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>
27 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
32 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
37 /* the netlink family */
38 static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
49 /* returns ERR_PTR values */
50 static struct wireless_dev *
51 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
53 struct cfg80211_registered_device *rdev;
54 struct wireless_dev *result = NULL;
55 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
56 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
61 assert_cfg80211_lock();
63 if (!have_ifidx && !have_wdev_id)
64 return ERR_PTR(-EINVAL);
67 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
69 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
70 wiphy_idx = wdev_id >> 32;
73 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
74 struct wireless_dev *wdev;
76 if (wiphy_net(&rdev->wiphy) != netns)
79 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
82 mutex_lock(&rdev->devlist_mtx);
83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
94 mutex_unlock(&rdev->devlist_mtx);
102 return ERR_PTR(-ENODEV);
105 static struct cfg80211_registered_device *
106 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
108 struct cfg80211_registered_device *rdev = NULL, *tmp;
109 struct net_device *netdev;
111 assert_cfg80211_lock();
113 if (!attrs[NL80211_ATTR_WIPHY] &&
114 !attrs[NL80211_ATTR_IFINDEX] &&
115 !attrs[NL80211_ATTR_WDEV])
116 return ERR_PTR(-EINVAL);
118 if (attrs[NL80211_ATTR_WIPHY])
119 rdev = cfg80211_rdev_by_wiphy_idx(
120 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
122 if (attrs[NL80211_ATTR_WDEV]) {
123 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
124 struct wireless_dev *wdev;
127 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
129 /* make sure wdev exists */
130 mutex_lock(&tmp->devlist_mtx);
131 list_for_each_entry(wdev, &tmp->wdev_list, list) {
132 if (wdev->identifier != (u32)wdev_id)
137 mutex_unlock(&tmp->devlist_mtx);
142 if (rdev && tmp != rdev)
143 return ERR_PTR(-EINVAL);
148 if (attrs[NL80211_ATTR_IFINDEX]) {
149 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
150 netdev = dev_get_by_index(netns, ifindex);
152 if (netdev->ieee80211_ptr)
154 netdev->ieee80211_ptr->wiphy);
160 /* not wireless device -- return error */
162 return ERR_PTR(-EINVAL);
164 /* mismatch -- return error */
165 if (rdev && tmp != rdev)
166 return ERR_PTR(-EINVAL);
173 return ERR_PTR(-ENODEV);
175 if (netns != wiphy_net(&rdev->wiphy))
176 return ERR_PTR(-ENODEV);
182 * This function returns a pointer to the driver
183 * that the genl_info item that is passed refers to.
184 * If successful, it returns non-NULL and also locks
185 * the driver's mutex!
187 * This means that you need to call cfg80211_unlock_rdev()
188 * before being allowed to acquire &cfg80211_mutex!
190 * This is necessary because we need to lock the global
191 * mutex to get an item off the list safely, and then
192 * we lock the rdev mutex so it doesn't go away under us.
194 * We don't want to keep cfg80211_mutex locked
195 * for all the time in order to allow requests on
196 * other interfaces to go through at the same time.
198 * The result of this can be a PTR_ERR and hence must
199 * be checked with IS_ERR() for errors.
201 static struct cfg80211_registered_device *
202 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
204 struct cfg80211_registered_device *rdev;
206 mutex_lock(&cfg80211_mutex);
207 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
209 /* if it is not an error we grab the lock on
210 * it to assure it won't be going away while
211 * we operate on it */
213 mutex_lock(&rdev->mtx);
215 mutex_unlock(&cfg80211_mutex);
220 /* policy for the attributes */
221 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
222 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
223 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
225 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
226 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
229 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
230 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
231 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
232 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
234 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
236 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
238 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
239 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
241 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
242 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
243 .len = WLAN_MAX_KEY_LEN },
244 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
245 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
246 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
247 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
248 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
250 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
251 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
252 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
254 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
255 .len = IEEE80211_MAX_DATA_LEN },
256 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
258 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
259 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
260 .len = NL80211_MAX_SUPP_RATES },
261 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
262 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
263 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
264 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
265 .len = IEEE80211_MAX_MESH_ID_LEN },
266 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
268 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
269 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
271 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
273 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
274 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
275 .len = NL80211_MAX_SUPP_RATES },
276 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
278 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
279 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
281 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
283 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
284 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_DATA_LEN },
286 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
287 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
289 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
290 .len = IEEE80211_MAX_SSID_LEN },
291 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
292 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
293 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
294 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
295 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
296 [NL80211_ATTR_STA_FLAGS2] = {
297 .len = sizeof(struct nl80211_sta_flag_update),
299 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
301 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
302 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
303 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
304 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
305 [NL80211_ATTR_PID] = { .type = NLA_U32 },
306 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
307 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
308 .len = WLAN_PMKID_LEN },
309 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
310 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
311 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
312 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
313 .len = IEEE80211_MAX_DATA_LEN },
314 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
315 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
316 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
317 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
318 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
319 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
321 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
322 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
323 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
324 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
325 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
326 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
327 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
328 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
329 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
330 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
331 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
332 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
333 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
335 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
336 .len = IEEE80211_MAX_DATA_LEN },
337 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
338 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
339 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
340 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
343 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
344 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
345 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
346 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
347 .len = IEEE80211_MAX_DATA_LEN },
348 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
349 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
351 .len = NL80211_HT_CAPABILITY_LEN
353 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
354 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
355 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
356 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
357 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
358 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
359 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
360 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
363 /* policy for the key attributes */
364 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
365 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
366 [NL80211_KEY_IDX] = { .type = NLA_U8 },
367 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
368 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
369 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
370 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
371 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
372 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
375 /* policy for the key default flags */
376 static const struct nla_policy
377 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
378 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
379 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
382 /* policy for WoWLAN attributes */
383 static const struct nla_policy
384 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
385 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
386 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
387 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
388 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
389 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
390 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
391 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
392 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
395 /* policy for GTK rekey offload attributes */
396 static const struct nla_policy
397 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
398 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
399 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
400 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
403 static const struct nla_policy
404 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
405 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
406 .len = IEEE80211_MAX_SSID_LEN },
407 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
410 /* ifidx get helper */
411 static int nl80211_get_ifidx(struct netlink_callback *cb)
415 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
416 nl80211_fam.attrbuf, nl80211_fam.maxattr,
421 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
424 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
430 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
431 struct netlink_callback *cb,
432 struct cfg80211_registered_device **rdev,
433 struct net_device **dev)
435 int ifidx = cb->args[0];
439 ifidx = nl80211_get_ifidx(cb);
447 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
453 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
455 err = PTR_ERR(*rdev);
465 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
467 cfg80211_unlock_rdev(rdev);
472 static bool is_valid_ie_attr(const struct nlattr *attr)
480 pos = nla_data(attr);
501 /* message building helper */
502 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
505 /* since there is no private header just add the generic one */
506 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
509 static int nl80211_msg_put_channel(struct sk_buff *msg,
510 struct ieee80211_channel *chan)
512 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
514 goto nla_put_failure;
516 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
517 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
518 goto nla_put_failure;
519 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
520 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
521 goto nla_put_failure;
522 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
523 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
524 goto nla_put_failure;
525 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
526 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
527 goto nla_put_failure;
529 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
530 DBM_TO_MBM(chan->max_power)))
531 goto nla_put_failure;
539 /* netlink command implementations */
546 bool def_uni, def_multi;
549 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
551 struct nlattr *tb[NL80211_KEY_MAX + 1];
552 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
557 k->def = !!tb[NL80211_KEY_DEFAULT];
558 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
567 if (tb[NL80211_KEY_IDX])
568 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
570 if (tb[NL80211_KEY_DATA]) {
571 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
572 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
575 if (tb[NL80211_KEY_SEQ]) {
576 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
577 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
580 if (tb[NL80211_KEY_CIPHER])
581 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
583 if (tb[NL80211_KEY_TYPE]) {
584 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
585 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
589 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
590 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
591 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
592 tb[NL80211_KEY_DEFAULT_TYPES],
593 nl80211_key_default_policy);
597 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
598 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
604 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
606 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
607 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
608 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
611 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
612 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
613 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
616 if (info->attrs[NL80211_ATTR_KEY_IDX])
617 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
619 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
620 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
622 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
623 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
632 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
633 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
634 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
638 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
639 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
640 int err = nla_parse_nested(
641 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
642 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
643 nl80211_key_default_policy);
647 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
648 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
654 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
658 memset(k, 0, sizeof(*k));
662 if (info->attrs[NL80211_ATTR_KEY])
663 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
665 err = nl80211_parse_key_old(info, k);
670 if (k->def && k->defmgmt)
674 if (k->def_uni || !k->def_multi)
680 if (k->idx < 4 || k->idx > 5)
683 if (k->idx < 0 || k->idx > 3)
686 if (k->idx < 0 || k->idx > 5)
694 static struct cfg80211_cached_keys *
695 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
696 struct nlattr *keys, bool *no_ht)
698 struct key_parse parse;
700 struct cfg80211_cached_keys *result;
701 int rem, err, def = 0;
703 result = kzalloc(sizeof(*result), GFP_KERNEL);
705 return ERR_PTR(-ENOMEM);
708 result->defmgmt = -1;
710 nla_for_each_nested(key, keys, rem) {
711 memset(&parse, 0, sizeof(parse));
714 err = nl80211_parse_key_new(key, &parse);
720 if (parse.idx < 0 || parse.idx > 4)
726 result->def = parse.idx;
727 if (!parse.def_uni || !parse.def_multi)
729 } else if (parse.defmgmt)
731 err = cfg80211_validate_key_settings(rdev, &parse.p,
732 parse.idx, false, NULL);
735 result->params[parse.idx].cipher = parse.p.cipher;
736 result->params[parse.idx].key_len = parse.p.key_len;
737 result->params[parse.idx].key = result->data[parse.idx];
738 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
740 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
741 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
753 static int nl80211_key_allowed(struct wireless_dev *wdev)
755 ASSERT_WDEV_LOCK(wdev);
757 switch (wdev->iftype) {
758 case NL80211_IFTYPE_AP:
759 case NL80211_IFTYPE_AP_VLAN:
760 case NL80211_IFTYPE_P2P_GO:
761 case NL80211_IFTYPE_MESH_POINT:
763 case NL80211_IFTYPE_ADHOC:
764 if (!wdev->current_bss)
767 case NL80211_IFTYPE_STATION:
768 case NL80211_IFTYPE_P2P_CLIENT:
769 if (wdev->sme_state != CFG80211_SME_CONNECTED)
779 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
781 struct nlattr *nl_modes = nla_nest_start(msg, attr);
785 goto nla_put_failure;
789 if ((ifmodes & 1) && nla_put_flag(msg, i))
790 goto nla_put_failure;
795 nla_nest_end(msg, nl_modes);
802 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
805 struct nlattr *nl_combis;
808 nl_combis = nla_nest_start(msg,
809 NL80211_ATTR_INTERFACE_COMBINATIONS);
811 goto nla_put_failure;
813 for (i = 0; i < wiphy->n_iface_combinations; i++) {
814 const struct ieee80211_iface_combination *c;
815 struct nlattr *nl_combi, *nl_limits;
817 c = &wiphy->iface_combinations[i];
819 nl_combi = nla_nest_start(msg, i + 1);
821 goto nla_put_failure;
823 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
825 goto nla_put_failure;
827 for (j = 0; j < c->n_limits; j++) {
828 struct nlattr *nl_limit;
830 nl_limit = nla_nest_start(msg, j + 1);
832 goto nla_put_failure;
833 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
835 goto nla_put_failure;
836 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
838 goto nla_put_failure;
839 nla_nest_end(msg, nl_limit);
842 nla_nest_end(msg, nl_limits);
844 if (c->beacon_int_infra_match &&
845 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
846 goto nla_put_failure;
847 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
848 c->num_different_channels) ||
849 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
851 goto nla_put_failure;
853 nla_nest_end(msg, nl_combi);
856 nla_nest_end(msg, nl_combis);
863 static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
864 struct cfg80211_registered_device *dev)
867 struct nlattr *nl_bands, *nl_band;
868 struct nlattr *nl_freqs, *nl_freq;
869 struct nlattr *nl_rates, *nl_rate;
870 struct nlattr *nl_cmds;
871 enum ieee80211_band band;
872 struct ieee80211_channel *chan;
873 struct ieee80211_rate *rate;
875 const struct ieee80211_txrx_stypes *mgmt_stypes =
876 dev->wiphy.mgmt_stypes;
878 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
882 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
883 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
884 nla_put_u32(msg, NL80211_ATTR_GENERATION,
885 cfg80211_rdev_list_generation) ||
886 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
887 dev->wiphy.retry_short) ||
888 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
889 dev->wiphy.retry_long) ||
890 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
891 dev->wiphy.frag_threshold) ||
892 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
893 dev->wiphy.rts_threshold) ||
894 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
895 dev->wiphy.coverage_class) ||
896 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
897 dev->wiphy.max_scan_ssids) ||
898 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
899 dev->wiphy.max_sched_scan_ssids) ||
900 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
901 dev->wiphy.max_scan_ie_len) ||
902 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
903 dev->wiphy.max_sched_scan_ie_len) ||
904 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
905 dev->wiphy.max_match_sets))
906 goto nla_put_failure;
908 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
909 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
910 goto nla_put_failure;
911 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
912 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
913 goto nla_put_failure;
914 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
915 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
916 goto nla_put_failure;
917 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
918 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
919 goto nla_put_failure;
920 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
921 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
922 goto nla_put_failure;
923 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
924 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
925 goto nla_put_failure;
927 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
928 sizeof(u32) * dev->wiphy.n_cipher_suites,
929 dev->wiphy.cipher_suites))
930 goto nla_put_failure;
932 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
933 dev->wiphy.max_num_pmkids))
934 goto nla_put_failure;
936 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
937 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
938 goto nla_put_failure;
940 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
941 dev->wiphy.available_antennas_tx) ||
942 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
943 dev->wiphy.available_antennas_rx))
944 goto nla_put_failure;
946 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
947 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
948 dev->wiphy.probe_resp_offload))
949 goto nla_put_failure;
951 if ((dev->wiphy.available_antennas_tx ||
952 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
953 u32 tx_ant = 0, rx_ant = 0;
955 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
957 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
959 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
961 goto nla_put_failure;
965 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
966 dev->wiphy.interface_modes))
967 goto nla_put_failure;
969 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
971 goto nla_put_failure;
973 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
974 if (!dev->wiphy.bands[band])
977 nl_band = nla_nest_start(msg, band);
979 goto nla_put_failure;
982 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
983 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
984 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
985 &dev->wiphy.bands[band]->ht_cap.mcs) ||
986 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
987 dev->wiphy.bands[band]->ht_cap.cap) ||
988 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
989 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
990 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
991 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
992 goto nla_put_failure;
995 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
996 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
997 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
998 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
999 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1000 dev->wiphy.bands[band]->vht_cap.cap)))
1001 goto nla_put_failure;
1003 /* add frequencies */
1004 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1006 goto nla_put_failure;
1008 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1009 nl_freq = nla_nest_start(msg, i);
1011 goto nla_put_failure;
1013 chan = &dev->wiphy.bands[band]->channels[i];
1015 if (nl80211_msg_put_channel(msg, chan))
1016 goto nla_put_failure;
1018 nla_nest_end(msg, nl_freq);
1021 nla_nest_end(msg, nl_freqs);
1024 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1026 goto nla_put_failure;
1028 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1029 nl_rate = nla_nest_start(msg, i);
1031 goto nla_put_failure;
1033 rate = &dev->wiphy.bands[band]->bitrates[i];
1034 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1036 goto nla_put_failure;
1037 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1039 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1040 goto nla_put_failure;
1042 nla_nest_end(msg, nl_rate);
1045 nla_nest_end(msg, nl_rates);
1047 nla_nest_end(msg, nl_band);
1049 nla_nest_end(msg, nl_bands);
1051 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1053 goto nla_put_failure;
1056 #define CMD(op, n) \
1058 if (dev->ops->op) { \
1060 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1061 goto nla_put_failure; \
1065 CMD(add_virtual_intf, NEW_INTERFACE);
1066 CMD(change_virtual_intf, SET_INTERFACE);
1067 CMD(add_key, NEW_KEY);
1068 CMD(start_ap, START_AP);
1069 CMD(add_station, NEW_STATION);
1070 CMD(add_mpath, NEW_MPATH);
1071 CMD(update_mesh_config, SET_MESH_CONFIG);
1072 CMD(change_bss, SET_BSS);
1073 CMD(auth, AUTHENTICATE);
1074 CMD(assoc, ASSOCIATE);
1075 CMD(deauth, DEAUTHENTICATE);
1076 CMD(disassoc, DISASSOCIATE);
1077 CMD(join_ibss, JOIN_IBSS);
1078 CMD(join_mesh, JOIN_MESH);
1079 CMD(set_pmksa, SET_PMKSA);
1080 CMD(del_pmksa, DEL_PMKSA);
1081 CMD(flush_pmksa, FLUSH_PMKSA);
1082 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1083 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1084 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1085 CMD(mgmt_tx, FRAME);
1086 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1087 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1089 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1090 goto nla_put_failure;
1092 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1093 dev->ops->join_mesh) {
1095 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1096 goto nla_put_failure;
1098 CMD(set_wds_peer, SET_WDS_PEER);
1099 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1100 CMD(tdls_mgmt, TDLS_MGMT);
1101 CMD(tdls_oper, TDLS_OPER);
1103 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1104 CMD(sched_scan_start, START_SCHED_SCAN);
1105 CMD(probe_client, PROBE_CLIENT);
1106 CMD(set_noack_map, SET_NOACK_MAP);
1107 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1109 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1110 goto nla_put_failure;
1112 CMD(start_p2p_device, START_P2P_DEVICE);
1113 CMD(set_mcast_rate, SET_MCAST_RATE);
1115 #ifdef CONFIG_NL80211_TESTMODE
1116 CMD(testmode_cmd, TESTMODE);
1121 if (dev->ops->connect || dev->ops->auth) {
1123 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1124 goto nla_put_failure;
1127 if (dev->ops->disconnect || dev->ops->deauth) {
1129 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1130 goto nla_put_failure;
1133 nla_nest_end(msg, nl_cmds);
1135 if (dev->ops->remain_on_channel &&
1136 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1137 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1138 dev->wiphy.max_remain_on_channel_duration))
1139 goto nla_put_failure;
1141 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1142 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1143 goto nla_put_failure;
1147 struct nlattr *nl_ftypes, *nl_ifs;
1148 enum nl80211_iftype ift;
1150 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1152 goto nla_put_failure;
1154 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1155 nl_ftypes = nla_nest_start(msg, ift);
1157 goto nla_put_failure;
1159 stypes = mgmt_stypes[ift].tx;
1162 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1163 (i << 4) | IEEE80211_FTYPE_MGMT))
1164 goto nla_put_failure;
1168 nla_nest_end(msg, nl_ftypes);
1171 nla_nest_end(msg, nl_ifs);
1173 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1175 goto nla_put_failure;
1177 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1178 nl_ftypes = nla_nest_start(msg, ift);
1180 goto nla_put_failure;
1182 stypes = mgmt_stypes[ift].rx;
1185 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1186 (i << 4) | IEEE80211_FTYPE_MGMT))
1187 goto nla_put_failure;
1191 nla_nest_end(msg, nl_ftypes);
1193 nla_nest_end(msg, nl_ifs);
1197 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1198 struct nlattr *nl_wowlan;
1200 nl_wowlan = nla_nest_start(msg,
1201 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1203 goto nla_put_failure;
1205 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1206 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1207 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1208 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1209 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1210 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1211 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1212 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1213 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1214 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1215 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1216 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1217 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1218 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1219 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1220 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1221 goto nla_put_failure;
1222 if (dev->wiphy.wowlan.n_patterns) {
1223 struct nl80211_wowlan_pattern_support pat = {
1224 .max_patterns = dev->wiphy.wowlan.n_patterns,
1226 dev->wiphy.wowlan.pattern_min_len,
1228 dev->wiphy.wowlan.pattern_max_len,
1230 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1232 goto nla_put_failure;
1235 nla_nest_end(msg, nl_wowlan);
1239 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1240 dev->wiphy.software_iftypes))
1241 goto nla_put_failure;
1243 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1244 goto nla_put_failure;
1246 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1247 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1248 dev->wiphy.ap_sme_capa))
1249 goto nla_put_failure;
1251 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1252 dev->wiphy.features))
1253 goto nla_put_failure;
1255 if (dev->wiphy.ht_capa_mod_mask &&
1256 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1257 sizeof(*dev->wiphy.ht_capa_mod_mask),
1258 dev->wiphy.ht_capa_mod_mask))
1259 goto nla_put_failure;
1261 return genlmsg_end(msg, hdr);
1264 genlmsg_cancel(msg, hdr);
1268 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1271 int start = cb->args[0];
1272 struct cfg80211_registered_device *dev;
1274 mutex_lock(&cfg80211_mutex);
1275 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1276 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1280 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1281 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1287 mutex_unlock(&cfg80211_mutex);
1294 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1296 struct sk_buff *msg;
1297 struct cfg80211_registered_device *dev = info->user_ptr[0];
1299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1303 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
1308 return genlmsg_reply(msg, info);
1311 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1312 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1313 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1314 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1315 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1316 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1319 static int parse_txq_params(struct nlattr *tb[],
1320 struct ieee80211_txq_params *txq_params)
1322 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1323 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1324 !tb[NL80211_TXQ_ATTR_AIFS])
1327 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1328 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1329 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1330 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1331 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1333 if (txq_params->ac >= NL80211_NUM_ACS)
1339 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1342 * You can only set the channel explicitly for WDS interfaces,
1343 * all others have their channel managed via their respective
1344 * "establish a connection" command (connect, join, ...)
