERM,
8784 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8785 NL80211_FLAG_NEED_RTNL,
8788 .cmd = NL80211_CMD_SET_POWER_SAVE,
8789 .doit = nl80211_set_power_save,
8790 .policy = nl80211_policy,
8791 .flags = GENL_ADMIN_PERM,
8792 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8793 NL80211_FLAG_NEED_RTNL,
8796 .cmd = NL80211_CMD_GET_POWER_SAVE,
8797 .doit = nl80211_get_power_save,
8798 .policy = nl80211_policy,
8799 /* can be retrieved by unprivileged users */
8800 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8801 NL80211_FLAG_NEED_RTNL,
8804 .cmd = NL80211_CMD_SET_CQM,
8805 .doit = nl80211_set_cqm,
8806 .policy = nl80211_policy,
8807 .flags = GENL_ADMIN_PERM,
8808 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8809 NL80211_FLAG_NEED_RTNL,
8812 .cmd = NL80211_CMD_SET_CHANNEL,
8813 .doit = nl80211_set_channel,
8814 .policy = nl80211_policy,
8815 .flags = GENL_ADMIN_PERM,
8816 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8817 NL80211_FLAG_NEED_RTNL,
8820 .cmd = NL80211_CMD_SET_WDS_PEER,
8821 .doit = nl80211_set_wds_peer,
8822 .policy = nl80211_policy,
8823 .flags = GENL_ADMIN_PERM,
8824 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8825 NL80211_FLAG_NEED_RTNL,
8828 .cmd = NL80211_CMD_JOIN_MESH,
8829 .doit = nl80211_join_mesh,
8830 .policy = nl80211_policy,
8831 .flags = GENL_ADMIN_PERM,
8832 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8833 NL80211_FLAG_NEED_RTNL,
8836 .cmd = NL80211_CMD_LEAVE_MESH,
8837 .doit = nl80211_leave_mesh,
8838 .policy = nl80211_policy,
8839 .flags = GENL_ADMIN_PERM,
8840 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8841 NL80211_FLAG_NEED_RTNL,
8845 .cmd = NL80211_CMD_GET_WOWLAN,
8846 .doit = nl80211_get_wowlan,
8847 .policy = nl80211_policy,
8848 /* can be retrieved by unprivileged users */
8849 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8850 NL80211_FLAG_NEED_RTNL,
8853 .cmd = NL80211_CMD_SET_WOWLAN,
8854 .doit = nl80211_set_wowlan,
8855 .policy = nl80211_policy,
8856 .flags = GENL_ADMIN_PERM,
8857 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8858 NL80211_FLAG_NEED_RTNL,
8862 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8863 .doit = nl80211_set_rekey_data,
8864 .policy = nl80211_policy,
8865 .flags = GENL_ADMIN_PERM,
8866 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8867 NL80211_FLAG_NEED_RTNL,
8870 .cmd = NL80211_CMD_TDLS_MGMT,
8871 .doit = nl80211_tdls_mgmt,
8872 .policy = nl80211_policy,
8873 .flags = GENL_ADMIN_PERM,
8874 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8875 NL80211_FLAG_NEED_RTNL,
8878 .cmd = NL80211_CMD_TDLS_OPER,
8879 .doit = nl80211_tdls_oper,
8880 .policy = nl80211_policy,
8881 .flags = GENL_ADMIN_PERM,
8882 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8883 NL80211_FLAG_NEED_RTNL,
8886 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8887 .doit = nl80211_register_unexpected_frame,
8888 .policy = nl80211_policy,
8889 .flags = GENL_ADMIN_PERM,
8890 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8891 NL80211_FLAG_NEED_RTNL,
8894 .cmd = NL80211_CMD_PROBE_CLIENT,
8895 .doit = nl80211_probe_client,
8896 .policy = nl80211_policy,
8897 .flags = GENL_ADMIN_PERM,
8898 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8899 NL80211_FLAG_NEED_RTNL,
8902 .cmd = NL80211_CMD_REGISTER_BEACONS,
8903 .doit = nl80211_register_beacons,
8904 .policy = nl80211_policy,
8905 .flags = GENL_ADMIN_PERM,
8906 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8907 NL80211_FLAG_NEED_RTNL,
8910 .cmd = NL80211_CMD_SET_NOACK_MAP,
8911 .doit = nl80211_set_noack_map,
8912 .policy = nl80211_policy,
8913 .flags = GENL_ADMIN_PERM,
8914 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8915 NL80211_FLAG_NEED_RTNL,
8918 .cmd = NL80211_CMD_START_P2P_DEVICE,
8919 .doit = nl80211_start_p2p_device,
8920 .policy = nl80211_policy,
8921 .flags = GENL_ADMIN_PERM,
8922 .internal_flags = NL80211_FLAG_NEED_WDEV |
8923 NL80211_FLAG_NEED_RTNL,
8926 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8927 .doit = nl80211_stop_p2p_device,
8928 .policy = nl80211_policy,
8929 .flags = GENL_ADMIN_PERM,
8930 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8931 NL80211_FLAG_NEED_RTNL,
8934 .cmd = NL80211_CMD_SET_MCAST_RATE,
8935 .doit = nl80211_set_mcast_rate,
8936 .policy = nl80211_policy,
8937 .flags = GENL_ADMIN_PERM,
8938 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8939 NL80211_FLAG_NEED_RTNL,
8942 .cmd = NL80211_CMD_SET_MAC_ACL,
8943 .doit = nl80211_set_mac_acl,
8944 .policy = nl80211_policy,
8945 .flags = GENL_ADMIN_PERM,
8946 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8947 NL80211_FLAG_NEED_RTNL,
8950 .cmd = NL80211_CMD_RADAR_DETECT,
8951 .doit = nl80211_start_radar_detection,
8952 .policy = nl80211_policy,
8953 .flags = GENL_ADMIN_PERM,
8954 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8955 NL80211_FLAG_NEED_RTNL,
8958 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8959 .doit = nl80211_get_protocol_features,
8960 .policy = nl80211_policy,
8963 .cmd = NL80211_CMD_UPDATE_FT_IES,
8964 .doit = nl80211_update_ft_ies,
8965 .policy = nl80211_policy,
8966 .flags = GENL_ADMIN_PERM,
8967 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8968 NL80211_FLAG_NEED_RTNL,
8971 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
8972 .doit = nl80211_crit_protocol_start,
8973 .policy = nl80211_policy,
8974 .flags = GENL_ADMIN_PERM,
8975 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8976 NL80211_FLAG_NEED_RTNL,
8979 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
8980 .doit = nl80211_crit_protocol_stop,
8981 .policy = nl80211_policy,
8982 .flags = GENL_ADMIN_PERM,
8983 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8984 NL80211_FLAG_NEED_RTNL,
