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 },
227 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
229 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
230 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
233 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
234 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
236 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
237 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
239 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
240 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
243 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
244 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
246 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
247 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
248 .len = WLAN_MAX_KEY_LEN },
249 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
250 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
251 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
252 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
253 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
255 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
256 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
257 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
258 .len = IEEE80211_MAX_DATA_LEN },
259 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
260 .len = IEEE80211_MAX_DATA_LEN },
261 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
262 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
263 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
264 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
265 .len = NL80211_MAX_SUPP_RATES },
266 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
267 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
268 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
269 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
270 .len = IEEE80211_MAX_MESH_ID_LEN },
271 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
273 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
274 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
276 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
277 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
279 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
280 .len = NL80211_MAX_SUPP_RATES },
281 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
283 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
286 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
288 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
289 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
290 .len = IEEE80211_MAX_DATA_LEN },
291 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
292 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
294 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
295 .len = IEEE80211_MAX_SSID_LEN },
296 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
297 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
298 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
299 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
300 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
301 [NL80211_ATTR_STA_FLAGS2] = {
302 .len = sizeof(struct nl80211_sta_flag_update),
304 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
305 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
306 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
307 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
308 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
309 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
310 [NL80211_ATTR_PID] = { .type = NLA_U32 },
311 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
312 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
313 .len = WLAN_PMKID_LEN },
314 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
315 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
316 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
317 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
318 .len = IEEE80211_MAX_DATA_LEN },
319 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
320 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
321 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
322 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
323 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
324 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
325 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
326 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
327 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
328 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
329 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
330 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
331 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
332 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
333 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
334 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
335 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
336 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
337 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
338 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
339 .len = IEEE80211_MAX_DATA_LEN },
340 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
341 .len = IEEE80211_MAX_DATA_LEN },
342 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
343 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
344 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
345 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
346 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
350 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
351 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
352 .len = IEEE80211_MAX_DATA_LEN },
353 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
354 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
355 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
356 .len = NL80211_HT_CAPABILITY_LEN
358 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
359 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
360 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
361 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
362 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
363 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
364 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
365 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
366 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
367 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
370 /* policy for the key attributes */
371 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
372 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
373 [NL80211_KEY_IDX] = { .type = NLA_U8 },
374 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
375 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
376 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
377 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
378 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
379 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
382 /* policy for the key default flags */
383 static const struct nla_policy
384 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
385 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
386 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
389 /* policy for WoWLAN attributes */
390 static const struct nla_policy
391 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
392 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
393 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
394 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
395 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
396 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
397 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
398 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
399 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
402 /* policy for GTK rekey offload attributes */
403 static const struct nla_policy
404 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
405 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
406 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
407 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
410 static const struct nla_policy
411 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
412 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
413 .len = IEEE80211_MAX_SSID_LEN },
414 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
417 /* ifidx get helper */
418 static int nl80211_get_ifidx(struct netlink_callback *cb)
422 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
423 nl80211_fam.attrbuf, nl80211_fam.maxattr,
428 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
431 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
437 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
438 struct netlink_callback *cb,
439 struct cfg80211_registered_device **rdev,
440 struct net_device **dev)
442 int ifidx = cb->args[0];
446 ifidx = nl80211_get_ifidx(cb);
454 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
460 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
462 err = PTR_ERR(*rdev);
472 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
474 cfg80211_unlock_rdev(rdev);
479 static bool is_valid_ie_attr(const struct nlattr *attr)
487 pos = nla_data(attr);
508 /* message building helper */
509 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
512 /* since there is no private header just add the generic one */
513 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
516 static int nl80211_msg_put_channel(struct sk_buff *msg,
517 struct ieee80211_channel *chan)
519 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
521 goto nla_put_failure;
523 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
524 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
525 goto nla_put_failure;
526 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
527 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
528 goto nla_put_failure;
529 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
530 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
531 goto nla_put_failure;
532 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
533 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
534 goto nla_put_failure;
536 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
537 DBM_TO_MBM(chan->max_power)))
538 goto nla_put_failure;
546 /* netlink command implementations */
553 bool def_uni, def_multi;
556 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
558 struct nlattr *tb[NL80211_KEY_MAX + 1];
559 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
564 k->def = !!tb[NL80211_KEY_DEFAULT];
565 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
574 if (tb[NL80211_KEY_IDX])
575 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
577 if (tb[NL80211_KEY_DATA]) {
578 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
579 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
582 if (tb[NL80211_KEY_SEQ]) {
583 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
584 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
587 if (tb[NL80211_KEY_CIPHER])
588 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
590 if (tb[NL80211_KEY_TYPE]) {
591 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
592 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
596 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
597 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
598 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
599 tb[NL80211_KEY_DEFAULT_TYPES],
600 nl80211_key_default_policy);
604 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
605 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
611 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
613 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
614 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
615 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
618 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
619 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
620 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
623 if (info->attrs[NL80211_ATTR_KEY_IDX])
624 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
626 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
627 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
629 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
630 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
639 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
640 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
641 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
645 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
646 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
647 int err = nla_parse_nested(
648 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
649 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
650 nl80211_key_default_policy);
654 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
655 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
661 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
665 memset(k, 0, sizeof(*k));
669 if (info->attrs[NL80211_ATTR_KEY])
670 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
672 err = nl80211_parse_key_old(info, k);
677 if (k->def && k->defmgmt)
681 if (k->def_uni || !k->def_multi)
687 if (k->idx < 4 || k->idx > 5)
690 if (k->idx < 0 || k->idx > 3)
693 if (k->idx < 0 || k->idx > 5)
701 static struct cfg80211_cached_keys *
702 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
703 struct nlattr *keys, bool *no_ht)
705 struct key_parse parse;
707 struct cfg80211_cached_keys *result;
708 int rem, err, def = 0;
710 result = kzalloc(sizeof(*result), GFP_KERNEL);
712 return ERR_PTR(-ENOMEM);
715 result->defmgmt = -1;
717 nla_for_each_nested(key, keys, rem) {
718 memset(&parse, 0, sizeof(parse));
721 err = nl80211_parse_key_new(key, &parse);
727 if (parse.idx < 0 || parse.idx > 4)
733 result->def = parse.idx;
734 if (!parse.def_uni || !parse.def_multi)
736 } else if (parse.defmgmt)
738 err = cfg80211_validate_key_settings(rdev, &parse.p,
739 parse.idx, false, NULL);
742 result->params[parse.idx].cipher = parse.p.cipher;
743 result->params[parse.idx].key_len = parse.p.key_len;
744 result->params[parse.idx].key = result->data[parse.idx];
745 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
747 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
748 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
760 static int nl80211_key_allowed(struct wireless_dev *wdev)
762 ASSERT_WDEV_LOCK(wdev);
764 switch (wdev->iftype) {
765 case NL80211_IFTYPE_AP:
766 case NL80211_IFTYPE_AP_VLAN:
767 case NL80211_IFTYPE_P2P_GO:
768 case NL80211_IFTYPE_MESH_POINT:
770 case NL80211_IFTYPE_ADHOC:
771 if (!wdev->current_bss)
774 case NL80211_IFTYPE_STATION:
775 case NL80211_IFTYPE_P2P_CLIENT:
776 if (wdev->sme_state != CFG80211_SME_CONNECTED)
786 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
788 struct nlattr *nl_modes = nla_nest_start(msg, attr);
792 goto nla_put_failure;
796 if ((ifmodes & 1) && nla_put_flag(msg, i))
797 goto nla_put_failure;
802 nla_nest_end(msg, nl_modes);
809 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
812 struct nlattr *nl_combis;
815 nl_combis = nla_nest_start(msg,
816 NL80211_ATTR_INTERFACE_COMBINATIONS);
818 goto nla_put_failure;
820 for (i = 0; i < wiphy->n_iface_combinations; i++) {
821 const struct ieee80211_iface_combination *c;
822 struct nlattr *nl_combi, *nl_limits;
824 c = &wiphy->iface_combinations[i];
826 nl_combi = nla_nest_start(msg, i + 1);
828 goto nla_put_failure;
830 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
832 goto nla_put_failure;
834 for (j = 0; j < c->n_limits; j++) {
835 struct nlattr *nl_limit;
837 nl_limit = nla_nest_start(msg, j + 1);
839 goto nla_put_failure;
840 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
842 goto nla_put_failure;
843 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
845 goto nla_put_failure;
846 nla_nest_end(msg, nl_limit);
849 nla_nest_end(msg, nl_limits);
851 if (c->beacon_int_infra_match &&
852 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
853 goto nla_put_failure;
854 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
855 c->num_different_channels) ||
856 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
858 goto nla_put_failure;
860 nla_nest_end(msg, nl_combi);
863 nla_nest_end(msg, nl_combis);
870 static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
871 struct cfg80211_registered_device *dev)
874 struct nlattr *nl_bands, *nl_band;
875 struct nlattr *nl_freqs, *nl_freq;
876 struct nlattr *nl_rates, *nl_rate;
877 struct nlattr *nl_cmds;
878 enum ieee80211_band band;
879 struct ieee80211_channel *chan;
880 struct ieee80211_rate *rate;
882 const struct ieee80211_txrx_stypes *mgmt_stypes =
883 dev->wiphy.mgmt_stypes;
885 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
889 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
890 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
891 nla_put_u32(msg, NL80211_ATTR_GENERATION,
892 cfg80211_rdev_list_generation) ||
893 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
894 dev->wiphy.retry_short) ||
895 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
896 dev->wiphy.retry_long) ||
897 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
898 dev->wiphy.frag_threshold) ||
899 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
900 dev->wiphy.rts_threshold) ||
901 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
902 dev->wiphy.coverage_class) ||
903 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
904 dev->wiphy.max_scan_ssids) ||
905 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
906 dev->wiphy.max_sched_scan_ssids) ||
907 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
908 dev->wiphy.max_scan_ie_len) ||
909 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
910 dev->wiphy.max_sched_scan_ie_len) ||
911 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
912 dev->wiphy.max_match_sets))
913 goto nla_put_failure;
915 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
916 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
917 goto nla_put_failure;
918 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
919 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
920 goto nla_put_failure;
921 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
922 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
923 goto nla_put_failure;
924 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
925 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
926 goto nla_put_failure;
927 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
928 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
929 goto nla_put_failure;
930 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
931 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
932 goto nla_put_failure;
934 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
935 sizeof(u32) * dev->wiphy.n_cipher_suites,
936 dev->wiphy.cipher_suites))
937 goto nla_put_failure;
939 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
940 dev->wiphy.max_num_pmkids))
941 goto nla_put_failure;
943 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
944 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
945 goto nla_put_failure;
947 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
948 dev->wiphy.available_antennas_tx) ||
949 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
950 dev->wiphy.available_antennas_rx))
951 goto nla_put_failure;
953 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
954 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
955 dev->wiphy.probe_resp_offload))
956 goto nla_put_failure;
958 if ((dev->wiphy.available_antennas_tx ||
959 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
960 u32 tx_ant = 0, rx_ant = 0;
962 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
964 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
966 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
968 goto nla_put_failure;
972 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
973 dev->wiphy.interface_modes))
974 goto nla_put_failure;
976 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
978 goto nla_put_failure;
980 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
981 if (!dev->wiphy.bands[band])
984 nl_band = nla_nest_start(msg, band);
986 goto nla_put_failure;
989 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
990 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
991 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
992 &dev->wiphy.bands[band]->ht_cap.mcs) ||
993 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
994 dev->wiphy.bands[band]->ht_cap.cap) ||
995 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
996 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
997 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
998 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
999 goto nla_put_failure;
1002 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1003 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1004 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1005 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1006 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1007 dev->wiphy.bands[band]->vht_cap.cap)))
1008 goto nla_put_failure;
1010 /* add frequencies */
1011 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1013 goto nla_put_failure;
1015 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1016 nl_freq = nla_nest_start(msg, i);
1018 goto nla_put_failure;
1020 chan = &dev->wiphy.bands[band]->channels[i];
1022 if (nl80211_msg_put_channel(msg, chan))
1023 goto nla_put_failure;
1025 nla_nest_end(msg, nl_freq);
1028 nla_nest_end(msg, nl_freqs);
1031 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1033 goto nla_put_failure;
1035 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1036 nl_rate = nla_nest_start(msg, i);
1038 goto nla_put_failure;
1040 rate = &dev->wiphy.bands[band]->bitrates[i];
1041 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1043 goto nla_put_failure;
1044 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1046 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1047 goto nla_put_failure;
1049 nla_nest_end(msg, nl_rate);
1052 nla_nest_end(msg, nl_rates);
1054 nla_nest_end(msg, nl_band);
1056 nla_nest_end(msg, nl_bands);
1058 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1060 goto nla_put_failure;
1063 #define CMD(op, n) \
1065 if (dev->ops->op) { \
1067 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1068 goto nla_put_failure; \
1072 CMD(add_virtual_intf, NEW_INTERFACE);
1073 CMD(change_virtual_intf, SET_INTERFACE);
1074 CMD(add_key, NEW_KEY);
1075 CMD(start_ap, START_AP);
1076 CMD(add_station, NEW_STATION);
1077 CMD(add_mpath, NEW_MPATH);
1078 CMD(update_mesh_config, SET_MESH_CONFIG);
1079 CMD(change_bss, SET_BSS);
1080 CMD(auth, AUTHENTICATE);
1081 CMD(assoc, ASSOCIATE);
1082 CMD(deauth, DEAUTHENTICATE);
1083 CMD(disassoc, DISASSOCIATE);
1084 CMD(join_ibss, JOIN_IBSS);
1085 CMD(join_mesh, JOIN_MESH);
1086 CMD(set_pmksa, SET_PMKSA);
1087 CMD(del_pmksa, DEL_PMKSA);
1088 CMD(flush_pmksa, FLUSH_PMKSA);
1089 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1090 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1091 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1092 CMD(mgmt_tx, FRAME);
1093 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1094 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1096 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1097 goto nla_put_failure;
1099 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1100 dev->ops->join_mesh) {
1102 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1103 goto nla_put_failure;
1105 CMD(set_wds_peer, SET_WDS_PEER);
1106 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1107 CMD(tdls_mgmt, TDLS_MGMT);
1108 CMD(tdls_oper, TDLS_OPER);
1110 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1111 CMD(sched_scan_start, START_SCHED_SCAN);
1112 CMD(probe_client, PROBE_CLIENT);
1113 CMD(set_noack_map, SET_NOACK_MAP);
1114 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1116 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1117 goto nla_put_failure;
1119 CMD(start_p2p_device, START_P2P_DEVICE);
1120 CMD(set_mcast_rate, SET_MCAST_RATE);
1122 #ifdef CONFIG_NL80211_TESTMODE
1123 CMD(testmode_cmd, TESTMODE);
1128 if (dev->ops->connect || dev->ops->auth) {
1130 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1131 goto nla_put_failure;
1134 if (dev->ops->disconnect || dev->ops->deauth) {
1136 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1137 goto nla_put_failure;
1140 nla_nest_end(msg, nl_cmds);
1142 if (dev->ops->remain_on_channel &&
1143 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1144 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1145 dev->wiphy.max_remain_on_channel_duration))
1146 goto nla_put_failure;
1148 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1149 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1150 goto nla_put_failure;
1154 struct nlattr *nl_ftypes, *nl_ifs;
1155 enum nl80211_iftype ift;
1157 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1159 goto nla_put_failure;
1161 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1162 nl_ftypes = nla_nest_start(msg, ift);
1164 goto nla_put_failure;
1166 stypes = mgmt_stypes[ift].tx;
1169 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1170 (i << 4) | IEEE80211_FTYPE_MGMT))
1171 goto nla_put_failure;
1175 nla_nest_end(msg, nl_ftypes);
1178 nla_nest_end(msg, nl_ifs);
1180 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1182 goto nla_put_failure;
1184 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1185 nl_ftypes = nla_nest_start(msg, ift);
1187 goto nla_put_failure;
1189 stypes = mgmt_stypes[ift].rx;
1192 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1193 (i << 4) | IEEE80211_FTYPE_MGMT))
1194 goto nla_put_failure;
1198 nla_nest_end(msg, nl_ftypes);
1200 nla_nest_end(msg, nl_ifs);
1204 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1205 struct nlattr *nl_wowlan;
1207 nl_wowlan = nla_nest_start(msg,
1208 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1210 goto nla_put_failure;
1212 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1213 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1214 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1215 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1216 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1217 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1218 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1219 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1220 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1221 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1222 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1223 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1224 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1225 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1226 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1227 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1228 goto nla_put_failure;
1229 if (dev->wiphy.wowlan.n_patterns) {
1230 struct nl80211_wowlan_pattern_support pat = {
1231 .max_patterns = dev->wiphy.wowlan.n_patterns,
1233 dev->wiphy.wowlan.pattern_min_len,
1235 dev->wiphy.wowlan.pattern_max_len,
1237 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1239 goto nla_put_failure;
1242 nla_nest_end(msg, nl_wowlan);
1246 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1247 dev->wiphy.software_iftypes))
1248 goto nla_put_failure;
1250 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1251 goto nla_put_failure;
1253 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1254 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1255 dev->wiphy.ap_sme_capa))
1256 goto nla_put_failure;
1258 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1259 dev->wiphy.features))
1260 goto nla_put_failure;
1262 if (dev->wiphy.ht_capa_mod_mask &&
1263 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1264 sizeof(*dev->wiphy.ht_capa_mod_mask),
1265 dev->wiphy.ht_capa_mod_mask))
1266 goto nla_put_failure;
1268 return genlmsg_end(msg, hdr);
1271 genlmsg_cancel(msg, hdr);
1275 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1278 int start = cb->args[0];
1279 struct cfg80211_registered_device *dev;
1281 mutex_lock(&cfg80211_mutex);
1282 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1283 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1287 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1288 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1294 mutex_unlock(&cfg80211_mutex);
1301 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1303 struct sk_buff *msg;
1304 struct cfg80211_registered_device *dev = info->user_ptr[0];
1306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1310 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
1315 return genlmsg_reply(msg, info);
1318 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1319 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1320 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1321 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1322 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1323 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1326 static int parse_txq_params(struct nlattr *tb[],
1327 struct ieee80211_txq_params *txq_params)
1329 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1330 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1331 !tb[NL80211_TXQ_ATTR_AIFS])
1334 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1335 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1336 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1337 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1338 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1340 if (txq_params->ac >= NL80211_NUM_ACS)
1346 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1349 * You can only set the channel explicitly for WDS interfaces,
1350 * all others have their channel managed via their respective
1351 * "establish a connection" command (connect, join, ...)
1353 * For AP/GO and mesh mode, the channel can be set with the
1354 * channel userspace API, but is only stored and passed to the
1355 * low-level driver when the AP starts or the mesh is joined.
1356 * This is for backward compatibility, userspace can also give
1357 * the channel in the start-ap or join-mesh commands instead.
1359 * Monitors are special as they are normally slaved to
1360 * whatever else is going on, so they have their own special
1361 * operation to set the monitor channel if possible.