1346 * For AP/GO and mesh mode, the channel can be set with the
1347 * channel userspace API, but is only stored and passed to the
1348 * low-level driver when the AP starts or the mesh is joined.
1349 * This is for backward compatibility, userspace can also give
1350 * the channel in the start-ap or join-mesh commands instead.
1352 * Monitors are special as they are normally slaved to
1353 * whatever else is going on, so they have their own special
1354 * operation to set the monitor channel if possible.
1357 wdev->iftype == NL80211_IFTYPE_AP ||
1358 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1359 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1360 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1363 static bool nl80211_valid_channel_type(struct genl_info *info,
1364 enum nl80211_channel_type *channel_type)
1366 enum nl80211_channel_type tmp;
1368 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1371 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1372 if (tmp != NL80211_CHAN_NO_HT &&
1373 tmp != NL80211_CHAN_HT20 &&
1374 tmp != NL80211_CHAN_HT40PLUS &&
1375 tmp != NL80211_CHAN_HT40MINUS)
1379 *channel_type = tmp;
1384 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1385 struct wireless_dev *wdev,
1386 struct genl_info *info)
1388 struct ieee80211_channel *channel;
1389 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1392 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1395 iftype = wdev->iftype;
1397 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1400 if (!nl80211_can_set_dev_channel(wdev))
1403 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1404 !nl80211_valid_channel_type(info, &channel_type))
1407 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1409 mutex_lock(&rdev->devlist_mtx);
1411 case NL80211_IFTYPE_AP:
1412 case NL80211_IFTYPE_P2P_GO:
1413 if (wdev->beacon_interval) {
1417 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1418 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1424 wdev->preset_chan = channel;
1425 wdev->preset_chantype = channel_type;
1428 case NL80211_IFTYPE_MESH_POINT:
1429 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1431 case NL80211_IFTYPE_MONITOR:
1432 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1437 mutex_unlock(&rdev->devlist_mtx);
1442 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1445 struct net_device *netdev = info->user_ptr[1];
1447 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1450 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1453 struct net_device *dev = info->user_ptr[1];
1454 struct wireless_dev *wdev = dev->ieee80211_ptr;
1457 if (!info->attrs[NL80211_ATTR_MAC])
1460 if (netif_running(dev))
1463 if (!rdev->ops->set_wds_peer)
1466 if (wdev->iftype != NL80211_IFTYPE_WDS)
1469 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1470 return rdev_set_wds_peer(rdev, dev, bssid);
1474 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1476 struct cfg80211_registered_device *rdev;
1477 struct net_device *netdev = NULL;
1478 struct wireless_dev *wdev;
1479 int result = 0, rem_txq_params = 0;
1480 struct nlattr *nl_txq_params;
1482 u8 retry_short = 0, retry_long = 0;
1483 u32 frag_threshold = 0, rts_threshold = 0;
1484 u8 coverage_class = 0;
1487 * Try to find the wiphy and netdev. Normally this
1488 * function shouldn't need the netdev, but this is
1489 * done for backward compatibility -- previously
1490 * setting the channel was done per wiphy, but now
1491 * it is per netdev. Previous userland like hostapd
1492 * also passed a netdev to set_wiphy, so that it is
1493 * possible to let that go to the right netdev!
1495 mutex_lock(&cfg80211_mutex);
1497 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1498 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1500 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1501 if (netdev && netdev->ieee80211_ptr) {
1502 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1503 mutex_lock(&rdev->mtx);
1509 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1512 mutex_unlock(&cfg80211_mutex);
1513 return PTR_ERR(rdev);
1519 mutex_lock(&rdev->mtx);
1521 wdev = netdev->ieee80211_ptr;
1524 * end workaround code, by now the rdev is available
1525 * and locked, and wdev may or may not be NULL.
1528 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1529 result = cfg80211_dev_rename(
1530 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1532 mutex_unlock(&cfg80211_mutex);
1537 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1538 struct ieee80211_txq_params txq_params;
1539 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1541 if (!rdev->ops->set_txq_params) {
1542 result = -EOPNOTSUPP;
1551 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1552 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1557 if (!netif_running(netdev)) {
1562 nla_for_each_nested(nl_txq_params,
1563 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1565 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1566 nla_data(nl_txq_params),
1567 nla_len(nl_txq_params),
1569 result = parse_txq_params(tb, &txq_params);
1573 result = rdev_set_txq_params(rdev, netdev,
1580 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1581 result = __nl80211_set_channel(rdev,
1582 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1588 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1589 struct wireless_dev *txp_wdev = wdev;
1590 enum nl80211_tx_power_setting type;
1593 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1596 if (!rdev->ops->set_tx_power) {
1597 result = -EOPNOTSUPP;
1601 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1602 type = nla_get_u32(info->attrs[idx]);
1604 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1605 (type != NL80211_TX_POWER_AUTOMATIC)) {
1610 if (type != NL80211_TX_POWER_AUTOMATIC) {
1611 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1612 mbm = nla_get_u32(info->attrs[idx]);
1615 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1620 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1621 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1623 if ((!rdev->wiphy.available_antennas_tx &&
1624 !rdev->wiphy.available_antennas_rx) ||
1625 !rdev->ops->set_antenna) {
1626 result = -EOPNOTSUPP;
1630 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1631 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1633 /* reject antenna configurations which don't match the
1634 * available antenna masks, except for the "all" mask */
1635 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1636 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1641 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1642 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1644 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
1651 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1652 retry_short = nla_get_u8(
1653 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1654 if (retry_short == 0) {
1658 changed |= WIPHY_PARAM_RETRY_SHORT;
1661 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1662 retry_long = nla_get_u8(
1663 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1664 if (retry_long == 0) {
1668 changed |= WIPHY_PARAM_RETRY_LONG;
1671 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1672 frag_threshold = nla_get_u32(
1673 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1674 if (frag_threshold < 256) {
1678 if (frag_threshold != (u32) -1) {
1680 * Fragments (apart from the last one) are required to
1681 * have even length. Make the fragmentation code
1682 * simpler by stripping LSB should someone try to use
1683 * odd threshold value.
1685 frag_threshold &= ~0x1;
1687 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1690 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1691 rts_threshold = nla_get_u32(
1692 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1693 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1696 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1697 coverage_class = nla_get_u8(
1698 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1699 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1703 u8 old_retry_short, old_retry_long;
1704 u32 old_frag_threshold, old_rts_threshold;
1705 u8 old_coverage_class;
1707 if (!rdev->ops->set_wiphy_params) {
1708 result = -EOPNOTSUPP;
1712 old_retry_short = rdev->wiphy.retry_short;
1713 old_retry_long = rdev->wiphy.retry_long;
1714 old_frag_threshold = rdev->wiphy.frag_threshold;
1715 old_rts_threshold = rdev->wiphy.rts_threshold;
1716 old_coverage_class = rdev->wiphy.coverage_class;
1718 if (changed & WIPHY_PARAM_RETRY_SHORT)
1719 rdev->wiphy.retry_short = retry_short;
1720 if (changed & WIPHY_PARAM_RETRY_LONG)
1721 rdev->wiphy.retry_long = retry_long;
1722 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1723 rdev->wiphy.frag_threshold = frag_threshold;
1724 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1725 rdev->wiphy.rts_threshold = rts_threshold;
1726 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1727 rdev->wiphy.coverage_class = coverage_class;
1729 result = rdev_set_wiphy_params(rdev, changed);
1731 rdev->wiphy.retry_short = old_retry_short;
1732 rdev->wiphy.retry_long = old_retry_long;
1733 rdev->wiphy.frag_threshold = old_frag_threshold;
1734 rdev->wiphy.rts_threshold = old_rts_threshold;
1735 rdev->wiphy.coverage_class = old_coverage_class;
1740 mutex_unlock(&rdev->mtx);
1746 static inline u64 wdev_id(struct wireless_dev *wdev)
1748 return (u64)wdev->identifier |
1749 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1752 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
1753 struct cfg80211_registered_device *rdev,
1754 struct wireless_dev *wdev)
1756 struct net_device *dev = wdev->netdev;
1759 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1764 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1765 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
1766 goto nla_put_failure;
1768 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1769 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1770 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1771 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
1772 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1773 rdev->devlist_generation ^
1774 (cfg80211_rdev_list_generation << 2)))
1775 goto nla_put_failure;
1777 if (rdev->ops->get_channel) {
1778 struct ieee80211_channel *chan;
1779 enum nl80211_channel_type channel_type;
1781 chan = rdev_get_channel(rdev, wdev, &channel_type);
1783 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1784 chan->center_freq) ||
1785 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1787 goto nla_put_failure;
1790 if (wdev->ssid_len) {
1791 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1792 goto nla_put_failure;
1795 return genlmsg_end(msg, hdr);
1798 genlmsg_cancel(msg, hdr);
1802 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1806 int wp_start = cb->args[0];
1807 int if_start = cb->args[1];
1808 struct cfg80211_registered_device *rdev;
1809 struct wireless_dev *wdev;
1811 mutex_lock(&cfg80211_mutex);
1812 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1813 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1815 if (wp_idx < wp_start) {
1821 mutex_lock(&rdev->devlist_mtx);
1822 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1823 if (if_idx < if_start) {
1827 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
1828 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1830 mutex_unlock(&rdev->devlist_mtx);
1835 mutex_unlock(&rdev->devlist_mtx);
1840 mutex_unlock(&cfg80211_mutex);
1842 cb->args[0] = wp_idx;
1843 cb->args[1] = if_idx;
1848 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1850 struct sk_buff *msg;
1851 struct cfg80211_registered_device *dev = info->user_ptr[0];
1852 struct wireless_dev *wdev = info->user_ptr[1];
1854 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1858 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1864 return genlmsg_reply(msg, info);
1867 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1868 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1869 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1870 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1871 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1872 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1875 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1877 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1885 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1886 nla, mntr_flags_policy))
1889 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1891 *mntrflags |= (1<<flag);
1896 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1897 struct net_device *netdev, u8 use_4addr,
1898 enum nl80211_iftype iftype)
1901 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1907 case NL80211_IFTYPE_AP_VLAN:
1908 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1911 case NL80211_IFTYPE_STATION:
1912 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1922 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1924 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1925 struct vif_params params;
1927 enum nl80211_iftype otype, ntype;
1928 struct net_device *dev = info->user_ptr[1];
1929 u32 _flags, *flags = NULL;
1930 bool change = false;
1932 memset(¶ms, 0, sizeof(params));
1934 otype = ntype = dev->ieee80211_ptr->iftype;
1936 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1937 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1940 if (ntype > NL80211_IFTYPE_MAX)
1944 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1945 struct wireless_dev *wdev = dev->ieee80211_ptr;
1947 if (ntype != NL80211_IFTYPE_MESH_POINT)
1949 if (netif_running(dev))
1953 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1954 IEEE80211_MAX_MESH_ID_LEN);
1955 wdev->mesh_id_up_len =
1956 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1957 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1958 wdev->mesh_id_up_len);
1962 if (info->attrs[NL80211_ATTR_4ADDR]) {
1963 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1965 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1969 params.use_4addr = -1;
1972 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1973 if (ntype != NL80211_IFTYPE_MONITOR)
1975 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1985 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1989 if (!err && params.use_4addr != -1)
1990 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1995 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1998 struct vif_params params;
1999 struct wireless_dev *wdev;
2000 struct sk_buff *msg;
2002 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2005 memset(¶ms, 0, sizeof(params));
2007 if (!info->attrs[NL80211_ATTR_IFNAME])
2010 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2011 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2012 if (type > NL80211_IFTYPE_MAX)
2016 if (!rdev->ops->add_virtual_intf ||
2017 !(rdev->wiphy.interface_modes & (1 << type)))
2020 if (info->attrs[NL80211_ATTR_4ADDR]) {
2021 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2022 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2027 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2031 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2032 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2034 wdev = rdev_add_virtual_intf(rdev,
2035 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2036 type, err ? NULL : &flags, ¶ms);
2039 return PTR_ERR(wdev);
2043 case NL80211_IFTYPE_MESH_POINT:
2044 if (!info->attrs[NL80211_ATTR_MESH_ID])
2047 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2048 IEEE80211_MAX_MESH_ID_LEN);
2049 wdev->mesh_id_up_len =
2050 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2051 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2052 wdev->mesh_id_up_len);
2055 case NL80211_IFTYPE_P2P_DEVICE:
2057 * P2P Device doesn't have a netdev, so doesn't go
2058 * through the netdev notifier and must be added here
2060 mutex_init(&wdev->mtx);
2061 INIT_LIST_HEAD(&wdev->event_list);
2062 spin_lock_init(&wdev->event_lock);
2063 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2064 spin_lock_init(&wdev->mgmt_registrations_lock);
2066 mutex_lock(&rdev->devlist_mtx);
2067 wdev->identifier = ++rdev->wdev_id;
2068 list_add_rcu(&wdev->list, &rdev->wdev_list);
2069 rdev->devlist_generation++;
2070 mutex_unlock(&rdev->devlist_mtx);
2076 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2082 return genlmsg_reply(msg, info);
2085 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2087 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2088 struct wireless_dev *wdev = info->user_ptr[1];
2090 if (!rdev->ops->del_virtual_intf)
2094 * If we remove a wireless device without a netdev then clear
2095 * user_ptr[1] so that nl80211_post_doit won't dereference it
2096 * to check if it needs to do dev_put(). Otherwise it crashes
2097 * since the wdev has been freed, unlike with a netdev where
2098 * we need the dev_put() for the netdev to really be freed.
2101 info->user_ptr[1] = NULL;
2103 return rdev_del_virtual_intf(rdev, wdev);
2106 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2109 struct net_device *dev = info->user_ptr[1];
2112 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2115 if (!rdev->ops->set_noack_map)
2118 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2120 return rdev_set_noack_map(rdev, dev, noack_map);
2123 struct get_key_cookie {
2124 struct sk_buff *msg;
2129 static void get_key_callback(void *c, struct key_params *params)
2132 struct get_key_cookie *cookie = c;
2135 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2136 params->key_len, params->key)) ||
2138 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2139 params->seq_len, params->seq)) ||
2141 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2143 goto nla_put_failure;
2145 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2147 goto nla_put_failure;
2150 nla_put(cookie->msg, NL80211_KEY_DATA,
2151 params->key_len, params->key)) ||
2153 nla_put(cookie->msg, NL80211_KEY_SEQ,
2154 params->seq_len, params->seq)) ||
2156 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2158 goto nla_put_failure;
2160 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2161 goto nla_put_failure;
2163 nla_nest_end(cookie->msg, key);
2170 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2174 struct net_device *dev = info->user_ptr[1];
2176 const u8 *mac_addr = NULL;
2178 struct get_key_cookie cookie = {
2182 struct sk_buff *msg;
2184 if (info->attrs[NL80211_ATTR_KEY_IDX])
2185 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2190 if (info->attrs[NL80211_ATTR_MAC])
2191 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2193 pairwise = !!mac_addr;
2194 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2195 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2196 if (kt >= NUM_NL80211_KEYTYPES)
2198 if (kt != NL80211_KEYTYPE_GROUP &&
2199 kt != NL80211_KEYTYPE_PAIRWISE)
2201 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2204 if (!rdev->ops->get_key)
2207 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2211 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2212 NL80211_CMD_NEW_KEY);
2214 return PTR_ERR(hdr);
2217 cookie.idx = key_idx;
2219 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2220 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2221 goto nla_put_failure;
2223 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2224 goto nla_put_failure;
2226 if (pairwise && mac_addr &&
2227 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2230 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2237 goto nla_put_failure;
2239 genlmsg_end(msg, hdr);
2240 return genlmsg_reply(msg, info);
2249 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2251 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2252 struct key_parse key;
2254 struct net_device *dev = info->user_ptr[1];
2256 err = nl80211_parse_key(info, &key);
2263 /* only support setting default key */
2264 if (!key.def && !key.defmgmt)
2267 wdev_lock(dev->ieee80211_ptr);
2270 if (!rdev->ops->set_default_key) {
2275 err = nl80211_key_allowed(dev->ieee80211_ptr);
2279 err = rdev_set_default_key(rdev, dev, key.idx,
2280 key.def_uni, key.def_multi);
2285 #ifdef CONFIG_CFG80211_WEXT
2286 dev->ieee80211_ptr->wext.default_key = key.idx;
2289 if (key.def_uni || !key.def_multi) {
2294 if (!rdev->ops->set_default_mgmt_key) {
2299 err = nl80211_key_allowed(dev->ieee80211_ptr);
2303 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2307 #ifdef CONFIG_CFG80211_WEXT
2308 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2313 wdev_unlock(dev->ieee80211_ptr);
2318 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2322 struct net_device *dev = info->user_ptr[1];
2323 struct key_parse key;
2324 const u8 *mac_addr = NULL;
2326 err = nl80211_parse_key(info, &key);
2333 if (info->attrs[NL80211_ATTR_MAC])
2334 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2336 if (key.type == -1) {
2338 key.type = NL80211_KEYTYPE_PAIRWISE;
2340 key.type = NL80211_KEYTYPE_GROUP;
2344 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2345 key.type != NL80211_KEYTYPE_GROUP)
2348 if (!rdev->ops->add_key)
2351 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2352 key.type == NL80211_KEYTYPE_PAIRWISE,
2356 wdev_lock(dev->ieee80211_ptr);
2357 err = nl80211_key_allowed(dev->ieee80211_ptr);
2359 err = rdev_add_key(rdev, dev, key.idx,
2360 key.type == NL80211_KEYTYPE_PAIRWISE,
2362 wdev_unlock(dev->ieee80211_ptr);
2367 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2371 struct net_device *dev = info->user_ptr[1];
2372 u8 *mac_addr = NULL;
2373 struct key_parse key;
2375 err = nl80211_parse_key(info, &key);
2379 if (info->attrs[NL80211_ATTR_MAC])
2380 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2382 if (key.type == -1) {
2384 key.type = NL80211_KEYTYPE_PAIRWISE;
2386 key.type = NL80211_KEYTYPE_GROUP;
2390 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2391 key.type != NL80211_KEYTYPE_GROUP)
2394 if (!rdev->ops->del_key)
2397 wdev_lock(dev->ieee80211_ptr);
2398 err = nl80211_key_allowed(dev->ieee80211_ptr);
2400 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2401 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2405 err = rdev_del_key(rdev, dev, key.idx,
2406 key.type == NL80211_KEYTYPE_PAIRWISE,
2409 #ifdef CONFIG_CFG80211_WEXT
2411 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2412 dev->ieee80211_ptr->wext.default_key = -1;
2413 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2414 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2417 wdev_unlock(dev->ieee80211_ptr);
2422 static int nl80211_parse_beacon(struct genl_info *info,
2423 struct cfg80211_beacon_data *bcn)
2425 bool haveinfo = false;
2427 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2428 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2429 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2430 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2433 memset(bcn, 0, sizeof(*bcn));
2435 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2436 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2437 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2443 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2444 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2446 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2453 if (info->attrs[NL80211_ATTR_IE]) {
2454 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2455 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2458 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2459 bcn->proberesp_ies =
2460 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2461 bcn->proberesp_ies_len =
2462 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2465 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2466 bcn->assocresp_ies =
2467 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2468 bcn->assocresp_ies_len =
2469 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2472 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2474 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2475 bcn->probe_resp_len =
2476 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2482 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2483 struct cfg80211_ap_settings *params)
2485 struct wireless_dev *wdev;
2488 mutex_lock(&rdev->devlist_mtx);
2490 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2491 if (wdev->iftype != NL80211_IFTYPE_AP &&
2492 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2495 if (!wdev->preset_chan)
2498 params->channel = wdev->preset_chan;
2499 params->channel_type = wdev->preset_chantype;
2504 mutex_unlock(&rdev->devlist_mtx);
2509 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2510 enum nl80211_auth_type auth_type,
2511 enum nl80211_commands cmd)
2513 if (auth_type > NL80211_AUTHTYPE_MAX)
2517 case NL80211_CMD_AUTHENTICATE:
2518 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2519 auth_type == NL80211_AUTHTYPE_SAE)
2522 case NL80211_CMD_CONNECT:
2523 case NL80211_CMD_START_AP:
2524 /* SAE not supported yet */
2525 if (auth_type == NL80211_AUTHTYPE_SAE)
2533 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2535 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2536 struct net_device *dev = info->user_ptr[1];
2537 struct wireless_dev *wdev = dev->ieee80211_ptr;
2538 struct cfg80211_ap_settings params;
2541 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2542 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2545 if (!rdev->ops->start_ap)
2548 if (wdev->beacon_interval)
2551 memset(¶ms, 0, sizeof(params));
2553 /* these are required for START_AP */
2554 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2555 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2556 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2559 err = nl80211_parse_beacon(info, ¶ms.beacon);
2563 params.beacon_interval =
2564 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2565 params.dtim_period =
2566 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2568 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2573 * In theory, some of these attributes should be required here
2574 * but since they were not used when the command was originally
2575 * added, keep them optional for old user space programs to let
2576 * them continue to work with drivers that do not need the
2577 * additional information -- drivers must check!
