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 },
373 /* policy for the key attributes */
374 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
375 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
376 [NL80211_KEY_IDX] = { .type = NLA_U8 },
377 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
378 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
379 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
380 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
381 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
382 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
385 /* policy for the key default flags */
386 static const struct nla_policy
387 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
388 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
389 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
392 /* policy for WoWLAN attributes */
393 static const struct nla_policy
394 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
395 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
396 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
397 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
398 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
399 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
400 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
401 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
402 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
403 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
406 static const struct nla_policy
407 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
408 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
409 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
410 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
411 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
412 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
413 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
414 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
415 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
417 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
418 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
420 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
421 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
422 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
425 /* policy for GTK rekey offload attributes */
426 static const struct nla_policy
427 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
428 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
429 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
430 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
433 static const struct nla_policy
434 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
435 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
436 .len = IEEE80211_MAX_SSID_LEN },
437 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
440 /* ifidx get helper */
441 static int nl80211_get_ifidx(struct netlink_callback *cb)
445 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
446 nl80211_fam.attrbuf, nl80211_fam.maxattr,
451 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
454 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
460 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
461 struct netlink_callback *cb,
462 struct cfg80211_registered_device **rdev,
463 struct net_device **dev)
465 int ifidx = cb->args[0];
469 ifidx = nl80211_get_ifidx(cb);
477 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
483 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
485 err = PTR_ERR(*rdev);
495 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
497 cfg80211_unlock_rdev(rdev);
502 static bool is_valid_ie_attr(const struct nlattr *attr)
510 pos = nla_data(attr);
531 /* message building helper */
532 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
535 /* since there is no private header just add the generic one */
536 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
539 static int nl80211_msg_put_channel(struct sk_buff *msg,
540 struct ieee80211_channel *chan)
542 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
544 goto nla_put_failure;
546 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
547 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
548 goto nla_put_failure;
549 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
550 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
551 goto nla_put_failure;
552 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
553 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
554 goto nla_put_failure;
555 if (chan->flags & IEEE80211_CHAN_RADAR) {
556 u32 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
557 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
558 goto nla_put_failure;
559 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
561 goto nla_put_failure;
562 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, time))
563 goto nla_put_failure;
565 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
566 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
567 goto nla_put_failure;
568 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
569 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
570 goto nla_put_failure;
571 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
572 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
573 goto nla_put_failure;
574 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
575 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
576 goto nla_put_failure;
578 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
579 DBM_TO_MBM(chan->max_power)))
580 goto nla_put_failure;
588 /* netlink command implementations */
595 bool def_uni, def_multi;
598 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
600 struct nlattr *tb[NL80211_KEY_MAX + 1];
601 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
606 k->def = !!tb[NL80211_KEY_DEFAULT];
607 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
616 if (tb[NL80211_KEY_IDX])
617 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
619 if (tb[NL80211_KEY_DATA]) {
620 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
621 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
624 if (tb[NL80211_KEY_SEQ]) {
625 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
626 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
629 if (tb[NL80211_KEY_CIPHER])
630 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
632 if (tb[NL80211_KEY_TYPE]) {
633 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
634 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
638 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
639 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
640 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
641 tb[NL80211_KEY_DEFAULT_TYPES],
642 nl80211_key_default_policy);
646 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
647 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
653 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
655 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
656 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
657 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
660 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
661 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
662 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
665 if (info->attrs[NL80211_ATTR_KEY_IDX])
666 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
668 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
669 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
671 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
672 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
681 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
682 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
683 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
687 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
688 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
689 int err = nla_parse_nested(
690 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
691 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
692 nl80211_key_default_policy);
696 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
697 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
703 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
707 memset(k, 0, sizeof(*k));
711 if (info->attrs[NL80211_ATTR_KEY])
712 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
714 err = nl80211_parse_key_old(info, k);
719 if (k->def && k->defmgmt)
723 if (k->def_uni || !k->def_multi)
729 if (k->idx < 4 || k->idx > 5)
732 if (k->idx < 0 || k->idx > 3)
735 if (k->idx < 0 || k->idx > 5)
743 static struct cfg80211_cached_keys *
744 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
745 struct nlattr *keys, bool *no_ht)
747 struct key_parse parse;
749 struct cfg80211_cached_keys *result;
750 int rem, err, def = 0;
752 result = kzalloc(sizeof(*result), GFP_KERNEL);
754 return ERR_PTR(-ENOMEM);
757 result->defmgmt = -1;
759 nla_for_each_nested(key, keys, rem) {
760 memset(&parse, 0, sizeof(parse));
763 err = nl80211_parse_key_new(key, &parse);
769 if (parse.idx < 0 || parse.idx > 4)
775 result->def = parse.idx;
776 if (!parse.def_uni || !parse.def_multi)
778 } else if (parse.defmgmt)
780 err = cfg80211_validate_key_settings(rdev, &parse.p,
781 parse.idx, false, NULL);
784 result->params[parse.idx].cipher = parse.p.cipher;
785 result->params[parse.idx].key_len = parse.p.key_len;
786 result->params[parse.idx].key = result->data[parse.idx];
787 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
789 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
790 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
802 static int nl80211_key_allowed(struct wireless_dev *wdev)
804 ASSERT_WDEV_LOCK(wdev);
806 switch (wdev->iftype) {
807 case NL80211_IFTYPE_AP:
808 case NL80211_IFTYPE_AP_VLAN:
809 case NL80211_IFTYPE_P2P_GO:
810 case NL80211_IFTYPE_MESH_POINT:
812 case NL80211_IFTYPE_ADHOC:
813 if (!wdev->current_bss)
816 case NL80211_IFTYPE_STATION:
817 case NL80211_IFTYPE_P2P_CLIENT:
818 if (wdev->sme_state != CFG80211_SME_CONNECTED)
828 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
830 struct nlattr *nl_modes = nla_nest_start(msg, attr);
834 goto nla_put_failure;
838 if ((ifmodes & 1) && nla_put_flag(msg, i))
839 goto nla_put_failure;
844 nla_nest_end(msg, nl_modes);
851 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
854 struct nlattr *nl_combis;
857 nl_combis = nla_nest_start(msg,
858 NL80211_ATTR_INTERFACE_COMBINATIONS);
860 goto nla_put_failure;
862 for (i = 0; i < wiphy->n_iface_combinations; i++) {
863 const struct ieee80211_iface_combination *c;
864 struct nlattr *nl_combi, *nl_limits;
866 c = &wiphy->iface_combinations[i];
868 nl_combi = nla_nest_start(msg, i + 1);
870 goto nla_put_failure;
872 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
874 goto nla_put_failure;
876 for (j = 0; j < c->n_limits; j++) {
877 struct nlattr *nl_limit;
879 nl_limit = nla_nest_start(msg, j + 1);
881 goto nla_put_failure;
882 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
884 goto nla_put_failure;
885 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
887 goto nla_put_failure;
888 nla_nest_end(msg, nl_limit);
891 nla_nest_end(msg, nl_limits);
893 if (c->beacon_int_infra_match &&
894 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
895 goto nla_put_failure;
896 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
897 c->num_different_channels) ||
898 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
900 goto nla_put_failure;
901 if (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
902 c->radar_detect_widths))
903 goto nla_put_failure;
905 nla_nest_end(msg, nl_combi);
908 nla_nest_end(msg, nl_combis);
916 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
919 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
920 struct nlattr *nl_tcp;
925 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
929 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
930 tcp->data_payload_max))
933 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
934 tcp->data_payload_max))
937 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
940 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
941 sizeof(*tcp->tok), tcp->tok))
944 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
945 tcp->data_interval_max))
948 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
949 tcp->wake_payload_max))
952 nla_nest_end(msg, nl_tcp);
957 static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
958 struct cfg80211_registered_device *dev)
961 struct nlattr *nl_bands, *nl_band;
962 struct nlattr *nl_freqs, *nl_freq;
963 struct nlattr *nl_rates, *nl_rate;
964 struct nlattr *nl_cmds;
965 enum ieee80211_band band;
966 struct ieee80211_channel *chan;
967 struct ieee80211_rate *rate;
969 const struct ieee80211_txrx_stypes *mgmt_stypes =
970 dev->wiphy.mgmt_stypes;
972 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
976 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
977 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
978 nla_put_u32(msg, NL80211_ATTR_GENERATION,
979 cfg80211_rdev_list_generation) ||
980 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
981 dev->wiphy.retry_short) ||
982 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
983 dev->wiphy.retry_long) ||
984 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
985 dev->wiphy.frag_threshold) ||
986 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
987 dev->wiphy.rts_threshold) ||
988 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
989 dev->wiphy.coverage_class) ||
990 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
991 dev->wiphy.max_scan_ssids) ||
992 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
993 dev->wiphy.max_sched_scan_ssids) ||
994 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
995 dev->wiphy.max_scan_ie_len) ||
996 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
997 dev->wiphy.max_sched_scan_ie_len) ||
998 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
999 dev->wiphy.max_match_sets))
1000 goto nla_put_failure;
1002 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1003 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1004 goto nla_put_failure;
1005 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1006 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1007 goto nla_put_failure;
1008 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1009 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1010 goto nla_put_failure;
1011 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1012 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1013 goto nla_put_failure;
1014 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1015 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1016 goto nla_put_failure;
1017 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1018 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1019 goto nla_put_failure;
1021 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1022 sizeof(u32) * dev->wiphy.n_cipher_suites,
1023 dev->wiphy.cipher_suites))
1024 goto nla_put_failure;
1026 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1027 dev->wiphy.max_num_pmkids))
1028 goto nla_put_failure;
1030 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1031 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1032 goto nla_put_failure;
1034 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1035 dev->wiphy.available_antennas_tx) ||
1036 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1037 dev->wiphy.available_antennas_rx))
1038 goto nla_put_failure;
1040 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1041 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1042 dev->wiphy.probe_resp_offload))
1043 goto nla_put_failure;
1045 if ((dev->wiphy.available_antennas_tx ||
1046 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
1047 u32 tx_ant = 0, rx_ant = 0;
1049 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1051 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
1053 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
1055 goto nla_put_failure;
1059 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1060 dev->wiphy.interface_modes))
1061 goto nla_put_failure;
1063 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1065 goto nla_put_failure;
1067 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1068 if (!dev->wiphy.bands[band])
1071 nl_band = nla_nest_start(msg, band);
1073 goto nla_put_failure;
1076 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
1077 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1078 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
1079 &dev->wiphy.bands[band]->ht_cap.mcs) ||
1080 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1081 dev->wiphy.bands[band]->ht_cap.cap) ||
1082 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1083 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
1084 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1085 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
1086 goto nla_put_failure;
1089 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1090 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1091 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1092 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1093 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1094 dev->wiphy.bands[band]->vht_cap.cap)))
1095 goto nla_put_failure;
1097 /* add frequencies */
1098 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1100 goto nla_put_failure;
1102 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1103 nl_freq = nla_nest_start(msg, i);
1105 goto nla_put_failure;
1107 chan = &dev->wiphy.bands[band]->channels[i];
1109 if (nl80211_msg_put_channel(msg, chan))
1110 goto nla_put_failure;
1112 nla_nest_end(msg, nl_freq);
1115 nla_nest_end(msg, nl_freqs);
1118 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1120 goto nla_put_failure;
1122 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1123 nl_rate = nla_nest_start(msg, i);
1125 goto nla_put_failure;
1127 rate = &dev->wiphy.bands[band]->bitrates[i];
1128 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1130 goto nla_put_failure;
1131 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1133 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1134 goto nla_put_failure;
1136 nla_nest_end(msg, nl_rate);
1139 nla_nest_end(msg, nl_rates);
1141 nla_nest_end(msg, nl_band);
1143 nla_nest_end(msg, nl_bands);
1145 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1147 goto nla_put_failure;
1150 #define CMD(op, n) \
1152 if (dev->ops->op) { \
1154 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1155 goto nla_put_failure; \
1159 CMD(add_virtual_intf, NEW_INTERFACE);
1160 CMD(change_virtual_intf, SET_INTERFACE);
1161 CMD(add_key, NEW_KEY);
1162 CMD(start_ap, START_AP);
1163 CMD(add_station, NEW_STATION);
1164 CMD(add_mpath, NEW_MPATH);
1165 CMD(update_mesh_config, SET_MESH_CONFIG);
1166 CMD(change_bss, SET_BSS);
1167 CMD(auth, AUTHENTICATE);
1168 CMD(assoc, ASSOCIATE);
1169 CMD(deauth, DEAUTHENTICATE);
1170 CMD(disassoc, DISASSOCIATE);
1171 CMD(join_ibss, JOIN_IBSS);
1172 CMD(join_mesh, JOIN_MESH);
1173 CMD(set_pmksa, SET_PMKSA);
1174 CMD(del_pmksa, DEL_PMKSA);
1175 CMD(flush_pmksa, FLUSH_PMKSA);
1176 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1177 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1178 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1179 CMD(mgmt_tx, FRAME);
1180 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1181 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1183 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1184 goto nla_put_failure;
1186 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1187 dev->ops->join_mesh) {
1189 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1190 goto nla_put_failure;
1192 CMD(set_wds_peer, SET_WDS_PEER);
1193 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1194 CMD(tdls_mgmt, TDLS_MGMT);
1195 CMD(tdls_oper, TDLS_OPER);
1197 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1198 CMD(sched_scan_start, START_SCHED_SCAN);
1199 CMD(probe_client, PROBE_CLIENT);
1200 CMD(set_noack_map, SET_NOACK_MAP);
1201 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1203 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1204 goto nla_put_failure;
1206 CMD(start_p2p_device, START_P2P_DEVICE);
1207 CMD(set_mcast_rate, SET_MCAST_RATE);
1209 #ifdef CONFIG_NL80211_TESTMODE
1210 CMD(testmode_cmd, TESTMODE);
1215 if (dev->ops->connect || dev->ops->auth) {
1217 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1218 goto nla_put_failure;
1221 if (dev->ops->disconnect || dev->ops->deauth) {
1223 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1224 goto nla_put_failure;
1227 nla_nest_end(msg, nl_cmds);
1229 if (dev->ops->remain_on_channel &&
1230 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1231 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1232 dev->wiphy.max_remain_on_channel_duration))
1233 goto nla_put_failure;
1235 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1236 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1237 goto nla_put_failure;
1241 struct nlattr *nl_ftypes, *nl_ifs;
1242 enum nl80211_iftype ift;
1244 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1246 goto nla_put_failure;
1248 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1249 nl_ftypes = nla_nest_start(msg, ift);
1251 goto nla_put_failure;
1253 stypes = mgmt_stypes[ift].tx;
1256 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1257 (i << 4) | IEEE80211_FTYPE_MGMT))
1258 goto nla_put_failure;
1262 nla_nest_end(msg, nl_ftypes);
1265 nla_nest_end(msg, nl_ifs);
1267 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1269 goto nla_put_failure;
1271 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1272 nl_ftypes = nla_nest_start(msg, ift);
1274 goto nla_put_failure;
1276 stypes = mgmt_stypes[ift].rx;
1279 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1280 (i << 4) | IEEE80211_FTYPE_MGMT))
1281 goto nla_put_failure;
1285 nla_nest_end(msg, nl_ftypes);
1287 nla_nest_end(msg, nl_ifs);
1291 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1292 struct nlattr *nl_wowlan;
1294 nl_wowlan = nla_nest_start(msg,
1295 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1297 goto nla_put_failure;
1299 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1301 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1303 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1305 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1307 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1309 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1310 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1311 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1312 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1313 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1314 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1315 goto nla_put_failure;
1316 if (dev->wiphy.wowlan.n_patterns) {
1317 struct nl80211_wowlan_pattern_support pat = {
1318 .max_patterns = dev->wiphy.wowlan.n_patterns,
1320 dev->wiphy.wowlan.pattern_min_len,
1322 dev->wiphy.wowlan.pattern_max_len,
1324 dev->wiphy.wowlan.max_pkt_offset,
1326 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1328 goto nla_put_failure;
1331 if (nl80211_send_wowlan_tcp_caps(dev, msg))
1332 goto nla_put_failure;
1334 nla_nest_end(msg, nl_wowlan);
1338 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1339 dev->wiphy.software_iftypes))
1340 goto nla_put_failure;
1342 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1343 goto nla_put_failure;
1345 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1346 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1347 dev->wiphy.ap_sme_capa))
1348 goto nla_put_failure;
1350 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1351 dev->wiphy.features))
1352 goto nla_put_failure;
1354 if (dev->wiphy.ht_capa_mod_mask &&
1355 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1356 sizeof(*dev->wiphy.ht_capa_mod_mask),
1357 dev->wiphy.ht_capa_mod_mask))
1358 goto nla_put_failure;
1360 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1361 dev->wiphy.max_acl_mac_addrs &&
1362 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1363 dev->wiphy.max_acl_mac_addrs))
1364 goto nla_put_failure;
1366 return genlmsg_end(msg, hdr);
1369 genlmsg_cancel(msg, hdr);
1373 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1376 int start = cb->args[0];
1377 struct cfg80211_registered_device *dev;
1379 mutex_lock(&cfg80211_mutex);
1380 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1381 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1385 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1386 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1392 mutex_unlock(&cfg80211_mutex);
1399 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1401 struct sk_buff *msg;
1402 struct cfg80211_registered_device *dev = info->user_ptr[0];
1404 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1408 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
1413 return genlmsg_reply(msg, info);
1416 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1417 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1418 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1419 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1420 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1421 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1424 static int parse_txq_params(struct nlattr *tb[],
1425 struct ieee80211_txq_params *txq_params)
1427 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1428 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1429 !tb[NL80211_TXQ_ATTR_AIFS])
1432 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1433 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1434 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1435 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1436 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1438 if (txq_params->ac >= NL80211_NUM_ACS)
1444 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1447 * You can only set the channel explicitly for WDS interfaces,
1448 * all others have their channel managed via their respective
1449 * "establish a connection" command (connect, join, ...)
1451 * For AP/GO and mesh mode, the channel can be set with the
1452 * channel userspace API, but is only stored and passed to the
1453 * low-level driver when the AP starts or the mesh is joined.
1454 * This is for backward compatibility, userspace can also give
1455 * the channel in the start-ap or join-mesh commands instead.
1457 * Monitors are special as they are normally slaved to
1458 * whatever else is going on, so they have their own special
1459 * operation to set the monitor channel if possible.
1462 wdev->iftype == NL80211_IFTYPE_AP ||
1463 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1464 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1465 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1468 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1469 struct genl_info *info,
1470 struct cfg80211_chan_def *chandef)
1474 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1477 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1479 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1480 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1481 chandef->center_freq1 = control_freq;
1482 chandef->center_freq2 = 0;
1484 /* Primary channel not allowed */
1485 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1488 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1489 enum nl80211_channel_type chantype;
1491 chantype = nla_get_u32(
1492 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1495 case NL80211_CHAN_NO_HT:
1496 case NL80211_CHAN_HT20:
1497 case NL80211_CHAN_HT40PLUS:
1498 case NL80211_CHAN_HT40MINUS:
1499 cfg80211_chandef_create(chandef, chandef->chan,
1505 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1507 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1508 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1509 chandef->center_freq1 =
1511 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1512 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1513 chandef->center_freq2 =
1515 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1518 if (!cfg80211_chandef_valid(chandef))
1521 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1522 IEEE80211_CHAN_DISABLED))
1528 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1529 struct wireless_dev *wdev,
1530 struct genl_info *info)
1532 struct cfg80211_chan_def chandef;
1534 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1537 iftype = wdev->iftype;
1539 if (!nl80211_can_set_dev_channel(wdev))
1542 result = nl80211_parse_chandef(rdev, info, &chandef);
1546 mutex_lock(&rdev->devlist_mtx);
1548 case NL80211_IFTYPE_AP:
1549 case NL80211_IFTYPE_P2P_GO:
1550 if (wdev->beacon_interval) {
1554 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1558 wdev->preset_chandef = chandef;
1561 case NL80211_IFTYPE_MESH_POINT:
1562 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1564 case NL80211_IFTYPE_MONITOR:
1565 result = cfg80211_set_monitor_channel(rdev, &chandef);
1570 mutex_unlock(&rdev->devlist_mtx);
1575 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1578 struct net_device *netdev = info->user_ptr[1];
1580 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1583 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1586 struct net_device *dev = info->user_ptr[1];
1587 struct wireless_dev *wdev = dev->ieee80211_ptr;
1590 if (!info->attrs[NL80211_ATTR_MAC])
1593 if (netif_running(dev))
1596 if (!rdev->ops->set_wds_peer)
1599 if (wdev->iftype != NL80211_IFTYPE_WDS)
1602 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1603 return rdev_set_wds_peer(rdev, dev, bssid);
1607 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1609 struct cfg80211_registered_device *rdev;
1610 struct net_device *netdev = NULL;
1611 struct wireless_dev *wdev;
1612 int result = 0, rem_txq_params = 0;
1613 struct nlattr *nl_txq_params;
1615 u8 retry_short = 0, retry_long = 0;
1616 u32 frag_threshold = 0, rts_threshold = 0;
1617 u8 coverage_class = 0;
1620 * Try to find the wiphy and netdev. Normally this
1621 * function shouldn't need the netdev, but this is
1622 * done for backward compatibility -- previously
1623 * setting the channel was done per wiphy, but now
1624 * it is per netdev. Previous userland like hostapd
1625 * also passed a netdev to set_wiphy, so that it is
1626 * possible to let that go to the right netdev!