1364 wdev->iftype == NL80211_IFTYPE_AP ||
1365 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1366 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1367 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1370 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1371 struct genl_info *info,
1372 struct cfg80211_chan_def *chandef)
1376 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1379 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1381 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1382 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1383 chandef->center_freq1 = control_freq;
1384 chandef->center_freq2 = 0;
1386 /* Primary channel not allowed */
1387 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1390 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1391 enum nl80211_channel_type chantype;
1393 chantype = nla_get_u32(
1394 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1397 case NL80211_CHAN_NO_HT:
1398 case NL80211_CHAN_HT20:
1399 case NL80211_CHAN_HT40PLUS:
1400 case NL80211_CHAN_HT40MINUS:
1401 cfg80211_chandef_create(chandef, chandef->chan,
1407 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1409 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1410 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1411 chandef->center_freq1 =
1413 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1414 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1415 chandef->center_freq2 =
1417 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1420 if (!cfg80211_chandef_valid(chandef))
1423 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1424 IEEE80211_CHAN_DISABLED))
1430 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1431 struct wireless_dev *wdev,
1432 struct genl_info *info)
1434 struct cfg80211_chan_def chandef;
1436 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1439 iftype = wdev->iftype;
1441 if (!nl80211_can_set_dev_channel(wdev))
1444 result = nl80211_parse_chandef(rdev, info, &chandef);
1448 mutex_lock(&rdev->devlist_mtx);
1450 case NL80211_IFTYPE_AP:
1451 case NL80211_IFTYPE_P2P_GO:
1452 if (wdev->beacon_interval) {
1456 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1460 wdev->preset_chandef = chandef;
1463 case NL80211_IFTYPE_MESH_POINT:
1464 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1466 case NL80211_IFTYPE_MONITOR:
1467 result = cfg80211_set_monitor_channel(rdev, &chandef);
1472 mutex_unlock(&rdev->devlist_mtx);
1477 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1480 struct net_device *netdev = info->user_ptr[1];
1482 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1485 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1488 struct net_device *dev = info->user_ptr[1];
1489 struct wireless_dev *wdev = dev->ieee80211_ptr;
1492 if (!info->attrs[NL80211_ATTR_MAC])
1495 if (netif_running(dev))
1498 if (!rdev->ops->set_wds_peer)
1501 if (wdev->iftype != NL80211_IFTYPE_WDS)
1504 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1505 return rdev_set_wds_peer(rdev, dev, bssid);
1509 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1511 struct cfg80211_registered_device *rdev;
1512 struct net_device *netdev = NULL;
1513 struct wireless_dev *wdev;
1514 int result = 0, rem_txq_params = 0;
1515 struct nlattr *nl_txq_params;
1517 u8 retry_short = 0, retry_long = 0;
1518 u32 frag_threshold = 0, rts_threshold = 0;
1519 u8 coverage_class = 0;
1522 * Try to find the wiphy and netdev. Normally this
1523 * function shouldn't need the netdev, but this is
1524 * done for backward compatibility -- previously
1525 * setting the channel was done per wiphy, but now
1526 * it is per netdev. Previous userland like hostapd
1527 * also passed a netdev to set_wiphy, so that it is
1528 * possible to let that go to the right netdev!
1530 mutex_lock(&cfg80211_mutex);
1532 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1533 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1535 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1536 if (netdev && netdev->ieee80211_ptr) {
1537 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1538 mutex_lock(&rdev->mtx);
1544 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1547 mutex_unlock(&cfg80211_mutex);
1548 return PTR_ERR(rdev);
1554 mutex_lock(&rdev->mtx);
1556 wdev = netdev->ieee80211_ptr;
1559 * end workaround code, by now the rdev is available
1560 * and locked, and wdev may or may not be NULL.
1563 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1564 result = cfg80211_dev_rename(
1565 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1567 mutex_unlock(&cfg80211_mutex);
1572 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1573 struct ieee80211_txq_params txq_params;
1574 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1576 if (!rdev->ops->set_txq_params) {
1577 result = -EOPNOTSUPP;
1586 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1587 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1592 if (!netif_running(netdev)) {
1597 nla_for_each_nested(nl_txq_params,
1598 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1600 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1601 nla_data(nl_txq_params),
1602 nla_len(nl_txq_params),
1604 result = parse_txq_params(tb, &txq_params);
1608 result = rdev_set_txq_params(rdev, netdev,
1615 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1616 result = __nl80211_set_channel(rdev,
1617 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1623 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1624 struct wireless_dev *txp_wdev = wdev;
1625 enum nl80211_tx_power_setting type;
1628 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1631 if (!rdev->ops->set_tx_power) {
1632 result = -EOPNOTSUPP;
1636 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1637 type = nla_get_u32(info->attrs[idx]);
1639 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1640 (type != NL80211_TX_POWER_AUTOMATIC)) {
1645 if (type != NL80211_TX_POWER_AUTOMATIC) {
1646 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1647 mbm = nla_get_u32(info->attrs[idx]);
1650 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1655 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1656 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1658 if ((!rdev->wiphy.available_antennas_tx &&
1659 !rdev->wiphy.available_antennas_rx) ||
1660 !rdev->ops->set_antenna) {
1661 result = -EOPNOTSUPP;
1665 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1666 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1668 /* reject antenna configurations which don't match the
1669 * available antenna masks, except for the "all" mask */
1670 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1671 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1676 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1677 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1679 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
1686 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1687 retry_short = nla_get_u8(
1688 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1689 if (retry_short == 0) {
1693 changed |= WIPHY_PARAM_RETRY_SHORT;
1696 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1697 retry_long = nla_get_u8(
1698 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1699 if (retry_long == 0) {
1703 changed |= WIPHY_PARAM_RETRY_LONG;
1706 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1707 frag_threshold = nla_get_u32(
1708 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1709 if (frag_threshold < 256) {
1713 if (frag_threshold != (u32) -1) {
1715 * Fragments (apart from the last one) are required to
1716 * have even length. Make the fragmentation code
1717 * simpler by stripping LSB should someone try to use
1718 * odd threshold value.
1720 frag_threshold &= ~0x1;
1722 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1725 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1726 rts_threshold = nla_get_u32(
1727 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1728 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1731 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1732 coverage_class = nla_get_u8(
1733 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1734 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1738 u8 old_retry_short, old_retry_long;
1739 u32 old_frag_threshold, old_rts_threshold;
1740 u8 old_coverage_class;
1742 if (!rdev->ops->set_wiphy_params) {
1743 result = -EOPNOTSUPP;
1747 old_retry_short = rdev->wiphy.retry_short;
1748 old_retry_long = rdev->wiphy.retry_long;
1749 old_frag_threshold = rdev->wiphy.frag_threshold;
1750 old_rts_threshold = rdev->wiphy.rts_threshold;
1751 old_coverage_class = rdev->wiphy.coverage_class;
1753 if (changed & WIPHY_PARAM_RETRY_SHORT)
1754 rdev->wiphy.retry_short = retry_short;
1755 if (changed & WIPHY_PARAM_RETRY_LONG)
1756 rdev->wiphy.retry_long = retry_long;
1757 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1758 rdev->wiphy.frag_threshold = frag_threshold;
1759 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1760 rdev->wiphy.rts_threshold = rts_threshold;
1761 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1762 rdev->wiphy.coverage_class = coverage_class;
1764 result = rdev_set_wiphy_params(rdev, changed);
1766 rdev->wiphy.retry_short = old_retry_short;
1767 rdev->wiphy.retry_long = old_retry_long;
1768 rdev->wiphy.frag_threshold = old_frag_threshold;
1769 rdev->wiphy.rts_threshold = old_rts_threshold;
1770 rdev->wiphy.coverage_class = old_coverage_class;
1775 mutex_unlock(&rdev->mtx);
1781 static inline u64 wdev_id(struct wireless_dev *wdev)
1783 return (u64)wdev->identifier |
1784 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1787 static int nl80211_send_chandef(struct sk_buff *msg,
1788 struct cfg80211_chan_def *chandef)
1790 WARN_ON(!cfg80211_chandef_valid(chandef));
1792 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1793 chandef->chan->center_freq))
1795 switch (chandef->width) {
1796 case NL80211_CHAN_WIDTH_20_NOHT:
1797 case NL80211_CHAN_WIDTH_20:
1798 case NL80211_CHAN_WIDTH_40:
1799 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1800 cfg80211_get_chandef_type(chandef)))
1806 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1808 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1810 if (chandef->center_freq2 &&
1811 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
1816 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
1817 struct cfg80211_registered_device *rdev,
1818 struct wireless_dev *wdev)
1820 struct net_device *dev = wdev->netdev;
1823 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1828 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1829 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
1830 goto nla_put_failure;
1832 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1833 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1834 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1835 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
1836 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1837 rdev->devlist_generation ^
1838 (cfg80211_rdev_list_generation << 2)))
1839 goto nla_put_failure;
1841 if (rdev->ops->get_channel) {
1843 struct cfg80211_chan_def chandef;
1845 ret = rdev_get_channel(rdev, wdev, &chandef);
1847 if (nl80211_send_chandef(msg, &chandef))
1848 goto nla_put_failure;
1852 if (wdev->ssid_len) {
1853 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1854 goto nla_put_failure;
1857 return genlmsg_end(msg, hdr);
1860 genlmsg_cancel(msg, hdr);
1864 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1868 int wp_start = cb->args[0];
1869 int if_start = cb->args[1];
1870 struct cfg80211_registered_device *rdev;
1871 struct wireless_dev *wdev;
1873 mutex_lock(&cfg80211_mutex);
1874 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1875 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1877 if (wp_idx < wp_start) {
1883 mutex_lock(&rdev->devlist_mtx);
1884 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1885 if (if_idx < if_start) {
1889 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
1890 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1892 mutex_unlock(&rdev->devlist_mtx);
1897 mutex_unlock(&rdev->devlist_mtx);
1902 mutex_unlock(&cfg80211_mutex);
1904 cb->args[0] = wp_idx;
1905 cb->args[1] = if_idx;
1910 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1912 struct sk_buff *msg;
1913 struct cfg80211_registered_device *dev = info->user_ptr[0];
1914 struct wireless_dev *wdev = info->user_ptr[1];
1916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1920 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1926 return genlmsg_reply(msg, info);
1929 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1930 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1931 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1932 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1933 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1934 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1937 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1939 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1947 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1948 nla, mntr_flags_policy))
1951 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1953 *mntrflags |= (1<<flag);
1958 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1959 struct net_device *netdev, u8 use_4addr,
1960 enum nl80211_iftype iftype)
1963 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1969 case NL80211_IFTYPE_AP_VLAN:
1970 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1973 case NL80211_IFTYPE_STATION:
1974 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1984 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1987 struct vif_params params;
1989 enum nl80211_iftype otype, ntype;
1990 struct net_device *dev = info->user_ptr[1];
1991 u32 _flags, *flags = NULL;
1992 bool change = false;
1994 memset(¶ms, 0, sizeof(params));
1996 otype = ntype = dev->ieee80211_ptr->iftype;
1998 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1999 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2002 if (ntype > NL80211_IFTYPE_MAX)
2006 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2007 struct wireless_dev *wdev = dev->ieee80211_ptr;
2009 if (ntype != NL80211_IFTYPE_MESH_POINT)
2011 if (netif_running(dev))
2015 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2016 IEEE80211_MAX_MESH_ID_LEN);
2017 wdev->mesh_id_up_len =
2018 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2019 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2020 wdev->mesh_id_up_len);
2024 if (info->attrs[NL80211_ATTR_4ADDR]) {
2025 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2027 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2031 params.use_4addr = -1;
2034 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2035 if (ntype != NL80211_IFTYPE_MONITOR)
2037 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2047 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2051 if (!err && params.use_4addr != -1)
2052 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2057 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2060 struct vif_params params;
2061 struct wireless_dev *wdev;
2062 struct sk_buff *msg;
2064 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2067 memset(¶ms, 0, sizeof(params));
2069 if (!info->attrs[NL80211_ATTR_IFNAME])
2072 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2073 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2074 if (type > NL80211_IFTYPE_MAX)
2078 if (!rdev->ops->add_virtual_intf ||
2079 !(rdev->wiphy.interface_modes & (1 << type)))
2082 if (info->attrs[NL80211_ATTR_4ADDR]) {
2083 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2084 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2093 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2094 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2096 wdev = rdev_add_virtual_intf(rdev,
2097 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2098 type, err ? NULL : &flags, ¶ms);
2101 return PTR_ERR(wdev);
2105 case NL80211_IFTYPE_MESH_POINT:
2106 if (!info->attrs[NL80211_ATTR_MESH_ID])
2109 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2110 IEEE80211_MAX_MESH_ID_LEN);
2111 wdev->mesh_id_up_len =
2112 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2113 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2114 wdev->mesh_id_up_len);
2117 case NL80211_IFTYPE_P2P_DEVICE:
2119 * P2P Device doesn't have a netdev, so doesn't go
2120 * through the netdev notifier and must be added here
2122 mutex_init(&wdev->mtx);
2123 INIT_LIST_HEAD(&wdev->event_list);
2124 spin_lock_init(&wdev->event_lock);
2125 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2126 spin_lock_init(&wdev->mgmt_registrations_lock);
2128 mutex_lock(&rdev->devlist_mtx);
2129 wdev->identifier = ++rdev->wdev_id;
2130 list_add_rcu(&wdev->list, &rdev->wdev_list);
2131 rdev->devlist_generation++;
2132 mutex_unlock(&rdev->devlist_mtx);
2138 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2144 return genlmsg_reply(msg, info);
2147 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2150 struct wireless_dev *wdev = info->user_ptr[1];
2152 if (!rdev->ops->del_virtual_intf)
2156 * If we remove a wireless device without a netdev then clear
2157 * user_ptr[1] so that nl80211_post_doit won't dereference it
2158 * to check if it needs to do dev_put(). Otherwise it crashes
2159 * since the wdev has been freed, unlike with a netdev where
2160 * we need the dev_put() for the netdev to really be freed.
2163 info->user_ptr[1] = NULL;
2165 return rdev_del_virtual_intf(rdev, wdev);
2168 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2171 struct net_device *dev = info->user_ptr[1];
2174 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2177 if (!rdev->ops->set_noack_map)
2180 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2182 return rdev_set_noack_map(rdev, dev, noack_map);
2185 struct get_key_cookie {
2186 struct sk_buff *msg;
2191 static void get_key_callback(void *c, struct key_params *params)
2194 struct get_key_cookie *cookie = c;
2197 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2198 params->key_len, params->key)) ||
2200 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2201 params->seq_len, params->seq)) ||
2203 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2205 goto nla_put_failure;
2207 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2209 goto nla_put_failure;
2212 nla_put(cookie->msg, NL80211_KEY_DATA,
2213 params->key_len, params->key)) ||
2215 nla_put(cookie->msg, NL80211_KEY_SEQ,
2216 params->seq_len, params->seq)) ||
2218 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2220 goto nla_put_failure;
2222 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2223 goto nla_put_failure;
2225 nla_nest_end(cookie->msg, key);
2232 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2236 struct net_device *dev = info->user_ptr[1];
2238 const u8 *mac_addr = NULL;
2240 struct get_key_cookie cookie = {
2244 struct sk_buff *msg;
2246 if (info->attrs[NL80211_ATTR_KEY_IDX])
2247 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2252 if (info->attrs[NL80211_ATTR_MAC])
2253 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2255 pairwise = !!mac_addr;
2256 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2257 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2258 if (kt >= NUM_NL80211_KEYTYPES)
2260 if (kt != NL80211_KEYTYPE_GROUP &&
2261 kt != NL80211_KEYTYPE_PAIRWISE)
2263 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2266 if (!rdev->ops->get_key)
2269 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2273 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2274 NL80211_CMD_NEW_KEY);
2276 return PTR_ERR(hdr);
2279 cookie.idx = key_idx;
2281 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2282 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2283 goto nla_put_failure;
2285 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2286 goto nla_put_failure;
2288 if (pairwise && mac_addr &&
2289 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2292 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2299 goto nla_put_failure;
2301 genlmsg_end(msg, hdr);
2302 return genlmsg_reply(msg, info);
2311 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2314 struct key_parse key;
2316 struct net_device *dev = info->user_ptr[1];
2318 err = nl80211_parse_key(info, &key);
2325 /* only support setting default key */
2326 if (!key.def && !key.defmgmt)
2329 wdev_lock(dev->ieee80211_ptr);
2332 if (!rdev->ops->set_default_key) {
2337 err = nl80211_key_allowed(dev->ieee80211_ptr);
2341 err = rdev_set_default_key(rdev, dev, key.idx,
2342 key.def_uni, key.def_multi);
2347 #ifdef CONFIG_CFG80211_WEXT
2348 dev->ieee80211_ptr->wext.default_key = key.idx;
2351 if (key.def_uni || !key.def_multi) {
2356 if (!rdev->ops->set_default_mgmt_key) {
2361 err = nl80211_key_allowed(dev->ieee80211_ptr);
2365 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2369 #ifdef CONFIG_CFG80211_WEXT
2370 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2375 wdev_unlock(dev->ieee80211_ptr);
2380 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2384 struct net_device *dev = info->user_ptr[1];
2385 struct key_parse key;
2386 const u8 *mac_addr = NULL;
2388 err = nl80211_parse_key(info, &key);
2395 if (info->attrs[NL80211_ATTR_MAC])
2396 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2398 if (key.type == -1) {
2400 key.type = NL80211_KEYTYPE_PAIRWISE;
2402 key.type = NL80211_KEYTYPE_GROUP;
2406 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2407 key.type != NL80211_KEYTYPE_GROUP)
2410 if (!rdev->ops->add_key)
2413 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2414 key.type == NL80211_KEYTYPE_PAIRWISE,
2418 wdev_lock(dev->ieee80211_ptr);
2419 err = nl80211_key_allowed(dev->ieee80211_ptr);
2421 err = rdev_add_key(rdev, dev, key.idx,
2422 key.type == NL80211_KEYTYPE_PAIRWISE,
2424 wdev_unlock(dev->ieee80211_ptr);
2429 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2433 struct net_device *dev = info->user_ptr[1];
2434 u8 *mac_addr = NULL;
2435 struct key_parse key;
2437 err = nl80211_parse_key(info, &key);
2441 if (info->attrs[NL80211_ATTR_MAC])
2442 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2444 if (key.type == -1) {
2446 key.type = NL80211_KEYTYPE_PAIRWISE;
2448 key.type = NL80211_KEYTYPE_GROUP;
2452 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2453 key.type != NL80211_KEYTYPE_GROUP)
2456 if (!rdev->ops->del_key)
2459 wdev_lock(dev->ieee80211_ptr);
2460 err = nl80211_key_allowed(dev->ieee80211_ptr);
2462 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2463 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2467 err = rdev_del_key(rdev, dev, key.idx,
2468 key.type == NL80211_KEYTYPE_PAIRWISE,
2471 #ifdef CONFIG_CFG80211_WEXT
2473 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2474 dev->ieee80211_ptr->wext.default_key = -1;
2475 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2476 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2479 wdev_unlock(dev->ieee80211_ptr);
2484 static int nl80211_parse_beacon(struct genl_info *info,
2485 struct cfg80211_beacon_data *bcn)
2487 bool haveinfo = false;
2489 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2490 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2491 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2492 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2495 memset(bcn, 0, sizeof(*bcn));
2497 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2498 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2499 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2505 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2506 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2508 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2515 if (info->attrs[NL80211_ATTR_IE]) {
2516 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2517 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2520 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2521 bcn->proberesp_ies =
2522 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2523 bcn->proberesp_ies_len =
2524 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2527 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2528 bcn->assocresp_ies =
2529 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2530 bcn->assocresp_ies_len =
2531 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2534 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2536 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2537 bcn->probe_resp_len =
2538 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2544 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2545 struct cfg80211_ap_settings *params)
2547 struct wireless_dev *wdev;
2550 mutex_lock(&rdev->devlist_mtx);
2552 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2553 if (wdev->iftype != NL80211_IFTYPE_AP &&
2554 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2557 if (!wdev->preset_chandef.chan)
2560 params->chandef = wdev->preset_chandef;
2565 mutex_unlock(&rdev->devlist_mtx);
2570 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2571 enum nl80211_auth_type auth_type,
2572 enum nl80211_commands cmd)
2574 if (auth_type > NL80211_AUTHTYPE_MAX)
2578 case NL80211_CMD_AUTHENTICATE:
2579 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2580 auth_type == NL80211_AUTHTYPE_SAE)
2583 case NL80211_CMD_CONNECT:
2584 case NL80211_CMD_START_AP:
2585 /* SAE not supported yet */
2586 if (auth_type == NL80211_AUTHTYPE_SAE)
2594 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2597 struct net_device *dev = info->user_ptr[1];
2598 struct wireless_dev *wdev = dev->ieee80211_ptr;
2599 struct cfg80211_ap_settings params;
2602 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2603 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2606 if (!rdev->ops->start_ap)
2609 if (wdev->beacon_interval)
2612 memset(¶ms, 0, sizeof(params));
2614 /* these are required for START_AP */
2615 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2616 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2617 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2620 err = nl80211_parse_beacon(info, ¶ms.beacon);
2624 params.beacon_interval =
2625 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2626 params.dtim_period =
2627 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2629 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2634 * In theory, some of these attributes should be required here
2635 * but since they were not used when the command was originally
2636 * added, keep them optional for old user space programs to let
2637 * them continue to work with drivers that do not need the
2638 * additional information -- drivers must check!