2579 if (info->attrs[NL80211_ATTR_SSID]) {
2580 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2582 nla_len(info->attrs[NL80211_ATTR_SSID]);
2583 if (params.ssid_len == 0 ||
2584 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2588 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2589 params.hidden_ssid = nla_get_u32(
2590 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2591 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2592 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2593 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2597 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2599 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2600 params.auth_type = nla_get_u32(
2601 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2602 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2603 NL80211_CMD_START_AP))
2606 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2608 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2609 NL80211_MAX_NR_CIPHER_SUITES);
2613 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2614 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2616 params.inactivity_timeout = nla_get_u16(
2617 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2620 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2621 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2623 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2624 !nl80211_valid_channel_type(info, &channel_type))
2627 params.channel = rdev_freq_to_chan(rdev,
2628 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2630 if (!params.channel)
2632 params.channel_type = channel_type;
2633 } else if (wdev->preset_chan) {
2634 params.channel = wdev->preset_chan;
2635 params.channel_type = wdev->preset_chantype;
2636 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2639 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2640 params.channel_type))
2643 mutex_lock(&rdev->devlist_mtx);
2644 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2646 mutex_unlock(&rdev->devlist_mtx);
2651 err = rdev_start_ap(rdev, dev, ¶ms);
2653 wdev->preset_chan = params.channel;
2654 wdev->preset_chantype = params.channel_type;
2655 wdev->beacon_interval = params.beacon_interval;
2656 wdev->channel = params.channel;
2657 wdev->ssid_len = params.ssid_len;
2658 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
2663 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2665 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2666 struct net_device *dev = info->user_ptr[1];
2667 struct wireless_dev *wdev = dev->ieee80211_ptr;
2668 struct cfg80211_beacon_data params;
2671 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2672 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2675 if (!rdev->ops->change_beacon)
2678 if (!wdev->beacon_interval)
2681 err = nl80211_parse_beacon(info, ¶ms);
2685 return rdev_change_beacon(rdev, dev, ¶ms);
2688 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2691 struct net_device *dev = info->user_ptr[1];
2693 return cfg80211_stop_ap(rdev, dev);
2696 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2697 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2698 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2699 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2700 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2701 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2702 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2705 static int parse_station_flags(struct genl_info *info,
2706 enum nl80211_iftype iftype,
2707 struct station_parameters *params)
2709 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2714 * Try parsing the new attribute first so userspace
2715 * can specify both for older kernels.
2717 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2719 struct nl80211_sta_flag_update *sta_flags;
2721 sta_flags = nla_data(nla);
2722 params->sta_flags_mask = sta_flags->mask;
2723 params->sta_flags_set = sta_flags->set;
2724 if ((params->sta_flags_mask |
2725 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2730 /* if present, parse the old attribute */
2732 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2736 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2737 nla, sta_flags_policy))
2741 * Only allow certain flags for interface types so that
2742 * other attributes are silently ignored. Remember that
2743 * this is backward compatibility code with old userspace
2744 * and shouldn't be hit in other cases anyway.
2747 case NL80211_IFTYPE_AP:
2748 case NL80211_IFTYPE_AP_VLAN:
2749 case NL80211_IFTYPE_P2P_GO:
2750 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2751 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2752 BIT(NL80211_STA_FLAG_WME) |
2753 BIT(NL80211_STA_FLAG_MFP);
2755 case NL80211_IFTYPE_P2P_CLIENT:
2756 case NL80211_IFTYPE_STATION:
2757 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2758 BIT(NL80211_STA_FLAG_TDLS_PEER);
2760 case NL80211_IFTYPE_MESH_POINT:
2761 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2762 BIT(NL80211_STA_FLAG_MFP) |
2763 BIT(NL80211_STA_FLAG_AUTHORIZED);
2768 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2770 params->sta_flags_set |= (1<<flag);
2772 /* no longer support new API additions in old API */
2773 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2781 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2784 struct nlattr *rate;
2788 rate = nla_nest_start(msg, attr);
2790 goto nla_put_failure;
2792 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2793 bitrate = cfg80211_calculate_bitrate(info);
2794 /* report 16-bit bitrate only if we can */
2795 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2797 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
2798 (bitrate_compat > 0 &&
2799 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
2800 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2801 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2802 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2803 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2804 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2805 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2806 goto nla_put_failure;
2808 nla_nest_end(msg, rate);
2815 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
2817 struct cfg80211_registered_device *rdev,
2818 struct net_device *dev,
2819 const u8 *mac_addr, struct station_info *sinfo)
2822 struct nlattr *sinfoattr, *bss_param;
2824 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2828 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2829 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2830 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2831 goto nla_put_failure;
2833 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2835 goto nla_put_failure;
2836 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2837 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2838 sinfo->connected_time))
2839 goto nla_put_failure;
2840 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2841 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2842 sinfo->inactive_time))
2843 goto nla_put_failure;
2844 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2845 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2847 goto nla_put_failure;
2848 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2849 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2851 goto nla_put_failure;
2852 if ((sinfo->filled & STATION_INFO_LLID) &&
2853 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2854 goto nla_put_failure;
2855 if ((sinfo->filled & STATION_INFO_PLID) &&
2856 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2857 goto nla_put_failure;
2858 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2859 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2860 sinfo->plink_state))
2861 goto nla_put_failure;
2862 switch (rdev->wiphy.signal_type) {
2863 case CFG80211_SIGNAL_TYPE_MBM:
2864 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2865 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2867 goto nla_put_failure;
2868 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2869 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2871 goto nla_put_failure;
2876 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2877 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2878 NL80211_STA_INFO_TX_BITRATE))
2879 goto nla_put_failure;
2881 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2882 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2883 NL80211_STA_INFO_RX_BITRATE))
2884 goto nla_put_failure;
2886 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2887 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2889 goto nla_put_failure;
2890 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2891 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2893 goto nla_put_failure;
2894 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2895 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2897 goto nla_put_failure;
2898 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2899 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2901 goto nla_put_failure;
2902 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2903 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2904 sinfo->beacon_loss_count))
2905 goto nla_put_failure;
2906 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2907 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2909 goto nla_put_failure;
2911 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2912 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2913 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2914 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2915 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2916 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2917 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2918 sinfo->bss_param.dtim_period) ||
2919 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2920 sinfo->bss_param.beacon_interval))
2921 goto nla_put_failure;
2923 nla_nest_end(msg, bss_param);
2925 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2926 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2927 sizeof(struct nl80211_sta_flag_update),
2929 goto nla_put_failure;
2930 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2931 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2933 goto nla_put_failure;
2934 nla_nest_end(msg, sinfoattr);
2936 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2937 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2938 sinfo->assoc_req_ies))
2939 goto nla_put_failure;
2941 return genlmsg_end(msg, hdr);
2944 genlmsg_cancel(msg, hdr);
2948 static int nl80211_dump_station(struct sk_buff *skb,
2949 struct netlink_callback *cb)
2951 struct station_info sinfo;
2952 struct cfg80211_registered_device *dev;
2953 struct net_device *netdev;
2954 u8 mac_addr[ETH_ALEN];
2955 int sta_idx = cb->args[1];
2958 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2962 if (!dev->ops->dump_station) {
2968 memset(&sinfo, 0, sizeof(sinfo));
2969 err = rdev_dump_station(dev, netdev, sta_idx,
2976 if (nl80211_send_station(skb,
2977 NETLINK_CB(cb->skb).portid,
2978 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2979 dev, netdev, mac_addr,
2988 cb->args[1] = sta_idx;
2991 nl80211_finish_netdev_dump(dev);
2996 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2998 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2999 struct net_device *dev = info->user_ptr[1];
3000 struct station_info sinfo;
3001 struct sk_buff *msg;
3002 u8 *mac_addr = NULL;
3005 memset(&sinfo, 0, sizeof(sinfo));
3007 if (!info->attrs[NL80211_ATTR_MAC])
3010 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3012 if (!rdev->ops->get_station)
3015 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3019 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3023 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3024 rdev, dev, mac_addr, &sinfo) < 0) {
3029 return genlmsg_reply(msg, info);
3033 * Get vlan interface making sure it is running and on the right wiphy.
3035 static struct net_device *get_vlan(struct genl_info *info,
3036 struct cfg80211_registered_device *rdev)
3038 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3039 struct net_device *v;
3045 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3047 return ERR_PTR(-ENODEV);
3049 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3054 if (!netif_running(v)) {
3062 return ERR_PTR(ret);
3065 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3069 struct net_device *dev = info->user_ptr[1];
3070 struct station_parameters params;
3071 u8 *mac_addr = NULL;
3073 memset(¶ms, 0, sizeof(params));
3075 params.listen_interval = -1;
3076 params.plink_state = -1;
3078 if (info->attrs[NL80211_ATTR_STA_AID])
3081 if (!info->attrs[NL80211_ATTR_MAC])
3084 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3086 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3087 params.supported_rates =
3088 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3089 params.supported_rates_len =
3090 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3093 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3094 params.listen_interval =
3095 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3097 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3099 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3101 if (!rdev->ops->change_station)
3104 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3107 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3108 params.plink_action =
3109 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3111 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3112 params.plink_state =
3113 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3115 switch (dev->ieee80211_ptr->iftype) {
3116 case NL80211_IFTYPE_AP:
3117 case NL80211_IFTYPE_AP_VLAN:
3118 case NL80211_IFTYPE_P2P_GO:
3119 /* disallow mesh-specific things */
3120 if (params.plink_action)
3123 /* TDLS can't be set, ... */
3124 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3127 * ... but don't bother the driver with it. This works around
3128 * a hostapd/wpa_supplicant issue -- it always includes the
3129 * TLDS_PEER flag in the mask even for AP mode.
3131 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3133 /* accept only the listed bits */
3134 if (params.sta_flags_mask &
3135 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3136 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3137 BIT(NL80211_STA_FLAG_WME) |
3138 BIT(NL80211_STA_FLAG_MFP)))
3141 /* must be last in here for error handling */
3142 params.vlan = get_vlan(info, rdev);
3143 if (IS_ERR(params.vlan))
3144 return PTR_ERR(params.vlan);
3146 case NL80211_IFTYPE_P2P_CLIENT:
3147 case NL80211_IFTYPE_STATION:
3149 * Don't allow userspace to change the TDLS_PEER flag,
3150 * but silently ignore attempts to change it since we
3151 * don't have state here to verify that it doesn't try
3152 * to change the flag.
3154 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3156 case NL80211_IFTYPE_ADHOC:
3157 /* disallow things sta doesn't support */
3158 if (params.plink_action)
3162 if (params.listen_interval >= 0)
3164 /* reject any changes other than AUTHORIZED */
3165 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3168 case NL80211_IFTYPE_MESH_POINT:
3169 /* disallow things mesh doesn't support */
3174 if (params.listen_interval >= 0)
3177 * No special handling for TDLS here -- the userspace
3178 * mesh code doesn't have this bug.