1628 mutex_lock(&cfg80211_mutex);
1630 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1631 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1633 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1634 if (netdev && netdev->ieee80211_ptr) {
1635 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1636 mutex_lock(&rdev->mtx);
1642 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1645 mutex_unlock(&cfg80211_mutex);
1646 return PTR_ERR(rdev);
1652 mutex_lock(&rdev->mtx);
1654 wdev = netdev->ieee80211_ptr;
1657 * end workaround code, by now the rdev is available
1658 * and locked, and wdev may or may not be NULL.
1661 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1662 result = cfg80211_dev_rename(
1663 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1665 mutex_unlock(&cfg80211_mutex);
1670 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1671 struct ieee80211_txq_params txq_params;
1672 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1674 if (!rdev->ops->set_txq_params) {
1675 result = -EOPNOTSUPP;
1684 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1685 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1690 if (!netif_running(netdev)) {
1695 nla_for_each_nested(nl_txq_params,
1696 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1698 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1699 nla_data(nl_txq_params),
1700 nla_len(nl_txq_params),
1702 result = parse_txq_params(tb, &txq_params);
1706 result = rdev_set_txq_params(rdev, netdev,
1713 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1714 result = __nl80211_set_channel(rdev,
1715 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1721 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1722 struct wireless_dev *txp_wdev = wdev;
1723 enum nl80211_tx_power_setting type;
1726 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1729 if (!rdev->ops->set_tx_power) {
1730 result = -EOPNOTSUPP;
1734 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1735 type = nla_get_u32(info->attrs[idx]);
1737 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1738 (type != NL80211_TX_POWER_AUTOMATIC)) {
1743 if (type != NL80211_TX_POWER_AUTOMATIC) {
1744 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1745 mbm = nla_get_u32(info->attrs[idx]);
1748 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1753 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1754 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1756 if ((!rdev->wiphy.available_antennas_tx &&
1757 !rdev->wiphy.available_antennas_rx) ||
1758 !rdev->ops->set_antenna) {
1759 result = -EOPNOTSUPP;
1763 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1764 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1766 /* reject antenna configurations which don't match the
1767 * available antenna masks, except for the "all" mask */
1768 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1769 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1774 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1775 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1777 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
1784 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1785 retry_short = nla_get_u8(
1786 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1787 if (retry_short == 0) {
1791 changed |= WIPHY_PARAM_RETRY_SHORT;
1794 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1795 retry_long = nla_get_u8(
1796 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1797 if (retry_long == 0) {
1801 changed |= WIPHY_PARAM_RETRY_LONG;
1804 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1805 frag_threshold = nla_get_u32(
1806 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1807 if (frag_threshold < 256) {
1811 if (frag_threshold != (u32) -1) {
1813 * Fragments (apart from the last one) are required to
1814 * have even length. Make the fragmentation code
1815 * simpler by stripping LSB should someone try to use
1816 * odd threshold value.
1818 frag_threshold &= ~0x1;
1820 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1823 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1824 rts_threshold = nla_get_u32(
1825 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1826 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1829 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1830 coverage_class = nla_get_u8(
1831 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1832 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1836 u8 old_retry_short, old_retry_long;
1837 u32 old_frag_threshold, old_rts_threshold;
1838 u8 old_coverage_class;
1840 if (!rdev->ops->set_wiphy_params) {
1841 result = -EOPNOTSUPP;
1845 old_retry_short = rdev->wiphy.retry_short;
1846 old_retry_long = rdev->wiphy.retry_long;
1847 old_frag_threshold = rdev->wiphy.frag_threshold;
1848 old_rts_threshold = rdev->wiphy.rts_threshold;
1849 old_coverage_class = rdev->wiphy.coverage_class;
1851 if (changed & WIPHY_PARAM_RETRY_SHORT)
1852 rdev->wiphy.retry_short = retry_short;
1853 if (changed & WIPHY_PARAM_RETRY_LONG)
1854 rdev->wiphy.retry_long = retry_long;
1855 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1856 rdev->wiphy.frag_threshold = frag_threshold;
1857 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1858 rdev->wiphy.rts_threshold = rts_threshold;
1859 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1860 rdev->wiphy.coverage_class = coverage_class;
1862 result = rdev_set_wiphy_params(rdev, changed);
1864 rdev->wiphy.retry_short = old_retry_short;
1865 rdev->wiphy.retry_long = old_retry_long;
1866 rdev->wiphy.frag_threshold = old_frag_threshold;
1867 rdev->wiphy.rts_threshold = old_rts_threshold;
1868 rdev->wiphy.coverage_class = old_coverage_class;
1873 mutex_unlock(&rdev->mtx);
1879 static inline u64 wdev_id(struct wireless_dev *wdev)
1881 return (u64)wdev->identifier |
1882 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1885 static int nl80211_send_chandef(struct sk_buff *msg,
1886 struct cfg80211_chan_def *chandef)
1888 WARN_ON(!cfg80211_chandef_valid(chandef));
1890 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1891 chandef->chan->center_freq))
1893 switch (chandef->width) {
1894 case NL80211_CHAN_WIDTH_20_NOHT:
1895 case NL80211_CHAN_WIDTH_20:
1896 case NL80211_CHAN_WIDTH_40:
1897 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1898 cfg80211_get_chandef_type(chandef)))
1904 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1906 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1908 if (chandef->center_freq2 &&
1909 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
1914 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
1915 struct cfg80211_registered_device *rdev,
1916 struct wireless_dev *wdev)
1918 struct net_device *dev = wdev->netdev;
1921 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1926 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1927 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
1928 goto nla_put_failure;
1930 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1931 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1932 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1933 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
1934 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1935 rdev->devlist_generation ^
1936 (cfg80211_rdev_list_generation << 2)))
1937 goto nla_put_failure;
1939 if (rdev->ops->get_channel) {
1941 struct cfg80211_chan_def chandef;
1943 ret = rdev_get_channel(rdev, wdev, &chandef);
1945 if (nl80211_send_chandef(msg, &chandef))
1946 goto nla_put_failure;
1950 if (wdev->ssid_len) {
1951 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1952 goto nla_put_failure;
1955 return genlmsg_end(msg, hdr);
1958 genlmsg_cancel(msg, hdr);
1962 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1966 int wp_start = cb->args[0];
1967 int if_start = cb->args[1];
1968 struct cfg80211_registered_device *rdev;
1969 struct wireless_dev *wdev;
1971 mutex_lock(&cfg80211_mutex);
1972 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1973 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1975 if (wp_idx < wp_start) {
1981 mutex_lock(&rdev->devlist_mtx);
1982 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1983 if (if_idx < if_start) {
1987 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
1988 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1990 mutex_unlock(&rdev->devlist_mtx);
1995 mutex_unlock(&rdev->devlist_mtx);
2000 mutex_unlock(&cfg80211_mutex);
2002 cb->args[0] = wp_idx;
2003 cb->args[1] = if_idx;
2008 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2010 struct sk_buff *msg;
2011 struct cfg80211_registered_device *dev = info->user_ptr[0];
2012 struct wireless_dev *wdev = info->user_ptr[1];
2014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2018 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2024 return genlmsg_reply(msg, info);
2027 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2028 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2029 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2030 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2031 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2032 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2035 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2037 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2045 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2046 nla, mntr_flags_policy))
2049 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2051 *mntrflags |= (1<<flag);
2056 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2057 struct net_device *netdev, u8 use_4addr,
2058 enum nl80211_iftype iftype)
2061 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2067 case NL80211_IFTYPE_AP_VLAN:
2068 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2071 case NL80211_IFTYPE_STATION:
2072 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2082 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2085 struct vif_params params;
2087 enum nl80211_iftype otype, ntype;
2088 struct net_device *dev = info->user_ptr[1];
2089 u32 _flags, *flags = NULL;
2090 bool change = false;
2092 memset(¶ms, 0, sizeof(params));
2094 otype = ntype = dev->ieee80211_ptr->iftype;
2096 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2097 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2100 if (ntype > NL80211_IFTYPE_MAX)
2104 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2105 struct wireless_dev *wdev = dev->ieee80211_ptr;
2107 if (ntype != NL80211_IFTYPE_MESH_POINT)
2109 if (netif_running(dev))
2113 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2114 IEEE80211_MAX_MESH_ID_LEN);
2115 wdev->mesh_id_up_len =
2116 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2117 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2118 wdev->mesh_id_up_len);
2122 if (info->attrs[NL80211_ATTR_4ADDR]) {
2123 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2125 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2129 params.use_4addr = -1;
2132 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2133 if (ntype != NL80211_IFTYPE_MONITOR)
2135 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2145 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2149 if (!err && params.use_4addr != -1)
2150 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2155 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2158 struct vif_params params;
2159 struct wireless_dev *wdev;
2160 struct sk_buff *msg;
2162 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2165 memset(¶ms, 0, sizeof(params));
2167 if (!info->attrs[NL80211_ATTR_IFNAME])
2170 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2171 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2172 if (type > NL80211_IFTYPE_MAX)
2176 if (!rdev->ops->add_virtual_intf ||
2177 !(rdev->wiphy.interface_modes & (1 << type)))
2180 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2181 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2183 if (!is_valid_ether_addr(params.macaddr))
2184 return -EADDRNOTAVAIL;
2187 if (info->attrs[NL80211_ATTR_4ADDR]) {
2188 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2189 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2194 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2198 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2199 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2201 wdev = rdev_add_virtual_intf(rdev,
2202 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2203 type, err ? NULL : &flags, ¶ms);
2206 return PTR_ERR(wdev);
2210 case NL80211_IFTYPE_MESH_POINT:
2211 if (!info->attrs[NL80211_ATTR_MESH_ID])
2214 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2215 IEEE80211_MAX_MESH_ID_LEN);
2216 wdev->mesh_id_up_len =
2217 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2218 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2219 wdev->mesh_id_up_len);
2222 case NL80211_IFTYPE_P2P_DEVICE:
2224 * P2P Device doesn't have a netdev, so doesn't go
2225 * through the netdev notifier and must be added here
2227 mutex_init(&wdev->mtx);
2228 INIT_LIST_HEAD(&wdev->event_list);
2229 spin_lock_init(&wdev->event_lock);
2230 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2231 spin_lock_init(&wdev->mgmt_registrations_lock);
2233 mutex_lock(&rdev->devlist_mtx);
2234 wdev->identifier = ++rdev->wdev_id;
2235 list_add_rcu(&wdev->list, &rdev->wdev_list);
2236 rdev->devlist_generation++;
2237 mutex_unlock(&rdev->devlist_mtx);
2243 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2249 return genlmsg_reply(msg, info);
2252 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2255 struct wireless_dev *wdev = info->user_ptr[1];
2257 if (!rdev->ops->del_virtual_intf)
2261 * If we remove a wireless device without a netdev then clear
2262 * user_ptr[1] so that nl80211_post_doit won't dereference it
2263 * to check if it needs to do dev_put(). Otherwise it crashes
2264 * since the wdev has been freed, unlike with a netdev where
2265 * we need the dev_put() for the netdev to really be freed.
2268 info->user_ptr[1] = NULL;
2270 return rdev_del_virtual_intf(rdev, wdev);
2273 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2276 struct net_device *dev = info->user_ptr[1];
2279 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2282 if (!rdev->ops->set_noack_map)
2285 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2287 return rdev_set_noack_map(rdev, dev, noack_map);
2290 struct get_key_cookie {
2291 struct sk_buff *msg;
2296 static void get_key_callback(void *c, struct key_params *params)
2299 struct get_key_cookie *cookie = c;
2302 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2303 params->key_len, params->key)) ||
2305 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2306 params->seq_len, params->seq)) ||
2308 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2310 goto nla_put_failure;
2312 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2314 goto nla_put_failure;
2317 nla_put(cookie->msg, NL80211_KEY_DATA,
2318 params->key_len, params->key)) ||
2320 nla_put(cookie->msg, NL80211_KEY_SEQ,
2321 params->seq_len, params->seq)) ||
2323 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2325 goto nla_put_failure;
2327 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2328 goto nla_put_failure;
2330 nla_nest_end(cookie->msg, key);
2337 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2339 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2341 struct net_device *dev = info->user_ptr[1];
2343 const u8 *mac_addr = NULL;
2345 struct get_key_cookie cookie = {
2349 struct sk_buff *msg;
2351 if (info->attrs[NL80211_ATTR_KEY_IDX])
2352 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2357 if (info->attrs[NL80211_ATTR_MAC])
2358 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2360 pairwise = !!mac_addr;
2361 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2362 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2363 if (kt >= NUM_NL80211_KEYTYPES)
2365 if (kt != NL80211_KEYTYPE_GROUP &&
2366 kt != NL80211_KEYTYPE_PAIRWISE)
2368 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2371 if (!rdev->ops->get_key)
2374 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2378 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2379 NL80211_CMD_NEW_KEY);
2381 return PTR_ERR(hdr);
2384 cookie.idx = key_idx;
2386 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2387 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2388 goto nla_put_failure;
2390 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2391 goto nla_put_failure;
2393 if (pairwise && mac_addr &&
2394 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2397 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2404 goto nla_put_failure;
2406 genlmsg_end(msg, hdr);
2407 return genlmsg_reply(msg, info);
2416 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2419 struct key_parse key;
2421 struct net_device *dev = info->user_ptr[1];
2423 err = nl80211_parse_key(info, &key);
2430 /* only support setting default key */
2431 if (!key.def && !key.defmgmt)
2434 wdev_lock(dev->ieee80211_ptr);
2437 if (!rdev->ops->set_default_key) {
2442 err = nl80211_key_allowed(dev->ieee80211_ptr);
2446 err = rdev_set_default_key(rdev, dev, key.idx,
2447 key.def_uni, key.def_multi);
2452 #ifdef CONFIG_CFG80211_WEXT
2453 dev->ieee80211_ptr->wext.default_key = key.idx;
2456 if (key.def_uni || !key.def_multi) {
2461 if (!rdev->ops->set_default_mgmt_key) {
2466 err = nl80211_key_allowed(dev->ieee80211_ptr);
2470 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2474 #ifdef CONFIG_CFG80211_WEXT
2475 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2480 wdev_unlock(dev->ieee80211_ptr);
2485 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2489 struct net_device *dev = info->user_ptr[1];
2490 struct key_parse key;
2491 const u8 *mac_addr = NULL;
2493 err = nl80211_parse_key(info, &key);
2500 if (info->attrs[NL80211_ATTR_MAC])
2501 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2503 if (key.type == -1) {
2505 key.type = NL80211_KEYTYPE_PAIRWISE;
2507 key.type = NL80211_KEYTYPE_GROUP;
2511 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2512 key.type != NL80211_KEYTYPE_GROUP)
2515 if (!rdev->ops->add_key)
2518 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2519 key.type == NL80211_KEYTYPE_PAIRWISE,
2523 wdev_lock(dev->ieee80211_ptr);
2524 err = nl80211_key_allowed(dev->ieee80211_ptr);
2526 err = rdev_add_key(rdev, dev, key.idx,
2527 key.type == NL80211_KEYTYPE_PAIRWISE,
2529 wdev_unlock(dev->ieee80211_ptr);
2534 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2536 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2538 struct net_device *dev = info->user_ptr[1];
2539 u8 *mac_addr = NULL;
2540 struct key_parse key;
2542 err = nl80211_parse_key(info, &key);
2546 if (info->attrs[NL80211_ATTR_MAC])
2547 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2549 if (key.type == -1) {
2551 key.type = NL80211_KEYTYPE_PAIRWISE;
2553 key.type = NL80211_KEYTYPE_GROUP;
2557 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2558 key.type != NL80211_KEYTYPE_GROUP)
2561 if (!rdev->ops->del_key)
2564 wdev_lock(dev->ieee80211_ptr);
2565 err = nl80211_key_allowed(dev->ieee80211_ptr);
2567 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2568 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2572 err = rdev_del_key(rdev, dev, key.idx,
2573 key.type == NL80211_KEYTYPE_PAIRWISE,
2576 #ifdef CONFIG_CFG80211_WEXT
2578 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2579 dev->ieee80211_ptr->wext.default_key = -1;
2580 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2581 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2584 wdev_unlock(dev->ieee80211_ptr);
2589 /* This function returns an error or the number of nested attributes */
2590 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2592 struct nlattr *attr;
2593 int n_entries = 0, tmp;
2595 nla_for_each_nested(attr, nl_attr, tmp) {
2596 if (nla_len(attr) != ETH_ALEN)
2606 * This function parses ACL information and allocates memory for ACL data.
2607 * On successful return, the calling function is responsible to free the
2608 * ACL buffer returned by this function.
2610 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2611 struct genl_info *info)
2613 enum nl80211_acl_policy acl_policy;
2614 struct nlattr *attr;
2615 struct cfg80211_acl_data *acl;
2616 int i = 0, n_entries, tmp;
2618 if (!wiphy->max_acl_mac_addrs)
2619 return ERR_PTR(-EOPNOTSUPP);
2621 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2622 return ERR_PTR(-EINVAL);
2624 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2625 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2626 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2627 return ERR_PTR(-EINVAL);
2629 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2630 return ERR_PTR(-EINVAL);
2632 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2634 return ERR_PTR(n_entries);
2636 if (n_entries > wiphy->max_acl_mac_addrs)
2637 return ERR_PTR(-ENOTSUPP);
2639 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2642 return ERR_PTR(-ENOMEM);
2644 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2645 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2649 acl->n_acl_entries = n_entries;
2650 acl->acl_policy = acl_policy;
2655 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2657 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2658 struct net_device *dev = info->user_ptr[1];
2659 struct cfg80211_acl_data *acl;
2662 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2663 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2666 if (!dev->ieee80211_ptr->beacon_interval)
2669 acl = parse_acl_data(&rdev->wiphy, info);
2671 return PTR_ERR(acl);
2673 err = rdev_set_mac_acl(rdev, dev, acl);
2680 static int nl80211_parse_beacon(struct genl_info *info,
2681 struct cfg80211_beacon_data *bcn)
2683 bool haveinfo = false;
2685 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2686 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2687 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2688 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2691 memset(bcn, 0, sizeof(*bcn));
2693 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2694 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2695 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2701 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2702 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2704 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2711 if (info->attrs[NL80211_ATTR_IE]) {
2712 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2713 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2716 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2717 bcn->proberesp_ies =
2718 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2719 bcn->proberesp_ies_len =
2720 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2723 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2724 bcn->assocresp_ies =
2725 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2726 bcn->assocresp_ies_len =
2727 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2730 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2732 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2733 bcn->probe_resp_len =
2734 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2740 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2741 struct cfg80211_ap_settings *params)
2743 struct wireless_dev *wdev;
2746 mutex_lock(&rdev->devlist_mtx);
2748 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2749 if (wdev->iftype != NL80211_IFTYPE_AP &&
2750 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2753 if (!wdev->preset_chandef.chan)
2756 params->chandef = wdev->preset_chandef;
2761 mutex_unlock(&rdev->devlist_mtx);
2766 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2767 enum nl80211_auth_type auth_type,
2768 enum nl80211_commands cmd)
2770 if (auth_type > NL80211_AUTHTYPE_MAX)
2774 case NL80211_CMD_AUTHENTICATE:
2775 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2776 auth_type == NL80211_AUTHTYPE_SAE)
2779 case NL80211_CMD_CONNECT:
2780 case NL80211_CMD_START_AP:
2781 /* SAE not supported yet */
2782 if (auth_type == NL80211_AUTHTYPE_SAE)
2790 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2792 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2793 struct net_device *dev = info->user_ptr[1];
2794 struct wireless_dev *wdev = dev->ieee80211_ptr;
2795 struct cfg80211_ap_settings params;
2797 u8 radar_detect_width = 0;
2799 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2800 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2803 if (!rdev->ops->start_ap)
2806 if (wdev->beacon_interval)
2809 memset(¶ms, 0, sizeof(params));
2811 /* these are required for START_AP */
2812 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2813 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2814 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2817 err = nl80211_parse_beacon(info, ¶ms.beacon);
2821 params.beacon_interval =
2822 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2823 params.dtim_period =
2824 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2826 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2831 * In theory, some of these attributes should be required here
2832 * but since they were not used when the command was originally
2833 * added, keep them optional for old user space programs to let
2834 * them continue to work with drivers that do not need the
2835 * additional information -- drivers must check!