2640 if (info->attrs[NL80211_ATTR_SSID]) {
2641 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2643 nla_len(info->attrs[NL80211_ATTR_SSID]);
2644 if (params.ssid_len == 0 ||
2645 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2649 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2650 params.hidden_ssid = nla_get_u32(
2651 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2652 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2653 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2654 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2658 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2660 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2661 params.auth_type = nla_get_u32(
2662 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2663 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2664 NL80211_CMD_START_AP))
2667 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2669 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2670 NL80211_MAX_NR_CIPHER_SUITES);
2674 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2675 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2677 params.inactivity_timeout = nla_get_u16(
2678 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2681 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2682 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2684 params.p2p_ctwindow =
2685 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2686 if (params.p2p_ctwindow > 127)
2688 if (params.p2p_ctwindow != 0 &&
2689 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2693 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2696 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2698 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2701 params.p2p_opp_ps = tmp;
2702 if (params.p2p_opp_ps != 0 &&
2703 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2707 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2708 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
2711 } else if (wdev->preset_chandef.chan) {
2712 params.chandef = wdev->preset_chandef;
2713 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2716 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
2719 mutex_lock(&rdev->devlist_mtx);
2720 err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan,
2722 mutex_unlock(&rdev->devlist_mtx);
2727 err = rdev_start_ap(rdev, dev, ¶ms);
2729 wdev->preset_chandef = params.chandef;
2730 wdev->beacon_interval = params.beacon_interval;
2731 wdev->channel = params.chandef.chan;
2732 wdev->ssid_len = params.ssid_len;
2733 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
2738 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2741 struct net_device *dev = info->user_ptr[1];
2742 struct wireless_dev *wdev = dev->ieee80211_ptr;
2743 struct cfg80211_beacon_data params;
2746 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2747 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2750 if (!rdev->ops->change_beacon)
2753 if (!wdev->beacon_interval)
2756 err = nl80211_parse_beacon(info, ¶ms);
2760 return rdev_change_beacon(rdev, dev, ¶ms);
2763 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2766 struct net_device *dev = info->user_ptr[1];
2768 return cfg80211_stop_ap(rdev, dev);
2771 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2772 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2773 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2774 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2775 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2776 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2777 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2780 static int parse_station_flags(struct genl_info *info,
2781 enum nl80211_iftype iftype,
2782 struct station_parameters *params)
2784 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2789 * Try parsing the new attribute first so userspace
2790 * can specify both for older kernels.
2792 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2794 struct nl80211_sta_flag_update *sta_flags;
2796 sta_flags = nla_data(nla);
2797 params->sta_flags_mask = sta_flags->mask;
2798 params->sta_flags_set = sta_flags->set;
2799 if ((params->sta_flags_mask |
2800 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2805 /* if present, parse the old attribute */
2807 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2811 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2812 nla, sta_flags_policy))
2816 * Only allow certain flags for interface types so that
2817 * other attributes are silently ignored. Remember that
2818 * this is backward compatibility code with old userspace
2819 * and shouldn't be hit in other cases anyway.
2822 case NL80211_IFTYPE_AP:
2823 case NL80211_IFTYPE_AP_VLAN:
2824 case NL80211_IFTYPE_P2P_GO:
2825 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2826 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2827 BIT(NL80211_STA_FLAG_WME) |
2828 BIT(NL80211_STA_FLAG_MFP);
2830 case NL80211_IFTYPE_P2P_CLIENT:
2831 case NL80211_IFTYPE_STATION:
2832 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2833 BIT(NL80211_STA_FLAG_TDLS_PEER);
2835 case NL80211_IFTYPE_MESH_POINT:
2836 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2837 BIT(NL80211_STA_FLAG_MFP) |
2838 BIT(NL80211_STA_FLAG_AUTHORIZED);
2843 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2845 params->sta_flags_set |= (1<<flag);
2847 /* no longer support new API additions in old API */
2848 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2856 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2859 struct nlattr *rate;
2863 rate = nla_nest_start(msg, attr);
2867 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2868 bitrate = cfg80211_calculate_bitrate(info);
2869 /* report 16-bit bitrate only if we can */
2870 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2872 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
2874 if (bitrate_compat > 0 &&
2875 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
2878 if (info->flags & RATE_INFO_FLAGS_MCS) {
2879 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
2881 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2882 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2884 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2885 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2887 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
2888 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
2890 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
2892 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2893 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2895 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
2896 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
2898 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
2899 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
2901 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
2902 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
2904 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2905 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2909 nla_nest_end(msg, rate);
2913 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
2915 struct cfg80211_registered_device *rdev,
2916 struct net_device *dev,
2917 const u8 *mac_addr, struct station_info *sinfo)
2920 struct nlattr *sinfoattr, *bss_param;
2922 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2926 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2927 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2928 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2929 goto nla_put_failure;
2931 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2933 goto nla_put_failure;
2934 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2935 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2936 sinfo->connected_time))
2937 goto nla_put_failure;
2938 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2939 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2940 sinfo->inactive_time))
2941 goto nla_put_failure;
2942 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2943 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2945 goto nla_put_failure;
2946 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2947 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2949 goto nla_put_failure;
2950 if ((sinfo->filled & STATION_INFO_LLID) &&
2951 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2952 goto nla_put_failure;
2953 if ((sinfo->filled & STATION_INFO_PLID) &&
2954 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2955 goto nla_put_failure;
2956 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2957 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2958 sinfo->plink_state))
2959 goto nla_put_failure;
2960 switch (rdev->wiphy.signal_type) {
2961 case CFG80211_SIGNAL_TYPE_MBM:
2962 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2963 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2965 goto nla_put_failure;
2966 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2967 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2969 goto nla_put_failure;
2974 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2975 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2976 NL80211_STA_INFO_TX_BITRATE))
2977 goto nla_put_failure;
2979 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2980 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2981 NL80211_STA_INFO_RX_BITRATE))
2982 goto nla_put_failure;
2984 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2985 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2987 goto nla_put_failure;
2988 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2989 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2991 goto nla_put_failure;
2992 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2993 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2995 goto nla_put_failure;
2996 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2997 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2999 goto nla_put_failure;
3000 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3001 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3002 sinfo->beacon_loss_count))
3003 goto nla_put_failure;
3004 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3005 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3007 goto nla_put_failure;
3009 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3010 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3011 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3012 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3013 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3014 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3015 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3016 sinfo->bss_param.dtim_period) ||
3017 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3018 sinfo->bss_param.beacon_interval))
3019 goto nla_put_failure;
3021 nla_nest_end(msg, bss_param);
3023 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3024 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3025 sizeof(struct nl80211_sta_flag_update),
3027 goto nla_put_failure;
3028 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3029 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3031 goto nla_put_failure;
3032 nla_nest_end(msg, sinfoattr);
3034 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3035 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3036 sinfo->assoc_req_ies))
3037 goto nla_put_failure;
3039 return genlmsg_end(msg, hdr);
3042 genlmsg_cancel(msg, hdr);
3046 static int nl80211_dump_station(struct sk_buff *skb,
3047 struct netlink_callback *cb)
3049 struct station_info sinfo;
3050 struct cfg80211_registered_device *dev;
3051 struct net_device *netdev;
3052 u8 mac_addr[ETH_ALEN];
3053 int sta_idx = cb->args[1];
3056 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3060 if (!dev->ops->dump_station) {
3066 memset(&sinfo, 0, sizeof(sinfo));
3067 err = rdev_dump_station(dev, netdev, sta_idx,
3074 if (nl80211_send_station(skb,
3075 NETLINK_CB(cb->skb).portid,
3076 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3077 dev, netdev, mac_addr,
3086 cb->args[1] = sta_idx;
3089 nl80211_finish_netdev_dump(dev);
3094 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3097 struct net_device *dev = info->user_ptr[1];
3098 struct station_info sinfo;
3099 struct sk_buff *msg;
3100 u8 *mac_addr = NULL;
3103 memset(&sinfo, 0, sizeof(sinfo));
3105 if (!info->attrs[NL80211_ATTR_MAC])
3108 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3110 if (!rdev->ops->get_station)
3113 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3117 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3121 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3122 rdev, dev, mac_addr, &sinfo) < 0) {
3127 return genlmsg_reply(msg, info);
3131 * Get vlan interface making sure it is running and on the right wiphy.
3133 static struct net_device *get_vlan(struct genl_info *info,
3134 struct cfg80211_registered_device *rdev)
3136 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3137 struct net_device *v;
3143 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3145 return ERR_PTR(-ENODEV);
3147 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3152 if (!netif_running(v)) {
3160 return ERR_PTR(ret);
3163 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3165 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3167 struct net_device *dev = info->user_ptr[1];
3168 struct station_parameters params;
3169 u8 *mac_addr = NULL;
3171 memset(¶ms, 0, sizeof(params));
3173 params.listen_interval = -1;
3174 params.plink_state = -1;
3176 if (info->attrs[NL80211_ATTR_STA_AID])
3179 if (!info->attrs[NL80211_ATTR_MAC])
3182 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3184 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3185 params.supported_rates =
3186 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3187 params.supported_rates_len =
3188 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3191 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3192 params.listen_interval =
3193 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3195 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3197 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3199 if (!rdev->ops->change_station)
3202 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3205 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3206 params.plink_action =
3207 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3209 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3210 params.plink_state =
3211 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3213 switch (dev->ieee80211_ptr->iftype) {
3214 case NL80211_IFTYPE_AP:
3215 case NL80211_IFTYPE_AP_VLAN:
3216 case NL80211_IFTYPE_P2P_GO:
3217 /* disallow mesh-specific things */
3218 if (params.plink_action)
3221 /* TDLS can't be set, ... */
3222 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3225 * ... but don't bother the driver with it. This works around
3226 * a hostapd/wpa_supplicant issue -- it always includes the
3227 * TLDS_PEER flag in the mask even for AP mode.
3229 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3231 /* accept only the listed bits */
3232 if (params.sta_flags_mask &
3233 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3234 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3235 BIT(NL80211_STA_FLAG_WME) |
3236 BIT(NL80211_STA_FLAG_MFP)))
3239 /* must be last in here for error handling */
3240 params.vlan = get_vlan(info, rdev);
3241 if (IS_ERR(params.vlan))
3242 return PTR_ERR(params.vlan);
3244 case NL80211_IFTYPE_P2P_CLIENT:
3245 case NL80211_IFTYPE_STATION:
3247 * Don't allow userspace to change the TDLS_PEER flag,
3248 * but silently ignore attempts to change it since we
3249 * don't have state here to verify that it doesn't try
3250 * to change the flag.
3252 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3254 case NL80211_IFTYPE_ADHOC:
3255 /* disallow things sta doesn't support */
3256 if (params.plink_action)
3260 if (params.listen_interval >= 0)
3262 /* reject any changes other than AUTHORIZED */
3263 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3266 case NL80211_IFTYPE_MESH_POINT:
3267 /* disallow things mesh doesn't support */
3272 if (params.listen_interval >= 0)
3275 * No special handling for TDLS here -- the userspace
3276 * mesh code doesn't have this bug.
3278 if (params.sta_flags_mask &
3279 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3280 BIT(NL80211_STA_FLAG_MFP) |
3281 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3288 /* be aware of params.vlan when changing code here */
3290 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3293 dev_put(params.vlan);
3298 static struct nla_policy
3299 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3300 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3301 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3304 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3308 struct net_device *dev = info->user_ptr[1];
3309 struct station_parameters params;
3310 u8 *mac_addr = NULL;
3312 memset(¶ms, 0, sizeof(params));
3314 if (!info->attrs[NL80211_ATTR_MAC])
3317 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3320 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3323 if (!info->attrs[NL80211_ATTR_STA_AID])
3326 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3327 params.supported_rates =
3328 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3329 params.supported_rates_len =
3330 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3331 params.listen_interval =
3332 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3334 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3335 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3338 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3340 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3342 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3344 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3346 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3347 params.plink_action =
3348 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3350 if (!rdev->ops->add_station)
3353 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3356 switch (dev->ieee80211_ptr->iftype) {
3357 case NL80211_IFTYPE_AP:
3358 case NL80211_IFTYPE_AP_VLAN:
3359 case NL80211_IFTYPE_P2P_GO:
3360 /* parse WME attributes if sta is WME capable */
3361 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3362 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3363 info->attrs[NL80211_ATTR_STA_WME]) {
3364 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3367 nla = info->attrs[NL80211_ATTR_STA_WME];
3368 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3369 nl80211_sta_wme_policy);
3373 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3374 params.uapsd_queues =
3375 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3376 if (params.uapsd_queues &
3377 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3380 if (tb[NL80211_STA_WME_MAX_SP])
3382 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3385 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3388 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3390 /* TDLS peers cannot be added */
3391 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3393 /* but don't bother the driver with it */
3394 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3396 /* must be last in here for error handling */
3397 params.vlan = get_vlan(info, rdev);
3398 if (IS_ERR(params.vlan))
3399 return PTR_ERR(params.vlan);
3401 case NL80211_IFTYPE_MESH_POINT:
3402 /* TDLS peers cannot be added */
3403 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3406 case NL80211_IFTYPE_STATION:
3407 /* Only TDLS peers can be added */
3408 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3410 /* Can only add if TDLS ... */
3411 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3413 /* ... with external setup is supported */
3414 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3421 /* be aware of params.vlan when changing code here */
3423 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
3426 dev_put(params.vlan);
3430 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3433 struct net_device *dev = info->user_ptr[1];
3434 u8 *mac_addr = NULL;
3436 if (info->attrs[NL80211_ATTR_MAC])
3437 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3439 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3440 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3441 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3442 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3445 if (!rdev->ops->del_station)
3448 return rdev_del_station(rdev, dev, mac_addr);
3451 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
3452 int flags, struct net_device *dev,
3453 u8 *dst, u8 *next_hop,
3454 struct mpath_info *pinfo)
3457 struct nlattr *pinfoattr;
3459 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3463 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3464 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3465 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3466 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3467 goto nla_put_failure;
3469 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3471 goto nla_put_failure;
3472 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3473 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3475 goto nla_put_failure;
3476 if (((pinfo->filled & MPATH_INFO_SN) &&
3477 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3478 ((pinfo->filled & MPATH_INFO_METRIC) &&
3479 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3481 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3482 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3484 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3485 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3487 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3488 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3489 pinfo->discovery_timeout)) ||
3490 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3491 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3492 pinfo->discovery_retries)))
3493 goto nla_put_failure;
3495 nla_nest_end(msg, pinfoattr);
3497 return genlmsg_end(msg, hdr);
3500 genlmsg_cancel(msg, hdr);
3504 static int nl80211_dump_mpath(struct sk_buff *skb,
3505 struct netlink_callback *cb)
3507 struct mpath_info pinfo;
3508 struct cfg80211_registered_device *dev;
3509 struct net_device *netdev;
3511 u8 next_hop[ETH_ALEN];
3512 int path_idx = cb->args[1];
3515 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3519 if (!dev->ops->dump_mpath) {
3524 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3530 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3537 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
3538 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3539 netdev, dst, next_hop,
3548 cb->args[1] = path_idx;
3551 nl80211_finish_netdev_dump(dev);
3555 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3559 struct net_device *dev = info->user_ptr[1];
3560 struct mpath_info pinfo;
3561 struct sk_buff *msg;
3563 u8 next_hop[ETH_ALEN];
3565 memset(&pinfo, 0, sizeof(pinfo));
3567 if (!info->attrs[NL80211_ATTR_MAC])
3570 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3572 if (!rdev->ops->get_mpath)
3575 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3578 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
3582 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3586 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
3587 dev, dst, next_hop, &pinfo) < 0) {
3592 return genlmsg_reply(msg, info);
3595 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3598 struct net_device *dev = info->user_ptr[1];
3600 u8 *next_hop = NULL;
3602 if (!info->attrs[NL80211_ATTR_MAC])
3605 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3608 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3609 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3611 if (!rdev->ops->change_mpath)
3614 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3617 return rdev_change_mpath(rdev, dev, dst, next_hop);
3620 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3623 struct net_device *dev = info->user_ptr[1];
3625 u8 *next_hop = NULL;
3627 if (!info->attrs[NL80211_ATTR_MAC])
3630 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3633 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3634 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3636 if (!rdev->ops->add_mpath)
3639 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3642 return rdev_add_mpath(rdev, dev, dst, next_hop);
3645 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3648 struct net_device *dev = info->user_ptr[1];
3651 if (info->attrs[NL80211_ATTR_MAC])
3652 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3654 if (!rdev->ops->del_mpath)
3657 return rdev_del_mpath(rdev, dev, dst);
3660 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3662 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3663 struct net_device *dev = info->user_ptr[1];
3664 struct bss_parameters params;
3666 memset(¶ms, 0, sizeof(params));
3667 /* default to not changing parameters */
3668 params.use_cts_prot = -1;
3669 params.use_short_preamble = -1;
3670 params.use_short_slot_time = -1;
3671 params.ap_isolate = -1;
3672 params.ht_opmode = -1;
3673 params.p2p_ctwindow = -1;
3674 params.p2p_opp_ps = -1;
3676 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3677 params.use_cts_prot =
3678 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3679 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3680 params.use_short_preamble =
3681 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3682 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3683 params.use_short_slot_time =
3684 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3685 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3686 params.basic_rates =
3687 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3688 params.basic_rates_len =
3689 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3691 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3692 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3693 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3695 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3697 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3698 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3700 params.p2p_ctwindow =
3701 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3702 if (params.p2p_ctwindow < 0)
3704 if (params.p2p_ctwindow != 0 &&
3705 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3709 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3712 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3714 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3717 params.p2p_opp_ps = tmp;
3718 if (params.p2p_opp_ps &&
3719 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3723 if (!rdev->ops->change_bss)
3726 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3727 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3730 return rdev_change_bss(rdev, dev, ¶ms);
3733 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3734 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3735 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3736 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3737 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3738 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3739 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3742 static int parse_reg_rule(struct nlattr *tb[],
3743 struct ieee80211_reg_rule *reg_rule)