3180 if (params.sta_flags_mask &
3181 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3182 BIT(NL80211_STA_FLAG_MFP) |
3183 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3190 /* be aware of params.vlan when changing code here */
3192 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3195 dev_put(params.vlan);
3200 static struct nla_policy
3201 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3202 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3203 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3206 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3208 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3210 struct net_device *dev = info->user_ptr[1];
3211 struct station_parameters params;
3212 u8 *mac_addr = NULL;
3214 memset(¶ms, 0, sizeof(params));
3216 if (!info->attrs[NL80211_ATTR_MAC])
3219 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3222 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3225 if (!info->attrs[NL80211_ATTR_STA_AID])
3228 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3229 params.supported_rates =
3230 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3231 params.supported_rates_len =
3232 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3233 params.listen_interval =
3234 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3236 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3237 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3240 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3242 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3244 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3246 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3248 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3249 params.plink_action =
3250 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3252 if (!rdev->ops->add_station)
3255 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3258 switch (dev->ieee80211_ptr->iftype) {
3259 case NL80211_IFTYPE_AP:
3260 case NL80211_IFTYPE_AP_VLAN:
3261 case NL80211_IFTYPE_P2P_GO:
3262 /* parse WME attributes if sta is WME capable */
3263 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3264 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3265 info->attrs[NL80211_ATTR_STA_WME]) {
3266 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3269 nla = info->attrs[NL80211_ATTR_STA_WME];
3270 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3271 nl80211_sta_wme_policy);
3275 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3276 params.uapsd_queues =
3277 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3278 if (params.uapsd_queues &
3279 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3282 if (tb[NL80211_STA_WME_MAX_SP])
3284 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3287 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3290 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3292 /* TDLS peers cannot be added */
3293 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3295 /* but don't bother the driver with it */
3296 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3298 /* must be last in here for error handling */
3299 params.vlan = get_vlan(info, rdev);
3300 if (IS_ERR(params.vlan))
3301 return PTR_ERR(params.vlan);
3303 case NL80211_IFTYPE_MESH_POINT:
3304 /* TDLS peers cannot be added */
3305 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3308 case NL80211_IFTYPE_STATION:
3309 /* Only TDLS peers can be added */
3310 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3312 /* Can only add if TDLS ... */
3313 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3315 /* ... with external setup is supported */
3316 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3323 /* be aware of params.vlan when changing code here */
3325 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
3328 dev_put(params.vlan);
3332 static int nl80211_del_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 u8 *mac_addr = NULL;
3338 if (info->attrs[NL80211_ATTR_MAC])
3339 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3341 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3342 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3343 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3347 if (!rdev->ops->del_station)
3350 return rdev_del_station(rdev, dev, mac_addr);
3353 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
3354 int flags, struct net_device *dev,
3355 u8 *dst, u8 *next_hop,
3356 struct mpath_info *pinfo)
3359 struct nlattr *pinfoattr;
3361 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3365 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3366 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3367 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3368 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3369 goto nla_put_failure;
3371 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3373 goto nla_put_failure;
3374 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3375 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3377 goto nla_put_failure;
3378 if (((pinfo->filled & MPATH_INFO_SN) &&
3379 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3380 ((pinfo->filled & MPATH_INFO_METRIC) &&
3381 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3383 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3384 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3386 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3387 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3389 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3390 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3391 pinfo->discovery_timeout)) ||
3392 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3393 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3394 pinfo->discovery_retries)))
3395 goto nla_put_failure;
3397 nla_nest_end(msg, pinfoattr);
3399 return genlmsg_end(msg, hdr);
3402 genlmsg_cancel(msg, hdr);
3406 static int nl80211_dump_mpath(struct sk_buff *skb,
3407 struct netlink_callback *cb)
3409 struct mpath_info pinfo;
3410 struct cfg80211_registered_device *dev;
3411 struct net_device *netdev;
3413 u8 next_hop[ETH_ALEN];
3414 int path_idx = cb->args[1];
3417 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3421 if (!dev->ops->dump_mpath) {
3426 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3432 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3439 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
3440 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3441 netdev, dst, next_hop,
3450 cb->args[1] = path_idx;
3453 nl80211_finish_netdev_dump(dev);
3457 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3461 struct net_device *dev = info->user_ptr[1];
3462 struct mpath_info pinfo;
3463 struct sk_buff *msg;
3465 u8 next_hop[ETH_ALEN];
3467 memset(&pinfo, 0, sizeof(pinfo));
3469 if (!info->attrs[NL80211_ATTR_MAC])
3472 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3474 if (!rdev->ops->get_mpath)
3477 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3480 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
3484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3488 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
3489 dev, dst, next_hop, &pinfo) < 0) {
3494 return genlmsg_reply(msg, info);
3497 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3499 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3500 struct net_device *dev = info->user_ptr[1];
3502 u8 *next_hop = NULL;
3504 if (!info->attrs[NL80211_ATTR_MAC])
3507 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3510 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3511 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3513 if (!rdev->ops->change_mpath)
3516 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3519 return rdev_change_mpath(rdev, dev, dst, next_hop);
3522 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3525 struct net_device *dev = info->user_ptr[1];
3527 u8 *next_hop = NULL;
3529 if (!info->attrs[NL80211_ATTR_MAC])
3532 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3535 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3536 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3538 if (!rdev->ops->add_mpath)
3541 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3544 return rdev_add_mpath(rdev, dev, dst, next_hop);
3547 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3549 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3550 struct net_device *dev = info->user_ptr[1];
3553 if (info->attrs[NL80211_ATTR_MAC])
3554 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3556 if (!rdev->ops->del_mpath)
3559 return rdev_del_mpath(rdev, dev, dst);
3562 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3564 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3565 struct net_device *dev = info->user_ptr[1];
3566 struct bss_parameters params;
3568 memset(¶ms, 0, sizeof(params));
3569 /* default to not changing parameters */
3570 params.use_cts_prot = -1;
3571 params.use_short_preamble = -1;
3572 params.use_short_slot_time = -1;
3573 params.ap_isolate = -1;
3574 params.ht_opmode = -1;
3576 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3577 params.use_cts_prot =
3578 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3579 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3580 params.use_short_preamble =
3581 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3582 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3583 params.use_short_slot_time =
3584 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3585 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3586 params.basic_rates =
3587 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3588 params.basic_rates_len =
3589 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3591 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3592 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3593 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3595 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3597 if (!rdev->ops->change_bss)
3600 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3601 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3604 return rdev_change_bss(rdev, dev, ¶ms);
3607 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3608 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3609 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3610 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3611 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3612 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3613 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3616 static int parse_reg_rule(struct nlattr *tb[],
3617 struct ieee80211_reg_rule *reg_rule)
3619 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3620 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3622 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3624 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3626 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3628 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3630 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3633 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3635 freq_range->start_freq_khz =
3636 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3637 freq_range->end_freq_khz =
3638 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3639 freq_range->max_bandwidth_khz =
3640 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3642 power_rule->max_eirp =
3643 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3645 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3646 power_rule->max_antenna_gain =
3647 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3652 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3656 enum nl80211_user_reg_hint_type user_reg_hint_type;
3659 * You should only get this when cfg80211 hasn't yet initialized
3660 * completely when built-in to the kernel right between the time
3661 * window between nl80211_init() and regulatory_init(), if that is
3664 mutex_lock(&cfg80211_mutex);
3665 if (unlikely(!cfg80211_regdomain)) {
3666 mutex_unlock(&cfg80211_mutex);
3667 return -EINPROGRESS;
3669 mutex_unlock(&cfg80211_mutex);
3671 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3674 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3676 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3677 user_reg_hint_type =
3678 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3680 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3682 switch (user_reg_hint_type) {
3683 case NL80211_USER_REG_HINT_USER:
3684 case NL80211_USER_REG_HINT_CELL_BASE:
3690 r = regulatory_hint_user(data, user_reg_hint_type);
3695 static int nl80211_get_mesh_config(struct sk_buff *skb,
3696 struct genl_info *info)
3698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3699 struct net_device *dev = info->user_ptr[1];
3700 struct wireless_dev *wdev = dev->ieee80211_ptr;
3701 struct mesh_config cur_params;
3704 struct nlattr *pinfoattr;
3705 struct sk_buff *msg;
3707 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3710 if (!rdev->ops->get_mesh_config)
3714 /* If not connected, get default parameters */
3715 if (!wdev->mesh_id_len)
3716 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3718 err = rdev_get_mesh_config(rdev, dev, &cur_params);
3724 /* Draw up a netlink message to send back */
3725 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3728 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3729 NL80211_CMD_GET_MESH_CONFIG);
3732 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3734 goto nla_put_failure;
3735 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3736 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3737 cur_params.dot11MeshRetryTimeout) ||
3738 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3739 cur_params.dot11MeshConfirmTimeout) ||
3740 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3741 cur_params.dot11MeshHoldingTimeout) ||
3742 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3743 cur_params.dot11MeshMaxPeerLinks) ||
3744 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3745 cur_params.dot11MeshMaxRetries) ||
3746 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3747 cur_params.dot11MeshTTL) ||
3748 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3749 cur_params.element_ttl) ||
3750 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3751 cur_params.auto_open_plinks) ||
3752 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3753 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3754 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3755 cur_params.dot11MeshHWMPmaxPREQretries) ||
3756 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3757 cur_params.path_refresh_time) ||
3758 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3759 cur_params.min_discovery_timeout) ||
3760 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3761 cur_params.dot11MeshHWMPactivePathTimeout) ||
3762 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3763 cur_params.dot11MeshHWMPpreqMinInterval) ||
3764 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3765 cur_params.dot11MeshHWMPperrMinInterval) ||
3766 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3767 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3768 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3769 cur_params.dot11MeshHWMPRootMode) ||
3770 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3771 cur_params.dot11MeshHWMPRannInterval) ||
3772 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3773 cur_params.dot11MeshGateAnnouncementProtocol) ||
3774 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3775 cur_params.dot11MeshForwarding) ||
3776 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3777 cur_params.rssi_threshold) ||
3778 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3779 cur_params.ht_opmode) ||
3780 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3781 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3782 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3783 cur_params.dot11MeshHWMProotInterval) ||
3784 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3785 cur_params.dot11MeshHWMPconfirmationInterval))
3786 goto nla_put_failure;
3787 nla_nest_end(msg, pinfoattr);
3788 genlmsg_end(msg, hdr);
3789 return genlmsg_reply(msg, info);
3792 genlmsg_cancel(msg, hdr);
3798 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3799 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3800 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3801 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3802 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3803 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3804 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3805 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3806 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3807 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3808 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3809 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3810 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3811 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3812 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3813 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3814 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3815 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3816 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3817 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3818 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3819 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3820 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3821 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3822 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3823 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3826 static const struct nla_policy
3827 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3828 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3829 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3830 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3831 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3832 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3833 .len = IEEE80211_MAX_DATA_LEN },
3834 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3837 static int nl80211_parse_mesh_config(struct genl_info *info,
3838 struct mesh_config *cfg,
3841 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3844 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3846 if (table[attr_num]) {\
3847 cfg->param = nla_fn(table[attr_num]); \
3848 mask |= (1 << (attr_num - 1)); \
3853 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3855 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3856 info->attrs[NL80211_ATTR_MESH_CONFIG],
3857 nl80211_meshconf_params_policy))
3860 /* This makes sure that there aren't more than 32 mesh config
3861 * parameters (otherwise our bitfield scheme would not work.) */
3862 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3864 /* Fill in the params struct */
3865 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3866 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3868 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3869 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3871 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3872 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3874 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3875 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3877 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3878 mask, NL80211_MESHCONF_MAX_RETRIES,
3880 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3881 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3882 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3883 mask, NL80211_MESHCONF_ELEMENT_TTL,
3885 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3886 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3888 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3889 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3891 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3892 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3894 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3895 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3897 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3898 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3900 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3901 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3903 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3904 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3906 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3907 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3909 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3910 dot11MeshHWMPnetDiameterTraversalTime, mask,
3911 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3913 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3914 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3915 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3916 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3918 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3919 dot11MeshGateAnnouncementProtocol, mask,
3920 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3922 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3923 mask, NL80211_MESHCONF_FORWARDING,
3925 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3926 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3929 mask, NL80211_MESHCONF_HT_OPMODE,
3931 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3933 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3935 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3936 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3939 dot11MeshHWMPconfirmationInterval, mask,
3940 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3947 #undef FILL_IN_MESH_PARAM_IF_SET
3950 static int nl80211_parse_mesh_setup(struct genl_info *info,
3951 struct mesh_setup *setup)
3953 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3955 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3957 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3958 info->attrs[NL80211_ATTR_MESH_SETUP],
3959 nl80211_mesh_setup_params_policy))
3962 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3963 setup->sync_method =
3964 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3965 IEEE80211_SYNC_METHOD_VENDOR :
3966 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3968 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3969 setup->path_sel_proto =
3970 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3971 IEEE80211_PATH_PROTOCOL_VENDOR :
3972 IEEE80211_PATH_PROTOCOL_HWMP;
3974 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3975 setup->path_metric =
3976 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3977 IEEE80211_PATH_METRIC_VENDOR :
3978 IEEE80211_PATH_METRIC_AIRTIME;
3981 if (tb[NL80211_MESH_SETUP_IE]) {
3982 struct nlattr *ieattr =
3983 tb[NL80211_MESH_SETUP_IE];
3984 if (!is_valid_ie_attr(ieattr))
3986 setup->ie = nla_data(ieattr);
3987 setup->ie_len = nla_len(ieattr);
3989 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3990 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3995 static int nl80211_update_mesh_config(struct sk_buff *skb,
3996 struct genl_info *info)
3998 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3999 struct net_device *dev = info->user_ptr[1];
4000 struct wireless_dev *wdev = dev->ieee80211_ptr;
4001 struct mesh_config cfg;
4005 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4008 if (!rdev->ops->update_mesh_config)
4011 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4016 if (!wdev->mesh_id_len)
4020 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4027 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4029 struct sk_buff *msg;
4031 struct nlattr *nl_reg_rules;
4035 mutex_lock(&cfg80211_mutex);
4037 if (!cfg80211_regdomain)
4040 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4046 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4047 NL80211_CMD_GET_REG);
4051 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
4052 cfg80211_regdomain->alpha2) ||
4053 (cfg80211_regdomain->dfs_region &&
4054 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
4055 cfg80211_regdomain->dfs_region)))
4056 goto nla_put_failure;
4058 if (reg_last_request_cell_base() &&
4059 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4060 NL80211_USER_REG_HINT_CELL_BASE))
4061 goto nla_put_failure;
4063 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4065 goto nla_put_failure;
4067 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
4068 struct nlattr *nl_reg_rule;
4069 const struct ieee80211_reg_rule *reg_rule;
4070 const struct ieee80211_freq_range *freq_range;
4071 const struct ieee80211_power_rule *power_rule;
4073 reg_rule = &cfg80211_regdomain->reg_rules[i];
4074 freq_range = ®_rule->freq_range;
4075 power_rule = ®_rule->power_rule;
4077 nl_reg_rule = nla_nest_start(msg, i);
4079 goto nla_put_failure;
4081 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4083 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4084 freq_range->start_freq_khz) ||
4085 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4086 freq_range->end_freq_khz) ||
4087 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4088 freq_range->max_bandwidth_khz) ||
4089 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4090 power_rule->max_antenna_gain) ||
4091 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4092 power_rule->max_eirp))
4093 goto nla_put_failure;
4095 nla_nest_end(msg, nl_reg_rule);
4098 nla_nest_end(msg, nl_reg_rules);
4100 genlmsg_end(msg, hdr);
4101 err = genlmsg_reply(msg, info);
4105 genlmsg_cancel(msg, hdr);
4110 mutex_unlock(&cfg80211_mutex);
4114 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4116 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4117 struct nlattr *nl_reg_rule;
4118 char *alpha2 = NULL;
4119 int rem_reg_rules = 0, r = 0;
4120 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4122 struct ieee80211_regdomain *rd = NULL;
4124 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4127 if (!info->attrs[NL80211_ATTR_REG_RULES])
4130 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4132 if (info->attrs[NL80211_ATTR_DFS_REGION])
4133 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4135 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4138 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4142 mutex_lock(&cfg80211_mutex);
4144 if (!reg_is_valid_request(alpha2)) {
4149 size_of_regd = sizeof(struct ieee80211_regdomain) +
4150 (num_rules * sizeof(struct ieee80211_reg_rule));
4152 rd = kzalloc(size_of_regd, GFP_KERNEL);
4158 rd->n_reg_rules = num_rules;
4159 rd->alpha2[0] = alpha2[0];
4160 rd->alpha2[1] = alpha2[1];
4163 * Disable DFS master mode if the DFS region was
4164 * not supported or known on this kernel.
4166 if (reg_supported_dfs_region(dfs_region))
4167 rd->dfs_region = dfs_region;
4169 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4171 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4172 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4174 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4180 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4186 BUG_ON(rule_idx != num_rules);
4190 mutex_unlock(&cfg80211_mutex);
4195 mutex_unlock(&cfg80211_mutex);
4200 static int validate_scan_freqs(struct nlattr *freqs)
4202 struct nlattr *attr1, *attr2;
4203 int n_channels = 0, tmp1, tmp2;
4205 nla_for_each_nested(attr1, freqs, tmp1) {
4208 * Some hardware has a limited channel list for
4209 * scanning, and it is pretty much nonsensical
4210 * to scan for a channel twice, so disallow that
4211 * and don't require drivers to check that the
4212 * channel list they get isn't longer than what
4213 * they can scan, as long as they can scan all
4214 * the channels they registered at once.
4216 nla_for_each_nested(attr2, freqs, tmp2)
4217 if (attr1 != attr2 &&
4218 nla_get_u32(attr1) == nla_get_u32(attr2))
4225 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4227 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4228 struct wireless_dev *wdev = info->user_ptr[1];
4229 struct cfg80211_scan_request *request;
4230 struct nlattr *attr;
4231 struct wiphy *wiphy;
4232 int err, tmp, n_ssids = 0, n_channels, i;
4235 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4238 wiphy = &rdev->wiphy;
4240 if (!rdev->ops->scan)
4246 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4247 n_channels = validate_scan_freqs(
4248 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4252 enum ieee80211_band band;
4255 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4256 if (wiphy->bands[band])
4257 n_channels += wiphy->bands[band]->n_channels;
4260 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4261 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4264 if (n_ssids > wiphy->max_scan_ssids)
4267 if (info->attrs[NL80211_ATTR_IE])
4268 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4272 if (ie_len > wiphy->max_scan_ie_len)
4275 request = kzalloc(sizeof(*request)
4276 + sizeof(*request->ssids) * n_ssids
4277 + sizeof(*request->channels) * n_channels
4278 + ie_len, GFP_KERNEL);
4283 request->ssids = (void *)&request->channels[n_channels];
4284 request->n_ssids = n_ssids;
4287 request->ie = (void *)(request->ssids + n_ssids);
4289 request->ie = (void *)(request->channels + n_channels);
4293 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4294 /* user specified, bail out if channel not found */
4295 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4296 struct ieee80211_channel *chan;
4298 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4305 /* ignore disabled channels */
4306 if (chan->flags & IEEE80211_CHAN_DISABLED)
4309 request->channels[i] = chan;
4313 enum ieee80211_band band;
4316 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4318 if (!wiphy->bands[band])
4320 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4321 struct ieee80211_channel *chan;
4323 chan = &wiphy->bands[band]->channels[j];
4325 if (chan->flags & IEEE80211_CHAN_DISABLED)
4328 request->channels[i] = chan;
4339 request->n_channels = i;
4342 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4343 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4344 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4348 request->ssids[i].ssid_len = nla_len(attr);
4349 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4354 if (info->attrs[NL80211_ATTR_IE]) {
4355 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4356 memcpy((void *)request->ie,
4357 nla_data(info->attrs[NL80211_ATTR_IE]),
4361 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4362 if (wiphy->bands[i])
4364 (1 << wiphy->bands[i]->n_bitrates) - 1;
4366 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4367 nla_for_each_nested(attr,
4368 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4370 enum ieee80211_band band = nla_type(attr);
4372 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4376 err = ieee80211_get_ratemask(wiphy->bands[band],
4379 &request->rates[band]);
4385 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4386 request->flags = nla_get_u32(
4387 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4388 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4389 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4390 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4391 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4398 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4400 request->wdev = wdev;
4401 request->wiphy = &rdev->wiphy;
4402 request->scan_start = jiffies;
4404 rdev->scan_req = request;
4405 err = rdev_scan(rdev, request);
4408 nl80211_send_scan_start(rdev, wdev);
4410 dev_hold(wdev->netdev);
4413 rdev->scan_req = NULL;
4420 static int nl80211_start_sched_scan(struct sk_buff *skb,
4421 struct genl_info *info)
4423 struct cfg80211_sched_scan_request *request;
4424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4425 struct net_device *dev = info->user_ptr[1];
4426 struct nlattr *attr;
4427 struct wiphy *wiphy;
4428 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4430 enum ieee80211_band band;
4432 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4434 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4435 !rdev->ops->sched_scan_start)
4438 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4441 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4444 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4448 wiphy = &rdev->wiphy;
4450 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4451 n_channels = validate_scan_freqs(
4452 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4458 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4459 if (wiphy->bands[band])
4460 n_channels += wiphy->bands[band]->n_channels;
4463 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4464 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4468 if (n_ssids > wiphy->max_sched_scan_ssids)
4471 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4472 nla_for_each_nested(attr,
4473 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4477 if (n_match_sets > wiphy->max_match_sets)
4480 if (info->attrs[NL80211_ATTR_IE])
4481 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4485 if (ie_len > wiphy->max_sched_scan_ie_len)
4488 mutex_lock(&rdev->sched_scan_mtx);
4490 if (rdev->sched_scan_req) {