2837 if (info->attrs[NL80211_ATTR_SSID]) {
2838 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2840 nla_len(info->attrs[NL80211_ATTR_SSID]);
2841 if (params.ssid_len == 0 ||
2842 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2846 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2847 params.hidden_ssid = nla_get_u32(
2848 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2849 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2850 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2851 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2855 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2857 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2858 params.auth_type = nla_get_u32(
2859 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2860 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2861 NL80211_CMD_START_AP))
2864 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2866 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2867 NL80211_MAX_NR_CIPHER_SUITES);
2871 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2872 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2874 params.inactivity_timeout = nla_get_u16(
2875 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2878 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2879 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2881 params.p2p_ctwindow =
2882 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2883 if (params.p2p_ctwindow > 127)
2885 if (params.p2p_ctwindow != 0 &&
2886 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2890 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2893 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2895 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2898 params.p2p_opp_ps = tmp;
2899 if (params.p2p_opp_ps != 0 &&
2900 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2904 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2905 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
2908 } else if (wdev->preset_chandef.chan) {
2909 params.chandef = wdev->preset_chandef;
2910 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2913 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
2916 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
2920 radar_detect_width = BIT(params.chandef.width);
2921 params.radar_required = true;
2924 mutex_lock(&rdev->devlist_mtx);
2925 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
2926 params.chandef.chan,
2928 radar_detect_width);
2929 mutex_unlock(&rdev->devlist_mtx);
2934 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
2935 params.acl = parse_acl_data(&rdev->wiphy, info);
2936 if (IS_ERR(params.acl))
2937 return PTR_ERR(params.acl);
2940 err = rdev_start_ap(rdev, dev, ¶ms);
2942 wdev->preset_chandef = params.chandef;
2943 wdev->beacon_interval = params.beacon_interval;
2944 wdev->channel = params.chandef.chan;
2945 wdev->ssid_len = params.ssid_len;
2946 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
2954 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2957 struct net_device *dev = info->user_ptr[1];
2958 struct wireless_dev *wdev = dev->ieee80211_ptr;
2959 struct cfg80211_beacon_data params;
2962 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2963 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2966 if (!rdev->ops->change_beacon)
2969 if (!wdev->beacon_interval)
2972 err = nl80211_parse_beacon(info, ¶ms);
2976 return rdev_change_beacon(rdev, dev, ¶ms);
2979 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2982 struct net_device *dev = info->user_ptr[1];
2984 return cfg80211_stop_ap(rdev, dev);
2987 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2988 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2989 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2990 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2991 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2992 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2993 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2996 static int parse_station_flags(struct genl_info *info,
2997 enum nl80211_iftype iftype,
2998 struct station_parameters *params)
3000 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3005 * Try parsing the new attribute first so userspace
3006 * can specify both for older kernels.
3008 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3010 struct nl80211_sta_flag_update *sta_flags;
3012 sta_flags = nla_data(nla);
3013 params->sta_flags_mask = sta_flags->mask;
3014 params->sta_flags_set = sta_flags->set;
3015 if ((params->sta_flags_mask |
3016 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3021 /* if present, parse the old attribute */
3023 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3027 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3028 nla, sta_flags_policy))
3032 * Only allow certain flags for interface types so that
3033 * other attributes are silently ignored. Remember that
3034 * this is backward compatibility code with old userspace
3035 * and shouldn't be hit in other cases anyway.
3038 case NL80211_IFTYPE_AP:
3039 case NL80211_IFTYPE_AP_VLAN:
3040 case NL80211_IFTYPE_P2P_GO:
3041 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3042 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3043 BIT(NL80211_STA_FLAG_WME) |
3044 BIT(NL80211_STA_FLAG_MFP);
3046 case NL80211_IFTYPE_P2P_CLIENT:
3047 case NL80211_IFTYPE_STATION:
3048 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3049 BIT(NL80211_STA_FLAG_TDLS_PEER);
3051 case NL80211_IFTYPE_MESH_POINT:
3052 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3053 BIT(NL80211_STA_FLAG_MFP) |
3054 BIT(NL80211_STA_FLAG_AUTHORIZED);
3059 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3061 params->sta_flags_set |= (1<<flag);
3063 /* no longer support new API additions in old API */
3064 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3072 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3075 struct nlattr *rate;
3079 rate = nla_nest_start(msg, attr);
3083 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3084 bitrate = cfg80211_calculate_bitrate(info);
3085 /* report 16-bit bitrate only if we can */
3086 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3088 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3090 if (bitrate_compat > 0 &&
3091 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3094 if (info->flags & RATE_INFO_FLAGS_MCS) {
3095 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3097 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3098 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3100 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3101 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3103 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3104 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3106 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3108 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3109 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3111 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3112 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3114 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3115 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3117 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3118 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3120 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3121 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3125 nla_nest_end(msg, rate);
3129 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3131 struct cfg80211_registered_device *rdev,
3132 struct net_device *dev,
3133 const u8 *mac_addr, struct station_info *sinfo)
3136 struct nlattr *sinfoattr, *bss_param;
3138 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3142 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3143 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3144 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3145 goto nla_put_failure;
3147 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3149 goto nla_put_failure;
3150 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3151 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3152 sinfo->connected_time))
3153 goto nla_put_failure;
3154 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3155 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3156 sinfo->inactive_time))
3157 goto nla_put_failure;
3158 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3159 STATION_INFO_RX_BYTES64)) &&
3160 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3161 (u32)sinfo->rx_bytes))
3162 goto nla_put_failure;
3163 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3164 NL80211_STA_INFO_TX_BYTES64)) &&
3165 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3166 (u32)sinfo->tx_bytes))
3167 goto nla_put_failure;
3168 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3169 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3171 goto nla_put_failure;
3172 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3173 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3175 goto nla_put_failure;
3176 if ((sinfo->filled & STATION_INFO_LLID) &&
3177 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3178 goto nla_put_failure;
3179 if ((sinfo->filled & STATION_INFO_PLID) &&
3180 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3181 goto nla_put_failure;
3182 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3183 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3184 sinfo->plink_state))
3185 goto nla_put_failure;
3186 switch (rdev->wiphy.signal_type) {
3187 case CFG80211_SIGNAL_TYPE_MBM:
3188 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3189 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3191 goto nla_put_failure;
3192 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3193 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3195 goto nla_put_failure;
3200 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3201 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3202 NL80211_STA_INFO_TX_BITRATE))
3203 goto nla_put_failure;
3205 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3206 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3207 NL80211_STA_INFO_RX_BITRATE))
3208 goto nla_put_failure;
3210 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3211 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3213 goto nla_put_failure;
3214 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3215 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3217 goto nla_put_failure;
3218 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3219 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3221 goto nla_put_failure;
3222 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3223 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3225 goto nla_put_failure;
3226 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3227 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3228 sinfo->beacon_loss_count))
3229 goto nla_put_failure;
3230 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3231 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3233 goto nla_put_failure;
3234 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3235 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3237 goto nla_put_failure;
3238 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3239 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3241 goto nla_put_failure;
3242 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3243 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3245 goto nla_put_failure;
3247 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3248 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3249 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3250 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3251 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3252 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3253 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3254 sinfo->bss_param.dtim_period) ||
3255 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3256 sinfo->bss_param.beacon_interval))
3257 goto nla_put_failure;
3259 nla_nest_end(msg, bss_param);
3261 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3262 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3263 sizeof(struct nl80211_sta_flag_update),
3265 goto nla_put_failure;
3266 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3267 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3269 goto nla_put_failure;
3270 nla_nest_end(msg, sinfoattr);
3272 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3273 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3274 sinfo->assoc_req_ies))
3275 goto nla_put_failure;
3277 return genlmsg_end(msg, hdr);
3280 genlmsg_cancel(msg, hdr);
3284 static int nl80211_dump_station(struct sk_buff *skb,
3285 struct netlink_callback *cb)
3287 struct station_info sinfo;
3288 struct cfg80211_registered_device *dev;
3289 struct net_device *netdev;
3290 u8 mac_addr[ETH_ALEN];
3291 int sta_idx = cb->args[1];
3294 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3298 if (!dev->ops->dump_station) {
3304 memset(&sinfo, 0, sizeof(sinfo));
3305 err = rdev_dump_station(dev, netdev, sta_idx,
3312 if (nl80211_send_station(skb,
3313 NETLINK_CB(cb->skb).portid,
3314 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3315 dev, netdev, mac_addr,
3324 cb->args[1] = sta_idx;
3327 nl80211_finish_netdev_dump(dev);
3332 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3334 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3335 struct net_device *dev = info->user_ptr[1];
3336 struct station_info sinfo;
3337 struct sk_buff *msg;
3338 u8 *mac_addr = NULL;
3341 memset(&sinfo, 0, sizeof(sinfo));
3343 if (!info->attrs[NL80211_ATTR_MAC])
3346 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3348 if (!rdev->ops->get_station)
3351 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3355 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3359 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3360 rdev, dev, mac_addr, &sinfo) < 0) {
3365 return genlmsg_reply(msg, info);
3369 * Get vlan interface making sure it is running and on the right wiphy.
3371 static struct net_device *get_vlan(struct genl_info *info,
3372 struct cfg80211_registered_device *rdev)
3374 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3375 struct net_device *v;
3381 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3383 return ERR_PTR(-ENODEV);
3385 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3390 if (!netif_running(v)) {
3398 return ERR_PTR(ret);
3401 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3405 struct net_device *dev = info->user_ptr[1];
3406 struct station_parameters params;
3407 u8 *mac_addr = NULL;
3409 memset(¶ms, 0, sizeof(params));
3411 params.listen_interval = -1;
3412 params.plink_state = -1;
3414 if (info->attrs[NL80211_ATTR_STA_AID])
3417 if (!info->attrs[NL80211_ATTR_MAC])
3420 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3422 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3423 params.supported_rates =
3424 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3425 params.supported_rates_len =
3426 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3429 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL] ||
3430 info->attrs[NL80211_ATTR_HT_CAPABILITY])
3433 if (!rdev->ops->change_station)
3436 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3439 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3440 params.plink_action =
3441 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3443 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3444 params.plink_state =
3445 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3447 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3448 enum nl80211_mesh_power_mode pm = nla_get_u32(
3449 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3451 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3452 pm > NL80211_MESH_POWER_MAX)
3455 params.local_pm = pm;
3458 switch (dev->ieee80211_ptr->iftype) {
3459 case NL80211_IFTYPE_AP:
3460 case NL80211_IFTYPE_AP_VLAN:
3461 case NL80211_IFTYPE_P2P_GO:
3462 /* disallow mesh-specific things */
3463 if (params.plink_action)
3465 if (params.local_pm)
3468 /* TDLS can't be set, ... */
3469 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3472 * ... but don't bother the driver with it. This works around
3473 * a hostapd/wpa_supplicant issue -- it always includes the
3474 * TLDS_PEER flag in the mask even for AP mode.
3476 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3478 /* accept only the listed bits */
3479 if (params.sta_flags_mask &
3480 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3481 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3482 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3483 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3484 BIT(NL80211_STA_FLAG_WME) |
3485 BIT(NL80211_STA_FLAG_MFP)))
3488 /* but authenticated/associated only if driver handles it */
3489 if (!(rdev->wiphy.features &
3490 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3491 params.sta_flags_mask &
3492 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3493 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3496 /* reject other things that can't change */
3497 if (params.supported_rates)
3500 /* must be last in here for error handling */
3501 params.vlan = get_vlan(info, rdev);
3502 if (IS_ERR(params.vlan))
3503 return PTR_ERR(params.vlan);
3505 case NL80211_IFTYPE_P2P_CLIENT:
3506 case NL80211_IFTYPE_STATION:
3508 * Don't allow userspace to change the TDLS_PEER flag,
3509 * but silently ignore attempts to change it since we
3510 * don't have state here to verify that it doesn't try
3511 * to change the flag.
3513 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3515 case NL80211_IFTYPE_ADHOC:
3516 /* disallow things sta doesn't support */
3517 if (params.plink_action)
3519 if (params.local_pm)
3521 /* reject any changes other than AUTHORIZED */
3522 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3525 case NL80211_IFTYPE_MESH_POINT:
3526 /* disallow things mesh doesn't support */
3529 if (params.supported_rates)
3532 * No special handling for TDLS here -- the userspace
3533 * mesh code doesn't have this bug.
3535 if (params.sta_flags_mask &
3536 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3537 BIT(NL80211_STA_FLAG_MFP) |
3538 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3545 /* be aware of params.vlan when changing code here */
3547 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3550 dev_put(params.vlan);
3555 static struct nla_policy
3556 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3557 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3558 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3561 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3565 struct net_device *dev = info->user_ptr[1];
3566 struct station_parameters params;
3567 u8 *mac_addr = NULL;
3569 memset(¶ms, 0, sizeof(params));
3571 if (!info->attrs[NL80211_ATTR_MAC])
3574 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3577 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3580 if (!info->attrs[NL80211_ATTR_STA_AID])
3583 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3584 params.supported_rates =
3585 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3586 params.supported_rates_len =
3587 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3588 params.listen_interval =
3589 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3591 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3592 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3595 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3597 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3599 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3601 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3603 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3604 params.plink_action =
3605 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3607 if (!rdev->ops->add_station)
3610 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3613 switch (dev->ieee80211_ptr->iftype) {
3614 case NL80211_IFTYPE_AP:
3615 case NL80211_IFTYPE_AP_VLAN:
3616 case NL80211_IFTYPE_P2P_GO:
3617 /* parse WME attributes if sta is WME capable */
3618 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3619 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3620 info->attrs[NL80211_ATTR_STA_WME]) {
3621 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3624 nla = info->attrs[NL80211_ATTR_STA_WME];
3625 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3626 nl80211_sta_wme_policy);
3630 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3631 params.uapsd_queues =
3632 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3633 if (params.uapsd_queues &
3634 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3637 if (tb[NL80211_STA_WME_MAX_SP])
3639 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3642 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3645 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3647 /* TDLS peers cannot be added */
3648 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3650 /* but don't bother the driver with it */
3651 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3653 /* allow authenticated/associated only if driver handles it */
3654 if (!(rdev->wiphy.features &
3655 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3656 params.sta_flags_mask &
3657 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3658 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3661 /* must be last in here for error handling */
3662 params.vlan = get_vlan(info, rdev);
3663 if (IS_ERR(params.vlan))
3664 return PTR_ERR(params.vlan);
3666 case NL80211_IFTYPE_MESH_POINT:
3667 /* associated is disallowed */
3668 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3670 /* TDLS peers cannot be added */
3671 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3674 case NL80211_IFTYPE_STATION:
3675 /* associated is disallowed */
3676 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3678 /* Only TDLS peers can be added */
3679 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3681 /* Can only add if TDLS ... */
3682 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3684 /* ... with external setup is supported */
3685 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3692 /* be aware of params.vlan when changing code here */
3694 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
3697 dev_put(params.vlan);
3701 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3704 struct net_device *dev = info->user_ptr[1];
3705 u8 *mac_addr = NULL;
3707 if (info->attrs[NL80211_ATTR_MAC])
3708 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3710 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3711 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3712 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3713 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3716 if (!rdev->ops->del_station)
3719 return rdev_del_station(rdev, dev, mac_addr);
3722 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
3723 int flags, struct net_device *dev,
3724 u8 *dst, u8 *next_hop,
3725 struct mpath_info *pinfo)
3728 struct nlattr *pinfoattr;
3730 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3734 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3735 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3736 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3737 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3738 goto nla_put_failure;
3740 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3742 goto nla_put_failure;
3743 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3744 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3746 goto nla_put_failure;
3747 if (((pinfo->filled & MPATH_INFO_SN) &&
3748 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3749 ((pinfo->filled & MPATH_INFO_METRIC) &&
3750 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3752 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3753 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3755 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3756 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3758 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3759 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3760 pinfo->discovery_timeout)) ||
3761 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3762 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3763 pinfo->discovery_retries)))
3764 goto nla_put_failure;
3766 nla_nest_end(msg, pinfoattr);
3768 return genlmsg_end(msg, hdr);
3771 genlmsg_cancel(msg, hdr);
3775 static int nl80211_dump_mpath(struct sk_buff *skb,
3776 struct netlink_callback *cb)
3778 struct mpath_info pinfo;
3779 struct cfg80211_registered_device *dev;
3780 struct net_device *netdev;
3782 u8 next_hop[ETH_ALEN];
3783 int path_idx = cb->args[1];
3786 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3790 if (!dev->ops->dump_mpath) {
3795 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3801 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3808 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
3809 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3810 netdev, dst, next_hop,
3819 cb->args[1] = path_idx;
3822 nl80211_finish_netdev_dump(dev);
3826 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3830 struct net_device *dev = info->user_ptr[1];
3831 struct mpath_info pinfo;
3832 struct sk_buff *msg;
3834 u8 next_hop[ETH_ALEN];
3836 memset(&pinfo, 0, sizeof(pinfo));
3838 if (!info->attrs[NL80211_ATTR_MAC])
3841 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3843 if (!rdev->ops->get_mpath)
3846 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3849 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
3853 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3857 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
3858 dev, dst, next_hop, &pinfo) < 0) {
3863 return genlmsg_reply(msg, info);
3866 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3869 struct net_device *dev = info->user_ptr[1];
3871 u8 *next_hop = NULL;
3873 if (!info->attrs[NL80211_ATTR_MAC])
3876 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3879 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3880 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3882 if (!rdev->ops->change_mpath)
3885 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3888 return rdev_change_mpath(rdev, dev, dst, next_hop);
3891 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3894 struct net_device *dev = info->user_ptr[1];
3896 u8 *next_hop = NULL;
3898 if (!info->attrs[NL80211_ATTR_MAC])
3901 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3904 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3905 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3907 if (!rdev->ops->add_mpath)
3910 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3913 return rdev_add_mpath(rdev, dev, dst, next_hop);
3916 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3919 struct net_device *dev = info->user_ptr[1];
3922 if (info->attrs[NL80211_ATTR_MAC])
3923 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3925 if (!rdev->ops->del_mpath)
3928 return rdev_del_mpath(rdev, dev, dst);
3931 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3934 struct net_device *dev = info->user_ptr[1];
3935 struct bss_parameters params;
3937 memset(¶ms, 0, sizeof(params));
3938 /* default to not changing parameters */
3939 params.use_cts_prot = -1;
3940 params.use_short_preamble = -1;
3941 params.use_short_slot_time = -1;
3942 params.ap_isolate = -1;
3943 params.ht_opmode = -1;
3944 params.p2p_ctwindow = -1;
3945 params.p2p_opp_ps = -1;
3947 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3948 params.use_cts_prot =
3949 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3950 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3951 params.use_short_preamble =
3952 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3953 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3954 params.use_short_slot_time =
3955 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3956 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3957 params.basic_rates =
3958 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3959 params.basic_rates_len =
3960 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3962 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3963 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3964 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3966 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3968 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3969 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3971 params.p2p_ctwindow =
3972 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3973 if (params.p2p_ctwindow < 0)
3975 if (params.p2p_ctwindow != 0 &&
3976 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3980 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3983 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3985 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3988 params.p2p_opp_ps = tmp;
3989 if (params.p2p_opp_ps &&
3990 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3994 if (!rdev->ops->change_bss)
3997 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3998 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4001 return rdev_change_bss(rdev, dev, ¶ms);
4004 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4005 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4006 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4007 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4008 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4009 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4010 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4013 static int parse_reg_rule(struct nlattr *tb[],
4014 struct ieee80211_reg_rule *reg_rule)
4016 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4017 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4019 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4021 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4023 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4025 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4027 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4030 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4032 freq_range->start_freq_khz =
4033 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4034 freq_range->end_freq_khz =
4035 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4036 freq_range->max_bandwidth_khz =
4037 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4039 power_rule->max_eirp =
4040 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4042 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4043 power_rule->max_antenna_gain =
4044 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4049 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4053 enum nl80211_user_reg_hint_type user_reg_hint_type;
4056 * You should only get this when cfg80211 hasn't yet initialized
4057 * completely when built-in to the kernel right between the time
4058 * window between nl80211_init() and regulatory_init(), if that is
4061 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4062 return -EINPROGRESS;
4064 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4067 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4069 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4070 user_reg_hint_type =
4071 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4073 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4075 switch (user_reg_hint_type) {
4076 case NL80211_USER_REG_HINT_USER:
4077 case NL80211_USER_REG_HINT_CELL_BASE:
4083 r = regulatory_hint_user(data, user_reg_hint_type);
4088 static int nl80211_get_mesh_config(struct sk_buff *skb,
4089 struct genl_info *info)
4091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4092 struct net_device *dev = info->user_ptr[1];
4093 struct wireless_dev *wdev = dev->ieee80211_ptr;
4094 struct mesh_config cur_params;
4097 struct nlattr *pinfoattr;
4098 struct sk_buff *msg;
4100 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4103 if (!rdev->ops->get_mesh_config)
4107 /* If not connected, get default parameters */
4108 if (!wdev->mesh_id_len)
4109 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4111 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4117 /* Draw up a netlink message to send back */
4118 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4121 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4122 NL80211_CMD_GET_MESH_CONFIG);
4125 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4127 goto nla_put_failure;
4128 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4129 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4130 cur_params.dot11MeshRetryTimeout) ||
4131 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4132 cur_params.dot11MeshConfirmTimeout) ||
4133 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4134 cur_params.dot11MeshHoldingTimeout) ||