3745 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3746 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3748 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3750 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3752 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3754 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3756 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3759 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3761 freq_range->start_freq_khz =
3762 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3763 freq_range->end_freq_khz =
3764 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3765 freq_range->max_bandwidth_khz =
3766 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3768 power_rule->max_eirp =
3769 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3771 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3772 power_rule->max_antenna_gain =
3773 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3778 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3782 enum nl80211_user_reg_hint_type user_reg_hint_type;
3785 * You should only get this when cfg80211 hasn't yet initialized
3786 * completely when built-in to the kernel right between the time
3787 * window between nl80211_init() and regulatory_init(), if that is
3790 mutex_lock(&cfg80211_mutex);
3791 if (unlikely(!cfg80211_regdomain)) {
3792 mutex_unlock(&cfg80211_mutex);
3793 return -EINPROGRESS;
3795 mutex_unlock(&cfg80211_mutex);
3797 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3800 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3802 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3803 user_reg_hint_type =
3804 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3806 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3808 switch (user_reg_hint_type) {
3809 case NL80211_USER_REG_HINT_USER:
3810 case NL80211_USER_REG_HINT_CELL_BASE:
3816 r = regulatory_hint_user(data, user_reg_hint_type);
3821 static int nl80211_get_mesh_config(struct sk_buff *skb,
3822 struct genl_info *info)
3824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3825 struct net_device *dev = info->user_ptr[1];
3826 struct wireless_dev *wdev = dev->ieee80211_ptr;
3827 struct mesh_config cur_params;
3830 struct nlattr *pinfoattr;
3831 struct sk_buff *msg;
3833 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3836 if (!rdev->ops->get_mesh_config)
3840 /* If not connected, get default parameters */
3841 if (!wdev->mesh_id_len)
3842 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3844 err = rdev_get_mesh_config(rdev, dev, &cur_params);
3850 /* Draw up a netlink message to send back */
3851 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3854 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3855 NL80211_CMD_GET_MESH_CONFIG);
3858 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3860 goto nla_put_failure;
3861 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3862 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3863 cur_params.dot11MeshRetryTimeout) ||
3864 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3865 cur_params.dot11MeshConfirmTimeout) ||
3866 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3867 cur_params.dot11MeshHoldingTimeout) ||
3868 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3869 cur_params.dot11MeshMaxPeerLinks) ||
3870 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3871 cur_params.dot11MeshMaxRetries) ||
3872 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3873 cur_params.dot11MeshTTL) ||
3874 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3875 cur_params.element_ttl) ||
3876 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3877 cur_params.auto_open_plinks) ||
3878 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3879 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3880 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3881 cur_params.dot11MeshHWMPmaxPREQretries) ||
3882 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3883 cur_params.path_refresh_time) ||
3884 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3885 cur_params.min_discovery_timeout) ||
3886 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3887 cur_params.dot11MeshHWMPactivePathTimeout) ||
3888 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3889 cur_params.dot11MeshHWMPpreqMinInterval) ||
3890 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3891 cur_params.dot11MeshHWMPperrMinInterval) ||
3892 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3893 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3894 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3895 cur_params.dot11MeshHWMPRootMode) ||
3896 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3897 cur_params.dot11MeshHWMPRannInterval) ||
3898 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3899 cur_params.dot11MeshGateAnnouncementProtocol) ||
3900 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3901 cur_params.dot11MeshForwarding) ||
3902 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3903 cur_params.rssi_threshold) ||
3904 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3905 cur_params.ht_opmode) ||
3906 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3907 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3908 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3909 cur_params.dot11MeshHWMProotInterval) ||
3910 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3911 cur_params.dot11MeshHWMPconfirmationInterval))
3912 goto nla_put_failure;
3913 nla_nest_end(msg, pinfoattr);
3914 genlmsg_end(msg, hdr);
3915 return genlmsg_reply(msg, info);
3918 genlmsg_cancel(msg, hdr);
3924 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3925 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3926 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3927 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3928 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3929 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3930 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3931 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3932 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3933 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3934 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3935 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3936 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3937 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3938 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3939 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3940 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3941 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3942 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3943 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3944 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3945 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3946 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3947 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3948 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3949 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3952 static const struct nla_policy
3953 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3954 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3955 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3956 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3957 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3958 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3959 .len = IEEE80211_MAX_DATA_LEN },
3960 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3963 static int nl80211_parse_mesh_config(struct genl_info *info,
3964 struct mesh_config *cfg,
3967 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3970 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3972 if (table[attr_num]) {\
3973 cfg->param = nla_fn(table[attr_num]); \
3974 mask |= (1 << (attr_num - 1)); \
3979 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3981 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3982 info->attrs[NL80211_ATTR_MESH_CONFIG],
3983 nl80211_meshconf_params_policy))
3986 /* This makes sure that there aren't more than 32 mesh config
3987 * parameters (otherwise our bitfield scheme would not work.) */
3988 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3990 /* Fill in the params struct */
3991 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3992 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3994 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3995 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3997 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3998 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4000 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
4001 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4003 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
4004 mask, NL80211_MESHCONF_MAX_RETRIES,
4006 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
4007 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4008 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
4009 mask, NL80211_MESHCONF_ELEMENT_TTL,
4011 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
4012 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4014 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
4015 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4017 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
4018 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4020 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
4021 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4023 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
4024 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4026 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
4027 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4029 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4030 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4032 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4033 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4035 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4036 dot11MeshHWMPnetDiameterTraversalTime, mask,
4037 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4039 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
4040 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
4041 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
4042 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4044 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4045 dot11MeshGateAnnouncementProtocol, mask,
4046 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4048 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
4049 mask, NL80211_MESHCONF_FORWARDING,
4051 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
4052 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4054 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
4055 mask, NL80211_MESHCONF_HT_OPMODE,
4057 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4059 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4061 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
4062 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4064 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4065 dot11MeshHWMPconfirmationInterval, mask,
4066 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4073 #undef FILL_IN_MESH_PARAM_IF_SET
4076 static int nl80211_parse_mesh_setup(struct genl_info *info,
4077 struct mesh_setup *setup)
4079 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4081 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4083 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4084 info->attrs[NL80211_ATTR_MESH_SETUP],
4085 nl80211_mesh_setup_params_policy))
4088 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4089 setup->sync_method =
4090 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4091 IEEE80211_SYNC_METHOD_VENDOR :
4092 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4094 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4095 setup->path_sel_proto =
4096 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4097 IEEE80211_PATH_PROTOCOL_VENDOR :
4098 IEEE80211_PATH_PROTOCOL_HWMP;
4100 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4101 setup->path_metric =
4102 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4103 IEEE80211_PATH_METRIC_VENDOR :
4104 IEEE80211_PATH_METRIC_AIRTIME;
4107 if (tb[NL80211_MESH_SETUP_IE]) {
4108 struct nlattr *ieattr =
4109 tb[NL80211_MESH_SETUP_IE];
4110 if (!is_valid_ie_attr(ieattr))
4112 setup->ie = nla_data(ieattr);
4113 setup->ie_len = nla_len(ieattr);
4115 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4116 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4121 static int nl80211_update_mesh_config(struct sk_buff *skb,
4122 struct genl_info *info)
4124 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4125 struct net_device *dev = info->user_ptr[1];
4126 struct wireless_dev *wdev = dev->ieee80211_ptr;
4127 struct mesh_config cfg;
4131 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4134 if (!rdev->ops->update_mesh_config)
4137 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4142 if (!wdev->mesh_id_len)
4146 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4153 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4155 struct sk_buff *msg;
4157 struct nlattr *nl_reg_rules;
4161 mutex_lock(&cfg80211_mutex);
4163 if (!cfg80211_regdomain)
4166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4172 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4173 NL80211_CMD_GET_REG);
4177 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
4178 cfg80211_regdomain->alpha2) ||
4179 (cfg80211_regdomain->dfs_region &&
4180 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
4181 cfg80211_regdomain->dfs_region)))
4182 goto nla_put_failure;
4184 if (reg_last_request_cell_base() &&
4185 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4186 NL80211_USER_REG_HINT_CELL_BASE))
4187 goto nla_put_failure;
4189 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4191 goto nla_put_failure;
4193 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
4194 struct nlattr *nl_reg_rule;
4195 const struct ieee80211_reg_rule *reg_rule;
4196 const struct ieee80211_freq_range *freq_range;
4197 const struct ieee80211_power_rule *power_rule;
4199 reg_rule = &cfg80211_regdomain->reg_rules[i];
4200 freq_range = ®_rule->freq_range;
4201 power_rule = ®_rule->power_rule;
4203 nl_reg_rule = nla_nest_start(msg, i);
4205 goto nla_put_failure;
4207 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4209 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4210 freq_range->start_freq_khz) ||
4211 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4212 freq_range->end_freq_khz) ||
4213 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4214 freq_range->max_bandwidth_khz) ||
4215 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4216 power_rule->max_antenna_gain) ||
4217 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4218 power_rule->max_eirp))
4219 goto nla_put_failure;
4221 nla_nest_end(msg, nl_reg_rule);
4224 nla_nest_end(msg, nl_reg_rules);
4226 genlmsg_end(msg, hdr);
4227 err = genlmsg_reply(msg, info);
4231 genlmsg_cancel(msg, hdr);
4236 mutex_unlock(&cfg80211_mutex);
4240 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4242 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4243 struct nlattr *nl_reg_rule;
4244 char *alpha2 = NULL;
4245 int rem_reg_rules = 0, r = 0;
4246 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4248 struct ieee80211_regdomain *rd = NULL;
4250 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4253 if (!info->attrs[NL80211_ATTR_REG_RULES])
4256 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4258 if (info->attrs[NL80211_ATTR_DFS_REGION])
4259 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4261 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4264 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4268 mutex_lock(&cfg80211_mutex);
4270 if (!reg_is_valid_request(alpha2)) {
4275 size_of_regd = sizeof(struct ieee80211_regdomain) +
4276 (num_rules * sizeof(struct ieee80211_reg_rule));
4278 rd = kzalloc(size_of_regd, GFP_KERNEL);
4284 rd->n_reg_rules = num_rules;
4285 rd->alpha2[0] = alpha2[0];
4286 rd->alpha2[1] = alpha2[1];
4289 * Disable DFS master mode if the DFS region was
4290 * not supported or known on this kernel.
4292 if (reg_supported_dfs_region(dfs_region))
4293 rd->dfs_region = dfs_region;
4295 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4297 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4298 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4300 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4306 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4312 BUG_ON(rule_idx != num_rules);
4316 mutex_unlock(&cfg80211_mutex);
4321 mutex_unlock(&cfg80211_mutex);
4326 static int validate_scan_freqs(struct nlattr *freqs)
4328 struct nlattr *attr1, *attr2;
4329 int n_channels = 0, tmp1, tmp2;
4331 nla_for_each_nested(attr1, freqs, tmp1) {
4334 * Some hardware has a limited channel list for
4335 * scanning, and it is pretty much nonsensical
4336 * to scan for a channel twice, so disallow that
4337 * and don't require drivers to check that the
4338 * channel list they get isn't longer than what
4339 * they can scan, as long as they can scan all
4340 * the channels they registered at once.
4342 nla_for_each_nested(attr2, freqs, tmp2)
4343 if (attr1 != attr2 &&
4344 nla_get_u32(attr1) == nla_get_u32(attr2))
4351 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4354 struct wireless_dev *wdev = info->user_ptr[1];
4355 struct cfg80211_scan_request *request;
4356 struct nlattr *attr;
4357 struct wiphy *wiphy;
4358 int err, tmp, n_ssids = 0, n_channels, i;
4361 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4364 wiphy = &rdev->wiphy;
4366 if (!rdev->ops->scan)
4372 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4373 n_channels = validate_scan_freqs(
4374 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4378 enum ieee80211_band band;
4381 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4382 if (wiphy->bands[band])
4383 n_channels += wiphy->bands[band]->n_channels;
4386 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4387 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4390 if (n_ssids > wiphy->max_scan_ssids)
4393 if (info->attrs[NL80211_ATTR_IE])
4394 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4398 if (ie_len > wiphy->max_scan_ie_len)
4401 request = kzalloc(sizeof(*request)
4402 + sizeof(*request->ssids) * n_ssids
4403 + sizeof(*request->channels) * n_channels
4404 + ie_len, GFP_KERNEL);
4409 request->ssids = (void *)&request->channels[n_channels];
4410 request->n_ssids = n_ssids;
4413 request->ie = (void *)(request->ssids + n_ssids);
4415 request->ie = (void *)(request->channels + n_channels);
4419 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4420 /* user specified, bail out if channel not found */
4421 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4422 struct ieee80211_channel *chan;
4424 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4431 /* ignore disabled channels */
4432 if (chan->flags & IEEE80211_CHAN_DISABLED)
4435 request->channels[i] = chan;
4439 enum ieee80211_band band;
4442 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4444 if (!wiphy->bands[band])
4446 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4447 struct ieee80211_channel *chan;
4449 chan = &wiphy->bands[band]->channels[j];
4451 if (chan->flags & IEEE80211_CHAN_DISABLED)
4454 request->channels[i] = chan;
4465 request->n_channels = i;
4468 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4469 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4470 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4474 request->ssids[i].ssid_len = nla_len(attr);
4475 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4480 if (info->attrs[NL80211_ATTR_IE]) {
4481 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4482 memcpy((void *)request->ie,
4483 nla_data(info->attrs[NL80211_ATTR_IE]),
4487 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4488 if (wiphy->bands[i])
4490 (1 << wiphy->bands[i]->n_bitrates) - 1;
4492 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4493 nla_for_each_nested(attr,
4494 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4496 enum ieee80211_band band = nla_type(attr);
4498 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4502 err = ieee80211_get_ratemask(wiphy->bands[band],
4505 &request->rates[band]);
4511 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4512 request->flags = nla_get_u32(
4513 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4514 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4515 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4516 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4517 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4524 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4526 request->wdev = wdev;
4527 request->wiphy = &rdev->wiphy;
4528 request->scan_start = jiffies;
4530 rdev->scan_req = request;
4531 err = rdev_scan(rdev, request);
4534 nl80211_send_scan_start(rdev, wdev);
4536 dev_hold(wdev->netdev);
4539 rdev->scan_req = NULL;
4546 static int nl80211_start_sched_scan(struct sk_buff *skb,
4547 struct genl_info *info)
4549 struct cfg80211_sched_scan_request *request;
4550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4551 struct net_device *dev = info->user_ptr[1];
4552 struct nlattr *attr;
4553 struct wiphy *wiphy;
4554 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4556 enum ieee80211_band band;
4558 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4560 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4561 !rdev->ops->sched_scan_start)
4564 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4567 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4570 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4574 wiphy = &rdev->wiphy;
4576 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4577 n_channels = validate_scan_freqs(
4578 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4584 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4585 if (wiphy->bands[band])
4586 n_channels += wiphy->bands[band]->n_channels;
4589 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4590 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4594 if (n_ssids > wiphy->max_sched_scan_ssids)
4597 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4598 nla_for_each_nested(attr,
4599 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4603 if (n_match_sets > wiphy->max_match_sets)
4606 if (info->attrs[NL80211_ATTR_IE])
4607 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4611 if (ie_len > wiphy->max_sched_scan_ie_len)
4614 mutex_lock(&rdev->sched_scan_mtx);
4616 if (rdev->sched_scan_req) {
4621 request = kzalloc(sizeof(*request)
4622 + sizeof(*request->ssids) * n_ssids
4623 + sizeof(*request->match_sets) * n_match_sets
4624 + sizeof(*request->channels) * n_channels
4625 + ie_len, GFP_KERNEL);
4632 request->ssids = (void *)&request->channels[n_channels];
4633 request->n_ssids = n_ssids;
4636 request->ie = (void *)(request->ssids + n_ssids);
4638 request->ie = (void *)(request->channels + n_channels);
4643 request->match_sets = (void *)(request->ie + ie_len);
4644 else if (request->ssids)
4645 request->match_sets =
4646 (void *)(request->ssids + n_ssids);
4648 request->match_sets =
4649 (void *)(request->channels + n_channels);
4651 request->n_match_sets = n_match_sets;
4654 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4655 /* user specified, bail out if channel not found */
4656 nla_for_each_nested(attr,
4657 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4659 struct ieee80211_channel *chan;
4661 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4668 /* ignore disabled channels */
4669 if (chan->flags & IEEE80211_CHAN_DISABLED)
4672 request->channels[i] = chan;
4677 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4679 if (!wiphy->bands[band])
4681 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4682 struct ieee80211_channel *chan;
4684 chan = &wiphy->bands[band]->channels[j];
4686 if (chan->flags & IEEE80211_CHAN_DISABLED)
4689 request->channels[i] = chan;
4700 request->n_channels = i;
4703 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4704 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4706 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4710 request->ssids[i].ssid_len = nla_len(attr);
4711 memcpy(request->ssids[i].ssid, nla_data(attr),
4718 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4719 nla_for_each_nested(attr,
4720 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4722 struct nlattr *ssid, *rssi;
4724 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4725 nla_data(attr), nla_len(attr),
4726 nl80211_match_policy);
4727 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4729 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4733 memcpy(request->match_sets[i].ssid.ssid,
4734 nla_data(ssid), nla_len(ssid));
4735 request->match_sets[i].ssid.ssid_len =
4738 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4740 request->rssi_thold = nla_get_u32(rssi);
4742 request->rssi_thold =
4743 NL80211_SCAN_RSSI_THOLD_OFF;
4748 if (info->attrs[NL80211_ATTR_IE]) {
4749 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4750 memcpy((void *)request->ie,
4751 nla_data(info->attrs[NL80211_ATTR_IE]),
4755 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4756 request->flags = nla_get_u32(
4757 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4758 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4759 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4760 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4761 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4768 request->wiphy = &rdev->wiphy;
4769 request->interval = interval;
4770 request->scan_start = jiffies;
4772 err = rdev_sched_scan_start(rdev, dev, request);
4774 rdev->sched_scan_req = request;
4775 nl80211_send_sched_scan(rdev, dev,
4776 NL80211_CMD_START_SCHED_SCAN);
4783 mutex_unlock(&rdev->sched_scan_mtx);
4787 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4788 struct genl_info *info)
4790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4793 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4794 !rdev->ops->sched_scan_stop)
4797 mutex_lock(&rdev->sched_scan_mtx);
4798 err = __cfg80211_stop_sched_scan(rdev, false);
4799 mutex_unlock(&rdev->sched_scan_mtx);
4804 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4806 struct cfg80211_registered_device *rdev,
4807 struct wireless_dev *wdev,
4808 struct cfg80211_internal_bss *intbss)
4810 struct cfg80211_bss *res = &intbss->pub;
4814 ASSERT_WDEV_LOCK(wdev);
4816 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
4817 NL80211_CMD_NEW_SCAN_RESULTS);
4821 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4823 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4824 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4825 goto nla_put_failure;
4827 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4829 goto nla_put_failure;
4830 if ((!is_zero_ether_addr(res->bssid) &&
4831 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4832 (res->information_elements && res->len_information_elements &&
4833 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4834 res->len_information_elements,
4835 res->information_elements)) ||
4836 (res->beacon_ies && res->len_beacon_ies &&
4837 res->beacon_ies != res->information_elements &&
4838 nla_put(msg, NL80211_BSS_BEACON_IES,
4839 res->len_beacon_ies, res->beacon_ies)))
4840 goto nla_put_failure;
4842 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4843 goto nla_put_failure;
4844 if (res->beacon_interval &&