4495 request = kzalloc(sizeof(*request)
4496 + sizeof(*request->ssids) * n_ssids
4497 + sizeof(*request->match_sets) * n_match_sets
4498 + sizeof(*request->channels) * n_channels
4499 + ie_len, GFP_KERNEL);
4506 request->ssids = (void *)&request->channels[n_channels];
4507 request->n_ssids = n_ssids;
4510 request->ie = (void *)(request->ssids + n_ssids);
4512 request->ie = (void *)(request->channels + n_channels);
4517 request->match_sets = (void *)(request->ie + ie_len);
4518 else if (request->ssids)
4519 request->match_sets =
4520 (void *)(request->ssids + n_ssids);
4522 request->match_sets =
4523 (void *)(request->channels + n_channels);
4525 request->n_match_sets = n_match_sets;
4528 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4529 /* user specified, bail out if channel not found */
4530 nla_for_each_nested(attr,
4531 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4533 struct ieee80211_channel *chan;
4535 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4542 /* ignore disabled channels */
4543 if (chan->flags & IEEE80211_CHAN_DISABLED)
4546 request->channels[i] = chan;
4551 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4553 if (!wiphy->bands[band])
4555 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4556 struct ieee80211_channel *chan;
4558 chan = &wiphy->bands[band]->channels[j];
4560 if (chan->flags & IEEE80211_CHAN_DISABLED)
4563 request->channels[i] = chan;
4574 request->n_channels = i;
4577 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4578 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4580 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4584 request->ssids[i].ssid_len = nla_len(attr);
4585 memcpy(request->ssids[i].ssid, nla_data(attr),
4592 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4593 nla_for_each_nested(attr,
4594 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4596 struct nlattr *ssid, *rssi;
4598 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4599 nla_data(attr), nla_len(attr),
4600 nl80211_match_policy);
4601 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4603 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4607 memcpy(request->match_sets[i].ssid.ssid,
4608 nla_data(ssid), nla_len(ssid));
4609 request->match_sets[i].ssid.ssid_len =
4612 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4614 request->rssi_thold = nla_get_u32(rssi);
4616 request->rssi_thold =
4617 NL80211_SCAN_RSSI_THOLD_OFF;
4622 if (info->attrs[NL80211_ATTR_IE]) {
4623 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4624 memcpy((void *)request->ie,
4625 nla_data(info->attrs[NL80211_ATTR_IE]),
4629 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4630 request->flags = nla_get_u32(
4631 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4632 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4633 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4634 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4635 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4642 request->wiphy = &rdev->wiphy;
4643 request->interval = interval;
4644 request->scan_start = jiffies;
4646 err = rdev_sched_scan_start(rdev, dev, request);
4648 rdev->sched_scan_req = request;
4649 nl80211_send_sched_scan(rdev, dev,
4650 NL80211_CMD_START_SCHED_SCAN);
4657 mutex_unlock(&rdev->sched_scan_mtx);
4661 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4662 struct genl_info *info)
4664 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4667 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4668 !rdev->ops->sched_scan_stop)
4671 mutex_lock(&rdev->sched_scan_mtx);
4672 err = __cfg80211_stop_sched_scan(rdev, false);
4673 mutex_unlock(&rdev->sched_scan_mtx);
4678 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4680 struct cfg80211_registered_device *rdev,
4681 struct wireless_dev *wdev,
4682 struct cfg80211_internal_bss *intbss)
4684 struct cfg80211_bss *res = &intbss->pub;
4688 ASSERT_WDEV_LOCK(wdev);
4690 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
4691 NL80211_CMD_NEW_SCAN_RESULTS);
4695 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4697 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4698 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4699 goto nla_put_failure;
4701 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4703 goto nla_put_failure;
4704 if ((!is_zero_ether_addr(res->bssid) &&
4705 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4706 (res->information_elements && res->len_information_elements &&
4707 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4708 res->len_information_elements,
4709 res->information_elements)) ||
4710 (res->beacon_ies && res->len_beacon_ies &&
4711 res->beacon_ies != res->information_elements &&
4712 nla_put(msg, NL80211_BSS_BEACON_IES,
4713 res->len_beacon_ies, res->beacon_ies)))
4714 goto nla_put_failure;
4716 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4717 goto nla_put_failure;
4718 if (res->beacon_interval &&
4719 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4720 goto nla_put_failure;
4721 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4722 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4723 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4724 jiffies_to_msecs(jiffies - intbss->ts)))
4725 goto nla_put_failure;
4727 switch (rdev->wiphy.signal_type) {
4728 case CFG80211_SIGNAL_TYPE_MBM:
4729 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4730 goto nla_put_failure;
4732 case CFG80211_SIGNAL_TYPE_UNSPEC:
4733 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4734 goto nla_put_failure;
4740 switch (wdev->iftype) {
4741 case NL80211_IFTYPE_P2P_CLIENT:
4742 case NL80211_IFTYPE_STATION:
4743 if (intbss == wdev->current_bss &&
4744 nla_put_u32(msg, NL80211_BSS_STATUS,
4745 NL80211_BSS_STATUS_ASSOCIATED))
4746 goto nla_put_failure;
4748 case NL80211_IFTYPE_ADHOC:
4749 if (intbss == wdev->current_bss &&
4750 nla_put_u32(msg, NL80211_BSS_STATUS,
4751 NL80211_BSS_STATUS_IBSS_JOINED))
4752 goto nla_put_failure;
4758 nla_nest_end(msg, bss);
4760 return genlmsg_end(msg, hdr);
4763 genlmsg_cancel(msg, hdr);
4767 static int nl80211_dump_scan(struct sk_buff *skb,
4768 struct netlink_callback *cb)
4770 struct cfg80211_registered_device *rdev;
4771 struct net_device *dev;
4772 struct cfg80211_internal_bss *scan;
4773 struct wireless_dev *wdev;
4774 int start = cb->args[1], idx = 0;
4777 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4781 wdev = dev->ieee80211_ptr;
4784 spin_lock_bh(&rdev->bss_lock);
4785 cfg80211_bss_expire(rdev);
4787 cb->seq = rdev->bss_generation;
4789 list_for_each_entry(scan, &rdev->bss_list, list) {
4792 if (nl80211_send_bss(skb, cb,
4793 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4794 rdev, wdev, scan) < 0) {
4800 spin_unlock_bh(&rdev->bss_lock);
4804 nl80211_finish_netdev_dump(rdev);
4809 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
4810 int flags, struct net_device *dev,
4811 struct survey_info *survey)
4814 struct nlattr *infoattr;
4816 hdr = nl80211hdr_put(msg, portid, seq, flags,
4817 NL80211_CMD_NEW_SURVEY_RESULTS);
4821 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4822 goto nla_put_failure;
4824 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4826 goto nla_put_failure;
4828 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4829 survey->channel->center_freq))
4830 goto nla_put_failure;
4832 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4833 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4834 goto nla_put_failure;
4835 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4836 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4837 goto nla_put_failure;
4838 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4839 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4840 survey->channel_time))
4841 goto nla_put_failure;
4842 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4843 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4844 survey->channel_time_busy))
4845 goto nla_put_failure;
4846 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4847 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4848 survey->channel_time_ext_busy))
4849 goto nla_put_failure;
4850 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4851 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4852 survey->channel_time_rx))
4853 goto nla_put_failure;
4854 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4855 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4856 survey->channel_time_tx))
4857 goto nla_put_failure;
4859 nla_nest_end(msg, infoattr);
4861 return genlmsg_end(msg, hdr);
4864 genlmsg_cancel(msg, hdr);
4868 static int nl80211_dump_survey(struct sk_buff *skb,
4869 struct netlink_callback *cb)
4871 struct survey_info survey;
4872 struct cfg80211_registered_device *dev;
4873 struct net_device *netdev;
4874 int survey_idx = cb->args[1];
4877 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4881 if (!dev->ops->dump_survey) {
4887 struct ieee80211_channel *chan;
4889 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
4895 /* Survey without a channel doesn't make sense */
4896 if (!survey.channel) {
4901 chan = ieee80211_get_channel(&dev->wiphy,
4902 survey.channel->center_freq);
4903 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4908 if (nl80211_send_survey(skb,
4909 NETLINK_CB(cb->skb).portid,
4910 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4918 cb->args[1] = survey_idx;
4921 nl80211_finish_netdev_dump(dev);
4925 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4927 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4928 NL80211_WPA_VERSION_2));
4931 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4934 struct net_device *dev = info->user_ptr[1];
4935 struct ieee80211_channel *chan;
4936 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
4937 int err, ssid_len, ie_len = 0, sae_data_len = 0;
4938 enum nl80211_auth_type auth_type;
4939 struct key_parse key;
4940 bool local_state_change;
4942 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4945 if (!info->attrs[NL80211_ATTR_MAC])
4948 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4951 if (!info->attrs[NL80211_ATTR_SSID])
4954 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4957 err = nl80211_parse_key(info, &key);
4962 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4964 if (!key.p.key || !key.p.key_len)
4966 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4967 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4968 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4969 key.p.key_len != WLAN_KEY_LEN_WEP104))
4981 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4982 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4991 if (!rdev->ops->auth)
4994 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4995 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4998 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4999 chan = ieee80211_get_channel(&rdev->wiphy,
5000 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5001 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5004 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5005 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5007 if (info->attrs[NL80211_ATTR_IE]) {
5008 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5009 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5012 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5013 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5016 if (auth_type == NL80211_AUTHTYPE_SAE &&
5017 !info->attrs[NL80211_ATTR_SAE_DATA])
5020 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5021 if (auth_type != NL80211_AUTHTYPE_SAE)
5023 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5024 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5025 /* need to include at least Auth Transaction and Status Code */
5026 if (sae_data_len < 4)
5030 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5033 * Since we no longer track auth state, ignore
5034 * requests to only change local state.
5036 if (local_state_change)
5039 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5040 ssid, ssid_len, ie, ie_len,
5041 key.p.key, key.p.key_len, key.idx,
5042 sae_data, sae_data_len);
5045 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5046 struct genl_info *info,
5047 struct cfg80211_crypto_settings *settings,
5050 memset(settings, 0, sizeof(*settings));
5052 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5054 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5056 proto = nla_get_u16(
5057 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5058 settings->control_port_ethertype = cpu_to_be16(proto);
5059 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5062 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5063 settings->control_port_no_encrypt = true;
5065 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5067 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5071 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5072 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5073 settings->n_ciphers_pairwise = len / sizeof(u32);
5075 if (len % sizeof(u32))
5078 if (settings->n_ciphers_pairwise > cipher_limit)
5081 memcpy(settings->ciphers_pairwise, data, len);
5083 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5084 if (!cfg80211_supported_cipher_suite(
5086 settings->ciphers_pairwise[i]))
5090 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5091 settings->cipher_group =
5092 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5093 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5094 settings->cipher_group))
5098 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5099 settings->wpa_versions =
5100 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5101 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5105 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5109 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5110 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5111 settings->n_akm_suites = len / sizeof(u32);
5113 if (len % sizeof(u32))
5116 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5119 memcpy(settings->akm_suites, data, len);
5125 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5128 struct net_device *dev = info->user_ptr[1];
5129 struct cfg80211_crypto_settings crypto;
5130 struct ieee80211_channel *chan;
5131 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5132 int err, ssid_len, ie_len = 0;
5133 bool use_mfp = false;
5135 struct ieee80211_ht_cap *ht_capa = NULL;
5136 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5138 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5141 if (!info->attrs[NL80211_ATTR_MAC] ||
5142 !info->attrs[NL80211_ATTR_SSID] ||
5143 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5146 if (!rdev->ops->assoc)
5149 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5150 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5153 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5155 chan = ieee80211_get_channel(&rdev->wiphy,
5156 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5157 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5160 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5161 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5163 if (info->attrs[NL80211_ATTR_IE]) {
5164 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5165 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5168 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5169 enum nl80211_mfp mfp =
5170 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5171 if (mfp == NL80211_MFP_REQUIRED)
5173 else if (mfp != NL80211_MFP_NO)
5177 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5178 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5180 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5181 flags |= ASSOC_REQ_DISABLE_HT;
5183 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5185 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5187 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5190 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5193 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5195 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5196 ssid, ssid_len, ie, ie_len, use_mfp,
5197 &crypto, flags, ht_capa,
5203 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5205 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5206 struct net_device *dev = info->user_ptr[1];
5207 const u8 *ie = NULL, *bssid;
5210 bool local_state_change;
5212 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5215 if (!info->attrs[NL80211_ATTR_MAC])
5218 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5221 if (!rdev->ops->deauth)
5224 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5225 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5228 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5230 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5231 if (reason_code == 0) {
5232 /* Reason Code 0 is reserved */
5236 if (info->attrs[NL80211_ATTR_IE]) {
5237 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5238 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5241 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5243 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5244 local_state_change);
5247 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5249 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5250 struct net_device *dev = info->user_ptr[1];
5251 const u8 *ie = NULL, *bssid;
5254 bool local_state_change;
5256 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5259 if (!info->attrs[NL80211_ATTR_MAC])
5262 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5265 if (!rdev->ops->disassoc)
5268 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5269 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5272 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5274 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5275 if (reason_code == 0) {
5276 /* Reason Code 0 is reserved */
5280 if (info->attrs[NL80211_ATTR_IE]) {
5281 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5282 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5285 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5287 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5288 local_state_change);
5292 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5293 int mcast_rate[IEEE80211_NUM_BANDS],
5296 struct wiphy *wiphy = &rdev->wiphy;
5300 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5301 struct ieee80211_supported_band *sband;
5303 sband = wiphy->bands[band];
5307 for (i = 0; i < sband->n_bitrates; i++) {
5308 if (sband->bitrates[i].bitrate == rateval) {
5309 mcast_rate[band] = i + 1;
5319 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5321 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5322 struct net_device *dev = info->user_ptr[1];
5323 struct cfg80211_ibss_params ibss;
5324 struct wiphy *wiphy;
5325 struct cfg80211_cached_keys *connkeys = NULL;
5328 memset(&ibss, 0, sizeof(ibss));
5330 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5333 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5334 !info->attrs[NL80211_ATTR_SSID] ||
5335 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5338 ibss.beacon_interval = 100;
5340 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5341 ibss.beacon_interval =
5342 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5343 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5347 if (!rdev->ops->join_ibss)
5350 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5353 wiphy = &rdev->wiphy;
5355 if (info->attrs[NL80211_ATTR_MAC]) {
5356 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5358 if (!is_valid_ether_addr(ibss.bssid))
5361 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5362 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5364 if (info->attrs[NL80211_ATTR_IE]) {
5365 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5366 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5369 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5370 enum nl80211_channel_type channel_type;
5372 if (!nl80211_valid_channel_type(info, &channel_type))
5375 if (channel_type != NL80211_CHAN_NO_HT &&
5376 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5379 ibss.channel_type = channel_type;
5381 ibss.channel_type = NL80211_CHAN_NO_HT;
5384 ibss.channel = rdev_freq_to_chan(rdev,
5385 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5387 if (!ibss.channel ||
5388 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5389 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5392 /* Both channels should be able to initiate communication */
5393 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5394 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5395 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5399 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5400 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5402 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5404 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5406 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5407 struct ieee80211_supported_band *sband =
5408 wiphy->bands[ibss.channel->band];
5410 err = ieee80211_get_ratemask(sband, rates, n_rates,
5416 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5417 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5418 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5421 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5424 connkeys = nl80211_parse_connkeys(rdev,
5425 info->attrs[NL80211_ATTR_KEYS],
5427 if (IS_ERR(connkeys))
5428 return PTR_ERR(connkeys);
5430 if ((ibss.channel_type != NL80211_CHAN_NO_HT) && no_ht) {
5437 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5439 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5445 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5447 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5448 struct net_device *dev = info->user_ptr[1];
5450 if (!rdev->ops->leave_ibss)
5453 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5456 return cfg80211_leave_ibss(rdev, dev, false);
5459 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5461 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5462 struct net_device *dev = info->user_ptr[1];
5463 int mcast_rate[IEEE80211_NUM_BANDS];
5467 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5468 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5471 if (!rdev->ops->set_mcast_rate)
5474 memset(mcast_rate, 0, sizeof(mcast_rate));
5476 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5479 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5480 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5483 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5489 #ifdef CONFIG_NL80211_TESTMODE
5490 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5494 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5499 if (!info->attrs[NL80211_ATTR_TESTDATA])
5503 if (rdev->ops->testmode_cmd) {
5504 rdev->testmode_info = info;
5505 err = rdev_testmode_cmd(rdev,
5506 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5507 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5508 rdev->testmode_info = NULL;
5514 static int nl80211_testmode_dump(struct sk_buff *skb,
5515 struct netlink_callback *cb)
5517 struct cfg80211_registered_device *rdev;
5525 * 0 is a valid index, but not valid for args[0],
5526 * so we need to offset by 1.
5528 phy_idx = cb->args[0] - 1;
5530 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5531 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5536 mutex_lock(&cfg80211_mutex);
5537 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5538 nl80211_fam.attrbuf);
5540 mutex_unlock(&cfg80211_mutex);
5541 return PTR_ERR(rdev);
5543 phy_idx = rdev->wiphy_idx;
5545 mutex_unlock(&cfg80211_mutex);
5547 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5549 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5553 data = nla_data((void *)cb->args[1]);
5554 data_len = nla_len((void *)cb->args[1]);
5557 mutex_lock(&cfg80211_mutex);
5558 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5560 mutex_unlock(&cfg80211_mutex);
5563 cfg80211_lock_rdev(rdev);
5564 mutex_unlock(&cfg80211_mutex);
5566 if (!rdev->ops->testmode_dump) {
5572 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
5573 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5574 NL80211_CMD_TESTMODE);
5575 struct nlattr *tmdata;
5577 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5578 genlmsg_cancel(skb, hdr);
5582 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5584 genlmsg_cancel(skb, hdr);
5587 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
5588 nla_nest_end(skb, tmdata);
5590 if (err == -ENOBUFS || err == -ENOENT) {
5591 genlmsg_cancel(skb, hdr);
5594 genlmsg_cancel(skb, hdr);
5598 genlmsg_end(skb, hdr);
5603 cb->args[0] = phy_idx + 1;
5605 cfg80211_unlock_rdev(rdev);
5609 static struct sk_buff *
5610 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5611 int approxlen, u32 portid, u32 seq, gfp_t gfp)
5613 struct sk_buff *skb;
5615 struct nlattr *data;
5617 skb = nlmsg_new(approxlen + 100, gfp);
5621 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
5627 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5628 goto nla_put_failure;
5629 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5631 ((void **)skb->cb)[0] = rdev;
5632 ((void **)skb->cb)[1] = hdr;
5633 ((void **)skb->cb)[2] = data;
5642 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5645 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5647 if (WARN_ON(!rdev->testmode_info))
5650 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5651 rdev->testmode_info->snd_portid,
5652 rdev->testmode_info->snd_seq,
5655 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5657 int cfg80211_testmode_reply(struct sk_buff *skb)
5659 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5660 void *hdr = ((void **)skb->cb)[1];
5661 struct nlattr *data = ((void **)skb->cb)[2];
5663 if (WARN_ON(!rdev->testmode_info)) {
5668 nla_nest_end(skb, data);
5669 genlmsg_end(skb, hdr);
5670 return genlmsg_reply(skb, rdev->testmode_info);
5672 EXPORT_SYMBOL(cfg80211_testmode_reply);
5674 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5675 int approxlen, gfp_t gfp)
5677 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5679 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5681 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5683 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5685 void *hdr = ((void **)skb->cb)[1];
5686 struct nlattr *data = ((void **)skb->cb)[2];
5688 nla_nest_end(skb, data);
5689 genlmsg_end(skb, hdr);
5690 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5692 EXPORT_SYMBOL(cfg80211_testmode_event);
5695 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5698 struct net_device *dev = info->user_ptr[1];
5699 struct cfg80211_connect_params connect;
5700 struct wiphy *wiphy;
5701 struct cfg80211_cached_keys *connkeys = NULL;
5704 memset(&connect, 0, sizeof(connect));
5706 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5709 if (!info->attrs[NL80211_ATTR_SSID] ||
5710 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5713 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5715 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5716 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5717 NL80211_CMD_CONNECT))
5720 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5722 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5724 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5725 NL80211_MAX_NR_CIPHER_SUITES);
5729 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5730 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5733 wiphy = &rdev->wiphy;
5735 connect.bg_scan_period = -1;
5736 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5737 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5738 connect.bg_scan_period =
5739 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5742 if (info->attrs[NL80211_ATTR_MAC])
5743 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5744 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5745 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5747 if (info->attrs[NL80211_ATTR_IE]) {
5748 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5749 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5752 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5754 ieee80211_get_channel(wiphy,
5755 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5756 if (!connect.channel ||
5757 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5761 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5762 connkeys = nl80211_parse_connkeys(rdev,
5763 info->attrs[NL80211_ATTR_KEYS], NULL);
5764 if (IS_ERR(connkeys))
5765 return PTR_ERR(connkeys);
5768 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5769 connect.flags |= ASSOC_REQ_DISABLE_HT;
5771 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5772 memcpy(&connect.ht_capa_mask,
5773 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5774 sizeof(connect.ht_capa_mask));
5776 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5777 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5781 memcpy(&connect.ht_capa,
5782 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5783 sizeof(connect.ht_capa));
5786 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5792 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5795 struct net_device *dev = info->user_ptr[1];
5798 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5799 reason = WLAN_REASON_DEAUTH_LEAVING;
5801 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5806 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5807 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5810 return cfg80211_disconnect(rdev, dev, reason, true);
5813 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5820 if (!info->attrs[NL80211_ATTR_PID])
5823 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5825 net = get_net_ns_by_pid(pid);
5827 return PTR_ERR(net);
5831 /* check if anything to do */
5832 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5833 err = cfg80211_switch_netns(rdev, net);
5839 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5841 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5842 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5843 struct cfg80211_pmksa *pmksa) = NULL;
5844 struct net_device *dev = info->user_ptr[1];
5845 struct cfg80211_pmksa pmksa;
5847 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5849 if (!info->attrs[NL80211_ATTR_MAC])
5852 if (!info->attrs[NL80211_ATTR_PMKID])
5855 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5856 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5858 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5859 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5862 switch (info->genlhdr->cmd) {
5863 case NL80211_CMD_SET_PMKSA:
5864 rdev_ops = rdev->ops->set_pmksa;
5866 case NL80211_CMD_DEL_PMKSA:
5867 rdev_ops = rdev->ops->del_pmksa;
5877 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5880 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5882 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5883 struct net_device *dev = info->user_ptr[1];
5885 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5886 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5889 if (!rdev->ops->flush_pmksa)
5892 return rdev_flush_pmksa(rdev, dev);
5895 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5898 struct net_device *dev = info->user_ptr[1];
5899 u8 action_code, dialog_token;
5903 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5904 !rdev->ops->tdls_mgmt)
5907 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5908 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5909 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5910 !info->attrs[NL80211_ATTR_IE] ||
5911 !info->attrs[NL80211_ATTR_MAC])
5914 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5915 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5916 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5917 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5919 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
5920 dialog_token, status_code,
5921 nla_data(info->attrs[NL80211_ATTR_IE]),
5922 nla_len(info->attrs[NL80211_ATTR_IE]));
5925 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5927 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5928 struct net_device *dev = info->user_ptr[1];
5929 enum nl80211_tdls_operation operation;
5932 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5933 !rdev->ops->tdls_oper)
5936 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5937 !info->attrs[NL80211_ATTR_MAC])
5940 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5941 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5943 return rdev_tdls_oper(rdev, dev, peer, operation);
5946 static int nl80211_remain_on_channel(struct sk_buff *skb,
5947 struct genl_info *info)
5949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5950 struct wireless_dev *wdev = info->user_ptr[1];
5951 struct ieee80211_channel *chan;
5952 struct sk_buff *msg;
5955 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5959 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5960 !info->attrs[NL80211_ATTR_DURATION])
5963 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5965 if (!rdev->ops->remain_on_channel ||
5966 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5970 * We should be on that channel for at least a minimum amount of
5971 * time (10ms) but no longer than the driver supports.