8988 static struct genl_multicast_group nl80211_mlme_mcgrp = {
8992 /* multicast groups */
8993 static struct genl_multicast_group nl80211_config_mcgrp = {
8996 static struct genl_multicast_group nl80211_scan_mcgrp = {
8999 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9000 .name = "regulatory",
9003 /* notification functions */
9005 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9007 struct sk_buff *msg;
9009 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9013 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
9014 false, NULL, NULL, NULL) < 0) {
9019 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9020 nl80211_config_mcgrp.id, GFP_KERNEL);
9023 static int nl80211_add_scan_req(struct sk_buff *msg,
9024 struct cfg80211_registered_device *rdev)
9026 struct cfg80211_scan_request *req = rdev->scan_req;
9027 struct nlattr *nest;
9030 lockdep_assert_held(&rdev->sched_scan_mtx);
9035 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9037 goto nla_put_failure;
9038 for (i = 0; i < req->n_ssids; i++) {
9039 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9040 goto nla_put_failure;
9042 nla_nest_end(msg, nest);
9044 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9046 goto nla_put_failure;
9047 for (i = 0; i < req->n_channels; i++) {
9048 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9049 goto nla_put_failure;
9051 nla_nest_end(msg, nest);
9054 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9055 goto nla_put_failure;
9058 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9065 static int nl80211_send_scan_msg(struct sk_buff *msg,
9066 struct cfg80211_registered_device *rdev,
9067 struct wireless_dev *wdev,
9068 u32 portid, u32 seq, int flags,
9073 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9077 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9078 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9079 wdev->netdev->ifindex)) ||
9080 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9081 goto nla_put_failure;
9083 /* ignore errors and send incomplete event anyway */
9084 nl80211_add_scan_req(msg, rdev);
9086 return genlmsg_end(msg, hdr);
9089 genlmsg_cancel(msg, hdr);
9094 nl80211_send_sched_scan_msg(struct sk_buff *msg,
9095 struct cfg80211_registered_device *rdev,
9096 struct net_device *netdev,
9097 u32 portid, u32 seq, int flags, u32 cmd)
9101 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9105 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9106 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9107 goto nla_put_failure;
9109 return genlmsg_end(msg, hdr);
9112 genlmsg_cancel(msg, hdr);
9116 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
9117 struct wireless_dev *wdev)
9119 struct sk_buff *msg;
9121 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9125 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9126 NL80211_CMD_TRIGGER_SCAN) < 0) {
9131 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9132 nl80211_scan_mcgrp.id, GFP_KERNEL);
9135 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
9136 struct wireless_dev *wdev)
9138 struct sk_buff *msg;
9140 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9144 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9145 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
9150 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9151 nl80211_scan_mcgrp.id, GFP_KERNEL);
9154 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
9155 struct wireless_dev *wdev)
9157 struct sk_buff *msg;
9159 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9163 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9164 NL80211_CMD_SCAN_ABORTED) < 0) {
9169 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9170 nl80211_scan_mcgrp.id, GFP_KERNEL);
9173 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9174 struct net_device *netdev)
9176 struct sk_buff *msg;
9178 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9182 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9183 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9188 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9189 nl80211_scan_mcgrp.id, GFP_KERNEL);
9192 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9193 struct net_device *netdev, u32 cmd)
9195 struct sk_buff *msg;
9197 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9201 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9206 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9207 nl80211_scan_mcgrp.id, GFP_KERNEL);
9211 * This can happen on global regulatory changes or device specific settings
9212 * based on custom world regulatory domains.
9214 void nl80211_send_reg_change_event(struct regulatory_request *request)
9216 struct sk_buff *msg;
9219 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9223 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9229 /* Userspace can always count this one always being set */
9230 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9231 goto nla_put_failure;
9233 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9234 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9235 NL80211_REGDOM_TYPE_WORLD))
9236 goto nla_put_failure;
9237 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9238 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9239 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9240 goto nla_put_failure;
9241 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9242 request->intersect) {
9243 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9244 NL80211_REGDOM_TYPE_INTERSECTION))
9245 goto nla_put_failure;
9247 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9248 NL80211_REGDOM_TYPE_COUNTRY) ||
9249 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9251 goto nla_put_failure;