4135 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4136 cur_params.dot11MeshMaxPeerLinks) ||
4137 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4138 cur_params.dot11MeshMaxRetries) ||
4139 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4140 cur_params.dot11MeshTTL) ||
4141 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4142 cur_params.element_ttl) ||
4143 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4144 cur_params.auto_open_plinks) ||
4145 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4146 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4147 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4148 cur_params.dot11MeshHWMPmaxPREQretries) ||
4149 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4150 cur_params.path_refresh_time) ||
4151 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4152 cur_params.min_discovery_timeout) ||
4153 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4154 cur_params.dot11MeshHWMPactivePathTimeout) ||
4155 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4156 cur_params.dot11MeshHWMPpreqMinInterval) ||
4157 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4158 cur_params.dot11MeshHWMPperrMinInterval) ||
4159 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4160 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4161 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4162 cur_params.dot11MeshHWMPRootMode) ||
4163 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4164 cur_params.dot11MeshHWMPRannInterval) ||
4165 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4166 cur_params.dot11MeshGateAnnouncementProtocol) ||
4167 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4168 cur_params.dot11MeshForwarding) ||
4169 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4170 cur_params.rssi_threshold) ||
4171 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4172 cur_params.ht_opmode) ||
4173 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4174 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4175 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4176 cur_params.dot11MeshHWMProotInterval) ||
4177 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4178 cur_params.dot11MeshHWMPconfirmationInterval) ||
4179 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4180 cur_params.power_mode) ||
4181 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4182 cur_params.dot11MeshAwakeWindowDuration))
4183 goto nla_put_failure;
4184 nla_nest_end(msg, pinfoattr);
4185 genlmsg_end(msg, hdr);
4186 return genlmsg_reply(msg, info);
4189 genlmsg_cancel(msg, hdr);
4195 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4196 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4197 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4198 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4199 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4200 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4201 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4202 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4203 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4204 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4205 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4206 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4207 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4208 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4209 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4210 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4211 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4212 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4213 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4214 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4215 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4216 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4217 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4218 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4219 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4220 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4221 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4222 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4225 static const struct nla_policy
4226 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4227 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4228 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4229 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4230 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4231 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4232 .len = IEEE80211_MAX_DATA_LEN },
4233 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4236 static int nl80211_parse_mesh_config(struct genl_info *info,
4237 struct mesh_config *cfg,
4240 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4243 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4246 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4248 cfg->param = fn(tb[attr]); \
4249 mask |= (1 << (attr - 1)); \
4254 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4256 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4257 info->attrs[NL80211_ATTR_MESH_CONFIG],
4258 nl80211_meshconf_params_policy))
4261 /* This makes sure that there aren't more than 32 mesh config
4262 * parameters (otherwise our bitfield scheme would not work.) */
4263 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4265 /* Fill in the params struct */
4266 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4267 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4269 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4270 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4272 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4273 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4275 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4276 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4278 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4279 mask, NL80211_MESHCONF_MAX_RETRIES,
4281 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4282 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4283 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4284 mask, NL80211_MESHCONF_ELEMENT_TTL,
4286 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4287 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4289 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4291 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4293 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4294 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4296 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4297 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4299 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4300 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4302 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4304 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4306 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4308 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4310 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4312 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4314 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4315 dot11MeshHWMPnetDiameterTraversalTime,
4317 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4319 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4320 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4322 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4323 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4325 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4326 dot11MeshGateAnnouncementProtocol, 0, 1,
4327 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4329 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4330 mask, NL80211_MESHCONF_FORWARDING,
4332 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
4333 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4335 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4336 mask, NL80211_MESHCONF_HT_OPMODE,
4338 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4340 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4342 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4343 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4345 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4346 dot11MeshHWMPconfirmationInterval,
4348 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4350 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4351 NL80211_MESH_POWER_ACTIVE,
4352 NL80211_MESH_POWER_MAX,
4353 mask, NL80211_MESHCONF_POWER_MODE,
4355 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4357 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4363 #undef FILL_IN_MESH_PARAM_IF_SET
4366 static int nl80211_parse_mesh_setup(struct genl_info *info,
4367 struct mesh_setup *setup)
4369 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4371 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4373 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4374 info->attrs[NL80211_ATTR_MESH_SETUP],
4375 nl80211_mesh_setup_params_policy))
4378 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4379 setup->sync_method =
4380 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4381 IEEE80211_SYNC_METHOD_VENDOR :
4382 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4384 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4385 setup->path_sel_proto =
4386 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4387 IEEE80211_PATH_PROTOCOL_VENDOR :
4388 IEEE80211_PATH_PROTOCOL_HWMP;
4390 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4391 setup->path_metric =
4392 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4393 IEEE80211_PATH_METRIC_VENDOR :
4394 IEEE80211_PATH_METRIC_AIRTIME;
4397 if (tb[NL80211_MESH_SETUP_IE]) {
4398 struct nlattr *ieattr =
4399 tb[NL80211_MESH_SETUP_IE];
4400 if (!is_valid_ie_attr(ieattr))
4402 setup->ie = nla_data(ieattr);
4403 setup->ie_len = nla_len(ieattr);
4405 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4406 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4411 static int nl80211_update_mesh_config(struct sk_buff *skb,
4412 struct genl_info *info)
4414 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4415 struct net_device *dev = info->user_ptr[1];
4416 struct wireless_dev *wdev = dev->ieee80211_ptr;
4417 struct mesh_config cfg;
4421 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4424 if (!rdev->ops->update_mesh_config)
4427 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4432 if (!wdev->mesh_id_len)
4436 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4443 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4445 const struct ieee80211_regdomain *regdom;
4446 struct sk_buff *msg;
4448 struct nlattr *nl_reg_rules;
4452 mutex_lock(&cfg80211_mutex);
4454 if (!cfg80211_regdomain)
4457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4463 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4464 NL80211_CMD_GET_REG);
4468 if (reg_last_request_cell_base() &&
4469 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4470 NL80211_USER_REG_HINT_CELL_BASE))
4471 goto nla_put_failure;
4474 regdom = rcu_dereference(cfg80211_regdomain);
4476 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4477 (regdom->dfs_region &&
4478 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4479 goto nla_put_failure_rcu;
4481 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4483 goto nla_put_failure_rcu;
4485 for (i = 0; i < regdom->n_reg_rules; i++) {
4486 struct nlattr *nl_reg_rule;
4487 const struct ieee80211_reg_rule *reg_rule;
4488 const struct ieee80211_freq_range *freq_range;
4489 const struct ieee80211_power_rule *power_rule;
4491 reg_rule = ®dom->reg_rules[i];
4492 freq_range = ®_rule->freq_range;
4493 power_rule = ®_rule->power_rule;
4495 nl_reg_rule = nla_nest_start(msg, i);
4497 goto nla_put_failure_rcu;
4499 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4501 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4502 freq_range->start_freq_khz) ||
4503 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4504 freq_range->end_freq_khz) ||
4505 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4506 freq_range->max_bandwidth_khz) ||
4507 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4508 power_rule->max_antenna_gain) ||
4509 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4510 power_rule->max_eirp))
4511 goto nla_put_failure_rcu;
4513 nla_nest_end(msg, nl_reg_rule);
4517 nla_nest_end(msg, nl_reg_rules);
4519 genlmsg_end(msg, hdr);
4520 err = genlmsg_reply(msg, info);
4523 nla_put_failure_rcu:
4526 genlmsg_cancel(msg, hdr);
4531 mutex_unlock(&cfg80211_mutex);
4535 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4537 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4538 struct nlattr *nl_reg_rule;
4539 char *alpha2 = NULL;
4540 int rem_reg_rules = 0, r = 0;
4541 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4543 struct ieee80211_regdomain *rd = NULL;
4545 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4548 if (!info->attrs[NL80211_ATTR_REG_RULES])
4551 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4553 if (info->attrs[NL80211_ATTR_DFS_REGION])
4554 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4556 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4559 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4563 size_of_regd = sizeof(struct ieee80211_regdomain) +
4564 num_rules * sizeof(struct ieee80211_reg_rule);
4566 rd = kzalloc(size_of_regd, GFP_KERNEL);
4570 rd->n_reg_rules = num_rules;
4571 rd->alpha2[0] = alpha2[0];
4572 rd->alpha2[1] = alpha2[1];
4575 * Disable DFS master mode if the DFS region was
4576 * not supported or known on this kernel.
4578 if (reg_supported_dfs_region(dfs_region))
4579 rd->dfs_region = dfs_region;
4581 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4583 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4584 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4586 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4592 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4598 mutex_lock(&cfg80211_mutex);
4601 /* set_regdom took ownership */
4603 mutex_unlock(&cfg80211_mutex);
4610 static int validate_scan_freqs(struct nlattr *freqs)
4612 struct nlattr *attr1, *attr2;
4613 int n_channels = 0, tmp1, tmp2;
4615 nla_for_each_nested(attr1, freqs, tmp1) {
4618 * Some hardware has a limited channel list for
4619 * scanning, and it is pretty much nonsensical
4620 * to scan for a channel twice, so disallow that
4621 * and don't require drivers to check that the
4622 * channel list they get isn't longer than what
4623 * they can scan, as long as they can scan all
4624 * the channels they registered at once.
4626 nla_for_each_nested(attr2, freqs, tmp2)
4627 if (attr1 != attr2 &&
4628 nla_get_u32(attr1) == nla_get_u32(attr2))
4635 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4638 struct wireless_dev *wdev = info->user_ptr[1];
4639 struct cfg80211_scan_request *request;
4640 struct nlattr *attr;
4641 struct wiphy *wiphy;
4642 int err, tmp, n_ssids = 0, n_channels, i;
4645 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4648 wiphy = &rdev->wiphy;
4650 if (!rdev->ops->scan)
4656 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4657 n_channels = validate_scan_freqs(
4658 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4662 enum ieee80211_band band;
4665 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4666 if (wiphy->bands[band])
4667 n_channels += wiphy->bands[band]->n_channels;
4670 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4671 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4674 if (n_ssids > wiphy->max_scan_ssids)
4677 if (info->attrs[NL80211_ATTR_IE])
4678 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4682 if (ie_len > wiphy->max_scan_ie_len)
4685 request = kzalloc(sizeof(*request)
4686 + sizeof(*request->ssids) * n_ssids
4687 + sizeof(*request->channels) * n_channels
4688 + ie_len, GFP_KERNEL);
4693 request->ssids = (void *)&request->channels[n_channels];
4694 request->n_ssids = n_ssids;
4697 request->ie = (void *)(request->ssids + n_ssids);
4699 request->ie = (void *)(request->channels + n_channels);
4703 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4704 /* user specified, bail out if channel not found */
4705 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4706 struct ieee80211_channel *chan;
4708 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4715 /* ignore disabled channels */
4716 if (chan->flags & IEEE80211_CHAN_DISABLED)
4719 request->channels[i] = chan;
4723 enum ieee80211_band band;
4726 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4728 if (!wiphy->bands[band])
4730 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4731 struct ieee80211_channel *chan;
4733 chan = &wiphy->bands[band]->channels[j];
4735 if (chan->flags & IEEE80211_CHAN_DISABLED)
4738 request->channels[i] = chan;
4749 request->n_channels = i;
4752 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4753 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4754 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4758 request->ssids[i].ssid_len = nla_len(attr);
4759 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4764 if (info->attrs[NL80211_ATTR_IE]) {
4765 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4766 memcpy((void *)request->ie,
4767 nla_data(info->attrs[NL80211_ATTR_IE]),
4771 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4772 if (wiphy->bands[i])
4774 (1 << wiphy->bands[i]->n_bitrates) - 1;
4776 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4777 nla_for_each_nested(attr,
4778 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4780 enum ieee80211_band band = nla_type(attr);
4782 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4786 err = ieee80211_get_ratemask(wiphy->bands[band],
4789 &request->rates[band]);
4795 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4796 request->flags = nla_get_u32(
4797 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4798 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4799 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4800 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4801 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4808 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4810 request->wdev = wdev;
4811 request->wiphy = &rdev->wiphy;
4812 request->scan_start = jiffies;
4814 rdev->scan_req = request;
4815 err = rdev_scan(rdev, request);
4818 nl80211_send_scan_start(rdev, wdev);
4820 dev_hold(wdev->netdev);
4823 rdev->scan_req = NULL;
4830 static int nl80211_start_sched_scan(struct sk_buff *skb,
4831 struct genl_info *info)
4833 struct cfg80211_sched_scan_request *request;
4834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4835 struct net_device *dev = info->user_ptr[1];
4836 struct nlattr *attr;
4837 struct wiphy *wiphy;
4838 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4840 enum ieee80211_band band;
4842 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4844 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4845 !rdev->ops->sched_scan_start)
4848 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4851 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4854 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4858 wiphy = &rdev->wiphy;
4860 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4861 n_channels = validate_scan_freqs(
4862 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4868 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4869 if (wiphy->bands[band])
4870 n_channels += wiphy->bands[band]->n_channels;
4873 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4874 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4878 if (n_ssids > wiphy->max_sched_scan_ssids)
4881 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4882 nla_for_each_nested(attr,
4883 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4887 if (n_match_sets > wiphy->max_match_sets)
4890 if (info->attrs[NL80211_ATTR_IE])
4891 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4895 if (ie_len > wiphy->max_sched_scan_ie_len)
4898 mutex_lock(&rdev->sched_scan_mtx);
4900 if (rdev->sched_scan_req) {
4905 request = kzalloc(sizeof(*request)
4906 + sizeof(*request->ssids) * n_ssids
4907 + sizeof(*request->match_sets) * n_match_sets
4908 + sizeof(*request->channels) * n_channels
4909 + ie_len, GFP_KERNEL);
4916 request->ssids = (void *)&request->channels[n_channels];
4917 request->n_ssids = n_ssids;
4920 request->ie = (void *)(request->ssids + n_ssids);
4922 request->ie = (void *)(request->channels + n_channels);
4927 request->match_sets = (void *)(request->ie + ie_len);
4928 else if (request->ssids)
4929 request->match_sets =
4930 (void *)(request->ssids + n_ssids);
4932 request->match_sets =
4933 (void *)(request->channels + n_channels);
4935 request->n_match_sets = n_match_sets;
4938 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4939 /* user specified, bail out if channel not found */
4940 nla_for_each_nested(attr,
4941 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4943 struct ieee80211_channel *chan;
4945 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4952 /* ignore disabled channels */
4953 if (chan->flags & IEEE80211_CHAN_DISABLED)
4956 request->channels[i] = chan;
4961 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4963 if (!wiphy->bands[band])
4965 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4966 struct ieee80211_channel *chan;
4968 chan = &wiphy->bands[band]->channels[j];
4970 if (chan->flags & IEEE80211_CHAN_DISABLED)
4973 request->channels[i] = chan;
4984 request->n_channels = i;
4987 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4988 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4990 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4994 request->ssids[i].ssid_len = nla_len(attr);
4995 memcpy(request->ssids[i].ssid, nla_data(attr),
5002 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5003 nla_for_each_nested(attr,
5004 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5006 struct nlattr *ssid, *rssi;
5008 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5009 nla_data(attr), nla_len(attr),
5010 nl80211_match_policy);
5011 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5013 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5017 memcpy(request->match_sets[i].ssid.ssid,
5018 nla_data(ssid), nla_len(ssid));
5019 request->match_sets[i].ssid.ssid_len =
5022 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5024 request->rssi_thold = nla_get_u32(rssi);
5026 request->rssi_thold =
5027 NL80211_SCAN_RSSI_THOLD_OFF;
5032 if (info->attrs[NL80211_ATTR_IE]) {
5033 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5034 memcpy((void *)request->ie,
5035 nla_data(info->attrs[NL80211_ATTR_IE]),
5039 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5040 request->flags = nla_get_u32(
5041 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5042 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5043 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5044 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5045 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5052 request->wiphy = &rdev->wiphy;
5053 request->interval = interval;
5054 request->scan_start = jiffies;
5056 err = rdev_sched_scan_start(rdev, dev, request);
5058 rdev->sched_scan_req = request;
5059 nl80211_send_sched_scan(rdev, dev,
5060 NL80211_CMD_START_SCHED_SCAN);
5067 mutex_unlock(&rdev->sched_scan_mtx);
5071 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5072 struct genl_info *info)
5074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5077 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5078 !rdev->ops->sched_scan_stop)
5081 mutex_lock(&rdev->sched_scan_mtx);
5082 err = __cfg80211_stop_sched_scan(rdev, false);
5083 mutex_unlock(&rdev->sched_scan_mtx);
5088 static int nl80211_start_radar_detection(struct sk_buff *skb,
5089 struct genl_info *info)
5091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5092 struct net_device *dev = info->user_ptr[1];
5093 struct wireless_dev *wdev = dev->ieee80211_ptr;
5094 struct cfg80211_chan_def chandef;
5097 err = nl80211_parse_chandef(rdev, info, &chandef);
5101 if (wdev->cac_started)
5104 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5111 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5114 if (!rdev->ops->start_radar_detection)
5117 mutex_lock(&rdev->devlist_mtx);
5118 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5119 chandef.chan, CHAN_MODE_SHARED,
5120 BIT(chandef.width));
5124 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5126 wdev->channel = chandef.chan;
5127 wdev->cac_started = true;
5128 wdev->cac_start_time = jiffies;
5131 mutex_unlock(&rdev->devlist_mtx);
5136 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5138 struct cfg80211_registered_device *rdev,
5139 struct wireless_dev *wdev,
5140 struct cfg80211_internal_bss *intbss)
5142 struct cfg80211_bss *res = &intbss->pub;
5143 const struct cfg80211_bss_ies *ies;
5148 ASSERT_WDEV_LOCK(wdev);
5150 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5151 NL80211_CMD_NEW_SCAN_RESULTS);
5155 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5157 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5158 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5159 goto nla_put_failure;
5161 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5163 goto nla_put_failure;
5164 if ((!is_zero_ether_addr(res->bssid) &&
5165 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5166 goto nla_put_failure;
5169 ies = rcu_dereference(res->ies);
5171 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5172 goto fail_unlock_rcu;
5174 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5175 ies->len, ies->data))
5176 goto fail_unlock_rcu;
5178 ies = rcu_dereference(res->beacon_ies);
5180 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5181 goto fail_unlock_rcu;
5182 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5183 ies->len, ies->data))
5184 goto fail_unlock_rcu;
5188 if (res->beacon_interval &&
5189 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5190 goto nla_put_failure;
5191 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5192 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5193 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5194 jiffies_to_msecs(jiffies - intbss->ts)))
5195 goto nla_put_failure;
5197 switch (rdev->wiphy.signal_type) {
5198 case CFG80211_SIGNAL_TYPE_MBM:
5199 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5200 goto nla_put_failure;
5202 case CFG80211_SIGNAL_TYPE_UNSPEC:
5203 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5204 goto nla_put_failure;
5210 switch (wdev->iftype) {
5211 case NL80211_IFTYPE_P2P_CLIENT:
5212 case NL80211_IFTYPE_STATION:
5213 if (intbss == wdev->current_bss &&
5214 nla_put_u32(msg, NL80211_BSS_STATUS,
5215 NL80211_BSS_STATUS_ASSOCIATED))
5216 goto nla_put_failure;
5218 case NL80211_IFTYPE_ADHOC:
5219 if (intbss == wdev->current_bss &&
5220 nla_put_u32(msg, NL80211_BSS_STATUS,
5221 NL80211_BSS_STATUS_IBSS_JOINED))
5222 goto nla_put_failure;
5228 nla_nest_end(msg, bss);
5230 return genlmsg_end(msg, hdr);
5235 genlmsg_cancel(msg, hdr);
5239 static int nl80211_dump_scan(struct sk_buff *skb,
5240 struct netlink_callback *cb)
5242 struct cfg80211_registered_device *rdev;
5243 struct net_device *dev;
5244 struct cfg80211_internal_bss *scan;
5245 struct wireless_dev *wdev;
5246 int start = cb->args[1], idx = 0;
5249 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5253 wdev = dev->ieee80211_ptr;
5256 spin_lock_bh(&rdev->bss_lock);
5257 cfg80211_bss_expire(rdev);
5259 cb->seq = rdev->bss_generation;
5261 list_for_each_entry(scan, &rdev->bss_list, list) {
5264 if (nl80211_send_bss(skb, cb,
5265 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5266 rdev, wdev, scan) < 0) {
5272 spin_unlock_bh(&rdev->bss_lock);
5276 nl80211_finish_netdev_dump(rdev);
5281 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5282 int flags, struct net_device *dev,
5283 struct survey_info *survey)
5286 struct nlattr *infoattr;
5288 hdr = nl80211hdr_put(msg, portid, seq, flags,
5289 NL80211_CMD_NEW_SURVEY_RESULTS);
5293 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5294 goto nla_put_failure;
5296 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5298 goto nla_put_failure;
5300 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5301 survey->channel->center_freq))
5302 goto nla_put_failure;
5304 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5305 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5306 goto nla_put_failure;
5307 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5308 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5309 goto nla_put_failure;
5310 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5311 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5312 survey->channel_time))
5313 goto nla_put_failure;
5314 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5315 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5316 survey->channel_time_busy))
5317 goto nla_put_failure;
5318 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5319 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5320 survey->channel_time_ext_busy))
5321 goto nla_put_failure;
5322 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5323 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5324 survey->channel_time_rx))
5325 goto nla_put_failure;
5326 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5327 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5328 survey->channel_time_tx))
5329 goto nla_put_failure;
5331 nla_nest_end(msg, infoattr);
5333 return genlmsg_end(msg, hdr);
5336 genlmsg_cancel(msg, hdr);
5340 static int nl80211_dump_survey(struct sk_buff *skb,
5341 struct netlink_callback *cb)
5343 struct survey_info survey;
5344 struct cfg80211_registered_device *dev;
5345 struct net_device *netdev;
5346 int survey_idx = cb->args[1];
5349 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5353 if (!dev->ops->dump_survey) {
5359 struct ieee80211_channel *chan;
5361 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
5367 /* Survey without a channel doesn't make sense */
5368 if (!survey.channel) {
5373 chan = ieee80211_get_channel(&dev->wiphy,
5374 survey.channel->center_freq);
5375 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5380 if (nl80211_send_survey(skb,
5381 NETLINK_CB(cb->skb).portid,
5382 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5390 cb->args[1] = survey_idx;
5393 nl80211_finish_netdev_dump(dev);
5397 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5399 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5400 NL80211_WPA_VERSION_2));
5403 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5406 struct net_device *dev = info->user_ptr[1];
5407 struct ieee80211_channel *chan;
5408 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5409 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5410 enum nl80211_auth_type auth_type;
5411 struct key_parse key;
5412 bool local_state_change;
5414 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5417 if (!info->attrs[NL80211_ATTR_MAC])
5420 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5423 if (!info->attrs[NL80211_ATTR_SSID])
5426 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5429 err = nl80211_parse_key(info, &key);
5434 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5436 if (!key.p.key || !key.p.key_len)
5438 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5439 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5440 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5441 key.p.key_len != WLAN_KEY_LEN_WEP104))
5453 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5454 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5463 if (!rdev->ops->auth)
5466 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5467 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5470 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5471 chan = ieee80211_get_channel(&rdev->wiphy,
5472 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5473 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5476 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5477 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5479 if (info->attrs[NL80211_ATTR_IE]) {
5480 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5481 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5484 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5485 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5488 if (auth_type == NL80211_AUTHTYPE_SAE &&
5489 !info->attrs[NL80211_ATTR_SAE_DATA])
5492 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5493 if (auth_type != NL80211_AUTHTYPE_SAE)
5495 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5496 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5497 /* need to include at least Auth Transaction and Status Code */
5498 if (sae_data_len < 4)
5502 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5505 * Since we no longer track auth state, ignore
5506 * requests to only change local state.