5973 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5974 duration > rdev->wiphy.max_remain_on_channel_duration)
5977 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5978 !nl80211_valid_channel_type(info, &channel_type))
5981 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5982 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5986 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5990 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5991 NL80211_CMD_REMAIN_ON_CHANNEL);
5998 err = rdev_remain_on_channel(rdev, wdev, chan, channel_type, duration,
6004 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6005 goto nla_put_failure;
6007 genlmsg_end(msg, hdr);
6009 return genlmsg_reply(msg, info);
6018 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6019 struct genl_info *info)
6021 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6022 struct wireless_dev *wdev = info->user_ptr[1];
6025 if (!info->attrs[NL80211_ATTR_COOKIE])
6028 if (!rdev->ops->cancel_remain_on_channel)
6031 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6033 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6036 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6037 u8 *rates, u8 rates_len)
6042 for (i = 0; i < rates_len; i++) {
6043 int rate = (rates[i] & 0x7f) * 5;
6045 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6046 struct ieee80211_rate *srate =
6047 &sband->bitrates[ridx];
6048 if (rate == srate->bitrate) {
6053 if (ridx == sband->n_bitrates)
6054 return 0; /* rate not found */
6060 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6061 u8 *rates, u8 rates_len,
6062 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6066 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6068 for (i = 0; i < rates_len; i++) {
6071 ridx = rates[i] / 8;
6072 rbit = BIT(rates[i] % 8);
6074 /* check validity */
6075 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6078 /* check availability */
6079 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6088 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
6089 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6090 .len = NL80211_MAX_SUPP_RATES },
6091 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6092 .len = NL80211_MAX_SUPP_HT_RATES },
6095 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6096 struct genl_info *info)
6098 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
6099 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6100 struct cfg80211_bitrate_mask mask;
6102 struct net_device *dev = info->user_ptr[1];
6103 struct nlattr *tx_rates;
6104 struct ieee80211_supported_band *sband;
6106 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6109 if (!rdev->ops->set_bitrate_mask)
6112 memset(&mask, 0, sizeof(mask));
6113 /* Default to all rates enabled */
6114 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6115 sband = rdev->wiphy.bands[i];
6116 mask.control[i].legacy =
6117 sband ? (1 << sband->n_bitrates) - 1 : 0;
6119 memcpy(mask.control[i].mcs,
6120 sband->ht_cap.mcs.rx_mask,
6121 sizeof(mask.control[i].mcs));
6123 memset(mask.control[i].mcs, 0,
6124 sizeof(mask.control[i].mcs));
6128 * The nested attribute uses enum nl80211_band as the index. This maps
6129 * directly to the enum ieee80211_band values used in cfg80211.
6131 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
6132 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6134 enum ieee80211_band band = nla_type(tx_rates);
6135 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6137 sband = rdev->wiphy.bands[band];
6140 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6141 nla_len(tx_rates), nl80211_txattr_policy);
6142 if (tb[NL80211_TXRATE_LEGACY]) {
6143 mask.control[band].legacy = rateset_to_mask(
6145 nla_data(tb[NL80211_TXRATE_LEGACY]),
6146 nla_len(tb[NL80211_TXRATE_LEGACY]));
6147 if ((mask.control[band].legacy == 0) &&
6148 nla_len(tb[NL80211_TXRATE_LEGACY]))
6151 if (tb[NL80211_TXRATE_MCS]) {
6152 if (!ht_rateset_to_mask(
6154 nla_data(tb[NL80211_TXRATE_MCS]),
6155 nla_len(tb[NL80211_TXRATE_MCS]),
6156 mask.control[band].mcs))
6160 if (mask.control[band].legacy == 0) {
6161 /* don't allow empty legacy rates if HT
6162 * is not even supported. */
6163 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6166 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6167 if (mask.control[band].mcs[i])
6170 /* legacy and mcs rates may not be both empty */
6171 if (i == IEEE80211_HT_MCS_MASK_LEN)
6176 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
6179 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6182 struct wireless_dev *wdev = info->user_ptr[1];
6183 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6185 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6188 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6189 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6191 switch (wdev->iftype) {
6192 case NL80211_IFTYPE_STATION:
6193 case NL80211_IFTYPE_ADHOC:
6194 case NL80211_IFTYPE_P2P_CLIENT:
6195 case NL80211_IFTYPE_AP:
6196 case NL80211_IFTYPE_AP_VLAN:
6197 case NL80211_IFTYPE_MESH_POINT:
6198 case NL80211_IFTYPE_P2P_GO:
6199 case NL80211_IFTYPE_P2P_DEVICE:
6205 /* not much point in registering if we can't reply */
6206 if (!rdev->ops->mgmt_tx)
6209 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
6210 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6211 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6214 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6216 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6217 struct wireless_dev *wdev = info->user_ptr[1];
6218 struct ieee80211_channel *chan;
6219 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6220 bool channel_type_valid = false;
6225 struct sk_buff *msg = NULL;
6226 unsigned int wait = 0;
6227 bool offchan, no_cck, dont_wait_for_ack;
6229 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6231 if (!info->attrs[NL80211_ATTR_FRAME] ||
6232 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6235 if (!rdev->ops->mgmt_tx)
6238 switch (wdev->iftype) {
6239 case NL80211_IFTYPE_STATION:
6240 case NL80211_IFTYPE_ADHOC:
6241 case NL80211_IFTYPE_P2P_CLIENT:
6242 case NL80211_IFTYPE_AP:
6243 case NL80211_IFTYPE_AP_VLAN:
6244 case NL80211_IFTYPE_MESH_POINT:
6245 case NL80211_IFTYPE_P2P_GO:
6246 case NL80211_IFTYPE_P2P_DEVICE:
6252 if (info->attrs[NL80211_ATTR_DURATION]) {
6253 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6255 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6258 * We should wait on the channel for at least a minimum amount
6259 * of time (10ms) but no longer than the driver supports.
6261 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6262 wait > rdev->wiphy.max_remain_on_channel_duration)
6267 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
6268 if (!nl80211_valid_channel_type(info, &channel_type))
6270 channel_type_valid = true;
6273 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6275 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6278 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6280 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6281 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6285 if (!dont_wait_for_ack) {
6286 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6290 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6299 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
6300 channel_type_valid, wait,
6301 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6302 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6303 no_cck, dont_wait_for_ack, &cookie);
6308 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6309 goto nla_put_failure;
6311 genlmsg_end(msg, hdr);
6312 return genlmsg_reply(msg, info);
6324 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6326 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6327 struct wireless_dev *wdev = info->user_ptr[1];
6330 if (!info->attrs[NL80211_ATTR_COOKIE])
6333 if (!rdev->ops->mgmt_tx_cancel_wait)
6336 switch (wdev->iftype) {
6337 case NL80211_IFTYPE_STATION:
6338 case NL80211_IFTYPE_ADHOC:
6339 case NL80211_IFTYPE_P2P_CLIENT:
6340 case NL80211_IFTYPE_AP:
6341 case NL80211_IFTYPE_AP_VLAN:
6342 case NL80211_IFTYPE_P2P_GO:
6343 case NL80211_IFTYPE_P2P_DEVICE:
6349 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6351 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
6354 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6357 struct wireless_dev *wdev;
6358 struct net_device *dev = info->user_ptr[1];
6363 if (!info->attrs[NL80211_ATTR_PS_STATE])
6366 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6368 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6371 wdev = dev->ieee80211_ptr;
6373 if (!rdev->ops->set_power_mgmt)
6376 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6378 if (state == wdev->ps)
6381 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
6387 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6390 enum nl80211_ps_state ps_state;
6391 struct wireless_dev *wdev;
6392 struct net_device *dev = info->user_ptr[1];
6393 struct sk_buff *msg;
6397 wdev = dev->ieee80211_ptr;
6399 if (!rdev->ops->set_power_mgmt)
6402 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6406 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6407 NL80211_CMD_GET_POWER_SAVE);
6414 ps_state = NL80211_PS_ENABLED;
6416 ps_state = NL80211_PS_DISABLED;
6418 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6419 goto nla_put_failure;
6421 genlmsg_end(msg, hdr);
6422 return genlmsg_reply(msg, info);
6431 static struct nla_policy
6432 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6433 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6434 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6435 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6436 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6437 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6438 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6441 static int nl80211_set_cqm_txe(struct genl_info *info,
6442 u32 rate, u32 pkts, u32 intvl)
6444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6445 struct wireless_dev *wdev;
6446 struct net_device *dev = info->user_ptr[1];
6448 if ((rate < 0 || rate > 100) ||
6449 (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
6452 wdev = dev->ieee80211_ptr;
6454 if (!rdev->ops->set_cqm_txe_config)
6457 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6458 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6461 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
6464 static int nl80211_set_cqm_rssi(struct genl_info *info,
6465 s32 threshold, u32 hysteresis)
6467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6468 struct wireless_dev *wdev;
6469 struct net_device *dev = info->user_ptr[1];
6474 wdev = dev->ieee80211_ptr;
6476 if (!rdev->ops->set_cqm_rssi_config)
6479 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6480 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6483 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
6486 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6488 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6492 cqm = info->attrs[NL80211_ATTR_CQM];
6498 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6499 nl80211_attr_cqm_policy);
6503 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6504 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6507 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6508 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6509 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6510 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6511 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6512 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6513 u32 rate, pkts, intvl;
6514 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6515 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6516 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6517 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
6525 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6527 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6528 struct net_device *dev = info->user_ptr[1];
6529 struct mesh_config cfg;
6530 struct mesh_setup setup;
6533 /* start with default */
6534 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6535 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6537 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6538 /* and parse parameters if given */
6539 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6544 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6545 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6548 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6549 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6551 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6552 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6553 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6556 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6557 /* parse additional setup parameters if given */
6558 err = nl80211_parse_mesh_setup(info, &setup);
6563 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6564 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6566 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6567 !nl80211_valid_channel_type(info, &channel_type))
6570 setup.channel = rdev_freq_to_chan(rdev,
6571 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6575 setup.channel_type = channel_type;
6577 /* cfg80211_join_mesh() will sort it out */
6578 setup.channel = NULL;
6581 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6584 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6586 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6587 struct net_device *dev = info->user_ptr[1];
6589 return cfg80211_leave_mesh(rdev, dev);
6593 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6595 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6596 struct sk_buff *msg;
6599 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6606 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6607 NL80211_CMD_GET_WOWLAN);
6609 goto nla_put_failure;
6612 struct nlattr *nl_wowlan;
6614 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6616 goto nla_put_failure;
6618 if ((rdev->wowlan->any &&
6619 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6620 (rdev->wowlan->disconnect &&
6621 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6622 (rdev->wowlan->magic_pkt &&
6623 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6624 (rdev->wowlan->gtk_rekey_failure &&
6625 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6626 (rdev->wowlan->eap_identity_req &&
6627 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6628 (rdev->wowlan->four_way_handshake &&
6629 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6630 (rdev->wowlan->rfkill_release &&
6631 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6632 goto nla_put_failure;
6633 if (rdev->wowlan->n_patterns) {
6634 struct nlattr *nl_pats, *nl_pat;
6637 nl_pats = nla_nest_start(msg,
6638 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6640 goto nla_put_failure;
6642 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6643 nl_pat = nla_nest_start(msg, i + 1);
6645 goto nla_put_failure;
6646 pat_len = rdev->wowlan->patterns[i].pattern_len;
6647 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6648 DIV_ROUND_UP(pat_len, 8),
6649 rdev->wowlan->patterns[i].mask) ||
6650 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6652 rdev->wowlan->patterns[i].pattern))
6653 goto nla_put_failure;
6654 nla_nest_end(msg, nl_pat);
6656 nla_nest_end(msg, nl_pats);
6659 nla_nest_end(msg, nl_wowlan);
6662 genlmsg_end(msg, hdr);
6663 return genlmsg_reply(msg, info);
6670 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6673 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6674 struct cfg80211_wowlan new_triggers = {};
6675 struct cfg80211_wowlan *ntrig;
6676 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6678 bool prev_enabled = rdev->wowlan;
6680 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6683 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6684 cfg80211_rdev_free_wowlan(rdev);
6685 rdev->wowlan = NULL;
6689 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6690 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6691 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6692 nl80211_wowlan_policy);
6696 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6697 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6699 new_triggers.any = true;
6702 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6703 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6705 new_triggers.disconnect = true;
6708 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6709 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6711 new_triggers.magic_pkt = true;
6714 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6717 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6718 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6720 new_triggers.gtk_rekey_failure = true;
6723 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6724 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6726 new_triggers.eap_identity_req = true;
6729 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6730 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6732 new_triggers.four_way_handshake = true;
6735 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6736 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6738 new_triggers.rfkill_release = true;
6741 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6744 int rem, pat_len, mask_len;
6745 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6747 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6750 if (n_patterns > wowlan->n_patterns)
6753 new_triggers.patterns = kcalloc(n_patterns,
6754 sizeof(new_triggers.patterns[0]),
6756 if (!new_triggers.patterns)
6759 new_triggers.n_patterns = n_patterns;
6762 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6764 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6765 nla_data(pat), nla_len(pat), NULL);
6767 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6768 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6770 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6771 mask_len = DIV_ROUND_UP(pat_len, 8);
6772 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6775 if (pat_len > wowlan->pattern_max_len ||
6776 pat_len < wowlan->pattern_min_len)
6779 new_triggers.patterns[i].mask =
6780 kmalloc(mask_len + pat_len, GFP_KERNEL);
6781 if (!new_triggers.patterns[i].mask) {
6785 new_triggers.patterns[i].pattern =
6786 new_triggers.patterns[i].mask + mask_len;
6787 memcpy(new_triggers.patterns[i].mask,
6788 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6790 new_triggers.patterns[i].pattern_len = pat_len;
6791 memcpy(new_triggers.patterns[i].pattern,
6792 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6798 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6803 cfg80211_rdev_free_wowlan(rdev);
6804 rdev->wowlan = ntrig;
6807 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6808 rdev_set_wakeup(rdev, rdev->wowlan);
6812 for (i = 0; i < new_triggers.n_patterns; i++)
6813 kfree(new_triggers.patterns[i].mask);
6814 kfree(new_triggers.patterns);
6819 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6821 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6822 struct net_device *dev = info->user_ptr[1];
6823 struct wireless_dev *wdev = dev->ieee80211_ptr;
6824 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6825 struct cfg80211_gtk_rekey_data rekey_data;
6828 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6831 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6832 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6833 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6834 nl80211_rekey_policy);
6838 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6840 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6842 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6845 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6847 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6849 memcpy(rekey_data.replay_ctr,
6850 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6851 NL80211_REPLAY_CTR_LEN);
6854 if (!wdev->current_bss) {
6859 if (!rdev->ops->set_rekey_data) {
6864 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
6870 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6871 struct genl_info *info)
6873 struct net_device *dev = info->user_ptr[1];
6874 struct wireless_dev *wdev = dev->ieee80211_ptr;
6876 if (wdev->iftype != NL80211_IFTYPE_AP &&
6877 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6880 if (wdev->ap_unexpected_nlportid)
6883 wdev->ap_unexpected_nlportid = info->snd_portid;
6887 static int nl80211_probe_client(struct sk_buff *skb,
6888 struct genl_info *info)
6890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6891 struct net_device *dev = info->user_ptr[1];
6892 struct wireless_dev *wdev = dev->ieee80211_ptr;
6893 struct sk_buff *msg;
6899 if (wdev->iftype != NL80211_IFTYPE_AP &&
6900 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6903 if (!info->attrs[NL80211_ATTR_MAC])
6906 if (!rdev->ops->probe_client)
6909 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6913 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6914 NL80211_CMD_PROBE_CLIENT);
6921 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6923 err = rdev_probe_client(rdev, dev, addr, &cookie);
6927 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6928 goto nla_put_failure;
6930 genlmsg_end(msg, hdr);
6932 return genlmsg_reply(msg, info);
6941 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6943 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6944 struct cfg80211_beacon_registration *reg, *nreg;
6947 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6950 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
6954 /* First, check if already registered. */
6955 spin_lock_bh(&rdev->beacon_registrations_lock);
6956 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
6957 if (reg->nlportid == info->snd_portid) {
6962 /* Add it to the list */
6963 nreg->nlportid = info->snd_portid;
6964 list_add(&nreg->list, &rdev->beacon_registrations);
6966 spin_unlock_bh(&rdev->beacon_registrations_lock);
6970 spin_unlock_bh(&rdev->beacon_registrations_lock);
6975 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
6977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6978 struct wireless_dev *wdev = info->user_ptr[1];
6981 if (!rdev->ops->start_p2p_device)
6984 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
6987 if (wdev->p2p_started)
6990 mutex_lock(&rdev->devlist_mtx);
6991 err = cfg80211_can_add_interface(rdev, wdev->iftype);