9254 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9255 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9256 goto nla_put_failure;
9258 genlmsg_end(msg, hdr);
9261 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9268 genlmsg_cancel(msg, hdr);
9272 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9273 struct net_device *netdev,
9274 const u8 *buf, size_t len,
9275 enum nl80211_commands cmd, gfp_t gfp)
9277 struct sk_buff *msg;
9280 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9284 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9290 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9291 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9292 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9293 goto nla_put_failure;
9295 genlmsg_end(msg, hdr);
9297 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9298 nl80211_mlme_mcgrp.id, gfp);
9302 genlmsg_cancel(msg, hdr);
9306 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
9307 struct net_device *netdev, const u8 *buf,
9308 size_t len, gfp_t gfp)
9310 nl80211_send_mlme_event(rdev, netdev, buf, len,
9311 NL80211_CMD_AUTHENTICATE, gfp);
9314 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9315 struct net_device *netdev, const u8 *buf,
9316 size_t len, gfp_t gfp)
9318 nl80211_send_mlme_event(rdev, netdev, buf, len,
9319 NL80211_CMD_ASSOCIATE, gfp);
9322 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
9323 struct net_device *netdev, const u8 *buf,
9324 size_t len, gfp_t gfp)
9326 nl80211_send_mlme_event(rdev, netdev, buf, len,
9327 NL80211_CMD_DEAUTHENTICATE, gfp);
9330 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9331 struct net_device *netdev, const u8 *buf,
9332 size_t len, gfp_t gfp)
9334 nl80211_send_mlme_event(rdev, netdev, buf, len,
9335 NL80211_CMD_DISASSOCIATE, gfp);
9338 void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
9341 struct wireless_dev *wdev = dev->ieee80211_ptr;
9342 struct wiphy *wiphy = wdev->wiphy;
9343 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9345 trace_cfg80211_send_unprot_deauth(dev);
9346 nl80211_send_mlme_event(rdev, dev, buf, len,
9347 NL80211_CMD_UNPROT_DEAUTHENTICATE, GFP_ATOMIC);
9349 EXPORT_SYMBOL(cfg80211_send_unprot_deauth);
9351 void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
9354 struct wireless_dev *wdev = dev->ieee80211_ptr;
9355 struct wiphy *wiphy = wdev->wiphy;
9356 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9358 trace_cfg80211_send_unprot_disassoc(dev);
9359 nl80211_send_mlme_event(rdev, dev, buf, len,
9360 NL80211_CMD_UNPROT_DISASSOCIATE, GFP_ATOMIC);
9362 EXPORT_SYMBOL(cfg80211_send_unprot_disassoc);
9364 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9365 struct net_device *netdev, int cmd,
9366 const u8 *addr, gfp_t gfp)
9368 struct sk_buff *msg;
9371 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9375 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9381 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9382 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9383 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9384 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9385 goto nla_put_failure;
9387 genlmsg_end(msg, hdr);
9389 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9390 nl80211_mlme_mcgrp.id, gfp);
9394 genlmsg_cancel(msg, hdr);
9398 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
9399 struct net_device *netdev, const u8 *addr,
9402 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
9406 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
9407 struct net_device *netdev, const u8 *addr,
9410 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9414 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9415 struct net_device *netdev, const u8 *bssid,
9416 const u8 *req_ie, size_t req_ie_len,
9417 const u8 *resp_ie, size_t resp_ie_len,
9418 u16 status, gfp_t gfp)
9420 struct sk_buff *msg;
9423 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9427 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9433 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9434 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9435 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9436 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9438 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9440 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9441 goto nla_put_failure;
9443 genlmsg_end(msg, hdr);
9445 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9446 nl80211_mlme_mcgrp.id, gfp);
9450 genlmsg_cancel(msg, hdr);
9455 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9456 struct net_device *netdev, const u8 *bssid,
9457 const u8 *req_ie, size_t req_ie_len,
9458 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9460 struct sk_buff *msg;
9463 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9467 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9473 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9474 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9475 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9477 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9479 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9480 goto nla_put_failure;
9482 genlmsg_end(msg, hdr);
9484 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9485 nl80211_mlme_mcgrp.id, gfp);
9489 genlmsg_cancel(msg, hdr);
9494 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9495 struct net_device *netdev, u16 reason,
9496 const u8 *ie, size_t ie_len, bool from_ap)
9498 struct sk_buff *msg;
9501 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9505 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9511 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9512 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9513 (from_ap && reason &&