5508 if (local_state_change)
5511 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5512 ssid, ssid_len, ie, ie_len,
5513 key.p.key, key.p.key_len, key.idx,
5514 sae_data, sae_data_len);
5517 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5518 struct genl_info *info,
5519 struct cfg80211_crypto_settings *settings,
5522 memset(settings, 0, sizeof(*settings));
5524 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5526 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5528 proto = nla_get_u16(
5529 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5530 settings->control_port_ethertype = cpu_to_be16(proto);
5531 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5534 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5535 settings->control_port_no_encrypt = true;
5537 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5539 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5543 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5544 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5545 settings->n_ciphers_pairwise = len / sizeof(u32);
5547 if (len % sizeof(u32))
5550 if (settings->n_ciphers_pairwise > cipher_limit)
5553 memcpy(settings->ciphers_pairwise, data, len);
5555 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5556 if (!cfg80211_supported_cipher_suite(
5558 settings->ciphers_pairwise[i]))
5562 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5563 settings->cipher_group =
5564 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5565 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5566 settings->cipher_group))
5570 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5571 settings->wpa_versions =
5572 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5573 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5577 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5581 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5582 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5583 settings->n_akm_suites = len / sizeof(u32);
5585 if (len % sizeof(u32))
5588 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5591 memcpy(settings->akm_suites, data, len);
5597 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5600 struct net_device *dev = info->user_ptr[1];
5601 struct cfg80211_crypto_settings crypto;
5602 struct ieee80211_channel *chan;
5603 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5604 int err, ssid_len, ie_len = 0;
5605 bool use_mfp = false;
5607 struct ieee80211_ht_cap *ht_capa = NULL;
5608 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5610 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5613 if (!info->attrs[NL80211_ATTR_MAC] ||
5614 !info->attrs[NL80211_ATTR_SSID] ||
5615 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5618 if (!rdev->ops->assoc)
5621 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5622 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5625 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5627 chan = ieee80211_get_channel(&rdev->wiphy,
5628 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5629 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5632 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5633 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5635 if (info->attrs[NL80211_ATTR_IE]) {
5636 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5637 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5640 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5641 enum nl80211_mfp mfp =
5642 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5643 if (mfp == NL80211_MFP_REQUIRED)
5645 else if (mfp != NL80211_MFP_NO)
5649 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5650 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5652 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5653 flags |= ASSOC_REQ_DISABLE_HT;
5655 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5657 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5659 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5662 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5665 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5667 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5668 ssid, ssid_len, ie, ie_len, use_mfp,
5669 &crypto, flags, ht_capa,
5675 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5678 struct net_device *dev = info->user_ptr[1];
5679 const u8 *ie = NULL, *bssid;
5682 bool local_state_change;
5684 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5687 if (!info->attrs[NL80211_ATTR_MAC])
5690 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5693 if (!rdev->ops->deauth)
5696 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5697 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5700 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5702 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5703 if (reason_code == 0) {
5704 /* Reason Code 0 is reserved */
5708 if (info->attrs[NL80211_ATTR_IE]) {
5709 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5710 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5713 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5715 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5716 local_state_change);
5719 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5722 struct net_device *dev = info->user_ptr[1];
5723 const u8 *ie = NULL, *bssid;
5726 bool local_state_change;
5728 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5731 if (!info->attrs[NL80211_ATTR_MAC])
5734 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5737 if (!rdev->ops->disassoc)
5740 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5741 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5744 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5746 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5747 if (reason_code == 0) {
5748 /* Reason Code 0 is reserved */
5752 if (info->attrs[NL80211_ATTR_IE]) {
5753 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5754 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5757 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5759 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5760 local_state_change);
5764 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5765 int mcast_rate[IEEE80211_NUM_BANDS],
5768 struct wiphy *wiphy = &rdev->wiphy;
5772 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5773 struct ieee80211_supported_band *sband;
5775 sband = wiphy->bands[band];
5779 for (i = 0; i < sband->n_bitrates; i++) {
5780 if (sband->bitrates[i].bitrate == rateval) {
5781 mcast_rate[band] = i + 1;
5791 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5794 struct net_device *dev = info->user_ptr[1];
5795 struct cfg80211_ibss_params ibss;
5796 struct wiphy *wiphy;
5797 struct cfg80211_cached_keys *connkeys = NULL;
5800 memset(&ibss, 0, sizeof(ibss));
5802 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5805 if (!info->attrs[NL80211_ATTR_SSID] ||
5806 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5809 ibss.beacon_interval = 100;
5811 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5812 ibss.beacon_interval =
5813 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5814 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5818 if (!rdev->ops->join_ibss)
5821 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5824 wiphy = &rdev->wiphy;
5826 if (info->attrs[NL80211_ATTR_MAC]) {
5827 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5829 if (!is_valid_ether_addr(ibss.bssid))
5832 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5833 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5835 if (info->attrs[NL80211_ATTR_IE]) {
5836 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5837 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5840 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5844 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
5847 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5849 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5850 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
5853 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5854 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5856 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5858 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5860 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5861 struct ieee80211_supported_band *sband =
5862 wiphy->bands[ibss.chandef.chan->band];
5864 err = ieee80211_get_ratemask(sband, rates, n_rates,
5870 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5871 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5872 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5875 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5878 connkeys = nl80211_parse_connkeys(rdev,
5879 info->attrs[NL80211_ATTR_KEYS],
5881 if (IS_ERR(connkeys))
5882 return PTR_ERR(connkeys);
5884 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5892 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5894 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5900 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5903 struct net_device *dev = info->user_ptr[1];
5905 if (!rdev->ops->leave_ibss)
5908 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5911 return cfg80211_leave_ibss(rdev, dev, false);
5914 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5917 struct net_device *dev = info->user_ptr[1];
5918 int mcast_rate[IEEE80211_NUM_BANDS];
5922 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5923 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5926 if (!rdev->ops->set_mcast_rate)
5929 memset(mcast_rate, 0, sizeof(mcast_rate));
5931 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5934 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5935 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5938 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5944 #ifdef CONFIG_NL80211_TESTMODE
5945 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5949 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5951 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5954 if (!info->attrs[NL80211_ATTR_TESTDATA])
5958 if (rdev->ops->testmode_cmd) {
5959 rdev->testmode_info = info;
5960 err = rdev_testmode_cmd(rdev,
5961 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5962 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5963 rdev->testmode_info = NULL;
5969 static int nl80211_testmode_dump(struct sk_buff *skb,
5970 struct netlink_callback *cb)
5972 struct cfg80211_registered_device *rdev;
5980 * 0 is a valid index, but not valid for args[0],
5981 * so we need to offset by 1.
5983 phy_idx = cb->args[0] - 1;
5985 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5986 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5991 mutex_lock(&cfg80211_mutex);
5992 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5993 nl80211_fam.attrbuf);
5995 mutex_unlock(&cfg80211_mutex);
5996 return PTR_ERR(rdev);
5998 phy_idx = rdev->wiphy_idx;
6000 mutex_unlock(&cfg80211_mutex);
6002 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6004 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6008 data = nla_data((void *)cb->args[1]);
6009 data_len = nla_len((void *)cb->args[1]);
6012 mutex_lock(&cfg80211_mutex);
6013 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6015 mutex_unlock(&cfg80211_mutex);
6018 cfg80211_lock_rdev(rdev);
6019 mutex_unlock(&cfg80211_mutex);
6021 if (!rdev->ops->testmode_dump) {
6027 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6028 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6029 NL80211_CMD_TESTMODE);
6030 struct nlattr *tmdata;
6032 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6033 genlmsg_cancel(skb, hdr);
6037 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6039 genlmsg_cancel(skb, hdr);
6042 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6043 nla_nest_end(skb, tmdata);
6045 if (err == -ENOBUFS || err == -ENOENT) {
6046 genlmsg_cancel(skb, hdr);
6049 genlmsg_cancel(skb, hdr);
6053 genlmsg_end(skb, hdr);
6058 cb->args[0] = phy_idx + 1;
6060 cfg80211_unlock_rdev(rdev);
6064 static struct sk_buff *
6065 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
6066 int approxlen, u32 portid, u32 seq, gfp_t gfp)
6068 struct sk_buff *skb;
6070 struct nlattr *data;
6072 skb = nlmsg_new(approxlen + 100, gfp);
6076 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
6082 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6083 goto nla_put_failure;
6084 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6086 ((void **)skb->cb)[0] = rdev;
6087 ((void **)skb->cb)[1] = hdr;
6088 ((void **)skb->cb)[2] = data;
6097 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6100 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6102 if (WARN_ON(!rdev->testmode_info))
6105 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
6106 rdev->testmode_info->snd_portid,
6107 rdev->testmode_info->snd_seq,
6110 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6112 int cfg80211_testmode_reply(struct sk_buff *skb)
6114 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6115 void *hdr = ((void **)skb->cb)[1];
6116 struct nlattr *data = ((void **)skb->cb)[2];
6118 if (WARN_ON(!rdev->testmode_info)) {
6123 nla_nest_end(skb, data);
6124 genlmsg_end(skb, hdr);
6125 return genlmsg_reply(skb, rdev->testmode_info);
6127 EXPORT_SYMBOL(cfg80211_testmode_reply);
6129 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6130 int approxlen, gfp_t gfp)
6132 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6134 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6136 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6138 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6140 void *hdr = ((void **)skb->cb)[1];
6141 struct nlattr *data = ((void **)skb->cb)[2];
6143 nla_nest_end(skb, data);
6144 genlmsg_end(skb, hdr);
6145 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6147 EXPORT_SYMBOL(cfg80211_testmode_event);
6150 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6153 struct net_device *dev = info->user_ptr[1];
6154 struct cfg80211_connect_params connect;
6155 struct wiphy *wiphy;
6156 struct cfg80211_cached_keys *connkeys = NULL;
6159 memset(&connect, 0, sizeof(connect));
6161 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6164 if (!info->attrs[NL80211_ATTR_SSID] ||
6165 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6168 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6170 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6171 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6172 NL80211_CMD_CONNECT))
6175 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6177 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6179 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6180 NL80211_MAX_NR_CIPHER_SUITES);
6184 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6185 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6188 wiphy = &rdev->wiphy;
6190 connect.bg_scan_period = -1;
6191 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6192 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6193 connect.bg_scan_period =
6194 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6197 if (info->attrs[NL80211_ATTR_MAC])
6198 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6199 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6200 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6202 if (info->attrs[NL80211_ATTR_IE]) {
6203 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6204 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6207 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6208 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6209 if (connect.mfp != NL80211_MFP_REQUIRED &&
6210 connect.mfp != NL80211_MFP_NO)
6213 connect.mfp = NL80211_MFP_NO;
6216 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6218 ieee80211_get_channel(wiphy,
6219 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6220 if (!connect.channel ||
6221 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6225 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6226 connkeys = nl80211_parse_connkeys(rdev,
6227 info->attrs[NL80211_ATTR_KEYS], NULL);
6228 if (IS_ERR(connkeys))
6229 return PTR_ERR(connkeys);
6232 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6233 connect.flags |= ASSOC_REQ_DISABLE_HT;
6235 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6236 memcpy(&connect.ht_capa_mask,
6237 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6238 sizeof(connect.ht_capa_mask));
6240 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6241 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6245 memcpy(&connect.ht_capa,
6246 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6247 sizeof(connect.ht_capa));
6250 err = cfg80211_connect(rdev, dev, &connect, connkeys);
6256 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6258 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6259 struct net_device *dev = info->user_ptr[1];
6262 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6263 reason = WLAN_REASON_DEAUTH_LEAVING;
6265 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6270 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6271 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6274 return cfg80211_disconnect(rdev, dev, reason, true);
6277 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6284 if (!info->attrs[NL80211_ATTR_PID])
6287 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6289 net = get_net_ns_by_pid(pid);
6291 return PTR_ERR(net);
6295 /* check if anything to do */
6296 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6297 err = cfg80211_switch_netns(rdev, net);
6303 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6306 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6307 struct cfg80211_pmksa *pmksa) = NULL;
6308 struct net_device *dev = info->user_ptr[1];
6309 struct cfg80211_pmksa pmksa;
6311 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6313 if (!info->attrs[NL80211_ATTR_MAC])
6316 if (!info->attrs[NL80211_ATTR_PMKID])
6319 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6320 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6322 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6323 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6326 switch (info->genlhdr->cmd) {
6327 case NL80211_CMD_SET_PMKSA:
6328 rdev_ops = rdev->ops->set_pmksa;
6330 case NL80211_CMD_DEL_PMKSA:
6331 rdev_ops = rdev->ops->del_pmksa;
6341 return rdev_ops(&rdev->wiphy, dev, &pmksa);
6344 static int nl80211_flush_pmksa(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 (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6350 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6353 if (!rdev->ops->flush_pmksa)
6356 return rdev_flush_pmksa(rdev, dev);
6359 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6362 struct net_device *dev = info->user_ptr[1];
6363 u8 action_code, dialog_token;
6367 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6368 !rdev->ops->tdls_mgmt)
6371 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6372 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6373 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6374 !info->attrs[NL80211_ATTR_IE] ||
6375 !info->attrs[NL80211_ATTR_MAC])
6378 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6379 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6380 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6381 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6383 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6384 dialog_token, status_code,
6385 nla_data(info->attrs[NL80211_ATTR_IE]),
6386 nla_len(info->attrs[NL80211_ATTR_IE]));
6389 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6392 struct net_device *dev = info->user_ptr[1];
6393 enum nl80211_tdls_operation operation;
6396 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6397 !rdev->ops->tdls_oper)
6400 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6401 !info->attrs[NL80211_ATTR_MAC])
6404 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6405 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6407 return rdev_tdls_oper(rdev, dev, peer, operation);
6410 static int nl80211_remain_on_channel(struct sk_buff *skb,
6411 struct genl_info *info)
6413 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6414 struct wireless_dev *wdev = info->user_ptr[1];
6415 struct cfg80211_chan_def chandef;
6416 struct sk_buff *msg;
6422 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6423 !info->attrs[NL80211_ATTR_DURATION])
6426 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6428 if (!rdev->ops->remain_on_channel ||
6429 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6433 * We should be on that channel for at least a minimum amount of
6434 * time (10ms) but no longer than the driver supports.
6436 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6437 duration > rdev->wiphy.max_remain_on_channel_duration)
6440 err = nl80211_parse_chandef(rdev, info, &chandef);
6444 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6448 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6449 NL80211_CMD_REMAIN_ON_CHANNEL);
6456 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6462 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6463 goto nla_put_failure;
6465 genlmsg_end(msg, hdr);
6467 return genlmsg_reply(msg, info);
6476 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6477 struct genl_info *info)
6479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6480 struct wireless_dev *wdev = info->user_ptr[1];
6483 if (!info->attrs[NL80211_ATTR_COOKIE])
6486 if (!rdev->ops->cancel_remain_on_channel)
6489 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6491 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6494 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6495 u8 *rates, u8 rates_len)
6500 for (i = 0; i < rates_len; i++) {
6501 int rate = (rates[i] & 0x7f) * 5;
6503 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6504 struct ieee80211_rate *srate =
6505 &sband->bitrates[ridx];
6506 if (rate == srate->bitrate) {
6511 if (ridx == sband->n_bitrates)
6512 return 0; /* rate not found */
6518 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6519 u8 *rates, u8 rates_len,
6520 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6524 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6526 for (i = 0; i < rates_len; i++) {
6529 ridx = rates[i] / 8;
6530 rbit = BIT(rates[i] % 8);
6532 /* check validity */
6533 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6536 /* check availability */
6537 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6546 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
6547 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6548 .len = NL80211_MAX_SUPP_RATES },
6549 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6550 .len = NL80211_MAX_SUPP_HT_RATES },
6553 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6554 struct genl_info *info)
6556 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
6557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6558 struct cfg80211_bitrate_mask mask;
6560 struct net_device *dev = info->user_ptr[1];
6561 struct nlattr *tx_rates;
6562 struct ieee80211_supported_band *sband;
6564 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6567 if (!rdev->ops->set_bitrate_mask)
6570 memset(&mask, 0, sizeof(mask));
6571 /* Default to all rates enabled */
6572 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6573 sband = rdev->wiphy.bands[i];
6574 mask.control[i].legacy =
6575 sband ? (1 << sband->n_bitrates) - 1 : 0;
6577 memcpy(mask.control[i].mcs,
6578 sband->ht_cap.mcs.rx_mask,
6579 sizeof(mask.control[i].mcs));
6581 memset(mask.control[i].mcs, 0,
6582 sizeof(mask.control[i].mcs));
6586 * The nested attribute uses enum nl80211_band as the index. This maps
6587 * directly to the enum ieee80211_band values used in cfg80211.