4845 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4846 goto nla_put_failure;
4847 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4848 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4849 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4850 jiffies_to_msecs(jiffies - intbss->ts)))
4851 goto nla_put_failure;
4853 switch (rdev->wiphy.signal_type) {
4854 case CFG80211_SIGNAL_TYPE_MBM:
4855 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4856 goto nla_put_failure;
4858 case CFG80211_SIGNAL_TYPE_UNSPEC:
4859 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4860 goto nla_put_failure;
4866 switch (wdev->iftype) {
4867 case NL80211_IFTYPE_P2P_CLIENT:
4868 case NL80211_IFTYPE_STATION:
4869 if (intbss == wdev->current_bss &&
4870 nla_put_u32(msg, NL80211_BSS_STATUS,
4871 NL80211_BSS_STATUS_ASSOCIATED))
4872 goto nla_put_failure;
4874 case NL80211_IFTYPE_ADHOC:
4875 if (intbss == wdev->current_bss &&
4876 nla_put_u32(msg, NL80211_BSS_STATUS,
4877 NL80211_BSS_STATUS_IBSS_JOINED))
4878 goto nla_put_failure;
4884 nla_nest_end(msg, bss);
4886 return genlmsg_end(msg, hdr);
4889 genlmsg_cancel(msg, hdr);
4893 static int nl80211_dump_scan(struct sk_buff *skb,
4894 struct netlink_callback *cb)
4896 struct cfg80211_registered_device *rdev;
4897 struct net_device *dev;
4898 struct cfg80211_internal_bss *scan;
4899 struct wireless_dev *wdev;
4900 int start = cb->args[1], idx = 0;
4903 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4907 wdev = dev->ieee80211_ptr;
4910 spin_lock_bh(&rdev->bss_lock);
4911 cfg80211_bss_expire(rdev);
4913 cb->seq = rdev->bss_generation;
4915 list_for_each_entry(scan, &rdev->bss_list, list) {
4918 if (nl80211_send_bss(skb, cb,
4919 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4920 rdev, wdev, scan) < 0) {
4926 spin_unlock_bh(&rdev->bss_lock);
4930 nl80211_finish_netdev_dump(rdev);
4935 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
4936 int flags, struct net_device *dev,
4937 struct survey_info *survey)
4940 struct nlattr *infoattr;
4942 hdr = nl80211hdr_put(msg, portid, seq, flags,
4943 NL80211_CMD_NEW_SURVEY_RESULTS);
4947 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4948 goto nla_put_failure;
4950 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4952 goto nla_put_failure;
4954 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4955 survey->channel->center_freq))
4956 goto nla_put_failure;
4958 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4959 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4960 goto nla_put_failure;
4961 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4962 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4963 goto nla_put_failure;
4964 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4965 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4966 survey->channel_time))
4967 goto nla_put_failure;
4968 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4969 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4970 survey->channel_time_busy))
4971 goto nla_put_failure;
4972 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4973 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4974 survey->channel_time_ext_busy))
4975 goto nla_put_failure;
4976 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4977 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4978 survey->channel_time_rx))
4979 goto nla_put_failure;
4980 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4981 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4982 survey->channel_time_tx))
4983 goto nla_put_failure;
4985 nla_nest_end(msg, infoattr);
4987 return genlmsg_end(msg, hdr);
4990 genlmsg_cancel(msg, hdr);
4994 static int nl80211_dump_survey(struct sk_buff *skb,
4995 struct netlink_callback *cb)
4997 struct survey_info survey;
4998 struct cfg80211_registered_device *dev;
4999 struct net_device *netdev;
5000 int survey_idx = cb->args[1];
5003 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5007 if (!dev->ops->dump_survey) {
5013 struct ieee80211_channel *chan;
5015 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
5021 /* Survey without a channel doesn't make sense */
5022 if (!survey.channel) {
5027 chan = ieee80211_get_channel(&dev->wiphy,
5028 survey.channel->center_freq);
5029 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5034 if (nl80211_send_survey(skb,
5035 NETLINK_CB(cb->skb).portid,
5036 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5044 cb->args[1] = survey_idx;
5047 nl80211_finish_netdev_dump(dev);
5051 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5053 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5054 NL80211_WPA_VERSION_2));
5057 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5060 struct net_device *dev = info->user_ptr[1];
5061 struct ieee80211_channel *chan;
5062 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5063 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5064 enum nl80211_auth_type auth_type;
5065 struct key_parse key;
5066 bool local_state_change;
5068 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5071 if (!info->attrs[NL80211_ATTR_MAC])
5074 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5077 if (!info->attrs[NL80211_ATTR_SSID])
5080 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5083 err = nl80211_parse_key(info, &key);
5088 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5090 if (!key.p.key || !key.p.key_len)
5092 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5093 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5094 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5095 key.p.key_len != WLAN_KEY_LEN_WEP104))
5107 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5108 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5117 if (!rdev->ops->auth)
5120 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5121 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5124 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5125 chan = ieee80211_get_channel(&rdev->wiphy,
5126 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5127 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5130 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5131 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5133 if (info->attrs[NL80211_ATTR_IE]) {
5134 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5135 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5138 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5139 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5142 if (auth_type == NL80211_AUTHTYPE_SAE &&
5143 !info->attrs[NL80211_ATTR_SAE_DATA])
5146 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5147 if (auth_type != NL80211_AUTHTYPE_SAE)
5149 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5150 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5151 /* need to include at least Auth Transaction and Status Code */
5152 if (sae_data_len < 4)
5156 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5159 * Since we no longer track auth state, ignore
5160 * requests to only change local state.
5162 if (local_state_change)
5165 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5166 ssid, ssid_len, ie, ie_len,
5167 key.p.key, key.p.key_len, key.idx,
5168 sae_data, sae_data_len);
5171 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5172 struct genl_info *info,
5173 struct cfg80211_crypto_settings *settings,
5176 memset(settings, 0, sizeof(*settings));
5178 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5180 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5182 proto = nla_get_u16(
5183 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5184 settings->control_port_ethertype = cpu_to_be16(proto);
5185 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5188 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5189 settings->control_port_no_encrypt = true;
5191 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5193 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5197 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5198 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5199 settings->n_ciphers_pairwise = len / sizeof(u32);
5201 if (len % sizeof(u32))
5204 if (settings->n_ciphers_pairwise > cipher_limit)
5207 memcpy(settings->ciphers_pairwise, data, len);
5209 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5210 if (!cfg80211_supported_cipher_suite(
5212 settings->ciphers_pairwise[i]))
5216 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5217 settings->cipher_group =
5218 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5219 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5220 settings->cipher_group))
5224 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5225 settings->wpa_versions =
5226 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5227 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5231 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5235 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5236 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5237 settings->n_akm_suites = len / sizeof(u32);
5239 if (len % sizeof(u32))
5242 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5245 memcpy(settings->akm_suites, data, len);
5251 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5254 struct net_device *dev = info->user_ptr[1];
5255 struct cfg80211_crypto_settings crypto;
5256 struct ieee80211_channel *chan;
5257 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5258 int err, ssid_len, ie_len = 0;
5259 bool use_mfp = false;
5261 struct ieee80211_ht_cap *ht_capa = NULL;
5262 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5264 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5267 if (!info->attrs[NL80211_ATTR_MAC] ||
5268 !info->attrs[NL80211_ATTR_SSID] ||
5269 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5272 if (!rdev->ops->assoc)
5275 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5276 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5279 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5281 chan = ieee80211_get_channel(&rdev->wiphy,
5282 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5283 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5286 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5287 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5289 if (info->attrs[NL80211_ATTR_IE]) {
5290 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5291 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5294 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5295 enum nl80211_mfp mfp =
5296 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5297 if (mfp == NL80211_MFP_REQUIRED)
5299 else if (mfp != NL80211_MFP_NO)
5303 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5304 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5306 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5307 flags |= ASSOC_REQ_DISABLE_HT;
5309 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5311 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5313 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5316 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5319 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5321 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5322 ssid, ssid_len, ie, ie_len, use_mfp,
5323 &crypto, flags, ht_capa,
5329 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5331 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5332 struct net_device *dev = info->user_ptr[1];
5333 const u8 *ie = NULL, *bssid;
5336 bool local_state_change;
5338 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5341 if (!info->attrs[NL80211_ATTR_MAC])
5344 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5347 if (!rdev->ops->deauth)
5350 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5351 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5354 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5356 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5357 if (reason_code == 0) {
5358 /* Reason Code 0 is reserved */
5362 if (info->attrs[NL80211_ATTR_IE]) {
5363 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5364 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5367 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5369 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5370 local_state_change);
5373 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5376 struct net_device *dev = info->user_ptr[1];
5377 const u8 *ie = NULL, *bssid;
5380 bool local_state_change;
5382 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5385 if (!info->attrs[NL80211_ATTR_MAC])
5388 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5391 if (!rdev->ops->disassoc)
5394 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5395 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5398 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5400 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5401 if (reason_code == 0) {
5402 /* Reason Code 0 is reserved */
5406 if (info->attrs[NL80211_ATTR_IE]) {
5407 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5408 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5411 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5413 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5414 local_state_change);
5418 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5419 int mcast_rate[IEEE80211_NUM_BANDS],
5422 struct wiphy *wiphy = &rdev->wiphy;
5426 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5427 struct ieee80211_supported_band *sband;
5429 sband = wiphy->bands[band];
5433 for (i = 0; i < sband->n_bitrates; i++) {
5434 if (sband->bitrates[i].bitrate == rateval) {
5435 mcast_rate[band] = i + 1;
5445 static int nl80211_join_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];
5449 struct cfg80211_ibss_params ibss;
5450 struct wiphy *wiphy;
5451 struct cfg80211_cached_keys *connkeys = NULL;
5454 memset(&ibss, 0, sizeof(ibss));
5456 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5459 if (!info->attrs[NL80211_ATTR_SSID] ||
5460 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5463 ibss.beacon_interval = 100;
5465 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5466 ibss.beacon_interval =
5467 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5468 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5472 if (!rdev->ops->join_ibss)
5475 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5478 wiphy = &rdev->wiphy;
5480 if (info->attrs[NL80211_ATTR_MAC]) {
5481 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5483 if (!is_valid_ether_addr(ibss.bssid))
5486 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5487 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5489 if (info->attrs[NL80211_ATTR_IE]) {
5490 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5491 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5494 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5498 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
5501 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5503 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5504 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
5507 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5508 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5510 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5512 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5514 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5515 struct ieee80211_supported_band *sband =
5516 wiphy->bands[ibss.chandef.chan->band];
5518 err = ieee80211_get_ratemask(sband, rates, n_rates,
5524 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5525 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5526 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5529 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5532 connkeys = nl80211_parse_connkeys(rdev,
5533 info->attrs[NL80211_ATTR_KEYS],
5535 if (IS_ERR(connkeys))
5536 return PTR_ERR(connkeys);
5538 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5546 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5548 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5554 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5557 struct net_device *dev = info->user_ptr[1];
5559 if (!rdev->ops->leave_ibss)
5562 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5565 return cfg80211_leave_ibss(rdev, dev, false);
5568 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5571 struct net_device *dev = info->user_ptr[1];
5572 int mcast_rate[IEEE80211_NUM_BANDS];
5576 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5577 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5580 if (!rdev->ops->set_mcast_rate)
5583 memset(mcast_rate, 0, sizeof(mcast_rate));
5585 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5588 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5589 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5592 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5598 #ifdef CONFIG_NL80211_TESTMODE
5599 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5603 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5605 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5608 if (!info->attrs[NL80211_ATTR_TESTDATA])
5612 if (rdev->ops->testmode_cmd) {
5613 rdev->testmode_info = info;
5614 err = rdev_testmode_cmd(rdev,
5615 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5616 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5617 rdev->testmode_info = NULL;
5623 static int nl80211_testmode_dump(struct sk_buff *skb,
5624 struct netlink_callback *cb)
5626 struct cfg80211_registered_device *rdev;
5634 * 0 is a valid index, but not valid for args[0],
5635 * so we need to offset by 1.
5637 phy_idx = cb->args[0] - 1;
5639 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5640 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5645 mutex_lock(&cfg80211_mutex);
5646 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5647 nl80211_fam.attrbuf);
5649 mutex_unlock(&cfg80211_mutex);
5650 return PTR_ERR(rdev);
5652 phy_idx = rdev->wiphy_idx;
5654 mutex_unlock(&cfg80211_mutex);
5656 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5658 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5662 data = nla_data((void *)cb->args[1]);
5663 data_len = nla_len((void *)cb->args[1]);
5666 mutex_lock(&cfg80211_mutex);
5667 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5669 mutex_unlock(&cfg80211_mutex);
5672 cfg80211_lock_rdev(rdev);
5673 mutex_unlock(&cfg80211_mutex);
5675 if (!rdev->ops->testmode_dump) {
5681 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
5682 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5683 NL80211_CMD_TESTMODE);
5684 struct nlattr *tmdata;
5686 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5687 genlmsg_cancel(skb, hdr);
5691 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5693 genlmsg_cancel(skb, hdr);
5696 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
5697 nla_nest_end(skb, tmdata);
5699 if (err == -ENOBUFS || err == -ENOENT) {
5700 genlmsg_cancel(skb, hdr);
5703 genlmsg_cancel(skb, hdr);
5707 genlmsg_end(skb, hdr);
5712 cb->args[0] = phy_idx + 1;
5714 cfg80211_unlock_rdev(rdev);
5718 static struct sk_buff *
5719 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5720 int approxlen, u32 portid, u32 seq, gfp_t gfp)
5722 struct sk_buff *skb;
5724 struct nlattr *data;
5726 skb = nlmsg_new(approxlen + 100, gfp);
5730 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
5736 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5737 goto nla_put_failure;
5738 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5740 ((void **)skb->cb)[0] = rdev;
5741 ((void **)skb->cb)[1] = hdr;
5742 ((void **)skb->cb)[2] = data;
5751 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5754 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5756 if (WARN_ON(!rdev->testmode_info))
5759 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5760 rdev->testmode_info->snd_portid,
5761 rdev->testmode_info->snd_seq,
5764 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5766 int cfg80211_testmode_reply(struct sk_buff *skb)
5768 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5769 void *hdr = ((void **)skb->cb)[1];
5770 struct nlattr *data = ((void **)skb->cb)[2];
5772 if (WARN_ON(!rdev->testmode_info)) {
5777 nla_nest_end(skb, data);
5778 genlmsg_end(skb, hdr);
5779 return genlmsg_reply(skb, rdev->testmode_info);
5781 EXPORT_SYMBOL(cfg80211_testmode_reply);
5783 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5784 int approxlen, gfp_t gfp)
5786 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5788 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5790 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5792 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5794 void *hdr = ((void **)skb->cb)[1];
5795 struct nlattr *data = ((void **)skb->cb)[2];
5797 nla_nest_end(skb, data);
5798 genlmsg_end(skb, hdr);
5799 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5801 EXPORT_SYMBOL(cfg80211_testmode_event);
5804 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5806 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5807 struct net_device *dev = info->user_ptr[1];
5808 struct cfg80211_connect_params connect;
5809 struct wiphy *wiphy;
5810 struct cfg80211_cached_keys *connkeys = NULL;
5813 memset(&connect, 0, sizeof(connect));
5815 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5818 if (!info->attrs[NL80211_ATTR_SSID] ||
5819 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5822 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5824 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5825 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5826 NL80211_CMD_CONNECT))
5829 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5831 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5833 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5834 NL80211_MAX_NR_CIPHER_SUITES);
5838 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5839 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5842 wiphy = &rdev->wiphy;
5844 connect.bg_scan_period = -1;
5845 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5846 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5847 connect.bg_scan_period =
5848 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5851 if (info->attrs[NL80211_ATTR_MAC])
5852 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5853 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5854 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5856 if (info->attrs[NL80211_ATTR_IE]) {
5857 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5858 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5861 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5863 ieee80211_get_channel(wiphy,
5864 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5865 if (!connect.channel ||
5866 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5870 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5871 connkeys = nl80211_parse_connkeys(rdev,
5872 info->attrs[NL80211_ATTR_KEYS], NULL);
5873 if (IS_ERR(connkeys))
5874 return PTR_ERR(connkeys);
5877 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5878 connect.flags |= ASSOC_REQ_DISABLE_HT;
5880 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5881 memcpy(&connect.ht_capa_mask,
5882 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5883 sizeof(connect.ht_capa_mask));
5885 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5886 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5890 memcpy(&connect.ht_capa,
5891 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5892 sizeof(connect.ht_capa));
5895 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5901 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5904 struct net_device *dev = info->user_ptr[1];
5907 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5908 reason = WLAN_REASON_DEAUTH_LEAVING;
5910 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5915 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5916 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5919 return cfg80211_disconnect(rdev, dev, reason, true);
5922 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5924 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5929 if (!info->attrs[NL80211_ATTR_PID])
5932 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5934 net = get_net_ns_by_pid(pid);
5936 return PTR_ERR(net);
5940 /* check if anything to do */
5941 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5942 err = cfg80211_switch_netns(rdev, net);
5948 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5951 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5952 struct cfg80211_pmksa *pmksa) = NULL;
5953 struct net_device *dev = info->user_ptr[1];
5954 struct cfg80211_pmksa pmksa;
5956 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5958 if (!info->attrs[NL80211_ATTR_MAC])
5961 if (!info->attrs[NL80211_ATTR_PMKID])
5964 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5965 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5967 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5968 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5971 switch (info->genlhdr->cmd) {
5972 case NL80211_CMD_SET_PMKSA:
5973 rdev_ops = rdev->ops->set_pmksa;
5975 case NL80211_CMD_DEL_PMKSA:
5976 rdev_ops = rdev->ops->del_pmksa;
5986 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5989 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5991 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5992 struct net_device *dev = info->user_ptr[1];
5994 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5995 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5998 if (!rdev->ops->flush_pmksa)
6001 return rdev_flush_pmksa(rdev, dev);
6004 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6007 struct net_device *dev = info->user_ptr[1];
6008 u8 action_code, dialog_token;
6012 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6013 !rdev->ops->tdls_mgmt)
6016 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6017 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6018 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6019 !info->attrs[NL80211_ATTR_IE] ||
6020 !info->attrs[NL80211_ATTR_MAC])
6023 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6024 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6025 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6026 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6028 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6029 dialog_token, status_code,
6030 nla_data(info->attrs[NL80211_ATTR_IE]),
6031 nla_len(info->attrs[NL80211_ATTR_IE]));
6034 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6037 struct net_device *dev = info->user_ptr[1];
6038 enum nl80211_tdls_operation operation;
6041 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6042 !rdev->ops->tdls_oper)
6045 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6046 !info->attrs[NL80211_ATTR_MAC])
6049 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6050 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6052 return rdev_tdls_oper(rdev, dev, peer, operation);
6055 static int nl80211_remain_on_channel(struct sk_buff *skb,
6056 struct genl_info *info)
6058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6059 struct wireless_dev *wdev = info->user_ptr[1];
6060 struct cfg80211_chan_def chandef;
6061 struct sk_buff *msg;
6067 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6068 !info->attrs[NL80211_ATTR_DURATION])
6071 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6073 if (!rdev->ops->remain_on_channel ||
6074 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6078 * We should be on that channel for at least a minimum amount of
6079 * time (10ms) but no longer than the driver supports.