9514 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9516 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9517 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9518 goto nla_put_failure;
9520 genlmsg_end(msg, hdr);
9522 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9523 nl80211_mlme_mcgrp.id, GFP_KERNEL);
9527 genlmsg_cancel(msg, hdr);
9532 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9533 struct net_device *netdev, const u8 *bssid,
9536 struct sk_buff *msg;
9539 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9543 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9549 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9550 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9551 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9552 goto nla_put_failure;
9554 genlmsg_end(msg, hdr);
9556 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9557 nl80211_mlme_mcgrp.id, gfp);
9561 genlmsg_cancel(msg, hdr);
9565 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9566 const u8* ie, u8 ie_len, gfp_t gfp)
9568 struct wireless_dev *wdev = dev->ieee80211_ptr;
9569 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9570 struct sk_buff *msg;
9573 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9576 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9578 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9582 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9588 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9589 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9590 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9592 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9593 goto nla_put_failure;
9595 genlmsg_end(msg, hdr);
9597 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9598 nl80211_mlme_mcgrp.id, gfp);
9602 genlmsg_cancel(msg, hdr);
9605 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
9607 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9608 struct net_device *netdev, const u8 *addr,
9609 enum nl80211_key_type key_type, int key_id,
9610 const u8 *tsc, gfp_t gfp)
9612 struct sk_buff *msg;
9615 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9619 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9625 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9626 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9627 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9628 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9630 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9631 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9632 goto nla_put_failure;
9634 genlmsg_end(msg, hdr);
9636 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9637 nl80211_mlme_mcgrp.id, gfp);
9641 genlmsg_cancel(msg, hdr);
9645 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9646 struct ieee80211_channel *channel_before,
9647 struct ieee80211_channel *channel_after)
9649 struct sk_buff *msg;
9651 struct nlattr *nl_freq;
9653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
9657 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9664 * Since we are applying the beacon hint to a wiphy we know its
9665 * wiphy_idx is valid
9667 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9668 goto nla_put_failure;
9671 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9673 goto nla_put_failure;
9674 if (nl80211_msg_put_channel(msg, channel_before, false))
9675 goto nla_put_failure;
9676 nla_nest_end(msg, nl_freq);
9679 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9681 goto nla_put_failure;
9682 if (nl80211_msg_put_channel(msg, channel_after, false))
9683 goto nla_put_failure;
9684 nla_nest_end(msg, nl_freq);
9686 genlmsg_end(msg, hdr);
9689 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9696 genlmsg_cancel(msg, hdr);
9700 static void nl80211_send_remain_on_chan_event(
9701 int cmd, struct cfg80211_registered_device *rdev,
9702 struct wireless_dev *wdev, u64 cookie,
9703 struct ieee80211_channel *chan,
9704 unsigned int duration, gfp_t gfp)
9706 struct sk_buff *msg;
9709 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9713 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9719 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9720 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9721 wdev->netdev->ifindex)) ||
9722 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9723 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
9724 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9725 NL80211_CHAN_NO_HT) ||
9726 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9727 goto nla_put_failure;
9729 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9730 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9731 goto nla_put_failure;
9733 genlmsg_end(msg, hdr);
9735 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9736 nl80211_mlme_mcgrp.id, gfp);
9740 genlmsg_cancel(msg, hdr);
9744 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9745 struct ieee80211_channel *chan,
9746 unsigned int duration, gfp_t gfp)
9748 struct wiphy *wiphy = wdev->wiphy;
9749 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9751 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9752 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
9753 rdev, wdev, cookie, chan,
9756 EXPORT_SYMBOL(cfg80211_ready_on_channel);
9758 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9759 struct ieee80211_channel *chan,
9762 struct wiphy *wiphy = wdev->wiphy;
9763 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9765 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9766 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9767 rdev, wdev, cookie, chan, 0, gfp);