6589 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
6590 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6592 enum ieee80211_band band = nla_type(tx_rates);
6593 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6595 sband = rdev->wiphy.bands[band];
6598 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6599 nla_len(tx_rates), nl80211_txattr_policy);
6600 if (tb[NL80211_TXRATE_LEGACY]) {
6601 mask.control[band].legacy = rateset_to_mask(
6603 nla_data(tb[NL80211_TXRATE_LEGACY]),
6604 nla_len(tb[NL80211_TXRATE_LEGACY]));
6605 if ((mask.control[band].legacy == 0) &&
6606 nla_len(tb[NL80211_TXRATE_LEGACY]))
6609 if (tb[NL80211_TXRATE_MCS]) {
6610 if (!ht_rateset_to_mask(
6612 nla_data(tb[NL80211_TXRATE_MCS]),
6613 nla_len(tb[NL80211_TXRATE_MCS]),
6614 mask.control[band].mcs))
6618 if (mask.control[band].legacy == 0) {
6619 /* don't allow empty legacy rates if HT
6620 * is not even supported. */
6621 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6624 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6625 if (mask.control[band].mcs[i])
6628 /* legacy and mcs rates may not be both empty */
6629 if (i == IEEE80211_HT_MCS_MASK_LEN)
6634 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
6637 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6640 struct wireless_dev *wdev = info->user_ptr[1];
6641 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6643 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6646 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6647 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6649 switch (wdev->iftype) {
6650 case NL80211_IFTYPE_STATION:
6651 case NL80211_IFTYPE_ADHOC:
6652 case NL80211_IFTYPE_P2P_CLIENT:
6653 case NL80211_IFTYPE_AP:
6654 case NL80211_IFTYPE_AP_VLAN:
6655 case NL80211_IFTYPE_MESH_POINT:
6656 case NL80211_IFTYPE_P2P_GO:
6657 case NL80211_IFTYPE_P2P_DEVICE:
6663 /* not much point in registering if we can't reply */
6664 if (!rdev->ops->mgmt_tx)
6667 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
6668 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6669 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6672 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6675 struct wireless_dev *wdev = info->user_ptr[1];
6676 struct cfg80211_chan_def chandef;
6680 struct sk_buff *msg = NULL;
6681 unsigned int wait = 0;
6682 bool offchan, no_cck, dont_wait_for_ack;
6684 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6686 if (!info->attrs[NL80211_ATTR_FRAME])
6689 if (!rdev->ops->mgmt_tx)
6692 switch (wdev->iftype) {
6693 case NL80211_IFTYPE_STATION:
6694 case NL80211_IFTYPE_ADHOC:
6695 case NL80211_IFTYPE_P2P_CLIENT:
6696 case NL80211_IFTYPE_AP:
6697 case NL80211_IFTYPE_AP_VLAN:
6698 case NL80211_IFTYPE_MESH_POINT:
6699 case NL80211_IFTYPE_P2P_GO:
6700 case NL80211_IFTYPE_P2P_DEVICE:
6706 if (info->attrs[NL80211_ATTR_DURATION]) {
6707 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6709 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6712 * We should wait on the channel for at least a minimum amount
6713 * of time (10ms) but no longer than the driver supports.
6715 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6716 wait > rdev->wiphy.max_remain_on_channel_duration)
6721 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6723 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6726 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6728 err = nl80211_parse_chandef(rdev, info, &chandef);
6732 if (!dont_wait_for_ack) {
6733 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6737 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6746 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
6747 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6748 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6749 no_cck, dont_wait_for_ack, &cookie);
6754 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6755 goto nla_put_failure;
6757 genlmsg_end(msg, hdr);
6758 return genlmsg_reply(msg, info);
6770 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6773 struct wireless_dev *wdev = info->user_ptr[1];
6776 if (!info->attrs[NL80211_ATTR_COOKIE])
6779 if (!rdev->ops->mgmt_tx_cancel_wait)
6782 switch (wdev->iftype) {
6783 case NL80211_IFTYPE_STATION:
6784 case NL80211_IFTYPE_ADHOC:
6785 case NL80211_IFTYPE_P2P_CLIENT:
6786 case NL80211_IFTYPE_AP:
6787 case NL80211_IFTYPE_AP_VLAN:
6788 case NL80211_IFTYPE_P2P_GO:
6789 case NL80211_IFTYPE_P2P_DEVICE:
6795 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6797 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
6800 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6803 struct wireless_dev *wdev;
6804 struct net_device *dev = info->user_ptr[1];
6809 if (!info->attrs[NL80211_ATTR_PS_STATE])
6812 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6814 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6817 wdev = dev->ieee80211_ptr;
6819 if (!rdev->ops->set_power_mgmt)
6822 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6824 if (state == wdev->ps)
6827 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
6833 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6836 enum nl80211_ps_state ps_state;
6837 struct wireless_dev *wdev;
6838 struct net_device *dev = info->user_ptr[1];
6839 struct sk_buff *msg;
6843 wdev = dev->ieee80211_ptr;
6845 if (!rdev->ops->set_power_mgmt)
6848 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6852 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6853 NL80211_CMD_GET_POWER_SAVE);
6860 ps_state = NL80211_PS_ENABLED;
6862 ps_state = NL80211_PS_DISABLED;
6864 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6865 goto nla_put_failure;
6867 genlmsg_end(msg, hdr);
6868 return genlmsg_reply(msg, info);
6877 static struct nla_policy
6878 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6879 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6880 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6881 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6882 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6883 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6884 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6887 static int nl80211_set_cqm_txe(struct genl_info *info,
6888 u32 rate, u32 pkts, u32 intvl)
6890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6891 struct wireless_dev *wdev;
6892 struct net_device *dev = info->user_ptr[1];
6894 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
6897 wdev = dev->ieee80211_ptr;
6899 if (!rdev->ops->set_cqm_txe_config)
6902 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6903 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6906 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
6909 static int nl80211_set_cqm_rssi(struct genl_info *info,
6910 s32 threshold, u32 hysteresis)
6912 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6913 struct wireless_dev *wdev;
6914 struct net_device *dev = info->user_ptr[1];
6919 wdev = dev->ieee80211_ptr;
6921 if (!rdev->ops->set_cqm_rssi_config)
6924 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6925 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6928 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
6931 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6933 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6937 cqm = info->attrs[NL80211_ATTR_CQM];
6943 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6944 nl80211_attr_cqm_policy);
6948 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6949 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6952 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6953 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6954 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6955 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6956 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6957 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6958 u32 rate, pkts, intvl;
6959 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6960 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6961 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6962 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
6970 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6973 struct net_device *dev = info->user_ptr[1];
6974 struct mesh_config cfg;
6975 struct mesh_setup setup;
6978 /* start with default */
6979 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6980 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6982 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6983 /* and parse parameters if given */
6984 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6989 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6990 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6993 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6994 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6996 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6997 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6998 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7001 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7002 setup.beacon_interval =
7003 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7004 if (setup.beacon_interval < 10 ||
7005 setup.beacon_interval > 10000)
7009 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7011 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7012 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7016 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7017 /* parse additional setup parameters if given */
7018 err = nl80211_parse_mesh_setup(info, &setup);
7023 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7024 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7028 /* cfg80211_join_mesh() will sort it out */
7029 setup.chandef.chan = NULL;
7032 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7035 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7038 struct net_device *dev = info->user_ptr[1];
7040 return cfg80211_leave_mesh(rdev, dev);
7044 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7045 struct cfg80211_registered_device *rdev)
7047 struct nlattr *nl_pats, *nl_pat;
7050 if (!rdev->wowlan->n_patterns)
7053 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7057 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7058 nl_pat = nla_nest_start(msg, i + 1);
7061 pat_len = rdev->wowlan->patterns[i].pattern_len;
7062 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7063 DIV_ROUND_UP(pat_len, 8),
7064 rdev->wowlan->patterns[i].mask) ||
7065 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7066 pat_len, rdev->wowlan->patterns[i].pattern) ||
7067 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7068 rdev->wowlan->patterns[i].pkt_offset))
7070 nla_nest_end(msg, nl_pat);
7072 nla_nest_end(msg, nl_pats);
7077 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7078 struct cfg80211_wowlan_tcp *tcp)
7080 struct nlattr *nl_tcp;
7085 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7089 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7090 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7091 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7092 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7093 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7094 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7095 tcp->payload_len, tcp->payload) ||
7096 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7097 tcp->data_interval) ||
7098 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7099 tcp->wake_len, tcp->wake_data) ||
7100 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7101 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7104 if (tcp->payload_seq.len &&
7105 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7106 sizeof(tcp->payload_seq), &tcp->payload_seq))
7109 if (tcp->payload_tok.len &&
7110 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7111 sizeof(tcp->payload_tok) + tcp->tokens_size,
7118 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7121 struct sk_buff *msg;
7123 u32 size = NLMSG_DEFAULT_SIZE;
7125 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7126 !rdev->wiphy.wowlan.tcp)
7129 if (rdev->wowlan && rdev->wowlan->tcp) {
7130 /* adjust size to have room for all the data */
7131 size += rdev->wowlan->tcp->tokens_size +
7132 rdev->wowlan->tcp->payload_len +
7133 rdev->wowlan->tcp->wake_len +
7134 rdev->wowlan->tcp->wake_len / 8;
7137 msg = nlmsg_new(size, GFP_KERNEL);
7141 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7142 NL80211_CMD_GET_WOWLAN);
7144 goto nla_put_failure;
7147 struct nlattr *nl_wowlan;
7149 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7151 goto nla_put_failure;
7153 if ((rdev->wowlan->any &&
7154 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7155 (rdev->wowlan->disconnect &&
7156 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7157 (rdev->wowlan->magic_pkt &&
7158 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7159 (rdev->wowlan->gtk_rekey_failure &&
7160 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7161 (rdev->wowlan->eap_identity_req &&
7162 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7163 (rdev->wowlan->four_way_handshake &&
7164 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7165 (rdev->wowlan->rfkill_release &&
7166 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7167 goto nla_put_failure;
7169 if (nl80211_send_wowlan_patterns(msg, rdev))
7170 goto nla_put_failure;
7172 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7173 goto nla_put_failure;
7175 nla_nest_end(msg, nl_wowlan);
7178 genlmsg_end(msg, hdr);
7179 return genlmsg_reply(msg, info);
7186 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7187 struct nlattr *attr,
7188 struct cfg80211_wowlan *trig)
7190 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7191 struct cfg80211_wowlan_tcp *cfg;
7192 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7193 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7195 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7198 if (!rdev->wiphy.wowlan.tcp)
7201 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7202 nla_data(attr), nla_len(attr),
7203 nl80211_wowlan_tcp_policy);
7207 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7208 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7209 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7210 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7211 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7212 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7213 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7214 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7217 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7218 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7221 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7222 rdev->wiphy.wowlan.tcp->data_interval_max)
7225 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7226 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7229 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7230 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7233 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7234 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7236 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7237 tokens_size = tokln - sizeof(*tok);
7239 if (!tok->len || tokens_size % tok->len)
7241 if (!rdev->wiphy.wowlan.tcp->tok)
7243 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7245 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7247 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7249 if (tok->offset + tok->len > data_size)
7253 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7254 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7255 if (!rdev->wiphy.wowlan.tcp->seq)
7257 if (seq->len == 0 || seq->len > 4)
7259 if (seq->len + seq->offset > data_size)
7263 size = sizeof(*cfg);
7265 size += wake_size + wake_mask_size;
7266 size += tokens_size;
7268 cfg = kzalloc(size, GFP_KERNEL);
7271 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7272 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7273 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7275 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7276 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7280 /* allocate a socket and port for it and use it */
7281 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7282 IPPROTO_TCP, &cfg->sock, 1);
7287 if (inet_csk_get_port(cfg->sock->sk, port)) {
7288 sock_release(cfg->sock);
7292 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7298 cfg->src_port = port;
7301 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7302 cfg->payload_len = data_size;
7303 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7304 memcpy((void *)cfg->payload,
7305 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7308 cfg->payload_seq = *seq;
7309 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7310 cfg->wake_len = wake_size;
7311 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7312 memcpy((void *)cfg->wake_data,
7313 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7315 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7316 data_size + wake_size;
7317 memcpy((void *)cfg->wake_mask,
7318 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7321 cfg->tokens_size = tokens_size;
7322 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7330 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7333 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
7334 struct cfg80211_wowlan new_triggers = {};
7335 struct cfg80211_wowlan *ntrig;
7336 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7338 bool prev_enabled = rdev->wowlan;
7340 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7341 !rdev->wiphy.wowlan.tcp)
7344 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7345 cfg80211_rdev_free_wowlan(rdev);
7346 rdev->wowlan = NULL;
7350 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7351 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7352 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7353 nl80211_wowlan_policy);
7357 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7358 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7360 new_triggers.any = true;
7363 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7364 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7366 new_triggers.disconnect = true;
7369 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7370 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7372 new_triggers.magic_pkt = true;
7375 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7378 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7379 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7381 new_triggers.gtk_rekey_failure = true;
7384 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7385 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7387 new_triggers.eap_identity_req = true;
7390 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7391 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7393 new_triggers.four_way_handshake = true;
7396 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7397 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7399 new_triggers.rfkill_release = true;
7402 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7405 int rem, pat_len, mask_len, pkt_offset;
7406 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7408 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7411 if (n_patterns > wowlan->n_patterns)
7414 new_triggers.patterns = kcalloc(n_patterns,
7415 sizeof(new_triggers.patterns[0]),
7417 if (!new_triggers.patterns)
7420 new_triggers.n_patterns = n_patterns;
7423 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7425 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7426 nla_data(pat), nla_len(pat), NULL);
7428 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7429 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7431 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7432 mask_len = DIV_ROUND_UP(pat_len, 8);
7433 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7436 if (pat_len > wowlan->pattern_max_len ||
7437 pat_len < wowlan->pattern_min_len)
7440 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7443 pkt_offset = nla_get_u32(
7444 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7445 if (pkt_offset > wowlan->max_pkt_offset)
7447 new_triggers.patterns[i].pkt_offset = pkt_offset;
7449 new_triggers.patterns[i].mask =
7450 kmalloc(mask_len + pat_len, GFP_KERNEL);
7451 if (!new_triggers.patterns[i].mask) {
7455 new_triggers.patterns[i].pattern =
7456 new_triggers.patterns[i].mask + mask_len;
7457 memcpy(new_triggers.patterns[i].mask,
7458 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7460 new_triggers.patterns[i].pattern_len = pat_len;
7461 memcpy(new_triggers.patterns[i].pattern,
7462 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7468 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7469 err = nl80211_parse_wowlan_tcp(
7470 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7476 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7481 cfg80211_rdev_free_wowlan(rdev);
7482 rdev->wowlan = ntrig;
7485 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
7486 rdev_set_wakeup(rdev, rdev->wowlan);
7490 for (i = 0; i < new_triggers.n_patterns; i++)
7491 kfree(new_triggers.patterns[i].mask);
7492 kfree(new_triggers.patterns);
7493 if (new_triggers.tcp && new_triggers.tcp->sock)
7494 sock_release(new_triggers.tcp->sock);
7495 kfree(new_triggers.tcp);
7500 static int nl80211_set_rekey_data(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];
7504 struct wireless_dev *wdev = dev->ieee80211_ptr;
7505 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7506 struct cfg80211_gtk_rekey_data rekey_data;
7509 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7512 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7513 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7514 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7515 nl80211_rekey_policy);
7519 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7521 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7523 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7526 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7528 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7530 memcpy(rekey_data.replay_ctr,
7531 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7532 NL80211_REPLAY_CTR_LEN);
7535 if (!wdev->current_bss) {
7540 if (!rdev->ops->set_rekey_data) {
7545 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
7551 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7552 struct genl_info *info)
7554 struct net_device *dev = info->user_ptr[1];
7555 struct wireless_dev *wdev = dev->ieee80211_ptr;
7557 if (wdev->iftype != NL80211_IFTYPE_AP &&
7558 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7561 if (wdev->ap_unexpected_nlportid)
7564 wdev->ap_unexpected_nlportid = info->snd_portid;
7568 static int nl80211_probe_client(struct sk_buff *skb,
7569 struct genl_info *info)
7571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7572 struct net_device *dev = info->user_ptr[1];
7573 struct wireless_dev *wdev = dev->ieee80211_ptr;
7574 struct sk_buff *msg;
7580 if (wdev->iftype != NL80211_IFTYPE_AP &&
7581 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7584 if (!info->attrs[NL80211_ATTR_MAC])
7587 if (!rdev->ops->probe_client)
7590 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7594 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7595 NL80211_CMD_PROBE_CLIENT);
7602 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7604 err = rdev_probe_client(rdev, dev, addr, &cookie);
7608 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7609 goto nla_put_failure;
7611 genlmsg_end(msg, hdr);
7613 return genlmsg_reply(msg, info);
7622 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7624 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7625 struct cfg80211_beacon_registration *reg, *nreg;