6081 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6082 duration > rdev->wiphy.max_remain_on_channel_duration)
6085 err = nl80211_parse_chandef(rdev, info, &chandef);
6089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6093 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6094 NL80211_CMD_REMAIN_ON_CHANNEL);
6101 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6107 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6108 goto nla_put_failure;
6110 genlmsg_end(msg, hdr);
6112 return genlmsg_reply(msg, info);
6121 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6122 struct genl_info *info)
6124 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6125 struct wireless_dev *wdev = info->user_ptr[1];
6128 if (!info->attrs[NL80211_ATTR_COOKIE])
6131 if (!rdev->ops->cancel_remain_on_channel)
6134 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6136 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6139 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6140 u8 *rates, u8 rates_len)
6145 for (i = 0; i < rates_len; i++) {
6146 int rate = (rates[i] & 0x7f) * 5;
6148 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6149 struct ieee80211_rate *srate =
6150 &sband->bitrates[ridx];
6151 if (rate == srate->bitrate) {
6156 if (ridx == sband->n_bitrates)
6157 return 0; /* rate not found */
6163 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6164 u8 *rates, u8 rates_len,
6165 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6169 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6171 for (i = 0; i < rates_len; i++) {
6174 ridx = rates[i] / 8;
6175 rbit = BIT(rates[i] % 8);
6177 /* check validity */
6178 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6181 /* check availability */
6182 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6191 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
6192 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6193 .len = NL80211_MAX_SUPP_RATES },
6194 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6195 .len = NL80211_MAX_SUPP_HT_RATES },
6198 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6199 struct genl_info *info)
6201 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
6202 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6203 struct cfg80211_bitrate_mask mask;
6205 struct net_device *dev = info->user_ptr[1];
6206 struct nlattr *tx_rates;
6207 struct ieee80211_supported_band *sband;
6209 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6212 if (!rdev->ops->set_bitrate_mask)
6215 memset(&mask, 0, sizeof(mask));
6216 /* Default to all rates enabled */
6217 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6218 sband = rdev->wiphy.bands[i];
6219 mask.control[i].legacy =
6220 sband ? (1 << sband->n_bitrates) - 1 : 0;
6222 memcpy(mask.control[i].mcs,
6223 sband->ht_cap.mcs.rx_mask,
6224 sizeof(mask.control[i].mcs));
6226 memset(mask.control[i].mcs, 0,
6227 sizeof(mask.control[i].mcs));
6231 * The nested attribute uses enum nl80211_band as the index. This maps
6232 * directly to the enum ieee80211_band values used in cfg80211.
6234 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
6235 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6237 enum ieee80211_band band = nla_type(tx_rates);
6238 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6240 sband = rdev->wiphy.bands[band];
6243 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6244 nla_len(tx_rates), nl80211_txattr_policy);
6245 if (tb[NL80211_TXRATE_LEGACY]) {
6246 mask.control[band].legacy = rateset_to_mask(
6248 nla_data(tb[NL80211_TXRATE_LEGACY]),
6249 nla_len(tb[NL80211_TXRATE_LEGACY]));
6250 if ((mask.control[band].legacy == 0) &&
6251 nla_len(tb[NL80211_TXRATE_LEGACY]))
6254 if (tb[NL80211_TXRATE_MCS]) {
6255 if (!ht_rateset_to_mask(
6257 nla_data(tb[NL80211_TXRATE_MCS]),
6258 nla_len(tb[NL80211_TXRATE_MCS]),
6259 mask.control[band].mcs))
6263 if (mask.control[band].legacy == 0) {
6264 /* don't allow empty legacy rates if HT
6265 * is not even supported. */
6266 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6269 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6270 if (mask.control[band].mcs[i])
6273 /* legacy and mcs rates may not be both empty */
6274 if (i == IEEE80211_HT_MCS_MASK_LEN)
6279 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
6282 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6285 struct wireless_dev *wdev = info->user_ptr[1];
6286 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6288 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6291 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6292 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6294 switch (wdev->iftype) {
6295 case NL80211_IFTYPE_STATION:
6296 case NL80211_IFTYPE_ADHOC:
6297 case NL80211_IFTYPE_P2P_CLIENT:
6298 case NL80211_IFTYPE_AP:
6299 case NL80211_IFTYPE_AP_VLAN:
6300 case NL80211_IFTYPE_MESH_POINT:
6301 case NL80211_IFTYPE_P2P_GO:
6302 case NL80211_IFTYPE_P2P_DEVICE:
6308 /* not much point in registering if we can't reply */
6309 if (!rdev->ops->mgmt_tx)
6312 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
6313 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6314 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6317 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6320 struct wireless_dev *wdev = info->user_ptr[1];
6321 struct cfg80211_chan_def chandef;
6325 struct sk_buff *msg = NULL;
6326 unsigned int wait = 0;
6327 bool offchan, no_cck, dont_wait_for_ack;
6329 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6331 if (!info->attrs[NL80211_ATTR_FRAME])
6334 if (!rdev->ops->mgmt_tx)
6337 switch (wdev->iftype) {
6338 case NL80211_IFTYPE_STATION:
6339 case NL80211_IFTYPE_ADHOC:
6340 case NL80211_IFTYPE_P2P_CLIENT:
6341 case NL80211_IFTYPE_AP:
6342 case NL80211_IFTYPE_AP_VLAN:
6343 case NL80211_IFTYPE_MESH_POINT:
6344 case NL80211_IFTYPE_P2P_GO:
6345 case NL80211_IFTYPE_P2P_DEVICE:
6351 if (info->attrs[NL80211_ATTR_DURATION]) {
6352 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6354 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6357 * We should wait on the channel for at least a minimum amount
6358 * of time (10ms) but no longer than the driver supports.
6360 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6361 wait > rdev->wiphy.max_remain_on_channel_duration)
6366 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6368 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6371 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6373 err = nl80211_parse_chandef(rdev, info, &chandef);
6377 if (!dont_wait_for_ack) {
6378 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6382 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6391 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
6392 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6393 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6394 no_cck, dont_wait_for_ack, &cookie);
6399 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6400 goto nla_put_failure;
6402 genlmsg_end(msg, hdr);
6403 return genlmsg_reply(msg, info);
6415 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6418 struct wireless_dev *wdev = info->user_ptr[1];
6421 if (!info->attrs[NL80211_ATTR_COOKIE])
6424 if (!rdev->ops->mgmt_tx_cancel_wait)
6427 switch (wdev->iftype) {
6428 case NL80211_IFTYPE_STATION:
6429 case NL80211_IFTYPE_ADHOC:
6430 case NL80211_IFTYPE_P2P_CLIENT:
6431 case NL80211_IFTYPE_AP:
6432 case NL80211_IFTYPE_AP_VLAN:
6433 case NL80211_IFTYPE_P2P_GO:
6434 case NL80211_IFTYPE_P2P_DEVICE:
6440 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6442 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
6445 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6447 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6448 struct wireless_dev *wdev;
6449 struct net_device *dev = info->user_ptr[1];
6454 if (!info->attrs[NL80211_ATTR_PS_STATE])
6457 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6459 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6462 wdev = dev->ieee80211_ptr;
6464 if (!rdev->ops->set_power_mgmt)
6467 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6469 if (state == wdev->ps)
6472 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
6478 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6481 enum nl80211_ps_state ps_state;
6482 struct wireless_dev *wdev;
6483 struct net_device *dev = info->user_ptr[1];
6484 struct sk_buff *msg;
6488 wdev = dev->ieee80211_ptr;
6490 if (!rdev->ops->set_power_mgmt)
6493 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6497 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6498 NL80211_CMD_GET_POWER_SAVE);
6505 ps_state = NL80211_PS_ENABLED;
6507 ps_state = NL80211_PS_DISABLED;
6509 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6510 goto nla_put_failure;
6512 genlmsg_end(msg, hdr);
6513 return genlmsg_reply(msg, info);
6522 static struct nla_policy
6523 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6524 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6525 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6526 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6527 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6528 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6529 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6532 static int nl80211_set_cqm_txe(struct genl_info *info,
6533 u32 rate, u32 pkts, u32 intvl)
6535 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6536 struct wireless_dev *wdev;
6537 struct net_device *dev = info->user_ptr[1];
6539 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
6542 wdev = dev->ieee80211_ptr;
6544 if (!rdev->ops->set_cqm_txe_config)
6547 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6548 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6551 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
6554 static int nl80211_set_cqm_rssi(struct genl_info *info,
6555 s32 threshold, u32 hysteresis)
6557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6558 struct wireless_dev *wdev;
6559 struct net_device *dev = info->user_ptr[1];
6564 wdev = dev->ieee80211_ptr;
6566 if (!rdev->ops->set_cqm_rssi_config)
6569 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6570 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6573 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
6576 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6578 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6582 cqm = info->attrs[NL80211_ATTR_CQM];
6588 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6589 nl80211_attr_cqm_policy);
6593 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6594 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6597 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6598 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6599 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6600 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6601 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6602 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6603 u32 rate, pkts, intvl;
6604 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6605 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6606 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6607 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
6615 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6617 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6618 struct net_device *dev = info->user_ptr[1];
6619 struct mesh_config cfg;
6620 struct mesh_setup setup;
6623 /* start with default */
6624 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6625 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6627 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6628 /* and parse parameters if given */
6629 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6634 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6635 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6638 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6639 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6641 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6642 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6643 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6646 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6647 /* parse additional setup parameters if given */
6648 err = nl80211_parse_mesh_setup(info, &setup);
6653 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6654 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
6658 /* cfg80211_join_mesh() will sort it out */
6659 setup.chandef.chan = NULL;
6662 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6665 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6668 struct net_device *dev = info->user_ptr[1];
6670 return cfg80211_leave_mesh(rdev, dev);
6674 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6676 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6677 struct sk_buff *msg;
6680 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6683 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6687 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6688 NL80211_CMD_GET_WOWLAN);
6690 goto nla_put_failure;
6693 struct nlattr *nl_wowlan;
6695 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6697 goto nla_put_failure;
6699 if ((rdev->wowlan->any &&
6700 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6701 (rdev->wowlan->disconnect &&
6702 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6703 (rdev->wowlan->magic_pkt &&
6704 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6705 (rdev->wowlan->gtk_rekey_failure &&
6706 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6707 (rdev->wowlan->eap_identity_req &&
6708 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6709 (rdev->wowlan->four_way_handshake &&
6710 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6711 (rdev->wowlan->rfkill_release &&
6712 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6713 goto nla_put_failure;
6714 if (rdev->wowlan->n_patterns) {
6715 struct nlattr *nl_pats, *nl_pat;
6718 nl_pats = nla_nest_start(msg,
6719 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6721 goto nla_put_failure;
6723 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6724 nl_pat = nla_nest_start(msg, i + 1);
6726 goto nla_put_failure;
6727 pat_len = rdev->wowlan->patterns[i].pattern_len;
6728 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6729 DIV_ROUND_UP(pat_len, 8),
6730 rdev->wowlan->patterns[i].mask) ||
6731 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6733 rdev->wowlan->patterns[i].pattern))
6734 goto nla_put_failure;
6735 nla_nest_end(msg, nl_pat);
6737 nla_nest_end(msg, nl_pats);
6740 nla_nest_end(msg, nl_wowlan);
6743 genlmsg_end(msg, hdr);
6744 return genlmsg_reply(msg, info);
6751 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6754 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6755 struct cfg80211_wowlan new_triggers = {};
6756 struct cfg80211_wowlan *ntrig;
6757 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6759 bool prev_enabled = rdev->wowlan;
6761 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6764 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6765 cfg80211_rdev_free_wowlan(rdev);
6766 rdev->wowlan = NULL;
6770 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6771 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6772 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6773 nl80211_wowlan_policy);
6777 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6778 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6780 new_triggers.any = true;
6783 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6784 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6786 new_triggers.disconnect = true;
6789 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6790 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6792 new_triggers.magic_pkt = true;
6795 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6798 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6799 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6801 new_triggers.gtk_rekey_failure = true;
6804 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6805 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6807 new_triggers.eap_identity_req = true;
6810 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6811 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6813 new_triggers.four_way_handshake = true;
6816 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6817 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6819 new_triggers.rfkill_release = true;
6822 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6825 int rem, pat_len, mask_len;
6826 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6828 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6831 if (n_patterns > wowlan->n_patterns)
6834 new_triggers.patterns = kcalloc(n_patterns,
6835 sizeof(new_triggers.patterns[0]),
6837 if (!new_triggers.patterns)
6840 new_triggers.n_patterns = n_patterns;
6843 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6845 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6846 nla_data(pat), nla_len(pat), NULL);
6848 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6849 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6851 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6852 mask_len = DIV_ROUND_UP(pat_len, 8);
6853 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6856 if (pat_len > wowlan->pattern_max_len ||
6857 pat_len < wowlan->pattern_min_len)
6860 new_triggers.patterns[i].mask =
6861 kmalloc(mask_len + pat_len, GFP_KERNEL);
6862 if (!new_triggers.patterns[i].mask) {
6866 new_triggers.patterns[i].pattern =
6867 new_triggers.patterns[i].mask + mask_len;
6868 memcpy(new_triggers.patterns[i].mask,
6869 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6871 new_triggers.patterns[i].pattern_len = pat_len;
6872 memcpy(new_triggers.patterns[i].pattern,
6873 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6879 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6884 cfg80211_rdev_free_wowlan(rdev);
6885 rdev->wowlan = ntrig;
6888 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6889 rdev_set_wakeup(rdev, rdev->wowlan);
6893 for (i = 0; i < new_triggers.n_patterns; i++)
6894 kfree(new_triggers.patterns[i].mask);
6895 kfree(new_triggers.patterns);
6900 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6903 struct net_device *dev = info->user_ptr[1];
6904 struct wireless_dev *wdev = dev->ieee80211_ptr;
6905 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6906 struct cfg80211_gtk_rekey_data rekey_data;
6909 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6912 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6913 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6914 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6915 nl80211_rekey_policy);
6919 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6921 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6923 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6926 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6928 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6930 memcpy(rekey_data.replay_ctr,
6931 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6932 NL80211_REPLAY_CTR_LEN);
6935 if (!wdev->current_bss) {
6940 if (!rdev->ops->set_rekey_data) {
6945 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
6951 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6952 struct genl_info *info)
6954 struct net_device *dev = info->user_ptr[1];
6955 struct wireless_dev *wdev = dev->ieee80211_ptr;
6957 if (wdev->iftype != NL80211_IFTYPE_AP &&
6958 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6961 if (wdev->ap_unexpected_nlportid)
6964 wdev->ap_unexpected_nlportid = info->snd_portid;
6968 static int nl80211_probe_client(struct sk_buff *skb,
6969 struct genl_info *info)
6971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6972 struct net_device *dev = info->user_ptr[1];
6973 struct wireless_dev *wdev = dev->ieee80211_ptr;
6974 struct sk_buff *msg;
6980 if (wdev->iftype != NL80211_IFTYPE_AP &&
6981 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6984 if (!info->attrs[NL80211_ATTR_MAC])
6987 if (!rdev->ops->probe_client)
6990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6994 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6995 NL80211_CMD_PROBE_CLIENT);
7002 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7004 err = rdev_probe_client(rdev, dev, addr, &cookie);
7008 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7009 goto nla_put_failure;
7011 genlmsg_end(msg, hdr);
7013 return genlmsg_reply(msg, info);
7022 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7025 struct cfg80211_beacon_registration *reg, *nreg;
7028 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7031 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7035 /* First, check if already registered. */
7036 spin_lock_bh(&rdev->beacon_registrations_lock);
7037 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7038 if (reg->nlportid == info->snd_portid) {
7043 /* Add it to the list */
7044 nreg->nlportid = info->snd_portid;
7045 list_add(&nreg->list, &rdev->beacon_registrations);
7047 spin_unlock_bh(&rdev->beacon_registrations_lock);
7051 spin_unlock_bh(&rdev->beacon_registrations_lock);
7056 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7059 struct wireless_dev *wdev = info->user_ptr[1];
7062 if (!rdev->ops->start_p2p_device)
7065 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7068 if (wdev->p2p_started)
7071 mutex_lock(&rdev->devlist_mtx);
7072 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7073 mutex_unlock(&rdev->devlist_mtx);
7077 err = rdev_start_p2p_device(rdev, wdev);
7081 wdev->p2p_started = true;
7082 mutex_lock(&rdev->devlist_mtx);
7084 mutex_unlock(&rdev->devlist_mtx);
7089 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7092 struct wireless_dev *wdev = info->user_ptr[1];