9769 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9771 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9772 struct station_info *sinfo, gfp_t gfp)
9774 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9775 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9776 struct sk_buff *msg;
9778 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9780 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9784 if (nl80211_send_station(msg, 0, 0, 0,
9785 rdev, dev, mac_addr, sinfo) < 0) {
9790 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9791 nl80211_mlme_mcgrp.id, gfp);
9793 EXPORT_SYMBOL(cfg80211_new_sta);
9795 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
9797 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9798 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9799 struct sk_buff *msg;
9802 trace_cfg80211_del_sta(dev, mac_addr);
9804 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9808 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9814 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9815 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9816 goto nla_put_failure;
9818 genlmsg_end(msg, hdr);
9820 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9821 nl80211_mlme_mcgrp.id, gfp);
9825 genlmsg_cancel(msg, hdr);
9828 EXPORT_SYMBOL(cfg80211_del_sta);
9830 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9831 enum nl80211_connect_failed_reason reason,
9834 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9835 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9836 struct sk_buff *msg;
9839 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9843 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9849 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9850 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9851 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9852 goto nla_put_failure;
9854 genlmsg_end(msg, hdr);
9856 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9857 nl80211_mlme_mcgrp.id, gfp);
9861 genlmsg_cancel(msg, hdr);
9864 EXPORT_SYMBOL(cfg80211_conn_failed);
9866 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9867 const u8 *addr, gfp_t gfp)
9869 struct wireless_dev *wdev = dev->ieee80211_ptr;
9870 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9871 struct sk_buff *msg;
9874 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
9879 msg = nlmsg_new(100, gfp);
9883 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9889 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9890 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9891 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9892 goto nla_put_failure;
9894 err = genlmsg_end(msg, hdr);
9900 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9904 genlmsg_cancel(msg, hdr);
9909 bool cfg80211_rx_spurious_frame(struct net_device *dev,
9910 const u8 *addr, gfp_t gfp)
9912 struct wireless_dev *wdev = dev->ieee80211_ptr;
9915 trace_cfg80211_rx_spurious_frame(dev, addr);
9917 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9918 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9919 trace_cfg80211_return_bool(false);
9922 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9924 trace_cfg80211_return_bool(ret);
9927 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
9929 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9930 const u8 *addr, gfp_t gfp)
9932 struct wireless_dev *wdev = dev->ieee80211_ptr;
9935 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9937 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9938 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9939 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9940 trace_cfg80211_return_bool(false);
9943 ret = __nl80211_unexpected_frame(dev,
9944 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9946 trace_cfg80211_return_bool(ret);
9949 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
9951 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
9952 struct wireless_dev *wdev, u32 nlportid,
9953 int freq, int sig_dbm,
9954 const u8 *buf, size_t len, gfp_t gfp)
9956 struct net_device *netdev = wdev->netdev;
9957 struct sk_buff *msg;
9960 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9964 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9970 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9971 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9972 netdev->ifindex)) ||
9973 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9975 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9976 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9977 goto nla_put_failure;
9979 genlmsg_end(msg, hdr);
9981 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9984 genlmsg_cancel(msg, hdr);
9989 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
9990 const u8 *buf, size_t len, bool ack, gfp_t gfp)
9992 struct wiphy *wiphy = wdev->wiphy;
9993 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9994 struct net_device *netdev = wdev->netdev;
9995 struct sk_buff *msg;
9998 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10000 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10004 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
10010 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10011 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10012 netdev->ifindex)) ||
10013 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10014 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10015 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10016 goto nla_put_failure;
10018 genlmsg_end(msg, hdr);
10020 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
10024 genlmsg_cancel(msg, hdr);
10027 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