7628 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7631 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7635 /* First, check if already registered. */
7636 spin_lock_bh(&rdev->beacon_registrations_lock);
7637 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7638 if (reg->nlportid == info->snd_portid) {
7643 /* Add it to the list */
7644 nreg->nlportid = info->snd_portid;
7645 list_add(&nreg->list, &rdev->beacon_registrations);
7647 spin_unlock_bh(&rdev->beacon_registrations_lock);
7651 spin_unlock_bh(&rdev->beacon_registrations_lock);
7656 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7659 struct wireless_dev *wdev = info->user_ptr[1];
7662 if (!rdev->ops->start_p2p_device)
7665 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7668 if (wdev->p2p_started)
7671 mutex_lock(&rdev->devlist_mtx);
7672 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7673 mutex_unlock(&rdev->devlist_mtx);
7677 err = rdev_start_p2p_device(rdev, wdev);
7681 wdev->p2p_started = true;
7682 mutex_lock(&rdev->devlist_mtx);
7684 mutex_unlock(&rdev->devlist_mtx);
7689 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7691 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7692 struct wireless_dev *wdev = info->user_ptr[1];
7694 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7697 if (!rdev->ops->stop_p2p_device)
7700 if (!wdev->p2p_started)
7703 rdev_stop_p2p_device(rdev, wdev);
7704 wdev->p2p_started = false;
7706 mutex_lock(&rdev->devlist_mtx);
7708 mutex_unlock(&rdev->devlist_mtx);
7710 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7711 rdev->scan_req->aborted = true;
7712 ___cfg80211_scan_done(rdev, true);
7718 #define NL80211_FLAG_NEED_WIPHY 0x01
7719 #define NL80211_FLAG_NEED_NETDEV 0x02
7720 #define NL80211_FLAG_NEED_RTNL 0x04
7721 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7722 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7723 NL80211_FLAG_CHECK_NETDEV_UP)
7724 #define NL80211_FLAG_NEED_WDEV 0x10
7725 /* If a netdev is associated, it must be UP, P2P must be started */
7726 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7727 NL80211_FLAG_CHECK_NETDEV_UP)
7729 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7730 struct genl_info *info)
7732 struct cfg80211_registered_device *rdev;
7733 struct wireless_dev *wdev;
7734 struct net_device *dev;
7735 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7740 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
7741 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
7745 return PTR_ERR(rdev);
7747 info->user_ptr[0] = rdev;
7748 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7749 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7750 mutex_lock(&cfg80211_mutex);
7751 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7754 mutex_unlock(&cfg80211_mutex);
7757 return PTR_ERR(wdev);
7761 rdev = wiphy_to_dev(wdev->wiphy);
7763 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7765 mutex_unlock(&cfg80211_mutex);
7771 info->user_ptr[1] = dev;
7773 info->user_ptr[1] = wdev;
7777 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7778 !netif_running(dev)) {
7779 mutex_unlock(&cfg80211_mutex);
7786 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7787 if (!wdev->p2p_started) {
7788 mutex_unlock(&cfg80211_mutex);
7795 cfg80211_lock_rdev(rdev);
7797 mutex_unlock(&cfg80211_mutex);
7799 info->user_ptr[0] = rdev;
7805 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7806 struct genl_info *info)
7808 if (info->user_ptr[0])
7809 cfg80211_unlock_rdev(info->user_ptr[0]);
7810 if (info->user_ptr[1]) {
7811 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7812 struct wireless_dev *wdev = info->user_ptr[1];
7815 dev_put(wdev->netdev);
7817 dev_put(info->user_ptr[1]);
7820 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7824 static struct genl_ops nl80211_ops[] = {
7826 .cmd = NL80211_CMD_GET_WIPHY,
7827 .doit = nl80211_get_wiphy,
7828 .dumpit = nl80211_dump_wiphy,
7829 .policy = nl80211_policy,
7830 /* can be retrieved by unprivileged users */
7831 .internal_flags = NL80211_FLAG_NEED_WIPHY,
7834 .cmd = NL80211_CMD_SET_WIPHY,
7835 .doit = nl80211_set_wiphy,
7836 .policy = nl80211_policy,
7837 .flags = GENL_ADMIN_PERM,
7838 .internal_flags = NL80211_FLAG_NEED_RTNL,
7841 .cmd = NL80211_CMD_GET_INTERFACE,
7842 .doit = nl80211_get_interface,
7843 .dumpit = nl80211_dump_interface,
7844 .policy = nl80211_policy,
7845 /* can be retrieved by unprivileged users */
7846 .internal_flags = NL80211_FLAG_NEED_WDEV,
7849 .cmd = NL80211_CMD_SET_INTERFACE,
7850 .doit = nl80211_set_interface,
7851 .policy = nl80211_policy,
7852 .flags = GENL_ADMIN_PERM,
7853 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7854 NL80211_FLAG_NEED_RTNL,
7857 .cmd = NL80211_CMD_NEW_INTERFACE,
7858 .doit = nl80211_new_interface,
7859 .policy = nl80211_policy,
7860 .flags = GENL_ADMIN_PERM,
7861 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7862 NL80211_FLAG_NEED_RTNL,
7865 .cmd = NL80211_CMD_DEL_INTERFACE,
7866 .doit = nl80211_del_interface,
7867 .policy = nl80211_policy,
7868 .flags = GENL_ADMIN_PERM,
7869 .internal_flags = NL80211_FLAG_NEED_WDEV |
7870 NL80211_FLAG_NEED_RTNL,
7873 .cmd = NL80211_CMD_GET_KEY,
7874 .doit = nl80211_get_key,
7875 .policy = nl80211_policy,
7876 .flags = GENL_ADMIN_PERM,
7877 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7878 NL80211_FLAG_NEED_RTNL,
7881 .cmd = NL80211_CMD_SET_KEY,
7882 .doit = nl80211_set_key,
7883 .policy = nl80211_policy,
7884 .flags = GENL_ADMIN_PERM,
7885 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7886 NL80211_FLAG_NEED_RTNL,
7889 .cmd = NL80211_CMD_NEW_KEY,
7890 .doit = nl80211_new_key,
7891 .policy = nl80211_policy,
7892 .flags = GENL_ADMIN_PERM,
7893 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7894 NL80211_FLAG_NEED_RTNL,
7897 .cmd = NL80211_CMD_DEL_KEY,
7898 .doit = nl80211_del_key,
7899 .policy = nl80211_policy,
7900 .flags = GENL_ADMIN_PERM,
7901 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7902 NL80211_FLAG_NEED_RTNL,
7905 .cmd = NL80211_CMD_SET_BEACON,
7906 .policy = nl80211_policy,
7907 .flags = GENL_ADMIN_PERM,
7908 .doit = nl80211_set_beacon,
7909 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7910 NL80211_FLAG_NEED_RTNL,
7913 .cmd = NL80211_CMD_START_AP,
7914 .policy = nl80211_policy,
7915 .flags = GENL_ADMIN_PERM,
7916 .doit = nl80211_start_ap,
7917 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7918 NL80211_FLAG_NEED_RTNL,
7921 .cmd = NL80211_CMD_STOP_AP,
7922 .policy = nl80211_policy,
7923 .flags = GENL_ADMIN_PERM,
7924 .doit = nl80211_stop_ap,
7925 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7926 NL80211_FLAG_NEED_RTNL,
7929 .cmd = NL80211_CMD_GET_STATION,
7930 .doit = nl80211_get_station,
7931 .dumpit = nl80211_dump_station,
7932 .policy = nl80211_policy,
7933 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7934 NL80211_FLAG_NEED_RTNL,
7937 .cmd = NL80211_CMD_SET_STATION,
7938 .doit = nl80211_set_station,
7939 .policy = nl80211_policy,
7940 .flags = GENL_ADMIN_PERM,
7941 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7942 NL80211_FLAG_NEED_RTNL,
7945 .cmd = NL80211_CMD_NEW_STATION,
7946 .doit = nl80211_new_station,
7947 .policy = nl80211_policy,
7948 .flags = GENL_ADMIN_PERM,
7949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7950 NL80211_FLAG_NEED_RTNL,
7953 .cmd = NL80211_CMD_DEL_STATION,
7954 .doit = nl80211_del_station,
7955 .policy = nl80211_policy,
7956 .flags = GENL_ADMIN_PERM,
7957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7958 NL80211_FLAG_NEED_RTNL,
7961 .cmd = NL80211_CMD_GET_MPATH,
7962 .doit = nl80211_get_mpath,
7963 .dumpit = nl80211_dump_mpath,
7964 .policy = nl80211_policy,
7965 .flags = GENL_ADMIN_PERM,
7966 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7967 NL80211_FLAG_NEED_RTNL,
7970 .cmd = NL80211_CMD_SET_MPATH,
7971 .doit = nl80211_set_mpath,
7972 .policy = nl80211_policy,
7973 .flags = GENL_ADMIN_PERM,
7974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7975 NL80211_FLAG_NEED_RTNL,
7978 .cmd = NL80211_CMD_NEW_MPATH,
7979 .doit = nl80211_new_mpath,
7980 .policy = nl80211_policy,
7981 .flags = GENL_ADMIN_PERM,
7982 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7983 NL80211_FLAG_NEED_RTNL,
7986 .cmd = NL80211_CMD_DEL_MPATH,
7987 .doit = nl80211_del_mpath,
7988 .policy = nl80211_policy,
7989 .flags = GENL_ADMIN_PERM,
7990 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7991 NL80211_FLAG_NEED_RTNL,
7994 .cmd = NL80211_CMD_SET_BSS,
7995 .doit = nl80211_set_bss,
7996 .policy = nl80211_policy,
7997 .flags = GENL_ADMIN_PERM,
7998 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7999 NL80211_FLAG_NEED_RTNL,
8002 .cmd = NL80211_CMD_GET_REG,
8003 .doit = nl80211_get_reg,
8004 .policy = nl80211_policy,
8005 /* can be retrieved by unprivileged users */
8008 .cmd = NL80211_CMD_SET_REG,
8009 .doit = nl80211_set_reg,
8010 .policy = nl80211_policy,
8011 .flags = GENL_ADMIN_PERM,
8014 .cmd = NL80211_CMD_REQ_SET_REG,
8015 .doit = nl80211_req_set_reg,
8016 .policy = nl80211_policy,
8017 .flags = GENL_ADMIN_PERM,
8020 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8021 .doit = nl80211_get_mesh_config,
8022 .policy = nl80211_policy,
8023 /* can be retrieved by unprivileged users */
8024 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8025 NL80211_FLAG_NEED_RTNL,
8028 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8029 .doit = nl80211_update_mesh_config,
8030 .policy = nl80211_policy,
8031 .flags = GENL_ADMIN_PERM,
8032 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8033 NL80211_FLAG_NEED_RTNL,
8036 .cmd = NL80211_CMD_TRIGGER_SCAN,
8037 .doit = nl80211_trigger_scan,
8038 .policy = nl80211_policy,
8039 .flags = GENL_ADMIN_PERM,
8040 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8041 NL80211_FLAG_NEED_RTNL,
8044 .cmd = NL80211_CMD_GET_SCAN,
8045 .policy = nl80211_policy,
8046 .dumpit = nl80211_dump_scan,
8049 .cmd = NL80211_CMD_START_SCHED_SCAN,
8050 .doit = nl80211_start_sched_scan,
8051 .policy = nl80211_policy,
8052 .flags = GENL_ADMIN_PERM,
8053 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8054 NL80211_FLAG_NEED_RTNL,
8057 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8058 .doit = nl80211_stop_sched_scan,
8059 .policy = nl80211_policy,
8060 .flags = GENL_ADMIN_PERM,
8061 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8062 NL80211_FLAG_NEED_RTNL,
8065 .cmd = NL80211_CMD_AUTHENTICATE,
8066 .doit = nl80211_authenticate,
8067 .policy = nl80211_policy,
8068 .flags = GENL_ADMIN_PERM,
8069 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8070 NL80211_FLAG_NEED_RTNL,
8073 .cmd = NL80211_CMD_ASSOCIATE,
8074 .doit = nl80211_associate,
8075 .policy = nl80211_policy,
8076 .flags = GENL_ADMIN_PERM,
8077 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8078 NL80211_FLAG_NEED_RTNL,
8081 .cmd = NL80211_CMD_DEAUTHENTICATE,
8082 .doit = nl80211_deauthenticate,
8083 .policy = nl80211_policy,
8084 .flags = GENL_ADMIN_PERM,
8085 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8086 NL80211_FLAG_NEED_RTNL,
8089 .cmd = NL80211_CMD_DISASSOCIATE,
8090 .doit = nl80211_disassociate,
8091 .policy = nl80211_policy,
8092 .flags = GENL_ADMIN_PERM,
8093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8094 NL80211_FLAG_NEED_RTNL,
8097 .cmd = NL80211_CMD_JOIN_IBSS,
8098 .doit = nl80211_join_ibss,
8099 .policy = nl80211_policy,
8100 .flags = GENL_ADMIN_PERM,
8101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8102 NL80211_FLAG_NEED_RTNL,
8105 .cmd = NL80211_CMD_LEAVE_IBSS,
8106 .doit = nl80211_leave_ibss,
8107 .policy = nl80211_policy,
8108 .flags = GENL_ADMIN_PERM,
8109 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8110 NL80211_FLAG_NEED_RTNL,
8112 #ifdef CONFIG_NL80211_TESTMODE
8114 .cmd = NL80211_CMD_TESTMODE,
8115 .doit = nl80211_testmode_do,
8116 .dumpit = nl80211_testmode_dump,
8117 .policy = nl80211_policy,
8118 .flags = GENL_ADMIN_PERM,
8119 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8120 NL80211_FLAG_NEED_RTNL,
8124 .cmd = NL80211_CMD_CONNECT,
8125 .doit = nl80211_connect,
8126 .policy = nl80211_policy,
8127 .flags = GENL_ADMIN_PERM,
8128 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8129 NL80211_FLAG_NEED_RTNL,
8132 .cmd = NL80211_CMD_DISCONNECT,
8133 .doit = nl80211_disconnect,
8134 .policy = nl80211_policy,
8135 .flags = GENL_ADMIN_PERM,
8136 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8137 NL80211_FLAG_NEED_RTNL,
8140 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8141 .doit = nl80211_wiphy_netns,
8142 .policy = nl80211_policy,
8143 .flags = GENL_ADMIN_PERM,
8144 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8145 NL80211_FLAG_NEED_RTNL,
8148 .cmd = NL80211_CMD_GET_SURVEY,
8149 .policy = nl80211_policy,
8150 .dumpit = nl80211_dump_survey,
8153 .cmd = NL80211_CMD_SET_PMKSA,
8154 .doit = nl80211_setdel_pmksa,
8155 .policy = nl80211_policy,
8156 .flags = GENL_ADMIN_PERM,
8157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8158 NL80211_FLAG_NEED_RTNL,
8161 .cmd = NL80211_CMD_DEL_PMKSA,
8162 .doit = nl80211_setdel_pmksa,
8163 .policy = nl80211_policy,
8164 .flags = GENL_ADMIN_PERM,
8165 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8166 NL80211_FLAG_NEED_RTNL,
8169 .cmd = NL80211_CMD_FLUSH_PMKSA,
8170 .doit = nl80211_flush_pmksa,
8171 .policy = nl80211_policy,
8172 .flags = GENL_ADMIN_PERM,
8173 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8174 NL80211_FLAG_NEED_RTNL,
8177 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8178 .doit = nl80211_remain_on_channel,
8179 .policy = nl80211_policy,
8180 .flags = GENL_ADMIN_PERM,
8181 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8182 NL80211_FLAG_NEED_RTNL,
8185 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8186 .doit = nl80211_cancel_remain_on_channel,
8187 .policy = nl80211_policy,
8188 .flags = GENL_ADMIN_PERM,
8189 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8190 NL80211_FLAG_NEED_RTNL,
8193 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8194 .doit = nl80211_set_tx_bitrate_mask,
8195 .policy = nl80211_policy,
8196 .flags = GENL_ADMIN_PERM,
8197 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8198 NL80211_FLAG_NEED_RTNL,
8201 .cmd = NL80211_CMD_REGISTER_FRAME,
8202 .doit = nl80211_register_mgmt,
8203 .policy = nl80211_policy,
8204 .flags = GENL_ADMIN_PERM,
8205 .internal_flags = NL80211_FLAG_NEED_WDEV |
8206 NL80211_FLAG_NEED_RTNL,
8209 .cmd = NL80211_CMD_FRAME,
8210 .doit = nl80211_tx_mgmt,
8211 .policy = nl80211_policy,
8212 .flags = GENL_ADMIN_PERM,
8213 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8214 NL80211_FLAG_NEED_RTNL,
8217 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8218 .doit = nl80211_tx_mgmt_cancel_wait,
8219 .policy = nl80211_policy,
8220 .flags = GENL_ADMIN_PERM,
8221 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8222 NL80211_FLAG_NEED_RTNL,
8225 .cmd = NL80211_CMD_SET_POWER_SAVE,
8226 .doit = nl80211_set_power_save,
8227 .policy = nl80211_policy,
8228 .flags = GENL_ADMIN_PERM,
8229 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8230 NL80211_FLAG_NEED_RTNL,
8233 .cmd = NL80211_CMD_GET_POWER_SAVE,
8234 .doit = nl80211_get_power_save,
8235 .policy = nl80211_policy,
8236 /* can be retrieved by unprivileged users */
8237 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8238 NL80211_FLAG_NEED_RTNL,
8241 .cmd = NL80211_CMD_SET_CQM,
8242 .doit = nl80211_set_cqm,
8243 .policy = nl80211_policy,
8244 .flags = GENL_ADMIN_PERM,
8245 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8246 NL80211_FLAG_NEED_RTNL,
8249 .cmd = NL80211_CMD_SET_CHANNEL,
8250 .doit = nl80211_set_channel,
8251 .policy = nl80211_policy,
8252 .flags = GENL_ADMIN_PERM,
8253 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8254 NL80211_FLAG_NEED_RTNL,
8257 .cmd = NL80211_CMD_SET_WDS_PEER,
8258 .doit = nl80211_set_wds_peer,
8259 .policy = nl80211_policy,
8260 .flags = GENL_ADMIN_PERM,
8261 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8262 NL80211_FLAG_NEED_RTNL,
8265 .cmd = NL80211_CMD_JOIN_MESH,
8266 .doit = nl80211_join_mesh,
8267 .policy = nl80211_policy,
8268 .flags = GENL_ADMIN_PERM,
8269 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8270 NL80211_FLAG_NEED_RTNL,
8273 .cmd = NL80211_CMD_LEAVE_MESH,
8274 .doit = nl80211_leave_mesh,
8275 .policy = nl80211_policy,
8276 .flags = GENL_ADMIN_PERM,
8277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8278 NL80211_FLAG_NEED_RTNL,
8282 .cmd = NL80211_CMD_GET_WOWLAN,
8283 .doit = nl80211_get_wowlan,
8284 .policy = nl80211_policy,
8285 /* can be retrieved by unprivileged users */
8286 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8287 NL80211_FLAG_NEED_RTNL,
8290 .cmd = NL80211_CMD_SET_WOWLAN,
8291 .doit = nl80211_set_wowlan,
8292 .policy = nl80211_policy,
8293 .flags = GENL_ADMIN_PERM,
8294 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8295 NL80211_FLAG_NEED_RTNL,
8299 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8300 .doit = nl80211_set_rekey_data,
8301 .policy = nl80211_policy,
8302 .flags = GENL_ADMIN_PERM,
8303 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8304 NL80211_FLAG_NEED_RTNL,
8307 .cmd = NL80211_CMD_TDLS_MGMT,
8308 .doit = nl80211_tdls_mgmt,
8309 .policy = nl80211_policy,
8310 .flags = GENL_ADMIN_PERM,
8311 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8312 NL80211_FLAG_NEED_RTNL,
8315 .cmd = NL80211_CMD_TDLS_OPER,
8316 .doit = nl80211_tdls_oper,
8317 .policy = nl80211_policy,
8318 .flags = GENL_ADMIN_PERM,
8319 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8320 NL80211_FLAG_NEED_RTNL,
8323 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8324 .doit = nl80211_register_unexpected_frame,
8325 .policy = nl80211_policy,
8326 .flags = GENL_ADMIN_PERM,
8327 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8328 NL80211_FLAG_NEED_RTNL,
8331 .cmd = NL80211_CMD_PROBE_CLIENT,
8332 .doit = nl80211_probe_client,
8333 .policy = nl80211_policy,
8334 .flags = GENL_ADMIN_PERM,
8335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8336 NL80211_FLAG_NEED_RTNL,
8339 .cmd = NL80211_CMD_REGISTER_BEACONS,
8340 .doit = nl80211_register_beacons,
8341 .policy = nl80211_policy,
8342 .flags = GENL_ADMIN_PERM,
8343 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8344 NL80211_FLAG_NEED_RTNL,
8347 .cmd = NL80211_CMD_SET_NOACK_MAP,
8348 .doit = nl80211_set_noack_map,
8349 .policy = nl80211_policy,
8350 .flags = GENL_ADMIN_PERM,
8351 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8352 NL80211_FLAG_NEED_RTNL,
8355 .cmd = NL80211_CMD_START_P2P_DEVICE,
8356 .doit = nl80211_start_p2p_device,
8357 .policy = nl80211_policy,
8358 .flags = GENL_ADMIN_PERM,
8359 .internal_flags = NL80211_FLAG_NEED_WDEV |
8360 NL80211_FLAG_NEED_RTNL,
8363 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8364 .doit = nl80211_stop_p2p_device,
8365 .policy = nl80211_policy,
8366 .flags = GENL_ADMIN_PERM,
8367 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8368 NL80211_FLAG_NEED_RTNL,
8371 .cmd = NL80211_CMD_SET_MCAST_RATE,
8372 .doit = nl80211_set_mcast_rate,
8373 .policy = nl80211_policy,
8374 .flags = GENL_ADMIN_PERM,
8375 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8376 NL80211_FLAG_NEED_RTNL,
8379 .cmd = NL80211_CMD_SET_MAC_ACL,
8380 .doit = nl80211_set_mac_acl,
8381 .policy = nl80211_policy,
8382 .flags = GENL_ADMIN_PERM,
8383 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8384 NL80211_FLAG_NEED_RTNL,
8387 .cmd = NL80211_CMD_RADAR_DETECT,
8388 .doit = nl80211_start_radar_detection,
8389 .policy = nl80211_policy,
8390 .flags = GENL_ADMIN_PERM,
8391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8392 NL80211_FLAG_NEED_RTNL,
8396 static struct genl_multicast_group nl80211_mlme_mcgrp = {
8400 /* multicast groups */
8401 static struct genl_multicast_group nl80211_config_mcgrp = {
8404 static struct genl_multicast_group nl80211_scan_mcgrp = {
8407 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8408 .name = "regulatory",
8411 /* notification functions */
8413 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8415 struct sk_buff *msg;
8417 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8421 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
8426 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8427 nl80211_config_mcgrp.id, GFP_KERNEL);
8430 static int nl80211_add_scan_req(struct sk_buff *msg,
8431 struct cfg80211_registered_device *rdev)
8433 struct cfg80211_scan_request *req = rdev->scan_req;
8434 struct nlattr *nest;
8437 ASSERT_RDEV_LOCK(rdev);
8442 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8444 goto nla_put_failure;
8445 for (i = 0; i < req->n_ssids; i++) {
8446 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8447 goto nla_put_failure;
8449 nla_nest_end(msg, nest);
8451 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8453 goto nla_put_failure;
8454 for (i = 0; i < req->n_channels; i++) {
8455 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8456 goto nla_put_failure;
8458 nla_nest_end(msg, nest);
8461 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8462 goto nla_put_failure;
8465 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8472 static int nl80211_send_scan_msg(struct sk_buff *msg,
8473 struct cfg80211_registered_device *rdev,
8474 struct wireless_dev *wdev,
8475 u32 portid, u32 seq, int flags,
8480 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
8484 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8485 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8486 wdev->netdev->ifindex)) ||
8487 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
8488 goto nla_put_failure;
8490 /* ignore errors and send incomplete event anyway */
8491 nl80211_add_scan_req(msg, rdev);
8493 return genlmsg_end(msg, hdr);
8496 genlmsg_cancel(msg, hdr);
8501 nl80211_send_sched_scan_msg(struct sk_buff *msg,
8502 struct cfg80211_registered_device *rdev,
8503 struct net_device *netdev,
8504 u32 portid, u32 seq, int flags, u32 cmd)
8508 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
8512 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8513 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8514 goto nla_put_failure;
8516 return genlmsg_end(msg, hdr);
8519 genlmsg_cancel(msg, hdr);
8523 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
8524 struct wireless_dev *wdev)
8526 struct sk_buff *msg;
8528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8532 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8533 NL80211_CMD_TRIGGER_SCAN) < 0) {
8538 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8539 nl80211_scan_mcgrp.id, GFP_KERNEL);
8542 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
8543 struct wireless_dev *wdev)
8545 struct sk_buff *msg;
8547 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8551 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8552 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
8557 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8558 nl80211_scan_mcgrp.id, GFP_KERNEL);
8561 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
8562 struct wireless_dev *wdev)
8564 struct sk_buff *msg;
8566 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8570 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8571 NL80211_CMD_SCAN_ABORTED) < 0) {
8576 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8577 nl80211_scan_mcgrp.id, GFP_KERNEL);
8580 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8581 struct net_device *netdev)
8583 struct sk_buff *msg;
8585 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8589 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8590 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8595 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8596 nl80211_scan_mcgrp.id, GFP_KERNEL);
8599 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8600 struct net_device *netdev, u32 cmd)
8602 struct sk_buff *msg;
8604 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8608 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8613 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8614 nl80211_scan_mcgrp.id, GFP_KERNEL);
8618 * This can happen on global regulatory changes or device specific settings
8619 * based on custom world regulatory domains.