6992 mutex_unlock(&rdev->devlist_mtx);
6996 err = rdev_start_p2p_device(rdev, wdev);
7000 wdev->p2p_started = true;
7001 mutex_lock(&rdev->devlist_mtx);
7003 mutex_unlock(&rdev->devlist_mtx);
7008 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7011 struct wireless_dev *wdev = info->user_ptr[1];
7013 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7016 if (!rdev->ops->stop_p2p_device)
7019 if (!wdev->p2p_started)
7022 rdev_stop_p2p_device(rdev, wdev);
7023 wdev->p2p_started = false;
7025 mutex_lock(&rdev->devlist_mtx);
7027 mutex_unlock(&rdev->devlist_mtx);
7029 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7030 rdev->scan_req->aborted = true;
7031 ___cfg80211_scan_done(rdev, true);
7037 #define NL80211_FLAG_NEED_WIPHY 0x01
7038 #define NL80211_FLAG_NEED_NETDEV 0x02
7039 #define NL80211_FLAG_NEED_RTNL 0x04
7040 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7041 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7042 NL80211_FLAG_CHECK_NETDEV_UP)
7043 #define NL80211_FLAG_NEED_WDEV 0x10
7044 /* If a netdev is associated, it must be UP, P2P must be started */
7045 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7046 NL80211_FLAG_CHECK_NETDEV_UP)
7048 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7049 struct genl_info *info)
7051 struct cfg80211_registered_device *rdev;
7052 struct wireless_dev *wdev;
7053 struct net_device *dev;
7054 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7059 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
7060 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
7064 return PTR_ERR(rdev);
7066 info->user_ptr[0] = rdev;
7067 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7068 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7069 mutex_lock(&cfg80211_mutex);
7070 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7073 mutex_unlock(&cfg80211_mutex);
7076 return PTR_ERR(wdev);
7080 rdev = wiphy_to_dev(wdev->wiphy);
7082 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7084 mutex_unlock(&cfg80211_mutex);
7090 info->user_ptr[1] = dev;
7092 info->user_ptr[1] = wdev;
7096 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7097 !netif_running(dev)) {
7098 mutex_unlock(&cfg80211_mutex);
7105 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7106 if (!wdev->p2p_started) {
7107 mutex_unlock(&cfg80211_mutex);
7114 cfg80211_lock_rdev(rdev);
7116 mutex_unlock(&cfg80211_mutex);
7118 info->user_ptr[0] = rdev;
7124 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7125 struct genl_info *info)
7127 if (info->user_ptr[0])
7128 cfg80211_unlock_rdev(info->user_ptr[0]);
7129 if (info->user_ptr[1]) {
7130 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7131 struct wireless_dev *wdev = info->user_ptr[1];
7134 dev_put(wdev->netdev);
7136 dev_put(info->user_ptr[1]);
7139 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7143 static struct genl_ops nl80211_ops[] = {
7145 .cmd = NL80211_CMD_GET_WIPHY,
7146 .doit = nl80211_get_wiphy,
7147 .dumpit = nl80211_dump_wiphy,
7148 .policy = nl80211_policy,
7149 /* can be retrieved by unprivileged users */
7150 .internal_flags = NL80211_FLAG_NEED_WIPHY,
7153 .cmd = NL80211_CMD_SET_WIPHY,
7154 .doit = nl80211_set_wiphy,
7155 .policy = nl80211_policy,
7156 .flags = GENL_ADMIN_PERM,
7157 .internal_flags = NL80211_FLAG_NEED_RTNL,
7160 .cmd = NL80211_CMD_GET_INTERFACE,
7161 .doit = nl80211_get_interface,
7162 .dumpit = nl80211_dump_interface,
7163 .policy = nl80211_policy,
7164 /* can be retrieved by unprivileged users */
7165 .internal_flags = NL80211_FLAG_NEED_WDEV,
7168 .cmd = NL80211_CMD_SET_INTERFACE,
7169 .doit = nl80211_set_interface,
7170 .policy = nl80211_policy,
7171 .flags = GENL_ADMIN_PERM,
7172 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7173 NL80211_FLAG_NEED_RTNL,
7176 .cmd = NL80211_CMD_NEW_INTERFACE,
7177 .doit = nl80211_new_interface,
7178 .policy = nl80211_policy,
7179 .flags = GENL_ADMIN_PERM,
7180 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7181 NL80211_FLAG_NEED_RTNL,
7184 .cmd = NL80211_CMD_DEL_INTERFACE,
7185 .doit = nl80211_del_interface,
7186 .policy = nl80211_policy,
7187 .flags = GENL_ADMIN_PERM,
7188 .internal_flags = NL80211_FLAG_NEED_WDEV |
7189 NL80211_FLAG_NEED_RTNL,
7192 .cmd = NL80211_CMD_GET_KEY,
7193 .doit = nl80211_get_key,
7194 .policy = nl80211_policy,
7195 .flags = GENL_ADMIN_PERM,
7196 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7197 NL80211_FLAG_NEED_RTNL,
7200 .cmd = NL80211_CMD_SET_KEY,
7201 .doit = nl80211_set_key,
7202 .policy = nl80211_policy,
7203 .flags = GENL_ADMIN_PERM,
7204 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7205 NL80211_FLAG_NEED_RTNL,
7208 .cmd = NL80211_CMD_NEW_KEY,
7209 .doit = nl80211_new_key,
7210 .policy = nl80211_policy,
7211 .flags = GENL_ADMIN_PERM,
7212 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7213 NL80211_FLAG_NEED_RTNL,
7216 .cmd = NL80211_CMD_DEL_KEY,
7217 .doit = nl80211_del_key,
7218 .policy = nl80211_policy,
7219 .flags = GENL_ADMIN_PERM,
7220 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7221 NL80211_FLAG_NEED_RTNL,
7224 .cmd = NL80211_CMD_SET_BEACON,
7225 .policy = nl80211_policy,
7226 .flags = GENL_ADMIN_PERM,
7227 .doit = nl80211_set_beacon,
7228 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7229 NL80211_FLAG_NEED_RTNL,
7232 .cmd = NL80211_CMD_START_AP,
7233 .policy = nl80211_policy,
7234 .flags = GENL_ADMIN_PERM,
7235 .doit = nl80211_start_ap,
7236 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7237 NL80211_FLAG_NEED_RTNL,
7240 .cmd = NL80211_CMD_STOP_AP,
7241 .policy = nl80211_policy,
7242 .flags = GENL_ADMIN_PERM,
7243 .doit = nl80211_stop_ap,
7244 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7245 NL80211_FLAG_NEED_RTNL,
7248 .cmd = NL80211_CMD_GET_STATION,
7249 .doit = nl80211_get_station,
7250 .dumpit = nl80211_dump_station,
7251 .policy = nl80211_policy,
7252 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7253 NL80211_FLAG_NEED_RTNL,
7256 .cmd = NL80211_CMD_SET_STATION,
7257 .doit = nl80211_set_station,
7258 .policy = nl80211_policy,
7259 .flags = GENL_ADMIN_PERM,
7260 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7261 NL80211_FLAG_NEED_RTNL,
7264 .cmd = NL80211_CMD_NEW_STATION,
7265 .doit = nl80211_new_station,
7266 .policy = nl80211_policy,
7267 .flags = GENL_ADMIN_PERM,
7268 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7269 NL80211_FLAG_NEED_RTNL,
7272 .cmd = NL80211_CMD_DEL_STATION,
7273 .doit = nl80211_del_station,
7274 .policy = nl80211_policy,
7275 .flags = GENL_ADMIN_PERM,
7276 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7277 NL80211_FLAG_NEED_RTNL,
7280 .cmd = NL80211_CMD_GET_MPATH,
7281 .doit = nl80211_get_mpath,
7282 .dumpit = nl80211_dump_mpath,
7283 .policy = nl80211_policy,
7284 .flags = GENL_ADMIN_PERM,
7285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7286 NL80211_FLAG_NEED_RTNL,
7289 .cmd = NL80211_CMD_SET_MPATH,
7290 .doit = nl80211_set_mpath,
7291 .policy = nl80211_policy,
7292 .flags = GENL_ADMIN_PERM,
7293 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7294 NL80211_FLAG_NEED_RTNL,
7297 .cmd = NL80211_CMD_NEW_MPATH,
7298 .doit = nl80211_new_mpath,
7299 .policy = nl80211_policy,
7300 .flags = GENL_ADMIN_PERM,
7301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7302 NL80211_FLAG_NEED_RTNL,
7305 .cmd = NL80211_CMD_DEL_MPATH,
7306 .doit = nl80211_del_mpath,
7307 .policy = nl80211_policy,
7308 .flags = GENL_ADMIN_PERM,
7309 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7310 NL80211_FLAG_NEED_RTNL,
7313 .cmd = NL80211_CMD_SET_BSS,
7314 .doit = nl80211_set_bss,
7315 .policy = nl80211_policy,
7316 .flags = GENL_ADMIN_PERM,
7317 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7318 NL80211_FLAG_NEED_RTNL,
7321 .cmd = NL80211_CMD_GET_REG,
7322 .doit = nl80211_get_reg,
7323 .policy = nl80211_policy,
7324 /* can be retrieved by unprivileged users */
7327 .cmd = NL80211_CMD_SET_REG,
7328 .doit = nl80211_set_reg,
7329 .policy = nl80211_policy,
7330 .flags = GENL_ADMIN_PERM,
7333 .cmd = NL80211_CMD_REQ_SET_REG,
7334 .doit = nl80211_req_set_reg,
7335 .policy = nl80211_policy,
7336 .flags = GENL_ADMIN_PERM,
7339 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7340 .doit = nl80211_get_mesh_config,
7341 .policy = nl80211_policy,
7342 /* can be retrieved by unprivileged users */
7343 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7344 NL80211_FLAG_NEED_RTNL,
7347 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7348 .doit = nl80211_update_mesh_config,
7349 .policy = nl80211_policy,
7350 .flags = GENL_ADMIN_PERM,
7351 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7352 NL80211_FLAG_NEED_RTNL,
7355 .cmd = NL80211_CMD_TRIGGER_SCAN,
7356 .doit = nl80211_trigger_scan,
7357 .policy = nl80211_policy,
7358 .flags = GENL_ADMIN_PERM,
7359 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7360 NL80211_FLAG_NEED_RTNL,
7363 .cmd = NL80211_CMD_GET_SCAN,
7364 .policy = nl80211_policy,
7365 .dumpit = nl80211_dump_scan,
7368 .cmd = NL80211_CMD_START_SCHED_SCAN,
7369 .doit = nl80211_start_sched_scan,
7370 .policy = nl80211_policy,
7371 .flags = GENL_ADMIN_PERM,
7372 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7373 NL80211_FLAG_NEED_RTNL,
7376 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7377 .doit = nl80211_stop_sched_scan,
7378 .policy = nl80211_policy,
7379 .flags = GENL_ADMIN_PERM,
7380 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7381 NL80211_FLAG_NEED_RTNL,
7384 .cmd = NL80211_CMD_AUTHENTICATE,
7385 .doit = nl80211_authenticate,
7386 .policy = nl80211_policy,
7387 .flags = GENL_ADMIN_PERM,
7388 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7389 NL80211_FLAG_NEED_RTNL,
7392 .cmd = NL80211_CMD_ASSOCIATE,
7393 .doit = nl80211_associate,
7394 .policy = nl80211_policy,
7395 .flags = GENL_ADMIN_PERM,
7396 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7397 NL80211_FLAG_NEED_RTNL,
7400 .cmd = NL80211_CMD_DEAUTHENTICATE,
7401 .doit = nl80211_deauthenticate,
7402 .policy = nl80211_policy,
7403 .flags = GENL_ADMIN_PERM,
7404 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7405 NL80211_FLAG_NEED_RTNL,
7408 .cmd = NL80211_CMD_DISASSOCIATE,
7409 .doit = nl80211_disassociate,
7410 .policy = nl80211_policy,
7411 .flags = GENL_ADMIN_PERM,
7412 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7413 NL80211_FLAG_NEED_RTNL,
7416 .cmd = NL80211_CMD_JOIN_IBSS,
7417 .doit = nl80211_join_ibss,
7418 .policy = nl80211_policy,
7419 .flags = GENL_ADMIN_PERM,
7420 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7421 NL80211_FLAG_NEED_RTNL,
7424 .cmd = NL80211_CMD_LEAVE_IBSS,
7425 .doit = nl80211_leave_ibss,
7426 .policy = nl80211_policy,
7427 .flags = GENL_ADMIN_PERM,
7428 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7429 NL80211_FLAG_NEED_RTNL,
7431 #ifdef CONFIG_NL80211_TESTMODE
7433 .cmd = NL80211_CMD_TESTMODE,
7434 .doit = nl80211_testmode_do,
7435 .dumpit = nl80211_testmode_dump,
7436 .policy = nl80211_policy,
7437 .flags = GENL_ADMIN_PERM,
7438 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7439 NL80211_FLAG_NEED_RTNL,
7443 .cmd = NL80211_CMD_CONNECT,
7444 .doit = nl80211_connect,
7445 .policy = nl80211_policy,
7446 .flags = GENL_ADMIN_PERM,
7447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7448 NL80211_FLAG_NEED_RTNL,
7451 .cmd = NL80211_CMD_DISCONNECT,
7452 .doit = nl80211_disconnect,
7453 .policy = nl80211_policy,
7454 .flags = GENL_ADMIN_PERM,
7455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7456 NL80211_FLAG_NEED_RTNL,
7459 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7460 .doit = nl80211_wiphy_netns,
7461 .policy = nl80211_policy,
7462 .flags = GENL_ADMIN_PERM,
7463 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7464 NL80211_FLAG_NEED_RTNL,
7467 .cmd = NL80211_CMD_GET_SURVEY,
7468 .policy = nl80211_policy,
7469 .dumpit = nl80211_dump_survey,
7472 .cmd = NL80211_CMD_SET_PMKSA,
7473 .doit = nl80211_setdel_pmksa,
7474 .policy = nl80211_policy,
7475 .flags = GENL_ADMIN_PERM,
7476 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7477 NL80211_FLAG_NEED_RTNL,
7480 .cmd = NL80211_CMD_DEL_PMKSA,
7481 .doit = nl80211_setdel_pmksa,
7482 .policy = nl80211_policy,
7483 .flags = GENL_ADMIN_PERM,
7484 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7485 NL80211_FLAG_NEED_RTNL,
7488 .cmd = NL80211_CMD_FLUSH_PMKSA,
7489 .doit = nl80211_flush_pmksa,
7490 .policy = nl80211_policy,
7491 .flags = GENL_ADMIN_PERM,
7492 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7493 NL80211_FLAG_NEED_RTNL,
7496 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7497 .doit = nl80211_remain_on_channel,
7498 .policy = nl80211_policy,
7499 .flags = GENL_ADMIN_PERM,
7500 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7501 NL80211_FLAG_NEED_RTNL,
7504 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7505 .doit = nl80211_cancel_remain_on_channel,
7506 .policy = nl80211_policy,
7507 .flags = GENL_ADMIN_PERM,
7508 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7509 NL80211_FLAG_NEED_RTNL,
7512 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7513 .doit = nl80211_set_tx_bitrate_mask,
7514 .policy = nl80211_policy,
7515 .flags = GENL_ADMIN_PERM,
7516 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7517 NL80211_FLAG_NEED_RTNL,
7520 .cmd = NL80211_CMD_REGISTER_FRAME,
7521 .doit = nl80211_register_mgmt,
7522 .policy = nl80211_policy,
7523 .flags = GENL_ADMIN_PERM,
7524 .internal_flags = NL80211_FLAG_NEED_WDEV |
7525 NL80211_FLAG_NEED_RTNL,
7528 .cmd = NL80211_CMD_FRAME,
7529 .doit = nl80211_tx_mgmt,
7530 .policy = nl80211_policy,
7531 .flags = GENL_ADMIN_PERM,
7532 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7533 NL80211_FLAG_NEED_RTNL,
7536 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7537 .doit = nl80211_tx_mgmt_cancel_wait,
7538 .policy = nl80211_policy,
7539 .flags = GENL_ADMIN_PERM,
7540 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7541 NL80211_FLAG_NEED_RTNL,
7544 .cmd = NL80211_CMD_SET_POWER_SAVE,
7545 .doit = nl80211_set_power_save,
7546 .policy = nl80211_policy,
7547 .flags = GENL_ADMIN_PERM,
7548 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7549 NL80211_FLAG_NEED_RTNL,
7552 .cmd = NL80211_CMD_GET_POWER_SAVE,
7553 .doit = nl80211_get_power_save,
7554 .policy = nl80211_policy,
7555 /* can be retrieved by unprivileged users */
7556 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7557 NL80211_FLAG_NEED_RTNL,
7560 .cmd = NL80211_CMD_SET_CQM,
7561 .doit = nl80211_set_cqm,
7562 .policy = nl80211_policy,
7563 .flags = GENL_ADMIN_PERM,
7564 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7565 NL80211_FLAG_NEED_RTNL,
7568 .cmd = NL80211_CMD_SET_CHANNEL,
7569 .doit = nl80211_set_channel,
7570 .policy = nl80211_policy,
7571 .flags = GENL_ADMIN_PERM,
7572 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7573 NL80211_FLAG_NEED_RTNL,
7576 .cmd = NL80211_CMD_SET_WDS_PEER,
7577 .doit = nl80211_set_wds_peer,
7578 .policy = nl80211_policy,
7579 .flags = GENL_ADMIN_PERM,
7580 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7581 NL80211_FLAG_NEED_RTNL,
7584 .cmd = NL80211_CMD_JOIN_MESH,
7585 .doit = nl80211_join_mesh,
7586 .policy = nl80211_policy,
7587 .flags = GENL_ADMIN_PERM,
7588 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7589 NL80211_FLAG_NEED_RTNL,
7592 .cmd = NL80211_CMD_LEAVE_MESH,
7593 .doit = nl80211_leave_mesh,
7594 .policy = nl80211_policy,
7595 .flags = GENL_ADMIN_PERM,
7596 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7597 NL80211_FLAG_NEED_RTNL,
7601 .cmd = NL80211_CMD_GET_WOWLAN,
7602 .doit = nl80211_get_wowlan,
7603 .policy = nl80211_policy,
7604 /* can be retrieved by unprivileged users */
7605 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7606 NL80211_FLAG_NEED_RTNL,
7609 .cmd = NL80211_CMD_SET_WOWLAN,
7610 .doit = nl80211_set_wowlan,
7611 .policy = nl80211_policy,
7612 .flags = GENL_ADMIN_PERM,
7613 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7614 NL80211_FLAG_NEED_RTNL,
7618 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7619 .doit = nl80211_set_rekey_data,
7620 .policy = nl80211_policy,
7621 .flags = GENL_ADMIN_PERM,
7622 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7623 NL80211_FLAG_NEED_RTNL,
7626 .cmd = NL80211_CMD_TDLS_MGMT,
7627 .doit = nl80211_tdls_mgmt,
7628 .policy = nl80211_policy,
7629 .flags = GENL_ADMIN_PERM,
7630 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7631 NL80211_FLAG_NEED_RTNL,
7634 .cmd = NL80211_CMD_TDLS_OPER,
7635 .doit = nl80211_tdls_oper,
7636 .policy = nl80211_policy,
7637 .flags = GENL_ADMIN_PERM,
7638 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7639 NL80211_FLAG_NEED_RTNL,
7642 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7643 .doit = nl80211_register_unexpected_frame,
7644 .policy = nl80211_policy,
7645 .flags = GENL_ADMIN_PERM,
7646 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7647 NL80211_FLAG_NEED_RTNL,
7650 .cmd = NL80211_CMD_PROBE_CLIENT,
7651 .doit = nl80211_probe_client,
7652 .policy = nl80211_policy,
7653 .flags = GENL_ADMIN_PERM,
7654 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7655 NL80211_FLAG_NEED_RTNL,
7658 .cmd = NL80211_CMD_REGISTER_BEACONS,
7659 .doit = nl80211_register_beacons,
7660 .policy = nl80211_policy,
7661 .flags = GENL_ADMIN_PERM,
7662 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7663 NL80211_FLAG_NEED_RTNL,
7666 .cmd = NL80211_CMD_SET_NOACK_MAP,
7667 .doit = nl80211_set_noack_map,
7668 .policy = nl80211_policy,
7669 .flags = GENL_ADMIN_PERM,
7670 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7671 NL80211_FLAG_NEED_RTNL,
7674 .cmd = NL80211_CMD_START_P2P_DEVICE,
7675 .doit = nl80211_start_p2p_device,
7676 .policy = nl80211_policy,
7677 .flags = GENL_ADMIN_PERM,
7678 .internal_flags = NL80211_FLAG_NEED_WDEV |
7679 NL80211_FLAG_NEED_RTNL,
7682 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7683 .doit = nl80211_stop_p2p_device,
7684 .policy = nl80211_policy,
7685 .flags = GENL_ADMIN_PERM,
7686 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7687 NL80211_FLAG_NEED_RTNL,
7690 .cmd = NL80211_CMD_SET_MCAST_RATE,
7691 .doit = nl80211_set_mcast_rate,
7692 .policy = nl80211_policy,
7693 .flags = GENL_ADMIN_PERM,
7694 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7695 NL80211_FLAG_NEED_RTNL,
7699 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7703 /* multicast groups */
7704 static struct genl_multicast_group nl80211_config_mcgrp = {
7707 static struct genl_multicast_group nl80211_scan_mcgrp = {
7710 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7711 .name = "regulatory",
7714 /* notification functions */
7716 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7718 struct sk_buff *msg;
7720 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7724 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7729 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7730 nl80211_config_mcgrp.id, GFP_KERNEL);
7733 static int nl80211_add_scan_req(struct sk_buff *msg,
7734 struct cfg80211_registered_device *rdev)
7736 struct cfg80211_scan_request *req = rdev->scan_req;
7737 struct nlattr *nest;
7740 ASSERT_RDEV_LOCK(rdev);
7745 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7747 goto nla_put_failure;
7748 for (i = 0; i < req->n_ssids; i++) {
7749 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7750 goto nla_put_failure;
7752 nla_nest_end(msg, nest);
7754 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7756 goto nla_put_failure;
7757 for (i = 0; i < req->n_channels; i++) {
7758 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7759 goto nla_put_failure;
7761 nla_nest_end(msg, nest);
7764 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7765 goto nla_put_failure;
7768 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7775 static int nl80211_send_scan_msg(struct sk_buff *msg,
7776 struct cfg80211_registered_device *rdev,
7777 struct wireless_dev *wdev,
7778 u32 portid, u32 seq, int flags,
7783 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
7787 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7788 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7789 wdev->netdev->ifindex)) ||
7790 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
7791 goto nla_put_failure;
7793 /* ignore errors and send incomplete event anyway */
7794 nl80211_add_scan_req(msg, rdev);
7796 return genlmsg_end(msg, hdr);
7799 genlmsg_cancel(msg, hdr);
7804 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7805 struct cfg80211_registered_device *rdev,
7806 struct net_device *netdev,
7807 u32 portid, u32 seq, int flags, u32 cmd)
7811 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
7815 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7816 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7817 goto nla_put_failure;
7819 return genlmsg_end(msg, hdr);
7822 genlmsg_cancel(msg, hdr);
7826 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7827 struct wireless_dev *wdev)
7829 struct sk_buff *msg;
7831 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7835 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7836 NL80211_CMD_TRIGGER_SCAN) < 0) {
7841 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7842 nl80211_scan_mcgrp.id, GFP_KERNEL);
7845 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7846 struct wireless_dev *wdev)
7848 struct sk_buff *msg;
7850 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7854 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7855 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7860 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7861 nl80211_scan_mcgrp.id, GFP_KERNEL);
7864 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7865 struct wireless_dev *wdev)
7867 struct sk_buff *msg;
7869 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7873 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7874 NL80211_CMD_SCAN_ABORTED) < 0) {
7879 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7880 nl80211_scan_mcgrp.id, GFP_KERNEL);
7883 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7884 struct net_device *netdev)
7886 struct sk_buff *msg;
7888 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7892 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7893 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7898 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7899 nl80211_scan_mcgrp.id, GFP_KERNEL);
7902 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7903 struct net_device *netdev, u32 cmd)
7905 struct sk_buff *msg;
7907 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7911 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7916 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7917 nl80211_scan_mcgrp.id, GFP_KERNEL);
7921 * This can happen on global regulatory changes or device specific settings
7922 * based on custom world regulatory domains.