10029 void cfg80211_cqm_rssi_notify(struct net_device *dev,
10030 enum nl80211_cqm_rssi_threshold_event rssi_event,
10033 struct wireless_dev *wdev = dev->ieee80211_ptr;
10034 struct wiphy *wiphy = wdev->wiphy;
10035 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10036 struct sk_buff *msg;
10037 struct nlattr *pinfoattr;
10040 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10046 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10052 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10053 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
10054 goto nla_put_failure;
10056 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10058 goto nla_put_failure;
10060 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10062 goto nla_put_failure;
10064 nla_nest_end(msg, pinfoattr);
10066 genlmsg_end(msg, hdr);
10068 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10069 nl80211_mlme_mcgrp.id, gfp);
10073 genlmsg_cancel(msg, hdr);
10076 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
10078 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10079 struct net_device *netdev, const u8 *bssid,
10080 const u8 *replay_ctr, gfp_t gfp)
10082 struct sk_buff *msg;
10083 struct nlattr *rekey_attr;
10086 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10090 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10096 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10097 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10098 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10099 goto nla_put_failure;
10101 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10103 goto nla_put_failure;
10105 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10106 NL80211_REPLAY_CTR_LEN, replay_ctr))
10107 goto nla_put_failure;
10109 nla_nest_end(msg, rekey_attr);
10111 genlmsg_end(msg, hdr);
10113 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10114 nl80211_mlme_mcgrp.id, gfp);
10118 genlmsg_cancel(msg, hdr);
10122 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10123 const u8 *replay_ctr, gfp_t gfp)
10125 struct wireless_dev *wdev = dev->ieee80211_ptr;
10126 struct wiphy *wiphy = wdev->wiphy;
10127 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10129 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10130 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10132 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10135 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10136 struct net_device *netdev, int index,
10137 const u8 *bssid, bool preauth, gfp_t gfp)
10139 struct sk_buff *msg;
10140 struct nlattr *attr;
10143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10147 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10153 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10154 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10155 goto nla_put_failure;
10157 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10159 goto nla_put_failure;
10161 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10162 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10164 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10165 goto nla_put_failure;
10167 nla_nest_end(msg, attr);
10169 genlmsg_end(msg, hdr);
10171 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10172 nl80211_mlme_mcgrp.id, gfp);
10176 genlmsg_cancel(msg, hdr);
10180 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10181 const u8 *bssid, bool preauth, gfp_t gfp)
10183 struct wireless_dev *wdev = dev->ieee80211_ptr;
10184 struct wiphy *wiphy = wdev->wiphy;
10185 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10187 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10188 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10190 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10192 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10193 struct net_device *netdev,
10194 struct cfg80211_chan_def *chandef,
10197 struct sk_buff *msg;
10200 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10204 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10210 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10211 goto nla_put_failure;
10213 if (nl80211_send_chandef(msg, chandef))
10214 goto nla_put_failure;
10216 genlmsg_end(msg, hdr);
10218 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10219 nl80211_mlme_mcgrp.id, gfp);
10223 genlmsg_cancel(msg, hdr);
10227 void cfg80211_ch_switch_notify(struct net_device *dev,
10228 struct cfg80211_chan_def *chandef)
10230 struct wireless_dev *wdev = dev->ieee80211_ptr;
10231 struct wiphy *wiphy = wdev->wiphy;
10232 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10234 trace_cfg80211_ch_switch_notify(dev, chandef);
10238 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10239 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10242 wdev->channel = chandef->chan;
10243 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10248 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10250 void cfg80211_cqm_txe_notify(struct net_device *dev,
10251 const u8 *peer, u32 num_packets,
10252 u32 rate, u32 intvl, gfp_t gfp)
10254 struct wireless_dev *wdev = dev->ieee80211_ptr;
10255 struct wiphy *wiphy = wdev->wiphy;
10256 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10257 struct sk_buff *msg;
10258 struct nlattr *pinfoattr;
10261 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10265 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10271 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10272 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10273 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10274 goto nla_put_failure;
10276 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10278 goto nla_put_failure;