8621 void nl80211_send_reg_change_event(struct regulatory_request *request)
8623 struct sk_buff *msg;
8626 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8630 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8636 /* Userspace can always count this one always being set */
8637 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8638 goto nla_put_failure;
8640 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8641 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8642 NL80211_REGDOM_TYPE_WORLD))
8643 goto nla_put_failure;
8644 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8645 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8646 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8647 goto nla_put_failure;
8648 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8649 request->intersect) {
8650 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8651 NL80211_REGDOM_TYPE_INTERSECTION))
8652 goto nla_put_failure;
8654 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8655 NL80211_REGDOM_TYPE_COUNTRY) ||
8656 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8658 goto nla_put_failure;
8661 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
8662 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8663 goto nla_put_failure;
8665 genlmsg_end(msg, hdr);
8668 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8675 genlmsg_cancel(msg, hdr);
8679 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8680 struct net_device *netdev,
8681 const u8 *buf, size_t len,
8682 enum nl80211_commands cmd, gfp_t gfp)
8684 struct sk_buff *msg;
8687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8691 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8697 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8698 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8699 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8700 goto nla_put_failure;
8702 genlmsg_end(msg, hdr);
8704 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8705 nl80211_mlme_mcgrp.id, gfp);
8709 genlmsg_cancel(msg, hdr);
8713 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
8714 struct net_device *netdev, const u8 *buf,
8715 size_t len, gfp_t gfp)
8717 nl80211_send_mlme_event(rdev, netdev, buf, len,
8718 NL80211_CMD_AUTHENTICATE, gfp);
8721 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8722 struct net_device *netdev, const u8 *buf,
8723 size_t len, gfp_t gfp)
8725 nl80211_send_mlme_event(rdev, netdev, buf, len,
8726 NL80211_CMD_ASSOCIATE, gfp);
8729 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
8730 struct net_device *netdev, const u8 *buf,
8731 size_t len, gfp_t gfp)
8733 nl80211_send_mlme_event(rdev, netdev, buf, len,
8734 NL80211_CMD_DEAUTHENTICATE, gfp);
8737 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8738 struct net_device *netdev, const u8 *buf,
8739 size_t len, gfp_t gfp)
8741 nl80211_send_mlme_event(rdev, netdev, buf, len,
8742 NL80211_CMD_DISASSOCIATE, gfp);
8745 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8746 struct net_device *netdev, const u8 *buf,
8747 size_t len, gfp_t gfp)
8749 nl80211_send_mlme_event(rdev, netdev, buf, len,
8750 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8753 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8754 struct net_device *netdev, const u8 *buf,
8755 size_t len, gfp_t gfp)
8757 nl80211_send_mlme_event(rdev, netdev, buf, len,
8758 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8761 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8762 struct net_device *netdev, int cmd,
8763 const u8 *addr, gfp_t gfp)
8765 struct sk_buff *msg;
8768 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8772 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8778 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8779 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8780 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8781 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8782 goto nla_put_failure;
8784 genlmsg_end(msg, hdr);
8786 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8787 nl80211_mlme_mcgrp.id, gfp);
8791 genlmsg_cancel(msg, hdr);
8795 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
8796 struct net_device *netdev, const u8 *addr,
8799 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
8803 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
8804 struct net_device *netdev, const u8 *addr,
8807 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8811 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8812 struct net_device *netdev, const u8 *bssid,
8813 const u8 *req_ie, size_t req_ie_len,
8814 const u8 *resp_ie, size_t resp_ie_len,
8815 u16 status, gfp_t gfp)
8817 struct sk_buff *msg;
8820 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8824 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8830 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8831 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8832 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8833 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8835 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8837 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8838 goto nla_put_failure;
8840 genlmsg_end(msg, hdr);
8842 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8843 nl80211_mlme_mcgrp.id, gfp);
8847 genlmsg_cancel(msg, hdr);
8852 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8853 struct net_device *netdev, const u8 *bssid,
8854 const u8 *req_ie, size_t req_ie_len,
8855 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8857 struct sk_buff *msg;
8860 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8864 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8870 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8871 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8872 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8874 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8876 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8877 goto nla_put_failure;
8879 genlmsg_end(msg, hdr);
8881 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8882 nl80211_mlme_mcgrp.id, gfp);
8886 genlmsg_cancel(msg, hdr);
8891 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8892 struct net_device *netdev, u16 reason,
8893 const u8 *ie, size_t ie_len, bool from_ap)
8895 struct sk_buff *msg;
8898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8902 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8908 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8909 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8910 (from_ap && reason &&
8911 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8913 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8914 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8915 goto nla_put_failure;
8917 genlmsg_end(msg, hdr);
8919 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8920 nl80211_mlme_mcgrp.id, GFP_KERNEL);
8924 genlmsg_cancel(msg, hdr);
8929 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8930 struct net_device *netdev, const u8 *bssid,
8933 struct sk_buff *msg;
8936 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8940 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8946 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8947 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8948 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8949 goto nla_put_failure;
8951 genlmsg_end(msg, hdr);
8953 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8954 nl80211_mlme_mcgrp.id, gfp);
8958 genlmsg_cancel(msg, hdr);
8962 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8963 struct net_device *netdev,
8964 const u8 *macaddr, const u8* ie, u8 ie_len,
8967 struct sk_buff *msg;
8970 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8974 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8980 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8981 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8982 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8984 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8985 goto nla_put_failure;
8987 genlmsg_end(msg, hdr);
8989 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8990 nl80211_mlme_mcgrp.id, gfp);
8994 genlmsg_cancel(msg, hdr);
8998 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8999 struct net_device *netdev, const u8 *addr,
9000 enum nl80211_key_type key_type, int key_id,
9001 const u8 *tsc, gfp_t gfp)
9003 struct sk_buff *msg;
9006 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9010 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9016 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9017 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9018 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9019 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9021 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9022 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9023 goto nla_put_failure;
9025 genlmsg_end(msg, hdr);
9027 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9028 nl80211_mlme_mcgrp.id, gfp);
9032 genlmsg_cancel(msg, hdr);
9036 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9037 struct ieee80211_channel *channel_before,
9038 struct ieee80211_channel *channel_after)
9040 struct sk_buff *msg;
9042 struct nlattr *nl_freq;
9044 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
9048 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9055 * Since we are applying the beacon hint to a wiphy we know its
9056 * wiphy_idx is valid
9058 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9059 goto nla_put_failure;
9062 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9064 goto nla_put_failure;
9065 if (nl80211_msg_put_channel(msg, channel_before))
9066 goto nla_put_failure;
9067 nla_nest_end(msg, nl_freq);
9070 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9072 goto nla_put_failure;
9073 if (nl80211_msg_put_channel(msg, channel_after))
9074 goto nla_put_failure;
9075 nla_nest_end(msg, nl_freq);
9077 genlmsg_end(msg, hdr);
9080 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9087 genlmsg_cancel(msg, hdr);
9091 static void nl80211_send_remain_on_chan_event(
9092 int cmd, struct cfg80211_registered_device *rdev,
9093 struct wireless_dev *wdev, u64 cookie,
9094 struct ieee80211_channel *chan,
9095 unsigned int duration, gfp_t gfp)
9097 struct sk_buff *msg;
9100 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9104 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9110 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9111 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9112 wdev->netdev->ifindex)) ||
9113 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9114 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
9115 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9116 NL80211_CHAN_NO_HT) ||
9117 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9118 goto nla_put_failure;
9120 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9121 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9122 goto nla_put_failure;
9124 genlmsg_end(msg, hdr);
9126 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9127 nl80211_mlme_mcgrp.id, gfp);
9131 genlmsg_cancel(msg, hdr);
9135 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
9136 struct wireless_dev *wdev, u64 cookie,
9137 struct ieee80211_channel *chan,
9138 unsigned int duration, gfp_t gfp)
9140 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
9141 rdev, wdev, cookie, chan,
9145 void nl80211_send_remain_on_channel_cancel(
9146 struct cfg80211_registered_device *rdev,
9147 struct wireless_dev *wdev,
9148 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9150 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9151 rdev, wdev, cookie, chan, 0, gfp);
9154 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
9155 struct net_device *dev, const u8 *mac_addr,
9156 struct station_info *sinfo, gfp_t gfp)
9158 struct sk_buff *msg;
9160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9164 if (nl80211_send_station(msg, 0, 0, 0,
9165 rdev, dev, mac_addr, sinfo) < 0) {
9170 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9171 nl80211_mlme_mcgrp.id, gfp);
9174 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
9175 struct net_device *dev, const u8 *mac_addr,
9178 struct sk_buff *msg;
9181 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9185 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9191 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9192 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9193 goto nla_put_failure;
9195 genlmsg_end(msg, hdr);
9197 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9198 nl80211_mlme_mcgrp.id, gfp);
9202 genlmsg_cancel(msg, hdr);
9206 void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
9207 struct net_device *dev, const u8 *mac_addr,
9208 enum nl80211_connect_failed_reason reason,
9211 struct sk_buff *msg;
9214 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9218 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9224 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9225 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9226 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9227 goto nla_put_failure;
9229 genlmsg_end(msg, hdr);
9231 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9232 nl80211_mlme_mcgrp.id, gfp);
9236 genlmsg_cancel(msg, hdr);
9240 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9241 const u8 *addr, gfp_t gfp)
9243 struct wireless_dev *wdev = dev->ieee80211_ptr;
9244 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9245 struct sk_buff *msg;
9248 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
9253 msg = nlmsg_new(100, gfp);
9257 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9263 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9264 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9265 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9266 goto nla_put_failure;
9268 err = genlmsg_end(msg, hdr);
9274 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9278 genlmsg_cancel(msg, hdr);
9283 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
9285 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9289 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
9290 const u8 *addr, gfp_t gfp)
9292 return __nl80211_unexpected_frame(dev,
9293 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9297 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
9298 struct wireless_dev *wdev, u32 nlportid,
9299 int freq, int sig_dbm,
9300 const u8 *buf, size_t len, gfp_t gfp)
9302 struct net_device *netdev = wdev->netdev;
9303 struct sk_buff *msg;
9306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9310 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9317 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9318 netdev->ifindex)) ||
9319 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9321 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9322 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9323 goto nla_put_failure;
9325 genlmsg_end(msg, hdr);
9327 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9330 genlmsg_cancel(msg, hdr);
9335 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
9336 struct wireless_dev *wdev, u64 cookie,
9337 const u8 *buf, size_t len, bool ack,
9340 struct net_device *netdev = wdev->netdev;
9341 struct sk_buff *msg;
9344 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9348 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
9354 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9355 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9356 netdev->ifindex)) ||
9357 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9358 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9359 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9360 goto nla_put_failure;
9362 genlmsg_end(msg, hdr);
9364 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9368 genlmsg_cancel(msg, hdr);
9373 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
9374 struct net_device *netdev,
9375 enum nl80211_cqm_rssi_threshold_event rssi_event,
9378 struct sk_buff *msg;
9379 struct nlattr *pinfoattr;
9382 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9386 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9392 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9393 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9394 goto nla_put_failure;
9396 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9398 goto nla_put_failure;
9400 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9402 goto nla_put_failure;
9404 nla_nest_end(msg, pinfoattr);
9406 genlmsg_end(msg, hdr);
9408 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9409 nl80211_mlme_mcgrp.id, gfp);
9413 genlmsg_cancel(msg, hdr);
9417 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9418 struct net_device *netdev, const u8 *bssid,
9419 const u8 *replay_ctr, gfp_t gfp)
9421 struct sk_buff *msg;
9422 struct nlattr *rekey_attr;
9425 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9429 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9435 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9436 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9437 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9438 goto nla_put_failure;
9440 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9442 goto nla_put_failure;
9444 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
9445 NL80211_REPLAY_CTR_LEN, replay_ctr))
9446 goto nla_put_failure;
9448 nla_nest_end(msg, rekey_attr);
9450 genlmsg_end(msg, hdr);
9452 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9453 nl80211_mlme_mcgrp.id, gfp);
9457 genlmsg_cancel(msg, hdr);
9461 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
9462 struct net_device *netdev, int index,
9463 const u8 *bssid, bool preauth, gfp_t gfp)
9465 struct sk_buff *msg;
9466 struct nlattr *attr;
9469 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9473 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
9479 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9480 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9481 goto nla_put_failure;
9483 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
9485 goto nla_put_failure;
9487 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
9488 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
9490 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
9491 goto nla_put_failure;
9493 nla_nest_end(msg, attr);
9495 genlmsg_end(msg, hdr);
9497 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9498 nl80211_mlme_mcgrp.id, gfp);
9502 genlmsg_cancel(msg, hdr);
9506 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
9507 struct net_device *netdev,
9508 struct cfg80211_chan_def *chandef, gfp_t gfp)
9510 struct sk_buff *msg;
9513 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9517 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
9523 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9524 goto nla_put_failure;
9526 if (nl80211_send_chandef(msg, chandef))
9527 goto nla_put_failure;
9529 genlmsg_end(msg, hdr);
9531 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9532 nl80211_mlme_mcgrp.id, gfp);
9536 genlmsg_cancel(msg, hdr);
9541 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9542 struct net_device *netdev, const u8 *peer,
9543 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9545 struct sk_buff *msg;
9546 struct nlattr *pinfoattr;
9549 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9559 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9560 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9561 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9562 goto nla_put_failure;
9564 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9566 goto nla_put_failure;
9568 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9569 goto nla_put_failure;
9571 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9572 goto nla_put_failure;
9574 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9575 goto nla_put_failure;
9577 nla_nest_end(msg, pinfoattr);
9579 genlmsg_end(msg, hdr);
9581 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9582 nl80211_mlme_mcgrp.id, gfp);
9586 genlmsg_cancel(msg, hdr);
9591 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
9592 struct cfg80211_chan_def *chandef,
9593 enum nl80211_radar_event event,
9594 struct net_device *netdev, gfp_t gfp)
9596 struct sk_buff *msg;
9599 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9603 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
9609 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
9610 goto nla_put_failure;
9612 /* NOP and radar events don't need a netdev parameter */
9614 struct wireless_dev *wdev = netdev->ieee80211_ptr;
9616 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9617 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9618 goto nla_put_failure;
9621 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
9622 goto nla_put_failure;
9624 if (nl80211_send_chandef(msg, chandef))
9625 goto nla_put_failure;
9627 if (genlmsg_end(msg, hdr) < 0) {
9632 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9633 nl80211_mlme_mcgrp.id, gfp);
9637 genlmsg_cancel(msg, hdr);
9642 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9643 struct net_device *netdev, const u8 *peer,
9644 u32 num_packets, gfp_t gfp)
9646 struct sk_buff *msg;
9647 struct nlattr *pinfoattr;
9650 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9654 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9660 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9661 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9662 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9663 goto nla_put_failure;
9665 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9667 goto nla_put_failure;
9669 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9670 goto nla_put_failure;
9672 nla_nest_end(msg, pinfoattr);
9674 genlmsg_end(msg, hdr);
9676 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9677 nl80211_mlme_mcgrp.id, gfp);
9681 genlmsg_cancel(msg, hdr);
9685 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9686 u64 cookie, bool acked, gfp_t gfp)
9688 struct wireless_dev *wdev = dev->ieee80211_ptr;
9689 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9690 struct sk_buff *msg;
9694 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9696 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9701 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9707 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9708 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9709 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9710 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9711 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9712 goto nla_put_failure;
9714 err = genlmsg_end(msg, hdr);
9720 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9721 nl80211_mlme_mcgrp.id, gfp);
9725 genlmsg_cancel(msg, hdr);
9728 EXPORT_SYMBOL(cfg80211_probe_status);
9730 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9731 const u8 *frame, size_t len,
9732 int freq, int sig_dbm)
9734 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9735 struct sk_buff *msg;
9737 struct cfg80211_beacon_registration *reg;
9739 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9741 spin_lock_bh(&rdev->beacon_registrations_lock);
9742 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9743 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9745 spin_unlock_bh(&rdev->beacon_registrations_lock);
9749 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9751 goto nla_put_failure;
9753 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9755 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9757 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9758 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9759 goto nla_put_failure;
9761 genlmsg_end(msg, hdr);
9763 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9765 spin_unlock_bh(&rdev->beacon_registrations_lock);
9769 spin_unlock_bh(&rdev->beacon_registrations_lock);
9771 genlmsg_cancel(msg, hdr);
9774 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9777 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
9778 struct cfg80211_wowlan_wakeup *wakeup,
9781 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9782 struct sk_buff *msg;
9784 int err, size = 200;
9786 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
9789 size += wakeup->packet_present_len;
9791 msg = nlmsg_new(size, gfp);
9795 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
9799 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9800 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9803 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9804 wdev->netdev->ifindex))
9808 struct nlattr *reasons;
9810 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9812 if (wakeup->disconnect &&
9813 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
9815 if (wakeup->magic_pkt &&
9816 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
9818 if (wakeup->gtk_rekey_failure &&
9819 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
9821 if (wakeup->eap_identity_req &&
9822 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
9824 if (wakeup->four_way_handshake &&
9825 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
9827 if (wakeup->rfkill_release &&
9828 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
9831 if (wakeup->pattern_idx >= 0 &&
9832 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
9833 wakeup->pattern_idx))
9836 if (wakeup->tcp_match)
9837 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
9839 if (wakeup->tcp_connlost)
9841 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
9843 if (wakeup->tcp_nomoretokens)
9845 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
9847 if (wakeup->packet) {
9848 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
9849 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
9851 if (!wakeup->packet_80211) {
9853 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
9855 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
9858 if (wakeup->packet_len &&
9859 nla_put_u32(msg, len_attr, wakeup->packet_len))
9862 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
9867 nla_nest_end(msg, reasons);
9870 err = genlmsg_end(msg, hdr);
9874 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9875 nl80211_mlme_mcgrp.id, gfp);
9881 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
9884 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9885 enum nl80211_tdls_operation oper,
9886 u16 reason_code, gfp_t gfp)
9888 struct wireless_dev *wdev = dev->ieee80211_ptr;
9889 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9890 struct sk_buff *msg;
9894 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9897 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9901 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9907 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9908 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9909 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9910 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9912 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9913 goto nla_put_failure;
9915 err = genlmsg_end(msg, hdr);
9921 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9922 nl80211_mlme_mcgrp.id, gfp);
9926 genlmsg_cancel(msg, hdr);
9929 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9931 static int nl80211_netlink_notify(struct notifier_block * nb,
9932 unsigned long state,
9935 struct netlink_notify *notify = _notify;
9936 struct cfg80211_registered_device *rdev;
9937 struct wireless_dev *wdev;
9938 struct cfg80211_beacon_registration *reg, *tmp;
9940 if (state != NETLINK_URELEASE)
9945 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
9946 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
9947 cfg80211_mlme_unregister_socket(wdev, notify->portid);
9949 spin_lock_bh(&rdev->beacon_registrations_lock);
9950 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9952 if (reg->nlportid == notify->portid) {
9953 list_del(®->list);
9958 spin_unlock_bh(&rdev->beacon_registrations_lock);
9966 static struct notifier_block nl80211_netlink_notifier = {
9967 .notifier_call = nl80211_netlink_notify,
9970 /* initialisation/exit functions */
9972 int nl80211_init(void)
9976 err = genl_register_family_with_ops(&nl80211_fam,
9977 nl80211_ops, ARRAY_SIZE(nl80211_ops));
9981 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9985 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9989 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9993 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9997 #ifdef CONFIG_NL80211_TESTMODE
9998 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10003 err = netlink_register_notifier(&nl80211_netlink_notifier);
10009 genl_unregister_family(&nl80211_fam);
10013 void nl80211_exit(void)
10015 netlink_unregister_notifier(&nl80211_netlink_notifier);
10016 genl_unregister_family(&nl80211_fam);