7094 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7097 if (!rdev->ops->stop_p2p_device)
7100 if (!wdev->p2p_started)
7103 rdev_stop_p2p_device(rdev, wdev);
7104 wdev->p2p_started = false;
7106 mutex_lock(&rdev->devlist_mtx);
7108 mutex_unlock(&rdev->devlist_mtx);
7110 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7111 rdev->scan_req->aborted = true;
7112 ___cfg80211_scan_done(rdev, true);
7118 #define NL80211_FLAG_NEED_WIPHY 0x01
7119 #define NL80211_FLAG_NEED_NETDEV 0x02
7120 #define NL80211_FLAG_NEED_RTNL 0x04
7121 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7122 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7123 NL80211_FLAG_CHECK_NETDEV_UP)
7124 #define NL80211_FLAG_NEED_WDEV 0x10
7125 /* If a netdev is associated, it must be UP, P2P must be started */
7126 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7127 NL80211_FLAG_CHECK_NETDEV_UP)
7129 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7130 struct genl_info *info)
7132 struct cfg80211_registered_device *rdev;
7133 struct wireless_dev *wdev;
7134 struct net_device *dev;
7135 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7140 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
7141 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
7145 return PTR_ERR(rdev);
7147 info->user_ptr[0] = rdev;
7148 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7149 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7150 mutex_lock(&cfg80211_mutex);
7151 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7154 mutex_unlock(&cfg80211_mutex);
7157 return PTR_ERR(wdev);
7161 rdev = wiphy_to_dev(wdev->wiphy);
7163 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7165 mutex_unlock(&cfg80211_mutex);
7171 info->user_ptr[1] = dev;
7173 info->user_ptr[1] = wdev;
7177 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7178 !netif_running(dev)) {
7179 mutex_unlock(&cfg80211_mutex);
7186 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7187 if (!wdev->p2p_started) {
7188 mutex_unlock(&cfg80211_mutex);
7195 cfg80211_lock_rdev(rdev);
7197 mutex_unlock(&cfg80211_mutex);
7199 info->user_ptr[0] = rdev;
7205 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7206 struct genl_info *info)
7208 if (info->user_ptr[0])
7209 cfg80211_unlock_rdev(info->user_ptr[0]);
7210 if (info->user_ptr[1]) {
7211 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7212 struct wireless_dev *wdev = info->user_ptr[1];
7215 dev_put(wdev->netdev);
7217 dev_put(info->user_ptr[1]);
7220 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7224 static struct genl_ops nl80211_ops[] = {
7226 .cmd = NL80211_CMD_GET_WIPHY,
7227 .doit = nl80211_get_wiphy,
7228 .dumpit = nl80211_dump_wiphy,
7229 .policy = nl80211_policy,
7230 /* can be retrieved by unprivileged users */
7231 .internal_flags = NL80211_FLAG_NEED_WIPHY,
7234 .cmd = NL80211_CMD_SET_WIPHY,
7235 .doit = nl80211_set_wiphy,
7236 .policy = nl80211_policy,
7237 .flags = GENL_ADMIN_PERM,
7238 .internal_flags = NL80211_FLAG_NEED_RTNL,
7241 .cmd = NL80211_CMD_GET_INTERFACE,
7242 .doit = nl80211_get_interface,
7243 .dumpit = nl80211_dump_interface,
7244 .policy = nl80211_policy,
7245 /* can be retrieved by unprivileged users */
7246 .internal_flags = NL80211_FLAG_NEED_WDEV,
7249 .cmd = NL80211_CMD_SET_INTERFACE,
7250 .doit = nl80211_set_interface,
7251 .policy = nl80211_policy,
7252 .flags = GENL_ADMIN_PERM,
7253 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7254 NL80211_FLAG_NEED_RTNL,
7257 .cmd = NL80211_CMD_NEW_INTERFACE,
7258 .doit = nl80211_new_interface,
7259 .policy = nl80211_policy,
7260 .flags = GENL_ADMIN_PERM,
7261 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7262 NL80211_FLAG_NEED_RTNL,
7265 .cmd = NL80211_CMD_DEL_INTERFACE,
7266 .doit = nl80211_del_interface,
7267 .policy = nl80211_policy,
7268 .flags = GENL_ADMIN_PERM,
7269 .internal_flags = NL80211_FLAG_NEED_WDEV |
7270 NL80211_FLAG_NEED_RTNL,
7273 .cmd = NL80211_CMD_GET_KEY,
7274 .doit = nl80211_get_key,
7275 .policy = nl80211_policy,
7276 .flags = GENL_ADMIN_PERM,
7277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7278 NL80211_FLAG_NEED_RTNL,
7281 .cmd = NL80211_CMD_SET_KEY,
7282 .doit = nl80211_set_key,
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_NEW_KEY,
7290 .doit = nl80211_new_key,
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_DEL_KEY,
7298 .doit = nl80211_del_key,
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_SET_BEACON,
7306 .policy = nl80211_policy,
7307 .flags = GENL_ADMIN_PERM,
7308 .doit = nl80211_set_beacon,
7309 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7310 NL80211_FLAG_NEED_RTNL,
7313 .cmd = NL80211_CMD_START_AP,
7314 .policy = nl80211_policy,
7315 .flags = GENL_ADMIN_PERM,
7316 .doit = nl80211_start_ap,
7317 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7318 NL80211_FLAG_NEED_RTNL,
7321 .cmd = NL80211_CMD_STOP_AP,
7322 .policy = nl80211_policy,
7323 .flags = GENL_ADMIN_PERM,
7324 .doit = nl80211_stop_ap,
7325 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7326 NL80211_FLAG_NEED_RTNL,
7329 .cmd = NL80211_CMD_GET_STATION,
7330 .doit = nl80211_get_station,
7331 .dumpit = nl80211_dump_station,
7332 .policy = nl80211_policy,
7333 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7334 NL80211_FLAG_NEED_RTNL,
7337 .cmd = NL80211_CMD_SET_STATION,
7338 .doit = nl80211_set_station,
7339 .policy = nl80211_policy,
7340 .flags = GENL_ADMIN_PERM,
7341 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7342 NL80211_FLAG_NEED_RTNL,
7345 .cmd = NL80211_CMD_NEW_STATION,
7346 .doit = nl80211_new_station,
7347 .policy = nl80211_policy,
7348 .flags = GENL_ADMIN_PERM,
7349 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7350 NL80211_FLAG_NEED_RTNL,
7353 .cmd = NL80211_CMD_DEL_STATION,
7354 .doit = nl80211_del_station,
7355 .policy = nl80211_policy,
7356 .flags = GENL_ADMIN_PERM,
7357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7358 NL80211_FLAG_NEED_RTNL,
7361 .cmd = NL80211_CMD_GET_MPATH,
7362 .doit = nl80211_get_mpath,
7363 .dumpit = nl80211_dump_mpath,
7364 .policy = nl80211_policy,
7365 .flags = GENL_ADMIN_PERM,
7366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7367 NL80211_FLAG_NEED_RTNL,
7370 .cmd = NL80211_CMD_SET_MPATH,
7371 .doit = nl80211_set_mpath,
7372 .policy = nl80211_policy,
7373 .flags = GENL_ADMIN_PERM,
7374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7375 NL80211_FLAG_NEED_RTNL,
7378 .cmd = NL80211_CMD_NEW_MPATH,
7379 .doit = nl80211_new_mpath,
7380 .policy = nl80211_policy,
7381 .flags = GENL_ADMIN_PERM,
7382 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7383 NL80211_FLAG_NEED_RTNL,
7386 .cmd = NL80211_CMD_DEL_MPATH,
7387 .doit = nl80211_del_mpath,
7388 .policy = nl80211_policy,
7389 .flags = GENL_ADMIN_PERM,
7390 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7391 NL80211_FLAG_NEED_RTNL,
7394 .cmd = NL80211_CMD_SET_BSS,
7395 .doit = nl80211_set_bss,
7396 .policy = nl80211_policy,
7397 .flags = GENL_ADMIN_PERM,
7398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7399 NL80211_FLAG_NEED_RTNL,
7402 .cmd = NL80211_CMD_GET_REG,
7403 .doit = nl80211_get_reg,
7404 .policy = nl80211_policy,
7405 /* can be retrieved by unprivileged users */
7408 .cmd = NL80211_CMD_SET_REG,
7409 .doit = nl80211_set_reg,
7410 .policy = nl80211_policy,
7411 .flags = GENL_ADMIN_PERM,
7414 .cmd = NL80211_CMD_REQ_SET_REG,
7415 .doit = nl80211_req_set_reg,
7416 .policy = nl80211_policy,
7417 .flags = GENL_ADMIN_PERM,
7420 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7421 .doit = nl80211_get_mesh_config,
7422 .policy = nl80211_policy,
7423 /* can be retrieved by unprivileged users */
7424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7425 NL80211_FLAG_NEED_RTNL,
7428 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7429 .doit = nl80211_update_mesh_config,
7430 .policy = nl80211_policy,
7431 .flags = GENL_ADMIN_PERM,
7432 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7433 NL80211_FLAG_NEED_RTNL,
7436 .cmd = NL80211_CMD_TRIGGER_SCAN,
7437 .doit = nl80211_trigger_scan,
7438 .policy = nl80211_policy,
7439 .flags = GENL_ADMIN_PERM,
7440 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7441 NL80211_FLAG_NEED_RTNL,
7444 .cmd = NL80211_CMD_GET_SCAN,
7445 .policy = nl80211_policy,
7446 .dumpit = nl80211_dump_scan,
7449 .cmd = NL80211_CMD_START_SCHED_SCAN,
7450 .doit = nl80211_start_sched_scan,
7451 .policy = nl80211_policy,
7452 .flags = GENL_ADMIN_PERM,
7453 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7454 NL80211_FLAG_NEED_RTNL,
7457 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7458 .doit = nl80211_stop_sched_scan,
7459 .policy = nl80211_policy,
7460 .flags = GENL_ADMIN_PERM,
7461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7462 NL80211_FLAG_NEED_RTNL,
7465 .cmd = NL80211_CMD_AUTHENTICATE,
7466 .doit = nl80211_authenticate,
7467 .policy = nl80211_policy,
7468 .flags = GENL_ADMIN_PERM,
7469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7470 NL80211_FLAG_NEED_RTNL,
7473 .cmd = NL80211_CMD_ASSOCIATE,
7474 .doit = nl80211_associate,
7475 .policy = nl80211_policy,
7476 .flags = GENL_ADMIN_PERM,
7477 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7478 NL80211_FLAG_NEED_RTNL,
7481 .cmd = NL80211_CMD_DEAUTHENTICATE,
7482 .doit = nl80211_deauthenticate,
7483 .policy = nl80211_policy,
7484 .flags = GENL_ADMIN_PERM,
7485 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7486 NL80211_FLAG_NEED_RTNL,
7489 .cmd = NL80211_CMD_DISASSOCIATE,
7490 .doit = nl80211_disassociate,
7491 .policy = nl80211_policy,
7492 .flags = GENL_ADMIN_PERM,
7493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7494 NL80211_FLAG_NEED_RTNL,
7497 .cmd = NL80211_CMD_JOIN_IBSS,
7498 .doit = nl80211_join_ibss,
7499 .policy = nl80211_policy,
7500 .flags = GENL_ADMIN_PERM,
7501 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7502 NL80211_FLAG_NEED_RTNL,
7505 .cmd = NL80211_CMD_LEAVE_IBSS,
7506 .doit = nl80211_leave_ibss,
7507 .policy = nl80211_policy,
7508 .flags = GENL_ADMIN_PERM,
7509 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7510 NL80211_FLAG_NEED_RTNL,
7512 #ifdef CONFIG_NL80211_TESTMODE
7514 .cmd = NL80211_CMD_TESTMODE,
7515 .doit = nl80211_testmode_do,
7516 .dumpit = nl80211_testmode_dump,
7517 .policy = nl80211_policy,
7518 .flags = GENL_ADMIN_PERM,
7519 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7520 NL80211_FLAG_NEED_RTNL,
7524 .cmd = NL80211_CMD_CONNECT,
7525 .doit = nl80211_connect,
7526 .policy = nl80211_policy,
7527 .flags = GENL_ADMIN_PERM,
7528 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7529 NL80211_FLAG_NEED_RTNL,
7532 .cmd = NL80211_CMD_DISCONNECT,
7533 .doit = nl80211_disconnect,
7534 .policy = nl80211_policy,
7535 .flags = GENL_ADMIN_PERM,
7536 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7537 NL80211_FLAG_NEED_RTNL,
7540 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7541 .doit = nl80211_wiphy_netns,
7542 .policy = nl80211_policy,
7543 .flags = GENL_ADMIN_PERM,
7544 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7545 NL80211_FLAG_NEED_RTNL,
7548 .cmd = NL80211_CMD_GET_SURVEY,
7549 .policy = nl80211_policy,
7550 .dumpit = nl80211_dump_survey,
7553 .cmd = NL80211_CMD_SET_PMKSA,
7554 .doit = nl80211_setdel_pmksa,
7555 .policy = nl80211_policy,
7556 .flags = GENL_ADMIN_PERM,
7557 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7558 NL80211_FLAG_NEED_RTNL,
7561 .cmd = NL80211_CMD_DEL_PMKSA,
7562 .doit = nl80211_setdel_pmksa,
7563 .policy = nl80211_policy,
7564 .flags = GENL_ADMIN_PERM,
7565 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7566 NL80211_FLAG_NEED_RTNL,
7569 .cmd = NL80211_CMD_FLUSH_PMKSA,
7570 .doit = nl80211_flush_pmksa,
7571 .policy = nl80211_policy,
7572 .flags = GENL_ADMIN_PERM,
7573 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7574 NL80211_FLAG_NEED_RTNL,
7577 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7578 .doit = nl80211_remain_on_channel,
7579 .policy = nl80211_policy,
7580 .flags = GENL_ADMIN_PERM,
7581 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7582 NL80211_FLAG_NEED_RTNL,
7585 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7586 .doit = nl80211_cancel_remain_on_channel,
7587 .policy = nl80211_policy,
7588 .flags = GENL_ADMIN_PERM,
7589 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7590 NL80211_FLAG_NEED_RTNL,
7593 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7594 .doit = nl80211_set_tx_bitrate_mask,
7595 .policy = nl80211_policy,
7596 .flags = GENL_ADMIN_PERM,
7597 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7598 NL80211_FLAG_NEED_RTNL,
7601 .cmd = NL80211_CMD_REGISTER_FRAME,
7602 .doit = nl80211_register_mgmt,
7603 .policy = nl80211_policy,
7604 .flags = GENL_ADMIN_PERM,
7605 .internal_flags = NL80211_FLAG_NEED_WDEV |
7606 NL80211_FLAG_NEED_RTNL,
7609 .cmd = NL80211_CMD_FRAME,
7610 .doit = nl80211_tx_mgmt,
7611 .policy = nl80211_policy,
7612 .flags = GENL_ADMIN_PERM,
7613 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7614 NL80211_FLAG_NEED_RTNL,
7617 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7618 .doit = nl80211_tx_mgmt_cancel_wait,
7619 .policy = nl80211_policy,
7620 .flags = GENL_ADMIN_PERM,
7621 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7622 NL80211_FLAG_NEED_RTNL,
7625 .cmd = NL80211_CMD_SET_POWER_SAVE,
7626 .doit = nl80211_set_power_save,
7627 .policy = nl80211_policy,
7628 .flags = GENL_ADMIN_PERM,
7629 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7630 NL80211_FLAG_NEED_RTNL,
7633 .cmd = NL80211_CMD_GET_POWER_SAVE,
7634 .doit = nl80211_get_power_save,
7635 .policy = nl80211_policy,
7636 /* can be retrieved by unprivileged users */
7637 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7638 NL80211_FLAG_NEED_RTNL,
7641 .cmd = NL80211_CMD_SET_CQM,
7642 .doit = nl80211_set_cqm,
7643 .policy = nl80211_policy,
7644 .flags = GENL_ADMIN_PERM,
7645 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7646 NL80211_FLAG_NEED_RTNL,
7649 .cmd = NL80211_CMD_SET_CHANNEL,
7650 .doit = nl80211_set_channel,
7651 .policy = nl80211_policy,
7652 .flags = GENL_ADMIN_PERM,
7653 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7654 NL80211_FLAG_NEED_RTNL,
7657 .cmd = NL80211_CMD_SET_WDS_PEER,
7658 .doit = nl80211_set_wds_peer,
7659 .policy = nl80211_policy,
7660 .flags = GENL_ADMIN_PERM,
7661 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7662 NL80211_FLAG_NEED_RTNL,
7665 .cmd = NL80211_CMD_JOIN_MESH,
7666 .doit = nl80211_join_mesh,
7667 .policy = nl80211_policy,
7668 .flags = GENL_ADMIN_PERM,
7669 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7670 NL80211_FLAG_NEED_RTNL,
7673 .cmd = NL80211_CMD_LEAVE_MESH,
7674 .doit = nl80211_leave_mesh,
7675 .policy = nl80211_policy,
7676 .flags = GENL_ADMIN_PERM,
7677 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7678 NL80211_FLAG_NEED_RTNL,
7682 .cmd = NL80211_CMD_GET_WOWLAN,
7683 .doit = nl80211_get_wowlan,
7684 .policy = nl80211_policy,
7685 /* can be retrieved by unprivileged users */
7686 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7687 NL80211_FLAG_NEED_RTNL,
7690 .cmd = NL80211_CMD_SET_WOWLAN,
7691 .doit = nl80211_set_wowlan,
7692 .policy = nl80211_policy,
7693 .flags = GENL_ADMIN_PERM,
7694 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7695 NL80211_FLAG_NEED_RTNL,
7699 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7700 .doit = nl80211_set_rekey_data,
7701 .policy = nl80211_policy,
7702 .flags = GENL_ADMIN_PERM,
7703 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7704 NL80211_FLAG_NEED_RTNL,
7707 .cmd = NL80211_CMD_TDLS_MGMT,
7708 .doit = nl80211_tdls_mgmt,
7709 .policy = nl80211_policy,
7710 .flags = GENL_ADMIN_PERM,
7711 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7712 NL80211_FLAG_NEED_RTNL,
7715 .cmd = NL80211_CMD_TDLS_OPER,
7716 .doit = nl80211_tdls_oper,
7717 .policy = nl80211_policy,
7718 .flags = GENL_ADMIN_PERM,
7719 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7720 NL80211_FLAG_NEED_RTNL,
7723 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7724 .doit = nl80211_register_unexpected_frame,
7725 .policy = nl80211_policy,
7726 .flags = GENL_ADMIN_PERM,
7727 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7728 NL80211_FLAG_NEED_RTNL,
7731 .cmd = NL80211_CMD_PROBE_CLIENT,
7732 .doit = nl80211_probe_client,
7733 .policy = nl80211_policy,
7734 .flags = GENL_ADMIN_PERM,
7735 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7736 NL80211_FLAG_NEED_RTNL,
7739 .cmd = NL80211_CMD_REGISTER_BEACONS,
7740 .doit = nl80211_register_beacons,
7741 .policy = nl80211_policy,
7742 .flags = GENL_ADMIN_PERM,
7743 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7744 NL80211_FLAG_NEED_RTNL,
7747 .cmd = NL80211_CMD_SET_NOACK_MAP,
7748 .doit = nl80211_set_noack_map,
7749 .policy = nl80211_policy,
7750 .flags = GENL_ADMIN_PERM,
7751 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7752 NL80211_FLAG_NEED_RTNL,
7755 .cmd = NL80211_CMD_START_P2P_DEVICE,
7756 .doit = nl80211_start_p2p_device,
7757 .policy = nl80211_policy,
7758 .flags = GENL_ADMIN_PERM,
7759 .internal_flags = NL80211_FLAG_NEED_WDEV |
7760 NL80211_FLAG_NEED_RTNL,
7763 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7764 .doit = nl80211_stop_p2p_device,
7765 .policy = nl80211_policy,
7766 .flags = GENL_ADMIN_PERM,
7767 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7768 NL80211_FLAG_NEED_RTNL,
7771 .cmd = NL80211_CMD_SET_MCAST_RATE,
7772 .doit = nl80211_set_mcast_rate,
7773 .policy = nl80211_policy,
7774 .flags = GENL_ADMIN_PERM,
7775 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7776 NL80211_FLAG_NEED_RTNL,
7780 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7784 /* multicast groups */
7785 static struct genl_multicast_group nl80211_config_mcgrp = {
7788 static struct genl_multicast_group nl80211_scan_mcgrp = {
7791 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7792 .name = "regulatory",
7795 /* notification functions */
7797 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7799 struct sk_buff *msg;
7801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7805 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7810 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7811 nl80211_config_mcgrp.id, GFP_KERNEL);
7814 static int nl80211_add_scan_req(struct sk_buff *msg,
7815 struct cfg80211_registered_device *rdev)
7817 struct cfg80211_scan_request *req = rdev->scan_req;
7818 struct nlattr *nest;
7821 ASSERT_RDEV_LOCK(rdev);
7826 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7828 goto nla_put_failure;
7829 for (i = 0; i < req->n_ssids; i++) {
7830 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7831 goto nla_put_failure;
7833 nla_nest_end(msg, nest);
7835 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7837 goto nla_put_failure;
7838 for (i = 0; i < req->n_channels; i++) {
7839 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7840 goto nla_put_failure;
7842 nla_nest_end(msg, nest);
7845 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7846 goto nla_put_failure;
7849 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7856 static int nl80211_send_scan_msg(struct sk_buff *msg,
7857 struct cfg80211_registered_device *rdev,
7858 struct wireless_dev *wdev,
7859 u32 portid, u32 seq, int flags,
7864 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
7868 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7869 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7870 wdev->netdev->ifindex)) ||
7871 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
7872 goto nla_put_failure;
7874 /* ignore errors and send incomplete event anyway */
7875 nl80211_add_scan_req(msg, rdev);
7877 return genlmsg_end(msg, hdr);
7880 genlmsg_cancel(msg, hdr);
7885 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7886 struct cfg80211_registered_device *rdev,
7887 struct net_device *netdev,
7888 u32 portid, u32 seq, int flags, u32 cmd)
7892 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
7896 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7897 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7898 goto nla_put_failure;
7900 return genlmsg_end(msg, hdr);
7903 genlmsg_cancel(msg, hdr);
7907 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7908 struct wireless_dev *wdev)
7910 struct sk_buff *msg;
7912 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7916 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7917 NL80211_CMD_TRIGGER_SCAN) < 0) {
7922 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7923 nl80211_scan_mcgrp.id, GFP_KERNEL);
7926 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7927 struct wireless_dev *wdev)
7929 struct sk_buff *msg;
7931 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7935 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7936 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7941 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7942 nl80211_scan_mcgrp.id, GFP_KERNEL);
7945 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7946 struct wireless_dev *wdev)
7948 struct sk_buff *msg;
7950 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7954 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7955 NL80211_CMD_SCAN_ABORTED) < 0) {
7960 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7961 nl80211_scan_mcgrp.id, GFP_KERNEL);
7964 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7965 struct net_device *netdev)
7967 struct sk_buff *msg;
7969 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7973 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7974 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7979 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7980 nl80211_scan_mcgrp.id, GFP_KERNEL);
7983 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7984 struct net_device *netdev, u32 cmd)
7986 struct sk_buff *msg;
7988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7992 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7997 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7998 nl80211_scan_mcgrp.id, GFP_KERNEL);
8002 * This can happen on global regulatory changes or device specific settings
8003 * based on custom world regulatory domains.