10280 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10281 goto nla_put_failure;
10283 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10284 goto nla_put_failure;
10286 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10287 goto nla_put_failure;
10289 nla_nest_end(msg, pinfoattr);
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);
10301 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
10304 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10305 struct cfg80211_chan_def *chandef,
10306 enum nl80211_radar_event event,
10307 struct net_device *netdev, gfp_t gfp)
10309 struct sk_buff *msg;
10312 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10316 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10322 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10323 goto nla_put_failure;
10325 /* NOP and radar events don't need a netdev parameter */
10327 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10329 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10330 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10331 goto nla_put_failure;
10334 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10335 goto nla_put_failure;
10337 if (nl80211_send_chandef(msg, chandef))
10338 goto nla_put_failure;
10340 if (genlmsg_end(msg, hdr) < 0) {
10345 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10346 nl80211_mlme_mcgrp.id, gfp);
10350 genlmsg_cancel(msg, hdr);
10354 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10355 const u8 *peer, u32 num_packets, gfp_t gfp)
10357 struct wireless_dev *wdev = dev->ieee80211_ptr;
10358 struct wiphy *wiphy = wdev->wiphy;
10359 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10360 struct sk_buff *msg;
10361 struct nlattr *pinfoattr;
10364 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10366 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10370 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10376 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10377 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10378 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10379 goto nla_put_failure;
10381 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10383 goto nla_put_failure;
10385 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10386 goto nla_put_failure;
10388 nla_nest_end(msg, pinfoattr);
10390 genlmsg_end(msg, hdr);
10392 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10393 nl80211_mlme_mcgrp.id, gfp);
10397 genlmsg_cancel(msg, hdr);
10400 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
10402 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10403 u64 cookie, bool acked, gfp_t gfp)
10405 struct wireless_dev *wdev = dev->ieee80211_ptr;
10406 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10407 struct sk_buff *msg;
10411 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10413 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10418 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10424 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10425 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10426 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10427 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10428 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10429 goto nla_put_failure;
10431 err = genlmsg_end(msg, hdr);
10437 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10438 nl80211_mlme_mcgrp.id, gfp);
10442 genlmsg_cancel(msg, hdr);
10445 EXPORT_SYMBOL(cfg80211_probe_status);
10447 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10448 const u8 *frame, size_t len,
10449 int freq, int sig_dbm)
10451 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10452 struct sk_buff *msg;
10454 struct cfg80211_beacon_registration *reg;
10456 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10458 spin_lock_bh(&rdev->beacon_registrations_lock);
10459 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10460 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10462 spin_unlock_bh(&rdev->beacon_registrations_lock);
10466 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10468 goto nla_put_failure;
10470 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10472 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10474 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10475 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10476 goto nla_put_failure;
10478 genlmsg_end(msg, hdr);
10480 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10482 spin_unlock_bh(&rdev->beacon_registrations_lock);
10486 spin_unlock_bh(&rdev->beacon_registrations_lock);
10488 genlmsg_cancel(msg, hdr);
10491 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10494 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10495 struct cfg80211_wowlan_wakeup *wakeup,
10498 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10499 struct sk_buff *msg;
10501 int err, size = 200;
10503 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10506 size += wakeup->packet_present_len;
10508 msg = nlmsg_new(size, gfp);
10512 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10516 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10517 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10520 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10521 wdev->netdev->ifindex))
10525 struct nlattr *reasons;
10527 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10529 if (wakeup->disconnect &&
10530 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10532 if (wakeup->magic_pkt &&
10533 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10535 if (wakeup->gtk_rekey_failure &&
10536 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10538 if (wakeup->eap_identity_req &&