7924 void nl80211_send_reg_change_event(struct regulatory_request *request)
7926 struct sk_buff *msg;
7929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7933 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7939 /* Userspace can always count this one always being set */
7940 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7941 goto nla_put_failure;
7943 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7944 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7945 NL80211_REGDOM_TYPE_WORLD))
7946 goto nla_put_failure;
7947 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7948 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7949 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7950 goto nla_put_failure;
7951 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7952 request->intersect) {
7953 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7954 NL80211_REGDOM_TYPE_INTERSECTION))
7955 goto nla_put_failure;
7957 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7958 NL80211_REGDOM_TYPE_COUNTRY) ||
7959 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7961 goto nla_put_failure;
7964 if (wiphy_idx_valid(request->wiphy_idx) &&
7965 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7966 goto nla_put_failure;
7968 genlmsg_end(msg, hdr);
7971 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7978 genlmsg_cancel(msg, hdr);
7982 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7983 struct net_device *netdev,
7984 const u8 *buf, size_t len,
7985 enum nl80211_commands cmd, gfp_t gfp)
7987 struct sk_buff *msg;
7990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7994 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8000 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8001 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8002 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8003 goto nla_put_failure;
8005 genlmsg_end(msg, hdr);
8007 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8008 nl80211_mlme_mcgrp.id, gfp);
8012 genlmsg_cancel(msg, hdr);
8016 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
8017 struct net_device *netdev, const u8 *buf,
8018 size_t len, gfp_t gfp)
8020 nl80211_send_mlme_event(rdev, netdev, buf, len,
8021 NL80211_CMD_AUTHENTICATE, gfp);
8024 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8025 struct net_device *netdev, const u8 *buf,
8026 size_t len, gfp_t gfp)
8028 nl80211_send_mlme_event(rdev, netdev, buf, len,
8029 NL80211_CMD_ASSOCIATE, gfp);
8032 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
8033 struct net_device *netdev, const u8 *buf,
8034 size_t len, gfp_t gfp)
8036 nl80211_send_mlme_event(rdev, netdev, buf, len,
8037 NL80211_CMD_DEAUTHENTICATE, gfp);
8040 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8041 struct net_device *netdev, const u8 *buf,
8042 size_t len, gfp_t gfp)
8044 nl80211_send_mlme_event(rdev, netdev, buf, len,
8045 NL80211_CMD_DISASSOCIATE, gfp);
8048 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8049 struct net_device *netdev, const u8 *buf,
8050 size_t len, gfp_t gfp)
8052 nl80211_send_mlme_event(rdev, netdev, buf, len,
8053 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8056 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8057 struct net_device *netdev, const u8 *buf,
8058 size_t len, gfp_t gfp)
8060 nl80211_send_mlme_event(rdev, netdev, buf, len,
8061 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8064 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8065 struct net_device *netdev, int cmd,
8066 const u8 *addr, gfp_t gfp)
8068 struct sk_buff *msg;
8071 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8075 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8081 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8082 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8083 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8084 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8085 goto nla_put_failure;
8087 genlmsg_end(msg, hdr);
8089 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8090 nl80211_mlme_mcgrp.id, gfp);
8094 genlmsg_cancel(msg, hdr);
8098 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
8099 struct net_device *netdev, const u8 *addr,
8102 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
8106 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
8107 struct net_device *netdev, const u8 *addr,
8110 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8114 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8115 struct net_device *netdev, const u8 *bssid,
8116 const u8 *req_ie, size_t req_ie_len,
8117 const u8 *resp_ie, size_t resp_ie_len,
8118 u16 status, gfp_t gfp)
8120 struct sk_buff *msg;
8123 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8127 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8133 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8134 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8135 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8136 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8138 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8140 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8141 goto nla_put_failure;
8143 genlmsg_end(msg, hdr);
8145 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8146 nl80211_mlme_mcgrp.id, gfp);
8150 genlmsg_cancel(msg, hdr);
8155 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8156 struct net_device *netdev, const u8 *bssid,
8157 const u8 *req_ie, size_t req_ie_len,
8158 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8160 struct sk_buff *msg;
8163 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8167 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8173 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8174 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8175 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8177 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8179 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8180 goto nla_put_failure;
8182 genlmsg_end(msg, hdr);
8184 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8185 nl80211_mlme_mcgrp.id, gfp);
8189 genlmsg_cancel(msg, hdr);
8194 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8195 struct net_device *netdev, u16 reason,
8196 const u8 *ie, size_t ie_len, bool from_ap)
8198 struct sk_buff *msg;
8201 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8205 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8211 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8212 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8213 (from_ap && reason &&
8214 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8216 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8217 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8218 goto nla_put_failure;
8220 genlmsg_end(msg, hdr);
8222 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8223 nl80211_mlme_mcgrp.id, GFP_KERNEL);
8227 genlmsg_cancel(msg, hdr);
8232 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8233 struct net_device *netdev, const u8 *bssid,
8236 struct sk_buff *msg;
8239 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8243 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8249 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8250 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8251 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8252 goto nla_put_failure;
8254 genlmsg_end(msg, hdr);
8256 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8257 nl80211_mlme_mcgrp.id, gfp);
8261 genlmsg_cancel(msg, hdr);
8265 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8266 struct net_device *netdev,
8267 const u8 *macaddr, const u8* ie, u8 ie_len,
8270 struct sk_buff *msg;
8273 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8277 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8283 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8284 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8285 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8287 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8288 goto nla_put_failure;
8290 genlmsg_end(msg, hdr);
8292 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8293 nl80211_mlme_mcgrp.id, gfp);
8297 genlmsg_cancel(msg, hdr);
8301 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8302 struct net_device *netdev, const u8 *addr,
8303 enum nl80211_key_type key_type, int key_id,
8304 const u8 *tsc, gfp_t gfp)
8306 struct sk_buff *msg;
8309 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8313 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8319 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8320 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8321 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8322 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8324 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8325 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8326 goto nla_put_failure;
8328 genlmsg_end(msg, hdr);
8330 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8331 nl80211_mlme_mcgrp.id, gfp);
8335 genlmsg_cancel(msg, hdr);
8339 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8340 struct ieee80211_channel *channel_before,
8341 struct ieee80211_channel *channel_after)
8343 struct sk_buff *msg;
8345 struct nlattr *nl_freq;
8347 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
8351 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8358 * Since we are applying the beacon hint to a wiphy we know its
8359 * wiphy_idx is valid
8361 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8362 goto nla_put_failure;
8365 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8367 goto nla_put_failure;
8368 if (nl80211_msg_put_channel(msg, channel_before))
8369 goto nla_put_failure;
8370 nla_nest_end(msg, nl_freq);
8373 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8375 goto nla_put_failure;
8376 if (nl80211_msg_put_channel(msg, channel_after))
8377 goto nla_put_failure;
8378 nla_nest_end(msg, nl_freq);
8380 genlmsg_end(msg, hdr);
8383 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8390 genlmsg_cancel(msg, hdr);
8394 static void nl80211_send_remain_on_chan_event(
8395 int cmd, struct cfg80211_registered_device *rdev,
8396 struct wireless_dev *wdev, u64 cookie,
8397 struct ieee80211_channel *chan,
8398 enum nl80211_channel_type channel_type,
8399 unsigned int duration, gfp_t gfp)
8401 struct sk_buff *msg;
8404 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8408 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8414 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8415 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8416 wdev->netdev->ifindex)) ||
8417 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
8418 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8419 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8420 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8421 goto nla_put_failure;
8423 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8424 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8425 goto nla_put_failure;
8427 genlmsg_end(msg, hdr);
8429 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8430 nl80211_mlme_mcgrp.id, gfp);
8434 genlmsg_cancel(msg, hdr);
8438 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8439 struct wireless_dev *wdev, u64 cookie,
8440 struct ieee80211_channel *chan,
8441 enum nl80211_channel_type channel_type,
8442 unsigned int duration, gfp_t gfp)
8444 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8445 rdev, wdev, cookie, chan,
8446 channel_type, duration, gfp);
8449 void nl80211_send_remain_on_channel_cancel(
8450 struct cfg80211_registered_device *rdev,
8451 struct wireless_dev *wdev,
8452 u64 cookie, struct ieee80211_channel *chan,
8453 enum nl80211_channel_type channel_type, gfp_t gfp)
8455 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8456 rdev, wdev, cookie, chan,
8457 channel_type, 0, gfp);
8460 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8461 struct net_device *dev, const u8 *mac_addr,
8462 struct station_info *sinfo, gfp_t gfp)
8464 struct sk_buff *msg;
8466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8470 if (nl80211_send_station(msg, 0, 0, 0,
8471 rdev, dev, mac_addr, sinfo) < 0) {
8476 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8477 nl80211_mlme_mcgrp.id, gfp);
8480 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8481 struct net_device *dev, const u8 *mac_addr,
8484 struct sk_buff *msg;
8487 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8491 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8497 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8498 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8499 goto nla_put_failure;
8501 genlmsg_end(msg, hdr);
8503 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8504 nl80211_mlme_mcgrp.id, gfp);
8508 genlmsg_cancel(msg, hdr);
8512 void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8513 struct net_device *dev, const u8 *mac_addr,
8514 enum nl80211_connect_failed_reason reason,
8517 struct sk_buff *msg;
8520 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8524 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8530 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8531 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8532 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8533 goto nla_put_failure;
8535 genlmsg_end(msg, hdr);
8537 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8538 nl80211_mlme_mcgrp.id, gfp);
8542 genlmsg_cancel(msg, hdr);
8546 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8547 const u8 *addr, gfp_t gfp)
8549 struct wireless_dev *wdev = dev->ieee80211_ptr;
8550 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8551 struct sk_buff *msg;
8554 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
8559 msg = nlmsg_new(100, gfp);
8563 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8569 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8570 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8571 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8572 goto nla_put_failure;
8574 err = genlmsg_end(msg, hdr);
8580 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8584 genlmsg_cancel(msg, hdr);
8589 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8591 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8595 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8596 const u8 *addr, gfp_t gfp)
8598 return __nl80211_unexpected_frame(dev,
8599 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8603 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8604 struct wireless_dev *wdev, u32 nlportid,
8605 int freq, int sig_dbm,
8606 const u8 *buf, size_t len, gfp_t gfp)
8608 struct net_device *netdev = wdev->netdev;
8609 struct sk_buff *msg;
8612 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8616 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8622 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8623 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8624 netdev->ifindex)) ||
8625 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8627 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8628 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8629 goto nla_put_failure;
8631 genlmsg_end(msg, hdr);
8633 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8636 genlmsg_cancel(msg, hdr);
8641 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8642 struct wireless_dev *wdev, u64 cookie,
8643 const u8 *buf, size_t len, bool ack,
8646 struct net_device *netdev = wdev->netdev;
8647 struct sk_buff *msg;
8650 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8654 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8660 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8661 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8662 netdev->ifindex)) ||
8663 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8664 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8665 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8666 goto nla_put_failure;
8668 genlmsg_end(msg, hdr);
8670 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8674 genlmsg_cancel(msg, hdr);
8679 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8680 struct net_device *netdev,
8681 enum nl80211_cqm_rssi_threshold_event rssi_event,
8684 struct sk_buff *msg;
8685 struct nlattr *pinfoattr;
8688 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8692 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8698 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8699 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8700 goto nla_put_failure;
8702 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8704 goto nla_put_failure;
8706 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8708 goto nla_put_failure;
8710 nla_nest_end(msg, pinfoattr);
8712 genlmsg_end(msg, hdr);
8714 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8715 nl80211_mlme_mcgrp.id, gfp);
8719 genlmsg_cancel(msg, hdr);
8723 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8724 struct net_device *netdev, const u8 *bssid,
8725 const u8 *replay_ctr, gfp_t gfp)
8727 struct sk_buff *msg;
8728 struct nlattr *rekey_attr;
8731 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8735 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8741 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8742 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8743 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8744 goto nla_put_failure;
8746 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8748 goto nla_put_failure;
8750 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8751 NL80211_REPLAY_CTR_LEN, replay_ctr))
8752 goto nla_put_failure;
8754 nla_nest_end(msg, rekey_attr);
8756 genlmsg_end(msg, hdr);
8758 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8759 nl80211_mlme_mcgrp.id, gfp);
8763 genlmsg_cancel(msg, hdr);
8767 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8768 struct net_device *netdev, int index,
8769 const u8 *bssid, bool preauth, gfp_t gfp)
8771 struct sk_buff *msg;
8772 struct nlattr *attr;
8775 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8779 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8785 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8786 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8787 goto nla_put_failure;
8789 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8791 goto nla_put_failure;
8793 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8794 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8796 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8797 goto nla_put_failure;
8799 nla_nest_end(msg, attr);
8801 genlmsg_end(msg, hdr);
8803 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8804 nl80211_mlme_mcgrp.id, gfp);
8808 genlmsg_cancel(msg, hdr);
8812 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8813 struct net_device *netdev, int freq,
8814 enum nl80211_channel_type type, gfp_t gfp)
8816 struct sk_buff *msg;
8819 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8823 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8829 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8830 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8831 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8832 goto nla_put_failure;
8834 genlmsg_end(msg, hdr);
8836 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8837 nl80211_mlme_mcgrp.id, gfp);
8841 genlmsg_cancel(msg, hdr);
8846 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8847 struct net_device *netdev, const u8 *peer,
8848 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8850 struct sk_buff *msg;
8851 struct nlattr *pinfoattr;
8854 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8858 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8864 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8865 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8866 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8867 goto nla_put_failure;
8869 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8871 goto nla_put_failure;
8873 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8874 goto nla_put_failure;
8876 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8877 goto nla_put_failure;
8879 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8880 goto nla_put_failure;
8882 nla_nest_end(msg, pinfoattr);
8884 genlmsg_end(msg, hdr);
8886 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8887 nl80211_mlme_mcgrp.id, gfp);
8891 genlmsg_cancel(msg, hdr);
8896 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8897 struct net_device *netdev, const u8 *peer,
8898 u32 num_packets, gfp_t gfp)
8900 struct sk_buff *msg;
8901 struct nlattr *pinfoattr;
8904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8908 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8914 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8915 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8916 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8917 goto nla_put_failure;
8919 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8921 goto nla_put_failure;
8923 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8924 goto nla_put_failure;
8926 nla_nest_end(msg, pinfoattr);
8928 genlmsg_end(msg, hdr);
8930 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8931 nl80211_mlme_mcgrp.id, gfp);
8935 genlmsg_cancel(msg, hdr);
8939 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8940 u64 cookie, bool acked, gfp_t gfp)
8942 struct wireless_dev *wdev = dev->ieee80211_ptr;
8943 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8944 struct sk_buff *msg;
8948 trace_cfg80211_probe_status(dev, addr, cookie, acked);
8950 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8955 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8961 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8962 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8963 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8964 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8965 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8966 goto nla_put_failure;
8968 err = genlmsg_end(msg, hdr);
8974 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8975 nl80211_mlme_mcgrp.id, gfp);
8979 genlmsg_cancel(msg, hdr);
8982 EXPORT_SYMBOL(cfg80211_probe_status);
8984 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8985 const u8 *frame, size_t len,
8986 int freq, int sig_dbm)
8988 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8989 struct sk_buff *msg;
8991 struct cfg80211_beacon_registration *reg;
8993 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
8995 spin_lock_bh(&rdev->beacon_registrations_lock);
8996 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8997 msg = nlmsg_new(len + 100, GFP_ATOMIC);
8999 spin_unlock_bh(&rdev->beacon_registrations_lock);
9003 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9005 goto nla_put_failure;
9007 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9009 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9011 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9012 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9013 goto nla_put_failure;
9015 genlmsg_end(msg, hdr);
9017 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9019 spin_unlock_bh(&rdev->beacon_registrations_lock);
9023 spin_unlock_bh(&rdev->beacon_registrations_lock);
9025 genlmsg_cancel(msg, hdr);
9028 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9030 static int nl80211_netlink_notify(struct notifier_block * nb,
9031 unsigned long state,
9034 struct netlink_notify *notify = _notify;
9035 struct cfg80211_registered_device *rdev;
9036 struct wireless_dev *wdev;
9037 struct cfg80211_beacon_registration *reg, *tmp;
9039 if (state != NETLINK_URELEASE)
9044 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
9045 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
9046 cfg80211_mlme_unregister_socket(wdev, notify->portid);
9048 spin_lock_bh(&rdev->beacon_registrations_lock);
9049 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9051 if (reg->nlportid == notify->portid) {
9052 list_del(®->list);
9057 spin_unlock_bh(&rdev->beacon_registrations_lock);
9065 static struct notifier_block nl80211_netlink_notifier = {
9066 .notifier_call = nl80211_netlink_notify,
9069 /* initialisation/exit functions */
9071 int nl80211_init(void)
9075 err = genl_register_family_with_ops(&nl80211_fam,
9076 nl80211_ops, ARRAY_SIZE(nl80211_ops));
9080 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9084 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9088 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9092 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9096 #ifdef CONFIG_NL80211_TESTMODE
9097 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9102 err = netlink_register_notifier(&nl80211_netlink_notifier);
9108 genl_unregister_family(&nl80211_fam);
9112 void nl80211_exit(void)
9114 netlink_unregister_notifier(&nl80211_netlink_notifier);
9115 genl_unregister_family(&nl80211_fam);