8005 void nl80211_send_reg_change_event(struct regulatory_request *request)
8007 struct sk_buff *msg;
8010 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8014 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8020 /* Userspace can always count this one always being set */
8021 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8022 goto nla_put_failure;
8024 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8025 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8026 NL80211_REGDOM_TYPE_WORLD))
8027 goto nla_put_failure;
8028 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8029 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8030 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8031 goto nla_put_failure;
8032 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8033 request->intersect) {
8034 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8035 NL80211_REGDOM_TYPE_INTERSECTION))
8036 goto nla_put_failure;
8038 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8039 NL80211_REGDOM_TYPE_COUNTRY) ||
8040 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8042 goto nla_put_failure;
8045 if (wiphy_idx_valid(request->wiphy_idx) &&
8046 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8047 goto nla_put_failure;
8049 genlmsg_end(msg, hdr);
8052 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8059 genlmsg_cancel(msg, hdr);
8063 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8064 struct net_device *netdev,
8065 const u8 *buf, size_t len,
8066 enum nl80211_commands cmd, 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(msg, NL80211_ATTR_FRAME, len, buf))
8084 goto nla_put_failure;
8086 genlmsg_end(msg, hdr);
8088 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8089 nl80211_mlme_mcgrp.id, gfp);
8093 genlmsg_cancel(msg, hdr);
8097 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
8098 struct net_device *netdev, const u8 *buf,
8099 size_t len, gfp_t gfp)
8101 nl80211_send_mlme_event(rdev, netdev, buf, len,
8102 NL80211_CMD_AUTHENTICATE, gfp);
8105 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8106 struct net_device *netdev, const u8 *buf,
8107 size_t len, gfp_t gfp)
8109 nl80211_send_mlme_event(rdev, netdev, buf, len,
8110 NL80211_CMD_ASSOCIATE, gfp);
8113 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
8114 struct net_device *netdev, const u8 *buf,
8115 size_t len, gfp_t gfp)
8117 nl80211_send_mlme_event(rdev, netdev, buf, len,
8118 NL80211_CMD_DEAUTHENTICATE, gfp);
8121 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8122 struct net_device *netdev, const u8 *buf,
8123 size_t len, gfp_t gfp)
8125 nl80211_send_mlme_event(rdev, netdev, buf, len,
8126 NL80211_CMD_DISASSOCIATE, gfp);
8129 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8130 struct net_device *netdev, const u8 *buf,
8131 size_t len, gfp_t gfp)
8133 nl80211_send_mlme_event(rdev, netdev, buf, len,
8134 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8137 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8138 struct net_device *netdev, const u8 *buf,
8139 size_t len, gfp_t gfp)
8141 nl80211_send_mlme_event(rdev, netdev, buf, len,
8142 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8145 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8146 struct net_device *netdev, int cmd,
8147 const u8 *addr, gfp_t gfp)
8149 struct sk_buff *msg;
8152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8156 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8162 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8163 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8164 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8165 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8166 goto nla_put_failure;
8168 genlmsg_end(msg, hdr);
8170 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8171 nl80211_mlme_mcgrp.id, gfp);
8175 genlmsg_cancel(msg, hdr);
8179 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
8180 struct net_device *netdev, const u8 *addr,
8183 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
8187 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
8188 struct net_device *netdev, const u8 *addr,
8191 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8195 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8196 struct net_device *netdev, const u8 *bssid,
8197 const u8 *req_ie, size_t req_ie_len,
8198 const u8 *resp_ie, size_t resp_ie_len,
8199 u16 status, gfp_t gfp)
8201 struct sk_buff *msg;
8204 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8208 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8214 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8215 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8216 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8217 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8219 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8221 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8222 goto nla_put_failure;
8224 genlmsg_end(msg, hdr);
8226 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8227 nl80211_mlme_mcgrp.id, gfp);
8231 genlmsg_cancel(msg, hdr);
8236 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8237 struct net_device *netdev, const u8 *bssid,
8238 const u8 *req_ie, size_t req_ie_len,
8239 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8241 struct sk_buff *msg;
8244 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8248 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8254 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8255 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8256 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8258 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8260 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8261 goto nla_put_failure;
8263 genlmsg_end(msg, hdr);
8265 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8266 nl80211_mlme_mcgrp.id, gfp);
8270 genlmsg_cancel(msg, hdr);
8275 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8276 struct net_device *netdev, u16 reason,
8277 const u8 *ie, size_t ie_len, bool from_ap)
8279 struct sk_buff *msg;
8282 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8286 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8292 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8293 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8294 (from_ap && reason &&
8295 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8297 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8298 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8299 goto nla_put_failure;
8301 genlmsg_end(msg, hdr);
8303 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8304 nl80211_mlme_mcgrp.id, GFP_KERNEL);
8308 genlmsg_cancel(msg, hdr);
8313 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8314 struct net_device *netdev, const u8 *bssid,
8317 struct sk_buff *msg;
8320 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8330 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8331 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8332 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8333 goto nla_put_failure;
8335 genlmsg_end(msg, hdr);
8337 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8338 nl80211_mlme_mcgrp.id, gfp);
8342 genlmsg_cancel(msg, hdr);
8346 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8347 struct net_device *netdev,
8348 const u8 *macaddr, const u8* ie, u8 ie_len,
8351 struct sk_buff *msg;
8354 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8358 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8364 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8365 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8366 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8368 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8369 goto nla_put_failure;
8371 genlmsg_end(msg, hdr);
8373 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8374 nl80211_mlme_mcgrp.id, gfp);
8378 genlmsg_cancel(msg, hdr);
8382 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8383 struct net_device *netdev, const u8 *addr,
8384 enum nl80211_key_type key_type, int key_id,
8385 const u8 *tsc, gfp_t gfp)
8387 struct sk_buff *msg;
8390 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8394 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8400 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8401 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8402 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8403 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8405 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8406 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8407 goto nla_put_failure;
8409 genlmsg_end(msg, hdr);
8411 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8412 nl80211_mlme_mcgrp.id, gfp);
8416 genlmsg_cancel(msg, hdr);
8420 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8421 struct ieee80211_channel *channel_before,
8422 struct ieee80211_channel *channel_after)
8424 struct sk_buff *msg;
8426 struct nlattr *nl_freq;
8428 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
8432 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8439 * Since we are applying the beacon hint to a wiphy we know its
8440 * wiphy_idx is valid
8442 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8443 goto nla_put_failure;
8446 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8448 goto nla_put_failure;
8449 if (nl80211_msg_put_channel(msg, channel_before))
8450 goto nla_put_failure;
8451 nla_nest_end(msg, nl_freq);
8454 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8456 goto nla_put_failure;
8457 if (nl80211_msg_put_channel(msg, channel_after))
8458 goto nla_put_failure;
8459 nla_nest_end(msg, nl_freq);
8461 genlmsg_end(msg, hdr);
8464 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8471 genlmsg_cancel(msg, hdr);
8475 static void nl80211_send_remain_on_chan_event(
8476 int cmd, struct cfg80211_registered_device *rdev,
8477 struct wireless_dev *wdev, u64 cookie,
8478 struct ieee80211_channel *chan,
8479 unsigned int duration, gfp_t gfp)
8481 struct sk_buff *msg;
8484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8488 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8494 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8495 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8496 wdev->netdev->ifindex)) ||
8497 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
8498 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8499 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
8500 NL80211_CHAN_NO_HT) ||
8501 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8502 goto nla_put_failure;
8504 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8505 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8506 goto nla_put_failure;
8508 genlmsg_end(msg, hdr);
8510 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8511 nl80211_mlme_mcgrp.id, gfp);
8515 genlmsg_cancel(msg, hdr);
8519 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8520 struct wireless_dev *wdev, u64 cookie,
8521 struct ieee80211_channel *chan,
8522 unsigned int duration, gfp_t gfp)
8524 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8525 rdev, wdev, cookie, chan,
8529 void nl80211_send_remain_on_channel_cancel(
8530 struct cfg80211_registered_device *rdev,
8531 struct wireless_dev *wdev,
8532 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
8534 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8535 rdev, wdev, cookie, chan, 0, gfp);
8538 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8539 struct net_device *dev, const u8 *mac_addr,
8540 struct station_info *sinfo, gfp_t gfp)
8542 struct sk_buff *msg;
8544 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8548 if (nl80211_send_station(msg, 0, 0, 0,
8549 rdev, dev, mac_addr, sinfo) < 0) {
8554 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8555 nl80211_mlme_mcgrp.id, gfp);
8558 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8559 struct net_device *dev, const u8 *mac_addr,
8562 struct sk_buff *msg;
8565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8569 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8575 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8576 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8577 goto nla_put_failure;
8579 genlmsg_end(msg, hdr);
8581 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8582 nl80211_mlme_mcgrp.id, gfp);
8586 genlmsg_cancel(msg, hdr);
8590 void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8591 struct net_device *dev, const u8 *mac_addr,
8592 enum nl80211_connect_failed_reason reason,
8595 struct sk_buff *msg;
8598 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8602 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8608 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8609 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8610 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8611 goto nla_put_failure;
8613 genlmsg_end(msg, hdr);
8615 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8616 nl80211_mlme_mcgrp.id, gfp);
8620 genlmsg_cancel(msg, hdr);
8624 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8625 const u8 *addr, gfp_t gfp)
8627 struct wireless_dev *wdev = dev->ieee80211_ptr;
8628 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8629 struct sk_buff *msg;
8632 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
8637 msg = nlmsg_new(100, gfp);
8641 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8647 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8648 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8649 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8650 goto nla_put_failure;
8652 err = genlmsg_end(msg, hdr);
8658 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8662 genlmsg_cancel(msg, hdr);
8667 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8669 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8673 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8674 const u8 *addr, gfp_t gfp)
8676 return __nl80211_unexpected_frame(dev,
8677 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8681 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8682 struct wireless_dev *wdev, u32 nlportid,
8683 int freq, int sig_dbm,
8684 const u8 *buf, size_t len, gfp_t gfp)
8686 struct net_device *netdev = wdev->netdev;
8687 struct sk_buff *msg;
8690 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8694 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8700 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8701 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8702 netdev->ifindex)) ||
8703 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8705 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8706 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8707 goto nla_put_failure;
8709 genlmsg_end(msg, hdr);
8711 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8714 genlmsg_cancel(msg, hdr);
8719 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8720 struct wireless_dev *wdev, u64 cookie,
8721 const u8 *buf, size_t len, bool ack,
8724 struct net_device *netdev = wdev->netdev;
8725 struct sk_buff *msg;
8728 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8732 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8738 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8739 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8740 netdev->ifindex)) ||
8741 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8742 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8743 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8744 goto nla_put_failure;
8746 genlmsg_end(msg, hdr);
8748 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8752 genlmsg_cancel(msg, hdr);
8757 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8758 struct net_device *netdev,
8759 enum nl80211_cqm_rssi_threshold_event rssi_event,
8762 struct sk_buff *msg;
8763 struct nlattr *pinfoattr;
8766 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8770 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8776 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8777 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8778 goto nla_put_failure;
8780 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8782 goto nla_put_failure;
8784 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8786 goto nla_put_failure;
8788 nla_nest_end(msg, pinfoattr);
8790 genlmsg_end(msg, hdr);
8792 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8793 nl80211_mlme_mcgrp.id, gfp);
8797 genlmsg_cancel(msg, hdr);
8801 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8802 struct net_device *netdev, const u8 *bssid,
8803 const u8 *replay_ctr, gfp_t gfp)
8805 struct sk_buff *msg;
8806 struct nlattr *rekey_attr;
8809 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8813 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8819 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8820 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8821 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8822 goto nla_put_failure;
8824 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8826 goto nla_put_failure;
8828 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8829 NL80211_REPLAY_CTR_LEN, replay_ctr))
8830 goto nla_put_failure;
8832 nla_nest_end(msg, rekey_attr);
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);
8845 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8846 struct net_device *netdev, int index,
8847 const u8 *bssid, bool preauth, gfp_t gfp)
8849 struct sk_buff *msg;
8850 struct nlattr *attr;
8853 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8857 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8863 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8864 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8865 goto nla_put_failure;
8867 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8869 goto nla_put_failure;
8871 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8872 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8874 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8875 goto nla_put_failure;
8877 nla_nest_end(msg, attr);
8879 genlmsg_end(msg, hdr);
8881 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8882 nl80211_mlme_mcgrp.id, gfp);
8886 genlmsg_cancel(msg, hdr);
8890 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8891 struct net_device *netdev,
8892 struct cfg80211_chan_def *chandef, gfp_t gfp)
8894 struct sk_buff *msg;
8897 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8901 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8907 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8908 goto nla_put_failure;
8910 if (nl80211_send_chandef(msg, chandef))
8911 goto nla_put_failure;
8913 genlmsg_end(msg, hdr);
8915 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8916 nl80211_mlme_mcgrp.id, gfp);
8920 genlmsg_cancel(msg, hdr);
8925 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8926 struct net_device *netdev, const u8 *peer,
8927 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8929 struct sk_buff *msg;
8930 struct nlattr *pinfoattr;
8933 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8937 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8943 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8944 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8945 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8946 goto nla_put_failure;
8948 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8950 goto nla_put_failure;
8952 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8953 goto nla_put_failure;
8955 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8956 goto nla_put_failure;
8958 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8959 goto nla_put_failure;
8961 nla_nest_end(msg, pinfoattr);
8963 genlmsg_end(msg, hdr);
8965 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8966 nl80211_mlme_mcgrp.id, gfp);
8970 genlmsg_cancel(msg, hdr);
8975 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8976 struct net_device *netdev, const u8 *peer,
8977 u32 num_packets, gfp_t gfp)
8979 struct sk_buff *msg;
8980 struct nlattr *pinfoattr;
8983 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8987 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8993 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8994 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8995 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8996 goto nla_put_failure;
8998 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9000 goto nla_put_failure;
9002 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9003 goto nla_put_failure;
9005 nla_nest_end(msg, pinfoattr);
9007 genlmsg_end(msg, hdr);
9009 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9010 nl80211_mlme_mcgrp.id, gfp);
9014 genlmsg_cancel(msg, hdr);
9018 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9019 u64 cookie, bool acked, gfp_t gfp)
9021 struct wireless_dev *wdev = dev->ieee80211_ptr;
9022 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9023 struct sk_buff *msg;
9027 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9029 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9034 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9040 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9041 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9042 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9043 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9044 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9045 goto nla_put_failure;
9047 err = genlmsg_end(msg, hdr);
9053 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9054 nl80211_mlme_mcgrp.id, gfp);
9058 genlmsg_cancel(msg, hdr);
9061 EXPORT_SYMBOL(cfg80211_probe_status);
9063 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9064 const u8 *frame, size_t len,
9065 int freq, int sig_dbm)
9067 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9068 struct sk_buff *msg;
9070 struct cfg80211_beacon_registration *reg;
9072 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9074 spin_lock_bh(&rdev->beacon_registrations_lock);
9075 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9076 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9078 spin_unlock_bh(&rdev->beacon_registrations_lock);
9082 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9084 goto nla_put_failure;
9086 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9088 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9090 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9091 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9092 goto nla_put_failure;
9094 genlmsg_end(msg, hdr);
9096 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9098 spin_unlock_bh(&rdev->beacon_registrations_lock);
9102 spin_unlock_bh(&rdev->beacon_registrations_lock);
9104 genlmsg_cancel(msg, hdr);
9107 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9109 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9110 enum nl80211_tdls_operation oper,
9111 u16 reason_code, gfp_t gfp)
9113 struct wireless_dev *wdev = dev->ieee80211_ptr;
9114 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9115 struct sk_buff *msg;
9119 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9126 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9132 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9133 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9134 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9135 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9137 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9138 goto nla_put_failure;
9140 err = genlmsg_end(msg, hdr);
9146 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9147 nl80211_mlme_mcgrp.id, gfp);
9151 genlmsg_cancel(msg, hdr);
9154 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9156 static int nl80211_netlink_notify(struct notifier_block * nb,
9157 unsigned long state,
9160 struct netlink_notify *notify = _notify;
9161 struct cfg80211_registered_device *rdev;
9162 struct wireless_dev *wdev;
9163 struct cfg80211_beacon_registration *reg, *tmp;
9165 if (state != NETLINK_URELEASE)
9170 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
9171 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
9172 cfg80211_mlme_unregister_socket(wdev, notify->portid);
9174 spin_lock_bh(&rdev->beacon_registrations_lock);
9175 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9177 if (reg->nlportid == notify->portid) {
9178 list_del(®->list);
9183 spin_unlock_bh(&rdev->beacon_registrations_lock);
9191 static struct notifier_block nl80211_netlink_notifier = {
9192 .notifier_call = nl80211_netlink_notify,
9195 /* initialisation/exit functions */
9197 int nl80211_init(void)
9201 err = genl_register_family_with_ops(&nl80211_fam,
9202 nl80211_ops, ARRAY_SIZE(nl80211_ops));
9206 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9210 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9214 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9218 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9222 #ifdef CONFIG_NL80211_TESTMODE
9223 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9228 err = netlink_register_notifier(&nl80211_netlink_notifier);
9234 genl_unregister_family(&nl80211_fam);
9238 void nl80211_exit(void)
9240 netlink_unregister_notifier(&nl80211_netlink_notifier);
9241 genl_unregister_family(&nl80211_fam);