10539 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10541 if (wakeup->four_way_handshake &&
10542 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10544 if (wakeup->rfkill_release &&
10545 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10548 if (wakeup->pattern_idx >= 0 &&
10549 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10550 wakeup->pattern_idx))
10553 if (wakeup->tcp_match)
10554 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10556 if (wakeup->tcp_connlost)
10558 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10560 if (wakeup->tcp_nomoretokens)
10562 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10564 if (wakeup->packet) {
10565 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10566 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10568 if (!wakeup->packet_80211) {
10570 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10572 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10575 if (wakeup->packet_len &&
10576 nla_put_u32(msg, len_attr, wakeup->packet_len))
10579 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10584 nla_nest_end(msg, reasons);
10587 err = genlmsg_end(msg, hdr);
10591 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10592 nl80211_mlme_mcgrp.id, gfp);
10598 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10601 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10602 enum nl80211_tdls_operation oper,
10603 u16 reason_code, gfp_t gfp)
10605 struct wireless_dev *wdev = dev->ieee80211_ptr;
10606 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10607 struct sk_buff *msg;
10611 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10614 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10618 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10624 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10625 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10626 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10627 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10628 (reason_code > 0 &&
10629 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10630 goto nla_put_failure;
10632 err = genlmsg_end(msg, hdr);
10638 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10639 nl80211_mlme_mcgrp.id, gfp);
10643 genlmsg_cancel(msg, hdr);
10646 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10648 static int nl80211_netlink_notify(struct notifier_block * nb,
10649 unsigned long state,
10652 struct netlink_notify *notify = _notify;
10653 struct cfg80211_registered_device *rdev;
10654 struct wireless_dev *wdev;
10655 struct cfg80211_beacon_registration *reg, *tmp;
10657 if (state != NETLINK_URELEASE)
10658 return NOTIFY_DONE;
10662 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
10663 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
10664 cfg80211_mlme_unregister_socket(wdev, notify->portid);
10666 spin_lock_bh(&rdev->beacon_registrations_lock);
10667 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10669 if (reg->nlportid == notify->portid) {
10670 list_del(®->list);
10675 spin_unlock_bh(&rdev->beacon_registrations_lock);
10680 return NOTIFY_DONE;
10683 static struct notifier_block nl80211_netlink_notifier = {
10684 .notifier_call = nl80211_netlink_notify,
10687 void cfg80211_ft_event(struct net_device *netdev,
10688 struct cfg80211_ft_event_params *ft_event)
10690 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10691 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10692 struct sk_buff *msg;
10696 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10698 if (!ft_event->target_ap)
10701 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10705 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10711 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10712 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10713 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10715 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10716 if (ft_event->ric_ies)
10717 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10718 ft_event->ric_ies);
10720 err = genlmsg_end(msg, hdr);
10726 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10727 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10729 EXPORT_SYMBOL(cfg80211_ft_event);
10731 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10733 struct cfg80211_registered_device *rdev;
10734 struct sk_buff *msg;
10738 rdev = wiphy_to_dev(wdev->wiphy);
10739 if (!rdev->crit_proto_nlportid)
10742 nlportid = rdev->crit_proto_nlportid;
10743 rdev->crit_proto_nlportid = 0;
10745 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10749 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10751 goto nla_put_failure;
10753 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10754 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10755 goto nla_put_failure;
10757 genlmsg_end(msg, hdr);
10759 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10764 genlmsg_cancel(msg, hdr);
10768 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10770 /* initialisation/exit functions */
10772 int nl80211_init(void)
10776 err = genl_register_family_with_ops(&nl80211_fam,
10777 nl80211_ops, ARRAY_SIZE(nl80211_ops));
10781 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10785 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10789 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10793 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10797 #ifdef CONFIG_NL80211_TESTMODE
10798 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10803 err = netlink_register_notifier(&nl80211_netlink_notifier);
10809 genl_unregister_family(&nl80211_fam);
10813 void nl80211_exit(void)
10815 netlink_unregister_notifier(&nl80211_netlink_notifier);
10816 genl_unregister_family(&nl80211_fam);